Method for reducing abnormal sound of speed transmission through needle bearing

Abstract

A method for reducing the abnormal sound of a transmission through a needle bearing, characterized in that the number of needle rollers of the needle bearing in the prior art is reduced from 23 to 22, and the distance between the needle rollers is allocated to another needle roller On the spacing, and make the distance between each needle roller vary. In this way, the inner surface of the outer ring that matches the needle bearing (in the inner hole of the gear) and the outer surface of the inner ring that matches the needle bearing (on the outer diameter of the shaft) have different indentation spacings. At the same time, the corresponding position of the indentation on the surface of the inner and outer rings of the needle roller bearing is constantly changing during the operation of the needle roller bearing. With less overlap, it is not easy to produce deeper indentations and cause abnormal noise in the transmission.

Description

technical field [0001] The present invention relates to a method, in particular, to a method for reducing abnormal noise of a transmission through a needle bearing. It belongs to the field of automotive technology. Background technique [0002] The needle roller bearings installed in the gears of the automobile transmission are different from the needle roller bearings used in other places. They are not loaded when they rotate, so it is said that they are not stressed when they rotate; When the gear is working, the needle bearing of this gear does not roll, but it is subjected to a lot of force at this time. With the continuous improvement of roads in our country, more and more expressways are built and opened to traffic. Automobile transmissions often work in a certain gear (especially high-speed gear) for a long time, which is prone to very slight indentation. Due to the original needle roller The needle rollers of the bearing are evenly distributed, and the distance bet...

AI Technical Summary

Problems solved by technology

[0003] After searching the literature of the prior art, it was found that the Chinese patent name: rolling bearing component, patent application number: CN01808444.3, this patent relates to a rolling bearing component, this kind of needle-type thin-walled needle roller bearing manufactured without chips The shaft sleeve or the needle sleeve is manufactured by using a cold-rolled strip without chips. The chemical composition and mechanical properties involved in the cold-rolled strip are prone to bearing abnormal noise and are not suitable for automotive transmissions.

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