Chain seals for tracked vehicle tracks

Abstract

The invention relates to a chain sealing ring for tracked vehicle tracks, which is provided with a through hole for inserting the track pin of the tracked vehicle. In a chain seal ring for a tracked vehicle track that prevents the entry of foreign matter, the chain seal ring is equipped with two sides from the side provided with the through hole at each end portion that contacts the track bushing and the bottom surface of the chain counterbore. An inclined surface extending in the axial direction toward the outer peripheral surface of the track bush protrudes at a predetermined position on the inner peripheral surface of the through hole inserted into the track pin to form an annular protrusion at a certain height. Even if the chain sealing ring for tracked vehicle track of the present invention is installed on the chain and driven, it will not cause the sealing ring to be deformed under pressure, thereby preventing the entry of lubricating oil and foreign matter, reducing the cost related to the service life of the equipment, and the crawler pin It is firmly inserted into the chain without sticking lubricating oil to ensure that it does not come off.

Description

technical field [0001] The present invention relates to a chain sealing ring for a tracked vehicle track, in particular to a chain sealing ring for a tracked vehicle track characterized by the following contents. Background technique [0002] Usually, such as Figure 9 As shown, in the track 10, a sealing ring 14 for the track (hereinafter referred to as the sealing ring) is installed between the bushing 11 and the bottom surface 13 of the counterbore of the chain 12 to prevent water or sand from passing through the gap between the track pin 15 and the bushing 11. 16 to prevent leakage of lubricating oil filled into the gap between track pin 15 and bushing 11. [0003] In the traditional technology, the track sealing ring 14 uses a sealing ring with an M-shaped cross section (hereinafter referred to as an M-shaped sealing ring). In addition, the M-shaped sealing ring is placed on the side and the M-shaped is installed between the bushing and the bottom surface of the counte...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned M-shaped seal ring, firstly, the surface pressure of the contact surface between the seal ring and the bushing is unbalanced, and as a result, the part with high surface pressure is worn first, and the service life of the seal ring is shortened due to such partial wear. ;Secondly, when the seal ring is installed on the track, the lip of the seal ring drops, and the contact surface of the seal ring and the bushing is easy to enter the sand due to the gap in the lip

When sand enters the gap of the contact surface due to the appearance of the lip and wears the sealing ring, the lip will further drop, and the surface pressure of the contact surface will be further unbalanced, resulting in local wear and shortening the life of the sealing ring; thirdly, with M The wear value of the contact surface between the bushings of the M-shaped seal ring is lower than the thickness of the connecting part of the pillar at the end that is in contact with the bush of the M-shaped seal ring, the wear value is low, and the service life of the seal ring is shortened

[0005] In addition, when the track pin 15 is inserted into the chain 12, more lubricating oil will stick

When installed on the track used for the track, the track pin 15 will fall off the chain 12 after long-term use

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