Solve hoist brake failure

      After a period of time using the  Rope hoist  brake failure phenomenon, even in the no-load hook will own decline. Will be adjusted to limit position conical brake ring any avail. In sand casting workshop, working time is almost non-stop to use the road, so a failure will affect production, in addition to this failure occurred in workers to operate the venue was very safe.

Resolve the cause electric hoist brake failure
       In maintenance, found a  wire rope hoist  shaft screw loosening caused by the analysis, we believe that the reason for the failure of the motor is energized, the conical rotor under the action of the electromagnetic force, in addition to a rotating movement, the same time produce a right- axial force, the axis moves to the right. Electric hoist motor brake spindle taper ring one right there with the motor cover 3 Disengagement and the motor spindle spring 2 is compressed, the motor normal rotation, through the coupling and gear mechanism driven drum rotation, so that heavy lifting. When the power is turned off, the electromagnetic force disappears, the rotor shaft to the left by the force of the compression spring member 1 and the member 3 has a certain pressure again snapping, rapid braking of the rotor, such a cycle, vibration big difference. Although the spring lock washer, but due to the frequent under severe shock, vibration, and small screws, resulting in a period of time, the member 3 is constantly left loose until the contact with the member 5, which impede the member 5 to the left in shutdown normal axial movement, resulting in the right side of the brake ring member 5 and the motor between the rear end cover snapping force decreases and failure, severe-load hook will own decline.

       Solution: To solve the problem of the M6   loosening, tightening bolts alone is not enough, so we use ZY-802 locking anaerobic adhesive cements way, the right end of the conical rotor  lift hoist  apart, remove the screw, washed with acetone screws, screw, screws, screw holes were painted ZY-802 anaerobic adhesive and screw into the, wipe the excess glue, paste, can be dry after use.