Coal mine rock burst prevention and evaluation integrated equipment

Abstract

The invention relates to the technical field of coal mining, in particular to coal mine rock burst prevention and evaluation integrated equipment which comprises a base, a driving component is movably arranged at the top of the base and comprises a propelling vertical plate, an airtight switching cover is fixedly mounted on the left side face of the propelling vertical plate, and a drilling component is rotatably mounted in the airtight switching cover. The side wall drilling unit is driven by the drilling component to operate together in the drilling process, the inner wall of a drilled hole is bored, the drilling efficiency is greatly improved, a boring tool bit in the side wall drilling unit exerts an impact effect on the hole wall in the boring process, some hard rock stratums can be conveniently drilled, and the drilling efficiency is improved. The drilling performance of the device is greatly improved, meanwhile, due to the fact that the hole wall is bored synchronously in the drilling process of the device, the hole diameter of a drilled rock hole is increased, and on the premise that drilling is conducted at the same depth, the device can obtain more pulverized coal.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, and in particular to integrated equipment for preventing and controlling rock burst in coal mines. Background Art

[0002] Rock burst, as a special form of mine pressure, has become a major disaster in coal mining, especially in deep mining. Borehole pressure relief refers to a local prevention and control method of rock burst by drilling holes in the coal seam impact hazard zone to reduce the stress concentration of the coal body. After the conventional drilling pressure relief construction, it is necessary to evaluate the effect of coal seam drilling pressure relief. The drill cuttings and coal powder amount evaluation method is the main one, and other evaluation methods such as stress change, electromagnetic radiation index, microseismic index, etc. are supplementary. The drill cuttings method is a reliable method to judge the danger of rock burst by drilling small diameter holes in the coal seam according to the amount of coal powder drilled out at different depths and its change law and related dynamic phenomena;

[0003] According to the Chinese patent application publication number: CN118008134A, an integrated equipment for the prevention, control and assessment of rock burst in coal mines is disclosed. When drilling coal with a spiral drill blade, the external and internal synchronous coal suction settings of the external suction holes and the internal suction holes can effectively reduce the overflow and loss rate of coal powder on the one hand, and can effectively reduce the residual rate of coal powder on the surface of the spiral drill blade on the other hand. By achieving the above technical effects, the collection and weighing accuracy of coal powder is effectively improved, thereby improving the prevention, control and assessment effect of rock burst in coal mines. Despite this, the above device still has shortcomings. The device extracts coal powder by drilling with a spiral drill blade. If a harder rock layer is encountered, the drilling efficiency is not high, and the hole diameter drilled by the device is small. Therefore, when the spiral drill blade drills shallowly, the amount of coal powder obtained is small. Summary of the invention

[0004] To this end, the present invention provides an integrated equipment for coal mine rock burst prevention and control assessment to solve the above-mentioned problems.

[0005] The present invention provides the following technical solution: an integrated equipment for prevention and assessment of rock burst in coal mines, comprising a base, wherein four square vertical tubes are fixedly installed at the four corners of the top of the base, two square cross bars distributed on the left and right are arranged on the top of the base, and the square cross bars are fixedly installed between the two square vertical tubes located at the front and the back, and a driving component is movably arranged on the top of the base;

[0006] The driving component includes a propulsion vertical plate, an airtight adapter cover is fixedly installed on the left side of the propulsion vertical plate, a drilling component is rotatably installed inside the airtight adapter cover, the drilling component includes a drilling barrel rotatably installed on the inner wall of the airtight adapter cover, a plurality of clearance holes and a plurality of adsorption holes are opened on the outer wall of the drilling barrel, an inner pipe sleeve is fixedly installed on the middle part of the left wall of the drilling barrel, the inner pipe sleeve passes through the right side of the drilling barrel, a plurality of side drilling units distributed at equal distances on the left and right are arranged inside the drilling barrel, the side drilling unit includes a plurality of external spline plug shafts distributed at equal angles, the external spline plug shaft is rotatably installed on the outer wall of the inner pipe sleeve, and the external spline plug shaft movably passes through the inner wall and outer wall of the inner pipe sleeve, a boring tool holder is movably provided inside the clearance hole, the position of the boring tool holder corresponds to the position of the external spline plug shaft, the boring tool holder A boring cutter head is fixedly installed on a side away from the external spline shaft, and a torsion limiting shaft rod is fixedly installed on the middle part of a side of the boring tool holder close to the external spline shaft, an internal spline socket is provided at one end of the torsion limiting shaft rod close to the external spline shaft, an inner wall of the internal spline socket is slidably connected to an outer wall of the external spline shaft, a driven bevel gear is fixedly installed on one end of the external spline shaft away from the torsion limiting shaft rod, a cylindrical cam is fixedly installed on one end of the outer wall of the torsion limiting shaft rod away from the boring cutter head, a plurality of fixed discs equidistantly distributed on the left and right are fixedly installed on the outer wall of the inner sleeve, a plurality of cam pins equiangularly distributed are fixedly installed on the right side surface of the fixed disc, the position of the cam pin corresponds to the position of the cylindrical cam, and the outer wall of the cam pin is slidably connected to the cam groove wall of the cylindrical cam, and a plurality of adsorption components equiangularly distributed are provided inside the drilling tube.

[0007] As a preferred solution of the present invention, the driving component also includes a power motor, which is fixedly installed on the right side of the propulsion vertical plate, and the output shaft of the power motor movably penetrates the propulsion vertical plate, and the end of the output shaft of the power motor is fixedly connected to a power shaft, the power shaft extends to the interior of the inner pipe sleeve, and the left end of the power shaft is rotatably connected to the left wall of the drilling barrel, and the outer wall of the power shaft is fixedly installed with a plurality of active bevel gears equidistantly distributed on the left and right, the position of the active bevel gear corresponds to the position of the driven bevel gear, and the active bevel gear is meshed with the driven bevel gear.

[0008] As a preferred solution of the present invention, a sun gear is fixedly installed on the outer wall of the power shaft, a plurality of planetary brackets distributed at equal angles are fixedly installed on the left side of the thrust vertical plate, planetary gears are rotatably installed on the outer wall of the planetary bracket, and the planetary gears are all meshed with the sun gear, a fixed flange is fixedly installed on the right end of the outer wall of the inner sleeve, a large ring gear is fixedly installed on the right side of the fixed flange, the large ring gear is located on the periphery of the planetary gear, and the large ring gear is meshed with the planetary gear.

[0009] As a preferred solution of the present invention, guide holes are opened through the four corners of the left side of the thrust vertical plate, and the inner walls of the guide holes are slidably installed with light rods, and the light rods are fixedly installed between the two square vertical tubes located in the left and right directions, and an internal threaded seat is fixedly installed on the top of the thrust vertical plate, and the internal threads of the internal threaded seat are connected to a feed screw, and the feed screw is rotatably installed between the two left and right square horizontal bars.

[0010] As a preferred solution of the present invention, an adsorption shell is fixedly installed on the top of the base, and the adsorption shell is located at the bottom of the drilling tube. A collecting drawer is slidably installed inside the adsorption shell. A negative pressure suction pipe is fixedly provided on the top of the adsorption shell, and the negative pressure suction pipe is connected with the interior of the adsorption shell. A negative pressure fan is fixedly provided on the top of the adsorption shell, and the suction end of the negative pressure fan is connected with the interior of the adsorption shell. An air hole is penetrated through the bottom of the airtight adapter cover, and an air nozzle is fixedly installed on the bottom of the airtight adapter cover, and the air nozzle is located outside the opening of the air hole. The end of the negative pressure suction pipe away from the adsorption shell is fixedly connected to the bottom of the air nozzle.

[0011] As a preferred solution of the present invention, the adsorption component includes an adsorption groove fixedly mounted on the inner wall of the drilling barrel, the adsorption component also includes two push rods distributed on the left and right, the push rods movably penetrate the inner pipe sleeve and the adsorption groove, and the outer wall of the push rod is slidably connected to the through hole of the inner pipe sleeve, the push rod penetrates the inner wall and outer wall of the inner pipe sleeve, and the two push rods are commonly connected to a connecting plate at one end away from the inner pipe sleeve, the connecting plate is located inside the adsorption groove, and a side of the connecting plate away from the push rod is fixedly mounted with a plurality of blocking blocks equidistantly distributed on the left and right, the positions of the plurality of blocking blocks respectively correspond one by one to the positions of the plurality of adsorption holes, and two push cams distributed on the left and right are fixedly mounted on the outer wall of the power shaft, and the positions of the push cams correspond to the positions of the push rods.

[0012] As a preferred solution of the present invention, a drainage rod is fixedly installed on the middle part of a side surface of the blocking block away from the top rod, and the diameter of the drainage rod is smaller than the diameter of the drainage hole.

[0013] As a preferred solution of the present invention, a return spring is sleeved on the periphery of the push rod, and the return spring is fixedly installed between the adsorption groove and the connecting plate.

[0014] As a preferred solution of the present invention, a plurality of air guide holes are opened through the right side of the drilling barrel, and the positions of the plurality of air guide holes correspond one-to-one to the positions of the plurality of adsorption grooves, and a plurality of air guide tubes are fixedly installed on the right side of the drilling barrel, and the air guide tubes are located outside the openings of the air guide holes, and the air guide tubes are located inside the airtight adapter cover.

[0015] As a preferred solution of the present invention, a drill bit is fixedly installed on the left end of the drilling tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the side drilling unit is driven to operate together with the drilling component during the drilling process to bore the inner wall of the drilled hole, thereby greatly improving the drilling efficiency. In addition, the boring head in the side drilling unit also exerts an impact effect on the hole wall during the boring process, which is convenient for drilling some hard rock formations and greatly improves the drilling performance of the device. At the same time, since the device simultaneously bores the hole wall during the drilling process, the diameter of the drilled rock hole becomes larger, so that under the premise of drilling the same depth, the device can obtain more coal powder.

[0018] 2. In the present invention, the power shaft drives the push cam to rotate during its rotation. During the rotation of the push cam, its convex part will push the push rod and the connecting plate to move in the direction close to the inner wall of the drilling tube, causing the reset spring to be stretched and stored. The movement of the connecting plate will drive multiple blocking blocks and multiple drainage rods to move together to block the adsorption hole, so that under the continuous rotation of the push cam and the elastic reset action of the reset spring, the push rod drives the connecting plate, the drainage rod and the blocking block to swing back and forth, thereby intermittently blocking the adsorption hole, so that the coal powder sucked into the adsorption groove is sucked into the collecting bin as much as possible, thereby avoiding the accumulation of coal powder inside the adsorption groove, and when the blocking block drives the drainage rod to move in the direction close to the adsorption hole, the blocking block is inserted into the adsorption hole, which can push out some blocky coal slag adsorbed in the adsorption hole to prevent the adsorption hole from being blocked by the coal slag, so that the device can operate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the driving component and the drilling component in the present invention;

[0021] Figure 3 It is a partial cross-sectional structural schematic diagram of the drilling tube in the present invention;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0023] Figure 5 It is a schematic diagram of the front half-section structure of the drilling tube in the present invention;

[0024] Figure 6 It is a cross-sectional structural schematic diagram of the drilling tube and the airtight adapter cover in the present invention;

[0025] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of part B;

[0026] Figure 8 It is a structural schematic diagram of the side drilling unit in the present invention;

[0027] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of part C;

[0028] Fig.10 It is a schematic diagram of the expanded structure of the external spline plug shaft and the internal spline plug hole in the present invention;

[0029] Fig.11 It is a structural schematic diagram of the adsorption component in the present invention;

[0030] Fig.12 It is a structural schematic diagram of the drilling tube and the inner pipe sleeve in the present invention.

[0031] In the figure: 1, base; 2, square vertical tube; 3, square horizontal bar; 4, driving component; 401, push vertical plate; 402, airtight adapter cover; 4020, vent hole; 4021, air nozzle; 403, power motor; 404, power shaft; 405, active bevel gear; 406, push cam; 407, sun gear; 408, planetary bracket; 409, planetary gear; 4010, fixing flange; 4011, large gear ring; 4013, internal thread seat; 4014, feed screw; 4015, guide hole; 4016, polished rod; 501, drilling tube; 5011, clearance hole; 5012, suction Attached hole; 5013, air guide hole; 5014, air guide tube; 502, inner tube sleeve; 503, external spline shaft; 5031, boring tool holder; 5032, boring tool head; 5033, torque limiting shaft; 5034, internal spline socket; 5035, driven bevel gear; 5036, cylindrical cam; 5037, fixed disc; 5038, cam pin; 601, adsorption groove; 602, push rod; 603, connecting plate; 604, return spring; 605, blocking block; 606, drainage rod; 7, drill bit; 801, adsorption shell; 802, collection drawer; 803, negative pressure suction pipe; 804, negative pressure fan. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please refer to the attached Figures 1 to 12 The technical solution provided by the present invention specifically includes the following embodiments:

[0034] Embodiment 1:

[0035] An integrated equipment for prevention and assessment of rock burst in coal mines comprises a base 1, four square vertical tubes 2 are fixedly installed at the four corners of the top of the base 1, two square cross bars 3 distributed on the left and right are arranged on the top of the base 1, the square cross bars 3 are fixedly installed between the two square vertical tubes 2 located at the front and the back, and a driving component 4 is movably arranged on the top of the base 1;

[0036] The driving component 4 includes a propulsion vertical plate 401, an airtight adapter cover 402 is fixedly installed on the left side of the propulsion vertical plate 401, a drilling component is rotatably installed inside the airtight adapter cover 402, and the drilling component includes a drilling tube 501 rotatably installed on the inner wall of the airtight adapter cover 402, a plurality of clearance holes 5011 and a plurality of adsorption holes 5012 are opened on the outer wall of the drilling tube 501, an inner pipe sleeve 502 is fixedly installed in the middle of the left wall of the drilling tube 501, and the inner pipe sleeve 502 passes through the right side of the drilling tube 501. A plurality of side drilling units equidistantly distributed on the left and right are arranged inside, and the side drilling units include a plurality of external spline plug shafts 503 distributed at equal angles, and the external spline plug shafts 503 are rotatably mounted on the outer wall of the inner sleeve 502, and the external spline plug shafts 503 are movable through the inner wall and the outer wall of the inner sleeve 502, and a boring tool holder 5031 is movably arranged inside the clearance hole 5011, and the position of the boring tool holder 5031 corresponds to the position of the external spline plug shaft 503, and a boring tool holder 5031 is fixedly mounted on a side of the boring tool holder 5031 away from the external spline plug shaft 503 The boring tool head 5032 and the boring tool holder 5031 are fixedly installed with a limited torsion shaft 5033 in the middle of one side near the external spline plug shaft 503. The torsion shaft 5033 is provided with an inner spline plug hole 5034 at one end near the external spline plug shaft 503. The inner wall of the inner spline plug hole 5034 is slidably connected with the outer wall of the external spline plug shaft 503. The end of the external spline plug shaft 503 away from the torsion shaft 5033 is fixedly installed with a driven bevel gear 5035. The outer wall of the torsion shaft 5033 away from the boring tool head 5032 is fixedly installed with a The cylindrical cam 5036, the outer wall of the inner sleeve 502 is fixedly installed with a plurality of fixed discs 5037 distributed at equal distances on the left and right, and the right side of the fixed disc 5037 is fixedly installed with a plurality of cam pins 5038 distributed at equal angles, the position of the cam pins 5038 corresponds to the position of the cylindrical cam 5036, and the outer wall of the cam pins 5038 is slidably connected with the cam groove wall of the cylindrical cam 5036, the left end of the drilling tube 501 is fixedly installed with a drill bit 7, and the interior of the drilling tube 501 is provided with a plurality of adsorption components distributed at equal angles;

[0037] The driving component 4 also includes a power motor 403, which is fixedly installed on the right side of the propulsion vertical plate 401. The output shaft of the power motor 403 movably penetrates the propulsion vertical plate 401, and the end of the output shaft of the power motor 403 is fixedly connected with a power shaft rod 404, which extends to the inside of the inner pipe sleeve 502, and the left end of the power shaft rod 404 is rotatably connected to the left wall of the drilling tube 501. The outer wall of the power shaft rod 404 is fixedly installed with a plurality of active bevel gears 405 distributed at equal distances from left to right, and the position of the active bevel gear 405 corresponds to the position of the driven bevel gear 5035, and the active bevel gear 405 is meshed with the driven bevel gear 5035;

[0038] A sun gear 407 is fixedly mounted on the outer wall of the power shaft 404, a plurality of planetary brackets 408 with equal angles are fixedly mounted on the left side of the propulsion vertical plate 401, planetary gears 409 are rotatably mounted on the outer wall of the planetary bracket 408, and the planetary gears 409 are all meshed with the sun gear 407, a fixed flange 4010 is fixedly mounted on the right end of the outer wall of the inner pipe sleeve 502, a large gear ring 4011 is fixedly mounted on the right side of the fixed flange 4010, and the large gear ring 4011 is located on the periphery of the planetary gear 409, and the large gear ring 4011 is meshed with the planetary gear 409;

[0039] Guide holes 4015 are provided at the four corners of the left side of the push vertical plate 401, and a polished rod 4016 is slidably installed on the inner wall of the guide hole 4015. The polished rod 4016 is fixedly installed between the two square vertical tubes 2 located in the left and right directions. An internal thread seat 4013 is fixedly installed on the top of the push vertical plate 401. The internal thread of the internal thread seat 4013 is connected with a feed screw 4014. The feed screw 4014 is rotatably installed between the two square horizontal bars 3 on the left and right.

[0040] Specifically, the output shaft of the power motor 403 drives the power shaft 404 and the sun gear 407 to rotate, and the sun gear 407 rotates through multiple planetary gears 409 to drive the large gear ring 4011 and the fixed flange 4010 to rotate. The fixed flange 4010 rotates to drive the inner pipe sleeve 502 connected thereto to rotate, and the inner pipe sleeve 502 rotates to drive the drilling tube 501 to rotate together. During this period, the spiral thrust is generated by rotating the feed screw 4014 to push the internal thread seat 4013 to rotate. At the same time, the push plate 401 moves to the left. During the movement of the push plate 401 to the left, the sliding connection between the plurality of guide holes 4015 and the plurality of light rods 4016 can make the movement of the push plate 401 more stable. The push plate 401 moves to the left, driving the drilling tube 501 and the movable drill bit 7 to move to the left together to perform the drilling operation. At the same time, the power shaft 404 rotates to drive the plurality of active bevel gears 405 to rotate. The active bevel gear 405 rotates to drive the external spline plug shaft through the driven bevel gear 5035 503 rotates, and the external spline plug shaft 503 rotates to drive the boring tool holder 5031 and the boring tool head 5032 to rotate through the torque limiting shaft 5033, so as to bore the inner wall of the drilled hole, thereby greatly improving the drilling efficiency. In addition, during the rotation of the torque limiting shaft 5033, the cylindrical cam 5036 connected thereto is also driven to rotate together, and at the same time, the torque limiting shaft 5033 is affected by the cam groove of the cylindrical cam 5036 and the cam pin 5038, resulting in the torque limiting shaft 5033 rotating with the external spline plug shaft 503. It will also swing back and forth along the axial direction of the external spline shaft 503, further driving the boring tool holder 5031 and the boring head 5032 to swing together, so that the boring head 5032 can exert an impact effect on the hole wall during boring, which is convenient for drilling some hard rock formations and greatly improves the drilling performance of the device. At the same time, since the device simultaneously bores the hole wall during the drilling process, the diameter of the drilled rock hole becomes larger, so that under the premise of drilling to the same depth, the device can obtain more coal powder.

[0041] Embodiment 2:

[0042] An adsorption shell 801 is fixedly installed on the top of the base 1, and the adsorption shell 801 is located at the bottom of the drilling tube 501. A collection drawer 802 is slidably installed inside the adsorption shell 801. A negative pressure suction pipe 803 is fixedly installed on the top of the adsorption shell 801, and the negative pressure suction pipe 803 is connected to the inside of the adsorption shell 801. A negative pressure fan 804 is fixedly installed on the top of the adsorption shell 801, and the suction end of the negative pressure fan 804 is connected to the inside of the adsorption shell 801. A vent hole 4020 is opened through the bottom of the airtight adapter cover 402, and an air nozzle 4021 is fixedly installed on the bottom of the airtight adapter cover 402. The air nozzle 4021 is located outside the opening of the vent hole 4020, and one end of the negative pressure suction pipe 803 away from the adsorption shell 801 is fixedly connected to the bottom of the air nozzle 4021;

[0043] The adsorption component includes an adsorption tile groove 601 fixedly mounted on the inner wall of the drilling tube 501, a plurality of air guide holes 5013 are formed through the right side of the drilling tube 501, and the positions of the plurality of air guide holes 5013 correspond to the positions of the plurality of adsorption tile grooves 601 one by one, and a plurality of air guide tubes 5014 are fixedly mounted on the right side of the drilling tube 501, and the air guide tubes 5014 are located outside the openings of the air guide holes 5013, and the air guide tubes 5014 are located inside the airtight adapter cover 402;

[0044] Specifically, in this embodiment, negative pressure suction is generated by starting the negative pressure fan 804, resulting in negative pressure inside the adsorption shell 801, and then transmitted to the inside of the airtight adapter cover 402 through the negative pressure suction pipe 803, and then transmitted to the inside of the adsorption groove 601 through multiple air guide pipes 5014 and air guide holes 5013, resulting in negative pressure inside the adsorption groove 601, thereby sucking the coal powder generated by drilling into the inside of the adsorption groove 601 through the adsorption holes 5012, and then sucked into the inside of the collection drawer 802 through the air guide holes 5013, the air guide pipe 5014, the airtight adapter cover 402 and the negative pressure suction pipe 803 for collection. After the collection is completed, the inspector can take out the collected coal powder by opening the collection drawer 802 for inspection and evaluation.

[0045] Embodiment three:

[0046] The adsorption component also includes two left and right distributed push rods 602, the push rods 602 movably penetrate the inner tube sleeve 502 and the adsorption groove 601, and the outer wall of the push rod 602 is slidably connected to the through hole of the inner tube sleeve 502, the push rod 602 penetrates the inner wall and the outer wall of the inner tube sleeve 502, and the ends of the two push rods 602 away from the inner tube sleeve 502 are commonly connected to a connecting plate 603, the connecting plate 603 is located inside the adsorption groove 601, and a side of the connecting plate 603 away from the push rod 602 is fixedly installed with a plurality of left and right equidistantly distributed blocking blocks 605, and the positions of the plurality of blocking blocks 605 correspond to the positions of the plurality of adsorption holes 5012 respectively. Two left and right distributed push cams 406 are fixedly installed on the outer wall of the power shaft 404, and the positions of the push cams 406 correspond to the positions of the push rods 602;

[0047] A drainage rod 606 is fixedly installed in the middle of a side surface of the blocking block 605 away from the top rod 602, and the diameter of the drainage rod 606 is smaller than the diameter of the drainage hole 5012;

[0048] Specifically, in this embodiment, the power shaft 404 drives the push cam 406 to rotate during the rotation. During the rotation of the push cam 406, its raised portion pushes the push rod 602 and the connecting plate 603 to move toward the inner wall of the drilling tube 501, causing the reset spring 604 to be stretched and stored. The movement of the connecting plate 603 drives the multiple blocking blocks 605 and the multiple drainage rods 606 to move together to block the adsorption hole 5012, so that under the continuous rotation of the push cam 406 and the elastic reset of the reset spring 604, the push rod 602 drives the connecting plate 603, the guiding rod 606 and the blocking block 605 swing back and forth, thereby intermittently blocking the adsorption hole 5012, so that the coal powder sucked into the adsorption groove 601 is sucked into the collecting bin 802 as much as possible, thereby avoiding the accumulation of coal powder inside the adsorption groove 601, and when the blocking block 605 drives the guiding rod 606 to move in the direction close to the adsorption hole 5012, the blocking block 605 is inserted into the adsorption hole 5012, which can push out some blocky coal slag adsorbed in the adsorption hole 5012, prevent the adsorption hole 5012 from being blocked by the coal slag, and enable the device to operate stably.

[0049] In the present scheme, when the integrated equipment for preventing and evaluating rock burst in coal mines is working, the power motor 403 is started, and the power shaft 404 and the sun gear 407 are driven to rotate through the output shaft of the power motor 403. The sun gear 407 rotates through a plurality of planetary gears 409 to drive the large gear ring 4011 and the fixed flange 4010 to rotate. The fixed flange 4010 rotates to drive the inner sleeve 502 connected thereto to rotate. The inner sleeve 502 rotates to drive the drilling tube 501 to rotate together. During this period, the feed screw 40 is rotated. 14 generates a spiral thrust, pushing the internal thread seat 4013 and the push vertical plate 401 to move leftward. During the movement of the push vertical plate 401 to the left, the sliding connection between the plurality of guide holes 4015 and the plurality of light rods 4016 can make the movement of the push vertical plate 401 more stable. The leftward movement of the push vertical plate 401 drives the drilling tube 501 and the movable drill bit 7 to move leftward together to perform the drilling operation. At the same time, the rotation of the power shaft 404 drives the rotation of the plurality of active bevel gears 405. The active bevel gears 405 rotate through the driven The bevel gear 5035 drives the external spline shaft 503 to rotate. The rotation of the external spline shaft 503 drives the boring tool holder 5031 and the boring tool head 5032 to rotate through the torque limiting shaft 5033, so as to bore the inner wall of the drilled hole. The drilling efficiency is greatly improved. During the rotation of the torque limiting shaft 5033, the cylindrical cam 5036 connected thereto is also driven to rotate together. At the same time, the torque limiting shaft 5033 is affected by the cam groove of the cylindrical cam 5036 and the cam pin 5038, resulting in the torque limiting shaft 5033 rotating along with the external spline shaft 5033. During the rotation, the outer spline shaft 503 will also swing back and forth along the axial direction, further driving the boring tool holder 5031 and the boring tool head 5032 to swing together, so that the boring tool head 5032 can exert an impact effect on the hole wall during the boring process, which is convenient for drilling some hard rock formations and greatly improves the drilling performance of the device. At the same time, since the device simultaneously bores the hole wall during the drilling process, the diameter of the rock hole drilled becomes larger, so that under the premise of drilling the same depth, the device can obtain more coal powder;

[0050] At the same time, the negative pressure fan 804 is started to generate negative pressure suction, resulting in negative pressure inside the adsorption shell 801, and then transmitted to the inside of the airtight adapter cover 402 through the negative pressure suction pipe 803, and then transmitted to the inside of the adsorption groove 601 through multiple air guide pipes 5014 and air guide holes 5013, resulting in negative pressure inside the adsorption groove 601, so that the coal powder generated by the drilling hole is sucked into the inside of the adsorption groove 601 through the adsorption holes 5012, and then sucked into the inside of the collection drawer 802 through the air guide holes 5013, the air guide pipe 5014, the airtight adapter cover 402 and the negative pressure suction pipe 803 for collection. After the collection is completed, the inspector can take out the collected coal powder by opening the collection drawer 802 for inspection and evaluation;

[0051] During the rotation of the power shaft 404, the push cam 406 is also driven to rotate together. During the rotation of the push cam 406, the convex part thereof pushes the push rod 602 and the connecting plate 603 to move toward the inner wall of the drilling tube 501, causing the reset spring 604 to be stretched and stored. The movement of the connecting plate 603 drives the plurality of blocking blocks 605 and the plurality of dredging rods 606 to move together to block the adsorption hole 5012, so that under the continuous rotation of the push cam 406 and the elastic reset of the reset spring 604, the push rod 602 drives the connecting plate 603, the dredging rod 606 and the connecting plate 603 to move toward the inner wall of the drilling tube 501. The guide rod 606 and the blocking block 605 swing back and forth, thereby intermittently blocking the adsorption hole 5012, so that the coal powder sucked into the adsorption groove 601 can be sucked into the collecting bin 802 as much as possible, thereby avoiding the accumulation of coal powder inside the adsorption groove 601, and when the blocking block 605 drives the guide rod 606 to move toward the adsorption hole 5012, the blocking block 605 is inserted into the adsorption hole 5012, which can push out some blocky coal slag adsorbed inside the adsorption hole 5012, prevent the adsorption hole 5012 from being blocked by coal slag, and enable the device to operate stably.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated equipment for prevention and assessment of rock burst in coal mines, characterized by: The base (1) comprises a base, wherein four square vertical tubes (2) are fixedly mounted at the four corners of the top of the base (1), two square horizontal bars (3) are arranged on the top of the base (1) and are distributed on the left and right, and the square horizontal bars (3) are fixedly mounted between the two square vertical tubes (2) located at the front and rear, and a driving component (4) is movably mounted on the top of the base (1); The driving component (4) comprises a propulsion vertical plate (401), an airtight adapter cover (402) is fixedly mounted on the left side of the propulsion vertical plate (401), a drilling component is rotatably mounted inside the airtight adapter cover (402), the drilling component comprises a drilling tube (501) rotatably mounted on the inner wall of the airtight adapter cover (402), a plurality of clearance holes (5011) and a plurality of adsorption holes (5012) are formed on the outer wall of the drilling tube (501), an inner pipe sleeve (502) is fixedly mounted on the middle part of the left wall of the drilling tube (501), and the inner pipe sleeve (502) passes through the right side of the drilling tube (501). The drilling tube (501) is provided with a plurality of side drilling units equidistantly distributed on the left and right sides, and the side drilling units include a plurality of external spline plug shafts (503) distributed at equal angles, the external spline plug shafts (503) are rotatably mounted on the outer wall of the inner tube sleeve (502), and the external spline plug shafts (503) movably penetrate the inner wall and the outer wall of the inner tube sleeve (502), and a boring tool holder (5031) is movably provided inside the clearance hole (5011), the position of the boring tool holder (5031) corresponds to the position of the external spline plug shaft (503), and the boring tool holder (5031) is away from the external spline plug shaft A boring tool head (5032) is fixedly installed on one side of the outer spline shaft (503); a torsion limiting shaft rod (5033) is fixedly installed on the middle part of a side of the boring tool holder (5031) close to the outer spline shaft (503); an inner spline plug hole (5034) is provided on one end of the torsion limiting shaft rod (5033) close to the outer spline shaft (503); the inner wall of the inner spline plug hole (5034) is slidably connected to the outer wall of the outer spline shaft (503); a driven bevel gear (5035) is fixedly installed on one end of the outer spline shaft (503) away from the torsion limiting shaft rod (5033); the outer wall of the torsion limiting shaft rod (5033) is fixedly installed with a driven bevel gear (5035); A cylindrical cam (5036) is fixedly mounted on one end of the wall away from the boring cutter head (5032); a plurality of fixed discs (5037) equidistantly distributed on the left and right are fixedly mounted on the outer wall of the inner tube sleeve (502); a plurality of cam pins (5038) equiangularly distributed are fixedly mounted on the right side of each of the fixed discs (5037); the positions of the cam pins (5038) correspond to the positions of the cylindrical cam (5036); the outer walls of the cam pins (5038) are slidably connected to the cam groove walls of the cylindrical cam (5036); and a plurality of adsorption components equiangularly distributed are provided inside the drilling tube (501).

2. The integrated equipment for preventing and evaluating coal mine rock burst according to claim 1, characterized in that: The driving component (4) further comprises a power motor (403), wherein the power motor (403) is fixedly mounted on the right side of the propulsion vertical plate (401), an output shaft of the power motor (403) movably penetrates the propulsion vertical plate (401), and a power shaft (404) is fixedly connected to the end of the output shaft of the power motor (403), wherein the power shaft (404) extends into the interior of the inner sleeve (502), and the left end of the power shaft (404) is rotatably connected to the left wall of the drilling tube (501), and a plurality of active bevel gears (405) equidistantly distributed on the left and right sides are fixedly mounted on the outer wall of the power shaft (404), the position of the active bevel gear (405) corresponds to the position of the driven bevel gear (5035), and the active bevel gear (405) is meshed with the driven bevel gear (5035).

3. The integrated equipment for coal mine rock burst prevention and assessment according to claim 2, characterized in that: A sun gear (407) is fixedly mounted on the outer wall of the power shaft (404); a plurality of planetary brackets (408) distributed at equal angles are fixedly mounted on the left side of the propulsion vertical plate (401); planetary gears (409) are rotatably mounted on the outer wall of the planetary bracket (408); the planetary gears (409) are all meshed with the sun gear (407); a fixing flange (4010) is fixedly mounted on the right end of the outer wall of the inner sleeve (502); a large gear ring (4011) is fixedly mounted on the right side of the fixing flange (4010); the large gear ring (4011) is located on the periphery of the planetary gears (409), and the large gear ring (4011) is meshed with the planetary gears (409).

4. The integrated equipment for coal mine rock burst prevention and assessment according to claim 3 is characterized by: Guide holes (4015) are provided at the four corners of the left side of the advancement vertical plate (401), and a light rod (4016) is slidably mounted on the inner wall of the guide hole (4015). The light rod (4016) is fixedly mounted between the two square vertical tubes (2) located in the left and right directions. An internal thread seat (4013) is fixedly mounted on the top of the advancement vertical plate (401), and the internal thread of the internal thread seat (4013) is connected to a feed screw rod (4014). The feed screw rod (4014) is rotatably mounted between the two left and right square horizontal rods (3).

5. The integrated equipment for coal mine rock burst prevention and assessment according to claim 4, characterized in that: An adsorption shell (801) is fixedly mounted on the top of the base (1), the adsorption shell (801) is located at the bottom of the drilling tube (501), a collecting drawer (802) is slidably mounted inside the adsorption shell (801), a negative pressure suction pipe (803) is fixedly mounted on the top of the adsorption shell (801), the negative pressure suction pipe (803) is connected to the inside of the adsorption shell (801), and a negative pressure fan (804) is fixedly mounted on the top of the adsorption shell (801). The suction end of the negative pressure fan (804) is connected to the interior of the adsorption shell (801), a vent hole (4020) is provided through the bottom of the airtight adapter cover (402), an air nozzle (4021) is fixedly installed on the bottom of the airtight adapter cover (402), and the air nozzle (4021) is located outside the opening of the vent hole (4020), and one end of the negative pressure suction pipe (803) away from the adsorption shell (801) is fixedly connected to the bottom of the air nozzle (4021).

6. The integrated equipment for coal mine rock burst prevention and assessment according to claim 5, characterized in that: The adsorption component comprises an adsorption groove (601) fixedly mounted on the inner wall of the drilling tube (501), and the adsorption component further comprises two mandrels (602) distributed on the left and right, the mandrels (602) movably penetrate the inner tube sleeve (502) and the adsorption groove (601), and the outer wall of the mandrel (602) is slidably connected to the through hole of the inner tube sleeve (502), the mandrel (602) penetrates the inner wall and the outer wall of the inner tube sleeve (502), and the ends of the two mandrels (602) away from the inner tube sleeve (502) are commonly connected to a connecting rod. A connecting plate (603) is located inside the adsorption groove (601); a side of the connecting plate (603) away from the push rod (602) is fixedly mounted with a plurality of blocking blocks (605) equidistantly distributed on the left and right; the positions of the plurality of blocking blocks (605) correspond one-to-one to the positions of the plurality of adsorption holes (5012); and two push-up cams (406) distributed on the left and right are fixedly mounted on the outer wall of the power shaft (404); the position of the push-up cams (406) corresponds to the position of the push rod (602).

7. The integrated equipment for prevention and assessment of rock burst in coal mines according to claim 6, characterized in that: A drainage rod (606) is fixedly mounted on the middle of a side surface of the blocking block (605) away from the top rod (602), and the diameter of the drainage rod (606) is smaller than the diameter of the drainage hole (5012).

8. The integrated equipment for prevention and assessment of rock burst in coal mines according to claim 7, characterized in that: The outer periphery of the push rod (602) is sleeved with a return spring (604), and the return spring (604) is fixedly installed between the adsorption groove (601) and the connecting plate (603).

9. The integrated equipment for prevention and assessment of rock burst in coal mines according to claim 8, characterized in that: A plurality of air guide holes (5013) are formed through the right side surface of the drilling tube (501), and the positions of the plurality of air guide holes (5013) correspond one-to-one to the positions of the plurality of adsorption tile grooves (601). A plurality of air guide tubes (5014) are fixedly mounted on the right side surface of the drilling tube (501), and the air guide tubes (5014) are located outside the openings of the air guide holes (5013), and the air guide tubes (5014) are located inside the airtight adapter cover (402).

10. The integrated equipment for coal mine rock burst prevention and assessment according to claim 1, characterized in that: A drill bit (7) is fixedly mounted on the left end of the drilling tube (501).

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