Pull type clutch release bearing capable of injecting grease for lubricating

Abstract

The invention relates to a pull type clutch release bearing capable of injecting grease for lubricating, which includes a release sleeve and a bearing outer ring, a ball and a bearing inner ring that are positioned on one side of the release sleeve, wherein a seal ring is arranged between the bearing outer ring and the bearing inner ring on the outer side of the ball; a support spring is arrangedbetween the bearing outer ring and the end surface of the release sleeve; a housing is fixed between the outer end surface of the bearing outer ring and the outer wall surface of the release sleeve; an annular groove is arranged on the inner side end surfaces of the bearing outer ring and the bearing inner ring; a convex ring in clearance fit with the annular groove is arranged on inner side end surface of the release sleeve; and a grease injecting hole communicated with the inside of the annular groove is formed in the release sleeve. By forming the grease injecting hole communicated with the interior of the release bearing in the release bearing, when the lubricating grease in the release bearing fails and flows away due to high temperature during the use of the release bearing, the lubricating grease can be timely replenished to the interior of the release bearing through the grease injecting hole, so as to retain the excellent lubricating performance of the bearing, and prolong the service life of the release bearing.

Description

technical field [0001] The invention relates to a pull-type clutch release bearing used on medium and heavy vehicles, in particular to a grease-lubricated pull-type clutch release bearing used on a mine truck. Background technique [0002] The release bearing of the pull clutch is often lubricated with grease. There is a certain amount of grease in the inner and outer raceways of the bearing, so that the release bearing has good lubricating performance, thereby suppressing the generation of high temperature. However, in the actual use process, the high temperature generated by the release bearing still exists, which leads to the failure of the release bearing, especially in the mining truck. The fundamental reason is that the domestic vehicles are generally overloaded, the road conditions in mining areas are poor, the vehicles are driving on multi-slope roads, the driver frequently disengages the clutch for a long time, slides downhill in neutral gear, climbs in a semi-linka...

AI Technical Summary

Problems solved by technology

However, in the actual use process, the release bearing generates high temperature, resulting in the failure of the release bearing still exists, especially in mining trucks

The fundamental reason is that the domestic vehicles are generally overloaded, the road conditions in mining areas are poor, the vehicles are driving on multi-slope roads, the driver frequently disengages the clutch for a long time, slides downhill in neutral gear, climbs in a semi-linkage method, and the clutch is half-clutched for a long time state, the two operation methods cause the internal temperature of the clutch assembly to rise sharply; at the same time, because the clutch is in the disengaged and semi-clutch state for a long time, the release bearing will rotate at a high speed for a long time under high load, resulting in an increase in the internal temperature of the release bearing

Under the action of high temperature both inside and outside, the grease inside the release bearing fails and loses, and the lubrication performance is lost, resulting in the release bearing burning and failure

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