The invention discloses a quick adjustment device for a weight limiter of an electric chain hoist with loads. The quick adjustment device comprises the weight limiter arranged between a rotor shaft of a hoisting motor and a first-level gear transmission shaft; the rear section of the rotor shaft is supported through a rear supporting bearing; the rear supporting bearing is located in a stepped hole in a rear end cover of the hoisting motor; outer ring working faces of adjacent disc springs are in full contact through first dislocation-proof space rings; inner ring working faces of the adjacent disc springs are in full contact through second dislocation-proof space rings; the axial pressure of the disc springs is set and adjusted through an adjusting nut with a locking screw; the adjusting nut is screwed into the stepped hole to abut against the rear supporting bearing. By means of the technical scheme, the assembling accuracy of the disc springs is high, and mutual dislocation is completely avoided during usage; the load limiting stability of the weight limiter is high, the accuracy of setting and adjusting load limiting values is high, and the consistency of repeated adjustment of the load limiting values is good; the load limit setting and adjusting can be conducted outside a machine and in the loading state.
Quick adjustment device for weight limiter of electric chain hoist with loads
2016-01-20
Patent
Elektronische Ressource
Englisch
IPC: | B66D Haspeln , CAPSTANS |