A combined gear difference and screw thread lifting device for heavy objects

Abstract

The invention discloses a gear difference and screw thread combined type heavy object lifting device, which comprises a main hollow shell. The invention uses the gear difference technology to drive the large gear to rotate with the small gear, so as to achieve the effect of reducing the driving force and realize the force reduction, so that the lifting degree can be small to large, and the device uses reverse threads to realize Height adjustment has the characteristics of obvious adjustment effect and lower weight of the lifting part, so its overall weight is light, the use cost and manufacturing cost are relatively low, and it is convenient to use and carry. Moreover, the device has a reverse thread structure longitudinal height adjustment type lowering The power rotation drive mechanism can realize the height adjustment function by using the function of the reverse thread, so as to adjust the torque, reduce the strength required for rotation, and achieve a small belt with a large size. In addition, the device has a spherical structure universal rotary component connection mechanism, While realizing the connection of the two parts, the rotation function of the two parts at the connection part will not be affected.

Description

technical field [0001] The invention relates to the technical field of lifting, 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 to...

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.

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