A grouting device for preventing and treating mine water disasters

Abstract

The present application relates to the technical fields of mine water disaster prevention, and discloses a mine water disaster prevention grouting device, which comprises a grouting and reinforcing integrated drilling machine, a grouting machine and a stirring barrel, the side wall of the stirring barrel is connected with a support plate through a hydraulic telescopic assembly, a first bevel gear is rotatably arranged in the middle part of the support plate, and the first bevel gear is drivingly connected with a driving motor through a reversing assembly; the inner side wall of the first bevel gear is connected with a hollow stirring rod with a clamping groove arranged in the circumferential wall through a hydraulic chuck, and the circumferential wall of the hollow stirring rod is provided with a plurality of telescopic rotating assemblies which are driven by hydraulic oil in cavities, the present application is characterized in that the mutual cooperation among the adjusting assembly, the reversing assembly and the hydraulic chuck can make the scraper scrape the liquid on the top of the slurry into the slurry, so that the cleaning can be performed according to the descending speed of the slurry in the stirring barrel, the cleaning can be performed after the filling is completed, and the solidification of the slurry adhered to the inner wall of the stirring barrel after long-time filling can be avoided.

Description

Technical Field

[0001] This invention relates to the field of mining water hazard prevention and control technology, and in particular to a grouting device for mining water hazard prevention and control. Background Technology

[0002] Coal mine water hazards affect the progress and quality of mine construction, worsen the working environment for workers, increase drainage facilities and costs, and introduce unsafe factors into coal mine production. In severe cases, they can even lead to mine flooding accidents, causing significant losses of life and property. During coal mining, water can easily accumulate in old mine shafts, causing mine flooding accidents. Coal mine water hazard accidents can also lead to the erosion and weakening of surrounding rock, induce secondary disasters, damage water resources, reduce the recoverability of resources, and keep the drainage cost per ton of coal high. my country's coalfields have complex hydrogeological conditions, and currently about 18% of my country's unexploited coal reserves are under serious threat from water hazards. Therefore, prevention and control work is of great and urgent practical significance.

[0003] Existing methods for preventing and controlling water hazards in mining often involve grouting. Grouting technology uses hydraulic or pneumatic pressure to inject solidifiable grout at a designed concentration through specially designed grouting boreholes into the specified rock and soil layers to fill cracks or pores in the rock and soil mass. The aim is to improve the physical and mechanical properties of the grouting object to meet the needs of various engineering projects.

[0004] The existing grouting equipment requires the mixing tank to be repeatedly rotated forward and backward, which shortens the lifespan of the motor. In addition, the existing mixing tank does not have a self-cleaning function.

[0005] Therefore, it is necessary to invent a grouting device for preventing water hazards in mining to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a grouting device for preventing water hazards in mining, so as to solve the problems of reduced motor lifespan and the lack of self-cleaning function in existing mixing tanks.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a grouting device for mine water hazard prevention, comprising an integrated grouting and reinforcement drilling rig, a grouting machine, and a mixing tank. A support plate is connected to the side wall of the mixing tank via a hydraulic telescopic assembly. A first bevel gear is rotatably mounted in the center of the support plate. The first bevel gear is connected to a drive motor via a reversing assembly. A hollow mixing rod with a groove on its circumferential sidewall is clamped to the inner sidewall of the first bevel gear via a hydraulic chuck. Multiple telescopic rotating assemblies driven by hydraulic oil within the cavities are mounted on the circumferential sidewall of the hollow mixing rod. A scraper is mounted at the end of the telescopic rotating assembly away from the hollow mixing rod. A piston that pushes the chuck teeth to move is mounted inside the hydraulic chuck. The cavities on both sides of the piston are connected to a hydraulic system. Multiple sliding rods penetrating the hydraulic chuck are arranged in a circular array on the side of the piston away from the chuck teeth. The ends of the multiple sliding rods located outside the hydraulic chuck are connected to the same adjusting assembly. The adjusting assembly is used to adjust the telescopic rotation of the telescopic rotating assembly and the reversing of the reversing assembly.

[0008] As a preferred technical solution of the present invention, the reversing assembly includes a rotating shaft disposed on the top of the support plate and driven to rotate by a drive motor. The rotating shaft has a sliding sleeve with toothed grooves at both ends that slides at the upper limit. Two guide disks are symmetrically fixed on the outer side wall of the sliding sleeve. The two ends of the rotating shaft are symmetrically rotatably provided with second bevel gears that mesh with the first bevel gear. The two second bevel gears are provided with mating sleeves that engage with the toothed grooves on the sliding sleeves on their respective sides. A return spring is provided between the sliding sleeve and the mating sleeve.

[0009] As a preferred embodiment of the present invention, the adjusting assembly includes a fixed disk connected to a slide rod, a hollow hydraulic oil push rod connected to the side of the fixed disk away from the slide rod and communicating with the cavity of the hollow stirring rod, a hydraulic cylinder connected to a support plate being sleeved on the hollow hydraulic oil push rod, a rotating disk being rotatably connected to the top of the fixed disk, a permanent magnet being provided on the side of the fixed disk that abuts against the rotating disk, an arc-shaped extrusion plate cooperating with a guide disk being provided on the peripheral wall of the rotating disk, a connecting rod being rotatably provided on the peripheral wall of the rotating disk through a locking assembly, and the other end of the connecting rod being connected to the support plate through a spring contraction cylinder.

[0010] As a preferred embodiment of the present invention, the telescopic rotating assembly includes an outer sleeve communicating with the cavity of the hollow stirring rod, an inner sleeve rod slidably disposed inside the outer sleeve, a receiving groove formed on the inner wall of the outer sleeve, a guide post disposed on the peripheral side wall of the inner sleeve rod, a horizontal groove cooperating with the guide post formed on the inner wall of the receiving groove, a one-eighth turn spiral groove formed at the end of the horizontal groove away from the hollow stirring rod, and a compression spring disposed between the guide post and the inner wall of the receiving groove.

[0011] As a preferred embodiment of the present invention, the bottom of the mixing tank is provided with a suction port connected to the grouting machine suction pipe, and a protective cover is provided at the suction port.

[0012] As a preferred technical solution of the present invention, a movable component is provided at the bottom of the mixing tank, the movable component includes a support base, and the bottom of the support base is provided with movable wheels.

[0013] As a preferred technical solution of the present invention, the grouting and reinforcement integrated drilling rig includes a bearing platform, a tracked moving mechanism is provided at the bottom of the bearing platform, a motor is provided at the top of the bearing platform, the output shaft of the motor is connected to a gearbox, the output shaft of the gearbox extends to the outside of the gearbox, a turntable is provided outside the gearbox and is rotatably connected to the gearbox, the turntable and the gearbox are limited by a limiting pin, and a hollow cylinder is fixedly connected to the side of the turntable away from the gearbox.

[0014] As a preferred technical solution of the present invention, a bevel gear pair connected to the output shaft of the gearbox is provided inside the hollow cylinder, a hollow hydraulic chuck is provided at the top of the hollow cylinder, a hydraulic telescopic rod is provided at the bottom of the hollow cylinder, the telescopic end of the hydraulic telescopic rod passes through the hollow cylinder and is connected to the hollow hydraulic chuck, a hollow drill rod with a limit groove opened on the peripheral side wall is engaged inside the hollow hydraulic chuck, the top of the hollow drill rod is connected to the grout outlet pipe of the grouting machine, and a drill bit is provided at the bottom of the hollow drill rod.

[0015] As a preferred technical solution of the present invention, the scraper includes a long strip connected to one end of the inner sleeve rod located outside the outer sleeve tube, and an arc-shaped part is provided at the end of the long strip rod away from the inner sleeve rod. The arc-shaped part is completely in contact with the inner wall of the mixing tank when the inner sleeve rod rotates forty-five degrees.

[0016] As a preferred technical solution of the present invention, the hydraulic chuck includes a body, the top of the body is circumferentially arrayed with a plurality of slidingly connected teeth, the bottom of the body has a cylindrical cavity, the top of the body has an annular piston cavity, the annular piston cavity and the cylindrical cavity are connected through the annular cavity, a piston is provided in the annular piston cavity, a hollow piston rod is provided on the side of the piston near the cylindrical cavity and is slidably sealed to the annular cavity with one end located in the annular cavity, a connecting rod is hinged to the bottom of the hollow piston rod, the other end of the connecting rod is hinged to the teeth, two hollow rings are rotatably sleeved on the outside of the body, one of the hollow rings is connected to the cavity at the top of the piston, and the other hollow ring is connected to the cavity at the bottom of the piston, both of the hollow rings are connected to the hydraulic system.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] 1. This invention, through the cooperation between the adjustment component, the reversing component, and the hydraulic chuck, enables the scraper to scrape the liquid at the top of the slurry into the slurry, thereby cleaning it as the slurry in the mixing tank descends. It eliminates the need to clean it only after filling, thus avoiding the situation where the slurry adhering to the inner wall of the mixing tank solidifies after a long period of filling.

[0019] 2. This invention, through the cooperation between the adjustment component, the reversing component, and the hydraulic chuck, enables the hydraulic chuck to adjust the reversing component via the adjustment component, thus completing forward and reverse rotation without the need to control the drive motor for repeated forward and reverse rotation, thereby extending its service life.

[0020] 3. The present invention, through the cooperation between the adjusting component, the reversing component and the hydraulic chuck, firstly enables the hollow stirring rod to perform multi-angle stirring, thereby improving the stirring efficiency and effect; secondly, the hydraulic chuck enables the hollow stirring rod to be quickly disassembled for repair or replacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the integrated grouting and reinforcement drilling rig structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the mixing tank structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the mixing tank of the present invention;

[0025] Figure 5 This is a schematic diagram of the commutation component structure of the present invention;

[0026] Figure 6 This is a schematic diagram showing the connection between the reversing component and the first bevel gear structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the guide disk structure connection of the present invention;

[0028] Figure 8 This is a three-dimensional sectional view of the hydraulic chuck of the present invention;

[0029] Figure 9 This is a schematic diagram showing the connection between the guide disc and the adjustment component of the present invention;

[0030] Figure 10 This is a schematic diagram showing the connection between the slide bar and the adjustment assembly of the present invention;

[0031] Figure 11 This is a schematic diagram of the rotating disk structure of the present invention;

[0032] Figure 12 This is a schematic diagram showing the connection between the rotating disk and the locking assembly of the present invention;

[0033] Figure 13 This is a cross-sectional view of the telescopic rotating component of the present invention;

[0034] Figure 14 This is an enlarged view of the internal structure of the telescopic rotating component of the present invention.

[0035] In the diagram: 1. Grouting and reinforcement integrated drilling rig; 101. Bearing platform; 102. Tracked movement mechanism; 103. Gearbox; 104. Turntable; 105. Hollow cylinder; 106. Hollow hydraulic chuck; 107. Hydraulic telescopic rod; 108. Hollow drill rod; 2. Grouting machine; 3. Mixing tank; 4. Hydraulic telescopic assembly; 5. Support plate; 6. First bevel gear; 7. Reversing assembly; 701. Rotating shaft; 702. Gear groove; 703. Sliding sleeve; 704. Guide plate; 705. Second bevel gear; 706. Connecting sleeve; 8. Drive motor; 9. Hydraulic chuck; 901. Body; 902. Chesing tooth; 903. Cylindrical cavity; 904. Annular piston cavity; 905. Circular cavity; 906. Piston; 907. Hollow piston rod; 908. Connecting rod; 909. Hollow ring; 10. Hollow stirring rod; 11. Telescopic rotating assembly; 1101. Outer sleeve; 1102. Inner sleeve rod; 1103. Receiving groove; 1104. Guide column; 1105. Horizontal groove; 1106. Spiral groove; 12. Scraper; 1201. Long strip; 1202. Arc-shaped part; 13. Slide rod; 14. Adjusting assembly; 1401. Fixed plate; 1402. Hydraulic cylinder; 1403. Rotating plate; 1404. Arc-shaped extrusion plate; 1405. Connecting rod; 1406. Spring contraction cylinder; 15. Locking assembly; 16. Moving assembly. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention provides, for example Figures 1 to 14The invention discloses a grouting device for preventing water hazards in mining, comprising an integrated grouting and reinforcement drilling rig 1, a grouting machine 2, and a mixing tank 3. A support plate 5 is connected to the side wall of the mixing tank 3 via a hydraulic telescopic assembly 4. The support plate 5 supports the drive motor 8 and a reversing assembly 7. A first bevel gear 6 is rotatably mounted in the center of the support plate 5, and the first bevel gear 6 is connected to the drive motor 8 via the reversing assembly 7. The invention controls the reversing assembly 7 to rotate the first bevel gear 6 in both directions. A hollow mixing rod 10 with a groove on its circumferential sidewall is engaged with the inner side wall of the first bevel gear 6 via a hydraulic chuck 9. Rotation of the first bevel gear 6 drives the hydraulic chuck 9 to rotate. The rotation of the hydraulic chuck 9 drives the hollow stirring rod 10 to rotate in both directions, thereby achieving the purpose of stirring the slurry. The hollow stirring rod 10 has multiple telescopic rotating components 11 driven by hydraulic oil within its cavity on its peripheral sidewalls. The rotation of the hollow stirring rod 10 synchronously drives the telescopic rotating components 11 to rotate. A scraper 12 is provided at the end of each telescopic rotating component 11 away from the hollow stirring rod 10. The rotation of the telescopic rotating component 11 synchronously drives the scraper 12 to rotate. Simultaneously, by controlling the hydraulic oil within the cavity of the hollow stirring rod 10, the telescopic rotating components 11 are pushed to extend and rotate around their axis. The telescopic rotation will simultaneously drive the scraper 12 to telescopically rotate, on the one hand to stir the slurry in multiple directions, and on the other hand to allow the scraper 12 to abut against the inner wall of the mixing tank 3, so that the inner wall of the mixing tank 3 can be cleaned by the scraper 12; the hydraulic chuck 9 is equipped with a piston 906 that pushes the chuck teeth 902 to move. In this invention, by setting the piston 906, under the action of the hydraulic oil in the hydraulic chuck 9, the piston 906 will be pushed to slide. The sliding of the piston 906 will, on the one hand, drive the chuck teeth 902 to retract and lock into the groove on the side wall of the hollow mixing rod 10, thereby driving the hollow mixing rod 10 to rotate; on the other hand, it will synchronously drive the slide rod 13 to move, and on the third hand... Due to the rotation of the hydraulic chuck 9, the rotation of the hydraulic chuck 9 will drive the slide rod 13 to rotate, so that the slide rod 13 moves and rotates around the axis of the hollow stirring rod 10. The cavities on both sides of the piston 906 in the hydraulic chuck 9 are connected to the hydraulic system. On the side of the piston 906 away from the chuck tooth 902, there are multiple slide rods 13 arranged in a circumferential array that penetrate the hydraulic chuck 9. The ends of the multiple slide rods 13 located outside the hydraulic chuck 9 are connected to the same adjustment component 14. The sliding and rotating of the slide rods 13 will drive the adjustment component 14 to make adjustments. The adjustment component 14 is used to adjust the extension and rotation of the telescopic rotation component 11 and the reversing of the reversing component 7.

[0038] The reversing assembly 7 includes a rotating shaft 701 mounted on the top of the support plate 5 and driven to rotate by a drive motor 8. The rotation of the drive motor 8 causes the rotating shaft 701 to rotate. The rotating shaft 701 has a sliding sleeve 703 with toothed grooves 702 at both ends that slides at the upper limit. Due to the limiting sliding connection, the rotation of the rotating shaft 701 synchronously drives the sliding sleeve 703 to rotate. Two guide discs 704 are symmetrically fixed on the outer wall of the sliding sleeve 703. The rotating shaft 701 has symmetrically rotating second bevel gears 705 at both ends, each meshing with a first bevel gear 6. Each of the two second bevel gears 705 has a mating sleeve 706 on one side that engages with the toothed grooves 702 on the sliding sleeve 703. A return spring is provided between the sliding sleeve 703 and the mating sleeve 706. The present invention will push the adjustment assembly 14... The sliding sleeve 703 engages with and is locked in place with one of the mating sleeves 706, thereby causing the sliding sleeve 703 to rotate and drive one of the mating sleeves 706 to rotate. The rotation of one of the mating sleeves 706 will drive one of the second bevel gears 705 to rotate, and then the second bevel gear 705 will cause the first bevel gear 6 to rotate forward. When the adjusting component 14 pushes the sliding sleeve 703 to engage with and be locked in place with the other mating sleeve 706, the sliding sleeve 703 will rotate and drive the other mating sleeve 706 to rotate. The rotation of the other mating sleeve 706 will drive the other second bevel gear 705 to rotate, and then the other second bevel gear 705 will cause the first bevel gear 6 to rotate in reverse. This achieves rapid switching between forward and reverse rotation of the first bevel gear 6 without the need to control the drive motor 8 to perform forward and reverse rotation.

[0039] Adjustment assembly 14 includes a fixed disk 1401 connected to slide rod 13. Sliding and rotating slide rod 13 will drive fixed disk 1401 to slide and rotate. A hollow hydraulic oil push rod communicating with the cavity of hollow stirring rod 10 is connected to the side of fixed disk 1401 away from slide rod 13. Sliding and rotating fixed disk 1401 will push hollow hydraulic oil push rod to slide and rotate. A hydraulic cylinder 1402 connected to support plate 5 is sleeved on hollow hydraulic oil push rod. Sliding and rotating hollow hydraulic oil push rod will push hydraulic cylinder 1402 to slide and rotate. Hydraulic oil in cylinder 1402 enters the hollow stirring rod 10, which in turn drives the hydraulic cylinder 1402 to rotate. A rotating disk 1403 is rotatably connected to the top of the fixed disk 1401. A permanent magnet is provided on the side of the fixed disk 1401 that abuts against the rotating disk 1403. When the locking assembly 15 is locked, the sliding of the fixed disk 1401 will push the rotating disk 1403 to slide. An arc-shaped extrusion plate 1404 is provided on the peripheral wall of the rotating disk 1403, which cooperates with the guide disk 704. The sliding of the rotating disk 1403 will push the arc-shaped extrusion plate 1404 to slide. 4. The sliding mechanism presses against the guide plate 704, causing the guide plate 704 to slide and engage with the sliding sleeve 703. A connecting rod 1405 is rotatably mounted on the peripheral wall of the rotating disk 1403 via the locking assembly 15. When the locking assembly 15 is locked, the rotating disk 1403 is locked to the connecting rod 1405, thus keeping the arc-shaped pressing plate 1404 on the rotating disk 1403 in a position engaging with a certain guide plate 704. When the locking assembly 15 is unlocked, the rotating disk 1403 and the connecting rod 1405 are locked together. 05. Unlocking allows the rotating disk 1403 to rotate. When the locking assembly 15 is unlocked, the fixed disk 1401 rotates and drives the rotating disk 1403 to rotate through the magnetic attraction of the permanent magnet. The rotation of the rotating disk 1403 will drive the arc-shaped extrusion plate 1404 to rotate, thereby enabling the arc-shaped extrusion plate 1404 to rotate to a position that cooperates with another guide disk 704. The other end of the connecting rod 1405 is connected to the support plate 5 through the spring contraction cylinder 1406. The sliding of the rotating disk 1403 will push the spring contraction cylinder 1406 to be stretched.

[0040] The locking assembly 15 includes an electromagnetic pin disposed in the connecting rod 1405 and insertion holes arranged in a circumferential array on the side wall of the rotating disk 1403. By controlling the extension and retraction of the electromagnetic pin, the rotating disk 1403 and the connecting rod 1405 can be locked and unlocked.

[0041] The telescopic rotating assembly 11 includes an outer sleeve 1101 communicating with the cavity of the hollow stirring rod 10. An inner sleeve rod 1102 is slidably disposed inside the outer sleeve 1101. A receiving groove 1103 is formed on the inner wall of the outer sleeve 1101. Hydraulic oil pushes the inner sleeve rod 1102 to slide. A guide post 1104 is provided on the peripheral side wall of the inner sleeve rod 1102. After overcoming the elastic force of the compression spring, the inner sleeve rod 1102 slides and drives the guide post 1104 to slide. A water container that cooperates with the guide post 1104 is provided on the inner wall of the receiving groove 1103. The horizontal groove 1105 has an eighth-turn spiral groove 1106 at one end away from the hollow stirring rod 10. A compression spring is provided between the guide column 1104 and the inner wall of the receiving groove 1103. The guide column 1104 slides first along the horizontal groove 1105, causing the inner sleeve rod 1102 to slide out horizontally and drive the scraper 12 to slide out. Then it slides along the spiral groove 1106, causing the inner sleeve rod 1102 to rotate and drive the scraper 12 to rotate, thereby causing the scraper 12 to rotate forty-five degrees.

[0042] The bottom of the mixing tank 3 is provided with a suction port connected to the suction pipe of the grouting machine 2, and a protective cover is provided at the suction port; the present invention protects the connection part between the suction pipe of the grouting machine 2 and the suction port by providing a protective cover.

[0043] The bottom of the mixing tank 3 is provided with a moving component 16, which includes a support base and a moving wheel at the bottom of the support base. The present invention provides a support base for supporting the mixing tank 3 and a moving wheel for facilitating the movement of the mixing tank 3.

[0044] The grouting and reinforcement integrated drilling rig 1 includes a support platform 101. A tracked moving mechanism 102 is provided at the bottom of the support platform 101. By setting the tracked moving mechanism 102, the grouting and reinforcement integrated drilling rig 1 can be easily moved. A motor is provided at the top of the support platform 101. The output shaft of the motor is connected to a gearbox 103. The output shaft of the gearbox 103 extends outside the gearbox 103. A turntable 104 is provided outside the gearbox 103 and is rotatably connected to the gearbox 103. The turntable 104 and the gearbox 103 are limited by a limiting pin. The rotation of the motor will drive the output shaft of the gearbox 103 to rotate through the gearbox 103. A hollow cylinder 105 is fixedly connected to the side of the turntable 104 away from the gearbox 103. Due to the limitation of the limiting pin, the rotation of the output shaft of the gearbox 103 will not drive the turntable 104 to rotate.

[0045] A hollow cylinder 105 contains a bevel gear pair connected to the output shaft of a gearbox 103. A hollow hydraulic chuck 106 is located at the top of the hollow cylinder 105. Rotation of the gearbox 103's output shaft drives the hollow drill rod 108 to rotate via the bevel gear pair, which in turn drives the hollow hydraulic chuck 106. A hydraulic telescopic rod 107 is located at the bottom of the hollow cylinder 105. The telescopic end of the hydraulic telescopic rod 107 passes through the hollow cylinder 105 and connects to the hollow hydraulic chuck 106. By controlling the extension and retraction of the hydraulic telescopic rod 107, the extension and retraction of the hydraulic telescopic rod 107 drives the hollow hydraulic chuck 106. 6. The machine moves up and down to feed the hollow drill rod 108. The hollow hydraulic chuck 106 holds the hollow drill rod 108, which has a limiting groove on its peripheral sidewall. Through the setting of the limiting groove, the hollow drill rod 108 is limitedly connected to the inner wall of one of the bevel gears of the bevel gear pair. The top of the hollow drill rod 108 is connected to the grout outlet pipe of the grouting machine 2, and the bottom of the hollow drill rod 108 is provided with a drill bit. The rotation of the hollow hydraulic chuck 106 will drive the hollow drill rod 108 to rotate, and the rotation of the hollow drill rod 108 will drive the drill bit to rotate, thereby drilling a hole in the rock strata. Grouting is then performed by grouting after drilling.

[0046] The scraper 12 includes a long strip 1201 connected to one end of the inner sleeve rod 1102 located outside the outer sleeve tube 1101. The end of the long strip 1201 away from the inner sleeve rod 1102 is provided with an arc-shaped part 1202. When the inner sleeve rod 1102 rotates forty-five degrees, the arc-shaped part 1202 is completely in contact with the inner wall of the mixing tank 3. By setting the arc-shaped part 1202, the scraper 12 is completely in contact with the inner wall of the mixing tank 3 when the inner sleeve rod 1102 rotates forty-five degrees, thereby cleaning the slurry adhering to the inner wall of the mixing tank 3.

[0047] The hydraulic chuck 9 includes a body 901. Multiple slidingly connected teeth 902 are arranged in a circumferential array on the top of the body 901. A cylindrical cavity 903 is formed on the bottom side of the interior of the body 901. An annular piston cavity 904 is formed on the top side of the interior of the body 901. The annular piston cavity 904 and the cylindrical cavity 903 are connected via an annular cavity 905. A piston 906 is provided inside the annular piston cavity 904. A hollow piston rod 907 is provided on the side of the piston 906 near the cylindrical cavity 903, which is slidably and sealingly connected to the annular cavity 905, with one end located inside the annular cavity 905. A connecting rod 908 is hinged to the bottom of the hollow piston rod 907, and the other end of the connecting rod 908 is hinged to the teeth 902. Two hollow rings 909 are rotatably sleeved on the outer side of the body 901, one of which is connected to... The top cavity of piston 906 is connected, and another hollow ring 909 is connected to the bottom cavity of piston 906. Both hollow rings 909 are connected to the hydraulic system. Hydraulic oil is injected into one side of piston 906 through the hydraulic system. The hydraulic oil will push piston 906 to move and push the hydraulic oil on the other side of piston 906 into the hydraulic oil recovery pipe. Firstly, piston 906 slides and drives connecting rod 908 to move and rotate. Under the action of connecting rod 908, it will drive the clasp 902 to move closer to each other and insert into the clasp groove of hollow stirring rod 10, so that the hydraulic chuck 9 can rotate and drive the clasp 902 to insert into the clasp groove of hollow stirring rod 10. Secondly, piston 906 slides and pushes slide rod 13 to move, so that slide rod 13 both slides and rotates.

[0048] In use, drilling is first performed using the grouting and reinforcement integrated drilling rig 1. Specifically, the motor is started by controlling its rotation, which drives the output shaft of the gearbox 103 to rotate via the gearbox 103. Due to the limitation of the limit pin, the rotation of the output shaft of the gearbox 103 will not drive the turntable 104 to rotate. The rotation of the output shaft of the gearbox 103 will drive the hollow hydraulic chuck 106 to rotate via the bevel gear pair. The rotation of the hollow hydraulic chuck 106 will drive the hollow drill rod 108 to rotate, and the rotation of the hollow drill rod 108 will drive the drill bit to rotate, thereby drilling a hole in the rock strata. Then, the extension and retraction of the hydraulic telescopic rod 107 is controlled, which will drive the hollow hydraulic chuck 106 to move up and down, thereby feeding the hollow drill rod 108, and finally completing the drilling.

[0049] Hydraulic oil is injected into one side of the piston 906 of the hydraulic chuck 9 by controlling the hydraulic system, while the locking assembly 15 is locked. The hydraulic oil pushes the piston 906 to move and pushes the hydraulic oil on the other side of the piston 906 into the hydraulic oil recovery pipe. At the same time, the sliding of the piston 906 pushes the slide rod 13 to move, the slide rod 13 to move the fixed plate 1401, the fixed plate 1401 to move the rotating plate 1403, the rotating plate 1403 to move the arc-shaped extrusion plate 1404, and the sliding of the piston 906 drives the connecting rod 908 to move. Under the action of the connecting rod 908, the clasping teeth 902 move closer to each other and insert into the clasping groove of the hollow stirring rod 10. At this time, the arc-shaped extrusion plate 1404 just abuts against the side wall of the guide plate 704. Continue to control the hydraulic system to add hydraulic oil to the piston 906 side of the hydraulic chuck 9, and simultaneously control the locking assembly 15 to lock. The piston 906 continues to push the slide rod 13 to slide, and the slide rod 13 continues to push the fixed plate 1401 to slide. On one hand, the sliding of the fixed plate 1401 will push the hollow hydraulic oil push rod to slide. The hollow hydraulic oil push rod pushes the hydraulic oil in the hydraulic cylinder 1402 into the hollow stirring rod 10. Under the action of the hydraulic oil, the hydraulic oil will push the inner sleeve rod 1102 to slide. After overcoming the elastic force of the compression spring, the inner sleeve rod 1102 slides and drives the guide column 1104 to slide. The guide column 1104 slides first along the horizontal groove 1105, so that the inner sleeve rod 1102 slides out horizontally and drives the scraper 12 to slide out. In this process, the sliding of the fixed disk 1401 will push the rotating disk 1403 to move, the movement of the rotating disk 1403 will push the arc-shaped extrusion plate 1404 to move, the movement of the arc-shaped extrusion plate 1404 will push the guide disk 704 to move, and the movement of the guide disk 704 will cause the sliding sleeve 703 to engage with one of the mating sleeves 706 and be locked in place. Then, the drive motor 8 is started by controlling it, the drive motor 8 rotates and drives the rotating shaft 701 to rotate, the rotating shaft 701 rotates and drives the sliding sleeve 703 to rotate, the rotation of the sliding sleeve 703 will drive one of the mating sleeves 706 to rotate, that is, the mating sleeve 706 that is opposite to the sliding sleeve 703 rotates, and the rotation of one of the mating sleeves 706 will drive one of the second bevel gears 705 to rotate. When the first bevel gear 6 meshes, it drives the first bevel gear 6 to rotate in the forward direction. The rotation of the first bevel gear 6 will drive the hydraulic chuck 9 to rotate. The rotation of the hydraulic chuck 9 will drive the slide rod 13 and the hollow stirring rod 10 to rotate. The rotation of the slide rod 13 will drive the fixed plate 1401 to rotate. The rotation of the fixed plate 1401 will drive the hollow hydraulic oil push rod and the hydraulic cylinder 1402 to rotate. Due to the locking component 15, the rotation of the fixed plate 1401 will not drive the rotating plate 1403 to rotate. The rotation of the hollow stirring rod 10 will drive the telescopic rotating component 11 to rotate, thereby stirring the raw materials in the mixing tank 3. At this time, the sliding sleeve 703 and the docking sleeve 706 are not completely docked. Instead, the tooth groove 702 is only partially docked. The sliding sleeve 703 can still slide towards the docking sleeve 706.

[0050] Then, by controlling the piston 906 side of the hydraulic chuck 9, hydraulic oil continues to be added. The piston 906 continues to move, and the movement of the piston 906 drives the slide rod 13 to rotate and slide. The rotation and sliding of the slide rod 13 will continue to push the fixed plate 1401 to rotate and slide. The rotation and sliding of the fixed plate 1401 will drive the hollow hydraulic oil push rod to rotate and slide. The rotation of the hollow hydraulic oil push rod will drive the hydraulic cylinder 1402 to rotate. The sliding of the hollow hydraulic oil push rod will push the hydraulic oil in the hydraulic cylinder 1402 to continue to enter the hollow stirring rod 10. Under the action of the hydraulic oil, the hydraulic oil will push the inner sleeve rod 1102 to slide. After overcoming the elastic force of the compression spring, the inner sleeve rod 1102 slides and drives the guide column 1104 to slide. The guide column 1104 slides from the horizontal groove 1105 into the spiral groove 1106, where the spiral groove 1106 guides the movement. The inner sleeve rod 1102 is rotated, which in turn drives the scraper 12 to rotate, thereby stirring the mixing tank 3 and achieving multi-angle stirring to improve the stirring effect. Then, by controlling the piston 906 of the hydraulic chuck 9 to add hydraulic oil to the other side, the piston 906 will be pushed back, and the hydraulic oil on one side of the piston 906 will be pushed into the hydraulic oil recovery pipe. As the piston 906 retracts, the hydraulic oil pressure in the hollow stirring rod 10 will decrease. Under the elastic force of the compression spring, the guide column 1104 will be pushed from the spiral groove 1106 into the horizontal groove 1105. At the same time, the sliding of the guide column 1104 will push the inner sleeve rod 1102 to move. The movement of the inner sleeve rod 1102 will push the hydraulic oil in the hollow stirring rod 10 back to the hydraulic cylinder 1402, thereby causing the hollow hydraulic oil push rod to retract. By repeatedly controlling one side of the piston 906 of the hydraulic chuck 9 in the above manner to charge and release hydraulic oil, the scraper 12 repeatedly stirs the grouting fluid, thereby improving the stirring effect.

[0051] After mixing, grout is injected into the hollow drill rod 108 by controlling the grouting machine 2, thus entering the hole and ultimately reinforcing the rock strata. During the injection process, hydraulic oil is continuously injected into the piston 906 side of the hydraulic chuck 9 through the hydraulic system until the scraper 12 rotates forty-five degrees, that is, the tail end of the spiral groove 1106. At this time, the scraper 12 is in contact with the inner wall of the mixing tank 3. By controlling the extension of the hydraulic telescopic component 4, the top scraper 12 is made higher than the grout level line. Then, the contraction speed of the hydraulic telescopic component 4 is controlled to match the grout level drop. At the same speed, the hollow stirring rod 10 drives the scraper 12 to rotate, thereby scraping the liquid at the top of the slurry into the slurry. This allows for cleaning as the slurry in the mixing tank 3 descends, eliminating the need to wait until after filling to clean. This prevents the slurry adhering to the inner wall of the mixing tank 3 from solidifying after prolonged filling. Similarly, the scraper 12 at the second height is used to clean the inner wall of the mixing tank 3 corresponding to the scraper 12 at the second height, and so on, to complete the cleaning of the entire inner wall of the mixing tank 3.

[0052] When it is necessary to switch the stirring direction, firstly, hydraulic oil is injected into the other side of the piston 906 of the hydraulic chuck 9 by controlling the hydraulic system, causing the arc-shaped extrusion plate 1404 to retract to the position where it just contacts the guide plate 704. At this time, the chuck teeth 902 are still inserted in the slot of the hollow stirring rod 10. Since the retraction will cause the guide plate 704 to return to its initial position, the sliding sleeve 703 and the docking sleeve 706 will no longer be docked. Then, the locking component 15 is controlled to unlock, so that the hydraulic cylinder 1402, which continues to rotate under the action of inertial force, drives the rotating plate 1403. The curved extrusion plate 1404 is rotated 180 degrees, and then the locking assembly 15 is controlled to lock. At this time, the curved extrusion plate 1404 contacts another guide plate 704. Then, the hydraulic system is controlled to refill hydraulic oil to the piston 906 side of the hydraulic chuck 9. The piston 906 will push the slide rod 13 to slide. The slide rod 13 pushes the fixed plate 1401 to slide. The sliding of the fixed plate 1401 will push the rotating plate 1403 to move. The movement of the rotating plate 1403 will push the curved extrusion plate 1404 to move. The movement of 4 will push another guide plate 704 to move. The movement of the other guide plate 704 will cause the sliding sleeve 703 to engage with another docking sleeve 706 and be locked in place. The rotation of the sliding sleeve 703 will cause the other docking sleeve 706 to rotate, that is, the docking sleeve 706 that is opposite to the sliding sleeve 703 will rotate. The rotation of the other docking sleeve 706 will cause another second bevel gear 705 to rotate. Under the meshing action of the other second bevel gear 705 and the first bevel gear 6, the first bevel gear 6 will be driven to rotate in the opposite direction. The rotation of the first bevel gear 6 will... The hydraulic chuck 9 rotates, which in turn rotates the slide rod 13 and the hollow stirring rod 10. The slide rod 13 rotates, which in turn rotates the fixed plate 1401. The fixed plate 1401 rotates, which in turn rotates the hollow hydraulic oil push rod and the hydraulic cylinder 1402. Because the locking component 15 is locked, the rotation of the fixed plate 1401 will not drive the rotating plate 1403 to rotate. The rotation of the hollow stirring rod 10 will drive the telescopic rotating component 11 to rotate, thereby reversing the stirring of the raw materials in the mixing tank 3. This achieves the switching of the stirring direction of the hollow stirring rod 10.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grouting device for mine water hazard prevention, comprising an integrated grouting and reinforcement drilling rig, a grouting machine, and a mixing tank, characterized in that, The side wall of the mixing tank is connected to a support plate via a hydraulic telescopic assembly. A first bevel gear is rotatably mounted in the middle of the support plate. The first bevel gear is connected to a drive motor via a reversing assembly. A hollow mixing rod with a groove on its peripheral sidewall is clamped to the inner sidewall of the first bevel gear via a hydraulic chuck. The peripheral sidewall of the hollow mixing rod is provided with multiple telescopic rotating assemblies driven by hydraulic oil in the cavity. A scraper is provided at the end of the telescopic rotating assembly away from the hollow mixing rod. The hydraulic chuck includes a body. Multiple sliding teeth are arranged in a circular array on the top of the body. A piston is provided inside the hydraulic chuck to push the teeth to move. The sliding of the piston will cause the teeth to retract and clamp into the groove on the peripheral sidewall of the hollow mixing rod. The cavities on both sides of the piston in the hydraulic chuck are connected to the hydraulic system. Multiple sliding rods penetrating the hydraulic chuck are arranged in a circular array on the side of the piston away from the teeth. The ends of the multiple sliding rods located outside the hydraulic chuck are connected to the same adjustment assembly. The adjustment assembly is used to adjust the telescopic rotation of the telescopic rotating assembly and the reversing of the reversing assembly. The reversing assembly includes a rotating shaft mounted on the top of the support plate and driven to rotate by a drive motor. The rotating shaft has a sliding sleeve with toothed grooves at both ends that slides at the upper limit. Two guide discs are symmetrically fixed on the outer wall of the sliding sleeve. The two ends of the rotating shaft are symmetrically rotatably mounted with second bevel gears that mesh with the first bevel gear. The two second bevel gears are provided with mating sleeves that engage with the toothed grooves on the sliding sleeves on their respective sides. A return spring is provided between the sliding sleeve and the mating sleeve. The adjusting assembly includes a fixed disk connected to a slide rod. A hollow hydraulic oil push rod communicating with the cavity of a hollow stirring rod is connected to the side of the fixed disk away from the slide rod. A hydraulic cylinder connected to a support plate is sleeved on the hollow hydraulic oil push rod. A rotating disk is rotatably connected to the top of the fixed disk. A permanent magnet is provided on the side of the fixed disk that abuts against the rotating disk. An arc-shaped extrusion plate that cooperates with a guide plate is provided on the peripheral wall of the rotating disk. A connecting rod is rotatably provided on the peripheral wall of the rotating disk through a locking assembly. The other end of the connecting rod is connected to the support plate through a spring contraction cylinder.

2. The grouting device for mine water hazard prevention according to claim 1, characterized in that, The telescopic rotating assembly includes an outer sleeve communicating with the cavity of the hollow stirring rod. An inner sleeve rod is slidably disposed inside the outer sleeve. A receiving groove is formed on the inner wall of the outer sleeve. A guide post is provided on the peripheral side wall of the inner sleeve rod. A horizontal groove that cooperates with the guide post is provided on the inner wall of the receiving groove. An eighth-turn spiral groove is formed at the end of the horizontal groove away from the hollow stirring rod. A compression spring is provided between the guide post and the inner wall of the receiving groove.

3. The grouting device for mine water hazard prevention according to claim 1, characterized in that, The bottom of the mixing tank is provided with a suction port that is connected to the grouting machine's suction pipe, and a protective cover is provided at the suction port.

4. The grouting device for mine water hazard prevention according to claim 1, characterized in that, The bottom of the mixing tank is provided with a movable component, which includes a support base and a set of casters at the bottom of the support base.

5. A grouting device for preventing and controlling water hazards in mining, as described in claim 1, characterized in that, The grouting and reinforcement integrated drilling rig includes a support platform, a tracked moving mechanism at the bottom of the support platform, a motor at the top of the support platform, a gearbox connected to the output shaft of the motor, the output shaft of the gearbox extending outside the gearbox, a turntable located outside the gearbox and rotatably connected to the gearbox, the turntable and the gearbox being limited by a limiting pin, and a hollow cylinder fixedly connected to the side of the turntable away from the gearbox.

6. A grouting device for preventing water hazards in mining, as described in claim 5, is characterized in that... The hollow cylinder contains a bevel gear pair connected to the output shaft of the gearbox. A hollow hydraulic chuck is installed at the top of the hollow cylinder, and a hydraulic telescopic rod is installed at the bottom of the hollow cylinder. The telescopic end of the hydraulic telescopic rod passes through the hollow cylinder and connects to the hollow hydraulic chuck. A hollow drill rod with a limit groove on its peripheral sidewall is engaged in the hollow hydraulic chuck. The top of the hollow drill rod is connected to the grout outlet pipe of the grouting machine, and a drill bit is installed at the bottom of the hollow drill rod.

7. A grouting device for preventing water hazards in mining, as described in claim 1, characterized in that, The scraper includes a long strip connected to one end of the inner sleeve rod located outside the outer sleeve tube. The end of the long strip rod away from the inner sleeve rod has an arc-shaped part, which is completely in contact with the inner wall of the mixing tank when the inner sleeve rod rotates forty-five degrees.

8. A grouting device for preventing water hazards in mining, as described in claim 1, characterized in that, A cylindrical cavity is formed on the bottom side of the body, and an annular piston cavity is formed on the top side of the body. The annular piston cavity and the cylindrical cavity are connected through the annular cavity. A piston is provided in the annular piston cavity. A hollow piston rod is provided on the side of the piston near the cylindrical cavity, which is slidably and sealingly connected to the annular cavity and has one end located in the annular cavity. A connecting rod is hinged to the bottom of the hollow piston rod, and the other end of the connecting rod is hinged to a retaining tooth. Two hollow rings are rotatably sleeved on the outside of the body. One of the hollow rings is connected to the cavity at the top of the piston, and the other hollow ring is connected to the cavity at the bottom of the piston. Both hollow rings are connected to the hydraulic system.

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