Automatic spraying and dust settling equipment for underground coal mine roadway

Abstract

The invention discloses a coal mine underground roadway automatic spraying and dust-settling device, and relates to the technical field of coal mine spraying and dust-settling, and the coal mine underground roadway automatic spraying and dust-settling device comprises a mobile vehicle which is provided with a water tank and a liquid pump; a reciprocating screw rod is arranged on the fixing frame, and a transmission rod is nested in the reciprocating screw rod in a sliding manner; the reciprocating lead screw is sleeved with the nut seat, the end, away from the fixing frame, of the nut seat is connected with a water conveying pipe, a rotating pipe is rotationally installed at the top end of the water conveying pipe, the top end of the rotating pipe is connected with a spraying assembly, and a gear transmission assembly is arranged between the rotating pipe and the top end of the transmission rod. The spraying assembly can move up and down in a reciprocating mode, the water mist spraying range of the spraying assembly is gradually increased from small to large and then gradually decreased from large to small in sequence, water mist can be sprayed to different positions of the surrounding environment, meanwhile, the spraying assembly can rotate in the moving process, the water mist diffusion range can be effectively widened, and therefore the dust falling range is widened; and the dust falling effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine spray dust reduction, and in particular to automatic spray dust reduction equipment for underground coal mine tunnels. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is very close to the surface, it is generally chosen to directly strip the surface soil layer to mine coal, which is an open-pit coal mine. When the coal seam is far from the surface, it is generally chosen to dig tunnels underground to mine coal, which is an underground coal mine. The vast majority of coal mines in my country are underground coal mines. Coal mines are reasonable spaces excavated by humans when digging geological layers rich in coal, usually including tunnels, shafts, and mining faces.

[0003] During coal mining, due to mechanical, stress or mining damage, the coal body is broken into granular and powdery forms. Under the influence of wind flow, coal dust of varying sizes will be formed in the tunnel. Due to the different sizes of dust particles, dust can be divided into total dust and respirable dust. Because dust is very harmful to the human body and causes irreversible damage to human pneumoconiosis and other diseases, it is called one of the "five harms" of coal mines. In order to protect the physical and mental health of on-site workers while ensuring safe coal mining, spray dust reduction facilities are generally used.

[0004] At present, the nozzle height of the spray dust suppression equipment used in most existing coal mine underground tunnels is fixed during spraying, resulting in a small spray dust suppression range when the nozzle is set low. If the nozzle is set too high, although the spraying range becomes wider, it is impossible to suppress dust in the space around the spray dust suppression device, and its spraying range is limited. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic spray dust reduction device for underground coal mine tunnels to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an automatic spray dust reduction device for underground coal mine tunnels, comprising:

[0007] A mobile vehicle, wherein the mobile vehicle is provided with a water tank and a liquid pump, the water suction end of the liquid pump is connected to the water tank, and the water discharge end of the liquid pump is connected to a telescopic hose;

[0008] A fixed seat, the bottom end of which is connected to the moving vehicle, a fixed frame is fixed on the upper side of the fixed seat, a reciprocating screw rod is arranged on the fixed frame, a driving motor is installed in the fixed seat, the output end of the driving motor is fixedly connected to the bottom end of the reciprocating screw rod, and a transmission rod is slidably nested in the reciprocating screw rod;

[0009] A nut seat, the nut seat is sleeved on the reciprocating screw rod, the end of the nut seat away from the fixed frame is connected to a water pipe, the bottom end of the water pipe is connected to the top of the telescopic hose, the upper end of the water pipe is fixedly sleeved with a connecting plate, the connecting plate is sleeved on the transmission rod through a bearing, a rotating tube is rotatably installed on the top of the water pipe, the top of the rotating tube is connected to a spray assembly, a wind blowing assembly is provided between the spray assembly and the connecting plate, and a gear transmission assembly is provided between the rotating tube and the top of the transmission rod.

[0010] Preferably, a rectangular slideway is provided inside the reciprocating screw rod, the upper end of the rectangular slideway extends to the top end of the reciprocating screw rod, a rectangular slider is fixed to the bottom end of the transmission rod, and the rectangular slider is slidably nested in the rectangular slideway;

[0011] The gear transmission assembly includes a driving gear and a driven gear, wherein the driving gear is fixed to the top end of the transmission rod, and the driven gear is fixedly sleeved on the rotating tube, the driving gear is meshed and connected with the driven gear, and the size of the driving gear is smaller than that of the driven gear;

[0012] When the reciprocating screw rotates, it drives the nut seat to move back and forth on the reciprocating screw, and the nut seat reciprocates up and down, driving the water pipe to move up and down. The up and down reciprocating movement of the water pipe drives the rotating tube at its top to move up and down, thereby driving the spray assembly at the top of the rotating tube to reciprocate up and down, and its water mist spraying range gradually increases from small to large, and then gradually decreases from large to small, repeatedly, and can spray water mist to different positions in the surrounding environment. When the water pipe reciprocates up and down, it drives the transmission rod to move up and down synchronously through the connecting plate, so that the driving gear at the top of the transmission rod is always meshed with the driven gear on the rotating tube. At the same time, the rotation of the reciprocating screw can drive the rectangular slider inside it to rotate, and the rotation of the rectangular slider can drive the transmission rod to rotate, so that the transmission rod reciprocates up and down and rotates at the same time, the rotation of the transmission rod drives the driving gear to rotate, the rotation of the driving gear meshes with the driven gear on the rotating tube, thereby driving the rotating tube to rotate, and the rotation of the rotating tube drives the spray assembly thereon to rotate, which can effectively increase the diffusion range of water mist.

[0013] Preferably, the spray assembly includes a hollow water tray and an annular water pipe, the hollow water tray is fixed at the top of the rotating tube, the inner cavity of the hollow water tray is connected with the inner cavity of the rotating tube, the annular water pipe is sleeved on the outer side of the hollow water tray, a plurality of connecting pipes are connected between the annular water pipe and the hollow water tray, and a plurality of atomizing nozzles are fixed on the outer side of the annular water pipe;

[0014] Water enters the hollow water tray through a rotating pipe, then enters the annular water pipe through multiple connecting pipes, and is then sprayed out through multiple atomizing nozzles on the outside of the annular water pipe to form water mist, thereby achieving spray dust reduction in underground coal mine tunnels.

[0015] Preferably, the wind blowing assembly comprises a rotating ring and a fixed ring, the rotating ring is located above the fixed ring, a plurality of connecting rods are fixed between the upper side of the rotating ring and the annular water pipe, an end face tooth ring is fixed to the lower side of the rotating ring, the fixed ring is sleeved on the outer side of the connecting plate, a supporting plate is fixed between the inner wall of the fixed ring and the connecting plate, a plurality of supporting seats are fixed to the upper side of the fixed ring, a transmission shaft is rotatably embedded on the supporting seat, a fan blade is fixed to the outer end of the transmission shaft, a transmission gear is fixed to the inner end of the transmission shaft, and the transmission gear is meshed and connected with the end face tooth ring;

[0016] When the spray assembly rotates, the annular water pipe inside it rotates, driving the rotating ring to rotate through the connecting rod. The rotation of the rotating ring drives the end face gear ring at its bottom to rotate. The rotation of the end face gear ring engages with multiple transmission gears on the fixed ring, thereby driving the multiple transmission gears to rotate. The rotation of the transmission gears drives the fan blades to rotate through the transmission shaft, generating wind force, blowing the water mist sprayed from the atomizing nozzle on the annular water pipe, making the diffusion direction of the water mist more extensive.

[0017] Preferably, a limiting sleeve is fixed at the top end of the reciprocating screw rod, the upper end of the limiting sleeve rotates to penetrate the top wall of the fixing frame, a through hole penetrating the upper and lower ends of the limiting sleeve is opened in the limiting sleeve, the diameter of the through hole is smaller than the top view cross-sectional width of the rectangular slideway, and the upper end of the transmission rod penetrates the through hole on the limiting sleeve;

[0018] The limiting sleeve can improve the stability of the reciprocating screw during rotation, and the limiting sleeve can improve the stability of the transmission rod during rotation and movement. The limiting sleeve can limit the rectangular slider to prevent the rectangular slider from detaching from the rectangular slideway in the reciprocating screw.

[0019] Preferably, a rotating joint is connected between the water pipe and the rotating tube, so that the water in the water pipe can be input into the rotating tube through the rotating joint, and the rotating tube can rotate relative to the water pipe. The upper end of the water pipe slides through the top wall of the fixed frame to limit the water pipe, so that the water pipe can move up and down stably.

[0020] Preferably, a slide groove is provided on the vertical wall of the fixing frame, a limiting slider is fixed on the side of the nut seat close to the slide groove, the limiting slider is slidably nested in the slide groove, a connecting seat is fixed on the side of the nut seat away from the fixing frame, and the lower end of the water pipe is fixedly passed through the connecting seat;

[0021] The nut seat is limited to prevent the nut seat from deflecting, so that the nut seat can move up and down stably.

[0022] Preferably, the water pipe, rotating pipe, annular water pipe and connecting pipe are all made of stainless steel, and the hollow water tray is made of stainless steel, so that the water pipe, rotating pipe, hollow water tray, annular water pipe and connecting pipe have high structural strength, are not easy to damage, and have a long service life.

[0023] Preferably, the connecting plate, rotating ring, fixed ring, connecting rod, end face gear ring and support plate are all made of stainless steel, so that the connecting plate, rotating ring, fixed ring, connecting rod, end face gear ring and support plate have high structural strength, are not easy to damage, and have a long service life.

[0024] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0025] 1. By providing a reciprocating screw, a transmission rod, a nut seat, a water pipe, a connecting plate, a rotating tube, a spray assembly and a gear transmission assembly, when the reciprocating screw rotates, it can drive the water pipe to move back and forth up and down, and the up and down reciprocating movement of the water pipe can drive the transmission rod and the rotating tube to move back and forth synchronously, thereby driving the spray assembly on the top of the rotating tube to move back and forth up and down, and its water mist spraying range gradually increases from small to large, and then gradually decreases from large to small, and repeats in sequence, so that the water mist can be sprayed to different positions of the surrounding environment. At the same time, when the reciprocating screw rotates, it can drive the transmission rod to rotate, so that the transmission rod reciprocates up and down and rotates at the same time. The rotation of the transmission rod drives the spray assembly to rotate through the gear transmission assembly, which can effectively increase the diffusion range of the water mist, thereby increasing the dust reduction range and improving the dust reduction effect;

[0026] 2. By providing a wind blowing assembly between the spray assembly and the connecting plate, when the spray assembly rotates, the annular water pipe inside it rotates, and drives the rotating ring to rotate through the connecting rod in the wind blowing assembly. The rotating ring drives the end face gear ring at its bottom to rotate. The end face gear ring rotates and engages with multiple transmission gears on the fixed ring, thereby driving multiple transmission gears to rotate. The rotation of the transmission gears drives the fan blades to rotate through the transmission shaft, generating wind force, blowing the water mist sprayed from the atomizing nozzle on the annular water pipe, making the diffusion direction of the water mist more extensive, thereby improving the dust reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0030] Figure 3 For the present invention Figure 2 Another angle diagram of the;

[0031] Figure 4 For the present invention Figure 2 Schematic diagram of the local structure;

[0032] Figure 5 For the present invention Figure 4 A partial three-dimensional cross-sectional view of

[0033] Figure 6 It is a three-dimensional cross-sectional view of the connection between the reciprocating screw rod and the transmission rod of the present invention;

[0034] Figure 7 It is a schematic diagram of the connection between the spray assembly and the rotating ring of the present invention;

[0035] Figure 8 It is a schematic diagram of the connection between the connecting plate and the fan blade of the present invention;

[0036] Fig. 9 For the present invention Figure 8 Schematic diagram of the local structure.

[0037] Description of reference numerals:

[0038] 1. Mobile vehicle; 2. Water tank; 3. Liquid pump; 4. Telescopic hose; 5. Fixed seat; 6. Fixed frame; 7. Reciprocating screw; 8. Driving motor; 9. Transmission rod; 10. Nut seat; 11. Water pipe; 12. Connecting plate; 13. Rotating pipe; 14. Rectangular slideway; 15. Rectangular slider; 16. Driving gear; 17. Driven gear; 18. Hollow water tray; 19. Annular water pipe; 20. Connecting pipe; 21. Atomizing nozzle; 22. Rotating ring; 23. Fixed ring; 24. Connecting rod; 25. End gear ring; 26. Support plate; 27. Support seat; 28. Transmission shaft; 29. ​​Fan blade; 30. Transmission gear; 31. Limit sleeve; 32. Rotating joint; 33. Slide; 34. Limit slider; 35. Connecting seat. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] The present invention provides Figures 1 to 6 The automatic spray dust suppression equipment for underground coal mine tunnels shown in the figure comprises:

[0041] A mobile vehicle 1 is provided with a water tank 2 and a liquid pump 3, a water suction end of the liquid pump 3 is connected to the water tank 2, and a discharge end of the liquid pump 3 is connected to a telescopic hose 4;

[0042] A fixed seat 5, the bottom end of which is connected to the moving vehicle 1, a fixed frame 6 is fixed on the upper side of the fixed seat 5, a reciprocating screw rod 7 is arranged on the fixed frame 6, a driving motor 8 is installed in the fixed seat 5, an output end of the driving motor 8 is fixedly connected to the bottom end of the reciprocating screw rod 7, and a transmission rod 9 is slidably nested in the reciprocating screw rod 7;

[0043] A nut seat 10 is sleeved on the reciprocating screw rod 7. One end of the nut seat 10 away from the fixed frame 6 is connected to a water pipe 11. The bottom end of the water pipe 11 is connected to the top end of the telescopic hose 4. The upper end of the water pipe 11 is fixedly sleeved with a connecting plate 12. The connecting plate 12 is sleeved on the transmission rod 9 through a bearing. A rotating tube 13 is rotatably installed on the top end of the water pipe 11. The top end of the rotating tube 13 is connected to a spray assembly. A wind blowing assembly is provided between the spray assembly and the connecting plate 12. A gear transmission assembly is provided between the rotating tube 13 and the top end of the transmission rod 9.

[0044] A rectangular slideway 14 is provided inside the reciprocating screw rod 7, the upper end of the rectangular slideway 14 extends to the top of the reciprocating screw rod 7, a rectangular slider 15 is fixed to the bottom end of the transmission rod 9, and the rectangular slider 15 is slidably nested in the rectangular slideway 14;

[0045] The gear transmission assembly includes a driving gear 16 and a driven gear 17. The driving gear 16 is fixed to the top of the transmission rod 9, and the driven gear 17 is fixedly sleeved on the rotating tube 13. The driving gear 16 is meshed and connected with the driven gear 17. The size of the driving gear 16 is smaller than that of the driven gear 17.

[0046] When the reciprocating screw 7 rotates, the nut seat 10 is driven to reciprocate on the reciprocating screw 7, and the nut seat 10 reciprocates up and down, driving the water pipe 11 to reciprocate up and down. The reciprocating up and down movement of the water pipe 11 drives the rotating tube 13 on its top to reciprocate up and down, thereby driving the spray assembly on the top of the rotating tube 13 to reciprocate up and down, and its water mist spraying range gradually increases from small to large, and then gradually decreases from large to small, and repeats in sequence, so that the water mist can be sprayed to different positions of the surrounding environment. When the water pipe 11 reciprocates up and down, it drives the transmission rod 9 to move up and down synchronously through the connecting plate 12, so that The driving gear 16 at the top of the transmission rod 9 is always meshed with the driven gear 17 on the rotating tube 13. At the same time, the rotation of the reciprocating screw 7 can drive the rectangular slider 15 therein to rotate. When the rectangular slider 15 rotates, it can drive the transmission rod 9 to rotate, so that the transmission rod 9 reciprocates up and down and rotates at the same time. The rotation of the transmission rod 9 drives the driving gear 16 to rotate. The driving gear 16 rotates and meshes with the driven gear 17 on the rotating tube 13, thereby driving the rotating tube 13 to rotate. The rotation of the rotating tube 13 drives the spray assembly thereon to rotate, which can effectively increase the diffusion range of the water mist.

[0047] The spray assembly includes a hollow water tray 18 and an annular water pipe 19. The hollow water tray 18 is fixed to the top of the rotating tube 13. The inner cavity of the hollow water tray 18 is connected to the inner cavity of the rotating tube 13. The annular water pipe 19 is sleeved on the outer side of the hollow water tray 18. A plurality of connecting pipes 20 are connected between the annular water pipe 19 and the hollow water tray 18. A plurality of atomizing nozzles 21 are fixed on the outer side of the annular water pipe 19.

[0048] Water enters the hollow water tray 18 through the rotating pipe 13, then enters the annular water pipe 19 through multiple connecting pipes 20, and then is sprayed out through multiple atomizing nozzles 21 outside the annular water pipe 19 to form water mist, thereby achieving spray dust reduction in underground coal mine tunnels.

[0049] A limiting sleeve 31 is fixed to the top of the reciprocating screw rod 7, and the upper end of the limiting sleeve 31 rotates to penetrate the top wall of the fixing frame 6. A through hole penetrating the upper and lower ends of the limiting sleeve 31 is opened in the limiting sleeve 31, and the diameter of the through hole is smaller than the top cross-sectional width of the rectangular slide 14. The upper end of the transmission rod 9 penetrates the through hole on the limiting sleeve 31;

[0050] The limiting sleeve 31 can improve the stability of the reciprocating screw 7 during rotation. At the same time, the limiting sleeve 31 can improve the stability of the transmission rod 9 during rotation and movement. The limiting sleeve 31 can limit the rectangular slider 15 to prevent the rectangular slider 15 from detaching from the rectangular slide 14 in the reciprocating screw 7.

[0051] A rotating joint 32 is connected between the water pipe 11 and the rotating tube 13, so that the water in the water pipe 11 can be input into the rotating tube 13 through the rotating joint 32, and the rotating tube 13 can rotate relative to the water pipe 11. The upper end of the water pipe 11 slides through the top wall of the fixing frame 6 to limit the water pipe 11, so that the water pipe 11 can move up and down stably.

[0052] A slide groove 33 is provided on the vertical wall of the fixing frame 6, a limit slider 34 is fixed on the side of the nut seat 10 close to the slide groove 33, the limit slider 34 is slidably nested in the slide groove 33, a connecting seat 35 is fixed on the side of the nut seat 10 away from the fixing frame 6, and the lower end of the water pipe 11 is fixedly passed through the connecting seat 35;

[0053] The nut seat 10 is limited to prevent the nut seat 10 from deflecting, so that the nut seat 10 moves up and down stably.

[0054] In the present invention, the liquid pump 3 extracts clean water from the water tank 2 and inputs it into the water pipe 11 through the telescopic hose 4, then inputs it into the rotating pipe 13 through the rotating joint 32, and then inputs it into the hollow water tray 18, and then enters the annular water pipe 19 through multiple connecting pipes 20, and finally sprays out through multiple atomizing nozzles 21 outside the annular water pipe 19 to form water mist, thereby realizing spray dust reduction in the underground tunnels of the coal mine. At the same time, the driving motor 8 works to drive the reciprocating screw 7 to rotate, and the rotation of the reciprocating screw 7 drives the nut seat 10 to move back and forth on the reciprocating screw 7. The nut seat 10 reciprocates up and down to drive the water pipe 11 to move up and down, and the up and down reciprocating movement of the water pipe 11 drives the rotating pipe 13 at its top to move up and down, thereby driving the spray assembly at the top of the rotating pipe 13 to reciprocate up and down, and its water mist spraying range is continuously from small to large. It becomes larger, and then gradually becomes smaller, and is repeated in sequence, so that the water mist can be sprayed to different positions of the surrounding environment. When the water delivery pipe 11 moves up and down reciprocatingly, the connecting plate 12 drives the transmission rod 9 to move up and down synchronously, so that the driving gear 16 at the top of the transmission rod 9 is always engaged with the driven gear 17 on the rotating tube 13. At the same time, the rotation of the reciprocating screw 7 can drive the rectangular slider 15 therein to rotate. When the rectangular slider 15 rotates, it can drive the transmission rod 9 to rotate, so that the transmission rod 9 reciprocates up and down and rotates at the same time. The rotation of the transmission rod 9 drives the driving gear 16 to rotate, and the driving gear 16 rotates and engages with the driven gear 17 on the rotating tube 13 to drive the rotating tube 13 to rotate. The rotation of the rotating tube 13 drives the spray assembly thereon to rotate, which can effectively increase the diffusion range of the water mist, thereby increasing the dust reduction range and improving the dust reduction effect.

[0055] like Figure 5 and Figures 7 to 9 As shown, the wind blowing assembly includes a rotating ring 22 and a fixed ring 23. The rotating ring 22 is located above the fixed ring 23. A plurality of connecting rods 24 are fixed between the upper side of the rotating ring 22 and the annular water pipe 19. An end face gear ring 25 is fixed to the lower side of the rotating ring 22. The fixed ring 23 is sleeved on the outer side of the connecting plate 12. A support plate 26 is fixed between the inner wall of the fixed ring 23 and the connecting plate 12. A plurality of support seats 27 are fixed to the upper side of the fixed ring 23. A transmission shaft 28 is rotatably embedded on the support seat 27. A fan blade 29 is fixed to the outer end of the transmission shaft 28. A transmission gear 30 is fixed to the inner end of the transmission shaft 28. The transmission gear 30 is meshed and connected with the end face gear ring 25.

[0056] In the present invention, when the spray assembly rotates, the annular water pipe 19 therein rotates and drives the rotating ring 22 to rotate through the connecting rod 24. The rotating ring 22 rotates and drives the end face gear ring 25 at its bottom to rotate. The end face gear ring 25 rotates and engages with multiple transmission gears 30 on the fixed ring 23, thereby driving the multiple transmission gears 30 to rotate. The transmission gears 30 rotate and drive the fan blades 29 to rotate through the transmission shaft 28, generating wind force, blowing the water mist sprayed from the atomizing nozzle 21 on the annular water pipe 19, so that the diffusion direction of the water mist is wider, thereby increasing the dust reduction range and improving the dust reduction effect.

[0057] like Figure 5 , Figure 7 and Figure 8 As shown, the water pipe 11, the rotating pipe 13, the annular water pipe 19 and the connecting pipe 20 are all made of stainless steel, and the hollow water tray 18 is made of stainless steel, so that the water pipe 11, the rotating pipe 13, the hollow water tray 18, the annular water pipe 19 and the connecting pipe 20 have high structural strength, are not easy to be damaged, and have a long service life.

[0058] The connecting plate 12, rotating ring 22, fixed ring 23, connecting rod 24, end face tooth ring 25 and supporting plate 26 are all made of stainless steel, so that the connecting plate 12, rotating ring 22, fixed ring 23, connecting rod 24, end face tooth ring 25 and supporting plate 26 have high structural strength, are not easy to damage, and have a long service life.

[0059] In the present invention, the water pipe 11, the rotating pipe 13, the hollow water tray 18, the annular water pipe 19 and the connecting pipe 20 are all made of stainless steel, so that the structure has high strength, is not easy to be damaged, and has a long service life. At the same time, the connecting plate 12, the rotating ring 22, the fixed ring 23, the connecting rod 24, the end face gear ring 25 and the support plate 26 are all made of stainless steel, so that the structure has high strength, is not easy to be damaged, and has a long service life, which effectively guarantees the service life of the structure of the automatic spray dust reduction equipment in the underground tunnel of the coal mine.

[0060] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic spray dust suppression device for underground coal mine tunnels, characterized in that: include: A mobile vehicle (1), wherein the mobile vehicle (1) is provided with a water tank (2) and a liquid pump (3), wherein the water suction end of the liquid pump (3) is connected to the water tank (2), and the water discharge end of the liquid pump (3) is connected to a telescopic hose (4); A fixed seat (5), the bottom end of the fixed seat (5) is connected to the moving vehicle (1), a fixed frame (6) is fixed on the upper side of the fixed seat (5), a reciprocating screw rod (7) is provided on the fixed frame (6), a driving motor (8) is installed in the fixed seat (5), the output end of the driving motor (8) is fixedly connected to the bottom end of the reciprocating screw rod (7), and a transmission rod (9) is slidably nested in the reciprocating screw rod (7); A nut seat (10) is sleeved on a reciprocating screw rod (7); one end of the nut seat (10) away from the fixed frame (6) is connected to a water pipe (11); the bottom end of the water pipe (11) is connected to the top end of the telescopic hose (4); the upper end of the water pipe (11) is fixedly sleeved with a connecting plate (12); the connecting plate (12) is sleeved on a transmission rod (9) through a bearing; a rotating tube (13) is rotatably mounted on the top end of the water pipe (11); the top end of the rotating tube (13) is connected to a spray assembly; a wind blowing assembly is provided between the spray assembly and the connecting plate (12); and a gear transmission assembly is provided between the rotating tube (13) and the top end of the transmission rod (9).

2. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 1 is characterized by: A rectangular slideway (14) is provided inside the reciprocating screw rod (7), the upper end of the rectangular slideway (14) extends to the top end of the reciprocating screw rod (7), a rectangular slider (15) is fixed to the bottom end of the transmission rod (9), and the rectangular slider (15) is slidably nested in the rectangular slideway (14); The gear transmission assembly comprises a driving gear (16) and a driven gear (17), wherein the driving gear (16) is fixed on the top end of the transmission rod (9), and the driven gear (17) is fixedly sleeved on the rotating tube (13), and the driving gear (16) is meshedly connected with the driven gear (17), and the size of the driving gear (16) is smaller than that of the driven gear (17).

3. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 1 is characterized by: The spray assembly comprises a hollow water tray (18) and an annular water pipe (19); the hollow water tray (18) is fixed at the top end of a rotating tube (13); the inner cavity of the hollow water tray (18) is connected to the inner cavity of the rotating tube (13); the annular water pipe (19) is sleeved on the outer side of the hollow water tray (18); a plurality of connecting pipes (20) are connected between the annular water pipe (19) and the hollow water tray (18); and a plurality of atomizing nozzles (21) are fixed on the outer side of the annular water pipe (19).

4. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 3 is characterized by: The wind blowing component comprises a rotating ring (22) and a fixed ring (23), wherein the rotating ring (22) is located above the fixed ring (23), a plurality of connecting rods (24) are fixed between the upper side of the rotating ring (22) and the annular water pipe (19), an end face toothed ring (25) is fixed to the lower side of the rotating ring (22), the fixed ring (23) is sleeved on the outer side of the connecting plate (12), a supporting plate (26) is fixed between the inner wall of the fixed ring (23) and the connecting plate (12), a plurality of supporting seats (27) are fixed to the upper side of the fixed ring (23), a transmission shaft (28) is rotatably embedded on the supporting seat (27), a fan blade (29) is fixed to the outer end of the transmission shaft (28), a transmission gear (30) is fixed to the inner end of the transmission shaft (28), and the transmission gear (30) is meshedly connected with the end face toothed ring (25).

5. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 1, characterized in that: A limiting sleeve (31) is fixed at the top end of the reciprocating screw rod (7), and the upper end of the limiting sleeve (31) rotates to penetrate the top wall of the fixing frame (6). A through hole is opened in the limiting sleeve (31) and penetrates the upper and lower ends of the limiting sleeve (31). The diameter of the through hole is smaller than the top cross-sectional width of the rectangular slideway (14), and the upper end of the transmission rod (9) penetrates the through hole on the limiting sleeve (31).

6. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 1, characterized in that: A rotary joint (32) is connected between the water delivery pipe (11) and the rotary pipe (13), and the upper end of the water delivery pipe (11) slides through the top wall of the fixing frame (6).

7. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 1, characterized in that: A slide groove (33) is provided on the vertical wall of the fixing frame (6); a limiting slider (34) is fixed on the side of the nut seat (10) close to the slide groove (33); the limiting slider (34) is slidably nested in the slide groove (33); a connecting seat (35) is fixed on the side of the nut seat (10) away from the fixing frame (6); and the lower end of the water pipe (11) is fixedly passed through the connecting seat (35).

8. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 3 is characterized by: The water delivery pipe (11), the rotating pipe (13), the annular water pipe (19) and the connecting pipe (20) are all made of stainless steel, and the hollow water tray (18) is made of stainless steel.

9. The automatic spray dust suppression equipment for underground coal mine tunnels according to claim 4, characterized in that: The connecting plate (12), the rotating ring (22), the fixing ring (23), the connecting rod (24), the end face gear ring (25) and the supporting plate (26) are all made of stainless steel.

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