Class / Patent application number | Description | Number of patent applications / Date published |
073460000 | Dynamic (spinning) | 88 |
20080282799 | METHODS AND SYSTEMS FOR WHEEL BALANCER MATCHING AND FLAT SPOT CORRECTION - Methods and systems for a computer implemented method of analyzing a vehicle wheel assembly including a tire and a rim is provided. The method includes removably mounting a wheel assembly on a shaft having a longitudinal axis and being rotatable about the longitudinal axis to rotate the wheel assembly, applying a substantially radial force to the wheel assembly during rotation thereof, and measuring variations in the radial force from at least one of radial runout, tire uniformity, and tire flatspotting. The method also includes determining a condition of the wheel assembly based on a spectral density analysis of the measured variations. | 11-20-2008 |
20090133494 | METHOD AND APPARATUS FOR BALANCING A ROTOR - A midlength balanced rotor comprises a rotor assembly for rotation about an axis of rotation defining at least one of an axially extended, radially concentric, centerline borehole; an array of radially or tangentially distributed, axially extended pockets; and a series of radially or tangentially distributed, axially extended slots. At least one balance weight is positioned within at least one of the axially extended, radially concentric, centerline borehole, the array of radially or tangentially distributed, axially extended pockets, or the radially or tangentially distributed, axially extended slots to balance the rotor assembly. Alternatively, at least one balance correcting mass is removed from at least one of the axially extended, radially concentric, centerline borehole, the array of radially or tangentially distributed, axially extended pockets, or the radially or tangentially distributed, axially extended slots to balance the rotor assembly. In addition, a method of midlength balancing a rotor comprises the steps of providing a rotor assembly with at least one of an axially extended, radially concentric, centerline borehole; an array of radially or tangentially distributed, axially extended pockets; and a series of radially or tangentially distributed, axially extended slots; rotating the rotor shaft about an axis of rotation; determining unbalance of the rotor shaft; and adding or removing weight to at least one of said an axially extended, radially concentric, centerline borehole; array of radially or tangentially distributed, axially extended pockets; or series of radially or tangentially distributed, axially extended slots, to balance the rotor shaft. | 05-28-2009 |
20090145221 | Method for correcting the eccentricity of a vehicle wheel in balancing machines or the like - The method for correcting the eccentricity of a vehicle wheel in balancing machines or the like, comprises: a reading phase for reading the radial eccentricity deviation of the rim of a wheel to be balanced and the radial eccentricity deviation of the tire of the wheel, read at a plurality of predetermined angular positions along the entire outer perimeter of the rim and of the tire; a processing phase of the total radial eccentricity deviation values of the wheel, starting with the radial eccentricity deviations of the rim and of the tire read and according to the angular coupling positions between the rim and the tire; a definition phase for defining a geometric irregularity index of the wheel, determined according to the total radial eccentricity deviation values of the wheel and according to the angular coupling position between the rim and the tire; a determination phase for determining an optimal coupling angular position between the tire and the rim, selected among all the possible angular coupling positions, in which the value of the above mentioned index is minimum. | 06-11-2009 |
20090255334 | Dynamic balancing apparatus and method using simple harmonic angular motion - Provided is a dynamic balancing apparatus using a simple harmonic angular motion, including a rotational shaft on which a rotational body having an unbalanced mass is installed; a simple angular motion generator for periodically vibrating the rotational shaft; a support for supporting both sides of the rotational shaft; an angular vibration measuring sensor for measuring the simple harmonic angular motion of the rotational shaft; and force or vibration transducers for measuring applied force acting on or vibration transferred to the support by means of the simple harmonic motion of the unbalance mass. | 10-15-2009 |
20090266161 | Balancing machine for balancing vehicle wheels - The balancing machine for balancing vehicle wheels comprises a base frame supporting a balancing spindle for balancing a vehicle wheel, a lifting device associable with the base frame and suitable for fitting and removing the wheel onto and off the balancing spindle, and a protection guard associable with the base frame and suitable for covering the wheel fitted on the balancing spindle, the lifting device and the protection guard being integrated together in a multifunctional device. | 10-29-2009 |
20090301192 | METHOD AND SYSTEM FOR DETERMINING NON-UNIFORMITY CHARACTERISTICS OF A VEHICLE TIRE AND RIM - A method and system for a wheel assembly service system are provided. The system includes a rotatable spindle configured to receive a wheel assembly wherein the wheel assembly includes at least a rim and a tire. The system further includes a load device configured to apply a load to the tire during a rotation of the wheel assembly on the spindle, and a controller configured to determine a first force variation vector of the wheel assembly, initiating rotation of the tire with respect to the rim, determine a second force variation vector of the wheel assembly with the tire rotated with respect to the rim, and determine a force variation of at least one of the tire and the wheel using the first and second force variation vectors. The system also outputs at least one of the determined force variation vector values. | 12-10-2009 |
20100000319 | APPARATUS FOR MEASURING FORCES WHICH ARE PRODUCED BY AN UNBALANCE OF A ROTARY MEMBER - Apparatus for measuring forces which are produced by an unbalance of a rotary member, comprising
| 01-07-2010 |
20100199760 | Method and Apparatus for Analysing Vehicle Wheels - A method of analysing a vehicle wheel with a tyre, comprising rotating the vehicle wheel with a first number of revolutions for a first period of time, wherein a tread surface of the tyre is pressed with a first force against a first rotatable drum, the first force is measured with a first measuring device, and the first force is kept substantially constant; and rotating the vehicle wheel with a second number of revolutions for a second period of time, wherein the tread surface is pressed with a second force against the first drum or a second rotatable drum, and the second force is measured. An apparatus for analysing a vehicle wheel with a tyre, wherein the vehicle wheel is rotated with a first number of revolutions for a first period of time, wherein a tread surface of the tyre is pressed with a first force against a first rotatable drum, the first force is measured with a first measuring device, and the first force is kept substantially constant; and the vehicle wheel is rotated with a second number of revolutions for a second period of time, wherein the tread surface is pressed with a second force against the first drum or a second rotatable drum, and the second force is measured. | 08-12-2010 |
20100212422 | METHOD AND APPARATUS FOR PRE-SPINNING ROTOR FORGINGS - A method and system for relieving forging induced residual stresses in a rotor forging balances a pre-spin machine with the forging mounted thereon at a first rotational speed and then pre-spins the forging with it mounted on the machine at a substantially greater second rotational speed. A one per rev sensor is used for determining a weight placement angle and a vibration sensor is used for determining an amount of weight to add to a spinning assembly including the forging during the balancing. High-density non-metallic balance weights adhesively attached on an inside surface of the forging or spinning assembly may be used. The rotational inertia of the spinning assembly may be checked during a spin up period by determining a rate of rotational acceleration vs. torque applied to the spinning assembly and used to stop the pre-spinning if it is to great. | 08-26-2010 |
20100269588 | DEVICE FOR DYNAMICALLY MEASURING THE IMBALANCE OF THE ROTOR OF A TURBOCHARGER - A device for the dynamic measurement of the imbalance of a turbo rotor, which is rotatably mounted in a housing portion ( | 10-28-2010 |
20110179863 | DEVICE AND METHOD FOR MONITORING OF ROTATING MACHINE ELEMENTS - A rotating machine element is monitored for displacements using co-rotating sensors for acceleration, rotation or the direction of gravitation. In doing so, the sensor data are received by a, likewise, co-rotating electronic unit. The data can also be stored and further processed in this electronic unit. | 07-28-2011 |
20110290017 | BALANCING DEVICE HAVING ADDITIONAL BEARING - A device for measuring the rotational imbalance of a specimen, having a spindle unit with a spindle, which is embodied to hold the specimen and to allow it to rotate at a testing speed, a holder suspension by means of which the spindle unit is anchored to the machine base in pendulum fashion such that the imbalance forces occurring during the measurement operation are able to move the spindle unit back and forth in a predetermined measuring direction M, and a sensor arrangement that detects at least one imbalance parameter occurring in the measuring direction M during rotation of the spindle, wherein the spindle unit is supported by means of at least one auxiliary bearing that is only able to transmit forces in the direction of a normal N to the measuring direction M. | 12-01-2011 |
20120060602 | Dynamic Balancing of Vehicle Wheel Assemblies - A method to balance a wheel assembly. In a first aspect, corrective balance weights and position thereof are determined by a balancer and a closest corrective balance weight thereto is chosen, as well as one of higher and one of lower weight increment for each plane; chosen weights are paired to provide minimized residual and then attached to the planes of the wheel assembly. In a second aspect, imbalance weights are determined by a balancer; a pair of corrective balance weights, one at least ½ the determined imbalance weight are chosen, each separated by determined position angles to minimize residual and then respectively attached to the corrective balance plane(s) of the wheel assembly. | 03-15-2012 |
20120060603 | Apparatus for Rotatably Mounting a Rotor to be Balanced - An apparatus for rotatably mounting a rotor to be balanced is provided. The apparatus include a rotatably mounted balancing spindle to which the rotor to be balanced is to be non-rotatingly connected, at least one bearing block, a plurality of spring bars aligned parallel to the spindle axis and used to mount the balancing spindle on the bearing block such that the balancing spindle is able to vibrate, and a drive mechanism for the balancing spindle. The spring bars are arranged in more than two planes at different distances from the spindle or in planes having different rotary angular positions about the spindle axis. | 03-15-2012 |
20120186344 | METHOD AND SYSTEM FOR DETERMINING NON-UNIFORMITY CHARACTERISTICS OF A VEHICLE TIRE AND RIM - A method and system for a wheel assembly service system are provided. The system includes a rotatable spindle configured to receive a wheel assembly wherein the wheel assembly includes at least a rim and a tire. The system further includes a load device configured to apply a load to the tire during a rotation of the wheel assembly on the spindle, and a controller configured to determine a first force variation vector of the wheel assembly, prompt a user to rotate the tire with respect to the rim, determine a second force variation vector of the wheel assembly with the tire rotated with respect to the rim, and determine a force variation of at least one of the tire and the wheel using the first and second force variation vectors. The system also outputs at least one of the determined force variation vector values. | 07-26-2012 |
20120227485 | Balanced and Eccentric Mass Compact Pendulum with Dynamic Tuning - A pendulum combining balanced and eccentric masses oscillates with a period that is rapidly and continuously varied by shifting the balanced masses and eccentric mass to and from the rotational axis, by controlling the amplitude of oscillation and, in a rolling embodiment, by varying the curvature of the rolling surface. Long period oscillations can be achieved without the large heights required by an equivalent conventional pendulum. The pendulum can be substantively isochronous. The pendulum can be applied to harvesting vibrational energy and especially to wave energy extraction by dynamically achieving resonance over the typical frequency range of energetic ocean swell. | 09-13-2012 |
20120304764 | BALANCING MACHINE WITH AUTOMATIC INDEX MEASURING - The invention relates to a balancing machine for measuring the rotating unbalance of a tool holder in two different clampings, comprising a spindle which can be set into rotation. The spindle comprises an automatically actuatable coupling, by which the tool holder can be coupled rigidly to the spindle in a first position in order to rotate with the spindle around the rotational axis of the tool holder and the tool holder can be coupled rigidly to the spindle in a second position in order to rotate with the spindle around the rotational axis of the tool holder. The balancing machine also comprises at least one measuring sensor for determining the rotating unbalance of the tool holder rotating in the spindle unit, wherein the device has a brake which retains the tool holder. | 12-06-2012 |
20130111989 | COUPLING FOR ROTOR BALANCING - Systems, devices and methods according to these exemplary embodiments provide couplings or interfaces usable, for example, in the high speed balance testing of rotors are provided. A coupling includes a main body portion having an extended thin portion therein which is configured to fit a shaft of the balancing machine and an extended insert portion which is configured to fit an opening in the rotor. A plurality of connection elements is disposed in holes in the main body portion of the coupling and a ring is disposed over the extended insert and proximate exits of the holes in the main body portion. | 05-09-2013 |
20130125648 | CENTRIFUGE IMBALANCE SENSOR AND NON-CONTACT SPECIMEN CONTAINER CHARACTERIZATION - A system and method for non-contact specimen container characterization includes a processor, and a specimen container diameter sensor, and a specimen container length sensor. The non-contact specimen container can also include a cap color sensor. The sensors are located in a fixed position relative to a conveyor for transporting a plurality of specimen containers. | 05-23-2013 |
20130152679 | Wheel Balance And Force Measurement Procedure - A method for efficiently operating a vehicle wheel balancing system having a wheel mounting structure upon which a vehicle wheel assembly is mounted for rotation during a measurement or service procedure, and a load roller assembly disposed in operative proximity to the wheel mounting structure for engaging a surface of the vehicle wheel assembly and applying a controlled load there to during rotation. After mounting a vehicle wheel assembly to the mounting structure, the wheel assembly is rotationally driven and a measurement of imbalance is initially acquired and the results displayed to an operator. Subsequently, the load roller assembly is engaged with the still rotating wheel, while measurements of radial forces and/or runout of the wheel are acquired, before the wheel rotation is stopped. | 06-20-2013 |
20130333468 | Balance Test Indexing Tool for Balance-Testing a Rotor - A balance test indexing tool for use in a balance testing machine to assist a user in testing unbalance in a rotor. The tool includes a rotor mount face disposed on the rotor being tested. The rotor mount face may be machined in a surface of the rotor or provided in a separate rotor mount temporarily fixed to the rotor. The tool also includes a rotor mount receiver configured to receive the rotor mount face in the balance testing machine. The rotor mount face and rotor mount receiver are configured to provide an indexing coupling that allows the rotor to be readily indexed to any of a plurality of index positions for unbalance testing in the testing machine. The tool allows multiple balancing runs to be made with relatively little effort needed to re-index the rotor. In some embodiments the tool includes a kinematic coupling that provides highly accurate and repeatable indexing. | 12-19-2013 |
20140060181 | TIRE TESTING APPARATUS - A tire testing apparatus allows attachment and detachment of a rim assembly in which first and second rims are integrated and performs testing of a tire attached to the rim assembly. The tire testing apparatus includes a first attaching part; a second attaching part; a rotating part that rotates the first attaching part around a reference axis orthogonal to the first reference surface of the first rim attached to the first attaching part; a fixing part that fixes the first attaching part and the second attaching part to each other and is capable of releasing the fixation; an attaching portion moving part that adjusts the distance in a direction along the reference axis between the first attaching part and the second attaching part; and a rotation regulating part that regulates rotation of the second attaching part around the reference axis. | 03-06-2014 |
20140238127 | Robotic Weight Apply Station - An apparatus for processing a tire-wheel assembly comprising a single-cell workstation including a plurality of sub-stations. The plurality of sub-stations includes a weight application sub-station, and an audit balancing sub-station. The apparatus also includes a tire/wheel transporting device positioned within reach of all of the plurality of sub-stations. A method is also disclosed. | 08-28-2014 |
20140238128 | METHOD FOR DETERMINING CURRENT ECCENTRICITY OF ROTATING ROTOR AND METHOD OF DIAGNOSTICS OF ECCENTRICITY OF ROTATING ROTOR - The invention relates to a method for determining current eccentricity of rotating rotor ( | 08-28-2014 |
20140251008 | WHEEL BALANCING DEVICE - A wheel balancing device, comprising a rotation shaft on which a wheel can be mounted and elements for fixing the wheel to the rotation shaft and further comprising:
| 09-11-2014 |
20140283598 | DYNAMIC BALANCE DETECTING DEVICE - The dynamic balance detecting device includes a platform, a pillar, a main shaft, a vibration sensor, a rotation sensor, a dynamic measuring tester, and a controller. The pillar is connected to the platform. The main shaft is positioned on the pillar for driving a rotor. The vibration sensor is positioned adjacent to the main shaft for detecting vibration amount of the main shaft. The rotation sensor is positioned adjacent to the main shaft and spaced from the vibration sensor for detecting a rotation of the main shaft. The dynamic measuring tester is positioned on the platform for receiving vibration data obtained by the vibration sensor and rotation data obtained by the rotation sensor in real time to analyze and determine whether dynamic balance of the rotor achieving as required, and calculates a dynamic balance regulating amount for the rotor. | 09-25-2014 |
20150114110 | Pneumatic Wheel Clamping Apparatus for a Wheel Service Machine - An apparatus for a wheel service machine includes a body having an axis and a aperture through the axis, the aperture shaped to receive a rotary shaft, a first chamber and a second chamber located in the body, a pneumatic inlet communicated with the second chamber, the pneumatic inlet configured to be couple to a pneumatic supply line. A piston is movably disposed in the first chamber between a retracted and an extended position, the piston moving from the retracted position to the extended position when pressure from the second chamber is supplied to the first chamber. A valve is positioned between the first and second chambers, the valve selectively communicating the first and second chambers. A wheel service apparatus includes a base, a motor configured to rotate a rotary shaft, and a pneumatic nut. A docking station for the pneumatic nut can be located on the base. | 04-30-2015 |
20150128698 | PORTABLE HIGH SPEED BALANCE MACHINE - A portable machine includes a base assembly defining a vacuum chamber, the base assembly including a decking having a machine way. The portable machine also includes a machine component releasably coupled to the machine way, and a plurality of load-equalizing members coupled to the base assembly that evenly distribute and support a load positioned on the base. | 05-14-2015 |
073462000 | With electrical sensor and indicator | 42 |
20080196496 | Wheel Balancing Method and Apparatus - A method for balancing a wheel and tire assembly includes providing a wheel and tire assembly characterized by a rotational imbalance, and applying a fluid to the wheel and tire assembly thereby to correct the rotational imbalance. The use of a liquid to correct a rotational imbalance facilitates the automation of a balancing operation. Accordingly, another method is provided that includes determining a quantity of mass to be applied to a wheel and tire assembly to correct a rotational imbalance, and commanding an apparatus to dispense an amount of a fluid having the quantity of mass to be dispensed from a nozzle. A corresponding apparatus is also provided. | 08-21-2008 |
20080202236 | Method and apparatus for balancing the rotating elements of a dental handpiece - A method of balancing a set of rotating turbine elements includes measuring imbalance in the rotating elements; adding or removing material to or from at least two correction planes in the turbine set at an angular location measured during the imbalance measurement; and, if necessary, repeating said steps of measuring and removing until a predetermined balance is achieved. | 08-28-2008 |
20080271530 | Vibration State Detecting Method at Machining Stage of Work and/or Tool - A vibration state detecting method at a machining stage of a work and/or tool, includes the steps of mounting the work and/or tool on a predetermined rotational device and measuring a deviation size and/or deviation average speed corresponding to each rotational number of the work and/or tool; presetting the deviation size and/or the deviation average speed measured by using the rotational device, a vibration amplitude and/or vibration average speed when each machine tool having a work and/or tool mounted thereon is rotated, with a common unbalance amount and at a rotational speed, and proportional fixed number of both thereof; and calculating a vibration amplitude and/or vibration average speed corresponding to each number of rotations when the work and/or tool is mounted on each machine tool by using a measurement value of the deviation size and/or deviation average speed of using rotational device, and the proportional fixed number. | 11-06-2008 |
20080295595 | DYNAMICALLY BALANCED IN-LINE WHEEL VEHICLE - A family of vehicles is presented which exploit dynamic controls to stabilize in-line two wheeled vehicles. The stabilization results in improved safety at high speeds and on uncooperative surfaces. Stabilization affords balance at zero speed without auxiliary support means. Transformational wheel base length affords high visibility at low speeds and low drag at high speeds. In wheel chair configurations transforming wheel base length allows navigation up and down stairs. | 12-04-2008 |
20090158845 | METHOD AND APPARATUS FOR VERIFYING THE OPERATION OF AN ACCELEROMETER - A method of verifying the operation of an accelerometer is provided. The method includes channeling a high frequency signal through a positive lead of the accelerometer, and detecting a signal at a negative lead of the accelerometer. If the detected signal is substantially similar to the high frequency signal channeled through the positive lead, the integrity of the accelerometer is verified. | 06-25-2009 |
20090249872 | Dynamic balancing apparatus and method using linear time varying angular velocity model - Provided is a dynamic balancing apparatus using a linear time-varying angular velocity model, which includes a rotational shaft on which a rotational body having a rotating unbalanced mass is installed; a linear time-varying angular velocity generator which allow the rotational shaft to be rotated at a linear time-varying angular velocity; a support for supporting both sides of the rotational shaft; and a transducer for measuring applied force or vibration transferred to the support by revolution of the rotational shaft having a linear time-varying angular velocity. | 10-08-2009 |
20090277265 | APPPARATUS FOR MEASURING FORCES GENERATED BY AN UNBALANCE OF A VEHICLE WHEEL - An apparatus for measuring forces generated by an unbalance of a vehicle wheel, comprising a horizontally oriented measuring shaft ( | 11-12-2009 |
20090293613 | System and Method for Active Detection of Asymmetry In Rotating Structures - System and method for active detection of asymmetry in a rotating structure, the method comprises: imparting harmonic mechanical excitation on the rotating structure that is asynchronous to the speed of rotation of the structure; obtaining a response from the excited rotating body; and analyzing the response to determine a presence of modulation of the imparted harmonic mechanical excitation, that causes vibration at a frequency that is a combination of both the harmonic mechanical excitation and the modulation speed of rotation. | 12-03-2009 |
20090308156 | TIRE TESTING MACHINE AND TIRE TESTING METHOD - A tire testing machine according to the present invention, which can measure both uniformity and dynamic balance of a tire T, comprises a spindle for driving the tire T to rotate about a vertical axis, a spindle housing which supports the spindle rotatably, and a rotating drum rotatable about an axis parallel to an axis of the spindle and movable toward and away from the tire T. The spindle housing is fixed to a base through a piezoelectric sensor so that it can bear a pressing force provided from the rotating drum. The piezoelectric sensor is disposed within a plane including the axis of the spindle and perpendicular to the pressing force. With this structure, dynamic balance of the tire can be measured accurately and easily. | 12-17-2009 |
20100043545 | BALANCING MACHINE FOR RATATING BODIES, PARTICULARLY FOR MOTOR VEHICLE WHEELS - A balancing machine for rotating bodies, particularly for wheels of motor vehicles and the like, comprising a rotating shaft supported by a supporting element which is connected rigidly to the frame of the balancing machine, at least one first measurement transducer and one second measurement transducer being coupled elastically, along perpendicular planes, to an extension of the supporting element, an actuation motor being connected to the rotating shaft by means of a belt, said actuation motor being connected on an extension of the supporting element, said extension connecting the rotating shaft to the measurement transducers. | 02-25-2010 |
20100071464 | Balancing machine for balancing vehicle wheels - The balancing machine for balancing vehicle wheels comprises a supporting structure of grip and rotation means for gripping and rotating a wheel to be balanced, detection means for detecting the unbalance of the wheel during rotation, a processing unit which is operatively associated to said grip and rotation means and to said detection means, a screen associated to the supporting structure which is operatively associated to the processing unit and adapted to display the detected unbalance data and selectable functions or lists of functions, a control panel for the selection of the functions or lists of functions having a touch-screen control surface, and control means for controlling the operation of the control surface between a continuous operating mode, in which the touching of the control surface between two positions leads to scrolling between the functions or lists of functions, and a discrete operating mode, in which on the control surface is determined at least a discrete portion and the touching of the discrete portion leads to the selection of one of the functions or lists of functions. | 03-25-2010 |
20100107757 | Machine for balancing vehicle wheels - The machine for balancing vehicle wheels comprises a base frame supporting a substantially horizontal balancing spindle, a lifting device for lifting a vehicle wheel to be fitted/removed to/from the balancing spindle, contact-free reading means of the profile of the tire associated with the base frame, and a processing and control unit operatively associated with the lifting device and with the reading means and suitable for calculating the position of the center of the wheel in accordance with the values read by the reading means, and for stopping the lifting device in an end-of-lifting position, in which the wheel center is substantially at the same height as the balancing spindle. | 05-06-2010 |
20100139396 | Balancing machine for balancing vehicle wheels - The balancing machine for balancing vehicle wheels comprises a supporting structure for supporting grip and rotation means for gripping and rotating a wheel to be balanced, detection means for detecting the unbalance of the wheel during rotation, a processing unit which is operatively associated to the grip and rotation means and to the detection means, and interface means associated to the supporting structure and operatively associated to the processing unit. The interface means comprise a support associated to the supporting structure, a screen housed internally of a first housing on the support and a keyboard housed internally of a second housing on the support. | 06-10-2010 |
20100139397 | APPARATUS FOR MEASURING UNBALANCE FORCES - Apparatus for measuring forces which are produced by an unbalance of a rotary member | 06-10-2010 |
20100218603 | SHAFT BALANCING SYSTEM AND METHODS - A shaft assembly has a shaft body, a first universal joint coupled to a first end of the shaft body, and a second universal joint coupled to a second end of the shaft body. A method for dynamically balancing the shaft assembly includes rotating the shaft assembly at a predetermined speed, determining a level of imbalance of the shaft assembly while rotating the shaft assembly at the predetermined speed, iteratively adjusting the position of the shaft body with respect to the first and second universal joints in response to the level of imbalance to determine an optimal level of imbalance while rotating the shaft assembly, and securely positioning the first and second universal joints with respect to the shaft body. | 09-02-2010 |
20110023599 | ELECTROMAGNETIC DISC DRIVE WHEEL BALANCER - A device to balance a disc, comprising a shaft disposed for rotation about an axis having one end adapted to coaxially receive the disc and an opposite end including rotor structure stator structure to magnetically drive the rotor structure, shaft and disc about the axis; and structure for determining imbalance in the disc. | 02-03-2011 |
20110067493 | Method for the automatic detection and identification of errors in a balancing machine - A method is disclosed for the automatic detection and identification of errors in a balancing machine during operation, in which a rotor provided with an unbalance is rotatably mounted in a vibratory bearing in the balancing machine and is set in rotation by a drive, the rotational frequency of the rotating rotor and the vibrations stimulated by the rotor are measured and measurement signals which comprise the measured values of the rotational frequency and the vibrations are generated and delivered to an evaluation computer. The evaluation calculation is based on mathematical models of the dynamic properties of the balancing machine which describe stimulations of the machine structure due to the unbalance, in particular in the balancing planes, and/or due to the rotor geometry and/or due to the bearing and/or possible damage to the bearing. Features such as vibration characteristics and/or process parameters are calculated by a signal-model-based method from the measurement signals, and discrepancies are established by comparing the calculated features with predetermined normal features of an error-free process. | 03-24-2011 |
20110126620 | SELF-ALIGNING LASER GUIDE FOR A WHEEL BALANCER - A self-aligning laser guide device capable of indicating a top dead-center of a wheel on a wheel balancer and a process for locating the top dead-center of the wheel. The self-aligning laser guide can include a body having a laser beam generating device and a wheel balancer shaft mounting adaptor configured to be rotatably connected to the body at one end and configured to be removably connected to a wheel balancer shaft at the other end. | 06-02-2011 |
20110239761 | RUNOUT MEASUREMENT FOR DEVICES HAVING A ROTATING BODY - A runout measurement system is proposed for measuring the runout of a moving surface of a device having a rotating body, such as a mass storage device ( | 10-06-2011 |
20120042724 | Method and device for checking the tire seat on vehicle wheels - In order to check the seat of a tubeless tire ( | 02-23-2012 |
20120067121 | EDDY-CURRENT ACUTATED BALANCER FOR ROTATING MACHINERY - An eddy-current actuated balancer includes a barrel having a locating wall at one end thereof; two balancing wheels mounted around the barrel and carrying a respective counterweight at the border, a washer set between the balancing wheels, an elastic ring and a lock ring and a pulsed magnetic field generator mounted on each balancing wheel. The balancing wheels, the washer and the elastic ring are clamped between the locating wall of the barrel and the lock ring. Each pulsed magnetic field generator is controlled to generate a pulsed magnetic field acting upon the associating balancing wheel during its rotation for inducing an eddy current that causes the associating balancing wheel to make an angular displacement relative to the barrel for balance adjustment. | 03-22-2012 |
20120240677 | DEVICE FOR MEASURING FORCES GENERATED BY AN UNBALANCE - A device for measuring forces generated by an unbalance of a rotor, said device comprising a stationary frame, a first bearing, measuring shaft mounted rotatably about its shaft axis in the first bearing, a mounting means provided on the measuring shaft designed for attachment of the rotor, wherein the rotor is designed to be balanced in at least one compensating plane, a second bearing pivotally supporting the first bearing about a pivot axis which intersects the shaft axis and being supported on the stationary frame, a first force sensor for measuring forces generated by the unbalance of the rotating rotor and acting about the pivot axis, and a second force sensor for measuring forces generated by the unbalance of the rotating rotor and acting on the measuring shaft and on the second bearing in a direction intersecting the shaft axis. | 09-27-2012 |
20120272730 | SYSTEMS AND METHODS FOR AN ENCODER AND CONTROL SCHEME - Systems and methods for an encoder and control scheme are provided. In one embodiment, a micro-electromechanical system (MEMS) device comprises: a stator having a first marker and a second marker arranged on a surface of the stator to form a sensing pattern; a sweeping element that dithers in a plane parallel to the surface of the stator along a sweep path that crosses the first marker and a second marker; an overlap sense circuit operable to measure an area overlap between the sweeping element and the sensing pattern, wherein the overlap sense circuit generates a pulse train signal output that varies as a function of the area overlap. | 11-01-2012 |
20130008249 | WHEEL BALANCER WITH MEANS FOR DETERMINING TYRE UNIFORMITY - The present invention relates to a wheel balancer which comprises a stationary frame, a measuring shaft mounted rotatably about its shaft axis on the stationary frame and adapted to receive coaxially a rim/tyre assembly. The invention further comprises encoder means for determining the angular positions of the measuring shaft or of the rim/tyre assembly, load means to apply a load to the periphery of the rim/tyre assembly, measuring means to measure forces resulting from an unbalance of the rotating rim/tyre assembly, measuring means to measure forces acting between the load means and the periphery of the rim/tyre assembly and locking means to keep the distance between the shaft axis and a contact portion at which the periphery of the rim/tyre assembly contacts the load means constant during the measurement of the forces acting between the load means and the periphery of the rim/tyre assembly. | 01-10-2013 |
20130014580 | Bicycle wheel balance machineAANM Lin; Chang HuiAACI Chang Hua HsienAACO TWAAGP Lin; Chang Hui Chang Hua Hsien TW - A bicycle wheel balance machine includes a base having two spaced arms for engaging with a bicycle wheel, a casing slidably engaged in one of the arms and having a center member movable to engage with a wheel hub with an anchoring device, a spindle rotatably engaged in the other arm and engaged with the wheel hub, a motor coupled to the spindle for rotating the spindle and the bicycle wheel, two sensors attached to the arms for sensing conditions of the bicycle wheel, and the bicycle wheel balance machine includes a simplified structure to be easily operated by the users themselves at home. | 01-17-2013 |
20130081461 | DEVICE AND METHOD FOR DAMPING THE IMBALANCE OF A ROTATING PART AND DISHWASHING MACHINE WITH SUCH A DEVICE - A device and a method for damping the imbalance of a rotating part are described, comprising a means for determining at least one parameter of the imbalance during a rotational movement of the part and a means for influencing the axis of rotation of the rotating part in such a manner that the axis of rotation coincides with the axis of inertia of the part, wherein at least one parameter is supplied as an input quantity to the means for influencing to bring about a dynamic variation of the axis of rotation with respect to the axis of inertia of the rotating part. | 04-04-2013 |
20130145846 | Method of Balancing Tires - A method of balancing tires on a wheel for passenger vehicles, trucks, and the like includes positioning one or more balancing weights in a groove in the tire tread. A novel weight that locks within the groove is also described. | 06-13-2013 |
20130174658 | IMBALANCE CORRECTION METHOD AND IMBALANCE CORRECTION AMOUNT CALCULATION DEVICE FOR ROTOR - An imbalance correction method for correcting the imbalance of a rotor measures the vibration state of the rotor before temporary correction and the vibration state of the rotor after the temporary correction in a plurality of rotational speeds in order to make vibration values below the standard. An aggregation range of the tips of correction vectors for obtaining a vibration value which satisfies a vibration standard is calculated from vibration vectors in the rotational speeds. A real correction vector is selected from correction vectors having the tips in a region in which the aggregation ranges calculated for each of the rotational speeds overlap one another among a plurality of the correction vectors. A real correction amount and a real correction phase are set based on the real correction vector. The imbalance of the rotor is corrected based on the real correction amount and the real correction phase. | 07-11-2013 |
20130186199 | SYSTEM AND METHOD FOR DETECTING IMBALANCE IN A WASHING MACHINE - Systems and methods for detecting an out of balance condition for a washing machine are disclosed. The wash basket of the washing machine is rotated at a constant predetermined rotational speed. If the washing machine has an unbalanced load, the wash tub will strike the cabinet as the basket rotates in the wash tub. The tub strikes cause the wash basket to lose momentum. The inverter drive control system causes the inverter to provide more current through the motor phases to the motor to maintain constant speed. From the value of the current, the severity of the tub strikes during a test period can be determined. An out of balance condition can be detected and measured based at least in part on the severity of the tub strikes. | 07-25-2013 |
20130263659 | PASSIVE DYNAMIC INERTIAL ROTOR BALANCE SYSTEM FOR TURBOMACHINERY - A passive dynamic inertial rotor balance system including a plurality of balancing members fitted onto a rotor shaft at locations of predicted maximum shaft modal deflection. Each of the balancing members has at least one chamber and located within the at least one chamber is a plurality of movable weights and a viscous fluid. As the shaft accelerates toward an unbalance point, the weights move within the at least one chamber to a location which is opposite from the unbalance point. The viscous fluid provides damping for the movable weights to prevent excess movement within the chamber and to provide lubrication thereof. A system for self-correcting an unbalance of a turbomachinery rotor during rotation of the rotor and a method for balancing a rotor in a turbomachinery is also provided. | 10-10-2013 |
20130312515 | MULTIPLE SPEED DYNAMIC SHAFT BALANCING - A method of dynamically balancing a shaft for multiple rotational speeds comprising: rotating the shaft in the balancer at a first rotational speed while measuring a first force and a first angle of a first shaft imbalance measurement; rotating the shaft at a predetermined second rotational speed while measuring a second force and a second angle of a second shaft imbalance measurement; comparing the first shaft imbalance measurement to a first predetermined imbalance specification and comparing the second shaft imbalance measurement to a second predetermined imbalance specification; if the first shaft imbalance does not meet the first predetermined imbalance specification or the second shaft imbalance does not meet the second predetermined imbalance specification, then calculating a composite correction based on the first and second shaft imbalance measurements; and applying a first weight to the shaft at a correction first angle based on the calculated composite correction. | 11-28-2013 |
20130340521 | ROTOR BALANCING METHOD - A method of balancing a physical rotor includes: determining a first balance state of the physical rotor at one or more rotational frequencies; identifying one or more balance zones on a surface of the rotor; providing a computerised simulation of the rotor having the first balance state; providing a first test mass in a first test location within one of the balance zones on the rotor simulation; determining a second balance state of the rotor simulation; providing at least one subsequent test mass in at least one subsequent test location within a balance zone on the rotor simulation and determining at least one subsequent balance state of the rotor simulation; selecting a mass and location from one of the first and subsequent test masses and test locations; and performing a material deposition process to add the selected mass of material to the selected location on the physical rotor. | 12-26-2013 |
20140000363 | Method and Apparatus For Measuring Tire Rolling Resistance | 01-02-2014 |
20140013842 | Driving An Active Vibration Balancer To Minimize Vibrations At The Fundamental And Harmonic Frequencies - Vibrations of a principal machine are reduced at the fundamental and harmonic frequencies by driving the drive motor of an active balancer with balancing signals at the fundamental and selected harmonics. Vibrations are sensed to provide a signal representing the mechanical vibrations. A balancing signal generator for the fundamental and for each selected harmonic processes the sensed vibration signal with adaptive filter algorithms of adaptive filters for each frequency to generate a balancing signal for each frequency. Reference inputs for each frequency are applied to the adaptive filter algorithms of each balancing signal generator at the frequency assigned to the generator. The harmonic balancing signals for all of the frequencies are summed and applied to drive the drive motor. The harmonic balancing signals drive the drive motor with a drive voltage component in opposition to the vibration at each frequency. | 01-16-2014 |
20140060182 | BALANCING MACHINE FOR BALANCING VEHICLE WHEELS - Machine for balancing vehicle wheels includes:
| 03-06-2014 |
20140109672 | Laboratory Apparatus Comprising a Sensor for Detecting Vibrations - The invention relates to a laboratory apparatus ( | 04-24-2014 |
20140157895 | METHOD OF DETERMINING ROTARY ANGLE RELATED DATA OF A VEHICLE WHEEL - A method and an apparatus for determining rotary angle related measurement data of a body mounted rotatable about an axis of rotation, the body being a vehicle wheel or a part of a vehicle wheel, in particular a tyre or a rim, the method comprising the steps of obtaining measurement data comprising a plurality of measurement data elements of the rotating body together with respective measuring times, determining at least one rotational speed or revolution period of the body for at least one point in time, and associating the obtained measurement data elements to respective rotary angles of the body based on the respective measuring times and the at least one rotational speed or revolution period of the body. | 06-12-2014 |
20140165721 | Method and Apparatus For Detection Of Wheel Assembly Slippage On A Vehicle Wheel Balancer - A vehicle wheel balancer system having a processing system and a spindle shaft upon which a vehicle wheel assembly is mounted for measurement of imbalance characteristics and forces. The processing system is configured with software instructions to evaluate the remaining imbalance present in a vehicle wheel assembly following the application of imbalance correction weights, and to determine if the remaining imbalance is the result of the vehicle wheel assembly having deviated from an expected rotational position during the time between the measurement of the imbalance and the application of the imbalance correction weights. In the event of such a deviation, the processing system is further configured to provide the operator with a suitable warning to evaluate and correct the mounting of the vehicle wheel assembly before proceeding to rebalance or re-measure the vehicle wheel assembly. | 06-19-2014 |
20150013453 | Balancing Device, Uniformity Device and Methods for Utilizing the Same - A balancing device, a uniformity device and an apparatus including the balancing device and the uniformity device are disclosed. Each of the balancing device and the uniformity device includes at least one multi-axis transducer. Methods are also disclosed. | 01-15-2015 |
20150047432 | IMBALANCE MEASUREMENT MACHINE - An imbalance measurement machine for determining tire imbalance has a hollow shaft rotatably driven relative to a fixed hollow axle. A tubular air feed for filling the tire with air is centered within and rotates with the shaft to rotate the tire for determining imbalance. An air hose is connected to a rotational coupling disposed at an air feed end that faces away from the tire. Force transducers between the axle and a machine bed measure forces that occur there during operation. The air hose is attached not only to the rotational coupling but also to the axle, at a distance from the rotational coupling. An alternative embodiment omits the rotational coupling and fills the tire in the resting state of the shaft, via the air hose and the non-rotating air feed. Subsequently, the air hose is separated from the air feed, and the tire retains the supplied air. | 02-19-2015 |
20160084727 | APPARATUS AND METHOD FOR DYNAMICALLY BALANCING ROTORS - A rotor is statically or dynamically balanced by driving the rotor to rotate at a desired speed, measuring an imbalance in the rotor, calculating an adjustment to be made in a mass distribution of the rotor based on the measured imbalance, and adjusting the mass distribution to reduce the imbalance. Mass adjustment is done by operating a laser to ablate material from the rotor according to operating parameters based on the adjustment calculated. The foregoing is done while the rotor is rotating. | 03-24-2016 |
073466000 | Stroboscopically illuminated | 1 |
20100139398 | Illumination devices for balancing machine for balancing vehicle wheels - The balancing machine for balancing vehicle wheels comprises a base frame supporting a balancing shaft for balancing a vehicle wheel and illumination means for illuminating the wheel which comprise a plurality of light sources arranged substantially around the balancing shaft. | 06-10-2010 |
073468000 | With counterbalancing means | 15 |
20080302181 | Balance Ring and Method For Balancing a Rotating Component - A balance ring for a component ( | 12-11-2008 |
20100064801 | METHOD FOR BALANCING SUPERCRITICAL SHAFTS - Gas turbines are used for power generation with units in a range of sizes. They serve as power plants for both military and commercial aircraft. Demand is for faster, lighter engines, utilizing more advanced manufacturing processes. One of the means of meeting this goal is through use of longer, thinner, more flexible shafts which operate supercritically. Supercritical operation was once viewed as impractical, however, a number of today's production gas turbines operate in this mode. The shaft manufacturing process is optimal if the shaft balance procedure can be conducted at low speeds, rather than requiring a more expensive and complicated high speed balance process. One embodiment of the present invention includes a systematic process for a low speed balance procedure which, would permits a high speed shaft system to transition through additional critical speeds and operate safely above them. Still other embodiments of the present invention pertain to analytical modeling and analysis of representative shaft systems to determine the optimum locations of the balance planes and an approach for predicting shaft responses. | 03-18-2010 |
20110226055 | Method and device for feeding and attaching corrective elements for unbalance correction, in particular in a balancing machine - Disclosed is a device for feeding and attaching corrective elements for unbalance correction on propeller shafts in a balancing machine, which includes an attachment device adapted to be positioned longitudinally to the rotor axis, with a receptacle for receiving a corrective element attachable to the outer circumference of the rotor. Associated with the balancing machine is a supply unit supplying corrective elements measured for the individual unbalance correction. A feeding device is provided which feeds supplied corrective elements to the attachment device, said feeding device including a transfer shuttle capable of performing reciprocating movements between the supply unit and the attachment device on a guideway parallel to the rotor axis by means of a controllable motion drive mechanism. The transfer shuttle includes a loading device configured for performing an active loading operation by displacing a corrective element from a receptacle of the transfer shuttle into the receptacle of the attachment device, said loading device being driven by means of the controllable motion drive mechanism of the transfer shuttle. | 09-22-2011 |
20110283790 | Weight Material Dispensing, Cutting, And Applying System - An apparatus for balancing a wheel includes a tool and an arm control module. The tool is mechanically coupled to an arm and includes a leading edge, a trailing edge, and a face surface that forms an arc between the leading and trailing edges. The arm control module actuates the arm to position the leading edge of the tool a predetermined distance from an edge of a deck of a cutting apparatus to receive a piece of non-segmented wheel weight material. A blade of a cutting apparatus passes between the edge of the deck and the leading edge of the tool to cut the piece from the non-segmented wheel weight material. | 11-24-2011 |
20150090032 | Weight Material Dispensing, Cutting and Applying System - An apparatus for balancing a wheel includes a tool and an arm control module. The tool is mechanically coupled to an arm and includes a leading edge, a trailing edge, and a face surface that forms an arc between the leading and trailing edges. The arm control module actuates the arm to position the leading edge of the tool a predetermined distance from an edge of a deck of a cutting apparatus to receive a piece of non-segmented wheel weight material. A blade of a cutting apparatus passes between the edge of the deck and the leading edge of the tool to cut the piece from the non-segmented wheel weight material. | 04-02-2015 |
20150323410 | Balancing Weight Application System - A device for the application of balancing weights to the rim of a vehicle wheel comprises a program controlled manipulator device with a balancing weight application head. The application head is configured to first pick up a balancing weight from a dispenser and then to be transported by the manipulator device to the rim, where the application head can apply the balancing weight to the rim. | 11-12-2015 |
20150345294 | METHOD OF BALANCING A SPOOL OF A GAS TURBINE ENGINE - A method of balancing a spool of a gas turbine engine, the spool including a forward rotor assembly and an aft rotor assembly separated by a spacer, the method comprising: balancing the forward rotor assembly and the aft rotor assembly independently from one another using conventional balancing techniques; and mathematically modeling the spool; applying a modeled axial load to the modeled spool to determine a trim weight which would balance the spool when subjected to the modeled axial load; and physically placing the trim weight to one of the forward rotor assembly and the aft rotor assembly. | 12-03-2015 |
20150362396 | METHOD AND APPARATUS FOR TURBINE ENGINE ROTOR AUTOMATIC SELF BALANCING - An online real time steam or gas turbine engine rotor balancing system is incorporated in a rotor balance plane. A selectively displaceable balancing weight is coupled to the rotor and is selectively displaced by a motor that is coupled to the balancing weight. The motor selectively displaces the balancing weight along a displacement path that is in the balance plane. A turbine engine rotor vibration monitoring system monitors rotor vibration in real-time. A control system is coupled to rotor vibration monitoring system and the motor, for determining in real time a desired balance weight displacement position to counteract the monitored rotor vibration. The controller selectively causes the motor to displace the balancing weight to the desired displacement position. The motor power source is an inductive power source or a permanent magnet generator. | 12-17-2015 |
20160146693 | Apparatus For Driving A Rotor - A mounting apparatus for a rotor, including: a first portion for connection to a driving means, for rotation about a first rotational axis; a second portion comprising a mounting assembly adapted for engaging with a portion of the rotor so as to hold the rotor relative thereto, configured for rotation about a second rotational axis; and a connection member connecting the first portion to the second portion so that rotational movement of the first portion effects rotational movement of the second portion about the second rotational axis, wherein the connection member is configured substantially to prevent radial movement of the second portion relative to the first portion, while enabling inclination of the first rotational axis relative to the second rotational axis. | 05-26-2016 |
073470000 | By circumferentially adjustable weights | 6 |
20090031802 | ROTOR ALIGNMENT SYSTEM AND METHOD - Disclosed herein is a rotor to stator alignment method. The alignment method includes, positioning a plurality of eccentric rings between the rotor and a stator, and rotating at least one of the plurality of eccentric rings relative to the stator thereby reducing eccentricity of the rotor with the stator. | 02-05-2009 |
20100005883 | METHOD AND A MACHINE FOR BALANCING VEHICLE WHEELS - A method and a machine for balancing vehicle wheels with weights ( | 01-14-2010 |
20100058859 | METHOD AND DEVICE FOR COMPENSATING UNBALANCES OF VEHICLE WHEELS - The invention relates to a method and an apparatus for the unbalance compensation of vehicle wheels in which adhesive weight elements ( | 03-11-2010 |
20110197672 | Method and device for unbalance correction on a vehicle wheel - Disclosed is a method for correcting an unbalance on a vehicle wheel including a rim and a tire, which includes measuring the unbalance of the vehicle wheel in an unbalance measuring station, rotating the vehicle wheel in the unbalance measuring station into a defined angular position and transmitting the defined angular position and the correction data to a control device for controlling an applicator head of a balancing station, transferring the vehicle wheel from the unbalance measuring station to the balancing station by means of a gripper arranged on a handling device and centrally locating and holding it in the balancing station, loading a corrective element which has one side coated with an adhesive and exhibits the weight amount determined in the unbalance measuring station into the applicator head of the balancing station, and rotating the vehicle wheel and/or the applicator head in dependence upon the control device in such a way that the corrective element in the cavity of the wheel rim reaches the correction plane and the attachment location on the attachment surface, and fastening the corrective element by pressing its adhesive-coated side against the attachment surface of the rim. | 08-18-2011 |
20150027225 | DEVICE FOR THE ATTACHMENT OF CORRECTION WEIGHTS FOR UNBALANCE CORRECTION - Disclosed is a device for the attachment of correction weights for unbalance correction to a rotary body, comprising a supply unit ( | 01-29-2015 |
20160047705 | METHOD FOR BALANCING A PROPSHAFT ASSEMBLY - Methods for correcting a rotational imbalance of a shaft are disclosed. The methods include determining a rotational imbalance of an unbalanced shaft, determining an imbalance correction and mapping the imbalance correction to predetermined points on the shaft. The imbalance correction can be implemented through the addition of mass to or the subtraction of mass from the shaft. | 02-18-2016 |
073471000 | With vibratable mount feature | 3 |
20080289416 | Method and Device for Dynamically Measuring the Unbalance of a Rotor - Dynamically measuring the unbalance of a rotor arranged in a device housing ( | 11-27-2008 |
20110067494 | REFERENCE VIBRATOR - A reference vibrator | 03-24-2011 |
20190145845 | DYNAMIC BALANCE TESTING DEVICE | 05-16-2019 |