High-reliability long-service-life mounted bearing

Abstract

The high-reliability long-service-life mounted bearing comprises a base, a shell is welded to the top of the base, an outer ring and an inner ring are arranged in the middle of the shell, and balls are connected between the outer ring and the inner ring in an equal-angle rolling mode; an oil storage bin is fixed to the top of the shell. According to the high-reliability long-service-life mounted bearing, after the bearing rotates at a high speed for a long time, a large amount of heat can be generated, the heat is transmitted into the fixing box through a heat conduction rod, methyl acetate is heated into steam, pressure is generated, then a piston block can be pushed to move in the fixing box, and meanwhile a guide plate is driven by a connecting plate to move; then the through hole in the movable semi-ring coincides with the oil inlet pipeline, at the moment, lubricating oil in the oil storage bin enters the ball through the oil inlet pipeline, so that the ball is self-lubricated, frictional resistance and abrasion are greatly reduced, the service life of the ball is prolonged, and meanwhile the limit rotating speed and the bearing capacity of the bearing can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, in particular to a high-reliability and long-life seated bearing. Background Art

[0002] A bearing unit is a bearing unit that combines a rolling bearing with a bearing seat. It is mainly composed of an outer spherical bearing and a bearing seat. Most outer spherical bearings have a spherical outer diameter and are installed together with a bearing seat with a spherical inner hole.

[0003] Defect 1: The rolling bearings of existing bearing units need to be lubricated regularly and can only bear small radial loads. They need to be continuously maintained on a daily basis and lubricants need to be added to the inside of the bearings to ensure the lubrication of the bearings. In addition, the rolling bearings of existing bearing units can only bear radial loads, but not axial loads or combined loads of radial and axial forces acting simultaneously.

[0004] In order to solve the above-mentioned defect one, the prior art (application number: 202222861905.0, Chinese patent with authorization announcement date of 2023-04-28) discloses a self-lubricating seat bearing, which is provided with a casting seat, an oil-free bushing axis and a fixed seat sleeve, the oil-free bushing axis has an assembly hole, the fixed seat shaft is sleeved in the assembly hole, and the fixed seat shaft is sleeved in the bushing shaft core fixed seat. The copper alloy oil-free bushing has high load and self-lubricating characteristics, which replaces the rotation function of the rolling bearing, and solves the problem that the rolling bearing needs to be frequently lubricated and cannot be used when dry; through the provision of a casting seat and an oil-free bushing axis, the oil-free bushing axis is assembled in the inner hole of the casting seat, the inner hole of the fixed seat is designed with an installation groove, the oil-free bushing axis is assembled in the inner hole of the fixed seat through the installation groove, the inner hole is designed to be spherical, and the outer ring of the oil-free bushing axis is also spherical. The spherical shape allows the bearing to withstand radial loads while also bearing axial loads, solving the problem that the rolling bearing can only withstand loads in a single direction;

[0005] Defect 2: However, the existing seat bearings have poor wear resistance, which can easily lead to wear of the seat bearings due to long-term transmission, resulting in failure of long-term lubrication and reduced efficiency;

[0006] In order to solve the above-mentioned defect 2, the prior art (application number: 202221722873.X, Chinese patent with authorization announcement date of 2022-12-23) discloses a long-term lubricated seat bearing, in which a first wear-resistant layer is sprayed on the inner surface of the bearing body, a second wear-resistant layer is sprayed on the inner surface of the first wear-resistant layer, and a third wear-resistant layer is sprayed on the inner surface of the second wear-resistant layer, which has a high-efficiency wear-resistant effect, thereby preventing the reduction of bearing lubrication due to wear, improving the lubrication efficiency of the bearing, and solving the problem that the existing seat bearing has poor wear resistance, which easily leads to wear of the seat bearing due to long-term transmission, and then causes the problem of lack of long-term lubrication and reduced use efficiency. A first corrosion-resistant layer is sprayed on the right side of the base, a second corrosion-resistant layer is sprayed on the right side of the first corrosion-resistant layer, and a third corrosion-resistant layer is sprayed on the right side of the second corrosion-resistant layer, which has a corrosion-resistant effect, thereby preventing oil erosion;

[0007] The prior art achieves self-lubrication by setting a casting seat and an oil-free bushing axis, and prevents the reduction of bearing lubrication caused by wear by setting a wear-resistant layer. However, relying solely on the wear-resistant layer to prevent the bearing from being worn makes the wear-resistant effect poor, causing the bearing to fail due to excessive wear and then be unable to continue to be used, resulting in a short service life. At the same time, the bearing will generate vibration and noise during operation, resulting in the equipment running unsmoothly, and the used lubricating oil is inconvenient to remove due to the large amount of heat absorbed.

[0008] Therefore, we propose a high-reliability and long-life seated bearing to solve the above problems. Summary of the invention

[0009] The purpose of the present invention is to provide a highly reliable and long-life seated bearing to solve the problem that the above-mentioned background technology only relies on a wear-resistant layer to prevent the bearing from being worn, resulting in poor wear resistance, causing the bearing to fail due to excessive wear and then be unable to continue to be used, resulting in a short service life. At the same time, the bearing will generate vibration and noise during operation, resulting in the equipment running unsmoothly, and the used lubricating oil is inconvenient to remove due to the large amount of heat absorbed.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a high-reliability and long-life seated bearing, comprising a base, a shell welded to the top of the base, an outer ring and an inner ring respectively arranged in the middle position of the shell, and balls are connected at equal angles between the outer ring and the inner ring.

[0011] An oil storage tank is fixed on the top of the shell, and an oil inlet pipeline is connected to the outer surface of the shell at an equal angle. A movable half ring is connected to the inside of the shell, and a guide plate is fixed to the inner side of the movable half ring at an equal angle.

[0012] A fixing box is arranged at an equal angle inside the housing and located inside the movable half ring, and a piston block is connected inside the fixing box. The piston block is connected to the guide plate through a connecting plate.

[0013] A heat-conducting rod is fixed at an equal angle on one side of the fixed box inside the shell, a first return spring is installed at the connection position between the right end of the movable semi-ring and the shell, a cooling box is fixed below the left and right sides of the shell, and heat sinks are connected to the front of the cooling box at equal intervals.

[0014] Preferably, an oil filling port is fixed on the top of the oil storage tank, the interior of the oil storage tank is connected to the inner side of the outer ring through an oil inlet pipe, the movable semi-ring passes through the interiors of multiple oil inlet pipes, and through holes are opened at equal angles inside the movable semi-ring, and the through holes correspond to the positions of the oil inlet pipes.

[0015] Preferably, the movable half ring is slidably connected to the outer shell, both ends of the connecting plate are hingedly connected to the opposite surfaces of the piston block and the guide plate respectively, and the piston block is sealingly slidably connected to the inside of the fixed box.

[0016] Preferably, one end of the heat-conducting rod extends into the interior of the fixing box, and the other end of the heat-conducting rod extends into the inner side of the outer ring, and methyl acetate is stored in the interior of the fixing box.

[0017] Preferably, an oil drain pipe is fixedly connected to the connection position between the cooling box and the outer ring, driven gears are connected to the left and right sides of the interior of the outer shell, a sealing plate is provided inside the oil drain pipe, and the sealing plate and the driven gear are connected by a traction rope, and a second return spring is installed between one side of the sealing plate and the interior of the outer shell.

[0018] Preferably, first tooth blocks are fixed at equal angles on the inner side surfaces at both ends of the movable half ring, the driven gear is rotatably connected to the inside of the housing via a shaft, and the driven gear and the plurality of first tooth blocks are meshingly connected.

[0019] Preferably, one end of the traction rope is wound around the shaft end of the driven gear, and the other end of the traction rope is fixed to one side of a blocking plate, one side of the blocking plate passes through the interior of the oil drain pipe, and the blocking plate and the oil drain pipe are sealed and slidably connected.

[0020] Preferably, the front side of the shell is provided with slots at equal angles, a dustproof plate is provided in front of the shell, and blocks are fixed at equal intervals on the back side of the dustproof plate, a second tooth block is fixed at equal intervals on one side of the block, a driving gear is connected to one side of the slot inside the shell, and a limiting plate is fixed on the axial end of the driving gear, and fixed magnets are installed on the side of the limiting plate away from one end of the driving gear and the front side of the dustproof plate.

[0021] Preferably, the card block and the card slot are snap-fitted, the driving gear is rotatably connected to the inside of the shell through an axis, and the driving gear and the plurality of second gear blocks are meshingly connected, the limit plate is arranged in an inverted "L" shape, and the front end of the limit plate extends out of the front side of the shell.

[0022] Preferably, the fixed magnet on the limit plate corresponds to the fixed magnet on the dustproof plate, and the magnetic poles of the two fixed magnets on opposite sides are opposite, and a sealing ring is embedded and installed on the back side of the dustproof plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the high-reliability and long-life seated bearing adopts a new structural design, the specific contents of which are as follows:

[0024] (1) When the bearing rotates at high speed for a long time, a large amount of heat will be generated, and the heat is transferred to the inside of the fixed box by the heat conducting rod, so that the methyl acetate is heated into steam and generates pressure, which can push the piston block to move in the fixed box. At the same time, the connecting plate drives the guide plate to move, so that the through hole on the movable half ring coincides with the oil inlet pipe. At this time, the lubricating oil inside the oil storage tank enters the ball through the oil inlet pipe, thereby self-lubricating the ball, greatly reducing friction resistance and wear, and then extending its service life. At the same time, it can improve the limit speed and load-bearing capacity of the bearing;

[0025] Furthermore, when the internal heat of the bearing decreases, the elastic force of the first return spring is used to drive the movable half ring to return to its original position. At this time, the through hole on the movable half ring is staggered with the oil inlet pipeline, thereby closing the oil inlet pipeline.

[0026] (2) When the movable half ring moves, the multiple first tooth blocks on the side are used to drive the driven gear to rotate, so that the driven gear reels in the traction rope, and the traction rope is used to pull the sealing plate to move, so that the lubricating oil inside the bearing enters the cooling box through the oil drain pipe, and the lubricating oil can be dissipated through the heat sink, so as to facilitate the subsequent disposal of the used lubricating oil.

[0027] (3) The dustproof plate is installed in the card slot of the housing through the card block, and the card block uses the multiple second tooth blocks on the side to drive the driving gear to rotate, so that the limit plate rotates and drives a fixed magnet to contact another fixed magnet. The limit plate can be fixed by using the principle of opposite magnets attracting each other, thereby completing the installation of the dustproof plate. The dustproof plate can prevent external dust from contacting the ball bearing, and the sealing ring can prevent lubricating oil leakage and dust and other pollutants from entering;

[0028] Furthermore, when the dust shield needs to be replaced, it is only necessary to rotate the two limit plates outward to separate the two fixed magnets and drive the driving gear to rotate in the opposite direction, thereby separating the dust shield and the card block from the outer shell, thereby facilitating quick removal and replacement of the dust shield. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the top-sectional structure of the housing and the dustproof plate of the present invention;

[0031] Figure 3 This is a schematic diagram of the moving structure of the blocking plate of the present invention;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the oil storage tank and the oil inlet pipeline of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the outer ring, inner ring and balls of the present invention;

[0035] Figure 7 It is a schematic diagram of the three-dimensional structure of the movable semi-ring of the present invention;

[0036] Figure 8 It is a schematic diagram of the three-dimensional structure of the cooling box, the oil drain pipe and the driven gear of the present invention;

[0037] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limit plate, the driving gear and the clamping block of the present invention;

[0038] Fig.10 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0039] Fig.11 This is a schematic diagram of the enlarged structure of point B in the present invention 2.

[0040] In the figure: 1. base; 2. shell; 3. outer ring; 4. inner ring; 5. ball; 6. oil storage tank; 7. oil inlet pipe; 8. movable half ring; 9. fixed box; 10. heat conducting rod; 11. piston block; 12. connecting plate; 13. guide plate; 14. driven gear; 15. first return spring; 16. traction rope; 17. cooling box; 18. heat sink; 19. oil discharge pipe; 20. dustproof plate; 21. block; 22. limit plate; 23. sealing ring; 24. driving gear; 25. fixed magnet; 26. through hole; 27. blocking plate; 28. second return spring. DETAILED DESCRIPTION

[0041] 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.

[0042] See also Figure 1-Figure 11 , the present invention provides the following technical solutions: a highly reliable and long-life seated bearing;

[0043] Embodiment 1: In order to solve the problem that the prior art only relies on the wear-resistant layer to prevent the bearing from being worn, resulting in poor wear-resistant effect, causing the bearing to fail due to excessive wear, and then cannot be used any more, resulting in a short service life, and at the same time, the bearing will generate vibration and noise during operation, resulting in the equipment running unsteadily, and the used lubricating oil is inconvenient to remove due to the absorption of a large amount of heat, the following scheme is disclosed, and specific reference is made to Figure 1 and Figure 4-Figure 7 and Fig.10 As shown, it includes a base 1, a shell 2 is welded on the top of the base 1, an outer ring 3 and an inner ring 4 are respectively arranged in the middle position of the shell 2, and balls 5 are connected between the outer ring 3 and the inner ring 4 at equal angles.

[0044] An oil storage tank 6 is fixed on the top of the shell 2, and an oil inlet pipe 7 is connected to the outer surface of the shell 2 at an equal angle, and a movable semi-ring 8 is connected to the inside of the shell 2, and a guide plate 13 is fixed to the inner side of the movable semi-ring 8 at an equal angle; a fixed box 9 is arranged at an equal angle on the inner side of the movable semi-ring 8 inside the shell 2, and a piston block 11 is connected to the inside of the fixed box 9, and the piston block 11 is connected to the guide plate 13 through a connecting plate 12, and the movable semi-ring 8 is slidably connected to the shell 2, and both ends of the connecting plate 12 are hingedly connected to the opposite surfaces of the piston block 11 and the guide plate 13, and the piston block 11 is sealingly slidably connected to the fixed box 9 The interior of the outer shell 2 is located on one side of the fixed box 9 and is fixed with a heat-conducting rod 10 at an equal angle. One end of the heat-conducting rod 10 extends into the interior of the fixed box 9, and the other end of the heat-conducting rod 10 extends into the inner side of the outer ring 3. Methyl acetate is stored in the fixed box 9. A first return spring 15 is installed at the connection position between the right end of the movable semi-ring 8 and the outer shell 2. An oil filling port is fixedly provided on the top of the oil storage bin 6. The interior of the oil storage bin 6 is connected to the inner side of the outer ring 3 through an oil inlet pipe 7. The movable semi-ring 8 runs through the interiors of multiple oil inlet pipes 7, and through holes 26 are provided at equal angles in the interior of the movable semi-ring 8, and the through holes 26 correspond to the positions of the oil inlet pipes 7.

[0045] When the bearing rotates at high speed for a long time, a large amount of heat will be generated. At this time, the heat conducting rod 10 is used to transfer the heat to the inside of the fixed box 9, so that the methyl acetate inside the fixed box 9 is heated into steam and generates pressure, which can push the piston block 11 to move in the fixed box 9. At the same time, the connecting plate 12 is used to drive the guide plate 13 to move, so that the through hole 26 on the movable semi-ring 8 coincides with the oil inlet pipe 7. At this time, the lubricating oil inside the oil storage tank 6 flows into the ball 5 through the oil inlet pipe 7, so that the bearing can be self-lubricated, greatly reducing friction resistance and wear, and then extending its service life. At the same time, it can improve the bearing's maximum speed and load-bearing capacity. Then, when the bearing temperature drops, the methyl acetate inside the fixed box 9 is evaporated, and the movable semi-ring 8 is reset under the elastic force of the first reset spring 15. At this time, the through hole 26 on the movable semi-ring 8 is staggered with the oil inlet pipe 7, so that the oil inlet pipe 7 can be closed. At the same time, the guide plate 13 and the connecting plate 12 can push the piston block 11 to reset.

[0046] Embodiment 2: Different from Embodiment 1, this embodiment utilizes heat sink 18 to dissipate heat and cool the used lubricating oil, which is convenient for subsequent treatment of the used lubricating oil. Figure 1 , Figure 3 , Figure 4 , Figure 8 and Fig.10 As shown, cooling boxes 17 are fixed at the lower part of the left and right sides of the shell 2, and heat sinks 18 are connected to the front of the cooling box 17 at equal intervals, and an oil drain pipe 19 is fixedly connected to the connection position between the cooling box 17 and the outer ring 3, and the left and right sides of the shell 2 are connected to the driven gear 14, and a sealing plate 27 is arranged inside the oil drain pipe 19, and the sealing plate 27 and the driven gear 14 are connected by a traction rope 16, and a second return spring 28 is installed between one side of the sealing plate 27 and the inside of the shell 2, and first gear blocks are fixed at equal angles on the inner side surfaces of the two ends of the movable semi-ring 8, and the driven gear 14 is connected to the inside of the shell 2 by shaft rotation, and the driven gear 14 and the multiple first gear blocks are meshed, one end of the traction rope 16 is wrapped around the shaft end of the driven gear 14, and the other end of the traction rope 16 is fixed to one side of the sealing plate 27, one side of the sealing plate 27 passes through the inside of the oil drain pipe 19, and the sealing plate 27 and the oil drain pipe 19 are sealed and slidably connected.

[0047] When the movable half ring 8 moves to reset, the multiple first tooth blocks on the side are used to drive the driven gear 14 to rotate, so that the driven gear 14 reels in the traction rope 16, and uses the traction rope 16 to pull the sealing plate 27 to move so that it no longer blocks the oil drain pipe 19. The used lubricating oil inside the bearing enters the cooling box 17 through the oil drain pipe 19, and transfers the heat in the lubricating oil to the outside through multiple heat sinks 18, and uses the flowing air outside to dissipate heat and cool it. Then, the internal lubricating oil can be discharged through the drain port on the cooling box 17, so as to facilitate the subsequent treatment of the used lubricating oil. Then, when the movable half ring 8 moves, the driven gear 14 rotates in the opposite direction and relaxes the traction rope 16. At this time, the sealing plate 27 resets under the elastic force of the second reset spring 28 and closes the oil drain pipe 19.

[0048] Embodiment 3: Different from Embodiment 2, this embodiment uses the dustproof plate 20 and the sealing ring 23 to prevent the leakage of lubricating oil and the entry of pollutants such as dust. Figure 2 , Figure 4 and Fig.11 As shown, the front of the shell 2 is provided with slots at equal angles, the front of the shell 2 is provided with a dustproof plate 20, and the back of the dustproof plate 20 is fixed with a block 21 at equal intervals, and a second tooth block is fixed with equal intervals on one side of the block 21, and a driving gear 24 is connected to one side of the slot inside the shell 2, and a limiting plate 22 is fixed on the axial end of the driving gear 24, the block 21 and the slot are engaged, the driving gear 24 is connected to the inside of the shell 2 by shaft rotation, and the driving gear 24 and the plurality of second tooth blocks are meshed, the limiting plate 22 is arranged in an inverted "L" shape, and the front end of the limiting plate 22 extends out of the front of the shell 2, and the side of the limiting plate 22 away from one end of the driving gear 24 and the front of the dustproof plate 20 are both installed with a fixed magnet 25, the fixed magnet 25 on the limiting plate 22 corresponds to the fixed magnet 25 on the dustproof plate 20, and the magnetic poles of the opposite surfaces of the two fixed magnets 25 are opposite, and a sealing ring 23 is embedded and installed on the back of the dustproof plate 20.

[0049] The dustproof plate 20 is installed in the slot of the outer shell 2 through the clamping block 21. At the same time, the clamping block 21 uses multiple second tooth blocks on the side to drive the driving gear 24 to rotate, so that the limit plate 22 rotates, and drives a fixed magnet 25 to contact another fixed magnet 25. At this time, the limit plate 22 can be fixed by utilizing the principle of opposite magnets attracting each other, thereby completing the installation of the dustproof plate 20. At the same time, the sealing ring 23 can prevent the leakage of lubricating oil and the entry of pollutants such as dust, thereby ensuring the cleanliness of the inside of the bearing. Then, when the dustproof plate 20 and the sealing ring 23 need to be replaced, only the two limit plates 22 need to be rotated outward to separate the two fixed magnets 25, and drive the driving gear 24 to rotate in the opposite direction, thereby separating the dustproof plate 20 and the clamping block 21 from the outer shell 2, thereby facilitating the rapid disassembly and replacement of the dustproof plate 20 and the sealing ring 23.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-reliability, long-life seated bearing, comprising a base (1), a shell (2) welded to the top of the base (1), an outer ring (3) and an inner ring (4) respectively arranged in the middle of the shell (2), and balls (5) are connected between the outer ring (3) and the inner ring (4) at equal angles; Features: An oil storage tank (6) is fixed on the top of the shell (2), and an oil inlet pipeline (7) is connected to the outer surface of the shell (2) at an equal angle, and a movable half ring (8) is connected to the inside of the shell (2), and a guide plate (13) is fixed to the inner side of the movable half ring (8) at an equal angle; A fixed box (9) is arranged inside the housing (2) at an equal angle to the inner side of the movable half ring (8), and a piston block (11) is connected to the inside of the fixed box (9), and the piston block (11) is connected to the guide plate (13) via a connecting plate (12); A heat-conducting rod (10) is fixed at an equal angle on one side of the fixed box (9) inside the shell (2), a first return spring (15) is installed at the connection position between the right end of the movable half ring (8) and the shell (2), a cooling box (17) is fixed below the left and right sides of the shell (2), and heat sinks (18) are connected to the front of the cooling box (17) at equal intervals.

2. A high-reliability and long-life seated bearing according to claim 1, characterized in that: An oil filling port is fixedly provided on the top of the oil storage bin (6); the interior of the oil storage bin (6) is connected to the inner side of the outer ring (3) via an oil inlet pipe (7); the movable semi-ring (8) penetrates the interior of a plurality of oil inlet pipes (7); and through holes (26) are provided at equal angles inside the movable semi-ring (8); and the positions of the through holes (26) and the oil inlet pipes (7) correspond.

3. A high-reliability and long-life seated bearing according to claim 1, characterized in that: The movable half ring (8) is slidably connected to the outer shell (2), and the two ends of the connecting plate (12) are respectively hingedly connected to the opposite surfaces of the piston block (11) and the guide plate (13), and the piston block (11) is sealingly slidably connected to the inside of the fixed box (9).

4. A high-reliability and long-life seated bearing according to claim 1, characterized in that: One end of the heat-conducting rod (10) extends into the interior of the fixed box (9), and the other end of the heat-conducting rod (10) extends into the inner side of the outer ring (3), and methyl acetate is stored in the interior of the fixed box (9).

5. The high-reliability and long-life seated bearing according to claim 1, characterized in that: An oil drain pipe (19) is fixedly connected to the connection position between the cooling box (17) and the outer ring (3), and the left and right sides of the interior of the outer shell (2) are connected to the driven gear (14). A sealing plate (27) is provided inside the oil drain pipe (19), and the sealing plate (27) and the driven gear (14) are connected by a traction rope (16), and a second return spring (28) is installed between one side of the sealing plate (27) and the interior of the outer shell (2).

6. A high-reliability and long-life seated bearing according to claim 5, characterized in that: First tooth blocks are fixed at equal angles on the inner side surfaces of both ends of the movable half ring (8); the driven gear (14) is rotatably connected to the inside of the housing (2) via an axis, and the driven gear (14) and the plurality of first tooth blocks are meshingly connected.

7. A high-reliability and long-life seated bearing according to claim 5, characterized in that: One end of the traction rope (16) is wound around the shaft end of the driven gear (14), and the other end of the traction rope (16) is fixed to one side of a sealing plate (27), one side of the sealing plate (27) passes through the interior of the oil discharge pipe (19), and the sealing plate (27) and the oil discharge pipe (19) are in sealed sliding connection.

8. The high-reliability and long-life seated bearing according to claim 1, characterized in that: The front of the shell (2) is provided with slots at equal angles, a dustproof plate (20) is arranged in front of the shell (2), and a card block (21) is fixed at equal intervals on the back of the dustproof plate (20), and a second tooth block is fixed at equal intervals on one side of the card block (21), and a driving gear (24) is connected to one side of the slot inside the shell (2), and a limiting plate (22) is fixedly sleeved on the shaft end of the driving gear (24), and a fixed magnet (25) is installed on the side of the limiting plate (22) away from one end of the driving gear (24) and the front of the dustproof plate (20).

9. A high-reliability and long-life seated bearing according to claim 8, characterized in that: The clamping block (21) is in a clamping connection with the clamping slot, the driving gear (24) is rotatably connected to the inside of the housing (2) via an axis, and the driving gear (24) is meshingly connected to the plurality of second gear blocks, the limiting plate (22) is arranged in an inverted "L" shape, and the front end of the limiting plate (22) extends out of the front side of the housing (2).

10. A high-reliability and long-life seated bearing according to claim 8, characterized in that: The fixed magnet (25) on the limit plate (22) corresponds to the fixed magnet (25) on the dustproof plate (20) in position, and the magnetic poles of the two fixed magnets (25) facing each other are opposite, and a sealing ring (23) is embedded and installed on the back side of the dustproof plate (20).

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