CN212106627U

CN212106627U - Durable low-noise eccentric stop ball bearing

Info

Publication number: CN212106627U
Application number: CN202020831464.8U
Authority: CN
Inventors: 李建平
Original assignee: Jinfa Bearing Co ltd
Current assignee: Jinfa Bearing Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-08
Anticipated expiration: 2030-05-18
Also published as: WO2021232880A1

Abstract

The utility model belongs to the technical field of ball bearings, in particular to a durable low-noise eccentric locking ball bearing, which comprises an outer ring, the outer side wall of the outer ring is provided with a locking groove, the inner cavity of the locking groove is provided with a locking ring, the inner side of the outer ring is provided with an inner ring, the inner side wall of the outer ring is provided with a roller way, the outer surface of the inner ring is provided with a sliding groove matched with the roller way, the roller way and the sliding groove are movably connected with a rolling body, the left side and the right side of the rolling body are both provided with a retainer, the edges of the left side and the right side of the inner side wall of the outer ring are both provided with a first mounting groove, the left side and the right side of the outer side surface of the inner ring are both provided with a second mounting groove matched with the first mounting, the bearing is not influenced by the working environment.

Description

Durable low-noise eccentric stop ball bearing

Technical Field

The utility model relates to a ball bearing technical field specifically is a durable low noise eccentric locking ball bearing.

Background

The eccentric bearing is a very useful bearing type and mainly comprises an outer ring, an inner ring, a retainer and a rolling body, the eccentric bearing is simple in structure and convenient to use, the eccentric function can be realized without an eccentric shaft, and the manufacturing cost of an eccentric mechanism is reduced.

In the use process of a traditional eccentric bearing, due to the fact that the difference of linear expansion systems is large or the size precision of an installation environment is poor, a series of problems that the bearing slips, the noise of the bearing is large and the like are prone to occurring, the service life of the bearing is greatly reduced, and therefore a durable low-noise eccentric stop ball bearing is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a durable low noise eccentric locking ball bearing to the too big problem of phenomenon of skidding and bearing function in-process noise appears in the bearing function in-process that proposes among the solution above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a durable low noise eccentric locking ball bearing, includes the outer loop, the locking groove has been seted up to the lateral wall of outer loop, the locking ring is installed to the inner chamber of locking groove, the inboard of outer loop is provided with the inner ring, the raceway has been seted up to the inside wall of outer loop, the surface of inner ring seted up with raceway assorted spout, the raceway with swing joint has the rolling element between the spout, the holder is all installed to the left and right sides of rolling element, first mounting groove has all been seted up at the left and right sides edge of outer loop inside wall, the left and right sides of the outside face of inner ring all seted up with first mounting groove assorted second mounting groove, it has the sealing washer to embed between first mounting groove and the second mounting groove, the bottom of sealing washer is provided.

Preferably, the rolling body is spherical, and the rolling body is made of silicon nitride ceramics.

Preferably, the sound absorbing plate is screwed on the outer surface of the inner ring.

Preferably, the stop ring is a C-shaped split wire retainer ring, and the manufacture standard of the stop ring is GB/T305-1998.

Preferably, the upper end and the lower end of the rolling body are respectively in two-point contact with the raceway and the sliding groove, and the contact angle is 90 degrees.

Preferably, the inner hole of the inner ring is an eccentric hole, and the top of the inner side wall of the eccentric hole is provided with a key slot.

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

1. according to the durable low-noise eccentric locking ball bearing, the sound-absorbing plate is in threaded connection with the outer edge surface of the inner ring, the upper end and the lower end of the sealing ring are respectively and tightly attached to the first mounting groove and the second mounting groove by using tools, noise generated in the bearing operation process is effectively absorbed, and corresponding working efficiency can be achieved only by disassembling the lower sealing ring and the sound-absorbing plate and adding bearing grease at the later stage of use, so that the use is convenient and fast, and the service life of the bearing is greatly prolonged;

2. according to the durable low-noise eccentric locking ball bearing, the locking groove is formed in the outer side wall of the outer ring, and the locking ring is arranged in the locking groove, so that the bearing is effectively prevented from slipping in the operation process, the bearing is guaranteed not to be influenced by the working environment, and the use stability of the bearing is improved;

3. this kind of eccentric locking ball bearing of durable low noise, in the installation, when this bearing is connected with external transmission shaft, through seting up the keyway at the top of eccentric orfice to install flat key additional in the keyway inside, realize wholly carrying out eccentric motion, further optimize the stability of bearing in the operation process.

Drawings

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

fig. 2 is a sectional view of the present invention;

FIG. 3 is an enlarged view of part A of the present invention;

fig. 4 is an enlarged view of the part B of the present invention.

In the figure: 1. an outer ring; 2. an inner ring; 3. a snap ring; 4. a sound-absorbing panel; 5. a keyway; 6. a raceway; 7. a chute; 8. a holder; 9. a rolling body; 10. a first mounting groove; 11. a stopper groove; 12. a seal ring; 13. and a second mounting groove.

Detailed Description

The technical solution in the embodiment of the present invention will be made clear below with reference to the drawings in the embodiment of the present invention; the present invention has been described in considerable detail with reference to certain preferred versions thereof. 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. 1-4, the present invention provides a technical solution: the utility model provides a durable low noise eccentric locking ball bearing, including outer loop 1, retaining groove 11 has been seted up to the lateral wall of outer loop 1, retaining ring 3 is installed to the inner chamber of retaining groove 11, the inboard of outer loop 1 is provided with inner ring 2, raceway 6 has been seted up to the inside wall of outer loop 1, inner ring 2's surface seted up with 6 assorted spouts 7 of raceway, swing joint has rolling element 9 between raceway 6 and the spout 7, holder 8 is all installed to the left and right sides of rolling element 9, first mounting groove 10 has all been seted up at the left and right sides edge of the 1 inside wall of outer loop, the left and right sides of the outside face of inner ring 2 all seted up with first mounting groove 10 assorted second mounting groove 13, it has sealing washer 12 to embed between first mounting groove 10 and the second mounting groove 13, the bottom of.

Through adopting above-mentioned technical scheme, effectively prevent this bearing at the operation in-process and take place the bearing phenomenon of skidding, improved the stability of this bearing greatly, through the interconnect of abatvoix 4 with sealing washer 12, realize the effect of this bearing noise reduction in the operation in-process.

Referring to fig. 2, the rolling element 9 is spherical, and the rolling element 9 is made of silicon nitride ceramic.

By adopting the technical scheme, the self hardness of the rolling body 9 and the working efficiency under different environments are ensured.

Referring to fig. 3, the sound-absorbing plate 4 is screwed to the outer surface of the inner ring 2.

Through adopting above-mentioned technical scheme, make things convenient for operating personnel to dismantle and the installation of abatvoix 4 at later stage use through threaded connection.

Referring to FIG. 1, the stop ring 3 is a C-shaped split washer, and the manufacture standard of the stop ring 3 is GB/T305-1998.

By adopting the technical scheme, the manufacturing standard of the stop ring 3 is set, so that the later-stage replacement is simpler and more convenient.

Referring to fig. 2, the upper and lower ends of the rolling element 9 are in two-point contact with the raceway 6 and the sliding groove 7, respectively, and the contact angle is 90 degrees.

By adopting the technical scheme, the internal friction resistance of the rolling body 9 is reduced, and the rolling efficiency of the rolling body 9 is effectively ensured.

Referring to fig. 1, the inner hole of the inner ring 2 is an eccentric hole, and a key slot 5 is formed at the top of the inner side wall of the eccentric hole.

Through adopting above-mentioned technical scheme, only need install the parallel key additional in keyway 5's inside, then can guarantee the stability of bearing body.

The working principle is as follows: when the novel scheme is used, the positions of the outer ring 1 and the inner ring 2 are well fixed, the rolling bodies 9 are arranged between the roller path 6 and the sliding groove 7, the retainer 8 is fixed at the left side and the right side of the corresponding rolling bodies 9, bearing grease is uniformly coated on the surfaces of the rolling bodies 9 and the retainer 8, the friction resistance born by the bearing in the operation process is reduced, the sound-absorbing plate 4 is in threaded connection with the outer side surface of the inner ring 2, the upper end and the lower end of the sealing ring 12 are respectively in close fit with the inner cavities of the first mounting groove 10 and the second mounting groove 13 by using tools, the noise generated in the operation process of the bearing is effectively absorbed, the stop ring 3 is fixedly embedded in the stop groove 11 on the outer surface of the outer ring 1, the stability of the bearing in the operation process is ensured, after the assembly is completed, the bearing is arranged on the corresponding transmission shaft, the flat key is additionally arranged in the, the eccentric motion of the bearing is realized, the stability of the bearing in the operation process is ensured, and the working efficiency of the bearing is greatly improved.

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.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A durable low-noise eccentric detent ball bearing comprising an outer ring (1), characterized in that: the outer side wall of the outer ring (1) is provided with a locking groove (11), the inner cavity of the locking groove (11) is provided with a locking ring (3), the inner side of the outer ring (1) is provided with an inner ring (2), the inner side wall of the outer ring (1) is provided with a roller path (6), the outer surface of the inner ring (2) is provided with a sliding groove (7) matched with the roller path (6), the roller path (6) and the sliding groove (7) are movably connected with a rolling body (9), the left side and the right side of the rolling body (9) are both provided with a retainer (8), the edges of the left side and the right side of the inner side wall of the outer ring (1) are both provided with a first mounting groove (10), the left side and the right side of the outer side surface of the inner ring (2) are both provided with a second mounting groove (13) matched with the first mounting groove (10), and a sealing ring, and the bottom of the sealing ring (12) is provided with a sound absorption plate (4).

2. A durable low-noise eccentric detent ball bearing according to claim 1, wherein: the rolling body (9) is spherical, and the rolling body (9) is made of silicon nitride ceramics.

3. A durable low-noise eccentric detent ball bearing according to claim 1, wherein: the sound-absorbing plate (4) is in threaded connection with the outer surface of the inner ring (2).

4. A durable low-noise eccentric detent ball bearing according to claim 1, wherein: the stop ring (3) is a C-shaped split wire retainer ring, and the manufacturing standard of the stop ring (3) is GB/T305-1998.

5. A durable low-noise eccentric detent ball bearing according to claim 1, wherein: the upper end and the lower end of the rolling body (9) are in two-point contact with the roller path (6) and the sliding groove (7) respectively, and the contact angle is 90 degrees.

6. A durable low-noise eccentric detent ball bearing according to claim 1, wherein: the inner hole of the inner ring (2) is an eccentric hole, and a key groove (5) is formed in the top of the inner side wall of the eccentric hole.