Speed-controllable gravity lowing winch provided with built-in gear reducer

Abstract

The invention relates to a speed-controllable gravity lowing winch provided with a built-in gear reducer. The built-in gear reducer is arranged in a winding drum; a casing at an input end of the built-in gear reducer is fixed on a winch support; a transmission shaft is fixedly connected with an output end of the built-in gear reducer; the transmission shaft and an input shaft of the built-in gear reducer are coaxially arranged; the built-in gear reducer is provided with a front end casing and a gear reducer lower box; a full floating type internal expanding clutch is mounted on the transmission shaft; a bearing seat supports the transmission shaft through a first bearing; a brake drum outer ring is arranged outside the winding drum and provided with an external expanding belt brake which is hung on the brake drum outer ring in a sleeving manner. The speed-controllable gravity lowing winch is compact in structure, small in size and safe and reliable to use, can not only improve the loading and unloading operation efficiency of hoisting machinery, but also can save energy, and can simultaneously integrate the built-in gear reducer and the full floating type internal expanding clutch in the winding drum, so that a heavy object can be driven to go up and down by a steel wire rope.

Description

technical field [0001] The invention relates to a winch, in particular to a speed-controllable gravity descending winch with a built-in reducer. Background technique [0002] Mobile lifting machinery such as port tire cranes and truck cranes are popular for their good mobility. However, its volume is limited. The larger the volume, the poorer the crane's passing capacity; for port tire cranes, the volume is large, and the manufacturing cost is high. Moreover, for ports where every inch of land is expensive, the utilization rate of the port freight yard will inevitably be reduced. [0003] At present, the hoisting mechanism of the port tire crane has the function of gravity lowering, and the speed of gravity lowering can be controlled; the reel of this hoisting mechanism integrates the clutch and brake with the function of gravity lowering, but the ordinary reducer cannot be used at the same time. Integrated in the reel, the reducer and the reel are arranged as independent c...

AI Technical Summary

Problems solved by technology

However, its volume is limited, the larger the volume, the poorer the crane's passing capacity; for the port tire crane, the volume is large, the manufacturing cost is high, and for the port where every inch of land is expensive, the utilization rate of the port freight yard will inevitably be reduced

[0003] At present, the hoisting mechanism of the port tire crane has the function of gravity lowering, and the speed of gravity lowering can be controlled; the reel of this hoisting mechanism integrates the clutch and brake with the function of gravity lowering, but the ordinary reducer cannot be used at the same time. Integrated in the reel, so that the reducer and the reel are arranged as independent components on the turntable of the crane, which takes up a lot of space

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