Urban rail vehicle wheel set quick replacement tool

Abstract

The utility model is suitable for the technical field of urban rail vehicle maintenance and repair, provides a kind of urban rail vehicle wheel set quick replacement tool, comprising: device ontology;The both ends of the both sides of the device ontology top are equipped with fixed track, the mobile track is installed above the mobile seat, the removal mechanism is installed in the inner wall of device ontology in the mobile seat one side, the second hydraulic jack is installed in the device ontology inside in the both sides of the both ends of the mobile groove, the top of the second hydraulic jack is all connected with support seat, the wheel set ontology is installed above the mobile track, and the adsorption mechanism is installed in the support seat inside.The urban rail vehicle wheel set quick replacement tool provided by the scheme utilizes integrated lifting and removal system, through the collaborative lifting of first hydraulic jack and second hydraulic jack, the accurate transmission of cooperation removal mechanism is realized, the quick disassembly of wheel set is realized, and the replacement efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of urban rail vehicle maintenance and repair technology, specifically a tool for quick wheel replacement of urban rail vehicles. Background Technology

[0002] As a crucial component of modern urban public transportation, urban rail vehicles' operational safety and maintenance efficiency directly impact the normal operation of urban traffic. Wheelsets, as key components of the rail vehicle's running gear, experience wear and damage during long-term operation, requiring regular inspection and replacement. Currently, traditional wheelset replacement primarily involves manually removing the wheelsets after jacking the car body. This method has several significant drawbacks: low operational efficiency; the use of multiple independent jacks for coordinated lifting is cumbersome and lacks synchronization; wheelset removal relies heavily on manual operation, which is time-consuming and labor-intensive; the lack of effective displacement monitoring and synchronization control during lifting makes the car body prone to instability due to asynchronous lifting; insufficient positioning accuracy; the lack of precise guiding and positioning mechanisms during wheelset removal easily leads to jamming and misalignment, affecting the smooth progress of the replacement operation; and poor fixation performance. Therefore, this case study was developed to address these issues. Utility Model Content

[0003] This invention provides a quick wheel replacement tool for urban rail vehicles, aiming to solve the problems of low replacement efficiency and poor operational safety of currently used quick wheel replacement tools for urban rail vehicles.

[0004] This utility model is implemented as follows: a quick wheelset replacement tool for urban rail vehicles includes: a device body; a control panel installed on the outer wall of one end of the device body; fixed rails installed at both ends of the top of the device body; a moving groove provided on the inner side of the device body, and a moving seat installed on the inner side of the moving groove; a moving rail installed above the moving seat; first hydraulic jacks installed inside both ends of the moving seat, with the tops of the first hydraulic jacks connected to the moving rails; and moving wheels installed at the four corners below the moving seat; a removal mechanism installed on the inner wall of the device body on one side of the moving seat, the removal mechanism being used to move the moving seat back and forth; second hydraulic jacks installed inside the device body at both ends of the moving groove, the tops of the second hydraulic jacks being connected to support seats; a wheelset body installed above the moving rails, and a vehicle body installed above the wheelset body; and an adsorption mechanism installed inside the support seats, the adsorption mechanism being used to adsorb and reinforce the vehicle body.

[0005] Preferably, the removal mechanism includes: a lead screw installed on the inner wall of the device body on one side of the movable seat, one end of the lead screw being connected to a servo motor, a movable sleeve being installed on the outer wall of the lead screw, and one side of the movable sleeve being connected to the outer wall of the movable seat.

[0006] Preferably, an internal thread is provided on the inner wall of the movable sleeve, and a threaded connection structure is formed between the movable sleeve and the lead screw.

[0007] Preferably, a limiting groove is provided on the inner wall of one side of the moving groove, and the outer wall of the other side of the moving seat is movably connected to the limiting groove through a limiting block.

[0008] Preferably, the oil pipes installed on the outer walls below the first hydraulic jack and the second hydraulic jack are equipped with flow valves on their outer walls, and displacement sensors are installed on the outer walls above the first hydraulic jack and the second hydraulic jack.

[0009] Preferably, the adsorption mechanism includes: a vacuum pump installed inside the support base, with an air pipe connected to the top of the vacuum pump, and suction cups uniformly connected to one end of the air pipe.

[0010] Preferably, the anti-slip pad is connected to the inner wall of the support base, and both the anti-slip pad and the support base are L-shaped in the side view.

[0011] Compared with related technologies, the quick wheel set replacement tool for urban rail vehicles provided by this utility model has the following advantages:

[0012] 1. By utilizing an integrated lifting and removal system, the wheelset can be quickly disassembled and assembled through the coordinated lifting of the first and second hydraulic jacks and the precise transmission of the removal mechanism, which greatly improves the replacement efficiency.

[0013] 2. By employing multiple safety mechanisms, the vacuum adsorption of the adsorption mechanism and the clamping and fixing of the "L"-shaped anti-slip mat, combined with the real-time monitoring of the displacement sensor, effectively prevents the vehicle from shifting during operation, significantly improving operational safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the orthographic section of the main body of the device of this utility model;

[0015] Figure 2 This is a side sectional view of the movable seat of this utility model;

[0016] Figure 3 This is a top-section structural diagram of the removal mechanism of this utility model;

[0017] Figure 4 This is a cross-sectional view of the adsorption mechanism of this utility model.

[0018] In the diagram: 1. Fixed track; 2. Device body; 3. Displacement sensor; 4. Control panel; 5. Moving slot; 6. Moving wheel; 7. First hydraulic jack; 8. Removal mechanism; 801. Lead screw; 802. Servo motor; 803. Moving sleeve; 9. Oil pipe; 10. Flow valve; 11. Second hydraulic jack; 12. Support base; 13. Moving track; 14. Wheelset body; 15. Vehicle body; 16. Moving seat; 17. Anti-slip mat; 18. Adsorption mechanism; 1801. Vacuum pump; 1802. Air pipe; 1803. Suction cup. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] Example 1

[0022] A preferred embodiment of the quick-change tool for urban rail vehicle wheelsets provided by this utility model is, for example... Figure 1 , Figure 2 and Figure 3As shown: A quick wheelset replacement tool for urban rail vehicles includes: a device body 2; a control panel 4 installed on the outer wall of one end of the device body 2; fixed rails 1 installed at both ends of the top of the device body 2; a moving groove 5 provided on the inner side of the device body 2; a moving seat 16 installed on the inner side of the moving groove 5; a moving rail 13 installed above the moving seat 16; first hydraulic jacks 7 installed inside both ends of the moving seat 16; the top ends of the first hydraulic jacks 7 connected to the moving rail 13; and four corners below the moving seat 16 are equipped with... There are movable wheels 6; a removal mechanism 8 installed on the inner wall of the device body 2 on one side of the movable seat 16, which is used to move the movable seat 16 back and forth; second hydraulic jacks 11 installed inside the device body 2 at both ends of the movable groove 5, and the top of each second hydraulic jack 11 is connected to a support seat 12; a wheel set body 14 is installed above the movable track 13, and a vehicle body 15 is installed above the wheel set body 14; an adsorption mechanism 18 installed inside the support seat 12, which is used to adsorb and reinforce the vehicle body 15.

[0023] It should be noted that the existing technology for quick wheelset replacement in urban rail vehicles has the following drawbacks: low operational efficiency, the use of multiple independent jacks for coordinated lifting, cumbersome operation, poor synchronization, and the wheelset removal mainly relies on manual operation, which is time-consuming and labor-intensive. The lack of effective displacement monitoring and synchronous control during the lifting process makes the vehicle body prone to instability due to asynchronous lifting. At the same time, the positioning accuracy is insufficient, and the lack of a precise guiding and positioning mechanism during the wheelset removal process makes it prone to jamming, deflection and other problems, affecting the smooth progress of the replacement operation. In addition, the fixation effect is not good.

[0024] In this embodiment, during the preparation phase, the vehicle body 15 is positioned at the replacement station via the fixed track 1 and the moving track 13, with the moving seat 16 in its initial position. Then, the second hydraulic jack 11 lifts the vehicle body 15 via the support seat 12. Simultaneously, the vacuum pump 1801 of the adsorption mechanism 18 is activated, adsorbing the bottom of the vehicle body via the suction cup 1803, forming multiple fixations with the anti-slip pad 17. Then, the first hydraulic jack 7 descends to separate the wheelset body 14 from the vehicle. The servo motor 802 of the removal mechanism 8 drives the lead screw 801, moving the moving seat 16 along the moving groove 5 to complete the disassembly of the old wheelset and the installation of the new wheelset. The moving seat 16 is reset by the reverse operation of the removal mechanism 8. The first hydraulic jack 7 lifts the wheelset body 14 to the working position, and the second hydraulic jack 11 slowly descends to complete the wheelset replacement operation. Throughout the process, the displacement sensor 3 monitors the lifting displacement in real time, and the flow valve 10 precisely controls the hydraulic speed to ensure safe and reliable operation.

[0025] In a further preferred embodiment of the present invention, the removal mechanism 8 includes: a lead screw 801 installed on the inner wall of the device body 2 on one side of the movable seat 16, one end of the lead screw 801 being connected to a servo motor 802, and a movable sleeve 803 being installed on the outer wall of the lead screw 801, with one side of the movable sleeve 803 being connected to the outer wall of the movable seat 16.

[0026] In this embodiment, the removal mechanism 8, through the cooperation of the lead screw 801 and the servo motor 802, realizes the smooth and precise movement of the movable seat 16 in the movable groove 5. Specifically, the servo motor 802 drives the lead screw 801 to rotate, which drives the movable sleeve 803, which is threaded to it, to move along the axial direction of the lead screw 801, thereby pushing the movable seat 16 to move back and forth in the movable groove 5. This structure not only has high transmission efficiency and accurate positioning, but also can effectively bear the load during the wheelset replacement process, ensuring the stability and controllability of the movement process, and providing reliable movement support for the rapid disassembly and assembly of the wheelset.

[0027] In a further preferred embodiment of this utility model, an internal thread is provided on the inner wall of the movable sleeve 803, and a threaded connection structure is formed between the movable sleeve 803 and the lead screw 801.

[0028] In this embodiment, the internal thread on the inner wall of the movable sleeve 803 and the external thread on the outer wall of the lead screw 801 cooperate to form a stable and reliable threaded connection structure. This structure can efficiently convert the rotational motion output by the servo motor 802 into the linear motion of the movable sleeve 803, resulting in smooth transmission and high precision. The threaded connection has a self-locking characteristic, which can reliably lock at any position, effectively preventing the equipment from accidentally shifting under load. This ensures the accuracy and safety of the positioning of the movable seat 16 during wheelset replacement. At the same time, this connection method has a simple structure, strong durability, and is easy to maintain, making it suitable for long-term stable operation in high-frequency use scenarios of rail vehicle maintenance.

[0029] In a further preferred embodiment of the present invention, a limiting groove is provided on the inner wall of one side of the movable groove 5, and the outer wall of the other side of the movable seat 16 is movably connected to the limiting groove through a limiting block.

[0030] In this embodiment, the limiting groove on the inner wall of one side of the moving slot 5 cooperates with the limiting block on the outer wall of the moving seat 16 to form a movable connection structure. This structure can effectively limit the lateral displacement and deflection of the moving seat 16 in the horizontal plane, ensuring that it moves smoothly only along the preset straight line direction. Through this precise guidance, not only is the transmission efficiency between the moving seat 16 and the removal mechanism 8 improved, but also the equipment jamming or wear problems caused by the deviation of the movement trajectory are avoided, further enhancing the stability and operational safety of the wheelset replacement process.

[0031] In a further preferred embodiment of this utility model, an oil pipe 9 is installed on the outer wall below the first hydraulic jack 7 and the second hydraulic jack 11, and a flow valve 10 is installed on the outer wall of the oil pipe 9. A displacement sensor 3 is installed on the outer wall above the first hydraulic jack 7 and the second hydraulic jack 11.

[0032] In this embodiment, by setting an oil pipe 9 on the outer wall below the first hydraulic jack 7 and the second hydraulic jack 11 and installing a flow valve 10 on its outer wall, precise control of the hydraulic system oil supply is achieved. The flow valve 10 can adjust the flow rate of hydraulic oil entering the jack, thereby controlling the lifting speed of the jack and ensuring that the lifting process is stable and controllable. At the same time, the displacement sensor 3 installed on the outer wall above the jack can monitor the extension and retraction displacement of the jack in real time, providing accurate feedback signals to the control system. This combination of hydraulic control and displacement monitoring makes the lifting operation of the vehicle body 15 during wheelset replacement more precise and safe, effectively avoiding equipment damage or safety accidents caused by asynchronous lifting or excessive displacement.

[0033] Example 2

[0034] Based on Embodiment 1, a preferred embodiment of the quick-change tool for urban rail vehicle wheelsets provided by this utility model is, for example... Figure 1 , Figure 2 and Figure 4 As shown: The adsorption mechanism 18 includes: a vacuum pump 1801 installed inside the support base 12, with air pipes 1802 connected to the top of the vacuum pump 1801, and suction cups 1803 uniformly connected to one end of the air pipes 1802.

[0035] In this embodiment, the adsorption mechanism 18 generates negative pressure through the vacuum pump 1801 installed inside the support base 12, which is transmitted to the evenly distributed suction cups 1803 via the air pipe 1802, forming a stable and reliable vacuum adsorption system. When the support base 12 rises with the second hydraulic jack 11 and contacts the bottom of the vehicle body 15, the suction cups 1803 firmly adsorb the vehicle body structure under the action of negative pressure, effectively enhancing the stability of the vehicle body 15 during wheelset replacement and preventing lateral displacement or accidental shaking. This adsorption mechanism 18 not only improves operational safety, but its evenly distributed suction cups 1803 design can also adapt to different structural features of the bottom of the vehicle body, ensuring a comprehensive and reliable fixing effect under various working conditions.

[0036] In a further preferred embodiment of the present invention, the anti-slip pad 17 is connected to the inner wall of the support base 12, and both the anti-slip pad 17 and the support base 12 are L-shaped in the side view.

[0037] In this embodiment, the anti-slip pad 17 connected to the inner wall of the support base 12 together with the support base 12 forms an "L"-shaped side view structure. The anti-slip pad 17 is made of a high friction coefficient material, which can provide reliable static friction when the support base 12 contacts the bottom of the vehicle body 15, effectively preventing the vehicle from sliding or displacing horizontally during lifting and wheel replacement. At the same time, the "L"-shaped structure design allows the anti-slip pad 17 to cover the horizontal and vertical contact surfaces of the bottom of the vehicle at the same time, forming a clamp-type anti-slip protection, further enhancing the stability and safety of the support fixation. This design effectively makes up for the shortcomings of pure adsorption fixation and provides multiple safety guarantees for the vehicle.

[0038] In summary, the removal mechanism 8, through the transmission of the lead screw 801 and the limiting and guiding structure, ensures the smooth removal and repositioning of the moving seat 16 and the wheelset body 14, with precise and reliable transmission. The hydraulic jack system, including the first hydraulic jack 7 and the second hydraulic jack 11, works with the flow valve 10 and the displacement sensor 3 to achieve controllable lifting and support of the vehicle body 15, ensuring a smooth and synchronous operation. The adsorption mechanism 18 utilizes the negative pressure of the vacuum pump 1801 and the multi-point arrangement of the suction cups 1803 to effectively adsorb and fix the vehicle body, preventing the vehicle from shifting or shaking during operation. The anti-slip pad structure 17, with its "L"-shaped wrapping and high-friction design, further enhances the stability of the support seat 12, forming multiple layers of protection. The coordinated operation of all mechanisms significantly improves the efficiency, accuracy, and safety of wheelset replacement, making it suitable for the high-frequency maintenance needs of urban rail vehicles.

[0039] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0040] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A quick wheelset replacement tool for urban rail vehicles, characterized in that, include: Device body(2); A control panel (4) is installed on the outer wall of one end of the device body (2). Fixed rails (1) are installed at both ends of the top of the device body (2). A moving groove (5) is provided on the inner side of the device body (2), and a moving seat (16) is installed on the inner side of the moving groove (5). A moving rail (13) is installed above the moving seat (16). First hydraulic jacks (7) are installed inside both ends of the moving seat (16), and the top of the first hydraulic jacks (7) is connected to the moving rail (13). Moving wheels (6) are installed at the four corners below the moving seat (16). The removal mechanism (8) is installed on the inner wall of the device body (2) on one side of the movable seat (16). The removal mechanism (8) is used to move the movable seat (16) back and forth. The second hydraulic jack (11) is installed inside the device body (2) at both ends of the moving groove (5). The top of the second hydraulic jack (11) is connected to the support seat (12). The wheel set body (14) is installed above the moving track (13), and the vehicle body (15) is installed above the wheel set body (14). An adsorption mechanism (18) is installed inside the support (12), which is used to adsorb and reinforce the vehicle body (15).

2. The quick-change tool for urban rail vehicle wheelsets according to claim 1, characterized in that, The removal mechanism (8) includes: A lead screw (801) is installed on the inner wall of the device body (2) on one side of the movable seat (16). One end of the lead screw (801) is connected to a servo motor (802). A movable sleeve (803) is installed on the outer wall of the lead screw (801), and one side of the movable sleeve (803) is connected to the outer wall of the movable seat (16).

3. The quick-change tool for urban rail vehicle wheelsets according to claim 2, characterized in that, An internal thread is provided on the inner wall of the movable sleeve (803), and a threaded connection structure is formed between the movable sleeve (803) and the lead screw (801).

4. The quick-change tool for urban rail vehicle wheelsets according to claim 1, characterized in that, A limiting groove is provided on one side of the inner wall of the movable groove (5), and the other side of the outer wall of the movable seat (16) is movably connected to the limiting groove through a limiting block.

5. A quick wheelset replacement tool for urban rail vehicles according to claim 1, characterized in that, Oil pipes (9) are installed on the outer walls below the first hydraulic jack (7) and the second hydraulic jack (11). Flow valves (10) are installed on the outer walls of the oil pipes (9). Displacement sensors (3) are installed on the outer walls above the first hydraulic jack (7) and the second hydraulic jack (11).

6. A quick wheelset replacement tool for urban rail vehicles according to claim 1, characterized in that, The adsorption mechanism (18) includes: A vacuum pump (1801) is installed inside the support base (12). The top of the vacuum pump (1801) is connected to an air pipe (1802). One end of the air pipe (1802) is uniformly connected to a suction cup (1803).

7. A quick wheelset replacement tool for urban rail vehicles according to claim 1, characterized in that, An anti-slip pad (17) is connected to the inner wall of the support base (12). Both the anti-slip pad (17) and the support base (12) are L-shaped in side view.

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