An automatic cable dragging device for a coal mining machine

Abstract

The utility model discloses a kind of coal cutter cable automatic tow devices, including cable slot, sleeve and cable clamp, the left and right two side walls in cable slot are provided with guide sliding slot on the length direction of cable slot, the inside of cable slot is provided with traction assembly, the front and back two sides of traction assembly are fixedly installed with cleaning assembly, the bottom of cable slot is provided with left-right symmetrical through opening;The traction assembly includes traction frame.This kind of coal cutter cable automatic tow device, coal dust and impurities are effectively reduced by the guide sliding slot of lateral arrangement, by the movement of traction frame, gyro wheel rolls in guide sliding slot, gyro wheel of rolling walk reduces the resistance of traction frame movement, and by the inner wall of guide sliding slot in real time cleaning of cleaning brush, prevent dust and sundries accumulation from affecting traction assembly sliding, to ensure the smooth sliding of traction assembly.

Description

Technical Field

[0001] This utility model relates to the field of coal mining machinery and equipment technology, specifically to an automatic cable dragging device for a coal mining machine. Background Technology

[0002] Coal mining machines are core equipment in coal mining operations. During operation, they need to be connected to an external power source and control system via cables to achieve power supply and command transmission. Since coal mining machines typically need to move back and forth along the working face, their associated cables also need to be dragged along. The cable dragging method for coal mining machines in fully mechanized coal mining faces is mostly to drag the cable using cable clamps. The existing patent authorization announcement number CN220401410U discloses a coal mining machine cable dragging device for ultra-thin coal seam fully mechanized mining faces. It consists of a traction head and a cable clamp for protecting and dragging the coal mining machine cable. The cable trough extends along a first direction with a travel track. The traction head is installed on the cable trough and can move relative to the cable trough on the travel track. It can also remove coal and gangue scattered in the cable trough by using a shovel, thereby ensuring stable use of cable dragging. When the above-mentioned patent is used, the traction head achieves guidance and limiting function through the part of its bottom that is locked in the walking track. However, the walking track is set at the bottom of the cable trough, and other impurities such as falling coal and gangue can easily fall into the walking track. After a long period of accumulation, it may cause the traction head to get stuck during movement, affecting the normal operating efficiency of the towing device. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic cable dragging device for a coal mining machine, in order to solve the problem in the above-mentioned background technology that the walking track is set at the bottom of the cable trough, and falling coal, gangue and other impurities are easy to fall into the walking track. After a long period of accumulation, the traction head may get stuck during the movement, affecting the normal operation efficiency of the dragging device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic cable dragging device for a coal mining machine, comprising a cable trough, a sleeve, and a cable clamp. Guide grooves are formed on the left and right side walls of the cable trough along its length. A traction assembly is provided inside the cable trough. Cleaning components are fixedly installed on both the front and rear sides of the traction assembly. Symmetrical openings are formed at the bottom of the cable trough. The traction assembly includes a traction frame. A traction head and a frame are fixedly connected to the front and rear sides of the top of the traction frame, respectively. Support cylinders are fixedly connected to both the traction head and the frame on the left and right sides. A rotating shaft is rotatably installed inside each support cylinder. A roller, which is engaged in the guide groove, is fixedly installed at the end of the rotating shaft away from the traction frame. An L-shaped bracket is fixedly connected to the outside of the support cylinder. An mounting plate located in the guide groove is fixedly installed on the outside of the L-shaped bracket. A cleaning brush is fixedly connected to the outside of the mounting plate.

[0005] Preferably, the cleaning brushes are respectively located on the upper and lower sides of the mounting plate and on the side near the roller, and the cleaning brushes are respectively attached to the inner wall of the guide groove and the outer wall of the roller.

[0006] Preferably, the mounting plate is externally fixedly connected to a bolt rod that passes through the L-shaped bracket, and the external thread of the bolt rod is fitted with a nut that abuts against the outside of the L-shaped bracket.

[0007] Preferably, a limiting shaft is fixedly installed on the top of the traction frame, the sleeve is sleeved on the outside of the limiting shaft, the cable clamp is wrapped around the outer wall of the sleeve, and a limiting cover plate that is locked on the top of the limiting shaft is fixedly installed on the top of the traction head and the frame by bolts.

[0008] Preferably, the cleaning assembly includes a fixing plate, a shovel head is provided on the outside of the fixing plate, a fixing bolt is movably installed on the bottom of the fixing plate, and the fixing plate is fixedly installed to the bottom of the traction frame by the fixing bolt.

[0009] Preferably, the bottom of the shovel head fits into the bottom surface of the cable trough, and the horizontal cross-section of the shovel head is designed with a triangular planed surface.

[0010] Preferably, the opening is located on the lower left and right sides of the shovel head.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The side-mounted guide chute effectively reduces the entry of coal dust and impurities. As the traction frame moves, the rollers roll in the guide chute, reducing the resistance to the movement of the traction frame. The cleaning brush cleans the inner wall of the guide chute in real time to prevent dust and debris from accumulating and affecting the sliding of the traction component, thus ensuring the smooth sliding of the traction component. 2. By using the traction component and the raised setting inside the cable trough, when the shovel head moves, it can remove coal gangue, loose coal and other debris that come into contact with the bottom of the cable trough to the left and right sides and discharge them from the opening, preventing debris from accumulating on the moving path of the cable clamp and ensuring stable use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the traction component of this utility model; Figure 3 This is an exploded view of the structure of the shaft mounting position of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A; Figure 5This is an exploded view of the cleaning component of this utility model.

[0013] In the diagram: 1. Cable trough; 2. Guide chute; 3. Traction assembly; 31. Traction frame; 32. Traction head; 33. Frame; 34. Support cylinder; 35. Rotating shaft; 36. Roller; 37. L-shaped bracket; 38. Mounting plate; 39. Cleaning brush; 310. Bolt rod; 311. Nut; 312. Limiting shaft; 313. Limiting cover plate; 4. Sleeve; 5. Cable clamp; 6. Cleaning assembly; 61. Fixing plate; 62. Shovel head; 63. Fixing bolt; 7. Through port. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: an automatic cable dragging device for a coal mining machine, comprising a cable trough 1, a sleeve 4, and a cable clamp 5. Guide grooves 2 are formed on the left and right side walls of the cable trough 1 along its length. A traction assembly 3 is provided inside the cable trough 1. Cleaning components 6 are fixedly installed on both the front and rear sides of the traction assembly 3. Symmetrical openings 7 are formed at the bottom of the cable trough 1. The traction assembly 3 includes a traction frame 31. A traction head 32 and a frame 33 are fixedly connected to the front and rear sides of the top of the traction frame 31, respectively. Support cylinders 34 are fixedly connected to the left and right sides of the traction head 32 and the frame 33. Rotating shafts 35 are rotatably installed inside the support cylinders 34, with the rotating shafts 35 located away from the traction head 32. One end of the guide frame 31 is fixedly installed with a roller 36 that is locked in the guide groove 2. An L-shaped bracket 37 is fixedly connected to the outside of the support cylinder 34. An installation plate 38 located in the guide groove 2 is fixedly installed on the outside of the L-shaped bracket 37. A cleaning brush 39 is fixedly connected to the outside of the installation plate 38. The side-mounted guide groove 2 effectively reduces the entry and accumulation of coal dust and impurities. As the traction frame 31 moves, the roller 36 rolls in the guide groove 2. The rolling roller 36 reduces the resistance to the movement of the traction frame 31. The cleaning brush 39 cleans the inner wall of the guide groove 2 in real time to prevent the accumulation of dust and debris from affecting the sliding of the traction component 3, thereby ensuring the smooth sliding of the traction component 3. The front side of the traction head 32 can be connected to a drive mechanism (not shown in the figure) for dragging the traction frame 31 to move along the length of the cable trough 1 under the drive of the drive mechanism. The drive mechanism can be a chain drive mechanism of the prior art. By cooperating with the sprocket assembly, the rotational motion of the motor is converted into the linear motion of the chain, and then the entire traction assembly 3 is driven to run along the cable trough 1 through the connection between the chain and the traction head 32.

[0016] The cleaning brushes 39 are respectively located on the upper and lower sides of the mounting plate 38 and on the side near the roller 36. The cleaning brushes 39 are respectively attached to the inner wall of the guide chute 2 and the outer wall of the roller 36. Through the close contact between the cleaning brushes 39 and the inner wall of the guide chute 2 and the outer wall of the roller 36, the traction assembly 3 can clean the coal dust, gravel and other impurities inside the guide chute 2 in real time as it moves along the guide chute 2. At the same time, it can clean the dirt attached to the surface of the roller 36, effectively preventing the accumulation of impurities from affecting the smooth rolling of the roller 36 and ensuring the stable operation of the traction assembly 3 in the cable trough 1.

[0017] The mounting plate 38 is externally fixedly connected by a bolt rod 310 that passes through the L-shaped bracket 37. The bolt rod 310 has an external thread with a nut 311 that abuts against the outside of the L-shaped bracket 37. Through the insertion and engagement of the bolt rod 310 and the L-shaped bracket 37 and the abutment of the nut 311, a detachable connection between the mounting plate 38 and the L-shaped bracket 37 can be achieved. This facilitates quick replacement and maintenance when the cleaning brush 39 is worn or damaged, reducing the difficulty and cost of device maintenance. At the same time, the abutment of the nut 311 ensures that the mounting plate 38 will not loosen or shift during the movement of the traction assembly 3, ensuring that the cleaning brush 39 always maintains a tight fit with the inner wall of the guide groove 2 and the outer wall of the roller 36, thus maintaining the stability and continuity of the cleaning effect.

[0018] A limiting shaft 312 is fixedly installed on the top of the traction frame 31. The sleeve 4 is sleeved on the outside of the limiting shaft 312. The cable clamp 5 is wrapped around the outer wall of the sleeve 4. The top of the traction head 32 and the frame 33 are fixedly installed with a limiting cover plate 313 that is locked on the top of the limiting shaft 312 by bolts. The setting of the limiting cover plate 313 can effectively limit the axial movement of the sleeve 4 on the limiting shaft 312, prevent the sleeve 4 from falling off the limiting shaft 312 during the operation of the traction assembly 3, and ensure the stability of the winding path of the cable clamp 5. At the same time, the sleeve 4 can rotate freely around the limiting shaft 312. When the cable clamp 5 moves with the traction assembly 3 and drives the cable to move, the sleeve 4 can convert the sliding friction between the cable and the traction frame 31 into rolling friction through its own rotation, which significantly reduces the friction force on the cable during the dragging process.

[0019] Please see Figure 1 , Figure 2 and Figure 5The cleaning component 6 includes a fixing plate 61, with a shovel head 62 on the outside of the fixing plate 61. A fixing bolt 63 is movably installed on the bottom of the fixing plate 61. The fixing plate 61 is fixedly installed on the bottom of the traction frame 31 by the fixing bolt 63. When the traction component 3 drives the shovel head 62 to move, the shovel head 62 can effectively remove coal gangue, loose coal and other debris that come into contact with the bottom of the cable trough 1, preventing debris from accumulating on the moving path of the cable clamp 5 and avoiding jamming or displacement of the cable clamp 5 due to obstruction by debris.

[0020] The bottom of the shovel head 62 is in contact with the inner bottom surface of the cable trough 1. The horizontal cross section of the shovel head 62 is designed with a triangular planed surface, which allows the shovel head 62 to guide the debris to both sides during movement, reducing the resistance during shoveling. At the same time, the tip of the triangular planed surface can concentrate stress, enhance the ability to break up hard debris, and ensure a more thorough cleaning of the bottom of the cable trough 1.

[0021] The opening 7 is located on the lower left and right sides of the shovel head 62. During the movement of the shovel head 62, it can guide the debris to the sides and quickly discharge it through the opening 7.

[0022] Working principle: When in use, the sleeve 4 is sleeved on the outside of the limiting shaft 312, and the limiting cover plate 313 is located above the limiting shaft 312 for restriction. The sleeve 4 and the cable inside it pass through the frame 33 and are wrapped around the outside of the cable clamp 5. The drive mechanism (not shown in the figure) can be connected to the front side of the traction head 32 to drive the traction frame 31 to move and drag the cable clamp 5. When the traction frame 31 moves the support cylinder 34 along the length of the cable trough 1, the roller 36 installed on the rotating shaft 35 inside the support cylinder 34 and located in the guide chute 2 can drive the rotating shaft 35 to rotate, thereby moving the traction frame 31. When the support cylinder 34 moves, the cleaning brush 39 on the outside of the mounting plate 38 installed on the L-shaped bracket 37 can brush along the inner wall of the guide chute 2 and at the same time brush the outside of the rotating roller 36 to remove accumulated dust and impurities. The notch set on the inner wall of the guide chute 2 allows dust and impurities to be discharged when they reach the position, thereby reducing the impact of coal and gangue entering the guide chute 2 on the sliding of the traction component 3 and ensuring the stability and efficiency of the towing. When the traction frame 31 moves along the cable trough 1, the bottom of the traction frame 31 is raised relative to the bottom of the cable trough 1. The shovel head 62, which is fixed to the fixing plate 61 at the bottom of the traction frame 31 by the fixing bolts 63, can move with the traction frame 31 to remove the coal and gangue that have fallen and accumulated at the bottom of the cable trough 1, and guide them to the left and right sides through the shovel head 62 to be discharged from the outlet 7. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cable dragging device for a coal mining machine, comprising a cable trough (1), a sleeve (4), and a cable clamp (5), characterized in that: Guide grooves (2) are provided on the left and right side walls of the cable trough (1) along the length of the cable trough (1). A traction component (3) is provided on the inner side of the cable trough (1). Cleaning components (6) are fixedly installed on the front and rear sides of the traction component (3). A symmetrical opening (7) is provided at the bottom of the cable trough (1). The traction assembly (3) includes a traction frame (31). A traction head (32) and a frame (33) are fixedly connected to the front and rear sides of the top of the traction frame (31). Support cylinders (34) are fixedly connected to the left and right sides of the traction head (32) and the frame (33). A rotating shaft (35) is rotatably installed inside the support cylinder (34). A roller (36) is fixedly installed at the end of the rotating shaft (35) away from the traction frame (31). An L-shaped bracket (37) is fixedly connected to the outside of the support cylinder (34). An installation plate (38) located in the guide groove (2) is fixedly installed on the outside of the L-shaped bracket (37). A cleaning brush (39) is fixedly connected to the outside of the installation plate (38).

2. The automatic cable dragging device for a coal mining machine according to claim 1, characterized in that: The cleaning brushes (39) are respectively located on the upper and lower sides of the mounting plate (38) and on the side close to the roller (36). The cleaning brushes (39) are respectively attached to the inner wall of the guide groove (2) and the outer wall of the roller (36).

3. The automatic cable dragging device for a coal mining machine according to claim 1, characterized in that: The mounting plate (38) is fixedly connected to the outside by a bolt rod (310) that passes through the L-shaped bracket (37), and the bolt rod (310) is threaded with a nut (311) that abuts against the outside of the L-shaped bracket (37).

4. The automatic cable dragging device for a coal mining machine according to claim 3, characterized in that: The top of the traction frame (31) is fixedly installed with a limiting shaft (312), the sleeve (4) is sleeved on the outside of the limiting shaft (312), the cable clamp (5) is wrapped around the outer wall of the sleeve (4), and the top of the traction head (32) and the frame (33) are fixedly installed with a limiting cover plate (313) that is locked on the top of the limiting shaft (312) by bolts.

5. The automatic cable dragging device for a coal mining machine according to claim 1, characterized in that: The cleaning assembly (6) includes a fixing plate (61), a shovel head (62) is provided on the outside of the fixing plate (61), and a fixing bolt (63) is movably installed on the bottom of the fixing plate (61). The fixing plate (61) is fixedly installed on the bottom of the traction frame (31) by the fixing bolt (63).

6. The automatic cable dragging device for a coal mining machine according to claim 5, characterized in that: The bottom of the shovel head (62) is attached to the inner bottom surface of the cable trough (1), and the horizontal cross section of the shovel head (62) is designed with a triangular planed surface.

7. The automatic cable dragging device for a coal mining machine according to claim 6, characterized in that: The opening (7) is located on the lower left and right sides of the shovel head (62).

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