A tooling for pressing the guide wheel rim of an APM vehicle

Abstract

This utility model provides a tooling for pressing the guide wheel rim of an APM vehicle, comprising: a gantry frame for providing a support structure; a hydraulic jack mounted on the gantry frame via a base for providing pressing force; and a transition connecting block disposed at the lower end of the hydraulic jack's pressure rod for engaging with the guide wheel rim, transmitting pressure, and positioning. The lower part of the transition connecting block has a circular interface matching the size of the guide wheel rim to prevent rim displacement or deformation during pressing. This utility model provides a tooling for pressing the guide wheel rim of an APM vehicle. Through the coordinated operation of the gantry frame, hydraulic jack, and dedicated transition connecting block, this utility model achieves a tooling with a simple structure, convenient operation, and precise control, enabling rapid, accurate, and non-destructive installation of the guide wheel rim.

Description

Technical Field

[0001] This utility model relates to the field of APM vehicle maintenance technology, and in particular to a tooling for pressing the guide wheel flange of an APM vehicle. Background Technology

[0002] APM (Automated People Mover) vehicles are automated passenger transport systems commonly used in airports, urban rail transit, and other similar applications. After a certain mileage (e.g., 115,200 kilometers), the guide wheels of APM vehicles need to be disassembled, reassembled, and replaced. Press-fitting the guide wheel flanges is a critical process. Due to their unique structure, susceptibility to deformation, the large pressing force required, and the precise angle at which external force is applied, traditional installation methods can easily lead to flange deformation, improper installation, or equipment damage, affecting vehicle operational safety and maintenance efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a tooling for pressing the guide wheel flange of APM vehicles, so as to realize the fast, accurate and non-destructive installation of the guide wheel flange.

[0004] To achieve the above objectives, this utility model provides a tooling for pressing the guide wheel flange of an APM vehicle, comprising:

[0005] Gantry cranes are used to provide supporting structures;

[0006] A hydraulic jack, mounted on the gantry frame via a base, is used to provide pressing force;

[0007] A transition connecting block is located at the lower end of the pressure rod of the hydraulic jack and is used to cooperate with the guide wheel rim, transmit pressure, and position.

[0008] The lower part of the transition connecting block is provided with a circular interface that matches the size of the guide wheel rim, which is used to prevent the rim from shifting or deforming during the pressing process.

[0009] Furthermore, the gantry frame is provided with an installation interface for installing a hydraulic jack, and the interface is matched with the mounting base of the hydraulic jack.

[0010] Furthermore, the installation interface is a flange or mounting plate that matches the size of the mounting base and bolt hole positions of the hydraulic jack, and is located at the center of the upper crossbeam of the gantry frame.

[0011] Furthermore, the lower end of the pressure rod of the hydraulic jack is provided with an external thread or a smooth cylindrical end face that matches the upper part of the transition connecting block; the upper part of the transition connecting block is provided with an internal threaded hole or an interference fit blind hole or groove that matches the lower end of the pressure rod, for the purpose of achieving rapid positioning and pressure transmission.

[0012] Furthermore, the hydraulic jack is equipped with a pressure gauge to display the pressing force in real time, in order to determine whether the pressing is in place.

[0013] Furthermore, the transition connection block includes: an upper interface, the top of which is provided with an interface that matches the shape of the lower end of the hydraulic jack's pressure rod, so as to ensure that the pressure can be transmitted downward along the axis;

[0014] The lower pressure head is a circular disc-shaped structure with a diameter equal to or greater than the outer diameter of the guide wheel rim.

[0015] The APM vehicle guide wheel flange pressing fixture provided by this utility model, through the coordinated operation of a gantry frame, hydraulic jack and special transition connecting block, realizes a simple structure, convenient operation and precise control fixture, effectively solving the problem of APM vehicle guide wheel flange pressing.

[0016] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They, together with the embodiments of the present invention, serve to explain the present invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the gantry frame and hydraulic jack structure according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the transition connection block structure according to an embodiment of the present utility model.

[0020] Figure label:

[0021] 101-Gantry frame; 102-Hydraulic jack; 103-Transition connecting block; 104-Mounting base; 1011-Upper crossbeam; 1012-Outrigger; 1031-Upper interface; 1032-Lower pressure head. Detailed Implementation

[0022] The preferred embodiments of the present invention will be 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 the present invention.

[0023] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention 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 the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0024] The term "comprising" and its variations as used in this invention 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"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0025] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "Multiple" should be understood as two or more.

[0026] In an embodiment of this utility model, an APM vehicle guide wheel flange pressing fixture is provided, comprising: a gantry frame for providing a support structure; a hydraulic jack mounted on the gantry frame via a base for providing pressing force; and a transition connecting block disposed at the lower end of the pressure rod of the hydraulic jack for engaging with the guide wheel flange, transmitting pressure, and positioning; the lower part of the transition connecting block is provided with a circular interface matching the size of the guide wheel flange to prevent flange displacement or deformation during the pressing process.

[0027] Figure 1 This is a schematic diagram of the gantry frame and hydraulic jack structure according to an embodiment of the present utility model. Figure 2 The following is a schematic diagram of the transition connection block structure according to an embodiment of the present utility model, which will be described in conjunction with... Figure 1 and Figure 2 This invention provides a detailed description of the APM vehicle guide wheel flange press-fit fixture. It should be noted that the accompanying drawings primarily illustrate the structure of the fixture itself; the guide wheel flange, as the workpiece to be press-fitted, is not shown in the drawings. However, its mating relationship with the fixture is something that those skilled in the art can directly and unambiguously determine based on the description of the embodiments of this invention.

[0028] The APM vehicle guide wheel flange pressing fixture of this utility model includes: a gantry frame 101, a hydraulic jack 102, and a transition connecting block 103.

[0029] The gantry frame 101 serves as the supporting foundation and load-bearing frame for the entire tooling. Its structure is a portal frame, welded from high-strength steel plates or shaped steel sections (such as square steel or H-beams), ensuring sufficient rigidity, strength, and stability to withstand the enormous reaction force generated by the hydraulic jack 102 during the pressing process without deformation. Specifically, a dedicated mounting interface is located at the center of the upper crossbeam 1011 of the gantry frame 101 for fixing the mounting base 104 of the hydraulic jack 102. The two outriggers 1012 of the gantry frame 101 provide ample operating space at the bottom, facilitating the placement of the guide wheel assembly being pressed.

[0030] In the embodiments of this utility model, the above-mentioned installation interface is a flange or mounting plate that matches the size and bolt hole position of the mounting base 104 of the hydraulic jack 102 to ensure the coaxiality of pressure transmission.

[0031] In an embodiment of this utility model, the gantry frame 101 further includes a base for providing bottom support and a stable platform for the two outriggers 1012.

[0032] Hydraulic jack 102 is the power source for the tooling, used to provide the linear pressure and stroke required for press fitting. It is connected to a manual or electric hydraulic pump (not shown in the figure) via a high-pressure oil pipe.

[0033] In this embodiment of the invention, the hydraulic jack 102 is a single-acting plunger-type hydraulic jack with a pressure gauge. Its pressure rod (located in the mounting base 104, not shown in the figure) typically has an external thread or a smooth cylindrical end face machined at its lower end. The pressure gauge is a key feature of this invention, capable of displaying the pressure value during the pressing process in real time and intuitively. Operators can monitor changes in pressure value through the pressure gauge to determine whether the pressing is complete (e.g., a sudden pressure increase indicates pressing is finished), thereby achieving quantitative control of process parameters, ensuring consistency in the pressing quality of each batch, and avoiding improper installation or damage to parts due to insufficient pressure or overload.

[0034] The transition connecting block 103 is a key intermediate component connecting the pressure rod of the hydraulic jack 102 and the workpiece being pressed (i.e., the guide wheel rim). Its core functions are to transmit pressure, accurately position, and protect the workpiece. The transition connecting block 103 is another key feature of this utility model, effectively solving problems such as uneven force distribution, inaccurate positioning, and surface damage to the rim that may result from direct contact between the end face of the jack pressure rod and the easily deformable wheel rim.

[0035] In this embodiment of the invention, the transition connecting block 103 is an integrally formed block part, the structure of which can be divided into upper and lower parts:

[0036] The upper interface 1031 has an interface at its top that matches the shape of the lower end of the pressure rod of the hydraulic jack 102. If the lower end of the pressure rod of the hydraulic jack 102 has an external thread, then this interface is a corresponding internal threaded hole to achieve a threaded connection; if the lower end of the pressure rod of the hydraulic jack 102 has a smooth end face, then this interface can be a simple blind hole or groove, achieving positioning and pressure transmission through interference fit or tight fit. Its core function is to ensure that pressure can be accurately transmitted downwards along the axis.

[0037] The lower pressure head 1032 is the part that directly contacts the guide wheel rim. The lower pressure head 1032 is designed as a large-diameter circular disc structure, the diameter of which matches or is slightly larger than the outer diameter of the guide wheel rim. This design ensures that during press-fitting, the force is evenly applied to the entire end face of the rim or specific stress-bearing rings, minimizing rim warping, deformation, or displacement caused by stress concentration, thus guaranteeing a smooth press-fitting process and the integrity of the part.

[0038] The APM vehicle guide wheel flange pressing fixture provided by this utility model is operated as follows:

[0039] 1) Place the guide wheel rim to be pressed into the designated installation position on the guide wheel assembly. Move the gantry 101 to the working position so that it straddles the guide wheel assembly.

[0040] 2) Reliably install the hydraulic jack 102 on the gantry frame 101, and firmly connect the upper part of the transition connecting block 103 to the lower end of the pressure rod of the hydraulic jack 102.

[0041] 3) Manually adjust the position of the gantry 101 or the workpiece to be pressed, so that the circular pressure head at the bottom of the transition connecting block 103 is aligned with the end face of the guide wheel rim.

[0042] 4) Start the hydraulic system so that the pressure rod of the hydraulic jack 102 slowly extends downward and applies pressure smoothly to the guide wheel rim through the transition connecting block 103.

[0043] 5) Operators should closely monitor the pressure gauge reading on the hydraulic jack 102. When the pressure value stabilizes within the acceptable range specified in the process, it indicates that the pressing is complete.

[0044] 6) Operate the hydraulic system to release pressure, causing the pressure rod of the hydraulic jack 102 to retract, moving the gantry frame 101 away from the working position, and completing the pressing operation.

[0045] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An APM vehicle guide wheel rim press fitting tool, characterized in that, include: Gantry cranes are used to provide supporting structures; A hydraulic jack, mounted on the gantry frame via a base, is used to provide pressing force; A transition connecting block is located at the lower end of the pressure rod of the hydraulic jack and is used to cooperate with the guide wheel rim, transmit pressure, and position. The lower part of the transition connecting block is provided with a circular interface that matches the size of the guide wheel rim, which is used to prevent the rim from shifting or deforming during the pressing process.

2. The APM vehicle guide wheel rim press-on tooling as claimed in claim 1, wherein, The gantry frame is provided with an installation interface for installing hydraulic jacks, and the interface is matched with the mounting base of the hydraulic jacks.

3. The APM vehicle guide wheel rim press-on tooling as claimed in claim 2, wherein, The installation interface is a flange or mounting plate that matches the size of the mounting base and bolt hole positions of the hydraulic jack, and is located at the center of the upper crossbeam of the gantry frame.

4. The APM vehicle guide wheel rim press-on tooling of claim 1, wherein, The lower end of the pressure rod of the hydraulic jack is provided with an external thread or a smooth cylindrical end face that matches the upper part of the transition connecting block; the upper part of the transition connecting block is provided with an internal threaded hole or an interference fit blind hole or groove that matches the lower end of the pressure rod, for the purpose of achieving rapid positioning and pressure transmission.

5. The APM vehicle guide wheel rim press-on tooling of claim 1, wherein, The hydraulic jack is equipped with a pressure gauge to display the pressing force in real time, so as to determine whether the pressing is in place.

6. The APM vehicle guide wheel rim press-on tooling of claim 1, wherein, The transition connection block includes: an upper interface, the top of which is provided with an interface that matches the shape of the lower end of the hydraulic jack's pressure rod, so as to ensure that the pressure can be transmitted downward along the axis; The lower pressure head is a circular disc-shaped structure with a diameter equal to or greater than the outer diameter of the guide wheel rim.

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