CN111255374A - Anti-drill-sticking device and method for circumferential impact - Google Patents
Anti-drill-sticking device and method for circumferential impact Download PDFInfo
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- CN111255374A CN111255374A CN202010106298.XA CN202010106298A CN111255374A CN 111255374 A CN111255374 A CN 111255374A CN 202010106298 A CN202010106298 A CN 202010106298A CN 111255374 A CN111255374 A CN 111255374A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 230000002265 prevention Effects 0.000 claims abstract description 10
- 238000009825 accumulation Methods 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims 4
- 238000005553 drilling Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 7
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill sticking prevention device and method for circumferential impact, which utilize the pressure generated by high-pressure water to generate pressure difference at the upper end and the lower end of a piston in an impact main shaft, combine the stored energy and the discharged energy of an energy accumulator to make the impact main shaft axially reciprocate, realize the compound motion of the axial movement and the circumferential rotation of the impact main shaft through the spiral match of the impact main shaft and a joint, then drive an impact hammer on the impact main shaft to circumferentially impact a drill crown, and finally realize the repeated circumferential impact on the drill crown. The invention can effectively prevent the drill bit from jamming during rock stratum drilling.
Description
The technical field is as follows:
the invention relates to the technical field of pile foundation construction engineering, in particular to a drill sticking prevention device and a method capable of eliminating circumferential impact of a drill sticking phenomenon in a drilling process.
Background art:
the drill bit is an important tool for anchoring foundation walls and tunnel walls in pile foundation construction, and is mainly used for cutting and breaking rocks in the pile foundation anchoring construction process. However, when the drill bit is used for drilling into a foundation rock layer, the drill bit is intermittently jammed when the rock layer is broken due to the fact that slag is blocked in the anchoring hole or rock hardness of the stratum below the anchoring hole is caused, torsional elasticity cannot be released, the rock breaking process of the drill bit is extremely unstable, cutting hard alloy cutter grains can be directly damaged, and the service lives of the drill bit and a drilling tool at the lower part are shortened.
The general solution to stuck drill is mainly as follows: the method comprises the following steps of movable unfreezing, jarring unfreezing, back-off unfreezing, milling unfreezing, soaking unfreezing, abrasion unfreezing and explosion unfreezing. Related practitioners can use the two or more modes alternatively according to well conditions, and finally the purpose of safely removing stuck drill is achieved. The mode of knocking and releasing the clamp needs to put a jar, an accelerator and the like into a well together with a fishing tool, and after a falling object is fished and grasped, the clamped pipe column is continuously knocked upwards or downwards through operation according to well conditions, and the clamping point is knocked and released to achieve the purpose of releasing the clamp.
Compared with the traditional jarring stuck-releasing means, the circumferential impact drill sticking prevention device and method provided by the invention can generate circumferential impact with a certain frequency by self without lowering a jar and an accelerator, can more flexibly and rapidly solve the drill sticking phenomenon in construction operation, and improve the production efficiency.
The invention content is as follows:
the invention provides a circumferential impact drill sticking prevention device and a circumferential impact drill sticking prevention method for solving the problems in the prior art, and the circumferential impact drill sticking prevention device can effectively prevent a drill bit from sticking when a rock stratum is drilled.
The technical scheme adopted by the invention is as follows: a drill sticking prevention device with circumferential impact comprises an energy accumulator, a piston seat, an impact main shaft, a joint and a drill bit crown, wherein the energy accumulator, the piston seat, the joint and the drill bit crown are mutually fixed and coaxially arranged from top to bottom; a water inlet flow channel, a first water outlet flow channel, a second water outlet flow channel, a pressure accumulation flow channel and a pressure relief capillary hole are arranged on the piston seat, the first water outlet flow channel, the second water outlet flow channel, the pressure accumulation flow channel and the pressure relief capillary hole are communicated with the piston cavity, the first water outlet flow channel and the second water outlet flow channel are correspondingly positioned on the upper side and the lower side of the piston part, the water inlet flow channel is communicated with the first water outlet flow channel and the second water outlet flow channel, and the pressure accumulation flow channel is communicated with the energy accumulator; the drill bit crown is provided with a washing flow channel and four water outlet holes, and the water inlet flow channel and the washing flow channel are respectively communicated with the two water outlet holes correspondingly.
Furthermore, a piston cavity on the piston seat is of a stepped hole structure with a large circular part and a small circular part, the piston head is arranged in the large circular part of the piston cavity in a sliding mode, the first water outlet flow channel and the pressure relief capillary hole are communicated with the small circular part, and the second water outlet flow channel and the pressure accumulation flow channel are communicated with the large circular part.
Further, the impact main shaft comprises a shaft head part, a pressure relief part and a shaft body part which are integrally formed from top to bottom, the diameter of the shaft body part is larger than that of the shaft head part, the diameter of the shaft head part is larger than that of the pressure relief part, the shaft head part is arranged in a small circular part of a piston cavity in a sliding mode, an inner hole opening of the first water outlet flow channel is sealed by the shaft head part, and the piston head, the spiral head and the impact hammer are arranged on the shaft body part.
Furthermore, the spiral head is of a hemispherical structure, a through hole is formed in the axis direction of the joint, a spiral groove is formed in the inner wall of the through hole, and the spiral head is arranged in the spiral groove.
Furthermore, the impact hammer is of a block structure and is fixedly connected to the shaft body through a screw, an impact hole is formed in the axis direction of the drill bit crown and is of a step-shaped blind hole structure, and two chopping boards which are symmetrically arranged are arranged on the inner wall of the impact hole.
Further, a pressure relief runner is arranged in the axis direction of the impact main shaft, and the pressure relief runner is of a through hole structure.
Furthermore, the first water outlet flow channel and the second water outlet flow channel are arranged along the radial direction of the piston seat, the first water outlet flow channel and the second water outlet flow channel are both in a through hole structure, and plugs are arranged at outer holes of the first water outlet flow channel and the second water outlet flow channel; the pressure accumulation flow channel is of a right-angle structure with a horizontal hole and a vertical hole, the horizontal hole of the pressure accumulation flow channel is of a through hole structure, and a plug is arranged at an outer hole of the horizontal hole.
Further, the accumulator is a diaphragm type accumulator.
Furthermore, an outer pipe is fixed on the drill crown, the piston seat and the joint are both arranged in the outer pipe, an inner pipe is fixed on the piston seat, and the energy accumulator is arranged in the inner pipe.
The invention also provides a circumferential impact drill sticking prevention method, which is characterized in that pressure generated by high-pressure water is utilized to enable the upper end and the lower end of a piston in an impact main shaft to generate pressure difference, the impact main shaft is enabled to axially reciprocate by combining the stored energy and the discharged energy of an energy accumulator, the composite motion of the axial motion and the circumferential rotation of the impact main shaft is realized through the spiral matching of the impact main shaft and a joint, then, an impact hammer on the impact main shaft is driven to circumferentially impact a drill crown, and finally, the repeated circumferential impact on the drill crown is realized.
The invention has the following beneficial effects:
1. the invention can realize circumferential impact to relieve the drill jamming phenomenon and improve the working benefit.
2. According to the invention, high-pressure water enters from the flushing flow passage during normal drilling, so that the drill bit does not generate circumferential impact, and normal drilling is realized. When the drill bit is stuck, high-pressure water enters from the water inlet flow channel, the drill bit is impacted in the circumferential direction, the drill bit sticking phenomenon is relieved, the motion state of the drill bit is adjusted at any time according to the actual working condition, the service life of the drill bit is prolonged, and the cost is saved.
3. The invention has simple structure and is easy to disassemble, assemble and maintain.
Description of the drawings:
FIG. 1 is a rotary sectional view A-A of the present invention.
Fig. 2 is a top view of the present invention.
FIGS. 3 and 4 are views showing the structure of the piston holder according to the present invention
FIG. 5 is a view showing the structure of a joint in the present invention.
FIG. 6 is a view showing the construction of an impact spindle according to the present invention.
Fig. 7 is a view showing the structure of a drill bit crown in the present invention.
Fig. 8 is a structural view of an accumulator according to the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 8, the invention relates to a circumferential impact drill sticking prevention device, which comprises an energy accumulator 3, a piston seat 4, an impact spindle 5, a joint 6 and a drill crown 7, wherein the energy accumulator 3, the piston seat 4, the joint 6 and the drill crown 7 are mutually fixed and coaxially arranged from top to bottom, a piston 51, a spiral head 52 and an impact hammer 53 are arranged on the impact spindle 5, a piston cavity 400 is arranged on the piston seat 4, the piston 51 is slidably connected with the piston cavity 400 on the piston seat 4, the spiral head 52 is spirally connected with the joint 6, and when the impact spindle 5 reciprocates in the axial direction, the impact spindle 5 is spirally connected with the joint 6 so as to realize the rotation of the impact spindle 5 in the axial motion process. The impact hammer 53 extends into the drill bit crown 7, and in the rotating process of the impact main shaft 5, the impact hammer 53 strikes the drill bit crown 7 to realize repeated circumferential impact on the drill bit.
The piston seat 4 is provided with a water inlet flow passage 40, a first water outlet flow passage 41, a second water outlet flow passage 42, a pressure accumulation flow passage 43 and a pressure relief capillary hole 44, the piston seat 4 is provided with two water inlet flow passages 40 which are bilaterally symmetrical, and the water inlet flow passage 40 is respectively provided with the first water outlet flow passage 41, the second water outlet flow passage 42 and the pressure accumulation flow passage 43 which are intersected and penetrated with the water inlet flow passage from top to bottom. One end of the radial first water outlet channel 41 and one end of the radial second water outlet channel 42 are communicated with the water inlet channel 40, the other end of the radial first water outlet channel 41 and one end of the radial second water outlet channel 42 are communicated with the inner cavity of the piston seat 4, and the first water outlet channel 41 and the second water outlet channel 42 are correspondingly positioned at the upper side and the lower side of the piston part 51. The pressure accumulation flow passage 43 communicates the piston chamber 400 and the accumulator 3. The first outlet flow passage 41 and the second outlet flow passage 42 are circumferentially distributed at the same position and circumferentially staggered with respect to the pressure accumulation flow passage 43.
The pressure relief capillary hole 44 is arranged in the axial direction of the piston seat 4, and one end of the pressure relief capillary hole 44 is communicated with the energy accumulator 3, and the other end is communicated with the piston cavity 400.
The drill crown 7 is provided with a flushing channel 74 and four water outlets 75, the water inlet channel 40 penetrates through the piston seat 4 and extends all the way to the drill crown 7 to be correspondingly communicated with the two water outlets 75, and the flushing channel 74 is correspondingly communicated with the two water outlets 75.
The piston cavity 400 on the piston seat 4 is a stepped hole structure with a large circular part and a small circular part, the piston head 51 is slidably arranged in the large circular part of the piston cavity 400, and the piston head 51 divides the inner cavity of the large circular part in the piston cavity 400 into a cavity A and a cavity B. The first water outlet flow passage 41 and the pressure relief capillary hole 44 are both communicated with the small circle part, and the second water outlet flow passage 42 and the pressure accumulation flow passage 43 are both communicated with the large circle part.
The impact main shaft 5 comprises a shaft head part 511, a pressure relief part 512 and a shaft body part 513 which are integrally formed from top to bottom, wherein the diameter of the shaft body part 513 is larger than that of the shaft head part 511, the diameter of the shaft head part 511 is larger than that of the pressure relief part 512, the shaft head part 511 is arranged in a small circular part of the piston cavity 400 in a sliding mode, and the shaft head part 511 seals an inner orifice of the first water outlet flow channel 41 (the matching tolerance of the shaft head part 511 and the piston cavity 400 is controlled within H6/H5, the surface roughness Ra value is smaller than or equal to 0.63, and therefore the sealing performance of the inner orifice of the first water outlet flow channel 41 can be guaranteed while the shaft head part 511 slides in the piston cavity 400). The piston head 51, the screw head 52 and the impact hammer 53 are all arranged on the shaft body part 513.
A through hole is arranged in the axis direction of the joint 6, and two spiral grooves 61 with the same starting angle difference of 180 degrees and the same rotating direction are processed in the through hole of the joint 6 (the thread pitch of the spiral groove 61 is more than 100 mm).
Two semispherical spiral heads 52 with 180-degree intervals are circumferentially fixed on the outer circumferential surface of the shaft body part 513 of the impact main shaft 5, and the two spiral heads 52 are respectively embedded into two spiral grooves with the same spiral direction and 180-degree difference of the initial angles on the inner hole surface of the joint.
In order to enable the impact main shaft 5 to do circumferential torsional motion while reciprocating up and down, under the limit of two spiral grooves with the same circumferential direction and 180-degree staggered initial positions of the joint 6, two spiral heads 52 which are symmetrically distributed and welded with the impact main shaft 5 are clamped into the spiral grooves to drive the main shaft to do circumferential torsional motion while reciprocating axially.
The impact hammer 53 is a block structure, and two impact hammers 53 are arranged, are circumferentially spaced by 180 degrees and are fixed on the shaft body part 513 through a set screw 531.
An impact hole 70 is arranged in the axial direction of the drill crown 7, the impact hole 70 is of a step-shaped blind hole structure, two symmetrically distributed chopping blocks 71 are welded on the inner wall of the impact hole 70 at positions corresponding to the impact hammer 53, and the length of each chopping block 71 is equal to that of the impact hammer of the main shaft.
In order to enable the drill bit to generate circumferential impact action, after the impact main shaft 5 drives the impact hammer fixed at the tail end of the main shaft to perform torsional motion, the impact hammer hammers on a drill bit crown cutting board 71, and the cutting board and the drill bit crown are welded into a whole, so that the circumferential impact action of the whole drill bit is realized.
According to the invention, the outer pipe 1 is in threaded connection with the drill crown 7, the inner pipe 2 is in threaded connection with the piston seat 4 of the impactor, the piston seat 4 and the joint are both arranged in the outer pipe 1, the inner pipe 2 is fixed on the piston seat 4, and the energy accumulator 3 is arranged in the inner pipe 2.
In the normal drilling process, only high-pressure water needs to be injected into the outer pipe 1, enters the washing flow passage 74, and is connected to the water inlet flow passage 40 when the drill jamming condition occurs.
In order to facilitate the consistency of the air pressure inside and outside the valve body, a pressure relief deep hole (namely a pressure relief flow passage 56) penetrating through the axial direction of the main shaft is processed at the center of the impact main shaft, and a pressure relief hole penetrating through the inside and the outside of the drill crown is also formed at the bottom of an inner hole of the drill crown 7.
In order to prevent the water pressure in the cavities a and B from overflowing, three O-rings are mounted on the piston head 51 between the two cavities a, B. The inner hole surface of the contact part of the upper part of the cavity B and the main shaft is provided with a steckel seal 9 with a downward lip, and the inner hole surface of the contact part of the corresponding lower joint 6 of the cavity A and the main shaft is provided with a steckel seal 9 with an upward lip.
The first water outlet flow channel 41 and the second water outlet flow channel 42 are both arranged along the radial direction of the piston seat 4, the first water outlet flow channel 41 and the second water outlet flow channel 42 are both in a through hole structure, and plugs 10 are arranged at outer holes of the first water outlet flow channel 41 and the second water outlet flow channel 42. The pressure accumulation flow passage 43 is of a right-angle structure with a horizontal hole and a vertical hole, and the horizontal hole of the pressure accumulation flow passage 43 is of a through hole structure. In order to facilitate the processing of the piston seat flow channel, each fabrication hole formed in the piston seat 4 needs to be sealed by a plug 10 to seal the hole leaking outwards.
The accumulator 3 in the present invention is a diaphragm type accumulator. The accumulator 3 comprises an accumulator upper body 32, an accumulator lower body 31, an end cover 33, a gas filling screw plug 34, a diaphragm 35 and a bolt. The energy accumulator diaphragm 35 divides the upper and lower bodies of the energy accumulator into an upper chamber and a lower chamber, wherein the upper chamber is positioned at the side of the gas-filling screw plug 34, the lower chamber is communicated with a pressure accumulation flow passage 43 and a pressure relief capillary hole 44, and the upper and lower bodies 32 and 31 of the energy accumulator are connected and fastened on the boss surface at the upper end of the piston seat through six bolts which are uniformly distributed in the circumferential direction. The structure and principle of the energy accumulator 3 are the existing structure, so the working principle of the energy accumulator 3 is not described in detail in the invention.
Because the high-pressure water in the cavity B is continuously extruded into the lower cavity of the energy accumulator 3 through the pressure relief flow passage 43, when the pressure in the lower cavity is too high, the pressure can be relieved through the pressure relief capillary hole 44, and the diameter of the pressure relief capillary hole 44 is phi 1 mm.
In the initial state, when high-pressure water enters the water inlet flow passage 40, the impact main shaft 5 is located at the lowest point under the action of gravity, the impact hammer 53 abuts against the chopping board 71, the second water outlet flow passage 42 on the piston seat 4 is communicated with the cavity A, and the first water outlet flow passage 41 is sealed and stopped by the shaft head 511.
After the high-pressure water flows into the water inlet channel 40, the first water outlet channel 41 is closed, so that the high-pressure water can only enter the cavity A from the second water outlet channel 42 and then acts on the lower end face of the piston head 51, and the impact main shaft is lifted upwards under the action of the hydraulic force.
Because the first water outlet channel 41 is blocked by the outer circular surface of the shaft head 511, the liquid in the cavity B can only flow into the pressure accumulation channel 43 under pressure and then flows into the cavity below the diaphragm of the energy accumulator 3 through the pressure accumulation channel 43, and the energy accumulator starts to accumulate energy.
The impact main shaft continues to lift upwards, when the impact main shaft is lifted to a position that the shaft head part 511 is separated from the first water outlet flow channel 41 and the first water outlet flow channel 41 is located at a through-flow position, high-pressure water can flow into the cavity B from the water inlet flow channel 40 through the first water outlet flow channel 41 at the same time, and as the diameter of the shaft head part 511 is larger than that of the pressure relief part 512, the force-bearing area of the upper end surface of the piston head 51 is far larger than that of the lower end surface, at the moment, the movement direction of the impact main shaft 5 is rapidly reversed, and meanwhile, the impact main shaft is driven to rapidly move downwards by the gravity of the impact main shaft and the energy.
Under the action of downward impact, the downward movement of the impact main shaft causes the first water outlet flow channel 41 to be cut off, and under the limit of the drill bit crown cutting board 71, the impact main shaft 5 is reset, and then the impact process is repeated. Therefore, as long as high-pressure water is continuously introduced into the water inlet flow channel, the structure can continuously generate axial impact action.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (10)
1. The utility model provides a circumference is strikeed prevents sticking to bore device which characterized in that: the energy storage device comprises an energy storage device (3), a piston seat (4), an impact main shaft (5), a connector (6) and a drill bit crown (7), wherein the energy storage device (3), the piston seat (4), the connector (6) and the drill bit crown (7) are mutually fixed and coaxially arranged from top to bottom, the impact main shaft (5) is provided with a piston (51), a spiral head (52) and an impact hammer (53), the piston (51) is in sliding connection with a piston cavity (400) in the piston seat (4), the spiral head (52) is in spiral connection with the connector (6), and the impact hammer (53) extends into the drill bit crown (7); a water inlet flow channel (40), a first water outlet flow channel (41), a second water outlet flow channel (42), a pressure accumulation flow channel (43) and a pressure relief capillary hole (44) are arranged on the piston seat (4), the first water outlet flow channel (41), the second water outlet flow channel (42), the pressure accumulation flow channel (43) and the pressure relief capillary hole (44) are communicated with the piston cavity (400), the first water outlet flow channel (41) and the second water outlet flow channel (42) are correspondingly positioned at the upper side and the lower side of the piston part (51), the water inlet flow channel (40) is communicated with the first water outlet flow channel (41) and the second water outlet flow channel (42), and the pressure accumulation flow channel (43) is communicated with the energy accumulator (3); the drill bit crown (7) is provided with a washing flow channel (74) and four water outlet holes (75), and the water inlet flow channel (40) and the washing flow channel (74) are respectively communicated with the two water outlet holes (75) correspondingly.
2. The circumferentially percussive anti-seize device of claim 1, wherein: the piston cavity (400) on the piston seat (4) is of a stepped hole structure with a large circular part and a small circular part, the piston head (51) is arranged in the large circular part of the piston cavity (400) in a sliding mode, the first water outlet flow channel (41) and the pressure relief capillary hole (44) are communicated with the small circular part, and the second water outlet flow channel (42) and the pressure accumulation flow channel (43) are communicated with the large circular part.
3. The circumferentially percussive anti-seize device of claim 2, wherein: impact main shaft (5) are including axle head portion (511), relief portion (512) and axle body portion (513) from top to bottom integrated into one piece, the diameter of axle body portion (513) is greater than the diameter of axle head portion (511), and the diameter of axle head portion (511) is greater than the diameter of relief portion (512), in the tip of axle (511) slides and arranges the little circle portion of piston chamber (400), and axle head portion (511) will the interior drill way of first play water runner (41) is sealed, piston head (51), spiral head (52) and jump bit (53) all locate on axle body portion (513).
4. The circumferentially percussive anti-seize device of claim 3, wherein: the spiral head (52) is of a hemispherical structure, a through hole is formed in the axis direction of the joint (6), a spiral groove (61) is formed in the inner wall of the through hole, and the spiral head (52) is arranged in the spiral groove (61).
5. The circumferentially percussive anti-seize device of claim 3, wherein: the impact hammer (53) is of a blocky structure, the impact hammer (53) is fixedly connected to the shaft body part (513) through a screw, an impact hole (70) is arranged in the axis direction of the drill crown (7), the impact hole (70) is of a step-shaped blind hole structure, and two symmetrically arranged chopping blocks (71) are arranged on the inner wall of the impact hole (70).
6. The circumferentially percussive anti-seize device of claim 1, wherein: and a pressure relief runner (56) is arranged in the axis direction of the impact main shaft (5), and the pressure relief runner (56) is of a through hole structure.
7. The circumferentially percussive anti-seize device of claim 1, wherein: the first water outlet flow channel (41) and the second water outlet flow channel (42) are arranged along the radial direction of the piston seat (4), the first water outlet flow channel (41) and the second water outlet flow channel (42) are both in a through hole structure, and plugs (10) are arranged at outer holes of the first water outlet flow channel (41) and the second water outlet flow channel (42); the pressure accumulation flow channel (43) is of a right-angle structure with a horizontal hole and a vertical hole, the horizontal hole of the pressure accumulation flow channel (43) is of a through hole structure, and a plug (10) is arranged at an outer hole opening of the horizontal hole.
8. The circumferentially percussive anti-seize device of claim 1, wherein: the energy accumulator (3) is a diaphragm type energy accumulator.
9. The circumferentially percussive anti-seize device of claim 1, wherein: the drill bit is characterized in that an outer tube (1) is fixed on the drill bit crown (7), the piston seat (4) and the joint (6) are arranged in the outer tube (1), an inner tube (2) is fixed on the piston seat (4), and the energy accumulator (3) is arranged in the inner tube (2).
10. A circumferential impact drill jamming prevention method is characterized by comprising the following steps: the upper end and the lower end of a piston in the impact main shaft generate pressure difference by utilizing pressure generated by high-pressure water, the impact main shaft is made to axially reciprocate by combining energy storage and energy release of an energy accumulator, the axial movement and the circumferential rotation combined movement of the impact main shaft are realized by the spiral matching of the impact main shaft and a joint, then the impact hammer on the impact main shaft is driven to circumferentially impact the drill bit crown, and finally the repeated circumferential impact on the drill bit crown is realized.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106298.XA CN111255374B (en) | 2020-02-21 | 2020-02-21 | Anti-drill-sticking device and method for circumferential impact |
| PCT/CN2020/080555 WO2021164091A1 (en) | 2020-02-21 | 2020-03-23 | Circumferential impact drill anti-jamming device and method |
| LU101906A LU101906B1 (en) | 2020-02-21 | 2020-03-23 | An anti-stuck device and method with circumferential impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010106298.XA CN111255374B (en) | 2020-02-21 | 2020-02-21 | Anti-drill-sticking device and method for circumferential impact |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111255374A true CN111255374A (en) | 2020-06-09 |
| CN111255374B CN111255374B (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010106298.XA Active CN111255374B (en) | 2020-02-21 | 2020-02-21 | Anti-drill-sticking device and method for circumferential impact |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN111255374B (en) |
| LU (1) | LU101906B1 (en) |
| WO (1) | WO2021164091A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944424A (en) * | 2020-07-15 | 2022-01-18 | 中泵(无锡)流体装备有限公司 | Hydraulic down-the-hole hammer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914769B (en) * | 2021-10-14 | 2024-08-16 | 周拯 | Drilling speed-increasing tool driven by shaft punch to twist |
| CN116220543B (en) * | 2023-04-06 | 2024-08-09 | 西南石油大学 | Valve-controlled high-energy hydrostatic down-the-hole impact hammer |
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| CN108360974A (en) * | 2018-04-12 | 2018-08-03 | 中国石油大学(北京) | Composite impact tool |
-
2020
- 2020-02-21 CN CN202010106298.XA patent/CN111255374B/en active Active
- 2020-03-23 LU LU101906A patent/LU101906B1/en active IP Right Grant
- 2020-03-23 WO PCT/CN2020/080555 patent/WO2021164091A1/en active Application Filing
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| CN106761388A (en) * | 2017-03-04 | 2017-05-31 | 蒋培丽 | Rotary impact type drilling tool |
| CN108166928A (en) * | 2017-12-26 | 2018-06-15 | 中国石油集团渤海钻探工程有限公司 | There is the compound speed-raising helicoid hydraulic motor of axial vibration and rotational vibration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113944424A (en) * | 2020-07-15 | 2022-01-18 | 中泵(无锡)流体装备有限公司 | Hydraulic down-the-hole hammer |
| CN113944424B (en) * | 2020-07-15 | 2023-06-09 | 中泵(无锡)流体装备有限公司 | Hydraulic down-the-hole hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| LU101906B1 (en) | 2021-01-13 |
| CN111255374B (en) | 2021-04-13 |
| WO2021164091A1 (en) | 2021-08-26 |
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