Sliding bearing seat

Abstract

The invention relates to the technical field of bearing pedestals, and discloses a sliding bearing pedestal which comprises a lower outer ring, an upper outer ring, a lower bearing bush and an upper bearing bush, a cooling pipe is arranged in a containing groove, the outer surface of a turbulent flow shaft is fixedly sleeved with a plurality of turbulent flow blades, and the end, located in a turbulent flow box, of a movable rod is fixedly connected with a rack. The outer surface of the transmission shaft is fixedly sleeved with a transmission gear, one side of the connecting plate is fixedly connected with a triangular block, and the outer surface of the upper bearing bush is fixedly connected with a shifting rod. When the upper bearing bush rotates, a shifting rod is driven to be matched with a triangular block, extrude a connecting plate and enable a rack to move, and is matched with a transmission gear, a driving bevel gear and a driven bevel gear, so that a turbulent flow shaft drives turbulent flow blades to rotate to turbulent flow cooling water in the cooling pipe, and the heat exchange speed between the cooling water in the cooling pipe is increased; the cooling water is fully subjected to heat exchange with heat generated when the bearing seat works, so that the heat exchange efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of bearing seats, in particular to a sliding bearing seat. Background Art

[0002] Sliding bearings are bearings that work under sliding friction. They work smoothly, reliably and without noise. Sliding bearings are generally used under low-speed and heavy-load conditions, or in operating parts that are difficult to maintain and lubricate.

[0003] The existing patent (publication number: CN219570649U) discloses a sliding bearing seat, including a seat body, the bottom of the seat body is symmetrically provided with mounting holes near the end surface, which is convenient for fixing the position with mounting bolts, the top of the seat body is bolted with a bearing cover for mounting and fixing the internal bearing, the opposite arc walls of the seat body and the bearing cover are fixedly connected with a bearing bush, the top of the bearing cover is fixedly connected with an oil nozzle for injecting lubricating oil into the inside of the bearing seat, and the top of the seat body is symmetrically connected with a shock-absorbing pad near the side wall. The utility model is provided with a shock-absorbing pad at the bottom mounting position of the bearing seat, so that when it is installed and used, it can reduce vibration and improve its stability in use. At the same time, a water cooling structure is provided inside the bearing seat to cool and dissipate heat during long-term operation, reduce the high temperature generated by the bearing seat, and improve its service life.

[0004] When the above patented technology is in use, the bearing seat is cooled and dissipated through a water cooling structure to reduce the high temperature generated by the bearing seat. It only transports water for heat exchange by setting a cooling pipe. Since the flow direction of the water is certain, the water temperature at the water outlet inside the cooling pipe is higher than the water temperature at the water inlet, which leads to poor cooling effect on the bearing seat. Therefore, a sliding bearing seat is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a sliding bearing seat to solve the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sliding bearing seat, comprising a lower outer ring, an upper outer ring, a lower bearing shell and an upper bearing shell, the inner walls of the lower outer ring and the upper outer ring are both provided with a receiving groove, a cooling pipe is arranged inside the receiving groove, the outer surface of the cooling pipe is fixedly connected to a plurality of spoiler boxes, the interior of the spoiler box is rotatably connected to a spoiler shaft, the outer surface of the spoiler shaft is fixedly sleeved with a plurality of spoiler blades, a movable rod is movably inserted into the outer surface of one side of the spoiler box, one end of the movable rod located inside the spoiler box is fixedly connected to a rack, the inner wall of one side of the spoiler box is rotatably connected to a transmission shaft, the outer surface of the transmission shaft is fixedly sleeved with a transmission gear, the transmission gear is movably meshed with the outer surface of the rack, the other end of the movable rod is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a triangular block, and the outer surface of the upper bearing shell is fixedly connected to a shift rod.

[0007] As a further explanation of the present invention, an oil filling pipe passes through the top outer surface of the upper outer ring, the top outer surface of the oil filling pipe is fixedly connected to a connecting cylinder, the top outer surface of the connecting cylinder is fixedly connected to an oil pipe, the outer surface of the oil pipe is threadedly connected to a sealing cover, the inside of the oil filling pipe is movably connected to a blocking block, the inside of the connecting cylinder is fixedly connected to a connecting plate, the top outer surface of the connecting plate is fixedly connected to a spring, and the top outer surface of the spring is fixedly connected to the blocking block.

[0008] As a further explanation of the present invention, the left and right outer surfaces of the upper outer ring and the lower outer ring are fixedly connected with side plates, the outer surfaces of the side plates are provided with connecting waist holes, the interior of the connecting waist holes is provided with connecting screws, and the outer surfaces of the connecting screws are threadedly connected with nuts.

[0009] As a further explanation of the present invention, the bottom outer surface of the lower outer ring is fixedly connected to a base, and the outer surfaces at both ends of the base are provided with mounting waist holes.

[0010] As a further explanation of the present invention, the outer surfaces of the upper outer ring and the lower outer ring are both provided with a plurality of adjustment grooves arranged in a circumferential array, and the connecting plates penetrate the adjustment grooves and extend to the outside of the upper outer ring and the lower outer ring.

[0011] As a further explanation of the present invention, the outer surface of the upper outer ring is provided with two through holes, the outer surface of the cooling pipe is connected with two water hoses, and the two water hoses pass through the two through holes respectively.

[0012] As a further explanation of the present invention, the outer surface fixed sleeve of the transmission shaft is provided with a driving bevel gear, the outer surface fixed sleeve of the spoiler shaft is provided with a driven bevel gear, and the driving bevel gear is movably meshed with the outer surface of the driven bevel gear.

[0013] As a further illustration of the present invention, a fixing plate is fixedly connected to the interior of the spoiler box, a coil spring is wound around the outer surface of the transmission shaft, and the other end of the coil spring is fixedly connected to the fixing plate.

[0014] As a further illustration of the present invention, a plurality of through grooves are provided on the outer surface of the connecting plate.

[0015] As a further explanation of the present invention, the blocking block is in the shape of a truncated cone which is thin at the top and thick at the bottom. A sealing gasket is fixedly connected to the outer surface of the blocking block, and a sealing ring is provided at the connection between the movable rod and the spoiler box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In a sliding bearing seat provided by the present invention, when the upper bearing shell rotates, the lever is driven to rotate. When the lever contacts the triangular block, the connecting plate is squeezed, and the movable rod drives the rack to move. In cooperation with the transmission gear, the active bevel gear and the driven bevel gear, the spoiler shaft drives the spoiler blade to rotate, and the cooling water in the cooling pipe is disturbed, so that the heat exchange speed between the cooling water in the cooling pipe is accelerated, so that the cooling water can fully exchange heat with the heat generated by the bearing seat when it is working, which greatly improves the efficiency of heat exchange.

[0017] 2. In a sliding bearing seat provided by the present invention, force is applied to the block so that the lubricating oil enters the connecting tube from the gap between the block and the oil filling pipe, and drips onto the surfaces of the lower bearing shell and the upper bearing shell through the oil delivery pipe to perform lubrication work. The oil filling pipe is blocked in cooperation with the spring and the block, so that when the sealing cover is lost, the sealing performance of the oil filling pipe can be increased to prevent dust and impurities from entering the interior of the oil filling pipe.

[0018] 3. In a sliding bearing seat provided by the present invention, the tightness between the lower bearing shell and the upper bearing shell is adjusted by adjusting the position of the nut on the connecting screw, and the adjustment groove, through hole and buckle are used to facilitate the assembly of the lower outer ring, the upper outer ring, the lower bearing shell, the upper bearing shell and the cooling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the present invention; Figure 3 It is a front view cross-sectional structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the cooling pipe and its related structures of the present invention; Figure 5 It is a schematic diagram of the internal structure of the spoiler box of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 1 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the connecting plate and its related structures of the present invention; Fig. 9 For the present invention Figure 3 Enlarged structural diagram at point C in the middle.

[0020] In the figure: 1. lower outer ring; 2. upper outer ring; 3. lower bearing; 4. upper bearing; 5. cooling pipe; 6. spoiler box; 7. spoiler shaft; 8. spoiler blade; 9. transmission shaft; 10. connecting plate; 11. triangular block; 12. transmission gear; 13. rack; 14. active bevel gear; 15. driven bevel gear; 16. oil pipeline; 17. connecting tube; 18. oil filling pipe; 19. blocking block; 20. spring; 21. side plate; 22. connecting waist hole; 23. base; 24. mounting waist hole; 25. adjustment slot; 26. water hose; 27. lever. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1: Please refer to Figure 1-Figure 8The present invention provides a technical solution: a sliding bearing seat, comprising a lower outer ring 1, an upper outer ring 2, a lower bearing shell 3 and an upper bearing shell 4, the inner walls of the lower outer ring 1 and the upper outer ring 2 are both provided with a receiving groove, a cooling pipe 5 is arranged inside the receiving groove, the outer surface of the cooling pipe 5 is fixedly connected with a plurality of spoiler boxes 6, the inside of the spoiler box 6 is rotatably connected with a spoiler shaft 7, the outer surface of the spoiler shaft 7 is fixedly sleeved with a plurality of spoiler blades 8, a movable rod is movably inserted into the outer surface of one side of the spoiler box 6, one end of the movable rod located inside the spoiler box 6 is fixedly connected with a rack 13, the inner wall of one side of the spoiler box 6 is rotatably connected with a transmission shaft 9, the outer surface of the transmission shaft 9 is fixedly sleeved with a plurality of spoiler blades 8 Transmission gear 12, the transmission gear 12 is movably engaged with the outer surface of the rack 13, the other end of the movable rod is fixedly connected with the connecting plate 10, one side of the connecting plate 10 is fixedly connected with the triangular block 11, and the outer surface of the upper bearing 4 is fixedly connected with the lever 27. Specifically, when the upper bearing 4 rotates, the lever 27 thereon is driven to rotate. When the lever 27 rotates to a position in contact with the triangular block 11, the lever 27 squeezes the triangular block 11, and the triangular block 11 drives the connecting plate 10 to move upward, and the connecting plate 10 drives the movable rod to move the rack 13 upward, and the rack 13 is engaged with the transmission gear 12, and when the rack 13 moves, it drives the transmission gear 12 to rotate.

[0023] In this embodiment, the bottom outer surface of the lower outer ring 1 is fixedly connected to a base 23, and both ends of the outer surface of the base 23 are provided with mounting holes 24. Specifically, the base 23 is installed in a suitable position by screwing mounting bolts into the mounting holes 24.

[0024] In this embodiment, a driving bevel gear 14 is fixedly sleeved on the outer surface of the transmission shaft 9, and a driven bevel gear 15 is fixedly sleeved on the outer surface of the spoiler shaft 7. The driving bevel gear 14 is movably engaged with the outer surfaces of the driven bevel gear 15. Specifically, when the transmission shaft 9 rotates, the driving bevel gear 14 is driven to rotate, and the driving bevel gear 14 is driven to rotate, thereby causing the spoiler shaft 7 to rotate.

[0025] In this embodiment, a fixing plate is fixedly connected to the interior of the spoiler box 6, and a coil spring is wound around the outer surface of the transmission shaft 9. The other end of the coil spring is fixedly connected to the fixing plate. Specifically, when the transmission shaft 9 rotates, the coil spring is wound, and when the rack 13 stops being subjected to force, the coil spring drives the transmission shaft 9 to reset.

[0026] In this embodiment, a sealing ring is provided at the connection between the movable rod and the spoiler box 6 . Specifically, the sealing ring is used to increase the sealing performance between the movable rod and the spoiler box 6 .

[0027] In the specific implementation process, when the bearing seat is working, cooling water is transported to the cooling pipe 5, and heat is exchanged with the heat generated by the water flow in the cooling pipe 5 when the bearing seat is working. When the bearing seat is working, the lower bearing shell 3 and the upper bearing shell 4 rotate, and the upper bearing shell 4 rotates and drives the lever 27 thereon to rotate. When the lever 27 rotates to a position in contact with the triangular block 11, the lever 27 squeezes the triangular block 11, and the triangular block 11 drives the connecting plate 10 to move upward, and the connecting plate 10 drives the movable rod to move the rack 13 upward, and the rack 13 moves upward. The rack 13 is meshed with the transmission gear 12. When the rack 13 moves, it drives the transmission gear 12 to rotate, and the transmission gear 12 drives the transmission shaft 9 to rotate, so that the driven bevel gear 15 on the transmission shaft 9 rotates, and the rotation of the driven bevel gear 15 drives the spoiler shaft 7 to rotate, and the spoiler shaft 7 drives the spoiler blades 8 to rotate, so as to disturb the cooling water in the cooling pipe 5, so that the heat exchange speed between the cooling water inside the cooling pipe 5 is accelerated, so that the cooling water can fully exchange heat with the heat generated by the bearing seat when working, which greatly improves the efficiency of heat exchange.

[0028] Embodiment 2: Please refer to Figure 3 and Fig. 9 The present invention provides a technical solution: an oil filling pipe 18 passes through the top outer surface of the upper outer ring 2, the top outer surface of the oil filling pipe 18 is fixedly connected to a connecting cylinder 17, the top outer surface of the connecting cylinder 17 is fixedly connected to an oil delivery pipe 16, the outer surface of the oil delivery pipe 16 is threadedly connected to a sealing cover, the inside of the oil filling pipe 18 is movably connected to a blocking block 19, the inside of the connecting cylinder 17 is fixedly connected to a connecting disk, the top outer surface of the connecting plate 10 is fixedly connected to a spring 20, and the top outer surface of the spring 20 is fixedly connected to the blocking block 19.

[0029] In this embodiment, a plurality of through grooves are formed on the outer surface of the connecting plate. Specifically, the lubricating oil passes through the connecting plate through the through grooves and enters the oil delivery pipe 16 .

[0030] In this embodiment, the blocking block 19 is in the shape of a truncated cone which is thin at the top and thick at the bottom, and a sealing gasket is fixedly connected to the outer surface of the blocking block 19. Specifically, the truncated cone-shaped blocking block 19 which is thin at the top and thick at the bottom facilitates the blocking block 19 to seal the oil filling pipe 18, and the sealing gasket increases the sealing performance between the blocking block 19 and the oil filling pipe 18.

[0031] During the specific implementation process, when it is necessary to inject lubricating oil, the sealing cap on the outside of the oil filling pipe 18 is unscrewed, and a force is applied from top to bottom to the block 19 to inject the lubricating oil into the inside of the oil filling pipe 18 and enter the connecting tube 17 through the gap between the block 19 and the oil filling pipe 18. The lubricating oil drips onto the surface of the lower bearing 3 and the upper bearing 4 through the oil delivery pipe 16 to increase the lubricity of the bearing seat during use. When the injection is completed, stop applying force to the block 19 so that the spring 20 drives the block 19 to reset and the oil filling pipe 18 is blocked. This can increase the sealing of the oil filling pipe 18 when the sealing cap is lost and prevent dust and impurities from entering the inside of the oil filling pipe 18.

[0032] Embodiment 3: Please refer to Figure 1-Figure 7 The present invention provides a technical solution: the left and right outer surfaces of the upper outer ring 2 and the lower outer ring 1 are fixedly connected with side plates 21, the outer surface of the side plate 21 is provided with a connecting waist hole 22, the interior of the connecting waist hole 22 is provided with a connecting screw, and the outer surface of the connecting screw is threadedly connected with a nut. Specifically, the two side plates 21 are connected by connecting bolts. When it is necessary to adjust the tightness of the connection between the upper bearing shell 4 and the lower bearing shell 3, the position of the nut on the connecting bolt is tightened to make the two side plates 21 fit closely, thereby increasing the tightness between the upper bearing shell 4 and the lower bearing shell 3.

[0033] In this embodiment, the outer surfaces of the upper outer ring 2 and the lower outer ring 1 are provided with a plurality of adjustment grooves 25 arranged in a circular array, and the connecting plate 10 passes through the adjustment grooves 25 and extends to the outside of the upper outer ring 2 and the lower outer ring 1. Specifically, the adjustment grooves 25 provide space for the movement of the connecting plate 10, and the connecting plate 10 slides inside the adjustment grooves 25 when moving.

[0034] In this embodiment, two through holes are formed on the outer surface of the upper outer ring 2, and the outer surface of the cooling pipe 5 is connected to two water hoses 26. The two water hoses 26 pass through the two through holes respectively. Specifically, cooling water is transported to the inside of the cooling pipe 5 through the water hoses 26, and space is provided for the water hoses 26 through the through holes.

[0035] During the specific implementation process, when it is necessary to adjust the tightness of the connection between the upper bearing shell 4 and the lower bearing shell 3, the two side plates 21 are tightly fitted by tightening the position of the nut on the connecting bolt, thereby increasing the tightness between the upper bearing shell 4 and the lower bearing shell 3, and the lower outer ring 1 and the upper outer ring 2 are disassembled by removing the connecting bolts and nuts, and the upper bearing shell 4 and the lower bearing shell 3 are disassembled for inspection. During assembly, the cooling pipe 5 is first clamped on the buckle on the inner wall of the lower outer ring 1, and the upper outer ring 2 is aligned with the lower outer ring 1, so that the connecting plate 10 passes through the adjustment groove 25, and the water supply hose 26 passes through the through hole, and then the two side plates 21 are connected by the connecting bolts to complete the assembly.

[0036] Working principle: When the present invention is in use, when the bearing seat is working, cooling water is transported to the cooling pipe 5, and heat is exchanged between the water flow inside the cooling pipe 5 and the heat generated when the bearing seat is working. When the bearing seat is working, the lower bearing shell 3 and the upper bearing shell 4 rotate, and the upper bearing shell 4 rotates to drive the lever 27 thereon to rotate. When the lever 27 rotates to a position in contact with the triangular block 11, the lever 27 squeezes the triangular block 11, and the triangular block 11 drives the connecting plate 10 to move upward, and the connecting plate 10 drives the movable rod to move the rack 13 upward. The rack 13 is meshed with the transmission gear 12. When the rack 13 moves, it drives the transmission gear 12 to rotate. The transmission gear 12 drives the transmission shaft 9 to rotate, so that the driven bevel gear 15 on the transmission shaft 9 rotates. The rotation of the driven bevel gear 15 drives the spoiler shaft 7 to rotate. The spoiler shaft 7 drives the spoiler blades 8 to rotate, and the cooling water in the cooling pipe 5 is disturbed, so that the heat exchange speed between the cooling water inside the cooling pipe 5 is accelerated, so that the cooling water can fully exchange heat with the heat generated by the bearing seat when working, which greatly improves the efficiency of heat exchange.

[0037] When it is necessary to inject lubricating oil, unscrew the sealing cap on the outside of the oil filling pipe 18, apply force from top to bottom to the block 19, inject the lubricating oil into the inside of the oil filling pipe 18, and enter the connecting tube 17 through the gap between the block 19 and the oil filling pipe 18. The lubricating oil drips onto the surface of the lower bearing shell 3 and the upper bearing shell 4 through the oil delivery pipe 16, thereby increasing the lubricity of the bearing seat during use. When the injection is completed, stop applying force to the block 19, so that the spring 20 drives the block 19 to reset and block the oil filling pipe 18. This can increase the sealing of the oil filling pipe 18 when the sealing cap is lost, and prevent dust and impurities from entering the inside of the oil filling pipe 18.

[0038] When it is necessary to adjust the tightness of the connection between the upper bearing shell 4 and the lower bearing shell 3, the two side plates 21 are tightly fitted by tightening the position of the nut on the connecting bolt, thereby increasing the tightness between the upper bearing shell 4 and the lower bearing shell 3, and the lower outer ring 1 and the upper outer ring 2 are disassembled by removing the connecting bolts and nuts, and the upper bearing shell 4 and the lower bearing shell 3 are disassembled for inspection. During assembly, the cooling pipe 5 is first clamped on the buckle on the inner wall of the lower outer ring 1, and the upper outer ring 2 is aligned with the lower outer ring 1, so that the connecting plate 10 passes through the adjustment groove 25, and the water supply hose 26 passes through the through hole, and then the two side plates 21 are connected by the connecting bolts to complete the assembly.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sliding bearing seat, comprising a lower outer ring (1), an upper outer ring (2), a lower bearing bush (3) and an upper bearing bush (4), characterized in that: The inner walls of the lower outer ring (1) and the upper outer ring (2) are both provided with a receiving groove, a cooling pipe (5) is arranged inside the receiving groove, the outer surface of the cooling pipe (5) is fixedly connected to a plurality of spoiler boxes (6), the inside of the spoiler box (6) is rotatably connected to a spoiler shaft (7), the outer surface of the spoiler shaft (7) is fixedly sleeved with a plurality of spoiler blades (8), a movable rod is movably inserted into the outer surface of one side of the spoiler box (6), one end of the movable rod located inside the spoiler box (6) is fixedly connected to a rack (13), the inner wall of one side of the spoiler box (6) is rotatably connected to a transmission shaft (9), the outer surface of the transmission shaft (9) is fixedly sleeved with a transmission gear (12), the transmission gear (12) is movably meshed with the outer surface of the rack (13), the other end of the movable rod is fixedly connected to a connecting plate (10), one side of the connecting plate (10) is fixedly connected to a triangular block (11), and the outer surface of the upper bearing (4) is fixedly connected to a shifting rod (27).

2. A sliding bearing seat according to claim 1, characterized in that: An oil filling pipe (18) passes through the top outer surface of the upper outer ring (2), the top outer surface of the oil filling pipe (18) is fixedly connected to a connecting cylinder (17), the top outer surface of the connecting cylinder (17) is fixedly connected to an oil delivery pipe (16), the outer surface of the oil delivery pipe (16) is threadedly connected to a sealing cover, the inside of the oil filling pipe (18) is movably connected to a block (19), the inside of the connecting cylinder (17) is fixedly connected to a connecting plate, the top outer surface of the connecting plate (10) is fixedly connected to a spring (20), and the top outer surface of the spring (20) is fixedly connected to the block (19).

3. A sliding bearing seat according to claim 1, characterized in that: The left and right outer surfaces of the upper outer ring (2) and the lower outer ring (1) are fixedly connected to side plates (21), the outer surfaces of the side plates (21) are provided with connecting waist holes (22), the interiors of the connecting waist holes (22) are provided with connecting screws, and the outer surfaces of the connecting screws are threadedly connected to nuts.

4. A sliding bearing seat according to claim 1, characterized in that: The bottom outer surface of the lower outer ring (1) is fixedly connected to a base (23), and the outer surfaces at both ends of the base (23) are provided with mounting waist holes (24).

5. The sliding bearing seat according to claim 1, characterized in that: The outer surfaces of the upper outer ring (2) and the lower outer ring (1) are each provided with a plurality of adjustment grooves (25) arranged in a circumferential array, and the connecting plate (10) penetrates the adjustment grooves (25) and extends to the outside of the upper outer ring (2) and the lower outer ring (1).

6. The sliding bearing seat according to claim 1, characterized in that: The outer surface of the upper outer ring (2) is provided with two through holes, and the outer surface of the cooling pipe (5) is connected to two water supply hoses (26), and the two water supply hoses (26) respectively pass through the two through holes.

7. The sliding bearing seat according to claim 1, characterized in that: The outer surface fixed sleeve of the transmission shaft (9) is provided with a driving bevel gear (14), and the outer surface fixed sleeve of the spoiler shaft (7) is provided with a driven bevel gear (15), and the driving bevel gear (14) is movably meshed with the outer surface of the driven bevel gear (15).

8. The sliding bearing seat according to claim 1, characterized in that: A fixing plate is fixedly connected to the interior of the spoiler box (6), a coil spring is wound around the outer surface of the transmission shaft (9), and the other end of the coil spring is fixedly connected to the fixing plate.

9. A sliding bearing seat according to claim 2, characterized in that: The outer surface of the connecting plate is provided with a plurality of through grooves.

10. The sliding bearing seat according to claim 2, characterized in that: The blocking block (19) is in the shape of a truncated cone that is thin at the top and thick at the bottom. A sealing pad is fixedly connected to the outer surface of the blocking block (19), and a sealing ring is provided at the connection between the movable rod and the spoiler box (6).

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