A cable dragging device for coal mining machine

Abstract

The utility model relates to the technical field of coal mining machines, and discloses a cable towing device for coal mining machines, including a base plate and four universal wheels arranged on the bottom surface of the base plate, a clamping mechanism is arranged above the base plate, and a fixing mechanism is arranged below the base plate; the clamping mechanism is located above the fixing mechanism; the clamping mechanism includes a clamping part and a lifting part. The clamping mechanism can be used to fix the cable when it is needed to be towed, so that the cable surface friction can be avoided during the towing process, resulting in damage to the surface protective layer, affecting the service life of the cable, and in the fixing process, elastic parts and dampers can be provided to play a buffering role when fixing the cable, avoiding excessive clamping force when clamping the cable, resulting in damage to the surface, and buffer blocks can be provided to protect the cable surface when it contacts the inner side of the clamping ring, and the lifting part can be provided to adjust the height of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining machines, in particular to a cable towing device for coal mining machines. Background Art

[0002] The cable towing device of the coal mining machine is generally installed on the top of the coal mining machine. The base frame exceeds the side of the coal mining machine and is higher than the top of the coal mining machine. When the conventional coal mining machine is horizontally cutting coal, it does not affect the movement of the coal mining machine and the advancement of the hydraulic support. However, when mining in the downward direction, the advancement of the hydraulic support is easy to collide with the base frame of the towing device, which often damages the cable and the base frame of the towing device.

[0003] For this purpose, the China Patent Network has published a cable towing device with the publication number CN215854337U, which includes a bottom plate, two sides of the bottom plate are fixedly connected with vertical plates, and the sides of the two vertical plates away from the bottom plate are fixedly connected with towing plates by bolts, and the two towing plates are provided with towing holes, and the sides of the two towing plates away from the vertical plates are fixedly connected with connecting rods, and the two connecting rods are arranged between the two towing plates, and the opposite sides of the two connecting rods are evenly fixedly connected with multiple clamping mechanisms along their length directions. The towing holes and the clamping mechanisms of the utility model cooperate to drag two cables to move at the same time, and the connecting plates move with the unit, driving the entire device to move, thereby ensuring that the cables move with the unit, without the need for special personnel to supervise, saving labor, and the cables are clamped directly between the towing holes and the clamping mechanism, avoiding damage during movement, eliminating the hidden danger of leakage, and ensuring the safety of operators;

[0004] However, there are still the following disadvantages: the device has clamped and fixed the cable through a clamping mechanism when dragging the cable, so that no friction occurs when the cable is dragged. However, the clamping force is too large during clamping, which may cause damage to the cable protective layer. Therefore, a cable dragging device for a coal mining machine is proposed. Utility Model Content

[0005] The utility model aims to provide a cable towing device for a coal mining machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a cable towing device for a coal mining machine, comprising a bottom plate and four universal wheels arranged on the bottom surface of the bottom plate, a clamping mechanism is arranged above the bottom plate, and a fixing mechanism is arranged below the bottom plate;

[0007] The clamping mechanism is located above the fixing mechanism;

[0008] The clamping mechanism comprises a clamping part and a lifting part;

[0009] The lifting part is located below the clamping part;

[0010] The lifting part includes an electric telescopic rod and a fixing sleeve, and the clamping part includes a top plate and two clamping rings;

[0011] Two movable plates are slidably arranged on the top surface of the top plate, and dampers and two groups of elastic parts are fixedly arranged on the adjacent sides of the two movable plates, and two mounting plates are fixedly arranged on the adjacent sides of the dampers and the two groups of elastic parts, and the adjacent sides of the two mounting plates are fixedly connected to the distant sides of the two clamping rings, and two buffer blocks are fixedly arranged on the inner sides of the two clamping rings.

[0012] Preferably, the fixing mechanism includes a motor, a mounting bracket is fixedly provided on the top surface of the base plate, the inner top surface of the mounting bracket is fixedly connected to the top surface of the motor, a second threaded rod is fixedly provided on the bottom surface of the motor output end, the bottom surface of the second threaded rod passes through the top surface of the base plate and extends to the bottom of the base plate, the bottom surface of the second threaded rod passes through a lifting plate and extends to the bottom of the lifting plate, a nut is fixedly provided on the bottom surface of the lifting plate, the inner wall of the nut is threadedly connected to the surface of the second threaded rod, and the fixing mechanism can prevent the base plate from moving when the cable is clamped, thereby making it more efficient to fix the cable.

[0013] Preferably, the bottom surface of the bottom plate is fixedly connected to the bottom surface of the fixed sleeve, a telescopic plate is slidably provided inside the fixed sleeve, and the top surface of the telescopic plate is fixedly connected to the bottom surface of the top plate, and when the telescopic plate moves, it can drive the top plate to move synchronously.

[0014] Preferably, a through groove is provided through the top surface of the top plate, and two control blocks are slidably provided on the inner wall of the through groove. The top surfaces of the two control blocks are respectively fixedly connected to the bottom surfaces of the two movable plates, and two control rods are respectively hingedly provided on the left sides of the two control blocks. The two control blocks can drive the two movable plates to move during the movement process.

[0015] Preferably, a slide rail is fixedly provided on the bottom surface of the top plate, and a moving block is slidably provided on the surface of the slide rail. The side surfaces of the two control rods are respectively hinged to the front and rear side surfaces of the two moving blocks. A fixed plate is fixedly provided on the bottom surface of the top plate, and a first threaded rod is rotatably provided on the left side of the fixed plate through a bearing seat. The thread on the left side of the first threaded rod penetrates through the right side of the moving block and extends to the left side of the moving block. A turntable is fixedly provided on the left side of the first threaded rod. The first threaded rod can be rotated by rotating the turntable. When the first threaded rod rotates, the moving block can be moved left and right. When the moving block moves to the left, the two control blocks can be brought close to each other through the two control rods.

[0016] Preferably, the fixing sleeve, the telescopic plate and the clamping part are all arranged in two groups in left-right mirror symmetry, the top surface of the bottom plate is fixedly connected to the bottom surface of the electric telescopic rod, a control board is horizontally fixedly arranged on a side surface adjacent to the two top plates, the top surface of the output end of the electric telescopic rod is fixedly connected to the bottom surface of the control board, and by turning on the electric telescopic rod, the output end of the electric telescopic rod can drive the control board to move up and down by telescoping, and when the control board moves up and down, the two top plates can be driven to move synchronously.

[0017] Preferably, two supporting legs are fixedly provided on the bottom surface of the lifting plate, and two limit plates are fixedly provided on the top surface of the lifting plate. The top surfaces of the two limit plates both slide through the bottom surface of the bottom plate and extend above the bottom plate. The lifting plate can be restricted from moving up and down by the two limit plates.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: the cable towing device for the coal mining machine can fix the cable when it is needed to be towed by providing a clamping mechanism, thereby avoiding friction on the cable surface during the towing process, which causes damage to the surface protective layer and affects the service life of the cable, and in the fixing process, elastic parts and dampers can be provided to play a buffering role when fixing it, thereby avoiding damage to the surface due to excessive clamping force when clamping the cable, and buffer blocks can be provided to protect the cable surface when it contacts the inner side of the clamping ring, and a lifting part can be provided to adjust the height of the cable, thereby achieving better effect during the cable towing process, and a fixing mechanism can be provided to avoid movement of the bottom plate when clamping the cable, thereby making the cable more efficient when fixed, and after the clamping is completed, the support legs can be controlled to move upward, thereby moving the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the back structure of the utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of a partial cross-section structure of the utility model when viewed from above;

[0022] Figure 4 It is a three-dimensional schematic diagram of a local structure of the utility model viewed from above;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of area A in the middle.

[0024] In the figure: 1 bottom plate, 2 clamping mechanism, 201 top plate, 202 moving plate, 203 control plate, 204 electric telescopic rod, 205 telescopic plate, 206 fixed sleeve, 207 clamping ring, 208 buffer block, 209 fixed plate, 210 slide rail, 211 first threaded rod, 212 moving block, 213 control rod, 214 control block, 215 turntable, 216 elastic member, 217 damper, 218 mounting plate, 3 fixing mechanism, 301 lifting plate, 302 supporting leg, 303 limiting plate, 304 second threaded rod, 305 mounting frame, 306 motor, 307 nut, 4 universal wheel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0026] A preferred embodiment of the cable towing device for a coal mining machine provided by the utility model is as follows Figures 1 to 5 As shown: it includes a base plate 1 and four universal wheels 4 arranged on the bottom surface of the base plate 1, a clamping mechanism 2 is arranged above the base plate 1, and a fixing mechanism 3 is arranged below the base plate 1;

[0027] The clamping mechanism 2 is located above the fixing mechanism 3;

[0028] The clamping mechanism 2 includes a clamping part and a lifting part;

[0029] The lifting part is located below the clamping part;

[0030] The lifting part includes an electric telescopic rod 204 and a fixing sleeve 206, and the clamping part includes a top plate 201 and two clamping rings 207;

[0031] Two movable plates 202 are slidably arranged on the top surface of the top plate 201, and dampers 217 and two groups of elastic members 216 are fixedly arranged on the adjacent sides of the two movable plates 202, and two mounting plates 218 are fixedly arranged on the adjacent sides of the dampers 217 and the two groups of elastic members 216, and the adjacent sides of the two mounting plates 218 are fixedly connected to the distant sides of the two clamping rings 207, and two buffer blocks 208 are fixedly arranged on the inner sides of the two clamping rings 207, respectively. The bottom surface of the bottom plate 1 is fixedly connected to the bottom surface of the fixed sleeve 206, and a telescopic plate 205 is slidably arranged inside the fixed sleeve 206, and the top surface of the telescopic plate 205 is fixedly connected to the bottom surface of the top plate 201, and a through groove is opened through the top surface of the top plate 201, and two control blocks 214 are slidably arranged on the inner wall of the through groove, and the top surfaces of the two control blocks 214 are fixedly connected to the bottom surfaces of the two movable plates 202, and the left sides of the two control blocks 214 are hinged respectively. Two control rods 213 are provided, a slide rail 210 is fixedly provided on the bottom surface of the top plate 201, a moving block 212 is slidably provided on the surface of the slide rail 210, and the adjacent side surfaces of the two control rods 213 are hinged to the front and rear side surfaces of the two moving blocks 212 respectively, a fixed plate 209 is fixedly provided on the bottom surface of the top plate 201, a first threaded rod 211 is rotatably provided on the left side of the fixed plate 209 through a bearing seat, a thread on the left side of the first threaded rod 211 penetrates through the right side of the moving block 212 and extends to the left side of the moving block 212, a turntable 215 is fixedly provided on the left side of the first threaded rod 211, the fixed sleeve 206, the telescopic plate 205 and the clamping part are all provided in two groups in left and right mirror symmetry, the top surface of the bottom plate 1 is fixedly connected to the bottom surface of the electric telescopic rod 204, a control board 203 is horizontally fixedly provided on the adjacent side surfaces of the two top plates 201, and the top surface of the output end of the electric telescopic rod 204 is fixedly connected to the bottom surface of the control board 203;

[0032] By providing a clamping mechanism 2, the cable can be fixed when it needs to be dragged, thereby avoiding friction on the cable surface during the dragging process, which would cause damage to the surface protective layer and affect the service life of the cable. In the fixing process, the elastic member 216 and the damper 217 can play a buffering role when fixing the cable, thereby avoiding damage to the surface due to excessive clamping force when clamping the cable. The buffer block 208 can protect the cable surface when it contacts the inner side of the clamping ring 207. The lifting part can adjust the height of the cable, thereby achieving a better effect during the cable dragging process. Example 2

[0033] On the basis of Example 1, a preferred embodiment of a cable towing device for a coal mining machine provided by the utility model is as follows: Figures 1 to 5As shown: the fixing mechanism 3 includes a motor 306, a mounting frame 305 is fixedly provided on the top surface of the bottom plate 1, the inner top surface of the mounting frame 305 is fixedly connected to the top surface of the motor 306, a second threaded rod 304 is fixedly provided on the bottom surface of the output end of the motor 306, the bottom surface of the second threaded rod 304 penetrates the top surface of the bottom plate 1 and extends to the bottom of the bottom plate 1, the bottom surface of the second threaded rod 304 penetrates the lifting plate 301 and extends to the bottom of the lifting plate 301, a nut 307 is fixedly provided on the bottom surface of the lifting plate 301, the inner wall of the nut 307 is threadedly connected to the surface of the second threaded rod 304, two supporting legs 302 are fixedly provided on the bottom surface of the lifting plate 301, and two limit plates 303 are fixedly provided on the top surface of the lifting plate 301, and the top surfaces of the two limit plates 303 both slide through the bottom surface of the bottom plate 1 and extend to the top of the bottom plate 1;

[0034] The fixing mechanism 3 can prevent the bottom plate 1 from moving when the cable is clamped, so that the cable can be fixed more efficiently, and after the clamping is completed, the support leg 302 can be controlled to move upward, thereby moving the cable.

[0035] When in use, the motor 306 is turned on, and the rotation of the output end of the motor 306 can drive the second threaded rod 304 to rotate. When the second threaded rod 304 rotates, the lifting plate 301 can be moved up and down through the nut 307. When the lifting plate 301 moves downward, the supporting leg 302 can be driven to move synchronously. When the contact surface of the supporting leg 302 contacts the ground, the universal wheel 4 can be separated from the ground. When the cable is placed above the top plate 201, the first threaded rod 211 can be rotated by rotating the turntable 215. When the first threaded rod 211 rotates, the moving block 212 can be moved left and right. By moving to the left through the two control rods 213, the two control blocks 214 can be brought closer to each other. When the two control blocks 214 are brought closer to each other, the two clamping rings 207 can be driven to move synchronously. After the inner sides of the two clamping rings 207 contact the cable surface, the elastic member 216 and the damper 217 can buffer it when in contact. The buffer block 208 can protect the cable surface. By turning on the electric telescopic rod 204, the output end of the electric telescopic rod 204 can be extended and retracted to drive the control board 203 to move up and down. When the control board 203 moves up and down, the two top plates 201 can be driven to move synchronously.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable towing device for a coal mining machine, comprising a base plate (1) and four universal wheels (4) arranged on the bottom surface of the base plate (1), characterized in that: A clamping mechanism (2) is provided above the bottom plate (1), and a fixing mechanism (3) is provided below the bottom plate (1); The clamping mechanism (2) is located above the fixing mechanism (3); The clamping mechanism (2) comprises a clamping part and a lifting part; The lifting part is located below the clamping part; The lifting part comprises an electric telescopic rod (204) and a fixing sleeve (206), and the clamping part comprises a top plate (201) and two clamping rings (207); Two movable plates (202) are slidably arranged on the top surface of the top plate (201); dampers (217) and two groups of elastic members (216) are fixedly arranged on adjacent sides of the two movable plates (202); two mounting plates (218) are fixedly arranged on adjacent sides of the dampers (217) and the two groups of elastic members (216); adjacent sides of the two mounting plates (218) are fixedly connected to distant sides of the two clamping rings (207); and two buffer blocks (208) are fixedly arranged on the inner sides of the two clamping rings (207).

2. A cable towing device for a coal mining machine according to claim 1, characterized in that: The fixing mechanism (3) comprises a motor (306); a mounting frame (305) is fixedly provided on the top surface of the bottom plate (1); the inner top surface of the mounting frame (305) is fixedly connected to the top surface of the motor (306); a second threaded rod (304) is fixedly provided on the bottom surface of the output end of the motor (306); the bottom surface of the second threaded rod (304) passes through the top surface of the bottom plate (1) and extends to below the bottom plate (1); the bottom surface of the second threaded rod (304) passes through a lifting plate (301) and extends to below the lifting plate (301); a nut (307) is fixedly provided on the bottom surface of the lifting plate (301); the inner wall of the nut (307) is threadedly connected to the surface of the second threaded rod (304).

3. A cable towing device for a coal mining machine according to claim 1, characterized in that: The bottom surface of the bottom plate (1) is fixedly connected to the bottom surface of the fixed sleeve (206); a telescopic plate (205) is slidably arranged inside the fixed sleeve (206); and the top surface of the telescopic plate (205) is fixedly connected to the bottom surface of the top plate (201).

4. A cable towing device for a coal mining machine according to claim 3, characterized in that: A through slot is formed through the top surface of the top plate (201), and two control blocks (214) are slidably arranged on the inner wall of the through slot. The top surfaces of the two control blocks (214) are respectively fixedly connected to the bottom surfaces of the two movable plates (202), and two control rods (213) are respectively hingedly arranged on the left sides of the two control blocks (214).

5. A cable towing device for a coal mining machine according to claim 4, characterized in that: A slide rail (210) is fixedly arranged on the bottom surface of the top plate (201), a moving block (212) is slidably arranged on the surface of the slide rail (210), and adjacent sides of the two control rods (213) are respectively hinged to the front and rear sides of the two moving blocks (212), a fixed plate (209) is fixedly arranged on the bottom surface of the top plate (201), a first threaded rod (211) is rotatably arranged on the left side of the fixed plate (209) through a bearing seat, the left side of the first threaded rod (211) has a thread that penetrates the right side of the moving block (212) and extends to the left side of the moving block (212), and a rotating disk (215) is fixedly arranged on the left side of the first threaded rod (211).

6. A cable towing device for a coal mining machine according to claim 5, characterized in that: The fixing sleeve (206), the telescopic plate (205) and the clamping portion are all arranged in two groups in a mirror-symmetrical manner on the left and right sides; the top surface of the bottom plate (1) is fixedly connected to the bottom surface of the electric telescopic rod (204); a control board (203) is fixedly arranged horizontally on a side surface adjacent to the two top plates (201); and the top surface of the output end of the electric telescopic rod (204) is fixedly connected to the bottom surface of the control board (203).

7. A cable towing device for a coal mining machine according to claim 2, characterized in that: Two supporting legs (302) are fixedly provided on the bottom surface of the lifting plate (301), and two limiting plates (303) are fixedly provided on the top surface of the lifting plate (301). The top surfaces of the two limiting plates (303) both slide through the bottom surface of the bottom plate (1) and extend to above the bottom plate (1).

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