A cage for cylindrical roller bearings

Abstract

The invention discloses a cage of a cylindrical roller bearing. The cage is in the form of a ring as a whole, and a plurality of pockets for accommodating cylindrical rollers are evenly formed on the cage. The two matching walls are planes parallel to each other; the cage is located on the inner and outer circumferences of the pocket to form an inner ring wall and an outer ring wall respectively, the inner ring wall is flush with the end face of the pocket hole, and the outer ring wall is higher than the end face of the pocket hole; The two ends of the cage are located inside the outer ring wall to form a concave ring groove, and a groove with a triangular end surface is formed at a position between two adjacent pockets in one of the concave ring grooves; the side of the pocket close to the groove The two ends are formed with a second limiting surface; the two ends of the pocket which are different from the second limiting surface are formed with a first limiting surface. The two walls of the pockets and the cylindrical rollers are parallel to each other, and the rollers form a line contact with the working plane of the cage to achieve good heat dissipation and uniform lubrication, reduce friction, and ensure low vibration and quietness.

Description

technical field [0001] The invention belongs to the field of bearing structures, and in particular relates to a cylindrical roller combined bearing capable of bearing large combined radial and axial loads, which is mainly used in construction machinery such as reducers. Background technique [0002] A bearing is a component used in a rotating mechanism to support, reduce friction and bear loads. This product is mainly designed for construction machinery such as reducers. Because it can withstand large radial loads and axial loads, is easy to assemble and disassemble, and has a strong bearing capacity, it is widely used in construction machinery such as reducers. At present, the domestic thrust part cage generally adopts the spherical structure of the contact surface, see Figure 5 , Figure 6 , the cage of this structure has the following disadvantages: [0003] 1. Since the contact surface is a round surface, the envelope surface of the cage to the roller is larger when t...

AI Technical Summary

Problems solved by technology

[0003] 1. Since the contact surface is a round surface, the envelope surface of the cage to the roller is larger when the bearing is working, and there are more contacts, resulting in large friction, low speed, and easy wear;

[0004] 2. The surface precision is high and difficult to process;

[0005] 3. There is no annular groove on the end face of the cage beam, which makes it inconvenient to assemble and disassemble the rollers and the circulation of lubricating oil is not smooth

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