Inclined thin coal seam mining method and equipment

Abstract

The present invention discloses a method and equipment for mining inclined thin coal seams, relates to the technical field of coal mining, and aims to solve the technical problem of low mining efficiency of existing inclined thin coal seams. The method is implemented based on a coal mining device, which includes a coal mining machine. The present invention improves the existing coal mining equipment by installing a matrix guide mechanism at the head end of the coal mining machine, arranging a spiral drill at the moving end of the matrix guide mechanism, and driving the spiral drill to move in a rectangular trajectory through the matrix guide mechanism to crush the edge of the inclined thin coal seam. The rocking crushing mechanism is then driven to reciprocate by a thin reciprocating mechanism, and the coal in the rectangular frame is crushed by the rocking crushing mechanism to achieve efficient mining. Compared with traditional heavy and bulky mining equipment, the present invention can better adapt to the terrain and geological characteristics of inclined thin coal seams, and has the advantages of low cost, simple mining and high coal resource recovery rate.

Description

Technical Field

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

[0002] With the continued development of my country's coal resources, reserves of medium- and thicker coal seams are decreasing. Thin coal seams (thickness ≤ 1.3m) have gradually become the primary target for mining. Their recoverable reserves account for approximately 20% of the national total, but actual production only accounts for approximately 7% to 10%. Mining thin coal seams faces technical bottlenecks such as limited space, poor equipment adaptability, high gangue content, and complex screening. These challenges are particularly prominent in inclined thin coal seams.

[0003] Existing coal seam mining equipment typically uses large, heavy drills or cutting heads to mine coal. When mining inclined, thin coal seams, these devices often collect underground soil or rock along with the equipment. This requires cumbersome screening equipment to separate the coal from other materials, increasing operational complexity and cost.

[0004] In addition, for mining thin coal seams, existing technologies usually replace 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 operational complexity, reduce the extraction of underground soil or rock layers, and improve the utilization rate of coal resources. In view of this, we propose a method for mining 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 of low mining efficiency of existing inclined thin coal seams.

[0007] 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 fixedly provided at the head end of the coal mining machine, an auger mounted on the rectangular guide mechanism, a preliminary crushing mechanism provided at one end of the rectangular guide mechanism away from the coal mining machine, a thin reciprocating mechanism provided at one end of the preliminary crushing mechanism away from the rectangular guide mechanism, and a swing crushing mechanism movably provided on the thin reciprocating mechanism;

[0008] 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.

[0009] 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 on 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 the 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.

[0010] 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.

[0011] Preferably, the auger drill is mounted on the second movable cylinder;

[0012] The auger drill comprises a power head and an auger rod. The power head is fixed on the second movable cylinder, and the auger rod is connected to the output end of the power head.

[0013] 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 the 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.

[0014] Preferably, the thin reciprocating mechanism includes a mounting assembly, a self-locking drive member and a reciprocating assembly, the mounting assembly is arranged at the end of the preliminary crushing mechanism away from the matrix guide mechanism, the self-locking drive 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.

[0015] 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 provided at one end of the preliminary crushing mechanism away from the matrix guide mechanism; the long hole is provided on the mounting plate; the guide groove is provided on the outer wall of the mounting plate near the bottom end of the long hole; the slide groove is provided on the mounting plate near the top end of the long hole; the mounting cavity is provided on one side of the mounting plate; the self-locking drive member is provided in the mounting cavity; and one end of the reciprocating assembly is movably provided on the guide groove.

[0016] Preferably, the reciprocating assembly includes a first gear, a second gear, a first fan gear, a second fan gear, a slide 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 meshed with 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 is movably inserted in the guide groove, the rack is fixedly connected to the bottom end of the slide by bolts, the rack is meshed with the first fan gear and the second fan gear, and the swing crushing mechanism is movably passed through the long hole and connected to the top of the slide.

[0017] 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 into 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.

[0018] A method for mining coal in an inclined thin coal seam, comprising the following steps:

[0019] Step 1: Equipment positioning operation;

[0020] First, the shearer is moved within the coal seam tunnel. Utilizing its maneuverability, the shearer is precisely positioned until the initial crushing mechanism is in close contact with the thin coal seam, preparing for subsequent coal mining operations.

[0021] Step 2: Preliminary stress crushing operation;

[0022] Drive the coal mining machine and use the power of the coal mining machine to push the initial crushing mechanism, so that the initial crushing mechanism acts on the coal seam, breaking the initial stress of the coal seam and reducing the difficulty of subsequent mining;

[0023] Step 3: Rectangular trajectory crushing operation;

[0024] The matrix guide mechanism is driven to drive the auger to move in a rectangular trajectory. At the same time, the auger is driven to break the thin coal seam in a rectangular trajectory. In this way, the coal seam is pre-processed regularly.

[0025] Step 4: Efficient mining operation;

[0026] Drive the thin reciprocating mechanism and the swing crushing mechanism to carry out efficient mining within the rectangular range formed by the matrix 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;

[0027] Step 5: Coal output operation;

[0028] 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 roadway along the coal chute.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention improves existing coal mining equipment by installing a rectangular guide mechanism at the head end of the coal mining machine and arranging a spiral drill at the moving end of the rectangular guide mechanism. The rectangular guide mechanism drives the spiral drill to move in a rectangular trajectory to crush the edge of the inclined thin coal seam. The thin reciprocating mechanism then drives the swing crushing mechanism to reciprocate. The swing crushing mechanism crushes the coal in the rectangular frame to achieve efficient mining. Compared with traditional heavy and bulky mining equipment, the present invention can better adapt to the terrain and geological characteristics of inclined thin coal seams, and has the advantages of low cost, simple mining and high coal resource recovery rate.

[0031] 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 rotated and connected to the second moving cylinder through the connecting block. Therefore, it first drives the second moving cylinder to slide on the second guide rod. When the second moving cylinder slides to the top of the second guide rod, the force is transmitted to the first moving cylinder. Since the first moving cylinder is slidingly arranged on the first guide rod, the first moving cylinder slides on the first guide rod. 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.

[0032] 3. The present invention also has a spring sleeved on the insertion rod. The function of the spring is to assist the movement of the first movable cylinder and the second movable cylinder by releasing the compressed elastic force, which effectively reduces 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 energy utilization efficiency.

[0033] 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, and the connecting bracket pushes the alloy crushing head. The initial stress of the coal seam is broken 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 pre-processing 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 machine from damage caused by impact, but also further improves the efficiency of pre-processing thin coal seams.

[0034] 5. In the present invention, when the preliminary crushing mechanism, the trace guide mechanism and the spiral drill have completed the pre-processing of the thin coal seam, the swing crushing mechanism is first driven to rotate, and then the first gear is driven to rotate by the self-locking drive member, and the first gear is engaged to drive 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 to be deflected 180 degrees, when the first sector gear is engaged with the rack, the second sector gear is engaged with the rack. The rack is in a disengaged state, so the first sector gear engages to drive the 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 engages to drive the rack to drive the slide bar to move along another horizontal direction on the guide groove. The slide bar performs reciprocating motion on the guide groove, and the slide bar drives the swing crushing mechanism to perform reciprocating motion. The reciprocating mechanism of the present invention is thinner in design and has an extremely narrow installation space compared to other reciprocating motion mechanisms, which facilitates further reducing the volume of 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

[0035] Figure 1 It is a schematic diagram of the overall structure of one side of the present invention;

[0036] Figure 2 This is a schematic diagram of the overall structure of the other side of the present invention;

[0037] Figure 3 It is a partial side structural schematic diagram of the present invention;

[0038] Figure 4 It is a schematic structural diagram of the matrix guide mechanism, auger drill, primary crushing mechanism, thin reciprocating mechanism and swing crushing mechanism of the present invention;

[0039] Figure 5 Schematic diagram of the structure of the matrix guide mechanism of the present invention;

[0040] Figure 6 It is a schematic diagram of a partial cross-sectional structure of the matrix guide mechanism of the present invention;

[0041] Figure 7 Schematic diagram of the motion state of the matrix guide mechanism of the present invention;

[0042] Figure 8 This is a schematic structural diagram of one side of the thin reciprocating mechanism of the present invention;

[0043] Figure 9 This is a schematic diagram of the disassembled structure of the thin reciprocating mechanism of the present invention;

[0044] Figure 10 This is a schematic structural diagram of the other side of the thin reciprocating mechanism of the present invention;

[0045] Figure 11 This is a structural diagram of one side of the reciprocating assembly and the swing crushing mechanism of the present invention;

[0046] Figure 12 This is a schematic structural diagram of the other side of the reciprocating assembly and the swing crushing mechanism of the present invention;

[0047] Figure 13 This is a schematic structural diagram of the swing crushing mechanism of the present invention;

[0048] Figure 14 A schematic diagram of a thin coal seam mining trajectory of the coal mining method of the present invention;

[0049] Figure 15 It is a schematic diagram of the use state of the present invention.

[0050] Description of the numbers in the figure:

[0051] 1. Coal mining machine; 2. Matrix guide mechanism; 3. Auger; 4. Primary crushing mechanism; 5. Thin reciprocating mechanism; 6. Swing crushing mechanism;

[0052] 201, fixed component; 202, rotating drive component; 203, rectangular moving component;

[0053] 301, power head; 302, auger rod;

[0054] 401, connecting bracket; 402, drill rod shuttle cavity; 403, alloy crushing head;

[0055] 501, mounting assembly; 502, self-locking drive member; 503, reciprocating assembly;

[0056] 601, movable rod; 602, servo motor; 603, eccentric block; 604, oil drill bit; 605, sliding rod; 606, connecting rod; 607, chuck;

[0057] 2021. reduction motor; 2022. rotating rod; 2023. rotating drum; 2024. movable hole;

[0058] 2031, fixed block; 2032, first guide rod; 2033, first movable cylinder; 2034, second guide rod; 2035, second movable cylinder; 2036, connecting block; 2037, insert rod; 2038, spring;

[0059] 5011, mounting plate; 5012, long hole; 5013, guide groove; 5014, slide groove; 5015, mounting cavity;

[0060] 5031, first gear; 5032, second gear; 5033, first sector gear; 5034, second sector gear; 5035, slide bar; 5036, rack. DETAILED DESCRIPTION

[0061] 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 with reference to the accompanying drawings.

[0062] Example 1

[0063] like Figures 1 to 15 As 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 a rectangular guide mechanism 2 at the head end of the coal mining machine 1, and arranging a spiral drill 3 on the movable end of the rectangular guide mechanism 2, and 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 mechanism 6 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.

[0064] In an embodiment of the present invention, the rectangular track guide mechanism 2 includes a fixed component 201, a rotary 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 bolts, the rotary 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, and the other end of the rectangular movable component 203 is movably inserted into the rotary drive component 202. The auger 3 is installed on the rectangular movable component 203. In the present invention, by driving the rotary drive component 202 to rotate, the rotary drive component 202 drives the rectangular movable component 203 to move, and the rectangular movable component 203 drives the auger 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.

[0065] In an embodiment of the present invention, the rotating drive 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 on the fixed component 201 close to one end of 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 on the movable hole 2024.

[0066] In an embodiment of the present invention, the rectangular moving assembly 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 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 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.

[0067] In the present invention, by driving the reduction motor 2021 to rotate, the reduction motor 2021 drives the rotating rod 2022 and the rotating drum 2023 to rotate, and the movable hole 2024 synchronously drives the insertion rod 2037 to rotate. The other end of the insertion rod 2037 is rotatably connected to the second movable drum 2035 through the connecting block 2036. Therefore, the second movable drum 2035 is first driven to slide on the second guide rod 2034. When the second movable drum 2035 slides to the top of the second guide rod 2034, the force is transmitted to the first movable drum 2033. Since the first movable drum 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, at this time, the force is transmitted to the first moving cylinder 2033 again. 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.

[0068] like Figure 7As 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 movable cylinder 2033 and the second movable cylinder 2035 by releasing the compressed elastic force, thereby effectively reducing the torque required to be output by the reduction motor 2021. The buffering effect of the spring 2038 can prevent the reduction motor 2021 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 energy utilization efficiency.

[0069] In an embodiment of the present invention, the auger drill 3 is installed on the second movable 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 movable cylinder 2035 , and the auger rod 302 is connected to the output end of the power head 301 .

[0070] 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 the 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. The alloy crushing head 403 is triangular in shape and has cutting edge patterns on the surface.

[0071] 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 broken by the alloy crushing head 403, which facilitates 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 preprocessing 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 machine 3 from damage caused by impact, but also further improves the efficiency of preprocessing thin coal seams.

[0072] 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 the 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.

[0073] 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.

[0074] 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 drive 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 5035 is movably inserted into the guide groove 5013. The rack 5036 is fixedly connected to the bottom end of the slide 5035 by bolts. The rack 5036 is meshed with the first sector gear 5033 and the second sector gear 5034. The swing crushing mechanism 6 is movably passed through the long hole 5012 and connected to the top of the slide 5035.

[0075] In the present invention, when the preliminary crushing mechanism 4, the moment guide mechanism 2 and the spiral drill 3 have completed the pre-processing 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 by the self-locking driving member 502. The first gear 5031 is engaged and drives the second gear 5032 to rotate synchronously. Since the first sector gear 5033 and the second sector gear 5034 are 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 rotate synchronously. Since the first sector gear 5033 and the second sector gear 5034 are arranged to be deflected 180 degrees, when the first sector gear 5033 is engaged with the rack 5036, the second sector gear 503 4 is disengaged from the rack 5036. Therefore, the first sector gear 5033 engages with the rack 5036 to drive the slide bar 5035 to move in one horizontal direction on the guide groove 5013. When the first sector gear 5033 disengages from the rack 5036, the second sector gear 5034 engages with the rack 5036 to drive the slide bar 5035 to move in another horizontal direction on the guide groove 5013. The slide bar 5035 performs reciprocating motion on the guide groove 5013, and the slide bar 5035 drives the swing crushing mechanism 6 to perform 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. This facilitates further reducing the volume of coal mining equipment and adapts to the problem that bulky mining equipment cannot be used in thin coal seam tunnels.

[0076] 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 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 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 slide rod 605 is movably inserted in the slide 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 and the clamping end of the movable rod 601 in the present invention.

[0077] 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. Figure 14 As shown, the eccentrically swinging and rotating oil drill bit 604 can efficiently crush the pre-treated coal. The design of the slide rod 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.

[0078] Example 2

[0079] The present invention provides a method for mining coal in an inclined thin coal seam, comprising the following steps:

[0080] Step 1: Equipment positioning operation;

[0081] First, the shearer 1 is moved in the coal seam tunnel. The shearer 1 is maneuverable and its position is accurately adjusted until the alloy crushing head 403 contacts the thin coal seam, thus preparing for subsequent coal mining operations.

[0082] Step 2: Preliminary stress crushing operation;

[0083] 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, and the alloy crushing head 403 breaks the initial stress of the coal seam, thereby reducing the difficulty of subsequent mining;

[0084] Step 3: Rectangular trajectory crushing operation;

[0085] The reduction motor 2021 is driven to rotate, and the reduction motor 2021 drives the rotating rod 2022 and the rotating drum 2023 to rotate. The movable hole 2024 synchronously drives the insertion rod 2037 to rotate. The other end of the insertion rod 2037 is rotatably connected to the second movable drum 2035 through the connecting block 2036. Therefore, the second movable drum 2035 is first driven to slide on the second guide rod 2034. When the second movable drum 2035 slides to the top of the second guide rod 2034, the force is transmitted to the first movable drum 2033. Since the sliding of the first movable drum 2033 is arranged on The first movable cylinder 2033 is on the first guide rod 2032, so the first movable cylinder 2033 slides on the first guide rod 2032. When the first movable cylinder 2033 moves to the end of the first guide rod 2032, the force is transmitted to the second movable cylinder 2035, and the second movable cylinder 2035 moves downward along the second guide rod 2034 until it reaches the end of the second guide rod 2034. Similarly, at this time, the force is transmitted to the first movable cylinder 2033, and the first movable cylinder 2033 slides on the first guide rod 2032, driving the auger 3 to form a rectangular trajectory, completing the pretreatment of the coal seam;

[0086] Step 4: Efficient mining operation;

[0087] 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 engages and drives the second gear 5032 to rotate synchronously. Since the first sector gear 5033 and the second sector gear 5034 are 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 rotate synchronously. 5034 is arranged with a 180-degree deflection. When the first sector gear 5033 is engaged with the rack 5036, the second sector gear 5034 is disengaged from the rack 5036. Therefore, the first sector gear 5033 is engaged with the rack 5036 to drive the slide 5035 to move in one 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 engaged with the rack 5036 to drive the slide 5035 to move in the other horizontal direction on the guide groove 5013. The slide 5035 realizes reciprocating motion on the guide groove 5013, and the slide 5035 drives the oil drill bit 604 to realize reciprocating and efficient crushing.

[0088] Step 5: Coal output operation;

[0089] The coal mined by the auger 3 and the swing crushing mechanism 6 falls onto the coal shearer 1, is transported by the coal shearer 1 to the coal chute, and is transported away through the coal chute into the roadway.

[0090] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection 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) includes 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 bolts; the rotating drive component (202) is arranged on the fixed component (201) and includes a reduction motor (2021), a rotating drum (2023) and a movable hole (2024); the reduction motor (2021) is fixedly arranged on one end of the fixed component (201) close to the coal mining machine (1); the output end of the reduction motor (2021) passes through the fixed component (201) and is connected to the rotating drum (2023); the movable hole (2024) is opened on the rotating drum (2023); and one end of the rectangular movable component (203) is movably inserted into the movable hole (2024); 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 into the rotating drive member (202). The rectangular moving component (203) comprises a first guide rod (2032) provided on the fixed component (201), a first moving cylinder (2033) movably sleeved on the first guide rod (2032), and a bottom end of the first moving cylinder (2033) is fixedly connected to a second guide rod (2034); a second moving cylinder (2035) movably sleeved on the second guide rod (2034); a connecting block (2036) is rotatably connected to the second moving cylinder (2035); an inserting rod (2037) has one end fixedly connected to the connecting block (2036) and the other end movably inserted into the movable hole (2024); and a spring (2038) sleeved on the inserting rod (2037); The auger drill (3) is mounted on the rectangular moving assembly (203).

2. The inclined thin coal seam mining equipment according to claim 1, characterized in that: The rotary drive 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 on 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 opened 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, 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 inserting rod (2037) and a spring (2038), wherein 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), and 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 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, characterized in that: The auger drill (3) is mounted on the second movable 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, 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 opened 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); 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), wherein 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).

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), wherein 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) 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), wherein 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 drive member (502), the second gear (5032) is rotatably connected to the mounting plate (5011) and meshed with the first gear (5031), the first sector gear (5033) is fixedly connected to the first gear (5031) by bolts, and 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 into 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 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 slide rod (605), a connecting rod (606) and a chuck (607), wherein 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 connecting rod (606). 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 into 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 positioning operation; First, an inclined track is arranged on a ramp beside an inclined coal seam, a coal chute is set in the inclined track, a coal mining machine (1) moves on the inclined track, and a preliminary crushing mechanism (4) is brought into close contact with the inclined thin coal seam, thus preparing for subsequent coal mining operations; Step 2: Preliminary stress crushing operation; Drive the coal mining machine (1), and use 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, crushing the initial stress of the coal seam, and 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 crush 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 spiral drill (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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