Auxiliary replacing device for winch motor

By designing an auxiliary replacement device for the winch motor, and utilizing a lifting platform and limit components, the problems of high labor intensity and poor safety when replacing the winch motor of a single-girder bridge crane are solved, achieving an efficient and safe motor replacement process.

CN223534787UActive Publication Date: 2025-11-11CHINA RAILWAY UNION CHINA RAILWAY NANCHANG BUREAU GRP CO LTD YINGTAN PUBLIC WORKS MASCH SECTION COMMITTEE
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Patent Information

Application Number
CN202423220769.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-11
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

In the existing technology, replacing the winch motor of a single-girder bridge crane is labor-intensive, inefficient, and dangerous, especially posing safety hazards when working at height.

Method used

A hoist motor auxiliary replacement device was designed, including a bottom frame, casters, a limiting component, and an electromagnet. Utilizing the hoist fixing device, the device is attracted to the hoist by the limiting component and the electromagnet, allowing for the disassembly and installation of the motor in conjunction with the hoist, thus reducing manual operation.

Benefits of technology

This improved the efficiency and safety of winch motor replacement, reduced the labor intensity and danger of working at heights, and achieved an efficient and safe motor replacement process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a winch motor auxiliary replacing device which comprises a bottom frame, universal wheels are fixedly connected to the four corners of the bottom end of the bottom frame, a supporting frame is fixedly connected to the upper end of the bottom frame, a mounting frame is fixedly connected to the interior of the supporting frame, and a limiting assembly is arranged in the middle of the mounting frame. According to the utility model, the device can be conveniently moved through the arranged universal wheels, the device is arranged on an elevator, the device and an elevator base can be fixed and limited through the arranged limiting assembly, the device is prevented from moving during use, and when a winch motor of the single-beam crane is replaced, the elevator is lifted to be supported to the motor, so that the motor is not required to be replaced. When a new motor is replaced, the new motor can be placed on the connecting frame of the device, and then the device and the new motor of the device are lifted through the lifter, so that the replacement efficiency can be improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of winch motor auxiliary replacement device, and in particular to a winch motor auxiliary replacement device. Background Technology

[0002] Single-girder bridge cranes are essential special equipment for loading and unloading operations in rail welding workshops. There are currently 111 of them. Electric hoists are usually installed on the cranes as lifting equipment for heavy objects. They consist of 11 main components, including motor, reducer, running mechanism, drum device, hook device, coupling, slow drive device, current introducer, limit switch, lifting limiter and electrical control system.

[0003] Frequent use of winch motors and exposure to thunderstorms can cause damage to them, requiring maintenance personnel to replace them.

[0004] Currently, when replacing the winch motor on a single-girder overhead crane, the winch motor is tied with hemp rope. Maintenance personnel lift and remove the motor, manually place it on the ground, then secure the replacement winch motor with hemp rope, pull the winch motor onto the crane, and then wrap and tie the motor with hemp rope again. The motor is then manually lifted and its position adjusted for assembly. On the limited high-altitude maintenance frame, the winch motor is raised, the flexible coupling is installed, and the center of the motor shaft is roughly aligned with the center of the winch gearbox shaft before being bolted in place. This assembly method is labor-intensive, inefficient, and extremely dangerous.

[0005] To overcome these disadvantages, this utility model provides an auxiliary replacement device for a winch motor. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an auxiliary replacement device for a hoisting motor.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a hoist motor auxiliary replacement device, comprising a bottom frame, universal wheels fixedly connected to the four corners of the bottom end of the bottom frame, a support frame fixedly connected to the upper end of the bottom frame, an mounting frame fixedly connected inside the support frame, a limit component provided in the middle of the mounting frame, first support plates fixedly connected to the left and right sides of the upper end of the support frame, connecting seats fixedly connected to the front and rear sides of the upper surface of the first support plates, connecting plates provided between the left and right corresponding connecting seats, two second support plates bolted between the connecting plates, and connecting frames fixedly connected to the front and rear sides of the upper end of the second support plates.

[0008] Furthermore, the limiting component includes a connecting pipe fixedly connected to the mounting bracket, a screw rotatably connected to the upper end of the connecting pipe, and an adjusting turntable fixedly connected to the upper end of the screw.

[0009] Furthermore, limit strips are fixedly connected to both sides of the inner wall of the connecting pipe, and an internal threaded tube is provided inside the connecting pipe. The internal threaded tube is threadedly connected to the screw, and limit grooves are opened on both sides of the internal threaded tube. The limit grooves are slidably connected to the corresponding limit strips.

[0010] Furthermore, a fixing plate is fixedly connected to the bottom end of the internally threaded tube, and electromagnets are fixedly connected to the four corners of the bottom end of the fixing plate.

[0011] Furthermore, limit sliders are fixedly connected to both sides inside the connecting seat, and sliding grooves are provided on both sides of the connecting plate, with the sliding grooves respectively slidably connected to the corresponding limit sliders.

[0012] Furthermore, the connecting plate is provided with a plurality of first threaded holes, and the connecting bracket is provided with a second threaded hole.

[0013] The beneficial effects of this utility model are:

[0014] In use, this utility model's hoist motor auxiliary replacement device features casters that facilitate movement. The device is placed on a lifting platform, and a limiting component secures it to the platform base, preventing movement during use. When replacing a single-beam trolley hoist motor, the lifting platform is raised to support the motor before disassembling it. When replacing a new motor, it is first placed on the device's connecting frame, and then the lifting platform is used to raise both the device and the new motor, thus improving replacement efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : Front view of this utility model;

[0017] Figure 2 : A schematic diagram of the limiting component structure of this utility model;

[0018] Figure 3 : A schematic diagram of the limiting component structure of this utility model;

[0019] Figure 4: Schematic diagram of the connecting plate and connecting frame structure of this utility model;

[0020] Figure 5 : Schematic diagram of the limiting component structure of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Bottom frame; 2. Casters; 3. Support frame; 4. Mounting frame; 5. Limiting assembly; 6. First support plate; 7. Connecting seat; 8. Connecting plate; 9. Second support plate; 10. Connecting frame; 11. Connecting pipe; 12. Adjusting turntable; 13. Limiting slider; 14. Screw; 15. Limiting strip; 16. First threaded hole; 17. Slide groove; 18. Second threaded hole; 19. Internal threaded pipe; 20. Limiting groove; 21. Fixing plate; 22. Electromagnet. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] like Figure 1-5 As shown, a hoist motor auxiliary replacement device is disclosed, comprising a bottom frame 1, universal wheels 2 fixedly connected to the four corners of the bottom end of the bottom frame 1, a support frame 3 fixedly connected to the upper end of the bottom frame 1, a mounting frame 4 fixedly connected inside the support frame 3, a limit component 5 provided in the middle of the mounting frame 4, a first support plate 6 fixedly connected to the left and right sides of the upper end of the support frame 3, a connecting seat 7 fixedly connected to the front and rear sides of the upper surface of the first support plate 6, a connecting plate 8 provided between the left and right corresponding connecting seats 7, two second support plates 9 bolted between the connecting plates 8, and a connecting frame 10 fixedly connected to the front and rear sides of the upper end of the second support plate 9.

[0025] As shown in the figure, the limiting component 5 includes a connecting pipe 11 fixedly connected to the mounting bracket 4. A screw 14 is rotatably connected to the upper end of the connecting pipe 11. An adjusting turntable 12 is fixedly connected to the upper end of the screw 14. Limiting strips 15 are fixedly connected to both sides of the inner wall of the connecting pipe 11. An internally threaded pipe 19 is provided inside the connecting pipe 11. The internally threaded pipe 19 is threadedly connected to the screw 14. Limiting grooves 20 are opened on both sides of the internally threaded pipe 19. The limiting grooves 20 are slidably connected to the corresponding limiting strips 15. A fixing plate 21 is fixedly connected to the bottom end of the internally threaded pipe 19. Electromagnets 22 are fixedly connected to the four corners of the bottom end of the fixing plate 21. By rotating the adjusting turntable, the screw 14 can be rotated, thereby driving the internally threaded pipe 19 to move along the limiting strips 15 through the limiting grooves 20. This causes the electromagnets 22 at the lower end of the fixing plate 21 to contact the elevator floor. By energizing the electromagnets 22, they can be attracted to the floor, thereby fixing the device and preventing it from moving during use.

[0026] As shown in the figure, the connecting seat 7 has a limit slider 13 fixedly connected to both sides inside. The connecting plate 8 has a sliding groove 17 on both sides. The sliding groove 17 is slidably connected to the corresponding limit slider 13, so that the connecting plate 8 can be moved. The connecting plate 8 slides with the slider in the connecting seat 7 through the sliding groove 17, so that the hoisting motor can be moved and the position can be adjusted.

[0027] As shown in the figure, the connecting plate 8 has several first threaded holes 16, and the connecting frame 10 has second threaded holes 18. Bolts can be used to fix the connecting frame 10 to the connecting plate 8 through the first threaded holes 16 and the second threaded holes 18.

[0028] Working Principle: During use, the casters 2 facilitate movement of the device. When placed on the elevator, the limiting assembly 5 secures the device to the elevator base. Specifically, rotating the adjusting turntable rotates the screw 14, causing the internal threaded tube 19 to move along the limiting strip 15 through the limiting groove 20. This causes the electromagnet 22 at the lower end of the fixing plate 21 to contact the elevator floor. Energizing the electromagnet 22 allows it to adhere to the floor, thus fixing the device and preventing movement during use. When replacing the single-beam crane winch motor, the elevator is raised to support the motor, and the positioning screw is used... Connect the hoist motor drum housing to the second threaded hole 18 on the connecting frame 10, and then disassemble the hoist motor. After disassembly, the connecting plate 8 can be moved. The connecting plate 8 slides through the slide groove 17 and the slider in the connecting seat 7, so that the hoist motor can be moved to facilitate position adjustment. When replacing the new motor, after placing the new motor on the connecting frame 10, one person on the maintenance frame first fixes the two M12 positioning screws on the drum housing, attaches the flexible coupling to the motor shaft, and uses the lifting platform to adjust the motor height so that the center of the motor shaft and the center of the drum gearbox shaft are roughly on the same line. The diagonal screw holes of the motor are attached to the positioning screws, and the bolts are all in place, thus realizing the loading and unloading of the single beam crane hoist motor.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hoist motor auxiliary replacement device, comprising a bottom frame (1), characterized in that: The bottom frame (1) is fixedly connected to four corners of the bottom end with casters (2). The bottom frame (1) is fixedly connected to the upper end with a support frame (3). The support frame (3) is fixedly connected to the inside with a mounting frame (4). The mounting frame (4) is provided with a limit component (5) in the middle position. The upper left and right sides of the support frame (3) are fixedly connected to a first support plate (6). The upper surface of the first support plate (6) is fixedly connected to the front and rear sides with connecting seats (7). The left and right corresponding connecting seats (7) are provided with connecting plates (8). The connecting plates (8) are bolted together with two second support plates (9). The upper front and rear sides of the second support plate (9) are fixedly connected to a connecting frame (10).

2. The hoist motor auxiliary replacement device according to claim 1, characterized in that: The limiting component (5) includes a connecting pipe (11) fixedly connected to the mounting bracket (4). The upper end of the connecting pipe (11) is rotatably connected to a screw (14), and the upper end of the screw (14) is fixedly connected to an adjusting turntable (12).

3. The hoist motor auxiliary replacement device according to claim 2, characterized in that: Limiting strips (15) are fixedly connected to both sides of the inner wall of the connecting pipe (11). An internal threaded pipe (19) is provided inside the connecting pipe (11). The internal threaded pipe (19) is threadedly connected to the screw (14). Limiting grooves (20) are opened on both sides of the internal threaded pipe (19). The limiting grooves (20) are slidably connected to the corresponding limiting strips (15).

4. The hoist motor auxiliary replacement device according to claim 3, characterized in that: The bottom end of the internally threaded tube (19) is fixedly connected to a fixing plate (21), and electromagnets (22) are fixedly connected to the four corners of the bottom end of the fixing plate (21).

5. The hoist motor auxiliary replacement device according to claim 1, characterized in that: The connecting seat (7) has a limit slider (13) fixedly connected to both sides inside. The connecting plate (8) has a sliding groove (17) on both sides, and the sliding groove (17) is slidably connected to the corresponding limit slider (13).

6. The hoist motor auxiliary replacement device according to claim 1, characterized in that: The connecting plate (8) is provided with a plurality of first threaded holes (16), and the connecting frame (10) is provided with second threaded holes (18).