A coal mine tunneling towline device
By designing a coal mine tunneling cable dragging device with a lifting plate and hydraulic cylinder support structure, the clamping and angle adjustment of the cable were realized, solving the problems of cable dragging on the ground and insufficient mobility during the construction of the roadheader, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANCHEN COAL MINE OF ZAOZHUANG MINING GRP
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-23
Smart Images

Figure CN224401134U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of coal mine cable dragging equipment, specifically a coal mine tunneling cable dragging device. Background Technology
[0002] Roadheaders are widely used in existing coal mining. During tunneling operations, roadheaders require cables to provide power. In the complex working environment of underground coal mines, cable maintenance is related to the construction efficiency of roadheaders. Poor cable maintenance can lead to downtime accidents. At the same time, it is also necessary to avoid safety issues such as contact points caused by cable damage. As the roadheader moves forward and backward during construction, it is necessary to solve the problems of cables dragging on the ground at the tunneling face and insufficient mobility as the length increases. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a coal mine tunneling cable dragging device. Its main advantages are: lifting plates are installed on both sides of the device; a single hydraulic cylinder supports and raises both lifting plates; a spring structure is installed at the connection between one lifting plate and the hydraulic cylinder to allow for relative height adjustment of the two lifting plates; a support roller is installed inside one lifting plate, and a cable drive device is installed inside the other lifting plate; the distance between the support roller and the drive device is adjusted by the relative raising and lowering of the two lifting plates, thus clamping the cable structure; the clamping space can be adjusted to accommodate cables of different diameters; the cable height can be adjusted by raising the hydraulic cylinder to reduce cable dragging; and an angle adjustment mechanism is installed at the front of the device to adjust the cable exit angle.
[0004] To achieve the above objectives, this utility model employs the following technical solution:
[0005] A coal mine tunneling cable-dragging device includes a base plate. Lifting plate columns are fixedly mounted at the four corners of the upper part of the base plate. A lifting plate is slidably connected to the outer periphery of one of the lifting plate columns, and a spring lifting plate is slidably connected to the outer periphery of the other lifting plate column. A hydraulic cylinder is fixedly mounted at the center of the upper part of the base plate. A support frame is fixedly mounted on one side of the telescopic end of the hydraulic cylinder and fixedly connected to the bottom of the lifting plate. A spring support frame is fixedly mounted on one side of the telescopic end of the hydraulic cylinder. A spring rod is fixedly mounted on the upper part of the spring support frame, passing through the spring lifting plate and slidably connected to it. Limiting discs are fixedly mounted on the upper and lower sides of the spring rod. A supporting spring is mounted on the outer periphery of the spring rod and abuts against the bottom of the spring lifting plate.
[0006] Furthermore, the lifting plate and the upper surface of the spring lifting plate are provided with a plurality of bolt holes at equal intervals on their inner sides. The inner side of the lifting plate is provided with a plurality of supporting roller column support frames at equal intervals. A plurality of bolts are installed inside the bolt holes of each supporting roller column support frame. A roller column support rod is fixedly installed inside the supporting roller column support frame. Supporting rollers are rotatably connected to the outer circumference of each roller column support rod. The inner side of the spring lifting plate is provided with a plurality of power belt support plate frames at equal intervals. A plurality of bolts are installed inside each power belt support plate frame, with corresponding bolt holes inside each power belt support plate frame. A power belt support plate is fixedly installed inside the power belt support plate frame. Servo motors are fixedly installed on both sides of the inner side of the power belt support plate. The output end of each servo motor passes through the power belt support plate and is rotatably connected to it. A power belt drive wheel is fixedly connected to the output end of each servo motor. A power belt is sleeved around the outer circumference of each power belt drive wheel on both sides.
[0007] Furthermore, an adjusting plate support frame is fixedly provided on the inner side of the front part of the lifting plate. Bolt three is installed inside the adjusting plate support frame and is fitted into the corresponding bolt holes. An adjusting plate is fixedly provided on the inner side of the adjusting plate support frame. An adjusting hole is circumferentially opened on the outer side of the adjusting plate. An adjusting rod support column is fixedly provided on the inner side of the adjusting plate. An adjusting rod is rotatably connected to the outer circumference of the adjusting rod support column. An adjusting spring pull rod support plate is fixedly provided at the end of the adjusting rod. An adjusting spring pull rod is fixedly provided on the outer side of the adjusting spring pull rod support plate. The adjusting spring pull rod can be inserted into the adjusting hole. A guide wheel one is rotatably connected to the outer circumference of the adjusting rod support column. A guide wheel two is rotatably connected to the inner side of the middle part of the adjusting rod.
[0008] Furthermore, a height adjustment sleeve is fitted around the outer periphery of the lifting plate column on one side that is connected to the spring lifting plate. A fixed knob is provided on one side of the height adjustment sleeve for threaded engagement and its end can abut against the lifting plate column. A height adjustment rod is fixedly provided on one side of the height adjustment sleeve.
[0009] Compared with the existing technology, the beneficial effects of this utility model are:
[0010] 1. By setting lifting plates on both sides of the device, and further supporting the lifting of the two lifting plates with a single set of hydraulic cylinders, and further setting a spring structure support structure at the connection between one lifting plate and the hydraulic cylinder, the relative height of the two lifting plates can be adjusted. A support roller is set on the inner side of one lifting plate, and a cable power drive device is set on the inner side of the other lifting plate. By adjusting the distance between the support roller and the drive device through the relative lifting of the two lifting plates, the cable structure can be clamped. The clamping space can be adjusted to adapt to the specifications of cables of different diameters. Furthermore, the drive device drives the cable to solve the problem of difficulty in dragging the cable forward when it is too long.
[0011] 2. Further adjustments to the hydraulic cylinder height can reduce cable dragging. An angle adjustment mechanism is also installed at the front of the device to adjust the cable exit angle to adapt to different tunneling equipment and the internal structure of the mine pit. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the structure of this utility model;
[0015] Figure 4 This is a schematic diagram of the support frame structure of this utility model;
[0016] Figure 5 This is a schematic diagram of the supporting roller structure of this utility model;
[0017] Figure 6 This is a schematic diagram of the power belt structure of this utility model;
[0018] Figure 7 This is a schematic diagram of the structural adjustment plate of this utility model.
[0019] The following are the labels in the attached diagram: 1. Base plate; 2. Lifting plate column; 3. Lifting plate; 4. Spring lifting plate; 5. Hydraulic cylinder; 6. Support frame; 7. Spring support frame; 8. Spring rod; 9. Limiting plate; 10. Support spring;
[0020] 11. Bolt hole; 12. Support roller column support frame; 13. Bolt 1; 14. Roller column support rod; 15. Support roller; 16. Power belt support plate frame; 17. Bolt 2; 18. Power belt support plate; 19. Servo motor; 20. Power belt drive wheel; 21. Power belt;
[0021] 22. Adjusting plate support frame; 23. Bolt 3; 24. Adjusting plate; 25. Adjusting hole; 26. Adjusting rod support column; 27. Adjusting rod; 28. Adjusting spring tie rod support plate; 29. Adjusting spring tie rod; 30. Guide wheel 1; 31. Guide wheel 2;
[0022] 32. Height adjustment sleeve; 33. Fixing knob; 34. Height adjustment rod. Detailed Implementation
[0023] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0024] Example: A coal mine tunneling cable-stayed device
[0025] like Figure 1-7 As shown, a coal mine tunneling cable-stayed device has the following specific structure:
[0026] A coal mine tunneling cable-dragging device includes a base plate 1. Lifting plate columns 2 are fixedly installed at the four corners of the upper part of the base plate 1. A lifting plate 3 is slidably connected to the outer periphery of one side of the lifting plate column 2, and a spring lifting plate 4 is slidably connected to the outer periphery of the other side of the lifting plate column 2. A hydraulic cylinder 5 is fixedly installed at the center of the upper part of the base plate 1. A support frame 6 is fixedly installed on one side of the telescopic end of the hydraulic cylinder 5 and is fixedly connected to the bottom of the lifting plate 3. A spring support frame 7 is fixedly installed on one side of the telescopic end of the hydraulic cylinder 5. A spring rod 8 is fixedly installed on the upper part of the spring support frame 7, passing through the spring lifting plate 4 and slidably connected to it. Limiting discs 9 are fixedly installed on the upper and lower sides of the spring rod 8. A support spring 10 is fitted around the outer periphery of the spring rod 8 and abuts against the bottom of the spring lifting plate 4. The hydraulic cylinder 5 directly pushes the lifting plate 3 to rise and fall by telescoping, while the spring support frame 7 drives the spring rod 8 to drive the spring lifting plate 4 to rise and fall.
[0027] The lifting plate 3 and the spring lifting plate 4 have several bolt holes 11 evenly spaced on their inner upper surfaces. The lifting plate 3 has several supporting roller column support frames 12 evenly spaced on its inner side. Each supporting roller column support frame 12 has several bolts 13 installed inside the bolt holes 11, fixing the supporting roller column support frame 12 to the bolt holes 11. The position of the supporting roller column support frame 12 can be adjusted by placing the bolts 13 in different positions. A roller column support rod 14 is fixedly installed inside the supporting roller column support frame 12, and a supporting roller 15 is rotatably connected to the outer circumference of the roller column support rod 14. Multiple sets of supporting rollers 15 support the cable. The spring lifting plate 4 has several power belt support plate frames 16 evenly spaced on its inner side, each with several bolts inside. Bolt 17 is installed inside the corresponding bolt hole 11. The power belt support plate 16 is fixed inside the bolt hole 11 by bolt 17. The position of the support roller column support frame 12 is adjusted by setting bolt 17 in different positions of the bolt hole 11. A power belt support plate 18 is fixedly provided on the inner side of the power belt support plate 16. Servo motors 19 are fixedly provided on both sides of the inner side of the power belt support plate 18. The output end of the servo motor 19 passes through the power belt support plate 18 and is rotatably connected to it. A power belt drive wheel 20 is fixedly connected to the output end of the servo motor 19. A power belt 21 is sleeved on the outer circumference of the power belt drive wheels 20 on both sides. The servo motor 19 drives the power belt drive wheels 20 on both sides to rotate, thereby driving the power belt 21 to rotate and move. The power belt 21 then contacts and pushes the cable through its surface.
[0028] An adjusting plate support frame 22 is fixedly provided on the inner front side of the lifting plate 3. Bolts 23 are installed inside the adjusting plate support frame 22 and are fitted into corresponding bolt holes 11. The adjusting plate support frame 22 is fixed to the bolt holes 11 by the bolts 23. The position of the adjusting plate support frame 22 is adjusted by placing the bolts 23 in different positions within the bolt holes 11. An adjusting plate 24 is fixedly provided on the inner side of the adjusting plate support frame 22. Adjusting holes 25 are circumferentially formed on the outer side of the adjusting plate 24. An adjusting rod support column 26 is fixedly provided on the inner side of the adjusting plate 24. An adjusting rod 27 is rotatably connected to the adjusting rod support column 26, and the end of the adjusting rod 27 is fixedly... An adjustable spring rod support plate 28 is provided, and an adjustable spring rod 29 is fixedly provided on the outer side of the adjustable spring rod support plate 28. The adjustable spring rod 29 can be inserted into the adjusting hole 25. A guide wheel 30 is sleeved on the outer periphery of the adjusting rod support column 26 and rotatably connected to it. A guide wheel 31 is provided on the inner side of the middle part of the adjusting rod 27 and rotatably connected to it. By pulling the adjustable spring rod 29 away from the adjusting hole 25, and by rotating the adjusting rod 27 to adjust its angle, the adjustable spring rod 29 is inserted into different adjusting holes 25 to fix the angle of the adjusting rod 27, thereby changing the angle of the guide wheel 31. The cable outlet angle is fixed in conjunction with the guide wheel 30.
[0029] A height adjustment sleeve 32 is fitted around the outer periphery of the lifting plate column 2 on one side that is connected to the spring lifting plate 4. A fixing knob 33 is provided on one side of the height adjustment sleeve 32 and is threaded to it, with its end abutting against the lifting plate column 2. A height adjustment rod 34 is fixedly provided on one side of the height adjustment sleeve 32. By pushing the height adjustment rod 34, the height of the height adjustment sleeve 32 around the lifting plate column 2 is adjusted. Furthermore, by rotating the fixing knob 33, the height adjustment sleeve 32 is fixed by abutting against the lifting plate column 2. By adjusting the height of the height adjustment sleeve 32, the maximum height of the spring lifting plate 4 is adjusted, thereby limiting the cable dragging height.
[0030] This solution also includes a controller, the location of which is set by the operator according to the actual situation during operation. The controller is used to control the electrical components used in this solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, displays, computer input devices, switches, communication devices, lights, speakers, and microphones. The controller is an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is used in conjunction with a motherboard, memory modules, storage media, and power supply, which is AC power or a lithium battery. When a display screen is provided, a graphics card is also included. For the operating principle of the controller, please refer to "Principles of Automatic Control," "Microcontroller Principles and Application Simulation Cases," and "Sensor Principles and Applications" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are knowledge well known to those skilled in the art and will not be described in detail here.
[0031] Working principle:
[0032] In use, this device first adjusts the height of the height adjustment sleeve 32 using the height adjustment rod 34 to accommodate the required height of the cable. Then, the hydraulic cylinder 5 extends, raising the spring lifting plate 4 to abut against the height adjustment sleeve 32. The cable is then passed between the support roller 15 and the power belt 21. The cable exit angle is adjusted by the guide wheel 1 30 and guide wheel 2 31. Subsequently, the hydraulic cylinder 5 extends further, raising the lifting plate 3 and the support roller 15, bringing the cable abut against the power belt 21. During this further elevation, the spring rod 8 slides against the spring lifting plate 4, causing the support spring 10 to contract and keeping the spring lifting plate 4 stationary. Finally, the servo motors 19 are controlled to rotate synchronously, moving the cable and completing the cable dragging action.
[0033] In explaining this utility model, it should be noted that the terms indicating location are only for ease of description and understanding, and are not intended to limit the installation location of specific technical features. Other possible installation methods are not excluded.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A coal mine tunneling towline device comprising a base plate (1), characterized in that: The base plate (1) is fixed with lifting plate columns (2) at the four corners of the upper part. A lifting plate (3) is fitted around the outer periphery of one side of the lifting plate column (2) and is slidably connected to it. A spring lifting plate (4) is fitted around the outer periphery of the other side of the lifting plate column (2) and is slidably connected to it. A hydraulic cylinder (5) is fixed at the center of the upper part of the base plate (1). A support frame (6) is fixed on one side of the telescopic end of the hydraulic cylinder (5) and is fixedly connected to the bottom of the lifting plate (3). A spring support frame (7) is fixed on one side of the telescopic end of the hydraulic cylinder (5). A spring rod (8) is fixed on the upper part of the spring support frame (7) and passes through the spring lifting plate (4) and is slidably connected to it. Limiting discs (9) are fixed on the upper and lower sides of the spring rod (8). A support spring (10) is fitted around the outer periphery of the spring rod (8) and abuts against the bottom of the spring lifting plate (4).
2. A coal mine tunneling towline device according to claim 1, characterized in that: The lifting plate (3) and the spring lifting plate (4) have several bolt holes (11) at equal intervals on their inner surfaces. The lifting plate (3) has several supporting roller column support frames (12) at equal intervals on its inner surface. Several bolts (13) are installed inside the supporting roller column support frames (12) and installed inside the bolt holes (11). Roller column support rods (14) are fixedly installed inside the supporting roller column support frames (12). Support rollers (15) are sleeved on the outer periphery of the roller column support rods (14) and rotatedly connected to them. The spring lifting plate (4) has several power belt support plates at equal intervals on its inner surface. The frame (16) has several bolts (17) installed inside the bolt holes (11) at corresponding positions. The inner side of the power belt support plate frame (16) is fixedly provided with a power belt support plate (18). The inner sides of the power belt support plate (18) are fixedly provided with servo motors (19). The output end of the servo motor (19) passes through the power belt support plate (18) and is rotatably connected to it. The output end of the servo motor (19) is fixedly connected with a power belt drive wheel (20). The outer circumference of the power belt drive wheels (20) on both sides is fitted with a power belt (21).
3. A coal mine tunneling towline device according to claim 2, characterised in that: The lifting plate (3) is fixedly provided with an adjustment plate support frame (22) on the inner side of the front part. The adjustment plate support frame (22) is provided with bolt three (23) installed in the bolt hole (11) at the corresponding position. The adjustment plate (24) is fixedly provided on the inner side of the adjustment plate support frame (22). The adjustment plate (24) has an adjustment hole (25) circumferentially opened on the outer side of the side of the adjustment plate (24). The adjustment rod support column (26) is fixedly provided on the inner side of the adjustment plate (24). The adjustment rod support column (26) is fitted with an adjustment rod (27) on the outer circumference and rotatably connected to it. The end of the adjustment rod (27) is fixedly provided with an adjustment spring pull rod support plate (28). The adjustment spring pull rod support plate (28) is fixedly provided with an adjustment spring pull rod (29) on the outer side of the adjustment spring pull rod support plate (28). The adjustment spring pull rod (29) can be inserted into the adjustment hole (25). The adjustment rod support column (26) is fitted with a guide wheel one (30) on the outer circumference and rotatably connected to it. The middle inner side of the adjustment rod (27) is provided with a guide wheel two (31) and rotatably connected to it.
4. A coal mine tunneling cable-stayed device according to claim 3, characterized in that: A height adjustment sleeve (32) is fitted around the outer periphery of the lifting plate column (2) connected to the spring lifting plate (4). A fixed knob (33) is provided on one side of the height adjustment sleeve (32) for threaded engagement and the end can abut against the lifting plate column (2). A height adjustment rod (34) is fixedly provided on one side of the height adjustment sleeve (32).