Centering press-in equipment for outer ring of tapered roller bearing

Abstract

The invention belongs to the field of tapered roller bearings, and particularly relates to tapered roller bearing outer ring centering press-in equipment which comprises a fixing table. A placing table is fixedly connected to the middle position of the top end of the fixing table, a base is arranged at the lower end of the fixing table, a press-in equipment body is fixedly connected to the top end of the base, and a clamping protection mechanism is arranged above the fixing table; the clamping protection mechanism comprises fixing plates, and the fixing plates are also arranged on the left side and the right side of the upper portion of the fixing table; through the design of the clamping protection mechanism, the function of preventing the bearing outer ring from being damaged due to the fact that the clamping pressure is too large is achieved, and the problems that when an existing device clamps the bearing outer ring, no assembly for protection is arranged, the bearing outer ring is fragile, and in the clamping process, if the applied pressure is too large, the bearing outer ring cannot be protected are solved. The problem that the bearing outer ring is prone to deformation under large pressure is solved, and protection on the bearing outer ring during clamping is improved.

Description

Technical Field

[0001] The invention relates to the field of tapered roller bearings, in particular to a centering press-in device for the outer ring of a tapered roller bearing. Background Art

[0002] A bearing is a device used to reduce friction and support rotational motion, and is mainly composed of an inner ring, an outer ring, rolling elements, and a cage. Its working principle is to reduce friction by rolling the rolling elements between the inner and outer rings, so that rotating machinery can run in a more efficient and smoother manner. The inside of the bearing is usually filled with an appropriate lubricant (such as grease) to reduce friction and wear, forming a thin lubricating film that enables the rolling elements to roll on the contact surface instead of sliding, thereby reducing energy loss and heat generated by friction.

[0003] The existing device for centering and pressing the outer ring of a tapered roller bearing can be specifically referred to as an auxiliary tapered roller bearing installation device with application number: CN202220295887.1, which includes: a base, a rotating rod, a sliding rod and a hydraulic cylinder. A rotating rod is rotatably installed in the middle of the inner part of the base, sleeves are sleeved on the surfaces of both ends of the rotating rod, and a sliding rod is fixed on the outer surface of the sleeve. The sliding rod slides inside the slide groove, the slide groove is opened in the middle of the inner part of the groove, and the groove is opened in the middle of the outer top surface of the base. A clamp is fixed on the top side of the sliding rod, and a pulley is rotatably installed on the middle side of the sliding rod. The pulley slides inside the slide groove, and top frames are fixed on both sides of the outer top surface of the base, and a hydraulic cylinder is installed through the middle of the top frame. The present invention can clamp and fix the outer rings of tapered roller bearings of different sizes, and then use a lifting and moving extrusion head to squeeze the tapered roller into the inner part of the outer ring, thereby achieving the advantages of improving the applicability and efficiency of assembly;

[0004] The above-mentioned device is not provided with any components for protection when clamping the outer ring of the bearing. Since the outer ring of the bearing is relatively fragile, if the pressure applied during the clamping process is too large, the outer ring of the bearing is very likely to deform under the large pressure. Therefore, a centering and pressing device for the outer ring of a tapered roller bearing is proposed to address the above-mentioned problem. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the existing device does not have a component that can be used to protect the outer ring of the bearing when clamping it. Since the outer ring of the bearing is relatively fragile, if the pressure applied during the clamping process is too large, the outer ring of the bearing is very likely to deform under the large pressure. The present invention proposes a centering and pressing device for the outer ring of a tapered roller bearing.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a centering press-in device for the outer ring of a tapered roller bearing described in the present invention comprises a fixed table; a placing table is fixedly connected to the middle position of the top of the fixed table, a base is arranged at the lower end of the fixed table, a press-in device body is fixedly connected to the top of the base, and a clamping protection mechanism is arranged above the fixed table;

[0007] The clamping protection mechanism includes a fixing plate, which is also arranged on the left and right sides above the fixing platform, and the fixing plate is sleeved on the outside of the first fixing rod, and the fixing plate is slidably connected to the first fixing rod, one side of the first fixing rod is fixedly connected to one side of the elastic clamping plate, and the other side of the elastic clamping plate is fixedly connected to the protection block.

[0008] Preferably, a sleeve plate is fixedly connected to the other side of the first fixed rod, and the upper and lower ends of the sleeve plate are also sleeved on the outside of the first guide rod, and the sleeve plate is slidably connected to the first guide rod, a fixed plate is fixedly connected to one side of the first guide rod, and a limiting block is fixedly connected to the other side of the first guide rod.

[0009] Preferably, the left and right ends of the outer side of the first guide rod are respectively sleeved with a first return spring and a second return spring, one end of the first return spring is fixedly connected to a sleeve plate, the other end of the first return spring is fixedly connected to a limiting block, one end of the second return spring is fixedly connected to the sleeve plate, the other end of the second return spring is fixedly connected to one side of the fixed plate, the front and rear ends of the other side of the fixed plate are also fixedly connected to one end of a fixed sleeve rod, the other end of the fixed sleeve rod is sleeved on one end of the outer side of the first fixed seat, and the fixed sleeve rod is rotatably connected to one end of the first fixed seat, and the other end of the first fixed seat is fixedly connected to an elastic clamp.

[0010] Preferably, a motor is fixedly connected to the left side of the fixed platform, the right side of the motor is fixedly connected to the left side of the threaded rod, the right side of the threaded rod is rotatably connected to the fixed platform, and moving blocks are also sleeved on the left and right ends of the outer side of the threaded rod, and the threaded rod is threadedly connected to the moving block, and the top of the moving block is fixedly connected to the bottom end of the fixed plate.

[0011] Preferably, a buffer protection mechanism is arranged between the fixed platform and the base, and the buffer protection mechanism includes a second fixed seat, which is also fixedly connected to the left and right sides of the bottom end of the fixed platform and the top end of the base, one end of a push rod is sleeved on the outer side of the second fixed seat, and the second fixed seat is rotatably connected to the push rod, the other end of the push rod is sleeved on the outer side of the third fixed seat, and the push rod is rotatably connected to the third fixed seat, and the side end of the third fixed seat is fixedly connected to a movable plate.

[0012] Preferably, the upper and lower ends of the movable plate are also sleeved with a second guide rod, and the movable plate is slidably connected to the second guide rod, the bottom end of the fixed platform and the top end of the base are also fixedly connected to fixed blocks on the left and right sides near the second guide rod, and the two sides of the second guide rod are also fixedly connected to fixed blocks.

[0013] Preferably, a third return spring is sleeved on the outer side of the second guide rod, one end of the third return spring is fixedly connected to the moving plate, and the other end of the third return spring is fixedly connected to the fixed block.

[0014] Preferably, the top of the damper is fixedly connected to the middle position of the bottom end of the fixed platform, the bottom end of the damper is fixedly connected to the base, the outer side of the damper is sleeved with a fourth return spring, the top of the fourth return spring is fixedly connected to the fixed platform, and the bottom end of the fourth return spring is fixedly connected to the base.

[0015] Preferably, the left and right sides of the bottom end of the fixed platform are also fixedly connected to moving rods, a sleeve is provided on the outer side of the moving rod near the lower position, and the moving rod is slidably connected to the sleeve, the bottom end of the moving rod is fixedly connected to the top end of the fifth return spring, and the bottom end of the fifth return spring is fixedly connected to the bottom end of the sleeve.

[0016] Preferably, the sleeve is also provided with slide grooves on the left and right sides, and one end of a slider is also fixedly connected to the left and right sides of the bottom end of the movable rod, the other end of the slider is inserted into the slide groove, and the slider is slidably connected to the slide groove.

[0017] The present invention is beneficial in that:

[0018] 1. The present invention realizes the function of preventing the outer ring of the bearing from being damaged by excessive clamping pressure through the structural design of the clamping protection mechanism, solves the problem that the existing device is not provided with a component for protection when clamping the outer ring of the bearing. Since the outer ring of the bearing is relatively fragile, if the pressure applied during the clamping process is too large, the outer ring of the bearing is very likely to be deformed under a large pressure, thereby improving the protection of the outer ring of the bearing during clamping;

[0019] 2. The present invention realizes the function of buffer protection through the structural design of the buffer protection mechanism, solves the problem that the existing device is not provided with a buffer protection component, and when the pressure generated during pressing is too large, it is very easy to cause damage to the device body and the outer ring of the bearing, thereby improving the protection of the device body and the outer ring of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0023] Figure 3 For the present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0024] Figure 4 For the present invention Figure 1 The enlarged schematic diagram of point B in the middle;

[0025] Figure 5 For the present invention Figure 1 The enlarged schematic diagram at C in the middle;

[0026] Figure 6 For the present invention Figure 1 The enlarged schematic diagram at D in the middle;

[0027] Figure 7 For the present invention Figure 2 The enlarged schematic diagram at E in the middle;

[0028] Figure 8 For the present invention Figure 2 Enlarged schematic diagram at F in the middle.

[0029] In the figure: 1. fixed table; 2. base; 3. placing table; 4. press-in device body; 10. fixed plate; 11. first fixed rod; 12. elastic splint; 13. protection block; 14. first fixed seat; 15. fixed sleeve rod; 16. sleeve plate; 17. first guide rod; 18. limit block; 19. first return spring; 20. second return spring; 21. moving block; 22. motor; 23. threaded rod; 24. second fixed seat; 25. push rod; 26. third fixed seat; 27. moving plate; 28. second guide rod; 29. ​​fixed block; 30. third return spring; 31. damper; 32. fourth return spring; 33. moving rod; 34. sleeve; 35. fifth return spring; 36. slider; 37. slide groove. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 8 As shown, a centering press-in device for the outer ring of a tapered roller bearing comprises a fixed platform 1; a placing platform 3 is welded together at the middle position of the top of the fixed platform 1, a base 2 is arranged at the lower end of the fixed platform 1, a press-in device body 4 is welded together at the top of the base 2, and a clamping protection mechanism is arranged above the fixed platform 1; the clamping protection mechanism comprises a fixed plate 10, the fixed plate 10 is also arranged on the left and right sides above the fixed platform 1, and the fixed plate 10 is sleeved on the outside of a first fixed rod 11, and the fixed plate 10 is slidably connected to the first fixed rod 11, one side of the first fixed rod 11 is welded together with one side of an elastic clamp plate 12, and the other side of the elastic clamp plate 12 is welded and bonded together with a protective block 13, and the first fixed rod 11 is circular Rod design, the protection block 13 is designed with rubber material; through the structural design of the clamping protection mechanism, the function of preventing the clamping pressure from being too large and causing damage to the outer ring of the bearing is achieved, which solves the problem that the existing device is not provided with a component that can be used for protection when clamping the outer ring of the bearing. Since the outer ring of the bearing is relatively fragile, during the clamping process, if the pressure applied is too large, it is very easy for the outer ring of the bearing to deform under a large pressure. When working, the moving blocks 21 on the left and right sides move to the middle position at the same time until the protection block 13 contacts the outer ring of the bearing and continues to move. When continuing to move, it drives the fixed plate 10 to move along the outside of the first fixed rod 11.

[0032] Furthermore, a sleeve plate 16 is welded together on the other side of the first fixed rod 11, and the upper and lower ends of the sleeve plate 16 are also sleeved on the outside of the first guide rod 17, and the sleeve plate 16 is slidably connected to the first guide rod 17. A fixed plate 10 is welded together on one side of the first guide rod 17, and a limit block 18 is welded together on the other side of the first guide rod 17. The first guide rod 17 is designed as a round rod; when working, the fixed plate 10 moves along the outside of the first fixed rod 11, and when the fixed plate 10 moves, it drives the sleeve plate 16 to move along the outside of the first guide rod 17, and the limit block 18 is used to prevent the sleeve plate 16 from detaching from the outside of the first guide rod 17.

[0033] Furthermore, the left and right ends of the outer side of the first guide rod 17 are respectively sleeved with a first return spring 19 and a second return spring 20, one end of the first return spring 19 is welded with a sleeve plate 16, the other end of the first return spring 19 is welded with a limit block 18, one end of the second return spring 20 is welded with a sleeve plate 16, the other end of the second return spring 20 is welded with one side of the fixed plate 10, the front and rear ends of the other side of the fixed plate 10 are also welded with one end of a fixed sleeve rod 15, the other end of the fixed sleeve rod 15 is sleeved on the outer end of the first fixed seat 14, and the fixed sleeve rod 15 is rotatably connected with one end of the first fixed seat 14, and the other end of the first fixed seat 14 is welded There is an elastic splint 12 connected together, and the inner wall of the fixed sleeve rod 15 is circular in design; when working, the fixed plate 10 moves, driving the sleeve plate 16 to move along the outside of the first guide rod 17, and the limit block 18 is used to prevent the sleeve plate 16 from detaching from the outside of the first guide rod 17, and the first return spring 19 will be compressed during the movement, and the second return spring 20 will be stretched. At the same time, the moving block 21 continues to move, driving the fixed sleeve rod 15 to move at the same time, and the elastic splint 12 will deform along the outer ring of the bearing until the protection block 13 completely wraps the outer ring of the bearing, and at the same time drives the front end of the fixed sleeve rod 15 to rotate along the outside of the first fixed seat 14.

[0034] Furthermore, a motor 22 is welded to the left side of the fixed platform 1, and a left side end of a threaded rod 23 is welded to the right side end of the motor 22. The right side end of the threaded rod 23 is rotatably connected to the fixed platform 1. The left and right ends of the outer side of the threaded rod 23 are also sleeved with moving blocks 21, and the threaded rod 23 is threadedly connected to the moving block 21, and the top of the moving block 21 is welded to the bottom end of the fixed plate 10. When working, the outer ring of the bearing is placed on the top of the placement platform 3, and then the motor 22 at the left side end of the fixed platform 1 is started. The motor 22 drives the threaded rod 23 to rotate. When the threaded rod 23 rotates, it drives the moving blocks 21 on the left and right sides to move to the middle position at the same time.

[0035] Furthermore, a buffer protection mechanism is provided between the fixed platform 1 and the base 2, and the buffer protection mechanism includes a second fixed seat 24, which is also welded together on the left and right sides of the bottom end of the fixed platform 1 and the top end of the base 2. One end of a push rod 25 is sleeved on the outside of the second fixed seat 24, and the second fixed seat 24 is rotatably connected to the push rod 25, and the other end of the push rod 25 is sleeved on the outside of the third fixed seat 26, and the push rod 25 is rotatably connected to the third fixed seat 26, and the side end of the third fixed seat 26 is welded with a movable plate 27, and the inner wall of the push rod 25 is circular in design; during operation, if the pressure of the press is too large, it will drive the fixed platform 1 to move downward, and when the fixed platform 1 moves downward, it will drive one end of the push rod 25 to rotate along the outside of the second fixed seat 24, and at the same time, the other end of the push rod 25 rotates along the outside of the third fixed seat 26, and squeezes the movable plate 27 to move to the side end.

[0036] Furthermore, the second guide rods 28 are also sleeved on the upper and lower ends of the movable plate 27, and the movable plate 27 is slidably connected to the second guide rods 28. The bottom end of the fixed platform 1 and the top end of the base 2 are also welded together with fixed blocks 29 on the left and right sides near the second guide rods 28. The two sides of the second guide rods 28 are also welded together with fixed blocks 29. The second guide rods 28 are designed as round rods. When working, when the movable plate 27 moves, it will move along the outer side of the second guide rod 28 on the inner side of the fixed block 29.

[0037] Furthermore, a third return spring 30 is sleeved on the outer side of the second guide rod 28, one end of the third return spring 30 is welded with a movable plate 27, and the other end of the third return spring 30 is welded with a fixed block 29; during operation, the movable plate 27 will squeeze the third return spring 30 to perform contraction buffering during movement.

[0038] Furthermore, the top of the damper 31 is welded together at the middle position of the bottom end of the fixed platform 1, the bottom end of the damper 31 is welded together with the base 2, a fourth return spring 32 is sleeved on the outer side of the damper 31, the top of the fourth return spring 32 is welded together with the fixed platform 1, and the bottom end of the fourth return spring 32 is welded together with the base 2; when working, the fixed platform 1 moves downward, driving the damper 31 and the fourth return spring 32 to shrink and buffer at the same time.

[0039] Furthermore, moving rods 33 are also welded together on the left and right sides of the bottom end of the fixed platform 1. A sleeve 34 is sleeved on the outer side of the moving rod 33 near the lower position, and the moving rod 33 is slidably connected to the sleeve 34. The top of the fifth return spring 35 is welded together at the bottom end of the moving rod 33, and the bottom end of the fifth return spring 35 is welded together with the bottom end of the sleeve 34. The fifth return spring 35 is designed as a round rod; when working, the fixed platform 1 moves downward, driving the moving rods 33 on the left and right sides of the bottom end of the fixed platform 1 to move downward along the inside of the sleeve 34 at the same time, and the fifth return spring 35 will be squeezed to perform contraction buffering during the movement of the moving rod 33.

[0040] Furthermore, the left and right sides of the sleeve 34 are also provided with slide grooves 37, and the left and right sides of the bottom end of the moving rod 33 are also welded together with one end of a slider 36, and the other end of the slider 36 is inserted into the slide groove 37, and the slider 36 is slidably connected to the slide groove 37, and the slide groove 37 is square in design; when working, the moving rod 33 moves downward, driving the slider 36 to move along the inside of the slide groove 37.

[0041] Working principle: when it is necessary to fix the outer ring of the bearing, first place the outer ring of the bearing on the top of the placing table 3, and then start the motor 22 at the left end of the fixed table 1, and the motor 22 drives the threaded rod 23 to rotate. When the threaded rod 23 rotates, it drives the moving blocks 21 on the left and right sides to move to the middle position at the same time until the protection block 13 contacts the outer ring of the bearing and continues to move. When continuing to move, it drives the fixed plate 10 to move along the outside of the first fixed rod 11. At the same time, when the fixed plate 10 moves, it drives the sleeve plate 16 to move along the outside of the first guide rod 17, and the limit block 18 is used to prevent the sleeve plate 16 from separating from the outside of the first guide rod 17. In the process of moving, the first return spring 19 will be compressed and the second return spring 20 will be stretched. At the same time, while the moving block 21 continues to move, it drives the fixed sleeve rod 15 to move at the same time, and the elastic clamping plate 12 will deform along the outer ring of the bearing until the protection block 13 completely wraps the outer ring of the bearing, and at the same time drives the front end of the fixed sleeve rod 15 to rotate along the outside of the first fixed seat 14.

[0042] When pressing in, if the pressing pressure is too great, the fixed platform 1 will be driven to move downward. When the fixed platform 1 moves downward, one end of the push rod 25 will be driven to rotate along the outer side of the second fixed seat 24. At the same time, the other end of the push rod 25 will rotate along the outer side of the third fixed seat 26 and squeeze the movable plate 27 to move to the side. When the movable plate 27 moves, it will move along the outer side of the second guide rod 28 inside the fixed block 29, and the third return spring 30 will be squeezed to shrink and buffer during the movement of the movable plate 27. At the same time, when the fixed platform 1 moves downward, the damper 31 and the fourth return spring 32 will be driven to shrink and buffer at the same time, and the fixed platform 1 moves downward, driving the movable rods 33 on the left and right sides of the bottom end of the fixed platform 1 to move downward along the inside of the sleeve 34 at the same time, and the fifth return spring 35 will be squeezed to shrink and buffer during the movement of the movable rod 33, and the slider 36 will be driven to move along the inside of the slide groove 37.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A centering press-fit device for the outer ring of a tapered roller bearing, comprising a fixing table (1); characterized in that: A placing platform (3) is fixedly connected at the middle position of the top of the fixed platform (1), a base (2) is arranged at the lower end of the fixed platform (1), a pressing device body (4) is fixedly connected at the top of the base (2), and a clamping protection mechanism is arranged above the fixed platform (1); The clamping protection mechanism comprises a fixing plate (10), wherein the fixing plate (10) is provided with two groups, and the two groups of fixing plates (10) are both provided on the left and right sides above the fixing platform (1), the fixing plate (10) is slidably connected to a first fixing rod (11), one side of the first fixing rod (11) is fixedly connected to an elastic clamping plate (12), the elastic clamping plate (12) is fixedly connected to a protection block (13), the first fixing rod (11) is fixedly connected to a sleeve plate (16), the sleeve plate (16) is slidably connected to a first guide rod (17), one side of the first guide rod (17) is fixedly connected to the fixing plate (10), and the first guide rod (17) is fixedly connected to a limiting block (18).

2. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 1, characterized in that: A first return spring (19) is sleeved on the left end of the outer side of the first guide rod (17), and a second return spring (20) is sleeved on the right end of the outer side of the first guide rod (17).

3. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 2, characterized in that: The two ends of the first return spring (19) are respectively fixedly connected to the sleeve plate (16) and the limit block (18), the two ends of the second return spring (20) are respectively fixedly connected to the sleeve plate (16) and one side of the fixed plate (10), the front and rear ends of the other side of the fixed plate (10) are both fixedly connected to a fixed sleeve rod (15), the fixed sleeve rod (15) is rotatably connected to a first fixed seat (14), and the first fixed seat (14) is fixedly connected to the elastic clamping plate (12).

4. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 3, characterized in that: A motor (22) is fixedly connected to the left side of the fixed platform (1), a threaded rod (23) is fixedly connected to the right side of the motor (22), the right side of the threaded rod (23) is rotatably connected to the fixed platform (1), and both left and right ends of the outer side of the threaded rod (23) are threadedly connected to a moving block (21), and the top end of the moving block (21) is fixedly connected to the bottom end of the fixed plate (10).

5. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 4, characterized in that: A buffer protection mechanism is provided between the fixed platform (1) and the base (2), and the buffer protection mechanism comprises a second fixed seat (24), the second fixed seat (24) is fixedly connected to the bottom end of the fixed platform (1) and the left and right sides of the top end of the base (2), one end of a push rod (25) is sleeved on the outer side of the second fixed seat (24), and the second fixed seat (24) is rotatably connected to the push rod (25), the push rod (25) is rotatably connected to a third fixed seat (26), and the side end of the third fixed seat (26) is fixedly connected to a movable plate (27).

6. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 5, characterized in that: The upper and lower ends of the movable plate (27) are sleeved with second guide rods (28), and the movable plate (27) is slidably connected to the second guide rods (28). The bottom end of the fixed platform (1) and the top end of the base (2) are fixedly connected to the left and right sides of the second guide rods (28), and both sides of the second guide rods (28) are fixedly connected to the fixed blocks (29).

7. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 6, characterized in that: A third return spring (30) is sleeved on the outer side of the second guide rod (28), one end of the third return spring (30) is fixedly connected to the movable plate (27), and the other end of the third return spring (30) is fixedly connected to the fixed block (29).

8. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 7, characterized in that: A damper (31) is fixedly connected at the middle position of the bottom end of the fixed platform (1), the bottom end of the damper (31) is fixedly connected to the base (2), a fourth return spring (32) is sleeved on the outer side of the damper (31), the top end of the fourth return spring (32) is fixedly connected to the fixed platform (1), and the bottom end of the fourth return spring (32) is fixedly connected to the base (2).

9. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 8, characterized in that: The left and right sides of the bottom end of the fixed platform (1) are both fixedly connected with a moving rod (33); a sleeve (34) is sleeved on the outer side of the moving rod (33) near the lower position, and the moving rod (33) and the sleeve (34) are slidably connected; a fifth return spring (35) is fixedly connected to the bottom end of the moving rod (33); and the bottom end of the fifth return spring (35) is fixedly connected to the bottom end inside the sleeve (34).

10. The device for centering and pressing the outer ring of a tapered roller bearing according to claim 9, characterized in that: The left and right sides of the sleeve (34) are also provided with sliding grooves (37), and the left and right sides of the bottom end of the moving rod (33) are fixedly connected with sliding blocks (36), and the sliding blocks (36) are inserted into the sliding grooves (37), and the sliding blocks (36) are slidably connected with the sliding grooves (37).

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