CN111075347B - Torsion impactor - Google Patents
Torsion impactor Download PDFInfo
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- CN111075347B CN111075347B CN201911295737.XA CN201911295737A CN111075347B CN 111075347 B CN111075347 B CN 111075347B CN 201911295737 A CN201911295737 A CN 201911295737A CN 111075347 B CN111075347 B CN 111075347B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 57
- 238000005553 drilling Methods 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 208000002697 Tooth Abrasion Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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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
- E21B12/00—Accessories for drilling tools
- E21B12/04—Drill bit protectors
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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
- E21B4/02—Fluid rotary type drives
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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 provides a torque impactor which comprises a transmission shaft, a turbine, a torque transmission joint and a plurality of pairs of torque generation devices, wherein the upper end of the transmission shaft is connected with an upper joint through an upper bearing seat, the lower end of the transmission shaft is connected with a lower joint through a lower bearing seat, the lower end of the lower joint is connected with a drill bit, the turbine is arranged on the transmission shaft, the torque transmission joint is positioned below the turbine, the upper end and the lower end of the torque transmission joint are respectively connected with the upper joint and the lower joint, each pair of torque generation devices are arranged inside the torque transmission joint, each torque generation device comprises an impact anvil, a connecting shaft and two impact hammers, the cross section of the impact anvil is in a variable-thickness annular shape, the inner surface of the impact anvil is provided with a first impact surface, the connecting shaft and the two. The invention has the beneficial effects that: the invention can continuously produce torsional impact vibration in the same direction, can effectively avoid the occurrence of drill bit stick-slip phenomenon, and improves the drilling efficiency of the drill bit.
Description
Technical Field
The invention relates to the technical field of drilling tools, in particular to a torsion impactor.
Background
With the development of society, the demand of human beings for natural resources is increasing day by day, and the energy sources which can be used by people at present are mainly fossil fuels such as coal, petroleum, natural gas and shale gas. As the years of production increase, the surface-level, easily produced fossil fuels have become less and the deep, difficult to produce fossil fuels have become more and more challenging to drill. In the drilling process, the problems of bit pressure, rotating speed, bit feeding speed, driller technology, well wall friction and the like often cause bit damage, cutting tooth breakage, over-fast cutting tooth abrasion, influence on rock breaking efficiency and even influence on hole forming (well completion).
In addition, PDC bits (polycrystalline diamond compact bits) typically do not have sufficient torque to break rock when drilling hard rock or abrasive formations, thereby causing sticking; the deep stratum rock of the oil field is hard and has high grinding extreme value, the drilling of a conventional roller bit is applied, the drilling of a single bit is less, the drilling needs to be carried out for many times, and the mechanical drilling speed is lower; when the screw is applied to composite drilling, the screw has short service life and unsatisfactory effect due to higher temperature in the deep well; the drill bit stick-slip vibration phenomenon often appears in deep ultra-deep drilling, leads to the drill bit inefficacy, drilling rate reduction scheduling unfavorable condition.
Disclosure of Invention
In view of this, in order to solve the problems of drill tool failure and low mechanical drilling speed caused by drill bit jamming and stick-slip in the drilling process, embodiments of the present invention provide a torque impactor to overcome the disadvantages of the prior art, increase the drilling speed, protect the drill bit, and reduce the cost, thereby increasing the drilling efficiency.
The embodiment of the invention provides a torque impactor, which comprises a transmission shaft, a turbine, a torque conducting joint and a plurality of pairs of torque generating devices, wherein an upper bearing seat and a lower bearing seat are respectively arranged at the upper end and the lower end of the transmission shaft, the upper end of the transmission shaft penetrates through the upper bearing seat to be connected with an upper joint, the lower end of the transmission shaft penetrates through the lower bearing seat to be connected with a lower joint, the upper joint and the lower joint are hollow pipes, the lower end of the lower joint is connected with a drill bit, the turbine is arranged on the transmission shaft and is positioned below the upper bearing seat, the torque conducting joint is positioned below the turbine, the upper joint and the lower joint are respectively in threaded connection with the upper joint and the lower joint, each pair of the torque generating devices are sequentially arranged in the torque conducting joint from top to bottom, and the two torque generating devices in, each torque force generating device comprises an impact anvil, a connecting shaft and two hammers, the cross section of the impact anvil is in a variable-thickness annular shape, a first impact surface with a certain inclination angle is arranged on the inner surface of the impact anvil, the connecting shaft and the two hammers are positioned in the impact anvil, the two hammers are respectively installed at two ends of the connecting shaft, the connecting shaft is a square shaft and can be movably and vertically connected with the transmission shaft, the turbine is used for driving the transmission shaft to rotate, the transmission shaft is used for driving each connecting shaft to rotate, the connecting shaft is used for driving the hammers to rotate so as to impact the impact anvil to generate torque force and vibration, the two torque force generating devices in each pair of torque force generating devices are mutually matched to generate torque force and torque force impact, and therefore the impact anvil transmits the vibration and the torque force impact to the lower joint through the torque force transmission joint, and transmitting the vibration and the torsional impact to the drill bit by the lower joint.
Furthermore, the upper bearing seat is located inside the upper joint, an upper thrust ball bearing and an upper deep groove ball bearing are arranged in the upper bearing seat, the transmission shaft is connected with the upper bearing seat through the upper thrust ball bearing and the upper deep groove ball bearing, the lower bearing seat and the upper bearing seat are the same in structure and are symmetrical up and down, and an upper nut and a lower nut are respectively arranged at the upper end of the upper bearing seat and the lower end of the lower bearing seat to lock the transmission shaft.
Furthermore, each of the hammers is provided with a second impact surface with a certain inclination angle, and the inclination angle of the second impact surface is equal to that of the first impact surface.
Furthermore, the outer surface of each impact anvil is provided with a square connecting key, and the connecting key is located at the thickest position corresponding to the impact anvil and protrudes out of the outer surface corresponding to the impact anvil.
Furthermore, the cross section of the torsion conduction joint is circular, a plurality of vertical key grooves are uniformly formed in the inner surface of the torsion conduction joint, and the impact anvils are installed on the torsion conduction joint through the matching between the connecting keys and the vertical key grooves.
Further, the upper end of the upper joint is in threaded connection with a drill rod joint, the drill rod joint is connected with a drill rod, and the drill rod is used for driving the drill rod joint to rotate.
Further, the transmission shaft middle part evenly is equipped with a plurality of to square holes from last to down in proper order, each the connecting axle is respectively through one the square hole with the transmission shaft is connected, just the connecting axle with correspond be clearance fit connection between the square hole.
Furthermore, a plurality of upper waist-shaped holes and a plurality of lower waist-shaped holes are respectively arranged on the upper bearing seat and the lower bearing seat, the upper waist-shaped holes are uniformly distributed on the outer sides of the upper thrust ball bearing and the upper deep groove ball bearing, and the lower waist-shaped holes are uniformly distributed on the outer sides of the lower thrust ball bearing and the lower deep groove ball bearing.
Furthermore, a hollow channel is arranged in the drill rod joint, and the ground drilling fluid driving device is communicated with the turbine through the hollow channel and the upper waist-shaped hole.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1) the turbine provides power to drive the impact hammer to rotate and impact the impact anvil, and the rotating speed of the turbine is controlled by drilling fluid, so that the working performance is stable and reliable;
2) the impact vibration part has simple structure and reliable work, and can solve the problems of drill sticking, stick slip and the like in the drilling process;
3) the invention has ingenious design, and can design and install a plurality of pairs of the torsion generating devices according to the requirement so as to obtain different impact frequencies, thereby adapting to the drilling requirements of different conditions;
4) the angle of the contact surface of the impact hammer and the impact anvil can be reasonably adjusted according to actual needs to obtain different impact forces, so that the impact force can be adjusted;
5) the invention has simple operation and installation, and can effectively improve the mechanical drilling speed of the deep well hard rock layer by matching with the PDC drill bit.
Drawings
Fig. 1 is a schematic structural view of a torsion impactor according to the invention.
Fig. 2 is a schematic view of a connection structure between the transmission shaft 1 and the torque generator 4 in fig. 1.
Fig. 3 is a schematic cross-sectional view of the torque generator 4 of fig. 1.
Fig. 4 is a schematic structural view of the upper bearing housing 5 in fig. 1.
In the figure: 1-transmission shaft, 11-square hole, 2-turbine, 3-torsion conduction joint, 4-torsion generating device, 41-impact anvil, 42-connecting shaft, 43-impact hammer, 44-first impact surface, 45-second impact surface, 46-connecting key, 5-upper bearing seat, 51-upper thrust ball bearing, 52-upper deep groove ball bearing, 53-upper nut, 54-upper waist-shaped hole, 6-upper joint, 7-lower bearing seat, 71-lower thrust ball bearing, 72-lower deep groove ball bearing, 73-lower nut, 74-lower waist-shaped hole, 8-lower joint, 9-drill rod joint and 91-hollow channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a torque impactor, which includes a transmission shaft 1, a turbine 2, a torque conducting joint 3, and a plurality of pairs of torque generating devices 4.
The middle part of the transmission shaft 1 is sequentially and uniformly provided with a plurality of square holes 11 from top to bottom, the upper end and the lower end of the transmission shaft are respectively provided with an upper bearing seat 5 and a lower bearing seat 7, the upper end of the transmission shaft 1 penetrates through the upper bearing seat 5 to be connected with an upper joint 6 in a threaded manner, the lower end of the transmission shaft 1 penetrates through the lower bearing seat 7 to be connected with a lower joint 8 in a threaded manner, the upper joint 6 and the lower joint 8 are hollow pipes, the upper end and the lower end of the upper joint 6 and the lower joint 8 are respectively provided with threads, the upper end of the upper joint 6 is connected with a drill rod joint 9 in a threaded manner, the drill rod joint 9 is connected with a drill rod (not shown in the drawing), a hollow channel 91 is arranged in the drill rod joint 9, the lower end of the lower joint 8 is connected with a drill bit (not shown in, whereby the lower joint 8 brings the drill bit into rotation.
Referring to fig. 1 and 4, the upper bearing housing 5 is located inside the upper joint 6, an upper thrust ball bearing 51 and an upper deep groove ball bearing 52 are arranged in the upper bearing housing 5, the transmission shaft 1 is connected to the upper bearing housing 5 through the upper thrust ball bearing 51 and the upper deep groove ball bearing 52, the lower bearing housing 7 and the upper bearing housing 5 have the same structure and are vertically symmetrical, and an upper nut 53 and a lower nut 73 are respectively arranged at the upper end of the upper bearing housing 5 and the lower end of the lower bearing housing 7 to lock the transmission shaft 1, so that the transmission shaft 1 cannot perform axial and radial translational motion but can only perform rotational motion around the axial line thereof, in this embodiment, a plurality of upper waist-shaped holes 54 and a plurality of lower waist-shaped holes 74 are respectively arranged on the upper bearing housing 5 and the lower bearing housing 7, and each upper waist-shaped hole 54 is uniformly distributed outside the upper thrust ball bearing 51 and the upper deep groove ball bearing 52, the lower kidney-shaped holes 74 are uniformly distributed on the outer sides of the lower thrust ball bearing 71 and the lower deep groove ball bearing 72.
The turbine 2 is mounted on the transmission shaft 1 and located below the upper bearing seat 5, the turbine 2 comprises a turbine stator and a turbine rotor (not shown in the drawings), and the turbine rotor is connected with the transmission shaft 1, in this embodiment, a ground drilling fluid driving device is communicated with the turbine 2 through the hollow channel 91 and the upper waist-shaped hole 54, the ground drilling fluid driving device can convey drilling fluid carrying energy to the hollow channel 91 and flow to the turbine 2 through the upper waist-shaped hole 54 to impact turbine blades, so that the turbine 2 converts the fluid energy of the drilling fluid into mechanical energy for rotating the turbine rotor, and the transmission shaft 1 is driven by the turbine rotor to rotate synchronously along with the turbine rotor; the drilling fluid continuously flows downwards after impacting the turbine blades, and finally enters the drill bit after sequentially passing through the torque generating device 4, the lower kidney-shaped hole 74 and the lower joint 8, so that the effects of flushing, lubricating and the like on the drill bit are realized.
The torque force conduction joint 3 is positioned below the turbine 2, the upper end and the lower end of the torque force conduction joint are respectively in threaded connection with the upper joint 6 and the lower joint 8, the cross section of the torque force conduction joint 3 is in a circular ring shape, and a plurality of vertical key grooves (not shown in the attached drawings) are uniformly formed in the inner surface of the torque force conduction joint 3.
Referring to fig. 1 and 3, each pair of the torque force generating devices 4 is sequentially installed inside the torque force conducting joint 3 from top to bottom, and two torque force generating devices 4 in each pair of the torque force generating devices 4 are centrosymmetric. Each of the torque force generating devices 4 includes an impact anvil 41, a connecting shaft 42 and two hammers 43, the cross section of the impact anvil 41 is a variable thickness circular ring, a first impact surface 44 with a certain inclination angle is arranged at the thickest part of the inner surface of the impact anvil 41, a square connecting key 46 is arranged on the outer surface of each of the impact anvils 41, the connecting key 46 is located at the thickest part corresponding to the impact anvil 41 and protrudes out of the outer surface corresponding to the impact anvil 41, and each of the impact anvils 41 is mounted on the torque force transmission connector 3 through the cooperation between the connecting key 46 and the vertical key groove.
Referring to fig. 1 and 2, the connecting shaft 42 and the two hammers 43 are both located inside the impact anvil 41, the two hammers 43 are respectively installed at two ends of the connecting shaft 42, the connecting shaft 42 is a square shaft and movably and vertically connected to the transmission shaft 1, specifically, each connecting shaft 42 is connected to the transmission shaft 1 through one square hole 11, the connecting shaft 42 and the corresponding square hole 11 are in clearance fit connection, each hammer 43 is provided with a second impact surface 45 with a certain inclination angle, the inclination angle of the second impact surface 45 is equal to the inclination angle of the first impact surface 44, the connecting shaft 42 is used for driving the hammers 43 to rotate to impact the impact anvil 41 to generate vibration, so that the impact anvil 41 transmits the vibration to the lower joint 8 through the torsion conductive joint 3 and the vibration is transmitted to the drill bit by the lower joint 8, in the embodiment, the hammer 43 is driven by the transmission shaft 1 and the connecting shaft 42 to rotationally impact the first impact surface 44 by the second impact surface 45, and according to the principle of force action, when the second impact surface 45 is in impact contact with the first impact surface 44, the first impact surface 44 generates a radial component and a tangential component to the hammer 43, and the radial component moves the connecting shaft 42 along the direction of the square hole 11 until the first impact surface 44 is staggered; in addition, the tangential component force is overcome by the acting force provided by the turbine 2, so that the punching hammer 43 continues to rotate under the driving of the turbine 2 and the transmission shaft 1 until the punching hammer 43 impacts the impact anvil 41 after rotating 180 degrees, and the above actions are repeated until the torque generating device 4 generates impact force twice in one circle and enters the next cycle.
In the invention, because a single torsion impact generating device 4 can only generate impact force and impact vibration, and the torsion needs to be generated, the torsion impact generating devices 4 are arranged in pairs to generate two paired impact forces, the two impact forces generated by the paired torsion impact generating devices 4 are basically equal in size and opposite in direction, and the two impact forces are not on the same straight line and meet the requirement of torsion action, so that the torsion action can be generated, and because the torsion impact generating devices 4 have impact vibration in the impact process, the two paired torsion impact generating devices 4 are matched with each other to generate the torsion and the torsion impact.
In this embodiment, one or more pairs of the torque force generating devices 4 may be selectively installed on the transmission shaft 1 according to actual drilling requirements to obtain different torque force impact frequencies, when there are a plurality of pairs of the torque force generating devices 4, each pair of the torque force generating devices 4 is respectively and uniformly installed inside the torque force conducting joint 3, specifically, when there are two pairs of the torque force generating devices 4, one pair of the torque force generating devices 4 is perpendicular to the other pair of the torque force generating devices 4; when there are three pairs of the torque force generating devices 4, the included angle between one pair of the torque force generating devices 4 and the other pair of the torque force generating devices 4 adjacent thereto is 60 °, and so on.
The working principle of the invention is as follows:
in operation, the surface drilling machine drives the drill rod to rotate, so that the drill rod drives the drill rod joint 9 to rotate, the drill rod joint 9 drives the upper joint 6 to rotate, then the upper joint 6 drives the torsion conduction joint 3 to rotate, then the torsion conduction joint 3 drives the lower joint 8 to rotate, and finally the lower joint 8 transmits the rotary power provided by the surface drilling machine to the drill bit to realize rotary cutting and rock breaking; meanwhile, the ground drilling fluid driving device conveys the drilling fluid carrying energy to the turbine 2 sequentially through the hollow channel 91 and the upper waist-shaped hole 51 so as to drive the turbine 2 to rotate, the turbine 2 drives the transmission shaft 1 to rotate, so that the transmission shaft 1 drives the connecting shaft 42 to rotate, the connecting shaft 42 drives the impact hammer 43 to rotate so as to impact the impact anvil 41 to generate torque force and vibration, so that the impact anvil 41 transmits the torque force and the vibration to the lower joint 8 through the torque force transmission joint 3, and the lower joint 8 transmits the torque force and the vibration to the drill bit, so that the drill bit is subjected to the torque force and the vibration provided by the torque force generating device 4 while being subjected to the rotary power provided by the ground drilling machine, and the drill bit can be effectively protected, and the drill bit can drill under the action of torsional impact and vibration, so that efficient rock breaking is realized, and the drilling efficiency is improved.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A torsion impactor is characterized in that: including transmission shaft, turbine, torsion conduction joint and a plurality of to torsion generating device, both ends are equipped with bolster bearing housing and step respectively about the transmission shaft, just the transmission shaft upper end is run through bolster bearing housing connects the top connection, the transmission shaft lower extreme runs through the step connects the step, the top connection with the lower clutch is the hollow tube, the lower clutch lower extreme is connected with the drill bit, the turbine is installed on the transmission shaft and it is located bolster bearing housing below, torsion conduction joint is located turbine below and its upper and lower both ends are threaded connection respectively the top connection with the lower clutch, it is every right torsion generating device is from last to installing in proper order down inside the torsion conduction joint, and every is every right two among the torsion generating device be central symmetry between the torsion generating device, each torsion generating device all includes strikes hammering block, torsion generating device, The cross section of the impact anvil is in a variable-thickness circular ring shape, a first impact surface with a certain inclination angle is arranged on the inner surface of the impact anvil, the connecting shaft and the two punching hammers are both positioned in the impact anvil, the two punching hammers are respectively arranged at two ends of the connecting shaft, the connecting shaft is a square shaft and can be movably and vertically connected with the transmission shaft, the turbine is used for driving the transmission shaft to rotate, the transmission shaft is used for driving each connecting shaft to rotate, the connecting shafts are used for driving the punching hammer to rotate so as to impact the impact anvil to generate torque and vibration, two torque generating devices in each pair of torque generating devices are matched with each other to generate torque and torque impact, whereby the impact anvil transmits the vibration and the torsional impact through the torsional conductive joint to the lower joint and from the lower joint to the drill bit.
2. A torsional impactor as defined in claim 1, wherein: the upper bearing seat is positioned inside the upper joint, an upper thrust ball bearing and an upper deep groove ball bearing are arranged in the upper bearing seat, the transmission shaft is connected with the upper bearing seat through the upper thrust ball bearing and the upper deep groove ball bearing, the lower bearing seat and the upper bearing seat are the same in structure and are symmetrical up and down, and an upper nut and a lower nut are respectively arranged at the upper end of the upper bearing seat and the lower end of the lower bearing seat to lock the transmission shaft.
3. A torsional impactor as defined in claim 1, wherein: each impact hammer is provided with a second impact surface with a certain inclination angle, and the inclination angle of the second impact surface is equal to that of the first impact surface.
4. A torsional impactor as defined in claim 1, wherein: the outer surface of each impact anvil is provided with a square connecting key, and the connecting key is located at the thickest position corresponding to the impact anvil and protrudes to correspond to the outer surface of the impact anvil.
5. A torsional impactor as defined in claim 4, wherein: the cross section of the torque force transmission joint is in a ring shape, a plurality of vertical key grooves are uniformly formed in the inner surface of the torque force transmission joint, and the impact anvils are installed on the torque force transmission joint through the matching between the connecting keys and the vertical key grooves.
6. A torsional impactor as defined in claim 2, wherein: the upper end of the upper joint is in threaded connection with a drill rod joint, the drill rod joint is connected with a drill rod, and the drill rod is used for driving the drill rod joint to rotate.
7. A torsional impactor as defined in claim 1, wherein: the transmission shaft middle part evenly is equipped with a plurality of to square holes down in proper order from last, each the connecting axle is respectively through one the square hole with the transmission shaft is connected, just the connecting axle with correspond be clearance fit connection between the square hole.
8. A torsional impactor as defined in claim 6, wherein: the upper bearing seat and the lower bearing seat are respectively provided with a plurality of upper waist-shaped holes and a plurality of lower waist-shaped holes, the upper waist-shaped holes are uniformly distributed on the outer sides of the upper thrust ball bearing and the upper deep groove ball bearing, and the lower waist-shaped holes are uniformly distributed on the outer sides of the lower thrust ball bearing and the lower deep groove ball bearing.
9. A torsional impactor as defined in claim 8, wherein: a hollow channel is arranged in the drill rod joint, and the ground drilling fluid driving device is communicated with the turbine through the hollow channel and the upper waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911295737.XA CN111075347B (en) | 2019-12-16 | 2019-12-16 | Torsion impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911295737.XA CN111075347B (en) | 2019-12-16 | 2019-12-16 | Torsion impactor |
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| Publication Number | Publication Date |
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| CN111075347A CN111075347A (en) | 2020-04-28 |
| CN111075347B true CN111075347B (en) | 2020-11-27 |
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| CN201911295737.XA Active CN111075347B (en) | 2019-12-16 | 2019-12-16 | Torsion impactor |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6742609B2 (en) * | 2001-05-11 | 2004-06-01 | United Diamond Ltd. | Rotational impact drill assembly |
| CN105971492B (en) * | 2016-06-08 | 2018-04-24 | 西南石油大学 | A kind of magnetic base torsion impact drilling tool |
| CN108661550B (en) * | 2018-08-02 | 2023-11-10 | 西南石油大学 | Unidirectional impactor based on turbine and spring |
| CN110259374B (en) * | 2019-07-26 | 2024-02-06 | 中国地质科学院勘探技术研究所 | High Wen Yingyan accelerating drilling tool |
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