CN201593556U

CN201593556U - Roller bearing

Info

Publication number: CN201593556U
Application number: CN2009202766700U
Authority: CN
Inventors: 张镝; 张波; 仲志丹; 王忠伟; 赵建光
Original assignee: LUOYANG TIEMUKEN BEARING CO Ltd
Current assignee: LUOYANG TIEMUKEN BEARING CO Ltd
Priority date: 2009-12-09
Filing date: 2009-12-09
Publication date: 2010-09-29
Anticipated expiration: 2019-12-09

Abstract

A roller bearing relates to a roller bearing structure, and is characterized in that an external concave roller raceway (9) is arranged in the middle of the inner side of an outer ring (2), two sides of the external concave roller raceway (9) are respectively provided with a transitional outer ring plane (8), an internal concave roller raceway (11) corresponding to the external concave roller raceway (9) is arranged on the outer surface of an inner ring (4), inner ring planes (12) are respectively arranged from two sides of the internal concave roller raceway (11) of the inner ring (4) to the periphery of the inner ring (4), the cylindrical surface of each roller (1) is thin at two ends and thick in the middle, and the rollers (1) are arranged between the internal concave roller raceway (11) and the external concave roller raceway (9). By aid of the technical scheme of keeping arc-shaped surfaces of the rollers clinging to the internal concave roller raceway and the external concave roller raceway, the original linear contact or point contact is changed into surface contact, and then radial load capacity of the roller bearing is strengthened effectively.

Description

A kind of roller bearing

[technical field]

The utility model relates to a kind of roller bearing structure, especially relates to the roller bearing that a kind of effective reduction axial play is sowed discord the crack.

[background technique]

Known roller bearing can reach and realizes extraordinary fineness and rigidity through pretension, and the rolling element of roller bearing is the radial antifriction bearing of cylindrical roller.Cylindrical roller and raceway are line contact bearing.Load carrying capacity is big, mainly bears radial load.Rolling element and the friction of lasso rib are little, are suitable for high speed rotating.Present roller bearing is the separable structure in inner ring, outer ring.Its inner ring and outer ring can relatively move to axial, use so can be used as the free end bearing.Any side in inner ring and outer ring has rib, and opposite side is provided with lasso, can bear a direction axial load to a certain degree.For above-mentioned reasons, the just incompatible application of special occasions that requires to have certain radial load and maximized minimizing axial displacement of present roller bearing.

[summary of the invention]

In order to overcome the deficiency in the background technique, the utility model discloses a kind of roller bearing, arcuate surface and the sunken inside roller slideway, outward cave in technological scheme that roller slideway fit of described roller bearing by making roller, changing original line contact or some contact is that face contacts, and has increased the radial load ability of roller bearing effectively.

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

A kind of roller bearing comprises outer ring, inner ring, roller, fluorine rubber seal assembly and retainer; Depression roller slideway outside the inner side surface middle part of outer ring is provided with, the both sides of described outer depression roller slideway are respectively equipped with plane, transition outer ring; The exterior face of described inner ring is provided with the sunken inside roller slideway of corresponding outer depression roller slideway, and sunken inside roller slideway both sides to the inner ring outer rim of inner ring is respectively equipped with the inner ring plane; The damaged surface of roller is the slightly thick shape radian setting of two ends detail portion; Described roller is arranged between sunken inside roller slideway and the outer depression roller slideway; Wherein the damaged surface radian of roller is consistent with the radian of sunken inside roller slideway and outer depression roller slideway.

Described roller bearing, the outer ring inner face in the outside on plane, two transition outer rings is respectively equipped with a side trench, opposite side groove in the outer ring.

Described roller bearing, the wherein spring lock ring of a side trench clamping band opening.

Described roller bearing, described opposite side groove clamping fluorine rubber seal assembly.

Described roller bearing is provided with the reinforcing steel ring in the inboard of fluorine rubber seal assembly.

Because adopt technique scheme, the beneficial effect that the utlity model has is:

Roller bearing described in the utility model, arcuate surface by making roller and sunken inside roller slideway, the technological scheme that the roller slideway fits that caves in outward, changing original line contact or some contact is that face contacts, increased the radial load ability of roller bearing effectively, and by sunken inside roller slideway, the cave in restriction of roller slideway outward, overcome the axial displacement difficult problem of roller bearing, made roller bearing described in the utility model be adapted at the place use that radial load is had relatively high expectations.

[description of drawings]

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

Fig. 2 is an outer ring structure schematic representation of the present utility model;

Among the figure: 1, roller; 2, outer ring; 3, retainer; 4, inner ring; 5, fluorine rubber seal assembly; 6, reinforce steel ring; 7, a side trench; 8, plane, outer ring; 9, the roller slideway that caves in outward; 10, opposite side groove; 11, sunken inside roller slideway; 12, inner ring plane.

[embodiment]

With reference to the following examples, can explain the utility model in more detail; But should be noted that the utility model is not limited to following embodiment.

At the roller bearing described in Fig. 1 or 2, comprise outer ring 2, inner ring 4, roller 1, fluorine rubber seal assembly 5 and retainer 3; Depression roller slideway 9 outside the inner side surface middle part of outer ring 2 is provided with, the both sides of described outer depression roller slideway 9 are respectively equipped with plane, transition outer ring 8; The exterior face of described inner ring 4 is provided with the sunken inside roller slideway 11 of corresponding outer depression roller slideway 9, and sunken inside roller slideway 11 both sides to inner ring 4 outer rims of inner ring 4 are respectively equipped with inner ring plane 12; The damaged surface of roller 1 is the slightly thick shape radian setting of two ends detail portion; Described roller 1 is arranged between sunken inside roller slideway 11 and the outer depression roller slideway 9; Wherein the damaged surface radian of roller 1 is consistent with the radian of sunken inside roller slideway 11 and outer depression roller slideway 9.

Described roller bearing, outer ring 2 inner faces in the outside on plane, 2 liang of transition outer rings 8 are respectively equipped with a side trench 7, opposite side groove 10 in the outer ring; The spring lock ring 3 of a side trench 7 clamping band openings wherein; Opposite side groove 10 clamping fluorine rubber seal assemblies 5; Be provided with reinforcing steel ring 6 in the inboard of fluorine rubber seal assembly 5.

Implement roller bearing described in the utility model, curved and with sunken inside roller slideway 11, the roller slideway 9 that caves in is in identical radian outward by the cylinder that makes roller 1, in changing original roller 1 and contacting, the line contact of external slideway or some contact are the face contact, increased the radial load ability of roller bearing effectively, and by sunken inside roller slideway 11, the cave in restriction of 9 pairs of rollers 1 of roller slideway outward, overcome the axial displacement difficult problem of roller bearing, made roller bearing described in the utility model be adapted at the place use that radial load is had relatively high expectations.

Claims

1. roller bearing, comprise outer ring (2), inner ring (4), roller (1), fluorine rubber seal assembly (5) and retainer (3), it is characterized in that: depression roller slideway (9) outside the inner side surface middle part of outer ring (2) is provided with, the both sides of described outer depression roller slideway (9) are respectively equipped with plane, transition outer ring (8); The exterior face of described inner ring (4) is provided with the sunken inside roller slideway (11) of corresponding outer depression roller slideway (9), and sunken inside roller slideway (11) both sides of inner ring (4) to inner ring (4) outer rim is respectively equipped with inner ring plane (12); The damaged surface of roller (1) is the slightly thick shape radian setting of two ends detail portion; Described roller (1) is arranged between sunken inside roller slideway (11) and the outer depression roller slideway (9); Wherein the damaged surface radian of roller (1) is consistent with the radian of sunken inside roller slideway (11) and outer depression roller slideway (9).

2. roller bearing according to claim 1 is characterized in that: outer ring (2) inner face in the outside on plane, (2) two transition outer ring (8) is respectively equipped with a side trench (7), opposite side groove (10) in the outer ring.

3. roller bearing according to claim 2 is characterized in that: the spring lock ring (3) of a side trench (7) clamping band opening wherein.

4. roller bearing according to claim 2 is characterized in that: described opposite side groove (10) clamping fluorine rubber seal assembly (5).

5. roller bearing according to claim 4 is characterized in that: be provided with in the inboard of fluorine rubber seal assembly (5) and reinforce steel ring (6).