Outer ring forged piece of wheel hub unit

Abstract

The invention belongs to the technical field of wheel hubs, and especially relates to an outer ring forged piece of a wheel hub unit. A technical problem that the prior art does not benefit for subsequent processing is solved. The outer ring forged piece comprises a cylinder, the inner wall of the cylinder is provided with a reserved reinforcement portion dividing the internal of the cylinder into a first tapered reserved blind hole and a second tapered reserved blind hole, the outer wall of the cylinder is provided with a plurality of circumferentially uniformly distributed columns, one end of each of the columns is provided with a reference positioning surface, the reference positioning surfaces are positioned at same ends of the columns, the outer wall of the cylinder is also provided with a plurality of oil hole bosses positioned between two adjacent columns and connected with the cylinder to form a one-piece structure, the oil hole bosses are obliquely arranged in a consistent direction manner, and one end of each of the oil hole bosses far away from the cylinder is provided with a positioning plane. The outer ring forged piece benefits for subsequent processing and realizes a high making production efficiency.

Description

technical field [0001] The invention belongs to the technical field of wheel hubs, in particular to an outer ring forging of a wheel hub unit. Background technique [0002] The automobile hub is an important part of the automobile, which plays a vital role in the safety system of the automobile. The automobile hub unit includes a mandrel, an outer ring and an inner ring. In order to improve the structural strength of the outer ring of the wheel hub and improve production efficiency, for Therefore, people have carried out long-term exploration and proposed various solutions. [0003] For example, the Chinese patent document discloses a forging structure for an outer hub of an automobile, [Application No.: 201220612562.8], which includes a hub body, and there are three protrusions around the hub body, and the ends of the protrusions are provided with inverted The chamfer and the raised part are connected by an arc segment, and the inner wall of the hub body has a shaft hole. ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned solution has improved some problems of the prior art to a certain extent, but this solution still has at least the following defects: it is not conducive to subsequent processing and manufacturing, especially the drilling process of the shaft hole of the outer ring, and there is no stable drilling positioning Standard, the product during processing is easy to tilt and rotate, causing the shaft hole to deviate; in addition, the manufacturing cost is high and the production efficiency of the blank is low. Secondly, it is not conducive to the subsequent processing of the oil hole

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