| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073162000 | TOOTHED GEAR | 11 |
| 20090019927 | Gear pair evaluation apparatus, gear pair evaluation program, and gear pair whose tooth surfaces are evaluated using the apparatus and program - There is provided a gear pair evaluation apparatus capable of performing accurate tooth surface analysis based on actual tooth surface measurement information without using information about a reference tooth surface. A processing unit | 01-22-2009 |
| 20100162808 | MONITORING THE STRUCTURAL HEALTH OF COMPONENTS - The present invention relates to a system for monitoring the health of mechanical and structure components of a machine. For example, the present invention is capable of monitoring the operational integrity of critical components of critical components of an aircraft such as the gearbox of a helicopter. The present invention is based on the principle of detecting a traceable substance when the substance is released from the component being monitored in the event of predetermined condition being satisfied, such as exceeding the operational temperature of the component, or a fault in the component occurring, such as a crack being formed. | 07-01-2010 |
| 20120073364 | SIDEBAND ENERGY RATIO METHOD FOR GEAR MESH FAULT DETECTION - Disclosed is a method for assessing deterioration in a gearbox. Data is obtained from an operating gearbox regarding harmonic frequencies and their related sidebands generated as a consequence of the gearbox operation. In a first embodiment, a Sideband Energy Ratio (SER) is calculated by dividing the amplitude of the sum of sideband signals associated with a harmonic to the amplitude of the harmonic. In a second embodiment, a SER is calculated based on sideband amplitudes associated with adjacent harmonics. The ratio may be monitored over time or compared to one or more values to provide an indication of deterioration. | 03-29-2012 |
| 20120247199 | GEAR MEASURING METHOD - A gear measuring method allows multi-point continuous measurement using a touch probe and is capable of reducing measuring time compared with known methods. For example, a base action for moving a sensing element of a touch probe along an ideal tooth form line of a workpiece (gear; W) or a tooth form line determined by calculation by controlling the movement of the sensing element and the rotation of the workpiece (W) and, in addition, an oscillation action for receiving first signals (ON signals or OFF signals) from the touch probe by bringing the sensing element into contact with the tooth surface of the workpiece during the base action and subsequently for receiving second signals (OFF signals or ON signals) from the touch probe by moving the touch probe in a direction along which the sensing element is separated from the tooth surface of the workpiece are continuously performed. | 10-04-2012 |
| 20130019674 | Method and Apparatus for Determining Quality of a Gearing System - A method and an apparatus for determining the quality of a gearing system is described. The method includes the steps of setting a sequence of target angles of rotation of a first gear wheel, measuring for each of the target angles of rotation an output angle of rotation of a second gear wheel, and calculating a plurality of theoretical output angles of rotation. The method also includes obtaining angle of rotation differences between the plurality of output angles of rotation and the plurality of theoretical output angles of rotation, forming a sequence of cumulative values, and determining, based on the sequence, a first amplitude value, a second amplitude value or a third amplitude value. | 01-24-2013 |
| 20130312512 | METHOD FOR DYNAMICALLY CHECKING THE TEETH OF A PART AND CHECKING DEVICE USING SAID METHOD - A method and device ( | 11-28-2013 |
| 20150013449 | GEAR INSPECTION APPARATUS - A gear inspection apparatus includes a distance measurement device, a value search part, a difference calculation part, a selecting part, a judgment value determination part, and a judgment part that are connected together in the named order. A raw waveform obtained by the distance measurement device is converted by the value search part into a rectangular waveform of maximum value and a rectangular waveform of minimum value for each prescribed number of gear teeth, and a difference between the maximum value and the minimum value is calculated by the difference calculation part. The difference is converted into a nick determination value by the judgment value determination part, and the presence or absence of a nick is determined by the judgment part. | 01-15-2015 |
| 20150135820 | APPARATUS FOR THE LAPPING OR TESTING OF GEARS - An apparatus including a first spindle group for chucking a first gear, whereby the first gear is mountable on the first spindle group so that it is rotatable, and a second spindle group for chucking a second gear, whereby the second gear is mountable on the second spindle group so that it is rotatable. The apparatus further defining a first linear axis oriented to perform a first linear displacement of the first spindle group relative to the second spindle group; a second linear axis oriented to perform a second linear displacement of the first spindle group relative to the second spindle group; and at least one of a swivel axis oriented to perform pivoting of the first spindle group thereabout, and a swivel axis oriented to perform pivoting of the second spindle group thereabout. | 05-21-2015 |
| 20150143890 | METHOD AND TOOL FOR CHECKING ALIGNMENT BETWEEN GEARS - The present disclosure relates to a method of checking an alignment between a first gear and a second gear using a tool is provided. The tool includes a base portion defining a longitudinal axis and an elongate portion extending from the base portion along a transverse axis perpendicular to the longitudinal axis. Further, the second gear is received in an inner bore of the first gear. The method includes inserting at least partially the base portion of the tool within an inner bore of the second gear. The method also includes inserting a first pin extending from the elongate portion within a space between adjacent teeth of the first gear. The method further includes determining that the first gear is aligned with the second gear if a second pin extending from the elongate portion is received within a space between adjacent teeth of the second gear. | 05-28-2015 |
| 20150338309 | METHOD AND APPARATUS FOR INSPECTING CLUSTER GEARS - A method and apparatus for measuring cluster gears for run-out employs a plurality of master gears, each engageable with one of the gears of the cluster and each supported on a fluid cylinder powered slide movable radially to a gear to be measured. As the gear to be measured is rotated, the radial motion of the slides is sensed and compared to maximum values by a computer. An additional master gear, having sections engageable with each gear of a cluster simultaneously on its own slide, may be provided to measure the total run-out of the cluster. | 11-26-2015 |
| 20150369696 | DEVICE FOR MECHANICALLY TESTING A PINION BETWEEN AN INTERNAL TOOTHSET AND AN EXTERNAL TOOTHSET AND/OR BETWEEN TWO EXTERNAL TOOTHSETS AT AN ADJUSTABLE ANGLE - Mechanical test device including: an internal gear with internal teeth, configured to engage a pinion to be tested, the axis of the gear being fixed relative to the axis of the pinion to be tested; an internal gear support on which the gear is installed, a central movement transmission element configured to have a rotation movement about an axis fixed relative to the axis of the provided; a pinion to drive the gear, configured to engage the teeth of the gear; a mobile support on which the gear drive pinion is fixed; a support for the pinion to be tested, fixed relative to the support; and-an apparatus for putting the mobile support in rotation about the axis of the gear while the assembly composed of the pinion to be tested the gear the central transmission element and the pinion driving the gear is put into movement. | 12-24-2015 |
