Trouble preindicating device for hydraulic system |
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| 申请号 | JP5820682 | 申请日 | 1982-04-09 | 公开(公告)号 | JPS58193914A | 公开(公告)日 | 1983-11-11 |
| 申请人 | Hitachi Constr Mach Co Ltd; | 发明人 | ICHIYAMA SHIYUUICHI; | ||||
| 摘要 | PURPOSE: To enable the trouble in a hydraulic system to be preindicated by a method wherein a control under a micro computer is performed in response to an input of striking pressure and a stored number of repetition caused by a hydraulic sensor device. CONSTITUTION: A hydraulic cylinder 2 is operated under hydraulic oil fed from a hydraulic pump 1. At this time, a direction change-over valve 3 for driving the hydraulic cylinder 2 in any direction at any speed is arranged. In a hydraulic pipe 5 is installed a pressure sensing device 6 and then the striking pressure sensed by the sensor device and the number of repetition of striking operation are fed to a control device 7. The result processed by this control device 7 is displayed in a display device 8, so that a degree of utilization of the hydraulic system can be acknowledged and a preindication of the trouble can be performed. COPYRIGHT: (C)1983,JPO&Japio |
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