Door machine commonly used hydraulic plunger stopper. Directly related to the reliability of the brake and set personal safety, so its reliability requirements are particularly high. However, there is a hydraulic putt put into use more brake failure, fault phenomenon are:
Rope hoist motor shaft and the impeller shaft loose coupling between the square after the fall, the hydraulic cylinder idling motor shaft does not move.
(2) The hydraulic brake loose putter putter bending deformation, loose brake is not working place.
(3) Hydraulic brake rod spring break, the brake can not be closed.
(4) The brake frameworks, card live hinge, opening and closing of the brake, slow, or does not operate.
rope hoist brake framework activities hinge point bolt loose, brake work is not in place;
(6) brake band, brake wheel badly worn, or loss of braking torque decreases the braking torque.
(7) Hydraulic brake push rod loose the drive motor phase failure, motor and brake release unit does not operate.
Wire rope hoist failure led directly to door lifting mechanism, reduce the reliability of luffing mechanism, especially down the process and increase process Zhidongshiling, seriously endangers the safety, so to improve hoisting mechanism, luffing mechanism brakes Reliability has always been our
Hoist equipment device management and technology research focus.