What are the main faults of the brakes?

The reliability of the brake is directly related to the safety of people and equipment, so the requirements for its reliability are particularly high.

The reliability of the brake is directly related to the safety of people and equipment, so the requirements for its reliability are particularly high. However, there are many failures of hydraulic push rod brakes currently in use. The main failure phenomena are as follows:

(1) The square coupling between the motor shaft and the impeller shaft is loose and then falls off, the motor shaft is idling and the hydraulic cylinder does not move.

(2) The push rod of the hydraulic push rod brake releaser is bent and deformed, and the brake releaser does not work properly.

(3) The hydraulic push rod brake spring is broken and the brake cannot be closed.

(4) The active hinge point of the brake frame is stuck, and the opening and closing of the brake is slow or does not move.

(5) The active hinge pin of the brake frame is loose, and the brake does not work properly;

(6) The brake belt and brake wheel are seriously worn, and the braking torque becomes smaller or loses the braking torque.

(7) The drive motor of the hydraulic push rod brake releaser is out of phase, and the motor and the brake releaser do not act.

The above faults directly lead to the reduction of the reliability of the hoisting mechanism and the luffing mechanism of the portal crane, especially the braking failure in the descending process and the increasing process, which seriously endangers the production safety. The focus of our equipment management and technical research.

Keywords:

brake,cause of issue