A self-propelled subway track cleaning and grinding equipment

Abstract

This utility model belongs to the field of track maintenance technology and discloses a self-propelled subway track cleaning and grinding equipment, including a frame. Transmission pipes are rotatably connected to the lower ends of both sides of the frame, with transmission rods passing through both ends of the transmission pipes. Rollers are connected to the outer sides of the transmission rods. A power motor is fixed in the middle of the frame. A transmission plate is set at the lower end of the frame. A dual-axis motor is fixed at the upper end of the frame, with threaded screws connected to both ends of the dual-axis motor. The threaded screws are connected to the transmission plate. Positioning frames are fixed at the upper ends of both sides of the frame, with a grinding motor at the lower end of the positioning frames. A grinding pipe is connected to the lower end of the grinding motor, and a grinding rod is connected to the lower end of the grinding pipe. The grinding disc is connected to the lower end of the grinding rod. This self-propelled subway track cleaning and grinding equipment, with its power transmission structure, can drive the grinding equipment to move autonomously, reducing manual labor intensity and improving overall work efficiency. Combined with a wheel gauge adjustment structure, the relative distance between the two rollers can be flexibly adjusted to adapt to different track gauges and working conditions.

Description

Technical Field

[0001] This utility model relates to the field of track maintenance technology, specifically a self-propelled subway track cleaning and grinding device. Background Technology

[0002] As a crucial component of urban public transportation, the safety and stability of the subway's track system directly impact train operation efficiency and passenger safety. Over long-term use, the track surface is susceptible to wear, rust, burrs, and other deposits due to factors such as train wheel friction, external environmental factors (e.g., dust, oil, rainwater corrosion), and geological subsidence. If not addressed promptly, these issues can lead to increased vibration and noise during train operation, and even safety hazards such as poor wheel-rail contact and track deformation. Therefore, regular cleaning and polishing maintenance of the tracks is essential.

[0003] An existing subway track maintenance and repair device, such as the one described in Chinese patent application number CN202221944710.6, includes a maintenance car body, a limiting slide groove, and a grinding mechanism. The limiting slide groove is located on one side of the upper surface of the maintenance car body, and the grinding mechanism is slidably connected inside the limiting slide groove and can slide back and forth within the limiting slide groove. The grinding mechanism consists of a connecting block, a connecting screw hole, and a grinder. The connecting screw hole is located on the upper surface of the connecting block and extends through the connecting block to the other side. The grinder is embedded in the outer wall of the connecting block. However, the existing equipment has relatively poor grinding effect during use, and the pressure and contact state between the grinding mechanism and the rail are difficult to control precisely.

[0004] Therefore, we propose a self-propelled subway track cleaning and grinding equipment to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a self-propelled subway track cleaning and grinding device to solve the problems mentioned in the background art, such as the low grinding and cleaning efficiency of existing equipment and the inability to effectively control and maintain the pressure between the grinding structure and the rail.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-propelled subway track cleaning and polishing device, comprising a frame:

[0007] The lower ends of both sides of the frame are rotatably connected to transmission pipes, with transmission rods passing through both ends of the transmission pipes. Rollers are connected to the outer side of the transmission rods. A power motor is fixed in the middle of the frame. A transmission plate is set at the lower end of the frame. A dual-axis motor is fixed at the upper end of the frame. Threaded screws are connected to both ends of the dual-axis motor. The threaded screws are connected to the transmission plate.

[0008] Positioning frames are fixed at the upper ends of both sides of the frame. A grinding motor is installed at the lower end of the positioning frame. The lower end of the grinding motor is connected to a grinding tube, the lower end of the grinding tube is connected to a grinding rod, and the lower end of the grinding rod is connected to a grinding disc.

[0009] Preferably, the transmission tube is slidably connected to the transmission rod, and the transmission rod has a square design. The power motor is connected to a drive sprocket at the rear, and a driven sprocket is fixed in the middle of the transmission tube. A transmission chain connects the drive sprocket and the driven sprocket.

[0010] Using the above technical solution, the drive sprocket can be driven to rotate by a power motor. The rotation of the drive sprocket drives the driven sprocket, transmission tube, transmission rod and roller to rotate synchronously by the transmission chain, thereby providing the driving power for the cleaning and polishing equipment.

[0011] Preferably, the two ends of the transmission plate are fixed to the transmission rod, and the upper end of the transmission plate is slidably connected to the frame, and the upper end of the transmission plate is threadedly connected to the threaded screw.

[0012] Using the above technical solution, a dual-axis motor can drive the threaded screw to rotate, the rotation of the threaded screw can drive the transmission plate to move, and the movement of the transmission plate can drive the transmission rod and rollers to move synchronously, thereby changing the relative distance between the front and rear rollers.

[0013] Preferably, an electric push rod is fixed to the upper end of the positioning frame, and the lower end of the electric push rod is fixed to the grinding motor. The grinding motor is fitted with a housing, and limit rods pass through both ends of the housing. The upper end of the limit rod is fixed to the positioning frame.

[0014] Using the above technical solution, the grinding motor can be raised and lowered by an electric push rod. When the electric push rod extends, it can drive the grinding disc downward to contact the rail. When the grinding disc rotates, the surface of the rail can be ground.

[0015] Preferably, the grinding tube and the grinding rod are slidably connected. The grinding rod has a square design. A pressure spring is installed inside the grinding tube, and the two ends of the pressure spring are respectively connected to the inner wall of the grinding tube and the grinding rod.

[0016] Using the above technical solution, the grinding rod and the grinding tube are slidably connected, allowing the grinding disc to extend and retract on its own, and the pressure spring can push the grinding rod and the grinding disc downward to apply pressure.

[0017] Preferably, a support frame is connected to the right side of the grinding tube, and the support frame is designed in an "L" shape. A cleaning block is fixed at the lower end of the support frame, and the cleaning block matches the rail.

[0018] Using the above technical solution, the cleaning block and the grinding tube can be connected by a support frame, so that the cleaning block can be driven to move synchronously when the grinding tube is raised and lowered. After the cleaning block comes into contact with the rail, the ground rail can be further cleaned during the movement of the equipment.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the self-propelled subway track cleaning and grinding equipment;

[0020] 1. The power transmission structure enables the grinding equipment to move autonomously, reducing manual labor intensity and improving overall work efficiency. Combined with the wheel track adjustment structure, the relative distance between the two rollers can be flexibly adjusted to adapt to different track gauges and working conditions.

[0021] 2. With the addition of an adaptive grinding adjustment structure, the pressure and contact state between the grinding disc and the rail can be reasonably controlled during use, ensuring the grinding state and avoiding the impact of excessive or insufficient pressure on the grinding and cleaning effect. In addition, with the addition of a cleaning structure, the dust generated during grinding can be cleaned up after grinding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0024] Figure 3 This is a schematic diagram of the drive sprocket and transmission chain structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the transmission tube and driven sprocket structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the positioning frame and electric push rod structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the pressure spring and grinding rod structure of this utility model.

[0028] In the diagram: 1. Frame; 2. Transmission tube; 3. Transmission rod; 4. Roller; 5. Power motor; 6. Drive sprocket; 7. Driven sprocket; 8. Transmission chain; 9. Transmission plate; 10. Dual-axis motor; 11. Threaded screw; 12. Positioning frame; 13. Grinding motor; 14. Grinding tube; 15. Grinding rod; 16. Grinding disc; 17. Compression spring; 18. Support frame; 19. Cleaning block; 20. Electric push rod; 21. Limit rod. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a self-propelled subway track cleaning and polishing device, including a frame 1. Transmission pipes 2 are rotatably connected to the lower ends of both sides of the frame 1. Transmission rods 3 pass through both ends of the transmission pipes 2, and rollers 4 are connected to the outer sides of the transmission rods 3. The rollers 4 have a conical design and are made entirely of rubber. A power motor 5 is fixed in the middle of the frame 1. The transmission pipes 2 and transmission rods 3 are slidably connected, and the transmission rods 3 have a square design. A drive sprocket 6 is connected to the rear of the power motor 5. A driven sprocket 7 is fixed in the middle of the transmission pipes 2, and a transmission chain 8 connects the drive sprocket 6 and the driven sprocket 7. The two sets of transmission pipes 2 can be connected to the transmission rods 3, and the transmission rods 3 are used to connect the rollers 4. When the device is in use, the rollers 4 are supported above the track. The power motor 5 drives the drive sprocket 6 to rotate. When the drive sprocket 6 rotates, the transmission chain 8 drives the driven sprocket 7, transmission pipes 2, transmission rods 3, and rollers 4 to rotate synchronously, thus providing power for the device's autonomous movement.

[0031] A transmission plate 9 is installed at the lower end of frame 1, and a dual-axis motor 10 is fixed at the upper end of frame 1. Both ends of the dual-axis motor 10 are connected to threaded screws 11, which are connected to the transmission plate 9. Both ends of the transmission plate 9 are fixed to the transmission rod 3, and the upper end of the transmission plate 9 is slidably connected to frame 1. The upper end of the transmission plate 9 is threadedly connected to the threaded screw 11. The connection between the transmission plate 9 and the transmission rod 3, and the slidable connection between the transmission plate 9 and frame 1, improves the stability of the rollers 4 and the transmission rod 3. When the dual-axis motor 10 rotates, it drives the threaded screw 11 to rotate. The rotation of the threaded screw 11 drives the positions of the transmission plate 9, transmission rod 3, and rollers 4, adjusting the spacing between the rollers 4 on both sides to adapt to different track gauges and working conditions.

[0032] Positioning frames 12 are fixed to the upper ends of both sides of the frame 1. A grinding motor 13 is installed at the lower end of the positioning frame 12. The lower end of the grinding motor 13 is connected to the grinding tube 14. The lower end of the grinding tube 14 is connected to the grinding rod 15, and the lower end of the grinding rod 15 is connected to the grinding disc 16. An electric push rod 20 is fixed to the upper end of the positioning frame 12. The lower end of the electric push rod 20 is fixed to the grinding motor 13. The grinding motor 13 is covered with a housing. Limiting rods 21 pass through both ends of the housing. The upper end of the limiting rods 21 is fixed to the positioning frame 12. The grinding tube 14 and the grinding rod 15 are slidably connected. The grinding rod 15 is square. A pressure spring 17 is installed inside the grinding tube 14. The two ends of the pressure spring 17 are connected to the inner wall of the grinding tube 14 and the grinding rod 15, respectively. A support frame 18 is connected to the right side of the grinding tube 14. The support frame 18 is L-shaped. A cleaning block 19 is fixed to the lower end of the support frame 18. The cleaning block 19 matches the rail. The grinding motor 13 can be connected to the positioning frame 12 via its external housing and limiting rod 21. The limiting rod 21 improves the stability of the grinding motor 13 during its vertical movement. The extension and retraction of the electric push rod 20 controls the lifting and lowering of the housing, grinding motor 13, and grinding structure. The grinding tube 14 is slidably connected to the grinding rod 15, and a pressure spring 17 is installed inside the grinding tube 14 to push the grinding rod 15 downward, maintaining appropriate pressure and contact between the grinding disc 16 and the track to ensure the grinding effect. Simultaneously, the cleaning block 19 is driven to move synchronously by the support frame 18 when the grinding tube 14 is raised and lowered. The cleaning block 19 can contact the rail and clean up the debris after the rail is ground during the equipment's movement.

[0033] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-propelled subway track cleaning and grinding device, comprising a frame (1), characterized in that: The lower ends of both sides of the frame (1) are rotatably connected to transmission pipes (2), and transmission rods (3) pass through both ends of the transmission pipes (2). Rollers (4) are connected to the outside of the transmission rods (3). A power motor (5) is fixed in the middle of the frame (1). A transmission plate (9) is set at the lower end of the frame (1). A dual-axis motor (10) is fixed at the upper end of the frame (1). Threaded screws (11) are connected to both ends of the dual-axis motor (10). Threaded screws (11) are connected to the transmission plate (9). The upper ends of both sides of the frame (1) are fixed with positioning frames (12), and the lower end of the positioning frames (12) is equipped with a grinding motor (13). The lower end of the grinding motor (13) is connected to a grinding tube (14), the lower end of the grinding tube (14) is connected to a grinding rod (15), and the lower end of the grinding rod (15) is connected to a grinding disc (16).

2. The self-propelled subway track cleaning and grinding equipment according to claim 1, characterized in that: The transmission tube (2) is slidably connected to the transmission rod (3), and the transmission rod (3) is square in design. The power motor (5) is connected to the rear side of the drive sprocket (6), the driven sprocket (7) is fixed in the middle of the transmission tube (2), and the drive sprocket (6) and the driven sprocket (7) are connected by a transmission chain (8).

3. The self-propelled subway track cleaning and grinding equipment according to claim 1, characterized in that: The transmission plate (9) is fixed at both ends to the transmission rod (3), and the upper end of the transmission plate (9) is slidably connected to the frame (1). The upper end of the transmission plate (9) is threadedly connected to the threaded screw (11).

4. The self-propelled subway track cleaning and grinding equipment according to claim 1, characterized in that: The upper end of the positioning frame (12) is fixed with an electric push rod (20), and the lower end of the electric push rod (20) is fixed with a grinding motor (13). The grinding motor (13) is covered with a housing, and the two ends of the housing are connected by limit rods (21). The upper end of the limit rods (21) is fixed with the positioning frame (12).

5. The self-propelled subway track cleaning and grinding equipment according to claim 1, characterized in that: The grinding tube (14) is slidably connected to the grinding rod (15). The grinding rod (15) is square in design. A pressure spring (17) is provided inside the grinding tube (14), and the two ends of the pressure spring (17) are respectively connected to the inner wall of the grinding tube (14) and the grinding rod (15).

6. The self-propelled subway track cleaning and grinding equipment according to claim 1, characterized in that: The grinding tube (14) is connected to a support frame (18) on the right side, and the support frame (18) is designed in an "L" shape. A cleaning block (19) is fixed at the lower end of the support frame (18), and the cleaning block (19) matches the rail.

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