Novel agricultural machinery roller bearing

Abstract

The invention provides a novel agricultural machinery roller bearing, belongs to the technical field of agricultural machinery accessories, and solves the problem that a bearing is oiled and disassembled difficultly. The novel agricultural machinery roller bearing comprises a bearing inner ring, a bearing outer ring and an annular raceway arranged between the bearing inner ring and the bearing outer ring, wherein cylindrical rollers are arranged in the annular raceway; a shaft hole is formed in the center of the bearing inner ring; an annular projection is arranged on the end surface of one end of the bearing inner ring; at least one screw hole is formed in the projection in the radial direction; a bolt is in screwed connection to the inside of each screw hole; a plurality of oil filling holes are formed in the bearing inner ring; one ends of the oil filling holes communicate with the insides of the screw holes; an oil duct is formed between the other end of each oil filling hole and the annular raceway in a penetrating manner; one ends of the oil ducts are propped against the outer sides of the rollers; the oil filling holes communicate with one another through an annular hole which is formed in the bearing inner ring and is coaxial with the bearing inner ring; and outer threads are arranged on the outer peripheral surface of the projection. Compared with the traditional close fit between a shaft and a shaft hole, the connection is tighter, the oil filling effect is better, and the novel agricultural machinery roller bearing is convenient to disassemble.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery accessories and relates to a novel agricultural machinery roller bearing. Background technique [0002] Bearings are components that fix and reduce the friction coefficient of loads during mechanical transmission. It can also be said that when other parts move relative to each other on the shaft, it is used to reduce the friction coefficient in the process of power transmission and keep the center of the shaft fixed. Bearings are an important part of modern mechanical equipment. [0003] Lubricating oil for traditional bearings is added to the bearing through the oil nozzle on the bearing housing. When adding oil, it is difficult to fill the ball between the inner ring of the bearing and the outer ring of the bearing. It cannot reach the ball, which not only causes waste, but also easily causes bearing damage due to insufficient lubricating oil. Moreover, the current bearing disa...

AI Technical Summary

Problems solved by technology

[0003] Traditional bearings add lubricating oil to the bearing through the oil nozzle on the bearing housing. When adding oil, it must be added to the bearing inner ring and bearing outer ring The inside of the balls between them is more difficult, and the lubricating oil will flow around and cannot reach the balls, which will not only cause waste, but also easily cause bearing damage due to insufficient lubricating oil

Moreover, the current bearing disassembly methods mainly include knocking method, pushing method and thermal disassembly method. Due to the lack of support points, it is only possible to temporarily find a support point on the bearing for disassembly during disassembly. Therefore, the above methods will affect the bearing. Cause a certain amount of damage; in addition, if the shaft and the shaft hole are not tightly fixed, it is easy to loosen and affect the use effect

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