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Sealing device for hub bearing unit of agricultural machine

A technology of hub bearings and sealing devices, which is applied to bearing components, shafts and bearings, agricultural machinery and implements, etc., can solve the problems of easy damage and short service life, reduce silt, enhance effective protection, and reduce crowding The effect of pressure

Inactive Publication Date: 2016-11-30
苏州哥特机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the device has only two sets of seals, which are easily damaged when used in the field for a long time, and the service life is not long

Method used

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  • Sealing device for hub bearing unit of agricultural machine
  • Sealing device for hub bearing unit of agricultural machine
  • Sealing device for hub bearing unit of agricultural machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as Figure 2-6 As shown, a sealing device for an agricultural machinery hub bearing unit includes an outer seal assembly 1 clamped on the inner wall of the outer ring of the oil seal cavity, a middle seal assembly 2 sleeved on the rotating shaft, and an inner seal assembly clamped in the outer seal assembly 1. The seal assembly 3, the inner seal assembly 3 is closer to the bearing unit than the middle seal assembly 2;

[0033] The outer seal assembly 1 includes a first elastic sealing body 11 that is in interference fit with the inner wall of the outer ring of the oil chamber, and a first skeleton 12 that supports the first elastic sealing body 11; There are several annular grooves 111 on the surface. The first frame 12 includes a top ring 121 parallel to the outer ring wall of the oil seal cavity. The end of the top ring 121 awa...

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Abstract

The invention discloses a sealing device for a hub bearing unit of an agricultural machine. The sealing device comprises an outer side sealing assembly clamped on the inner wall of an oil seal cavity, a middle sealing assembly sleeving a rotating shaft and an inner side sealing assembly clamped in the outer side sealing assembly. The inner side sealing assembly is closer to the bearing unit than the middle sealing assembly. The sealing device for the hub bearing unit of the agricultural machine is more reliable in sealing performance, so that the sealing reliability of the sealing device for the hub bearing unit of the agricultural machine under poor outdoor operation conditions is improved, hub unit failures caused by sealing failure are reduced, and production efficiency of the agricultural machine is improved.

Description

technical field [0001] The invention relates to a sealing device for an agricultural machine hub bearing unit. Background technique [0002] A representative known sealing device for agricultural machinery hub bearing unit such as figure 1 As shown, it is widely used in hub bearing units of agricultural machinery. The sealing device for the hub bearing unit of agricultural machinery includes a skeleton F and an elastic body III attached to its inner circular surface, and sealing lips a, b, c, d supported by it, another skeleton E and its elastic attachment IV and other Supported sealing lip e. In the sealing assembly, the sealing lips a, b, c, and d slide on the inner cylindrical surface and the inner wall of the framework E respectively to realize the sealing of foreign matter intrusion. The sealing lip e slides on the outer cylindrical surface of the framework to realize the internal leakage sealing. The sealing lip d has Take into account the auxiliary role. However, ...

Claims

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Application Information

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IPC IPC(8): F16C33/72
CPCF16C33/72F16C2310/00
Inventor 朱敏成陆卫峰蔡淩
Owner 苏州哥特机械有限公司
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