Automobile hub combined oil seal

Abstract

The invention relates to an automobile hub combined oil seal belonging to a seal element. The automobile hub combined oil seal is characterized by mainly comprising an oil seal framework, a seal ring and spring rings, wherein the oil seal framework mainly comprises a main framework, a left support framework and a right support framework; the left part of the main framework is bent in a U shape toform an inner ring body and an outer ring body which are connected into a whole; the right end section of the inner ring body of the main framework is a right-angle recurvate upright ring body; the right-angle bent annular left support framework is in interference pressing or welding on the lower surface of the left part of the inner ring body of the main framework; the right-angle bent annular right framework is in the interference pressing or welding on the lower surface of the right part of the outer ring body of the main framework; the upright ring body of the right side of the inner ringbody of the main framework is provided with the seal ring of which the cross section is shaped like a Chinese character shan and is respectively and correspondingly provided with the left spring ringand the right spring ring; and the inner circumference of the seal ring is provided with a left lip ring and a right lip ring which are protruded. The invention has good coaxiality and good seal effect.

Description

technical field [0001] The invention belongs to a seal, in particular to an oil seal for an automobile hub. Background technique [0002] In existing automobiles, especially trucks, the wheel hub oil seal is generally sealed with double oil seals, that is, the inner and outer oil seals are installed on the hub spigot to seal oil and dust respectively. This structure is often caused by poor coaxiality of the two oil seals. , It is easy to move, causing oil leakage in the hub of the car during driving. Contents of the invention [0003] The purpose of the present invention is to provide a combination oil seal for automobile hubs. Two sealing lips are designed on one oil seal frame, so that the oil seal has the functions of sealing oil and dust at the same time, and the coaxiality of the two sealing lips is good, and the sealing is more accurate. tight. [0004] The object of the present invention is achieved in the following way: an automobile wheel hub combined oil seal i...

AI Technical Summary

Problems solved by technology

[0002] In existing automobiles, especially trucks, the wheel hub oil seal is generally sealed with double oil seals, that is, the inner and outer oil seals are installed on the hub spigot to seal oil and dust respectively. This structure is often caused by poor coaxiality of the two oil seals. , easy to move, causing oil leakage in the wheel hub of the car during driving

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