CN213270721U

CN213270721U - Single-ring type double-row self-aligning shock absorption bearing

Info

Publication number: CN213270721U
Application number: CN202022061493.3U
Authority: CN
Inventors: 李东波
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-19
Filing date: 2020-09-19
Publication date: 2021-05-25
Anticipated expiration: 2030-09-19

Abstract

The utility model discloses a single ring type double-row self-aligning shock-absorbing bearing in the technical field of self-aligning shock-absorbing bearing, rolling elements are assembled in a retainer, a sealing ring is arranged at the end face of an inner ring and an outer ring, a dust cover is arranged at the outer side of the sealing ring, a buffer groove is arranged at one side of an arc groove far away from an opening, a guide cylinder is fixedly arranged on one side wall of the buffer groove inner cavity far away from the opening, a supporting spring is fixedly connected with the side wall of the guide cylinder far away from the opening, a guide sliding cylinder is sleeved on the outer wall of the guide cylinder, one end of the guide sliding cylinder close to the rolling elements is fixedly connected with an aligning plate, one side of the aligning plate far away from the guide sliding cylinder is abutted against the outer wall of the rolling elements, the other end of the supporting spring is fixedly connected on one side wall of the aligning plate, the bearing can be promoted to have better impact resistance.

Description

Single-ring type double-row self-aligning shock absorption bearing

Technical Field

The utility model relates to a but from aligning shock-absorbing bearing technical field specifically is a but double-row self aligning shock-absorbing bearing of monocycle type.

Background

The bearing belongs to common parts and universal parts in mechanical equipment, the bearing varieties, specifications and models are different due to different used parts and different bearing loads and other reasons, the double-row bearing is a series of products in bearing doors, however, the currently used double-row bearing has no self-aligning structure and has no self-aligning function, when in application, edge stress is generated at two ends of a rolling body and inner and outer ring raceways, so that early fatigue is generated at two ends of the rolling body and the inner and outer ring raceways, the service life of the bearing is shortened, in addition, when the bearing is used, positive pressure in the diameter direction can be received, external vibration can be transmitted to the rolling body, the compressive stress between the rolling body and the inner and outer rings is increased, and the bearing is easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-row self-aligning shock attenuation bearing of single loop type to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a single-ring double-row self-aligning shock-absorbing bearing comprises an inner ring, wherein an outer ring is assembled on the outer side of the inner ring, two groups of retainers with the same structure are arranged in a cavity between the inner ring and the outer ring and are connected through a connecting rod, rolling bodies are assembled in the retainers, sealing rings are arranged at the end faces of the inner ring and the outer ring, two ends of each sealing ring are respectively nested in inner cavities of the inner ring and the outer ring, a dustproof cover is arranged on the outer side of each sealing ring and is clamped on the outer side walls of the inner ring and the outer ring, arc-shaped grooves are respectively formed in the side walls of the inner ring and the outer ring opposite to each other, a buffer groove is formed in one side, away from an opening, of each buffer groove inner cavity, a guide cylinder is fixedly arranged on the side wall, away from the opening, of, the outer wall of the guide cylinder is sleeved with a guide sliding cylinder, one end, close to the rolling body, of the guide sliding cylinder is fixedly connected with an aligning plate, one side, far away from the guide sliding cylinder, of the aligning plate abuts against the outer wall of the rolling body, and the other end of the supporting spring is fixedly connected to the side wall, far away from the rolling body, of the aligning plate.

Furthermore, the aligning plate is a circular ring concentric with the inner ring, the cross section of the aligning plate is in the shape of a circular arc with the radian identical to that of the rolling element, and a wear-resistant layer is sprayed on the inner side wall of the aligning plate.

Furthermore, the arc-shaped groove is formed along the circumferential direction of the side wall of the opposite side of the inner ring and the outer ring, and the radian of the arc-shaped groove is the same as that of the section of the aligning plate.

Furthermore, the buffer slots on the inner ring and the outer ring are arranged on a horizontal line, and eight groups of open slots with the same structure are uniformly arranged in the buffer slots along the circumferential directions of the inner ring and the outer ring respectively.

Furthermore, the rolling element includes the pressure-bearing spheroid that matches with the aligning plate, the top and the bottom of pressure-bearing spheroid all are fixed to be provided with holder matched with spacing post.

Furthermore, the upper and lower groups of rolling elements are symmetrically arranged by taking the horizontal center line of the inner ring as a symmetry axis, lubricating grease is filled between the inner ring and the outer ring, and the sealing ring is a rubber sealing ring.

Furthermore, a limiting block is fixed at one end, close to the opening, of the outer wall of the guide cylinder, and a stop block matched with the limiting block is fixedly arranged at one end, close to the opening, of the inner wall of the guide sliding cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a structural design is reasonable, the rolling element rotates on the aligning plate, because the radian of aligning plate and rolling element is the same, and all be equipped with the aligning plate in the left and right sides of rolling element, can make the rolling element realize automatic aligning at the roll in-process, and, when the inner circle received compressive stress, the supporting spring in the dashpot on the outer lane of one side of pressurized took place the compression and resists compressive stress, the supporting spring in the interior epaxial dashpot of one side of pressurized takes place tensile simultaneously, can reverse buffering to compressive stress, thereby can make the bearing have the effect of better impact resistance of supporting.

Drawings

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

FIG. 2 is an enlarged schematic view of part A of the present invention;

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

In the figure: 1. an inner ring; 2. an outer ring; 3. a seal ring; 4. a dust cover; 5. a holder; 6. a connecting rod; 7. a rolling body; 71. a pressure-bearing sphere; 72. a limiting column; 8. an aligning plate; 9. an arc-shaped slot; 10. a buffer tank; 11. a guide slide cylinder; 12. a guide cylinder; 13. supporting the spring.

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. 1-3, the present invention provides a technical solution: a single-ring type double-row self-aligning shock-absorbing bearing comprises an inner ring 1, an outer ring 2 is assembled on the outer side of the inner ring 1, two groups of retainers 5 with the same structure are arranged in a cavity between the inner ring 1 and the outer ring 2, the two groups of retainers 5 are connected through a connecting rod 6, rolling bodies 7 are assembled in the retainers 5, sealing rings 3 are arranged at the end faces of the inner ring 1 and the outer ring 2, two ends of each sealing ring 3 are respectively nested in inner cavities of the inner ring 1 and the outer ring 2, a dustproof cover 4 is arranged on the outer side of each sealing ring 3, the dustproof covers 4 are clamped on the outer side walls of the inner ring 1 and the outer ring 2, arc-shaped grooves 9 are respectively arranged on the side walls of the inner ring 1 and the outer ring 2 opposite to each other, a buffer groove 10 is arranged on one side wall of each arc-shaped groove 9 away from an opening, a guide, the outer wall of the guide cylinder 12 is sleeved with a guide sliding cylinder 11, one end of the guide sliding cylinder 11, which is close to the rolling body 7, is fixedly connected with an aligning plate 8, one side, which is far away from the guide sliding cylinder 11, of the aligning plate 8 abuts against the outer wall of the rolling body 7, and the other end of the supporting spring 13 is fixedly connected to the side wall, which is far away from the rolling body 7, of the aligning plate 8.

The aligning plate 8 is a circular ring concentric with the inner ring 1, the section of the aligning plate 8 is arc-shaped, the radian of the arc is the same as that of the rolling element 7, and the inner side wall of the aligning plate 8 is coated with a wear-resistant layer, so that when the rolling element 7 rotates on the aligning plate 8, the aligning plate 8 and the rolling element 7 have the same radian, and the rolling element 7 can be enabled not to be dislocated relative to the aligning plate 8;

the arc-shaped groove 9 is formed along the circumferential direction of the side wall of the opposite side of the inner ring 1 and the outer ring 2, the radian of the arc-shaped groove 9 is the same as that of the section of the aligning plate 8, and the aligning plate 8 can be nested in the arc-shaped groove 9 when the supporting spring 13 is compressed through the arrangement;

the buffer grooves 10 on the inner ring 1 and the buffer grooves 10 on the outer ring 2 are arranged on a horizontal line, and the buffer grooves 10 are uniformly arranged into eight groups of open grooves with the same structure along the circumferential direction of the inner ring 1 and the outer ring 2 respectively, so that the circumferential direction of the bearing can have the function of buffering the pressure stress through the arrangement, and the stress of the bearing in the circumferential direction is more uniform;

the rolling body 7 comprises a pressure-bearing ball 71 matched with the aligning plate 8, the top and the bottom of the pressure-bearing ball 71 are fixedly provided with limit columns 72 matched with the retainer 5, the relative rotation of the inner ring 1 and the outer ring 2 can be ensured through the arrangement, and meanwhile, the rolling body 7 cannot be dislocated with the retainer 5 through the matching of the limit columns 72 and the retainer 5;

the upper and lower groups of rolling bodies 7 are symmetrically arranged by taking the horizontal center line of the inner ring 1 as a symmetry axis, so that when the bearing is used, normal stress acting on the inner ring 1 and the outer ring 2 can be symmetrically arranged, the buffering effect of the bearing on external compressive stress is favorably improved, meanwhile, the stability of the bearing can be improved, lubricating grease is filled between the inner ring 1 and the outer ring 2, and the sealing ring 3 is a rubber sealing ring, so that the sealing ring 3 can be utilized to play a role in blocking the lubricating grease between the inner ring 1 and the outer ring 2, and the lubricating grease is ensured not to be leaked;

the limiting block is fixed to one end, close to the opening, of the outer wall of the guide cylinder 12, the stop block matched with the limiting block is fixedly arranged at one end, close to the opening, of the inner wall of the guide sliding cylinder 11, and the stop block and the limiting block can be matched to enable the guide sliding cylinder 11 and the guide cylinder 12 not to be separated when the guide sliding cylinder 11 slides along the outer wall of the guide cylinder 12, so that safety of the device is improved.

Example (b): when the device is used, the inner ring 1 rotates relative to the outer ring 2, the rolling body 7 rotates on the aligning plate 8, the radian of the aligning plate 8 is the same as that of the rolling body 7, the rolling body 7 can be ensured not to be dislocated relative to the aligning plate 8, meanwhile, the retainer 5 can limit the rolling body 7, so that the rolling body 7 can realize automatic aligning in the rolling process, the sealing ring 3 can block lubricating grease between the inner ring 1 and the outer ring 2, so that the lubricating grease can not be leaked, meanwhile, the dust cover 4 can block external dust and protect a bearing, in addition, when the inner ring 1 is subjected to compressive stress, the supporting spring 13 in the buffer groove 10 on the outer ring 2 on the pressed side is compressed to resist the compressive stress, and meanwhile, the supporting spring 13 in the buffer groove 10 on the inner ring 1 on the pressed side is stretched, so that the reverse buffer of the compressive stress can be realized, can cushion compressive stress and impact force on the inner circle 1, when supporting spring 13 takes place compression deformation, the smooth section of thick bamboo 11 of direction slides along the outer wall of guide cylinder 12 simultaneously, can improve the linearity that provides supporting spring 13 compression, can not take place the skew, has improved the sliding stability between the smooth section of thick bamboo 11 of direction and the guide cylinder 12 to can impel the bearing to have the effect of better resistance to impact force.

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. The utility model provides a but double-row self-aligning shock attenuation bearing of monocycle type, includes inner circle (1), its characterized in that: the outer side of the inner ring (1) is provided with an outer ring (2), two groups of retainers (5) with the same structure are arranged in a cavity between the inner ring (1) and the outer ring (2), the two groups of retainers (5) are connected through a connecting rod (6), rolling bodies (7) are arranged in the retainers (5), sealing rings (3) are arranged at the end faces of the inner ring (1) and the outer ring (2), the two ends of each sealing ring (3) are respectively embedded in the inner cavities of the inner ring (1) and the outer ring (2), a dust cover (4) is arranged on the outer side of each sealing ring (3), the dust cover (4) is connected to the outer side walls of the inner ring (1) and the outer ring (2) in a clamping manner, arc-shaped grooves (9) are respectively formed in the side walls of the inner ring (1) and the outer ring (2) on the opposite sides, buffer grooves (10) are, the buffer slot (10) inner chamber is kept away from and is fixedly provided with guide cylinder (12) on the open-ended one side lateral wall, open-ended one side lateral wall fixedly connected with supporting spring (13) is kept away from in guide cylinder (12), guide slide cylinder (11) have been cup jointed on guide cylinder (12) outer wall, one end fixedly connected with aligning plate (8) that guide slide cylinder (11) are close to rolling element (7), one side that guide slide cylinder (11) were kept away from in aligning plate (8) is supported and is leaned on the outer wall of rolling element (7), the other end fixed connection of supporting spring (13) is on aligning plate (8) keep away from one side lateral wall of rolling element (7).

2. A single ring type double row self aligning shock absorbing bearing as claimed in claim 1, wherein: the aligning plate (8) is a circular ring concentric with the inner ring (1), the cross section of the aligning plate (8) is in the shape of a circular arc with the radian identical to that of the rolling body (7), and a wear-resistant layer is sprayed on the inner side wall of the aligning plate (8).

3. A double row self aligning shock absorbing bearing of the single ring type according to claim 1 or 2, characterized in that: the arc-shaped groove (9) is formed along the circumferential direction of the side wall of one side, opposite to the inner ring (1) and the outer ring (2), of the outer ring, and the radian of the arc-shaped groove (9) is identical to that of the section of the adjusting plate (8).

4. A single ring type double row self aligning shock absorbing bearing as claimed in claim 1, wherein: buffer slot (10) on inner circle (1) with buffer slot (10) on outer lane (2) set up on a water flat line, just buffer slot (10) evenly set up to eight open slots that the structure is the same along the circumferencial direction of inner circle (1) and outer lane (2) respectively.

5. A single ring type double row self aligning shock absorbing bearing as claimed in claim 1, wherein: the rolling body (7) comprises a pressure-bearing ball body (71) matched with the aligning plate (8), and limiting columns (72) matched with the retainer (5) are fixedly arranged at the top and the bottom of the pressure-bearing ball body (71).

6. A single ring type double row self aligning shock absorbing bearing as claimed in claim 1, wherein: the upper and lower two sets of rolling elements (7) are symmetrically arranged by taking the horizontal center line of the inner ring (1) as a symmetry axis, lubricating grease is filled between the inner ring (1) and the outer ring (2), and the sealing ring (3) is a rubber sealing ring.

7. A single ring type double row self aligning shock absorbing bearing as claimed in claim 1, wherein: a limiting block is fixed at one end, close to the opening, of the outer wall of the guide cylinder (12), and a stop block matched with the limiting block is fixedly arranged at one end, close to the opening, of the inner wall of the guide sliding cylinder (11).