A rock drilling device for underground mining

Abstract

The present invention discloses an underground mining rock and soil drilling device, which belongs to the technical field of rock and soil drilling. The lower support frame is connected to the upper support frame by sliding up and down, the front part of the lower support frame is connected to the horizontal lower support roller by rotating in the left and right direction, the front part of the upper support frame is connected to the horizontal upper support roller by rotating in the left and right direction, and the upper support roller and the lower support roller are respectively installed with a plurality of support arms along the spiral tracks with opposite rotation directions. The present invention can make the upper support frame and the lower support frame move up and down by controlling the lifting mechanism to move, so as to change the spacing between the upper support roller and the lower support roller, during which the coverage range of the support arm where the upper support roller is located when rotating is kept partially overlapped with the coverage range of the support arm where the lower support roller is located when rotating when viewed from the right angle, so that the excavation thickness can be conveniently adjusted, and the mining volume per unit time also changes accordingly, so that when the excavation thickness increases, the work efficiency also increases accordingly, meeting the mining needs.

Description

Technical Field

[0001] The invention relates to the technical field of rock and soil drilling, and in particular to an underground mining rock and soil drilling device. Background Art

[0002] In the process of underground mining, the excavation thickness often changes according to the needs of mining. For example, when the thickness of the coal seam is small, the mining thickness is appropriately reduced, and when the thickness of the coal seam is large, the mining thickness is appropriately increased. However, the existing excavation equipment is not convenient to adjust the mining thickness during mining. When the mining thickness is large, the excavation part is usually required to move up and down to increase the working area covered by the excavation part to achieve mining. However, the working area covered by the excavation part at the same time does not increase, and the mining volume per unit time does not increase. Therefore, when mining thick rock and soil, its working efficiency is low, which highlights the shortcomings of the existing technology. Summary of the invention

[0003] The object of the present invention is to provide an underground mining rock drilling device to solve the technical problems of inconvenient mining thickness adjustment and low working efficiency caused thereby.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A rock drilling device for underground mining, comprising a lower support frame, an upper support frame, a mounting seat, a lower support roller, an upper support roller, a support arm, a crushing nail, a rotating drive mechanism, a lifting mechanism, and a conveying mechanism. The lower support frame is slidably connected to the upper support frame up and down, and a mounting seat is fixed to the rear end of the lower support frame. The front part of the lower support frame is rotatably connected to a horizontal lower support roller along the left and right directions, and the front part of the upper support frame is rotatably connected to a horizontal upper support roller along the left and right directions. The upper support roller and the lower support roller are respectively installed with a plurality of support arms along spiral tracks with opposite rotation directions, and each of the support arms is respectively fixed with a plurality of The crushing nails of the support arm where the upper support roller is located are arranged in a counterclockwise inclined direction when viewed from the right side, and the crushing nails of the support arm where the lower support roller is located are arranged in a clockwise inclined direction when viewed from the right side. The support arms installed on the upper support roller and the support arms installed on the lower support roller are arranged alternately. The lower support frame and the lower support roller are jointly installed with a rotating drive mechanism, and the upper support frame and the upper support roller are also jointly installed with a rotating drive mechanism. The lower support frame and the upper support frame are jointly installed with a lifting mechanism, and the lower support frame is installed with a conveying mechanism.

[0006] On the basis of the above technical solution, the upper support roller and the lower support roller are respectively provided with a plurality of rectangular holes and circular holes, the rectangular holes and the circular holes penetrate each other and are respectively perpendicular to the axis of the upper support roller or the lower support roller, the support arms are inserted into the rectangular holes, and each of the support arms is respectively threadedly connected with a hexagonal fastening bolt, and the fastening bolt is inserted into the circular hole to fasten the support arm.

[0007] Based on the above technical solution, a plurality of washers of equal thickness are inserted into the rectangular socket, each of the washers is respectively inserted with a gap with the fastening bolt, and each of the washers is stacked on top of each other and is located at the bottom of the rectangular socket and squeezed by the support arm.

[0008] On the basis of the above technical scheme, the upper support roller and the lower support roller are respectively coaxially opened with a spiral main water supply channel, and the two main water supply channels are respectively connected with the rectangular jacks of the upper support roller and the lower support roller, the support arm is hollow inside, and a plurality of water spray holes are penetrated at the position of the support arm near the crushing nail, and a water inlet hole is penetrated at the position of the support arm near the fastening bolt, and the water inlet hole and the water spray hole are respectively connected with the inner cavity of the inner support arm, and the water inlet hole can be connected with the main water supply channel, and the left part of the upper support roller and the left part of the lower support roller are respectively provided with an auxiliary water supply channel, and the left end of the upper support roller and the left end of the lower support roller are respectively fixed with a water inlet pipe, and the upper support roller and the lower support roller are respectively radially fixed with a left connecting pipe, and the water inlet pipe and the left connecting pipe are respectively connected with the auxiliary water supply channel, and the left ends of the two main water supply channels are respectively fixed with a right connecting pipe, and the two left connecting pipes are respectively connected with the two right connecting pipes through an external pipe, and the two water inlet pipes are respectively connected to the external water supply system through a rotating joint and an external pipe.

[0009] On the basis of the above technical scheme, the conveying mechanism includes a transfer roller, an upper roller, a lower roller, a conveyor belt, a reduction motor, a guide scraper, a guide plate, a guide ramp plate, and the upper left part, the lower left part, the upper right part and the lower right part of the lower support frame are respectively connected to horizontal transfer rollers that rotate along the front and rear directions. The upper part of the lower support frame is connected to multiple upper rollers along the front and rear directions in sequence from left to right, and the lower part of the lower support frame is connected to multiple lower rollers along the front and rear directions in sequence from left to right. Each of the transfer rollers is connected to a conveyor belt that rotates together. The conveyor belt is made of water-permeable fabric. The conveyor belt is in contact with the upper outer circumference of the upper and lower rollers. A horizontal reduction motor is fixed to the front end of the frame, and the rotating shaft of the reduction motor is fixed coaxially with any transfer roller and is electrically connected to an external power supply and circuit control system. A guide scraper is fixed to the lower left or lower right part of the lower support frame, and the middle part of the guide scraper is in a convex horizontal ridge shape, and the middle part of the guide scraper is in contact with the inner wall of the bottom of the conveyor belt. A plurality of guide plates inclined forward and upward are fixed to the front end of the upper part of the lower support frame, and each of the guide plates is arranged from left to right, and each of the guide plates is staggered with the support arm of the lower support roller, and a guide ramp plate inclined forward and upward is fixed to the front end of the bottom of the lower support frame, and the guide ramp plate tends to the lower support roller.

[0010] On the basis of the above technical solution, a plurality of guide slides are fixed along the spiral direction on the outer circumference of the lower support roller, and the spiral trajectory of each guide slide is arranged in the same direction as the spiral trajectory of the support arm where the lower support roller is located. Each guide slide corresponds to each support arm where the lower support roller is located in the circumferential direction, and each support arm is located at an obtuse angle in the counterclockwise direction of the corresponding guide slide when viewed from the right side.

[0011] On the basis of the above technical solution, a protective cover extending forward is fixed to the rear part of the upper support frame, and horizontal rear water pipe and front water pipe are fixed to the upper support frame along the left and right directions. A plurality of leakage holes are passed through the bottom of the rear water pipe from left to right in sequence, and a plurality of atomizing nozzles are fixed to the front part of the front water pipe from left to right in sequence. The front water pipe and the rear water pipe are respectively connected to the external water supply system, and the leakage holes are located directly above the conveyor belt.

[0012] On the basis of the above technical scheme, a horizontal inner shell is fixed along the front-to-back direction on the inner wall of the guide scraper, and a No. 1 exhaust port is opened at the lower part of the inner shell, which is away from the adjacent transfer roller. The inner shell is also fixedly connected with a No. 1 air inlet pipe, and the No. 1 air inlet pipe is connected with the No. 1 exhaust port, and the No. 1 air inlet pipe is connected with the external compressed air supply system through a pipeline, and the No. 1 exhaust port corresponds to the bottom end of the inner wall of the conveyor belt, and an outer shell is fixed at the opposite end of the lower support frame end corresponding to the guide scraper, and a No. 2 exhaust port is opened at the part of the outer shell close to the lower support frame, and the outer shell is also fixedly connected with a No. 2 air inlet pipe, and the No. 2 exhaust port is connected with the No. 2 air inlet pipe, and the No. 2 exhaust port corresponds to the outer wall of the conveyor belt, and the No. 2 air inlet pipe is connected with the external compressed air supply system through a pipeline.

[0013] On the basis of the above technical scheme, the rotating drive mechanism includes a speed regulating motor and a gear reducer, the gear reducers are respectively fixed at the right end of the upper support frame and the right end of the lower support frame, the two gear reducers are respectively fixed with speed regulating motors, the rotating shaft of the speed regulating motor is coaxially fixed with the input shaft of the gear reducer, the output shafts of the two gear reducers are respectively connected to the upper support roller and the lower support roller through gear meshing for transmission, the speed regulating motor is electrically connected to the external control circuit and power supply, the lifting mechanism is a plurality of vertical hydraulic cylinders, the cylinder body of each hydraulic cylinder is respectively fixed to the top end of the lower support frame, the top end of the piston rod of each hydraulic cylinder is respectively fixed to the bottom end of the upper support frame, and each hydraulic cylinder is respectively connected to the external hydraulic system.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention can control the lifting mechanism to move the upper support frame and the lower support frame up and down, thereby changing the distance between the upper support roller and the lower support roller, while keeping the coverage range of the support arm where the upper support roller is located and the coverage range of the support arm where the lower support roller is located when rotating partially overlapping when viewed from the right angle, so that the excavation thickness can be conveniently adjusted, and the mining volume per unit time also changes accordingly, so that when the excavation thickness increases, the work efficiency also increases accordingly, thereby meeting the mining needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the axial side structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the right cross-section structure of the support arm where the lower support roller of the present invention is located.

[0017] Figure 3 It is a schematic diagram of the left structure of the upper support roller of the present invention.

[0018] Figure 4 It is a schematic diagram of the front cross-section structure of the upper support roller of the present invention.

[0019] Figure 5 It is a schematic diagram of the cooperation between the conveyor belt and the transfer roller of the present invention.

[0020] Figure 6 It is a rear view schematic diagram of the upper support frame and the lower support frame of the present invention when they are matched.

[0021] Figure 7 It is a schematic diagram of the front cross-section structure of the guide scraper and the inner shell of the present invention.

[0022] Figure 8 It is a front sectional structural schematic diagram of the outer shell of the present invention.

[0023] In the figure: 1, lower support frame, 2, upper support frame, 3, mounting seat, 4, lower support roller, 5, upper support roller, 6, support arm, 7, crushing nail, 11, rectangular socket, 12, round socket, 13, fastening bolt, 14, washer, 15, main water supply channel, 16, water spray hole, 17, water inlet hole, 18, auxiliary water supply channel, 1901, water inlet pipe, 1902, left connecting pipe, 20, right connecting pipe, 21, transfer roller, 22, upper roller, 23, lower roller, 24. Conveyor belt, 25. Speed ​​reduction motor, 2501. Guide scraper, 26. Guide plate, 27. Guide ramp, 28. Guide slide plate, 29. Protective cover, 30. Rear water pipe, 31. Front water pipe, 32. Leakage hole, 33. Atomizing nozzle, 34. Inner shell, 35. No. 1 exhaust port, 36. No. 1 air inlet pipe, 37. Outer shell, 38. No. 2 exhaust port, 39. No. 2 air inlet pipe, 40. Speed ​​regulating motor, 41. Gear reducer, 42. Hydraulic cylinder. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1-Figure 8As shown, an underground mining rock drilling device includes a lower support frame 1, an upper support frame 2, a mounting seat 3, a lower support roller 4, an upper support roller 5, a support arm 6, a crushing nail 7, a rotating drive mechanism, a lifting mechanism, and a conveying mechanism. The lower support frame 1 is slidably connected to the upper support frame 2 up and down, and the mounting seat 3 is fixed to the rear end of the lower support frame 1. The front part of the lower support frame 1 is rotatably connected to the horizontal lower support roller 4 along the left and right directions, and the front part of the upper support frame 2 is rotatably connected to the horizontal upper support roller 5 along the left and right directions. The upper support roller 5 and the lower support roller 4 are respectively installed with a plurality of support arms 6 along spiral tracks with opposite rotation directions, and each of the support arms 6 is respectively fixed with a plurality of The crushing nail 7 for contacting the rock and soil surface is arranged, the crushing nail 7 of the support arm 6 where the upper support roller 5 is located is arranged along the counterclockwise inclined direction when viewed from the right side, and the crushing nail 7 of the support arm 6 where the lower support roller 4 is located is arranged along the clockwise inclined direction when viewed from the right side, the support arms 6 installed on the upper support roller 5 and the support arms 6 installed on the lower support roller 4 are arranged alternately, the lower support frame 1 and the lower support roller 4 are jointly installed with a rotation drive mechanism, the upper support frame 2 and the upper support roller 5 are also jointly installed with a rotation drive mechanism, the lower support frame 1 and the upper support frame 2 are jointly installed with a lifting mechanism, and the lower support frame 1 is installed with a conveying mechanism.

[0026] When in use, the mounting seat 3 is fastened to the external propulsion equipment by fasteners (such as bolts and nuts), and the upper support roller 5 and the lower support roller 4 are driven by the rotary drive mechanism to rotate at opposite directions but the same speed, that is, the upper support roller 5 rotates counterclockwise and the lower support roller 4 rotates clockwise (from the right side, the following descriptions about the rotation direction are made from this angle and will not be repeated), so that the rock and soil can be excavated, and then the rock and soil produced by the excavation can be output by the conveying mechanism. When the excavation thickness needs to be changed, the upper support frame 2 and the lower support frame 1 can be moved up and down by controlling the lifting mechanism to move, so that the indirection between the upper support roller 5 and the lower support roller 4 can be changed. During this period, the coverage range of the support arm 6 where the upper support roller 5 is located when rotating is kept partially overlapped with the coverage range of the support arm 6 where the lower support roller 4 is located when rotating from the right side, so that the excavation thickness can be conveniently changed, and the mining volume per unit time also changes accordingly, so that when the excavation thickness increases, the work efficiency also increases accordingly, thereby meeting the mining needs.

[0027] The upper support roller 5 and the lower support roller 4 are respectively provided with a plurality of rectangular holes 11 and circular holes 12, and the rectangular holes 11 and circular holes 12 penetrate each other and are respectively perpendicular to the axis of the upper support roller 5 or the lower support roller 4, and the support arms 6 are inserted into the rectangular holes 11, and each of the support arms 6 is respectively threadedly connected with a hexagonal fastening bolt 13, and the fastening bolt 13 is inserted into the circular holes 12 to fasten the support arms 6.

[0028] Furthermore, by disassembling the fastening bolts 13 , the support arm 6 can be conveniently taken out from the rectangular insertion hole 11 , thereby facilitating replacement of the damaged support arm 6 and the crushing nail 7 together.

[0029] A plurality of washers 14 of equal thickness are inserted into the rectangular insertion hole 11 , and each of the washers 14 is respectively inserted into the fastening bolt 13 with a gap. After being stacked on each other, the washers 14 are located at the bottom of the rectangular insertion hole 11 and are squeezed by the support arm 6 .

[0030] Furthermore, by increasing or decreasing the number of washers 14 in the rectangular socket 11, the height of the support arm 6 protruding from the upper support roller 5 or the lower support roller 4 can be changed, thereby slightly changing the excavation thickness to meet different mining needs.

[0031] The upper support roller 5 and the lower support roller 4 are respectively coaxially provided with a spiral main water delivery channel 15, and the two main water delivery channels 15 are respectively connected with the rectangular jacks 11 of the upper support roller 5 and the lower support roller 4. The support arm 6 is hollow inside, and a plurality of water spray holes 16 are penetrated at a position of the support arm 6 near the crushing nail 7, and a water inlet hole 17 is penetrated at a position of the support arm 6 near the fastening bolt 13. The water inlet hole 17 and the water spray hole 16 are respectively connected with the inner cavity of the inner support arm 6, and the water inlet hole 17 can be connected with the main water delivery channel 15. The left part of the upper support roller 5 and the left part of the lower support roller 4 A secondary water supply channel 18 is separately provided, and a water inlet pipe 1901 is fixed to the left end of the upper support roller 5 and the left end of the lower support roller 4 respectively, and a left connecting pipe 1902 is radially fixed to the upper support roller 5 and the lower support roller 4 respectively, and the water inlet pipe 1901 and the left connecting pipe 1902 are respectively connected to the secondary water supply channel 18, and the left ends of the two main water supply channels 15 are respectively fixedly connected with a right connecting pipe 20, and the two left connecting pipes 1902 are respectively connected to the two right connecting pipes 20 through external pipes, and the two water inlet pipes 1901 are respectively connected to the external water supply system through a rotating joint and an external pipe.

[0032] Furthermore, water can be filled into the water inlet pipe 1901 through the water supply system, and then sprayed out through the auxiliary water supply channel 18, the left connecting pipe 1902, the right connecting pipe 20, the main water supply channel 15, the rectangular socket 11, the water inlet hole 17 and the water spray hole 16, so that water spraying operations can be carried out while excavating using the support arm 6 and the breaking nail 7. On the one hand, the support arm 6 and the breaking nail 7 can be cooled to reduce damage, and on the other hand, the rock and soil can be moistened to reduce dust.

[0033] The conveying mechanism includes a transfer roller 21, an upper roller 22, a lower roller 23, a conveyor belt 24, a reduction motor 25, a guide scraper 2501, a guide plate 26, a guide ramp 27, and the upper left part, the lower left part, the upper right part and the lower right part of the lower support frame 1 are respectively connected with a horizontal transfer roller 21 that rotates along the front-to-back direction, the upper part of the lower support frame 1 is connected with a plurality of upper rollers 22 that rotate in sequence from left to right along the front-to-back direction, and the lower part of the lower support frame 1 is connected with a plurality of lower rollers 23 that rotate in sequence from left to right along the front-to-back direction, and each of the transfer rollers 21 is connected with a conveyor belt 24 that rotates together, and the conveyor belt 24 is made of a water-permeable fabric, and the conveyor belt 24 is in contact with the upper outer circumference of the upper roller 22 and the lower roller 23, and the front end of the lower support frame 1 is fixed A horizontal reduction motor 25 is provided, and the rotating shaft of the reduction motor 25 is fixed coaxially with any transfer roller 21, and is electrically connected to an external power supply and circuit control system. A guide scraper 2501 is fixed to the lower left or lower right part of the lower support frame 1, and the middle part of the guide scraper 2501 is in a convex horizontal ridge shape, and the middle part of the guide scraper 2501 is in contact with the inner wall of the bottom of the conveyor belt 24. A plurality of guide plates 26 inclined forward and upward are fixed to the front end of the upper part of the lower support frame 1, and each of the guide plates 26 is arranged from left to right, and each of the guide plates 26 is staggered with the support arm 6 of the lower support roller 4. A guide ramp plate 27 inclined forward and upward is fixed to the front end of the bottom of the lower support frame 1, and the guide ramp plate 27 tends to the lower support roller 4.

[0034] By rotating the reduction motor 25, the transfer roller 21 connected to it can be driven to rotate clockwise (this is the front view), thereby driving the conveyor belt 24 to rotate clockwise (this is the front view), and a part of the rock and soil produced by excavation falls onto the guide plate 26 and is screened by the guide plate 26. Then, large pieces of rock are guided along the guide plate 26 to the top of the conveyor belt 24 and transported to the right, while another part of the rock and soil moves along the guide slope plate 27 through the gap of the guide plate 26 and is transported to the left through the bottom end of the inner wall of the conveyor belt 24, and is guided and discharged by the guide scraper 2501, thereby realizing the transportation of rock and soil to the left and right sides.

[0035] A plurality of guide slides 28 are fixed along the spiral direction on the outer circumference of the lower support roller 4. The spiral trajectory of each guide slide 28 is arranged in the same direction as the spiral trajectory of the support arm 6 where the lower support roller 4 is located. Each guide slide 28 corresponds to each support arm 6 where the lower support roller 4 is located in the circumferential direction. Each support arm 6 is located at an obtuse angle in the counterclockwise direction of the corresponding guide slide 28 when viewed from the right side.

[0036] Furthermore, as the support arm 6 rotates following the lower support roller 4, the debris generated by the rock excavation will be guided and discharged through the guide slide 28, thereby facilitating further discharge along the guide ramp 27, so that the rock and soil can be transported and discharged by the conveyor belt 24 in a timely manner.

[0037] A protective cover 29 extending forward is fixed to the rear of the upper support frame 2, and a horizontal rear water pipe 30 and a front water pipe 31 are fixed to the upper support frame 2 along the left and right directions. A plurality of leakage holes 32 are passed through the bottom of the rear water pipe 30 from left to right in sequence, and a plurality of atomizing nozzles 33 are fixed to the front of the front water pipe 31 in sequence from left to right. The front water pipe 31 and the rear water pipe 30 are respectively connected to the external water supply system, and the leakage holes 32 are located directly above the conveyor belt 24.

[0038] Furthermore, the protective cover 29 can protect against the splashing of gravel during the excavation process, reducing damage to external personnel and equipment. Through the external water supply system, water can be sprayed through the leakage hole 32 and the atomizing nozzle 33, so that the atomizing nozzle 33 can be used to spray water and atomize it to achieve dust reduction. The water sprayed through the leakage hole 32 can moisten the conveyor belt 24 below, and when the upper conveyor belt 24 and rock and soil fail to completely absorb water, the water can also be drained to moisten the lower conveyor belt 24 and rock and soil, thereby moistening the rock and soil in transportation, reducing the dust generated when the rock and soil are separated from the conveyor belt 24, and improving the utilization rate of water.

[0039] A horizontal inner shell 34 is fixed to the inner wall of the guide scraper 2501 along the front-to-back direction, and a No. 1 exhaust port 35 is opened at the lower part of the inner shell 34, which is away from the adjacent transfer roller 21. The inner shell 34 is also fixedly connected to a No. 1 air inlet pipe 36, and the No. 1 air inlet pipe 36 is connected to the No. 1 exhaust port 35, and the No. 1 air inlet pipe 36 is connected to the external compressed air supply system through a pipeline, and the No. 1 exhaust port 35 corresponds to the bottom end of the inner wall of the conveyor belt 24, and an outer shell 37 is fixed to the opposite end of the lower support frame 1 corresponding to the guide scraper 2501, and a No. 2 exhaust port 38 is opened at the part of the outer shell 37 close to the lower support frame 1, and the outer shell 37 is also fixedly connected to a No. 2 air inlet pipe 39, and the No. 2 exhaust port 38 is connected to the No. 2 air inlet pipe 39, and the No. 2 exhaust port 38 corresponds to the outer wall of the conveyor belt 24, and the No. 2 air inlet pipe 39 is connected to the external compressed air supply system through a pipeline.

[0040] Furthermore, through the external compressed air supply system, compressed air can be discharged from the No. 1 exhaust port 35 and the No. 2 exhaust port 38, thereby cleaning the outer wall and the inner wall of the conveyor belt 24 to reduce the contamination of rock and soil, so that the conveyor belt 24 after cleaning is more stable when in contact with the transfer roller 21, the upper roller 22, and the lower roller 23, and the damage caused by the rock and soil to the transfer roller 21, the upper roller 22, the lower roller 23 and the conveyor belt 24 is reduced.

[0041] The rotary drive mechanism includes a speed regulating motor 40 and a gear reducer 41. The gear reducers 41 are respectively fixed to the right ends of the upper support frame 2 and the lower support frame 1. The two gear reducers 41 are respectively fixed with speed regulating motors 40. The rotating shaft of the speed regulating motor 40 is coaxially fixed with the input shaft of the gear reducer 41. The output shafts of the two gear reducers 41 are respectively connected to the upper support roller 5 and the lower support roller 4 through gear meshing for transmission. The speed regulating motor 40 is electrically connected to the external control circuit and power supply. The lifting mechanism is a plurality of vertical hydraulic cylinders 42. The cylinder bodies of the hydraulic cylinders 42 are respectively fixed to the top of the lower support frame 1, and the tops of the piston rods of the hydraulic cylinders 42 are respectively fixed to the bottom of the upper support frame 2, and the hydraulic cylinders 42 are respectively connected to the external hydraulic system.

[0042] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. An underground mining rock drilling device, comprising a lower support frame (1), an upper support frame (2), a mounting seat (3), a lower support roller (4), an upper support roller (5), a support arm (6), a crushing nail (7), a rotary drive mechanism, a lifting mechanism, and a conveying mechanism, characterized in that: The lower support frame (1) is slidably connected to the upper support frame (2) in an up-and-down manner, a mounting seat (3) is fixed to the rear end of the lower support frame (1), the front portion of the lower support frame (1) is rotatably connected to a horizontal lower support roller (4) in the left-right direction, the front portion of the upper support frame (2) is rotatably connected to a horizontal upper support roller (5), the upper support roller (5) and the lower support roller (4) are respectively mounted with a plurality of support arms (6) along spiral tracks with opposite rotation directions, and each of the support arms (6) is respectively fixed with a plurality of support arms for engaging with the rock and soil. The crushing nails (7) are arranged in a surface contact manner, the crushing nails (7) of the support arm (6) where the upper support roller (5) is located are arranged in a counterclockwise inclined direction when viewed from the right side, and the crushing nails (7) of the support arm (6) where the lower support roller (4) is located are arranged in a clockwise inclined direction when viewed from the right side, the support arms (6) installed on the upper support roller (5) and the support arms (6) installed on the lower support roller (4) are arranged alternately, and the lower support frame (1) and the lower support roller (4) are jointly equipped with a rotation drive mechanism. The upper support frame (2) and the upper support roller (5) are also jointly equipped with a rotation drive mechanism, the lower support frame (1) and the upper support frame (2) are jointly equipped with a lifting mechanism, and the lower support frame (1) is equipped with a conveying mechanism; the upper support roller (5) and the lower support roller (4) are respectively provided with a plurality of rectangular plug holes (11) and circular plug holes (12), the rectangular plug holes (11) and the circular plug holes (12) interpenetrating and respectively perpendicular to the axis of the upper support roller (5) or the lower support roller (4), and the support arm ( 6) inserted into the rectangular socket (11), each support arm (6) is respectively threadedly connected with a hexagonal fastening bolt (13), and the fastening bolt (13) is inserted into the circular socket (12) to fasten the support arm (6); a plurality of washers (14) of equal thickness are also inserted into the rectangular socket (11), each of the washers (14) is respectively inserted with a gap with the fastening bolt (13), and each of the washers (14) is stacked on top of each other and is located at the bottom of the rectangular socket (11) and is squeezed by the support arm (6);The upper support roller (5) and the lower support roller (4) are coaxially provided with spiral main water supply channels (15), and the two main water supply channels (15) are respectively connected to the rectangular jacks (11) of the upper support roller (5) and the lower support roller (4). The support arm (6) is hollow inside, and a plurality of water spray holes (16) are penetrated at a position of the support arm (6) near the crushing nail (7). A water inlet hole (17) is penetrated at a position of the support arm (6) near the fastening bolt (13). The water inlet hole (17) and the water spray hole (16) are respectively connected to the inner cavity of the support arm (6). The water inlet hole (17) can be connected to the main water supply channel (15). The left part of the upper support roller (5) and the lower support roller (4) are connected to the inner cavity of the support arm (6). (4) A secondary water delivery channel (18) is provided at the left part, a water inlet pipe (1901) is fixed at the left end of the upper support roller (5) and the left end of the lower support roller (4), a left connecting pipe (1902) is fixed radially to the upper support roller (5) and the lower support roller (4), the water inlet pipe (1901) and the left connecting pipe (1902) are respectively connected to the secondary water delivery channel (18), the left ends of the two main water delivery channels (15) are respectively connected to the right connecting pipe (20), the two left connecting pipes (1902) are respectively connected to the two right connecting pipes (20) through external pipes, and the two water inlet pipes (1901) are respectively connected to the external water supply system through a rotating joint and an external pipe. ; 2. The underground mining rock drilling device according to claim 1, characterized in that: The conveying mechanism comprises a transfer roller (21), an upper roller (22), a lower roller (23), a conveyor belt (24), a reduction motor (25), a guide scraper (2501), a guide plate (26), a guide ramp plate (27), the upper left part, the lower left part, the upper right part and the lower right part of the lower support frame (1) are respectively connected to the horizontal transfer roller (21) in a forward and backward direction, the upper part of the lower support frame (1) is connected to a plurality of upper rollers (22) in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a forward and backward direction in a backward and backward direction, and the transfer rollers (21) are connected to the conveyor belt (24) in a forward and backward direction ... A horizontal reduction motor (25) is fixed at the front end, the rotating shaft of the reduction motor (25) is fixed coaxially with any transfer roller (21), and is electrically connected to an external power supply and circuit control system. A guide scraper (2501) is fixed at the lower left or lower right part of the lower support frame (1), the middle part of the guide scraper (2501) is in an outwardly convex horizontal ridge shape, and the middle part of the guide scraper (2501) is in contact with the inner wall of the bottom of the conveyor belt (24). A plurality of guide plates (26) inclined forward and upward are fixed at the front end of the upper part of the lower support frame (1), and each of the guide plates (26) is arranged from left to right, and each of the guide plates (26) is staggered with the support arm (6) of the lower support roller (4). A guide ramp plate (27) inclined forward and upward is fixed at the front end of the bottom of the lower support frame (1), and the guide ramp plate (27) tends to the lower support roller (4).

3. The underground mining rock drilling device according to claim 2, characterized in that: A plurality of guide slides (28) are fixed along the spiral direction on the outer circumference of the lower support roller (4); the spiral tracks arranged on the guide slides (28) have the same rotation direction as the spiral tracks arranged on the support arms (6) on which the lower support roller (4) is located; the guide slides (28) correspond to the support arms (6) on which the lower support roller (4) is located in the circumferential direction; and the support arms (6) are located at obtuse angles in the counterclockwise direction of the corresponding guide slides (28) when viewed from the right side.

4. The underground mining rock drilling device according to claim 3, characterized in that: A protective cover (29) extending forward is fixed to the rear of the upper support frame (2), and a horizontal rear water pipe (30) and a front water pipe (31) are fixed to the upper support frame (2) in the left-right direction. A plurality of water leakage holes (32) are passed through the bottom of the rear water pipe (30) in sequence from left to right, and a plurality of atomizing nozzles (33) are fixed to the front of the front water pipe (31) in sequence from left to right. The front water pipe (31) and the rear water pipe (30) are respectively connected to an external water supply system, and the water leakage holes (32) are located directly above the conveyor belt (24).

5. The underground mining rock drilling device according to claim 4, characterized in that: A horizontal inner shell (34) is fixed to the inner wall of the guide scraper (2501) along the front-to-back direction. A No. 1 exhaust port (35) is opened at the lower part of the inner shell (34) and is away from the adjacent transfer roller (21). The inner shell (34) is also fixedly connected to a No. 1 air inlet pipe (36). The No. 1 air inlet pipe (36) is connected to the No. 1 exhaust port (35). The No. 1 air inlet pipe (36) is connected to the external compressed air supply system through a pipeline. The No. 1 exhaust port (35) corresponds to the bottom end of the inner wall of the conveyor belt (24). An outer shell (37) is fixed to the end opposite to the end of the lower support frame (1) corresponding to the guide scraper (2501), and a No. 2 air exhaust port (38) is provided in the portion of the outer shell (37) close to the lower support frame (1). The outer shell (37) is also fixedly connected to a No. 2 air inlet pipe (39), and the No. 2 air exhaust port (38) is connected to the No. 2 air inlet pipe (39). The No. 2 air exhaust port (38) corresponds to the outer wall of the conveyor belt (24), and the No. 2 air inlet pipe (39) is connected to an external compressed air supply system through a pipeline.

6. An underground mining rock drilling device according to any one of claims 1 to 5, characterized in that: The rotary drive mechanism comprises a speed regulating motor (40) and a gear reducer (41), the gear reducers (41) being fixed to the right ends of the upper support frame (2) and the lower support frame (1), respectively, the two gear reducers (41) being fixed to the speed regulating motor (40), the rotating shaft of the speed regulating motor (40) being fixed coaxially with the input shaft of the gear reducer (41), the output shafts of the two gear reducers (41) being transmission-connected to the upper support roller (5) and the lower support roller (4) respectively through gear meshing, the speed regulating motor (40) being electrically connected to an external control circuit and power supply, the lifting mechanism being a plurality of vertical hydraulic cylinders (42), the cylinder bodies of the hydraulic cylinders (42) being fixed to the top end of the lower support frame (1), the top ends of the piston rods of the hydraulic cylinders (42) being fixed to the bottom end of the upper support frame (2), respectively, and the hydraulic cylinders (42) being connected to an external hydraulic system.

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