Chain hoist brakes failing

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Chain hoist brakes failing

There will be a monorail hoist brake failure, even in the no-load will also fall. We have the cone brake ring to the limit position, still no use. In the sand casting workshop, the working time almost non-stop to use the driving, so a failure will affect production,
and the other kind of failure threatens the safety of workers' lives.

Chain hoist brakes failing

Cause of brake failure

In the overhaul, it is found that the hoist shaft end of a screw loosening caused by analysis, we believe that the failure is due to the hoist motor when the cone-shaped rotor in the action of electromagnetic force, in addition to the rotation movement, and
produce a right axial force, so that the axis to the right movement. When the power is cut off, the electromagnetic force
disappears, the rotor spindle is shifted to the left by compression spring force, so that the rotor is quickly braked, such a cycle, the vibration difference is large. Cause the braking ring and the motor back end of the snapping force between the reduction and
failure, serious space-time load of the hook will also fall.

Chain hoist brakes failing

 

Solution

To completely solve the hoist brake failure of loose M6, fastening bolts alone is not possible, so we use anaerobic adhesive to prevent loose, the electric hoist right end cone rotor is disassembled, the screw is removed, the screw hole and screws are cleaned with acetone, the screw hole and screws are respectively coated with anaerobic glue, and the screws are screwed into, wiping out
the excess glue, and the adhesive can be used after dry.
 
 
 

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