A guide wheel assembly / disassembly tool
By designing a guide wheel assembly/disassembly fixture, and utilizing a combination of a support body and a pin shaft, the problems of difficult fixing and inconvenient angle adjustment during guide wheel assembly/disassembly were solved, enabling rapid fixing and multi-angle adjustment, thus improving the maintenance efficiency of APM vehicles.
Patent Information
- Application Number
- CN202522410474.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-13
AI Technical Summary
The lack of dedicated fixing devices during the disassembly and assembly of guide wheels in existing APM vehicles makes the operation laborious and inefficient, requiring multiple people to work together and posing safety hazards.
Design a guide wheel assembly/disassembly fixture, including a base, a column, double support arms, and a guide wheel axle support assembly. The fixture utilizes the support body and pins to achieve quick fixation and angle adjustment of the guide wheel. Through the cooperation of multiple through holes in the support body and the pins, the fixture ensures stable support and angle adjustment of the guide wheel.
It enables quick fixing and multi-angle adjustment of the guide wheels, reducing the number of operators and labor intensity, and improving maintenance efficiency.
Smart Images

Figure CN224939931U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of maintenance equipment technology for rail transit APM vehicles, and in particular to a guide wheel disassembly and assembly tool. Background Technology
[0002] APM (Automated People Mover) vehicles are automated passenger transport systems commonly used in airports, urban rail transit, and other similar applications. According to operational plans, APM fleets require the periodic disassembly and reassembly of the four guide wheels on each vehicle, amounting to hundreds of wheels annually. Currently, this work is primarily manual, and the following problems are frequently encountered during disassembly and reassembly: First, the guide wheels are heavy and have irregular axle shapes, lacking dedicated fixing devices, posing safety hazards and requiring considerable effort; second, the disassembly and reassembly process requires frequent angle adjustments, and existing methods rely on multiple people manually moving the wheels, resulting in low efficiency and difficulty in adjustment. These problems necessitate at least four people for each operation, consuming significant manpower and severely restricting maintenance efficiency. Therefore, a specialized tooling system capable of rapid fixing and multi-angle adjustment is urgently needed. Summary of the Invention
[0003] To address the shortcomings of existing technologies, the purpose of this application is to provide a guide wheel assembly and disassembly fixture that enables rapid fixing and angle adjustment of the guide wheel, thereby reducing the number of operators and labor intensity while shortening the maintenance cycle.
[0004] To achieve the above objectives, this application provides a guide wheel disassembly and assembly tooling, comprising: Base; The column is fixed to the base; Double support arms are horizontally fixed to both sides of the top of the column; The guide wheel axle support assembly is mounted on the double support arm; The guide wheel axle support assembly includes a support body, a first pin, and a second pin; The support body is provided with multiple through holes, and the first pin and the second pin are used to pass through the holes on the wheel axle and be inserted into the through holes.
[0005] Furthermore, the support body includes two opposing first vertical surfaces, a first horizontal surface located outside the first vertical surfaces and used for connection with the double support arms, a second vertical surface extending downward from the first vertical surfaces, and a second horizontal surface connected to the ends of the two second vertical surfaces, the second horizontal surface being used to support the ends of the wheel axle; An inclined elongated through hole and a circular through hole are respectively opened on the two second vertical surfaces. The first pin and the second pin are used to pass through the holes on the wheel axle and be inserted into the elongated through hole and the circular through hole, respectively.
[0006] Furthermore, the support also includes a third vertical surface disposed between the two first vertical surfaces.
[0007] Furthermore, symmetrical limiting protrusions are provided on the inner sidewalls of the two first vertical surfaces.
[0008] Furthermore, the thickness of the limiting protrusion increases uniformly from front to back.
[0009] Furthermore, the first horizontal plane is fixedly connected to the double support arms by bolts.
[0010] Furthermore, the first vertical surface, the first horizontal surface, the second vertical surface, and the second horizontal surface are integrally formed.
[0011] The guide wheel assembly and disassembly fixture provided in this application, through the combination of a support body and multiple insert rods, can quickly fix and adjust the angle of the guide wheel, thereby reducing the number of operators and labor intensity while improving maintenance efficiency.
[0012] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the guide wheel assembly and disassembly fixture according to an embodiment of this application; Figure 2 This is a right view of the guide wheel assembly / disassembly fixture according to an embodiment of this application; Figure 3 This is a front view of the guide wheel assembly / disassembly fixture according to an embodiment of this application; Figure 4 This is a schematic diagram of the guide wheel axle according to an embodiment of this application. Detailed Implementation
[0014] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.
[0015] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.
[0016] The term "comprising" and its variations as used in this application are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; and the term "some embodiments" means "at least some embodiments".
[0017] In the description of this application, it should be understood that the terms "upper," "lower," "both sides," "top," "inner," "front," "both ends," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. In this application, the terms "installation," "setting," "connection," "fixing," etc., 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 direct connection or an indirect connection through an intermediate medium. Unless otherwise explicitly specified and limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0018] It should be noted that the terms "first" and "second" may be used in this application only to distinguish different devices, components or parts, and are not used to define the order of functions performed by these devices, components or parts or their interdependence.
[0019] It should be noted that the terms "one" and "more" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "More" should be understood as two or more.
[0020] In an embodiment of this application, a guide wheel assembly / disassembly fixture is provided, comprising: a base; a column fixed to the base; double support arms horizontally fixed to both sides of the top end of the column; and a guide wheel axle support assembly mounted on the double support arms. The guide wheel axle support assembly includes a support body, a first pin, and a second pin. The support body has multiple through holes, and the first pin and the second pin are used to pass through the holes on the axle and insert into the through holes.
[0021] Figure 1 This is a three-dimensional structural diagram of the guide wheel assembly and disassembly fixture according to an embodiment of this application. Figure 2 This is a right view of the guide wheel assembly / disassembly fixture according to an embodiment of this application. Figure 3 This is a front view of the guide wheel assembly / disassembly fixture according to an embodiment of this application. The following will be combined with... Figures 1 to 3 The specific embodiments of this application will be described in further detail.
[0022] The guide wheel assembly and disassembly fixture of this application includes a base 1 for fixing on the ground, a column 2, double support arms 3 horizontally fixed on both sides of the top of the column 2, and a guide wheel axle support assembly installed on the double support arms 3.
[0023] The guide wheel axle support assembly includes a support body 4, a first pin 5, and a second pin 6. The support body 4 has two opposing first vertical surfaces 41, a first horizontal surface 42 located outside the two first vertical surfaces 41, a second vertical surface 43 extending downward from the two first vertical surfaces 41, a third vertical surface 44 located between the two first vertical surfaces 41, and a second horizontal surface 46 located between the two second vertical surfaces 43 and at their ends. The two first horizontal surfaces 42 are respectively fixed to the double support arms 3 by bolts 7. Each of the two second vertical surfaces 43 has an inclined elongated through hole 47 and a circular through hole 48 for inserting the first pin 5 and the second pin 6.
[0024] The inclined elongated through hole 47 mentioned in this application refers to a strip-shaped through hole opened on the second vertical plane 43 at a certain angle to the horizontal direction. Its function is to provide support positions at different heights for the first pin 5 so as to realize the angle adjustment of the guide wheel axle.
[0025] The guide wheel assembly and disassembly fixture of this application embodiment provides reliable support for the guide wheel during assembly and disassembly, and the angle can be adjusted by adjusting the insertion position of the first pin 5 and the second pin 6 on the wheel axle.
[0026] The guide wheel described in this application includes a solid tire and a solid axle, the solid axle being as follows: Figure 4As shown, the end of the axle furthest from the tire has a porous structure. When assembling or disassembling the guide wheel using the aforementioned guide wheel assembly and disassembly tool, simply place the porous end of the axle between the second vertical surfaces 43, and use the first pin 5 and the second pin 6 to pass through any hole on the axle and insert into the long through hole 47 and the circular through hole 48 on the second vertical surface 43 to achieve reliable support. The angle of the axle can also be adjusted, making it convenient for workers to assemble or disassemble the tire and the axle, reducing the labor intensity of workers, and greatly improving the efficiency of guide wheel assembly and disassembly.
[0027] In the embodiments of this application, in order to enable the wheel axle to be smoothly placed into the tooling and to ensure that the wheel axle is placed in the correct position, symmetrical limiting protrusions 45 are provided on the inner sidewalls of the two first vertical surfaces 41, and the thickness of the limiting protrusions 45 increases uniformly from front to back, so that the wheel axle can be smoothly placed into the tooling from the front while restricting its placement position.
[0028] The limiting protrusion 45 refers to a structure that protrudes inward from the inner wall of the first vertical surface 41. Its thickness gradually increases along the direction of insertion of the guide wheel axle (from front to back), forming a guide slope to guide the wheel axle to slide in and prevent it from going too deep.
[0029] In the embodiments of this application, all the first vertical surface 41, the first horizontal surface 42, the second vertical surface 43, and the second horizontal surface 46 are integrally formed to enhance the structural strength and overall rigidity of the support body, prevent loosening at the connection points, ensure the tooling is stable and reliable when under load and stress, and extend its service life.
[0030] It will be understood by those skilled in the art that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A tooling for disassembling and assembling guide wheels, characterized in that, include: Base; The column is fixed to the base; Double support arms are horizontally fixed to both sides of the top of the column; The guide wheel axle support assembly is mounted on the double support arm; The guide wheel axle support assembly includes a support body, a first pin, and a second pin; The support body is provided with multiple through holes, and the first pin and the second pin are used to pass through the holes on the wheel axle and be inserted into the through holes.
2. The guide wheel assembly / disassembly fixture according to claim 1, characterized in that, The support includes two opposing first vertical surfaces, a first horizontal surface located outside the first vertical surfaces and used to connect with the double support arms, a second vertical surface extending downward from the first vertical surfaces, and a second horizontal surface connected to the ends of the two second vertical surfaces, the second horizontal surface being used to support the ends of the wheel axle; Inclined strip-shaped through holes and circular through holes are respectively opened on the two second vertical surfaces. The first pin and the second pin are used to pass through the holes on the wheel axle and be inserted into the strip-shaped through holes and the circular through holes.
3. The guide wheel assembly / disassembly fixture according to claim 2, characterized in that, The support also includes a third vertical surface disposed between the two first vertical surfaces.
4. The guide wheel assembly / disassembly fixture according to claim 2, characterized in that, Symmetrical limiting protrusions are provided on the inner sidewalls of the two first vertical surfaces.
5. The guide wheel assembly / disassembly fixture according to claim 4, characterized in that, The thickness of the limiting protrusion increases uniformly from front to back.
6. The guide wheel assembly / disassembly fixture according to claim 2, characterized in that, The first horizontal plane is fixedly connected to the double support arms by bolts.
7. The guide wheel assembly / disassembly fixture according to claim 2, characterized in that, The first vertical surface, the first horizontal surface, the second vertical surface, and the second horizontal surface are integrally formed.
