CN216589550U

CN216589550U - Joint bearing

Info

Publication number: CN216589550U
Application number: CN202123450377.1U
Authority: CN
Inventors: 陈骅
Original assignee: Wuxi Unison Technology Co ltd
Current assignee: Wuxi Unison Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-24
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a joint bearing, which relates to the technical field of bearings and comprises an inner ring, a copper ring, an outer ring and a connecting rod which is integrally formed with the outer ring; the copper ring is tightly matched on the inner wall of the outer ring; the inner ring is in running fit with the copper ring, and a polytetrafluoroethylene coating is arranged on the inner side wall of the copper ring. The utility model discloses can reduce the rate of wear of inner circle outer wall.

Description

Joint bearing

Technical Field

The utility model belongs to the technical field of the technique of bearing and specifically relates to a joint bearing is related to.

Background

At present, a joint bearing comprises an outer ring, an inner ring, a copper ring and a connecting rod integrated with the outer ring; the outer ring is sleeved outside the copper ring; the copper ring is sleeved outside the inner ring. When the copper ring is in work, the inner ring does circular rotation motion, and can swing relative to the axis of the copper ring while rotating.

However, when the inner ring rotates, friction occurs between the outer wall of the inner ring and the inner wall of the copper ring, which may increase the wear rate of the outer wall of the inner ring, and may affect the service life of the inner ring.

SUMMERY OF THE UTILITY MODEL

The application provides a joint bearing, can reduce the wearing and tearing speed of inner circle outer wall.

The application provides a joint bearing adopts following technical scheme:

a joint bearing comprises an inner ring, a copper ring, an outer ring and a connecting rod integrally formed with the outer ring; the copper ring is tightly matched on the inner wall of the outer ring; the inner ring is in running fit with the copper ring, and a polytetrafluoroethylene coating is arranged on the inner side wall of the copper ring.

By adopting the technical scheme, the polytetrafluoroethylene coating has the characteristic of high temperature resistance, and the friction coefficient of the polytetrafluoroethylene coating is extremely low, so that the polytetrafluoroethylene coating has a better lubricating effect; therefore, the friction between the outer wall of the inner ring and the inner wall of the copper ring can be reduced through the arranged polytetrafluoroethylene coating, and the abrasion speed of the outer wall of the inner ring can be reduced.

Preferably, the inner side wall of the copper ring is provided with a plurality of grooves.

Through adopting above-mentioned technical scheme, through the recess that sets up, can improve the adhesive force between the inside wall of polytetrafluoroethylene coating and copper ring to can improve the stability of polytetrafluoroethylene coating.

Preferably, the connecting rod comprises a fixed pipe fixedly connected with the outer ring and a movable pipe connected with the inner cavity of the fixed pipe in a sliding manner; and the fixed pipe is provided with a fixing mechanism for fixing the movable pipe.

Through adopting above-mentioned technical scheme, when the length of connecting rod needs to be adjusted, make the connecting rod be in suitable length through removing the movable tube, then fix the movable tube through fixed establishment to alright adjust the length of connecting rod, thus be convenient for install joint bearing.

Preferably, the fixing mechanism comprises an insertion block, a through hole for the insertion block to slide is formed in the side wall of the fixing pipe, and a plurality of insertion grooves for the insertion block to be inserted are sequentially formed in the outer side wall of the movable pipe along the axial direction of the movable pipe; and the outer side wall of the fixed pipe is provided with a limiting assembly for limiting one end of the insertion block, which is far away from the slot.

By adopting the technical scheme, when the movable pipe needs to be fixed, the insertion block is inserted into the slot by moving the insertion block, and then one end of the insertion block, which is far away from the slot, is limited by the limiting component, so that the movable pipe can be limited; through the fixed establishment who sets up, be convenient for carry on spacingly to the movable tube.

Preferably, the limiting assembly comprises a fixed block fixedly connected to the outer side wall of the fixed pipe and a pull rod connected to the fixed block in a sliding manner; one end of the pull rod is fixedly connected with a limiting block, and one end of the inserting block, which is far away from the inserting slot, is provided with a limiting groove for the limiting block to be inserted; the pull rod is sleeved with a spring, and two ends of the spring are fixedly connected to the opposite inner sides of the limiting block and the fixing block respectively.

By adopting the technical scheme, when the insertion block is required to be inserted into the slot, the limiting block is moved to the direction away from the insertion block by moving the pull rod, then the insertion block is moved to be inserted into the slot, and the limiting block is moved to press the spring, so that the spring is in a compressed state; after the insertion block is inserted into the slot, the pull rod is loosened, and the limiting block can be inserted into the limiting groove under the action of the spring, so that the insertion block is limited conveniently.

Preferably, one side rigid coupling of stopper has the dovetail block, the dovetail that is used for supplying the dovetail block to slide is seted up to the lateral wall of fixed pipe.

By adopting the technical scheme, the limiting blocks are convenient to guide through the arranged dovetail blocks and the dovetail grooves.

Preferably, a fixing piece used for fixing the limiting block is installed at one end, far away from the slot, of the insertion block.

Through adopting above-mentioned technical scheme, through the mounting that sets up, can improve the stability of stopper, and then can improve the stability of inserted block.

Preferably, the fixing piece comprises a mounting block fixedly connected to one end of the insertion block, which is far away from the slot, and a fastening bolt in threaded connection with the mounting block; the fastening bolt can abut against the outer side wall of the limiting block.

By adopting the technical scheme, when the limiting block needs to be fixed, the fastening bolt abuts against the limiting block by rotating the fastening bolt, so that the limiting block can be fixed.

In summary, the present application has the following beneficial effects:

1. the polytetrafluoroethylene coating has the characteristic of high temperature resistance, and the friction coefficient of the polytetrafluoroethylene coating is extremely low, so that the polytetrafluoroethylene coating has a better lubricating effect; therefore, the friction between the outer wall of the inner ring and the inner wall of the copper ring can be reduced through the arranged polytetrafluoroethylene coating, so that the abrasion speed of the outer wall of the inner ring can be reduced;

2. the adhesive force between the polytetrafluoroethylene coating and the inner side wall of the copper ring can be improved through the arranged groove, so that the stability of the polytetrafluoroethylene coating can be improved;

3. when the length of connecting rod needs to be adjusted, the connecting rod is made to be in a proper length by moving the movable pipe, and then the movable pipe is fixed through the fixing mechanism, so that the length of the connecting rod can be adjusted, and the joint bearing is convenient to install.

Drawings

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

FIG. 2 is a partial cross-sectional view of a raised groove in an embodiment;

FIG. 3 is a schematic view showing the structure of the fixing mechanism in the embodiment;

FIG. 4 is a schematic view showing the structure of the seal ring in the embodiment.

Description of reference numerals: 1. an inner ring; 2. a copper ring; 21. a tetrafluoroethylene coating; 22. a groove; 3. an outer ring; 4. a connecting rod; 41. a fixed tube; 42. a movable tube; 43. a seal ring; 5. a fixing mechanism; 51. inserting a block; 52. a through hole; 53. a slot; 6. a limiting component; 61. a fixed block; 62. a pull rod; 63. a limiting block; 64. a dovetail block; 65. a dovetail groove; 66. a limiting groove; 67. a spring; 7. a fixing member; 71. mounting blocks; 72. and fastening the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that, as used in the following description, the terms "front," "rear," "left," "right," "upper," "lower," "bottom" and "top" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The utility model discloses a joint bearing, as shown in figures 1 and 2, comprising an inner ring 1, a copper ring 2, an outer ring 3 and a connecting rod 4 which is integrated with the outer ring 3; the copper ring 2 is tightly matched on the inner wall of the outer ring 3; inner circle 1 and copper ring 2 normal running fit, the inside wall spraying of copper ring 2 has polytetrafluoroethylene coating 21, and the inside wall of copper ring 2 is provided with a plurality of recesses 22, and the recess 22 of setting can improve the adhesive force between polytetrafluoroethylene coating 21 and the inside wall of copper ring 2. The polytetrafluoroethylene coating 21 has the characteristic of high temperature resistance, and has an extremely low friction coefficient, so that the polytetrafluoroethylene coating has a better lubricating effect; therefore, the friction between the outer wall of the inner ring 1 and the inner wall of the copper ring 2 can be reduced by the polytetrafluoroethylene coating 21, and the wear rate of the outer wall of the inner ring 1 can be reduced.

As shown in fig. 1 and 3, the connecting rod 4 includes a fixed tube 41 fixedly connected with the outer ring 3 and a movable tube 42 slidably connected to an inner cavity of the fixed tube 41 along an axial direction of the fixed tube 41; referring to fig. 4, a packing 43 is provided between an inner wall of the fixed pipe 41 and an outer wall of the movable pipe 42, so that the possibility of dust entering the fixed pipe 41 from a joint between the fixed pipe 41 and the movable pipe 42 can be reduced, and the fixed pipe 41 is provided with a fixing mechanism 5 for fixing the movable pipe 42. When the length of the connecting rod 4 needs to be adjusted, the connecting rod 4 is in a proper length by moving the movable tube 42, and then the movable tube 42 is fixed by the fixing mechanism 5, so that the length of the connecting rod 4 can be adjusted, and the joint bearing is convenient to install.

As shown in fig. 1 and 3, the fixing mechanism 5 includes an insertion block 51, a through hole 52 for the insertion block 51 to slide along the radial direction of the fixing pipe 41 is formed in the side wall of the fixing pipe 41, one end of the through hole 52 is communicated with the inner cavity of the fixing pipe 41, the other end is communicated with the outside of the fixing pipe 41, and a plurality of slots 53 for the insertion block 51 to be inserted are sequentially formed in the outer side wall of the movable pipe 42 along the axial direction thereof; the outer side wall of the fixed pipe 41 is provided with a limiting component 6 for limiting one end of the insert block 51 far away from the slot 53. When the movable tube 42 needs to be fixed, the insertion block 51 is inserted into the slot 53 by moving the insertion block 51, and then one end of the insertion block 51, which is far away from the slot 53, is limited by the limiting component 6, so that the movable tube 42 can be limited; the movable tube 42 is convenient to limit by the arranged fixing mechanism 5.

As shown in fig. 1 and 3, the limiting component 6 includes a fixing block 61 fixed on the outer side wall of the fixing tube 41 and a pull rod 62 connected to the fixing block 61 in a sliding manner along the axial direction of the fixing tube 41; one end of the pull rod 62 is fixedly connected with a limiting block 63, one side of the limiting block 63 is fixedly connected with a dovetail block 64, and the outer side wall of the fixed pipe 41 is provided with a dovetail groove 65 for the dovetail block 64 to slide; a limiting groove 66 for the limiting block 63 to be inserted is formed in one end, away from the slot 53, of the insertion block 51; the pull rod 62 is sleeved with a spring 67, the spring 67 is arranged along the axial direction of the fixed pipe 41, and two ends of the spring 67 are respectively and fixedly connected to the inner sides of the limiting block 63 and the fixed block 61. When the insertion block 51 is required to be inserted into the slot 53, the pull rod 62 is moved to move the limiting block 63 in a direction away from the insertion block 51, then the insertion block 51 is moved to be inserted into the slot 53, and the limiting block 63 is moved to press the spring 67, so that the spring 67 is in a compressed state; after the insertion block 51 is inserted into the insertion slot 53, the pull rod 62 is loosened, and the limiting block 63 can be inserted into the limiting groove 66 under the action of the spring 67, so that the insertion block 51 is limited.

As shown in fig. 1 and fig. 3, a fixing member 7 for fixing the limiting block 63 is installed at one end of the insertion block 51 away from the slot 53, and the fixing member 7 includes an installation block 71 fixedly connected to one end of the insertion block 51 away from the slot 53 and a fastening bolt 72 threadedly connected to the installation block 71; the fastening bolt 72 can abut against the outer side wall of the stopper 63. When the stopper 63 needs to be fixed, the fastening bolt 72 is rotated to abut against the sidewall 63 of the stopper, so that the stopper 63 can be fixed.

The working principle is as follows: the polytetrafluoroethylene coating 21 has the characteristic of high temperature resistance, and has an extremely low friction coefficient, so that the polytetrafluoroethylene coating has a better lubricating effect; therefore, the friction between the outer wall of the inner ring 1 and the inner wall of the copper ring 2 can be reduced by the polytetrafluoroethylene coating 21, and the wear rate of the outer wall of the inner ring 1 can be reduced.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A joint bearing comprises an inner ring (1), a copper ring (2), an outer ring (3) and a connecting rod (4) which is integrally formed with the outer ring (3); the copper ring (2) is tightly matched on the inner wall of the outer ring (3); inner circle (1) and copper ring (2) normal running fit, its characterized in that: and a polytetrafluoroethylene coating (21) is arranged on the inner side wall of the copper ring (2).

2. A spherical plain bearing according to claim 1, wherein: the inner side wall of the copper ring (2) is provided with a plurality of grooves (22).

3. A spherical plain bearing according to claim 1, wherein: the connecting rod (4) comprises a fixed pipe (41) fixedly connected with the outer ring (3) and a movable pipe (42) connected to the inner cavity of the fixed pipe (41) in a sliding manner; the fixed pipe (41) is provided with a fixed mechanism (5) for fixing the movable pipe (42).

4. A spherical plain bearing according to claim 3, wherein: the fixing mechanism (5) comprises an insertion block (51), a through hole (52) for the insertion block (51) to slide is formed in the side wall of the fixing pipe (41), and a plurality of insertion grooves (53) for the insertion block (51) to be inserted are sequentially formed in the outer side wall of the movable pipe (42) along the axial direction of the movable pipe; and a limiting component (6) used for limiting one end, far away from the slot (53), of the insertion block (51) is installed on the outer side wall of the fixed pipe (41).

5. A spherical plain bearing according to claim 4, wherein: the limiting assembly (6) comprises a fixed block (61) fixedly connected to the outer side wall of the fixed pipe (41) and a pull rod (62) connected to the fixed block (61) in a sliding mode; a limiting block (63) is fixedly connected to one end of the pull rod (62), and a limiting groove (66) for the limiting block (63) to be inserted is formed in one end, away from the slot (53), of the insertion block (51); the pull rod (62) is sleeved with a spring (67), and two ends of the spring (67) are fixedly connected to the inner sides, relative to the limiting block (63) and the fixing block (61), of the limiting block respectively.

6. A spherical plain bearing according to claim 5, wherein: one side rigid coupling of stopper (63) has dovetail block (64), dovetail groove (65) that are used for supplying dovetail block (64) to slide are seted up to the lateral wall of fixed pipe (41).

7. A spherical plain bearing according to claim 5, wherein: and a fixing piece (7) used for fixing the limiting block (63) is arranged at one end, far away from the slot (53), of the insertion block (51).

8. A spherical plain bearing according to claim 7, wherein: the fixing piece (7) comprises a mounting block (71) fixedly connected to one end, far away from the slot (53), of the inserting block (51) and a fastening bolt (72) in threaded connection with the mounting block (71); the fastening bolt (72) can abut against the outer side wall of the limiting block (63).