Supporting device for under-vehicle part of metro vehicle

Abstract

The utility model discloses a subway vehicle under-vehicle part supporting device which comprises a base, a hydraulic rod and a bearing structure, the base is in a cross shape, a pulley is installed at the cross end of the base, the pulley is connected to the lower portion of the base through a screw in a threaded mode, the hydraulic rod is connected to the center of the base, and the hydraulic rod is controlled by a foot valve to stretch out and draw back. The upper end of the hydraulic rod is connected with a bearing structure, the lower portion of the bearing structure is in a rod shape and is inserted into an outer sleeve of the hydraulic rod, a rotary knob is arranged on the outer wall of the hydraulic rod to lock or loosen the bearing structure, the upper portion of the bearing structure is a bearing frame, the bearing frame is of a U-shaped groove structure, and the width of a groove is matched with the width of an under-vehicle part. And a layer of rubber is wrapped on the inner surface of the bearing frame. The supporting device is small in size, convenient to move, simple in structure and convenient to adjust height, reduces labor intensity of operators, improves production efficiency, can adapt to supporting of under-vehicle structures at different positions by replacing the supporting structure, and is high in applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for urban rail train maintenance, specifically to a support device for undercarriage components of a subway vehicle, which enables the subway to complete inspection and replacement of components without disassembling or removing them from the vehicle, saving time and increasing efficiency without damaging the original structure. Background Technology

[0002] Urban rail trains undergo maintenance every five years. To avoid unnecessary waste, the scope of replacement parts is determined based on the actual condition of the vehicle during each maintenance. Often, situations arise where the cable trays themselves need replacement, but the cables inside cannot be removed from the train. Replacing the cables requires opening the trays slightly, leaving no place to place the lower end of the trays. Alternatively, when replacing a component under the train, other parts may obstruct the process, preventing the component from being removed due to certain restrictions, allowing only limited movement. This inconvenience significantly increases the difficulty for maintenance personnel and impacts work efficiency. Furthermore, the numerous components under the train, coupled with fixed and confined space, prevent the use of ordinary or large devices. Currently, wires or ropes are commonly used to suspend non-removable components under the train, or trolleys are used to lift them. However, both methods have limitations: ropes require hanging points, and the height and size of trolleys are restricted under the train. Summary of the Invention

[0003] The purpose of this utility model is to overcome the defects in the prior art and provide a support device for the undercarriage components of subway vehicles, especially cable trays, pipes, openings or boxes. This solves the problems of the limited tools and inconvenience of the existing maintenance methods, which greatly increases the difficulty of maintenance work and affects work efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a support device for undercarriage components of a subway vehicle, comprising a base, a hydraulic rod, and a support structure. The base is cross-shaped, with a pulley installed at the cross end of the base. The pulley is threadedly connected to the bottom of the base via a screw. A hydraulic rod is connected to the center of the base. The extension and retraction of the hydraulic rod are controlled by a foot valve. The upper end of the hydraulic rod is connected to the support structure. The lower part of the support structure is a rod-shaped part inserted into the outer sleeve of the hydraulic rod. A knob is provided on the outer wall of the hydraulic rod to lock or loosen the support structure. The upper part of the support structure is a support frame. The support frame is a U-shaped groove structure, the width of which is adapted to the width of the undercarriage component. A layer of rubber is wrapped around the inner surface of the support frame.

[0005] Further optimization involves adding a wheel stop to the pulley.

[0006] Further optimization involves the support frame being either an arc-shaped structure or a flat plate structure, to accommodate different undercarriage structures.

[0007] Further optimization involves installing a handle on the outer wall of the hydraulic rod, making it convenient for maintenance personnel to hold and drag the device.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the device is small in size, easy to move, simple in structure and easy to adjust in height, which reduces the labor intensity of operators and improves production efficiency. By changing the supporting structure, it can be adapted to support under the vehicle structure in different positions, which is highly applicable. The pulley can be finely adjusted in height to adapt to uneven road surfaces. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a support device for undercarriage components of a subway vehicle.

[0010] Figure 2 This is a schematic diagram of a circular arc-shaped support structure.

[0011] Figure 3 This is a schematic diagram of a flat plate support structure.

[0012] The markings in the diagram are: 1-support structure, 2-knob, 3-handle, 4-hydraulic rod, 5-base, 6-pulley, 7-foot valve. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] This utility model provides a support device for undercarriage components of a subway vehicle, including a base 5, a hydraulic rod 4, and a support structure 1. The base 5 is cross-shaped, and pulleys 6 are installed at the cross ends of the base 5. The pulleys 6 are threadedly connected to the bottom of the base 5 via screws. The base 5 can be placed stably on various surfaces with grooves or rails. By designing the base 5 into a cross shape and installing pulleys 6 with wheel stops at the cross ends, the base 5 can be raised to a certain height to be suitable for uneven or rail-covered surfaces. Furthermore, the four pulleys 6 of the base 5 can be adjusted in height via bolts. The hydraulic rod is designed to withstand uneven terrain and ensure vertical support. A hydraulic rod 4 is connected to the center of the base 5. The extension and retraction of the hydraulic rod 4 are controlled by a foot valve 7. A support structure 1 is connected to the upper end of the hydraulic rod 4. The lower part of the support structure 1 is rod-shaped and inserted into the outer sleeve of the hydraulic rod 4. A knob 2 is located on the outer wall of the hydraulic rod 4 to lock or release the support structure 1. The upper part of the support structure 1 is a support frame, which is a U-shaped groove structure. The width of the groove is adapted to the width of the undercarriage components. A layer of rubber is wrapped around the inner surface of the support frame to protect the undercarriage components. A handle 3 is installed on the outer wall of the hydraulic rod 4 for easy handling and dragging by maintenance personnel. The hydraulic rod 4 has a load-bearing capacity of 5 tons, fully meeting the weight requirements of the undercarriage components of the subway vehicle. The top support structure 1 can be selected according to actual needs and can be easily replaced using the knob 2.

[0015] As another embodiment, the support frame has an arc-shaped structure to accommodate arc-shaped structures such as pipes and openings in the undercarriage.

[0016] As a third embodiment, the support frame is a flat plate structure, suitable for supporting large flat surfaces such as box bodies in the undercarriage structure.

[0017] In use, first select the corresponding support structure 1 and install it on the top of the hydraulic rod 4. Move the device to the designated position, adjust and fix the pulley 6, adjust the height of the hydraulic rod 4 according to the actual situation, place the parts that need to be fixed on the support frame, and tighten the knob 2 after adjusting the height. Then, other parts can be replaced, repaired, and cleaned. This device can also be used in combination with multiple devices.

[0018] By replacing different support structures 1, different undercarriage structures can be supported, thus improving the applicability of the device.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A support device for undercarriage components of a subway vehicle, characterized in that: The system includes a base, a hydraulic rod, and a support structure. The base is cross-shaped, with pulleys equipped with wheel stoppers installed at the cross ends. The pulleys are threadedly connected to the bottom of the base via screws. The hydraulic rod is connected to the center of the base, and its extension and retraction are controlled by a foot valve. The upper end of the hydraulic rod is connected to the support structure, the lower part of which is a rod-shaped part inserted into the outer sleeve of the hydraulic rod. A knob is provided on the outer wall of the hydraulic rod to lock or release the support structure. The upper part of the support structure is a support frame, which is a U-shaped groove structure. The width of the groove is adapted to the width of the undercarriage components, and a layer of rubber is wrapped around the inner surface of the support frame.

2. The subway vehicle undercarriage component support device according to claim 1, characterized in that: The support frame is an arc-shaped structure or a flat plate structure.

3. The subway vehicle undercarriage component support device according to claim 1, characterized in that: A handle is installed on the outer wall of the hydraulic rod.

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