Full-suspension locomotive driving bearing press-fitting device

Abstract

This invention provides a press-fitting device for a fully suspended locomotive drive bearing, comprising a base and a top plate. Multiple supports for the top plate are located between the base and the top plate. A movable plate, a pressure plate, and a mounting ring are located between the base and the top plate. The supports pass through the movable plate, and the movable plate is slidably connected to the supports. A first drive unit capable of driving the movable plate to move up and down is provided on the top plate, and a second drive unit capable of driving the pressure plate to move up and down is provided on the movable plate. Multiple sets of clamping mechanisms and mounting blocks corresponding to each clamping mechanism are evenly distributed around the outer surface of the mounting ring along its axis. The mounting blocks are fixed to the outer surface of the mounting ring. The movable plate has support columns corresponding to each mounting block, and the support columns pass through the mounting blocks. The mounting blocks are slidably connected to the support columns. The lower end of each support column has a limiting block for limiting the position of the support column.

Description

Technical Field

[0001] This invention relates to the field of bearing installation technology, specifically to a press-fit device for a fully suspended locomotive drive bearing. Background Technology

[0002] Bearings support rotating mechanical parts through rolling support from steel balls between their inner and outer rings, reducing the coefficient of friction during movement and ensuring rotational accuracy. The design of fully suspended railway locomotives aims to reduce unsprung weight, meet the demands of high-speed, heavy-load railways, and improve operational reliability. The drive bearings installed in these locomotives are indispensable key components in the mechanical transmission. In existing technologies, to reduce labor intensity and improve efficiency during drive bearing press-fitting, a hydraulic cylinder is typically used to drive a press-fitting structure to directly press the drive bearing into the mounting hole of the traction gear. Since the outer ring of the drive bearing and the mounting hole of the traction gear have an interference fit, a certain pressure is required to complete the press-fitting operation. To ensure precise alignment during press-fitting, a mechanical component aligns the center of the drive bearing before press-fitting, and then the hydraulic cylinder presses the drive bearing downwards. Its drawback is that if the mechanical parts are loosened during press-fitting (i.e., the bearing is displaced relative to the mechanical parts under the thrust of the hydraulic cylinder), the drive bearing is prone to shifting due to the vibration of the hydraulic cylinder. If they are not loosened, the outer ring of the drive bearing is prone to scratching under the pressure of the mechanical parts. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a press-fitting device for the drive bearing of a fully suspended locomotive, which overcomes the shortcomings of the prior art.

[0004] The technical solution adopted in this invention is: a press-fitting device for a fully suspended locomotive drive bearing, comprising a base and a top plate, wherein multiple supports for supporting the top plate are provided between the base and the top plate, and a movable plate, a pressure plate and a mounting ring are provided between the base and the top plate, wherein the supports pass through the movable plate and the movable plate is slidably connected to the supports, a first drive unit capable of driving the movable plate to move up and down is provided on the top plate, and a second drive unit capable of driving the pressure plate to move up and down is provided on the movable plate;

[0005] Multiple sets of clamping mechanisms and mounting blocks corresponding to each clamping mechanism are evenly distributed around the outer surface of the mounting ring along its axis. The mounting blocks are fixed to the outer surface of the mounting ring. The movable plate has support columns corresponding to each mounting block. The support columns pass through the mounting blocks. The mounting blocks are slidably connected to the support columns. The lower end of the support columns has a limiting block for limiting the position of the support columns.

[0006] The clamping mechanism includes a mounting base, a sealing cylinder, a telescopic column, a fixing frame, a clamping cam, a sealing block, a placement cylinder, and a sealing post. The mounting base is fixed to the side of the mounting ring. The sealing cylinder is fixed to the outer surface of the mounting base, with its open end facing downwards from the mounting ring. One end of the telescopic column extends into the sealing cylinder from its open end. The telescopic column has a T-shaped cross-section. A spring is located inside the sealing cylinder, with both ends contacting the other end of the sealing cylinder and one end of the telescopic column, respectively. The end of the telescopic column outside the sealing cylinder is connected to the fixing frame. The clamping cam is located on the fixing frame. Both sides of the fixing frame have reset components for the clamping cam. The sealing block is fixed to the top of the sealing cylinder. The placement cylinder is fixed to the top of the sealing block. The sealing block has a communicating cavity, both ends of which are connected to the interior of the sealing cylinder. The two ends of the communicating cavity are respectively close to the two ends of the sealing cylinder. The placement cylinder is connected to the communicating cavity. The sealing post is located inside the placement cylinder. The lower outer diameter of the sealing post is larger than the upper outer diameter of the sealing post. The top of the placement cylinder has a hole that allows the upper end of the sealing post to extend. The sealing post is slidably connected to the placement cylinder. A spring three is sleeved on the upper part of the sealing post. The two ends of the spring three can contact the top of the placement cylinder and the lower part of the sealing post, respectively. The lower end of the sealing post can penetrate into the communicating cavity. The bottom of the sealing cylinder has a limiting post. The sealing cylinder is filled with liquid, which can flow between the communicating cavity and the sealing cylinder.

[0007] Optionally, the base has a groove for placing the traction gear.

[0008] Optionally, the first drive unit and the second drive unit are hydraulic rod one and hydraulic rod two, respectively.

[0009] Optionally, the reset assembly includes a fixed block, a movable block, and an arc-shaped guide post. The fixed block is fixed to the outer surface of the fixing frame, the movable block is fixed to the central axis of the clamping cam, the arc-shaped guide post is concentric with the central axis, a spring is sleeved on the guide post, one end of the guide post is fixed to the movable block, the other end passes through the fixed block, and the guide post is slidably connected to the fixed block.

[0010] Optionally, an external gear ring is rotatably mounted inside the mounting ring, and multiple clamping cams are evenly distributed around its axis below the mounting ring. Each clamping cam has a rotating shaft with a gear on it. The rotating shaft extends into the mounting ring, and the gear meshes with the teeth on the inner side of the external gear ring. One of the rotating shafts is connected to a motor.

[0011] Optionally, the second clamping cam and the first clamping cam are arranged alternately.

[0012] The advantages and positive effects of this invention are:

[0013] 1. This optimized device achieves precise positioning with simultaneous pressing and adjustment. It uses three clamping mechanisms mounted on the outer surface of the mounting ring to hold the drive bearing. First, the telescopic column drives the telescopic column and clamping cam one to roll into contact with the drive bearing. Then, the pressure causes the cam one to contract inwards towards the sealing cylinder, compressing it and generating a rebound force. At this time, the sealing column is driven upwards by spring three, and the kerosene inside the sealing cylinder flows back through the connecting cavity under the push of the telescopic column. When clamping cam one rotates to one side plane abutting against the drive bearing, sufficient friction is generated... The support drive bearing is used to perform the first flexible clamping of the drive bearing. The limiting post abuts against the base, causing the support post to move downward relative to the clamping mechanism. This downward movement drives the sealing post into the middle of the communicating cavity, blocking the kerosene backflow passage in the inner cavity of the sealing cylinder. At this time, the clamping force of the clamping cam on the pair of drive bearings becomes rigid. As the drive bearing is pressed downward by the pressure plate and displaced, it drives the clamping cam to rotate. This not only achieves the positioning function of the drive bearing, but also avoids the possible scratching phenomenon on the outside of the drive bearing through rolling friction, effectively protecting the drive bearing.

[0014] 2. This device is also equipped with a mounting ring, a motor, a rotating shaft, an external gear ring, gears, and a clamping cam II to achieve the first effective clamping and positioning of the drive bearing. A set of external gear rings and multiple sets of rotating shafts are rotatably installed in the inner cavity of the mounting ring. The multiple sets of rotating shafts mesh with gears installed on their outer surfaces to achieve synchronous rotation of the three sets of rotating shafts. Driven by the motor, the three sets of clamping cam II can also achieve synchronous rotation through the transmission of the three sets of rotating shafts, so that one side of the plane of the clamping cam II rolls against the outer surface of the drive bearing, which greatly improves the centering accuracy of the drive bearing.

[0015] 3. The reset assembly is connected to the clamping cam 1. When the drive bearing abuts against the clamping cam 1 and drives the clamping cam 1 to rotate, the clamping cam 1 will drive the guide post to rotate and pass through the fixed block. At the same time, the compression spring 2 generates a rotational elastic force. The direction of this rotational elastic force is opposite to the rotation direction of the clamping cam 1. When the drive bearing moves downward, it will provide rotational resistance to the clamping cam 1 and act on the drive bearing. When the clamping cam 1 rotates to one side of its plane and abuts against the drive bearing, the rotational elastic force generated by the spring 2 is just perpendicular to the surface of the drive bearing and increases the friction between the clamping cam 1 and the drive bearing, making the clamping of the drive bearing more stable. Attached Figure Description

[0016] Figure 1 This is a front view diagram of the structure of the present invention;

[0017] Figure 2This is a side sectional view of the structure of the present invention;

[0018] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A;

[0019] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B;

[0020] Figure 5 This is a bottom schematic diagram of the clamping mechanism, mounting ring, rotating shaft, and clamping cam II of the present invention;

[0021] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point C;

[0022] Figure 7 This is a schematic diagram showing the separation of the clamping mechanism of the present invention;

[0023] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point D;

[0024] Figure 9 This is a schematic diagram showing the separation of the motor, shaft, external gear ring, gear, and clamping cam II of the present invention.

[0025] Figure 10 This is a front perspective view of the structure of the present invention.

[0026] In the diagram: 1. Base; 2. Support column; 3. Top plate; 4. Hydraulic rod one; 5. Moving plate; 6. Support column; 7. Hydraulic rod two; 8. Pressure plate; 9. Clamping mechanism; 91. Mounting seat; 92. Sealing cylinder; 93. Spring one; 94. Telescopic column; 95. Fixing frame; 96. Clamping cam one; 97. Fixing block; 98. Moving block; 99. Guide column; 910. Spring two; 911. Limiting column; 912. Sealing block; 913. Placement cylinder; 914. Sealing column; 915. Spring three; 916. Connecting cavity; 10. Mounting block; 11. Mounting ring; 12. Motor; 13. Rotating shaft; 14. External gear ring; 15. Gear; 16. Clamping cam two. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention through specific circumstances.

[0028] As shown in the figure, the present invention provides a press-fit device for a fully suspended locomotive drive bearing, including a base 1 and a top plate 3. There are multiple support columns 2 between the base 1 and the top plate 3 for supporting the top plate. There are a movable plate 5, a pressure plate 8 and a mounting ring 11 between the base 1 and the top plate 3. The support columns 2 pass through the movable plate 5 and are slidably connected to the movable plate 5. A hydraulic rod 4 that can drive the movable plate 5 to move up and down is provided on the top plate 3. A hydraulic rod 7 that can drive the pressure plate 8 to move up and down is provided on the movable plate 5.

[0029] Three sets of clamping mechanisms 9 and mounting blocks 10 corresponding to each clamping mechanism 9 are evenly distributed around the outer surface of the mounting ring 11 along its axis. The mounting blocks 10 are fixed to the outer surface of the mounting ring 11. The movable plate 5 has support columns 6 corresponding to each mounting block 10. The support columns 6 pass through the mounting blocks 10. The mounting blocks 10 and the support columns 6 are slidably connected. The lower end of the support column 6 has a limiting block for limiting the position of the support column 6. The limiting block ensures that the mounting block 10 is suspended on the support column 6.

[0030] The clamping mechanism 9 includes a mounting base 91, a sealing cylinder 92, a telescopic column 94, a fixing frame 95, a clamping cam 96, a sealing block 912, a placement cylinder 913, and a sealing post 914. The mounting base 91 is fixed to the side of the mounting ring 11. The sealing cylinder 92 is fixed to the outer surface of the mounting base 91, with its open end facing downwards from the mounting ring 11. One end of the telescopic column 94 extends into the sealing cylinder 92 from its open end. The telescopic column 94 has a "T" shaped cross-section. The sealing cylinder 92 contains a spring 93, and both ends of the spring 93 can... The other end of the sealing cylinder 92 and one end of the telescopic column 94 are respectively in contact. The end of the telescopic column 94 outside the sealing cylinder 92 is connected to the fixing frame 95. The clamping cam 96 is located on the fixing frame 95. Both sides of the fixing frame 95 have reset components for clamping the cam 96. The reset components include a fixing block 97, a moving block 98 and an arc-shaped guide post 99. The fixing block 97 is fixed to the outer surface of the fixing frame 95, the moving block 98 is fixed to the central axis of the clamping cam 96, and the arc-shaped guide post 99 is concentric with the central axis. Assume a spring 910, one end of a guide post 99 is fixed to a moving block 98, and the other end passes through a fixed block 97. The guide post 99 and the fixed block 97 are slidably connected. A sealing block 912 is fixed to the top of a sealing cylinder 92, and a placement cylinder 913 is fixed to the top of the sealing block 912. The sealing block 912 has a communicating cavity 916, both ends of which communicate with the interior of the sealing cylinder 92. The two ends of the communicating cavity 916 are respectively close to the two ends of the sealing cylinder 92. The placement cylinder 913 communicates with the communicating cavity 916, and a sealing post 914 is located inside the placement cylinder 913. The lower outer diameter of the column 914 is larger than the upper outer diameter of the sealing column. The top of the placement cylinder 913 has a hole that allows the upper end of the sealing column 914 to extend. The sealing column 914 is slidably connected to the placement cylinder 913. A spring 915 is sleeved on the upper part of the sealing column 914. The two ends of the spring 915 can contact the top of the placement cylinder 913 and the lower part of the sealing column 914 respectively. The lower end of the sealing column 914 can penetrate into the connecting cavity 916. The bottom of the sealing cylinder 92 has a limiting column 911. The sealing cylinder 92 is filled with kerosene, which can flow between the connecting cavity 916 and the sealing cylinder 92.

[0031] A groove for placing the traction gear is provided on the base 1. An external gear ring 14 is rotatably mounted inside the mounting ring 11. Three clamping cams 16 are evenly distributed around the axis below the mounting ring 11. Each clamping cam 16 has a rotating shaft 13 with a gear 15. The rotating shaft 13 extends into the mounting ring 11, and the gear 15 meshes with the teeth on the inner side of the external gear ring 14. One of the rotating shafts 13 is connected to a motor 12. Driven by the motor 12, the three sets of rotating shafts 13 rotate synchronously, so that one side of the plane of the clamping cam 16 rolls against the outer surface of the drive bearing, greatly improving the centering accuracy of the drive bearing. The clamping cams 16 and 96 together clamp the drive bearing.

[0032] This optimized device achieves precise positioning with simultaneous pressing and adjustment. Three clamping mechanisms 9, mounted on the outer surface of the mounting ring 11, clamp the drive bearing. First, the telescopic column 94 drives the clamping cam 96 to roll into contact with the drive bearing. Then, the pressure causes the seal cylinder 92 to contract inwards, compressing it and generating a rebound force. At this time, the sealing column 914 is driven upwards by the spring 915. The kerosene inside the seal cylinder 92 flows back through the connecting cavity 916 under the push of the telescopic column 94. When the clamping cam 96 rotates to one side of its plane abutting against the drive bearing, sufficient force is generated. Friction supports the drive bearing and provides initial flexible clamping. The limiting post 911 abuts against the base 1, causing the support post 6 to move downward relative to the clamping mechanism 9. This downward movement drives the sealing post 914 into the middle of the connecting cavity 916, blocking the kerosene backflow passage in the inner cavity of the sealing cylinder 92. At this time, the clamping force of the clamping cam 96 on the drive bearing becomes rigid. As the drive bearing is pressed downward by the pressure plate 8 and displaced, the clamping cam 96 rotates, achieving not only the positioning function of the drive bearing but also avoiding potential scratching of the drive bearing's exterior through rolling friction, effectively protecting the drive bearing.

[0033] The drive gear is placed from the top of the mounting ring 11 and performs its first positioning slide through the inner ring surface of the mounting ring 11. The reset components are symmetrically distributed at both ends of the central shaft of the clamping cam 96. When the drive bearing abuts against the clamping cam 96 and drives the clamping cam 96 to rotate, the clamping cam 96 will drive the guide post 99 to rotate and pass through the fixing block 97. At the same time, the compression spring 910 generates a rotational elastic force. The direction of this rotational elastic force is opposite to the rotation direction of the clamping cam 96. When the drive bearing moves downward, it will provide rotational resistance to the clamping cam 96 and act on the drive bearing. When the clamping cam 96 rotates to one side of its plane and abuts against the drive bearing, the rotational elastic force generated by the spring 910 is exactly perpendicular to the surface of the drive bearing and increases the friction between the clamping cam 96 and the drive bearing, making the clamping of the drive bearing more stable.

[0034] The planar portion of the clamping cam 96 abuts against the outer surface of the drive bearing. The clamping cam 96 can rotate downwards around its axis and compress the spring 910. One side of the planar portion of the clamping cam 96 abuts against the outer surface of the drive bearing, and its contact surface is a line, which greatly increases the contact area and helps to improve the friction. The telescopic column 94 has a "T" shaped cross-section. The kerosene is sealed and isolated from both sides of the inner cavity of the sealing cylinder 92 by the other end of the telescopic column 94, and the kerosene can flow back through the connecting cavity 916.

[0035] like Figure 3As shown, the other end of the telescopic column 94 divides the inner cavity of the sealing cylinder 92 into two parts. When it moves, it pushes the kerosene inside to flow back and forth. When the connecting cavity 916 is connected, the telescopic column 94 can move freely. When the connecting cavity 916 is blocked by the sealing column 914, the incompressible property of kerosene will fix the telescopic column 94 in place, which is convenient to provide rigid clamping force for the drive bearing during press fitting.

[0036] The limiting block at the bottom of the support column 6 is designed to support the entire assembly of the mounting block 10, mounting ring 11, and clamping mechanism 9. When the limiting column 911 moves to the lowest point, it provides support for the mounting block 10, mounting ring 11, and clamping mechanism 9. At this time, the support column 6 continues to move downward and presses the sealing column 914 to block the connecting cavity 916, fix the position of the telescopic column 94, and provide rigid clamping for the drive bearing in conjunction with the clamping cam 96.

[0037] When the bottom of the limiting post 911 abuts against the base 1, the bottom end of the support post 6 abuts against the top end of the sealing post 914, and drives the sealing post 914 downward into the middle of the inner wall of the connecting cavity 916, so that the middle of the connecting cavity 916 is blocked.

[0038] The sealing column 914 is used to block the connecting cavity 916. When the drive bearing enters between the clamping cam 96, kerosene can flow freely through the connecting cavity 916. When the sealing column 914 blocks the connecting cavity 916, the kerosene no longer flows. At this time, the telescopic column 94 is directly fixed.

[0039] The outer surface of the clamping cam 16 abuts against the drive bearing, and the protruding side of the clamping cam 16 is away from the outer surface of the drive bearing.

[0040] When the flat side of the clamping cam 16 is away from the drive bearing, it does not exert force on the bearing. When the drive bearing is press-fitted, the clamping cam 16 will not scratch the outer surface of the drive bearing.

[0041] Working principle:

[0042] When this device is in operation:

[0043] First, place the traction gear in the groove at the top of the base 1, and insert the drive gear from the top of the mounting ring 11, so that it moves downward through the inner wall of the mounting ring 11 and contacts the clamping mechanism 9. The drive gear falls on the outer surface of the clamping cam 96 and drives the clamping cam 96 to rotate downward. The reset assembly starts to work, driving the moving block 98 and the guide column 99 to rotate around the axis of the clamping cam 96 and compress the spring 910, generating a rotational force. At the same time, the fixing frame 95 and the clamping cam 96 are subjected to force and retract outward, driving the telescopic column 94 to compress the spring 93. The kerosene in the inner cavity of the sealing cylinder 92 flows back through the connecting cavity 916. When the clamping cam 96 rotates to the point where its side plane just fits and abuts against the outer surface of the drive bearing, it generates friction with the drive bearing and counteracts gravity.

[0044] Then, the motor 12 is started, driving the rotating shaft 13 and gear 15 to rotate. Gear 15 drives the external gear ring 14 to rotate, and synchronously transmits power to other gears 15 and the rotating shaft 13, causing multiple sets of clamping cams 16 to rotate synchronously at the same angle, such as... Figure 5 As shown, the raised plane of the clamping cam 16 rotates and abuts against the outer surface of the drive bearing, and applies pressure to the drive bearing as the motor 12 drives it, setting the torque of the motor 12 and positioning the axis of the drive bearing to the same position as the traction gear.

[0045] Then, the hydraulic rod 4 is activated and drives the support column 6, mounting block 10 and clamping mechanism 9 to move downward. When the bottom of the limit column 911 abuts against the base 1, the clamping mechanism 9 and mounting ring 11 stop moving downward. At this time, the support column 6, which supports the mounting block 10, will continue to move and push the sealing column 914 downward, stretching the spring 915. The sealing column 914 blocks the middle of the connecting cavity 916, preventing the two streams of kerosene that are sealed and isolated by the sealing cylinder 92 from flowing back. At this time, the telescopic column 94 cannot move, and the motor 12 is started to rotate and reset, so that the clamping cam 16 no longer applies pressure to the outer surface of the drive bearing.

[0046] Finally, hydraulic rod 7 is activated, causing pressure plate 8 to move downwards through the inner ring of mounting ring 11 and press against the drive bearing, as shown. Figure 2 As shown, the drive bearing moves downward relative to the clamping cam 96, but the two are in rolling friction. When the drive bearing moves downward, the clamping cam 96 will roll accordingly. The telescopic column 94 and the fixed frame 95 provide rigid clamping pressure on the bearing. The bearing is pressed into the mounting hole of the traction gear by the pressure plate 8.

[0047] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A press-fitting device for a fully suspended locomotive drive bearing, characterized in that: The device includes a base and a top plate. Multiple support columns for supporting the top plate are provided between the base and the top plate. A movable plate, a pressure plate, and a mounting ring are provided between the base and the top plate. The support columns pass through the movable plate, and the movable plate is slidably connected to the support columns. A first drive unit that can drive the movable plate to move up and down is provided on the top plate, and a second drive unit that can drive the pressure plate to move up and down is provided on the movable plate. Multiple sets of clamping mechanisms and mounting blocks corresponding to each clamping mechanism are evenly distributed around the outer surface of the mounting ring along its axis. The mounting blocks are fixed to the outer surface of the mounting ring. The movable plate has support columns corresponding to each mounting block. The support columns pass through the mounting blocks. The mounting blocks are slidably connected to the support columns. The lower end of the support columns has a limiting block for limiting the position of the support columns. The clamping mechanism includes a mounting base, a sealing cylinder, a telescopic column, a fixing frame, a clamping cam, a sealing block, a placement cylinder, and a sealing post. The mounting base is fixed to the side of the mounting ring. The sealing cylinder is fixed to the outer surface of the mounting base, with its open end facing downwards from the mounting ring. One end of the telescopic column extends into the sealing cylinder from its open end. The telescopic column has a "T"-shaped cross-section. A spring is located inside the sealing cylinder, with both ends contacting the other end of the sealing cylinder and one end of the telescopic column, respectively. The end of the telescopic column outside the sealing cylinder is connected to the fixing frame. The clamping cam is located on the fixing frame. Both sides of the fixing frame have reset components for the clamping cam. The sealing block is fixed to the top of the sealing cylinder. The placement cylinder is fixed to the top of the sealing block. The sealing block has a communicating cavity, both ends of which are connected to the interior of the sealing cylinder. The two ends of the communicating cavity are respectively close to the two ends of the sealing cylinder. The placement cylinder is connected to the communicating cavity. The sealing post is located inside the placement cylinder. The lower outer diameter of the sealing post is larger than the upper outer diameter of the sealing post. The top of the placement cylinder has a hole that allows the upper end of the sealing post to extend. The sealing post is slidably connected to the placement cylinder. A spring three is sleeved on the upper part of the sealing post. The two ends of the spring three can contact the top of the placement cylinder and the lower part of the sealing post, respectively. The lower end of the sealing post can penetrate into the communicating cavity. The bottom of the sealing cylinder has a limiting post. The sealing cylinder is filled with liquid, which can flow between the communicating cavity and the sealing cylinder.

2. The press-fitting device for the drive bearing of a fully suspended locomotive according to claim 1, characterized in that: The base has a groove for placing the traction gear.

3. The press-fitting device for the fully suspended locomotive drive bearing according to claim 1, characterized in that: The first drive unit and the second drive unit are hydraulic rod one and hydraulic rod two, respectively.

4. The press-fitting device for the drive bearing of a fully suspended locomotive according to any one of claims 1-3, characterized in that: The reset assembly includes a fixed block, a movable block, and an arc-shaped guide post. The fixed block is fixed to the outer side of the fixing frame, the movable block is fixed to the central axis of the clamping cam, the arc-shaped guide post is concentric with the central axis, a spring is sleeved on the guide post, one end of the guide post is fixed to the movable block, the other end passes through the fixed block, and the guide post is slidably connected to the fixed block.

5. The press-fitting device for the drive bearing of a fully suspended locomotive according to any one of claims 1-3, characterized in that: An external gear ring is rotatably mounted inside the mounting ring. Multiple clamping cams are evenly distributed around the axis below the mounting ring. Each clamping cam has a rotating shaft with a gear. The rotating shaft extends into the mounting ring, and the gear meshes with the teeth on the inner side of the external gear ring. A motor is connected to one of the rotating shafts.

6. The press-fitting device for the drive bearing of a fully suspended locomotive according to claim 5, characterized in that: The second clamping cam is staggered with the first clamping cam.

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