Urban rail transit vehicle bogie rapid maintenance tool
By designing a motor-driven rotating rod and telescopic rod to adjust the height and angle of the placement plate, and combining it with a clamping mechanism, the problem of inconvenient adjustment of existing tooling was solved, thereby improving the maintenance efficiency and stability of urban rail transit vehicle bogies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN WUYUE TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-21
AI Technical Summary
Existing quick-repair tools cannot be adjusted quickly and easily in terms of height and angle, resulting in low repair efficiency.
A rapid maintenance fixture for urban rail transit vehicle bogies, comprising a maintenance mechanism and a clamping mechanism, was designed. The height and angle of the placement plate are adjusted by using a motor-driven rotating rod and a telescopic rod, and the bogie is fixed by the clamping mechanism through a bidirectional threaded rod and a pressing plate.
It enables quick and convenient adjustment of the placement plate, improves maintenance efficiency, enhances the stability and versatility of clamping, adapts to different models and shapes of bogies, and avoids maintenance inconvenience caused by angle limitations and displacement.
Smart Images

Figure CN224527152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle bogie maintenance technology, specifically a quick maintenance tool for urban rail transit vehicle bogies. Background Technology
[0002] Urban rail transit, as an efficient, convenient, and green mode of public transportation, is developing rapidly in major cities. Numerous subway and light rail lines are constantly opening and operating. As a core and critical component of urban rail transit vehicles, the bogie requires frequent maintenance, necessitating the use of rapid maintenance tools.
[0003] When using existing quick-repair fixtures, the vehicle bogie is usually placed on the fixture, clamped and fixed before maintenance. However, in actual use, it is not possible to quickly and easily adjust the height of the fixture or the angle of the vehicle bogie, thus reducing the efficiency of the maintenance fixture.
[0004] Therefore, we urgently need to provide a quick maintenance tool for urban rail transit vehicle bogies. Utility Model Content
[0005] The purpose of this invention is to provide a quick maintenance tool for urban rail transit vehicle bogies to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick maintenance fixture for urban rail transit vehicle bogies, comprising a base plate and casters, wherein a maintenance structure is provided above the base plate; The maintenance structure includes a maintenance mechanism and a clamping mechanism; The maintenance mechanism includes a motor, a rotating rod, a support plate, a rotating rod, and a limiting plate. The output end of the motor is connected to the bottom of the rotating rod, the top of the rotating rod is connected to the bottom of the support plate, the bottom of the support plate is connected to the top of the rotating rod, and the bottom of the rotating rod is slidably connected to the inner side of the limiting plate. An electric telescopic rod is fixedly installed on the top of the support plate, a placement plate is fixedly installed on the top of the electric telescopic rod, and a telescopic rod is fixedly installed on the bottom of the placement plate.
[0007] A further improvement is that there are six rotating rods, which are symmetrically distributed on the bottom of the support plate. The top of the limiting plate has a rotating groove, and the bottom of the rotating rod is slidably connected to the inner wall of the rotating groove. This allows for quick and convenient adjustment of the vehicle bogie angle, thereby enabling better maintenance work.
[0008] A further improvement is that there are two telescopic rods, which are symmetrically distributed at the bottom of the placement plate. The bottom of the telescopic rods is connected to the top of the support plate, which can effectively increase the stability of the placement plate when it moves, and thus enable better use.
[0009] A further improvement is that the clamping mechanism includes a bidirectional threaded rod, a movable plate, a clamping plate, a guide rod, and a pressing plate. The outer wall of the bidirectional threaded rod is threadedly connected to the inner wall of the movable plate. The top of the movable plate is connected to the bottom of the clamping plate. The inner wall of the clamping plate is connected to both ends of the guide rod. The outer wall of the guide rod is slidably connected to the inner wall of the pressing plate.
[0010] A further improvement is that there are two movable plates, which are symmetrically distributed on the top of the placement plate. The top of the placement plate is provided with an adjustment groove, and the bottom of the movable plate is slidably connected to the inner wall of the adjustment groove. This allows for the quick clamping and fixing of bogies of different sizes, thus enabling better use.
[0011] A further improvement is that a movable groove is provided on one side of the clamping plate, one end of the extrusion plate is slidably connected to the inner wall of the movable groove, and a spring is fixedly installed between one side of the extrusion plate and the inner wall of the movable groove, so as to further clamp and fix the vehicle bogie, thereby enabling better maintenance work.
[0012] A further improvement is that the bottom of the base plate is connected to the top of the caster wheel, the bottom of the base plate is connected to the top of the motor, and the inner wall of the placement plate is rotatably connected to one end of the bidirectional threaded rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This rapid maintenance fixture for urban rail transit vehicle bogies allows for convenient height adjustment of the placement plate via an electric telescopic rod. This enables the placement plate to be quickly moved to the bogie location without the need for manual handling or adjustment, significantly reducing preparation time and facilitating faster maintenance. The motor-driven rotating rod rotates, causing the support plate and placement plate to rotate as well. The rotating rod slides within the limit plate, ensuring smooth rotation. The fixture allows for quick and convenient adjustment of the bogie angle, enabling maintenance personnel to inspect the bogie from different angles, avoiding inconvenience caused by angle limitations.
[0014] 2. This rapid maintenance fixture for urban rail transit vehicle bogies uses a clamping mechanism to clamp and fix bogies of different sizes, improving the versatility of the fixture and reducing the hassle of changing to special fixtures due to different bogie models. The extrusion plate not only firmly clamps the bogie but also adapts to bogies of different shapes, further improving the reliability and stability of the clamping and ensuring that the bogie does not shift during maintenance. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the maintenance mechanism of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the maintenance mechanism of this utility model. Figure 2 ; Figure 5 This is a schematic diagram of the clamping mechanism of this utility model.
[0016] In the diagram: 1. Base plate; 2. Casters; 3. Maintenance mechanism; 301. Motor; 302. Rotating rod; 303. Bearing plate; 304. Rotating rod; 305. Limiting plate; 306. Electric telescopic rod; 307. Placement plate; 308. Telescopic rod; 4. Clamping mechanism; 401. Bidirectional threaded rod; 402. Moving plate; 403. Clamping plate; 404. Guide rod; 405. Extrusion plate. Detailed Implementation
[0017] 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.
[0018] Please see Figures 1-5 This utility model provides a technical solution: Example 1: A quick maintenance tool for urban rail transit vehicle bogies includes a base plate 1 and casters 2, with a maintenance structure provided on the top of the base plate 1. The maintenance structure includes a maintenance mechanism 3 and a clamping mechanism 4; The maintenance mechanism 3 includes a motor 301, a rotating rod 302, a bearing plate 303, a rotating rod 304, and a limiting plate 305. The output end of the motor 301 is connected to the bottom of the rotating rod 302. The top of the rotating rod 302 is connected to the bottom of the bearing plate 303. The bottom of the bearing plate 303 is connected to the top of the rotating rod 304. The bottom of the rotating rod 304 is slidably connected to the inner side of the limiting plate 305. An electric telescopic rod 306 is fixedly installed on the top of the bearing plate 303. A placement plate 307 is fixedly installed on the top of the electric telescopic rod 306. A telescopic rod 308 is fixedly installed on the bottom of the placement plate 307. In this embodiment, there are six rotating rods 304, which are symmetrically distributed on the bottom of the bearing plate 303. The top of the limiting plate 305 is provided with a rotating groove, and the bottom of the rotating rods 304 is slidably connected to the inner wall of the rotating groove, so that the angle of the vehicle bogie can be adjusted quickly and conveniently, thereby enabling better maintenance work. Furthermore, there are two telescopic rods 308, which are symmetrically distributed at the bottom of the placement plate 307. The bottom of the telescopic rods 308 is connected to the top of the support plate 303, which can effectively increase the stability of the placement plate 307 when it moves, and thus enable it to be used better. Furthermore, the bottom of the base plate 1 is connected to the top of the caster wheel 2, the bottom of the base plate 1 is connected to the top of the motor 301, and the inner wall of the placement plate 307 is rotatably connected to one end of the bidirectional threaded rod 401.
[0019] When a quick overhaul of the vehicle bogie is required, the operator uses the casters 2 to quickly move the device to the desired position. Then, by activating the electric telescopic rod 306, the placement plate 307 moves. The movement of the placement plate 307 causes the telescopic rod 308 to extend and retract, increasing the stability of the placement plate 307 during movement. This allows the placement plate 307 to be quickly moved to the vehicle bogie location. The vehicle bogie is then placed on the placement plate 307 and clamped in place by the clamping mechanism 4, enabling quick and convenient overhaul of the vehicle bogie. When it is necessary to adjust the angle of the vehicle bogie, the starting motor 301 drives the rotating rod 302 to rotate, which in turn drives the bearing plate 303 to rotate. The rotation of the bearing plate 303 causes the rotating rod 304 to slide inside the limiting plate 305, thereby increasing the stability of the bearing plate 303 during rotation. The rotation of the bearing plate 303 drives the placement plate 307 to rotate, which in turn drives the vehicle bogie to rotate. This allows for quick and convenient adjustment of the vehicle bogie angle, thus facilitating better maintenance work.
[0020] Example 2: Based on Embodiment 1, the clamping mechanism 4 includes a bidirectional threaded rod 401, a movable plate 402, a clamping plate 403, a guide rod 404, and a pressing plate 405. The outer wall of the bidirectional threaded rod 401 is threadedly connected to the inner wall of the movable plate 402. The top of the movable plate 402 is connected to the bottom of the clamping plate 403. The inner wall of the clamping plate 403 is connected to both ends of the guide rod 404. The outer wall of the guide rod 404 is slidably connected to the inner wall of the pressing plate 405. In this embodiment, there are two movable plates 402, which are symmetrically distributed on the top of the placement plate 307. The top of the placement plate 307 is provided with an adjustment groove, and the bottom of the movable plate 402 is slidably connected to the inner wall of the adjustment groove, so that different sizes of vehicle bogies can be quickly clamped and fixed, and thus can be used better. Furthermore, a movable groove is provided on one side of the clamping plate 403, and one end of the extrusion plate 405 is slidably connected to the inner wall of the movable groove. A spring is fixedly installed between one side of the extrusion plate 405 and the inner wall of the movable groove, so as to further clamp and fix the vehicle bogie, thereby enabling better maintenance work.
[0021] When a vehicle bogie needs rapid maintenance, the operator can quickly move the device to the required position using the casters 2. By activating the maintenance mechanism 3, the height and angle of the placement plate 307 can be quickly and easily adjusted. When the vehicle bogie needs to be clamped and fixed, the compression plate 405 is pulled to slide on the guide rod 404 and compress the spring. The vehicle bogie is then placed on the placement plate 307. The compression plate 405 is released, and the spring force resets it, thus clamping and fixing the vehicle bogie. At this time, rotating the double-threaded rod 401 moves the moving plate 402, which in turn moves the clamping plate 403, which in turn moves the compression plate 405. This allows for the rapid clamping and fixing of vehicle bogies of different sizes, facilitating better maintenance work.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A quick maintenance fixture for urban rail transit vehicle bogies, comprising a base plate (1) and casters (2), characterized in that: An inspection structure is provided above the base plate (1); The maintenance structure includes a maintenance mechanism (3) and a clamping mechanism (4). The maintenance mechanism (3) includes a motor (301), a rotating rod (302), a bearing plate (303), a rotating rod (304), and a limiting plate (305). The output end of the motor (301) is connected to the bottom of the rotating rod (302). The top of the rotating rod (302) is connected to the bottom of the bearing plate (303). The bottom of the bearing plate (303) is connected to the top of the rotating rod (304). The bottom of the rotating rod (304) is slidably connected to the inner side of the limiting plate (305). An electric telescopic rod (306) is fixedly installed on the top of the bearing plate (303). A placement plate (307) is fixedly installed on the top of the electric telescopic rod (306). A telescopic rod (308) is fixedly installed on the bottom of the placement plate (307).
2. The quick maintenance fixture for urban rail transit vehicle bogies according to claim 1, characterized in that: There are six rotating rods (304), which are symmetrically distributed on the bottom of the bearing plate (303). The top of the limiting plate (305) has a rotating groove, and the bottom of the rotating rod (304) is slidably connected to the inner wall of the rotating groove.
3. The quick maintenance fixture for urban rail transit vehicle bogies according to claim 1, characterized in that: There are two telescopic rods (308), which are symmetrically distributed at the bottom of the placement plate (307) and are connected to the top of the support plate (303).
4. The quick maintenance fixture for urban rail transit vehicle bogies according to claim 1, characterized in that: The clamping mechanism (4) includes a bidirectional threaded rod (401), a movable plate (402), a clamping plate (403), a guide rod (404), and a pressing plate (405). The outer wall of the bidirectional threaded rod (401) is threadedly connected to the inner wall of the movable plate (402). The top of the movable plate (402) is connected to the bottom of the clamping plate (403). The inner wall of the clamping plate (403) is connected to both ends of the guide rod (404). The outer wall of the guide rod (404) is slidably connected to the inner wall of the pressing plate (405).
5. The rapid maintenance fixture for urban rail transit vehicle bogies according to claim 4, characterized in that: There are two movable plates (402), which are symmetrically distributed on the top of the placement plate (307). The top of the placement plate (307) is provided with an adjustment groove, and the bottom of the movable plate (402) is slidably connected to the inner wall of the adjustment groove.
6. The quick maintenance fixture for urban rail transit vehicle bogies according to claim 4, characterized in that: The clamping plate (403) has a movable groove on one side, and one end of the extrusion plate (405) is slidably connected to the inner wall of the movable groove. A spring is fixedly installed between one side of the extrusion plate (405) and the inner wall of the movable groove.
7. The rapid maintenance fixture for urban rail transit vehicle bogies according to claim 1, characterized in that: The bottom of the base plate (1) is connected to the top of the caster wheel (2), the bottom of the base plate (1) is connected to the top of the motor (301), and the inner wall of the placement plate (307) is rotatably connected to one end of the bidirectional threaded rod (401).