Rapid tunneling device for underground coal mine

Abstract

The utility model relates to the field of coal mining devices, in particular to an underground coal mine rapid tunneling device. The device comprises a main body of which the bottom is provided with a walking mechanism, and the front end of the main body is provided with a pair of tunneling wheels which are symmetrically arranged left and right and can walk along with the walking mechanism to excavate a coal mine; the pair of tunneling wheels is connected through a connecting shaft, the connecting shaft is in transmission connection with the walking mechanism through a third transmission part capable of increasing the torque of the tunneling wheels, each tunneling wheel comprises a wheel body and a plurality of arc-shaped cutting edges annularly arranged on the outer surface of the wheel body at equal intervals, and the cutting edge of each arc-shaped cutting edge is of a horizontal structure; a bulk coal collecting groove is formed in the main body, and a bulk coal shifting assembly capable of shifting bulk coal into the bulk coal collecting groove along with coal mine excavation of the tunneling wheel is arranged on the bulk coal shovel. An existing coal mine underground tunneling device has the problem that a flat coal seam top cannot be reserved after a coal mine is broken. And the device can keep a relatively flat coal seam top after the coal mine is crushed, and can automatically collect scattered coal.

Description

Technical Field

[0001] The utility model relates to the field of coal mining devices, and particularly relates to a rapid tunneling device for coal mines underground. Background Art

[0002] Tunneling operation is one of the most important and dangerous front-end production links in coal mining. A coal mine underground tunneling device is required for tunneling operation. The existing coal mine underground tunneling device obtains scattered coal by crushing coal mines with a tunneling wheel, and workers collect the scattered coal manually. However, after the existing tunneling wheel crushes the coal mine, a relatively flat coal seam roof cannot be retained, which is not convenient for the subsequent support installation.

[0003] Therefore, the existing coal mine underground tunneling device has the problem that a relatively flat coal seam roof cannot be retained after crushing the coal mine. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the above-mentioned shortcomings of the prior art, and provide a rapid tunneling device for coal mines underground that can retain a relatively flat coal seam roof after crushing the coal mine and can automatically collect scattered coal.

[0005] To solve the above technical problem, a rapid tunneling device for coal mines underground provided by the utility model includes a main body with a traveling mechanism installed at the bottom, a driving member for driving the traveling mechanism to travel is arranged in the main body, and a pair of symmetrically arranged on the left and right are installed at the front end of the main body, and the tunneling wheels can excavate coal mines as the traveling mechanism travels; the pair of tunneling wheels are connected by a connecting shaft, and the connecting shaft is in transmission connection with the traveling mechanism through a third transmission member that can increase the torque of the tunneling wheels. The tunneling wheel includes a wheel body and a plurality of arc-shaped cutting edges arranged at equal intervals in the circumferential direction on the outer surface of the wheel body. The arc-shaped concave surface of the arc-shaped cutting edge faces the advancing direction of the device, and the cutting edge of the arc-shaped cutting edge is in a horizontal structure; a scattered coal collecting groove is arranged in the main body, a scattered coal shovel is obliquely arranged at the front end of the entrance of the scattered coal collecting groove, and a scattered coal component that can push the scattered coal into the scattered coal collecting groove as the tunneling wheel excavates the coal mine is arranged on the scattered coal shovel.

[0006] As a further improvement of the present utility model: The traveling mechanism includes a pair of driving wheels symmetrically arranged on the left and right sides of the main body and a pair of driven wheels symmetrically arranged on the left and right sides of the main body; the pair of driving wheels are connected by a driving shaft rotatably arranged in the main body, the pair of driven wheels are connected by a first rotating shaft rotatably arranged in the main body, and the driving shaft is in transmission connection with the driving member through a first transmission member. Preferably, the first transmission member includes a groove body, and the groove body includes a first bevel gear capable of rotating under the drive of the driving member and a first worm arranged vertically. A second bevel gear meshing with the first bevel gear is fixedly installed on the smooth rod portion below the spiral teeth of the first worm; a front rotating shaft and a rear rotating shaft perpendicular to the driving shaft are rotatably installed in the groove body. One end of the front rotating shaft close to the driving shaft and one end of the rear rotating shaft close to the driving shaft are rotatably installed in the driving shaft. A first worm gear meshing with the first worm is fixedly installed at one end of the rear rotating shaft close to the first worm; a third bevel gear is fixedly installed on the driving shaft, and a fourth bevel gear meshing with the third bevel gear is fixedly installed on the portion of the rear rotating shaft between the first worm gear and the driving shaft.

[0007] As a further improvement of the present utility model: The driving member is a motor.

[0008] As a further improvement of the present utility model: The raw coal shovel includes an inclined plate installed between two triangular vertical plates. Inclined baffles for blocking raw coal from entering below the inclined plate are arranged at the bottoms of the two vertical plates; L-shaped converging plates for converging the raw coal excavated by the tunneling wheel are fixedly installed at the tops of the two vertical plates through connecting members respectively.

[0009] As a further improvement of the present utility model: The raw coal dispersing assembly includes a pair of small coal dispersing members symmetrically arranged on the front of the raw coal shovel and a pair of large coal dispersing members symmetrically arranged on the rear of the raw coal shovel; both the small coal dispersing members and the large coal dispersing members are in transmission connection with the first transmission member through a second transmission member. Preferably, both the small coal dispersing members and the large coal dispersing members include small rotating shafts vertically rotatably installed on the raw coal shovel. The small rotating shafts penetrate through the raw coal shovel, and discs are fixedly installed at the tops of the small rotating shafts. At least three fan-shaped scraping plates are circumferentially arranged at equal intervals on the outer side wall of the disc; bent push plates are vertically installed above the edges of the discs of the large coal dispersing members close to the scraping plates and above the concave surfaces of the scraping plates; arc-shaped push plates are vertically installed above the concave surfaces of the scraping plates of the small coal dispersing members. This is because the distance between the scraping plates of the large coal dispersing members is relatively large, and if the bent push plates are not provided, the coal is likely to fall onto the discs.

[0010] As a further improvement of the present utility model: One end of the front rotating shaft far from the driving shaft extends out of the groove body through the side wall of the groove body to form an extending end; The second transmission member includes a ninth bevel gear fixedly installed on the part of the front rotating shaft between the side wall of the groove body and the driving shaft, and the ninth bevel gear meshes with the third bevel gear; The second transmission member further includes a universal joint rotatably installed on the extending end, and a second worm is rotatably installed at one end of the universal joint far from the extending end. A second worm gear capable of meshing with the second worm is fixedly installed at the bottom of the small rotating shaft of the large coal distributing member on the right side. A first gear is also fixedly installed on the small rotating shaft of the large coal distributing member on the right side. A second gear capable of meshing with the first gear is fixedly installed on the small rotating shaft of the small coal distributing member on the right side. A third gear capable of meshing with the second gear is fixedly installed on the small rotating shaft of the small coal distributing member on the left side. A fourth gear capable of meshing with the third gear is fixedly installed on the small rotating shaft of the large coal distributing member on the left side.

[0011] As a further improvement of the present utility model: The connecting shaft is in transmission connection with the first transmission member in the traveling mechanism through a third transmission member. Preferably, the third transmission member includes a fifth bevel gear fixedly installed on the driving shaft and symmetrically arranged with the third bevel gear in a mirror image, and a third rotating shaft obliquely arranged in the main body; A sixth bevel gear capable of meshing with the fifth bevel gear is fixedly installed at one end of the third rotating shaft close to the driving shaft, and a seventh bevel gear is fixedly installed at one end of the third rotating shaft far from the driving shaft; A fourth rotating shaft and a fifth rotating shaft both parallel to the connecting shaft are respectively arranged above the connecting shaft in the main body. An eighth bevel gear meshing with the seventh bevel gear is fixedly installed on the fourth rotating shaft. A first small gear is fixedly installed at the left end of the fourth rotating shaft. A first large gear capable of meshing with the first small gear is fixedly installed at the left end of the fifth rotating shaft. A second small gear is fixedly installed at the right end of the fifth rotating shaft. A second large gear capable of meshing with the second small gear is fixedly installed at the right end of the connecting shaft.

[0012] The beneficial effects of the present utility model are as follows: A rapid tunneling device for underground coal mines provided by the present utility model can retain a relatively flat coal seam roof after breaking coal and can automatically collect scattered coal, and the tunneling is relatively fast at the same time. The cutting edge of the arc-shaped cutting edge of the tunneling wheel of the device is in a horizontal structure. Therefore, a relatively flat coal seam roof is retained after breaking coal, which is convenient for the installation of later support. At the same time, a scattered coal collecting groove is provided in the main body of the device, and a scattered coal distributing component capable of shoveling scattered coal into the scattered coal collecting groove as the tunneling wheel excavates coal is arranged on the scattered coal shovel. Compared with the traditional method of collecting scattered coal by workers, this automatic method of collecting scattered coal not only has a higher collection efficiency but also avoids many safety risks and reduces potential safety hazards. At the same time, the connecting shaft of the tunneling wheel of the device is in transmission connection with the traveling mechanism through a third transmission member capable of increasing the torque of the tunneling wheel, which can not only walk synchronously when the traveling mechanism walks but also increase the tunneling efficiency and make the tunneling faster. Description of the Drawings

[0013] Figure 1 This is a schematic diagram of the overall structure of the present utility model when it works in a coal mine;

[0014] Figure 2 This is the front view of the present utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the present utility model after removing the top of the main body;

[0016] Figure 4 This is a schematic diagram of the overall structure of the present utility model after removing the top of the main body and the coal-scattering collecting tank;

[0017] Figure 5 This is a schematic diagram of the overall structure of the coal-scattering shovel of the present utility model;

[0018] Figure 6 This is a schematic diagram of the overall structure of the coal-scattering shovel of the present utility model from another angle;

[0019] Figure 7 This is a schematic diagram of the overall structure of the large coal-deflecting member of the present utility model;

[0020] Figure 8 This is a schematic diagram of the overall structure of the small coal-deflecting member of the present utility model;

[0021] Figure 9 This is a schematic diagram of a partial structure of the present utility model;

[0022] Figure 10 This is a schematic diagram of the positional relationship among some of the first transmission member, the second transmission member, the large coal-deflecting member and the small coal-deflecting member of the present utility model;

[0023] Figure 11 This is a schematic diagram of the positional relationship among some of the second transmission member, the large coal-deflecting member and the small coal-deflecting member of the present utility model;

[0024] Figure 12 This is a schematic diagram of the positional relationship among the driving member, the first transmission member, the third transmission member and the tunneling wheel of the present utility model;

[0025] The names of the components corresponding to the marks in the above-mentioned drawings are as follows: 1. Main body; 101. Coal-scattering collecting tank;

[0026] 2. Traveling mechanism; 201. Driving wheel; 202. Driven wheel; 203. Driving shaft; 204. First rotating shaft;

[0027] 3. Driving member; 301. Motor;

[0028] 4. Tunneling wheel; 401. Wheel body; 402. Cutting edge; 403. Knife edge; 404. Connecting shaft;

[0029] 5. Scattered coal shovel; 501. Inclined plate; 502. Vertical plate; 503. Inclined baffle; 504. Connector; 505. L-shaped folding plate;

[0030] 6. Coal spreading component; 601. Small rotating shaft; 602. Disc; 603. Scraper; 604A. Bent pusher plate; 604B. Arc-shaped pusher plate;

[0031] 701. Tank body; 702. First bevel gear; 703. First worm; 704. Second bevel gear; 705A. Front rotating shaft; 705B. Rear rotating shaft; 706. First worm gear; 707. Third bevel gear; 708. Fourth bevel gear;

[0032] 801. Universal joint; 802. Second worm; 803. Second worm gear; 804. First gear; 805. Second gear; 806. Third gear; 807. Fourth gear; 808. Ninth bevel gear;

[0033] 901. Fifth bevel gear; 902. Third rotating shaft; 903. Sixth bevel gear; 904. Seventh bevel gear; 905. Fourth rotating shaft; 906. Fifth rotating shaft; 907. Eighth bevel gear; 908. First small gear; 909. First large gear; 9010. Second small gear; 9011. Second large gear;

[0034] 10. Coal mine; 11. Road. Specific embodiments

[0035] The following further elaborates on the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0036] Definitions of relevant terms involved in the present utility model:

[0037] (1) In the present utility model, orientation terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. are all based on Figure 2 the defined direction.

[0038] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 9As shown in the figure, the rapid tunneling device for coal mines provided by the utility model includes a main body 1 with a traveling mechanism 2 installed at the bottom. In the space inside the main body 1 below the coal scattering collection tank 101, a driving member 3 for driving the traveling mechanism 2 to travel is provided. The driving member 3 is a motor 301. The traveling mechanism 2 includes a pair of driving wheels 201 symmetrically arranged on the left and right sides of the main body 1 and a pair of driven wheels 202 symmetrically arranged on the left and right sides of the main body 1. A pair of driving wheels 201 are connected by a driving shaft 203 rotatably arranged in the main body 1, and a pair of driven wheels 202 are connected by a first rotating shaft 204 rotatably arranged in the main body 1. The driving shaft 203 is in transmission connection with the driving member 3 through a first transmission member. The first transmission member includes a trough body 701. The trough body 701 includes a first bevel gear 702 that can rotate under the drive of the driving member 3 and a vertically arranged first worm 703. The first bevel gear 702 is fixedly installed on the output shaft of the motor 301. A second bevel gear 704 meshing with the first bevel gear 702 is fixedly installed on the smooth rod part below the spiral teeth of the first worm 703. A front rotating shaft 705A and a rear rotating shaft 705B both perpendicular to the driving shaft 203 are rotatably installed in the trough body 701. One end of the front rotating shaft 705A close to the driving shaft 203 and one end of the rear rotating shaft 705B close to the driving shaft 203 are both rotatably installed in the driving shaft 203. The central axes of the front rotating shaft 705A and the rear rotating shaft 705B are on the same straight line. A first worm gear 706 meshing with the first worm 703 is fixedly installed at one end of the rear rotating shaft 705B close to the first worm 703. A third bevel gear 707 is fixedly installed on the driving shaft 203. A fourth bevel gear 708 meshing with the third bevel gear 707 is fixedly installed on the part of the rear rotating shaft 705B between the first worm gear 706 and the driving shaft 203.

[0039] As Figure 1 , Figure 2 , Figure 4 , Figure 12As shown in the figure, a pair of symmetrically arranged left and right tunneling wheels 4 capable of excavating coal mines as the traveling mechanism 2 travels are installed at the front end of the main body 1. The pair of tunneling wheels 4 are connected by a connecting shaft 404, and the connecting shaft 404 is in transmission connection with the first transmission member in the traveling mechanism 2 through a third transmission member capable of increasing the torque of the tunneling wheels 4. The third transmission member includes a fifth bevel gear 901 fixedly installed on the driving shaft 203 and mirror-symmetrically arranged with the third bevel gear 707, and a third rotating shaft 902 obliquely arranged in the main body 1. A sixth bevel gear 903 capable of meshing with the fifth bevel gear 901 is fixedly installed at one end of the third rotating shaft 902 close to the driving shaft 203, and a seventh bevel gear 904 is fixedly installed at the other end of the third rotating shaft 902 away from the driving shaft 203. Inside the main body 1, a fourth rotating shaft 905 and a fifth rotating shaft 906 parallel to the connecting shaft 404 are respectively arranged above the connecting shaft 404. An eighth bevel gear 907 meshing with the seventh bevel gear 904 is fixedly installed on the fourth rotating shaft 905, a first small gear 908 is fixedly installed at the left end of the fourth rotating shaft 905, a first large gear 909 capable of meshing with the first small gear 908 is fixedly installed at the left end of the fifth rotating shaft 906, a second small gear 9010 is fixedly installed at the right end of the fifth rotating shaft 906, and a second large gear 9011 capable of meshing with the second small gear 9010 is fixedly installed at the right end of the connecting shaft 404.

[0040] As Figure 4 shown, the tunneling wheel 4 includes a wheel body 401 and a plurality of arc-shaped cutting edges 402 arranged at equal intervals in the circumferential direction on the outer surface of the wheel body 401. The arc-shaped concave surface of the arc-shaped cutting edge 402 faces the advancing direction of the device, and the cutting edge 403 of the arc-shaped cutting edge 402 is in a horizontal structure.

[0041] As shown in FIGS. 2, Figure 5 , Figure 6 shown, a coal scattering collection tank 101 is provided inside the main body 1. A coal scattering shovel 5 is obliquely arranged at the front end of the entrance of the coal scattering collection tank 101. The coal scattering shovel 5 includes an inclined plate 501, and the inclined plate 501 is installed between two triangular vertical plates 502. Inclined baffles 503 for blocking the scattered coal from entering below the inclined plate 501 are arranged at the bottoms of the two vertical plates 502. L-shaped collecting plates 505 for collecting the scattered coal excavated by the tunneling wheels 4 are fixedly installed at the tops of the two vertical plates 502 through connecting members 504 respectively.

[0042] As Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 10 , Figure 11As shown, the loose coal shovel 5 is provided with a loose coal assembly 6 that can move loose coal into the loose coal collecting trough 101 as the excavation wheel 4 excavates the coal mine. The loose coal assembly 6 includes a pair of small coal-moving parts symmetrically arranged in front of the loose coal shovel 5 and a pair of large coal-moving parts symmetrically arranged behind the loose coal shovel 5. The small coal-moving parts and the large coal-moving parts are both connected to the first transmission part through the second transmission part. The small coal-moving parts and the large coal-moving parts both include a small rotating shaft 601 vertically rotatably mounted on the loose coal shovel 5, the small rotating shaft 601 passes through the inclined plate 501 of the loose coal shovel 5, a disc 602 is fixedly mounted on the top of the small rotating shaft 601, and at least three fan-shaped scrapers 603 are equidistantly arranged on the outer wall of the disc 602 in an annular direction, and the bottoms of the disc 602 and the scrapers 603 are in contact with the top of the loose coal shovel 5. A bent push plate 604A is vertically installed at the edge of each disc 602 of the large coal-shoveling member near the scraper 603 and above the concave surface of each scraper 603. An arc-shaped push plate 604B is vertically installed above the concave surface of each scraper 603 of the small coal-shoveling member. One end of the front rotating shaft 705A away from the driving shaft 203 extends from the side wall of the tank body 701 to the outside of the tank body 701 to form a protruding end. The second transmission member includes a ninth bevel gear 808 fixedly installed on the portion of the front rotating shaft 705A located between the side wall of the tank body 701 and the driving shaft 203, and the ninth bevel gear 808 is meshed with the third bevel gear 707. The second transmission member also includes a universal joint 801 rotatably mounted on the protruding end, a second worm 802 is rotatably mounted on the end of the universal joint 801 away from the protruding end, a second worm wheel 803 capable of meshing with the second worm 802 is fixedly mounted on the bottom of the small rotating shaft 601 of the large coal shifting member on the right, a first gear 804 is also fixedly mounted on the small rotating shaft 601 of the large coal shifting member on the right, a second gear 805 capable of meshing with the first gear 804 is fixedly mounted on the small rotating shaft 601 of the small coal shifting member on the right, a third gear 806 capable of meshing with the second gear 805 is fixedly mounted on the small rotating shaft 601 of the small coal shifting member on the left, and a fourth gear 807 capable of meshing with the third gear 806 is fixedly mounted on the small rotating shaft 601 of the large coal shifting member on the left.

[0043] The working principle of the utility model is as follows: the underground rapid excavation device for a coal mine is parked in front of a coal mine 10 to be excavated, and the device is located on a paved road 11. The motor 301 is started, and the motor 301 drives the first bevel gear 702 to rotate, and the first bevel gear 702 drives the first worm 703 to rotate through the second bevel gear 704, and the first worm 703 drives the rear shaft 705B to rotate through the first worm gear 706, and the rear shaft 705B drives the third bevel gear 707 to rotate through the fourth bevel gear 708, and the third bevel gear 707 drives the driving shaft 203 to rotate, and the driving shaft 203 drives a pair of driving wheels 201 to rotate, and a pair of driven wheels 202 rotate accordingly, and the first shaft 204 also rotates with the rotation of the driven wheels 202.

[0044] The rapid tunneling device underground in the coal mine starts to move. At the same time, the fifth bevel gear 901 rotates with the rotation of the driving shaft 203. The fifth bevel gear 901 drives the third rotating shaft 902 to rotate through the sixth bevel gear 903. The third rotating shaft 902 drives the eighth bevel gear 907 to rotate through the seventh bevel gear 904. The eighth bevel gear 907 drives the fourth rotating shaft 905 to rotate. The fourth rotating shaft 905 drives the first small gear 908 to rotate. The first small gear 908 drives the fifth rotating shaft 906 to rotate through the first large gear 909. The fifth rotating shaft 906 drives the second small gear 9010 to rotate. The second small gear 9010 drives the connecting shaft 404 to rotate through the second large gear 9011. The connecting shaft 404 drives a pair of tunneling wheels 4 to rotate simultaneously. In this process, through the cooperation of the fourth rotating shaft 905, the first small gear 908, the first large gear 909, the fifth rotating shaft 906, the second small gear 9010 and the second large gear 9011, the torque of the tunneling wheel 4 is increased and the tunneling efficiency is improved. As the wheel body 401 of the tunneling wheel 4 rotates, the arc-shaped cutting edge 402 on the outer surface of the wheel body 401 starts to excavate the coal mine. Since the cutting edge 403 of the arc-shaped cutting edge 402 is in a horizontal structure, after the device drills out the coal seam, a relatively flat coal seam roof can be reserved, which is convenient for the later installation of support.

[0045] As the tunneling wheel 4 continuously tunnels the coal seam, under the action of the inclined baffle 503 and the L-shaped converging plate 505, the scattered coal continuously falls and is gathered onto the inclined plate 501. At the same time when the rapid tunneling device underground in the coal mine starts to move and tunnel, the third bevel gear 707 drives the front rotating shaft 705A to rotate through the ninth bevel gear 808. The front rotating shaft 705A drives the second worm 802 to rotate through the universal joint 801. The second worm 802 drives the second worm gear 803 to rotate. The second worm gear 803 drives the first gear 804 to rotate through the small rotating shaft 601 of the large coal pushing member on the right side. The first gear 804 drives the small rotating shaft 601 of the small coal pushing member on the right side and the third gear 806 to rotate through the second gear 805. The third gear 806 drives the small rotating shaft 601 of the small coal pushing member on the left side and the fourth gear 807 to rotate. The fourth gear 807 drives the rotation of the small rotating shaft 601 of the large coal pushing member on the left side. When the four small rotating shafts 601 rotate, they will respectively drive the disc 602 to rotate and the scraper 603 to rotate. The bent-shaped push plate 604A and the arc-shaped push plate 604B also start to rotate, and the scattered coal on the inclined plate 501 is pushed backward and dialed into the scattered coal collection tank 101, and it can be uniformly transported after the tunneling operation is completed, without the need for manual collection of scattered coal.

[0046] It should be noted that the present invention is not limited to the specific structures shown in the drawings in the above embodiments, and various changes can be made within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A rapid tunneling device for underground coal mines, characterized in that, It includes a main body (1) with a traveling mechanism (2) installed at the bottom. A driving member (3) for driving the traveling of the traveling mechanism (2) is provided in the main body (1). At the front end of the main body (1), a pair of tunneling wheels (4) that are symmetrically arranged left and right and can excavate coal mines as the traveling mechanism (2) travels are installed. A pair of the tunneling wheels (4) are connected by a connecting shaft (404). The connecting shaft (404) is in transmission connection with the traveling mechanism (2) through a third transmission member that can increase the torque of the tunneling wheels (4). The tunneling wheel (4) includes a wheel body (401) and a plurality of arc-shaped cutting edges (402) arranged at equal intervals in the circumferential direction on the outer surface of the wheel body (401). The arc-shaped concave surface of the arc-shaped cutting edge (402) faces the advancing direction of the device, and the cutting edge (403) of the arc-shaped cutting edge (402) is in a horizontal structure. A coal scattering collection tank (101) is provided inside the main body (1). At the front end of the entrance of the coal scattering collection tank (101), a coal scattering shovel (5) is inclined. A coal scattering component (6) that can scatter coal into the coal scattering collection tank (101) as the tunneling wheel (4) excavates the coal mine is provided on the coal scattering shovel (5).

2. The rapid tunneling device for underground coal mines according to claim 1, characterized in that, The traveling mechanism (2) includes a pair of driving wheels (201) symmetrically arranged on the left and right sides of the main body (1) and a pair of driven wheels (202) symmetrically arranged on the left and right sides of the main body (1). A pair of the driving wheels (201) are connected by a driving shaft (203) rotatably arranged in the main body (1). A pair of the driven wheels (202) are connected by a first rotating shaft (204) rotatably arranged in the main body (1). The driving shaft (203) is in transmission connection with the driving member (3) through a first transmission member.

3. The rapid tunneling device for underground coal mines according to claim 2, characterized in that, The first transmission member includes a groove body (701). The groove body (701) includes a first bevel gear (702) that can rotate under the drive of the driving member (3) and a first worm (703) arranged vertically. A second bevel gear (704) meshing with the first bevel gear (702) is fixedly installed on the smooth rod part below the spiral teeth of the first worm (703). A front rotating shaft (705A) and a rear rotating shaft (705B) that are both perpendicular to the driving shaft (203) are rotatably installed in the groove body (701). One end of the front rotating shaft (705A) close to the driving shaft (203) and one end of the rear rotating shaft (705B) close to the driving shaft (203) are both rotatably installed in the driving shaft (203). A first worm gear (706) meshing with the first worm (703) is fixedly installed on one end of the rear rotating shaft (705B) close to the first worm (703). A third bevel gear (707) is fixedly installed on the driving shaft (203). A fourth bevel gear (708) meshing with the third bevel gear (707) is fixedly installed on the part of the rear rotating shaft (705B) between the first worm gear (706) and the driving shaft (203).

4. A rapid tunneling device for underground coal mines according to any one of claims 1 to 3, characterized in that, The driving member (3) is a motor (301).

5. A rapid tunneling device for underground coal mines according to any one of claims 1 to 3, characterized in that, The loose coal shovel (5) comprises an inclined plate (501), wherein the inclined plate (501) is installed between two triangular vertical plates (502), and the bottoms of the two vertical plates (502) are each provided with an inclined baffle (503) for preventing loose coal from entering below the inclined plate (501); L-shaped gathering plates (505) for gathering loose coal excavated by the tunneling wheel (4) are fixedly mounted on the tops of the two vertical plates (502) via connecting pieces (504).

6. A rapid tunneling device for underground coal mines according to claim 3, characterized in that, The coal spreading assembly (6) comprises a pair of small coal spreading parts symmetrically arranged in front of the coal spreading shovel (5) and a pair of large coal spreading parts symmetrically arranged behind the coal spreading shovel (5); The small coal shifting member and the large coal shifting member are both transmission-connected to the first transmission member via the second transmission member.

7. The rapid tunneling device for underground coal mines according to claim 6, characterized in that, The small coal-shoveling member and the large coal-shoveling member both comprise a small rotating shaft (601) vertically rotatably mounted on the loose coal shovel (5), the small rotating shaft (601) passing through the loose coal shovel (5), a disc (602) being fixedly mounted on the top of the small rotating shaft (601), and at least three fan-shaped scrapers (603) being equidistantly arranged in an annular direction on the outer side wall of the disc (602); A bent push plate (604A) is vertically installed at the edge of each disc (602) of the large coal-shoveling member close to the scraper (603) and above the concave surface of each scraper (603); An arc-shaped push plate (604B) is vertically installed above the concave surface of each scraper (603) of the small coal-shoveling member.

8. A rapid tunneling device for underground coal mines according to claim 7, characterized in that, One end of the front rotating shaft (705A) away from the driving shaft (203) extends from the side wall of the tank body (701) to the outside of the tank body (701) to form a protruding end; The second transmission member comprises a ninth bevel gear (808) fixedly mounted on a portion of the front rotating shaft (705A) located between the side wall of the trough body (701) and the driving shaft (203), and the ninth bevel gear (808) is meshed with the third bevel gear (707); The second transmission member also includes a universal joint (801) rotatably mounted on the protruding end, a second worm (802) rotatably mounted on an end of the universal joint (801) away from the protruding end, a second worm wheel (803) capable of meshing with the second worm (802) is fixedly mounted on the bottom of the small rotating shaft (601) of the large coal shifting member located on the right side, a first gear (804) is also fixedly mounted on the small rotating shaft (601) of the large coal shifting member located on the right side, a second gear (805) capable of meshing with the first gear (804) is fixedly mounted on the small rotating shaft (601) of the small coal shifting member located on the right side, a third gear (806) capable of meshing with the second gear (805) is fixedly mounted on the small rotating shaft (601) of the small coal shifting member located on the left side, and a fourth gear (807) capable of meshing with the third gear (806) is fixedly mounted on the small rotating shaft (601) of the large coal shifting member located on the left side.

9. The rapid tunneling device for underground coal mines according to claim 3, characterized in that, The connecting shaft (404) is transmission-connected to the first transmission member in the walking mechanism (2) via the third transmission member.

10. A rapid tunneling device for underground coal mines according to claim 9, characterized in that, The third transmission member includes a fifth bevel gear (901) fixedly installed on the driving shaft (203) and arranged symmetrically with the third bevel gear (707) in a mirror image, and a third rotating shaft (902) inclinedly arranged in the main body (1); A sixth bevel gear (903) capable of meshing with the fifth bevel gear (901) is fixedly installed at one end of the third rotating shaft (902) close to the driving shaft (203), and a seventh bevel gear (904) is fixedly installed at the other end of the third rotating shaft (902) away from the driving shaft (203); A fourth rotating shaft (905) and a fifth rotating shaft (906) parallel to the connecting shaft (404) are respectively arranged above the connecting shaft (404) in the main body (1). An eighth bevel gear (907) meshing with the seventh bevel gear (904) is fixedly installed on the fourth rotating shaft (905). A first small gear (908) is fixedly installed at the left end of the fourth rotating shaft (905). A first large gear (909) capable of meshing with the first small gear (908) is fixedly installed at the left end of the fifth rotating shaft (906). A second small gear (9010) is fixedly installed at the right end of the fifth rotating shaft (906). A second large gear (9011) capable of meshing with the second small gear (9010) is fixedly installed at the right end of the connecting shaft (404).

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