CN217328110U

CN217328110U - Tapered roller bearing with high wear resistance

Info

Publication number: CN217328110U
Application number: CN202221485352.7U
Authority: CN
Inventors: 汪新然; 汪印槟; 张秀霞
Original assignee: Shandong Haisai Bearing Technology Co ltd
Current assignee: Shandong Haisai Bearing Technology Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-08-30
Anticipated expiration: 2032-06-14

Abstract

The utility model discloses a tapered roller bearing with high abrasion resistance, and the tapered roller is assembled between the protection inner ring and the protection outer ring in a rolling way, the retainer assembled outside the tapered roller is assembled between the protection inner ring and the protection outer ring in a sleeving way, the outer edge of the outer side wall of the protection inner ring is fixedly provided with a limit ring matched with the retainer, the outer side wall of the protection inner ring is provided with a wear-resistant shaft shoulder matched with the tapered roller, the retainer is abutted against the top of the wear-resistant shaft shoulder, the left side clamping between the protection inner ring and the protection outer ring is provided with a first protection sealing ring, the right side clamping between the protection inner ring and the protection outer ring is provided with a second protection sealing ring, the bearing load capacity is increased, the bearing impact resistance is improved, the friction force between the tapered roller and the protection inner ring can be reduced, and the action force arm of friction moment can be shortened, thereby reducing the friction loss and prolonging the service life of the tapered roller when rolling.

Description

Tapered roller bearing with high wear resistance

Technical Field

The utility model relates to a tapered roller bearing technical field specifically is a tapered roller bearing that abrasion resistance is high.

Background

The tapered roller bearing belongs to a separation type bearing, an inner ring and an outer ring of the bearing are respectively provided with a tapered raceway, 888 type bearings are divided into different structural forms of a single-row tapered roller bearing, a double-row tapered roller bearing and a four-row tapered roller bearing according to the number of rows of rollers, the single-row tapered roller bearing can bear radial load and single-direction axial load, when the bearing bears the radial load, an axial component force is generated, at present, the tapered roller bearing is an important part, generally, the tapered roller bearing is installed on a main shaft in pairs and can be influenced by high load and vibration when in use, the generally adopted tapered roller bearing is used for bearing the bearing force mainly based on the radial force, when the bearing force is subjected to high load, the friction loss between the tapered roller and the inner and outer protective rings can be increased, the service life of the bearing can be reduced, meanwhile, the abrasion between the tapered roller and a protective ring can be intensified, and the abrasion resistance of the bearing can not be high, therefore, a tapered roller bearing with high wear resistance is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tapered roller bearing that wearability is high to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tapered roller bearing that abrasion resistance is high, is including protecting the inner circle, protection inner circle outside cover is established and is equipped with the protection outer lane, just roll between protection inner circle and the protection outer lane and be equipped with tapered roller, it establishes the holder in the tapered roller outside to be equipped with the cover between protection inner circle and the protection outer lane, the fixed spacing ring that is provided with holder looks adaptation in lateral wall outer fringe of protection inner circle, be equipped with the wear-resisting shaft shoulder with tapered roller looks adaptation on the lateral wall of protection inner circle, just the holder supports to lean on the assembly at wear-resisting shaft shoulder top, the left side joint is equipped with first protective sealing circle between protection inner circle and the protection outer lane, the right side joint is equipped with second protective sealing circle between protection inner circle and the protection outer lane.

Preferably, first spacing raceway has been seted up in the outside of protection inner circle, the lateral wall right side integrated into one piece of protection inner circle is provided with the solid fixed ring with spacing ring looks adaptation, just gu fixed ring inboard is provided with annular spacing groove, just first annular oil groove has been seted up to the left side on the first spacing raceway inside wall, second annular oil groove has been seted up to the right side on the first spacing raceway inside wall.

Preferably, the limiting ring is matched with the fixing ring, and the annular limiting groove is matched with the wear-resistant shaft shoulder.

Preferably, a second limiting slide way matched with the tapered roller is arranged on the inner side wall of the protective outer ring.

Preferably, the first limiting raceway and the second limiting raceway are arranged oppositely, and the surfaces of the first limiting raceway and the second limiting raceway are inclined surfaces matched with the surfaces of the tapered rollers.

Preferably, the cross sections of the first annular oil groove and the second annular oil groove are both semicircular, and the first annular oil groove and the second annular oil groove are the same in size.

Preferably, the left end and the right end of the tapered roller are integrally provided with a limiting column.

Preferably, the retainer is uniformly provided with rolling grooves matched with the tapered rollers, and the inner side walls of the rolling grooves are provided with holding grooves matched with the limiting columns.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages of reasonable design, the length of tapered roller is adapted with the width of the protective inner ring and the protective outer ring, thus the tapered roller can be properly widened, the radial force and the axial force which can be born by the bearing are greatly improved, thereby the bearing load capacity is increased and the impact resistance of the bearing is improved, the wear-resistant shaft shoulder assembled on the protective inner ring can limit the tapered roller, the tapered roller is prevented from falling off while the wear resistance is improved, the retainer is assembled on the wear-resistant shaft shoulder in a propping manner, the retainer can limit the retainer while the wear resistance loss is reduced, the safety of the tapered roller during rolling is improved, the wear-resistant shaft shoulder and the retainer ring are bearing blocking pieces which are independently arranged, after the structural assembly is completed, the friction force between the tapered roller and the protective inner ring can be reduced, and the acting force arm of the friction moment can also be shortened, thereby reduce friction loss, improved the life when tapered roller rolls, first protection sealing washer and second protection sealing washer can be to carrying out sealed processing between protection inner circle and the protection outer lane, prevent the outflow of lubricating oil and the infiltration of external dust, improve the leakproofness.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the protective inner ring structure of the present invention;

FIG. 3 is a schematic view of the protective outer ring structure of the present invention;

fig. 4 is the assembly structure diagram of the retainer and the tapered roller of the present invention.

In the figure: 1. a protective inner ring; 11. a first limit raceway; 12. a fixing ring; 13. an annular limiting groove; 14. a first annular oil groove; 15. a second annular oil groove; 2. a protective outer ring; 21. a second limiting raceway; 3. a tapered roller; 31. a limiting column; 4. a cage; 41. a holding groove; 5. a limiting ring; 6. a wear-resistant shaft shoulder; 7. a first protective seal ring; 8. and a second protective sealing ring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution: the utility model provides a tapered roller bearing that abrasion resistance is high, including protection

inner circle

1, 1 outside cover of protection inner circle is established and is equipped with protection outer lane 2, and roll between protection inner circle 1 and the protection outer lane 2 and be equipped with tapered roller 3, it establishes the holder 4 in the tapered roller 3 outside to be equipped with the cover between protection inner circle 1 and the protection outer lane 2, the fixed spacing ring 5 that is provided with 4 looks adaptations of holder in the lateral wall outer fringe of protection inner circle 1, be equipped with the wear-resisting shoulder 6 with 3 looks adaptations of tapered roller on the lateral wall of protection inner circle 1, and holder 4 supports to lean on the assembly at 6 tops of wear-resisting shoulder, the left side joint is equipped with first protection sealing washer 7 between protection inner circle 1 and the protection outer lane 2, the right side joint is equipped with second protection sealing washer 8 between protection inner circle 1 and the protection outer lane 2.

Referring to fig. 1 and 2, the limiting ring 5 is adapted to the fixing ring 12, and the annular limiting groove 13 is adapted to the wear-resistant shaft shoulder 6, so that the wear-resistant shaft shoulder 6 can be assembled;

referring to fig. 3, a second limiting slideway 21 adapted to the tapered roller 3 is disposed on the inner side wall of the protective outer ring 2;

referring to fig. 1, fig. 2 and fig. 3, the first limiting raceway 11 and the second limiting raceway 21 are oppositely disposed, and the surfaces of the first limiting raceway 11 and the second limiting raceway 21 are both inclined surfaces adapted to the surface of the tapered roller 3;

referring to fig. 2, the cross sections of the first annular oil groove 14 and the second annular oil groove 15 are both semicircular, and the first annular oil groove 14 and the second annular oil groove 15 have the same size;

referring to fig. 4, the left and right ends of the tapered roller 3 are integrally formed with a stopper 31;

referring to fig. 4, rolling grooves adapted to the tapered rollers 3 are uniformly formed in the retainer 4, and retaining grooves 41 adapted to the limiting posts 31 are formed in the inner side walls of the rolling grooves, so that the limiting posts 31 are conveniently limited by the retaining grooves 41, and the stability of the tapered rollers 3 during installation is improved;

the working principle is as follows: the length of the tapered roller 3 is matched with the widths of the protective inner ring 1 and the protective outer ring 2, so that the tapered roller 3 can be properly widened, the radial force and the axial force which can be borne by a bearing are greatly improved, the bearing load capacity is increased, the bearing impact resistance is improved, the wear-resistant shaft shoulder 6 assembled on the protective inner ring 1 can limit the tapered roller 3, the tapered roller 3 is prevented from falling off while the wear resistance is improved, the retainer 4 is abutted against and assembled on the wear-resistant shaft shoulder 6, the retainer 4 can be limited by the limiting ring 5 while the wear resistance loss is reduced, the safety of the tapered roller 3 in rolling is improved, the wear-resistant shaft shoulder 6 and the limiting ring 5 are bearing blocking pieces which are independently arranged, after the structure is assembled, the friction force between the tapered roller 3 and the protective inner ring 1 can be reduced, and the acting force arm of the friction moment can also be shortened, thereby reduce friction loss, improved the life when tapered roller 3 rolls, first protection sealing washer 7 and second protection sealing washer 8 can be to carrying out sealed processing between protection inner circle 1 and the protection outer lane 2, prevent the outflow of lubricating oil and the infiltration of external dust, improve the leakproofness.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tapered roller bearing that wearing resistance is high which characterized in that: comprises a protective inner ring (1), a protective outer ring (2) is sleeved and assembled on the outer side of the protective inner ring (1), and a tapered roller (3) is arranged between the protective inner ring (1) and the protective outer ring (2) in a rolling way, a retainer (4) sleeved and assembled at the outer side of the tapered roller (3) is assembled between the protective inner ring (1) and the protective outer ring (2), the outer edge of the outer side wall of the protective inner ring (1) is fixedly provided with a limit ring (5) matched with the retainer (4), the outer side wall of the protective inner ring (1) is provided with a wear-resistant shaft shoulder (6) matched with the tapered roller (3), the retainer (4) is abutted against and assembled at the top of the wear-resistant shaft shoulder (6), a first protective sealing ring (7) is clamped and assembled at the left side between the protective inner ring (1) and the protective outer ring (2), the right side joint is equipped with second protection sealing washer (8) between protection inner circle (1) and protection outer lane (2).

2. A tapered roller bearing with high wear resistance as claimed in claim 1, wherein: first spacing raceway (11) have been seted up in the outside of protection inner circle (1), the lateral wall right side integrated into one piece of protection inner circle (1) is provided with solid fixed ring (12) with spacing ring (5) looks adaptation, just gu fixed ring (12) inboard is provided with annular spacing groove (13), just first annular oil groove (14) have been seted up on the left side on first spacing raceway (11) inside wall, second annular oil groove (15) have been seted up on the right side on first spacing raceway (11) inside wall.

3. A tapered roller bearing with high wear resistance as claimed in claim 2, wherein: the limiting ring (5) is matched with the fixing ring (12), and the annular limiting groove (13) is matched with the wear-resistant shaft shoulder (6).

4. A tapered roller bearing with high wear resistance as claimed in claim 2, wherein: and a second limiting roller path (21) matched with the tapered roller (3) is formed in the inner side wall of the protective outer ring (2).

5. A tapered roller bearing with high wear resistance as set forth in claim 4, wherein: the first limiting raceway (11) and the second limiting raceway (21) are arranged oppositely, and the surfaces of the first limiting raceway (11) and the second limiting raceway (21) are inclined surfaces matched with the surface of the tapered roller (3).

6. The tapered roller bearing with high wear resistance as claimed in claim 2, wherein: the cross sections of the first annular oil groove (14) and the second annular oil groove (15) are semicircular, and the first annular oil groove (14) and the second annular oil groove (15) are the same in size.

7. A tapered roller bearing with high wear resistance as claimed in claim 1, wherein: the left end and the right end of the tapered roller (3) are provided with limit columns (31) in an integrated forming mode.

8. A tapered roller bearing with high wear resistance as claimed in claim 7, wherein: the retainer (4) is uniformly provided with rolling grooves matched with the tapered rollers (3), and the inner side walls of the rolling grooves are provided with holding grooves (41) matched with the limiting columns (31).