Self-lubricating thin-wall bearing

Abstract

The invention relates to the technical field of thin-wall bearings, in particular to a self-lubricating thin-wall bearing which comprises a bearing sleeve and a shaft seat outer ring, a bearing inner ring is arranged in the shaft seat outer ring, the top end of the bearing sleeve is sleeved with an upper sleeving ring frame, and the bottom end of the bearing sleeve is sleeved with a lower sleeving ring frame. A retainer is arranged between the shaft seat outer ring and the bearing inner ring, and a mounting inner ring is arranged on the inner wall of the bearing inner ring. Through the arrangement of the bearing sleeve, the shaft seat outer ring, the bearing inner ring, the upper sleeving ring frame, the lower sleeving ring frame, the retainer, the mounting inner ring and the shunting side frame, lubricating oil in the thin-wall bearing can more efficiently and orderly flow through equipment; a worker firstly sleeves and installs the thin-wall bearing integrally formed by the shaft seat outer ring, the bearing inner ring and the retainer on the inner wall of the bearing sleeve, and then sleeves the upper sleeving ring frame and the lower sleeving ring frame at the upper end and the lower end of the bearing sleeve respectively.

Description

Technical Field

[0001] The invention relates to the technical field of thin-wall bearings, in particular to a self-lubricating thin-wall bearing. Background Art

[0002] Thin-walled bearings are a type of bearing that achieves an extremely thin bearing section and a miniaturized and lightweight design. They are generally divided into different sealing forms, such as rubber seal-RS, iron seal-ZZ, etc. In order to obtain low friction torque, high rigidity, and good rotation accuracy of the bearing, a steel ball with a small outer diameter is used. The use of a hollow shaft ensures lightweight and wiring space. Thin-walled bearings achieve an extremely thin bearing section, and also achieve miniaturization and lightweight of the product. The diversity of products expands its scope of use. The sealing structure of thin-walled bearings is diverse, so the sealing effect is also different. There is a gap between the sealing ring and the rotating shaft, which is called a non-contact seal. The smaller the gap, the better the sealing effect, but the smaller the allowable shaft speed, and vice versa. There is no gap between the sealing ring and the rotating shaft, which is called a contact seal. The larger the contact area of ​​the sealing ring contact lip, the better the sealing effect, but the smaller the allowable shaft speed, and vice versa. The main research content of sealing technology is to research and develop corresponding sealing devices applied to different working conditions, as well as the compatibility of the sealing ring material with the corresponding grease.

[0003] For example, the patent document with the announcement number CN 219492871 U discloses a thin-walled inlaid self-lubricating bearing, which relates to the field of bearing technology, and aims to solve the problem that the lubricant is added into the bearing manually, and the adding process is cumbersome and inefficient. The bearing comprises an external mechanism and a reciprocating structure; the external mechanism is movably connected with the control structure, and the control structure is fixedly connected in the internal mechanism, and the two sides of the internal mechanism are movably connected with the blocking structure respectively; the reciprocating structure is movably connected with the control structure and the internal mechanism respectively, and the reciprocating structure comprises: a gear, a rack frame, a slider, a guide rod and an elastic member A, the gear is meshed with the rack frame, and one side of the rack frame is fixedly connected with the slider, and the slider is also slidably connected with the guide rod, and the guide rod is movably connected with the elastic member A, and one end of the elastic member A is in contact with the slider, when the rack frame performs reciprocating motion, the lubricating liquid stored in the accommodating groove can automatically flow into the interior of the bearing, and the efficiency of adding lubricating liquid to the bearing can be effectively improved.

[0004] However, during actual use, due to the limitation of its own structure, this structure can only perform disorderly flow lubrication operations inside the bearing. However, as the thin-walled bearing is continuously rotated, a small amount of debris will be generated between the parts. The debris will flow inside the thin-walled bearing with the lubricating oil and cannot be cleaned in time. Subsequently, it is easy to cause scratches on the internal components of the thin-walled bearing, affecting the service life of the thin-walled bearing. At the same time, the equipment usually adopts an integrated structural design, and the thin-walled bearing cannot be quickly disassembled, assembled and maintained, which cannot meet daily use needs. Therefore, it is urgent to design a self-lubricating thin-walled bearing to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a self-lubricating thin-walled bearing to solve the problem that the existing structure proposed in the above background technology can only perform disorderly flow lubrication operations inside the bearing due to the limitations of its own structure during actual use. However, as the thin-walled bearing is continuously rotated, a small amount of debris will be generated between the parts. The debris will flow inside the thin-walled bearing with the lubricating oil and cannot be cleaned in time. The flowing debris can easily scratch the internal components of the thin-walled bearing, affecting the service life of the thin-walled bearing. At the same time, the equipment usually adopts an integrated structural design, and the thin-walled bearing cannot be quickly disassembled, assembled and maintained subsequently, and cannot meet daily use needs.

[0006] To achieve the above object, the present invention provides the following technical solution: a self-lubricating thin-walled bearing, comprising a bearing sleeve, a shaft seat outer ring is arranged inside the bearing sleeve, a bearing inner ring is arranged inside the shaft seat outer ring, an upper sleeve ring frame is sleeved on the top end of the bearing sleeve, a lower sleeve ring frame is sleeved on the bottom end of the bearing sleeve, a retaining frame is arranged between the shaft seat outer ring and the bearing inner ring, and an inner wall of the bearing inner ring is arranged with a mounting inner ring;

[0007] A shunt side frame, the four sides of the side of the bearing sleeve are sleeved with a shunt side frame, the bottom end of the shunt side frame is fixedly connected with a sleeve base, the bottom of the sleeve base is movably connected with a control base, the surface of the control base is fixedly connected with a twisting seat, the surface of the twisting seat is provided with a liquid storage cone disk, the inner center of the control base is provided with a micro-liquid control pump, the interior of the micro-liquid control pump is provided with an oil filter core, and the surface of the control base is provided with shunt grooves on the four sides.

[0008] Preferably, the top end of the diversion side frame is movably connected with a top cover, the bottom end of the inner wall of the top cover is provided with a docking ring groove, the docking ring groove is adapted to the upper sleeve ring frame, and the four corners of the bottom of the top cover are provided with docking card slots, the docking card slots are adapted to the diversion side frame.

[0009] Preferably, the inner wall of the sleeve base is provided with a mounting ring seat, and the interior of the mounting ring seat is provided with a mounting thread groove.

[0010] Preferably, the inner wall of the diversion side frame is provided with a fitting inner pad, the upper and lower ends of the inner wall of the diversion side frame are provided with diversion ports, and the back of the diversion side frame is provided with a diversion filter element.

[0011] Preferably, a filter ring net is provided at the top edge of the retaining frame, and a lower row ring grid seat is provided at the bottom edge of the outer ring of the shaft seat.

[0012] Preferably, the inner top wall of the upper sleeve ring frame is provided with a shrink rubber ring, and the bottom end of the shrink rubber ring is fixedly connected with a top pressure ring seat.

[0013] Preferably, the inner wall of the upper sleeve ring frame is provided with a sleeve groove, and the inner wall of the sleeve groove is provided with an inner ring grille groove.

[0014] Preferably, diversion grid grooves are provided on the four sides of the side of the upper sleeve ring frame.

[0015] Preferably, a liquid inlet ring grille seat is provided at the top end of the side surface of the bearing sleeve, and a liquid outlet ring grille seat is provided at the bottom end of the side surface of the bearing sleeve.

[0016] Preferably, sealing rubber rings are provided on the upper and lower edge portions of the bearing sleeve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The self-lubricating thin-walled bearing can make the lubricating oil in the thin-walled bearing flow more efficiently and orderly through the bearing sleeve, shaft seat outer ring, bearing inner ring, upper sleeve ring frame, lower sleeve ring frame, retaining frame, mounting inner ring, diverter side frame, sleeve base, control base, liquid storage cone disk, micro liquid control pump, oil filter core, diverter groove, diverter port, diverter filter core, filter ring net, lower discharge ring grille seat, sleeve groove, inner ring grille groove, diverter grille groove, liquid inlet ring grille seat, liquid outlet ring grille seat and sealing rubber ring. The operator first sleeves and installs the thin-walled bearing composed of the shaft seat outer ring, the bearing inner ring and the retaining frame on the inner wall of the bearing sleeve, and then sleeves the upper sleeve ring frame and the lower sleeve ring frame on the upper and lower ends of the bearing sleeve respectively. After the shrinkage rubber rings on the inner walls of the upper and lower sleeve ring frames are adapted and shrunk, they are matched with the top pressure ring seat at one end to position and dock with the sealing rubber rings at the upper and lower ends of the bearing sleeve to ensure the sealing of the bearing sleeve and the upper and lower sleeve ring frames. At this time, the inner ring grille groove at the sleeve groove on the inner wall of the upper sleeve ring frame can be The bearing sleeve, the upper sleeve ring frame and the lower sleeve ring frame can be installed on the sleeve base as a whole, and installed and used through the installation inner ring of the inner wall of the bearing inner ring. At the same time, when the thin-walled bearing rotates in daily operation, the micro-liquid control pump inside the sleeve base can be started to suck the lubricating oil at the liquid storage cone disk, and then evenly divert it to the diversion groove, and then enter the diversion grid of the upper sleeve ring frame at the top along the diversion side frames on the four sides. The oil flows through the groove, and then evenly enters the liquid inlet ring grid seat at the top of the bearing sleeve along the inner ring grid groove of the upper sleeve ring frame, and then enters the outer ring of the shaft seat, the inner ring of the bearing and the interior of the upper sleeve ring frame through the filtration of the filter ring net. After that, it can flow out from the lower row ring grid seat at the bottom of the outer ring of the shaft seat, and then flow back into the interior of the liquid storage cone disk. The oil filter core inside the micro-liquid control pump can quickly filter and remove the waste debris in the refluxed lubricating oil, thereby ensuring that the debris generated during the operation of the thin-walled bearing is quickly removed, which reflects the practicality of the equipment design.

[0019] The self-lubricating thin-walled bearing further improves the overall use effect of the equipment by arranging the bearing sleeve, shaft seat outer ring, bearing inner ring, upper sleeve ring frame, lower sleeve ring frame, diversion side frame, sleeve base, control base, twisting seat, top cover, docking ring groove, docking card groove, installation ring seat, installation threaded groove, fitting inner pad, shrink rubber ring and top pressure ring seat. In daily use, the staff can cover and fix the top ends of the four groups of diversion side frames through the top cover. At this time, the docking ring groove at the bottom end of the inner wall of the top cover is fixed to the top end of the upper sleeve ring frame, and the docking card grooves on the four sides of the bottom of the top cover are sleeved and fixed to the top end of the diversion side frame, thereby ensuring the stability of the bearing sleeve as a whole when used inside the sleeve base and the diversion side frame, ensuring that the thin-walled bearing is installed and used more stably, and can be subsequently removed from the sleeve base The top is taken out, and then the bearing sleeve, the upper sleeve connecting ring frame and the lower sleeve connecting ring frame are quickly removed from the inside of the four-group diversion side frame as a whole. The upper sleeve connecting ring frame and the lower sleeve connecting ring frame can also be quickly removed from both ends of the bearing sleeve, so as to ensure that the thin-walled bearing composed of the outer ring of the shaft seat inside the bearing sleeve, the inner ring of the bearing and the retaining frame can be quickly maintained internally. During the subsequent reset, it is quickly docked with the diversion port and the diversion filter element of the diversion side frame, and the fitting inner pad of the inner wall of the diversion side frame is used to position and fit the side of the bearing sleeve, so as to quickly complete the assembly and use of the thin-walled bearing. At the same time, the control base can be threadedly connected to the mounting thread groove of the mounting ring seat on the inner wall of the sleeve base through the twisting seat on the surface. This design facilitates the replacement and use of the internal lubricating oil of the equipment at any time, meets the daily use needs, and reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0021] Figure 2 is an overall schematic diagram of the bearing sleeve structure of the present invention;

[0022] Figure 3 It is an overall schematic diagram of the upper sleeve ring frame structure of the present invention;

[0023] Figure 4 It is an overall schematic diagram of installing the inner ring structure of the present invention;

[0024] Figure 5 It is an overall schematic diagram of the sleeve base structure of the present invention;

[0025] Figure 6 It is an overall schematic diagram of the control base structure of the present invention;

[0026] Figure 7 For the present invention Figure 1 A magnified schematic diagram of the structure at center A;

[0027] Figure 8 For the present invention Figure 1A magnified schematic diagram of the structure at B in the figure.

[0028] In the figure: 1. bearing sleeve; 2. shaft seat outer ring; 3. bearing inner ring; 4. upper sleeve ring frame; 5. lower sleeve ring frame; 6. retaining frame; 7. installation inner ring; 8. diversion side frame; 9. sleeve base; 10. control base; 11. twisting seat; 12. liquid storage cone disk; 13. micro liquid control pump; 14. oil filter element; 15. diversion groove; 16. top cover; 17. docking ring groove; 18. docking card slot; 19. installation ring seat; 20. installation thread groove; 21. fitting inner pad; 22. diversion port; 23. diversion filter element; 24. filter ring net; 25. lower discharge ring grille seat; 26. shrink rubber ring; 27. top pressure ring seat; 28. sleeve groove; 29. ​​inner ring grille groove; 30. diversion grille groove; 31. liquid inlet ring grille seat; 32. liquid outlet ring grille seat; 33. sealing rubber ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-8 , an embodiment provided by the present invention:

[0031] A self-lubricating thin-walled bearing comprises a bearing sleeve 1, wherein a shaft seat outer ring 2 is arranged inside the bearing sleeve 1, a bearing inner ring 3 is arranged inside the shaft seat outer ring 2, an upper sleeve ring frame 4 is sleeved on the top end of the bearing sleeve 1, a lower sleeve ring frame 5 is sleeved on the bottom end of the bearing sleeve 1, a retaining frame 6 is arranged between the shaft seat outer ring 2 and the bearing inner ring 3, an inner wall of the bearing inner ring 3 is provided with an installation inner ring 7, a filter ring net 24 is arranged on the top edge of the retaining frame 6, a lower row ring grille seat 25 is arranged on the bottom end edge of the shaft seat outer ring 2, a shrink rubber ring 26 is arranged on the inner top wall of the upper sleeve ring frame 4, a top pressure ring seat 27 is fixedly connected to the bottom end of the shrink rubber ring 26, a sleeve groove 28 is arranged on the inner wall of the upper sleeve ring frame 4, an inner ring grille groove 29 is arranged on the inner wall of the sleeve groove 28, a diversion grille groove 30 is arranged on the four sides of the upper sleeve ring frame 4, a liquid inlet ring grille seat 31 is arranged on the top end of the side of the bearing sleeve 1, and the bearing sleeve 1 is provided with a liquid outlet ring grille seat 32 at the bottom end of the side surface of the bearing sleeve 1, and sealing rubber rings 33 are provided at the upper and lower edges of the bearing sleeve 1. The upper sleeve ring frame 4 and the lower sleeve ring frame 5 are respectively sleeved on the upper and lower ends of the bearing sleeve 1. After the shrinkage rubber rings 26 on the inner walls of the upper sleeve ring frame 4 and the lower sleeve ring frame 5 are adapted and shrunk, they are matched with the top pressure ring seat 27 at one end to be positioned and docked with the sealing rubber rings 33 at the upper and lower ends of the bearing sleeve 1 to ensure the sealing of the bearing sleeve 1 and the upper sleeve ring frame 4 and the lower sleeve ring frame 5. At this time, the inner ring grille groove 29 at the sleeve groove 28 on the inner wall of the upper sleeve ring frame 4 can be docked and connected with the liquid inlet ring grille seat 31 and the liquid outlet ring grille seat 32 at the upper and lower ends of the side surface of the bearing sleeve 1. Then the bearing sleeve 1, the upper sleeve ring frame 4 and the lower sleeve ring frame 5 can be installed on the sleeve base 9 as a whole, and installed and used through the installation inner ring 7 on the inner wall of the bearing inner ring 3.

[0032] A shunt side frame 8 is provided on the four sides of the side of the bearing sleeve 1. The bottom end of the shunt side frame 8 is fixedly connected with a sleeve base 9. The bottom of the sleeve base 9 is movably connected with a control base 10. The surface of the control base 10 is fixedly connected with a twisting seat 11. The surface of the twisting seat 11 is provided with a liquid storage cone 12. A micro-liquid control pump 13 is provided at the inner center of the control base 10. An oil filter core 14 is provided inside the micro-liquid control pump 13. A shunt groove 15 is provided on the four sides of the surface of the control base 10. The top of the shunt side frame 8 is movably connected with a top cover 16. A docking ring groove 17 is provided at the bottom end of the inner wall of the top cover 16. The docking ring groove 17 is adapted to the upper sleeve ring frame 4. The bottom four corners of the top cover 16 are provided with docking card grooves 18, the docking slot 18 is adapted to the diverter side frame 8, the inner wall of the sleeve base 9 is provided with a mounting ring seat 19, the interior of the mounting ring seat 19 is provided with a mounting threaded groove 20, the inner wall of the diverter side frame 8 is provided with a fitting inner pad 21, the upper and lower ends of the inner wall of the diverter side frame 8 are provided with a diverter port 22, and the back of the diverter side frame 8 is provided with a diverter filter element 23. When resetting, it is quickly docked with the diverter port 22 and the diverter filter element 23 of the diverter side frame 8, and the fitting inner pad 21 of the inner wall of the diverter side frame 8 is used to position and fit the side of the bearing sleeve 1, so as to quickly complete the assembly and use of the thin-walled bearing, and at the same time, the control base 10 can be threadedly connected at the mounting threaded groove 20 of the mounting ring seat 19 on the inner wall of the sleeve base 9 through the twisting seat 11 on the surface.

[0033] Working principle: When in use, the user first sleeves and installs the thin-walled bearing composed of the shaft seat outer ring 2, the bearing inner ring 3 and the retaining frame 6 on the inner wall of the bearing sleeve 1, and then sleeves the upper sleeve ring frame 4 and the lower sleeve ring frame 5 on the upper and lower ends of the bearing sleeve 1 respectively. After the shrinkage rubber rings 26 on the inner walls of the upper sleeve ring frame 4 and the lower sleeve ring frame 5 are adapted and shrunk, they are matched with the top pressure ring seat 27 at one end to position and dock with the sealing rubber rings 33 at the upper and lower ends of the bearing sleeve 1 to ensure the sealing of the bearing sleeve 1 and the upper sleeve ring frame 4 and the lower sleeve ring frame 5. At this time, the inner ring grille groove 29 at the sleeve groove 28 on the inner wall of the upper sleeve ring frame 4 can be aligned with the liquid inlet ring grille seat 31 and the liquid outlet ring grille seat at the upper and lower ends of the side of the bearing sleeve 1. 32 for docking and connection, then the bearing sleeve 1, the upper sleeve ring frame 4 and the lower sleeve ring frame 5 can be installed on the sleeve base 9 as a whole, and installed and used through the installation inner ring 7 on the inner wall of the bearing inner ring 3. At the same time, when the thin-walled bearing is rotating and running, the micro-liquid control pump 13 inside the sleeve base 9 can be started to make it suck the lubricating oil at the liquid storage cone 12, and then evenly divert it to the diversion groove 15, and then enter the diversion grid groove 30 of the upper sleeve ring frame 4 at the top along the diversion side frame 8 on the four sides of the side, and then evenly enter the liquid inlet ring grid seat 31 at the top of the bearing sleeve 1 along the inner ring grid groove 29 of the upper sleeve ring frame 4, and then enter the shaft seat outer ring 2 and the bearing inner ring through the filtration of the filter ring net 24. The oil filter core 14 inside the micro-liquid control pump 13 can quickly filter and remove the waste debris in the refluxed lubricating oil, thereby ensuring that the debris generated during the operation of the thin-walled bearing is quickly removed. In daily use, the staff can cover and fix the top of the four groups of diversion side frames 8 through the top cover 16. At this time, the docking ring groove 17 at the bottom end of the inner wall of the top cover 16 is adapted to be fixed to the top of the upper sleeve ring frame 4, and the docking card grooves 18 on the four sides of the bottom of the top cover 16 are sleeved and fixed on the top of the diversion side frame 8, thereby ensuring that the bearing sleeve 1 is as a whole on the sleeve base. 9 and the stability of the internal use of the shunt side frame 8, ensuring that the thin-walled bearing is installed and used more stably, and subsequently, as the top cover 16 is taken out from the top, the bearing sleeve 1, the upper sleeve ring frame 4 and the lower sleeve ring frame 5 can be quickly removed from the inside of the four-group shunt side frame 8 as a whole, and the upper sleeve ring frame 4 and the lower sleeve ring frame 5 can also be quickly removed from both ends of the bearing sleeve 1, thereby ensuring that the thin-walled bearing composed of the shaft seat outer ring 2, the bearing inner ring 3 and the retaining frame 6 inside the bearing sleeve 1 is quickly maintained. During the subsequent reset, it is quickly docked with the shunt port 22 and the shunt filter element 23 of the shunt side frame 8, and the fitting inner pad 21 of the inner wall of the shunt side frame 8 is used to position and fit the side of the bearing sleeve 1, so that the thin-walled bearing is quickly assembled and used.At the same time, the control base 10 can be threadedly connected to the mounting thread groove 20 of the mounting ring seat 19 on the inner wall of the sleeve base 9 through the surface screwing seat 11. This design facilitates the replacement and use of the internal lubricating oil of the equipment at any time to meet the daily use needs. The above is the entire working principle of the present invention.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A self-lubricating thin-walled bearing, comprising a bearing sleeve (1), characterized in that: The bearing sleeve (1) is provided with a shaft seat outer ring (2) inside, and a bearing inner ring (3) is provided inside the shaft seat outer ring (2). An upper sleeve ring frame (4) is sleeved on the top end of the bearing sleeve (1), and a lower sleeve ring frame (5) is sleeved on the bottom end of the bearing sleeve (1). A retaining frame (6) is provided between the shaft seat outer ring (2) and the bearing inner ring (3), and an inner wall of the bearing inner ring (3) is provided with a mounting inner ring (7). A flow-dividing side frame (8) is provided on the four sides of the side of the bearing sleeve (1); the bottom end of the flow-dividing side frame (8) is fixedly connected to a sleeve base (9); the bottom of the sleeve base (9) is movably connected to a control base (10); the surface of the control base (10) is fixedly connected to a twisting seat (11); the surface of the twisting seat (11) is provided with a liquid storage cone disk (12); a micro-liquid control pump (13) is provided at the center of the control base (10); an oil filter core (14) is provided inside the micro-liquid control pump (13); and flow-dividing grooves (15) are provided on the four sides of the surface of the control base (10).

2. A self-lubricating thin-walled bearing according to claim 1, characterized in that: The top end of the diversion side frame (8) is movably connected to a top cover (16), the bottom end of the inner wall of the top cover (16) is provided with a docking ring groove (17), the docking ring groove (17) is matched with the upper sleeve ring frame (4), and the four corners of the bottom of the top cover (16) are provided with docking card grooves (18), the docking card grooves (18) are matched with the diversion side frame (8).

3. A self-lubricating thin-walled bearing according to claim 1, characterized in that: The inner wall of the sleeve base (9) is provided with a mounting ring seat (19), and the interior of the mounting ring seat (19) is provided with a mounting thread groove (20).

4. A self-lubricating thin-walled bearing according to claim 1, characterized in that: The inner wall of the diversion side frame (8) is provided with a fitting inner pad (21), the upper and lower ends of the inner wall of the diversion side frame (8) are provided with diversion ports (22), and the back of the diversion side frame (8) is provided with a diversion filter element (23).

5. The self-lubricating thin-walled bearing according to claim 1, characterized in that: The top edge of the retaining frame (6) is provided with a filter ring net (24), and the bottom edge of the shaft seat outer ring (2) is provided with a lower row ring grid seat (25).

6. A self-lubricating thin-walled bearing according to claim 1, characterized in that: The inner top wall of the upper sleeve ring frame (4) is provided with a shrink rubber ring (26), and the bottom end of the shrink rubber ring (26) is fixedly connected to a top pressure ring seat (27).

7. A self-lubricating thin-walled bearing according to claim 1, characterized in that: The inner wall of the upper sleeve ring frame (4) is provided with a sleeve groove (28), and the inner wall of the sleeve groove (28) is provided with an inner ring grille groove (29).

8. The self-lubricating thin-walled bearing according to claim 1, characterized in that: The four sides of the upper sleeve ring frame (4) are provided with flow dividing grid grooves (30).

9. The self-lubricating thin-walled bearing according to claim 1, characterized in that: A liquid inlet ring grille seat (31) is provided at the top end of the side surface of the bearing sleeve (1), and a liquid outlet ring grille seat (32) is provided at the bottom end of the side surface of the bearing sleeve (1).

10. The self-lubricating thin-walled bearing according to claim 1, characterized in that: Sealing rubber rings (33) are provided at the upper and lower edges of the bearing sleeve (1).

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