Oil seal for steering column of automobile

Abstract

The invention discloses an oil seal for a steering column of an automobile. A fixing groove is formed in a shaft neck of the steering column; an integral oil seal is arranged on the end surface and the shaft neck of the steering column; and the integral oil seal sleeves the shaft neck of the steering column from the end surface of the steering column, wherein the inner wall of the integral oil seal is provided with a convex ring, and the convex ring and the fixing groove are matched to use. The integral oil seal sleeves the shaft neck of the steering column from the end surface of the steering column, and is fixed in the fixing groove through the convex ring, so that the integral oil seal not only plays a role in sealing the end surface of the steering column, but also plays a role in sealing the shaft neck of the steering column when being used, and the integral structure is better in sealing effect; and meanwhile the oil seal is very convenient to install and connect, and an oil seal end cover and a riveting process are omitted. Due to the adoption of an integral oil seal structure, the amount of parts is reduced, the weight is reduced, the riveting process is omitted, and process steps are reduced; the investments of equipment, tools and the like are avoided, and the labor intensity is reduced; and the total object cost is reduced.

Description

technical field [0001] The invention relates to a component used in an automobile steering system, in particular to an oil seal for an automobile steering column. Background technique [0002] At present, in the sliding pair structure on the steering column of the automobile, the seal is sealed by rubber parts, and the steel parts are punched and riveted to fix the structure. Its structure is as figure 1 As shown, a sealing ring 2 is provided on the end surface of one end of the steering column 1, which is inserted through an oil seal end cover 3, and the oil seal end cover 3 is punched and fixed on the journal of the steering column 1, wherein the steering column 1 There is a punching riveting fixing groove 4 on the journal, so that the punching riveting rivet 5 is in the punching riveting fixing groove 4; this structure is insufficient: there are many parts, the process is complicated, and if the oil seal end cover 3 cannot fully compress the sealing ring during punching ...

AI Technical Summary

Problems solved by technology

Its structure is as figure 1 As shown, a sealing ring 2 is provided on the end surface of one end of the steering column 1, which is inserted through an oil seal end cover 3, and the oil seal end cover 3 is punched and fixed on the journal of the steering column 1, wherein the steering column 1 There is a punching riveting fixing groove 4 on the journal, so that the punching riveting rivet 5 is in the punching riveting fixing groove 4; this structure is insufficient: there are many parts, the process is complicated, and if the oil seal end cover 3 cannot fully compress the sealing ring during punching riveting 2 will lead to oil leakage, or the seal ring 2 cannot cling to the end face of the steering column 1 due to the rebound of the oil seal end cover 3 during punching and riveting, resulting in oil leakage

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