Fully-sealed dustproof structure of fixed belt tension pulley component

A technology of dust-proof structure and tensioner, which is applied to belts/chains/gears, engine seals, components with teeth, etc., and can solve problems such as high cost, inability to meet dust-proof capability requirements, and complicated dust-proof covers , to achieve the effect of low cost, improved product life and simple operation

Active Publication Date: 2014-12-24
CHENGDU JIALING HUAXI OPTICAL & PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dust cover of this structure is relatively complicated and costly. When the engine works under harsh conditions such as dust and sand, it can no longer meet the requirements of dustproof capability. Therefore, the application of a fully sealed dustproof structure is imperative.

Method used

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  • Fully-sealed dustproof structure of fixed belt tension pulley component

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0011] like figure 1 As shown, a fixed belt tensioner assembly is fully sealed and dust-proof structure, which includes pulley 1, bearing retaining ring I2, bearing retaining ring II3, dust cover 4, bearing 7 and elastic retaining ring 6 for holes, bearing 7 Cooperate installed on the inner side of the pulley 1, one side of the inner hole of the pulley 1 is provided with a step to limit the outer ring of the pulley 1, and the other side is sequentially provided with a circlip groove for the hole and a slot for the dust cover, and the circlip 6 for the hole is installed on the In the groove of the elastic circlip for the hole, the elastic circlip 6 for the hole is in contact with the other side of the outer ring of the bearing 7, and the two sides of the inner ring of the bear...

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Abstract

The invention relates to a fully-sealed dustproof structure of a fixed belt tension pulley component. The fully-sealed dustproof structure comprises a belt pulley (1), a bearing check ring I (2), a bearing check ring II (3), a dustproof cover (4), a bearing (7) and a hole spring collar (6), wherein the bearing (7) is arranged on the inner side of the belt pulley (1) in a matched way; a step for limiting an outer ring of the belt pulley (1) is arranged on one side of an inner hole of the belt pulley (1); the hole spring collar (6) is arranged in a hole spring collar groove, and is matched with the other side of an outer ring of the bearing (7) in a contact way; the bearing check ring I (2) and the bearing check ring II (3) are also arranged on the two sides of an inner ring of the bearing (7) respectively, and are connected through a bolt (5); the dustproof cover (4) is press-fitted in a dustproof clamping groove. The fully-sealed dustproof structure has the advantages of simplicity, low cost, convenience in operation and good sealing effects.

Description

technical field [0001] The invention relates to a dustproof structure of a fixed belt tensioner assembly, in particular to a fully sealed dustproof structure of a fixed belt tensioner assembly. Background technique [0002] The fixed belt tensioner assembly is generally installed at the lower part of the front wheel train of the engine. The working conditions are harsh. In order to reduce the dust and mud entering the product and causing bearing failure, it is often necessary to cover the internal structure of the pulley. The existing Most of the dust-proof covers are made of plate blanking, punching, forming, and flanging, and then the dust-proof cover is tightened by hexagonal flange bolts to achieve the purpose of dust-proofing. However, the dustproof cover of this structure is relatively complicated and expensive. When the engine is working under harsh conditions such as dust and sand, it can no longer meet the dustproof capability requirements. Therefore, the applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10F16J15/06F16H55/36
Inventor 丁全玉李天兰
Owner CHENGDU JIALING HUAXI OPTICAL & PRECISION MACHINERY
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