CN205117987U

CN205117987U - Roller bearing

Info

Publication number: CN205117987U
Application number: CN201520991085.4U
Authority: CN
Inventors: 张凯
Original assignee: XINCHANG COUNTY LILIHONG BEARING Co Ltd
Current assignee: XINCHANG COUNTY LILIHONG BEARING Co Ltd
Priority date: 2015-12-03
Filing date: 2015-12-03
Publication date: 2016-03-30
Anticipated expiration: 2025-12-03

Abstract

The utility model discloses a roller bearing, including bearing inner race, bearing inner race, its characterized in that: install the roller between bearing inner race and the bearing inner race, the roller is rolled by hollow rollers, elastomer and hollow set to be formed, the elastomer fills the inside middle hollow position at the roller, it has convex convexity for the surface to roll the cover, roll the cover and inlay the surface at the roller. The utility model has the advantages of reasonable design, through adopting by hollow rollers, elastomer and the hollow set roller structure of forming of rolling, reduce the bending stress of rolling element inner wall, improve the ability that the anti flexural fatigue of rolling element destroyed, roll and set adopt the nickel base alloys material to make the structure that the surface has convex convexity, can be fine reduce the production that edge stress concentrated, reduce near the appearance of the roller tip tired spot corrosion in to improve the bearing capacity and the life of bearing.

Description

A kind of roller bearing

Technical field

The utility model belongs to roller bearing technical field, is specifically related to a kind of roller bearing.

Background technique

Bearing is that mechanical industry uses extensively, require strict auxiliary equipment and basic part, the joint of machinery is called by people, because using scope is extensive, determine diversity and the complexity of bearing species, wherein roller bearing is wider in application in machine equipments, the rolling element of traditional roller bearing is generally solid cylinder rolling element, contact fatigue failure is the principal mode that roller bearing lost efficacy, existing market market also there is hollow cylindrical roller bearing and planted elastic composite roller bearing, utilize the resiliently deformable of Hollow Roller to increase the area of contact of rolling element and bearing enclose, reduce contact stress, improve the contact fatigue strength of bearing, serve certain effect, but ubiquitous problem easily occurs fatigue equivalent near roller end, most subsurface fatigue flake is just using these microscopic cracks as fatigue crack source, expansion formation is peeled off, finally cause the inefficacy of rolling element.

Model utility content

For problems of the prior art, the purpose of this utility model is to provide a kind of roller bearing.

The utility model is realized by the following technical programs: described a kind of roller bearing, comprise bearing outer ring, bearing inner race, it is characterized in that: between described bearing outer ring and bearing inner race, roller is installed, described roller is made up of hollow rollers, elastomer and hollow roll sleeve, described elastomer is filled in the bosom hollow part of roller, described roll sleeve be outer surface with circular arc convexity, described roll sleeve is embedded in the outer surface of described roller.

Described a kind of roller bearing, is characterized in that described elastomer is the solid cylindrical structure that polytetrafluoroethylmaterial material is made.

Described a kind of roller bearing, is characterized in that described roll sleeve is the jacket casing structure that nickel-bass alloy material is made, and adopts hot jacket to be embedded in the outer surface of roller.

Described a kind of roller bearing, is characterized in that the two ends of described roller outer wall are provided with restraining groove.

Compared with prior art, the beneficial effects of the utility model are: reasonable in design, by adopting the roller structure be made up of hollow rollers, elastomer and hollow roll sleeve, reduce the flexural stress of rolling element inwall, improve the ability of the counter-bending fatigue ruption of rolling element, roll sleeve adopts nickel-bass alloy material to make the structure of surface with circular arc convexity, the generation that edge stress is concentrated can well be reduced, reduce the appearance of fatigue equivalent near roller end, thus improve bearing capacity and the working life of bearing.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of roller

In figure: 1-bearing outer ring, 2-bearing inner race, 3-roller, 4-roller, 5-elastomer, 6-roll sleeve, 7-restraining groove.

Embodiment

Below in conjunction with Figure of description, the utility model is described in further detail, and provides embodiment.

As Fig. 1, shown in 2, a kind of roller bearing of the utility model, comprise bearing outer ring 1, bearing inner race 2, and between bearing outer ring 1 and bearing inner race 2, roller 3 is installed, in order to reduce the flexural stress of rolling element inwall, improve the ability of the counter-bending fatigue ruption of rolling element, reduce the generation that edge stress is concentrated, reduce the appearance of fatigue equivalent near roller end, roller 3 adopts by hollow rollers 4, the structure that elastomer 5 and hollow roll sleeve 6 form, the solid cylindrical structure that elastomer 5 is made for polytetrafluoroethylmaterial material, elastomer 5 is filled in the bosom hollow part of roller 4, the jacket casing structure that roll sleeve 6 is made for nickel-bass alloy material, the outer surface of roll sleeve 6 is with circular arc convexity, described roll sleeve 6 adopts hot jacket to be embedded in the outer surface of roller 4.

Conveniently assemble and fixing roll sleeve 6, be preferably provided with restraining groove 7 at the two ends of roller 4 outer wall.

The utility model reasonable in design, by adopting the roller structure be made up of hollow rollers 4, elastomer 5 and hollow roll sleeve 6, to reduce the flexural stress of rolling element inwall, improve the ability of the counter-bending fatigue ruption of rolling element, roll sleeve 6 adopts nickel-bass alloy material to make the structure of surface with circular arc convexity, the generation that edge stress is concentrated can well be reduced, reduce the appearance of fatigue equivalent near roller end, thus improve bearing capacity and the working life of bearing.

Claims

1. a roller bearing, comprise bearing outer ring (1), bearing inner race (2), it is characterized in that: roller (3) is installed between described bearing outer ring (1) and bearing inner race (2), described roller (3) is made up of hollow rollers (4), elastomer (5) and hollow roll sleeve (6), described elastomer (5) is filled in the bosom hollow part of roller (4), described roll sleeve (6) is for outer surface is with circular arc convexity, and described roll sleeve (6) is embedded in the outer surface of described roller (4).

2. a kind of roller bearing according to claim 1, is characterized in that the solid cylindrical structure that described elastomer (5) is made for polytetrafluoroethylmaterial material.

3. a kind of roller bearing according to claim 1, is characterized in that the jacket casing structure that described roll sleeve (6) is made for nickel-bass alloy material, adopts hot jacket to be embedded in the outer surface of roller (4).

4. a kind of roller bearing according to claim 1, is characterized in that the two ends of described roller (4) outer wall are provided with restraining groove (7).