Gear difference and thread combined type heavy object lifting device

Abstract

The invention discloses a gear difference and thread combined type heavy object lifting device. The gear difference and thread combined type heavy object lifting device comprises a main hollow shell.According to the device, the gear difference technology is utilized, a pinion drives a large gear to rotate, so that the effect of reducing the driving force is achieved, force reduction is achieved,the lifting degree can be gradually increased, moreover, height adjustment is achieved through the reverse threads, the adjustment effect is obvious, the mass of a lifting part can be reduced, thus the device is light in overall mass, the use cost and the manufacturing cost are low, and using and carrying are convenient; moreover, the device is provided with a longitudinal height adjustment type force reduction rotation driving mechanism with a reverse thread structure, the height adjustment effect can be achieved under the action of reverse threads, so that the torque is adjusted, the force needed during rotation is reduced, and the effect of bringing large force with small force is achieved; and in addition, the device is provided with a universal rotary part connecting mechanism with aspherical structure so that the connection of two parts can be realized, and meanwhile, the rotating function of the two parts at the connecting part cannot be influenced.

Description

technical field [0001] The invention relates to the field of lifting technology, in particular to a gear differential and thread combined type heavy object lifting device. Background technique [0002] At present, in vehicle maintenance sites and large-scale mechanical parts maintenance sites, heavy object lifting devices are needed to lift the equipment when repairing specific parts, so as to facilitate work. However, most of the existing lifting devices are hydraulic lifts. Its manufacturing cost, use cost and maintenance cost are relatively high, and, due to the existence of high-pressure liquid and the requirement of cylinder body strength, it is very difficult to carry the device conveniently, and the use limitation is relatively large. Contents of the invention [0003] The object of the present invention is to provide a gear difference and thread combined type weight lifting device to solve the problems raised in the above background technology. [0004] In order t...

AI Technical Summary

Problems solved by technology

[0002] At present, in vehicle maintenance sites and large-scale mechanical parts maintenance sites, heavy object lifting devices are needed to lift the equipment when repairing specific parts, so as to facilitate work. However, most of the existing lifting devices are hydraulic lifts. It is relatively high in manufacturing cost, use cost and maintenance cost. Moreover, due to the existence of high-pressure liquid and the requirement of cylinder strength, it is very difficult to carry the device easily, and the use limitation is relatively large.

Images