CN106894757A - A kind of horizontal directional drill jetting type surges churn drilling tools - Google Patents
A kind of horizontal directional drill jetting type surges churn drilling tools Download PDFInfo
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- CN106894757A CN106894757A CN201510959098.8A CN201510959098A CN106894757A CN 106894757 A CN106894757 A CN 106894757A CN 201510959098 A CN201510959098 A CN 201510959098A CN 106894757 A CN106894757 A CN 106894757A
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- horizontal directional
- drilling
- drilling tools
- fluidic
- surges
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
Abstract
Surged churn drilling tools the invention discloses a kind of horizontal directional drill jetting type, belong to hard bad ground Pipeline Crossing by Horizontal Directional Drilling pipeline laying construction field.The churn drilling tools drives drilling tool to provide longitudinal impact force using high-pressure fluid as dynamic medium, and then impulsive force is transferred into drill bit and crushing hard rock stratum using hammering block；The churn drilling tools at least includes：Top connection, butterfly spring, adjust pad, upper press cover, outer shell, fluidic, cylinder body, stroke adjustment cone bar, piston, cylinder cap, center tap, block stamp, guide runner, outer tube, semicircle card, from all directions hammering block, set and sealing structure.Its working stability, ballistic work is big, and rock breaking capacity is strong, can be obviously improved the drilling efficiency of firm hard formation Pipeline Crossing by Horizontal Directional Drilling construction, shortens Pipeline Crossing by Horizontal Directional Drilling construction period, reduces Pipeline Crossing by Horizontal Directional Drilling pipeline laying construction cost；Suitable for the construction of ground consisting of hard rock Pipeline Crossing by Horizontal Directional Drilling pilot hole rotary-percussive drilling.
Description
Technical field
The present invention relates to hard bad ground Pipeline Crossing by Horizontal Directional Drilling pipeline laying construction field, more particularly to one
Kind of horizontal directional drill jetting type surges churn drilling tools.
Background technology
In China, the application field of Pipeline Crossing by Horizontal Directional Drilling pipe-laying technique more extensiveization and specialization are bored
Meet stratum and diversified trend is also presented.Because traditional horizontal directional drilling pipe-laying technique is adapted in ground consisting of hard rock
The poor, drilling efficiency of property is low, and the research of hard rock horizontal directional drilling pipe-laying technique is delayed, has had a strong impact on water
The development of flat directional drilling pipe-laying technique.As the quantities that no-dig technique is passed through in pipe-line construction engineering is continuous
Increase, pass through most economical, ageing most strong directional drilling crossing quantities as no-dig technique and be also on the increase,
And it is ageing in ground consisting of hard rock directional drilling crossing at this stage can not highlight, drilling efficiency is relatively low.
Broken rock mode mainly has two kinds in conventional drilling operation, and one kind is revolution cutting broken rock, and another is
Rock fracture in dynamic indentation.Pipeline Crossing by Horizontal Directional Drilling pilot hole drilling in, limited by complex formation condition, it is hard,
Broken formation can not meet the technology need of modernization, Development of Urbanization using conventional directed drilling technique and method
Ask, cause drilling efficiency low, long construction period, drilling cost is high, has had a strong impact on Pipeline Crossing by Horizontal Directional Drilling
Drilling technology is popularized energetically and popularization and application.
Realize it is of the invention during, inventor find prior art at least there is problems with：
Mainly include the screw rod of some offer moments of torsion and rotating speed in the existing drilling tool of Pipeline Crossing by Horizontal Directional Drilling construction field
Drilling tool, measurement-while-drilling system and other measurement of correlations and the simple drill of connection, and do not occur to remove from office
New technology, the special drilling tool for being exclusively used in ground consisting of hard rock for improving drilling efficiency.
At this stage without percussion drilling technique in Pipeline Crossing by Horizontal Directional Drilling engineering, hard rock ground is not found suitable for yet
The churn drilling tools of layer Pipeline Crossing by Horizontal Directional Drilling, only has small-bore punching in other geological drillings and oil field
Hit drilling tool.
To sum up, the existing general bore of normal impact drilling tool is smaller, and ballistic work is smaller, it is impossible to apply on hard rock ground
Layer horizontal directional drilling in, be not sufficiently stable using heavy caliber hydraulical impact drilling tool service behaviour, service life compared with
It is short.
The content of the invention
In order to solve problem of the prior art, a kind of horizontal directional drill jetting type is the embodiment of the invention provides
Hydraulical impact drilling tool.Ballistic work is big, and rock breaking capacity is strong, working stability, effectively improves firm hard formation level and determines
To the drilling efficiency of Drilling for Pipeline Crossing, drilling cost is reduced, shorten construction period, improve making for churn drilling tools
Use the life-span.The technical scheme is as follows：
A kind of horizontal directional drill jetting type surges churn drilling tools, using high-pressure fluid as dynamic medium, drives
Drilling tool provides longitudinal impact force, and then impulsive force is transferred into drill bit and crushing hard rock stratum using hammering block；Should
Churn drilling tools at least includes：Top connection, butterfly spring, adjust pad, upper press cover, outer shell, fluidic,
Cylinder body, stroke adjustment cone bar, piston, cylinder cap, center tap, block stamp, guide runner, outer tube, semicircle card,
Hammering block, from all directions set and sealing structure.
The top connection bottom couples outer shell, and the outer shell bottom couples center tap, the center tap bottom connection
Outer tube, the outer tube bottom connection covers from all directions, and using trapezoidal tapers thread connection, connection taper is 1/20.
The outer shell inner chamber has been sequentially arranged upper press cover, fluidic body, gray iron from top to bottom,
Stroke adjustment cone bar, piston are provided with the cylinder body, are piston rod below the piston.
The upper press cover bottom connection fluidic is simultaneously sealed by O-ring seal, while by O-shaped sealing
Circle and outer shell sealing, are provided with butterfly spring, adjust pad on the upper press cover, the upper press cover top is stretched
Enter the inner chamber of top connection and sealed by O-ring seal.
The cylinder body top is sealed by O-ring seal with fluidic, and by O-ring seal and outer shell
Sealing；Piston lower portion is sealed by O-ring seal with cylinder cap and outer shell, and the cylinder body bottom passes through alignment pin
Couple with cylinder cap, the cylinder cap is sealed with piston rod by groove structure, groove structure is arranged at cylinder cap and work
In the centre bore of stopper rod contact, the piston is hardened with cylinder body medial surface contact area by plating phosphorus nickel surface.
The stroke adjustment cone bar is arranged in cylinder body and bottom couples with piston, and underpart of the piston rod connects in stretching into
The inner chamber of head simultaneously couples with block stamp, is coupled using Morse's taper.
The fluidic at least include alloy nozzle, fluidic body, alloy bottom plate, alloy side plate,
Alloy splitter；The alloy nozzle, alloy bottom plate, alloy side plate, alloy splitter are carbide mosaic
Component, is sequentially arranged on the fluidic body with high-pressure fluid contact area, and use swallow from top to bottom
Stern notch mosaic mode, fluid passage is formed between each component, to stabilization switching and the smooth emptying of fluid,
Thus fluidic is constituted.
The inner chamber of the outer tube has been sequentially arranged block stamp, hammering block from top to bottom, is set at the undergauge of the block stamp bottom
The guide runner of several carbon fiber polytetrafluoroethylene (PTFE) materials is equipped with, is circumferentially uniformly distributed, on the hammering block
Portion is provided with semicircle card, and with all directions set using being slidably connected, the hammering block inner chamber is provided with passage, bottom at middle part
Portion is provided with the conical screw hole coupled with lower contact.
The guide runner is carbon fiber polytetrafluoroethylene (PTFE) material, is uniformly distributed in six keyways of block stamp circumference
It is interior, in spline form, to the righting of horizontal directional drilling block stamp and stabilization.
The block stamp is formed by steel alloy is Nian Jie with carbon fiber polytetrafluoroethylene (PTFE).
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
The horizontal directional drill jetting type churn drilling tools that surges is that a kind of to use bistable fluidic element be control machine
The new drilling tool of structure, its working stability, ballistic work is big, and rock breaking capacity is strong, can be obviously improved firm hard formation
The drilling efficiency of Pipeline Crossing by Horizontal Directional Drilling construction, shortens Pipeline Crossing by Horizontal Directional Drilling construction period, reduces level and determines
To drilling more pipeline laying construction cost；Effectively in ground consisting of hard rock horizontal orientation in solution Constructions of No Dig Installation of Pipelines
The problem of scarce capacity when drilling more broken rock, changes the situation of the single revolution broken rock of conventional directional drilling crossing, energy
Amount utilization rate is high, it is adaptable to which ground consisting of hard rock Pipeline Crossing by Horizontal Directional Drilling pilot hole rotary-percussive drilling is constructed, application
Have good prospects.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, institute in being described to embodiment below
The accompanying drawing for needing to use is briefly described, it should be apparent that, drawings in the following description are only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that horizontal directional drill jetting type provided in an embodiment of the present invention churn drilling tools overall structure of surging is shown
It is intended to；
Fig. 2 is upper partial structural diagram in Fig. 1 provided in an embodiment of the present invention；
Fig. 3 is lower partial structural diagram in Fig. 1 provided in an embodiment of the present invention；
Fig. 4 is B-B sectional views in Fig. 3 provided in an embodiment of the present invention.
Each symbol represents that implication is as follows in figure：
1 top connection；2,7,8,11,12,13,17 is O-ring seal；3 butterfly springs；4 adjust pads；5
Screw；6 upper press covers；9 outer shells；
10 fluidics,
10.1 alloy nozzles, 10.2 fluidic bodies, 10.3 alloy bottom plates, 10.4 alloy side plates, 10.5
Alloy splitter；
14 cylinder bodies；15 stroke adjustments bore bar；16 pistons；18 cylinder caps；19 alignment pins；20 center taps；21
Block stamp；22 guide runners；23 outer tubes；24 semicircle cards；25 hammering blocks；26 cover from all directions；27 piston rods.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Implementation method is described in further detail.
It is shown in Figure 1, the embodiment of the invention provides a kind of horizontal directional drill jetting type and surge impact drill
Tool, is a horizontally oriented and drills in more Constructions of No Dig Installation of Pipelines pilot hole drilling process using rotary-percussive drilling
Specific drilling tool, is exclusively used in competent bed Pipeline Crossing by Horizontal Directional Drilling drilling construction field, and the drilling tool is with high-pressure fluid
As dynamic medium, drilling tool is driven to do work to form extensional vibration, there is provided the longitudinal impact force in wellbore construction,
The effect of impact detritus and rotary drilling double action is reached, and then impulsive force is transferred to drill bit using hammering block
Impact its front working face and crushing hard rock stratum；The churn drilling tools at least includes：Top connection 1, O-shaped sealing
It is circle 2,7,8,11,12,13,17, butterfly spring 3, adjust pad 4, screw 5, upper press cover 6, outer
Cylinder 9, fluidic 10, cylinder body 14, stroke adjustment cone bar 15, piston 16, cylinder cap 18, alignment pin 19,
Center tap 20, block stamp 21, guide runner 22, outer tube 23, semicircle card 24, hammering block 25, from all directions set 26,
The grade parts of piston rod 27.
Specifically, the lower thread of the top connection 1 connection outer shell 9, the lower thread of outer shell 9 connection center tap 20,
The lower thread of center tap 20 couples outer tube 23, and the connection of the lower thread of outer tube 23 covers 26 from all directions, using trapezoidal
Taper thread couples, and connection taper is 1/20；From all directions hammering block 25 is provided with set 26；Always it is about after connection
It is 2622mm, external diameter is about 203.2mm.
The inner chamber of the outer shell 9 has been sequentially arranged upper press cover 6, fluidic 10, cylinder body 14, cylinder from top to bottom
Stroke adjustment cone bar 15, piston 16 are provided with lid 18, cylinder body 14, piston 16 is below piston rod 27；
The bottom of the upper press cover 6 is coupled fluidic 10 and is sealed by O-ring seal 8 by screw 5, while
Sealed with outer shell 9 by O-ring seal 7, butterfly spring 3, adjustment are provided with the cylinder of upper press cover 6
Pad 4, butterfly spring 3 plays buffering pretension effect, and fitted position error can be by butterfly spring 3 or adjusting pad
Piece 4 is adjusted, so that the overload protection to any parts in impact drilling system is realized, to avoid impact drill
Tool is subject to unexpected external force and is damaged during Pipeline Crossing by Horizontal Directional Drilling wellbore construction, it is ensured that churn drilling tools
The normal work in well；The top of the upper press cover 6 stretch into the inner chamber of top connection 1 and by O-ring seal 2 it is close
Envelope.
The top of the cylinder body 14 is sealed by O-ring seal 11 with fluidic 10, while by O-shaped close
Seal 12,13 is sealed with outer shell 9；The bottom of piston 16 is by O-ring seal 17 and cylinder cap 18 and outer shell 9
Helixseal, the bottom of cylinder body 14 is coupled by alignment pin 19 with cylinder cap 18, and cylinder cap 18 leads to piston rod 27
Cross annular groove sealing structure and realize sealing, annular groove is sealed into pressure differential decreasing principle, and groove structure is arranged at cylinder
In the centre bore that lid 18 is contacted with piston rod 2727, annular groove depth is 3mm, and width is also between 3mm, annular groove
Away from being 12mm, annular groove sealing structure can realize the dynamic sealing between piston rod 27 and cylinder cap 18, play steady
The effect of the cavity of resorption operating pressure of cylinder body 14 is determined, to ensure the stability that churn drilling tools works；The piston 16
Surface hardened layer is realized by plating phosphorus nickel with the medial surface contact area of cylinder body 14, so as to strengthen the wear-resisting of piston 16
Ability, improves sealing of the piston 16 in motion process in cylinder body 14, improves the workability of churn drilling tools
Energy.
The stroke adjustment cone bar 15 is arranged in cylinder body 14 and bottom couples with piston 16, piston rod 27
Bottom is stretched into the inner chamber of center tap 20 and is coupled with block stamp 21, is coupled using Morse's taper；Stroke adjustment is bored
The stroke range of bar 15 is 0~100mm, and impact stroke is freely adjustable, and ballistic work 450J~520J can
Different ballistic work and working frequencies are provided with according to stroke different in churn drilling tools system, to meet impact
Drilling tool carries out technical requirements when Pipeline Crossing by Horizontal Directional Drilling is constructed in Different Strata.
Referring also to shown in Fig. 2, the fluidic 10 at least includes alloy nozzle 10.1, fluidic sheet
The parts such as body 10.2, alloy bottom plate 10.3, alloy side plate 10.4, alloy splitter 10.5；The alloy
Nozzle 10.1, alloy bottom plate 10.3, alloy side plate 10.4, alloy splitter 10.5 are sequentially arranged from top to bottom
On the fluidic body 10.2 with high-pressure fluid contact area, and use dovetail groove mosaic mode, each group
Fluid passage is formed between part, to stabilization switching and the smooth emptying of fluid, fluidic 10 is thus constituted；
The alloy nozzle 10.1, alloy bottom plate 10.3, alloy side plate 10.4, alloy splitter 10.5 are hard
Alloy insert assembly, to strengthen the abrasion resistance and bulk strength of fluidic 10, and then improves jet impulse
The whole service life of drilling tool.
Referring also to shown in Fig. 3, Fig. 4, the inner chamber of the outer tube 23 be sequentially arranged from top to bottom block stamp 21,
Hammering block 25, is provided with the guide runner of several carbon fiber polytetrafluoroethylene (PTFE) materials at the bottom undergauge of block stamp 21
22, circumferentially it is uniformly distributed, the impact body that horizontally-guided sliding block 22 is constituted with block stamp 21 water in outer tube 23
During flat reciprocating motion, there is the coefficient of waste during friction pair horizontal due to horizontally-guided sliding block 22 and steel alloy composition
Small the features such as, therefore, it is possible to play a part of correcting block stamp 21, while improving the anti-wear performance of block stamp 21；
The top of hammering block 25 is provided with semicircle card 24, and the middle part of hammering block 25 uses with all directions set 26 and is slidably connected, to prevent
Hammering block 25 departs from churn drilling tools or not with churn drilling tools rotation；The inner chamber of hammering block 25 is provided with passage, and bottom sets
It is equipped with the conical screw hole for coupling with lower contact.
The guide runner 22 is carbon fiber polytetrafluoroethylene (PTFE) material, and common round key shape, quantity is six,
Uniform bonding is distributed in the surrounding of block stamp 21, in spline form, to the righting of horizontal directional drilling block stamp 21
It is placed in six keyways of the even circumferential of block stamp 21 distribution with stabilization, and guide runner 22, horizontally-guided is slided
Block 22 is small with the coefficient of waste of block stamp 21, and horizontally-guided is strong, can play a part of correcting block stamp 21, is protecting
Flow section product reduces the eccentric wear of block stamp 21 and shows to greatest extent on the premise of meeting its job requirement in card churn drilling tools
As, the uniform wear of the horizontal friction pair that outer tube 23 is constituted with horizontally-guided sliding block 22, block stamp 21 is realized,
So as to improve the service life of churn drilling tools；The block stamp 21 is by two kinds of steel alloy and carbon fiber polytetrafluoroethylene (PTFE)
Material bonding is formed, it is intended to set up the less horizontal sliding friction pair of coefficient of friction, so as to not influence impact
Its service life is improved on the basis of drilling tool bulk strength and performance；The semicircle card 24 coordinates block stamp 21
With hammering block 25, piston 16 and the collective effect of cylinder body 14, blank-run prevention effect is played, when block stamp 21 is with hammering block
After 25 go downwards to command range, the motion in cylinder body 14 of piston 16 also reaches bottom dead centre, and the cavity of resorption of cylinder body 14 enters
The mouth of a river is blocked, and high-pressure fluid can not enter cavity of resorption and drive piston 16 to make drawback movement, and then play blank-run prevention
Effect, be automatically stopped work after going out well so as to churn drilling tools, prevent under unloaded acting on to churn drilling tools
Infringement.
The assembling process of the embodiment of the present invention：It is shown in Figure 1, stroke adjustment is bored into bar 15, piston first
16 are sequentially placed into cylinder body 14, then cylinder cap 18 and cylinder body 14 are riveted to be integrally formed by alignment pin 19 are put into
In outer shell 9, and outer shell 9 is tightened with center tap 20；Upper press cover 6 and fluidic 10 are passed through simultaneously
The top of the inner chamber of outer shell 9 is put into after screw attachment, adjust pad 4, disk spring 3 are put into upper press cover successively
In 6, finally top connection 1 is tightened with outer shell 9；After the completion of superstructure assembling, adjusting pad is measured and determined
The exact thickness of piece 4.
The piston rod 27 that block stamp 21 and guide runner 22 are connected to below piston 16 is bored into section, and is placed
In in outer tube 23, outer tube 23 is tightened with center tap 20；Hammering block 25 is put into set 26 from all directions, then will
Semicircle card 24 is put into outer tube 23 after blocking hammering block 25, and finally all directions set 26 is tightened with outer tube 23, complete
Into assembling.
The horizontal directional drill jetting type surges churn drilling tools when assembling, it should be noted that each part sealing ring assembles matter
Amount, sealing especially between the lower end of fluidic 10 and cylinder body 14, cylinder body 14 and outer shell 9, upper press cover 6
With the sealing between fluidic 10；During assembling and use, it should be noted that check O-ring seal everywhere
Integrity degree, abrasion with hurt sealing ring should change in time, it is ensured that reliable operation at each part sealing,
Leakage is not produced.The length of the O-ring seal 11 on cylinder body 14 be reference value, should choose with cylinder body 14
The sealing ring that matches of sealed groove, the O-ring seal 12,13 of the outer groove of cylinder body 14 can not it is too tight or
It is too loose, when cylinder body 14 loads outer shell 9, machine oil should be smeared in the surrounding of cylinder body 14 or the inner chamber of outer shell 9, and by
One end slowly earnestly enters the endoporus of outer shell 9, honest fashionable close attention O-ring seal, prevents it from being hurt or cut off；
Cylinder body 14 in place after, then built-up piston 16 and cylinder cap 18, especially it is noted that on cylinder body 14 and cylinder cap 18
Cylinder cap 18 is gently tapped after the positioning alignment of alignment pin 19 again to be allowed in place, after cylinder body 14 loads outer shell 9, first
Center tap 20 is tightened, and then compresses cylinder cap 18, prevent vibration；Elasticity is should be noted that during assembling piston 16,
Should not be too tight or too loose, should ensure that piston 16 is moved freely, without jam phenomenon with block stamp 21 in cylinder body 14.
During assembling outer tube 23 and hammering block 25, the stroke dimension of check and correction churn drilling tools should be measured.Impact drill
Clear water pressure testing 5 minutes, No leakage is answered under 20MPa after the completion of tool assembling.Meanwhile, churn drilling tools assemble when and make
With rear, should be in screw thread and internal each piece surface oiling antirust.Horizontal directional drill jetting type hydraulical impact
Can integrally case transport after the completion of drilling tool assembling, it is also possible to dismantle point disome fortune after center tap 20 and block stamp 21
It is defeated.
The operation principle of the embodiment of the present invention：The horizontal directional drill jetting type surges churn drilling tools and screw motor
Drilling tool is used cooperatively, connecting mode be screw motor drilling tool in the rear end of the churn drilling tools, and churn drilling tools
Upper and lower joint is respectively API standard nipple, top connection 1 and Pipeline Crossing by Horizontal Directional Drilling construction abrasion drill
Tool connection, lower contact couples with rock bit or other attached drilling equipments.
After top connection 1 couples with drilling rod or screw motor drilling tool, the highly pressurised liquid exported by slush pump, through boring
After bar or screw motor, top connection 1 at the alloy nozzle 10.1 of input jet element 10, high-pressure jet from
Alloy nozzle 10.1 is sprayed at a high speed, produces attached wall effect, if first attached wall is in right side, water under high pressure is initially entered
The epicoele of cylinder body 14, promotes piston 16 to do work, and the block stamp 21 coupled with piston 16 just impacts hammering block 25,
Hammering block 25 is coupled with threaded connection mode with other drilling tools, and impulsive force just reaches drill bit through drill bit top drilling tool,
This just forms one-shot effect.Jetting type is driven to surge churn drilling tools work by the circulating mud of screw motor
Make, on the one hand high-pressure slurry drives churn drilling tools fractured rock, on the other hand drives it to turn round, it is to avoid in punching
Smash during rock and drill bit occur and be stuck phenomenon, while reducing drilling rod revolution, reduce the mill of drilling tool in device to hole
Damage.
While output, feedback signal is back to the signal control hole of fluidic 10 to high-pressure fluid, in piston
16 strokes finally, promote jet to produce commutation, and fluid is through leading to that fluidic 10 couples with the cavity of resorption of cylinder body 14
Road enters the cavity of resorption of cylinder body 14, then promotes piston 16 to make back motion；Equally, exported in high-pressure fluid
While, feedback signal is passed to another signal control road of fluidic 10, so as to jet be changed to again
Starting position, so lives to return and realizes percussion action.
The upper and lower cavity backwater of cylinder body 14 is then returned to drain hole by two Efferent tubes of fluidic 10, then is passed through
With emptying hole path, center tap 20 and the endoporus of hammering block 25 injection lower drilling tool and drill bit, complete bottom hole and rinse
And drill bit cooling, finally return back to earth's surface aperture.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all of the invention
Within spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in of the invention
Within protection domain.
Claims (10)
1. a kind of horizontal directional drill jetting type surges churn drilling tools, using high-pressure fluid as dynamic medium, drives
Dynamic drilling tool provides longitudinal impact force, and then impulsive force is transferred into drill bit and crushing hard rock stratum using hammering block；
Characterized in that, the churn drilling tools at least includes：Top connection, butterfly spring, adjust pad, upper press cover,
Outer shell, fluidic, cylinder body, stroke adjustment cone bar, piston, cylinder cap, center tap, block stamp, guiding are slided
Block, outer tube, semicircle card, from all directions hammering block, set and sealing structure.
2. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The top connection bottom couples outer shell, and the outer shell bottom couples center tap, and the center tap bottom connection is outer
Pipe, the outer tube bottom connection covers from all directions, and using trapezoidal tapers thread connection, connection taper is 1/20.
3. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The outer shell inner chamber has been sequentially arranged upper press cover, fluidic, gray iron, the cylinder body from top to bottom
Stroke adjustment cone bar, piston are inside provided with, are piston rod below the piston.
4. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
Connection fluidic in the upper press cover bottom is simultaneously sealed by O-ring seal, at the same by O-ring seal with
Outer shell is sealed, and butterfly spring, adjust pad are provided with the upper press cover, and the upper press cover top is stretched into
The inner chamber of joint is simultaneously sealed by O-ring seal.
5. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The cylinder body top is sealed by O-ring seal with fluidic, and is sealed by O-ring seal and outer shell；
Piston lower portion is sealed by O-ring seal with cylinder cap and outer shell, and the cylinder body bottom passes through alignment pin and cylinder cap
Connection, the cylinder cap is sealed with piston rod by groove structure, and groove structure is arranged at cylinder cap and is connect with piston rod
In tactile centre bore, the piston is hardened with cylinder body medial surface contact area by plating phosphorus nickel surface.
6. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The stroke adjustment cone bar is arranged in cylinder body and bottom couples with piston, and underpart of the piston rod stretches into center tap
Inner chamber simultaneously couples with block stamp, is coupled using Morse's taper.
7. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The fluidic at least includes alloy nozzle, fluidic body, alloy bottom plate, alloy side plate, alloy
Splitter；The alloy nozzle, alloy bottom plate, alloy side plate, alloy splitter are carbide mosaic component,
It is sequentially arranged from top to bottom on the fluidic body with high-pressure fluid contact area, and using dovetail groove edge
Embedding mode, fluid passage is formed between each component, and the stabilization to fluid switches and smooth emptying, thus structure
Into fluidic.
8. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The inner chamber of the outer tube has been sequentially arranged block stamp, hammering block from top to bottom, is provided with the undergauge of the block stamp bottom
The guide runner of several carbon fiber polytetrafluoroethylene (PTFE) materials, is circumferentially uniformly distributed, and the hammering block top sets
Semicircle card is equipped with, with all directions set using being slidably connected, the hammering block inner chamber is provided with passage, and bottom sets at middle part
It is equipped with the conical screw hole coupled with lower contact.
9. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, it is characterised in that
The guide runner is carbon fiber polytetrafluoroethylene (PTFE) material, is uniformly distributed in six keyways of block stamp circumference,
In spline form, to the righting of horizontal directional drilling block stamp and stabilization.
10. horizontal directional drill jetting type according to claim 1 surges churn drilling tools, and its feature exists
In the block stamp is formed by steel alloy is Nian Jie with carbon fiber polytetrafluoroethylene (PTFE).
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| CN107313715A (en) * | 2017-08-22 | 2017-11-03 | 吉林大学 | Jet hammer with feeder current accumulation of energy function |
| CN107676034A (en) * | 2017-09-19 | 2018-02-09 | 西迪技术股份有限公司 | A kind of high-abrasive material and torsion impact device |
| CN109424314A (en) * | 2017-08-25 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of horizontal well hydraulic impacter |
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| CN107313715B (en) * | 2017-08-22 | 2019-11-05 | 吉林大学 | Jet hammer with feeder current accumulation of energy function |
| CN109424314A (en) * | 2017-08-25 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of horizontal well hydraulic impacter |
| CN109424314B (en) * | 2017-08-25 | 2021-01-05 | 中国石油化工股份有限公司 | Hydraulic impactor for horizontal well |
| CN107676034A (en) * | 2017-09-19 | 2018-02-09 | 西迪技术股份有限公司 | A kind of high-abrasive material and torsion impact device |
| CN109707305A (en) * | 2019-02-02 | 2019-05-03 | 吉林大学 | A kind of super burn formula single-acting Hydro-Hammer Drilling Tool and impact rotating method |
| CN109707305B (en) * | 2019-02-02 | 2024-02-13 | 吉林大学 | Super-combustion type single-action impact rotary drilling tool and impact rotary method |
| CN109930998A (en) * | 2019-05-07 | 2019-06-25 | 刘伟 | A kind of PDC drill bit rock crushing tool |
| CN113585960A (en) * | 2021-08-05 | 2021-11-02 | 重庆大学 | Centre rotary valve type hydraulic impactor |
| CN113585960B (en) * | 2021-08-05 | 2023-11-21 | 重庆大学 | Central rotary valve type hydraulic impactor |
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