CN215567258U

CN215567258U - Steel-elastic-base PTFE self-lubricating bearing

Info

Publication number: CN215567258U
Application number: CN202023113076.5U
Authority: CN
Inventors: 沈炯
Original assignee: Zhejiang Shuangnuo Bearing Technology Co ltd
Current assignee: Zhejiang Shuangnuo Bearing Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2022-01-18
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses an elastic steel base PTFE self-lubricating bearing, which relates to the technical field of bearings and comprises an outer ring, wherein an inner ring is arranged on the inner side of the outer ring, a plurality of balls distributed in an annular array are arranged between the outer ring and the inner ring, a first annular groove is formed in the inner side wall of the outer ring, and a first PTFE coating is coated on the groove wall of the first annular groove. According to the bearing, the first annular groove and the second annular groove are formed in the outer ring and the inner ring, the first PTFE coating and the second PTFE coating are coated in the first annular groove and the second annular groove, the balls are located in the first annular groove and the second annular groove and are respectively contacted with the surfaces of the first PTFE coating and the second PTFE coating, when the bearing works, the inner ring rotates to drive the balls to rotate on the surfaces of the first PTFE coating and the second PTFE coating, and due to the extremely low friction coefficient of the PTFE coatings, the self-lubricating effect of the balls is achieved, and the service life of the bearing is prolonged.

Description

Steel-elastic-base PTFE self-lubricating bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to an elastic steel base PTFE self-lubricating bearing.

Background

The bearing is used for determining the relative motion position of a rotating shaft and other parts and plays a role in supporting or guiding, is a lightweight part in modern mechanical equipment, has the main function of supporting a mechanical rotating body and is used for reducing the mechanical load friction coefficient of the equipment in the transmission process, and the bearing is usually lubricated by using a lubricant in the working process so as to reduce the self-loss of the bearing, but the condition that the bearing is abraded or the lubricant is easy to leak when the lubrication is not timely occurs frequently occurs, so that the utility model of the steel elastic base PTFE self-lubricating bearing is necessary for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an elastic steel base PTFE self-lubricating bearing to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a play steel base PTFE self-lubricating bearing, includes the outer loop, the inboard of outer loop is provided with the inner ring, be provided with a plurality of balls that are the annular array and distribute between outer loop and the inner ring, first ring channel has been seted up to the inside wall of outer loop, the coating has first PTFE coating on the cell wall of first ring channel, the second ring channel has been seted up on the lateral wall surface of inner ring, the coating has second PTFE coating on the cell wall of second ring channel, the both sides of ball are located first ring channel and second ring channel respectively, the both sides surface of ball is laminated with first PTFE coating and second PTFE coating respectively, the outside of ball is provided with the ball holder, the outside of outer loop is provided with the lantern ring, the inner wall fixedly connected with of lantern ring is a plurality of first rubber arch that are the annular array and distribute, the outside surface fixedly connected with a plurality of second rubber arch that are the annular array and distribute, the first rubber bulge and the second rubber bulge are attached to the surface of one end, close to each other.

Preferably, a plurality of fixed blocks are fixedly connected to the outer side wall of the outer ring, the fixed blocks are distributed in an annular array, and the fixed blocks are located between two adjacent first rubber bulges.

Preferably, a plurality of movable rods are fixedly connected to the inner side wall of the lantern ring, and the movable rods are distributed in an annular array.

Preferably, a movable rod groove matched with the movable rod is formed in the surface, far away from the outer ring, of one side of the fixing block, a limiting groove is formed in the fixing block, and the limiting groove is communicated with the movable rod groove.

Preferably, one end of the movable rod, which is far away from the lantern ring, penetrates through the movable rod groove and extends into the limiting groove, and a limiting plate is arranged in the limiting groove.

Preferably, the one end and the limiting plate fixed connection of lantern ring are kept away from to the movable rod, the equal fixedly connected with damping layer of both sides cell wall of spacing groove, the both ends of limiting plate laminate with the surface on two damping layers respectively.

Preferably, the two ends of one side of the limiting plate, which is far away from the movable rod, are fixedly connected with return springs, and one ends, which are far away from the limiting plate, of the return springs are fixedly connected with the groove bottoms of the limiting grooves.

The utility model has the technical effects and advantages that:

1. According to the bearing, the first annular groove and the second annular groove are formed in the outer ring and the inner ring, the first PTFE coating and the second PTFE coating are coated in the first annular groove and the second annular groove, the balls are located in the first annular groove and the second annular groove and are respectively contacted with the surfaces of the first PTFE coating and the second PTFE coating, when the bearing works, the inner ring rotates to drive the balls to rotate on the surfaces of the first PTFE coating and the second PTFE coating, and due to the extremely low friction coefficient of the PTFE coatings, the self-lubricating effect of the balls is achieved, and the service life of the bearing is prolonged;

2. according to the utility model, the ball retainer is arranged on the outer side of the ball to prevent the position of the ball from deviating, the first rubber bulge and the second rubber bulge can be extruded and deformed by vibration generated by the bearing during working so as to achieve a certain buffering effect, and the limiting plate performs damping motion in the limiting groove when the bearing vibrates through the matching of the movable rod and the limiting plate, so that the shock absorption of the bearing is realized, and the abrasion generated by the long-time working of the bearing is reduced.

Drawings

Fig. 1 is a schematic top-down view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

Fig. 3 is a schematic side sectional view of the overall structure of the present invention.

In the figure: 1. an outer ring; 2. an inner ring; 3. a ball bearing; 4. a first annular groove; 5. a first PTFE coating; 6. a second annular groove; 7. a second PTFE coating; 8. a ball retainer; 9. a collar; 10. a first rubber projection; 11. a second rubber projection; 12. a fixed block; 13. a movable rod; 14. a movable rod groove; 15. A limiting groove; 16. a limiting plate; 17. a damping layer; 18. a return spring.

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.

The utility model provides an elastic steel base PTFE self-lubricating bearing as shown in figures 1-3, which comprises an outer ring 1, an inner ring 2 arranged on the inner side of the outer ring 1, a plurality of balls 3 distributed in an annular array arranged between the outer ring 1 and the inner ring 2, a first annular groove 4 arranged on the inner side wall of the outer ring 1, a first PTFE coating 5 coated on the groove wall of the first annular groove 4, a second annular groove 6 arranged on the outer side wall of the inner ring 2, a second PTFE coating 7 coated on the groove wall of the second annular groove 6, two sides of the balls 3 respectively positioned in the first annular groove 4 and the second annular groove 6, two side surfaces of the balls 3 respectively attached with the first PTFE coating 5 and the second PTFE coating 7, the inner ring 2 rotating along with an external driving device on the inner side of the outer ring 1, so that the balls 3 rotate between the outer ring 1 and the inner ring 2, and through the first annular groove 4 and the second annular groove 6 arranged on the outer ring 1 and the inner ring 2, the first annular groove 4 and the second annular groove 6 are coated with a first PTFE coating 5 and a second PTFE coating 7, the ball 3 is positioned in the first annular groove 4 and the second annular groove 6 and is respectively contacted with the surfaces of the first PTFE coating 5 and the second PTFE coating 7, when the ball 3 rotates on the surfaces of the first PTFE coating 5 and the second PTFE coating 7, because of the extremely low friction coefficient of the PTFE coating, the self-lubricating effect on the ball 3 is realized, the abrasion of the bearing is reduced, the service life of the bearing is prolonged, the outer side of the ball 3 is provided with a ball retainer 8 for preventing the position of the ball 3 from shifting, the outer side of the outer ring 1 is provided with a lantern ring 9, the inner wall of the lantern ring 9 is fixedly connected with a plurality of first rubber bulges 10 distributed in an annular array, the outer side surface of the outer ring 1 is fixedly connected with a plurality of second rubber bulges 11 distributed in an annular array, one end surfaces of the first rubber bulges 10 and the second rubber bulges 11, which are close to each other, are attached to each other, when the bearing vibrates in work, the first rubber bulge 10 and the second rubber bulge 11 can be extruded and deformed mutually, and part of force generated by vibration on part of the bearing is offset, so that a certain buffering effect is achieved.

As shown in fig. 2, a plurality of fixed blocks 12 are fixedly connected to the outer side wall of the outer ring 1, the fixed blocks 12 are distributed in an annular array, the fixed blocks 12 are located between two adjacent first rubber protrusions 10, a plurality of movable rods 13 are fixedly connected to the inner side wall of the sleeve ring 9, the plurality of movable rods 13 are distributed in an annular array, the movable rods 13 drive the limiting plate 16 to move, a movable rod groove 14 matched with the movable rods 13 is formed in one side surface of the fixed blocks 12 away from the outer ring 1, a limiting groove 15 is formed in the fixed blocks 12, the limiting groove 15 is communicated with the movable rod groove 14, one end of the movable rod 13 away from the sleeve ring 9 penetrates through the movable rod groove 14 and extends into the limiting groove 15, a limiting plate 16 is arranged in the limiting groove 15, one end of the movable rod 13 away from the sleeve ring 9 is fixedly connected with the limiting plate 16, and damping layers 17 are fixedly connected to both side groove walls of the limiting groove 15, the both ends of limiting plate 16 respectively with the surface laminating on two damping layers 17, limiting plate 16 removes to make can with the contact of damping layer 17, and then make limiting plate 16 be damping motion, the equal fixedly connected with reset spring 18 in one side both ends that movable rod 13 was kept away from to limiting plate 16, reset spring 18 keeps away from the one end of limiting plate 16 and the tank bottom fixed connection of spacing groove 15, make the limiting plate 16 after removing reset through reset spring 18, and then make limiting plate 16 be damping motion on two damping layers 17, thereby play certain shock attenuation effect to the vibrations that the bearing produced.

The working principle of the utility model is as follows:

when the device is used, the inner ring 2 rotates along with driving of an external driving device on the inner side of the outer ring 1, so that the balls 3 rotate between the outer ring 1 and the inner ring 2, the first annular groove 4 and the second annular groove 6 are formed in the outer ring 1 and the inner ring 2, the first PTFE coating 5 and the second PTFE coating 7 are coated in the first annular groove 4 and the second annular groove 6, the balls 3 are positioned in the first annular groove 4 and the second annular groove 6 and are respectively contacted with the surfaces of the first PTFE coating 5 and the second PTFE coating 7, when the balls 3 rotate on the surfaces of the first PTFE coating 5 and the second PTFE coating 7, due to the extremely low friction coefficient of the PTFE coating, the self-lubricating effect on the balls 3 is realized, the abrasion of a bearing is reduced, the ball retainer 8 is arranged on the outer side of the balls 3, the position of the balls 3 is prevented from shifting, when the bearing vibrates in work, the first rubber bulge 10 and the second rubber bulge 11 can be extruded and deformed mutually, part of force generated by vibration of a part of bearings is offset, a certain buffering effect is achieved, and the limiting plate 16 performs damping motion in the limiting groove 15 when the bearings vibrate through the cooperation of the movable rod 13 and the limiting plate 16, so that the bearings are damped, abrasion of the bearings during long-time working is reduced, and the service life of the bearings is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A steel-elastic-based PTFE self-lubricating bearing comprises an outer ring (1), and is characterized in that: the inner side of the outer ring (1) is provided with an inner ring (2), a plurality of balls (3) distributed in an annular array are arranged between the outer ring (1) and the inner ring (2), a first annular groove (4) is formed in the inner side wall of the outer ring (1), a first PTFE coating (5) is coated on the groove wall of the first annular groove (4), a second annular groove (6) is formed in the surface of the outer side wall of the inner ring (2), a second PTFE coating (7) is coated on the groove wall of the second annular groove (6), two sides of each ball (3) are respectively positioned inside the first annular groove (4) and the second annular groove (6), two side surfaces of each ball (3) are respectively laminated with the first PTFE coating (5) and the second PTFE coating (7), a ball retainer (8) is arranged on the outer side of each ball (3), and a lantern ring (9) is arranged on the outer side of the outer ring (1), the inner wall fixedly connected with of the lantern ring (9) is a plurality of first rubber arch (10) that are the annular array and distribute, the outside fixed surface of outer ring (1) is connected with a plurality of second rubber arch (11) that are the annular array and distribute, the laminating of the one end surface that is close to each other of first rubber arch (10) and second rubber arch (11).

2. The steel-based PTFE self-lubricating bearing of claim 1, wherein: the outer ring is characterized in that a plurality of fixing blocks (12) are fixedly connected to the outer side wall of the outer ring (1) in a plurality of annular array distribution is formed in the fixing blocks (12), and the fixing blocks (12) are located between two adjacent first rubber bulges (10).

3. The steel-based PTFE self-lubricating bearing of claim 2, wherein: a plurality of movable rods (13) are fixedly connected to the inner side wall of the lantern ring (9), and the movable rods (13) are distributed in an annular array mode.

4. The steel-based PTFE self-lubricating bearing of claim 3, wherein: the movable rod groove (14) matched with the movable rod (13) is formed in the surface of one side, away from the outer ring (1), of the fixed block (12), the limiting groove (15) is formed in the fixed block (12), and the limiting groove (15) is communicated with the movable rod groove (14).

5. The steel-based PTFE self-lubricating bearing of claim 4, wherein: one end, far away from the lantern ring (9), of the movable rod (13) penetrates through the movable rod groove (14) and extends to the inside of the limiting groove (15), and a limiting plate (16) is arranged inside the limiting groove (15).

6. The steel-based PTFE self-lubricating bearing of claim 5, wherein: one end of the movable rod (13) far away from the lantern ring (9) is fixedly connected with the limiting plate (16), the two side groove walls of the limiting groove (15) are fixedly connected with damping layers (17), and two ends of the limiting plate (16) are respectively attached to the surfaces of the two damping layers (17).

7. The steel-based PTFE self-lubricating bearing of claim 6, wherein: the limiting plate (16) is far away from both ends of one side of the movable rod (13) and is fixedly connected with a return spring (18), and one end of the return spring (18) far away from the limiting plate (16) is fixedly connected with the bottom of the limiting groove (15).