A type of axle centering lifting device

Abstract

This utility model relates to the field of high-speed train maintenance technology and discloses an axle centering and lifting device, including a base, a translation component, a lifting mechanism, a centering component, and an adjustment component. The base is used to mount the entire lifting mechanism; the translation component includes a lead screw and slide rail, which is fixedly installed on the top of the base; the lifting mechanism is installed between the translation component and the centering component; the centering component is used to support the axle, and its top is provided with a V-shaped groove adapted to the shape of the axle. This axle centering and lifting device flexibly adjusts the lifting position through the centering component, adjustment component, and translation component. The hydraulic cylinder pushes the limit plate to move, so that the axle is centered. The left and right hydraulic cylinders use synchronous valves to ensure that the hydraulic oil flow into the two hydraulic cylinders is equal, achieving balanced lifting speed and force, avoiding additional stress caused by misalignment, effectively protecting the vehicle suspension system and the structure of the lift itself, and solving the problem of inconvenient centering and lifting.

Description

Technical Field

[0001] This utility model relates to the field of high-speed train maintenance technology, specifically to an axle centering and lifting device. Background Technology

[0002] EMU, short for powered vehicle, refers to vehicles in a rail transit system that are equipped with a power unit. It includes two main categories: locomotives and powered cars. During vehicle maintenance, inspection, or repair work, it is often necessary to use a lift to raise the vehicle off the ground.

[0003] Traditional lifting equipment typically uses lifting arms that move along a fixed trajectory during lifting, making it difficult to adaptively follow the spatial movement of the vehicle's lifting points (such as axles or suspension support points). This can easily lead to lateral slippage or stress between the support pad and the vehicle's lifting points during the lifting process.

[0004] There is an urgent need for an axle alignment and lifting device to address the technical deficiencies mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an axle alignment and lifting device to solve the problem of inconvenient alignment and lifting mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an axle centering and lifting device, comprising a base, a translation component, a lifting mechanism, a centering component, and an adjusting component. The base is used to mount the entire lifting mechanism. The translation component includes a lead screw and a slide rail, which are fixedly mounted on the top of the base. The lifting mechanism is installed between the translation component and the centering component. The centering component is used to support the axle, and its top is provided with a V-groove adapted to the shape of the axle. The adjusting component includes a support seat, which is fixedly mounted on the top of the lifting mechanism, and a connecting seat is movably mounted on the top of the support seat.

[0007] As a further technical solution of this utility model, the centering component includes a fixed seat, and the V-groove is provided at the top of the fixed seat; the two sides of the top of the fixed seat are movably hinged to limit plates, and the top of the limit plates is fixedly installed with anti-slip rubber pads; the fixed seat is fixedly installed at the top of the connecting seat, and hydraulic cylinders are movably installed on both sides of the top of the centering component.

[0008] As a further technical solution of this utility model, the hydraulic cylinder is slidably installed at the bottom end of the limiting plate; the hydraulic cylinder is provided in two sets and adopts a synchronous valve.

[0009] As a further technical solution of this utility model, a stepper motor is fixedly installed inside the support base. The output end of the stepper motor is fixedly connected to the bottom end of the connecting base. Limiting rollers are movably installed on both sides of the bottom end of the connecting base, and the bottom end of the limiting rollers is in contact with the top end of the support base.

[0010] As a further technical solution of this utility model, a servo motor is fixedly installed on the right side of the lead screw slide rail, the output end of the servo motor is connected to the lead screw shaft of the lead screw slide rail, a lead screw sleeve is threaded onto the external thread of the lead screw slide rail, and the bottom end of the lifting mechanism is fixedly connected to the lead screw sleeve.

[0011] As a further technical solution of this utility model, universal wheels are fixedly connected to both sides of the bottom end of the base, and the lifting mechanism is composed of a hydraulic component and a scissor frame component.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the axle centering and lifting device not only realizes the function of easy centering and lifting, but also realizes the function of easy and flexible adjustment; With the centering component in place, the equipment moves to the area of ​​the train that needs maintenance, and then the axle is embedded into the V-groove of the fixed seat. At the same time, the hydraulic cylinder pushes the limit plate to move so that the axle is centered. The left and right hydraulic cylinders use synchronous valves to make the hydraulic oil flow into the two hydraulic cylinders equal, so as to achieve balanced lifting speed and force. When the threshold is exceeded, it will automatically adjust to avoid additional stress caused by misalignment, effectively protect the vehicle suspension system and the structure of the lift itself, and extend the service life of both. With a fixed base and an adjustment component, the stepper motor inside the adjustment component can drive the fixed base to rotate. The stepper motor has a built-in self-locking mechanism. After the fixed base is adjusted to a suitable angle, it can achieve stable self-locking and can adaptively follow the actual movement trajectory of the axle during the lifting process. This completely eliminates harmful lateral forces and slippage between the support pad and the axle. The modular design can be directly adapted to the lifting arms of most existing lifts, greatly improving the safety and stability of lifting operations. With the addition of a translation component, before lifting, the servo motor drives the lead screw shaft inside the lead screw slide rail to rotate. The lead screw sleeve outside the lead screw shaft can drive the lifting mechanism to move horizontally left and right. During the movement, the lifting mechanism can adaptively follow the actual movement trajectory of the axle in the horizontal direction during the lifting process, which greatly improves the efficiency of centering and lifting. Attached Figure Description

[0013] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a front view structural diagram of the centering component of this utility model; Figure 3For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 This is a front view of a partial structural diagram of the adjustment component of this utility model.

[0014] In the diagram: 1. Base; 2. Translation assembly; 201. Lead screw slide rail; 202. Servo motor; 203. Lead screw sleeve; 3. Lifting mechanism; 4. Centering assembly; 401. Hydraulic cylinder; 402. Limiting plate; 403. V-groove; 404. Anti-slip rubber pad; 405. Fixed seat; 5. Casters; 6. Adjustment assembly; 601. Support seat; 602. Stepper motor; 603. Connecting seat; 604. Limiting roller. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 The present invention provides an embodiment of an axle centering and lifting device, comprising a base 1, a translation component 2, a lifting mechanism 3, a centering component 4, and an adjusting component 6. The base 1 is used to mount the entire lifting mechanism; the translation component 2 includes a lead screw slide rail 201, which is fixedly mounted on the top of the base 1; the lifting mechanism 3 is mounted between the translation component 2 and the centering component 4; the centering component 4 is used to support the axle, and its top is provided with a V-groove 403 adapted to the shape of the axle; the adjusting component 6 includes a support seat 601, which is fixedly mounted on the top of the lifting mechanism 3, and a connecting seat 603 is movably mounted on the top of the support seat 601. The centering component 4 includes a fixed base 405, a V-groove 403 disposed at the top of the fixed base 405; limit plates 402 are movably hinged to both sides of the top of the fixed base 405, and anti-slip rubber pads 404 are fixedly installed at the top of the limit plates 402; the fixed base 405 is fixedly installed at the top of the connecting base 603; hydraulic cylinders 401 are movably installed on both sides of the top of the centering component 4, and the hydraulic cylinders 401 are slidably installed at the bottom of the limit plates 402; two sets of hydraulic cylinders 401 are provided and synchronous valves are used. Specifically, such as Figure 1 and Figure 3As shown, during lifting, the axle is embedded in the V-groove 403 of the fixed seat 405. At the same time, the hydraulic cylinder 401 pushes the limiting plate 402 to move so that the axle is centered. The left and right hydraulic cylinders 401 adopt a synchronous valve to make the hydraulic oil flow into the two hydraulic cylinders 401 equal, so as to achieve a balance of lifting speed and force. When the threshold is exceeded, it will automatically adjust to avoid additional stress caused by misalignment and effectively protect the vehicle suspension system and the structure of the lift itself.

[0017] A stepper motor 602 is fixedly installed inside the support base 601. The output end of the stepper motor 602 is fixedly connected to the bottom end of the connecting base 603. Limiting rollers 604 are movably installed on both sides of the bottom end of the connecting base 603. The bottom end of the limiting rollers 604 is in contact with the top end of the support base 601. Specifically, such as Figure 1 and Figure 2 As shown, the stepper motor 602 inside the adjustment component 6 can drive the fixed seat 405 to rotate. The stepper motor 602 has a built-in self-locking mechanism. After the fixed seat 405 is adjusted to a suitable angle, it can achieve stable self-locking and can adaptively follow the actual movement trajectory of the axle during the lifting process. This completely eliminates harmful lateral forces and slippage between the support pad and the axle. The modular design can be directly adapted to the lifting arms of most existing lifts, greatly improving the safety and stability of lifting operations.

[0018] A servo motor 202 is fixedly installed on the right side of the lead screw slide rail 201. The output end of the servo motor 202 is connected to the lead screw shaft of the lead screw slide rail 201. A lead screw sleeve 203 is threaded onto the external thread of the lead screw slide rail 201. The bottom end of the lifting mechanism 3 is fixedly connected to the lead screw sleeve 203. Universal wheels 5 are fixedly connected to both sides of the bottom end of the base 1. The lifting mechanism 3 is composed of a hydraulic component and a scissor frame component. Specifically, such as Figure 1 and Figure 4 As shown, before lifting, the servo motor 202 drives the lead screw shaft inside the lead screw slide rail 201 to rotate, and the lead screw sleeve 203 outside the lead screw shaft can drive the lifting mechanism 3 to move horizontally left and right. During the movement, the lifting mechanism 3 can adaptively follow the actual movement trajectory of the axle in the lifting process in the horizontal direction.

[0019] Working Principle: Before lifting, the device is moved to the train maintenance area. The stepper motor 602 inside the adjustment component 6 drives the fixed seat 405 to rotate. The stepper motor 602 has a self-locking mechanism. After adjusting the fixed seat 405 to a suitable angle, stable self-locking can be achieved. The servo motor 202 drives the lead screw shaft inside the lead screw slide rail 201 to rotate. The lead screw sleeve 203 outside the lead screw shaft can drive the lifting mechanism 3 to move horizontally left and right. During the movement, the lifting mechanism 3 is adjusted in the horizontal direction. When lifting, the axle is embedded in the V-groove 403 of the fixed seat 405. At the same time, the hydraulic cylinder 401 pushes the limit plate 402 to move so that the axle is centered. The left and right hydraulic cylinders 401 use synchronous valves to make the hydraulic oil flow into the two hydraulic cylinders 401 equal, so as to achieve balanced lifting speed and force. When the threshold is exceeded, automatic adjustment is performed to avoid additional stress caused by misalignment. This effectively protects the vehicle suspension system and the structure of the lifting machine itself, and greatly improves the safety and stability of the lifting operation.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An axle alignment and lifting device, comprising a base (1), a translation component (2), a lifting mechanism (3), an alignment component (4), and an adjustment component (6), characterized in that: The base (1) is used to install the entire lifting mechanism; The translation component (2) includes a lead screw slide rail (201), which is fixedly installed on the top of the base (1); The lifting mechanism (3) is installed between the translation component (2) and the centering component (4); The centering component (4) is used to support the axle, and its top is provided with a V-groove (403) that is adapted to the shape of the axle. The adjustment component (6) includes a support base (601), which is fixedly installed on the top of the lifting mechanism (3), and a connecting base (603) is movably installed on the top of the support base (601).

2. The axle alignment lifting device according to claim 1, characterized in that: The centering assembly (4) includes a fixed seat (405), and the V-groove (403) is provided at the top of the fixed seat (405); the two sides of the top of the fixed seat (405) are movably hinged to limit plates (402), and the top of the limit plates (402) is fixedly installed with anti-slip rubber pads (404). The fixed seat (405) is fixedly installed at the top of the connecting seat (603), and the two sides of the top of the centering assembly (4) are movably installed with hydraulic cylinders (401).

3. The axle alignment lifting device according to claim 2, characterized in that: The hydraulic cylinder (401) is slidably mounted on the bottom end of the limiting plate (402); the hydraulic cylinder (401) is provided in two sets and uses a synchronous valve.

4. The axle alignment lifting device according to claim 1, characterized in that: A stepper motor (602) is fixedly installed inside the support base (601). The output end of the stepper motor (602) is fixedly connected to the bottom end of the connecting base (603). Limiting rollers (604) are movably installed on both sides of the bottom end of the connecting base (603). The bottom end of the limiting rollers (604) is in contact with the top end of the support base (601).

5. The axle alignment lifting device according to claim 1, characterized in that: A servo motor (202) is fixedly installed on the right side of the lead screw slide rail (201). The output end of the servo motor (202) is connected to the lead screw shaft of the lead screw slide rail (201). A lead screw sleeve (203) is threaded onto the external thread of the lead screw slide rail (201). The bottom end of the lifting mechanism (3) is fixedly connected to the lead screw sleeve (203).

6. The axle alignment lifting device according to claim 1, characterized in that: The base (1) has casters (5) fixedly connected to both sides of its bottom end, and the lifting mechanism (3) consists of a hydraulic assembly and a scissor frame assembly.

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