A coal mine tunnel conveying and crushing system

Abstract

This invention relates to the field of coal mining technology, specifically disclosing a coal mine roadway conveying and crushing system, including a frame and a conveying platform. The side wall of the frame is equipped with an adjustment mechanism, which includes two fixed blocks, both fixedly connected to the side wall of the frame. A cylinder is slidably inserted into the surface of each fixed block. A limiting ring frame is fixedly connected to the end of each cylinder that is close to the other. A first motor is installed inside the limiting ring frame, and the output end of the first motor is fixedly connected to a crushing cylinder. This invention, by setting a convex plate, can adjust the distance between the two crushing cylinders when extended vertically, thereby achieving a better crushing effect on large coal blocks. When extended horizontally, the convex plate can adjust the water flow rate in the guide pipe, allowing the crushing cylinder to spray water mist with different flow rates for coal blocks of different sizes during crushing, thus improving adaptability.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining, and in particular relates to a coal mine tunnel conveying and crushing system. Background Art

[0002] Coal mine tunnels are excavated in underground coal seams and are various passages used for mining, ventilation, drainage, pedestrian and other activities. In coal mining, the mined coal needs to be transported to the crushing machine through a conveying system for crushing. In the existing crushing device, the spacing between the crushing rollers is not easy to adjust, and it is not easy to adjust for coal blocks of different sizes. The effect is not good when crushing larger coal blocks.

[0003] In the Chinese patent with publication number CN217189871U, a crusher used for coal mining is mentioned. The specification discloses that most of the conventional crushers crush coal blocks by rotating two sets of crushing shafts in opposite directions, but the spacing between the two sets of crushing shafts cannot be adjusted. When encountering large coal blocks, it is not possible to crush them well, and it is necessary to replace the crusher with other specifications to crush them, resulting in poor adaptability of the device;

[0004] The above application can prove the defects of the prior art. Summary of the invention

[0005] The object of the present invention is to provide a coal mine tunnel conveying and crushing system to solve the problem that the existing crushing device in the prior art has the problem that the spacing between the crushing rollers is not easy to adjust and is not easy to adjust for coal blocks of different sizes.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coal mine tunnel conveying and crushing system, comprising a frame and a conveying platform, the side wall of the frame is provided with an adjusting mechanism, the adjusting mechanism comprises two fixed blocks, the two fixed blocks are fixedly connected to the side wall of the frame, a cylinder is slidably inserted on the surface of the fixed block, the ends of the two cylinders close to each other are fixedly connected to a limiting ring frame, a first motor is installed inside the limiting ring frame, a crushing barrel is fixedly connected to the output end of the first motor, and the end of the crushing barrel close to the first motor is rotatably connected to the limiting ring frame.

[0007] Preferably: a second motor is fixedly connected to the side wall of the frame, an output end of the second motor is fixedly connected to a connecting block, both ends of the connecting block are slidably connected to sliding rods, the ends of the two sliding rods away from each other are fixedly connected to convex plates, two first electric push rods are fixedly connected to the surface of the connecting block, an output end of the first electric push rod is fixedly connected to a block, and the two blocks are respectively fixedly connected to the surfaces of the two convex plates.

[0008] Preferably, the arc surface of the cylinder is sleeved with a first spring, and two ends of the first spring are fixedly connected to the fixing block and the cylinder respectively.

[0009] Preferably: a dust reduction mechanism is provided inside the crushing cylinder, and the dust reduction mechanism includes two water pipes, the two water pipes are fixedly connected to the insides of the two crushing cylinders respectively, a plurality of atomizing nozzles are installed on the arc surface of the water pipe, a plurality of circular holes are opened on the arc surface of the crushing cylinder, one end of the water pipe close to the first motor is rotatably connected with a card joint, the end of the card joint away from the water pipe is connected with a conduit, the other end of the conduit is connected with a water tank, and the two water tanks are respectively installed on both sides of the frame.

[0010] Preferably: the side wall of the frame is fixedly connected to two limit frames, the side wall of the limit frame is provided with two rectangular holes, the inner walls of the two rectangular holes are slidably connected to inclined blocks, the surfaces of the two inclined blocks are fixedly connected to support rods, the ends of the two support rods away from the inclined blocks are fixedly connected to pressure plates, and the conduit is in contact with the inner wall of the limit frame.

[0011] Preferably, a limiting hole is provided on the arc surface of the limiting ring frame, and the conduit passes through the limiting ring frame via the limiting hole.

[0012] Preferably, the arc surface of the support rod is sleeved with a second spring, and two ends of the second spring are respectively fixedly connected to the pressing plate and the limiting frame.

[0013] Preferably: the side wall of the frame is provided with an auxiliary mechanism, the auxiliary mechanism includes an annular rail, the annular rail is fixedly connected to the side wall of the frame, the inside of the annular rail is slidably connected with an arc plate, the inner arc surface of the arc plate is fixedly connected with a fixed plate, the surface of the fixed plate is rotatably connected with a long rod, the circular arc surface of the long rod is fixedly connected with a baffle, the circular arc surface of the long rod is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the fixed plate and the long rod.

[0014] Preferably: the arc surface of the arc plate is fixedly connected with a rectangular block, the surface of the rectangular block is threadedly connected with a pull rod, one end of the pull rod is rotatably connected with a clamping plate, the arc surface of the pull rod is sleeved with a third spring, and the two ends of the third spring are respectively fixedly connected to the rectangular block and the clamping plate.

[0015] Preferably: a second electric push rod is fixedly connected to the surface of the fixed plate, two pillars are fixedly connected to the bottom of the frame, a connecting frame is fixedly connected to the bottom ends of the two pillars, a fixing rod is fixedly connected to the surface of the connecting frame, a filter plate is rotatably connected to the circular arc surface of the fixing rod, and a threaded ring is threadedly connected to the circular arc surface of the fixing rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention arranges a convex plate. When the convex plate is extended in the vertical direction, the distance between the two crushing cylinders can be adjusted, thereby achieving a good crushing effect on large coal blocks. When the convex plate is extended in the horizontal direction, the flow rate of water in the conduit can be adjusted, so that the crushing cylinder can spray water mist with different flow rates for coal blocks of different volumes during crushing, and has better adaptability.

[0017] 2. The present invention provides a baffle and a torsion spring. When the conveyor platform is conveying coal blocks, the baffle can be used to limit the position of the baffle to prevent large coal blocks from easily rushing out of the crushing range of the crushing drum due to their large inertia. When the coal is not crushed, the baffle can repeatedly impact the filter plate through the change of position, causing the filter plate to vibrate, making it easier for water stains on the coal blocks to drip off.

[0018] 3. The present invention sets a water pipe, and the rotation of the crushing drum can make the water pipe rotate together, so that water mist can be sprayed during crushing. By spraying water, the water droplets can collide with the coal mine dust, so that the dust is infiltrated by water, the mass increases, and falls under the influence of gravity, thereby effectively reducing the dust content in the air. Water spraying can also prevent coal from spontaneous combustion, which can not only reduce environmental pollution and safety hazards, but also improve the safety and efficiency of coal mining.

[0019] 4. By setting an arc plate, the arc plate is shielded above the frame, which can form a shield when the crushing drum crushes the coal blocks, thereby blocking the flying broken coal blocks and improving the safety during the crushing period. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the front view structure of

[0022] Figure 3 It is a structural schematic diagram of the crushing tube of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the partial split structure;

[0024] Figure 5 It is a partial structural schematic diagram of the regulating mechanism of the present invention;

[0025] Figure 6 It is a partial structural schematic diagram of the dust reduction mechanism of the present invention;

[0026] Figure 7 It is a partial structural schematic diagram of the auxiliary mechanism of the present invention;

[0027] Figure 8 For the present invention Figure 1 Schematic diagram of the structure at A in the middle;

[0028] Fig. 9 For the present invention Figure 7 Schematic diagram of part of the structure after the change of position.

[0029] In the figure: 1, frame; 11, conveying platform; 2, adjustment mechanism; 201, fixing block; 202, cylinder; 203, limiting ring frame; 204, first motor; 205, crushing cylinder; 206, second motor; 207, connecting block; 208, sliding rod; 209, convex plate; 210, first electric push rod; 211, block; 212, first spring; 3, dust suppression mechanism; 301, water pipe; 302, atomizing nozzle; 303, round hole; 304, clamping joint; 305, conduit; 306, limiting hole; 307, water Box; 308, limit frame; 309, rectangular hole; 310, inclined block; 311, support rod; 312, pressure plate; 313, second spring; 4, auxiliary mechanism; 401, annular rail; 402, arc plate; 403, fixed plate; 404, long rod; 405, baffle; 406, torsion spring; 407, second electric push rod; 408, rectangular block; 409, pull rod; 410, card plate; 411, third spring; 412, pillar; 413, connecting frame; 414, fixed rod; 415, filter plate; 416, threaded ring. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 9 As shown, the present invention provides a coal mine tunnel conveying and crushing system, including a frame 1 and a conveying platform 11, the side wall of the frame 1 is provided with an adjusting mechanism 2, the adjusting mechanism 2 includes two fixed blocks 201, the two fixed blocks 201 are fixedly connected to the side wall of the frame 1, a cylinder 202 is slidably inserted on the surface of the fixed block 201, the ends of the two cylinders 202 close to each other are fixedly connected to a limiting ring frame 203, a first motor 204 is installed inside the limiting ring frame 203, the output end of the first motor 204 is fixedly connected to a crushing barrel 205, and the end of the crushing barrel 205 close to the first motor 204 is rotatably connected to the limiting ring frame 203.

[0032] In this embodiment, the conveying platform 11 is installed on the frame 1. There is a conveyor belt on the conveying platform 11 for transporting coal. The positions of the two limit ring frames 203 can be adjusted by sliding the two cylinders 202, thereby achieving the effect of adjusting the distance between the two crushing cylinders 205.

[0033] In a further embodiment, referring to Figure 2 and Figure 5 As shown, the side wall of the frame 1 is fixedly connected with a second motor 206, the output end of the second motor 206 is fixedly connected with a connection block 207, both ends of the connection block 207 are slidably connected with slide bars 208, and the ends of the two slide bars 208 that are away from each other are fixedly connected with convex plates 209, and the surface of the connection block 207 is fixedly connected with two first electric push rods 210, and the output end of the first electric push rod 210 is fixedly connected with a block 211, and the two blocks 211 are respectively fixedly connected to the surfaces of the two convex plates 209. The arc surface of the cylinder 202 is sleeved with a first spring 212, and the two ends of the first spring 212 are respectively fixedly connected to the fixed block 201 and the cylinder 202.

[0034] In this embodiment, the two protruding plates 209 and the connecting block 207 are combined into an elliptical plate shape. When the protruding plate 209 is extended in the vertical direction, the distance between the two crushing cylinders 205 can be adjusted, thereby achieving a good crushing effect on large coal blocks.

[0035] In a further embodiment, referring to Figure 2 , Figure 3 and Figure 4 As shown, a dust reduction mechanism 3 is provided inside the crushing cylinder 205, and the dust reduction mechanism 3 includes two water pipes 301, which are respectively fixedly connected to the inside of the two crushing cylinders 205, and a plurality of atomizing nozzles 302 are installed on the arc surface of the water pipe 301, and a plurality of circular holes 303 are opened on the arc surface of the crushing cylinder 205. One end of the water pipe 301 close to the first motor 204 is rotatably connected with a clamping joint 304, and one end of the clamping joint 304 away from the water pipe 301 is connected with a conduit 305, and the other end of the conduit 305 is connected with a water tank 307. The two water tanks 307 are respectively installed on both sides of the frame 1, and a water pump is provided inside the water tank 307, and the water pump is connected with the conduit 305.

[0036] In this embodiment, the conduit 305 is a hose, the water pipe 301 is a steel pipe, the position of the atomizing nozzle 302 corresponds to the position of the circular hole 303, the atomizing nozzle 302 does not extend out of the circular hole 303, and the clamping joint 304 is a prior art, that is, there is a clamping ring inside the clamping joint 304 for rotation, and the clamping ring is connected to the water pipe 301, so that the water pipe 301 can rotate with the crushing barrel 205, while the conduit 305 can remain stationary.

[0037] In a further embodiment, referring to Figure 6As shown, the side wall of the frame 1 is fixedly connected with two limit frames 308, and the side wall of the limit frame 308 is provided with two rectangular holes 309, and the inner walls of the two rectangular holes 309 are slidably connected with inclined blocks 310, and the surfaces of the two inclined blocks 310 are fixedly connected with support rods 311, and the ends of the two support rods 311 away from the inclined blocks 310 are fixedly connected with a pressure plate 312, and the conduit 305 is in contact with the inner wall of the limit frame 308. The arc surface of the limit ring frame 203 is provided with a limit hole 306, and the conduit 305 passes through the limit ring frame 203 with the help of the limit hole 306. The arc surface of the support rod 311 is covered with a second spring 313, and the two ends of the second spring 313 are fixedly connected with the pressure plate 312 and the limit frame 308 respectively.

[0038] In this embodiment, when the convex plate 209 is extended in the horizontal direction, the flow rate of water in the conduit 305 can be adjusted, so that the crushing barrel 205 can spray water mist with different flow rates for coal blocks of different volumes during crushing, thereby achieving better adaptability.

[0039] In a further embodiment, referring to Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the side wall of the frame 1 is provided with an auxiliary mechanism 4, which includes an annular rail 401, which is fixedly connected to the side wall of the frame 1, and the inner part of the annular rail 401 is slidably connected with an arc plate 402, the inner arc surface of the arc plate 402 is fixedly connected with a fixed plate 403, the surface of the fixed plate 403 is rotatably connected with a long rod 404, the circular arc surface of the long rod 404 is fixedly connected with a baffle 405, and the circular arc surface of the long rod 404 is sleeved with a torsion spring 406, and the two ends of the torsion spring 406 are respectively fixedly connected to the fixed plate 403 and the long rod 404.

[0040] The arc surface of the arc plate 402 is fixedly connected to a rectangular block 408, the surface of the rectangular block 408 is threadedly connected to a pull rod 409, one end of the pull rod 409 is rotatably connected to a clamping plate 410, the arc surface of the pull rod 409 is sleeved with a third spring 411, and the two ends of the third spring 411 are respectively fixedly connected to the rectangular block 408 and the clamping plate 410.

[0041] In this embodiment, the second electric push rod 407 serves to block the baffle 405 to prevent the baffle 405 from being hit and rotating at an excessive angle. The third spring 411 serves to limit the position of the card plate 410, so that the card plate 410 is not easy to rotate. The arc plate 402 blocks the top of the frame 1, and can form a shield when the crushing drum 205 crushes the coal blocks, thereby blocking the flying broken coal blocks and improving the safety during the crushing period.

[0042] In a further embodiment, referring to Figure 7 and Fig. 9As shown, the surface of the fixed plate 403 is fixedly connected to the second electric push rod 407, the bottom of the frame 1 is fixedly connected to two pillars 412, the bottom ends of the two pillars 412 are fixedly connected to a connecting frame 413, the surface of the connecting frame 413 is fixedly connected to a fixing rod 414, the arc surface of the fixing rod 414 is rotatably connected to a filter plate 415, and the arc surface of the fixing rod 414 is threadedly connected to a threaded ring 416.

[0043] In this embodiment, when the conveying platform 11 transports coal blocks, the baffle 405 can be used to limit the larger coal blocks from easily rushing out of the crushing range of the crushing drum 205 due to their large inertia. When the coal is not crushed, the baffle 405 can repeatedly impact the filter plate 415 through the change of position, causing the filter plate 415 to vibrate, thereby facilitating the dripping of water stains on the coal blocks.

[0044] The working principle of the present invention is as follows: when in use, the screened coal blocks are transported through the conveying platform 11. When encountering a large coal block, the first electric push rod 210 is started, and the first electric push rod 210 pushes the convex plate 209 to move. The convex plate 209 will squeeze the two limit ring frames 203, and the two limit ring frames 203 will move away from each other. At this time, the first spring 212 is in a stretched state. At this time, the distance between the two crushing cylinders 205 will be pulled apart, and the first motor 204 drives the crushing cylinder 205 to rotate. The water pump in the water tank 307 can transport water into the conduit 305. At this time, the coal block falls into the The coal will be crushed between the two crushing cylinders 205. When the crushing cylinders 205 rotate, the water mist sprayed by the atomizing nozzle 302 will be sprayed out from the circular hole 303, thereby achieving the effect of dust reduction. When the coal blocks fall from the conveying platform 11, some coal blocks with slightly smaller volumes will directly fall between the two crushing cylinders 205. If some coal blocks with larger volumes rush out of the two crushing cylinders 205 due to excessive inertia, they will be blocked by the baffle 405. The baffle 405 will rotate when hit, but the rotation angle will not be large and will be blocked by the second electric push rod 407. In this way, the coal blocks will accurately fall between the two crushing cylinders 205.

[0045] When encountering a smaller coal block, the second motor 206 is started, and the second motor 206 drives the connecting block 207 to rotate. During the rotation process, the two convex plates 209 will squeeze the inclined blocks 310 on both sides. The two convex plates 209 squeeze the inclined blocks 310 on both sides from the upper side and the lower side respectively. The inclined blocks 310 are squeezed and contracted, and the second spring 313 is stretched. The pressing plate 312 is squeezed onto the conduit 305. Since the conduit 305 is soft in texture, it is squeezed and deformed, and the flow rate of the water inside is slowed down, thereby reducing the water output of the atomizing nozzle 302, which is just suitable for crushing smaller coal blocks. Less dust is generated, and the sprayed water mist does not need to be so much;

[0046] The crushed coal blocks fall from the bottom of the frame 1 onto the filter plate 415. When the coal blocks are not crushed, the pull rod 409 can be screwed, and the pull rod 409 is driven by a thread to make the clamping plate 410 disengage from the fitting of the annular rail 401. At this time, the arc plate 402 can slide in the annular rail 401, and the arc plate 402 is moved to the bottom of the annular rail 401. Fig. 9 As shown, at this time, the baffle 405 will be below the filter plate 415, and then the second electric push rod 407 can be started to make the second electric push rod repeatedly move in a straight line, and the second electric push rod 407 will push the baffle 405, and the baffle 405 will shake and hit the bottom of the filter plate 415. Under the action of the torsion spring 406 and the push of the second electric push rod 407, the baffle 405 will shake repeatedly and hit the filter plate 415, so as to quickly shake off the water stains on the coal blocks on the filter plate 415.

[0047] Although 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 coal mine tunnel conveying and crushing system, comprising a frame (1) and a conveying platform (11), characterized in that: The side wall of the frame (1) is provided with an adjustment mechanism (2), the adjustment mechanism (2) comprising two fixed blocks (201), the two fixed blocks (201) are fixedly connected to the side wall of the frame (1), a cylinder (202) is slidably inserted on the surface of the fixed block (201), one end of the two cylinders (202) close to each other is fixedly connected to a limit ring frame (203), a first motor (204) is installed inside the limit ring frame (203), and the output of the first motor (204) The end of the frame (1) is fixedly connected to a crushing cylinder (205); one end of the crushing cylinder (205) close to the first motor (204) is rotatably connected to the limit ring frame (203); a second motor (206) is fixedly connected to the side wall of the frame (1); an output end of the second motor (206) is fixedly connected to a connecting block (207); both ends of the connecting block (207) are slidably connected to sliding rods (208); the ends of the two sliding rods (208) that are away from each other are fixedly connected to a convex plate (209); Two first electric push rods (210) are fixedly connected to the surface of the connecting block (207); the output end of the first electric push rod (210) is fixedly connected to a block (211); the two blocks (211) are respectively fixedly connected to the surfaces of the two convex plates (209); a dust reduction mechanism (3) is provided inside the crushing cylinder (205); the dust reduction mechanism (3) comprises two water pipes (301); the two water pipes (301) are respectively fixedly connected to the inside of the two crushing cylinders (205); the water pipes The arc surface of the crushing cylinder (205) is provided with a plurality of atomizing nozzles (302), the arc surface of the crushing cylinder (205) is provided with a plurality of circular holes (303), one end of the water pipe (301) close to the first motor (204) is rotatably connected to a clamping joint (304), one end of the clamping joint (304) away from the water pipe (301) is connected to a conduit (305), and the other end of the conduit (305) is connected to a water tank (307), and two water tanks (307) are respectively installed on both sides of the frame (1); The circular arc surface of the cylinder (202) is sleeved with a first spring (212), and the two ends of the first spring (212) are respectively fixedly connected to the fixed block (201) and the cylinder (202); the side wall of the frame body (1) is fixedly connected with two limit frames (308); the side wall of the limit frame (308) is provided with two rectangular holes (309); the inner walls of the two rectangular holes (309) are slidably connected with an inclined block (310); the surfaces of the two inclined blocks (310) are fixedly connected with a support rod (311); the ends of the two support rods (311) away from the inclined blocks (310) are fixedly connected with a pressure plate (312); the conduit (305) is fitted with the inner wall of the limit frame (308); the circular arc surface of the support rod (311) is sleeved with a second spring (313), and the two ends of the second spring (313) are respectively fixedly connected with the pressure plate (312) and the limit frame (308); When in use, the screened coal blocks are transported via the conveying platform (11). When encountering a large coal block, the first electric push rod (210) is started, and the first electric push rod (210) pushes the convex plate (209) to move. The convex plate (209) squeezes the two limit ring frames (203), and the two limit ring frames (203) move away from each other. At this time, the first spring (212) is in a stretched state, and the distance between the two crushing cylinders (205) is increased. The first motor (204) drives the crushing cylinders (205) to rotate, and the water pump in the water tank (307) can transport water into the guide tube (305). At this time, the coal blocks fall between the two crushing cylinders. The coal blocks (205) will be crushed between the two crushing cylinders (205). When the crushing cylinder (205) rotates, the water mist sprayed by the atomizing nozzle (302) will be sprayed out from the circular hole (303), thereby achieving the effect of dust reduction. When the coal blocks fall from the conveying platform (11), some coal blocks with a slightly smaller volume will directly fall between the two crushing cylinders (205). If some coal blocks with a larger volume rush out of the two crushing cylinders (205) due to excessive inertia, they will be blocked by the baffle (405). The baffle (405) will rotate when hit, but the rotation angle is not large and will be blocked by the second electric push rod (407). In this way, the coal blocks will accurately fall at the position between the two crushing cylinders (205); When a smaller coal block is encountered, the second motor (206) is started, and the second motor (206) drives the connecting block (207) to rotate. During the rotation process, the two convex plates (209) squeeze the inclined blocks (310) on both sides. The two convex plates (209) squeeze the inclined blocks (310) on both sides from the upper side and the lower side respectively. The inclined blocks (310) are squeezed and contracted, and the second spring (313) is stretched. The pressing plate (312) is squeezed onto the conduit (305). Since the conduit (305) is soft in texture, it is squeezed and deformed, and the flow rate of the water inside is slowed down, thereby reducing the water output of the atomizing nozzle (302), which is just suitable for crushing smaller coal blocks. Less dust is generated, and less water mist is sprayed.

2. A coal mine tunnel conveying and crushing system according to claim 1, characterized in that: The arc surface of the limiting ring frame (203) is provided with a limiting hole (306), and the conduit (305) passes through the limiting ring frame (203) by means of the limiting hole (306).

3. A coal mine tunnel conveying and crushing system according to claim 1, characterized in that: The side wall of the frame (1) is provided with an auxiliary mechanism (4), the auxiliary mechanism (4) comprising an annular rail (401), the annular rail (401) being fixedly connected to the side wall of the frame (1), the interior of the annular rail (401) being slidably connected to an arc plate (402), the inner arc surface of the arc plate (402) being fixedly connected to a fixing plate (403), the surface of the fixing plate (403) being rotatably connected to a long rod (404), the circular arc surface of the long rod (404) being fixedly connected to a baffle (405), the circular arc surface of the long rod (404) being sleeved with a torsion spring (406), and the two ends of the torsion spring (406) being fixedly connected to the fixing plate (403) and the long rod (404), respectively.

4. A coal mine tunnel conveying and crushing system according to claim 3, characterized in that: The arc surface of the arc plate (402) is fixedly connected to a rectangular block (408), the surface of the rectangular block (408) is threadedly connected to a pull rod (409), one end of the pull rod (409) is rotatably connected to a clamping plate (410), the arc surface of the pull rod (409) is sleeved with a third spring (411), and the two ends of the third spring (411) are respectively fixedly connected to the rectangular block (408) and the clamping plate (410).

5. A coal mine tunnel conveying and crushing system according to claim 3, characterized in that: A second electric push rod (407) is fixedly connected to the surface of the fixing plate (403), two pillars (412) are fixedly connected to the bottom of the frame body (1), a connecting frame (413) is fixedly connected to the bottom ends of the two pillars (412), a fixing rod (414) is fixedly connected to the surface of the connecting frame (413), a filter plate (415) is rotatably connected to the circular arc surface of the fixing rod (414), and a threaded ring (416) is threadedly connected to the circular arc surface of the fixing rod (414).

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