Cable dragging device of coal mining machine

By designing components such as frames, conveyor wheels, brushes, and sponges on the coal mining machine, the problem of incomplete cable cleaning in the coal mining environment was solved, enabling damage-free cable transportation and clean monitoring, thus improving safety and service life.

CN224282626UActive Publication Date: 2026-05-26柳林县应急管理综合行政执法队

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
柳林县应急管理综合行政执法队
Filing Date
2025-07-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing cable dragging devices cannot effectively remove dust and foreign objects from the cable surface in coal mining environments, making it difficult to monitor the cable condition and posing safety risks.

Method used

A coal mining machine towing device was designed, comprising a frame, a conveyor wheel, a winding wheel, a brush, a hard sponge, and a soft sponge. It is used to clean foreign objects and dust from the surface of the cable and is driven by a motor to wind up the cable. Combined with warning lights and a camera to monitor the cable status, it ensures both cleaning effectiveness and safety.

Benefits of technology

It enables damage-free towing and transportation of cables and rapid cleaning, ensuring cable surfaces are clean, reducing wear, and providing real-time monitoring of cable status and regular replacement reminders, thereby improving safety and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cable dragging device of a coal mining machine, which relates to the technical field of coal mining and comprises a frame, a pair of delivery wheels are sequentially and rotatably connected to two sides of the inner wall of the frame, a pair of vertical plates are fixedly connected to one side of the top end of the frame, and a winding wheel is rotatably connected between the two vertical plates. According to the cable dragging device of the coal mining machine, due to the fact that the two pairs of conveying wheels are arranged in the frame, the cable dragging device of the coal mining machine can achieve the lossless dragging and transporting function on a cable of the coal mining machine in the moving process of the coal mining machine, cable abrasion is reduced, stable moving of the coal mining machine is guaranteed, and the cable dragging device of the coal mining machine is simple in structure and convenient to use. The winding wheel is matched with the motor, the cable collecting and winding functions can be achieved at the same time, the two scrubbing brushes, the two sponge hard erasers and the two sponge soft erasers are arranged between the two pairs of conveying wheels, and in the cable moving process, the scrubbing brushes are used for scrubbing firstly, and then the sponge hard erasers are used for removing stubborn dirt.
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Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, and in particular to a coal mining machine towing device. Background Technology

[0002] Coal mining machines are powered by electrical cables. During operation, the excavator arm needs to move continuously, and the cable needs to be laid out or retracted along with the arm. This causes the cable to be dragged during operation. To prevent the power supply cable from being excessively dragged and breaking due to tension, a cable dragging device is usually installed on the coal mining machine.

[0003] However, the existing cable-dragging devices have a relatively simple structure and function, and can only transport and wind cables. Since the cables are located in coal mines, the environment is highly polluted, and the surface of the cables is covered with a lot of dust and foreign matter, which can affect the transport and winding effect. In addition, due to the coverage of pollutants, the condition of the cables cannot be well monitored, which poses a safety risk. Utility Model Content

[0004] The purpose of this utility model is to provide a coal mining machine towing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal mining machine towing device, comprising a frame, a pair of conveying wheels rotatably connected to both sides of the inner wall of the frame, a pair of upright plates fixedly connected to one side of the top of the frame, a winding wheel rotatably connected between the two upright plates, and two brushes, two hard sponges and two soft sponges arranged between the two pairs of conveying wheels, with an end plate fixedly connected to one end of each of the two brushes, two hard sponges and two soft sponges;

[0006] Marking cylinders are snapped onto one side wall of each of the end plates. Multiple diagonal strips are fixedly connected to the inner wall of each marking cylinder. Small balls are provided inside each marking cylinder. Warning lights are embedded in both side walls of the frame. A first mounting plate and a second mounting plate are provided on one side of the inner wall of the frame. A supplementary light and a camera are installed sequentially at the bottom of the second mounting plate and the top of the first mounting plate.

[0007] As a preferred embodiment of this utility model, a motor is fixedly connected to one side wall of one of the upright plates, and the output end of the motor passes through the upright plate and is fixedly connected to one end of the winding wheel.

[0008] As a preferred embodiment of this utility model, the two brushes, the two hard sponges, and the two soft sponges are arranged opposite to each other, and the other ends of the two brushes, the two hard sponges, and the two soft sponges are all fixedly connected with inserts.

[0009] As a preferred technical solution of this utility model, the two brushes, the two hard sponges and the two soft sponges are respectively connected to the inner wall of the frame by multiple inserts.

[0010] As a preferred embodiment of this utility model, the multiple end plates are respectively engaged and connected to the two side walls of the frame.

[0011] As a preferred embodiment of this utility model, the top and bottom ends of the marking cylinder are both fitted with lids, and a push-button switch is installed on the top of one of the lids.

[0012] As a preferred embodiment of this utility model, the warning light is electrically connected to an external power supply via a push-button switch, and the supplementary light, camera, and motor are all electrically connected to an external power supply.

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

[0014] This utility model, by setting two pairs of conveyor wheels within the frame, enables the non-damaging dragging and transportation of cables during the movement of a coal mining machine, reducing cable wear and ensuring smooth movement. The included winding wheel, in conjunction with the motor, can simultaneously collect and wind up the cables. Between the two pairs of conveyor wheels are two brushes, two hard sponges, and two soft sponges. During cable movement, the brushes first clean the cable, then the hard sponges remove stubborn dirt, and finally the soft sponges remove residual dust, achieving rapid cleaning of the cable surface, exposing the outer sheath, which is beneficial for subsequent winding and transportation.

[0015] This utility model features end plates at one end for two brushes, two hard sponges, and two soft sponges, allowing for flexible disassembly and replacement of these components to ensure effective cleaning. A marking cylinder on one side, containing small balls and multiple diagonal strips, along with a push-button switch and warning light, can trigger the warning light at certain intervals to prevent exceeding the replacement time and ensure cleaning performance during use. The first and second mounting plates allow for monitoring of the cable's outer surface after cleaning, enabling maintenance personnel to observe the captured images and assess the cable's condition. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the brush of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the marking tube of this utility model;

[0019] Figure 4This is a schematic diagram of the structure of the first mounting plate of this utility model.

[0020] In the diagram: 1. Frame; 2. Upright plate; 3. Motor; 4. Rewind wheel; 5. Conveyor wheel; 6. Brush; 7. Hard sponge eraser; 8. Soft sponge eraser; 9. End plate; 10. Marking tube; 11. Warning light; 12. First mounting plate; 13. Second mounting plate; 14. Insert block; 15. Diagonal strip; 16. Small ball; 17. Push switch; 18. Fill light; 19. Camera. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution for a coal mining machine towing device: Example 1:

[0023] according to Figure 1 , Figure 2 As shown, a coal mining machine towing device includes a frame 1. A pair of conveyor wheels 5 are rotatably connected to both sides of the inner wall of the frame 1. A pair of upright plates 2 are fixedly connected to one side of the top of the frame 1. A winding wheel 4 is rotatably connected between the two upright plates 2. Two brushes 6, two hard sponge erasers 7, and two soft sponge erasers 8 are arranged between the two pairs of conveyor wheels 5. An end plate 9 is fixedly connected to one end of each of the two brushes 6, the two hard sponge erasers 7, and the two soft sponge erasers 8.

[0024] A motor 3 is fixedly connected to one side wall of one of the upright plates 2. The output end of the motor 3 passes through the upright plate 2 and is fixedly connected to one end of the winding wheel 4. Two brushes 6, two hard sponge erasers 7, and two soft sponge erasers 8 are arranged opposite to each other. The other ends of the two brushes 6, two hard sponge erasers 7, and two soft sponge erasers 8 are fixedly connected to the inserts 14. The two brushes 6, two hard sponge erasers 7, and two soft sponge erasers 8 are respectively engaged with the inner wall of the frame 1 through multiple inserts 14. Multiple end plates 9 are respectively engaged with the two side walls of the frame 1.

[0025] In practical use, this utility model provides a coal mining machine towing device. The operator can place the coal mining machine cable on multiple conveyor wheels 5 of the frame 1. With the help of the rolling conveyor wheels 5, the coal mining machine cable can be dragged and transported without damage. The motor 3 is connected to the power supply, and the motor 3 drives the winding wheel 4 to rotate, which can wind up the moving and transported cable. During the rolling and transporting process of the cable, its middle part passes between two oppositely arranged brushes 6, between two hard sponges 7, and between two soft sponges 8. In this way, the cable first passes between the two brushes 6 to wipe away foreign objects and impurities on its outer surface, and then enters between the two hard sponges 7 to wipe away more stubborn foreign objects and dust on the surface. Finally, it enters between the two soft sponges 8 to remove the remaining dirt and dust, realizing the rapid cleaning of the cable surface, exposing its outer skin, which is conducive to subsequent winding and transportation. Example 2:

[0026] Based on Example 1, such as Figure 1 and Figure 3 , Figure 4 As shown, a marking cylinder 10 is snapped onto one side wall of multiple end plates 9. Multiple inclined strips 15 are fixedly connected to the inner wall of the marking cylinder 10. The inclined strips 15 are elastic silicone supports. Under the pressure of the falling ball 16, they deform to allow the ball 16 to pass through, but also create resistance to its descent. The ball 16 is also supported by silicone, and there is a certain friction between it and the inclined strips 15, ensuring that the ball 16 does not fall to the bottom quickly. The marking cylinder 10 contains the ball 16, and both side walls of the frame 1 are... A warning light 11 is embedded in the frame 1. A first mounting plate 12 and a second mounting plate 13 are provided on one side of the inner wall of the frame 1. A supplementary light 18 and a camera 19 are installed sequentially at the bottom of the second mounting plate 13 and the top of the first mounting plate 12. The top and bottom of the marking cylinder 10 are both connected to a cover. A push switch 17 is installed on the top of one of the covers. The warning light 11 is electrically connected to an external power supply through the push switch 17. The supplementary light 18, the camera 19 and the motor 3 are all electrically connected to an external power supply.

[0027] In practical use, this utility model's coal mining machine towing device, after rapid cleaning during cable transportation, exposes the cable's outer sheath, clearly showing whether it has suffered damage, blackening, or other defects. At this time, the cable passes above the first mounting plate 12 and below the second mounting plate 13. The supplementary lights 18 and camera 19 on the first and second mounting plates 12 and 13 are pre-connected to power. The supplementary lights 18 emit light to increase ambient light intensity, and the camera 19 records the surface condition. Maintenance personnel can observe the captured images to assess the cable's condition. After a period of use, the small balls 16 in the corresponding marking cylinders 10 will slowly fall into the marking cylinders 10. As time goes by, the falling speed is controlled by the inclined strips 15. When the balls fall to the bottom and the pressing switch 17 is pressed, it is time to replace the brushes 6, the hard sponges 7, and the soft sponges 8. At this time, the pressing switch 17 is triggered and the warning light 11 on one side lights up. The operator can observe the warning light 11 to replace the brushes 6, the hard sponges 7, and the soft sponges 8 regularly to ensure the cleaning effect.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

Claims

1. A coal mining machine towing device, comprising a frame (1), characterized in that: A pair of conveyor wheels (5) are rotatably connected to both sides of the inner wall of the frame (1). A pair of upright plates (2) are fixedly connected to one side of the top of the frame (1). A winding wheel (4) is rotatably connected between the two upright plates (2). Two brushes (6), two hard sponge erasers (7) and two soft sponge erasers (8) are arranged between the two pairs of conveyor wheels (5). An end plate (9) is fixedly connected to one end of each of the two brushes (6), the two hard sponge erasers (7) and the two soft sponge erasers (8). Marking cylinders (10) are snapped onto one side wall of each of the end plates (9). Multiple diagonal strips (15) are fixedly connected to the inner wall of the marking cylinders (10). Small balls (16) are provided inside the marking cylinders (10). Warning lights (11) are embedded in both sides of the frame (1). A first mounting plate (12) and a second mounting plate (13) are provided on one side of the inner wall of the frame (1). A supplementary light (18) and a camera (19) are installed sequentially at the bottom of the second mounting plate (13) and the top of the first mounting plate (12).

2. The coal mining machine towing device according to claim 1, characterized in that: A motor (3) is fixedly connected to one side wall of one of the upright plates (2), and the output end of the motor (3) passes through the upright plate (2) and is fixedly connected to one end of the winding wheel (4).

3. The coal mining machine towing device according to claim 1, characterized in that: The two brushes (6), the two hard sponges (7) and the two soft sponges (8) are arranged opposite to each other, and the other ends of the two brushes (6), the two hard sponges (7) and the two soft sponges (8) are fixedly connected with inserts (14).

4. The coal mining machine towing device according to claim 3, characterized in that: The two brushes (6), the two hard sponge erasers (7) and the two soft sponge erasers (8) are respectively connected to the inner wall of the frame (1) by multiple inserts (14).

5. A coal mining machine towing device according to claim 1, characterized in that: The multiple end plates (9) are respectively engaged and connected to the two side walls of the frame (1).

6. A coal mining machine towing device according to claim 2, characterized in that: The top and bottom of the marking cylinder (10) are both fitted with a cover, and a push switch (17) is installed on the top of one of the covers.

7. A coal mining machine towing device according to claim 6, characterized in that: The warning light (11) is electrically connected to an external power source via a push switch (17), and the supplementary light (18), camera (19) and motor (3) are all electrically connected to an external power source.