Bearing adjusting device for medium bridge speed reducer assembly and assembling method thereof

Abstract

The invention discloses a bearing adjusting device for a medium bridge speed reducer assembly and an assembling method of the bearing adjusting device. The bearing adjusting device comprises an adjusting ring located at the end of the outer ring of a bearing and a limiting flange located at the end of the inner ring of the bearing, an oil seal playing a sealing role is arranged between the adjusting ring and the limiting flange, an O-shaped ring installation groove and a thread section are arranged on the outer circumference of the adjusting ring, an O-shaped ring is arranged in the O-shaped ring installation groove, and the thread section coated with sealant is in matched connection with a thread hole in a speed reduction shell. When the adjusting ring pretightens and adjusts the bearing,the sealing performance of the bearing can be improved, and the limiting flange can axially position the bearing.

Description

technical field [0001] The present invention relates to a bearing adjusting device for a middle axle reducer assembly and an assembling method thereof. Background technique [0002] The bearing adjustment ring of the gear shaft in the traditional middle-axle reducer is M135x2 threaded structure, which is sealed by applying locking glue on the thread of the bearing adjustment ring. In order not to affect the sealing and locking effect of the locking glue, the bearing adjustment ring It cannot be retracted after tightening. There are specified requirements for the tightening torque of the bearing adjustment ring. If the torque is too small, the gear shaft will shake due to insufficient pre-tightening force; if the torque is too large, the input shaft of the middle axle and the through shaft of the middle axle will be blocked and cannot rotate relative to each other. . In addition, according to market feedback, the bearing adjustment ring has two disadvantages during the use ...

AI Technical Summary

Problems solved by technology

The tightening torque of the bearing adjustment ring has specified requirements. If the torque is too small, the gear shaft will shake due to insufficient pre-tightening force; if the torque is too large, the input shaft of the middle axle and the through shaft of the middle axle will be locked, and they will not be able to rotate relative to each other.

In addition, according to market feedback, the bearing adjustment ring has two disadvantages during the use of the whole vehicle: the sealing effect of the locking glue is not good, and the lubricating oil will leak out from the thread between the adjustment ring and the housing during use; The bearing adjustment ring with solid glue seal is difficult to disassemble and difficult to maintain

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