CN203394998U

CN203394998U - Bearing

Info

Publication number: CN203394998U
Application number: CN201320456760.4U
Authority: CN
Inventors: 龙丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2014-01-15
Anticipated expiration: 2023-07-30

Abstract

The utility model discloses a bearing. The bearing comprises an outer circle, an inner circle, rollers and a retainer, and is characterized in that the outer circle and the inner circle respectively adopt a split design; an outer circle track groove is formed in an inner loop of the outer circle; an inner circle track groove is formed in an outer loop of the inner circle; the groove profile sections of the inner circle track groove and the outer circle track groove are symmetric, and an annular rolling channel is formed by the inner circle track groove and the outer circle track groove; the rollers are of a spindle type; gear teeth are uniformly distributed in the middle of each roller; the retainer comprises an inner gear ring and an outer gear ring; gear teeth on the inner gear ring and the outer gear ring are matched with the gear teeth on the rollers; more than two rollers are uniformly arranged between the inner gear ring and the outer gear ring and roll in the annular rolling channel. The bearing can bear high radial and axial loads and is low in noise, simple in structure and low in cost; meanwhile, the sliding friction is reduced.

Description

A kind of bearing

[technical field]

The utility model relates to a kind of bearing.

[background technique]

Bearing is in mechanical transmission course, to work the parts of fixing and reducing load friction factor.Also can say, when other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor and retainer shaft central position in power transmission process.Bearing is a kind of very important component in contemporary machinery.Its major function is supported mechanical solid of rotation, the mechanical load friction factor in order to reduction equipment in transmission process.Press the difference of motor element frictional property, bearing can be divided into rolling bearing and sliding bearing two classes.

In the prior art, the ball of ball bearing is ball-shaped, and the Internal and external cycle surface of contact of bearing is smaller, can not bear large load; Needle bearing can bear larger radial load, but can not bear axial load, because needle bearing axial load is to lean on the step on bearing enclose both sides to block to realize, so the part preset clearance that will roll at step and needle bearing, and needle roller can tilt because machining error or slight deformation cause rotating direction.Roller two of tapered roller bearing and retainer are also sliding frictions, so also want preset clearance, can cause like this roller to move on inclined-plane, thereby while making roller rotation, bearing unbalanced external force will beat, and tapered roller bearing large end face and the different length of small end face rolling stroke, roller keeps roller rotating direction by retainer purely, so tapered roller bearing is also not exclusively rolling friction, also with sliding friction, thereby the easy mechanical failure that occurs after retainer wearing and tearing, and retainer when rotation and inner ring, outer ring produces friction, produce larger noise.

Above defective value must improve.

[model utility content]

In order to overcome the deficiencies in the prior art, the utility model provides a kind of bearing, described outer ring and inner ring all adopt split design, on the interior circuit of Qie outer ring and the bypass road of inner ring, be provided with the symmetrical outer race track groove of rectangle and trapezium channel section and inner race track groove, and jointly form a ring-type roll channel, described roller designs for spindle-type, middle part is evenly distributed with the roller gear teeth, and by a retainer being formed by internal tooth torus and external tooth torus, several rollers are fixed, roller is rolled in ring-type roll channel, can bear larger radial load and axial load, reduce sliding friction simultaneously, noise is little, simple in structure, with low cost.

Technical solutions of the utility model are as described below:

A kind of bearing, comprise outer ring, inner ring, roller and retainer, it is characterized in that, described outer ring adopts split design, comprise the upper outer ring connecting from top to down, race gasket and lower outer ring, and on anchor ring, form a V-type outer race track groove within it, the bottom of described V-type outer race track groove is annular outer ring groove, and described upper outer ring, on the corresponding position of race gasket Ji Xia outer ring, be provided with outer ring through hole, described inner ring also adopts split design, comprise the upper inner ring connecting from top to down, inner ring gasket and lower inner ring, and on its outer ring surface, form a V-type inner race track groove, the bottom of described V-type inner race track groove is annular inner ring groove, and described upper inner ring, on the corresponding position of inner ring gasket and lower inner ring, be provided with interior ring through hole, the rectangle and trapezium channel section of described V-type inner race track groove and described V-type outer race track groove is symmetrical, and jointly form a ring-type roll channel, described roller is spindle-type, and middle part is evenly distributed with the roller gear teeth, described retainer comprises external tooth torus and internal tooth torus, the gear ring gear teeth on described external tooth torus and described internal tooth torus and the roller gear teeth on described roller match, described external gear ring set is combined in described annular outer ring groove, described internal gear ring set is combined in described annular inner ring groove, plural roller is evenly entrenched between described external tooth torus and described internal tooth torus, and roll in described ring-type roll channel.

Realize the technical solution of the utility model, further comprise, the gear teeth of described external tooth torus are intracardiac towards ring.

Realize the technical solution of the utility model, further comprise, the gear teeth of described internal tooth torus are outside the ring heart.

Realize the technical solution of the utility model, further comprise, the outer ring pin hole that described outer ring through hole is adjacent setting and outer ring screw hole.

Realize the technical solution of the utility model, further comprise, the inner ring pin hole that described interior ring through hole is adjacent setting and inner ring screw hole.

According to the utility model of said structure, its beneficial effect is, described outer ring and inner ring all adopt split design, on the interior circuit of Qie outer ring and the bypass road of inner ring, be provided with the symmetrical outer race track groove of rectangle and trapezium channel section and inner race track groove, and jointly form a ring-type roll channel, described roller designs for spindle-type, middle part is evenly distributed with the gear teeth, and by a retainer being formed by internal tooth torus and external tooth torus, several rollers are fixed, make roller in ring-type roll channel, remain that proportional spacing rolls, described external tooth torus and described internal tooth torus are linked in respectively described annular outer ring groove, in described annular inner ring groove, roller is that wire contacts with surface of contact in groove, and area of contact is large, thereby can bear larger radial load and axial load, reduce sliding friction simultaneously, noise is little, simple in structure, with low cost.In long-term use, while causing wearing and tearing affect normal use because of the friction of surface of contact, upper inner ring, inner ring gasket and lower inner ring that Shang outer ring, Ke Jiang outer ring, race gasket and lower outer ring are in contact with one another face and/or inner ring are in contact with one another face by after grinding, re-use pin and screw again that it is fastening, can continue normal use, improve the peak use rate of product.

[accompanying drawing explanation]

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

Fig. 2 is outer ring structure schematic diagram of the present utility model.

Fig. 3 is outer ring of the present utility model sectional view.

Fig. 4 is inner ring structure schematic diagram of the present utility model.

Fig. 5 is inner ring sectional view of the present utility model.

Fig. 6 is roller of the present utility model and retainer mounting structure schematic diagram.

Fig. 7 is roller structure schematic diagram of the present utility model.

Fig. 8 is the structural representation that the utility model is disassembled outer ring.

，10, outer ring in the drawings; 11,Shang outer ring; 12, race gasket; 13,Xia outer ring; 14, V-type outer race track groove; 15, outer ring through hole; 20, inner ring; 21, upper inner ring; 22, inner ring gasket; 23, lower inner ring; 24, V-type inner race track groove; 25, interior ring through hole; 30, roller; 31; The roller gear teeth; 41, external tooth torus; 42, internal tooth torus; 43, the gear ring gear teeth.

[embodiment]

Below in conjunction with accompanying drawing and mode of execution, the utility model is conducted further description:

Optimum embodiment

As shown in Figures 1 to 8, a kind of bearing, comprise outer ring 10, inner ring 20, roller 30 and retainer, it is characterized in that, described outer ring 10 adopts split design, comprise the upper outer ring 11 connecting from top to down, race gasket 12 and lower outer ring 13, and on anchor ring, form a V-type outer race track groove 14 within it, the bottom of described V-type outer race track groove 14 is annular outer ring groove, and described upper outer ring 11, on the corresponding position of race gasket 12Ji Xia outer ring 13, be provided with outer ring through hole 15, described inner ring 20 also adopts split design, comprise the upper inner ring 21 connecting from top to down, inner ring gasket 22 and lower inner ring 23, and on its outer ring surface, form a V-type inner race track groove 24, the bottom of described V-type inner race track groove 24 is annular inner ring groove, and described upper inner ring 21, on the corresponding position of inner ring gasket 22 and lower inner ring 23, be provided with interior ring through hole 25, the rectangle and trapezium channel section of described V-type inner race track groove 14 and described V-type outer race track groove 24 is symmetrical, and jointly form a ring-type roll channel, described roller 30 is spindle-type, and middle part is evenly distributed with the roller gear teeth 31, described retainer comprises external tooth torus 41 and internal tooth torus 42, the gear ring gear teeth 43 on described external tooth torus 41 and described internal tooth torus 42 match with the roller gear teeth 31 on described roller, described external tooth torus 41 is linked in described annular outer ring groove, described internal tooth torus 42 is linked in described annular inner ring groove, plural roller 30 is evenly entrenched between described external tooth torus 41 and described internal tooth torus 42, and roll in described ring-type roll channel.

In the present embodiment, the gear ring gear teeth 43 of described internal tooth torus 42 are outside ring.The gear ring gear teeth 43 of described external tooth torus 41 are in ring.Outer ring pin hole and outer ring screw hole that described outer ring through hole 15 is adjacent setting, the aperture of outer ring pin hole is large described in the aperture ratio of described outer ring screw hole.Inner ring pin hole and inner ring screw hole that described interior ring through hole 25 is adjacent setting, the aperture of inner ring pin hole is large described in the aperture ratio of described inner ring screw hole.

Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.

By reference to the accompanying drawings the utility model patent has been carried out to exemplary description above; obviously the realization of the utility model patent is not subject to the restrictions described above; as long as adopted the method design of the utility model patent and the various improvement that technological scheme is carried out; or without improving, the design of the utility model patent and technological scheme are directly applied to other occasion, all in protection domain of the present utility model.

Claims

1. a bearing, comprise outer ring, inner ring, roller and retainer, it is characterized in that, described outer ring adopts split design, comprise the upper outer ring connecting from top to down, race gasket and lower outer ring, and on anchor ring, form a V-type outer race track groove within it, the bottom of described V-type outer race track groove is annular outer ring groove, and described upper outer ring, on the corresponding position of race gasket Ji Xia outer ring, be provided with outer ring through hole, described inner ring also adopts split design, comprise the upper inner ring connecting from top to down, inner ring gasket and lower inner ring, and on its outer ring surface, form a V-type inner race track groove, the bottom of described V-type inner race track groove is annular inner ring groove, and described upper inner ring, on the corresponding position of inner ring gasket and lower inner ring, be provided with interior ring through hole, the rectangle and trapezium channel section of described V-type inner race track groove and described V-type outer race track groove is symmetrical, and jointly form a ring-type roll channel, described roller is spindle-type, and middle part is evenly distributed with the roller gear teeth, described retainer comprises external tooth torus and internal tooth torus, the roller gear teeth on described external tooth torus and described internal tooth torus and the gear ring gear teeth on described roller match, described external gear ring set is combined in described annular outer ring groove, described internal gear ring set is combined in described annular inner ring groove, plural roller is evenly entrenched between described external tooth torus and described internal tooth torus, and roll in described ring-type roll channel.

2. bearing according to claim 1, is characterized in that, the gear teeth of described external tooth torus are intracardiac towards ring.

3. bearing according to claim 1, is characterized in that, the gear teeth of described internal tooth torus are outside the ring heart.

4. bearing according to claim 1, is characterized in that, the outer ring pin hole that described outer ring through hole is adjacent setting and outer ring screw hole.

5. bearing according to claim 1, is characterized in that, the inner ring pin hole that described interior ring through hole is adjacent setting and inner ring screw hole.