Coal mining method and equipment for inclined thin coal seam

Abstract

The invention discloses a coal mining method and equipment for an inclined thin coal seam, relates to the technical field of coal mining, and aims to solve the technical problem that the mining efficiency of an existing inclined thin coal seam is not high. The method is implemented based on the coal mining equipment, and the coal mining equipment comprises a coal mining machine. A rectangular track guide mechanism is installed at the head end of a coal mining machine, a spiral drilling machine is arranged at the moving end of the rectangular track guide mechanism, the spiral drilling machine is driven by the rectangular track guide mechanism to move in a rectangular track, the edge of an inclined thin coal seam is crushed, and then a swing crushing mechanism is driven by a thin reciprocating mechanism to reciprocate. Coal in the rectangular frame is crushed through swinging crushing of the swinging crushing mechanism to achieve efficient mining, and compared with traditional mining equipment which is heavy and large in size, the mining equipment can better adapt to the terrain and geological characteristics of the inclined thin coal seam and has the advantages of being low in cost, easy and convenient to mine, high in coal resource recovery rate and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and more specifically to a method and equipment for mining coal in an inclined thin coal seam. Background Art

[0002] With the continuous development of my country's coal resources, the reserves of medium-thick and thick coal seams are decreasing, and thin coal seams (thickness ≤ 1.3m) have gradually become the main mining target. Their recoverable reserves account for about 20% of the national total, but the actual output accounts for only about 7% to 10%. The mining of thin coal seams faces technical bottlenecks such as narrow space, poor equipment adaptability, high gangue content, and complex screening. The problems are more prominent in inclined thin coal seams.

[0003] Existing coal seam mining equipment usually uses large and heavy drills or cutting heads for coal mining operations. When mining inclined and thin coal seams, these devices often collect underground soil or rock layers into the equipment, resulting in the need for cumbersome screening equipment to separate coal from other materials, increasing the complexity and cost of operations.

[0004] In addition, for the mining of thin coal seams, the existing technology usually replaces small coal mining heads. However, this method has shortcomings in both replacement efficiency and mining efficiency, and cannot meet the needs of efficient and economical mining.

[0005] Therefore, there is an urgent need for a new coal mining method and equipment that can effectively solve the above problems, improve the mining efficiency of thin coal seams, reduce the complexity of operations, reduce the collection of underground soil or rock layers, and improve the utilization rate of coal resources. In view of this, we propose a method for coal mining in inclined thin coal seams. Summary of the invention

[0006] The purpose of the present invention is to provide a method and equipment for mining inclined thin coal seams, so as to solve the technical problem that the mining efficiency of existing inclined thin coal seams is low.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a coal mining device for inclined thin coal seams, comprising a coal mining machine, a rectangular guide mechanism is fixedly provided at the head end of the coal mining machine, a spiral drill is installed on the rectangular guide mechanism, a preliminary crushing mechanism is provided at one end of the rectangular guide mechanism away from the coal mining machine, a thin reciprocating mechanism is provided at one end of the preliminary crushing mechanism away from the rectangular guide mechanism, and a swing crushing mechanism is movably provided on the thin reciprocating mechanism; Preferably, the matrix guide mechanism includes a fixed component, a rotating drive component and a rectangular movable component. The fixed component is fixedly connected to the head end of the coal mining machine by bolts, the rotating drive component is arranged on the fixed component, one end of the rectangular movable component is fixedly connected to the fixed component, and the other end of the rectangular movable component is movably inserted into the rotating drive component, and the spiral drilling machine is installed on the rectangular movable component.

[0008] Preferably, the rotating drive component includes a reduction motor, a rotating rod, a rotating drum and a movable hole. The reduction motor is fixedly arranged at one end of the fixed component close to the coal mining machine, the rotating rod is rotatably inserted on the fixed component, one end of the rotating rod is connected to the output end of the reduction motor, the rotating drum is fixedly connected to one end of the rotating rod away from the reduction motor, the movable hole is opened on the rotating drum, and one end of the rectangular movable component is movably inserted on the movable hole.

[0009] Preferably, the rectangular movable assembly includes a fixed block, a first guide rod, a first movable cylinder, a second guide rod, a second movable cylinder, a connecting block, an insertion rod and a spring. The fixed block is symmetrically fixedly connected to the top of the fixed assembly, the first guide rod is fixedly connected between the two fixed blocks, the first movable cylinder is movably sleeved on the first guide rod, the second guide rod is fixedly connected to the bottom end of the first movable cylinder, the second movable cylinder is movably sleeved on the second guide rod, the connecting block is rotatably connected to the second movable cylinder, one end of the insertion rod is fixedly connected to the connecting block, the other end of the insertion rod is movably inserted into the movable hole, and the spring is sleeved on the insertion rod.

[0010] Preferably, the auger drill is mounted on the second moving cylinder; The auger drill comprises a power head and an auger rod, wherein the power head is fixedly arranged on the second moving cylinder, and the auger rod is connected to the output end of the power head.

[0011] Preferably, the preliminary crushing mechanism includes a connecting bracket, a drill rod shuttle cavity and an alloy crushing head, one end of the connecting bracket is connected to the matrix guide mechanism, and the other end of the connecting bracket is connected to the thin reciprocating mechanism, the drill rod shuttle cavity is opened on the connecting bracket, and the alloy crushing head is fixedly connected to one end of the connecting bracket away from the matrix guide mechanism and the thin reciprocating mechanism, the height of the drill rod shuttle cavity is greater than the diameter of the spiral drill rod, and the alloy crushing head is triangular in shape and has cutting edge patterns on the surface.

[0012] Preferably, the thin reciprocating mechanism includes a mounting assembly, a self-locking driving member and a reciprocating assembly, the mounting assembly is arranged at one end of the preliminary crushing mechanism away from the matrix guide mechanism, the self-locking driving member is arranged inside the mounting assembly, one end of the reciprocating assembly is arranged on the outer wall of the mounting assembly, and the other end of the reciprocating assembly is connected to the swing crushing mechanism.

[0013] Preferably, the mounting assembly includes a mounting plate, a long hole, a guide groove, a slide groove and a mounting cavity, the mounting plate is arranged at the end of the preliminary crushing mechanism away from the matrix guide mechanism, the long hole is opened on the mounting plate, the guide groove is arranged on the outer wall of the mounting plate near the bottom end of the long hole, the slide groove is opened on the mounting plate near the top end of the long hole, the mounting cavity is opened on one side of the mounting plate, the self-locking drive member is arranged in the mounting cavity, and one end of the reciprocating assembly is movably arranged on the guide groove.

[0014] Preferably, the reciprocating assembly includes a first gear, a second gear, a first fan gear, a second fan gear, a slide bar and a rack. The first gear is rotatably connected to the mounting plate, the first gear is connected to the output end of the self-locking drive member, the second gear is rotatably connected to the mounting plate and meshingly connected to the first gear, the first fan gear is fixedly connected to the first gear by bolts, the second fan gear is fixedly connected to the second gear by bolts, the second fan gear is rotated 180 degrees compared to the first fan gear and fixedly connected to the second gear, the slide bar is movably inserted in the guide groove, the rack is fixedly connected to the bottom end of the slide bar by bolts, the rack meshes and matches with the first fan gear and the second fan gear, and the swing crushing mechanism movably passes through the long hole and is connected to the top of the slide bar.

[0015] Preferably, the swing crushing mechanism includes a movable rod, a servo motor, an eccentric block, an oil drill bit, a sliding rod, a connecting rod and a chuck, the movable rod is movably arranged on the long hole, one end of the movable rod is connected to the slide bar, the servo motor is connected to the end of the movable rod away from the slide bar, the eccentric block is connected to the output end of the servo motor, the oil drill bit is connected to the end of the eccentric block away from the servo motor, the sliding rod is movably inserted in the slide groove, the connecting rod is fixedly connected to the outer wall of the eccentric block, one end of the chuck is connected to the end of the connecting rod away from the eccentric block, and the other end of the chuck is movably sleeved on the clamping end of the movable rod.

[0016] A method for mining coal in an inclined thin coal seam comprises the following steps: Step 1: Equipment in place operation; First, move the coal mining machine in the coal seam tunnel, and use the mobility of the coal mining machine to accurately adjust its position until the initial crushing mechanism is in close contact with the thin coal seam, preparing for subsequent coal mining operations; Step 2: Preliminary stress crushing operation; Drive the coal mining machine and use the power of the coal mining machine to push the preliminary crushing mechanism, so that the preliminary crushing mechanism acts on the coal seam to crush the initial stress of the coal seam and reduce the difficulty of subsequent mining; Step 3: Rectangular trajectory crushing operation; The rectangular track guide mechanism is driven to drive the auger to move in a rectangular track, and the auger is driven to break the thin coal seam in a rectangular track, so that the coal seam is pre-processed regularly in this way; Step 4: Efficient mining operation; The thin reciprocating mechanism and the swing crushing mechanism are driven to perform efficient mining within the rectangular range formed by the rectangular guide mechanism. The thin reciprocating mechanism and the swing crushing mechanism cooperate with each other to fully exploit the coal resources of the thin coal seam; Step 5: coal output operation; The coal mined by the spiral drill and the swing crushing mechanism falls onto the coal mining machine, which transports it to the coal chute and then transports it into the tunnel along the coal chute.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention improves the existing coal mining equipment by installing a rectangular guide mechanism at the head end of the coal mining machine, arranging a spiral drill at the moving end of the rectangular guide mechanism, and driving the spiral drill to move in a rectangular track through the rectangular guide mechanism to crush the edge of the inclined thin coal seam. The swing crushing mechanism is then driven to reciprocate by a thin reciprocating mechanism, and the coal in the rectangular frame is crushed by the swinging crushing mechanism to achieve efficient mining. Compared with the traditional heavy and large mining equipment, the present invention can better adapt to the terrain and geological characteristics of the inclined thin coal seam, and has the advantages of low cost, simple mining and high coal resource recovery rate.

[0018] 2. In the present invention, the reduction motor is driven to rotate, and the reduction motor drives the rotating rod and the rotating drum to rotate, and the movable hole synchronously drives the insertion rod to rotate, and the other end of the insertion rod is rotatably connected to the second moving cylinder through the connecting block, so the second moving cylinder is first driven to slide on the second guide rod, and when the second moving cylinder slides to the top of the second guide rod, the force is transmitted to the first moving cylinder at this time. Since the first moving cylinder is slidingly arranged on the first guide rod, the first moving cylinder slides on the first guide rod, and when the first moving cylinder moves to the end of the first guide rod, the force is transmitted to the second moving cylinder, and the second moving cylinder moves downward along the second guide rod until it reaches the end of the second guide rod. Similarly, at this time, the force is transmitted to the first moving cylinder again, and the first moving cylinder slides on the first guide rod, driving the spiral drill to form a rectangular trajectory, completing the pretreatment of the coal seam, reducing the subsequent required crushing strength, and laying a good foundation for subsequent mining.

[0019] 3. In the present invention, a spring is sleeved on the insertion rod. The function of the spring is to release the compressed elastic force to assist the movement of the first movable cylinder and the second movable cylinder, thereby effectively reducing the torque that the reduction motor needs to output. The buffering effect of the spring can prevent the reduction motor from being damaged due to instantaneous excessive load or impact force, reduce the frequency of motor failure, extend the service life of the equipment, reduce the equipment maintenance cost and replacement frequency, ensure the continuity and stability of the coal mining operation, reduce energy consumption, reduce the overall energy consumption of the coal mining operation, and improve the energy utilization efficiency.

[0020] 4. In the present invention, the coal mining machine is driven and the power of the coal mining machine is used to push the fixed component, the fixed component pushes the connecting bracket, the connecting bracket pushes the alloy crushing head, and the initial stress of the coal seam is crushed by the alloy crushing head to facilitate the insertion of the spiral drill rod. The spiral drill rod is then driven by the matrix guide mechanism to directly pass through the side of the drill rod shuttle cavity to start pretreatment of the coal seam. Compared with the traditional method of directly inserting the spiral drill rod into the coal seam, it not only protects the spiral drill from damage caused by impact, but also further improves the efficiency of pretreatment of thin coal seams.

[0021] 5. In the present invention, after the preliminary crushing mechanism, the track guide mechanism and the spiral drill have completed the pretreatment of the thin coal seam, the swing crushing mechanism is first driven to rotate, and then the first gear is driven to rotate through the self-locking driving member, and the first gear meshes and drives the second gear to rotate synchronously. Since the first sector gear and the second sector gear are fixedly connected to the first gear and the second gear by bolts, the first sector gear and the second sector gear rotate synchronously. Since the first sector gear and the second sector gear are arranged with a deflection of 180 degrees, when the first sector gear is meshed with the rack, the second sector gear and The rack is in a disengaged state, therefore, the first sector gear meshes with the driving rack to drive the slide bar to move along a horizontal direction on the guide groove; when the first sector gear disengages from the rack, the second sector gear meshes with the driving rack to drive the slide bar to move along another horizontal direction on the guide groove, and the slide bar realizes reciprocating motion on the guide groove, and the slide bar drives the swing crushing mechanism to realize reciprocating motion. The reciprocating mechanism of the present invention is thin in design and has an extremely narrow installation space compared to other reciprocating motion mechanisms, which facilitates further reducing the volume of the coal mining equipment and adapts to the problem that bulky mining equipment cannot be used in thin coal seam tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of one side of the present invention; Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention; Figure 3 It is a partial side structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the structure of the matrix guide mechanism, the spiral drill, the preliminary crushing mechanism, the thin reciprocating mechanism and the swing crushing mechanism of the present invention; Figure 5 It is a schematic diagram of the structure of the matrix guide mechanism of the present invention; Figure 6 It is a partial cross-sectional structural schematic diagram of the matrix guide mechanism of the present invention; Figure 7 It is a schematic diagram of the motion state of the matrix guide mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of one side of the thin reciprocating mechanism of the present invention; Fig. 9 It is a schematic diagram of the disassembled structure of the thin reciprocating mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the other side of the thin reciprocating mechanism of the present invention; Fig.11 It is a structural schematic diagram of one side of the reciprocating assembly and the swing crushing mechanism of the present invention; Fig.12 It is a schematic diagram of the structure of the other side of the reciprocating assembly and the swing crushing mechanism of the present invention; Fig.13 It is a schematic diagram of the structure of the swing crushing mechanism of the present invention; Fig.14 A schematic diagram of a thin coal seam mining trajectory of the coal mining method of the present invention; Fig.15 It is a schematic diagram of the use state of the present invention.

[0023] Description of the numbers in the figure: 1. Coal mining machine; 2. Matrix guide mechanism; 3. Auger drill; 4. Preliminary crushing mechanism; 5. Thin reciprocating mechanism; 6. Swing crushing mechanism; 201, fixed component; 202, rotating driving member; 203, rectangular moving component; 301, power head; 302, auger rod; 401, connecting bracket; 402, drill rod shuttle cavity; 403, alloy crushing head; 501, mounting assembly; 502, self-locking drive member; 503, reciprocating assembly; 601, movable rod; 602, servo motor; 603, eccentric block; 604, oil drill bit; 605, sliding rod; 606, connecting rod; 607, chuck; 2021, reduction motor; 2022, rotating rod; 2023, rotating drum; 2024, movable hole; 2031, fixed block; 2032, first guide rod; 2033, first moving cylinder; 2034, second guide rod; 2035, second moving cylinder; 2036, connecting block; 2037, plug rod; 2038, spring; 5011, mounting plate; 5012, long hole; 5013, guide groove; 5014, slide groove; 5015, mounting cavity; 5031, first gear; 5032, second gear; 5033, first sector gear; 5034, second sector gear; 5035, slide bar; 5036, rack. DETAILED DESCRIPTION

[0024] In order to facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention is further described in conjunction with the accompanying drawings of the specification.

[0025] Example 1 like Figures 1 to 15As shown, the present invention provides a coal mining equipment, which includes a coal mining machine 1, a rectangular guide mechanism 2 is fixedly provided at the head end of the coal mining machine 1, a spiral drill 3 is installed on the rectangular guide mechanism 2, a preliminary crushing mechanism 4 is provided at the end of the rectangular guide mechanism 2 away from the coal mining machine 1, a thin reciprocating mechanism 5 is provided at the end of the preliminary crushing mechanism 4 away from the rectangular guide mechanism 2, and a swing crushing mechanism 6 is movably provided on the thin reciprocating mechanism 5; the present invention improves the existing coal mining equipment by installing the rectangular guide mechanism 2 at the head end of the coal mining machine 1, arranging the spiral drill 3 at the moving end of the rectangular guide mechanism 2, driving the spiral drill 3 to move in a rectangular trajectory through the rectangular guide mechanism 2 to crush the edge of the inclined thin coal seam, and then driving the swing crushing mechanism 6 to reciprocate through the thin reciprocating mechanism 5, and the coal in the rectangular frame is crushed by the swing crushing of the swing crushing mechanism 6 to realize efficient mining. Compared with the traditional heavy and large mining equipment, the present invention can better adapt to the terrain and geological characteristics of the inclined thin coal seam, and has the advantages of low cost, simple mining and high coal resource recovery rate.

[0026] In the embodiment of the present invention, the rectangular track guide mechanism 2 includes a fixed component 201, a rotating drive member 202 and a rectangular moving component 203. The fixed component 201 is fixedly connected to the head end of the coal mining machine 1 by bolts, the rotating drive member 202 is arranged on the fixed component 201, one end of the rectangular moving component 203 is fixedly connected to the fixed component 201, and the other end of the rectangular moving component 203 is movably inserted on the rotating drive member 202, and the spiral drill 3 is installed on the rectangular moving component 203. In the present invention, by driving the rotating drive member 202 to rotate, the rotating drive member 202 drives the rectangular moving component 203 to move, and the rectangular moving component 203 drives the spiral drill 3 installed thereon to move in a rectangular track, starting from the crushing position of the preliminary crushing mechanism 4, first crushing the edge of the thin coal seam into a rectangular outer frame, pre-treating the thin coal seam, and reducing the subsequent required crushing strength.

[0027] In an embodiment of the present invention, the rotating driving component 202 includes a reduction motor 2021, a rotating rod 2022, a rotating drum 2023 and a movable hole 2024. The reduction motor 2021 is fixedly arranged at one end of the fixed component 201 close to the coal mining machine 1, the rotating rod 2022 is rotatably inserted on the fixed component 201, one end of the rotating rod 2022 is connected to the output end of the reduction motor 2021, the rotating drum 2023 is fixedly connected to the end of the rotating rod 2022 away from the reduction motor 2021, the movable hole 2024 is opened on the rotating drum 2023, and one end of the rectangular movable component 203 is movably inserted in the movable hole 2024.

[0028] In an embodiment of the present invention, the rectangular moving component 203 includes a fixed block 2031, a first guide rod 2032, a first moving cylinder 2033, a second guide rod 2034, a second moving cylinder 2035, a connecting block 2036, an insertion rod 2037 and a spring 2038. The fixed block 2031 is symmetrically fixedly connected to the top of the fixed component 201, the first guide rod 2032 is fixedly connected between the two fixed blocks 2031, the first moving cylinder 2033 is movably sleeved on the first guide rod 2032, the second guide rod 2034 is fixedly connected to the bottom end of the first moving cylinder 2033, the second moving cylinder 2035 is movably sleeved on the second guide rod 2034, the connecting block 2036 is rotatably connected to the second moving cylinder 2035, one end of the insertion rod 2037 is fixedly connected to the connecting block 2036, the other end of the insertion rod 2037 is movably inserted into the movable hole 2024, and the spring 2038 is sleeved on the insertion rod 2037.

[0029] In the present invention, by driving the reduction motor 2021 to rotate, the reduction motor 2021 drives the rotating rod 2022 and the rotating cylinder 2023 to rotate, and the movable hole 2024 synchronously drives the plug rod 2037 to rotate. The other end of the plug rod 2037 is rotatably connected to the second movable cylinder 2035 through the connecting block 2036, so that the second movable cylinder 2035 is first driven to slide on the second guide rod 2034. When the second movable cylinder 2035 slides to the top of the second guide rod 2034, the force is transmitted to the first movable cylinder 2033. Since the first movable cylinder 2033 slides on the first guide rod 2032, so the first moving cylinder 2033 slides on the first guide rod 2032, when the first moving cylinder 2033 moves to the end of the first guide rod 2032, the force is transmitted to the second moving cylinder 2035, the second moving cylinder 2035 moves downward along the second guide rod 2034 until it reaches the end of the second guide rod 2034, similarly, the force is transmitted to the first moving cylinder 2033 at this time, the first moving cylinder 2033 slides on the first guide rod 2032, driving the spiral drill 3 to form a rectangular trajectory, completing the pretreatment of the coal seam, and laying a good foundation for subsequent mining.

[0030] like Figure 7 As shown, since a spring 2038 is sleeved on the insertion rod 2037, the function of the spring 2038 is to assist the movement of the first moving cylinder 2033 and the second moving cylinder 2035 by releasing the compressed elastic force, thereby effectively reducing the torque that the reduction motor 2021 needs to output. The buffering effect of the spring 2038 can prevent the reduction motor 2021 from being damaged due to instantaneous excessive load or impact force, thereby reducing the frequency of motor failures, extending the service life of the equipment, reducing the equipment maintenance cost and replacement frequency, ensuring the continuity and stability of the coal mining operation, and reducing energy consumption, reducing the overall energy consumption of the coal mining operation, and improving the energy utilization efficiency.

[0031] In an embodiment of the present invention, the auger drill 3 is installed on the second mobile cylinder 2035; the auger drill 3 includes a power head 301 and an auger rod 302, the power head 301 is fixed on the second mobile cylinder 2035, and the auger rod 302 is connected to the output end of the power head 301.

[0032] As another embodiment of the present invention, the preliminary crushing mechanism 4 includes a connecting bracket 401, a drill rod shuttle cavity 402 and an alloy crushing head 403. One end of the connecting bracket 401 is connected to the matrix guide mechanism 2, and the other end of the connecting bracket 401 is connected to the thin reciprocating mechanism 5. The drill rod shuttle cavity 402 is opened on the connecting bracket 401, and the alloy crushing head 403 is fixedly connected to one end of the connecting bracket 401 away from the matrix guide mechanism 2 and the thin reciprocating mechanism 5. The height of the drill rod shuttle cavity 402 is greater than the diameter of the spiral drill rod 302, and the alloy crushing head 403 is triangular in shape and has cutting edge patterns on the surface.

[0033] In the present invention, the coal mining machine 1 is driven and the power of the coal mining machine 1 is used to push the fixed component 201, the fixed component 201 pushes the connecting bracket 401, and the connecting bracket 401 pushes the alloy crushing head 403. The initial stress of the coal seam is crushed by the alloy crushing head 403 to facilitate the insertion of the spiral drill rod 302. The spiral drill rod 302 is then driven by the matrix guide mechanism 2 to directly pass through the side of the drill rod shuttle cavity 402 to start pretreatment of the coal seam. Compared with the traditional method of directly inserting the spiral drill rod 302 into the coal seam, it not only protects the spiral drill 3 from damage caused by impact, but also further improves the efficiency of pretreatment of thin coal seams.

[0034] As another embodiment of the present invention, the thin reciprocating mechanism 5 includes a mounting assembly 501, a self-locking driving member 502 and a reciprocating assembly 503. The mounting assembly 501 is arranged at one end of the preliminary crushing mechanism 4 away from the matrix guide mechanism 2, the self-locking driving member 502 is arranged inside the mounting assembly 501, one end of the reciprocating assembly 503 is arranged on the outer wall of the mounting assembly 501, and the other end of the reciprocating assembly 503 is connected to the swing crushing mechanism 6.

[0035] As another embodiment of the present invention, the mounting assembly 501 includes a mounting plate 5011, a long hole 5012, a guide groove 5013, a slide groove 5014 and a mounting cavity 5015. The mounting plate 5011 is arranged at the end of the preliminary crushing mechanism 4 away from the matrix guide mechanism 2, the long hole 5012 is opened on the mounting plate 5011, the guide groove 5013 is arranged on the outer wall of the mounting plate 5011 near the bottom end of the long hole 5012, the slide groove 5014 is opened on the mounting plate 5011 near the top end of the long hole 5012, the mounting cavity 5015 is opened on one side of the mounting plate 5011, the self-locking drive member 502 is arranged in the mounting cavity 5015, and one end of the reciprocating assembly 503 is movably arranged on the guide groove 5013.

[0036] As another embodiment of the present invention, the reciprocating assembly 503 includes a first gear 5031, a second gear 5032, a first sector gear 5033, a second sector gear 5034, a slide bar 5035 and a rack 5036, the first gear 5031 is rotatably connected to the mounting plate 5011, the first gear 5031 is connected to the output end of the self-locking driving member 502, the second gear 5032 is rotatably connected to the mounting plate 5011 and meshed with the first gear 5031, and the first sector gear 5033 is fixedly connected to the first gear 5031 by bolts. 31, the second sector gear 5034 is fixedly connected to the second gear 5032 by bolts, the second sector gear 5034 is rotated 180 degrees compared to the first sector gear 5033 and is fixedly connected to the second gear 5032, the slide bar 5035 is movably inserted in the guide groove 5013, the rack 5036 is fixedly connected to the bottom end of the slide bar 5035 by bolts, the rack 5036 is meshed with the first sector gear 5033 and the second sector gear 5034, and the swing crushing mechanism 6 is movably passed through the long hole 5012 and connected to the top of the slide bar 5035.

[0037] In the present invention, after the preliminary crushing mechanism 4, the track guide mechanism 2 and the spiral drill 3 have completed the pretreatment of the thin coal seam, the swing crushing mechanism 6 is first driven to rotate, and then the first gear 5031 is driven to rotate through the self-locking driving member 502, and the first gear 5031 is meshed to drive the second gear 5032 to rotate synchronously. Since the first sector gear 5033 and the second sector gear 5034 are both fixedly connected to the first gear 5031 and the second gear 5032 by bolts, the first sector gear 5033 and the second sector gear 5034 are both rotated synchronously. Since the first sector gear 5033 and the second sector gear 5034 are arranged to be deflected by 180 degrees, when the first sector gear 5033 is meshed with the rack 5036, the second sector gear 503 4 is disengaged from the rack 5036, therefore, the first sector gear 5033 meshes with the rack 5036 to drive the slide bar 5035 to move along a horizontal direction on the guide groove 5013; when the first sector gear 5033 is disengaged from the rack 5036, the second sector gear 5034 meshes with the rack 5036 to drive the slide bar 5035 to move along another horizontal direction on the guide groove 5013; the slide bar 5035 realizes reciprocating motion on the guide groove 5013; the slide bar 5035 drives the swing crushing mechanism 6 to realize reciprocating motion; the reciprocating mechanism of the present invention is thin in design and has an extremely narrow installation space compared with other reciprocating motion mechanisms, so as to further reduce the volume of coal mining equipment and adapt to the problem that heavy mining equipment cannot be used in thin coal seam tunnels.

[0038] As another embodiment of the present invention, the swing crushing mechanism 6 includes a movable rod 601, a servo motor 602, an eccentric block 603, an oil drill bit 604, a slide bar 605, a connecting rod 606 and a chuck 607. The movable rod 601 is movably arranged on the long hole 5012, one end of the movable rod 601 is connected to the slide bar 5035, the servo motor 602 is connected to the end of the movable rod 601 away from the slide bar 5035, and the eccentric block 603 is connected to the servo motor 602. At the output end, the oil drill bit 604 is connected to the end of the eccentric block 603 away from the servo motor 602, the sliding rod 605 is movably inserted in the sliding groove 5014, the connecting rod 606 is fixedly connected to the outer wall of the eccentric block 603, one end of the chuck 607 is connected to the end of the connecting rod 606 away from the eccentric block 603, and the other end of the chuck 607 is movably sleeved on the clamping end of the movable rod 601; there is a movable gap between the chuck 607 in the present invention and the clamping end of the movable rod 601.

[0039] In the present invention, the servo motor 602 is driven to drive the eccentric block 603 to rotate, and the eccentric block 603 drives the oil drill bit 604 to rotate eccentrically. Fig.14 As shown, the eccentrically swinging and rotating oil drill bit 604 can efficiently crush the pre-treated coal. The design of the slide bar 605, the connecting rod 606 and the chuck 607 further enhances the stability of the swing crushing mechanism 6, prevents the swing crushing mechanism 6 from breaking due to encountering harder coal blocks, reduces the failure rate and improves stability.

[0040] Example 2 The present invention provides a method for mining coal in an inclined thin coal seam, comprising the following steps: Step 1: Equipment in place operation; First, the coal mining machine 1 is moved in the coal seam mine tunnel, and the position is accurately adjusted by utilizing the mobility of the coal mining machine 1 until the alloy crushing head 403 contacts the thin coal seam, so as to prepare for the subsequent coal mining operation; Step 2: Preliminary stress crushing operation; The coal mining machine 1 is driven, and the fixed component 201 is pushed by the power of the coal mining machine 1, and the fixed component 201 pushes the connecting bracket 401, and the connecting bracket 401 pushes the alloy crushing head 403, and the initial stress of the coal seam is crushed by the alloy crushing head 403, thereby reducing the difficulty of subsequent mining; Step 3: Rectangular trajectory crushing operation; The reduction motor 2021 is driven to rotate, and the reduction motor 2021 drives the rotating rod 2022 and the rotating cylinder 2023 to rotate. The movable hole 2024 synchronously drives the plug rod 2037 to rotate. The other end of the plug rod 2037 is rotatably connected to the second movable cylinder 2035 through the connecting block 2036. Therefore, the second movable cylinder 2035 is first driven to slide on the second guide rod 2034. When the second movable cylinder 2035 slides to the top of the second guide rod 2034, the force is transmitted to the first movable cylinder 2033. Since the sliding of the first movable cylinder 2033 is arranged on The first moving cylinder 2033 slides on the first guide rod 2032. When the first moving cylinder 2033 moves to the end of the first guide rod 2032, the force is transmitted to the second moving cylinder 2035. The second moving cylinder 2035 moves downward along the second guide rod 2034 until it reaches the end of the second guide rod 2034. Similarly, the force is transmitted to the first moving cylinder 2033. The first moving cylinder 2033 slides on the first guide rod 2032, driving the auger 3 to form a rectangular track, thereby completing the pretreatment of the coal seam. Step 4: Efficient mining operation; First, the servo motor 602 is driven to rotate the eccentric block 603, and the eccentric block 603 drives the oil drill bit 604 to rotate eccentrically. The eccentrically swinging and rotating oil drill bit 604 can efficiently crush the pre-treated coal; secondly, the self-locking driving member 502 drives the first gear 5031 to rotate, and the first gear 5031 meshes and drives the second gear 5032 to rotate synchronously. Since the first fan gear 5033 and the second fan gear 5034 are fixedly connected to the first gear 5031 and the second gear 5032 by bolts, the first fan gear 5033 and the second fan gear 5034 rotate synchronously. 5034 is arranged with a 180-degree deflection. When the first sector gear 5033 is meshed with the rack 5036, the second sector gear 5034 is disengaged from the rack 5036. Therefore, the first sector gear 5033 is meshed with the rack 5036 to drive the slide bar 5035 to move along a horizontal direction on the guide groove 5013. When the first sector gear 5033 is disengaged from the rack 5036, the second sector gear 5034 is meshed with the rack 5036 to drive the slide bar 5035 to move along another horizontal direction on the guide groove 5013. The slide bar 5035 realizes reciprocating motion on the guide groove 5013, and the slide bar 5035 drives the oil drill bit 604 to realize reciprocating and efficient crushing. Step 5: coal output operation; The coal mined by the auger 3 and the swing crushing mechanism 6 falls onto the coal mining machine 1, is transported to the coal chute by the coal mining machine 1, and is transported away along the coal chute into the roadway.

[0041] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An inclined thin coal seam mining equipment, characterized in that: The invention comprises a coal mining machine (1), wherein a matrix guide mechanism (2) is fixedly provided at the head end of the coal mining machine (1), a spiral drill (3) is installed on the matrix guide mechanism (2), a preliminary crushing mechanism (4) is provided at one end of the matrix guide mechanism (2) away from the coal mining machine (1), a thin reciprocating mechanism (5) is provided at one end of the preliminary crushing mechanism (4) away from the matrix guide mechanism (2), and a swing crushing mechanism (6) is movably provided on the thin reciprocating mechanism (5); The matrix guide mechanism (2) comprises a fixed component (201), a rotating drive component (202) and a rectangular movable component (203); the fixed component (201) is fixedly connected to the head end of the coal mining machine (1) by means of bolts; the rotating drive component (202) is arranged on the fixed component (201); one end of the rectangular movable component (203) is fixedly connected to the fixed component (201); the other end of the rectangular movable component (203) is movably inserted into the rotating drive component (202); and the spiral drilling machine (3) is installed on the rectangular movable component (203).

2. The inclined thin coal seam mining equipment according to claim 1 is characterized in that: The rotary drive component (202) comprises a reduction motor (2021), a rotating rod (2022), a rotating drum (2023) and a movable hole (2024); the reduction motor (2021) is fixedly arranged at one end of the fixed component (201) close to the coal mining machine (1); the rotating rod (2022) is rotatably inserted into the fixed component (201); one end of the rotating rod (2022) is connected to the output end of the reduction motor (2021); the rotating drum (2023) is fixedly connected to one end of the rotating rod (2022) away from the reduction motor (2021); the movable hole (2024) is provided on the rotating drum (2023); and one end of the rectangular movable component (203) is movably inserted into the movable hole (2024).

3. The inclined thin coal seam mining equipment according to claim 2 is characterized in that: The rectangular moving assembly (203) comprises a fixed block (2031), a first guide rod (2032), a first moving cylinder (2033), a second guide rod (2034), a second moving cylinder (2035), a connecting block (2036), an insert rod (2037) and a spring (2038); the fixed block (2031) is symmetrically fixedly connected to the top of the fixed assembly (201); the first guide rod (2032) is fixedly connected between the two fixed blocks (2031); the first moving cylinder (2033) is movably sleeved on the first guide rod ( The movable cylinder (2024) is a movable cylinder (2024), the second guide rod (2034) is fixedly connected to the bottom end of the first movable cylinder (2033), the second movable cylinder (2035) is movably sleeved on the second guide rod (2034), the connecting block (2036) is rotatably connected to the second movable cylinder (2035), one end of the insertion rod (2037) is fixedly connected to the connecting block (2036), the other end of the insertion rod (2037) is movably inserted into the movable hole (2024), and the spring (2038) is sleeved on the insertion rod (2037).

4. The inclined thin coal seam mining equipment according to claim 3 is characterized in that: The auger drill (3) is installed on the second moving cylinder (2035); The auger drill (3) comprises a power head (301) and an auger rod (302); the power head (301) is fixedly mounted on the second movable cylinder (2035); and the auger rod (302) is connected to an output end of the power head (301).

5. The inclined thin coal seam mining equipment according to claim 4 is characterized in that: The preliminary crushing mechanism (4) comprises a connecting bracket (401), a drill rod shuttle cavity (402) and an alloy crushing head (403); one end of the connecting bracket (401) is connected to the matrix guide mechanism (2), and the other end of the connecting bracket (401) is connected to the thin reciprocating mechanism (5); the drill rod shuttle cavity (402) is provided on the connecting bracket (401); the alloy crushing head (403) is fixedly connected to one end of the connecting bracket (401) away from the matrix guide mechanism (2) and the thin reciprocating mechanism (5); the height of the drill rod shuttle cavity (402) is greater than the diameter of the spiral drill rod (302); and the alloy crushing head (403) is triangular in shape and has cutting edge patterns on its surface.

6. The inclined thin coal seam mining equipment according to claim 5, characterized in that: The thin reciprocating mechanism (5) comprises a mounting assembly (501), a self-locking driving member (502) and a reciprocating assembly (503); the mounting assembly (501) is arranged at an end of the preliminary crushing mechanism (4) away from the matrix guide mechanism (2); the self-locking driving member (502) is arranged inside the mounting assembly (501); one end of the reciprocating assembly (503) is arranged on an outer wall of the mounting assembly (501); and the other end of the reciprocating assembly (503) is connected to the swing crushing mechanism (6).

7. The inclined thin coal seam mining equipment according to claim 6, characterized in that: The mounting assembly (501) comprises a mounting plate (5011), a long hole (5012), a guide groove (5013), a slide groove (5014) and a mounting cavity (5015); the mounting plate (5011) is arranged at one end of the preliminary crushing mechanism (4) away from the matrix guide mechanism (2); the long hole (5012) is provided on the mounting plate (5011); the guide groove (5013) is provided on the outer wall of the mounting plate (5011) near the bottom end of the long hole (5012); the slide groove (5014) is provided on the mounting plate (5011) near the top end of the long hole (5012); the mounting cavity (5015) is provided on one side of the mounting plate (5011); the self-locking driving member (502) is provided in the mounting cavity (5015); and one end of the reciprocating assembly (503) is movably provided on the guide groove (5013).

8. The inclined thin coal seam mining equipment according to claim 7, characterized in that: The reciprocating assembly (503) comprises a first gear (5031), a second gear (5032), a first fan gear (5033), a second fan gear (5034), a slide bar (5035) and a rack (5036); the first gear (5031) is rotatably connected to the mounting plate (5011); the first gear (5031) is connected to the output end of the self-locking driving member (502); the second gear (5032) is rotatably connected to the mounting plate (5011) and meshed with the first gear (5031); the first fan gear (5033) is fixedly connected to the first gear (5031) by bolts; the second The fan gear (5034) is fixedly connected to the second gear (5032) by bolts. The second fan gear (5034) is fixedly connected to the second gear (5032) by rotating 180 degrees compared to the first fan gear (5033). The slide bar (5035) is movably inserted in the guide groove (5013). The rack (5036) is fixedly connected to the bottom end of the slide bar (5035) by bolts. The rack (5036) meshes with the first fan gear (5033) and the second fan gear (5034). The swing crushing mechanism (6) is movably passed through the long hole (5012) and connected to the top end of the slide bar (5035).

9. The inclined thin coal seam mining equipment according to claim 8, characterized in that: The swing crushing mechanism (6) comprises a movable rod (601), a servo motor (602), an eccentric block (603), an oil drill bit (604), a sliding rod (605), a connecting rod (606) and a chuck (607); the movable rod (601) is movably arranged on the long hole (5012); one end of the movable rod (601) is connected to the sliding bar (5035); the servo motor (602) is connected to one end of the movable rod (601) away from the sliding bar (5035); the eccentric block (603) is connected to the connecting rod (606) and the connecting rod (607 ... At the output end of the servo motor (602), the oil drill bit (604) is connected to the end of the eccentric block (603) away from the servo motor (602), the sliding rod (605) is movably inserted in the sliding groove (5014), the connecting rod (606) is fixedly connected to the outer wall of the eccentric block (603), one end of the chuck (607) is connected to the end of the connecting rod (606) away from the eccentric block (603), and the other end of the chuck (607) is movably sleeved on the clamping end of the movable rod (601).

10. A method for mining coal in an inclined thin coal seam, characterized in that: The method uses the coal mining equipment according to claim 1, comprising the following steps: Step 1: Equipment in place operation; First, an inclined track is arranged on a ramp beside the inclined coal seam, a coal chute is arranged in the inclined track, a coal mining machine (1) moves on the inclined track, and a preliminary crushing mechanism (4) is closely contacted with the inclined thin coal seam, so as to prepare for subsequent coal mining operations; Step 2: Preliminary stress crushing operation; Driving the coal mining machine (1), using the power of the hydraulic equipment at the head end of the coal mining machine (1) to push the preliminary crushing mechanism (4), so that the preliminary crushing mechanism (4) acts on the coal seam to crush the initial stress of the coal seam, thereby reducing the difficulty of subsequent mining; Step 3: Rectangular trajectory crushing operation; The rectangular track guide mechanism (2) is driven to drive the spiral drill (3) to move in a rectangular track, and the spiral drill (3) is driven to break the thin coal seam in a rectangular track, thereby pre-processing the coal seam regularly; Step 4: Efficient mining operation; The thin reciprocating mechanism (5) and the swing crushing mechanism (6) are driven to efficiently mine within the rectangular range formed by the rectangular guide mechanism (2); the thin reciprocating mechanism (5) and the swing crushing mechanism (6) cooperate with each other to fully mine the coal resources of the thin coal seam; Step 5: coal output operation; The coal mined by the auger (3) and the swing crushing mechanism (6) falls onto the coal mining machine (1), is transported by the coal mining machine (1) to the coal chute, and is transported along the coal chute into the roadway.

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