The invention provides a chain type hydraulic hoist. The chain type hydraulic hoist comprises a brake unit, a speed reduction unit, a hoisting traction unit, a hydraulic driving unit and a lifting hook assembly, wherein the hydraulic driving unit transmits rotation of a rotor shaft of the hydraulic driving unit to a center wheel shaft of the speed reduction unit, the rotation is transmitted to a driving chain wheel of the hoisting traction unit after speed reduction and torque increase of the speed reduction unit, the hoisting traction unit is connected with the lifting hook assembly through a hoist chain, and the hoist chain is driven by the driving chain wheel to do a reciprocating motion; the lifting hook assembly is driven by the hoist chain to do a reciprocating motion; and the brake unit is used to reduce or stop rotation of the center wheel shaft. According to the chain type hydraulic hoist, a larger load is generated through more planetary gears, and friction between a planetary gear set and a first-stage gear and friction between the planetary gear set and a second-stage gear are reduced through antifriction pads, so that the power loss is reduced, and therefore, the requirements for low labor intensity and large load can be met.
本发明提供了一种链式液压葫芦。该链式液压葫芦包括制动单元、减速单元、起吊牵引单元、液压驱动单元和吊钩总成;液压驱动单元将其转子轴的旋转传递给减速单元的中心轮轴,经减速单元减速增扭后传递给起吊牵引单元的主动链轮,起吊牵引单元与吊钩总成通过葫芦链相连接,葫芦链在主动链轮的带动下做往复运动;吊钩总成在葫芦链的带动下做往复运动;制动单元用于降低或停止中心轮轴的旋转。本发明的链式液压葫芦通过更多的行星齿轮产生更大的载荷,使用减摩垫减少行星齿轮组与一级齿轮、二级齿轮的摩擦,减少动力损耗,从而能够实现劳动强度小、载荷大的要求。
Chain type hydraulic hoist
一种链式液压葫芦
2021-09-24
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
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European Patent Office | 2024
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