CN216044982U

CN216044982U - Roller bearing with good heat dissipation performance

Info

Publication number: CN216044982U
Application number: CN202122136773.0U
Authority: CN
Inventors: 林亚达
Original assignee: Zhejiang Gaojing Automation Technology Co ltd
Current assignee: Zhejiang Gaojing Automation Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-15
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of roller bearings and discloses a roller bearing with good heat dissipation performance, which comprises an inner ring, a retainer, a roller, an outer ring and two oil seals, wherein the roller is positioned inside the retainer, the inner ring is connected with the outer ring through the roller, the oil seals are positioned between the inner ring and the outer ring, a communicating groove and a branch flow passage are formed inside the retainer, and an annular flow passage is formed inside the retainer. This good heat dissipation's roller bearing, through the inner circle, the holder, the roller, the outer lane, the oil blanket, the oil duct, the intercommunication groove, the subchannel, logical groove, the annular flow way, the intercommunicating pore, mutually supporting between oil inlet and the oil outlet tank, reached and changed emollient and added the point, make emollient can fully and interior outer lane raceway surface contact, for it provides good lubricated effect when the bearing operation, solved current ball bearing when adding emollient, emollient is difficult to fully get into in the outer lane raceway, thereby lead to the not good problem of bearing lubrication effect.

Description

Roller bearing with good heat dissipation performance

Technical Field

The utility model relates to the technical field of ball bearings, in particular to a roller bearing with good heat dissipation.

Background

A roller bearing is one of the roller bearings whose rollers are thin and long with a small cross section with respect to their diameter, which has a high load-bearing capacity and therefore a compact radial configuration, whose inner diameter size and load-bearing capacity are the same as those of other types of bearings, and whose outer diameter is the smallest, and which is particularly suitable for bearing arrangements in which the radial installation size is limited.

After the ball bearing is used for a period of time, the conditions of difficult bearing operation, internal abnormal sound, scratches of inner and outer raceways of the bearing, indentation of a rolling body and the like can occur, and the reasons for the conditions are various, but the most common reason is fretting wear, which is a molecular wear process, namely, two contact surfaces carry out reciprocating motion of tiny displacement under vertical load, so that the contact surfaces are close to the degree of acting of van der waals force, thereby causing the material to be separated from a parent body and then oxidized, and reducing the influence of fretting wear on the bearing, which can be started from the aspect of improving the material characteristics, can reduce the influence of fretting friction by improving the lubricating effect of the bearing, and good lubrication can ensure that an oil film is formed between a roller and the raceways, reduce the friction factor, reduce the friction work and prevent the generation of wear, but when the existing roller bearing is added with a lubricant, only the amount of lubricant added is controlled, and the position of lubricant added is ignored, so when adding lubricant to the bearing, a large amount of lubricant is accumulated and attached to the end surfaces of the roller and the inner and outer rings, and only a small amount of lubricant permeates into the inner and outer ring raceways from the gap between the roller and the inner and outer rings, which not only fails to achieve good lubricating effect, but also wastes a large amount of lubricant.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the roller bearing with good heat dissipation, which has the advantages of changing the lubricant adding point, enabling the lubricant to be in full contact with the inner and outer ring raceway surfaces, and providing good lubricating effect when the bearing operates, and solves the problem that the lubricating effect of the bearing is poor because the lubricant is difficult to fully enter the inner and outer ring raceways when the lubricant is added to the existing ball bearing.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the roller bearing with good heat dissipation performance comprises an inner ring, a retainer, a roller, an outer ring and two oil seals, wherein the roller is located inside the retainer, the inner ring is connected with the outer ring through the roller, the oil seals are located between the inner ring and the outer ring, a communicating groove and a shunting channel are formed in the retainer, an annular flow channel is formed in the retainer, a through groove is formed in the retainer, communicating holes are formed in the inner top wall and the inner bottom wall of the through groove, an oil inlet is formed in the inner wall, away from one side of the roller, of the through groove, an oil channel is formed in the oil seal, an oil outlet groove is formed in the retainer, and the inside of the oil outlet groove is communicated with the inside of the communicating groove.

Preferably, the oil outlet groove comprises a smooth section and a contraction section, the inside of the smooth section is communicated with the inside of the communication groove, the inside of the contraction section is communicated with the outside of the retainer, a port of the contraction section can directly send the lubricant into the inner ring raceway surface and the outer ring raceway surface, a port of the contraction section, which is far away from the communication groove, is arranged on the inner wall and the side surface of the retainer, and the radius of the port is smaller, so that the oil outlet amount of the lubricant can be effectively reduced.

Preferably, a baffle is arranged inside the through groove, the right side of the baffle abuts against the inner wall on the right side of the through groove, so that the oil inlet is blocked, and a positioning rod is fixedly connected to the left side of the baffle and movably connected with the inside of the retainer.

Preferably, the inner wall of the left side of the through groove is provided with a positioning hole, the positioning rod is located inside the positioning hole, the positioning rod and the positioning hole limit the moving direction of the baffle plate together, the baffle plate can only move along the axial direction of the positioning rod after being stressed, and the baffle plate is connected with the inner wall of the through groove through a spring.

Preferably, the top and the bottom of the baffle are both fixedly connected with a partition plate, a moving groove is formed in the retainer, the partition plate is located in the moving groove, when the right side of the baffle abuts against the inner wall on the right side of the through groove, the right side of the partition plate abuts against the inner wall on the right side of the communicating hole, so that the communicating hole is separated, and the sub-runner and the through groove are divided into two independent spaces.

Preferably, an oil inlet pipe is arranged on the right side of the baffle, a conical plate is arranged at the right end of the oil inlet pipe, an oil inlet hole is formed in the center of the conical plate, an oil outlet hole is formed in the inner wall of the oil inlet pipe, after an injection port of the lubricant injection device is tightly abutted to the right end of the oil injection pipe, the baffle is pushed leftwards, lubricant in the injection device enters the oil inlet pipe through an oil inlet, and then the lubricant can enter the through groove from the oil outlet and sequentially enters the raceway surfaces of the inner ring and the outer ring through the communication hole, the branch flow passage, the annular flow passage, the communication groove and the oil outlet groove.

Compared with the prior art, the utility model provides the roller bearing with good heat dissipation, which has the following beneficial effects:

1. this good heat dissipation's roller bearing, through the inner circle, the holder, the roller, the outer lane, the oil blanket, the oil duct, the intercommunication groove, the subchannel, logical groove, the annular flow way, the intercommunicating pore, mutually supporting between oil inlet and the oil outlet tank, reached and changed emollient and added the point, make emollient can fully and interior outer lane raceway surface contact, for it provides good lubricated effect when the bearing operation, solved current ball bearing when adding emollient, emollient is difficult to fully get into in the outer lane raceway, thereby lead to the not good problem of bearing lubrication effect.

2. This good heat dissipation's roller bearing, through leading to the groove, the baffle, the locating lever, the locating hole, a spring, the baffle, the shifting chute, advance oil pipe, the toper board, mutually support between inlet port and the oil outlet, when the equipment of injection lubricator promoted the baffle and move left, can avoid the injection port by the baffle shutoff, reached the effect that prevents the injection port of emollient syringe by the baffle shutoff, solved after the syringe inserts the oil duct, the syringe promotes the baffle and moves left, the injection port probably is by the problem of baffle shutoff.

Drawings

FIG. 1 is a side cross-sectional view of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

fig. 3 is a schematic view of the structure of the cage of the present invention.

Wherein: 1. an inner ring; 2. a holder; 3. a roller; 4. an outer ring; 5. oil sealing; 6. an oil passage; 7. a communicating groove; 8. a shunt channel; 9. a through groove; 10. an annular flow passage; 11. a communicating hole; 12. an oil inlet; 13. an oil outlet groove; 14. a baffle plate; 15. positioning a rod; 16. positioning holes; 17. a spring; 18. a partition plate; 19. a moving groove; 20. an oil inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a roller bearing with good heat dissipation includes an inner ring 1, a holder 2, a roller 3, an outer ring 4 and two oil seals 5, the roller 3 is located inside the holder 2, the inner ring 1 is connected with the outer ring 4 through the roller 3, the inner ring 1 is located inside the holder 2, the holder 2 is located inside the outer ring 4, the oil seals 5 are located between the inner ring 1 and the outer ring 4, the oil seals 5 are self-tightening springs completely covered by rubber, the oil seals 5 on the left and right sides seal the gap between the inner ring 1 and the outer ring 4 to prevent external sundries from entering the bearing, the holder 2 is provided with a communicating groove 7 and a branch flow passage 8, the communicating groove 7 is communicated with the branch flow passage 8, the holder 2 is provided with an annular flow passage 10, the annular flow passage 10 is communicated with the branch flow passage 8, the annular flow passage 10 communicates the branch flow passages 8 into a whole, when one sub-runner is filled with the lubricant, the redundant lubricant can flow to the rest sub-runners 8 through the annular runner 10, and the through groove 9 is formed in the retainer 2.

The inside of leading to groove 9 is provided with baffle 14, the left side fixedly connected with locating lever 15 of baffle 14, locating lever 15 and holder 2's inside swing joint, leading to the left inner wall of groove 9 and having seted up locating hole 16, locating lever 15 is located the inside of locating hole 16, baffle 14 passes through spring 17 and the inner wall connection who leads to groove 9, spring 17's left end and the left inner wall fixed connection who leads to groove 9, spring 17's right-hand member and baffle 14's left side fixed connection, locating lever 15 is located spring 17's inside, baffle 14's the equal fixedly connected with baffle 18 in top and bottom, shifting chute 19 has been seted up to holder 2's inside, the inside of shifting chute 19 and the inside intercommunication of intercommunicating pore 11, baffle 18 is located the inside of shifting chute 19, baffle 14's right side is provided with into oil pipe 20, the right-hand member of into oil pipe 20 is provided with the conical plate, the inlet port has been seted up to the center department of conical plate, the oil outlet has been seted up to the inner wall of into oil pipe 20.

The inner top wall and the inner bottom wall of the through groove 9 are both provided with communicating holes 11, the communicating holes 11 communicate the inside of the through groove 9 with the inside of the sub-runner 8, the inner wall of the through groove 9 far away from one side of the roller 3 is provided with an oil inlet 12, the inside of the oil seal 5 is provided with an oil duct 6, the oil seal 5 is made of rubber and has good flexibility, when no foreign object is inserted into the oil duct 6, the oil duct 6 is in a shrinking closed state, the inside of the retainer 2 is provided with an oil outlet groove 13, the inside of the oil outlet groove 13 is communicated with the inside of the communicating groove 7, the oil outlet groove 13 comprises a smooth section and a contraction section, the smooth section is communicated with the contraction section, the inside of the smooth section is communicated with the inside of the communicating groove 7, the inside of the contraction section is communicated with the outside of the retainer 2, and the roller 2, the inner ring 3, the outer ring 4, the oil seal 5, the oil duct 6, the communicating groove 7, the sub-runner 8, the through groove 9, the through the annular runner 10, The intercommunicating pore 11, the oil inlet 12 and the oil outlet groove 13 are mutually matched, so that a lubricant adding point is changed, the lubricant can be fully contacted with the inner ring raceway and the outer ring raceway, a good lubricating effect is provided for the bearing during the operation of the bearing, and the problem that the lubricating effect of the bearing is not good due to the fact that the lubricant is difficult to fully enter the inner ring raceway and the outer ring raceway when the lubricant is added to the existing ball bearing is solved.

When lubricant is added into the bearing, firstly, an injection head of a needle type lubricant injector is inserted into the oil duct 6, the baffle plate 14 is pushed to move left, after the baffle plate 14 moves to the farthest position leftwards, the communicating hole 11 is recovered to be smooth, the inside of the through groove 9 is communicated with the inside of the branch flow passage 8, then the needle type lubricant injector is controlled to inject the lubricant into the oil inlet pipe 20, after the lubricant enters the oil inlet pipe 20, the lubricant is gradually filled in the oil inlet pipe 20, then the lubricant enters the inside of the through groove 9 through the oil outlet hole and enters the oil outlet groove 13 through the communicating hole 11, the branch flow passage 8, the annular flow passage 10 and the communicating groove 7 in sequence, because the oil outlet grooves 13 are arranged on the upper side and the lower side of the communicating groove 7, the lubricant can respectively enter the inner ring raceway and the outer ring raceway through the oil outlet grooves 13 on the two sides, and finally, the lubricant can be uniformly coated in the raceways only by rotating the bearing, so that an oil film is formed between the rollers 3 and the raceways to reduce friction between the parts.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The roller bearing with good heat dissipation performance comprises an inner ring (1), a retainer (2), rollers (3), an outer ring (4) and two oil seals (5), wherein the rollers (3) are located inside the retainer (2), the inner ring (1) is connected with the outer ring (4) through the rollers (3), and the oil seals (5) are located between the inner ring (1) and the outer ring (4), and is characterized in that: the oil seal structure is characterized in that a communicating groove (7) and a sub-channel (8) are formed in the retainer (2), an annular flow channel (10) is formed in the retainer (2), a through groove (9) is formed in the retainer (2), communicating holes (11) are formed in the inner top wall and the inner bottom wall of the through groove (9), an oil inlet (12) is formed in the inner wall, away from one side of the roller (3), of the through groove (9), an oil duct (6) is formed in the oil seal (5), an oil outlet groove (13) is formed in the retainer (2), and the inside of the oil outlet groove (13) is communicated with the inside of the communicating groove (7).

2. A heat-dissipating roller bearing in accordance with claim 1, wherein: the oil outlet groove (13) comprises a smooth section and a contraction section, the interior of the smooth section is communicated with the interior of the communication groove (7), and the interior of the contraction section is communicated with the exterior of the retainer (2).

3. A heat-dissipating roller bearing in accordance with claim 1, wherein: a baffle (14) is arranged in the through groove (9), a positioning rod (15) is fixedly connected to the left side of the baffle (14), and the positioning rod (15) is movably connected with the inside of the retainer (2).

4. A heat-dissipating roller bearing in accordance with claim 3, wherein: the inner wall of the left side of the through groove (9) is provided with a positioning hole (16), the positioning rod (15) is located inside the positioning hole (16), and the baffle (14) is connected with the inner wall of the through groove (9) through a spring (17).

5. A heat-dissipating roller bearing in accordance with claim 3, wherein: the top and the bottom of the baffle (14) are both fixedly connected with a partition plate (18), a moving groove (19) is formed in the retainer (2), and the partition plate (18) is located in the moving groove (19).

6. A heat-dissipating roller bearing in accordance with claim 3, wherein: the right side of baffle (14) is provided with into oil pipe (20), the right-hand member of advancing oil pipe (20) is provided with the toper board, the inlet port has been seted up to the center department of toper board, the oil outlet has been seted up to the inner wall of advancing oil pipe (20).