Structure for locking wheel locking nut and drive shaft

Abstract

The invention discloses a structure for locking a wheel locking nut and a drive shaft, comprising a wheel locking nut and a drive shaft. The outer circumferential surface of the wheel locking nut is divided into three sections by three steps, wherein the section of the most lower end is a disc gasket end, the middle section is a polygonal cylindrical main body, and the section of the upper end is a locking edge; the outer circumferential surface of drive shaft, which is near the end, is provided with a skewed slot; after the wheel locking nut is screwed down on the drive shaft, the locking edge is knocked until the wheel locking nut clings to the skewed slot, thereby locking the wheel locking nut and the drive shaft. The structure cancels a cotter pin, which solves the problem that the connection of the wheel and the drive shaft is not reliable. The locking nut of the structure has simple and easy processing and has reliable connection with the drive shaft. Compared with the traditional structure, the structure has more convenient assembly, and the required accuracy of locking and torsion is improved.

Description

technical field [0001] The invention relates to the technology of locking between an automobile wheel and a drive shaft. Background technique [0002] Front-wheel drive cars require a safety lock on the connection between the wheel and the drive shaft to prevent the connection between the wheel and the drive shaft, which will cause the car to lose power instantly and endanger the safety of the car. To solve this problem, the wheels must be firmly locked to the drive shaft. [0003] At present, the locking method with cotter pin type is mostly used at home and abroad, see figure 1 and figure 2 , it must make the opening 5 of the cotter pin type lock nut 2 consistent with the shaft opening 6 on the drive shaft 4, so as to ensure that the cotter pin 3 passes through the installation hole smoothly, and ensuring their consistency requires high manufacturing accuracy , otherwise it will not meet the torque requirements for locking the wheel and the drive shaft after assembly, ...

AI Technical Summary

Problems solved by technology

[0003] At present, the locking method with cotter pin type is mostly used at home and abroad, see figure 1 and figure 2 , it must make the opening 5 of the cotter pin type lock nut 2 consistent with the shaft opening 6 on the drive shaft 4, so as to ensure that the cotter pin 3 passes through the installation hole smoothly, and ensuring their consistency requires high manufacturing accuracy , otherwise it will not meet the requirements of locked wheel and drive shaft torque after assembly, which may damage the bearing of brake 1

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