Double-worm automatic clearance removing type worm pair structure

Abstract

The invention discloses a double-worm automatic clearance removing type worm pair structure. The double-worm automatic clearance removing type worm pair structure comprises a fixed worm, a movable worm and an elastic structure, wherein the movable worm and the fixed worm are coaxially rotated, are circumferentially fixed and can axially relatively move; the elastic structure is mounted between thefixed worm and the movable rod and is used for supplying force through which the fixed worm and the movable worm move away from each other, and thus the fixed worm and the movable worm can be in contact with a tooth surface of a worm gear, and as a result, rear clearances between the worm gear, the fixed worm and the movable worm can be removed; in addition, the abrasion of the worm gear and theworms can be compensated in real time through the elastic structure; high-accuracy transmission is realized; and moreover, manual regular adjusting of the worm gear and the worms is not needed.

Description

technical field [0001] The invention relates to a worm, in particular to a double worm self-clearance worm pair structure. Background technique [0002] In recent years, with the development of equipment manufacturing technology, precise and zero-backlash transmission requirements have been put forward for servo drive equipment. However, in the application of machine tools, due to the existence of backlash in the commonly used worm gear transmission, the reverse motion will cause the transmission to fail, thereby reducing the precision of the transmission and affecting the stability. Although the current mainstream double-lead worm can reduce the backlash in a short time, it requires artificial readjustment after a period of time after the worm wears out, which is very troublesome. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a worm pair structure that can compensate the wear o...

AI Technical Summary

Problems solved by technology

In the application of machine tools, due to the existence of backlash in the commonly used worm gear drive, the reverse motion will cause the transmission to fail, thereby reducing the accuracy of the transmission and affecting the stability.

Although the current mainstream double-lead worm can reduce the backlash in a short time, it requires artificial readjustment after a period of time after the worm wears out, which is very troublesome.

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