Processing method capable of improving the contact quality of bevel gear pair of K series speed reducer

Abstract

The invention belongs to the field of bevel gear pair deep processing, and especially relates to a processing method capable of improving the contact quality of a bevel gear pair of a K series speed reducer. According to the method, a contact area pre-adjusting method is adopted, an after-heat-treatment tooth shape change rule is taken into account; related parameters are adjusted in advance before a heat treatment; and the eccentric angle is reduced by 1 / 3 degree so that a tooth shape is arranged on an ideal position of a tooth surface after the heat treatment. The change rule of a contact area of a K series speed reducer is researched before and after a heat treatment, wherein the gear ratio of the bevel gear pair of the K series speed reducer is 8:33. The contact area is corrected in advance so as to improve the contact quality. The tooth surface contact area is effectively corrected, and the noise is reduced.

Description

technical field [0001] The invention belongs to the field of deep processing of bevel gear pairs, and in particular relates to a processing method for improving the contact quality of bevel gear pairs of K series reducers. Background technique [0002] Under normal meshing operation conditions of a pair of bevel gear pairs, the actual contact part on the tooth surface is commonly called "contact area", also known as "contact spot". There is a direct impact, so the contact area of ​​the tooth surface becomes one of the important signs to measure the meshing quality of the bevel gear. In the GB11365-89 bevel gear accuracy standard, different requirements are put forward for the contact area of ​​gears with different accuracy grades. In the ISO17485-2009 bevel gear accuracy standard, the quality of the contact area is not related to the accuracy grade, but according to the processing practice Experience and customer requirements to meet end use are used as the basis for judgin...

AI Technical Summary

Problems solved by technology

[0004] At present, after heat treatment and deformation, in order to obtain an ideal contact area after heat treatment, the usual practice is to grind the deformed gear; after grinding, the contact area can also be significantly improved, and the grid data is also significantly reduced, and the square sum Concave from 151582 to 10106, convex from 232104 to 21139 (such as image 3 shown), therefore, through grinding, although the shape of the tooth surface is greatly improved and the contact quality is improved, the effect is not very satisfactory

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