CN201836213U

CN201836213U - Thrust articulated bearing race

Info

Publication number: CN201836213U
Application number: CN2010206032060U
Authority: CN
Inventors: 王迪; 梅建洛
Original assignee: LUOYANG SBI SPECIAL BEARING CO Ltd
Current assignee: LUOYANG SBI SPECIAL BEARING CO Ltd
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2011-05-18
Anticipated expiration: 2020-11-12

Abstract

The utility model provides a thrust articulated bearing race, which relates to the field of thrust articulated bearings, the thrust articulated bearing race is an annular ring body, an arc-shaped raceway surface is arranged on the inner circumferential surface of the ring body, the raceway surface is extended to the inner diameter of the ring body from the upper end face of the ring body, a hardened layer formed by the hammering of a high-frequency hammer is arranged on the raceway surface, and the thickness of the hardened layer is 1.0-2.0mm; and the surface roughness (Ra) of the hardened layer of the thrust articulated bearing race is less than or equal to 0.1mum, the structure of the thrust articulated bearing race is simple, the raceway surface is reasonably arranged, problems of low rotational accuracy and easy abrasion of the bearing can be solved well, and the thrust articulated bearing race can bear the axial load well, meanwhile, the service life of the bearing can be prolonged.

Description

A kind of thrust articulated bearing seat ring

Technical field

The utility model relates to a kind of thrust articulated bearing, specifically a kind of thrust articulated bearing seat ring.

Background technique

At present, in the existing thrust articulated bearing processing, because the precision of bearing is mainly reflected on the raceway, particularly the roughness on the surface of raceway and accuracy to shape are the major criterions of weighing bearing accuracy and quality.Quenching processing technology behind the finish turning that China adopts at present, because the quenching phenomenon easily forms cold crack, and, quenching is used proper to thickness, the less part of diameter, for the bigger part of diameter, the depth of quenching is not enough, and therefore the bearing race after the processing is fragile.And thrust articulated bearing is owing to unreasonable structure in the prior art, and the set-up mode of its roller surface and roughness all do not reach requirement, therefore causes the lower and quick abrasion of this kind bearing accuracy, increases the economic burden of enterprise virtually.

The model utility content

The purpose of this utility model provides a kind of thrust articulated bearing seat ring, and it is simple in structure, and when improving the bearing running accuracy, improved more than 30% its working life.

The utility model is for realizing the model utility purpose, the technological scheme that adopts is: a kind of thrust articulated bearing blowout patche, be annular circle body, inner circumferential surface at circle body is provided with the arcuate groove face, roller surface extends to internal diameter from the upper-end surface of circle body, roller surface is provided with the hardened layer that the hammering of high frequency tup forms, and the thickness of this hardened layer is 1.0～2.0mm.

Hardened layer surface roughness Ra value described in the utility model≤0.1 μ m.

The beneficial effects of the utility model are:

1, the inner circumferential surface of this thrust articulated bearing seat ring is provided with the arcuate groove face that is formed by the hammering of high frequency tup, and this kind structure has better guaranteed the running accuracy of this kind bearing, improves bearing working life.

2, this roller surface forms by the hammering of high frequency tup, therefore, roller surface is formed one deck hardened layer, adopt this technology can make the metal structure on raceway top layer fine and close more, the raceway roughness is promoted 3, and roughness Ra value can reach 0.1 μ m more than the grade, even reaches below the 0.1 μ m, the micro-penetration hardness of raceway face is improved more than 20%, improved the contact fatigue property of raceway.Thereby improved its bearing capacity more than 10%, bearing life improves more than 30%.

Description of drawings

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

Fig. 2 is the structural representation of usage mode of the present utility model;

Mark among the figure: 1, circle body, 2, roller surface, 3, hardened layer, 4, seat ring, 5, blowout patche.

Embodiment

As seen from the figure, a kind of thrust articulated bearing seat ring, inner circumferential surface at the circle body 1 of annular is provided with arcuate groove face 2, and the radian that extends to the roller surface 2 of internal diameter equates, roller surface 2 extends to internal diameter from the upper-end surface of circle body 1, roller surface 2 is provided with the hardened layer 3 that the hammering of high frequency tup forms, and the thickness of this hardened layer 3 is 1.0～2.0mm, and the preferential thickness of selecting is 1.5～2.0mm.

The surface roughness Ra value of hardened layer 3 described in the utility model≤0.1 μ m.

Fig. 2 is the structural representation of usage mode of the present utility model, has constituted thrust articulated bearing by blowout patche 5 and seat ring 4.

Roller surface described in the utility model is formed by the hammering of high frequency tup, is: the high frequency tup is the vibratory tool head, and this vibratory tool head carries out the hammering of ultra-high frequency to race way greater than 30,000 times vibration frequency with per second.The vibratory tool head is with the surface of the vibration hammering bearing race of high frequency, make the top layer metal structure of race way produce the plastic deformation of trace, it is smooth that the waviness of workpiece surface tends to further, thereby reach the surface quality of minute surface, this technology is to be media becomes radial spread in the metal surface a kind of quantum with the finish, its effect is to make the electronic shell of metallic material atom absorb this quantum, the electronic shell activity is more active, atomic nucleus is relative with the electronic shell combination force to diminish thereby cause, the combination force of atom and atom diminishes, metallic material plasticity under the effect of this quantum changes, and ductility improves.Adding frequency in addition again is the high frequency vibration of 30KHz, when vibration transducer detects the dither of amplitude 3-5 micron, promptly this state is an optimum Working, the micro-penetration hardness of raceway face improves more than 20% before the processing simultaneously, the roughness that the roughness ratio of raceway generally grinds out improves 3 more than the grade, roughness Ra value can reach 0.1 μ m, even reaches below the 0.1 μ m, and the more traditional abrasive process of work efficiency improves more than 50%.

The utility model, it is simple in structure, and roller surface is provided with rationally, has better solved difficult problems such as the bearing running accuracy is not high and easy to wear, can better bear axial load.

Claims

1. thrust articulated bearing seat ring, it is characterized in that: be the circle body of annular, inner circumferential surface at circle body (1) is provided with arcuate groove face (2), roller surface (2) extends to internal diameter from the upper-end surface of circle body (1), roller surface (2) is provided with the hardened layer (3) that the hammering of high frequency tup forms, and the thickness of hardened layer (3) is 1.0～2.0mm.

2. a kind of thrust articulated bearing seat ring according to claim 1 is characterized in that: described hardened layer (3) surface roughness Ra value≤0.1 μ m.