A power cable winding device for a coal mine heading machine
The design of the guide seat and roller structure solves the problem of loose cables in the power cable winding device of traditional coal mine tunneling machines, and realizes tight winding of cables on the drum and stable power supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANKUANG ENERGY GRP CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional coal mine tunneling machine power cable winding devices lack tension constraints on the drum, resulting in loose and tangled cables, which affects power supply stability and equipment operating efficiency.
The system employs a guide seat and roller structure, with the guide seats forming an angle of 90°-120°. Stability is enhanced by main connecting ribs and auxiliary connecting ribs. The rollers are connected to the guide seats via bearings to prevent wear, and the combined action of the support rollers and guide rollers ensures that the cable is tightly wound.
This improves the tightness and stability of the cable on the reel, avoids loosening and knotting, and ensures the stability of power supply and the safety of equipment.
Smart Images
Figure CN224298574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for coal mining machinery, specifically a winding device for the power supply cable of a coal mine tunneling machine. Background Technology
[0002] In underground coal mine operations, tunneling machines are core mining equipment, and their power cables need to be frequently wound up and down as the equipment moves. Traditional cable winding devices mostly use a simple drum structure, driven directly by a motor. The drum is usually mounted on the tunneling machine, and the bumps and vibrations during the tunneling machine's operation are transmitted to the drum. Since the drum lacks a tensioning and restraining device for the cable, the cable is prone to loosening or even tangling on the drum, which will seriously affect the stability of power supply and the efficiency of equipment operation. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a power cable winding device for coal mine tunneling machines that avoids or reduces the loosening of the cable on the drum by increasing the tension.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A power cable winding device for a coal mine tunneling machine includes a frame, a drum rotatably mounted on the frame, and a cable wound on the drum.
[0006] The front and rear sides of the support frame are fixedly installed with upper support arms that are inclined to the upper left of the drum. Two guide seats with a certain angle are fixedly installed between the two upper support arms. A guide groove is opened in the middle of the two guide seats. When the cable is wound up by the drum, it needs to be guided into the guide groove of the two guide seats. At this time, the cable forms a turning point between the two guide seats.
[0007] By adopting the above scheme, when the power cable winding device for the coal mine tunneling machine is winding the cable, the cable needs to be threaded into the guide groove of the two guide seats. At this time, the cable forms a turning point between the two guide seats for tensioning the cable. Then, the cable will be more tightly wound on the drum. Even if the drum often bumps when working with the tunneling machine, the cable is less likely to become loose on the drum, making it more stable and safer to use.
[0008] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, the included angle between the two guide seats is 90°-120°.
[0009] By adopting the above scheme, in order to ensure the smoothness of cable guidance and tension strength, the included angle between the two guide seats is designed to be 90°-120°. Practical verification shows that the optimal angle for both smooth cable guidance and tension strength is 105°.
[0010] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, the joint between the two guide seats is fixedly connected by a main connecting rib, and the angle between the two guide seats is fixedly connected by two symmetrically distributed auxiliary connecting ribs.
[0011] By adopting the above scheme, in order to improve the connection strength between the two guide seats, main connecting ribs and auxiliary connecting ribs are used to strengthen the stability of the guide seats. Both the main connecting ribs and auxiliary connecting ribs are made of high-strength metal materials to enhance the integrity of the guide seats and prevent deformation under stress.
[0012] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, rollers distributed around the guide groove are also rotatably mounted on the guide seat.
[0013] By adopting the above solution, in order to improve the guiding performance of the cable, the roller is connected to the guide seat through a bearing, which can prevent it from directly contacting the guide seat and thus avoiding wear on the cable.
[0014] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, the rollers include two sets of oppositely arranged supporting rollers and two sets of oppositely arranged guide rollers, wherein the length of the supporting rollers is greater than the length of the guide rollers.
[0015] By adopting the above scheme, the supporting rollers mainly bear the weight of the cable, while the guide rollers are used to limit the lateral deviation of the cable.
[0016] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, the length of the supporting roller is equal to the width inside the drum.
[0017] By adopting the above solution, it is ensured that the supporting rollers are in complete contact with the inner wall of the drum, thus preventing the cable from shifting due to uneven support.
[0018] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, the length of the guide roller is greater than the diameter of the cable.
[0019] By adopting the above solution, it is ensured that the guide rollers are in full contact with the cable sheath, providing a stable guiding force.
[0020] In a preferred embodiment of a power cable winding device for a coal mine tunneling machine, the minimum distance between the two sets of guide rollers is equal to the length of the supporting roller.
[0021] By adopting the above solution and matching the dimensions, the supporting roller and the guide roller work together to ensure that the cable is wound in the center and to avoid squeezing damage.
[0022] The beneficial effects of this utility model are:
[0023] 1. When winding the power cable of the coal mine tunneling machine, the cable needs to be threaded into the guide groove of the two guide seats. At this time, the cable forms a turning point between the two guide seats for tensioning the cable. The cable will be more tightly wound on the drum. Even if the drum often bumps when working with the tunneling machine, the cable is less likely to become loose on the drum, making it more stable and safer to use.
[0024] 2. In order to improve the connection strength between the two guide seats, main connecting ribs and auxiliary connecting ribs are used to strengthen the stability of the guide seats. Both the main connecting ribs and auxiliary connecting ribs are made of high-strength metal materials to enhance the integrity of the guide seats and prevent deformation under stress.
[0025] 3. To improve the guiding performance of the cable, the roller is connected to the guide seat through a bearing, which can prevent it from directly contacting the guide seat and thus avoiding wear on the cable. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 Three-dimensional structure of power cable winding device for coal mine tunneling machines Figure 1 ;
[0028] Figure 2 Three-dimensional structure of power cable winding device for coal mine tunneling machines Figure 2 ;
[0029] Figure 3 Front view of the cable winding device for a coal mine tunneling machine;
[0030] Figure 4 for Figure 1 Three-dimensional structure of the cable tensioning section Figure 1 ;
[0031] Figure 5 for Figure 1 Three-dimensional structure of the cable tensioning section Figure 2 ;
[0032] Figure 6 for Figure 4 3D structural diagram of the guide seat;
[0033] The markings in the diagram are: 1-Upright frame; 2-Drum; 3-Cable; 4-Upper support arm; 5-Guide seat; 6-Guide groove; 7-Main connecting rib; 8-Auxiliary connecting rib; 9-Supporting roller; 10-Guide roller. Detailed Implementation
[0034] 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.
[0035] like Figures 1 to 6 As shown, a power cable winding device for a coal mine tunneling machine is provided. It is used for winding the power cable of the tunneling machine and specifically includes a frame 1, a drum 2 rotatably mounted on the frame 1, and a cable 3 wound on the drum 2. Upper support arms 4 are fixedly installed on both the front and rear sides of the frame 1, inclined towards the upper left of the drum 2. The angle between the upper support arm 4 and the horizontal plane is 50-70°. Two guide seats 5 at a certain angle are fixedly installed between the two upper support arms 4, and guide grooves 6 are opened in the middle of the two guide seats 5. When the cable 3 is wound by the drum 2, it needs to be guided into the guide grooves 6 of the two guide seats 5. At this time, the cable 3 forms a bend between the two guide seats 5. When winding up the power cable 3 of the coal mine tunneling machine, the cable 3 needs to be threaded into the guide groove 6 of the two guide seats 5. At this time, the cable 3 forms a turning point between the two guide seats 5 for tensioning the cable 3. Then, the cable 3 will be more tightly wound on the drum 2. Even if the drum 2 is frequently bumped when working with the tunneling machine, the cable 3 is not easy to become loose on the drum 2, making it more stable and safe during use.
[0036] like Figures 4 to 5 As shown, the included angle between the two guide seats 5 is 90°-120°. In order to ensure the smoothness of the guiding and the tension of the cable 3, the included angle between the two guide seats 5 is designed to be 90°-120°. Practical verification shows that the optimal angle for both the smoothness of the guiding and the tension of the cable 3 is 105°.
[0037] like Figures 4 to 5 As shown, the joint between the two guide seats 5 is fixedly connected by a main connecting rib 7, and the angle between the two guide seats 5 is fixedly connected by two symmetrically distributed auxiliary connecting ribs 8. In order to improve the connection strength between the two guide seats 5, the main connecting rib 7 and the auxiliary connecting rib 8 are used to strengthen the stability of the guide seats 5. The main connecting rib 7 and the auxiliary connecting rib 8 are both made of high-strength metal materials, such as steel bars, to enhance the integrity of the guide seats 5 and prevent deformation under stress.
[0038] like Figure 6 As shown, rollers distributed around the guide groove 6 are also rotatably mounted on the guide seat 5. In order to improve the guiding performance of the cable 3, the rollers are connected to the guide seat 5 through bearings, which can prevent them from directly contacting the guide seat 5 and thus avoiding wear on the cable 3.
[0039] Continue as Figure 6 As shown, the roller assembly includes two sets of oppositely arranged supporting rollers 9 and two sets of oppositely arranged guiding rollers 10, wherein the length of the supporting rollers 9 is greater than the length of the guiding rollers 10. The supporting rollers 9 mainly bear the weight of the cable, while the guiding rollers 10 are used to limit the lateral deviation of the cable.
[0040] Continue as Figure 6 As shown, the length of the supporting roller 9 is equal to the width inside the drum 2. Ensure that the supporting roller 9 is completely flush with the inner wall of the drum 2 to prevent the cable from shifting due to uneven support.
[0041] Continue as Figure 6 As shown, the length of the guide roller 10 is greater than the diameter of the cable 3. This ensures that the guide roller 10 makes full contact with the cable sheath, providing a stable guiding force.
[0042] Continue as Figure 6 As shown, the minimum distance between the two sets of guide rollers 10 is equal to the length of the supporting roller 9. Through dimensional matching, the supporting roller 9 and the guide roller 10 work together to ensure that the cable is wound in the center while avoiding crushing damage.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A power cable winding device for a coal mine tunneling machine, comprising a frame, a drum rotatably mounted on the frame, and a cable wound on the drum; Its features are: The front and rear sides of the support frame are fixedly installed with upper support arms that are inclined to the upper left of the drum. Two guide seats with a certain angle are fixedly installed between the two upper support arms. Guide grooves are opened in the middle of the two guide seats. When the cable is wound up by the drum, it needs to be threaded into the guide grooves of the two guide seats. At this time, the cable forms a bend between the two guide seats.
2. The power cable winding device for a coal mine tunneling machine according to claim 1, characterized in that: The included angle between the two guide seats is 90-120°.
3. The power cable winding device for a coal mine tunneling machine according to claim 1, characterized in that: The joint between the two guide seats is fixedly connected by a main connecting rib, and the angle between the two guide seats is fixedly connected by two symmetrically distributed auxiliary connecting ribs.
4. The power supply cable winding device for a coal mine tunneling machine according to claim 1, characterized in that, The guide seat is also rotatably mounted with rollers distributed around the guide groove.
5. The power supply cable winding device for a coal mine tunneling machine according to claim 4, characterized in that, The rollers include two sets of oppositely arranged supporting rollers and two sets of oppositely arranged guiding rollers, wherein the length of the supporting rollers is greater than the length of the guiding rollers.
6. The power cable winding device for a coal mine tunneling machine according to claim 5, characterized in that, The length of the supporting roller is equal to the width inside the drum.
7. The power supply cable winding device for a coal mine tunneling machine according to claim 6, characterized in that: The length of the guide roller is greater than the diameter of the cable.
8. The power cable winding device for a coal mine tunneling machine according to claim 7, characterized in that: The minimum distance between the two sets of guide rollers is equal to the length of the supporting roller.