CN111206925A - Directional drilling system and directional drilling method - Google Patents
Directional drilling system and directional drilling method Download PDFInfo
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- CN111206925A CN111206925A CN202010063030.2A CN202010063030A CN111206925A CN 111206925 A CN111206925 A CN 111206925A CN 202010063030 A CN202010063030 A CN 202010063030A CN 111206925 A CN111206925 A CN 111206925A
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 70
- 239000002689 soil Substances 0.000 claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims description 39
- 230000008859 change Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000005527 soil sampling Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 2
- 230000002337 anti-port Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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Classifications
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
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- 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
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- 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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/027—Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Soil Sciences (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Earth Drilling (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to a directional drilling system and a directional drilling method, which comprise a rack, a sampling assembly and a plurality of rollers, wherein the sampling assembly comprises an installation frame, a lifting part, a servo motor and a sampling rod; the machine frame is provided with a linkage assembly, a plurality of separating pieces, a plurality of limiting pieces and a plurality of driving pieces. In the sample process, it is rotatory to drive the thief rod through servo motor earlier, and rethread lift piece drives the mounting bracket decline, then the joint subassembly is contradicted the motion in the break away from piece, and the drill bit will be fixed at the bottom of the ground, and the thief rod will rotate to go deep into and carry out the soil property sample in the bottom of the ground. After the sample is accomplished, drive the thief rod antiport through servo motor earlier, rethread lift piece drives the mounting bracket and rises, and the thief rod will be followed the ground end and rolled out to the sample of soil property has been accomplished. The invention improves the sampling efficiency.
Description
Technical Field
The invention relates to the technical field of geological survey, in particular to a directional drilling system and a directional drilling method.
Background
In the geological exploration process, the soil needs to be sampled and analyzed, and the existing sampling device is rigid in structure and single in function, so that the geological exploration is inconvenient to use.
Through retrieval, Chinese patent publication No. CN109060416A discloses a drilling sampling device for geological exploration, which comprises a lifting mechanism and a fixing mechanism, wherein the lifting mechanism is arranged above the fixing mechanism, and the fixing mechanism comprises a first supporting bottom plate, a universal wheel, a second supporting bottom plate, a sampling hole, a limiting slide bar, a buffer spring, a limiting bolt, a first fixing plate, a second fixing plate, a fixing top plate, counterweight iron, a fixing chute, a first electric telescopic rod, a fixing slide block, a lifting slide block and the like. Realize automatic sampling, reduced workman's intensity of labour, greatly increased the work efficiency of soil sample.
The above prior art solutions have the following drawbacks: in the sampling process, a fixed drill bit is driven to drill into the ground through a first electric telescopic rod and a fixed motor, so that the device is fixed; then the second electric telescopic rod and the servo motor drive the sampling rod to go deep into the ground to sample. Therefore, sampling of soil quality requires a worker to sequentially operate four groups of fixed motors, four groups of first electric telescopic rods, four servo motors and second electric telescopic rods, and the operation is troublesome, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a directional drilling system, which improves the sampling efficiency.
The above object of the present invention is achieved by the following technical solutions: the directional drilling system comprises a rack, a sampling assembly and a plurality of idler wheels arranged at the bottom of the rack, wherein the sampling assembly comprises a mounting rack, a lifting piece arranged on the rack and used for driving the mounting rack to lift, a servo motor fixed at the bottom of the mounting rack and a sampling rod connected to an output shaft of the servo motor; the rack is provided with a linkage assembly for driving all the rotating rods and the sampling rod to synchronously rotate, and a plurality of clamping assemblies for movement conflict so as to enable the clamping assemblies to cancel the separating piece from the rotating rod clamping state, and a plurality of driving pieces for preventing the rotating rods from separating from the limiting piece for accommodating the cavity and the clamping assemblies for driving the separating pieces to separate from the separating pieces and clamp the rotating rods fixedly.
By adopting the technical scheme, in the sampling process, the servo motor drives the sampling rod to rotate, and the rotating rod and the drill bit synchronously rotate under the action of the linkage assembly; the mounting frame is driven to descend by the lifting piece, so that the drill bit can drill into the ground, and the stability of the rack and the sampling rod is ensured; then the clamping component pushes the movement against the disengaging piece, the disengaging piece enables the clamping piece to cancel clamping and fixing of the rotating rod, and the drill bit is fixed at the bottom of the ground without going deep downwards; the rotating rod rotates and descends in the accommodating cavity, and the friction force between the side wall of the rotating rod and the wall of the accommodating cavity can continuously ensure the stability of the rack and the sampling rod; then the sampling rod rotates to go deep into the ground bottom for soil sampling.
After sampling is finished, the servo motor drives the sampling rod to rotate reversely, the lifting piece drives the mounting frame to ascend, and the sampling rod rotates out of the ground, so that soil sampling is finished; subsequently, the dwang will continue to rise holding the intracavity, and under the effect of locating part, the dwang will drive the drill bit and rise and make the joint subassembly break away from in breaking away from the piece, and the driving part will drive the joint subassembly at this moment and fix the dwang joint, then the drill bit will be driven by the dwang and rotate and from the ground end and roll out. Therefore, only the servo motor and the lifting piece are controlled to complete the sampling of the soil, and therefore the sampling efficiency is improved.
The present invention in a preferred example may be further configured to: the joint subassembly includes that a plurality of circumferences are seted up and are passed through the groove on the drill bit lateral wall, a plurality of slip inlays the joint spare of establishing corresponding passing through the inslot, a plurality of circumferences are seted up the joint groove on the dwang lateral wall and are promoted the equal joint of all joint spares and in the impeller that corresponds the joint inslot, all pass through the groove and all communicate in holding the chamber.
Through adopting above-mentioned technical scheme, the impeller will promote all the equal joint of joint spare in the joint inslot that corresponds to fix the dwang joint on the drill bit, guaranteed the synchronous rotation of drill bit and dwang.
The present invention in a preferred example may be further configured to: the pushing piece is a pushing ring which is sleeved outside the drill bit in a sliding mode, one end, facing the clamping piece, of the pushing ring is provided with a pushing face inclined towards the axis of the drill bit, and all the clamping pieces penetrate out of the clamping grooves and abut against the pushing face.
Through adopting above-mentioned technical scheme, the slip promotes the ring and makes the push face compress tightly in all joint spare, can make all joint spare equal joint in the joint inslot that corresponds to the convenience is fixed the dwang joint on the drill bit.
The present invention in a preferred example may be further configured to: the separating piece is arranged below the pushing ring, and the pushing surface is inclined downwards.
Through adopting above-mentioned technical scheme, at the decline in-process of mounting bracket, the lower extreme of push ring will support tightly in breaking away from the piece for the push ring can't descend in step with the drill bit, so the push face will break away from in joint spare, makes joint spare break away from in the joint groove, thereby has cancelled the joint subassembly and has fixed the joint of dwang.
The present invention in a preferred example may be further configured to: the driving piece is a spring, and two ends of the spring are respectively and fixedly connected to the pushing ring and the drill bit.
By adopting the technical scheme, after the lower end of the pushing ring is abutted against the disengaging piece, the spring is compressed and urges the pushing surface to disengage from the clamping piece, so that the clamping and fixing of the clamping assembly to the rotating rod are cancelled; after the dwang drove the drill bit and rises, the spring will reply to natural state and impel the pushing face all to push into corresponding joint inslot with all joint spare to fix the dwang joint on the drill bit once more, so that the drill bit rotated out from the ground bottom.
The present invention in a preferred example may be further configured to: the accommodating cavity comprises a first round cavity communicated with the through groove and a second round cavity communicated with the first round cavity and positioned below the first round cavity, the area of a cavity opening of the first round cavity is smaller than that of a cavity opening of the second round cavity, and the limiting part is a limiting disc fixed on the rotating rod and rotatably embedded in the second round cavity; when the limiting disc is abutted against the top cavity wall of the second round cavity, the clamping groove corresponds to the through groove.
Through adopting above-mentioned technical scheme, when the mounting bracket rises to make spacing dish conflict in the top chamber wall of second round cavity, the joint groove will be corresponding to and run through the groove, spacing dish will drive the drill bit afterwards and rise and make the spring reply to natural state, and the spring will drive the promotion ring gliding and make joint spare card go into the joint inslot, and the drill bit will be driven by the dwang at this moment and rotate and from the end of the ground roll-out.
The present invention in a preferred example may be further configured to: the dwang is equipped with four groups altogether, and the linkage subassembly is established the driven pulley outside corresponding the dwang including fixed cover drive pulley and four fixed covers of establishing outside the servo motor output shaft, and the cover is equipped with synchronous belt on drive pulley and wherein two sets of driven pulley, also overlaps on drive pulley and the other two sets of driven pulley to be equipped with synchronous belt.
Through adopting above-mentioned technical scheme, under synchronous belt's effect, all dwang and drill bit all will rotate with the synchronous syntropy of sampling rod for four groups of drill bits can bore into the ground bottom in step, thereby have improved sample efficiency.
The present invention in a preferred example may be further configured to: two groups of vertical rods for sleeving corresponding synchronous belts are fixed on the rack, each vertical rod comprises a large-diameter part, a gradual change part and a small-diameter part which are sequentially arranged from top to bottom, the diameter of the large-diameter part is larger than that of the small-diameter part, and the gradual change part is arranged in an inverted frustum shape; when the clamping component is abutted against the separating piece, the synchronous belt is abutted against the gradual change part.
By adopting the technical scheme, after the clamping assembly is abutted against the release piece, the clamping assembly cancels clamping and fixing of the rotating rod, and the rotating rod rotates and descends in the accommodating cavity; then synchronous belt will pass through gradual change portion and move to minor diameter portion for synchronous belt is lax, and the dwang will stall, thereby has reduced the wearing and tearing of dwang to holding the chamber wall. After the sample was accomplished, the mounting bracket drove the thief rod and rises, and synchronous belt will move to major diameter portion through gradual change portion, and synchronous belt will be the tensioning this moment, and the dwang will be rotating holding the intracavity to can drive the drill bit and rotate out from the ground end.
It is another object of the present invention to provide a method of directional drilling that improves the efficiency of sampling.
The above object of the present invention is achieved by the following technical solutions: a method of directional drilling comprising the steps of:
s1, firstly, the rack is pushed to a designated position, then the servo motor drives the sampling rod to rotate, and the lifting piece drives the mounting rack, the sampling rod, the rotating rod and the drill bit to synchronously descend;
s2, the rotating rod and the drill bit are driven to rotate through the linkage of the synchronous belt, so that the drill bit can drill into the ground bottom in a rotating mode;
s3, when the pushing ring descends and abuts against the disengaging piece, the spring is compressed and drives the pushing surface to disengage from the clamping piece, and then the clamping piece disengages from the clamping groove, so that the rotating rod rotates and descends in the accommodating cavity;
s4, when the synchronous belt moves to the small diameter part through the gradual change part, the synchronous belt is loosened, so that the rotating rod stops rotating and continues to descend;
s5, rotating the sampling rod to penetrate into the ground bottom for soil sampling;
s6, driving the mounting rack to ascend through the lifting piece and driving the sampling rod to rotate reversely through the servo motor;
s7, the sampling rod with soil is rotated out of the ground, and then the synchronous belt moves to the large-diameter part through the gradual change part, so that the synchronous belt is tensioned and causes the rotating rod to rotate in the accommodating cavity;
s8, when the limiting disc rises to abut against the top cavity wall of the second round cavity, the clamping groove corresponds to the through groove, then the limiting disc drives the drill bit to rise and enables the spring to return to a natural state, and the spring drives the pushing ring to slide downwards so that the clamping piece is clamped into the clamping groove;
s9, the drill bit is driven by the rotating rod to rotate and rotate out of the ground, and the lifting piece drives the mounting frame to ascend and reset.
In summary, the invention has the following beneficial technical effects:
1. the arrangement of the rotating rod, the drill bit, the clamping component, the linkage component, the separating piece, the limiting piece and the driving piece only needs to control the servo motor and the lifting piece to finish the sampling of soil, so that the sampling efficiency is improved;
2. the synchronous belts are arranged, so that the four groups of drill bits can synchronously drill into the ground, and the sampling efficiency is improved;
3. due to the arrangement of the vertical rod, the abrasion of the rotating rod to the wall of the accommodating cavity is reduced, and the rotating rod is convenient to drive the drill bit to rotate out from the ground bottom.
Drawings
FIG. 1 is a schematic view of the overall structure in an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the construction of the linkage assembly and the vertical post in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a clamping assembly according to an embodiment of the present invention.
Reference numerals: 1. a frame; 11. a roller; 12. a counterweight iron; 13. drilling; 2. a sampling assembly; 21. a mounting frame; 22. an electric cylinder; 23. a servo motor; 24. a sampling rod; 25. a coupling; 3. a drill bit; 31. rotating the rod; 32. an accommodating chamber; 321. a first circular cavity; 322. a second circular cavity; 33. a limiting disc; 4. a linkage assembly; 41. a drive pulley; 42. a driven pulley; 43. a synchronous belt; 5. a clamping assembly; 51. a through groove; 52. a clamping piece; 53. a clamping groove; 54. a push ring; 541. pushing the surface; 55. a spring; 6. a disengaging member; 7. a vertical rod; 71. a large diameter part; 72. a gradual change portion; 73. a small diameter part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows: as shown in fig. 1, the directional drilling system comprises a frame 1, a sampling assembly 2 and a plurality of rollers 11 arranged at the bottom of the frame 1, wherein the sampling assembly 2 comprises a mounting frame 21, a lifting piece, a servo motor 23 and a sampling rod 24; the lifting piece is an electric cylinder 22 extending along the vertical direction and fixed on the rack 1, and a piston rod of the electric cylinder 22 is fixedly connected to the upper surface of the mounting rack 21; the servo motor 23 is fixed at the bottom of the mounting frame 21; the sampling rod 24 is connected to the output shaft of the servo motor 23 through a coupling 25; and the two sides of the frame 1 are both provided with counterweight irons 12.
As shown in fig. 1, the mounting frame 21 is rotatably connected with a plurality of rotating rods 31 circumferentially arranged around the sampling rod 24, in this embodiment, the number of the rotating rods 31 is four; the bottom of all dwang 31 all is equipped with drill bit 3, has seted up four groups on the frame 1 and has supplied drilling 13 to rotate the embedding drilling 13 and establish drilling 13.
As shown in fig. 1 and fig. 2, a linkage assembly 4 is disposed on the frame 1, the linkage assembly 4 includes a driving pulley 41 fixedly sleeved outside an output shaft of the servo motor 23 and four sets of driven pulleys 42 fixedly sleeved outside the corresponding rotating rod 31, the driving pulley 41 and two sets of the driven pulleys 42 are sleeved with a synchronous belt 43, and the driving pulley 41 and the other two sets of the driven pulleys 42 are also sleeved with the synchronous belt 43. Under the effect of synchronous belt 43, all dwang 31 and drill bit 3 will all rotate with the synchronous syntropy of sampling rod 24 for four groups of drill bits 3 can bore into the ground bottom in step, conveniently fix frame 1.
As shown in fig. 3, all the drills 3 are provided with an accommodating cavity 32 and a clamping assembly 5, and the rotating rod 31 is rotatably embedded in the accommodating cavity 32 and can slide up and down in the accommodating cavity 32; the clamping assembly 5 comprises a plurality of through grooves 51 circumferentially arranged on the side wall of the drill bit 3, the number of the through grooves 51 is four in the embodiment, and all the through grooves 51 are communicated with the accommodating cavity 32; all the through grooves 51 are embedded with clamping pieces 52 in a sliding manner, and all the clamping pieces 52 are arranged in a spherical manner; four sets of clamping grooves 53 are circumferentially formed in the side walls of all the rotating rods 31, and corresponding clamping pieces 52 are clamped into the grooves.
As shown in fig. 3, pushing members and driving members are arranged outside all the drill bits 3, the pushing members are pushing rings 54 which are slidably sleeved outside the drill bits 3, the pushing rings 54 are located above the clamping members 52, the lower ends of the pushing rings 54 are provided with pushing surfaces 541 which incline towards the axis of the drill bits 3, and all the clamping members 52 penetrate through the clamping grooves 53 and abut against the pushing surfaces 541; the driving part is a spring 55 and is provided with a plurality of groups on the drill bit 3, and two ends of the spring 55 are respectively and fixedly connected with the end part of the pushing ring 54 and the side wall of the drill bit 3. When the spring 55 is in a natural state, the pushing surface 541 will abut against all the clamping members 52 and make all the clamping members 52 clamped into the corresponding clamping grooves 53, so as to fix the rotating rod 31 on the drill bit 3 in a clamping manner, thereby ensuring the synchronous rotation of the rotating rod 31 and the drill bit 3.
As shown in fig. 1 and 3, the lower part of all the pushing rings 54 is provided with a disengaging part 6 fixed on the frame 1, and the disengaging part 6 is arranged in an L-shaped block shape. When the electric cylinder 22 drives the mounting frame 21 to descend, the lower end of the pushing ring 54 abuts against the disengaging member 6, the spring 55 is compressed and urges the pushing surface 541 to disengage from the engaging member 52, so that the engaging member 52 disengages from the engaging groove 53; the drill bit 3 will now be fixed to the ground without further penetration and the turning rod 31 will turn down in the accommodation chamber 32.
As shown in fig. 3, the accommodating chamber 32 includes a first circular chamber 321 communicated with the through slot 51 and a second circular chamber 322 communicated with the first circular chamber 321 and located below the first circular chamber 321, and the area of the opening of the first circular chamber 321 is smaller than that of the opening of the second circular chamber 322; a limiting member is rotatably embedded in the second circular cavity 322, and the limiting member is a limiting disc 33 fixed at the bottom of the rotating rod 31. When the rotating rod 31 rotates and descends in the accommodating cavity 32, the friction force between the side wall of the rotating rod 31 and the wall of the first round cavity 321 and the friction force between the side wall of the limiting disc 33 and the wall of the second accommodating cavity 32 can continuously ensure the stability of the rack 1 and the sampling rod 24.
As shown in fig. 1 and 3, when the electric cylinder 22 drives the mounting frame 21 to ascend, so that the limiting disc 33 abuts against the top cavity wall of the second circular cavity 322, the clamping groove 53 corresponds to the through groove 51; limiting disc 33 will drive drill bit 3 and rise afterwards and impel spring 55 to return to natural state, and spring 55 will drive push ring 54 gliding makes joint spare 52 block go into in the joint groove 53, and drill bit 3 will be driven by dwang 31 and rotate and from the ground bottom roll-out this moment to the continuation of being convenient for frame 1 removes.
As shown in fig. 1, 2 and 3, two sets of vertical rods 7 for sleeving the corresponding synchronous belts 43 are fixed on the frame 1, each vertical rod 7 includes a large diameter portion 71, a gradual change portion 72 and a small diameter portion 73, which are sequentially arranged from top to bottom, the diameter of the large diameter portion 71 is larger than that of the small diameter portion 73, and the gradual change portion 72 is arranged in an inverted circular truncated shape. When the pushing ring 54 abuts against the release member 6, the engaging member 52 is released from the engaging groove 53; the timing belt 43 will then move to the small diameter portion 73 through the gradually changing portion 72, so that the timing belt 43 is loosened and causes the rotating lever 31 to stop rotating, thereby reducing the abrasion of the rotating lever 31 and the limiting disk 33 to the wall of the accommodating chamber 32. When the sampling is completed, the mounting frame 21 drives the sampling rod 24 to ascend, the synchronous belt 43 will move to the large-diameter portion 71 through the gradually-changing portion 72, and at this time, the synchronous belt 43 will be tensioned and cause the rotating rod 31 to rotate in the accommodating cavity 32, so as to drive the drill bit 3 to rotate out of the ground.
The implementation principle of the embodiment is as follows: in the sampling process, the rack 1 is pushed to a designated position, the servo motor 23 drives the sampling rod 24 to rotate, and the electric cylinder 22 drives the mounting rack 21, the sampling rod 24, the rotating rod 31 and the drill bit 3 to synchronously descend; then the rotating rod 31 and the drill bit 3 are driven to rotate through the linkage of the synchronous belt 43, so that the drill bit 3 can rotatably drill into the ground bottom, and the stability of the rack 1 and the sampling rod 24 is ensured.
When the pushing ring 54 descends and abuts against the disengaging piece 6, the spring 55 will be compressed and urge the pushing surface 541 to disengage from the catching piece 52, and then the catching piece 52 will disengage from the catching groove 53, so that the drill bit 3 is fixed at the bottom of the ground without going deep downwards, and the rotating rod 31 will continue to rotate and descend in the accommodating cavity 32; after the synchronous belt 43 moves to the small diameter part 73 through the gradually changing part 72, the synchronous belt 43 will be loosened, so that the rotating rod 31 stops rotating and continues to descend, thereby reducing the abrasion of the rotating rod 31 and the limiting disc 33 on the cavity wall of the accommodating cavity 32; the sampling rod 24 is then rotated deep into the ground for soil sampling.
After sampling is finished, the electric cylinder 22 drives the mounting frame 21 to ascend, and the servo motor 23 drives the sampling rod 24 to reversely rotate; the sampling rod 24 with soil will rotate out of the ground, and then the timing belt 43 moves to the large diameter portion 71 through the gradually changing portion 72, at which time the timing belt 43 will be tensioned and cause the rotating rod 31 to rotate in the accommodating chamber 32.
After the limiting disc 33 rises to abut against the top cavity wall of the second circular cavity 322, the clamping groove 53 corresponds to the through groove 51, then the limiting disc 33 drives the drill bit 3 to rise and causes the spring 55 to return to a natural state, the spring 55 drives the pushing ring 54 to slide downwards so that the clamping piece 52 is clamped into the clamping groove 53, and the rotating rod 31 is clamped and fixed on the drill bit 3; after that, the drill bit 3 will be rotated by the rotating rod 31 and rotated out from the ground bottom, and the electric cylinder 22 will drive the mounting frame 21 to ascend and return, thereby completing the sampling of the soil texture.
Example two: the directional drilling method, as shown in fig. 1 to 3, comprises the steps of:
s1, firstly, the rack 1 is pushed to a designated position, then the servo motor 23 drives the sampling rod 24 to rotate, and the electric cylinder 22 drives the mounting rack 21, the sampling rod 24, the rotating rod 31 and the drill bit 3 to synchronously descend;
s2, the rotating rod 31 and the drill bit 3 are driven to rotate through the linkage of the synchronous belt 43, so that the drill bit 3 can rotatably drill into the ground;
s3, when the pushing ring 54 descends and abuts against the disengaging member 6, the spring 55 will be compressed and urge the pushing surface 541 to disengage from the engaging member 52, and then the engaging member 52 will disengage from the engaging groove 53, so that the rotating rod 31 rotates and descends in the accommodating cavity 32;
s4, when the timing belt 43 passes through the gradually changing portion 72 and moves to the small diameter portion 73, the timing belt 43 will be slackened, so that the rotating lever 31 stops rotating and continues to descend;
s5, rotating the sampling rod 24 to penetrate into the ground bottom for soil sampling;
s6, driving the mounting rack 21 to ascend through the electric cylinder 22 and driving the sampling rod 24 to rotate reversely through the servo motor 23;
s7, the sampling rod 24 with soil will rotate out from the ground, and then the timing belt 43 will move to the large diameter portion 71 through the gradually changing portion 72, at which time the timing belt 43 will be tensioned and the rotating rod 31 will be caused to rotate in the accommodating cavity 32;
s8, when the limiting disc 33 rises to abut against the top cavity wall of the second circular cavity 322, the clamping groove 53 corresponds to the through groove 51, then the limiting disc 33 drives the drill bit 3 to rise and causes the spring 55 to return to a natural state, and the spring 55 drives the push ring 54 to slide downwards so that the clamping piece 52 is clamped into the clamping groove 53;
s9, the drill bit 3 is rotated by the rotating rod 31 and rotated out of the ground, and the electric cylinder 22 drives the mounting frame 21 to ascend and return.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. Directional drilling system, including frame (1), sampling subassembly (2) and a plurality of gyro wheel (11) of locating frame (1) bottom, sampling subassembly (2) include mounting bracket (21), locate frame (1) on and be used for driving the lift piece that mounting bracket (21) go up and down, fix servo motor (23) in mounting bracket (21) bottom and connect in sample pole (24) of servo motor (23) output shaft, its characterized in that: a plurality of rotating rods (31) which are circumferentially arranged around the sampling rod (24) are rotatably connected to the mounting rack (21), drill bits (3) are arranged at the bottoms of all the rotating rods (31), and accommodating cavities (32) which are used for the rotating rods (31) to be rotatably embedded and for the rotating rods (31) to slide along the vertical direction and clamping components (5) which are used for clamping and fixing the rotating rods (31) are arranged on all the drill bits (3); the rack (1) is provided with a linkage assembly (4) which drives all the rotating rods (31) and the sampling rod (24) to synchronously rotate, and a plurality of clamping assemblies (5) are supplied to move and conflict so as to enable the clamping assemblies (5) to cancel the separation part (6) of the clamping state of the rotating rods (31), and a plurality of driving parts which avoid the rotating rods (31) to separate from the limiting part of the accommodating cavity (32) and the clamping assemblies (5) which drive the separation part (6) to fix the clamping of the rotating rods (31).
2. The directional drilling system of claim 1, wherein: the clamping assembly (5) comprises a plurality of through grooves (51) circumferentially formed in the side wall of the drill bit (3), a plurality of clamping pieces (52) which are slidably embedded in the corresponding through grooves (51), a plurality of clamping grooves (53) circumferentially formed in the side wall of the rotating rod (31), and pushing pieces for pushing all the clamping pieces (52) to be clamped in the corresponding clamping grooves (53), wherein all the through grooves (51) are communicated with the accommodating cavity (32).
3. The directional drilling system of claim 2, wherein: the pushing piece is a pushing ring (54) which is sleeved outside the drill bit (3) in a sliding mode, a pushing face (541) which inclines towards the axis of the drill bit (3) is arranged at one end, facing the clamping piece (52), of the pushing ring (54), and all the clamping pieces (52) penetrate out of the clamping groove (53) and abut against the pushing face (541).
4. The directional drilling system of claim 3, wherein: the disengaging piece (6) is arranged below the pushing ring (54), and the pushing surface (541) is inclined downwards.
5. The directional drilling system of claim 4, wherein: the driving piece is a spring (55), and two ends of the spring (55) are respectively and fixedly connected to the pushing ring (54) and the drill bit (3).
6. The directional drilling system of claim 5, wherein: the accommodating cavity (32) comprises a first round cavity (321) communicated with the through groove (51) and a second round cavity (322) communicated with the first round cavity (321) and positioned below the first round cavity (321), the area of a cavity opening of the first round cavity (321) is smaller than that of a cavity opening of the second round cavity (322), and the limiting part is a limiting disc (33) which is fixed on the rotating rod (31) and is embedded in the second round cavity (322) in a rotating mode; when the limiting disc (33) is abutted against the top cavity wall of the second round cavity (322), the clamping groove (53) corresponds to the through groove (51).
7. The directional drilling system of claim 1, wherein: dwang (31) are equipped with four groups altogether, and linkage subassembly (4) are established driving pulley (41) and four groups of fixed cover outside servo motor (23) output shaft and are established driven pulley (42) outside corresponding dwang (31) including fixed cover, and the cover is equipped with synchronous belt (43) on driving pulley (41) and wherein two sets of driven pulley (42), also overlaps on driving pulley (41) and other two sets of driven pulley (42) and is equipped with synchronous belt (43).
8. The directional drilling system of claim 7, wherein: two groups of vertical rods (7) for sleeving corresponding synchronous belts (43) are fixed on the rack (1), each vertical rod (7) comprises a large-diameter part (71), a gradual change part (72) and a small-diameter part (73) which are sequentially arranged from top to bottom, the diameter of the large-diameter part (71) is larger than that of the small-diameter part (73), and the gradual change part (72) is arranged in an inverted circular truncated cone shape; when the clamping component (5) is abutted against the separating piece (6), the synchronous belt (43) is abutted against the gradual change part (72).
9. A method of directional drilling according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1, firstly, the rack (1) is pushed to a designated position, then the servo motor (23) drives the sampling rod (24) to rotate, and the lifting piece drives the mounting rack (21), the sampling rod (24), the rotating rod (31) and the drill bit (3) to synchronously descend;
s2, the rotating rod (31) and the drill bit (3) are driven to rotate through the linkage of the synchronous belt (43), so that the drill bit (3) can drill into the ground bottom in a rotating mode;
s3, when the pushing ring (54) descends and abuts against the disengaging piece (6), the spring (55) is compressed and pushes the pushing surface (541) to disengage from the clamping piece (52), and then the clamping piece (52) disengages from the clamping groove (53), so that the rotating rod (31) rotates and descends in the accommodating cavity (32);
s4, when the synchronous belt (43) moves to the small-diameter part (73) through the gradual change part (72), the synchronous belt (43) is loosened, so that the rotating rod (31) stops rotating and continues to descend;
s5, rotating the sampling rod (24) to penetrate into the ground bottom for soil sampling;
s6, driving the mounting rack (21) to ascend through the lifting piece and driving the sampling rod (24) to rotate reversely through the servo motor (23);
s7, the sampling rod (24) with soil is rotated out of the ground, and then the synchronous belt (43) moves to the large-diameter part (71) through the gradual change part (72), so that the synchronous belt (43) is tensioned and the rotating rod (31) is driven to rotate in the accommodating cavity (32);
s8, after the limiting disc (33) rises to abut against the top cavity wall of the second round cavity (322), the clamping groove (53) corresponds to the through groove (51), then the limiting disc (33) drives the drill bit (3) to rise and prompts the spring (55) to return to a natural state, and the spring (55) drives the push ring (54) to slide downwards so that the clamping piece (52) is clamped into the clamping groove (53);
s9, the drill bit (3) is driven to rotate by the rotating rod (31) and rotates out of the ground, and the lifting piece drives the mounting frame (21) to ascend and reset.
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