CN202040214U

CN202040214U - Two-sided slope angular contact ball bearing

Info

Publication number: CN202040214U
Application number: CN2011200993270U
Authority: CN
Inventors: 李德亮; 何频; 孟淑娟; 侯立乾
Original assignee: Luoyang Run Huan Motor Bearings Co Ltd
Current assignee: Luoyang Run Huan Motor Bearings Co Ltd
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2011-11-16
Anticipated expiration: 2021-04-07

Abstract

The utility model relates to a two-sided slope angular contact ball bearing in the bearing field. The two-sided slope angular contact ball bearing comprises an inner ring, an outer ring, a retainer and a plurality of rolling bodies. The rolling bodies are uniformly arrayed between the inner ring and the outer ring by the retainer; pits used for the rolling of the rolling bodies are respectively arranged on the outer diameter surface of the inner ring and the inner diameter surface of the outer ring; and the outer diameter surface of the inner ring and the inner diameter surface of the outer ring are divided by the respective pits, the diameter surface at one side of the pit is designed to be the cylinder surface, and the diameter surface at the other side of the pit is designed to be the conic slope surface. The two-sided slope angular contact ball bearing can lower the noise of the bearing during the work and can effectively improve the limit rotation speed of the bearing.

Description

A kind of two-sided ramp angle contact ball bearing

[technical field]

The utility model relates to field of bearings, especially relates to a kind of two-sided ramp angle contact ball bearing.

[background technique]

Known, because the raceway of angular contact ball bearing Internal and external cycle can have relative displacement on horizontal axis,, and can under the limit speed of 800000ndm, work so angular contact ball bearing can bear radial load and axial load simultaneously; Because existing angular contact ball bearing need bear radial load and axial load simultaneously, add the influence that is subjected to self limit speed, so angular contact ball bearing is at work not only because of noise considerable influence working environment, and very easily influence its normal use because of frictional force ambassador bearing self-heating, simultaneously, very easily enter dust or other tiny pollutants between the outer ring of bearing and the inner ring, thereby the steel ball running between bearing outer ring and the inner ring is had some setbacks, and then cause the wearing and tearing of angular contact ball bearing, finally cause shortening the working life of bearing; In addition, because the limit speed of angular contact ball bearing only is confined in the 800000ndm at present, thereby can't apply it in the higher work of speed demand, promptly be difficult to the application of further widening angle contact ball bearing.

[summary of the invention]

In order to overcome the deficiency in the background technique, the utility model discloses a kind of two-sided ramp angle contact ball bearing, described bearing not only can reduce bearing noise at work, but also can effectively improve the limit speed of bearing.

In order to realize the foregoing invention purpose, the utility model by the following technical solutions:

A kind of two-sided ramp angle contact ball bearing, described bearing comprises inner ring, outer ring, retainer and a plurality of rolling element; Described a plurality of rolling element is arranged between inner ring and the outer ring equably by retainer; Be respectively equipped with the depression of rolling on the outer diametric plane of described inner ring and the aperture surface of outer ring for rolling element; Outer diametric plane of described inner ring and outer ring aperture surface are boundary with separately depression all, and depression diametric plane on one side is made as the cylndrical surface, and the diametric plane of depression another side is made as the tapered slope face; Cylndrical surface in the outer diametric plane of described inner ring is corresponding with the slope in the aperture surface of outer ring, and the perpendicular distance between the slope inner side edge of the cylndrical surface inner side edge of inner ring and outer ring is less than the perpendicular distance between the slope outer side of the cylndrical surface outer side of inner ring and outer ring; Slope in the outer diametric plane of described inner ring is corresponding with the cylndrical surface in the aperture surface of outer ring, and the perpendicular distance between the cylndrical surface inner side edge of the slope inner side edge of inner ring and outer ring is less than the perpendicular distance between the cylndrical surface outer side of the slope outer side of inner ring and outer ring.

Described two-sided ramp angle contact ball bearing, perpendicular distance between the slope inner side edge in the aperture surface of described inner ring and the outer diametric plane is greater than the perpendicular distance between the aperture surface of inner ring and the depression bottom on the inner ring, and the inner side edge of inner ring slope and the normal throw between the outer side are not more than 1/3rd of inner ring wall thickness.

Described two-sided ramp angle contact ball bearing, the outer diametric plane of described outer ring and the perpendicular distance between the slope inner side edge in the aperture surface be greater than the outer diametric plane of outer ring and the perpendicular distance between the depression bottom on the outer ring, and the inner side edge of outer ring slope and the normal throw between the outer side are not more than 1/3rd of outer ring wall thickness.

Described two-sided ramp angle contact ball bearing, described bearing two ends and between inner ring and outer ring, be separately installed with seal ring.

Owing to adopted technique scheme, the utlity model has following beneficial effect:

A kind of two-sided ramp angle contact ball bearing described in the utility model, by the outer diametric plane of inner ring and the aperture surface of outer ring are optimized design, not only alleviated the deadweight of bearing, the corresponding bearing noise at work that reduced, but also reduced the moment of torsion of bearing, make the limit speed of described bearing reach 2000000ndm, thereby effectively enlarged the application of angular contact ball bearing; In addition, described bearing can also seal ring hinders dust or other tiny pollutants enter bearing inside by setting up, thereby makes the more smooth and easy of rolling element running in the bearing, has effectively reduced angular contact ball bearing wearing and tearing at work.

[description of drawings]

Fig. 1 is the generalized section of bearing described in the utility model;

Fig. 2 is the generalized section of the another kind of structure of the utility model.

In the drawings: 1, inner ring; 2, outer ring; 3, retainer; 4, rolling element; 5, depression; 6, cylndrical surface; 7, slope; 8, seal ring.

[embodiment]

Can explain the utility model in more detail by the following examples, open the purpose of this utility model is intended to protect all changes and improvements in the utility model scope, and the utility model is not limited to the following examples:

1 described two-sided ramp angle contact ball bearing in conjunction with the accompanying drawings, described bearing comprises inner ring 1, outer ring 2, retainer 3 and a plurality of rolling element 4; Described a plurality of rolling element 4 is arranged between inner ring 1 and the outer ring 2 equably by retainer 3; Be respectively equipped with corresponding depression 5 on the outer diametric plane of described inner ring 1 and the aperture surface of outer ring 2 for rolling element 4 rollings; Described inner ring 1 outer diametric plane and outer ring 2 aperture surfaces are boundary with separately depression 5 all, inner ring 1 outer diametric plane and outer ring 2 aperture surfaces are positioned at 5 on one side the diametric planes that cave in separately are made as cylndrical surface 6, the diametric plane that inner ring 1 outer diametric plane and outer ring 2 aperture surfaces are positioned at 5 another sides that cave in separately is made as the slope 7 of taper; Cylndrical surface 6 in the described inner ring 1 outer diametric plane is corresponding with the slope 7 in 2 aperture surfaces of outer ring, and cylndrical surface 6 inner side edges in the inner ring 1 outer diametric plane and the perpendicular distance between slope 7 inner side edges in 2 aperture surfaces of outer ring are less than cylndrical surface 6 outer side in the inner ring 1 outer diametric plane and the perpendicular distance between slope 7 outer side in 2 aperture surfaces of outer ring; Slope 7 in the described inner ring 1 outer diametric plane is corresponding with the cylndrical surface 6 in 2 aperture surfaces of outer ring, and slope 7 inner side edges in the inner ring 1 outer diametric plane and the perpendicular distance between cylndrical surface 6 inner side edges in 2 aperture surfaces of outer ring are less than slope 7 outer side in the inner ring 1 outer diametric plane and the perpendicular distance between cylndrical surface 6 outer side in 2 aperture surfaces of outer ring, the i.e. deadweight that has alleviated described bearing by this design of offering slope, reduced the surface of contact of rolling element in the described bearing 4 and inner ring 1 and outer ring 2, thereby amplified working gap, the frictional force that has been subjected to when having reduced rolling element 4 actions, and then effectively reduced the vibrating noise in the bearing working, reduced moment of torsion, reach effective phenomenon of improving bearing heating, promote the purpose of bearing limit speed; Draw by test of many times, the limit speed of described bearing can reach 2000000ndm;

As required, perpendicular distance between slope 7 inner side edges in the aperture surface of described inner ring 1 and the outer diametric plane is greater than the perpendicular distance between the aperture surface of inner ring 1 and depression 5 bottoms on the inner ring 1, and the inner side edge of inner ring 1 slope 7 and the normal throw size between the outer side are not more than 1/3rd of inner ring 1 wall thickness dimension; In addition, perpendicular distance between the outer diametric plane of described outer ring 2 and slope 7 inner side edges in the aperture surface is greater than the perpendicular distance between the outer diametric plane of outer ring 2 and depression 5 bottoms on the outer ring 2, and the inner side edge of outer ring 2 slopes 7 and the normal throw size between the outer side are not more than 1/3rd of outer ring 2 wall thickness dimensions; In conjunction with the accompanying drawings 2, for hindering the inside that dust or other tiny pollutants enter described bearing, effectively reduce the described bearing degree of wear at work, can be at described bearing two ends, and be separately installed with seal ring 8 between inner ring 1 and outer ring 2, promptly the position, limit by diametric plane outside inner ring 1 or outer ring 2 aperture surfaces installs corresponding grooves and firmly blocks and put seal ring 8.

When implementing two-sided ramp angle contact ball bearing described in the utility model, only need described Bearing Installation just can be come into operation in corresponding position; In addition, described bearing can be selected fitting tight circle 8 according to working environment, selects to use thereby be beneficial to more.

Carefully not stating in the above content is prior art partly, does not state so run business into particular one.

Claims

1. two-sided ramp angle contact ball bearing, described bearing comprises inner ring (1), outer ring (2), retainer (3) and a plurality of rolling element (4); Described a plurality of rolling element (4) is arranged between inner ring (1) and outer ring (2) equably by retainer (3); Be respectively equipped with the depression (5) of rolling on the aperture surface of the outer diametric plane of described inner ring (1) and outer ring (2) for a plurality of rolling elements (4), it is characterized in that: outer diametric plane of described inner ring (1) and outer ring (2) aperture surface are boundary with separately depression (5) all, depression (5) diametric plane on one side is made as cylndrical surface (6), and the diametric plane of depression (5) another side is made as slope (7); Cylndrical surface (6) in the outer diametric plane of described inner ring (1) is corresponding with slope (7) in the aperture surface of outer ring (2), and the perpendicular distance between slope (7) inner side edge of cylndrical surface (6) inner side edge of inner ring (1) and outer ring (2) is less than the perpendicular distance between slope (7) outer side of cylndrical surface (6) outer side of inner ring (1) and outer ring (2); Slope (7) in the outer diametric plane of described inner ring (1) is corresponding with the cylndrical surface (6) in the aperture surface of outer ring (2), and the perpendicular distance between cylndrical surface (6) inner side edge of slope (7) inner side edge of inner ring (1) and outer ring (2) is less than the perpendicular distance between cylndrical surface (6) outer side of slope (7) outer side of inner ring (1) and outer ring (2).

2. two-sided ramp angle contact ball bearing according to claim 1, it is characterized in that: the perpendicular distance between the aperture surface of described inner ring (1) and slope (7) inner side edge in the outer diametric plane is greater than the perpendicular distance between the aperture surface of inner ring (1) and depression (5) bottom on the inner ring (1), and the inner side edge of inner ring (1) slope (7) and the normal throw between the outer side are not more than 1/3rd of inner ring (1) wall thickness.

3. two-sided ramp angle contact ball bearing according to claim 1, it is characterized in that: the perpendicular distance between the outer diametric plane of described outer ring (2) and slope (7) inner side edge in the aperture surface is greater than the perpendicular distance between the outer diametric plane of outer ring (2) and depression (5) bottom on outer ring (2), and the inner side edge of outer ring (2) slope (7) and the normal throw between the outer side are not more than 1/3rd of outer ring (2) wall thickness.

4. two-sided ramp angle contact ball bearing according to claim 1 is characterized in that: described bearing two ends and be positioned at inner ring (1) and outer ring (2) between be separately installed with seal ring (8).