CN115538937A - Long-distance horizontal collapse-preventing drilling equipment for soft coal seam in underground coal mine - Google Patents
Long-distance horizontal collapse-preventing drilling equipment for soft coal seam in underground coal mine Download PDFInfo
- Publication number
- CN115538937A CN115538937A CN202211129479.XA CN202211129479A CN115538937A CN 115538937 A CN115538937 A CN 115538937A CN 202211129479 A CN202211129479 A CN 202211129479A CN 115538937 A CN115538937 A CN 115538937A
- Authority
- CN
- China
- Prior art keywords
- rod
- drill
- assembled
- long
- coal seam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 71
- 239000003245 coal Substances 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000002265 prevention Effects 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 claims description 4
- 239000011435 rock Substances 0.000 description 11
- 239000002699 waste material Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a long-distance horizontal collapse-preventing drilling device for a soft coal seam under a coal mine, which comprises: the left side and the right side of the equipment main frame are respectively and rotatably assembled with a left support frame and a right support frame; the liquid containing barrel is fixedly placed at the upper end of the left supporting frame; the upper surface of the equipment main frame is fixedly provided with a rod feeding device and a boom arm, and the inner side of the equipment main frame is rotatably provided with a drilling machine; the two groups of driving hydraulic cylinders are symmetrically arranged by taking the drilling machine as a center and are placed in the equipment main frame, a sleeve motor is fixedly assembled at the piston end of each driving hydraulic cylinder, a liquid passing pipe is arranged in each sleeve motor, and the other end of each liquid passing pipe is placed in the liquid containing barrel; the drilling machine is characterized in that a plurality of groups of mutually connected drill rods are coaxially fixed at the right end of the drilling machine, and a main drill bit is coaxially fixed at the tail ends of the plurality of groups of drill rods.
Description
Technical Field
The invention relates to the technical field of coal mine drilling collapse prevention, in particular to long-distance horizontal collapse prevention drilling equipment for a soft coal bed under a coal mine.
Background
The coal seam of most mines in China is poor in air permeability, the coal quality is soft, even has dynamic phenomena or outburst dangerousness, and the coal seam belongs to a soft coal seam, so that the drilling difficulty of pre-drainage drill holes of the coal seam is extremely high, hole collapse and drill sticking are serious, the drill holes are not deep drilled, the gas drainage effect is poor, the requirements of production and development cannot be well met, the normal operation of coal mine production is influenced, many coal mine enterprises start changing concepts, the traditional safety gas drainage is changed into utilization or productive gas drainage, various drainage technologies are combined, the gas drainage concentration and the gas drainage rate are improved in a scheme, the production safety is ensured, and energy is effectively utilized.
The existing horizontal drilling device is not provided with a fixing device generally, so that a drill rod deviates from the horizontal direction along with the increase of the drilling depth and even swings, a drill bit is further punctured, the hole wall is not straight, the hole wall can be broken, the drilled hole collapses, meanwhile, the hole which is drilled just now is softer, the existing device is not processed, the drilling and liquid inlet are carried out simultaneously, and the drilling fluid is easy to break the hole wall which is just formed while waste residues are brought out, so that the drilled hole collapses.
Therefore, it is necessary to provide a horizontal anti-collapse drilling device for long distance in soft coal seam under coal mine to solve the above problems.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme that the long-distance horizontal anti-collapse drilling equipment for the underground soft coal seam of the coal mine comprises:
the left side and the right side of the equipment main frame are respectively and rotatably assembled with a left support frame and a right support frame;
the liquid containing barrel is fixedly placed at the upper end of the left supporting frame;
the upper surface of the equipment main frame is fixedly provided with a rod feeding device and a boom arm, and the inner side of the equipment main frame is rotatably provided with a drilling machine;
the two groups of driving hydraulic cylinders are symmetrically arranged by taking the drilling machine as a center and are placed in the equipment main frame, a sleeve motor is fixedly assembled at the piston end of each driving hydraulic cylinder, a liquid passing pipe is arranged in each sleeve motor, and the other end of each liquid passing pipe is placed in the liquid containing barrel;
the drilling machine is characterized in that a plurality of groups of drill rods which are connected with each other are coaxially fixed at the right end of the drilling machine, and a main drill bit is coaxially fixed at the tail ends of the plurality of groups of drill rods.
Further, preferably, the right support frame includes:
the fixing block is fixedly assembled in the center of the right plane of the equipment main frame, the lower end of the fixing block is rotatably assembled with an adjusting plate, the upper end of the fixing block is fixedly assembled with a linear bearing, and the inner side of the linear bearing is coaxially assembled with a drill rod in a sliding manner;
one end of the hydraulic cylinder I is rotatably assembled on the upper end plane of the adjusting plate, and the other end of the hydraulic cylinder I is rotatably assembled at the lower end of the fixing block.
Further, as preferred, the fixed block both ends all rotate and are equipped with the pneumatic cylinder two, and two sets of the two other ends of pneumatic cylinder are fixed and are equipped with the sliding block, just the inboard embedding of sliding block has linear bearing, and its inside coaxial slip is equipped with the drilling rod.
Preferably, a driving motor is fixedly assembled on the left sides of the two ends of the sliding block, and an auxiliary drill bit is coaxially fixed on an output shaft of the driving motor.
Further, preferably, the auxiliary drill includes:
the drill rod is coaxially fixed on an output shaft of the driving motor, three track grooves pointing to the center are formed in the plane of the right end of the drill rod, stone breaking cutters are assembled on the track grooves in a sliding mode, and a dustproof shell is fixedly assembled in the center of the plane of the right end of the drill rod;
the dustproof shell is in a cubic shape, and a main gear and three sets of auxiliary gears are placed in the dustproof shell.
Further, preferably, the main gear is rotatably assembled on the plane of the right end of the drill rod, the three sets of the auxiliary gears are respectively rotatably assembled on the inner walls of the three side surfaces of the dustproof shell, and the main gear and the three sets of the auxiliary gears are in a meshed state.
Further, as preferred, the master gear is threaded and assembled with a screw, the other end of the screw is coaxially fixed with a hydraulic rod, the three sets of the pinion are coaxially fixed with screws, and the screws are in threaded fit with corresponding stone breaking cutters.
Further, preferably, a return spring is coaxially fitted between the main gear and the hydraulic rod.
Further, preferably, the rod continuing device includes:
the continuous rod base is fixedly placed at the upper end of the equipment main frame, the left side of the continuous rod base is rotatably assembled with a rotating frame, the upper end plane of the continuous rod base is rotatably assembled with a driving rod, and the other end of the driving rod is rotatably assembled on the lower surface of the rotating frame;
two sides of the upper end of the rotating frame are respectively provided with two groups of clamping jaws in a rotating mode in a mirror image mode, and the lower ends of the two groups of clamping jaws on each side are fixedly provided with opening and closing hydraulic cylinders.
Further, preferably, the tail end of the drill rod is coaxially and fixedly provided with a hole protecting assembly, and a plurality of groups of elastic hole protecting pads are fixedly arranged on the hole protecting assembly according to the rotating direction.
Compared with the prior art, the invention provides long-distance horizontal collapse-preventing drilling equipment for a soft coal seam under a coal mine, which has the following beneficial effects:
according to the invention, the auxiliary drill bit is arranged, in the process of drilling, the auxiliary drill bit is nailed into the inner walls of two sides of the hole opening, and finally the inverted cone-shaped drilling hole is formed, so that the auxiliary drill bit is firmly nailed on the rock wall, a supporting point is provided for the drill rod to prevent the drill rod from shaking, the main drill bit deviates the direction, and further the drilling hole collapses, and meanwhile, the phenomenon that the drilling hole is not straight due to shaking is avoided.
Drawings
FIG. 1 is a schematic structural view of a long-distance horizontal collapse-preventing drilling device used in a soft coal seam under a coal mine;
FIG. 2 is a schematic structural view of a left support frame of a long-distance horizontal anti-collapse drilling device used in a soft coal seam under a coal mine;
FIG. 3 is a schematic structural view of an auxiliary drill bit of a long-distance horizontal collapse-preventing drilling device used in a soft coal seam under a coal mine;
FIG. 4 is a schematic structural view of a long-distance horizontal collapse-preventing drilling equipment rod feeding device used in a soft coal seam under a coal mine;
in the figure: 1. a main equipment frame; 2. a left support frame; 3. a right support frame; 4. a liquid containing barrel; 5. a rod feeding device; 6. a boom arm; 7. a drilling machine; 8. driving the hydraulic cylinder; 9. a motor is sleeved; 10. a drill stem; 11. a main drill bit; 12. a grommet assembly; 13. a liquid pipe is communicated; 31. a fixed block; 32. an adjusting plate; 33. a first hydraulic cylinder; 34. a second hydraulic cylinder; 35. a slider; 36. a linear bearing; 37. an auxiliary drill bit; 38. a drive motor; 371. a drill rod; 372. a stone breaking knife; 373. a dust-proof shell; 374. a main gear; 375. a pinion gear; 376. a screw; 377. a hydraulic lever; 378. a return spring; 51. a rod-feeding base; 52. a rotating frame; 53. a drive rod; 54. a hydraulic cylinder is opened and closed; 55. a gripper jaw.
Detailed Description
Referring to fig. 1 to 4, the invention provides a long-distance horizontal anti-collapse drilling device for a soft coal seam under a coal mine, which comprises:
the left and right sides of the equipment main frame 1 are respectively and rotatably assembled with a left support frame 2 and a right support frame 3;
the liquid containing barrel 4 is fixedly arranged at the upper end of the left support frame 2;
the upper surface of the equipment main frame 1 is fixedly provided with a rod feeding device 5 and a boom arm 6, and the inner side of the equipment main frame is rotatably provided with a drilling machine 7;
the two groups of driving hydraulic cylinders 8 are symmetrically arranged by taking the drilling machine 7 as a center and are placed in the equipment main frame 1, a sleeve motor 9 is fixedly assembled at the piston end of each driving hydraulic cylinder, a liquid through pipe 13 is arranged in each sleeve motor 9, and the other end of each liquid through pipe 13 is placed in the liquid containing barrel 4;
a plurality of groups of mutually connected drill rods 10 are coaxially fixed at the right end of the drilling machine 7, and a main drill bit 11 is coaxially fixed at the tail end of each group of drill rods 10;
as a preferred embodiment, when the equipment works, a drill rod 10 is placed between the sleeve motor 9 and the drilling machine 7, the liquid through pipe 13 is communicated with the drill rod 10 and is connected with the drill rod 10 on the right side through the drilling machine 7, the sleeve motor 9 continuously wants to approach the drilling machine 7 during working, the main drill bit 11 continuously goes deep in the non-rotating process, the liquid containing barrel 4 contains drilling liquid, and when the equipment drills, the drilling liquid finally flows into a drill hole from the liquid containing barrel 4 through the liquid through pipe 13 and the drill rod 10 and carries waste residues to be discharged out of the drill hole.
Further, the right support frame 3 includes:
the fixed block 31 is fixedly assembled at the center of the right plane of the equipment main frame 1, the lower end of the fixed block is rotatably assembled with the adjusting plate 32, the upper end of the fixed block 31 is fixedly assembled with the linear bearing 36, and the inner side of the linear bearing 36 is coaxially assembled with the drill rod 10 in a sliding manner;
one end of the hydraulic cylinder 33 is rotatably assembled on the upper end plane of the adjusting plate 32, and the other end of the hydraulic cylinder is rotatably assembled at the lower end of the fixing block 31;
in a preferred embodiment, when the first hydraulic cylinder 33 is in a fully extended state, the adjusting plate 32 is in a horizontal state, and the lower surface of the adjusting plate 32 is overlapped with the lower surface of the left support frame 2, so that the drill rod is kept horizontal while the stability of the device is ensured.
Furthermore, two ends of the fixed block 31 are rotatably assembled with second hydraulic cylinders 34, the other ends of the two sets of second hydraulic cylinders 34 are fixedly assembled with sliding blocks 35, linear bearings 36 are embedded in the inner sides of the sliding blocks 35, and the drill rods 10 are coaxially assembled in a sliding manner;
in a preferred embodiment, the sliding block 35 can slide on the drill rod 10 according to actual conditions by adjusting the extension length of the second hydraulic cylinder 34.
Further, a driving motor 38 is fixedly assembled on the left side of each of two ends of the sliding block 35, and an auxiliary drill 37 is coaxially fixed on an output shaft of the driving motor 38;
as a preferred embodiment, as the drilling depth of the drill rod 10 increases, the main drill bit 11 deviates from the horizontal direction, even swings, so that the main drill bit 11 is pushed down to not only make the hole wall not straight, but also break the hole wall to cause the drill hole to collapse, when the drill hole is drilled to a certain depth, the hydraulic cylinder II 34 is extended to move the sliding block 35 in the drilling direction, and simultaneously the two sets of driving motors 38 are started to drive the auxiliary drill bit 37 to nail into the rock wall, so that a supporting point is provided for the drill rod 10 to prevent the drill rod from shaking, the main drill bit 11 deviates from the direction, and the drill hole collapses.
Further, the auxiliary drill 37 includes:
the drill rod 371 is coaxially fixed on the output shaft of the driving motor 38, three track grooves pointing to the center are formed in the right end plane of the drill rod 371, a stone breaking cutter 372 is slidably assembled on the track grooves, and a dustproof shell 373 is fixedly assembled in the center of the right end plane of the drill rod 371;
the dustproof shell 373 is in a cubic shape, and a main gear 374 and three sets of pinions 375 are placed in the dustproof shell 373;
as a preferred embodiment, the dust-proof housing 373 can isolate the waste slag generated by drilling, so as to prevent the waste slag from falling between the gears, interfering with the engagement of the gears, and even causing damage.
Further, the main gear 374 is rotatably mounted on the right end plane of the drill rod 371, three sets of the pinions 375 are rotatably mounted on the inner walls of the three sides of the dust-proof housing 373, and the main gear 374 and the three sets of the pinions 375 are in a meshed state.
Further, a screw 376 is assembled on the main gear 374 in a threaded manner, a hydraulic rod 377 is coaxially fixed to the other end of the screw 376, screw 376 are coaxially fixed to the three sets of pinion gears 375, and the screw 376 is in threaded fit with the corresponding stone breaking cutter 372;
in a preferred embodiment, the dust-proof housing 373 is provided with dust-proof bearings at the joints of the screw rods 376, so as to prevent waste slag from damaging the bearings while ensuring rotation thereof, and in an initial state, the hydraulic rod 377 is in a fully retracted state, when the pilot bit 37 performs drilling work, after the rock breaking cutter 372 completely enters the rock wall, the hydraulic rod 377 is driven to extend, after the hydraulic rod 377 pushes against the rock wall on the front side thereof, the hydraulic rod 377 is pushed backward along with the continued extension thereof, so that the screw rod 376 coaxial therewith moves relatively to the rear side, and the main gear 374 in threaded engagement with the screw rod 376 rotates, and the three sets of pinion gears 375 engaged therewith rotate synchronously and drive the screw rod 376 coaxially fixed therewith to rotate, so that the rock breaking cutter 372 in threaded engagement with the screw rod 376 moves in a direction away from the center until the slide block 35 approaches the plane on the back taper wall, and finally a drill hole in a shape is formed, so that the pilot bit 37 is firmly nailed to the rock wall, thereby providing a support point for 10 to prevent the drill rod from shaking and causing deviation of the main drill hole 11 and causing rock collapse.
Further, a return spring 378 is coaxially installed between the main gear 374 and the hydraulic rod 377;
in a preferred embodiment, after the drilling operation is completed, the hydraulic rod 377 is driven to contract, and under the action of the return spring 378, the screw 376 engaged with the hydraulic rod 377 gradually returns to the initial position, and simultaneously the main gear 374 is driven to rotate, and the rock breaking blade 372 is moved towards the center side under the action of the pinion 375 and the screw 376 until the components return to the initial position, and the auxiliary drill 37 is withdrawn from the rock wall, thereby completing the drilling fixing operation.
Further, the rod continuing device 5 comprises:
a continuous rod base 51 fixedly arranged at the upper end of the equipment main frame 1, wherein the left side of the continuous rod base is rotatably provided with a rotating frame 52, the upper end plane of the continuous rod base 51 is rotatably provided with a driving rod 53, and the other end of the driving rod 53 is rotatably arranged on the lower surface of the rotating frame 52;
two sides of the upper end of the rotating frame 52 are respectively provided with two groups of clamping claws 55 in a rotating and rotating mode in a mirror image mode, and the lower ends of the two groups of clamping claws 55 on each side are fixedly provided with opening and closing hydraulic cylinders 54;
in a preferred embodiment, the opening and closing hydraulic cylinder 54 and the driving rod 53 are in a contracted state in an initial state, the clamping jaws 55 are opened at the moment, the rotating frame 52 is in a right horizontal state, when the equipment needs to continue drilling, a standby drill rod is hung onto the clamping jaws 55 by the boom arm 6 and is placed in the centers of the two groups of clamping jaws 55, the opening and closing hydraulic cylinder 54 is driven to extend, the clamping jaws 55 clamp the standby drill rod, then the driving rod 53 is driven to extend, the rotating frame 52 rotates until the driving rod 53 extends to a limit state, the rotating frame 52 rotates 180 degrees, at the moment, the standby drill rod and the original drill rod are in a coaxial state, the drill rod 10 is connected through the sleeve motor 9, and the drilling operation is continued.
Further, the end of the drill rod 10 is coaxially and fixedly provided with a hole protecting assembly 12, and a plurality of groups of elastic hole protecting pads are fixedly arranged on the hole protecting assembly according to the rotating direction, and the elastic hole protecting pads can treat the hole wall after the main drill bit 11 drills the hole, so that the drilling fluid can act on the hole wall to the maximum extent, the toughness of the hole wall is improved, and the collapse is prevented.
When in specific implementation, the method comprises the following steps: selecting a proper drilling place placing device, enabling the left support frame 2 and the right support frame 3 to be firmly nailed on an action surface, installing a drill rod 10 and a main drill bit 11 on a drilling machine 6, selecting a proper feeding speed to start drilling, taking waste residues generated in the drilling process out of the drill hole by drilling fluid, processing the drill hole by a hole protection component 12 after drilling, enabling the drilling fluid to act with the hole wall to the maximum extent, improving the toughness of the hole wall, extending a hydraulic cylinder II 34 after the drill hole is drilled to a certain depth, enabling a sliding block 35 to move in the drilling direction, simultaneously starting two groups of driving motors 38 to drive an auxiliary drill bit 37 to be nailed into the rock wall, and finally forming a reverse taper-shaped drill hole, thereby providing a supporting point for the drill rod 10, preventing the drill rod from shaking, enabling the main drill bit 11 to deviate from the direction, further enabling the drill hole to collapse, when the device needs to carry out rod continuation, lifting a sleeving motor 9, lifting a standby drill rod 6 to hoist the standby drill rod to a rod continuation device 5, placing the standby drill rod to be sleeved on the position coaxial with an original drill rod through a rod continuation device, driving motor 9 to continuously push the drill rod, and continuously finish drilling.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. The utility model provides a be arranged in colliery soft coal seam long distance level in pit and prevent drilling equipment that collapses which characterized in that: the method comprises the following steps:
the left side and the right side of the equipment main frame (1) are respectively and rotatably assembled with a left support frame (2) and a right support frame (3);
the liquid containing barrel (4) is fixedly arranged at the upper end of the left support frame (2);
the upper surface of the equipment main frame (1) is fixedly provided with a rod connecting device (5) and a boom arm (6), and the inner side of the equipment main frame is rotatably provided with a drilling machine (7);
the two groups of driving hydraulic cylinders (8) are symmetrically arranged by taking the drilling machine (7) as a center and are placed in the main equipment frame (1), a sleeve motor (9) is fixedly assembled at the piston end of each driving hydraulic cylinder, a liquid through pipe (13) is arranged in each sleeve motor (9), and the other end of each liquid through pipe (13) is placed in the liquid containing barrel (4);
a plurality of groups of mutually connected drill rods (10) are coaxially fixed at the right end of the drilling machine (7), and a main drill bit (11) is coaxially fixed at the tail ends of the groups of drill rods (10).
2. The long-distance horizontal collapse-preventing drilling equipment for the soft coal seam in the underground coal mine according to claim 1, which is characterized in that: the right support frame (3) comprises:
the fixing block (31) is fixedly assembled at the center of the right plane of the equipment main frame (1), the lower end of the fixing block is rotatably assembled with an adjusting plate (32), the upper end of the fixing block (31) is fixedly assembled with a linear bearing (36), and the inner side of the linear bearing (36) is coaxially assembled with a drill rod (10) in a sliding manner;
and one end of the hydraulic cylinder (33) is rotatably assembled on the upper end plane of the adjusting plate (32), and the other end of the hydraulic cylinder is rotatably assembled at the lower end of the fixing block (31).
3. The long-distance horizontal collapse-preventing drilling equipment for the soft coal seam in the underground coal mine according to claim 2, wherein the equipment comprises: and two ends of the fixed block (31) are respectively and rotatably assembled with a second hydraulic cylinder (34), the other ends of the second hydraulic cylinders (34) are fixedly assembled with sliding blocks (35), the inner sides of the sliding blocks (35) are embedded with linear bearings (36), and the inner parts of the linear bearings are coaxially and slidably assembled with drill rods (10).
4. The long-distance horizontal collapse prevention drilling equipment for the soft coal seam in the coal mine well according to claim 3, is characterized in that: and the left sides of the two ends of the sliding block (35) are fixedly provided with driving motors (38), and the output shafts of the driving motors (38) are coaxially fixed with auxiliary drill bits (37).
5. The long-distance horizontal collapse prevention drilling equipment for the soft coal seam in the coal mine well according to claim 4 is characterized in that: the auxiliary drill (37) comprises:
the drill rod (371) is coaxially fixed on an output shaft of the driving motor (38), three track grooves pointing to the center are formed in the right end plane of the drill rod, a stone breaking cutter (372) is assembled on the track grooves in a sliding mode, and a dustproof shell (373) is fixedly assembled in the center of the right end plane of the drill rod (371);
the dustproof shell (373) is in a cubic shape, and a main gear (374) and three sets of pinions (375) are placed in the dustproof shell.
6. The long-distance horizontal collapse prevention drilling equipment for the soft coal seam in the coal mine well according to claim 5 is characterized in that: the main gear (374) is rotatably assembled on the right end plane of the drill rod (371), the three sets of the pinion gears (375) are respectively rotatably assembled on the inner walls of the three sides of the dustproof shell (373), and the main gear (374) and the three sets of the pinion gears (375) are in a meshed state.
7. The long-distance horizontal collapse prevention drilling equipment for the soft coal seam in the coal mine well according to claim 6, is characterized in that: the main gear (374) is provided with a screw rod (376) in a threaded manner, the other end of the screw rod (376) is coaxially fixed with a hydraulic rod (377), the three sets of the pinion gears (375) are coaxially fixed with the screw rod (376), and the screw rod (376) is in threaded fit with the corresponding stone breaking knife (372).
8. The long-distance horizontal collapse prevention drilling equipment for the soft coal seam in the coal mine well according to claim 7 is characterized in that: a return spring (378) is coaxially arranged between the main gear (374) and the hydraulic rod (377).
9. The long-distance horizontal collapse-preventing drilling equipment for the soft coal seam in the underground coal mine according to claim 1, which is characterized in that: the rod feeding device (5) comprises:
the continuous rod base (51) is fixedly placed at the upper end of the equipment main frame (1), the left side of the continuous rod base is rotatably provided with a rotating frame (52), the upper end plane of the continuous rod base (51) is rotatably provided with a driving rod (53), and the other end of the driving rod (53) is rotatably arranged on the lower surface of the rotating frame (52);
two sides of the upper end of the rotating frame (52) are respectively provided with two groups of clamping claws (55) in a rotating mode in a mirror image mode, and the lower ends of the two groups of clamping claws (55) on each side are fixedly provided with opening and closing hydraulic cylinders (54).
10. The long-distance horizontal collapse-preventing drilling equipment for the soft coal seam in the underground coal mine according to claim 1, which is characterized in that: the tail end of the drill rod (10) is coaxially and fixedly provided with a hole protection assembly (12), and a plurality of groups of elastic hole protection pads are fixedly arranged on the hole protection assembly according to the rotating direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129479.XA CN115538937A (en) | 2022-09-16 | 2022-09-16 | Long-distance horizontal collapse-preventing drilling equipment for soft coal seam in underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129479.XA CN115538937A (en) | 2022-09-16 | 2022-09-16 | Long-distance horizontal collapse-preventing drilling equipment for soft coal seam in underground coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115538937A true CN115538937A (en) | 2022-12-30 |
Family
ID=84726807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211129479.XA Pending CN115538937A (en) | 2022-09-16 | 2022-09-16 | Long-distance horizontal collapse-preventing drilling equipment for soft coal seam in underground coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115538937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309463A (en) * | 2023-09-27 | 2023-12-29 | 河南省地质局地质灾害防治中心 | Geological deep sample sampling device |
-
2022
- 2022-09-16 CN CN202211129479.XA patent/CN115538937A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309463A (en) * | 2023-09-27 | 2023-12-29 | 河南省地质局地质灾害防治中心 | Geological deep sample sampling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111042792B (en) | Deep drilling longitudinal joint cutting device and method | |
| CN202417352U (en) | Automatic drill rod changing device of rock drilling rig | |
| CN207104319U (en) | A kind of automatic drill reaming all-in-one of hinge body hinge | |
| CN111577142A (en) | Hydraulic hole expanding drilling tool for permeability increase of mechanical cave coal seam and hole expanding method thereof | |
| CN209780901U (en) | Hard rock tunneling robot | |
| CN201763241U (en) | Bushing & drilling-in dual purpose drilling machine | |
| CN203248060U (en) | Hydraulic drilling rig for drilling in coal mine | |
| CN101358522B (en) | Implementation of jog-opening, adaptive ability and automatic anti-blocking and rotating function of drill | |
| CN205370442U (en) | Drill jumbo | |
| CN108894792B (en) | Roller bit type push bench | |
| CN104818990A (en) | Cave mining device of finishing-use granite | |
| CN212803049U (en) | Demolish blasting big gun hole drilling equipment | |
| CN102747977A (en) | Internal cutting device of hydraulic sleeve | |
| CN203188899U (en) | Full sleeve special-type drilling machine | |
| CN115538937A (en) | Long-distance horizontal collapse-preventing drilling equipment for soft coal seam in underground coal mine | |
| CN202745782U (en) | Internal cutting device of hydraulic sleeve | |
| CN209040760U (en) | A kind of digging drills steel sharpener | |
| CN102251744B (en) | Annular patio drilling machine | |
| CN111764918B (en) | Drilling splitting all-in-one machine | |
| CN206111178U (en) | Equipment is reprinted in pit in colliery with fluting function | |
| CN112627837B (en) | Hydraulic milling, drilling and crushing method for rock | |
| CN210564358U (en) | Raise boring machine for reaming gold mine | |
| CN210509027U (en) | Hydraulic-pneumatic linkage rock drill | |
| CN206053949U (en) | The fluting machinery arm assembly of underground mine use fluting equipment | |
| CN204571995U (en) | Equipment is adopted in a kind of facing granite hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |