CN117248832A - Soil layer exploration drilling device with overload protection - Google Patents
Soil layer exploration drilling device with overload protection Download PDFInfo
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- CN117248832A CN117248832A CN202311540118.9A CN202311540118A CN117248832A CN 117248832 A CN117248832 A CN 117248832A CN 202311540118 A CN202311540118 A CN 202311540118A CN 117248832 A CN117248832 A CN 117248832A
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- connecting piece
- overload protection
- elastic
- drill bit
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 75
- 239000002689 soil Substances 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000009471 action Effects 0.000 claims abstract description 15
- 210000001503 joint Anatomy 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 17
- 208000010392 Bone Fractures Diseases 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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- 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 soil layer exploration drilling device with overload protection, and relates to the field of geological exploration equipment. According to the invention, when the drill bit is blocked in the soil layer and does not rotate any more, the elastic connecting piece is abutted and retracted into the lower connecting piece under the action of the rotation torque of the upper connecting piece, so that the upper connecting piece and the lower connecting piece are not locked and fixed any more, at the moment, when the upper connecting piece rotates under the driving of the drilling driving assembly, the lower connecting piece and the drill bit are not driven to synchronously rotate, so that the lower connecting piece and the drill bit are not subjected to torsion force any more, the drilling driving assembly is not subjected to torsion resistance any more, the drill bit torsion fracture and the overload damage of the drilling driving assembly can be prevented, the overload protection mechanism is connected and disconnected through the expansion and contraction of the elastic connecting piece, the damage of parts in the overload protection mechanism can not be caused in the overload protection process, the cost required by overload protection is reduced, the overhaul time of the drilling device after the overload protection is shortened, and the exploration drilling efficiency is improved.
Description
Technical Field
The invention belongs to the field of geological exploration equipment, and particularly relates to a soil layer exploration drilling device with overload protection.
Background
In the processes of petroleum and natural gas drilling, geological exploration and mine drilling, due to the heterogeneity of stratum rock, when a difficult stratum is drilled, a drill bit often cannot obtain enough torque to break the stratum, so that the drill bit stops rotating in a short time, and meanwhile, a rotating shaft still continues rotating under the driving of drilling driving equipment, so that the drill bit is easily twisted and broken, the driving equipment is overloaded and damaged, and the normal operation of exploration drilling work is influenced.
Chinese patent CN201246124Y discloses a drilling tool with cooling lubrication and overload protection structure, which comprises a taper shank torque shaft and a connecting sleeve, wherein the taper shank torque shaft is connected with a hollow trepanning drill bit through the connecting sleeve, a cooling lubrication liquid leakage-proof sleeve is arranged at the rear part of the taper shank torque shaft, a cooling lubrication liquid hose connector is arranged on the cooling lubrication liquid leakage-proof sleeve, and the connecting sleeve is connected with the hollow trepanning drill bit through a torque transmission flat key. The internal circulation cooling lubrication of the cutting area of the drill bit is synchronously implemented while the core is drilled, the purposes of stable rotary drilling and rapid flushing and discharging of fine rock fragments are maintained, and when unexpected drill clamping occurs during the core drilling process, the torque transmission flat key and the screw are immediately sheared, and only the torque shaft of the taper shank idles independently.
When the drill bit is clamped, the torque transmission flat key and the screw are sheared through torsional force to achieve the purpose of overload protection of the drill bit, but when overload protection is carried out, the torque transmission flat key and the screw are damaged, the overload protection structure and the drill bit are required to be disassembled, and then the drill bit is reinstalled through the new torque transmission flat key and the screw, so that the cost required by overload protection is increased, the drill bit is required to be disassembled and assembled again, the time is long, and the progress of exploration drilling work is easy to influence.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a soil layer exploration drilling device with overload protection, which aims to overcome the technical problems in the prior related art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a soil layer exploration drilling device with overload protection, which comprises a drilling mechanism, an overload protection mechanism and a locking mechanism, wherein the drilling mechanism comprises a drilling driving assembly and a drill bit, and the drilling driving assembly is fixedly connected with the drill bit through the overload protection mechanism;
the overload protection mechanism comprises an upper connecting piece, a lower connecting piece and an elastic connecting piece, wherein the upper connecting piece is fixedly arranged at the lower end of the drilling driving assembly, the lower connecting piece is fixedly arranged at the top end of a drill bit, the upper connecting piece and the lower connecting piece are rotationally connected, one end of the elastic connecting piece is clamped in the lower connecting piece, and the other end of the elastic connecting piece is elastically abutted in the upper connecting piece;
when the drilling driving assembly drives the upper connecting piece to rotate, the upper connecting piece drives the lower connecting piece to synchronously rotate through the elastic connecting piece, so that the lower connecting piece drives the drill bit to rotationally drill into the soil layer; when the drill bit is blocked in the soil layer and does not rotate any more, the elastic connecting piece is abutted and retracted into the lower connecting piece under the action of the rotating torque of the upper connecting piece, so that the upper connecting piece and the lower connecting piece are not locked and fixed any more, and at the moment, the upper connecting piece is driven by the drilling driving assembly to rotate, and the lower connecting piece and the drill bit are not driven to rotate synchronously;
the locking mechanism comprises an elastic pin and a positioning hole, the elastic pin is installed in the elastic connecting piece in a butt mode, the positioning hole is formed in the outer wall of the lower connecting piece, when the elastic connecting piece is retracted into the lower connecting piece in a butt mode, the elastic pin is driven to synchronously descend, and when the elastic pin descends into the positioning hole, one end of the elastic pin is ejected and inserted into the positioning hole to lock the elastic connecting piece in the lower connecting piece in a pin mode.
Further, the drilling mechanism comprises a machine base, an engine and an oil tank communicated with the engine are fixedly arranged on the top surface of the machine base, handles are fixedly arranged on two sides of the top surface of the machine base, a rotating shaft connected with the engine in a transmission mode is rotatably arranged at the bottom end of the machine base, and the rotating shaft is fixedly connected with a drill bit through an overload protection mechanism.
Further, the upper connecting piece comprises an upper shaft sleeve, a butt joint groove is formed in the bottom end of the upper shaft sleeve, the lower connecting piece comprises a lower shaft sleeve, and a boss which is rotationally connected with the butt joint groove is fixedly arranged at the top end of the lower shaft sleeve.
Further, the elastic connecting piece comprises a plurality of taper holes and a plurality of lifting slide holes, the taper holes are circumferentially distributed and arranged on the outer ring at the bottom end of the upper shaft sleeve, and the lifting slide holes are circumferentially distributed and arranged on the outer ring at the top end of the lower shaft sleeve;
the lifting column is slidably installed in the lifting sliding hole, a supporting spring is installed at the bottom end of the lifting column in a butt joint mode, and a ball head clamped in the taper hole is fixedly installed at the top end of the lifting column.
Further, the lower extreme slidable mounting of lift slide hole have the butt in the lift slider of supporting spring bottom, the bottom fixed mounting of lift slider has the adjusting column, the bottom of adjusting column extends to the lower axle sleeve outside, and the surface mounting of lower axle sleeve have with adjusting column fixed connection's lift adjustment unit.
Further, the lifting adjusting unit comprises a thread sleeve and an external thread cylinder, the external thread cylinder is fixedly arranged at the bottom end of the lower shaft sleeve, the thread sleeve is arranged on the outer ring of the external thread cylinder in a threaded manner, and the bottom ends of the adjusting columns are in sliding butt joint with the top surface of the thread sleeve.
Further, the elastic pin comprises a positioning seat fixedly installed at the lower end of the lifting column and slidably clamped in the lifting sliding hole, a pin hole corresponding to the positioning hole is formed in the outer side of the positioning seat, a pin shaft is slidably clamped in the positioning hole, and the inner side end of the pin shaft is abutted to a pressure spring.
Further, the outer surface of the lower shaft sleeve is rotatably provided with a swivel positioned at the outer ring of the positioning hole, the inner ring of the swivel is fixedly provided with a plurality of abutting blocks corresponding to the positioning holes one by one, and the corresponding positioning holes and the abutting blocks are staggered.
Further, a fixed ring positioned below the swivel is fixedly arranged on the outer surface of the lower shaft sleeve, a torsion spring is arranged between the swivel and the fixed ring through a spring groove, one end of the torsion spring is fixedly connected with the swivel, and the other end of the torsion spring is fixedly connected with the fixed ring.
The invention has the following beneficial effects:
1. the upper connecting piece and the lower connecting piece in the overload protection mechanism are clamped and fixed through the elastic connecting piece, so that the drilling driving assembly and the drill bit are fixedly connected through the overload protection mechanism in a locking way, and the drilling driving assembly can drive the drill bit to drill in a rotating way in a soil layer; when the drill bit is blocked in the soil layer and does not rotate any more, the elastic connecting piece is abutted and retracted into the lower connecting piece under the action of the rotating torque of the upper connecting piece, so that the upper connecting piece and the lower connecting piece are not locked and fixed any more, at the moment, the upper connecting piece is not driven to synchronously rotate with the drill bit when the drill bit is driven to rotate by the drilling driving assembly, so that the lower connecting piece and the drill bit are not subjected to torsional force any more, the drilling driving assembly is not subjected to torsional resistance any more, the drill bit is prevented from being distorted and broken and the drilling driving assembly is prevented from being overloaded and damaged, the overload protection mechanism is connected and disconnected through the expansion and contraction of the elastic connecting piece, the damage of parts in the overload protection mechanism is not caused in the overload protection process, the cost required by overload protection is reduced, and the overload protection mechanism can be reclosed only by resetting and clamping the elastic connecting piece between the upper connecting piece and the lower connecting piece, and the drill bit and the overload protection mechanism are not required to be disassembled again, so that the time of a drilling device after overload protection is shortened, and the exploration efficiency is improved.
2. According to the invention, when the elastic connecting piece is abutted and retracted into the lower connecting piece to disconnect the upper connecting piece and the lower connecting piece, the elastic connecting piece drives the elastic pin to synchronously descend, when the elastic pin descends into the positioning hole, one end of the elastic pin is ejected and inserted into the positioning hole to lock the elastic connecting piece in the lower connecting piece, so that the elastic connecting piece is prevented from resetting and upwards reinserting in the upper connecting piece under the elastic action of the elastic connecting piece, the upper connecting piece and the lower connecting piece are always in a disconnection state in the overload protection process, the overload protection effect is improved, the elastic connecting piece can be prevented from repeating the abutting and retraction and the resetting and splicing process due to the relative rotation of the upper connecting piece and the lower connecting piece, the collision damage of the elastic connecting piece due to the reciprocating motion is further prevented, the service life of the elastic connecting piece is prolonged, and when the drilling driving component stops driving the upper connecting piece to rotate, the elastic pin is abutted and retracted again to unlock the elastic connecting piece, and the elastic connecting piece can reset and upwards reinsert in the upper connecting piece under the elastic action of the elastic connecting piece, so that the upper connecting piece and the lower connecting piece can be quickly restored to a locking state, and the drilling device can quickly restore the working state, and the drilling device can be quickly restored to the working state.
3. According to the invention, the elastic adjusting component is arranged at the bottom end of the elastic connecting piece, so that the supporting elasticity of the elastic supporting piece can be adjusted according to the material hardness of the drill bit and the power of the drilling driving component, and further the torsion required by the elastic connecting piece when being abutted and retracted can be adjusted, and the overload protection mechanism is prevented from being frequently disconnected in the soil layer drilling process due to the fact that the supporting elasticity of the elastic connecting piece is too small, or the supporting elasticity of the elastic supporting piece is too large, so that the overload protection mechanism cannot be disconnected to carry out overload protection when the drill bit and the overload protection mechanism bear too large torsion, and the drill bit and the drilling machine driving component are prevented from being damaged due to overload.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that it is also possible for a person skilled in the art to obtain the drawings from these drawings without inventive effort.
FIG. 1 is a schematic perspective view of an exploration drilling apparatus of the present invention;
FIG. 2 is a schematic view of the structure of the present invention shown in FIG. 1 at a partially enlarged scale;
FIG. 3 is a schematic view of the overload protection mechanism of the present invention in perspective cut-away;
FIG. 4 is a schematic view of the structure of the present invention shown in FIG. 3 at B in a partially enlarged manner;
FIG. 5 is a schematic view of the structure of the present invention shown in FIG. 3 at C in a partially enlarged manner;
FIG. 6 is a schematic cross-sectional view of the drill drive assembly of the present invention coupled to a drill bit via an overload protection mechanism;
FIG. 7 is a schematic view of a partially enlarged structure of the invention at D of FIG. 6;
FIG. 8 is a schematic cross-sectional view of the overload protection mechanism of the present invention shown disconnected;
fig. 9 is a schematic view of a partial enlarged structure at E of fig. 8 according to the present invention.
In the figure: 1. a drilling mechanism; 11. a base; 12. an engine; 13. an oil tank; 14. a handle; 15. a rotating shaft; 16. a drill bit; 2. overload protection mechanism; 21. an upper shaft sleeve; 22. a lower shaft sleeve; 23. a thread sleeve; 24. an external thread cylinder; 25. a butt joint groove; 26. a boss; 27. taper holes; 28. ball head; 29. lifting columns; 210. lifting slide holes; 211. a support spring; 212. a lifting slide block; 213. an adjusting column; 3. a locking mechanism; 31. a swivel; 32. a fixing ring; 33. a positioning seat; 34. a pressure spring; 35. a pin hole; 36. a pin shaft; 37. positioning holes; 38. abutting blocks; 39. and (3) a torsion spring.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, based on the embodiments in the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "top," "middle," "inner," and the like indicate an orientation or positional relationship, merely for convenience of description and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Referring to fig. 1 and 3, the invention discloses a soil layer exploration drilling device with overload protection, which comprises a drilling mechanism 1, an overload protection mechanism 2 and a locking mechanism 3, wherein the drilling mechanism 1 comprises a drilling driving assembly and a drill bit 16, and the drilling driving assembly is fixedly connected with the drill bit 16 through the overload protection mechanism 2;
the overload protection mechanism 2 comprises an upper connecting piece, a lower connecting piece and an elastic connecting piece, wherein the upper connecting piece is fixedly arranged at the lower end of the drilling driving assembly, the lower connecting piece is fixedly arranged at the top end of the drill bit 16, the upper connecting piece and the lower connecting piece are rotationally connected, one end of the elastic connecting piece is clamped in the lower connecting piece, and the other end of the elastic connecting piece is elastically abutted in the upper connecting piece;
when the drilling driving assembly drives the upper connecting piece to rotate, the upper connecting piece drives the lower connecting piece to synchronously rotate through the elastic connecting piece, so that the lower connecting piece drives the drill bit 16 to rotationally drill into the soil layer; when the drill bit 16 is blocked in the soil layer and does not rotate any more, the elastic connecting piece is abutted and retracted into the lower connecting piece under the action of the rotating torque of the upper connecting piece, so that the upper connecting piece and the lower connecting piece are not locked and fixed any more, and at the moment, the upper connecting piece is driven by the drilling driving assembly to rotate, and the lower connecting piece and the drill bit 16 are not driven to rotate synchronously;
the locking mechanism 3 comprises an elastic pin and a positioning hole 37, the elastic pin is installed in the elastic connecting piece in an abutting mode, the positioning hole 37 is formed in the outer wall of the lower connecting piece, when the elastic connecting piece is retracted into the lower connecting piece in an abutting mode, the elastic pin is driven to synchronously move downwards, and when the elastic pin moves downwards into the positioning hole 37, one end of the elastic pin is ejected and inserted into the positioning hole 37, so that the elastic connecting piece is locked in the lower connecting piece in a pin mode;
according to the invention, when the drill bit 16 drills into a difficult stratum, if the torque of the drill bit 16 cannot crush the stratum, and when the drill bit 16 stops rotating, the elastic connecting piece is retracted into the lower connecting piece under the torsion butt of the upper connecting piece, so that the upper connecting piece and the lower connecting piece are disconnected, at the moment, the lower connecting piece and the drill bit 16 are not subjected to torsion force any more, meanwhile, the drilling driving assembly is not subjected to torsion resistance any more, the drill bit 16 can be prevented from being continuously subjected to torsion force to deform and fracture when the drill bit 16 stops rotating, and is prevented from being subjected to excessive torsion resistance to overload damage, the overload protection mechanism is connected and disconnected through the expansion and contraction of the elastic connecting piece, the damage of parts in the overload protection mechanism 2 is not caused in the overload protection process, the cost required by overload protection is reduced, and the overload protection mechanism 2 can be closed again only by resetting and clamping the elastic connecting piece between the upper connecting piece and the lower connecting piece, and the overload protection mechanism 2 are not required to be disassembled again, so that the time of the drilling device after overload protection is shortened, and the exploration efficiency is improved;
when the elastic connecting piece is retracted downwards into the lower connecting piece, the elastic connecting piece is locked in the lower connecting piece through the matching of the elastic pin and the positioning hole 37, so that the elastic connecting piece is prevented from being reset and upwards reinserted in the upper connecting piece under the elastic action of the elastic connecting piece, the upper connecting piece and the lower connecting piece are always in a disconnection state in the overload protection process, the overload protection effect is improved, the elastic connecting piece can be prevented from being repeatedly retracted in a butt joint mode and the reset splicing process due to the relative rotation of the upper connecting piece and the lower connecting piece, the elastic connecting piece is prevented from being damaged due to the collision of the reciprocating motion, the service life of the elastic connecting piece is prolonged, the elastic pin is retracted in a butt joint mode when the drilling driving assembly stops driving the upper connecting piece to rotate, the elastic connecting piece can be reset and upwards reinserted in the upper connecting piece under the elastic action of the elastic connecting piece, the upper connecting piece and the lower connecting piece can be quickly restored to a locking state, and the drilling device can be quickly restored to a working state, and the drilling efficiency is favorable for improving the exploration drilling efficiency.
Referring to fig. 1 and 2, in one embodiment, a drilling mechanism 1 includes a stand 11, an engine 12 and an oil tank 13 communicated with the engine 12 are fixedly installed on the top surface of the stand 11, handles 14 are fixedly installed on two sides of the top surface of the stand 11, a rotating shaft 15 in transmission connection with the engine 12 is rotatably installed at the bottom end of the stand 11, and the rotating shaft 15 is fixedly connected with a drill bit 16 through an overload protection mechanism 2;
when the soil layer exploration drills, a worker holds the handle 14 by hand, vertically erects the drill bit 16 on the ground, then the motor 12 drives the rotary shaft 15 to rotate, the rotary shaft 15 drives the drill bit 16 to synchronously rotate through the load protection mechanism 2, and when the drill bit 16 drills into a difficult stratum to stop rotating, the overload protection mechanism 2 is disconnected, so that the rotary shaft 15 and the drill bit 16 are disconnected, and further torsion fracture of the drill bit 16 and overload damage of the motor 12 due to overlarge torsion resistance are prevented.
Referring to fig. 3, 4 and 6-9, in one embodiment, the upper connecting piece includes an upper shaft sleeve 21, a docking slot 25 is formed at the bottom end of the upper shaft sleeve 21, the lower connecting piece includes a lower shaft sleeve 22, and a boss 26 rotatably connected with the docking slot 25 is fixedly mounted at the top end of the lower shaft sleeve 22; the elastic connecting piece comprises a plurality of taper holes 27 and a plurality of lifting slide holes 210, the taper holes 27 are circumferentially distributed on the outer ring at the bottom end of the upper shaft sleeve 21, and the lifting slide holes 210 are circumferentially distributed on the outer ring at the top end of the lower shaft sleeve 22; a lifting column 29 is slidably installed in the lifting sliding hole 210, a supporting spring 211 is arranged at the bottom end of the lifting column 29 in a propping way, and a ball head 28 clamped in the taper hole 27 is fixedly arranged at the top end of the lifting column 29;
the upper shaft sleeve 21 is fixedly installed at the bottom end of the rotating shaft 15, the lower shaft sleeve 22 is fixedly installed at the top end of the drill bit 16, the supporting spring 211 elastically supports the lifting column 29 and the ball head 28, the ball head 28 is clamped in the taper hole 27, so that the upper shaft sleeve 21 and the lower shaft sleeve 22 are locked and fixed under the clamping limit of a plurality of groups of taper holes 27 and the ball head 28, when the rotating shaft 15 drives the upper shaft sleeve 21 to rotate, the upper shaft sleeve 21 drives the lower shaft sleeve 22 and the drill bit 16 to synchronously rotate, when the drill bit 16 is clamped by a soil layer and does not rotate any more, the lower shaft sleeve 22 stops rotating along with the drill bit 16, the upper shaft sleeve 21 has a torsion acting force under the driving of the rotating shaft 15, and the torsion acting force between the upper shaft sleeve 21 and the lower shaft sleeve 22 is continuously increased, at the moment, the upper shaft sleeve 21 slides down the ball head 28 into the lifting slide hole 210 through the taper hole 27 under the torsion acting force, the taper hole 27 is not clamped and locked, the upper shaft sleeve 21 and the lower shaft sleeve 22 are unlocked, and then the rotating the drill bit 16 is not driven to rotate under the driving of the rotating shaft 15, and the drill bit 16 is prevented from being damaged due to the torsion and the overload resistance of the drill bit 16 is prevented from being broken.
Referring to fig. 3, 4 and 6-9, in one embodiment, the elastic pin includes a positioning seat 33, the positioning seat 33 is fixedly installed at the lower end of the lifting column 29 and is slidably clamped in the lifting sliding hole 210, a pin hole 35 corresponding to the positioning hole 37 is formed on the outer side of the positioning seat 33, a pin shaft 36 is slidably clamped in the positioning hole 37, and a pressure spring 34 is installed at the inner side end of the pin shaft 36 in an abutting manner;
when the ball head 28 is clamped in the taper hole 27, one end of the pin shaft 36 is abutted against the inner wall of the lifting slide hole 210 under the action of the elastic force of the pressure spring 34, when the ball head 28 is abutted downward to move, the lifting column 29 and the positioning seat 33 are driven to synchronously move downward in the lifting slide hole 210, so that the pin shaft 36 is driven to move downward in the lifting slide hole 210 until the ball head 28 is abutted against and retracted into the lifting slide hole 210, the pin shaft 36 moves to the positioning hole 37 under the action of the elastic force of the pressure spring 34, at the moment, the pin shaft 36 moves towards the positioning hole 37, so that one end of the pin shaft 36 is inserted into the positioning hole 37, and then the positioning seat 33, the lifting column 29 and the ball head 28 are locked in the lifting slide hole 210 in a pin manner through the cooperation of the pin shaft 36 and the positioning hole 37, and the ball head 28 are prevented from being clamped in the taper hole 27 again in the lifting slide hole 27 under the action of the reset elastic force of the supporting spring 211, so that the upper shaft sleeve 21 and the lower shaft sleeve 22 are always in a disconnected state in the overload protection process, and the ball head 28 is prevented from being damaged in the process of moving upward and the taper hole 27 in the fast collision process of the ball head 27.
Referring to fig. 1-4, 8 and 9, in one embodiment, a swivel 31 located at an outer ring of a positioning hole 37 is rotatably installed on an outer surface of a lower shaft sleeve 22, a plurality of supporting blocks 38 corresponding to the positioning holes 37 one by one are fixedly installed at an inner ring of the swivel 31, and the corresponding positioning holes 37 and the supporting blocks 38 are staggered;
wherein, the end parts of the supporting block 38 and the pin shaft 36 are respectively provided with an arc-shaped end, when the pin shaft 36 is inserted into the positioning hole 37, the arc-shaped end of the end part of the pin shaft 36 extends to the inner ring of the swivel 31; when the ball head 28 is required to be reset and clamped into the taper hole 27 to lock and connect the upper shaft sleeve 21 and the lower shaft sleeve 22 again, the upper shaft sleeve 21 and the lower shaft sleeve 22 are relatively rotated, the taper holes 27 in the upper shaft sleeve 21 and the lower shaft sleeve 22 are aligned with the lifting slide holes 210 one by one, the rotating ring 31 is rotated, the plurality of abutting blocks 38 of the inner ring of the rotating ring 31 are driven to synchronously rotate, the corresponding plurality of pin shafts 36 are abutted and retracted into the positioning holes 37 at the same time, the pin shafts 36 are abutted and retracted into the lifting slide holes 210 under the guiding action of arc-shaped ends of the pin shafts, so that the pin shafts 33 are locked, at the moment, the positioning seats 33, the lifting columns 29 and the ball heads 28 slide upwards in the lifting slide holes 210 under the action of the reset elastic force of the supporting springs 211, the ball heads 28 are clamped into the taper hole 27 again, and the ball heads 28 in the lower shaft sleeve 22 can be synchronously unlocked through the cooperation of the rotating ring 31 and the abutting blocks 38, the corresponding ball heads 28 are simultaneously reset and clamped into the corresponding taper holes 27, and the quick reset and clamped between the upper shaft sleeve 28 and the lower shaft sleeve 22 can be more conveniently locked by the guide effect of the pin shafts, and the quick reset device can be more convenient to restore to the working condition after the device is stopped, and the device is in a quick-stop state.
Referring to fig. 1-4, in one embodiment, a fixed ring 32 located below a swivel 31 is fixedly installed on an outer surface of a lower shaft sleeve 22, a torsion spring 39 is installed between the swivel 31 and the fixed ring 32 through a spring slot, one end of the torsion spring 39 is fixedly connected with the swivel 31, and the other end is fixedly connected with the fixed ring 32;
the fixed ring 32 and the torsion spring 39 cooperate with the swivel 31 to limit, so that the swivel 31 is prevented from rotating and moving on the surface of the lower shaft sleeve 22 due to rotation inertia when the lower shaft sleeve 22 rotates and works, the abutting block 38 of the inner ring of the swivel 31 is further limited, the abutting block 38 is prevented from moving to the position of the positioning hole 37, the positioning hole 37 is blocked, when the swivel 31 rotates to drive the abutting block 38 to move to retract the pin shaft 36 in an abutting mode, the swivel 31 drives the torsion spring 39 to twist and deform to generate torsion spring force, after the abutting and resetting process of the pin shaft 36 is completed, the swivel 31 is loosened, at the moment, the swivel 31 rotates and resets under the action of the torsion spring force of the torsion spring 39, and then the abutting block 38 is driven to move and reset, so that the abutting block 38 is always positioned on one side of the corresponding positioning hole 37, and the pin shaft 36 extending out of the positioning hole 37 is enabled to retract in an abutting mode through the abutting block 38.
Referring to fig. 1-5, in one embodiment, a lifting slider 212 abutting against the bottom end of a supporting spring 211 is slidably mounted at the lower end of a lifting sliding hole 210, an adjusting column 213 is fixedly mounted at the bottom end of the lifting slider 212, the bottom end of the adjusting column 213 extends to the outside of a lower shaft sleeve 22, and a lifting adjusting unit fixedly connected with the adjusting column 213 is mounted on the surface of the lower shaft sleeve 22;
the lifting adjusting unit can drive the adjusting column 213 to move up and down, so as to drive the lifting slide block 212 to move up and down in the lifting slide hole 210, when the lifting slide block 212 is upwards, the supporting spring 211 can be abutted and contracted, so that the supporting spring force of the supporting spring 211 on the lifting column 29 and the ball head 28 is improved, the torsion required by the ball head 28 when being abutted and downwards moved is further improved, and when the lifting slide block 212 is downwards moved, the supporting spring 211 is reset and stretched to reduce the supporting spring force on the lifting column 29 and the ball head 28, and the torsion required by the ball head 28 when being abutted and downwards moved is further reduced; therefore, the supporting spring 211 can adjust the supporting elastic force of the ball head 28 according to the material hardness of the drill bit 16 and the power of the drilling driving assembly, and further the torsion required by the ball head 28 when the ball head 28 is abutted and retracted can be adjusted, the ball head 28 is prevented from being abutted and retracted due to the fact that the supporting elastic force of the supporting spring 211 is too small, and then the overload protection mechanism 2 is disconnected in the soil layer drilling process, or the supporting elastic force of the supporting spring 211 to the ball head 28 is too large, so that the overload protection mechanism 2 cannot be disconnected in time for overload protection when the drill bit 16 bears the too large torsion, and the drill bit 16 and the drilling driving assembly are damaged in overload.
Referring to fig. 1-5, in one embodiment, the lifting adjusting unit includes a threaded sleeve 23 and an external threaded cylinder 24, the external threaded cylinder 24 is fixedly installed at the bottom end of the lower shaft sleeve 22, the threaded sleeve 23 is screwed on the outer ring of the external threaded cylinder 24, and the bottom ends of the plurality of adjusting posts 213 are all slidably abutted to the top surface of the threaded sleeve 23;
when the supporting elastic force of the supporting spring 211 needs to be adjusted, the threaded sleeve 23 is rotated, the threaded sleeve 23 is driven to move up and down on the surface of the external threaded cylinder 24 through threads, when the threaded sleeve 23 is upward, the adjusting column 213 and the lifting slide block 212 are pushed to move up, so that the supporting spring 211 is propped against the supporting elastic force to be increased, when the threaded sleeve 23 is downward, the supporting spring 211 drives the lifting slide block 212 and the adjusting column 213 to synchronously move down through the reset elastic force, the adjusting column 213 is always propped against the top surface of the threaded sleeve 23, and at the moment, the length of the supporting spring 211 is prolonged, and the supporting elastic force is reduced; through the cooperation of thread bush 23 and external screw thread section of thick bamboo 24, can adjust the supporting elasticity of a plurality of supporting springs 211 simultaneously for the elasticity adjustment process of supporting spring 211 is more convenient, can guarantee simultaneously that the supporting elasticity of every supporting spring 211 in the adjustment process is the same, thereby the atress is more even when making upper shaft sleeve 21 and lower shaft sleeve 22 locking.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above disclosed preferred embodiments of the invention are merely intended to help illustrate the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.
Claims (9)
1. Soil layer exploration drilling device with overload protection, including boring mechanism (1), overload protection mechanism (2) and locking mechanical system (3), its characterized in that: the drilling mechanism (1) comprises a drilling driving assembly and a drill bit (16), and the drilling driving assembly is fixedly connected with the drill bit (16) through an overload protection mechanism (2);
the overload protection mechanism (2) comprises an upper connecting piece, a lower connecting piece and an elastic connecting piece, wherein the upper connecting piece is fixedly arranged at the lower end of the drilling driving assembly, the lower connecting piece is fixedly arranged at the top end of a drill bit (16), the upper connecting piece and the lower connecting piece are rotationally connected, one end of the elastic connecting piece is clamped in the lower connecting piece, and the other end of the elastic connecting piece is elastically abutted in the upper connecting piece;
when the drilling driving assembly drives the upper connecting piece to rotate, the upper connecting piece drives the lower connecting piece to synchronously rotate through the elastic connecting piece, so that the lower connecting piece drives the drill bit (16) to rotationally drill into the soil layer; when the drill bit (16) is blocked in the soil layer and does not rotate any more, the elastic connecting piece is abutted and retracted into the lower connecting piece under the action of the rotating torque of the upper connecting piece, so that the upper connecting piece and the lower connecting piece are not locked and fixed any more, and at the moment, the upper connecting piece is driven by the drilling driving assembly to rotate, and the lower connecting piece and the drill bit (16) are not driven to synchronously rotate any more;
the locking mechanism (3) comprises an elastic pin and a positioning hole (37), the elastic pin is installed in the elastic connecting piece in a butt mode, the positioning hole (37) is formed in the outer wall of the lower connecting piece, when the elastic connecting piece is retracted into the lower connecting piece in a butt mode, the elastic pin is driven to synchronously move downwards, and when the elastic pin moves downwards into the positioning hole (37), one end of the elastic pin is ejected and inserted into the positioning hole (37) to lock the elastic connecting piece in the lower connecting piece in a butt mode.
2. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 1 wherein: the drilling mechanism (1) comprises a base (11), an engine (12) and an oil tank (13) communicated with the engine (12) are fixedly arranged on the top surface of the base (11), handles (14) are fixedly arranged on two sides of the top surface of the base (11), a rotating shaft (15) in transmission connection with the engine (12) is rotatably arranged at the bottom end of the base (11), and the rotating shaft (15) is fixedly connected with a drill bit (16) through an overload protection mechanism (2).
3. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 1 wherein: the upper connecting piece comprises an upper shaft sleeve (21), a butt joint groove (25) is formed in the bottom end of the upper shaft sleeve (21), the lower connecting piece comprises a lower shaft sleeve (22), and a boss (26) rotationally connected with the butt joint groove (25) is fixedly arranged at the top end of the lower shaft sleeve (22).
4. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 3 wherein: the elastic connecting piece comprises a plurality of taper holes (27) and a plurality of lifting slide holes (210), wherein the taper holes (27) are circumferentially distributed on the outer ring at the bottom end of the upper shaft sleeve (21), and the lifting slide holes (210) are circumferentially distributed on the outer ring at the top end of the lower shaft sleeve (22);
lifting column (29) is installed in the lifting sliding hole (210), supporting springs (211) are installed at the bottom ends of the lifting column (29) in a butt joint mode, and ball heads (28) are fixedly installed at the top ends of the lifting column (29) and clamped in the taper holes (27).
5. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 4 wherein: the lower extreme slidable mounting of lift slide hole (210) have butt in lift slider (212) of supporting spring (211) bottom, the bottom fixed mounting of lift slider (212) has adjusting column (213), the bottom of adjusting column (213) extends to lower axle sleeve (22) outside, and the surface mounting of lower axle sleeve (22) have with adjusting column (213) fixed connection's lift adjustment unit.
6. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 5 wherein: the lifting adjusting unit comprises a threaded sleeve (23) and an external threaded cylinder (24), wherein the external threaded cylinder (24) is fixedly arranged at the bottom end of the lower shaft sleeve (22), the threaded sleeve (23) is arranged on the outer ring of the external threaded cylinder (24) in a threaded manner, and the bottom ends of a plurality of adjusting columns (213) are in sliding butt joint with the top surface of the threaded sleeve (23).
7. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 5 wherein: the elastic pin comprises a positioning seat (33), the positioning seat (33) is fixedly arranged at the lower end of the lifting column (29) and is slidably clamped in the lifting sliding hole (210), a pin hole (35) corresponding to the positioning hole (37) is formed in the outer side of the positioning seat (33), a pin shaft (36) is slidably clamped in the positioning hole (37), and a pressure spring (34) is arranged at the inner side end of the pin shaft (36) in a butt joint mode.
8. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 7 wherein: the outer surface of the lower shaft sleeve (22) is rotatably provided with a swivel (31) positioned at the outer ring of the positioning hole (37), the inner ring of the swivel (31) is fixedly provided with a plurality of abutting blocks (38) corresponding to the positioning holes (37) one by one, and the corresponding positioning holes (37) and the abutting blocks (38) are staggered.
9. A soil horizon exploration drilling apparatus with overload protection as claimed in claim 8 wherein: the outer surface fixed mounting of lower axle sleeve (22) has fixed ring (32) that are located swivel (31) below, install torsional spring (39) through the spring groove between swivel (31) and the fixed ring (32), one end of torsional spring (39) with swivel (31) fixed connection, the other end with fixed ring (32) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311540118.9A CN117248832A (en) | 2023-11-20 | 2023-11-20 | Soil layer exploration drilling device with overload protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311540118.9A CN117248832A (en) | 2023-11-20 | 2023-11-20 | Soil layer exploration drilling device with overload protection |
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| CN117248832A true CN117248832A (en) | 2023-12-19 |
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| CN202311540118.9A Pending CN117248832A (en) | 2023-11-20 | 2023-11-20 | Soil layer exploration drilling device with overload protection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010080A (en) * | 2024-04-10 | 2024-05-10 | 青岛理工大学 | All-terrain mobile comprehensive index measurement recording device |
| CN118090308A (en) * | 2024-04-23 | 2024-05-28 | 中国地质调查局烟台海岸带地质调查中心 | Overload-proof soil sampler for geological exploration |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588916A (en) * | 1994-02-17 | 1996-12-31 | Duramax, Inc. | Torque control device for rotary mine drilling machine |
| CN201246124Y (en) * | 2008-09-10 | 2009-05-27 | 徐州压力机械有限公司 | Boring tool with cooling lubrication and overload protection structure |
| CN104632934A (en) * | 2014-12-10 | 2015-05-20 | 东南大学 | Servo turret head overload protection device |
| CN106984995A (en) * | 2017-05-24 | 2017-07-28 | 东南大学 | Numerically-controlled slide machining overload protection device |
| CN107139015A (en) * | 2017-06-02 | 2017-09-08 | 东南大学 | Circumferential transmission adjustable threshold overload protection arrangement |
| KR20180020388A (en) * | 2016-08-18 | 2018-02-28 | 미르텍 주식회사 | Drill processing apparatus using torque control |
| CN108868655A (en) * | 2018-07-02 | 2018-11-23 | 西南石油大学 | A kind of oil/gas well drill string torque protective device |
| CN111005676A (en) * | 2020-01-03 | 2020-04-14 | 广州利何机械科技有限公司 | Soil exploration drilling device with drill bit overload protection function |
| CN212803986U (en) * | 2020-05-29 | 2021-03-26 | 上海航空电器有限公司 | Overload protection device capable of adjusting limit transmission torque |
| CN113202410A (en) * | 2021-05-11 | 2021-08-03 | 王利波 | Geological exploration device for oil exploitation and application method thereof |
| CN214092797U (en) * | 2020-12-16 | 2021-08-31 | 北京巴什卡科技有限公司 | Overload protection structure |
| CN115405236A (en) * | 2022-10-17 | 2022-11-29 | 中煤科工集团重庆研究院有限公司 | A safe drilling equipment for gas pressure test in coal seam |
-
2023
- 2023-11-20 CN CN202311540118.9A patent/CN117248832A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588916A (en) * | 1994-02-17 | 1996-12-31 | Duramax, Inc. | Torque control device for rotary mine drilling machine |
| CN201246124Y (en) * | 2008-09-10 | 2009-05-27 | 徐州压力机械有限公司 | Boring tool with cooling lubrication and overload protection structure |
| CN104632934A (en) * | 2014-12-10 | 2015-05-20 | 东南大学 | Servo turret head overload protection device |
| KR20180020388A (en) * | 2016-08-18 | 2018-02-28 | 미르텍 주식회사 | Drill processing apparatus using torque control |
| CN106984995A (en) * | 2017-05-24 | 2017-07-28 | 东南大学 | Numerically-controlled slide machining overload protection device |
| CN107139015A (en) * | 2017-06-02 | 2017-09-08 | 东南大学 | Circumferential transmission adjustable threshold overload protection arrangement |
| CN108868655A (en) * | 2018-07-02 | 2018-11-23 | 西南石油大学 | A kind of oil/gas well drill string torque protective device |
| CN111005676A (en) * | 2020-01-03 | 2020-04-14 | 广州利何机械科技有限公司 | Soil exploration drilling device with drill bit overload protection function |
| CN212803986U (en) * | 2020-05-29 | 2021-03-26 | 上海航空电器有限公司 | Overload protection device capable of adjusting limit transmission torque |
| CN214092797U (en) * | 2020-12-16 | 2021-08-31 | 北京巴什卡科技有限公司 | Overload protection structure |
| CN113202410A (en) * | 2021-05-11 | 2021-08-03 | 王利波 | Geological exploration device for oil exploitation and application method thereof |
| CN115405236A (en) * | 2022-10-17 | 2022-11-29 | 中煤科工集团重庆研究院有限公司 | A safe drilling equipment for gas pressure test in coal seam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118010080A (en) * | 2024-04-10 | 2024-05-10 | 青岛理工大学 | All-terrain mobile comprehensive index measurement recording device |
| CN118090308A (en) * | 2024-04-23 | 2024-05-28 | 中国地质调查局烟台海岸带地质调查中心 | Overload-proof soil sampler for geological exploration |
| CN118090308B (en) * | 2024-04-23 | 2024-07-23 | 中国地质调查局烟台海岸带地质调查中心 | Overload-proof soil sampler for geological exploration |
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Application publication date: 20231219 |