Sealing structure in automobile cooling transmission device

A technology of transmission device and sealing structure, which is applied in the field of machinery to achieve the effects of good waterproof performance, convenient manufacturing, assembly and disassembly, and low cost

Inactive Publication Date: 2007-05-23
ZHEJIANG NESSRAL MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a sealing structure in the automobile cooling transmission device for the bearing sealing problem existing in the existing automobile cooling transmission device, which solves the sealing problem of the bearing in the automobile cooling transmission device and improves the service life of the bearing , so that the sealing device of the bearing has the characteristics of low friction noise, less friction heat, relatively simple structure, easy manufacture, convenient disassembly and assembly, and low cost

Method used

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  • Sealing structure in automobile cooling transmission device
  • Sealing structure in automobile cooling transmission device
  • Sealing structure in automobile cooling transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] As shown in Figure 1, main shaft 3 and belt pulley 4 are provided in this automobile cooling transmission device, belt pulley 4 is sleeved on the main shaft 3, and bearing one 5 and bearing two 6 are arranged between belt pulley 4 and main shaft 3.

[0027] The sealing structure in the automobile cooling transmission device includes a sealing cover 2 sleeved on the main shaft 3 and a sealing gasket 1 nested on the outside of the sealing cover 2, which is arranged on the end face of the pulley 4; 4 end caps 9 at the outer ends.

[0028] Wherein the sealing gasket 1 and the pulley 4 are fixedly connected by screws, and the sealing cover 2 is pressed on the inner ring of the bearing one 5 through the shoulder 7 of the main shaft 3 .

[0029] As shown in Figures 1, 2, and 3, the sealing gasket 1 and the sealing cover 2 in this sealing structure are both ring-shaped, and the opposite side of the sealing gasket 1 in contact with the pulley 4 has a large convex ring 11, and it...

Embodiment 2

[0034] As shown in Fig. 4 and Fig. 5, another form of the sealing gasket 1 and the sealing cover 2 of the present sealing structure. Wherein the large convex ring 11 and the small convex ring 12 of the gasket 1 are of the same height, and the outer wall of the sealing cover 2 has a flange 24 . Others are all the same as in Example 1.

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Abstract

It solves the complex structure and difficult processing of the existing seal device for the bearings of cooling drive device for vehicles. With major shaft and belt wheels on the cooling drive device, this seal device is set at the end face of the belt wheel, comprises a seal washer embedded outside the seal cover on the major shaft, said seal cover fixed with the inner ring of the bearing and the major shaft, seal washer fastening with the belt wheel, seal cover and seal washer locking with each other with the gaps forming into a labyrinth seal. It has fine anti dust and water proof performance with reduced friction noise and heat. It is convenient for loading and unloading with low cost.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to an automobile cooling transmission device. Background technique [0002] In the cooling transmission of automobiles, the traditional bearing seal is a rubber oil seal structure, which has the problems of easy falling off and wear of the oil seal, large friction torque, high temperature, short life and poor sealing performance, which greatly reduces the use of bearings. Life expectancy increases the maintenance cost of the vehicle. Therefore, the relevant bearing manufacturing and application departments have also proposed many improved structures, such as the labyrinth type composed of metal stamping parts or metal processing parts, the metal expansion ring type, and the later power labyrinth type and double lip labyrinth type, but they may be due to the structure Too simple and poor sealing performance, or high cost due to difficult processing, or difficult to assemble and disas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/447F16H55/36
CPCF16C19/06F16C33/80F16C2361/63
Inventor 徐武
Owner ZHEJIANG NESSRAL MACHINERY
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