Adjusting nut locking structure and locking plate

Abstract

The invention discloses a novel locking structure of an adjusting nut, wherein the locking structure comprises the adjusting nut and a locking sheet. The locking structure is characterized in that the end surface ring of the adjusting nut is provided with a trench or a groove for containing locking dogs; the locking sheet is of a star-shaped structure, and a plurality of locking dogs are arranged along the circumference direction; the locking sheet is installed on a circumference taking the center of the adjusting nut as the center of a circle, and a connecting line of the center of a mounting hole of the locking sheet and the center of the adjusting nut has an offset distance from a locking dog working surface. The locking sheet provided by the invention has a plurality of working positions, and the adjusting nut can be locked when the adjusting nut is loose in a tiny range or is not loose, thus the adjusting efficiency and reliability of the adjusting nut are improved.

Description

technical field [0001] The invention relates to a novel locking structure of an adjusting nut and a locking piece. Background technique [0002] Adjusting nuts have a wide range of uses. They can be used to adjust the preload of springs or bearings, and can also be used to adjust the stroke of valves. They can also adjust the preload of bearings and the displacement of other parts at the same time. [0003] As a typical application, the installation and adjustment of the main transmission components (active and passive bevel gears and differential) on the drive axle is realized by adjusting the nut. The adjustment process is as follows: by rotating the adjustment nut, the passive The bevel gear produces axial displacement, so as to achieve the purpose of adjusting the meshing state of the active and passive bevel gears. In this process, the two bearings of the differential are adjusted at the same time and the bearings have an ideal preload. After the gear meshing and beari...

AI Technical Summary

Problems solved by technology

[0005] The other is to rely on cotter pins to lock, such as figure 2 As shown, after the meshing marks of the active and passive bevel gears, the clearance on the ulnar side and the pretightening force of the differential bearing are adjusted, the cotter pin 5 is inserted into the hole of the bearing cover so that the opening of the cotter pin is located on the end surface of the adjustment nut 1 The lock is realized in the ditch or the groove, the locking effect of this structure is very poor, and the cotter pin often breaks, resulting in the failure of the lock

[0006] Due to the above-mentioned shortcomings of the existing locking structure, the adjustment nut will loosen or even the locking will fail during the operation of the vehicle.

The failure of the lock will cause the main transmission parts in the main reducer to wear and fracture in a short period of time, and the vehicle cannot run normally

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