| 摘要 |
PURPOSE:To permit the exact foresee of disorder of a construction machine by providing a means to grasp the presence and degree of damage to each constitutent part of a rotary type oil-pressure device. CONSTITUTION:Vibration detectors 6-10 to detect vibration in the operation of a rotary type oil-pressure devices 2-5, vibration separators 11-14 to separate the vibration of the constituent parts of the oil-pressure devices 2-5 from the output of the vibration detectors 6-10, decision devices 15, 16 and 21 to judge the degree of the disorder of at least one of the constituent parts of the oil- pressure devices 2-5 from vibration separated by the vibration separators 11- 14, display comand devices 17-20 to output display signals when the operating time of the construction machine is calculated and the calculated value reaches a given value, and displayers 22 and 23 to display the degree of disorder when display command signals are input are provided. By this, since the presence and degree of damage to each constituent part of an oil-pressure device can be detected, the time to exchange oil-pressure devices 2-5 can be easily decided. |
