CN105673682A

CN105673682A - Roller bearing

Info

Publication number: CN105673682A
Application number: CN201610174192.7A
Authority: CN
Inventors: 马捷
Original assignee: Nantong Lai Bite Bearing Co Ltd
Current assignee: Nantong Lai Bite Bearing Co Ltd
Priority date: 2016-03-24
Filing date: 2016-03-24
Publication date: 2016-06-15

Abstract

The application discloses a roller bearing which comprises rollers and a retainer. The rollers are arranged at intervals annularly. The retainer wraps part of the rollers, and comprises a first retaining ring and a second retaining ring, which are arranged oppositely. Connecting column groups are arranged at an interval annularly on the first retaining ring. A supporting beam group comprises four connecting columns arranged in a rectangle. A space used for the placing of the rollers is formed between the connecting column groups. The connecting columns are fixedly connected with the second retaining ring by virtue of fasteners. The roller bearing, provided by the invention, has the advantages that the connecting column groups are arranged between the first retaining ring and the second retaining ring of the retainer at an interval, and each connecting column group comprises the four connecting columns arranged in a rectangle, so that the roller wrapping area of the retainer is reduced, the heat dissipation capability of the roller bearing is improved, and besides, the contact area between the retainer and the rollers is reduced, and the friction force between the retainer and the rollers is reduced.

Description

Roller bearing

Technical field

The disclosure relates generally to technical field of bearings, is specifically related to rolling bearing, particularly relates to roller bearing.

Background technology

Bearing is a kind of important spare part in plant equipment in the present age, and its major function is to support machinery rotary body. Rolling bearing is generally made up of outer ring, inner ring, rolling element and retainer four part, specifically includes ball bearing, roller bearing etc. Wherein, retainer refers to and partly wraps up all or part of rolling element, and the bearing parts moved therewith, in order to separation roller, generally also guides rolling element and holds it in bearing.

Bearing operationally causes bearing heating and abrasion due to sliding friction, and particularly when high temperature operation, the effect of centrifugal inertial force exacerbates friction, abrasion and heating, can cause retainer burn or fracture, cause bearing cisco unity malfunction time serious. Therefore the retainer of the friction of rolling element is become study hotspot and the difficult point of those skilled in the art by high heat dispersion and reduction always.

Summary of the invention

In view of drawbacks described above of the prior art or deficiency, it is desirable to provide a kind of and there is high heat dispersion and the roller bearing reducing the friction to rolling element.

The present invention provides a kind of roller bearing, the retainer that the roller arranged including annular space and wrapping portion roll, retainer includes the first retaining ring and the second retaining ring that are oppositely arranged, in first retaining ring, annular space is provided with joint pin group, support beam group and include the joint pin of 4 rectangular array, form the space laid with roller, joint pin and the second retaining ring between joint pin group to connect by securing member is fixing.

Roller bearing provided by the invention, by interval between the first retaining ring in retainer and the second retaining ring, joint pin group is set, and each joint pin group has the joint pin of 4 rectangular array, thus reducing the retainer cladding area to roller, improve the heat-sinking capability of roller bearing, decrease the area contacted of retainer and roller simultaneously, reduce frictional force between the two.

Accompanying drawing explanation

By reading the detailed description that non-limiting example is made made with reference to the following drawings, other features, purpose and advantage will become more apparent upon:

The ball bearing front view that Fig. 1 provides for the present embodiment;

The retainer semi-cutaway that Fig. 2 provides for the present embodiment.

Detailed description of the invention

Below in conjunction with drawings and Examples, the application is described in further detail. It is understood that specific embodiment described herein is used only for explaining related invention, but not the restriction to this invention. It also should be noted that, for the ease of describing, accompanying drawing illustrate only and invent relevant part.

It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined. Describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

The ball bearing front view that Fig. 1 provides for the present embodiment; The retainer semi-cutaway that Fig. 2 provides for the present embodiment, refer to Fig. 1-2, the present embodiment provides a kind of roller bearing, the retainer that the roller arranged including annular space and wrapping portion roll, retainer includes the first retaining ring and the second retaining ring that are oppositely arranged, and in the first retaining ring, annular space is provided with joint pin group, supports beam group and includes the joint pin of 4 rectangular array, form the space laid with roller, joint pin and the second retaining ring between joint pin group to connect by securing member is fixing.

In the present embodiment, bearing includes outer ring 3 and inner ring 4, roller 1 is arranged between outer ring 3 and inner ring 4, retainer 2 is arranged on roller 1, roller 1 bearing arranges joint pin group by interval between the first retaining ring 21 and the second retaining ring 22 in retainer 2, and each joint pin group has the joint pin 211 of 4 rectangular array, thus reducing the retainer 2 cladding area to roller 1, improve the heat-sinking capability of roller 1 bearing, decrease the area contacted of retainer 2 and roller 1 simultaneously, reduce frictional force between the two.

Preferably, joint pin 211 includes a circular arc side 2111, circular arc side 2111 and roller 1 exterior surface.

In the present embodiment, joint pin 211 is vertically built up in the first retaining ring 21; Joint pin 211 is close to triangular prism structure, and wherein one side is circular arc side 2111, and for the exterior surface with roller 1, roller 1 can rotate. The technical scheme that the present embodiment provides decreases the retaining ring cladding area to roller 1, improves the heat-sinking capability of roller 1 bearing, decreases the area contacted of retainer 2 and roller 1 simultaneously, reduces frictional force between the two.

Preferably, the first retaining ring 21 and joint pin 211 are one of the forming structure.

In the present embodiment, first retaining ring 21 and joint pin 211 are one of the forming structure, the joint between the first retaining ring 21 and the second retaining ring 22 can be efficiently reduced, also just decrease the structure that retainer 2 mountain is crossed, be effectively improved stability in the large and the impact resistance of retainer 2.

Preferably, joint pin 211 groups includes the joint pin 211 of 4 quadrate array arrangements.

In the present embodiment, limiting joint pin 211 arrangement mode in joint pin 211 groups further, be specially quadrate array arrangement, this can fit tightly with the end of roller 1, and the shift motion of restriction roller 1 improves the rotation precision of roller 1 bearing.

Preferably, between corresponding two joint pins 211 in position between adjacent joint pin 211 groups, spacing is identical.

In the present embodiment, 211 groups of uniform intervals annular array of joint pin, in the first retaining ring 21, are so easy to the processing of bearing, it is ensured that bearing each several part support force has harmony, improve the integrated support performance of bearing simultaneously.

Preferably, the part the first retaining ring 21 being arranged in joint pin 211 groups is provided with the first through hole 212.

In the present embodiment, reduce the contact area between retainer 2 and roller 1 by arranging the first through hole 212, reduce friction and the heat dispersion improving bearing. First through hole 212 can be closed polygon, it is possible to for fan-shaped pylone, concrete shape can be specifically related to by producing needs.

Preferably, in the second retaining ring 22, interval arranges the second through hole 221, and the first through hole 212 and the second through hole 221 are arranged for mirror image.

In the present embodiment, for reducing the contact area between retainer 2 and roller 1 further, reduce friction and the heat dispersion improving bearing, the second retaining ring 22 is provided with the second through hole 221, and first through hole 212 and the second through hole 221 be that mirror image is arranged, namely both positions are mutually corresponding.

Preferably, securing member is bolt 23, and joint pin 211 is provided with screwed hole 2112, and bolt 23 is connected through the second retaining ring 22 with screwed hole.

In the present embodiment, securing member is preferably bolt 23, is connected with screwed hole 2112 through the second retaining ring 22 by bolt 23, it is achieved fixes between the first retaining ring 21 with the second retaining ring 22 and is connected. Use bolt 23, be not only convenient for the replacing of retainer 2, simultaneously simple in construction, reduce cost. In order to increase the bolt 23 fastening performance to retainer 2, between bolt 23 and the second retaining ring 22, pad etc. can will be set.

Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle. Skilled artisan would appreciate that, invention scope involved in the application, it is not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, when also should be encompassed in without departing from described inventive concept simultaneously, other technical scheme being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed. Such as features described above and (but not limited to) disclosed herein have the technical characteristic of similar functions and replace mutually and the technical scheme that formed.

Claims

1. a roller bearing, the retainer rolled described in the roller arranged including annular space and wrapping portion, it is characterized in that, described retainer includes the first retaining ring and the second retaining ring that are oppositely arranged, in described first retaining ring, annular space is provided with joint pin group, described support beam group includes the joint pin of 4 rectangular array, is formed and lay the described space with described roller between described joint pin group, and described joint pin is connected by securing member is fixing with described second retaining ring.

2. roller bearing according to claim 1, it is characterised in that described joint pin includes a circular arc side, described circular arc side and described roller exterior surface.

3. roller bearing according to claim 1, it is characterised in that described first retaining ring and described joint pin are one of the forming structure.

4. roller bearing according to claim 1, it is characterised in that described joint pin group includes the described joint pin of 4 quadrate array arrangements.

5. roller bearing according to claim 1, it is characterised in that described in the position corresponding two between adjacent described joint pin group, between joint pin, spacing is identical.

6. the roller bearing according to claim 1-5 any one, it is characterised in that the part being arranged in described joint pin group in described first retaining ring is provided with the first through hole.

7. roller bearing according to claim 6, it is characterised in that in described second retaining ring, interval arranges the second through hole, and described first through hole is that mirror image is arranged with described second through hole.

8. roller bearing according to claim 7, it is characterised in that described securing member is bolt, described joint pin is provided with screwed hole, and described bolt is connected through described second retaining ring and described screwed hole.