CN212155484U - Low-friction retainer for axial rollers of three-row roller bearing - Google Patents
Low-friction retainer for axial rollers of three-row roller bearing Download PDFInfo
- Publication number
- CN212155484U CN212155484U CN202020322211.8U CN202020322211U CN212155484U CN 212155484 U CN212155484 U CN 212155484U CN 202020322211 U CN202020322211 U CN 202020322211U CN 212155484 U CN212155484 U CN 212155484U
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- roller
- axial
- retainer
- bearing
- axial roller
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- 238000000034 method Methods 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 13
- 239000004519 grease Substances 0.000 abstract description 12
- 238000005461 lubrication Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Rolling Contact Bearings (AREA)
Abstract
A low-friction retainer for axial rollers of a three-row roller bearing is arc-shaped plate-shaped; in the process of assembling the three-row roller bearing shaft, the end surfaces of the two sides of the plurality of axial roller retainers are mutually contacted to form a ring; the axial roller retainer is characterized in that the plate surface of the axial roller retainer is uniformly provided with penetrating roller grooves, and the axial rollers are rotationally arranged in the roller grooves; wave-shaped oil grooves are arranged on the outer arc surface and the inner arc surface of the axial roller retainer, and penetrate through the upper plate surface and the lower plate surface of the axial roller retainer to form oil outlets; arc-shaped bosses are uniformly arranged on the outer arc surface and the inner arc surface of the axial roller retainer, so that a lubricating grease storage space between the outer arc surface of the axial roller retainer and the flange of the bearing outer sleeve is enlarged; in the running process of the three-row roller bearing, lubricating grease is cast to the whole bearing outer sleeve flange from the oil outlets on the upper and lower plate surfaces, so that sufficient lubrication is formed between the outer arc surface of the axial roller retainer and the bearing outer sleeve flange, and the problem that the retainer is scrapped due to serious abrasion in the past is solved.
Description
Technical Field
The utility model relates to a large-scale three rows of roller slewing bearing technical field, concretely relates to three rows of roller bearing low friction holders for axial roller.
Background
The axial rolling bodies of the three rows of cylindrical turntable bearings rotate on a plane, the motion inertia of the rolling bodies at any position moves along the tangential direction of a rotating circle of the rolling bodies, and if the rolling bodies rotate in a rotating manner, a retainer is required to apply an inward force to the end faces of the rolling bodies; in addition, the rolling body rotates to generate a centrifugal force to act on the retainer; when the three rows of cylindrical turntable bearings rotate, the two forces enable the outer arc surface of the rolling body retainer to be pressed on the flange of the bearing outer sleeve to generate sliding friction; at present, the outer arc surface of the retainer is a smooth cylindrical surface, which causes no lubricating grease storage space between the retainer and the flange of the bearing outer sleeve, so that the retainer and the flange of the bearing outer sleeve are in a mixed lubrication state; in the long-term operation process of the three-row cylindrical turntable bearing, lubricating grease cannot be supplemented in time, the lubricating condition can be further deteriorated after long-term work, boundary lubrication is generated, and finally the retainer is scrapped due to serious abrasion.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background art, the utility model discloses a low-friction retainer for axial rollers of a three-row roller bearing; the axial roller retainer is arc-shaped plate-shaped; in the process of assembling the three-row roller bearing, the end surfaces of the two sides of the plurality of axial roller retainers are mutually contacted to form a ring; the axial roller retainer is characterized in that the plate surface of the axial roller retainer is uniformly provided with penetrating roller grooves, and in the process of assembling the three rows of roller bearings, the axial rollers are rotationally arranged in the roller grooves; wave-shaped oil grooves are arranged on the outer arc surface and the inner arc surface of the axial roller retainer, and penetrate through the upper plate surface and the lower plate surface of the axial roller retainer to form oil outlets on the upper plate surface and the lower plate surface; arc-shaped bosses are uniformly distributed on the outer arc surface and the inner arc surface of the axial roller retainer, and when the three-row roller bearing works, the arc-shaped bosses on the outer arc surface of the axial roller retainer are contacted with the flanges of the bearing outer sleeve, so that a lubricating grease storage space is formed between the outer arc surface of the axial roller retainer and the flanges of the bearing outer sleeve; in the running process of the three-row roller bearing, lubricating grease flows to the whole bearing outer sleeve flange from the oil outlets on the upper and lower plate surfaces through the wave-shaped oil grooves under the action of shearing force, so that sufficient lubrication is formed between the outer arc surface of the axial roller retainer and the bearing outer sleeve flange, and the problem that the conventional retainer is scrapped due to serious abrasion is solved.
In order to realize the utility model aims at, the utility model adopts the following technical scheme: a three-row roller bearing comprises a bearing outer sleeve, a bearing inner sleeve A and a bearing inner sleeve B, wherein the bearing inner sleeve A and the bearing inner sleeve B are fixedly connected through bolts; the bearing outer sleeve is rotationally connected with the bearing inner sleeve A and the bearing inner sleeve B through an axial roller A, an axial roller B and a radial roller; a plurality of axial rollers A and a plurality of axial rollers B are uniformly distributed; a low-friction retainer for axial rollers of a three-row roller bearing is used for keeping a plurality of axial rollers of the three-row roller bearing isolated and preventing the axial rollers from contacting with each other to generate sliding abrasion in the running process of the three-row roller bearing; the axial rollers A are kept isolated by an axial roller retainer A, and the axial rollers B are kept isolated by an axial roller retainer B; the axial roller retainer A and the axial roller retainer B have the same structure, but have different specific dimensions.
Furthermore, the axial roller retainer A is arc-shaped plate-shaped, so that the material waste of the axial roller retainer A in the processing process is reduced, and the processing cost of the axial roller retainer A is reduced; in the process of assembling the three-row roller bearing shaft, the end surfaces of the two sides of the plurality of axial roller retainers A are mutually contacted to form a ring; the design of the separating structure of the axial roller retainer A can ensure that the force applied by the outer side end face of the axial roller A to the axial roller retainer A is transmitted to the bearing outer sleeve stop during the operation of the three-row roller bearing, thereby preventing the axial roller retainer A from generating structural damage.
Furthermore, the surface of the axial roller retainer A is uniformly provided with penetrating roller grooves, and in the process of assembling the three rows of roller bearings, the axial rollers A are rotatably arranged in the roller grooves; the outer arc surface of the axial roller retainer A is provided with a wave-shaped outer oil storage groove, the outer oil storage groove penetrates through the upper plate surface and the lower plate surface of the axial roller retainer A, and an outer oil outlet is formed in the upper plate surface and the lower plate surface; the inner arc surface of the axial roller retainer A is provided with a wave-shaped inner oil storage groove, the inner oil storage groove penetrates through the upper plate surface and the lower plate surface of the axial roller retainer A, and an inner oil outlet is formed on the upper plate surface and the lower plate surface; in the working process of the three-row roller bearing, lubricating grease is stored in the outer oil storage tank and the inner oil storage tank; when the three-row roller bearing works in a horizontal state, relative motion is generated between the outer arc surface of the axial roller retainer A and the flange of the bearing outer sleeve along with the rotation of the three-row roller bearing, and the relative motion enables the interior of lubricating grease stored in the outer oil storage tank to generate shearing motion, so that the lubricating grease stored in the outer oil storage tank is driven to move along the outer oil storage tank, and finally the lubricating grease flows out of the oil outlet and flows to the whole flange of the bearing outer sleeve in a curtain coating mode, so that sufficient lubrication is formed between the outer arc surface of the axial roller retainer A and the flange of the bearing outer sleeve; when the three-row roller bearing works in a vertical state, the axial roller retainer A has a sagging trend under the action of gravity, and at the moment, the outer oil storage tank and the inner oil storage tank simultaneously act; the inner oil storage groove of the axial roller retainer A moving to the upper part enables full lubrication to be formed between the inner arc surface of the axial roller retainer A and the flange of the bearing inner sleeve A, and the outer oil storage groove of the axial roller retainer A moving to the lower part enables full lubrication to be formed between the outer arc surface of the axial roller retainer A and the flange of the bearing outer sleeve; in addition, the outer oil storage groove and the inner oil storage groove of the axial roller retainer A also have the function of containing abrasive dust, in the long-term rotating working process of the three-row roller bearing, the axial roller retainer A, the bearing outer sleeve and the bearing inner sleeve A generate abrasive dust due to sliding friction, and most of the abrasive dust enters the outer oil storage groove and the inner oil storage groove along with the rotation of the three-row roller bearing, so that the further damage of the abrasive dust to the relative motion surface of the three-row roller bearing is reduced.
Further, outer arc-shaped bosses are uniformly distributed on the outer arc surface of the axial roller retainer A; inner arc-shaped bosses are uniformly distributed on the inner arc surface of the axial roller retainer A; the outer arc-shaped boss and the inner arc-shaped boss actually increase the oil storage space, the friction area between the axial roller retainer A and the flange of the bearing outer sleeve and the flange of the bearing inner sleeve A is reduced, and the starting torque is effectively reduced at the moment of the three-row roller bearing rotating and starting.
Furthermore, two side surfaces of the roller groove, which are in rotational contact with the axial roller A, are formed by a roller groove arc surface and a roller groove plane; the roller groove arc surface of the adjacent roller groove is opposite to the up-down arrangement direction of the roller groove plane, namely if the roller groove arc surface of one roller groove is arranged at the upper part, the roller groove arc surface of the adjacent roller groove is arranged at the lower part, and the axial roller retainer A is kept between the roller paths of the bearing outer sleeve and the bearing inner sleeve A after the axial roller A is assembled in the roller groove, so that the axial roller retainer A is prevented from deviating to the roller path at one side.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a low friction retainer for three-row roller bearing axial rollers; the axial roller retainer is arc-shaped plate-shaped; in the process of assembling the three-row roller bearing, the end surfaces of the two sides of the plurality of axial roller retainers are mutually contacted to form a ring; the axial roller retainer is characterized in that the plate surface of the axial roller retainer is uniformly provided with penetrating roller grooves, and in the process of assembling the three rows of roller bearings, the axial rollers are rotationally arranged in the roller grooves; wave-shaped oil grooves are arranged on the outer arc surface and the inner arc surface of the axial roller retainer, and penetrate through the upper plate surface and the lower plate surface of the axial roller retainer to form oil outlets on the upper plate surface and the lower plate surface; arc-shaped bosses are uniformly distributed on the outer arc surface and the inner arc surface of the axial roller retainer, when the three-row roller bearing works, the arc-shaped bosses on the outer arc surface of the axial roller retainer are contacted with the flanges of the bearing outer sleeve, and a lubricating grease storage space between the outer arc surface of the axial roller retainer and the flanges of the bearing outer sleeve is enlarged; in the running process of the roller cage bearing, lubricating grease is cast to the whole bearing outer sleeve flange from the oil outlets on the upper and lower plate surfaces through the wave-shaped oil grooves under the action of shearing force, so that sufficient lubrication is formed between the outer arc surface of the axial roller cage and the bearing outer sleeve flange, the service life of the axial roller cage is ensured, and the problem that the prior cage is scrapped due to serious abrasion is solved.
Drawings
FIG. 1 is a schematic view of an assembly structure of a three-row roller bearing;
FIG. 2 is a schematic view of an assembly structure of an axial roller cage A and an axial roller A;
FIG. 3 is a first external view of an axial roller cage A;
FIG. 4 is a second external view of the axial roller cage A;
FIG. 5 is a schematic rotational cross-sectional view of a roller groove.
In the figure: 1. a bearing housing; 2. a bearing inner sleeve A; 3. a bearing inner sleeve B; 4. an axial roller A; 5. an axial roller B; 6. a radial roller; 7. an axial roller cage A; 7.1, roller grooves; 7.1.1, roller groove arc surface; 7.1.2, roller groove plane; 7.2, an external oil storage groove; 7.3, an oil outlet; 7.4, an outer arc boss; 7.5, an inner oil storage groove; 7.6, an inner oil outlet; 7.7, an inner arc boss; 8. an axial roller cage B.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
A three-row roller bearing comprises a bearing outer sleeve 1, a bearing inner sleeve A2 and a bearing inner sleeve B3, wherein the bearing inner sleeve A2 and the bearing inner sleeve B3 are fixedly connected through bolts; the bearing outer sleeve 1 is rotationally connected with the bearing inner sleeve A2 and the bearing inner sleeve B3 through an axial roller A4, an axial roller B5 and a radial roller 6; 120 axial rollers A4 and B5 are uniformly distributed; a low-friction retainer for axial rollers of a three-row roller bearing is used for keeping the isolation between 120 axial rollers A4 and B5 of a three-row roller bearing shaft; the 120 axial rollers a4 are held in isolation by an axial roller cage a 7; the 120 axial rollers B5 are held in isolation by an axial roller cage B8; the axial roller cage A7 and the axial roller cage B8 have the same structure;
the axial roller retainer A7 is arc-shaped plate-shaped; in the process of assembling the three-row roller bearing, the end faces of two sides of the 12 axial roller retainer A7 are mutually contacted to form a ring; 10 penetrating roller grooves 7.1 are uniformly distributed on the plate surface of the axial roller retainer A7, and in the assembly process of the three-row roller bearing, the axial rollers A4 are rotationally arranged in the roller grooves 7.1; the two side surfaces of the roller groove 7.1, which are in rotational contact with the axial roller A4, are composed of a roller groove arc surface 7.1.1 and a roller groove plane 7.1.2; the roller groove arc surface 7.1.1 of the adjacent roller groove 7.1 and the roller groove plane 7.1.2 are arranged in opposite directions up and down; the outer arc surface of the axial roller retainer A7 is provided with a wave-shaped outer oil storage tank 7.2, the outer oil storage tank 7.2 penetrates through the upper plate surface and the lower plate surface of the axial roller retainer A7, and an outer oil outlet 7.3 is formed in the upper plate surface and the lower plate surface; the inner arc surface of the axial roller retainer A7 is provided with a wave-shaped inner oil storage tank 7.5, the inner oil storage tank 7.5 penetrates through the upper and lower plate surfaces of the axial roller retainer A7, and an inner oil outlet 7.6 is formed on the upper and lower plate surfaces; outer arc-shaped bosses 7.4 are uniformly distributed on the outer arc surface of the axial roller retainer A7; and inner arc-shaped bosses 7.7 are uniformly distributed on the inner arc surface of the axial roller retainer A7.
The part of the utility model not detailed is prior art.
Claims (5)
1. A low-friction retainer for axial rollers of a three-row roller bearing comprises a bearing outer sleeve (1), a bearing inner sleeve A (2) and a bearing inner sleeve B (3), wherein the bearing inner sleeve A (2) and the bearing inner sleeve B (3) are fixedly connected through bolts; the bearing outer sleeve (1) is rotationally connected with the bearing inner sleeve A (2) and the bearing inner sleeve B (3) through an axial roller A (4), an axial roller B (5) and a radial roller (6); axial roller A (4), axial roller B (5) equipartition are provided with a plurality of, characterized by: the axial roller bearing is used for keeping the isolation between a plurality of axial rollers A (4) and axial rollers B (5) of the three-row roller bearing; the axial rollers A (4) are kept isolated by an axial roller retainer A (7); the plurality of axial rollers B (5) are kept isolated by an axial roller retainer B (8); the axial roller retainer A (7) and the axial roller retainer B (8) have the same structure.
2. The low-friction cage for the axial rollers of a triple-row roller bearing according to claim 1, wherein: the axial roller retainer A (7) is arc-shaped plate-shaped; in the process of assembling the three-row roller bearing shaft, the end surfaces of the two sides of the plurality of axial roller retainers A (7) are mutually contacted to form a ring.
3. The low-friction cage for the axial rollers of a triple-row roller bearing according to claim 2, wherein: the axial roller retainer A (7) is characterized in that penetrating roller grooves (7.1) are uniformly distributed on the surface of the axial roller retainer A (7), and in the assembly process of the three-row roller bearing shaft, the axial rollers A (4) are rotatably arranged in the roller grooves (7.1); a wavy outer oil storage groove (7.2) is formed in the outer arc surface of the axial roller retainer A (7), the outer oil storage groove (7.2) penetrates through the upper plate surface and the lower plate surface of the axial roller retainer A (7), and an outer oil outlet (7.3) is formed in the upper plate surface and the lower plate surface; the inner arc surface of the axial roller retainer A (7) is provided with a wave-shaped inner oil storage groove (7.5), the inner oil storage groove (7.5) penetrates through the upper plate surface and the lower plate surface of the axial roller retainer A (7), and an inner oil outlet (7.6) is formed in the upper plate surface and the lower plate surface.
4. The low-friction cage for the axial rollers of a triple-row roller bearing according to claim 2, wherein: outer arc-shaped bosses (7.4) are uniformly distributed on the outer arc surface of the axial roller retainer A (7); inner arc-shaped bosses (7.7) are uniformly distributed on the inner arc surface of the axial roller retainer A (7).
5. The low-friction cage for the axial rollers of a triple-row roller bearing according to claim 3, wherein: the two side faces of the roller groove (7.1) in rotational contact with the axial roller A (4) are composed of a roller groove arc surface (7.1.1) and a roller groove plane (7.1.2); the roller groove arc surface (7.1.1) of the adjacent roller groove (7.1) and the roller groove plane (7.1.2) are arranged in opposite directions up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020322211.8U CN212155484U (en) | 2020-03-16 | 2020-03-16 | Low-friction retainer for axial rollers of three-row roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020322211.8U CN212155484U (en) | 2020-03-16 | 2020-03-16 | Low-friction retainer for axial rollers of three-row roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155484U true CN212155484U (en) | 2020-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020322211.8U Active CN212155484U (en) | 2020-03-16 | 2020-03-16 | Low-friction retainer for axial rollers of three-row roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155484U (en) |
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2020
- 2020-03-16 CN CN202020322211.8U patent/CN212155484U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |