CN216922847U

CN216922847U - Dustproof sealing type thrust ball bearing

Info

Publication number: CN216922847U
Application number: CN202122732930.4U
Authority: CN
Inventors: 杨建国
Original assignee: Wuxi Qinying Machinery Co ltd
Current assignee: Wuxi Qinying Machinery Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-07-08
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a dustproof sealing type thrust ball bearing, which relates to the technical field of thrust ball bearings and comprises shaft rings and a retainer, wherein the number of the shaft rings is two, the two shaft rings are respectively arranged at the left side and the right side of the retainer, a plurality of ball grooves are uniformly formed in the retainer, balls are connected in the ball grooves in a rolling manner, a sealing ring for dustproof sealing is welded on the outer circumferential surface of the retainer, an annular oil cavity for lubrication is formed in the sealing ring, a plurality of overflow pipes are uniformly inserted into the inner circumferential surface of the annular oil cavity, and the left end and the right end of each ball penetrates through the retainer and are respectively in rolling connection with the inner side surfaces of the two shaft rings. Through welding the sealing ring on the outer periphery of retainer, the left and right sides of sealing ring extends into the ring channel of two shaft collars respectively again to set up the sponge ring again between sealing ring and the ring channel, make the sealing ring can seal the periphery of retainer with this, thereby prevent that the dust from falling into on the ball.

Description

Dustproof sealing type thrust ball bearing

Technical Field

The utility model relates to the technical field of thrust ball bearings, in particular to a dustproof sealing type thrust ball bearing.

Background

The thrust ball bearing adopts the design of bearing thrust load when running at high speed, the thrust ball bearing is only suitable for bearing one side of the machine member with axial load and lower rotating speed, and the shaft ring and the rolling body of the bearing are separated and can be respectively assembled and disassembled.

Because the split structure is arranged between the shaft ring and the rolling body of the thrust ball bearing, the dustproof sealing performance of the thrust ball bearing is poor, if the thrust ball bearing is used in a dusty environment, dust easily falls into the rolling body, lubrication of the rolling body is affected, abrasion of the rolling body is aggravated, and the service life of the thrust ball bearing is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dustproof sealing type thrust ball bearing to solve the problem that the thrust ball bearing provided by the background technology is poor in dustproof sealing performance.

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

a dustproof sealing type thrust ball bearing comprises two shaft rings and a retainer, wherein the two shaft rings are respectively arranged on the left side and the right side of the retainer;

the novel oil-saving bearing is characterized in that a plurality of ball grooves are uniformly formed in the retainer, balls are connected in the ball grooves in a rolling mode, a sealing ring used for dust-proof sealing is welded on the outer circumferential surface of the retainer, an annular oil cavity used for lubricating is formed in the sealing ring, and a plurality of overflow pipes are uniformly inserted into the inner circumferential surface of the annular oil cavity in an inserted mode.

Furthermore, the left end and the right end of each ball penetrate through the retainer and are respectively in rolling connection with the inner side surfaces of the two shaft rings.

Furthermore, two opposite surfaces of the shaft rings are provided with annular grooves, and the inner ends of the left side surface and the right side surface of the sealing ring extend into the annular grooves on the same side respectively.

Furthermore, sponge rings are bonded at the inner ends of the left side surface and the right side surface of the sealing ring, and the outer side surfaces of the sponge rings on the left side and the right side are respectively attached to the groove bottoms of the annular grooves on the same side.

Furthermore, a plurality of first sponge strips are bonded on the inner side surfaces of the sponge rings on the left side and the right side, and the inner ends of the first sponge strips on the left side and the right side penetrate through the annular oil cavity.

Furthermore, the inner ends of the overflow pipes respectively penetrate through the insides of the ball grooves, the inner ends inside the overflow pipes are connected with overflow balls in a rolling mode, and the inner ends of the overflow balls extend out of the overflow pipes and are connected with the balls on the same side in a rolling mode.

Furthermore, a second sponge strip is bonded inside the overflow pipe and located on the outer side of the overflow bead, and the outer end of the second sponge strip penetrates through the overflow pipe and extends into the annular oil cavity.

Furthermore, an oil filling hole is formed in the top of the interior of the annular oil cavity, and a sealing plug is plugged in the oil filling hole.

Compared with the prior art, the utility model has the following beneficial effects:

by welding the sealing rings on the outer circumferential surface of the retainer, the left and right sides of each sealing ring respectively extend into the annular grooves of the two shaft rings, and the sponge rings are arranged between the sealing rings and the annular grooves, so that the sealing rings can seal the periphery of the retainer through the structure, and dust is prevented from falling onto the balls;

through set up annular oil pocket on the retainer, lubricating oil in the annular oil pocket can be when the ball rolls, can overflow lubricating oil and lubricate toward the ball, then through this kind of mode, can be simple and convenient add lubricating oil to the ball.

Drawings

Fig. 1 is a schematic view of the overall internal structure of the present invention.

FIG. 2 is an enlarged view of a portion of FIG. 1 according to the present invention.

FIG. 3 is an enlarged view of a portion of FIG. 1B according to the present invention.

Fig. 4 is a schematic structural view of the side surface of the retainer of the present invention.

In FIGS. 1-4: 1-a shaft ring, 101-an annular groove, 2-a retainer, 201-a ball groove, 3-balls, 4-a sealing ring, 401-an annular oil cavity, 402-an oil filling hole, 5-a sponge ring, 6-a first sponge strip, 7-an overflow pipe, 8-an oil overflow ball, 9-a second sponge strip and 10-a sealing plug.

Detailed Description

Please refer to fig. 1 to 4:

the utility model provides a dustproof sealing type thrust ball bearing, which comprises shaft rings 1 and a retainer 2, wherein the number of the shaft rings 1 is two, the two shaft rings 1 are respectively arranged at the left side and the right side of the retainer 2, a plurality of ball grooves 201 are uniformly formed in the retainer 2, balls 3 are connected in the ball grooves 201 in a rolling manner, a sealing ring 4 for dustproof sealing is welded on the outer circumferential surface of the retainer 2, an annular oil cavity 401 for lubrication is formed in the sealing ring 4, and a plurality of overflow pipes 7 are uniformly inserted into the inner circumferential surface of the annular oil cavity 401;

specifically, the left end and the right end of each ball 3 penetrate through the retainer 2 and are respectively in rolling connection with the inner side surfaces of the two shaft rings 1, the annular grooves 101 are formed in the opposite surfaces of the two shaft rings 1, the inner ends of the left side surface and the right side surface of the sealing ring 4 respectively extend into the annular grooves 101 in the same side, the inner ends of the left side surface and the right side surface of the sealing ring 4 are respectively bonded with sponge rings 5, and the outer side surfaces of the sponge rings 5 in the left side and the right side are respectively attached to the groove bottoms of the annular grooves 101 in the same side;

by welding the sealing ring 4 on the outer circumferential surface of the retainer 2, the left side and the right side of the sealing ring 4 respectively extend into the annular grooves 101 of the two shaft rings 1, and the sponge ring 5 is arranged between the sealing ring 4 and the annular grooves 101, and the sponge ring 5 can eliminate gaps and improve the sealing effect, so that by the structure, the sealing ring 4 can seal the periphery of the retainer 2, thereby preventing dust from falling onto the balls 3 and avoiding the dust from influencing the lubrication of the balls 3;

according to the above, the inner side surfaces of the sponge rings 5 on the left side and the right side are both bonded with a plurality of first sponge strips 6, the inner ends of the first sponge strips 6 on the left side and the right side are both penetrated into the annular oil cavity 401, the inner ends of a plurality of overflow pipes 7 are respectively penetrated into a plurality of ball grooves 201, the inner ends inside the overflow pipes 7 are connected with overflow balls 8 in a rolling manner, the inner ends of the overflow balls 8 extend out of the overflow pipes 7 and are connected with balls 3 on the same side in a rolling manner, second sponge strips 9 are bonded inside the overflow pipes 7, the second sponge strips 9 are positioned on the outer sides of the overflow balls 8, the outer ends of the second sponge strips 9 penetrate out of the overflow pipes 7 and extend into the annular oil cavity 401, the top inside the annular oil cavity 401 is provided with an oil filling hole 402, and the oil filling hole 402 is filled with a sealing plug 10;

specifically, when the sealing plug 10 is pulled out, lubricating oil can be added into the annular oil cavity 401 through the oil filling hole 402, and the first sponge strip 6 can absorb the lubricating oil in the annular oil cavity 401 and transmit the lubricating oil to the sponge ring 5, so that the lubricating oil is stored between the sponge ring 5 and the annular groove 101 for lubrication, and the lubricating oil further has a sealing effect;

the second sponge strip 9 can also absorb the lubricating oil in the annular oil cavity 401, when the ball 3 rolls, the rolling 3 can drive the oil overflow bead 8 to roll, so that the rolling oil overflow bead 8 can extrude the inner end of the second sponge strip 9 with the lubricating oil, the lubricating oil at the inner end of the second sponge strip 9 is extruded out, and the extruded lubricating oil overflows to the ball 3 through the overflow pipe 7, so that the lubricating oil is added to the ball 3;

therefore, through the mode, the lubricating oil can be simply and conveniently added to the sponge ring 5 and the balls 3.

Claims

1. The utility model provides a dustproof sealing type thrust ball bearing, includes race (1) and holder (2), the quantity of race (1) is two, two the left and right sides at holder (2) is installed respectively in race (1), its characterized in that:

a plurality of ball groove (201) have evenly been seted up to the inside of holder (2), roll movable connection has ball (3) in ball groove (201), the outer periphery welding of holder (2) has sealing ring (4) that are used for dust seal, annular oil pocket (401) that are used for the lubrication are seted up to the inside of sealing ring (4), the inside inboard periphery of annular oil pocket (401) is evenly pegged graft and is had a plurality of overflow pipes (7).

2. The dust seal type thrust ball bearing according to claim 1, wherein: the left end and the right end of each ball (3) penetrate through the retainer (2) and are respectively in rolling connection with the inner side surfaces of the two shaft rings (1).

3. The dust seal type thrust ball bearing according to claim 1, wherein: two the annular groove (101) have all been seted up to the relative one side of shaft collar (1), the inner of sealing ring (4) left and right sides face extends respectively into homonymy in annular groove (101).

4. The dust seal type thrust ball bearing according to claim 3, wherein: sponge rings (5) are bonded at the inner ends of the left side surface and the right side surface of the sealing ring (4), the outer side surfaces of the sponge rings (5) on the left side and the right side are respectively attached to the groove bottoms of the annular grooves (101) on the same side.

5. The dust seal type thrust ball bearing according to claim 4, wherein: the inner side surfaces of the sponge rings (5) on the left side and the right side are all bonded with a plurality of first sponge strips (6), and the inner ends of the first sponge strips (6) on the left side and the right side penetrate through the interior of the annular oil cavity (401).

6. The dust seal type thrust ball bearing according to claim 1, wherein: the inner ends of the overflow pipes (7) penetrate through the ball grooves (201) respectively, the inner ends of the overflow pipes (7) are connected with overflow balls (8) in a rolling mode, and the inner ends of the overflow balls (8) extend out of the overflow pipes (7) and are connected with the balls (3) on the same side in a rolling mode.

7. The dust seal type thrust ball bearing according to claim 6, wherein: a second sponge strip (9) is bonded inside the overflow pipe (7), the second sponge strip (9) is located on the outer side of the overflow bead (8), and the outer end of the second sponge strip (9) penetrates through the overflow pipe (7) and extends into the annular oil cavity (401).

8. The dust seal type thrust ball bearing according to claim 1, wherein: an oil filling hole (402) is formed in the top of the interior of the annular oil cavity (401), and a sealing plug (10) is plugged in the oil filling hole (402).