Axle box body disassembly device

By designing the locking and clamping mechanism of the axle box disassembly device, the problems of difficult axle box disassembly, low safety, and low efficiency in the existing technology have been solved, enabling a single person to quickly and safely disassemble the axle box.

CN224310542UActive Publication Date: 2026-06-02CRRC QINGDAO SIFANG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CRRC QINGDAO SIFANG CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing axle box disassembly process requires the use of an overhead crane for adjustment. This adjustment is time-consuming and requires high precision, poses safety hazards, can easily damage the axle box bearings, has low work efficiency, and is cumbersome, affecting product quality and safety reliability.

Method used

A disassembly device for axle box is designed, including a locking mechanism, a first support mechanism, and a clamping mechanism. The locking mechanism is connected to the guide column of the axle box, and the clamping mechanism clamps the end of the wheel pair. The disassembly of the axle box is achieved by using the fulcrum lever principle, which simplifies the operation process.

Benefits of technology

This technology enables a single person to disassemble the axle box, improving work efficiency, enhancing safety and reliability, avoiding damage to the axle box, simplifying operation steps, and increasing disassembly efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224310542U_ABST
    Figure CN224310542U_ABST
Patent Text Reader

Abstract

The utility model relates to axle box body using equipment field provides a kind of axle box body disassembling device, it includes: locking mechanism, first support mechanism and jacking mechanism. Locking mechanism is connected with the guide column of axle box body;Locking mechanism is located at the first end of first support mechanism, and first support mechanism is supported on axle box body, and second end extends to wheel pair axle end end portion;Jacking mechanism is located at the second end of first support mechanism, and the first end of jacking mechanism is jacked in wheel pair axle end end portion and is adapted to move along the direction of pushing out axle box body. The utility model provides a kind of axle box body disassembling device, and the above-mentioned axle box body disassembling operation can be completed by one person: locking mechanism is connected with the guide column of axle box body, jacking mechanism is attached in wheel pair axle end end portion, and the disassembly of axle box body can be realized by operating the movement of jacking mechanism;The device has small volume, simple operation, high work efficiency, safety and reliability.
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Description

Technical Field

[0001] This utility model relates to the field of axle box body equipment, and provides an axle box body disassembly device. Background Technology

[0002] In existing technology, when disassembling the axle box, first use a ratchet wrench to completely loosen the bolts on the front and rear covers, remove the front and rear covers, then use soft slings to suspend the axle box from both sides, and use an overhead crane to finely adjust the axle box to a horizontal position. After the position is leveled, two workers evenly and slowly pull the axle box outwards from both sides along the axial direction. When pulling the axle box out, two workers need to lift it out with the assistance of an overhead crane, and the axle box must be in a horizontal position when lifted out.

[0003] The disassembly process of the axle box requires adjustment using an overhead crane, which demands high precision and involves frequent and time-consuming adjustments. During operation, it's difficult to ensure even force application, potentially damaging the axle box bearings. The heavy weight of the axle box makes it easy to slip during dragging, damaging the axle box and shaft ends, affecting product quality. The excessive weight and large number of axle boxes can also cause injury to workers taking turns. This disassembly process is cumbersome, requiring repeated switching of various tools and simultaneous overhead crane operation, resulting in extremely low work efficiency. Furthermore, the short distance between the axle box and the horizontal base makes it impossible for the transmission structure to provide support.

[0004] It is evident that the aforementioned axle box disassembly device and usage method suffer from drawbacks such as difficulty in disassembly, low safety and reliability, and low work efficiency. Utility Model Content

[0005] This utility model provides a shaft box disassembly device to solve the defects of related technologies, such as difficulty in disassembly, low safety and reliability, and low working efficiency.

[0006] This utility model provides a device for disassembling axle box, comprising:

[0007] The locking mechanism is connected to the guide post of the axle box body;

[0008] A first support mechanism, wherein the locking mechanism is disposed at a first end of the first support mechanism, the first support mechanism is supported on the axle box body, and the second end of the first support mechanism extends to the end of the wheelset axle;

[0009] A clamping mechanism is provided at the second end of the first support mechanism, and the first end of the clamping mechanism is clamped to the end of the wheelset axle and adapted to move in the direction of pushing out the axle box.

[0010] In one embodiment of this utility model, the locking mechanism includes:

[0011] A locking sleeve is fixed to the first support mechanism and sleeved on the guide post of the axle box body;

[0012] A support pin is movably mounted on the first support mechanism and contacts the axle box. The locking sleeve and the support pin are used to form two-point support for the first support mechanism on the axle box.

[0013] An elastic element is fitted onto the support pin.

[0014] In one embodiment of this utility model, the first support mechanism includes:

[0015] The first support has a first extension and a second extension that are perpendicular to each other. The locking mechanism is located on the first extension and the tightening mechanism is located on the second extension.

[0016] In one embodiment of the present invention, the second extension has a threaded hole;

[0017] The clamping mechanism includes:

[0018] The tightening screw passes through the threaded hole and is threaded into the threaded hole;

[0019] A rotary bearing is located at the first end of the tightening screw near the shaft housing.

[0020] A mounting base is provided on the rotary bearing.

[0021] In one embodiment of this utility model, the first support mechanism further includes:

[0022] A handle is provided on the first extension and / or the second extension.

[0023] In one embodiment of this utility model, it further includes:

[0024] The second support mechanism is used to house the axle box body;

[0025] The moving mechanism is mounted on the second support mechanism.

[0026] In one embodiment of this utility model, the second support mechanism includes:

[0027] Support frame;

[0028] The first support module is located at the first end of the support frame and is connected to the first end of the axle box body;

[0029] The second support module is located at the second end of the support frame and is connected to the second end of the axle box.

[0030] In one embodiment of this utility model, the first support module includes:

[0031] The handwheel can be rotated to rotatably mount the support frame;

[0032] A worm gear unit, wherein the worm of the worm gear unit is connected to the rotating handwheel;

[0033] The lifting screw is connected to the turbine of the worm gear unit and can move up and down under the drive of the turbine;

[0034] The second support is located on the lifting screw and connected to the positioning node of the axle box.

[0035] In one embodiment of this utility model, the second support module includes:

[0036] A hydraulic handle is mounted on the support frame;

[0037] A hydraulic lifting unit is connected to the hydraulic handle;

[0038] The third support is located on the hydraulic lifting unit and is connected to the vertical shock absorber mounting base of the axle box.

[0039] In one embodiment of this utility model, the moving mechanism includes:

[0040] Multiple casters are rotatably mounted on the bottom of the second support mechanism.

[0041] This utility model provides an axle box disassembly device, comprising: a locking mechanism, a first support mechanism, and a clamping mechanism. The locking mechanism is connected to the guide post of the axle box; the locking mechanism is located at the first end of the first support mechanism, which supports the axle box, and the second end extends to the end of the wheelset axle; the clamping mechanism is located at the second end of the first support mechanism, and the first end of the clamping mechanism clamps against the end of the wheelset axle and is adapted to move in the direction of pushing out the axle box. This axle box disassembly device allows one person to complete the above-mentioned axle box disassembly operation: by connecting the locking mechanism to the guide post of the axle box, and by fitting the clamping mechanism against the end of the wheelset axle, the axle box can be disassembled by operating the movement of the clamping mechanism; this device is small in size, simple to operate, highly efficient, and safe and reliable. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a three-dimensional structural diagram of the shaft box top clamping part of the shaft box body disassembly device provided in one embodiment of the present invention.

[0044] Figure 2 This is a three-dimensional structural diagram of the shaft box top clamping part of the shaft box body disassembly device provided in one embodiment of the present invention.

[0045] Figure 3 This is a cross-sectional view of the shaft box top clamping part of the shaft box disassembly device provided in one embodiment of the present invention.

[0046] Figure 4 This is a first-view overall structural schematic diagram of the axle box body disassembly device provided in one embodiment of the present invention.

[0047] Figure 5 This is a schematic diagram of the overall structure of the axle box body disassembly device provided in one embodiment of the present invention from a second perspective.

[0048] Figure 6 This is a schematic diagram of the transmission relationship between the rotating handwheel and the worm gear unit in one embodiment of the axle box disassembly device provided by this utility model.

[0049] Figure label:

[0050] 1: Locking sleeve; 2: Support pin; 3: Elastic element; 4: First support seat; 5: Tightening screw; 6: Rotary bearing; 7: Tightening mounting seat; 8: Lifting handle; 9: Support frame; 10: Rotating handwheel; 11: Worm gear unit; 111: Worm; 112: Worm; 12: Lifting screw; 13: Second support seat; 14: Hydraulic handle; 15: Hydraulic lifting unit; 16: Third support seat; 17: Caster wheel; 18: Rotating handle; 19: Axle box; 20: Wheelset axle end. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0052] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this embodiment and simplifying the description, and are not intended to 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 this embodiment.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this embodiment, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this embodiment, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0055] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] like Figures 1 to 6 As shown, this utility model provides a shaft box disassembly device. The shaft box disassembly device consists of two parts: a shaft box clamping part and a supporting sliding part. The shaft box clamping part includes a locking mechanism, a first supporting mechanism, and a clamping mechanism.

[0057] The locking mechanism is connected to the guide post of the axle box 19; the locking mechanism is located at the first end of the first support mechanism, which is supported on the axle box 19, and the second end of the first support mechanism extends to the wheel axle end 20; the clamping mechanism is located at the second end of the first support mechanism, and the first end of the clamping mechanism clamps against the wheel axle end 20 and is adapted to move in the direction of pushing out of the axle box 19.

[0058] Specifically, the locking mechanism is used to cooperate with the guide post on the top of the axle box 19 so that the locking mechanism can lock with the axle box 19.

[0059] A first support mechanism is supported on the axle housing 19, with a first end extending to the top surface of the axle housing 19 and a second end extending to the wheel axle end 20 on the side. A locking mechanism is located at the first end of the first support mechanism, and a tightening mechanism is located at the second end of the first support mechanism.

[0060] The clamping mechanism can move in the direction of laterally pushing out the axle box 19. The movable end of the clamping mechanism is clamped against the end 20 of the wheelset axle. By operating the clamping mechanism, the axle box 19 is pushed outward.

[0061] In order to reduce the friction generated by pushing the axle housing 19, a second support mechanism is used to support the axle housing 19 at the bottom in the following embodiment, and a moving mechanism is configured to enable the axle housing 19 to slide outward under the action of the clamping mechanism. The axle housing 19 moves outward above the second support mechanism until the axle housing 19 is completely disassembled.

[0062] As can be seen, the axle box disassembly device described above allows one person to complete the disassembly of the axle box 19: the locking mechanism is connected to the guide post of the axle box 19, and the clamping mechanism is attached to the end 20 of the wheelset axle. By operating the movement of the clamping mechanism, the axle box 19 can be disassembled. This device is small in size, simple to operate, highly efficient, and safe and reliable. Moreover, the locking mechanism is the fulcrum connecting the disassembly device and the axle box 19, and the disassembly requirements of the axle box 19 are achieved through the fulcrum lever principle and force transmission function. In addition, the locking mechanism and the clamping mechanism are connected through the first support mechanism, and the size design of the first support mechanism can meet the disassembly needs of axle box 19 of different sizes and specifications.

[0063] This utility model provides an axle box disassembly device, comprising: a locking mechanism, a first support mechanism, and a tightening mechanism. The locking mechanism is connected to the guide post of the axle box 19; the locking mechanism is located at the first end of the first support mechanism, which supports the axle box 19, and the second end extends to the wheelset axle end 20; the tightening mechanism is located at the second end of the first support mechanism, and the first end of the tightening mechanism presses against the wheelset axle end 20 and is adapted to move in the direction of pushing out the axle box 19. This utility model provides an axle box disassembly device that allows one person to complete the above-mentioned axle box 19 disassembly operation: by connecting the locking mechanism to the guide post of the axle box 19, and by fitting the tightening mechanism against the wheelset axle end 20, the axle box 19 can be disassembled by operating the movement of the tightening mechanism; this device is small in size, simple to operate, highly efficient, and safe and reliable.

[0064] In one embodiment of this utility model, the locking mechanism includes: a locking sleeve 1, a support pin 2, and an elastic element 3. The locking sleeve 1 is fixed to the first support mechanism and sleeved on the guide post of the axle box 19; the support pin 2 is movably mounted on the first support mechanism and contacts the axle box 19, and the locking sleeve 1 and the support pin 2 are used to form two-point support for the first support mechanism on the axle box 19; the elastic element 3 is sleeved on the support pin 2. Specifically, the locking sleeve 1 is a ring-shaped structure that can be fitted onto the guide post at the top of the axle box 19 to position it. The elastic element 3 can be a spring and is fitted onto the outside of the support locking pin. Through the cooperation of the elastic element 3 and the support locking pin, and by passing through the first support structure, it cooperates with the locking sleeve 1 to achieve two-point support between the first support structure and the axle box 19. Furthermore, through the cooperation of the support pin 2 and the elastic element 3, the first support structure can achieve floating support at this position. The spring can be compressed by manually pressing down, causing the support pin 2 to move up and down.

[0065] In the above embodiment, the support pin 2 and the elastic element 3 are preferably connected as follows: the top surface of the support pin 2 is located above the first support mechanism, the bottom surface passes through the first support mechanism, and the elastic element 3 is supported between the first support mechanism and the bottom surface of the support pin 2, providing the restoring force for the lifting and lowering movement of the support pin 2.

[0066] In one embodiment of this utility model, the first support mechanism includes: a first support base 4, having a first extension and a second extension perpendicular to each other, a locking mechanism disposed on the first extension, and a tightening mechanism disposed on the second extension. Specifically, as... Figure 1 As shown, the first support 4 consists of three parts: a first extension, a connecting part, and a second extension. The first extension and the second extension are perpendicular to each other, such that the first extension extends to the top of the axle box 19. Through the bend of the connecting part, the second extension extends to the wheel axle end 20 on the side. The connecting part connects the first extension and the second extension, so that the first support 4 has an overall "¬" structure.

[0067] In one embodiment of this utility model, the second extension has a threaded hole. The tightening mechanism includes a tightening screw 5, a rotary bearing 6, and a tightening mounting seat 7. The tightening screw 5 passes through the threaded hole and is threadedly connected to it; the rotary bearing 6 is located at the first end of the tightening screw 5 near the axle housing 19; the tightening mounting seat 7 is located on the rotary bearing 6. Specifically, the tightening screw 5 is threadedly connected to the threaded hole of the second extension, and its movement towards or away from the axle housing 19 can be achieved by rotating the tightening screw 5. By rotating the tightening screw 5, the rotary bearing 6 and the tightening mounting seat 7 are pressed against the wheelset axle end 20. By arranging the rotary bearing 6, the rotational movement between the tightening screw 5 and the tightening mounting seat 7 is isolated, and only the horizontal movement (i.e., the movement towards or away from the axle housing 19) is transmitted to the tightening mounting seat 7, thus avoiding damage to the wheelset axle end 20 caused by the rotation of the tightening mounting seat 7. Preferably, a rotating handle 18 is installed at the outer end of the tightening screw 5, so that the worker can rotate the tightening screw 5 by turning the rotating handle 18.

[0068] In one embodiment of this utility model, the first support mechanism further includes: a lifting handle 8, disposed on the first extension and / or the second extension. In such a way... Figure 1 In the structure shown, the extraction handle 8 is preferably located at the top of the first extension to facilitate the extraction of the entire device by the operator.

[0069] In one embodiment of this utility model, the supporting sliding portion includes: a second supporting mechanism and a moving mechanism. For example... Figure 4 and Figure 5As shown, the second support mechanism is located at the bottom of the axle box 19 and is used to place the axle box 19; the moving mechanism is provided on the second support mechanism, which can enable the second support mechanism to drive the axle box 19 to move and support.

[0070] In one embodiment of this utility model, the second support mechanism includes: a support frame 9, a first support module, and a second support module. The first support module is disposed at the first end of the support frame 9 and connected to the first end of the axle box 19; the second support module is disposed at the second end of the support frame 9 and connected to the second end of the axle box 19. In this embodiment, the support frame 9 is provided with two support modules, namely the first support module and the second support module, which support the axle box 19.

[0071] In one embodiment of this utility model, such as Figures 4 to 6 As shown, the first support module includes: a rotating handwheel 10, a worm gear unit 11, a lifting screw 12, and a second support seat 13. The rotating handwheel 10 is rotatably mounted on the support frame 9; the worm 112 of the worm gear unit 11 is connected to the rotating handwheel 10; the lifting screw 12 is connected to the worm gear 111 of the worm gear unit 11 and can move up and down under the drive of the worm gear 111; the second support seat 13 is mounted on the lifting screw 12 and connected to the positioning node of the axle box 19. Specifically, by manually rotating the rotating handwheel 10, the worm of the worm gear unit 11 is rotated, the worm meshes with the worm gear, and the worm gear rotates horizontally. The lifting screw 12 is threadedly connected to the worm gear, and the rotation of the worm gear drives the lifting screw 12 to move up and down, thereby driving the second support seat 13 to move up and down. The second support seat 13 is connected to the axle box 19 through the positioning node, realizing the liftable support of one end of the axle box 19.

[0072] In one embodiment of this utility model, such as Figure 4 and Figure 5 As shown, the second support module includes a hydraulic handle 14, a hydraulic lifting unit 15, and a third support base 16. The hydraulic handle 14 is mounted on the support frame 9; the hydraulic lifting unit 15 is connected to the hydraulic handle 14; the third support base 16 is mounted on the hydraulic lifting unit 15 and connected to the vertical shock absorber mounting seat of the axle box 19. Specifically, by operating the hydraulic handle 14, the hydraulic lifting unit 15 is driven to move up and down, which in turn drives the third support base 16 to move up and down. The third support base 16 is connected to the vertical shock absorber mounting seat of the axle box 19, realizing the liftable support of the second end of the axle box 19.

[0073] In one embodiment of this utility model, the moving mechanism includes a plurality of casters 17, rotatably disposed at the bottom of the second support mechanism. Preferably, as shown... Figure 4 and Figure 5As shown, four casters 17 are arranged to ensure that the support frame 9 can move in multiple directions.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for disassembling axle box, characterized in that, include: The locking mechanism is connected to the guide post of the axle box (19); The first support mechanism is provided at the first end of the first support mechanism, the first support mechanism is supported on the axle box (19), and the second end of the first support mechanism extends to the end of the wheelset axle (20). A clamping mechanism is provided at the second end of the first support mechanism. The first end of the clamping mechanism is clamped to the end of the wheelset axle (20) and is adapted to move in the direction of the ejector axle housing (19).

2. The axle box disassembly device according to claim 1, characterized in that, The locking mechanism includes: The locking sleeve (1) is fixed to the first support mechanism and sleeved on the guide post of the axle box body (19); The support pin (2) is movably mounted on the first support mechanism and contacts the axle box (19). The locking sleeve (1) and the support pin (2) are used to form two-point support for the first support mechanism on the axle box (19). The elastic element (3) is sleeved on the support pin (2).

3. The axle box disassembly device according to claim 1, characterized in that, The first support mechanism includes: The first support (4) has a first extension and a second extension that are perpendicular to each other, the locking mechanism is located on the first extension and the tightening mechanism is located on the second extension.

4. The axle box disassembly device according to claim 3, characterized in that, The second extension has a threaded hole; The clamping mechanism includes: Tighten the screw (5) through the threaded hole and thread it into the threaded hole; A rotary bearing (6) is located at the first end of the tightening screw (5) near the shaft housing (19); The mounting base (7) is mounted on the rotary bearing (6).

5. The axle box disassembly device according to claim 3, characterized in that, The first support mechanism also includes: Extraction handle (8) is provided on the first extension and / or the second extension.

6. The axle box disassembly device according to any one of claims 1 to 5, characterized in that, Also includes: The second support mechanism is used to place the axle box body (19). The moving mechanism is mounted on the second support mechanism.

7. The axle box disassembly device according to claim 6, characterized in that, The second support mechanism includes: Support frame (9); The first support module is located at the first end of the support frame (9) and is connected to the first end of the axle box (19); The second support module is located at the second end of the support frame (9) and is connected to the second end of the axle box (19).

8. The axle box disassembly device according to claim 7, characterized in that, The first support module includes: The handwheel (10) is rotatably mounted on the support frame (9). A worm gear unit (11), wherein the worm (112) of the worm gear unit (11) is connected to the rotating handwheel (10); The lifting screw (12) is connected to the turbine (111) of the worm gear unit (11) and can move up and down under the drive of the turbine (111); The second support (13) is located on the lifting screw (12) and is connected to the positioning node of the axle box (19).

9. The axle box disassembly device according to claim 7, characterized in that, The second support module includes: A hydraulic handle (14) is mounted on the support frame (9); A hydraulic lifting unit (15) is connected to the hydraulic handle (14); The third support (16) is located on the hydraulic lifting unit (15) and is connected to the vertical shock absorber mounting seat of the axle box body (19).

10. The axle box body disassembly device according to claim 6, characterized in that, The moving mechanism includes: Multiple casters (17) are rotatably mounted on the bottom of the second support mechanism.