Traveling wheel of steel rail grinding trolley

By using a planetary motor-driven roller and threaded rod limiting groove structure, the problem of difficult movement of existing rail grinding trolleys has been solved, achieving stable movement and adapting to grinding of different rail spacings, thus improving the effectiveness of the device.

CN224119375UActive Publication Date: 2026-04-14SHANDONG ZHIWO RAIL TRANSIT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing rail grinding trolleys are heavy and use ordinary motors, which makes them difficult to move or cause excessive torque, making it difficult to move normally and adapt to the grinding needs of different rail spacings.

Method used

The device uses a planetary motor to drive four rollers to rotate simultaneously. Combined with an adjustable threaded rod and a limit groove structure, it enables flexible movement of the device and adapts to grinding different rail spacings. The combination design of the planetary motor and threaded rod ensures stable movement of the device on the rail and adapts to different rail specifications.

Benefits of technology

This technology enables stable movement of the rail grinding trolley and allows for grinding of rails with different spacings, improving the effectiveness and flexibility of the device and reducing usage limitations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel rail polishing trolley traveling wheel, which relates to the technical field of steel rail polishing, and comprises a steel rail polishing frame, a first mounting plate and a second mounting plate are arranged on two sides of the steel rail polishing frame, the first mounting plate is fixedly connected with the steel rail polishing frame, and the second mounting plate is fixedly connected with the steel rail polishing frame. The second mounting plate is in contact with a steel rail grinding frame, two rolling wheels are rotationally connected to the interior of each of the first mounting plate and the second mounting plate, chain wheels are fixedly connected to the surfaces of the two rolling wheels on the first mounting plate and the second mounting plate, and chains are in transmission connection to the surfaces of the two chain wheels. And a planetary motor is started, so that the four rolling wheels rotate at the same time to drive movement of the device, and therefore the situation that an existing steel rail grinding trolley is too heavy and cannot be pushed is avoided, normal movement of the device is guaranteed, and the using effect of the device is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of rail grinding technology, and in particular to the traveling wheel of a rail grinding trolley. Background Technology

[0002] The grinding trolley is the executing mechanism for grinding operations and a key component of the rail grinding train, playing a vital role in the process. Furthermore, the grinding actions, quality, efficiency, and sophistication of the grinding technology required by the grinding train are ultimately determined by the grinding trolley.

[0003] However, in the current rail grinding process, most of the time, a motor drives one side of the rail grinding trolley, and then the friction drives the equipment to slide horizontally on the surface of the rail. In conjunction with the grinding equipment, the rail is ground and polished to enable the train to run normally. However, the current traveling wheels are difficult to move due to the heavy weight of the rail grinding trolley and the high torque caused by using ordinary motors. Therefore, the rail grinding trolley traveling wheels were proposed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a rail grinding trolley travel wheel that can solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rail grinding trolley travel wheel, including a rail grinding frame, with a first mounting plate and a second mounting plate on both sides of the rail grinding frame. The first mounting plate is fixedly connected to the rail grinding frame, and the second mounting plate is in contact with the rail grinding frame. Two rollers are rotatably connected inside both the first and second mounting plates. Sprockets are fixedly connected to the surfaces of the two rollers on the first and second mounting plates. Chains are drivenly connected to the surfaces of the two sprockets. A limiting rod is fixedly connected to the mounting shaft surface of the roller on one side of the first mounting plate. The limiting rod is hexagonal. A rotating tube is fixedly connected to the mounting shaft surface of the roller on one side of the second mounting plate. The interior of the rotating tube is slidably connected to the surface of the limiting rod.

[0006] Preferably, a planetary motor is fixedly connected to the surface of the first mounting plate, the output end of the planetary motor is rotatably connected to the interior of the first mounting plate, and the output end of the planetary motor is fixedly connected to a roller.

[0007] Preferably, a protective shell is fixedly connected to the surface of both the first mounting plate and the second mounting plate, the chain and the sprocket are both located inside the protective shell, and the mounting shaft surface of the roller is rotatably connected to the inside of the protective shell.

[0008] Preferably, a fixed basket is fixedly connected to the bottom of the rail grinding frame, a push plate is slidably connected inside the fixed basket, an electric push rod is fixedly connected inside the fixed basket, and the output end of the electric push rod is fixedly connected to the push plate.

[0009] Preferably, a fixing tube is fixedly connected inside the fixing basket, and a sliding rod is slidably connected inside the fixing tube, with one end of the sliding rod fixedly connected to the push plate.

[0010] Preferably, the bottom of the push plate is provided with a pulley, and the surface of the pulley is in contact with the ground.

[0011] Preferably, the rail grinding frame has a limiting groove inside, a sliding frame is slidably connected to the inner wall of the limiting groove, a fixing plate is fixedly connected to the surface of the sliding frame, and the fixing plate is fixedly connected to the second mounting plate.

[0012] Preferably, the rail grinding frame is internally rotatably connected to a threaded rod, the surface of which is threadedly connected to the inside of the sliding frame, and the surface of which is rotatably connected to the inside of the protective shell.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The rail grinding trolley of this utility model is started by a planetary motor, which makes the four rollers rotate simultaneously to drive the movement of the equipment. This avoids the situation that the existing rail grinding trolley is too heavy to push, ensures the normal movement of the device, and further improves the use effect of the device.

[0015] (2) The bottom of the rail grinding frame of this utility model is fixedly connected to a fixed basket. A push plate is slidably connected inside the fixed basket. An electric push rod is fixedly connected inside the fixed basket 7. The output end of the electric push rod is fixedly connected to the push plate. A pulley is provided at the bottom of the push plate. The pulley is in contact with the ground, which facilitates the pushing and control of the equipment. At the same time, the height of the rail grinding frame can be adjusted according to the specifications and dimensions of the rail.

[0016] (3) A limiting groove is provided inside the rail grinding frame. A sliding frame is slidably connected to the inner wall of the limiting groove. A fixed plate is fixedly connected to the surface of the sliding frame. The fixed plate is fixedly connected to the second mounting plate. A threaded rod is rotatably connected inside the rail grinding frame. The surface of the threaded rod is threadedly connected to the inside of the sliding frame. The surface of the threaded rod is rotatably connected to the inside of the protective shell. By setting the limiting groove, the sliding frame will not rotate with the threaded rod, but will slide with the rotation of the threaded rod. Then the sliding frame pushes the fixed plate and the second mounting plate. The distance between the first mounting plate and the second mounting plate is adjusted according to the distance between the rails. This allows the device to grind rails with different spacing specifications, thereby reducing the usage limitations of the device and improving the usage effect of the device. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of the rail grinding frame of this utility model;

[0019] Figure 2 This is a schematic diagram of the surface structure of the limiting rod and rotating tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the fixed basket of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the protective shell of this utility model.

[0022] Reference numerals in the attached drawings: 1. First mounting plate; 2. Rail grinding frame; 3. Fixing plate; 4. Roller; 5. Protective shell; 6. Threaded rod; 7. Fixing basket; 8. Planetary motor; 9. Limiting rod; 10. Rotating tube; 11. Fixing tube; 12. Limiting groove; 13. Sliding frame; 14. Sliding rod; 15. Push plate; 16. Pulley; 17. Chain; 18. Sprocket; 19. Electric push rod; 20. Second mounting plate. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Please see Figure 1-4This utility model provides a technical solution: a rail grinding trolley with a traveling wheel, including a rail grinding frame 2. A first mounting plate 1 and a second mounting plate 20 are provided on both sides of the rail grinding frame 2. The first mounting plate 1 is fixedly connected to the rail grinding frame 2, and the second mounting plate 20 is in contact with the rail grinding frame 2. Two rollers 4 are rotatably connected inside both the first mounting plate 1 and the second mounting plate 20. Sprockets 18 are fixedly connected to the surfaces of the two rollers 4 on both the first mounting plate 1 and the second mounting plate 20. Chains 17 are drively connected to the surfaces of the two sprockets 18. A limiting rod 9 is fixedly connected to the mounting shaft surface of the roller 4 on one side of the first mounting plate 1, and the limiting rod 9 is hexagonal. A rotating tube 10 is fixedly connected to the mounting shaft surface of the roller 4 on one side of the second mounting plate 20. The interior of the rotating tube 10 is slidably connected to the surface of the limiting rod 9. Because the limiting rod 9 is hexagonal, it can drive the rotating tube 10 to rotate when rotating, thereby causing the rotating tube 10 to drive the roller 4 connected to it to rotate.

[0025] A planetary motor 8 is fixedly connected to the surface of the first mounting plate 1. The output end of the planetary motor 8 is rotatably connected to the inside of the first mounting plate 1. The output end of the planetary motor 8 is fixedly connected to the roller 4. The planetary motor 8 drives the roller 4 connected to it. The planetary motor 8 is an existing known device with the model number GA36Y-3525. This type of motor has a large torque and can drive the device.

[0026] The first mounting plate 1 and the second mounting plate 20 are both fixedly connected to protective shells 5. The chain 17 and the sprocket 18 are both located inside the protective shell 5, and the mounting shaft surface of the roller 4 is rotatably connected to the inside of the protective shell 5. By setting the protective shell 5, the chain 17 and the sprocket 18 are covered and protected, preventing the chain 17 and the sprocket 18 from being exposed to the outside.

[0027] The bottom of the rail grinding frame 2 is fixedly connected to a fixed basket 7, and a push plate 15 is slidably connected inside the fixed basket 7. An electric push rod 19 is fixedly connected inside the fixed basket 7, and the output end of the electric push rod 19 is fixedly connected to the push plate 15.

[0028] The fixed basket 7 is internally fixedly connected to a fixed tube 11, and the fixed tube 11 is internally slidably connected to a sliding rod 14. One end of the sliding rod 14 is fixedly connected to the push plate 15. The fixed tube 11 and the sliding rod 14 guide and limit the sliding of the push plate 15.

[0029] The bottom of the push plate 15 is provided with a pulley 16, the surface of which is in contact with the ground, making it easy to push and control the equipment.

[0030] The rail grinding frame 2 has a limiting groove 12 inside. A sliding frame 13 is slidably connected to the inner wall of the limiting groove 12. A fixing plate 3 is fixedly connected to the surface of the sliding frame 13. The fixing plate 3 is fixedly connected to the second mounting plate 20. A threaded rod 6 is rotatably connected inside the rail grinding frame 2. The surface of the threaded rod 6 is threadedly connected to the inside of the sliding frame 13. The surface of the threaded rod 6 is rotatably connected to the inside of the protective shell 5. By setting the limiting groove 12, the sliding frame 13 will not rotate with the threaded rod 6, but will slide with the rotation of the threaded rod 6. Thus, the sliding frame 13 pushes the fixing plate 3 and the second mounting plate 20.

[0031] Working principle: When the device needs to move the equipment onto the rails, the equipment is placed between the rails. By activating the electric push rod 19, the output end of the electric push rod 19 pushes the push plate 15, causing the push plate 15 to move down and lift the equipment. This raises the height of the roller 4 to be flush with the rail, making it easier to move the roller 4 onto the rail and facilitates the equipment to grind the rail.

[0032] Subsequently, the operator rotates the threaded rod 6. Due to the setting of the limiting groove 12, the sliding frame 13 does not rotate with the threaded rod 6, but slides with the rotation of the threaded rod 6. Then, the sliding frame 13 drives the second mounting plate 20 and the fixed plate 3 to move, adjusting the distance between the first mounting plate 1 and the second mounting plate 20. This allows the distance between the first mounting plate 1 and the second mounting plate 20 to be adjusted according to the distance between the rails, enabling the device to grind rails of different spacing specifications. This reduces the limitations of the device's use and improves its effectiveness.

[0033] After the device is adjusted, the operator starts the planetary motor 8, which drives the roller 4 connected to it to rotate. The roller 4 drives the sprocket 18 on its surface to rotate, which in turn drives another roller 4 on one side to rotate under the action of the chain 17. This, in turn, drives the limiting rod 9 to rotate. Due to the regular hexagonal shape of the limiting rod 9, the limiting rod 9 drives the rotating tube 10 to rotate. The rotating tube 10 drives the roller 4 connected to it to rotate. Thus, under the action of the chain 17 and the sprocket 18, the two rollers 4 on both sides of the equipment rotate, resulting in all four rollers 4 rotating simultaneously.

[0034] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rail grinding trolley with wheels, including a rail grinding frame (2), characterized in that: The rail grinding frame (2) is provided with a first mounting plate (1) and a second mounting plate (20) on both sides. The first mounting plate (1) is fixedly connected to the rail grinding frame (2), and the second mounting plate (20) is in contact with the rail grinding frame (2). The first mounting plate (1) and the second mounting plate (20) are rotatably connected to two rollers (4). The surfaces of the two rollers (4) on the first mounting plate (1) and the second mounting plate (20) are fixedly connected to sprockets (18). The surfaces of the two sprockets (18) are connected to chains (17). The mounting shaft surface of the roller (4) on one side of the first mounting plate (1) is fixedly connected to a limiting rod (9). The limiting rod (9) is hexagonal. The mounting shaft surface of the roller (4) on one side of the second mounting plate (20) is fixedly connected to a rotating tube (10). The interior of the rotating tube (10) is slidably connected to the surface of the limiting rod (9).

2. The rail grinding trolley's traveling wheel according to claim 1, characterized in that: A planetary motor (8) is fixedly connected to the surface of the first mounting plate (1). The output end of the planetary motor (8) is rotatably connected to the inside of the first mounting plate (1). The output end of the planetary motor (8) is fixedly connected to the roller (4).

3. The rail grinding trolley's traveling wheel according to claim 2, characterized in that: The first mounting plate (1) and the second mounting plate (20) are both fixedly connected to the protective shell (5). The chain (17) and the sprocket (18) are both located inside the protective shell (5). The mounting shaft surface of the roller (4) is rotatably connected to the inside of the protective shell (5).

4. The rail grinding trolley's traveling wheel according to claim 3, characterized in that: The bottom of the rail grinding frame (2) is fixedly connected to a fixed basket (7), and a push plate (15) is slidably connected inside the fixed basket (7). An electric push rod (19) is fixedly connected inside the fixed basket (7), and the output end of the electric push rod (19) is fixedly connected to the push plate (15).

5. The rail grinding trolley's traveling wheel according to claim 4, characterized in that: The fixed basket (7) is fixedly connected to a fixed tube (11), and a sliding rod (14) is slidably connected inside the fixed tube (11). One end of the sliding rod (14) is fixedly connected to the push plate (15).

6. The rail grinding trolley's traveling wheel according to claim 5, characterized in that: The bottom of the push plate (15) is provided with a pulley (16), and the surface of the pulley (16) is in contact with the ground.

7. The rail grinding trolley's traveling wheel according to claim 6, characterized in that: The rail grinding frame (2) has a limiting groove (12) inside. A sliding frame (13) is slidably connected to the inner wall of the limiting groove (12). A fixing plate (3) is fixedly connected to the surface of the sliding frame (13). The fixing plate (3) is fixedly connected to the second mounting plate (20).

8. The rail grinding trolley's traveling wheel according to claim 7, characterized in that: The rail grinding frame (2) is internally rotatably connected to a threaded rod (6), the surface of which is threadedly connected to the inside of the sliding frame (13), and the surface of which is rotatably connected to the inside of the protective shell (5).