Limitable rotation device for hoisting boom of bridge crane
An overhead crane and slewing device technology, applied in cranes, transportation and packaging, load hanging components, etc., can solve the problems of short service life of the rotating shaft, vibration in the jogging process, and complicated operation process, so as to prolong the service life and reduce the The effect of failure, smooth transmission
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[0023] Such as figure 1 As shown, the present invention provides a limitable slewing device for a boom of a bridge crane, comprising a main motor 1 and a motor slewing adjustment mechanism 5, the output shaft 2 of the main motor 1 passes through the inner wall of the support frame 3 and the motor The rotary adjustment mechanism 5 is axially connected, the main motor 1 is fixedly installed on the left side of the operation platform 4, and a support frame 3 is arranged on the upper surface of the operation platform 4, and the left and right ends of the support frame 3 are all provided with There is an electromagnetic clutch 20, the upper shaft of the inner wall of the support frame 3 is connected to the motor rotation adjustment mechanism 5, and the motor rotation adjustment mechanism 5 is arranged on the upper surface of the operating platform 4, and the upper surface of the support frame 3 is also provided with A fixed plate 7, the upper surface of the fixed plate 7 is also pr...
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