CN210715563U

CN210715563U - Cylindrical roller bearing

Info

Publication number: CN210715563U
Application number: CN201921239369.2U
Authority: CN
Inventors: 石伟男
Original assignee: Weisheng Bearing Factory Dashiju Town Xinchang County
Current assignee: Weisheng Bearing Factory Dashiju Town Xinchang County
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-06-09
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a cylindrical roller bearing, including bearing inner race and bearing inner race, be equipped with the holder between bearing inner race and the bearing inner race, and rotate on the holder and be provided with the equidistance and be the cylindrical roller that the annular distributes, the equal joint in bearing inner race inner wall both sides position department has first sealing ring, and the equal joint in bearing inner race outer wall both sides position department has the second sealing ring, first sealing ring inner wall is awl slot column structure, second sealing ring outer wall is the conical surface structure, and two second sealing rings insert respectively and establish in two first sealing rings, and two second sealing ring lateral walls all are equipped with the protruding stupefied of annular, and two first sealing ring inner walls all are equipped with the sealed slot with the protruding stupefied looks adaptation of annular. The utility model discloses support more firmly, easy to assemble roller, easy operation, the sliding sleeve that sets up simultaneously is favorable to reducing the frictional force between holder and the roller, reduces the rotation resistance of bearing.

Description

Cylindrical roller bearing

Technical Field

The utility model relates to a cylindrical roller bearing technical field especially relates to a cylindrical roller bearing.

Background

The rolling bodies are radial rolling bearings of cylindrical rollers. The internal structure of the cylindrical roller bearing adopts rollers which are arranged in parallel, and space retainers or spacing blocks are arranged between the rollers, so that the inclination of the rollers or the mutual friction between the rollers can be prevented, and the increase of the rotating torque is effectively prevented.

The existing cylindrical roller bearing has low heat transfer efficiency, can not quickly dissipate high temperature generated in the rotating process of the bearing, and has general assembling efficiency, so the cylindrical roller bearing is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cylindrical roller bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cylindrical roller bearing, includes bearing inner race and bearing inner race, be equipped with the holder between bearing inner race and the bearing inner race, and rotate on the holder and be provided with the equidistant cylindrical roller that is the annular and distributes, the equal joint in bearing inner race inner wall both sides position department has first sealing ring, and the equal joint in bearing inner race outer wall both sides position department has the second sealing ring, first sealing ring inner wall is the taper groove column structure, second sealing ring outer wall is the conical surface structure, and two second sealing rings insert respectively and establish in two first sealing rings, and two second sealing ring lateral walls all are equipped with the protruding stupefied of annular, and two first sealing ring inner walls all are equipped with the sealed slot with the protruding stupefied looks adaptation of annular.

Preferably, the inner wall of the bearing inner ring is provided with an annular mounting groove, and the inner wall of the annular mounting groove is embedded with a heat-conducting copper sleeve.

Preferably, the retainer comprises an inner lining ring and an outer lining ring, the inner lining ring is sleeved in the outer lining ring, first semicircular openings which are annularly distributed at equal intervals and are inwards recessed along the radial direction are formed in the side wall of the inner lining ring, and second semicircular openings which are annularly distributed at equal intervals and are outwards recessed along the radial direction are formed in the inner wall of the outer lining ring.

Preferably, the middle position of the side wall of the cylindrical roller is provided with an annular groove, and the inner wall of the annular groove is embedded with a sliding sleeve.

Preferably, the sliding sleeve is formed by injection molding of PBT resin, and the sliding sleeve is arranged between the first semicircular notch and the second semicircular notch in a rolling mode.

Preferably, the first sealing ring and the second sealing ring are both formed by injection molding of nitrile rubber.

The utility model has the advantages that:

1. through the retainer that sets up, the outer backing ring and the interior backing ring that combine to set up support more firmly, and easy to assemble roller, easy operation, the sliding sleeve that sets up simultaneously is favorable to reducing the frictional force between retainer and the roller, reduces the rolling resistance of bearing.

2. Through the first sealing ring and the second sealing ring that set up, it is stupefied to combine the annular of setting, is favorable to promoting the leakproofness of bearing, and the heat conduction copper sheathing that the cooperation set up simultaneously promotes the heat conduction efficiency of bearing, reaches better radiating effect, promotes the life of bearing.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a cylindrical roller bearing according to the present invention;

fig. 2 is a schematic structural view of a cylindrical roller bearing retainer according to the present invention;

fig. 3 is a schematic view of a cross-sectional structure of a cylindrical roller of the cylindrical roller bearing according to the present invention.

In the figure: the bearing comprises a heat-conducting copper sleeve 1, a bearing inner ring 2, an annular mounting groove 3, a cylindrical roller 4, a bearing outer ring 5, a first sealing ring 6, an annular convex ridge 7, a second sealing ring 8, a retainer 9, a second semicircular opening 10, a first semicircular opening 11, an outer lining ring 12, an inner lining ring 13, an annular groove 14 and a sliding sleeve 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a cylindrical roller bearing, including bearing inner race 2 and bearing outer race 5, be equipped with holder 9 between bearing inner race 2 and the bearing outer race 5, and rotate on the holder 9 and be the cylindrical roller 4 that the equidistance is the annular and distributes, 5 inner wall both sides positions department of bearing outer race has first sealing

ring

6, and 2 outer wall both sides positions departments of bearing inner race have second sealing ring 8 in the joint, 6 inner walls of first sealing ring are the taper groove column structure, 8 outer walls of second sealing ring are the conical surface structure, and two second sealing ring 8 insert respectively and establish in two

first sealing ring

6, 8 lateral walls of two second sealing ring all are equipped with protruding stupefied 7 of annular, and two 6 inner walls of first sealing ring all are equipped with the sealed slot with protruding stupefied 7 looks adaptation of annular.

The utility model discloses in, 2 inner walls of bearing inner circle are opened there is

annular mounting groove

3, and 3 inner walls of annular mounting groove have inlayed heat conduction copper sheathing 1, holder 9 includes interior grommet 13 and outer grommet 12, and interior grommet 13 cover is established in outer grommet 12, interior grommet 13 lateral wall is equipped with that the equidistance is the first semicircle opening 11 along radial inside sunken that the annular distributes, and outer grommet 12 inner wall is equipped with that the equidistance is the second semicircle opening 10 along radial outside sunken that the annular distributes, 4 lateral wall intermediate position departments of cylindrical roller are equipped with

ring channel

14, and 14 inner walls of ring channel have inlayed sliding sleeve 15, sliding sleeve 15 is by PBT resin injection moulding, and sliding sleeve 15 rolls and sets up position department between first semicircle opening 11 and second semicircle opening 10,

first sealing ring

6 and 8 nitrile rubber injection moulding of second sealing ring.

The working principle is as follows: retainer 9 adopts outer backing ring 12 and the design of the components of a whole that can function independently of interior backing ring 13, easy to assemble cylindrical roller 4, moreover, the steam jacket 15 that easy operation, the while set up, be favorable to reducing the frictional force between retainer 9 and the cylindrical roller 4, reduce the turning resistance of bearing, first sealing ring 6 and second sealing ring 8 through setting up, combine the protruding stupefied 7 of annular that sets up, be favorable to promoting the leakproofness of bearing, the heat conduction copper sheathing 1 that the cooperation set up simultaneously, promote the heat conduction efficiency of bearing, reach better radiating effect, promote the life of bearing.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A cylindrical roller bearing comprises a bearing inner ring (2) and a bearing outer ring (5), it is characterized in that a retainer (9) is arranged between the bearing inner ring (2) and the bearing outer ring (5), and the retainer (9) is rotatably provided with cylindrical rollers (4) which are distributed annularly at equal intervals, the two sides of the inner wall of the bearing outer ring (5) are respectively clamped with a first sealing ring (6), and the two sides of the outer wall of the bearing inner ring (2) are respectively clamped with a second sealing ring (8), the inner wall of the first sealing ring (6) is in a conical groove structure, the outer wall of the second sealing ring (8) is in a conical surface structure, and the two second sealing rings (8) are respectively inserted in the two first sealing rings (6), the side walls of the two second sealing rings (8) are respectively provided with an annular convex edge (7), and the inner walls of the two first sealing rings (6) are provided with sealing grooves matched with the annular convex edges (7).

2. The cylindrical roller bearing as claimed in claim 1, wherein the bearing inner ring (2) is provided with an annular mounting groove (3) on the inner wall, and the heat-conducting copper sleeve (1) is embedded in the inner wall of the annular mounting groove (3).

3. The cylindrical roller bearing as claimed in claim 1, wherein the cage (9) comprises an inner lining ring (13) and an outer lining ring (12), the inner lining ring (13) is sleeved in the outer lining ring (12), the side wall of the inner lining ring (13) is provided with first semicircular notches (11) which are equidistantly distributed annularly and are recessed inwards in the radial direction, and the inner wall of the outer lining ring (12) is provided with second semicircular notches (10) which are equidistantly distributed annularly and are recessed outwards in the radial direction.

4. The cylindrical roller bearing as claimed in claim 1, characterized in that an annular groove (14) is provided in the cylindrical roller (4) at a position in the middle of the side wall, and a sliding sleeve (15) is embedded in the inner wall of the annular groove (14).

5. Cylindrical roller bearing according to claim 4, characterized in that the sliding sleeve (15) is injection molded from PBT resin and that the sliding sleeve (15) is arranged rolling on a position between the first semicircular gap (11) and the second semicircular gap (10).

6. Cylindrical roller bearing according to claim 1, characterized in that the first sealing ring (6) and the second sealing ring (8) are injection molded from nitrile rubber.