Coal rock cutting rock sample device and method

Abstract

The present invention discloses a coal rock cutting rock sample device and method thereof, and relates to the technical field of coal rock cutting, including a support frame, wherein the inner walls on both sides of the left and right sides of the support frame are both rotated to penetrate with double rod frames, and two main support plates are arranged between the two double rod frames, and each main support plate is slidably sleeved on the outer surface of the two double rod frames, and the two main support plates are connected by two double-headed power telescopic rods. The present invention has a reasonable design structure, and it can set a reducing column and a clamping structure, and then control the two main support plates to approach each other, and after all the clamping rods above are in contact with the coal rock, control the reducing column above to rotate to clamp the clamping structure, and then flip the double rod frame half a circle, so that the clamping rods rotated to the top are in contact with the coal rock surface again, and then control the reducing column rotated to the top to rotate 90 degrees to clamp the clamping structure, and when the two main support plates are close to each other, the clamping rods on the upper and lower sides can fully clamp the coal rock.

Description

Technical Field

[0001] The invention relates to the technical field of coal rock cutting, in particular to a coal rock cutting rock sample device and a method thereof. Background Art

[0002] Coal rock and coal samples are mainly used for coal petrology research to determine the lithological composition and coalification degree of coal. It is one of the main bases for evaluating the properties and uses of coal. It is also an important basis for comparing coal seams in the region and studying the origin and metamorphism of coal.

[0003] Coal rock samples need to be cut in the research. The existing cutting equipment will clamp and fix the coal rock on both sides during cutting to ensure that the coal rock will not move during cutting. However, there are bumps on the top and bottom of the coal rock sample. When the coal rock sample is clamped, it is easy to cause uneven force on the coal rock sample. The coal rock is easy to fall when cutting the coal rock. After clamping once, generally only one cut can be made. However, in the research, the coal rock sample will be cut multiple times at different positions, and it needs to be disassembled and clamped again after each cut. To this end, we provide coal rock cutting sample equipment and methods to solve the above problems. Summary of the invention

[0004] 1) Technical issues solved

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a coal rock cutting rock sample device and method.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a coal rock cutting rock sample equipment, comprising a support frame, wherein the inner walls on the left and right sides of the support frame are rotatably penetrated by double-rod frames, two main support plates are arranged between the two double-rod frames, each main support plate is slidably sleeved on the outer surfaces of the two double-rod frames, the two main support plates are connected by two double-headed power telescopic rods, and the middle positions of the two double-headed power telescopic rods are respectively fixedly connected to the two double-rod frames, a plurality of rows of through holes are provided on the upper surface of the main support plates, and a reducing column is rotatably inserted inside the main support plates and between each two adjacent rows of through holes, a reciprocating power structure is installed on the front side of the main support plates, the front end of the reducing column is connected to the adjacent reciprocating power structure, a clamping structure is slidably inserted inside the through hole, a fixed-angle power structure is installed on the rear end of the support frame, and the ends of the two double-rod frames away from each other are connected to the fixed-angle power structure.

[0008] Furthermore, the reciprocating power structure includes a single-head power telescopic rod A and a movable rod. The end of the variable diameter column located in front of the main support plate is fixedly sleeved with an inner groove swing plate, and an insertion shaft is slidably inserted inside the inner groove swing plate. The rear end of the insertion shaft is fixedly connected to the front of the movable rod, the left end of the single-head power telescopic rod A is fixedly connected to the main support plate, and the right end of the single-head power telescopic rod A is fixedly connected to the right end of the movable rod.

[0009] Furthermore, the right end of the movable rod is bent, and distance rods are provided on both sides of the right end of the movable rod, and the rear end of the distance rod is fixedly connected to the front side of the main support plate.

[0010] Furthermore, the fixed-angle power structure includes a double-headed motor, two worms, two worm wheels and a full-bevel gear. The two worm wheels are respectively fixedly sleeved on one end of the two double-rod frames away from each other. A bent plate is fixedly connected to the back of the support frame. The two worms are respectively meshed with the upper surfaces of the two worm wheels. The two worms are respectively rotatably connected to the left and right side surfaces of the bent plate. The bent plate is fixedly sleeved on the outer surface of the double-headed motor. The bent plate is rotatably sleeved on the two output ends of the double-headed motor. The two full-bevel gears are respectively fixedly sleeved on the rear ends of the two worms. Semi-bevel gears are meshed at the rear of the two full-bevel gears. The two semi-bevel gears are respectively fixedly sleeved on the two output ends of the double-headed motor.

[0011] Furthermore, the clamping structure includes an inner column and two force-bearing plates, the inner column is located between the two force-bearing plates, the two force-bearing plates and the inner column are slidably inserted inside the through hole, thick plates are slidably inserted between the two force-bearing plates and on the left and right sides of the inner column, a double-headed rod is provided on the side of the inner column away from the axis of the double-rod frame, the upper ends of the two force-bearing plates are slidably sleeved on the outer surface of the double-headed rod, the upper ends of the two thick plates are fixedly sleeved on the outer surface of the double-headed rod, and the end of the inner column close to the axis of the double-rod frame is fixedly connected to a clamping rod.

[0012] Furthermore, two rows of balls are rotatably embedded on the left and right sides of the thick plate, and a through hole is opened inside the inner column to penetrate left and right. Two round rods are slidably inserted inside the through hole, and the other end of the round rod is fixedly connected to the adjacent load-bearing plate.

[0013] Furthermore, grooves are provided on the left and right sides of the inner column and on the front and rear sides of the load-bearing plate, and the depth of the grooves is greater than the thickness of the thick plate.

[0014] Furthermore, a multi-rod frame is provided on one side of the two main support plates away from each other, and the inner side of the multi-rod frame is a plurality of rod-like structures. A single-head power telescopic rod B is fixedly inserted into the upper surface of the multi-rod frame, and the other end of the single-head power telescopic rod B is fixedly connected to the adjacent main support plate. A pull rope is fixedly connected to one end of the inner column away from the axis of the double-rod frame, and a hook is fixedly connected to the other end of the pull rope, and the hook is hung on the surface of the rod-like structure in the multi-rod frame.

[0015] Furthermore, the shape of the variable diameter column is an arc structure with concentric left and right ends and upper and lower ends. The arc diameters of the left and right ends of the variable diameter column are larger than the arc diameters of the upper and lower ends of the variable diameter column. The maximum width of the variable diameter column is equal to the minimum distance between two adjacent left and right through holes.

[0016] The coal rock cutting rock sample method comprises the following steps:

[0017] S1. First, the double-headed power telescopic rod controls the two main support plates to be at the maximum distance, then makes the small diameter end of the variable diameter column horizontal, releases the squeeze on the force-bearing plate, and then places the coal and rock samples to be cut on the clamping rod below, and then controls the two main support plates to approach each other. When the main support plate at the top moves downward, it drives the corresponding inner column and clamping rod to move downward.

[0018] S2. After the upper clamping rod contacts the upper surface of the coal rock sample, the clamping rods at different positions contact different concave and convex surfaces of the coal rock, pushing the inner column to move at different distances relative to the main support plate. Then the upper movable rod drives the variable diameter column to rotate 90 degrees, so that the maximum width of the variable diameter column squeezes the load-bearing plate and fixes the position of the inner column and the main support plate.

[0019] S3. Then the fixed-angle power structure drives the double-rod frame to rotate 180 degrees, driving the coal rock to flip 180 degrees. Then the double-headed power telescopic rod first controls the two main support plates to move away from each other, and rotates to the upper side of the variable diameter column to loosen the clamping of the upper force-bearing plate, so that the clamping rod rotated to the upper side contacts with the concave and convex surfaces of the coal rock surface to different degrees, so that the clamping rods at different positions move relative to the main support plate to different degrees, and then the variable diameter column is rotated to fix the large diameter end to the inner column and the clamping rod, so that the clamping rods on the upper and lower sides are fully in contact with the upper and lower surfaces of the coal rock, so that the upper and lower surfaces of the coal rock are subjected to more uniform force.

[0020] 3) Beneficial effects:

[0021] Compared with the prior art, the coal rock cutting rock sample device and method have the following beneficial effects:

[0022] First, the present invention sets a variable diameter column and a clamping structure. In the initial state, the narrower end of the variable diameter column is close to the clamping structure, so that the clamping structure can move relative to the main support plate. At the same time, the double-headed power telescopic rod pushes the two main support plates to be at the maximum distance, and then the coal and rock samples to be cut are placed on the clamping rod below. Then, the two main support plates are controlled to approach each other. When the main support plate located at the top moves downward, the corresponding inner column and the clamping rod are driven to move downward. The clamping rods located at different positions above contact the concave and convex surfaces on the upper surface of the coal and rock, relative to the main support plate. After moving different distances and all the clamping rods at the top are in contact with the coal rock, the reducing column at the top is controlled to rotate to clamp the clamping structure so that the clamping structure cannot move relative to the main support plate. Then, after flipping the double-rod frame half a circle, the two main support plates are controlled to move away from each other again, so that the clamping rods rotated to the top are in contact with the coal rock surface again, and then the reducing column rotated to the top is controlled to rotate 90 degrees to clamp the clamping structure, so that the clamping rods on the upper and lower sides can fully contact the coal rock, and when the two main support plates are close to each other, the clamping rods on the upper and lower sides can fully clamp the coal rock.

[0023] 2. The present invention arranges thick plates, grooves and double-headed rods. When a clamping rod contacts a location where cutting is required, the double-headed rod on the corresponding clamping rod is pushed to push the thick plate into the groove, thereby reducing the distance between the two load-bearing plates on both sides of the inner column. The variable-diameter column no longer fixes the corresponding inner column and the main support plate together. The corresponding clamping rod can be moved away from the coal rock, and the corresponding position of the coal rock can be cut. At the same time, the clamping rods at different positions can be pulled out multiple times, so that different positions can be cut without loosening the coal rock clamping state.

[0024] 3. The present invention sets a pull rope, a hook and a multi-rod frame. When the thick plate is located inside the groove, the corresponding pull rope is hung on the rod-shaped structure of the multi-rod frame through the hook. When the multi-rod frame is controlled to move away from the main support plate, multiple clamping rods can be pulled simultaneously to stably move away from the coal rock, which is convenient for cutting the coal rock. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a right view structural schematic diagram of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection between the double-headed motor and the semi-bevel gear of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection between the plug shaft and the inner groove swing plate of the present invention;

[0029] Figure 5 It is a schematic diagram of the connection between the thick plate and the double-ended rod of the present invention.

[0030] Figure 6 It is a schematic front view of part of the structure of the present invention.

[0031] Figure 7 It is a schematic diagram of the connection between the round rod and the through hole of the present invention.

[0032] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure in the middle.

[0033] In the figure: 1. Support frame; 2. Double-rod frame; 3. Double-headed power telescopic rod; 4. Reciprocating power structure; 401. Single-headed power telescopic rod A; 402. Movable rod; 403. Inner groove swing plate; 404. Insert shaft; 405. Fixed distance rod; 5. Clamping structure; 501. Inner column; 502. Force plate; 503. Thick plate; 504. Double-headed rod; 505. Clamping rod; 506. Through hole; 507. Round rod; 508. Groove; 6. Fixed angle power structure; 601. Double-headed motor; 602. Worm; 603. Worm wheel; 604. Full bevel gear; 605. Bent plate; 606. Half bevel gear; 7. Through hole; 8. Main support plate; 9. Variable diameter column; 10. Ball; 11. Multi-rod frame; 12. Single-headed power telescopic rod B; 13. Pull rope; 14. Hook. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-8 As shown, the present invention provides a technical solution: a coal rock cutting rock sample equipment, comprising a support frame 1, the inner walls on both sides of the left and right sides of the support frame 1 are rotatably penetrated by double rod frames 2, two main support plates 8 are arranged between the two double rod frames 2, each main support plate 8 is slidably sleeved on the outer surfaces of the two double rod frames 2, the two main support plates 8 are connected by two double-headed power telescopic rods 3, the middle positions of the two double-headed power telescopic rods 3 are respectively fixedly connected to the two double rod frames 2, a plurality of rows of through holes 7 are provided on the upper surface of the main support plate 8, and a reducing column 9 is rotatably inserted inside the main support plate 8 and between each two adjacent rows of through holes 7, the reducing column 9 is shaped as a circular arc structure with the left and right ends and the upper and lower ends being concentric, the arc diameters of the left and right ends of the reducing column 9 are larger than the arc diameters of the upper and lower ends of the reducing column 9, and the maximum width of the reducing column 9 is equal to the minimum distance between the two adjacent through holes 7 on the left and right.

[0036] A reciprocating power structure 4 is installed on the front of the main support plate 8, and the front end of the variable diameter column 9 is connected to the adjacent reciprocating power structure 4. The reciprocating power structure 4 includes a single-head power telescopic rod A401 and a movable rod 402. The end of the variable diameter column 9 located in front of the main support plate 8 is fixedly sleeved with an inner groove swing plate 403, and an insertion shaft 404 is inserted into the inner groove swing plate 403 for sliding. The rear end of the insertion shaft 404 is fixedly connected to the front of the movable rod 402, and the right end of the movable rod 402 is bent. The left and right sides of the right end of the movable rod 402 are provided with a distance rod 405, and the rear end of the distance rod 405 is connected to the main support plate. 8 is fixedly connected on the front side, the left end of the single-head power telescopic rod A401 is fixedly connected to the main support plate 8, and the right end of the single-head power telescopic rod A401 is fixedly connected to the right end of the movable rod 402. The movable rod 402 pushes the inner groove swing plate 403 to swing to the left through the plug shaft 404. When the movable rod 402 moves to the left and contacts the distance rod 405 on the left, the large diameter end of the variable diameter column 9 rotates to a horizontal state. When the movable rod 402 moves to the right and contacts the distance rod 405 on the right, the small diameter end of the variable diameter column 9 rotates to a horizontal state. The variable diameter column 9 can only rotate 90 degrees within the movable range of the movable rod 402.

[0037] The through hole 7 is slidably plugged with a clamping structure 5, which includes an inner column 501 and two force-bearing plates 502. The inner column 501 is located between the two force-bearing plates 502. The two force-bearing plates 502 and the inner column 501 are both slidably plugged into the through hole 7. A thick plate 503 is slidably plugged between the two force-bearing plates 502 and on the left and right sides of the inner column 501. Two rows of balls 10 are rotatably embedded on the left and right sides of the thick plate 503. The balls 10 lower and push the thick plate 503 between the inner column 501 and the force-bearing plates 502. The inner column 501 is provided with a through hole 506 which passes through the inner column 501 to the left and right. Two round rods 507 are slidably inserted into the through hole 506. The other end of the round rod 507 is fixedly connected to the adjacent force-bearing plate 502. The round rod 507 slides in the through hole 506 to ensure that the force-bearing plate 502 does not move up and down relative to the inner column 501. A double-headed rod 504 is provided on the side of the inner column 501 away from the axis of the double-rod frame 2. The upper ends of the two force-bearing plates 502 are slidably sleeved on the outer surface of the double-headed rod 504. The upper ends of the two thick plates 503 are fixedly sleeved on the outer surface of the double-headed rod 504, and the end of the inner column 501 close to the axis of the double-rod frame 2 is fixedly connected with a clamping rod 505. The left and right sides of the inner column 501 and the front and rear sides of the force-bearing plate 502 are provided with grooves 508. The depth of the grooves 508 is greater than the thickness of the thick plates 503. After the thick plates 503 enter the grooves 508, the two force-bearing plates 502 can be close to the inner column 501, so that the variable diameter column 9 cannot squeeze the force-bearing plate 502 to fix the inner column 501. The coal rock is placed between the two main support plates 8, and the upper variable diameter column 9 is controlled to release the squeezing of the upper force-bearing plate 502. The clamping rod 505 located at the top can move relative to the main support plate 8. The clamping rods 505 at different positions contact with different concave and convex surfaces of the coal rock and move different distances relative to the main support plate 8. After all the clamping rods 505 are in contact with the coal rock, the large diameter end of the variable diameter column 9 is controlled to rotate to a horizontal state. The variable diameter column 9 squeezes the adjacent force-bearing plate 502 to fix the corresponding inner column 501 to the main support plate 8.

[0038] A fixed-angle power structure 6 is installed at the rear end of the support frame 1, and the ends of the two double-rod frames 2 that are away from each other are connected to the fixed-angle power structure 6. The fixed-angle power structure 6 includes a double-headed motor 601, two worms 602, two worm wheels 603 and a full bevel gear 604. The two worm wheels 603 are respectively fixedly sleeved on the ends of the two double-rod frames 2 that are away from each other. A bent plate 605 is fixedly connected to the back of the support frame 1. The two worms 602 are respectively meshed with the upper surfaces of the two worm wheels 603. The two worms 602 are respectively rotatably connected to the left and right sides of the bent plate 605. The bent plate 605 is fixedly sleeved on the outer surface of the double-headed motor 601. The bent plate 60 5 is rotatably sleeved on the two output ends of the double-headed motor 601, and the two full bevel gears 604 are respectively fixedly sleeved on the rear ends of the two worms 602. The rear of the two full bevel gears 604 is meshed with a half bevel gear 606. The two half bevel gears 606 are respectively fixedly sleeved on the two output ends of the double-headed motor 601. When the double-headed motor 601 drives the half bevel gear 606 to mesh with the full bevel gear 604 once, the double-bar frame 2 can be driven to rotate half a circle around the worm gear 603. After the half bevel gear 606 is disengaged from the full bevel gear 604, the meshing characteristics of the worm 602 and the worm gear 603 can stabilize the angle of the double-bar frame 2. Support and limit.

[0039] A multi-rod frame 11 is provided on the side away from each other of the two main support plates 8, and the inner side of the multi-rod frame 11 is a plurality of rod-like structures. A single-head power telescopic rod B12 is fixedly inserted on the upper surface of the multi-rod frame 11, and the other end of the single-head power telescopic rod B12 is fixedly connected to the adjacent main support plate 8. A pull rope 13 is fixedly connected to the end of the inner column 501 away from the axis of the double-rod frame 2, and a hook 14 is fixedly connected to the other end of the pull rope 13. The hook 14 is hung on the surface of the rod-like structure in the multi-rod frame 11. After pushing the thick plate 503 to be located in the groove 508, the corresponding hook 14 is hung on the surface of the rod-like structure in the multi-rod frame 11. When pushing the multi-rod frame 11 away from the main support plate 8, the multiple clamping rods 505 can be pulled simultaneously to stably separate from the coal rock, which can facilitate cutting of the corresponding positions of the coal rock.

[0040] Working principle: The double-headed motor 601 drives the worm 602 and the worm wheel 603 to rotate through the meshing of the semi-bevel gear 606 and the full-bevel gear 604, and the two double-rod frames 2 rotate synchronously with the worm wheel 603. Each time the semi-bevel gear 606 meshes with the full-bevel gear 604, it can drive the worm wheel 603 and the double-rod frame 2 to flip half a circle. In the initial state, the reducer columns 9 in the two main support plates 8 are disengaged from the corresponding force-bearing plates 502, so that the clamping rods 505 in the two main support plates 8 can move relatively, and the coal and rock samples to be cut are placed on the clamping rod 505 below, and then the two main support plates 8 are controlled to approach each other. When the upper main support plate 8 moves downward, it drives the corresponding inner column 501 and the clamping rod 505 to move downward, and the clamping rods 505 at different positions above are connected to the concave and convex surfaces of the coal and rock. The two main support plates 8 are in contact with each other and move different distances relative to the main support plate 8. After all the clamping rods 505 above are in contact with the coal rock, the single-head power telescopic rod A401 drives the movable rod 402 to move, and pulls the inner groove swing plate 403 and the reducer column 9 to rotate 90 degrees through the plug shaft 404, and controls the reducer column 9 above to rotate and clamp the clamping structure 5. After controlling the double-rod frame 2 to flip half a circle, the side of the inner column 501 that is not clamped is rotated to the top, and then the double-head power telescopic rod 3 pushes the two main support plates 8 away from each other again, so that the multiple clamping rods 505 on the upper side are in contact with the coal rock again, and then the corresponding reducer column 9 is controlled to rotate to clamp and fix the force-bearing plate 502, and the position of the clamping rod 505 relative to the main support plate 8 is fixed, so that all the clamping rods 505 on the upper and lower sides of the coal rock can fully contact and clamp the coal rock.

[0041] When there is a clamping rod 505 at the coal rock cutting location, push the double-headed rod 504 on the corresponding clamping rod 505, push the thick plate 503 into the groove 508, so that the distance between the two force-bearing plates 502 on both sides of the inner column 501 is reduced, and the force-bearing plates 502 are separated from the variable diameter column 9, and then the hook 14 connected to the corresponding inner column 501 is hung on the rod-shaped structure surface of the multi-rod frame 11. When controlling the multi-rod frame 11 to move away from the main support plate 8, the pull rope 13 can simultaneously pull multiple clamping rods 505 away from the coal rock stably, so that there is a gap on the surface of the coal rock, which is convenient for cutting the coal rock.

Claims

1. A coal rock cutting rock sample device, comprising a support frame (1), characterized in that: The inner walls on both sides of the support frame (1) are rotatably penetrated by double rod frames (2), two main support plates (8) are arranged between the two double rod frames (2), each main support plate (8) is slidably sleeved on the outer surface of the two double rod frames (2), the two main support plates (8) are connected by two double-headed power telescopic rods (3), the middle positions of the two double-headed power telescopic rods (3) are respectively fixedly connected to the two double rod frames (2), and the upper surface of the main support plate (8) is provided with multiple rows of through holes (7). A variable diameter column (9) is rotatably inserted inside the main support plate (8) and between each two adjacent rows of through holes (7). A reciprocating power structure (4) is installed on the front of the main support plate (8). The front end of the variable diameter column (9) is connected to the adjacent reciprocating power structure (4). A clamping structure (5) is slidably inserted inside the through hole (7). A fixed angle power structure (6) is installed at the rear end of the support frame (1). The ends of the two double rod frames (2) that are away from each other are connected to the fixed angle power structure (6). The shape of the variable diameter column (9) is a circular arc structure with both left and right ends and upper and lower ends being concentric. The diameter of the circular arc at the left and right ends of the variable diameter column (9) is larger than the diameter of the circular arc at the upper and lower ends of the variable diameter column (9). The maximum width of the variable diameter column (9) is equal to the minimum distance between two adjacent through holes (7) on the left and right. The reciprocating power structure (4) comprises a single-head power telescopic rod A (401) and a movable rod (402); one end of the variable diameter column (9) located in front of the main support plate (8) is fixedly sleeved with an inner groove swing plate (403); an insertion shaft (404) is slidably inserted inside the inner groove swing plate (403); the rear end of the insertion shaft (404) is fixedly connected to the front of the movable rod (402); the left end of the single-head power telescopic rod A (401) is fixedly connected to the main support plate (8); the right end of the single-head power telescopic rod A (401) is fixedly connected to the right end of the movable rod (402); The clamping structure (5) comprises an inner column (501) and two force-bearing plates (502), wherein the inner column (501) is located between the two force-bearing plates (502), and the two force-bearing plates (502) and the inner column (501) are both slidably inserted into the inside of the through hole (7), and thick plates (503) are both slidably inserted between the two force-bearing plates (502) and on the left and right sides of the inner column (501), and a double-headed rod (504) is provided on the side of the inner column (501) away from the axis of the double-rod frame (2), and the upper ends of the two force-bearing plates (502) are both slidably sleeved on the outer surface of the double-headed rod (504), and the upper ends of the two thick plates (503) are both fixedly sleeved on the outer surface of the double-headed rod (504), and one end of the inner column (501) close to the axis of the double-rod frame (2) is fixedly connected to a clamping rod (505), The fixed-angle power structure (6) comprises a double-headed motor (601), two worms (602), two worm wheels (603) and a full bevel gear (604). The two worm wheels (603) are respectively fixedly sleeved on ends of two double-rod frames (2) that are away from each other. A bent plate (605) is fixedly connected to the back of the support frame (1). The two worms (602) are respectively meshed with the upper surfaces of the two worm wheels (603). The two worms (602) are respectively meshed with the left and right sides of the bent plate (605). The right side is rotatably connected, the bent plate (605) is fixedly sleeved on the outer surface of the double-headed motor (601), the bent plate (605) is rotatably sleeved on the two output ends of the double-headed motor (601), the two full bevel gears (604) are respectively fixedly sleeved on the rear ends of the two worm gears (602), the rears of the two full bevel gears (604) are meshed with half bevel gears (606), and the two half bevel gears (606) are respectively fixedly sleeved on the two output ends of the double-headed motor (601).

2. The coal rock cutting rock sample equipment according to claim 1, characterized in that: The right end of the movable rod (402) is bent, and both left and right sides of the right end of the movable rod (402) are provided with distance rods (405), and the rear end of the distance rod (405) is fixedly connected to the front side of the main support plate (8).

3. The coal rock cutting rock sample equipment according to claim 1, characterized in that: Two rows of balls (10) are rotatably embedded on the left and right sides of the thick plate (503), and a through hole (506) is opened inside the inner column (501) to pass through the left and right sides. Two round rods (507) are slidably inserted inside the through hole (506), and the other end of the round rod (507) is fixedly connected to the adjacent load-bearing plate (502).

4. The coal rock cutting rock sample equipment according to claim 1, characterized in that: Grooves (508) are provided on the left and right sides of the inner column (501) and on the front and rear sides of the load-bearing plate (502), and the depth of the grooves (508) is greater than the thickness of the thick plate (503).

5. The coal rock cutting rock sample equipment according to claim 1, characterized in that: A multi-rod frame (11) is provided on one side of the two main support plates (8) away from each other, the inner side of the multi-rod frame (11) is a plurality of rod-shaped structures, a single-head power telescopic rod B (12) is fixedly inserted on the upper surface of the multi-rod frame (11), the other end of the single-head power telescopic rod B (12) is fixedly connected to the adjacent main support plate (8), one end of the inner column (501) away from the axis of the double-rod frame (2) is fixedly connected to a pull rope (13), the other end of the pull rope (13) is fixedly connected to a hook (14), and the hook (14) is hung on the surface of the rod-shaped structure in the multi-rod frame (11).

6. The method for cutting coal and rock samples according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. First, the double-headed power telescopic rod (3) controls the two main support plates (8) to be at the maximum distance, then makes the small diameter end of the variable diameter column (9) horizontal, releases the squeezing of the force-bearing plate (502), and then places the coal and rock sample to be cut on the clamping rod (505) below, and then controls the two main support plates (8) to be close to each other, and when the main support plate (8) located above moves downward, it drives the corresponding inner column (501) and the clamping rod (505) to move downward; S2. After the upper clamping rod (505) contacts the upper surface of the coal rock sample, the clamping rods (505) at different positions contact different concave and convex surfaces of the coal rock, pushing the inner column (501) to move at different distances relative to the main support plate (8), and then the upper movable rod (402) drives the variable diameter column (9) to rotate 90 degrees, so that the maximum width of the variable diameter column (9) presses the force-bearing plate (502), and fixes the positions of the inner column (501) and the main support plate (8); S3, then the fixed-angle power structure (6) drives the double-rod frame (2) to rotate 180 degrees, driving the coal rock to flip 180 degrees, and then the double-headed power telescopic rod (3) first controls the two main support plates (8) to move away from each other, and rotates to the upper side variable diameter column (9) to loosen the clamping of the upper side force plate (502), so that the clamping rod (505) rotated to the upper side respectively contacts with the concave and convex surfaces of the coal rock surface to different degrees, so that the clamping rods (505) at different positions are displaced and moved to different degrees relative to the main support plate (8), and then the variable diameter column (9) is rotated to fix the large diameter end to the inner column (501) and the clamping rod (505), so that the clamping rods (505) on the upper and lower sides are fully in contact with the upper and lower surfaces of the coal rock, so that the upper and lower surfaces of the coal rock are subjected to more uniform force.

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