Auxiliary device for tram traction motor dismounting

Abstract

The utility model provides a kind of tramcar traction motor dismounting auxiliary device, detachably connected in manual hydraulic fork truck, including the bearing platform placed on base, the bearing platform end part is equipped with locating pin, the bearing platform bottom is provided with moving mechanism, the base middle part is provided with limiting mechanism, the limiting mechanism with the moving mechanism axis is horizontal perpendicular state.The utility model's beneficial effect is reflected in: using the device auxiliary to carry out the dismounting of traction motor, can be completed without frame car, greatly simplifies operation process, reduces dismounting cost, and improves operating safety, and strong practicality.

Description

Technical Field

[0001] This utility model belongs to the field of tram maintenance technology, specifically relating to an auxiliary device for disassembling and assembling a tram traction motor. Background Technology

[0002] Traction motors are core power devices used in rail transit, electric vehicles, and other equipment to convert electrical energy into mechanical energy. Currently, the installation and removal of traction motors for trams still rely on traditional methods, requiring a jacking machine to lift the entire tram, separating the car body from the bogies before operation. This traditional method has the following problems: Low efficiency: It requires a jacking machine, involves multiple lifting and separation steps, is time-consuming and labor-intensive, and has a long maintenance cycle. High cost: Jacking operations consume a large amount of materials (such as bolts, washers, etc.), and the maintenance cost of the jacking machine is high. Safety hazards: There is a risk of instability in the separation of the car body and bogies during the jacking process, which may lead to safety accidents. Poor adaptability: For different car models or bogie structures, the jacking operation requires adjustments to the position and process parameters of the jacking machine, lacking flexibility. Therefore, there is an urgent need for a device that allows for the direct installation and removal of traction motors without jacking, to simplify the operation process, reduce costs, and improve safety. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a device for disassembling and assembling traction motors for trams. This device allows for direct disassembly and assembly of traction motors without the need for vehicle mounting, which greatly simplifies the work process, reduces costs, and improves safety.

[0004] The objective of this utility model is achieved through the following technical solution: A device for assembling and disassembling a traction motor for a tram is detachably connected to a manual hydraulic forklift. It includes a support platform placed on a base, with a positioning pin at the end of the support platform, a moving mechanism at the bottom of the support platform, and a limiting mechanism in the middle of the base. The limiting mechanism is horizontally perpendicular to the axis of the moving mechanism.

[0005] Preferably, a locking mechanism is connected to the lower part of the base. The locking mechanism includes baffles vertically connected to both ends of the base, and the baffles are provided with bolt assemblies for locking with a manual hydraulic forklift.

[0006] Preferably, the support platform is placed on the moving mechanism via a slider at the bottom. The moving mechanism includes a threaded rod passing through the base, guide rods on both sides of the threaded rod, and a handwheel connected to one end of the threaded rod extending out of the base.

[0007] Preferably, the limiting mechanism is located at the bottom of the base and includes a T-shaped rod located at the bottom of the base. The inner end of the T-shaped rod is fixed to the bottom of the base by bolts, and a set of rubber rollers are connected to the outer end of the T-shaped rod.

[0008] Preferably, the inner end of the T-shaped rod is provided with an adjustment hole, and the length of the T-shaped rod extending out of the base is adjusted through the adjustment hole.

[0009] The beneficial effects of this utility model are reflected in the fact that the disassembly and assembly of the traction motor can be completed without lifting the vehicle, which greatly simplifies the operation process, reduces the disassembly and assembly cost, and improves the operation safety, making it highly practical. Attached Figure Description

[0010] Figure 1 : A schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This utility model Figure 1 Top view.

[0012] Figure 3 This utility model Figure 1 Side view.

[0013] Figure 4 This is a schematic diagram showing the positional relationship between the present invention and the forklift during actual use.

[0014] Figure 5 : Schematic diagram of the installation location of the traction motor.

[0015] Figure 6 Schematic diagram of tram bogie structure. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided in conjunction with the appendix. Figure 1-6 The present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0017] This utility model discloses an auxiliary device for disassembling and assembling a traction motor of a tram. The device is detachably connected to a manual hydraulic forklift and is used in conjunction with the forklift in actual use. The auxiliary device includes a base 511, within which a moving mechanism is provided. A support platform 512 is mounted on the moving mechanism via a slider. A locking mechanism 53 is connected below the base 511. The locking mechanism 53 includes two sets of baffles 531 vertically connected to both ends of the base. Bolt assemblies 532 for locking with the manual hydraulic forklift are provided on the baffles 531. The two sets of baffles 531 are symmetrically arranged. When connected to the forklift, the forklift will pass between the baffles, thereby limiting the displacement of the auxiliary device along the direction perpendicular to the forklift, preventing positional deviation during operation, and ensuring the stability and safety of the device during disassembly and assembly. In this embodiment, there are four sets of bolt assemblies. The bolt heads have circular rubber blocks for anti-slip purposes. By tightening the bolts to press the forklift, quick locking can be achieved.

[0018] The moving mechanism includes a threaded rod 514 passing through the base 511. Guide rods 515 are arranged parallel to each other on both sides of the threaded rod 514. One end of the threaded rod 514 passes through the base, and the other end extends out of the base and is connected to a handwheel 513. The handwheel 513 can drive the support platform 512 to move on the threaded rod, that is, realize its sliding adjustment along the length of the tram.

[0019] The end of the support platform 512 is provided with a positioning pin 516, which is used to insert into the positioning hole of the traction motor foot during use to achieve precise fixation of the traction motor position. The position and number of the positioning pins 516 are matched with the positioning holes of the traction motor foot.

[0020] A limiting mechanism 52 is also provided at the lower center of the base 511. The axis of the limiting mechanism 52 is horizontally perpendicular to the axis of the moving mechanism. The limiting mechanism 52 includes a T-shaped rod. The inner end of the T-shaped rod is fixed to the bottom of the base 511 by bolts, and a set of rubber rollers 523 are connected to the outer end of the T-shaped rod. For better adjustment, an adjustment hole is provided at the inner end of the T-shaped rod. The length of the T-shaped rod extending out of the base is adjusted through the adjustment hole. The base is provided with a mounting groove. The inner end of the T-shaped rod is inserted into the mounting groove and fixed to the base by bolts. In use, first ensure that the rubber rollers 523 can abut against the bogie frame, and then fix it to the base with bolts.

[0021] The limiting mechanism ensures accurate positioning of the manual hydraulic forklift as it moves along the width of the tram, guaranteeing that the traction motor and bogie are parallel during installation and removal. Rubber rollers 523 maintain a distance from the bogie frame during lifting and lowering, facilitating precise positioning during traction motor installation and removal.

[0022] In this embodiment, the base 511 measures 70cm in length, 30cm in width, and 7cm in height. The threaded rod is 72cm long, with a thread length of at least 68cm, and the guide rod is 68cm long. The longer T-shaped rod is 25cm long, and the shorter end is 16cm long. The mounting slot is located in the middle of the base and is approximately 9cm long. The height of the stop block matches the thickness of the fork ruler and can be 6-7cm. Of course, all the dimensions in the device can be adjusted according to actual needs and should not be considered as limitations affecting the substantial effectiveness of this solution.

[0023] The working principle of this utility model is as follows: (1) Disassembly of traction motor Separate the traction motor 1 from the gearbox 2, and remove the bolt assembly on the bogie frame 4 used to fix the traction motor. Install this device on a manual hydraulic forklift 6, ensuring that the limiting mechanism 52 protrudes further than the fork. Move the forklift until the rubber rollers 523 of the limiting mechanism abut against the bogie frame. Adjust the height of this device by lifting it with the forklift, and drive the threaded rod 514 by rotating the handwheel 513 to move the support platform in a predetermined direction. Finally, insert the locating pin 516 on the support platform 512 into the traction motor's mounting hole. Then, use the forklift to lift the traction motor appropriately and pull it out, completing the traction motor disassembly.

[0024] (2) Traction motor installation Install this device 5 onto the manual hydraulic forklift 6, ensuring that the limiting mechanism 52 protrudes further than the fork ruler. Place the traction motor 1 onto this device, inserting the locating pin 516 into the traction motor's mounting hole to fix the position of the traction motor 1. Move the forklift until the rubber roller 523 of the limiting mechanism abuts against the bogie frame. Raise the traction motor to a certain height using the forklift. By rotating the handwheel to drive the threaded rod, the support platform moves the traction motor in a predetermined direction until the traction motor mounting hole aligns with the bogie frame mounting hole. Then, tighten the bolt assembly to complete the installation of the traction motor and connect the traction motor 1 to the gearbox 2.

[0025] This invention eliminates the need for vehicle jacking during traction motor assembly and disassembly. It allows for direct operation using the device and a manual hydraulic forklift, eliminating the step of separating the vehicle body from the bogie, reducing the use of jacking machines and material consumption, and lowering operating costs. The sliding adjustment of the support platform and the precise alignment of the limiting mechanism significantly shorten assembly and disassembly time and improve efficiency. The locking mechanism effectively prevents misalignment between the device and the forklift, thereby improving operational stability, reducing operational risks, and enhancing operational safety. This device is highly adaptable and can be used with different models of manual hydraulic forklifts, thus addressing the assembly and disassembly scenarios for traction motors on various tram models.

[0026] Finally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., appearing in the text, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary device for disassembling and assembling a traction motor for a tram, characterized in that: A detachable connection to a manual hydraulic forklift includes a support platform placed on a base. The end of the support platform is provided with a positioning pin, and a moving mechanism is provided at the bottom of the support platform. A limiting mechanism is provided in the middle of the base, and the limiting mechanism is horizontally and vertically aligned with the axis of the moving mechanism. The support platform is placed on the moving mechanism via a slider at the bottom. The moving mechanism includes a threaded rod passing through the base, guide rods on both sides of the threaded rod, and one end of the threaded rod extending out of the base and connected to a handwheel. The limiting mechanism is located at the bottom of the base and includes a T-shaped rod located at the bottom of the base. The inner end of the T-shaped rod is fixed to the bottom of the base by bolts, and a set of rubber rollers are connected to the outer end of the T-shaped rod.

2. The auxiliary device for disassembling and assembling a tram traction motor as described in claim 1, characterized in that: A locking mechanism is connected to the bottom of the base. The locking mechanism includes two sets of baffles vertically connected to both ends of the base. The baffles are provided with bolt assemblies for locking with a manual hydraulic forklift.

3. The auxiliary device for disassembling and assembling a tram traction motor as described in claim 2, characterized in that: The inner end of the T-shaped rod is provided with an adjustment hole, through which the length of the T-shaped rod extending out of the base is adjusted.

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