Adaptor device for synchronous butt joint of main cone nut and flange of automobile drive axle assembly

Abstract

The invention relates to an adaptor device for the synchronous butt joint of a main cone nut and a main cone flange of an automobile drive axle assembly. The adaptor device comprises an adaptor inner cylinder, a splitting gland and an adaptor outer cylinder; inner bores are formed on the adaptor inner cylinder and the adaptor outer cylinder; the shape of the inner bore of the adaptor inner cylinder is meshed with that of the outer diameter of the main cone nut; a cylindrical shaft shoulder is arranged on the middle part of the outer circumferencial surface of the adaptor inner cylinder; the outer circumference of the cylindrical shaft shoulder is matched with the inner circumference of the adaptor outer cylinder, so that the adaptor inner cylinder is embedded into the adaptor outer cylinder concentrically; and the splitting gland has a semicircular step structure and is fixedly connected with the adaptor outer cylinder, so that the adaptor outer cylinder is prevented from being fallenout of the adaptor inner cylinder and can rotate relative to the adaptor inner cylinder. The adaptor device has the advantage that: compared with the main cone flange needing to be fixed in the priorart, the main cone nut which is screwed tightly by rotating has better accurate control effect and higher work efficiency.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and in particular relates to assembly auxiliary equipment for drive axle assemblies. Background technique [0002] The car drive axle assembly (usually the rear axle, and the four-wheel drive vehicle also includes the front axle) is the last assembly. The drive axle assembly is mainly composed of drive axle housing, final drive, differential and half shaft. The main reducer in the drive axle assembly bears large axial and radial impact loads, and its basic function is to transmit the power input from the transmission assembly to the driving wheels at last. The main reducer, also known as the main drive, is composed of a pair of spiral bevel gear assemblies, which are the driving bevel gear assembly and the driven bevel gear assembly. Its function is to reduce the speed, increase the torque, and change the direction of the rotation axis to ensure The car has plenty of traction and the right s...

AI Technical Summary

Problems solved by technology

The main cone nut 5 usually adopts an outer hexagonal structure, and the shaft 12 needs to be rotated at a certain angle to dock with the main cone nut 5; and due to the influence of the processing technology of the parts, each part will have some slight differences in size, which will It affects the alignment between the main cone nut 5 and the shaft 12. At this time, the problem of the butt joint between the main cone nut 5 and the shaft 12 becomes serious, which will seriously affect the assembly efficiency of the rear axle of the automobile.

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