Jiaozuo brake

Hydraulic push rod brakes are commonly used on port gantry cranes. The reliability of the brake is directly related to the safety of personnel and equipment, so the requirements for its reliability are particularly high. However, there are currently many hydraulic push rod brakes that have been put into use, with the main symptoms being: (1) the square coupling between the motor shaft and the impeller shaft loosens and falls off, causing the motor shaft to spin while the hydraulic cylinder does not operate. (2) The push rod of the hydraulic push rod brake release device is bent and deformed, and the brake release device is not working properly. (3) The hydraulic push rod brake spring is broken and the brake cannot be closed. (4) The movable hinge point of the brake frame is stuck, and the opening and closing actions of the brake are slow or not moving. (5) The movable hinge pin of the brake frame is loose, and the brake does not work properly; (6) Brake bands and wheels are severely worn, resulting in reduced or lost braking torque. (7) The drive motor of the hydraulic push rod brake release device is out of phase, and the motor and brake release device do not operate. The above faults directly lead to a decrease in the reliability of the lifting mechanism and luffing mechanism of the gantry crane, especially the brake failure during the lowering and increasing processes, seriously endangering production safety. Therefore, improving the reliability of the lifting mechanism and luffing mechanism brake has always been the focus of our equipment management and technical research.