Combined oil seal structure

A combined oil seal technology, which is applied to engine seals, engine components, mechanical equipment, etc., can solve the leakage of skeleton oil seal and shaft seal, the pressure force between oil seal body and shaft becomes smaller, and the elastic force of spring tends to become smaller, etc. problem, to achieve the effect of increased sealing effect

Pending Publication Date: 2022-01-28
YANCHENG QIAOSHENG MOTOR VEHICLE FITTINGS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the traditional oil seals in the prior art are in use, most of the skeleton oil seals only use spring coils to make the oil seal body fit on the rotating shaft. The pressing force between the body and the rotating shaft is easy to decrease, which will cause leakage between the skeleton oil seal and the rotating shaft seal, and a combined oil seal structure is proposed.

Method used

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Examples

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Embodiment 1

[0020] Example 1, such as Figure 1-3 As shown, the present invention provides a combined oil seal structure, which includes a rubber body 1 , and a sealing mechanism 2 is arranged inside the rubber body 1 .

[0021] Let's talk about the concrete setting and effect of its sealing mechanism 2 in detail.

[0022] Such as Figure 1-3 As shown, the sealing mechanism 2 includes a supporting frame 201, the inside of the rubber body 1 is a cavity structure, the bottom of the supporting frame 201 is adhered to the inner surface wall of one side of the rubber body 1, and the inner bottom surface of the rubber body 1 is adhered with a sealing rubber 202, the outer surface of the sealing rubber 202 is provided with an annular groove, and the inside of the annular groove is provided with a spring ring 203, and the inner bottom surface of the rubber body 1 close to the side of the sealing rubber 202 is adhered with a protective rubber 206, and the protective rubber 206 The bottom is adhe...

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Abstract

The invention provides a combined oil seal structure, and relates to the technical field of oil seals. The combined oil seal structure is characterized in that a sealing mechanism is arranged in a rubber body, and comprises a supporting framework, the interior of the rubber body is of a cavity structure, and the bottom of the supporting framework adheres to the inner surface wall of one side of the rubber body. According to the invention, when the oil seal is used, the restoring force generated by the deformation of the rubber ring firstly applies pressure to the sealing rubber, the sealing rubber continuously applies pressure to the output shaft to realize sealing work, and the restoring force generated by the deformation of the extension spring continuously applies pressure to the protection rubber so as to make the annular framework apply pressure to the sealing rubber to deform the sealing rubber, so that the sealing rubber is subjected to the pressure applied to the output shaft again; and in the whole use process, deformation is generated by applying pressure to the sealing rubber twice, so that the sealing effect of the oil seal structure is greatly improved.

Description

technical field [0001] The invention relates to the technical field of oil seals, in particular to a combined oil seal structure. Background technique [0002] The oil seal is a mechanical component used to seal oil. It isolates the parts that need to be lubricated from the output parts in the transmission parts, so that the lubricating oil will not leak. The seals used for static seals and dynamic seals (general reciprocating motion) are called seals. Oil seals The most representative form is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully covered by rubber. Generally speaking, the oil seal often refers to this TC skeleton oil seal. [0003] However, when the traditional oil seal is in use, the skeleton oil seal mostly only fits the oil seal body to the shaft through the spring ring. After a long time of use, the pressure force between the oil seal body and the shaft tends to become smaller due to the elastic force of the spring and wear ...

Claims

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Application Information

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IPC IPC(8): F16J15/3284F16J15/3248
CPCF16J15/3284F16J15/3248
Inventor 卢木清
Owner YANCHENG QIAOSHENG MOTOR VEHICLE FITTINGS CO LTD
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