Lubricating structure for bevel gear bearing

Abstract

The invention relates to a bearing lubricating structure, and discloses a lubricating structure for a bevel gear bearing, which comprises a bevel gear shaft; the bevel gear shaft is provided with a bearing; the bearing comprises a bearing outer ring, a front bearing inner ring and a rear bearing inner ring; a front raceway is formed between the bearing outer ring and the front bearing inner ring, and a rear raceway is formed between the bearing outer ring and the rear bearing inner ring; an oil slinger is installed on the bevel gear shaft and arranged between the front bearing inner ring and the rear bearing inner ring; a negative suction hole and an oil collecting groove communicated with the negative suction hole are arranged in the bevel gear shaft; a plurality of oil conveying holes are arranged on the circumferential side wall of the oil collecting groove; a front oil pumping hole and a rear oil pumping hole which are both communicated with the oil conveying holes are arranged on the oil slinger; and the front oil pumping hole faces the front raceway, and the rear oil pumping hole faces the rear raceway. Lubricating oil in a gear box is led into a bearing cavity through the negative suction hole and a negative suction gear shaft to achieve lubrication, the bearing outer ring and a shell runner are simplified, and meanwhile the problem of poor lubrication caused by the fact that a front bearing is located at a high position is avoided.

Description

technical field [0001] The invention relates to a bearing lubricating structure, in particular to a lubricating structure for bevel gear bearings. Background technique [0002] The main bevel gear bearing of the main reducer adopts splash lubrication, that is, the gear box is used as an oil tank, and an oil collecting groove, an oil inlet hole and an oil return hole are arranged on the reducer shell, and the lubricating oil is thrown in through the oil passage through the rotation of the main bevel gear. Lubrication is carried out in the bearing cavity, and the lubricating oil flows from the small end to the large end under the action of the pump oil generated when the tapered roller rotates, and flows back to the gearbox through the oil return hole to realize the lubrication of the bearing and the circulation of the lubricating oil. [0003] However, the front bearing of the main bevel gear is far away from the oil surface and the gear, and the rear bearing is separated, so...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantage of poor lubricating effect of bevel gear bearings in the prior art, and provides a lubricating structure for bevel gear bearings

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