Precise and heavy-load type involute beveloid gear-enveloping hourglass worm transmission

Abstract

The invention discloses a precise and heavy-load type involute beveloid gear-enveloping hourglass worm transmission. The precise and heavy-load type involute beveloid gear-enveloping hourglass worm transmission comprises a gear and a hourglass worm, wherein the gear is made of a hard-tooth-surface wear-resistant material, the tooth surface of the gear is an involute surface, and gear teeth are wedge-shaped along the axial direction thereof; the hourglass worm is made of a medium-hard material, and the tooth surfaces of the both sides of the hourglass worm are enveloping surfaces taking the involute spiral tooth surfaces of the two corresponding sides of the gear as generatrices respectively, and formed by performing generating motion according to the engagement relationship between the gear and the hourglass worm. The precise and heavy-load type involute beveloid gear-enveloping hourglass worm transmission disclosed by the invention is large in transmission ratio range, high in bearing capacity, high in transmission reliability, easy for realize high-accuracy machining, capable of performing tooth side gap adjustment and tooth surface wear amount compensation by virtue of the movement of the axial position of the involute beveloid gear, and suitable for precise and heavy-load equipment such as elevator traction machines, machine tool indexing tables, industrial robots, radars and gun pitching and rotating systems.

Description

technical field [0001] The invention belongs to the field of mechanical transmission, in particular to precision heavy-duty worm transmission in worm transmission. Background technique [0002] The worm drive belongs to the cross-shaft drive, which has the characteristics of compact structure, stable transmission, low noise and small motion error. For a long time, worm transmissions at home and abroad are usually divided into two categories: "motion transmission" and "power transmission". The former mainly considers how to improve the "precision" of worm transmissions; the latter mainly considers how to make worm transmissions reach " Heavy load, high efficiency, long life". However, with the development of productivity and industrial technology, industries such as elevator traction machines, machine tool indexing tables, industrial robots, radar and artillery pitching and slewing systems urgently need a large bearing capacity, high precision, adjustable backlash and Preci...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the above-mentioned shortcomings of low precision of heavy-duty worm drive and low load-bearing capacity of precision worm drive, and to propose a worm gear with the advantages of high load-bearing capacity, high precision, adjustable backlash and wear compensation. Precision heavy-duty variable tooth thickness involute gear enveloping toroidal worm drive

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