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Sealed liquid lubricator

A liquid sealing and lubricating device technology, applied in transportation and packaging, tracked vehicles, motor vehicles, etc., can solve problems such as increased driving resistance, insufficient strength of thrust washers, and reduced service life

Inactive Publication Date: 2007-08-22
董明国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] 1. The strength of the thrust washer is insufficient, there are many seals, and the processing is difficult
[0018] 2. Sealed and lubricated crawlers are localized in application
[0019] 3. There is no thrust washer in the 190mm pitch crawler of the existing excavator. When the seal ring is worn and flattened, the seal will fail, the driving resistance will increase, and the service life will be reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] With reference to accompanying drawing 1, sealed lubricating track of the present invention is made up of elastic rubber ring 1, metal ring 2 and cone blind hole rubber plug 3. It involves chain link counterbore 4, pin shaft 5, pin sleeve 6, chain links 7, 8, 9, 10, center oil hole 11, through hole 12, oil storage chamber 13.

[0071] Manually fit the elastic rubber ring 1 on the outer surface of the metal ring 2, and press them into the counterbore 4 of the chain link together. At this time, there is a certain amount of interference fit between the outer surface of the rubber ring and the inner surface of the counterbore of the chain links 7 and 10, and the metal ring is suspended in the center of the counterbore. Accompanying drawing 4 is assembled with pin sleeve 6, and makes the left and right sleeve ends connect chain link split surface in one plane (last assembling shaft end connects chain link 18). Then the chain links 7, 10 and the chain links 8, 9 equipped wit...

Embodiment 2

[0076] Accompanying drawing 2 is double-pin shaft pinless center oil hole sealed lubricating track, which is another type of sealed lubricating track according to the present invention. It consists of an elastic rubber ring 1, a metal ring 2, and a cone blind hole rubber plug 3. Relate to double taper hole connecting plate 14, track pin shaft 5, track shoe 16, anti-loosening fastening nut 15, oil hole 11a (in track shoe).

[0077] The track shoe 16 is a single piece, and there are two pin holes in each track shoe 16. It should be pointed out that: when the two pin holes are processed, there should be multiple oil storage chambers on the middle surface, (omitted in the drawings) to Good for oil storage. This kind crawler track divides two kinds of assembling modes, as accompanying drawing 2 (a), 2 (b), be to be connected by double taper hole coupling plate 14 between the plate and the plate. Double taper hole connecting plate 14 is equivalent to driven gear, and driving gear ...

Embodiment 3

[0080] Accompanying drawing 5 is double-sealed roller type lubricating track, adopts pin shaft without center oil hole, the mode that oil storage chamber is in the roller, is another type of sealed lubricating track of the present invention. It consists of elastic rubber rings 1, 1a, metal rings 2, 2a, and cone blind hole rubber plug 3. Involving roller 20, needle roller bearing 33, pin shaft 5, pin sleeve 6, oil storage cavity 26,35, through hole 34, chain link counterbore 4, inner chain link 8, outer chain link 7.

[0081] In conjunction with embodiment, the description is as follows with reference to accompanying drawing 5: this kind of double sealing device, one is installed in the inside, and one is installed in the outside, namely the double sealing that is made up of two single sealing devices of the same effect. It is equivalent to adding a roller on the outer surface of the pin sleeve 6 in the accompanying drawing 1. The difference is that the load-bearing wheel of th...

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Abstract

The present invention relates to crawler type building machinery and conveyer technology, and is especially one kind of sealed liquid lubricator. The sealed liquid lubricator consists of elastic rubber ring, metal ring and conic rubber stopper with blind hole. It is mounted to counter bore in each crawler link, and the metal ring under the action of the elastic rubber ring reaches sealing, thrusting and stabilizing functions. The conic rubber stopper with blind hole seals the central oil hole of pin shaft in air balancing method. The oil cavity of the lubricated crawler may in different forms. The crawler with the sealed liquid lubricator has low running resistance, low power consumption, long service life and expanded application range.

Description

technical field [0001] The invention belongs to the technical field of crawler construction machinery and conveying transmission. Background technique [0002] Construction machinery crawlers can be divided into three types, the first type: dry type, without grease, the second type: dry seal, filled with grease, and the third type: sealed lubrication type, filled with liquid lubricating oil. [0003] Dry crawler: No grease is added, the end surface of the pin sleeve and the bottom surface of the counterbore of the track chain link are open, and the seal is removed without protection. Now it has gradually decreased, and spare parts are still produced and sold to a certain extent. [0004] Dry-sealed crawler track: a dust-proof ring is installed at both ends of each pin sleeve. During production, grease is manually applied between the shaft sleeves. Due to the poor fluidity of the grease, the lubrication can only be partial and temporary. Especially under low temperature cond...

Claims

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Application Information

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IPC IPC(8): B62D55/092
Inventor 董明国
Owner 董明国
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