A subway track cleaning and polishing device

Abstract

This utility model discloses a subway track cleaning and polishing device, relating to the field of subway track cleaning and polishing. It includes a fixed plate, with a battery fixedly installed on one side of the upper end of the fixed plate, and a control plate fixedly installed on the side of the upper end of the fixed plate away from the battery. Dual-axis motors are fixedly installed on both inner sides of the bottom of the fixed plate, and lead screws are fixedly installed on the output shafts of each dual-axis motor. Sliding blocks are threaded to the outer rings of the lead screws. Telescopic legs are fixedly installed on the bottom of each of the four sliding blocks. A support column is slidably installed on the outer ring of the telescopic leg away from the sliding block, and an anti-slip pad is fixedly installed on the end of the support column away from the telescopic leg. A telescopic cylinder is fixedly installed at the center of the bottom of the fixed plate. This utility model, using the above structure, ensures that the sliding blocks do not shift during sliding, maintaining the stability of the movement, effectively improving practicality, and can better adapt to tracks of different widths.

Description

Technical Field

[0001] This utility model belongs to the field of subway track cleaning and polishing, and specifically relates to a subway track cleaning and polishing device. Background Technology

[0002] When a train runs on the track, the train wheels generate enormous compressive and impact forces between the rails and the track. After long-term operation, various damages and wear will appear on the surface of some rail sections, such as wavy wear, rail surface abrasion, rail surface peeling, rail side wear, cracks, rail head crushing, and brittle edges. These not only affect passenger comfort but also pose safety hazards. Therefore, worn rail sections of trains need to be repaired regularly and irregularly using grinding equipment.

[0003] Existing technologies have specifically developed some subway track cleaning and polishing devices. For example, Chinese patent publication number "CN208151781U" discloses "A device for polishing tracks." The device is easy to move to the designated work location by pulling the handle. Support legs are fixedly installed at the four corners of the lower end of the support plate, and a fixing groove is opened in the middle of the support leg. An adjustment knob is threaded into one side of the support leg. By adjusting the knob, the pressure of the bottom end of the adjustment knob in the fixing groove is controlled and adjusted to adjust the height of the support leg, thereby controlling and adjusting the height of the device. This allows the device to be adapted to different terrains and facilitates the polishing of the tracks.

[0004] Although the device is easy to move to the designated work location by pulling the handle, and support legs are fixedly installed at the four corners of the lower end of the support plate, with a fixing groove in the middle of the support leg, and an adjustment knob is threaded into one side of the support leg, the height of the support leg can be adjusted by adjusting the pressure of the bottom of the adjustment knob in the fixing groove, thereby controlling and adjusting the height of the device. However, the support legs on both sides of the above structure cannot be effectively adjusted, which means that the above grinding device cannot effectively adapt to more tracks of different widths, reducing its practicality. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a subway track cleaning and polishing device to solve the problem of subway track cleaning and polishing.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A subway track cleaning and polishing device includes a fixed plate. A battery is fixedly installed on one side of the upper end of the fixed plate, and a control plate is fixedly installed on the side of the upper end of the fixed plate away from the battery. Dual-axis motors are fixedly installed on both sides of the bottom of the fixed plate. Lead screws are fixedly installed on the output shafts of the dual-axis motors. Sliding blocks are threadedly connected to the outer rings of the lead screws. Telescopic legs are fixedly installed on the bottom of the four sliding blocks. Support columns are slidably installed on the outer rings of the telescopic legs away from the sliding blocks. Anti-slip pads are fixedly installed on the outer rings of the support columns away from the telescopic legs. A telescopic cylinder is fixedly installed at the center of the bottom of the fixed plate. A threaded column is fixedly installed on the output shaft of the telescopic cylinder. A protruding plate is threadedly connected to the outer ring of the threaded column. A polishing device body is fixedly installed on one side of the protruding plate. Multiple polishing discs are rotatably installed on both sides inside the polishing device body. Three telescopic plates are slidably installed on the upper part of the polishing discs inside the polishing device body.

[0008] As a preferred technical solution, an mounting plate is fixedly installed on the upper end of the fixed plate, and both the battery and the control board are fixedly installed on the upper end of the mounting plate.

[0009] As a preferred technical solution, both the battery and the control board are fixedly mounted on the upper part of the mounting plate via a mounting plate, and two handles are fixedly mounted on both sides of the upper part of the mounting plate.

[0010] As a preferred technical solution, sliding grooves are provided on both sides of the bottom of the fixed plate, and the dual-axis motor is fixedly installed in the center of the sliding groove. The dual-axis motor is fixedly installed on both sides of the bottom of the fixed plate through the sliding groove.

[0011] As a preferred technical solution, an internal threaded groove is provided at the center of the sliding block. The sliding block is slidably installed in the bottom of the fixed plate through the sliding groove. The sliding block is threadedly connected to the lead screw through the internal threaded groove.

[0012] As a preferred technical solution, two limiting blocks are integrally formed on both sides of the sliding block, and limiting grooves are opened on both sides of the sliding groove, and the limiting blocks are slidably installed inside the limiting grooves.

[0013] As a preferred technical solution, the upper outer ring of the four support columns is internally threaded with a threaded fixing rod, and a fixing groove is opened on one side of the outer ring of the telescopic leg. The end of the threaded fixing rod near the telescopic leg is fixed inside the telescopic leg through the fixing groove.

[0014] As a preferred technical solution, the protruding plate has a threaded connection groove inside, and the threaded column is threadedly connected to the protruding plate through the threaded connection groove. Three threaded limiting rods are threadedly connected to one side of the upper end of the grinding device body, and the three threaded limiting rods rotate on one side of the upper end of the three telescopic plates.

[0015] In summary, the present invention has the following main advantages:

[0016] The dual-axis motors on both sides drive the lead screw to rotate. Since the sliding block has an internal threaded groove at its center and is threadedly connected to the lead screw through this groove, the sliding block slides within the bottom of the fixed plate through the sliding groove. The rotational motion of the lead screw is converted into the linear sliding motion of the sliding block. The integrally formed limiting blocks on both sides of the sliding block cooperate with the limiting grooves on both sides of the sliding groove to ensure that the sliding block does not deviate during the sliding process, maintains the stability of the movement, effectively improves practicality, and can better adapt to tracks of different widths. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the fixing plate of this utility model;

[0019] Figure 3 This is a schematic diagram of the threaded column structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the movable block structure of this utility model.

[0021] Reference numerals: 1. Battery; 2. Control panel; 3. Handle; 4. Fixing plate; 5. Mounting plate; 6. Threaded fixing rod; 7. Support column; 8. Anti-slip pad; 9. Telescopic cylinder; 10. Grinding device body; 11. Threaded limit rod; 12. Telescopic plate; 13. Grinding disc; 14. Telescopic leg; 15. Internal threaded groove; 16. Sliding block; 17. Limiting block; 18. Sliding groove; 20. Threaded column; 21. Limiting groove; 22. Dual-axis motor; 23. Fixing groove; 24. Protruding plate; 25. Threaded connection groove; 26. Lead screw. Detailed Implementation

[0022] Example

[0023] refer to Figures 1-4This embodiment of a subway track cleaning and grinding device includes a fixed plate 4. A battery 1 is fixedly installed on one side of the upper end of the fixed plate 4. A control plate 2 is fixedly installed on the side of the upper end of the fixed plate 4 away from the battery 1. Dual-axis motors 22 are fixedly installed on both sides of the bottom of the fixed plate 4. Lead screws 26 are fixedly installed on the output shafts of the dual-axis motors 22. Sliding blocks 16 are threadedly connected to the outer rings of the lead screws 26. Telescopic legs 14 are fixedly installed on the bottom of the four sliding blocks 16. The outer ring of the telescopic leg 14 away from the sliding block 16 slides. A support column 7 is installed, and an anti-slip pad 8 is fixedly installed at the end of the support column 7 away from the telescopic leg 14. A telescopic cylinder 9 is fixedly installed at the bottom center of the fixed plate 4. A threaded column 20 is fixedly installed on the output shaft of the telescopic cylinder 9. A protruding plate 24 is threadedly connected to the outer ring of the threaded column 20. A grinding device body 10 is fixedly installed on one side of the protruding plate 24. Multiple grinding discs 13 are rotatably installed on both sides inside the grinding device body 10. Three telescopic plates 12 are slidably installed on the upper part of the grinding discs 13 inside the grinding device body 10.

[0024] refer to Figures 1 to 3 Mounting plate 5 is fixedly installed on the upper end of mounting plate 4. Battery 1 and control board 2 are both fixedly installed on the upper end of mounting plate 5. Battery 1 and control board 2 are both fixedly installed on the upper end of mounting plate 4 via mounting plate 5. Two handles 3 are fixedly installed on both sides of the upper end of mounting plate 4. The staff can effectively lift the device through the handles 3, making it convenient for staff to use.

[0025] refer to Figures 2 to 3The fixed plate 4 has sliding grooves 18 on both sides of its bottom. A dual-axis motor 22 is fixedly installed in the center of the sliding groove 18. The sliding block 16 has two integrally formed limiting blocks 17 on both sides. Limiting grooves 21 are formed on both sides of the sliding groove 18. The limiting blocks 17 are slidably installed inside the limiting grooves 21. The integrally formed limiting blocks 17 on both sides of the sliding block 16 cooperate with the limiting grooves 21 inside the sliding groove 18 to ensure that the sliding block 16 does not deviate during sliding and maintains the stability of the movement. An internal thread groove 15 is formed in the center of the sliding block 16. The sliding block 16 is slidably installed in the bottom of the fixed plate 4 through the sliding groove 18. The screw 26 is threadedly connected to the upper outer ring of the four support columns 7. The upper outer ring of the support column 7 is threadedly connected to the threaded fixing rod 6. The outer ring of the telescopic leg 14 has a fixing groove 23 on one side. The end of the threaded fixing rod 6 near the telescopic leg 14 is fixed inside the telescopic leg 14 through the fixing groove 23. After the device moves to the target track position, the operator can adjust the extension length of the telescopic leg 14 in the support column 7 according to the actual track conditions. The threaded fixing rod 6, which is threadedly connected to the upper outer ring of the support column 7, cooperates with the fixing groove 23 on one side of the outer ring of the telescopic leg 14. After adjusting the length of the telescopic leg 14, tighten the threaded fixing rod 6 to fix the telescopic leg 14 to the support column 7, so that the anti-slip pad 8 at the end of the support column 7 is in close contact with the ground, providing stable support for the entire device and ensuring that the device will not shake or shift during the grinding operation.

[0026] refer to Figure 3 The protruding plate 24 has a threaded connection groove 25 inside, and the threaded column 20 is threadedly connected to the protruding plate 24 through the threaded connection groove 25. Three threaded limit rods 11 are threadedly connected to one side of the upper end of the grinding device body 10. The three threaded limit rods 11 rotate on one side of the upper end of the three telescopic plates 12. The three telescopic plates 12, which are slidably installed on the upper end of the grinding disc 13 inside the grinding device body 10, can be extended and retracted according to different conditions of the track surface. When the track surface is severely worn in a local area, the telescopic plate 12 at the corresponding position can be extended so that the grinding disc 13 can grind the area more deeply. When the track surface is relatively flat, the telescopic plate 12 is retracted to reduce the grinding depth of the grinding disc 13 and avoid over-grinding.

[0027] Operating principle and advantages: During use, the positioning and support functions of the subway track cleaning and grinding device are achieved collaboratively by components such as the dual-axis motor 22, lead screw 26, sliding block 16, telescopic leg 14, and support column 7 at the bottom of the fixed plate 4. When the dual-axis motor 22 is started on both sides of the bottom of the fixed plate 4, its output shaft drives the lead screw 26 to rotate. Since the sliding block 16 has an internal threaded groove 15 at its center, and is threadedly connected to the lead screw 26 through this groove, and simultaneously slides within the bottom of the fixed plate 4 through the sliding groove 18, the rotational motion of the lead screw 26 is converted into the linear sliding motion of the sliding block 16. The integrally formed limiting blocks 17 on both sides of the sliding block 16 cooperate with the limiting grooves 21 on both sides of the sliding groove 18 to ensure the sliding block 16 slides smoothly. During the process, no deviation occurs, maintaining the stability of the movement. As the sliding block 16 slides, the telescopic leg 14 fixedly installed at its bottom moves accordingly. After the device moves to the target track position, the operator can adjust the extension length of the telescopic leg 14 within the support column 7 according to the actual track conditions. The threaded fixing rod 6, which is internally threaded on the outer ring of the upper end of the support column 7, cooperates with the fixing groove 23 opened on one side of the outer ring of the telescopic leg 14. After adjusting the length of the telescopic leg 14, tighten the threaded fixing rod 6 to fix the telescopic leg 14 to the support column 7, so that the anti-slip pad 8 at the end of the support column 7 is in close contact with the ground, providing stable support for the entire device and ensuring that the device will not shake or shift during the grinding operation. The height adjustment of the grinding device body 10 is based on the center position of the bottom of the fixing plate 4. The grinding process is accomplished by a telescopic cylinder 9, a threaded column 20, and a raised plate 24. Activating the telescopic cylinder 9 causes its output shaft to drive the fixedly installed threaded column 20 to extend and retract. Since the outer ring of the threaded column 20 is threadedly connected to the threaded groove 25 inside the raised plate 24, the extension and retraction of the threaded column 20 is converted into the up-and-down movement of the raised plate 24. This, in turn, drives the grinding device body 10, which is fixedly installed on one side of the raised plate 24, to adjust its height. In this way, the height of the grinding device body 10 can be precisely adjusted according to the actual wear condition of the subway track and the cleaning and grinding requirements, ensuring that the grinding disc 13 can fully contact the track surface to achieve the ideal grinding effect. Once the grinding device body 10 is adjusted to the appropriate height, the grinding operation begins. Multiple grinding discs 13, mounted on both sides, rotate at high speed under external power. These rotating discs grind the subway track surface, removing rust, wear layers, and adhering impurities, thus cleaning and repairing the track surface. Simultaneously, three telescopic plates 12, slidably mounted on the upper part of the grinding discs 13 inside the grinding device body 10, can be adjusted to extend and retract according to different track surface conditions. When localized wear on the track surface is severe, the corresponding telescopic plates 12 can be extended, allowing the grinding discs 13 to grind that area more deeply. When the track surface is relatively flat, the telescopic plates 12 are retracted, reducing the grinding depth of the grinding discs 13 and preventing over-grinding. In this way, a refined grinding process is achieved on the track surface.To improve the quality and efficiency of grinding operations, a battery 1 fixedly installed on one side of the upper part of the fixed plate 4 provides power to the entire device. The operation of the dual-axis motor 22, the telescopic cylinder 9, and the rotation of the grinding disc 13 all rely on the battery 1 for power. The control board 2 on the other side of the upper part of the fixed plate 4 is the control center of the entire device. Operators can set and adjust parameters such as the start / stop and speed of the dual-axis motor 22, the extension / retraction amount of the telescopic cylinder 9, and the rotation speed of the grinding disc 13 through the operating interface on the control board 2. Based on the instructions input by the operator, the control board 2 controls the various components to work collaboratively, achieving automated operation of the device and meeting different subway track cleaning and grinding needs.

Claims

1. A subway track cleaning and polishing device, comprising a fixing plate (4), characterized in that: A battery (1) is fixedly installed on one side of the upper end of the fixed plate (4). A control plate (2) is fixedly installed on the side of the upper end of the fixed plate (4) away from the battery (1). A dual-axis motor (22) is fixedly installed on both sides of the bottom of the fixed plate (4). A lead screw (26) is fixedly installed on the output shaft of each dual-axis motor (22). A sliding block (16) is threaded onto the outer ring of each lead screw (26). A telescopic leg (14) is fixedly installed on the bottom of each of the four sliding blocks (16). A support column (7) is slidably installed on the outer ring of the telescopic leg (14) away from the sliding block (16). An anti-slip pad (8) is fixedly installed at the end of the column (7) away from the telescopic leg (14). A telescopic cylinder (9) is fixedly installed at the center of the bottom of the fixed plate (4). A threaded column (20) is fixedly installed on the output shaft of the telescopic cylinder (9). A protruding plate (24) is threadedly connected to the outer ring of the threaded column (20). A grinding device body (10) is fixedly installed on one side of the protruding plate (24). Multiple grinding discs (13) are rotatably installed on both sides inside the grinding device body (10). Three telescopic plates (12) are slidably installed on the upper end of the grinding discs (13) inside the grinding device body (10).

2. The subway track cleaning and polishing device according to claim 1, characterized in that: The mounting plate (5) is fixedly installed on the upper end of the fixing plate (4), and the battery (1) and the control board (2) are both fixedly installed on the upper end of the mounting plate (5).

3. The subway track cleaning and polishing device according to claim 2, characterized in that: The battery (1) and the control board (2) are both fixedly mounted on the upper end of the fixed plate (4) by the mounting plate (5), and two handles (3) are fixedly mounted on both sides of the upper end of the fixed plate (4).

4. The subway track cleaning and polishing device according to claim 1, characterized in that: The bottom of the fixed plate (4) is provided with sliding grooves (18) on both sides. The dual-axis motor (22) is fixedly installed in the center of the sliding groove (18). The dual-axis motor (22) is fixedly installed in the bottom of the fixed plate (4) on both sides through the sliding groove (18).

5. The subway track cleaning and grinding device according to claim 1, characterized in that: The sliding block (16) has an internal thread groove (15) at its center. The sliding block (16) is slidably installed in the bottom of the fixed plate (4) through the sliding groove (18). The sliding block (16) is threadedly connected to the lead screw (26) through the internal thread groove (15).

6. The subway track cleaning and grinding device according to claim 4, characterized in that: The sliding block (16) has two integrally formed limiting blocks (17) on both sides. The sliding groove (18) on both sides has a limiting groove (21) on both sides. The limiting block (17) is slidably installed inside the limiting groove (21).

7. The subway track cleaning and grinding device according to claim 1, characterized in that: The upper outer ring of the four support columns (7) is threaded with a threaded fixing rod (6). The outer ring of the telescopic leg (14) is provided with a fixing groove (23). The end of the threaded fixing rod (6) close to the telescopic leg (14) is fixed inside the telescopic leg (14) through the fixing groove (23).

8. The subway track cleaning and polishing device according to claim 1, characterized in that: The protruding plate (24) has a threaded connection groove (25) inside. The threaded column (20) is threadedly connected to the protruding plate (24) through the threaded connection groove (25). Three threaded limiting rods (11) are threadedly connected to one side of the upper end of the grinding device body (10). The three threaded limiting rods (11) rotate on one side of the upper end of the three telescopic plates (12).

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