Axle hub oil seal with repeatedly dismounting-and-mounting function and displacement resisting function

Abstract

The invention discloses an axle hub oil seal with a repeatedly dismounting-and-mounting permitted function and a displacement resistant function. The an axle hub oil seal comprises an outer oil seal,a shaft sleeve and a dustproof framework, wherein a front chamfer is arranged on the top corner of one side of an outer framework of the outer oil seal, a spring groove is formed in the bottom of theouter framework of the outer oil seal, a spring is arranged at the upper part of the spring groove, a buffer block is arranged on one side of the lower part of the outer oil seal, a main sealing lip is integrally formed at the bottom of the outer framework of the outer oil seal, an auxiliary lip is integrally formed on the side, close to the buffer block, of the main sealing lip, the shaft sleeveis arranged below the main sealing lip, an inner convex ring is arranged at the lower part of the framework in the shaft sleeve, a first muddy water prevention lip is arranged at the lower end of theleft side of the framework in the shaft sleeve, and a third muddy water prevention lip is arranged in the part, on the left side of the framework and inner side of a protrusion extending part, of theshaft sleeve. According to the axle hub oil seal, the outer surface of the outer framework of the outer oil seal is a metal surface, and can be tightly matched with a hole, so that the oil seal is prevented from falling off during vibration, the rubber coating is added at the inner side position, and the sealing performance can be improved.

Description

technical field [0001] The invention relates to the field of automobile oil seal technical equipment, in particular to an axle wheel hub oil seal that can be disassembled and assembled many times and is resistant to movement. Background technique [0002] Oil seal, also known as shaft seal, is a device part used in machines to prevent fluid (mostly lubricating oil) from overflowing from joints (mostly joint surfaces or shafts of parts). Skeleton oil seal is a typical representative of oil seal. Generally speaking, oil seal refers to skeleton oil seal, which is widely used in aviation, automobile, motorcycle, railway, vehicle, ship, home appliance, construction machinery and other industries. The function of the oil seal is generally to isolate the parts that need to be lubricated from the output parts in the transmission parts, so as not to let the lubricating oil leak. [0003] The axle oil seal is an important component of the automobile hub. Due to the complex and change...

AI Technical Summary

Problems solved by technology

[0003] The axle oil seal is an important component of the automobile wheel hub. Due to the complex and changeable road conditions, it will encounter various conditions during use, resulting in seal failure.

Among the numerous seal failure oil leakage accidents, many are caused by poor movement resistance of sealing products

In addition, in the maintenance operation of the traditional hub seal, the sealing device usually needs to be replaced after the sealing device is disassembled, which greatly increases the cost

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