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Seal for an endless track

A crawler and bushing technology, which is applied in the directions of crawler vehicles, engine seals, engine components, etc., can solve the problems of shortened seal life and small wear amount.

Inactive Publication Date: 2004-01-14
TOPY INDUSTRIES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] ③Because the amount of wear (abrasion generation) of the contact surface of the M-type seal with the bushing is less than the thickness of the footed root 19 on the side in contact with the bushing of the M-type seal, the amount of wear is reduced and the life of the seal is also shortened.

Method used

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  • Seal for an endless track
  • Seal for an endless track
  • Seal for an endless track

Examples

Experimental program
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Embodiment Construction

[0027] refer to Figure 1-Figure 4 ( Figure 4 Common to the conventional crawler belt), the seal for the crawler belt according to the embodiment of the present invention will be described. exist Figure 1-Figure 3 In each figure, (A) shows the crawler belt seal 1 of this invention, and (B) shows the conventional M type seal 14 for comparison.

[0028] The crawler belt seal (hereinafter simply referred to as the seal) 1 according to the embodiment of the present invention is an annular seal without slits in the circumferential direction, and is installed between the bushing 11 of the crawler belt 10 and the counterweight hole bottom surface 13 of the link 12 . The axial center of the seal 1 and the axial center of the bushing 11 are approximately on the same straight line. On the seal 1, a surface pressure is applied from the bush 11 in the direction of the bush axis.

[0029] The material of the track seal 1 is generally synthetic rubber such as urethane rubber or vulcani...

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Abstract

Provided is a seal for a crawler, wherein a contact surface between the seal and a bush has almost equal contact pressure to suppress the lopsided wear of the seal and cause almost no entry of sediment in the contact surface between the seal and bush and a wear allowance of the contact surface between the seal and bush is larger than that of a conventional M-type seal. (1) The seal 1 for the crawler has a cross section almost righ-and-left symmetrical with a sectional center line of the seal parallel to the axial direction of the bush, as a center. (2) The seal has an elastic portion 3 in a X-shaped cross section, a protruded portion 8 extending from the crossing of both legs of a X-shape to a bush side beyond a face connecting the bush-side ends of both legs of the X-shape, and the contact surface 9 with the bush formed at the bush-side end face of the protruded portion. (3) A portion between both legs of the X-shape on the bush side beyond the crossing 6 of both legs of the X-shape is filled with a sealing material.

Description

technical field [0001] The present invention relates to seals for track tracks. technical background [0002] In Track 10, as in Figure 4 As shown, between the bushing 11 and the bottom surface 13 of the counterweight hole of the chain ring 12, a track seal 14 (hereinafter referred to as the seal) is installed, and between the pin 15 and the bushing 11 to prevent moisture or sand from entering The gap 16 also prevents leakage of the lubricating oil filled in the gap between the pin 15 and the bush 11 . [0003] Conventionally, as the seal 14 of the crawler belt 10, such as Figure 5 The section shown is an M-shaped seal (hereinafter referred to as M-shaped seal). Therefore, the M-type seal is to make the M shape lie horizontally, and is installed between the bush 11 and the bottom surface 13 of the counterweight hole of the chain ring 12, and bears surface pressure in the direction of the bush axis. [0004] However, the M-type seal has the following problems. [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D55/088F16J15/34
CPCF16J15/3456B62D55/0887B62D55/088
Inventor 高桥健一大原正树栗原秋芳大村诚司安藤典行今野高志村木弘昌村松晃田中俊介鸟山刚司
Owner TOPY INDUSTRIES
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