CN117188973A - Efficient open pit coal mine down-the-hole punching device and method - Google Patents

Abstract

The application discloses a high-efficiency open pit coal mine down-the-hole drilling device, which comprises a supporting frame, wherein a lifting component is arranged in the supporting frame, the lower end of the lifting component is provided with a drilling component, the drilling component comprises a plurality of roller cones, and the device also comprises an adjusting mechanism, and the adjusting mechanism can simultaneously adjust the roller cones to move in the horizontal direction so as to adjust the distance between the roller cones, thereby adjusting the drilling diameter of the drilling component. The application simultaneously adjusts the plurality of the roller cones to move in the horizontal direction through the adjusting mechanism, and changes the distance between the plurality of the roller cones, so that the plurality of the roller cones drill holes with different diameters.

Description

Efficient open pit coal mine down-the-hole punching device and method

Technical Field

The application relates to the technical field of coal mine drilling, in particular to a high-efficiency open pit coal mine down-the-hole drilling device and method.

Background

The drilling of the down-the-hole is to drill holes in the coal mine ore body and inject explosive drugs by using the blasting technology in the open pit coal mine exploitation so as to realize the crushing and the sampling of the ore. The down-the-hole is cut in the open pit coal mine, so that ore can be crushed after explosive substances are filled, the mining efficiency is improved, the ore quality is controlled while the cost is reduced, and compared with the traditional mechanical mining, the down-the-hole is cut to blast ore, so that the damage to the ground surface and the surrounding environment is reduced, and the land occupation and the soil pollution are reduced.

The patent application with the name of a pressure relief hole reducing device and a construction method thereof is disclosed as CN114753767A, and the publication date is 2022, 7 and 15, and comprises a drill bit and a drill rod, wherein the drill bit comprises a drill point, a drill body and a drill shank, and one end of the drill point is provided with a plurality of layers of cutting picks with different diameters; the drill body is positioned between the drill point and the drill handle, one end of the drill body is hinged with the other end of the drill point, and the outer surface of the other end of the drill body is provided with a helical blade; the drill rod is provided with a helical blade which is in the same direction as the drill body, the front end of the drill rod is provided with a containing groove along the axis, and the drill shank can be inserted into the containing groove along the coaxial line direction in a matching way and is fixedly connected through a pin rod. The application has the advantages that compared with the common drill bit, the coal discharging quantity is maximum at the same pressure relief depth, the coal density in a coal body stress peak area can be effectively reduced, the advanced supporting stress of a stope face and the lateral supporting pressure of an adjacent goaf can be reduced, meanwhile, the application is used for drilling in a roadway, the distance between the pressure relief holes can be increased, the construction quantity of the pressure relief holes is reduced, the labor and equipment cost is reduced, and the weakening of the supporting strength is further reduced.

The prior art has the defects that the prior art generally drills the ground through the existing drill bit, then the hole drilled by the existing drill bit is reamed through the deformation mechanism which is additionally arranged, and the existing deformation mechanism is frequently deformed and restored in continuous reaming operation, so that the parts of the deformation mechanism are easy to shake or damage.

Disclosure of Invention

The application aims to provide a high-efficiency open pit coal mine down-the-hole drilling device and method, which solve the defects in the prior art.

In order to achieve the above object, the present application provides the following technical solutions: the utility model provides an efficient open pit coal mine down-hole drill down device, includes the support frame, the inside lifting unit that is provided with of support frame, the lifting unit lower extreme is provided with the punching unit, the punching unit includes a plurality of gear wheels, still includes adjustment mechanism, adjustment mechanism can simultaneously adjust a plurality of the gear wheels remove in the horizontal direction in order to adjust a plurality of distance between the gear wheels, thereby adjust the drilling diameter of punching unit.

Above-mentioned, the lifting assembly includes rotary motion spare, rotary motion spare's output is provided with the bolster, the bolster can warp in order to avoid rotary motion spare load too big emergence damage, the bolster outside is provided with first gear.

Above-mentioned, the bolster includes the dead lever, the dead lever outside is provided with the slip cap with the gliding mode, the dead lever outside with the slip cap inboard evenly is provided with the rectangle piece, the dead lever with the slip cap passes through rectangle piece intermeshing, just the dead lever with be provided with first elastic component between the slip cap.

Above-mentioned, the punching component includes vertical pole, vertical pole lower extreme cover has connect fixed cover, fixed cover lower extreme is provided with the swivel cap with the pivoted mode, swivel cap lower extreme is provided with a plurality of sliding frames with the gliding mode, every with the pivoted mode is provided with a cone on the sliding frame, swivel cap is driven by actuating mechanism and is rotated in order to drive a plurality of the rotatory drilling of cone.

Above-mentioned, vertical pole lower extreme is provided with two guide bars side by side, the guide bar with be provided with the second elastic component between the fixed cover, the second elastic component is used for buffering vertical pole when drilling.

The sliding frame is internally provided with a third elastic piece, and the third elastic piece is used for driving the sliding frame to reset.

Above-mentioned, actuating mechanism includes the mounting panel, mounting panel lower extreme one side is provided with rotary driving spare, rotary driving spare's output is provided with the second gear, the inside teeth of a cogwheel that evenly is provided with along its circumference in swivel case upside, the second gear pass through the teeth of a cogwheel with swivel case meshes mutually.

Above-mentioned, adjustment mechanism includes the extension rod, the extension rod sets up the one end in the swivel sleeve is provided with the worm, be provided with the worm wheel in the swivel sleeve, the one end that the worm wheel is close to vertical pole is provided with the threaded rod, the threaded rod outside is provided with the sliding plate, the sliding plate lower extreme is provided with a plurality of connecting rods, the connecting rod lower extreme is provided with the clamp plate.

Above-mentioned, the punching assembly still includes a plurality of bracing pieces, every bracing piece lower extreme is provided with two outlet ducts side by side.

The method for punching down-the-hole in the open pit coal mine is high in efficiency, the down-the-hole punching device of the open pit coal mine is used for punching down-the-hole in the open pit coal mine, and the aperture of the down-the-hole punching is adjusted through the adjusting mechanism in the down-the-hole punching process.

In the technical scheme, the application has the beneficial effects that: the application adjusts the diameters of the drilled holes by directly adjusting the diameters (roller cone distances) of the drill bits without arranging a separate deformation mechanism for drilling, thereby reducing or even avoiding the situation that the drill bits are damaged when the deformation mechanism changes the drilling diameters.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic perspective view of a down-the-hole drilling apparatus according to an embodiment of the present application;

FIG. 2 is a top view of a down-the-hole drilling apparatus according to another embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with another embodiment of the present application;

fig. 4 is a schematic view of a partial perspective structure among a buffer member, a first gear and a vertical rod according to another embodiment of the present application.

FIG. 5 is a partial cross-sectional view of a lift assembly according to another embodiment of the present application;

FIG. 6 is a schematic perspective view of a cone, a support rod, an outlet pipe, an extension rod, a vertical rod, a fixed sleeve, a rotating sleeve and a sliding frame according to another embodiment of the present application;

fig. 7 is a cross-sectional view of a cutting assembly provided in accordance with another embodiment of the present application;

FIG. 8 is a partial cross-sectional view of a rotating sleeve, an elongated rod, a worm and a worm gear according to another embodiment of the present application;

FIG. 9 is an enlarged schematic view of a portion at M of FIG. 3 according to another embodiment of the present application;

FIG. 10 is an enlarged view of a portion N of FIG. 7 according to another embodiment of the present application;

fig. 11 is a schematic perspective end view of a drill bit according to another embodiment of the present application.

Reference numerals illustrate:

1. a support frame; 2. a lifting assembly; 21. a rotary motion member; 22. a buffer member; 221. a fixed rod; 222. a sliding sleeve; 223. rectangular blocks; 224. a first elastic member; 23. a first gear; 3. drilling an assembly; 30. a roller cone; 301. a support rod; 302. an air outlet pipe; 31. an adjusting mechanism; 311. an extension rod; 312. a worm; 313. a worm wheel; 314. a threaded rod; 315. a sliding plate; 316. a connecting rod; 317. a pressing plate; 32. a vertical rod; 321. a guide rod; 322. a second elastic member; 33. a fixed sleeve; 34. a rotating sleeve; 35. a carriage; 351. a horizontal section; 352. an inclined section; 353. a third elastic member; 340. a protruding plate; 36. a driving mechanism; 361. a mounting plate; 362. a rotary driving member; 363. a second gear; 37. a mounting frame; 38. a drill bit; 39. an extrusion plate; 310. a first reset member; 371. a round bar; 372. an extension rod; 373. a second reset member; 374. and (5) connecting pipes.

Detailed Description

In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 11, the efficient open pit coal mine down-hole drilling device provided by the embodiment of the application comprises a support frame 1, wherein a lifting assembly 2 is arranged in the support frame 1, a drilling assembly 3 is arranged at the lower end of the lifting assembly 2, the drilling assembly 3 comprises a plurality of roller cones 30, and the adjusting mechanism 31 is further arranged, and the adjusting mechanism 31 can simultaneously adjust the roller cones 30 to move in the horizontal direction so as to adjust the distance between the roller cones 30, thereby adjusting the drilling diameter of the drilling assembly 3.

Specifically, four corners of the lower end of the supporting frame 1 are respectively provided with a leveling mechanism, the leveling mechanisms comprise adjusting rods which are arranged on the supporting frame 1 in a threaded fit mode, the upper end of each adjusting rod is respectively provided with a plurality of roller cutters 30, preferably three, the adjusting members are slidably arranged on the supporting frame 1, the lower end of each adjusting rod is provided with a supporting disc through a spherical hinge, so that the supporting disc can adapt to rugged topography, the supporting frame 1 is also provided with a horizontal sensor, the adjusting members drive the adjusting rods to adjust the supporting frame 1 to keep horizontal motion based on the detection result of the horizontal sensor, the lifting assembly 2 is arranged in the middle of the supporting frame 1 in a sliding mode, the lower end of the lifting assembly 2 is provided with a cutting assembly 3, the cutting assembly 3 comprises a plurality of roller cutters 30, preferably three, the adjusting mechanisms 31 are arranged inside the cutting assembly 3, the adjusting mechanisms 31 can move in the vertical direction, the adjusting mechanisms 31 can be converted into a plurality of cutting assemblies in the vertical direction, the roller cutters can be driven to move in the horizontal direction, the roller cutters 30 can be driven to move to the vertical direction, the drilling assembly can be conveniently and the drilling hole can be conveniently adjusted to the horizontal position of the supporting frame 1 through the drilling assembly 1, the lifting assembly is driven to the horizontal drilling assembly 3, the conventional drilling device is driven to move to the lifting assembly 30, the conventional drilling device is driven to move in the vertical lifting assembly 3, the drilling assembly is required to move the roller cutter assembly 30, the lifting assembly is conveniently and the drilling assembly is driven to move up and down to the drilling assembly 30 in the drilling assembly is in the vertical state 3 through the drilling assembly is in the drilling hole 3 and the drilling hole is in the drilling hole in the drilling condition. And before drilling, the hole diameter of the drilling assembly 3 (that is, the distance between a plurality of the roller cones 30) is adjusted by the adjusting mechanism 31, so that the roller cones 30 drill holes with different diameters, and the applicability of the equipment is improved.

According to the high-efficiency open pit coal mine down-the-hole drilling device and method provided by the embodiment of the application, the adjustment mechanism 31 is used for simultaneously adjusting the plurality of the roller cones 30 to move in the horizontal direction, so that the distance between the plurality of the roller cones 30 is changed, and the plurality of the roller cones 30 drill holes with different diameters.

In another embodiment of the present application, the lifting assembly 2 includes a rotary motion member 21, such as a motor, an output end of the rotary motion member 21 is provided with a buffer member 22, the buffer member 22 is capable of deforming to avoid damage caused by excessive load of the rotary motion member 21, a first gear 23 is disposed on an outer side of the buffer member 22, specifically, the rotary motion member 21 is fixedly connected to the support frame 1, the output end of the rotary motion member 21 is provided with the first gear 23 through the buffer member 22, the first gear 23 is meshed with a rack on one side of a tooth structure, such as a vertical rod 32, on the drilling assembly 3, that is, the first gear 23 is capable of driving the drilling assembly 3 to lift in a vertical direction, in this embodiment, after the position of the support frame 1 is determined and leveling is performed, the drilling assembly 3 is driven to rotate to drill a hole by the cutter 30, in a drilling process, the rotary motion member 21 is driven to rotate the first gear 23, so that the first gear 23 drives the drilling assembly 3 to drive the vertical cutter 3 to descend in a vertical direction, and thus the cutter 30 is required to rotate to drill the hole 30; and because the ground is too hard in the drilling process, the rotary motion piece 21 is difficult to drive the drilling assembly 3 to descend for drilling through the first gear 23, so that the load born by the rotary motion piece 21 when driving the drilling assembly 3 to descend is gradually increased, when the load is too large, the rotary motion piece 21 and/or a transmission mechanism is possibly damaged, at the moment, the buffer piece 22 is deformed and rotated, so that the rotary motion piece 21 can only drive the buffer piece 22 to deform and rotate, the first gear 23 cannot drive the drilling assembly 3 to ascend and descend in the vertical direction, and the situation that the rotary motion piece 21 is damaged due to the too large load is avoided.

In another embodiment provided by the application, the buffer 22 comprises a fixed rod 221, a sliding sleeve 222 is arranged on the outer side of one end of the fixed rod 221 in a sliding manner, but a plurality of rectangular blocks 223 are uniformly arranged between the fixed rod 221 and the sliding sleeve 222, namely the outer side of the fixed rod 221 and the inner side of the sliding sleeve 222, the fixed rod 221 and the sliding sleeve 222 are meshed with each other through the rectangular blocks 223, a first elastic piece 224 such as a spring is arranged between the fixed rod 221 and the sliding sleeve 222, the fixed rod 221 is fixedly connected to the output end of the rotary motion piece 21, a sliding sleeve 222 is arranged on the outer side of the fixed rod 221 in a sliding manner, the sliding sleeve 222 is fixedly connected to the middle part of the first gear 23, a plurality of rectangular blocks 223 are uniformly arranged on the outer side of the fixed rod 221 and the inner side of the sliding sleeve 222, the fixed rod 221 and the sliding sleeve 222 are meshed with each other through the rectangular blocks 223, the rectangular blocks 223 form an acute angle with the fixed rod 221 and the sliding sleeve 222 along the length direction, preferably an acute angle of 3 DEG is formed between the fixed rod 221 and the sliding sleeve 222, and the sliding sleeve 222 can be gradually separated from the inner side of the fixed rod 221 along the sliding sleeve 222 in a large angle of 3 DEG, and the sliding sleeve 223 can be gradually rotated along the sliding sleeve 222 while a large included angle between the fixed rod and the fixed rod 221 is ensured, and the sliding sleeve 222 can be gradually and the fixed rod can be rotated along the sliding sleeve 222 along the sliding sleeve 3 DEG by 3 DEG while the sliding sleeve 3 DEG and the sliding sleeve is gradually, and the fixed rod is simultaneously, and the sliding sleeve 222 is gradually is arranged along the sliding sleeve 3, at this time, the sliding sleeve 222 may drive the first gear 23 to rotate outside the fixed rod 221, the deformation pressure between the fixed rod 221 and the sliding sleeve 222 is slightly greater than the maximum pressure of the rated load of the rotary motion member 21, the first elastic member 224 is used for resetting the sliding sleeve 222, in this embodiment, during the drilling process of the cutter 30, the rotary motion member 21 drives the drilling assembly 3 to descend through the first gear 23 so as to drill a deep hole, if the drilling assembly 3 encounters a hard ground, the cutter 30 is difficult to continue drilling downwards, in order to avoid the situation that the rotary motion member 21 may be damaged due to the abrupt increase of the load, the rotary motion member 21 may drive the rectangular block 223 on the fixed rod 221 to squeeze the rectangular block 223 in the sliding sleeve 222, the sliding sleeve 222 drives the first gear 23 to slide along the fixed rod 221 so that the rectangular block 223 on the fixed rod 221 and the rectangular block 222 in the sliding sleeve are driven to descend, if the cutter 30 encounters a hard ground, and in this case, the rotary motion member 21 and the rectangular block 223 in the sliding sleeve 222 is driven by the elastic member 223 presses down, and the elastic block 223 in the sliding sleeve 222 is simultaneously, and the two kinds of the elastic members are prevented from pressing the sliding sleeve 222 from pressing down, thereby the elastic member 223 is simultaneously, and the elastic sleeve 223 is kept under the condition that the compression force is increased under the condition that the sliding sleeve 223 and the sliding sleeve 21 is pressed down and the sliding sleeve 21 is damaged. In the first working state, the rotary motion member 21 drives the vertical rod 32 to normally descend through the buffer member 22 and the first gear 23, the downward force provided by the rotary motion member 21 to the vertical rod 32 can ensure that the cone 30 can normally drill, that is, the load born by the rotary motion member 21 is within the rated load, the buffer member 22 cannot deform, and the buffer member 22 is only equivalent to a rod; in the second working state, in the first working state, the roller cone 30 encounters harder ground or rock when drilling, the maximum pressure of the load born by the rotary motion member 21 exceeds the deformation pressure of the buffer member 22, at this time, the buffer member 22 can deform to slide and rotate, and under the action of the first elastic member 224, the buffer member 22 is continuously switched between resetting and sliding rotation to avoid the situation that the rotary motion member 21 is damaged due to abrupt increase of the load.

In another embodiment provided by the application, the cutting assembly 3 comprises a vertical rod 32, a fixed sleeve 33 is sleeved at the lower end of the vertical rod 32, a rotating sleeve 34 is rotatably arranged at the lower end of the fixed sleeve 33, a plurality of sliding frames 35 are horizontally arranged at the lower end of the rotating sleeve 34 in a sliding manner, one roller 30 is rotatably arranged on each sliding frame 35, the rotating sleeve 34 is driven to rotate by a driving mechanism 36 to drive the roller 30 to drill holes in a rotating manner, the vertical rod 32 is arranged in the middle of the supporting frame 1 in a sliding manner, racks are arranged at the side edges of the vertical rod 32, the first gear 23 is meshed with the vertical rod 32 through the racks, the width of the racks is larger than the thickness of the first gear 23, therefore, during the deformation process of the buffer 22, the first gear 23 is always meshed with the vertical rod 32 through the racks, the rotary moving member 21 can drive the vertical rod 32 to lift through the first gear 23, a fixed sleeve 33 is arranged at the lower end of the vertical rod 32 in a sliding manner, a rotary sleeve 34 is arranged at the lower end of the fixed sleeve 33 in a rotating manner, balls are preferably arranged between the rotary sleeve 34 and the fixed sleeve 33, the balls facilitate the rotary sleeve 34 to rotate around the fixed sleeve 33 so as to reduce resistance, the sliding frame 35 is preferably 3, the sliding frame 35 comprises a horizontal section 351 and an inclined section 352 which are connected, the horizontal section 351 is uniformly arranged at the lower end of the rotary sleeve 34 in a horizontal sliding manner along the radial direction of the horizontal section, one roller 30 is arranged at the lower side of each inclined section 352 in a rotating manner, the driving mechanism 36 is arranged at the fixed sleeve 33, the driving component is used for driving the inner side wall of the rotary sleeve 34 to rotate, in this embodiment, during drilling, the rotary motion member 21 drives the vertical rod 32 to descend through the first gear 23, so that the vertical rod 32 drives the fixed sleeve 33 and the rotary sleeve 34 to descend, thereby enabling the rotary sleeve 34 to drive the roller cone 30 to descend through the sliding frame 35 to provide the downward pressure of drilling, during the process that the rotary motion member 21 drives the roller cone 30 to descend, the driving mechanism 36 drives the rotary sleeve 34 to rotate around the fixed sleeve 33, so that the rotary sleeve 34 drives the roller cone 30 to passively rotate through the sliding frame 35 to drill a hole on the ground (the roller cone 30 does not have an active driving structure, but relies on the rotation of the rotary sleeve 34 to rub the roller cone 30 with a drilling object to passively rotate), the rotary motion member 21 can drive the vertical rod 32 to ascend and descend along the fixed sleeve 33 while drilling the roller cone 30, thereby avoiding damage to the rotary motion member 21 and simultaneously enabling the lifting of the vertical rod 32 to drive the roller cone 30 to rotate around the fixed sleeve 33 to passively rotate so as to drill a hole on the ground (the roller cone 30 is not actively driven by the rotation of the rotary sleeve 34, but the friction of the roller cone 30 is rubbed by the rotary cone 30 to passively rotate by the rotation of the rotary cone, thereby forming a hard impact or the rock 30 to continue the drilling; after the drilling is completed, the rotary motion piece 21 is reversed, so that the rotary motion piece 21 drives the first gear 23 to rotate reversely, and the first gear 23 drives the vertical rod 32 to ascend, and thus the vertical rod 32 drives the sliding frame 35 and the roller cone 30 to ascend through the fixed sleeve 33 and the rotary sleeve 34, so that the down-the-hole drilling device moves from the position after the drilling is completed.

In another embodiment provided by the application, two guide rods 321 are arranged at the lower end of the vertical rod 32 in parallel, a second elastic piece 322 such as a spring is arranged between the guide rods 321 and the fixed sleeve 33, the second elastic piece 322 is used for buffering the vertical rod 32 when drilling, specifically, two slide ways are arranged at the inner side of the fixed sleeve 33 in parallel, the guide rods 321 are arranged in the slide ways in a sliding manner, a second elastic piece 322 is arranged between the guide rods 321 and the fixed sleeve 33, the second elastic piece 322 is arranged in the slide ways, in this embodiment, the rotary motion piece 21 drives the vertical rod 32 to descend through the first gear 23, when encountering hard ground, the rotary motion piece 21 drives the vertical rod 32 and the guide rods 321 to squeeze the second elastic piece 322 to descend along the slide ways of the fixed sleeve 33, the second elastic piece 322 plays a role in resetting the guide rods 321, and simultaneously, the second elastic piece 322 buffers the vertical rod 32, and the rotary motion piece 21 is prevented from being damaged by the rated load for a long time; the guide rod 321 guides the vertical rod 32 while preventing the fixing sleeve 33 from rotating around the vertical rod 32.

In another embodiment of the present application, a third elastic member 353, such as a spring, is disposed in the sliding frame 35, the third elastic member 353 is configured to drive the sliding frame 35 to return, specifically, an installation space is disposed at a lower side of a middle portion of each horizontal segment 351, each installation space is disposed with a plurality of installation grooves, preferably 3 installation grooves, each installation groove is disposed in a sliding manner, one side of each installation groove is disposed with a protruding plate 340, the protruding plates 340 are disposed in the installation spaces, the third elastic member 353 is connected to one side of each horizontal segment 351 and one side of the protruding plate 340, in this embodiment, before drilling holes of the roller cones 30, the adjustment mechanism 31 is adjusted to squeeze the horizontal segments 351 by adjusting the adjustment mechanism 31, and simultaneously, under the action of the third elastic member 353, the horizontal segments 351 are disposed in a sliding manner, and the distance between the roller cones 30 is adjusted by adjusting the horizontal segments 351 by sliding along the installation grooves.

In another embodiment of the present application, the driving mechanism 36 includes a mounting plate 361, a rotary driving member 362, such as a motor, is disposed at one side of the lower end of the mounting plate 361, a second gear 363 is disposed at the output end of the rotary driving member 362, gear teeth are uniformly disposed along the circumferential direction inside the upper side of the rotary sleeve 34, the second gear 363 is meshed with the rotary sleeve 34 through the gear teeth, specifically, the mounting plate 361 is fixedly connected to the lower side inside the inner side of the fixed sleeve 33, gear teeth are disposed along the circumferential direction inside the upper end of the rotary sleeve 34, the second gear 363 is meshed with the rotary sleeve 34 through the gear teeth, in this embodiment, when the cone 30 is drilled, the rotary driving member 362 drives the second gear 363 to rotate, so that the second gear 363 drives the rotary sleeve 34 to rotate around the fixed sleeve 33, and thus the rotary sleeve 34 can drive a plurality of cones 30 to rotate through the sliding frame 35, so that a plurality of holes are drilled on the ground.

Further, the piercing assembly 3 further comprises a mounting frame 37, a drill bit 38 is slidably disposed in the mounting frame 37, a pressing plate 39 is disposed at the upper end of the drill bit 38, the pressing plate 39 is abutted against the bottom end of the vertical rod 32, a first reset member 310 such as a spring is disposed between the mounting plate 361 and the pressing plate 39, specifically, the mounting frame 37 is fixedly connected in the rotary sleeve 34, the mounting frame 37 is sleeved outside the drill bit 38, a circular hole is disposed in the middle of the mounting plate 361, the mounting plate 361 is sleeved outside the drill bit 38 through the circular hole, so that the drill bit 38 can slide and rotate in the mounting frame 37 and the mounting plate 361, the pressing plate 39 is slidably disposed at the upper side inside the fixed sleeve 33, the upper end of the pressing plate 39 is abutted against the lower end of the vertical rod 32, gear teeth are also disposed at the upper side of the drill bit 38, the second gear 363 is meshed with the upper side of the drill bit 38 through a spring, and the axial dimension of the second gear 363 is larger than that of the second gear 363, when the drill bit 38 is always lowered, the drill bit 38 can always slide and the second gear 363 is driven by the rotary sleeve 22, the elastic deformation of the rotary sleeve 22 can be carried out, the elastic deformation of the rotary sleeve is absorbed by the rotary sleeve 22, and the elastic deformation of the rotary sleeve is avoided, and the rotary sleeve 22 can be repeatedly deformed, and the rotary deformation of the rotary sleeve is realized under the conditions of the rotation of the rotary sleeve 22 and the rotary sleeve 22, the rotary motion piece 21 is prevented from being damaged, and meanwhile, the vertical rod 32 is lifted to drive the cone 30 to impact the hard ground or rock, so that the hard ground or rock is broken, the cone 30 continues to drill, if the cone 30 is difficult to break the hard ground or rock, the vertical rod 32 and the guide rod 321 can squeeze the second elastic piece 322 to descend along the fixed sleeve 33, the vertical rod 32 can squeeze the squeezing plate 39 when descending, the squeezing plate 39 squeezes the first reset piece 310 to enable the cone 38 to descend, the bottom end of the cone 38 is leveled with the cone 30, even exceeds 30, the cone 38 is used as a main force to break the diamond by vibrating and rotating, at this time, the rotary driving piece 362 drives the cone 38 to rotate through the second gear 363, so that the cone 38 continues to break the hard ground or rock, and accordingly, the cone 30 can continue to break the hard ground or rock, the first reset piece 310 can be pushed by the vertical rod 32, the first reset piece is driven by the guide rod 32 to continuously move, and the soft cone is reduced when the cone 38 is driven by the first reset piece 21 to continuously break the hard ground or rock, and the soft cone 38 can be driven by the elastic piece 322 when the first reset piece is driven by the first elastic piece 32 to continuously to move, and the soft ground or the soft ground is driven by the second gear piece 322 to continuously.

In another embodiment provided by the application, the adjusting mechanism 31 comprises an extension rod 311, one end of the extension rod 311, which is arranged in the rotating sleeve 34, is provided with a worm 312, the rotating sleeve 34 is internally provided with a worm wheel 313, one end of the worm wheel 313, which is close to the vertical rod 32, is provided with a vertically arranged threaded rod 314, the outer side of the threaded rod 314 is provided with a sliding plate 315, the lower end of the sliding plate 315 is provided with a plurality of connecting rods 316, the number of the connecting rods 316 is preferably 3, the lower end of the connecting rod 316 is provided with a pressing plate 317, in particular, one side of the middle part of the rotating sleeve 34 is provided with the extension rod 311 in a rotating manner, one end of the extension rod 311 is provided with a worm 312, the rotating sleeve 34 is internally provided with a worm wheel 313 in a rotating manner, the worm 312 is meshed with the worm wheel 313, the other end of the extension rod 311 is provided with an inner hexagonal groove so as to drive the worm 312 to rotate through the extension rod 311, the inner hexagonal groove can drive the extension rod 311 to rotate by related personnel through a tool, the upper end of the worm wheel 313 is fixedly connected with a threaded rod 314, the outer side of the threaded rod 314 is provided with a sliding plate 315 in a threaded fit mode, the sliding plate 315 is arranged in the middle of the rotating sleeve 34 in a sliding mode, the middle of the sliding plate 315 is also provided with a round hole, the sliding plate 315 is sleeved on the outer side of the drill bit 38 through the round hole, namely the drill bit 38 can rotate and slide in the sliding plate 315, the lower side of the inner part of the rotating sleeve 34 is uniformly provided with a plurality of guide sleeves along the circumferential direction of the guide sleeve, the number of the guide sleeves is preferably 3, each guide sleeve is internally provided with a pressing plate 317 in a sliding mode, the lower end of the pressing plate 317 is provided with an inclined plane or a round angle, one end upper side of the horizontal section 351 close to the axis of the rotating sleeve 34 is provided with an inclined plane, in this embodiment, before drilling the hole in the cone 30, the extension rod 311 is manually driven by the extension rod 311 to rotate the worm 312, so that the worm 312 drives the worm wheel to rotate, so that the worm wheel drives the sliding plate 315 through the threaded rod 314 to slide along the inner wall of the rotating sleeve 34, so that the sliding plate 315 drives the pressing plates 317 connected with the sliding plate 315 through the connecting rods 316 arranged at the lower end to lift along the guiding sleeve, so that the pressing plates 317 simultaneously squeeze the inclined surfaces of the horizontal segments 351 respectively arranged at the lower end of the pressing plates, so that the horizontal segments 351 slide along the mounting grooves, and further drive the cones 30 to approach or depart from each other through the inclined segments 352, so that the extension rod 311 can adjust the drilling diameters of the cones 30 through the pressing plates 317, and simultaneously, due to the self-locking property of the structure of the worm wheel 313 and the worm wheel, the drilling diameters of the cones 30 are adjusted, the drilling diameters of the cones are difficult to be changed, and the drilling cost of the holes is difficult to be reduced.

In another embodiment of the present application, the piercing assembly 3 further includes a plurality of support rods 301, two air outlet pipes 302 are disposed at the lower end of each support rod 301 in parallel, specifically, a plurality of support rods 301 are uniformly and fixedly connected to the outer side of the fixing sleeve 33 along the circumferential direction of each support rod 301, the support rods 301 are preferably 3, the middle of each support rod 301 is of a hollow structure, the upper end of each support rod 301 is connected to an air pump (not shown in the figure) through an air pipe, the two air outlet pipes 302 are both communicated with the hollow structure in the middle of the support rod 301, and the two air outlet pipes 302 are hoses, in this embodiment, when the cutter 30 is drilled, the fixing sleeve 33 extends into the drilled hole of the cutter 30, so that the fixing sleeve 33 drives the support plate to enter the drilled hole, and the air pump pumps air into the hollow structure of the support rod 301 through the air pipes, so that the pumped air pumps out the cutter 30 through the air pipes, thereby facilitating continuous drilling of the cutter 30 or the cutter 30, and avoiding the cutter 30 from being difficult to clean the surface of the cutter 30 due to the difficulty in cleaning the surface of the cutter 30.

Further, two round rods 371 are arranged above the mounting plate 361 in parallel, an extension rod 372 is arranged in the round rods 371 in a sliding mode, the extension rod 372 is connected with the round rods 371 in a dynamic sealing mode, a second reset piece 373 such as a spring is arranged between the extension rod 372 and the round rods 371, a placing space is arranged in the round rods 371, the second reset piece 373 is arranged in the placing space, the placing space is communicated with a hollow structure of the support rod 301 through a connecting pipe 374, the extension end of the extension rod 372 is connected with the lower end of the extrusion plate 39, in particular, in the process of drilling by the roller cone 30, an air pump is used for conveying air into the support rod 301 through an air pipe, and air pumped into the hollow structure of the support rod 301 is sprayed out through the air outlet pipe 302 so as to clean and clear up the surface of the roller cone 30, meanwhile, a part of air pumped into the hollow structure of the support rod 301 can enter the placing space through the connecting pipe 374, so that the part of air entering the placing space is matched with the second reset piece 373, the air in the placing space is communicated with the hollow structure of the support rod 371, the second reset piece 373, the air can be extruded by the air pump to ensure that the pressure of the drill bit can be increased by the air pump to ensure that the drill bit 32 can be extruded by the second reset piece to be pushed down by the extrusion plate 32, and the pressure of the drill bit 32 can be increased, and the drill bit can be extruded by the vertical rod 32, and the pressure can be pushed by the extrusion plate 32.

In another embodiment provided by the application, the open pit coal mine cutting down-the-hole device is used for cutting down-the-hole of the open pit coal mine, and the hole diameter of the cutting down-the-hole is adjusted through the cutting assembly 3 in the down-the-hole cutting process.

While certain exemplary embodiments of the present application have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the application, which is defined by the appended claims.

Claims (10)

1. The utility model provides an efficient open pit coal mine down-the-hole drill device, includes the support frame, the inside lifting unit that is provided with of support frame, the lifting unit lower extreme is provided with the punching subassembly, the punching subassembly includes a plurality of gear wheels, its characterized in that:

the drilling assembly further comprises an adjusting mechanism capable of adjusting the distance between the plurality of the roller cones to adjust the drilling diameter of the drilling assembly.

2. A high efficiency open pit coal mine boring device according to claim 1, wherein the lifting assembly comprises a rotary motion member, the output end of the rotary motion member is provided with a buffer member, the buffer member is deformable to avoid damage caused by excessive load of the rotary motion member, and a first gear is arranged outside the buffer member.

3. The efficient open pit coal mine drilling down-the-hole device according to claim 2, wherein the buffer member comprises a fixed rod, a sliding sleeve is arranged on the outer side of the fixed rod in a sliding manner, rectangular blocks are uniformly arranged on the outer side of the fixed rod and the inner side of the sliding sleeve, the fixed rod and the sliding sleeve are meshed with each other through the rectangular blocks, and a first elastic member is arranged between the fixed rod and the sliding sleeve.

4. A high efficiency open pit coal mine drilling down-the-hole apparatus according to claim 1, wherein the drilling assembly comprises a vertical rod, a fixed sleeve is sleeved at the lower end of the vertical rod, a rotary sleeve is rotatably provided at the lower end of the fixed sleeve, a plurality of sliding frames are slidably provided at the lower end of the rotary sleeve, a roller is rotatably provided on each sliding frame, and the rotary sleeve is driven to rotate by a driving mechanism to drive a plurality of roller to drill holes in rotation.

5. The efficient open pit coal mine drilling down-the-hole device according to claim 4, wherein two guide rods are arranged at the lower end of the vertical rod in parallel, a second elastic piece is arranged between the guide rods and the fixing sleeve, and the second elastic piece is used for buffering the vertical rod during drilling.

6. The efficient open pit coal mine drilling down-the-hole device according to claim 4, wherein a third elastic member is arranged in the sliding frame and is used for driving the sliding frame to reset.

7. The efficient open pit coal mine drilling down-the-hole device according to claim 4, wherein the driving mechanism comprises a mounting plate, a rotary driving member is arranged on one side of the lower end of the mounting plate, a second gear is arranged at the output end of the rotary driving member, gear teeth are arranged in the upper side of the rotary sleeve along the circumferential direction of the rotary sleeve, and the second gear is meshed with the rotary sleeve through the gear teeth.

8. The efficient open pit coal mine drilling down-the-hole device according to claim 4, wherein the adjusting mechanism comprises an extension rod, one end of the extension rod, which is arranged in the rotary sleeve, is provided with a worm, a worm wheel is arranged in the rotary sleeve, one end of the worm wheel, which is close to the vertical rod, is provided with a threaded rod, a sliding plate is arranged on the outer side of the threaded rod, a plurality of connecting rods are arranged at the lower end of the sliding plate, and a pressing plate is arranged at the lower end of the connecting rod.

9. A high efficiency open pit coal mine drilling down-the-hole assembly as defined in claim 1, wherein the drilling assembly further comprises a plurality of support rods, each of the support rods having two outlet pipes disposed in parallel at a lower end thereof.

10. A method for efficiently cutting down-the-hole in an open pit coal mine, characterized in that the open pit coal mine is cut down-the-hole by the device for cutting down-the-hole in an open pit coal mine according to any one of claims 1 to 9, and the aperture of the cut down-the-hole is adjusted by an adjusting mechanism during the cutting down-the-hole.