Mine blast hole opening device

Abstract

The invention relates to the technical field of mine blasting, in particular to a mine blasting hole opening device which comprises a concave lifting seat, first hydraulic oil cylinders are fixedly mounted on the left side, the right side and the rear side face of the concave lifting seat, supporting bases are fixedly mounted at the lower ends of the first hydraulic oil cylinders, and a mounting bottom plate is arranged on the lower portion of the inner side of the concave lifting seat. L-shaped supporting plates are fixedly connected to the upper end of the mounting bottom plate in a bilateral symmetry mode, and cylinders are fixedly connected to the sides, away from each other, of the two L-shaped supporting plates. And the concave lifting base moves downwards by a certain distance, the concave lifting base drives the L-shaped supporting plate, the mounting bottom plate, the trepanning mechanism, the protective cover and the square corrugated pipe to move downwards, and the square corrugated pipe covers the position to be trepanned.

Description

Technical Field

[0001] The invention relates to the technical field of mine blasting, in particular to a mine blasting hole opening device. Background Art

[0002] When mining in a mine, blasting means are usually used to blast the ore, so as to facilitate the collection of ore. In the mining production process, mining operations consume the most manpower and material resources, occupy the most funds, and are also the production link with the greatest potential for reducing mining costs. Before blasting a mine, it is usually necessary to drill holes in the ore through a hole-opening device, and then put explosives into the drilled holes for blasting operations. Existing mine hole-opening devices have certain defects in the process of hole-opening operations. Existing hole-opening devices can basically only perform parallel drilling or vertical drilling. In the actual process of mine blasting, holes are opened in different directions according to different environmental needs. Some holes need to be drilled at an angle, but the angle adjustment of the drill bit of the existing hole-opening device cannot be adjusted. Although some holes can be adjusted, the adjustment method is very convenient, and the stability is poor during the inclined hole-opening process, resulting in low hole-opening efficiency. Summary of the invention

[0003] The object of the present invention is to provide a mine blasting hole opening device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mine blasting hole opening device, comprising a concave lifting seat, the left and right sides and the rear side of the concave lifting seat are fixedly installed with a first hydraulic cylinder, the lower end of the first hydraulic cylinder is fixedly installed with a supporting base, and a mounting base plate is arranged below the inner side of the concave lifting seat, the upper end of the mounting base plate is symmetrically fixedly connected with an L-shaped support plate, the two L-shaped support plates are fixedly connected with a cylinder on the side away from each other, and the two L-shaped support plates are respectively rotatably connected with the two side plates of the concave lifting seat through two cylinders, and one end of the cylinder away from the L-shaped support plate passes through the side wall of the concave lifting seat and is fixedly sleeved with a rotating crown gear, and the two outer side surfaces of the concave lifting seat are symmetrically fixedly connected with concave plates, and one of the cylinders is driven by the motor shaft of a synchronous motor fixedly installed on a concave plate;

[0005] The two outer sides of the concave lifting seat are symmetrically installed with locking mechanisms for locking the rotating crown gear, the installation base is installed with a hole opening mechanism, and the installation base is installed with a transmission mechanism for driving the hole opening mechanism to move up and down, and the lower end of the installation base is fixedly installed with a protective cover.

[0006] Preferably, an annular groove is symmetrically opened on the inner side of the concave lifting seat, and fan-shaped blocks are symmetrically fixedly connected to the two L-shaped support plates on the relatively distant sides, and the fan-shaped blocks are rotatably connected to the annular groove, and the cylinder is arranged between the two fan-shaped blocks.

[0007] Preferably, a slide groove is symmetrically provided on the side surface of the concave plate, and the locking mechanism includes a locking crown gear clamped on the side surface of the rotating crown gear, and a slider is fixedly connected symmetrically up and down on the cylindrical surface of the locking crown gear, and the slider is slidably connected to the slide groove left and right, and a fixed ear block is fixedly connected symmetrically front and back on the cylindrical surface of the locking crown gear, and a second hydraulic cylinder is fixedly installed on the side surface of the fixed ear block, and the second hydraulic cylinder is fixedly installed on the side surface of the concave lifting seat.

[0008] Preferably, transparent observation windows are installed on the front and rear sides of the protective cover, a square bellows is fixedly installed on the lower end of the protective cover, the square bellows is made of rubber material, and a spray head and a dust collector head are symmetrically installed on the left and right sides of the protective cover, the spray head is connected to the output end of the water pump through a soft water pipe, and the dust collector head is connected to the exhaust device through a soft connecting pipe.

[0009] Preferably, a rotating groove is provided at the upper end of the mounting base plate from top to bottom, a movable groove is provided on the side of the rotating groove, and the transmission mechanism includes a rotating seat rotatably installed in the rotating groove, an outer gear ring is fixedly sleeved on the outer side of the rotating seat, a driving gear is meshed on the side of the outer gear ring, and the driving gear is driven by the output shaft of a servo motor fixedly installed on the upper end of the mounting base plate, and both the outer gear ring and the driving gear are installed in the movable groove.

[0010] Preferably, a regular polygonal groove is formed through the upper end of the rotating seat from top to bottom, and the hole-opening mechanism comprises a regular polygonal column inserted into the regular polygonal groove, the lower end of the regular polygonal column is recessed upward and formed with a circular groove, the inner side of the circular groove is symmetrically formed with a guide groove extending outward, and the lower end of the regular polygonal column is fixedly connected with a hole-opening drill tube;

[0011] The upper end of the regular polygonal column is fixedly connected to a threaded column, an internal threaded sleeve is sleeved on the threaded column, the internal threaded sleeve is threadedly connected to the threaded column, and the side of the internal threaded sleeve is symmetrically fixedly connected to brackets, and the two brackets are respectively fixedly connected to the upper ends of the two L-shaped support plates.

[0012] Preferably, a material return mechanism is installed in the circular groove of the regular polygonal column, and the material return mechanism includes a lifting slide seat horizontally inserted in the two guide grooves, and an annular limit seat is sleeved on the outer side of the regular polygonal column. The two ends of the lifting slide seat respectively pass through the two guide grooves and are fixedly connected to the inner side of the annular limit seat. A support tube is fixedly inserted at the lower end of the lifting slide seat, and the lower end of the support tube extends downward to the inner cavity of the hole-opening drill barrel and is fixedly connected to a material return head, and the material return head is slidably connected to the inner cavity of the hole-opening drill barrel up and down.

[0013] Preferably, a water inlet mechanism is installed on the annular limit seat, and the water inlet mechanism includes an annular water-passing seat sleeved on the outside of the annular limit seat, an annular water-passing cavity is opened on the inner side of the annular water-passing seat, a convex portion is protruding from the side of the annular limit seat, the convex portion on the side of the annular limit seat is engaged with the annular water-passing cavity, the outer side of the annular limit seat is in rotational contact with the inner side of the annular water-passing seat, a water inlet pipe is fixedly inserted on the outer side of the annular water-passing seat, the water inlet pipe is connected with the annular water-passing cavity, one end of the water inlet pipe is connected to a hose through a pipe joint, and the other end of the hose is connected to the output end of the water pump through the pipe joint;

[0014] A water inlet groove is formed through the side of the lifting slide seat, and a through groove is formed through the side of the annular limit seat symmetrically, and the two through grooves are respectively connected to the two ends of the water inlet groove. The upper end of the support pipe extends upward to the bottom of the water inlet groove, and the inner cavity of the support pipe is connected to the water inlet groove.

[0015] A circular cavity is provided on the inner side of the material withdrawal head, and water outlet grooves are provided in a circular array downward at the bottom of the circular cavity. The lower end of the support tube extends downward to the bottom of the circular cavity, and water outlet notches are symmetrically provided at the lower end of the support tube. The inner cavity of the support tube is connected to the circular cavity through the water outlet notches.

[0016] Preferably, a docking mechanism is installed on the side of the annular water-passing seat, and the docking mechanism includes a docking plate fixedly connected to the side of the annular water-passing seat, and a rectangular block is symmetrically fixedly connected to one end of the docking plate away from the annular water-passing seat, and a lifting groove is opened on the side of an L-shaped support plate close to the docking plate, and vertical grooves are symmetrically opened on the inner side of the lifting groove, and the docking plate is connected to the lifting groove in an up-and-down sliding manner, and the rectangular block is connected to the vertical groove in an up-and-down sliding manner;

[0017] The upper end of the docking plate is recessed downward to form a concave shrinkage groove, and a movable plate is slidably connected in the concave shrinkage groove. The upper end of the movable plate is symmetrically protruding upward to provide an extension plate, and the upper ends of the two extension plates respectively penetrate the two ends of the concave shrinkage groove and extend to the outside. An elastic sheet is installed on one side of an extension plate at the upper end of the movable plate, and one side of the elastic sheet abuts against the inner side of the concave shrinkage groove. A docking block is fixedly connected to the upper end of the side surface of one of the extension plates at the upper end of the movable plate, and an extrusion block is fixedly connected to the upper end of the side surface of the other extension plate. The upper ends of the docking block and the extrusion block are both sloped, and an annular transmission plate is fixedly sleeved on the upper end of the regular polygonal column above the docking block.

[0018] Preferably, a pushing mechanism is installed above the docking mechanism, and the pushing mechanism includes a lower pressing block arranged above the extrusion block. A third hydraulic cylinder is fixedly installed on the upper end of the L-shaped support plate, and the piston rod of the third hydraulic cylinder passes downward through the L-shaped support plate and is fixedly connected to the upper end of the lower pressing block.

[0019] Compared with the prior art, the invention has the following advantages:

[0020] 1. When it is necessary to perform a hole drilling operation, first move the concave lifting seat to the top or vicinity of the hole to be drilled, and contract the piston rod of the first hydraulic cylinder to move the concave lifting seat downward for a distance. The concave lifting seat drives the L-shaped support plate, the mounting base plate, the hole drilling mechanism, the protective cover, and the square bellows to move downward, so that the square bellows cover the hole to be drilled. At the same time, the hole drilling drill tube in the hole drilling mechanism is aligned with the hole to be drilled. The protective cover and square bellows can effectively prevent the flying of gravel during the hole drilling process, and can also prevent dust from floating in the air.

[0021] 2. The hole-opening mechanism is driven to rotate through the transmission mechanism, so that the regular polygonal column drives the hole-opening drill tube to move downward while rotating, so that the hole-opening drill tube performs the hole-opening operation; at this time, water is pumped out from the water tank through the water pump, and the water is transported to the spray head through the soft water pipe, and the water is sprayed along the spray head to reduce dust; air is extracted through the exhaust device, so that the dust suction head removes the dust generated in the hole-opening process; at the same time, the water pump transports water through the hose and the water inlet pipe to the annular water passage cavity of the annular water passage seat, and the water flows downward along the through groove, the water inlet groove, and the inner cavity of the support tube, and the water flows into the circular cavity of the material withdrawal head through the water outlet notch at the lower end of the support tube, and then flows downward along the water outlet groove at the lower end of the material withdrawal head into the inner cavity of the hole-opening drill tube, and the water flows downward along the inner cavity of the hole-opening drill tube, thereby reducing dust drilled out during the hole-opening drill tube operation.

[0022] 3. When the drilling is completed and the drill tube needs to be removed from the hole, the transmission mechanism drives the drilling mechanism to reverse, so that the regular polygonal column drives the drilling tube to move upward while rotating, thereby moving the drilling tube upward out of the hole.

[0023] 4. When it is necessary to unload the stone in the drilling tube, the piston rod of the third hydraulic cylinder extends downward to drive the lower pressure block to move downward, and the extrusion block is pushed to move by the lower pressure block, and the extrusion block drives the extension plate to move, and the extension plate drives the movable plate to move, and the movable plate drives another extension plate to move, so that the docking block is separated from the annular transmission plate; the docking mechanism is driven to move downward as a whole by the lower pressure block, and at this time, the docking mechanism drives the annular water passing seat, the annular limit seat, and the lifting slide to move downward, and at the same time, the lifting slide drives the material withdrawal head to move downward through the support pipe, so that the material withdrawal head moves downward along the inner cavity of the drilling tube, and the stone in the inner cavity of the drilling tube is pushed out by the material withdrawal head, so as to facilitate the next drilling operation, and the material unloading method of the stone in the drilling tube is simple and convenient; at the same time, water is made to flow downward along the water outlet trough at the lower end of the material withdrawal head into the inner cavity of the drilling tube, and the inner cavity of the drilling tube is flushed by water, and the stone in the inner cavity of the drilling tube is further cleaned, which greatly improves the cleaning effect.

[0024] 5. When it is necessary to adjust the opening angle of the opening mechanism, first separate the locking crown gear from the rotating crown gear in the locking mechanism. At this time, the motor shaft of the synchronous motor drives the cylinder to rotate, and the cylinder drives the L-shaped support plate to rotate. The L-shaped support plate drives the mounting base plate to swing, and the mounting base drives the opening mechanism to rotate, and the inclination angle of the opening drill tube is adjusted, thereby adjusting the opening angle of the opening mechanism. The adjustment method is simple and convenient. After the adjustment is completed, the locking crown gear in the locking mechanism is engaged with the rotating crown gear, thereby locking the locking crown gear. At this time, the cylinder cannot rotate, and the L-shaped support plate and the mounting base plate will not rotate either, so that a stable opening operation can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the structure of the mine blasting hole opening device of the present invention;

[0026] Figure 2 This is a cross-sectional view of the structure of the mine blasting hole opening device of the present invention;

[0027] Figure 3 This is an exploded view of the structure of the mine blasting hole opening device of the present invention;

[0028] Figure 4 It is a cross-sectional view of the hole opening mechanism, transmission mechanism, material withdrawal mechanism, water inlet mechanism and docking mechanism of the present invention;

[0029] Figure 5 It is an exploded diagram of the installation base plate, hole opening mechanism, material withdrawal mechanism, docking mechanism and pushing mechanism of the present invention;

[0030] Figure 6 The exploded diagram of the installation base plate, transmission mechanism, water inlet mechanism and docking mechanism of the present invention;

[0031] Figure 7 It is an exploded view of the transmission mechanism, hole opening mechanism, material withdrawal mechanism, water inlet mechanism and docking mechanism of the present invention;

[0032] Figure 8 This is a cross-sectional view of the support tube and stripping head structure of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure after the docking mechanism and the annular transmission plate of the present invention are connected.

[0034] In the figure: 1. concave lifting seat; 11. first hydraulic cylinder; 12. supporting base; 13. annular groove; 14. concave plate; 15. slide groove; 2. mounting base plate; 21. rotating groove; 22. movable groove; 23. L-shaped supporting plate; 24. lifting groove; 25. internal thread sleeve; 26. cylinder; 27. rotating crown gear; 28. sector block; 3. locking crown gear; 31. slider; 32. fixed ear block; 33. second hydraulic cylinder; 4. protective cover; 41. square bellows; 42. spray head; 43. dust collector; 5. rotating seat; 51. external gear ring ; 52. driving gear; 53. regular polygonal column; 54. circular groove; 55. guide groove; 56. drilling tube; 57. threaded column; 6. lifting slide; 61. annular limit seat; 62. water inlet groove; 63. support pipe; 64. material withdrawal head; 65. water outlet notch; 66. water outlet groove; 7. annular water seat; 71. water inlet pipe; 72. hose; 73. annular transmission plate; 8. docking plate; 81. concave contraction groove; 82. movable plate; 83. elastic sheet; 84. docking block; 85. extrusion block; 9. third hydraulic cylinder; 91. lower pressure block. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figures 1 to 9 The present invention provides a technical solution: a mine blasting hole opening device, comprising a concave lifting seat 1, the left and right sides and the rear side of the concave lifting seat 1 are fixedly installed with a first hydraulic cylinder 11, the lower end of the first hydraulic cylinder 11 is fixedly installed with a support base 12, the lower end of the support base 12 is provided with an anti-slip pattern, the number of the first hydraulic cylinder 11 can be adjusted according to actual conditions, a mounting base plate 2 is arranged below the inner side of the concave lifting seat 1, the upper end of the mounting base plate 2 is symmetrically fixedly connected with an L-shaped support plate 23, the two L-shaped support plates 23 are fixedly connected with a cylinder 26 on the side away from each other, the two L-shaped support plates 23 are respectively rotatably connected with the two side plates of the concave lifting seat 1 through two cylinders 26, one end of the cylinder 26 away from the L-shaped support plate 23 passes through the side wall of the concave lifting seat 1 and is fixedly sleeved with a rotating crown gear 27, the two outer side surfaces of the concave lifting seat 1 are symmetrically fixedly connected with concave plates 14, one of the cylinders 26 is driven by the motor shaft of a synchronous motor fixedly installed on one concave plate 14;

[0037] The two outer side surfaces of the concave lifting seat 1 are symmetrically installed with locking mechanisms for locking the rotating crown gear 27, a hole opening mechanism is installed on the installation base plate 2, a transmission mechanism for driving the hole opening mechanism to move up and down is installed inside the installation base plate 2, and a protective cover 4 is fixedly installed at the lower end of the installation base plate 2.

[0038] See also Figures 1 to 3 The inner side surface of the concave lifting seat 1 is symmetrically provided with an annular groove 13, and the two L-shaped support plates 23 are symmetrically fixedly connected with fan-shaped blocks 28 on the sides relatively far away from each other. The fan-shaped blocks 28 are rotatably connected to the annular groove 13, and the cylinder 26 is arranged between the two fan-shaped blocks 28.

[0039] When the motor shaft of the synchronous motor drives the cylinder 26 to rotate, the cylinder 26 drives the L-shaped support plate 23 to rotate, and the L-shaped support plate 23 drives the mounting base plate 2 to swing. At the same time, the L-shaped support plate 23 drives the side fan-shaped block 28 to rotate along the annular groove 13, so that the L-shaped support plate 23 can rotate stably. At the same time, during the hole opening operation, the fan-shaped block 28 cooperates with the annular groove 13, so that the L-shaped support plate 23 can be more stable, preventing the L-shaped support plate 23 from shaking at will, thereby ensuring the stability of the hole opening.

[0040] The side surface of the concave plate 14 is symmetrically provided with a slide groove 15, and the locking mechanism includes a locking crown gear 3 clamped on the side surface of the rotating crown gear 27, and the cylindrical surface of the locking crown gear 3 is symmetrically fixedly connected with a slider 31, and the slider 31 is slidably connected to the slide groove 15 left and right, and the cylindrical surface of the locking crown gear 3 is symmetrically fixedly connected with a fixed ear block 32 front and back, and the side surface of the fixed ear block 32 is fixedly installed with a second hydraulic cylinder 33, and the second hydraulic cylinder 33 is fixedly installed on the side surface of the concave lifting seat 1.

[0041] A circular hole is formed through the side surface of the locking crown gear 3 , and the motor shaft of the synchronous motor passes through the circular hole on the side surface of the locking crown gear 3 , and the motor shaft does not interfere with the locking crown gear 3 during rotation.

[0042] The piston rod of the second hydraulic cylinder 33 is connected to the fixed ear block 32. The piston rod of the second hydraulic cylinder 33 extends to drive the locking crown gear 3 to move outward, and the locking crown gear 3 drives the slider 31 to slide along the slide groove 15. At the same time, the locking crown gear 3 is separated from the rotating crown gear 27. At this time, the rotating crown gear 27 can rotate at will. Since the rotating crown gear 27 is fixed to the cylinder 26, the motor shaft can drive the cylinder 26 to rotate.

[0043] When the piston rod of the second hydraulic cylinder 33 contracts, it drives the locking crown gear 3 to move inward, so that the locking crown gear 3 is engaged with the rotating crown gear 27, thereby locking the rotating crown gear 27. At this time, the cylinder 26 cannot rotate, and the L-shaped support plate 23 and the mounting base plate 2 will not rotate either, so that a stable hole opening operation can be performed.

[0044] Transparent observation windows are installed on the front and rear sides of the protective cover 4. A square bellows 41 is fixedly installed on the lower end of the protective cover 4. The square bellows 41 is made of rubber material. A spray head 42 and a dust collector head 43 are symmetrically installed on the left and right sides of the protective cover 4. The spray head 42 is connected to the output end of the water pump through a soft water pipe. Water is pumped out from the water tank through the water pump, and the water is transported to the spray head 42 through the soft water pipe. The water is sprayed along the spray head 42 to reduce dust. The dust collector head 43 is connected to the exhaust device through a soft connecting pipe. A dust filtering device can be installed at the outlet end of the exhaust device to process the dust in the opening.

[0045] See also Figure 5 and Figure 6 A rotating groove 21 is formed through the upper end of the mounting base plate 2 from top to bottom, and a movable groove 22 is formed on the side of the rotating groove 21. The transmission mechanism includes a rotating seat 5 rotatably mounted in the rotating groove 21, and an outer gear ring 51 is fixedly sleeved on the outer side of the rotating seat 5. A driving gear 52 is meshed on the side of the outer gear ring 51. The driving gear 52 is driven by the output shaft of a servo motor fixedly mounted on the upper end of the mounting base plate 2. Both the outer gear ring 51 and the driving gear 52 are mounted in the movable groove 22.

[0046] When the outer gear ring 51 rotates, it rotates along the movable groove 22, and the rotating seat 5 is driven to rotate along the rotating groove 21 by the outer gear ring 51. At this time, the movable groove 22 limits the outer gear ring 51 to prevent the outer gear ring 51 from moving up and down. The rotating seat 5 can only rotate along the rotating groove 21 through the cooperation of the set rotating groove 21, the movable groove 22 and the outer gear ring 51.

[0047] The output end of the servo motor drives the driving gear 52 to rotate, and the driving gear 52 drives the rotating seat 5 to rotate through the outer gear ring 51.

[0048] See also Figures 2 to 6 The upper end of the rotating seat 5 is penetrated from top to bottom with a regular polygonal groove, and the hole-opening mechanism includes a regular polygonal column 53 inserted into the regular polygonal groove, and the regular polygonal column 53 is slidably connected with the regular polygonal groove of the rotating seat 5 up and down, and the lower end of the regular polygonal column 53 is recessed upward to form a circular groove 54, and the inner side of the circular groove 54 is symmetrically penetrated and outwardly formed with a guide groove 55, and the lower end of the regular polygonal column 53 is fixedly connected with a hole-opening drill tube 56, and the inner cavity of the hole-opening drill tube 56 is connected with the inner cavity of the circular groove 54, and the diameter of the inner cavity of the hole-opening drill tube 56 is the same as the diameter of the circular groove 54;

[0049] The upper end of the regular polygonal column 53 is fixedly connected to a threaded column 57, on which an internal threaded sleeve 25 is sleeved. The internal threaded sleeve 25 is threadedly connected to the threaded column 57, and the side of the internal threaded sleeve 25 is symmetrically fixedly connected to brackets. The two brackets are respectively fixedly connected to the upper ends of the two L-shaped support plates 23.

[0050] When the rotating seat 5 rotates, it drives the regular polygonal column 53 to rotate synchronously. When the regular polygonal column 53 rotates, it drives the threaded column 57 to rotate. At this time, the threaded column 57 rotates along the internal threaded sleeve 25. The regular polygonal column 53 drives the threaded column 57 to rotate forward or reverse, so that the threaded column 57 moves upward or downward along the internal threaded sleeve 25. The threaded column 57 drives the regular polygonal column 53 to move upward or downward. The regular polygonal column 53 drives the drilling barrel 56 to move downward or upward while rotating, so as to perform drilling operations or move the drilling barrel 56 upward out of the hole.

[0051] When it is necessary to adjust the hole opening angle of the hole opening mechanism, firstly release the locking mechanism on the rotating crown gear 27, and drive the cylinder 26 to rotate through the motor shaft of the synchronous motor, and the cylinder 26 drives the L-shaped support plate 23 to rotate, and the L-shaped support plate 23 drives the mounting base plate 2 to swing, and the mounting base plate 2 drives the hole opening mechanism to rotate, and adjust the inclination angle of the hole opening drill tube 56, so as to adjust the hole opening angle of the hole opening mechanism, and the adjustment method is simple and convenient;

[0052] After the adjustment is completed, the rotating crown gear 27 is locked by the locking mechanism, so that the cylinder 26, the L-shaped support plate 23, the mounting base plate 2 and the hole opening mechanism cannot be rotated or swung at will, so that the hole opening mechanism can stably perform the hole opening operation.

[0053] See also Figure 4 , Figure 5 , Figure 7 and Figure 8 A material return mechanism is installed in the circular groove 54 of the regular polygonal column 53, and the material return mechanism includes a lifting slide 6 horizontally inserted in the two guide grooves 55, and the lifting slide 6 is connected to the guide grooves 55 for up and down sliding. An annular limit seat 61 is sleeved on the outer side of the regular polygonal column 53, and the two ends of the lifting slide 6 pass through the two guide grooves 55 respectively and are fixedly connected to the inner side of the annular limit seat 61, and the inner side of the annular limit seat 61 does not contact the regular polygonal column 53. A support tube 63 is fixedly inserted at the lower end of the lifting slide 6, and the lower end of the support tube 63 extends downward to the inner cavity of the hole-opening drill tube 56 and is fixedly connected to a material return head 64, and the material return head 64 is connected to the inner cavity of the hole-opening drill tube 56 for up and down sliding.

[0054] The support tube 63 can move up and down along the inner cavity of the circular groove 54 and the drilling tube 56 .

[0055] A water inlet mechanism is installed on the annular limit seat 61, and the water inlet mechanism includes an annular water passing seat 7 sleeved on the outer side of the annular limit seat 61, an annular water passing cavity is opened on the inner side of the annular water passing seat 7, and a convex portion is protruding from the side of the annular limit seat 61. The cross section of the annular limit seat 61 is convex, and the convex portion on the side of the annular limit seat 61 is clamped with the annular water passing cavity, and the convex portion is in rotational contact with the annular water passing cavity, and a gap is left between the convex portion and the side wall of the annular water passing cavity for water circulation, and the outer side of the annular limit seat 61 is in rotational contact with the inner side of the annular water passing seat 7, and the position where the annular limit seat 61 contacts the annular water passing seat 7 is sealed, and a water inlet pipe 71 is fixedly inserted on the outer side of the annular water passing seat 7, and the water inlet pipe 71 is connected with the annular water passing cavity, one end of the water inlet pipe 71 is connected to the hose 72 through a pipe joint, and the other end of the hose 72 is connected to the output end of the water pump through a pipe joint;

[0056] A water inlet groove 62 is formed through the side of the lifting slide 6, and a through groove is formed through the side of the annular limit seat 61 symmetrically, and the two through grooves are respectively connected to the two ends of the water inlet groove 62, and the upper end of the support tube 63 extends upward to the bottom of the water inlet groove 62, and the inner cavity of the support tube 63 is connected to the water inlet groove 62;

[0057] A circular cavity is provided on the inner side of the material return head 64, and a water outlet groove 66 is provided in a circular array downward at the bottom of the circular cavity. The lower end of the support tube 63 extends downward to the bottom of the circular cavity, and a water outlet notch 65 is symmetrically provided at the lower end of the support tube 63. The inner cavity of the support tube 63 is connected to the circular cavity through the water outlet notch 65.

[0058] The water pump transports water to the annular water cavity of the annular water seat 7 through the hose 72 and the water inlet pipe 71. The water flows into the water inlet groove 62 along the through groove, and then flows downward along the water inlet groove 62 into the inner cavity of the support tube 63, and flows downward along the inner cavity of the support tube 63. The water flows into the circular cavity of the return head 64 through the water outlet notch 65 at the lower end of the support tube 63, and finally the water flows downward along the water outlet groove 66 at the lower end of the return head 64 into the inner cavity of the hole-opening drill tube 56. The water flows downward along the inner cavity of the hole-opening drill tube 56, thereby reducing dust drilled out during the operation of the hole-opening drill tube 56.

[0059] See also Figures 4 to 7 , Fig. 9 A docking mechanism is installed on the side of the annular water-passing seat 7, and the docking mechanism includes a docking plate 8 fixedly connected to the side of the annular water-passing seat 7, and a rectangular block is symmetrically fixedly connected to one end of the docking plate 8 away from the annular water-passing seat 7, and a lifting groove 24 is opened on the side of an L-shaped support plate 23 close to the docking plate 8, and vertical grooves are symmetrically opened on the inner side of the lifting groove 24, and the docking plate 8 is connected to the lifting groove 24 by sliding up and down, and the rectangular block is connected to the vertical groove by sliding up and down;

[0060] The upper end of the docking plate 8 is recessed downward and provided with a concave contraction groove 81, and a movable plate 82 is slidably connected in the concave contraction groove 81. The upper end of the movable plate 82 is symmetrically protruding upward and provided with an extension plate. The upper ends of the two extension plates respectively pass through the two ends of the concave contraction groove 81 and extend to the outside. The movable plate 82 and the two extension plates form a concave plate, and the movable plate 82 and the two extension plates are both slidably connected to the concave contraction groove 81. An elastic sheet 83 is installed on one side of an extension plate at the upper end of the movable plate 82, and one side of the elastic sheet 83 abuts against the inner side of the concave contraction groove 81. The elastic sheet 83 applies elastic force to the extension plate. A docking block 84 is fixedly connected to the upper end of the side of one of the extension plates at the upper end of the movable plate 82, and an extrusion block 85 is fixedly connected to the upper end of the side of the other extension plate. The upper ends of the docking block 84 and the extrusion block 85 are both sloped, and an annular transmission plate 73 is fixedly sleeved on the upper end of the regular polygonal column 53 above the docking block 84.

[0061] During the hole-making operation, the regular polygonal column 53 moves downward. When the regular polygonal column 53 drives the annular transmission plate 73 to move downward to the lowest end, the annular transmission plate 73 first contacts the slope surface at the upper end of the docking block 84. When the annular transmission plate 73 continues to move downward, the annular transmission plate 73 squeezes the docking block 84 to move. The docking block 84 drives the movable plate 82 to squeeze the elastic sheet 83 through the extension plate. When the annular transmission plate 73 moves to the lowest end, the elastic force of the elastic sheet 83 causes the movable plate 82 and the extension plate to move back. At the same time, the extension plate drives the docking block 84 to move back, so that the docking block 84 is stuck above the annular transmission plate 73.

[0062] During the downward movement of the drilling tube 56, the docking plate 8 in the docking mechanism abuts against the upper end of the mounting base plate 2, so that the docking mechanism cannot move downward, and at the same time, the annular water passing seat 7, the annular limit seat 61, the lifting slide 6, the support tube 63 and the material stripping head 64 will not move downward. At this time, the inner cavity of the drilling tube 56 moves downward along the material stripping head 64;

[0063] When the regular polygonal column 53 rotates, the lifting slide 6 is driven to rotate, and the lifting slide 6 drives the annular limit seat 61 to rotate along the annular water-passing cavity inside the annular water-passing seat 7. At the same time, during the downward movement of the regular polygonal column 53, the guide groove 55 on its side slides downward along the lifting slide 6.

[0064] When the hole is drilled, the drilling barrel 56 needs to be moved upward from the hole. At the same time, the regular polygonal column 53 drives the annular transmission plate 73 to move upward, and the annular transmission plate 73 drives the docking block 84 to move upward, so that the docking mechanism moves upward as a whole, and the docking mechanism drives the annular water passing seat 7 to move upward, and the annular water passing seat 7 drives the annular limit seat 61 and the lifting slide 6 to move upward. At the same time, the lifting slide 6 drives the material return head 64 to move upward through the support tube 63 to prevent the material return head 64 from pushing the stones in the drilling barrel 56 back into the hole during the upward movement of the drilling barrel 56.

[0065] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 and Fig. 9 A pushing mechanism is installed above the docking mechanism, and the pushing mechanism includes a lower pressing block 91 arranged above the extrusion block 85. A third hydraulic cylinder 9 is fixedly installed on the upper end of the L-shaped support plate 23. The piston rod of the third hydraulic cylinder 9 passes downward through the L-shaped support plate 23 and is fixedly connected to the upper end of the lower pressing block 91.

[0066] When it is necessary to discharge the stone in the drilling tube 56, the piston rod of the third hydraulic cylinder 9 extends downward to drive the lower pressing block 91 to move downward. After the lower end of the lower pressing block 91 contacts the slope surface of the upper end of the extrusion block 85, the lower pressing block 91 continues to move downward to push the extrusion block 85 to move, and the extrusion block 85 drives the extension plate to move, and the extension plate drives the movable plate 82 to move. At the same time, the movable plate 82 drives another extension plate to move, so that the docking block 84 is separated from the annular transmission plate 73.

[0067] At this time, the lower pressing block 91 continues to move downward. After the lower end of the lower pressing block 91 contacts the upper end of the docking plate 8, the lower pressing block 91 continues to move downward, which will drive the docking mechanism to move downward as a whole. At this time, the docking mechanism drives the annular water-passing seat 7 to move downward, and the annular water-passing seat 7 drives the annular limit seat 61 and the lifting slide 6 to move downward. At this time, the lifting slide 6 slides downward along the guide groove 55, and at the same time, the lifting slide 6 drives the material stripping head 64 to move downward through the support tube 63, so that the material stripping head 64 moves downward along the inner cavity of the hole-opening drill tube 56, and the stone in the inner cavity of the hole-opening drill tube 56 is pushed out by the material stripping head 64, thereby facilitating the next hole-opening operation.

[0068] The operation of unloading the stones in the hole drilling tube 56 is simple and convenient, which greatly improves the work efficiency.

[0069] Working principle: when it is necessary to perform a hole drilling operation, first move the concave lifting seat 1 to the top or near the position to be drilled, and the piston rod of the first hydraulic cylinder 11 is contracted to move the concave lifting seat 1 downward for a distance, and the concave lifting seat 1 drives the L-shaped support plate 23, the mounting base plate 2, the hole drilling mechanism, the protective cover 4, and the square corrugated tube 41 to move downward, so that the square corrugated tube 41 covers the position to be drilled, and at the same time, the drilling drill tube 56 in the hole drilling mechanism is aligned with the position to be drilled;

[0070] The output end of the servo motor drives the driving gear 52 to rotate, and the driving gear 52 drives the rotating seat 5 to rotate through the outer gear ring 51, and the rotating seat 5 drives the regular polygonal column 53 to rotate. When the regular polygonal column 53 rotates, it drives the threaded column 57 to rotate. At this time, the threaded column 57 rotates along the internal threaded sleeve 25, so that the threaded column 57 moves downward along the internal threaded sleeve 25, and the regular polygonal column 53 moves downward through the threaded column 57, so that the regular polygonal column 53 drives the hole-opening drill tube 56 to move downward while rotating, so that the hole-opening drill tube 56 performs a hole-opening operation;

[0071] At this time, water is pumped out from the water tank through a water pump, and the water is transported to the spray head 42 through a soft water pipe. The water is sprayed along the spray head 42 to reduce dust. The vacuum device is used to extract air so that the dust collector 43 removes the dust generated during the hole opening process. The protective cover 4 and the square corrugated pipe 41 can effectively prevent the flying of crushed stones during the hole opening process.

[0072] At the same time, the water pump transports water to the annular water cavity of the annular water seat 7 through the hose 72 and the water inlet pipe 71. The water flows downward along the through groove, the water inlet groove 62, and the inner cavity of the support tube 63. The water flows into the circular cavity of the return head 64 through the water outlet notch 65 at the lower end of the support tube 63, and then flows downward along the water outlet groove 66 at the lower end of the return head 64 into the inner cavity of the hole-opening drill tube 56. The water flows downward along the inner cavity of the hole-opening drill tube 56, thereby reducing dust drilled out during the operation of the hole-opening drill tube 56.

[0073] The opening mechanism drives the annular transmission plate 73 to move downward during the downward movement. When the annular transmission plate 73 moves to the lowermost end, the docking block 84 is stuck on the upper part of the annular transmission plate 73.

[0074] When the drilling is completed and the drilling barrel 56 needs to be moved out of the hole, the output end of the servo motor drives the driving gear 52 to reverse, so that the rotating seat 5 drives the regular polygonal column 53 to reverse, and the regular polygonal column 53 drives the threaded column 57 to reverse. At this time, the threaded column 57 moves upward along the internal threaded sleeve 25, and the threaded column 57 drives the regular polygonal column 53 to move upward, so that the regular polygonal column 53 drives the drilling barrel 56 to move upward while rotating, so that the drilling barrel 56 is moved upward out of the hole. At this time, the drilling barrel 56 is moved away from above, or the drilling barrel 56 is tilted and rotated;

[0075] During the upward movement of the regular polygonal column 53, the annular transmission plate 73 drives the docking mechanism to move upward, the docking mechanism drives the annular water-passing seat 7 to move upward, the annular water-passing seat 7 drives the annular limit seat 61 and the lifting slide 6 to move upward, and the lifting slide 6 drives the stripping head 64 to move upward through the support tube 63;

[0076] When it is necessary to unload the stone in the drilling tube 56, the piston rod of the third hydraulic cylinder 9 extends downward to drive the pressing block 91 to move downward, and the pressing block 91 pushes the extrusion block 85 to move, and the extrusion block 85 drives the extension plate to move, and the extension plate drives the movable plate 82 to move, and at the same time the movable plate 82 drives another extension plate to move, so that the docking block 84 is separated from the annular transmission plate 73;

[0077] At this time, the lower pressing block 91 continues to move downward. After the lower end of the lower pressing block 91 contacts the upper end of the docking plate 8, the lower pressing block 91 continues to move downward, which will drive the docking mechanism to move downward as a whole. At this time, the docking mechanism drives the annular water-passing seat 7 to move downward, and the annular water-passing seat 7 drives the annular limit seat 61 and the lifting slide 6 to move downward. At this time, the lifting slide 6 slides downward along the guide groove 55, and at the same time, the lifting slide 6 drives the material stripping head 64 to move downward through the support tube 63, so that the material stripping head 64 moves downward along the inner cavity of the hole-opening drill tube 56, and the stone in the inner cavity of the hole-opening drill tube 56 is pushed out by the material stripping head 64, thereby facilitating the next hole-opening operation, and the method of unloading the stone in the hole-opening drill tube 56 is simple and convenient;

[0078] At the same time, water is transported to the annular water cavity of the annular water seat 7 through the hose 72 and the water inlet pipe 71 by a water pump, and the water flows downward along the through groove, the water inlet groove 62, and the inner cavity of the support tube 63. The water flows into the circular cavity of the return head 64 through the water outlet notch 65 at the lower end of the support tube 63, and then flows downward along the water outlet groove 66 at the lower end of the return head 64 into the inner cavity of the hole-opening drill tube 56. The inner cavity of the hole-opening drill tube 56 is flushed by water, and the stones and the like in the inner cavity of the hole-opening drill tube 56 are further cleaned, thereby greatly improving the cleaning effect.

[0079] When it is necessary to adjust the opening angle of the hole-opening mechanism, the piston rod of the second hydraulic cylinder 33 is extended to drive the locking crown gear 3 to move outward, so that the locking crown gear 3 is separated from the rotating crown gear 27. At this time, the motor shaft of the synchronous motor drives the cylinder 26 to rotate, and the cylinder 26 drives the L-shaped support plate 23 to rotate. The L-shaped support plate 23 drives the mounting base plate 2 to swing, and the mounting base plate 2 drives the hole-opening mechanism to rotate, and the inclination angle of the hole-opening drill tube 56 is adjusted, thereby adjusting the hole-opening angle of the hole-opening mechanism. The adjustment method is simple and convenient.

[0080] After the adjustment is completed, the locking crown gear 3 is driven inward by the contraction of the piston rod of the second hydraulic cylinder 33, so that the locking crown gear 3 is engaged with the rotating crown gear 27, thereby locking the rotating crown gear 27. At this time, the cylinder 26 cannot rotate, and the L-shaped support plate 23 and the mounting base plate 2 will not rotate either, so that a stable hole opening operation can be performed.

[0081] 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. A mine blasting hole opening device, comprising a concave lifting seat (1), characterized in that: The left and right sides and the rear side of the concave lifting seat (1) are fixedly mounted with a first hydraulic cylinder (11); the lower end of the first hydraulic cylinder (11) is fixedly mounted with a support base (12); a mounting base plate (2) is arranged below the inner side of the concave lifting seat (1); the upper end of the mounting base plate (2) is symmetrically fixedly connected with an L-shaped support plate (23); the two L-shaped support plates (23) are fixedly connected with a cylinder (26) on the side away from each other; the two L-shaped support plates (23) are rotatably connected with the two side plates of the concave lifting seat (1) through the two cylinders (26); the end of the cylinder (26) away from the L-shaped support plate (23) passes through the side wall of the concave lifting seat (1) and is fixedly sleeved with a rotating crown gear (27); the two outer side surfaces of the concave lifting seat (1) are symmetrically fixedly connected with the concave plates (14); one of the cylinders (26) is driven by a motor shaft of a synchronous motor fixedly mounted on one of the concave plates (14); The two outer side surfaces of the concave lifting seat (1) are symmetrically mounted with locking mechanisms for locking the rotating crown gear (27); a hole-opening mechanism is mounted on the mounting base plate (2); a transmission mechanism for driving the hole-opening mechanism to move up and down is mounted inside the mounting base plate (2); and a protective cover (4) is fixedly mounted at the lower end of the mounting base plate (2).

2. A mine blasting hole opening device according to claim 1, characterized in that: The inner side surface of the concave lifting seat (1) is symmetrically provided with an annular groove (13), and the two L-shaped support plates (23) are symmetrically fixedly connected with fan-shaped blocks (28) on the sides that are relatively far away from each other. The fan-shaped blocks (28) are rotatably connected to the annular groove (13), and the cylinder (26) is arranged between the two fan-shaped blocks (28).

3. A mine blasting hole opening device according to claim 1, characterized in that: The side surface of the concave plate (14) is symmetrically provided with a slide groove (15) in the upper and lower directions. The locking mechanism comprises a locking crown gear (3) clamped on the side surface of the rotating crown gear (27). The cylindrical surface of the locking crown gear (3) is symmetrically fixedly connected with a slider (31) in the upper and lower directions. The slider (31) is slidably connected with the slide groove (15) in the left and right directions. The cylindrical surface of the locking crown gear (3) is symmetrically fixedly connected with a fixed ear block (32) in the front and rear directions. The side surface of the fixed ear block (32) is fixedly installed with a second hydraulic cylinder (33). The second hydraulic cylinder (33) is fixedly installed on the side surface of the concave lifting seat (1).

4. A mine blasting hole opening device according to claim 1, characterized in that: Transparent observation windows are installed on both the front and rear sides of the protective cover (4); a square bellows (41) is fixedly installed on the lower end of the protective cover (4); the square bellows (41) is made of rubber material; a spray head (42) and a dust collector head (43) are symmetrically installed on the left and right sides of the protective cover (4); the spray head (42) is connected to the output end of the water pump through a soft water pipe, and the dust collector head (43) is connected to the exhaust device through a soft connecting pipe.

5. A mine blasting hole opening device according to claim 1, characterized in that: A rotating groove (21) is provided on the upper end of the mounting base plate (2) from top to bottom, and a movable groove (22) is provided on the side of the rotating groove (21). The transmission mechanism comprises a rotating seat (5) rotatably mounted in the rotating groove (21), an outer gear ring (51) is fixedly sleeved on the outer side of the rotating seat (5), and a driving gear (52) is meshed on the side of the outer gear ring (51). The driving gear (52) is driven by the output shaft of a servo motor fixedly mounted on the upper end of the mounting base plate (2), and the outer gear ring (51) and the driving gear (52) are both mounted in the movable groove (22).

6. A mine blasting hole opening device according to claim 5, characterized in that: The upper end of the rotating seat (5) is provided with a regular polygonal groove extending from top to bottom, the hole-opening mechanism comprises a regular polygonal column (53) inserted into the regular polygonal groove, the lower end of the regular polygonal column (53) is recessed upward and provided with a circular groove (54), the inner side of the circular groove (54) is provided with a guide groove (55) extending outward and extending symmetrically from left to right, and the lower end of the regular polygonal column (53) is fixedly connected with a hole-opening drill tube (56); The upper end of the regular polygonal column (53) is fixedly connected with a threaded column (57), an internal threaded sleeve (25) is sleeved on the threaded column (57), the internal threaded sleeve (25) is threadedly connected to the threaded column (57), and brackets are fixedly connected to the side surfaces of the internal threaded sleeve (25) in a symmetrical manner, and the two brackets are respectively fixedly connected to the upper ends of the two L-shaped support plates (23).

7. A mine blasting hole opening device according to claim 6, characterized in that: A material return mechanism is installed in the circular groove (54) of the regular polygonal column (53), and the material return mechanism includes a lifting slide (6) horizontally inserted in the two guide grooves (55). The outer side of the regular polygonal column (53) is sleeved with an annular limit seat (61). The two ends of the lifting slide (6) pass through the two guide grooves (55) and are fixedly connected to the inner side of the annular limit seat (61). The lower end of the lifting slide (6) is fixedly plugged with a support tube (63). The lower end of the support tube (63) extends downward to the inner cavity of the perforating drill tube (56) and is fixedly connected with a material return head (64). The material return head (64) is slidably connected to the inner cavity of the perforating drill tube (56) up and down.

8. A mine blasting hole opening device according to claim 7, characterized in that: A water inlet mechanism is installed on the annular limit seat (61), and the water inlet mechanism comprises an annular water passing seat (7) sleeved on the outside of the annular limit seat (61), an annular water passing cavity is opened on the inner side of the annular water passing seat (7), a convex portion is protruding from the side of the annular limit seat (61), the convex portion on the side of the annular limit seat (61) is engaged with the annular water passing cavity, the outer side of the annular limit seat (61) is in rotational contact with the inner side of the annular water passing seat (7), a water inlet pipe (71) is fixedly inserted on the outer side of the annular water passing seat (7), the water inlet pipe (71) is connected with the annular water passing cavity, one end of the water inlet pipe (71) is connected to a hose (72) through a pipe joint, and the other end of the hose (72) is connected to the output end of the water pump through the pipe joint; A water inlet groove (62) is formed through the side of the lifting slide seat (6), and a through groove is formed through the side of the annular limit seat (61) symmetrically, the two through grooves are respectively connected to the two ends of the water inlet groove (62), the upper end of the support tube (63) extends upward to the bottom of the water inlet groove (62), and the inner cavity of the support tube (63) is connected to the water inlet groove (62); A circular cavity is provided on the inner side of the material withdrawal head (64), and a water outlet groove (66) is provided downwardly in a circular array at the bottom of the circular cavity. The lower end of the support tube (63) extends downwardly to the bottom of the circular cavity, and a water outlet notch (65) is provided symmetrically at the lower end of the support tube (63). The inner cavity of the support tube (63) is connected to the circular cavity through the water outlet notch (65).

9. A mine blasting hole opening device according to claim 8, characterized in that: A docking mechanism is installed on the side of the annular water-passing seat (7), and the docking mechanism includes a docking plate (8) fixedly connected to the side of the annular water-passing seat (7), and a rectangular block is symmetrically fixedly connected to one end of the docking plate (8) away from the annular water-passing seat (7), and a lifting groove (24) is opened on the side of an L-shaped support plate (23) close to the docking plate (8), and a vertical groove is symmetrically opened on the inner side of the lifting groove (24), and the docking plate (8) is connected to the lifting groove (24) by sliding up and down, and the rectangular block is connected to the vertical groove by sliding up and down; The upper end of the docking plate (8) is recessed downward to form a concave contraction groove (81), and a movable plate (82) is slidably connected in the concave contraction groove (81). The upper end of the movable plate (82) is symmetrically protruding upward to form an extension plate, and the upper ends of the two extension plates respectively penetrate the two ends of the concave contraction groove (81) and extend to the outside. An elastic sheet (83) is installed on one side of an extension plate at the upper end of the movable plate (82), and one side of the elastic sheet (83) abuts against the inner side of the concave contraction groove (81). The upper end of one of the extension plates at the upper end of the movable plate (82) is fixedly connected to a docking block (84), and the upper end of the other extension plate side is fixedly connected to an extrusion block (85). The upper ends of the docking block (84) and the extrusion block (85) are both sloped, and an annular transmission plate (73) is fixedly sleeved on the upper end of the regular polygonal column (53) above the docking block (84).

10. A mine blasting hole opening device according to claim 9, characterized in that: A pushing mechanism is installed above the docking mechanism, and the pushing mechanism includes a lower pressing block (91) arranged above the extrusion block (85). A third hydraulic cylinder (9) is fixedly installed on the upper end of the L-shaped support plate (23), and a piston rod of the third hydraulic cylinder (9) passes downward through the L-shaped support plate (23) and is fixedly connected to the upper end of the lower pressing block (91).

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