20140319259 | STRUCTURE OF CRUSHER - A crusher includes a main body that includes a crushing structure and an adjustment structure. The adjustment structure includes an adjustment hydraulic cylinder, a slide block mechanism, which is operatively coupled to the adjustment hydraulic cylinder, and a pull bar hydraulic cylinder, which is operable in combination with the adjustment hydraulic cylinder and the slide block mechanism. The adjustment structure includes an operation control module for adjusting a crushing gap and effecting position returning after an operation problem is removed. With such an arrangement, in operation, the operation control module issues a command to actuate the adjustment hydraulic cylinder for adjusting a crushing gap of the crushing structure. When an excessively high pressure occurs due to jamming, coordination between the adjustment hydraulic cylinder and the operation control module enables fast expansion of the gap to the maximum for removing a jamming object and automatic returning to the initial gap setting. | 10-30-2014 |