Locomotive axle box bearing removal device

Abstract

This utility model discloses a locomotive axle box bearing removal device, relating to the field of locomotive parts repair. The device includes a main body comprising a base, a hydraulic power unit, a main control box, a pull plate, an adjusting cylinder, a bearing slot, and a main shaft slot. In use, the pull plate contracts under the pressure of the bearing, causing the hydraulic rod to move and opening the liquid inlet. At this time, pressurized liquid in the auxiliary adjustment tank is transmitted to the liquid inlet. Pressure is applied to the chassis and the pressure block, causing the pressure block to move into the clearance groove. A gap is created between the push rod and the liquid inlet, allowing liquid to be transmitted through the gap to the delivery tank and seepage tank, thereby injecting liquid pressure into the connection between the bearing inner ring and the main shaft. This effectively provides auxiliary lubrication during the removal operation, significantly reducing resistance during bearing removal and effectively preventing damage to the bearing and puller due to excessive pressure.

Description

Technical Field

[0001] This utility model relates to the field of locomotive parts repair, specifically a locomotive axle box bearing removal device. Background Technology

[0002] The axle box is a key component of the railway vehicle bogie. During long-term use, the bearings on the axle box need to be inspected and replaced. Therefore, it is necessary to remove the bearings from the axle box.

[0003] During bearing removal operations, a hydraulic device is typically used to drive a puller (pulling plate / pulling claw) to clamp the bearing. The retraction of the hydraulic device allows the bearing to be removed from the spindle. However, over long-term use, blockages can accumulate in the inner ring of the bearing and the spindle. This dry friction operation increases the removal resistance, requiring greater pressure during the removal process. Excessive pressure can damage the bearing and the puller. Therefore, this invention provides a locomotive axle box bearing removal device to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a locomotive axle box bearing removal device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A locomotive axle box bearing removal device includes a main body, which comprises a base, a hydraulic power unit, a main control box, a pull plate, an adjusting cylinder, a bearing slot, and a spindle slot. The hydraulic power unit is mounted on the top of the base, and the main control box is mounted on the output end of the hydraulic power unit. Pull plates are movably mounted on both sides of the main control box corresponding to one end of the axle box. Adjusting cylinders are mounted on both sides of the main control box corresponding to the pull plate positions, and the output ends of the adjusting cylinders are connected to the pull plates. The pull plates are L-shaped plates. The bearing slots are located on the inner sides of the two sets of pull plates, close to each other. The spindle slot is located on the side wall of the L-end of the pull plate. A liquid injection component is installed on the inner side of the pull plate corresponding to the spindle slot position. A liquid infusion device is mounted on the main control box, with the end of the liquid infusion device away from the main control box mounted on the two sets of pull plates, and the liquid infusion device and the liquid injection component are interconnected.

[0006] As a further embodiment of this utility model, the infusion device includes a liquid tank and a pressurization module. The liquid tank is fixedly installed on the main control box, and the pressurization module is installed on the top of two sets of pull plates. The input end of the pressurization module and the inside of the liquid tank are connected through a connecting pipe. The output end of the pressurization module passes through the pull plate and is connected to the input channel of the infusion assembly.

[0007] As a further embodiment of this utility model, the liquid injection assembly includes a pressure receiving component, a transmission component, an auxiliary adjustment component, and a reverse thrust component. The pressure receiving component is installed on the pull plate at a position corresponding to the main shaft slot. The transmission component is installed around the pull plate at intervals at positions corresponding to the pressure receiving component, and the output end of the transmission component and the pressurization module are interconnected. The auxiliary adjustment component is installed on the transmission component, and the reverse thrust component is installed inside the transmission component at a position away from the pressure receiving component.

[0008] As a further embodiment of this utility model, the pressure-bearing component includes a shrinkage groove, a clamping plate, a seepage groove, and an infusion groove. The shrinkage groove is an annular groove, which is opened on the inner side of the pull plate corresponding to the position of the main shaft clamping groove. The clamping plate is a triangular arc-shaped plate with an inner diameter that matches the inner diameter of the main shaft clamping groove. The infusion groove is opened around the clamping plate on the side wall near the pull plate, and the position of the infusion groove corresponds to the position of the transmission component. The infusion groove and the transmission component are interconnected. The infusion groove gradually narrows from the end near the transmission component to the end away from the transmission component, and the end of the infusion groove away from the transmission component penetrates the inner diameter of the clamping plate corresponding to the side wall. A seepage groove is opened on the inner diameter of the side wall corresponding to the conical end, and the seepage groove and the infusion groove are interconnected.

[0009] As a further embodiment of this utility model, the transmission component includes a liquid rod, an auxiliary adjustment groove, a limiting cylinder, a transmission groove, and an inlet groove. The auxiliary adjustment groove is located inside the pull plate and is connected to the output end of the pressurization module. The liquid rod is fixedly installed on the clamping plate at the position corresponding to the infusion groove. The end of the liquid rod away from the clamping plate slides through the pull plate and extends into the auxiliary adjustment groove. The limiting cylinder is fixedly installed inside the auxiliary adjustment groove at the end away from the liquid rod. The end of the liquid rod away from the clamping plate extends into the limiting cylinder, and the inner diameter of the limiting cylinder matches the outer diameter of the end of the liquid rod away from the clamping plate. The inlet groove is arranged around the side wall of the liquid rod. The transmission groove is located inside the liquid rod at the position corresponding to the inlet groove. One end of the liquid rod is connected to the inlet groove, and the other end of the liquid rod is connected to the infusion groove.

[0010] As a further embodiment of this utility model, the auxiliary adjusting component includes an auxiliary plate, a limiting spring, and a blocking ring. The auxiliary plate is fixedly installed on the side wall of the liquid rod and is located in the auxiliary adjusting groove. The limiting spring is fixedly installed on the inner side of the auxiliary adjusting groove near one end of the clamping plate, and the other end of the limiting spring is installed on the auxiliary plate. The blocking ring is fitted on the liquid rod at the position corresponding to the liquid inlet groove, and the outer end of the blocking ring is installed in the auxiliary adjusting groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. When this utility model is in use, after the pull plate and the bearing come into contact, during the unloading operation, the clamping plate on the pull plate will contact the junction of the bearing inner ring and the main shaft. As the hydraulic power device is activated, the clamping plate will be compressed and adjusted by the bearing pressure, thereby causing the hydraulic rod to move and opening the liquid inlet tank. At this time, the pressurized liquid in the auxiliary adjustment tank will be transmitted to the liquid inlet tank. The pressure operation is on the chassis and the pressure block, driving the pressure block to move into the clearance groove. At this time, a gap is created between the push rod and the liquid inlet tank, and the liquid is transmitted to the delivery tank and seepage tank through the gap, thereby injecting liquid pressure into the connection between the bearing inner ring and the main shaft. This can effectively assist in lubrication during the unloading operation, greatly reducing the resistance generated during the bearing unloading operation and effectively avoiding damage to the bearing and puller caused by excessive pressure.

[0012] 2. When this utility model is in use, the reverse thrust component can effectively transfer the liquid in the transmission tank to the infusion tank through the squeezing of the chassis and push rod when the bearing is about to be completely removed. The infusion tank impacts the end of the main shaft and the final connection of the inner ring of the bearing, which can effectively clean the main shaft. It can also use the impact force to assist the bearing in impacting, which facilitates the separation of the bearing.

[0013] 3. When this utility model is in use, the blocking ring can transfer liquid to the liquid inlet tank during the unloading operation. When the unloading operation is about to end, the pressure on the clamping plate from the bearing decreases. At this time, the blocking ring will seal the liquid inlet tank. At the same time, the pusher is not subjected to the pressure of the pressurized liquid, and can effectively push the liquid in the transfer tank out by pushing. This can effectively achieve real-time liquid injection and lubrication during the operation. After the operation is completed, the liquid injection and lubrication operation can be stopped in a timely manner. At the same time, when the operation is about to end, the pusher can discharge the liquid in the transfer tank and use the discharged liquid to perform a final impact cleaning on the spindle and bearing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the locomotive axle box bearing removal device.

[0015] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0016] Figure 3 This is a partial cross-sectional view of the pull plate in the axle box bearing removal device of a locomotive.

[0017] Figure 4 This is a partial cross-sectional view of the hydraulic rod in the locomotive axle box bearing unloading device.

[0018] In the diagram: 1. Base; 2. Hydraulic power unit; 3. Main control box; 4. Pull plate; 5. Adjusting cylinder; 6. Bearing slot; 7. Main shaft slot; 8. Liquid tank; 9. Pressurization module; 10. Shrinkage tank; 11. Clamping plate; 12. Seepage tank; 13. Hydraulic rod; 14. Infusion tank; 15. Auxiliary adjustment tank; 16. Limiting cylinder; 17. Auxiliary plate; 18. Limiting spring; 19. Blocking ring; 20. Transmission tank; 21. Push rod; 22. Liquid inlet tank; 23. Clearance tank; 24. Chassis; 25. Return spring; 26. Pressure block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 In this embodiment of the utility model, the locomotive axle box bearing removal device includes a main body, which is disposed on both sides of the axle box. The main body includes a base 1, a hydraulic power unit 2, a main control box 3, a pull plate 4, an adjusting cylinder 5, a bearing slot 6, and a main shaft slot 7. The hydraulic power unit 2 is installed on the top of the base 1, and the main control box 3 is installed on the output end of the hydraulic power unit 2. The hydraulic power unit 2 can drive the main control box 3 to extend and retract. The pull plate 4 is movably installed on both sides of the main control box 3 corresponding to one end of the axle box. Adjusting cylinders 5 are installed on both sides of the main control box 3 corresponding to the pull plate 4. The output end of the adjusting cylinder 5 is connected to the pull plate 4. The two sets of adjusting cylinders 5 can control the two sets of pull plates 4 to move closer and further apart synchronously. The plate is L-shaped. The bearing slot 6 is located on the inner side of the two pull plates 4, close to each other. The inner diameter of the bearing slot 6 is matched with the outer diameter of the bearing in the bearing housing. The spindle slot 7 is located on the side wall of the L-shaped end of the pull plate 4. The inner diameter of the spindle slot 7 is matched with the outer diameter of the spindle on which the bearing is installed. A liquid injection component is installed on the inner side of the pull plate 4 corresponding to the position of the spindle slot 7. The liquid injection component can inject cleaning fluid or lubricating fluid into the connection between the inner ring of the bearing and the spindle when the bearing on the spindle is pulled, thereby reducing the resistance caused by the bearing removal. A liquid infusion device is installed on the main control box 3. The end of the liquid infusion device away from the main control box 3 is installed on the two pull plates 4, and the liquid infusion device and the liquid injection component are interconnected. The liquid infusion device transmits cleaning fluid or lubricating fluid to the liquid injection component.

[0021] The infusion unit includes a liquid tank 8 and a pressurization module 9. The liquid tank 8 is fixedly installed on the main control box 3. The pressurization module 9 is installed on the top of two sets of pull plates 4. The input end of the pressurization module 9 is connected to the inside of the liquid tank 8 through a connecting pipe. The output end of the pressurization module 9 passes through the pull plate 4 and is connected to the input channel of the infusion assembly.

[0022] The liquid injection assembly includes a pressure receiving component, a transmission component, an auxiliary adjustment component, and a reverse thrust component. The pressure receiving component is installed on the pull plate 4 at the position corresponding to the spindle slot 7. The transmission component is installed around the pull plate 4 at intervals at the position corresponding to the pressure receiving component, and the output ends of the transmission component and the pressurization module 9 are interconnected. The cleaning fluid or lubricating fluid is transmitted to the pressure receiving component through the transmission component, and then to the connection between the inner shaft of the bearing and the spindle through the pressure receiving component. The auxiliary adjustment component is installed on the transmission component, and the reverse thrust component is installed inside the transmission component at the end away from the pressure receiving component. The reverse thrust component can seal the inside of the transmission component. When the pressurized liquid is transmitted into the transmission component, the reverse thrust component no longer seals the transmission component. When the bearing removal operation is about to end, the reverse thrust component can push out the residual liquid inside the transmission component.

[0023] The pressure-bearing components include a shrinkage groove 10, a clamping plate 11, a seepage groove 12, and an infusion groove 14. The shrinkage groove 10 is an annular groove, located on the inner side of the pull plate 4 corresponding to the position of the main shaft clamping groove 7. The clamping plate 11 is a triangular arc-shaped plate with an inner diameter that matches the inner diameter of the main shaft clamping groove 7. The infusion groove 14 is spaced around the clamping plate 11 on the side wall near the pull plate 4, and the position of the infusion groove 14 corresponds to the position of the transmission component. The infusion groove 14 and the transmission component are interconnected. The liquid tank 14 gradually narrows from the end near the transmission component to the end away from the transmission component, and the end of the liquid tank 14 away from the transmission component penetrates the inner diameter corresponding side wall of the card plate 11. A seepage groove 12 is opened on the inner diameter corresponding side wall of the liquid tank 14 at the corresponding conical end position, and the seepage groove 12 and the liquid tank 14 are interconnected. When the solution is transferred to the conical end of the card plate 11 through the liquid tank 14 by the transmission component, the transferred solution will first overflow onto the seepage groove 12, and then be injected into the connection between the inner shaft of the bearing and the main shaft through the seepage groove 12.

[0024] The transmission components include a liquid rod 13, an auxiliary adjustment groove 15, a limiting cylinder 16, a transmission groove 20, and an inlet groove 22. The auxiliary adjustment groove 15 is located inside the pull plate 4 and is connected to the output end of the pressurization module 9. The liquid rod 13 is fixedly installed on the clamping plate 11 at the position corresponding to the inlet groove 14. The end of the liquid rod 13 away from the clamping plate 11 slides through the pull plate 4 and extends into the auxiliary adjustment groove 15. The limiting cylinder 16 is fixedly installed inside the auxiliary adjustment groove 15 at the end away from the liquid rod 13. One end of the clamping plate 11 extends into the limiting cylinder 16, and the inner diameter of the limiting cylinder 16 is matched with the outer diameter of the end of the liquid rod 13 away from the clamping plate 11. The liquid inlet groove 22 is opened around the side wall of the liquid rod 13. The transfer groove 20 is opened on the inner side of the liquid rod 13 corresponding to the position of the liquid inlet groove 22. One end of the liquid rod 13 is connected to the liquid inlet groove 22, and the other end of the liquid rod 13 is connected to the infusion tank 14. The solution is transferred to the infusion tank 14 through the liquid inlet groove 22 and the transfer groove 20.

[0025] The auxiliary adjustment components include an auxiliary plate 17, a limiting spring 18, and a blocking ring 19. The auxiliary plate 17 is fixedly installed on the side wall of the liquid rod 13 and is located inside the auxiliary adjustment groove 15. The limiting spring 18 is fixedly installed inside the auxiliary adjustment groove 15 near one end of the clamping plate 11, and the other end of the limiting spring 18 is installed on the auxiliary plate 17. The blocking ring 19 is fitted onto the liquid rod 13 at the position corresponding to the liquid inlet groove 22. The outer end of the blocking ring 19 is installed inside the auxiliary adjustment groove 15, and the blocking ring 19 can seal the liquid inlet groove 22. When the clamping plate 11 is subjected to bearing... When the inner ring is squeezed, the clamping plate 11 will drive the liquid rod 13 to move and adjust to the inside of the auxiliary adjustment tank 15, thereby causing the liquid inlet 22 on the liquid rod 13 to gradually move out of the inner ring of the blocking ring 19 and complete the opening. After the liquid inlet 22 is opened, it will transfer the solution in the auxiliary adjustment tank 15 to the delivery tank 14 through the transfer tank 20. When the bearing is removed, the clamping plate 11 is no longer under pressure, and then the limiting spring 18 drives the auxiliary plate 17 to reset, so that the blocking ring 19 seals the liquid inlet 22 again, thereby blocking the transfer of the solution.

[0026] The reverse thrust component includes a push rod 21, a clearance groove 23, a base 24, a return spring 25, and a pressure block 26. The clearance groove 23 is located inside the liquid rod 13 at the end away from the clamping plate 11. The liquid inlet groove 22 is located between the transmission groove 20 and the clearance groove 23, and the transmission groove 20, the liquid inlet groove 22, and the clearance groove 23 are interconnected. The transmission groove 20 gradually narrows from the end near the liquid inlet groove 22 to the end away from the liquid inlet groove 22. The push rod 21 is installed inside the transmission groove 20, and the shape and size of the push rod 21 are adapted to the shape and size of the transmission groove 20. The base 24 is installed inside the clearance groove 23, and the outer diameter of the base 24 is adapted to the inner diameter of the clearance groove 23. The return spring 25 is fixed. The return spring 25 is installed at the end of the chassis 24 away from the push rod 21. The end of the return spring 25 away from the chassis 24 is installed in the relief groove 23. The chassis 24 can be extended and retracted within the relief groove 23 via the return spring 25. The pressure block 26 is fixedly installed at the end of the chassis 24 near the push rod 21. The pressure block 26 is a frustum-shaped block, gradually narrowing from the end near the chassis 24 to the end away from the chassis 24. The end of the pressure block 26 away from the chassis 24 is fixedly installed on the corresponding side wall of the push rod 21. The angle of the inclined surface of the pressure block 26 is greater than the angle of the inclined surface of the push rod 21. The outer diameter of the end of the push rod 21 near the liquid inlet 22 is smaller than the outer diameter of the chassis 24. According to F=P... S, when the pressurized liquid enters the liquid rod 13 through the inlet tank 22, the liquid will squeeze the pressure block 26 and its two ends. Due to the influence of the inclined surface of the pressure block 26 and the pressure area of ​​the base 24 being greater than the pressure area of ​​the push rod 21, the base 24 will move inward towards the relief groove 23, thereby driving the push rod 21 to move and adjust accordingly. At this time, a gap is generated between the transmission tank 20 and the push rod 21, and the liquid will be transmitted into the delivery tank 14 through the gap, thereby allowing the liquid to be injected into the bearing inner ring through the seepage tank 12. The injected liquid will clean or lubricate the bearing inner ring, thereby assisting the bearing removal. When the bearing removal is about to be completed, the bearing has already produced With noticeable loosening, the pressure exerted by the bearing on the clamping plate 11 decreases, and the clamping plate 11 will be reset and moved by the limiting spring 18, thereby causing the blocking ring 19 to seal the liquid inlet tank 22. At this time, the chassis 24 and the pressure block 26 are no longer squeezed by liquid pressure, and are then reset and adjusted by the reset spring 25, causing the chassis 24 to drive the push rod 21 to squeeze the solution in the transfer tank 20 and the liquid inlet tank 22 towards the side closer to the infusion tank 14. The squeezed solution will be sprayed outward through the infusion tank 14 and the seepage tank 12, which can impact the end of the main shaft and the final connection of the bearing, which can both assist the bearing to disengage and effectively clean the main shaft.

[0027] The working principle of this utility model is as follows: In use, the bearing housing is transferred to the corresponding positions of the two sets of pull plates 4 on the main body of the equipment. The hydraulic power unit 2 is started to drive the main control box 3 to move towards the bearing of the bearing housing. After moving to the designated position, the two sets of adjusting cylinders 5 are controlled to make the two sets of pull plates 4 clamp the bearing and the main shaft on which it is installed through the bearing slot 6 and the main shaft slot 7. At this time, by controlling the hydraulic power unit 2, the hydraulic power unit 2 drives the main control box 3 to retract and move, thereby driving the bearing to move and adjust on the main shaft, thus completing the removal of the bearing.

[0028] During the bearing removal operation, the pressure component on the spindle slot 7 will be squeezed against the connection between the bearing inner shaft and the spindle, and inserted into the gap at the connection. At this time, due to the pressure, the pressure component will push the liquid rod 13 to move inside the auxiliary adjustment tank 15, thereby allowing the cleaning fluid or lubricating fluid in the auxiliary adjustment tank 15 to be transferred to the delivery tank 14 through the liquid inlet tank 22 and the transfer tank 20. This allows the liquid to be injected into the connection between the bearing and the spindle through the seepage tank 12, thus assisting in the bearing removal operation. When the bearing is about to detach from the spindle, the pressure on the pressure component decreases, and it will be reset by the limit spring 18. This causes the blocking ring 19 to seal the liquid inlet tank 22, and the chassis 24 inside the relief tank 23 will be reset and squeezed by the reset spring 25, driving the pressure block 26 and the push rod 21. This allows the liquid in the liquid rod 13 to be discharged through the delivery tank 14 and the seepage tank 12, thus providing final cleaning and impact assistance when the bearing is about to detach.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A locomotive axle box bearing removal device, comprising a main body, the main body including a base (1), a hydraulic power unit (2), a main control box (3), a pull plate (4), an adjusting cylinder (5), a bearing slot (6), and a main shaft slot (7), wherein the hydraulic power unit (2) is installed on the top of the base (1), and the main control box (3) is installed on the output end of the hydraulic power unit (2), characterized in that: The main control box (3) is equipped with pull plates (4) on both sides of one end of the bearing box. Adjustment cylinders (5) are installed on both sides of the main control box (3) corresponding to the pull plates (4). The output end of the adjustment cylinder (5) is connected to the pull plate (4). The pull plate (4) is an "L" shaped plate. The bearing slot (6) is opened on the inner side of the two pull plates (4) and close to each other. The spindle slot (7) is opened on the side wall of the "L" end of the pull plate (4). The liquid injection component is installed on the inner side of the pull plate (4) corresponding to the spindle slot (7). The main control box (3) is equipped with a liquid infusion component. The end of the liquid infusion component away from the main control box (3) is installed on the two pull plates (4), and the liquid infusion component and the liquid injection component are connected to each other. The infusion unit includes a liquid tank (8) and a pressurization module (9). The liquid tank (8) is fixedly installed on the main control box (3). The pressurization module (9) is installed on the top of two sets of pull plates (4). The input end of the pressurization module (9) and the inside of the liquid tank (8) are connected by a connecting pipe. The output end of the pressurization module (9) passes through the pull plate (4) and is connected to the input channel of the infusion assembly. The liquid injection assembly includes a pressure receiving component, a transmission component, an auxiliary adjustment component, and a reverse thrust component. The pressure receiving component is installed on the pull plate (4) at the position corresponding to the main shaft slot (7). The transmission component is installed around the pull plate (4) at intervals at the position corresponding to the pressure receiving component. The output end of the transmission component and the pressurization module (9) are connected to each other. The auxiliary adjustment component is installed on the transmission component. The reverse thrust component is installed inside the transmission component at the end away from the pressure receiving component.

2. The locomotive axle box bearing puller device of claim 1, wherein: The pressure-bearing components include a shrinkage groove (10), a clamping plate (11), a seepage groove (12), and an infusion groove (14). The shrinkage groove (10) is an annular groove, located on the inner side of the pull plate (4) corresponding to the main shaft clamping groove (7). The clamping plate (11) is a triangular arc-shaped plate, and its inner diameter matches the inner diameter of the main shaft clamping groove (7). The infusion groove (14) is spaced around the clamping plate (11) near the pull plate (7). 4) On one side wall, the position of the infusion tank (14) corresponds to the position of the transmission component. The infusion tank (14) and the transmission component are connected to each other. The infusion tank (14) gradually narrows from the end near the transmission component to the end away from the transmission component. The end of the infusion tank (14) away from the transmission component passes through the inner diameter of the card plate (11) corresponding to the side wall. The inner diameter of the infusion tank (14) corresponding to the side wall is provided with a seepage groove (12) at the corresponding cone end position. The seepage groove (12) and the infusion tank (14) are connected to each other.

3. The locomotive axle box bearing puller device of claim 2, wherein: The transmission component includes a liquid rod (13), an auxiliary adjustment groove (15), a limiting cylinder (16), a transmission groove (20), and an inlet groove (22). The auxiliary adjustment groove (15) is located inside the pull plate (4), and the auxiliary adjustment groove (15) and the output end of the pressurization module (9) are interconnected. The liquid rod (13) is fixedly installed on the clamping plate (11) at the position corresponding to the inlet groove (14). The end of the liquid rod (13) away from the clamping plate (11) slides through the pull plate (4) and extends into the auxiliary adjustment groove (15). The limiting cylinder (16) is fixedly installed in the auxiliary adjustment groove (15). At the end of the liquid rod (13) away from the inner side, the end of the liquid rod (13) away from the clamping plate (11) extends into the limiting cylinder (16), and the inner diameter of the limiting cylinder (16) and the outer diameter of the end of the liquid rod (13) away from the clamping plate (11) are matched. The liquid inlet groove (22) is opened around the side wall of the liquid rod (13), and the transfer groove (20) is opened on the inner side of the liquid rod (13) corresponding to the position of the liquid inlet groove (22). One end of the liquid rod (13) is connected to the liquid inlet groove (22), and the other end of the liquid rod (13) is connected to the liquid delivery groove (14).

4. The locomotive axle box bearing puller device of claim 3, wherein: The auxiliary adjustment component includes an auxiliary plate (17), a limiting spring (18), and a blocking ring (19). The auxiliary plate (17) is fixedly installed on the side wall of the liquid rod (13) and is located in the auxiliary adjustment groove (15). The limiting spring (18) is fixedly installed on the inner side of the auxiliary adjustment groove (15) near the end of the clamping plate (11). The other end of the limiting spring (18) is installed on the auxiliary plate (17). The blocking ring (19) is fitted on the liquid rod (13) at the position corresponding to the liquid inlet groove (22). The outer end of the blocking ring (19) is installed in the auxiliary adjustment groove (15).

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