CN108487867A - Core pipe and its splice combinations built in a kind of drilling rod - Google Patents
Core pipe and its splice combinations built in a kind of drilling rod Download PDFInfo
- Publication number
- CN108487867A CN108487867A CN201810424782.XA CN201810424782A CN108487867A CN 108487867 A CN108487867 A CN 108487867A CN 201810424782 A CN201810424782 A CN 201810424782A CN 108487867 A CN108487867 A CN 108487867A
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- Prior art keywords
- female
- male connector
- nipple
- headstock
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 230000008878 coupling Effects 0.000 claims abstract description 56
- 238000010168 coupling process Methods 0.000 claims abstract description 56
- 238000005859 coupling reaction Methods 0.000 claims abstract description 56
- 210000002445 nipple Anatomy 0.000 claims abstract description 53
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 35
- 210000004907 gland Anatomy 0.000 claims description 33
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims 1
- 238000009966 trimming Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 28
- 238000010276 construction Methods 0.000 description 10
- 239000004568 cement Substances 0.000 description 5
- 239000011440 grout Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 3
- 240000007741 Lagenaria siceraria Species 0.000 description 2
- 235000009797 Lagenaria vulgaris Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/043—Threaded with locking means
Landscapes
- 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)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Core pipe and its splice combinations built in a kind of drilling rod, including two groups of fluid pressure lines disposed in parallel with coupling assembly, nipple assembly and oil pipe, external headstock, inscribed headstock and and positioning plate, coupling assembly includes the first coupling, quick pin end, the outside locking nut and the first O-ring, and the first coupling is fixed after being inserted into the first socket of external headstock with the outside locking nut；Quick pin end is tightened against in the upper end internal thread of the first coupling；Nipple assembly includes the first nipple, interior head locking nut, quick female connector and the first O-ring, and the first nipple is fixed after being inserted into the second socket that headstock is inscribed with interior head locking nut；Quick female connector is tightened against in the lower end internal thread of the first nipple；It is fixedly mounted with positioning plate respectively between two the first couplings and two the first nipples.The present invention ensures that quick coupling accurately connects, and improves the sealing performance of fluid pressure line, easy to operate, fast and reliable, and dismounting is simple, is easy to the trimming of drilling rod grouting pipeline.
Description
Technical field
It is the present invention relates to a kind of built-in core pipe and its splice combinations, more particularly to a kind of for planting stake drilling engineering method construction
Core pipe and its splice combinations built in the drilling rod of hydraulic pressure reaming drilling machine.
Background technology
With the construction of the foundation engineerings such as heavy construction, high-speed railway, highway, large bridge and Urban Underground piping lane
Development largely uses the novel bearings stakes such as various club-footed piles and Bottle gourd pile, piling technique tool to improve the bearing capacity of pile foundation
Have that reasonable for structure, pile shaft material intensity is high, bearing capacity of single pile is big, increases low withdrawal resistance, danger coefficient, short construction period and engineering
The features such as low cost, therefore be used widely in pile foundation construction.And the construction of above-mentioned various club-footed piles and Bottle gourd pile is completed, mesh
Stake drilling machine is planted in preceding a large amount of uses and popularization static pressure reaming, and it is hard to may pass through sand bed, middle weathered rock formation etc. by the super drilling tool of outfit
Stratum, and ream operation can be carried out in the middle part of stake holes bottom or stake holes after application reaming bit reaming, it is formed more than stake
Big hole, single pile section maximum gauge is up to Ф 1500mm, and drilling depth is up to 100m or more.Reaming drilling machine is complete in ream operation
Cheng Hou injects mud to stake holes bottom by hollow drill pipe inner cavity, finally the prefabricated pile of all kinds of forms is pressed into stake holes, table
Bright static-pressure pile planting technology can effectively improve the bearing capacity of single pile, reduce soil compaction effect, and with low-carbon energy-saving, environmental protection
Effect, will be more widely used in construction of future cities.For the drilling rod that current hydraulic pressure reaming drilling machine uses, in order to
Meet to borehole-enlarging drilling tool built-in extension oil cylinder and hydraulic power supply be provided, the oil inlet being arranged on drilling rod and oil return line generally have with
Under several forms and its there are the problem of：1）The hydraulic oil pipe of drilling rod inner cavity setting, by the way of being suspended from drill pipe bore, with
When the increase of drilling depth needs adjunction drilling rod, can not ensure its it is easy to connect and quickly in place.2）Hydraulic oil pipe setting is being bored
On the outside of bar, easily makes jackrod structure and increasingly complex, oil pipe serious wear is installed, and poor sealing performance, drilling machine expansion is greatly lowered
Hole operating efficiency.3）A kind of built-in oil pipe drill rod such as announced in Chinese patent CN103206176A, each unit drilling rod is upper
Hexagonal socket bottom is respectively provided with retainer plate and baffle ring, oil inlet pipe and oil return in counterbore step and lower end at the outer-hexagonal end surface of end
Pipe is disposed in parallel relation to one another in drilling rod inner cavity, and the seal receptacle by being set on upper and lower retainer plate is fixed, and quick coupling
It screws in the seal receptacle of upper end retainer plate, quick coupling seat screws in the seal receptacle of lower end retainer plate.In this way, upper
When the docking of lower two drilling rods, the quick coupling of the oil inlet pipe and oil return pipe of lower part drilling rod be inserted into respectively top rod oil inlet pipe and
The quick coupling seat of oil return pipe.This structure setting pattern causes to connect between oil inlet pipe and oil return pipe and retainer plate quite multiple
It is miscellaneous, bring extreme difficulties to processing, and manufacturing cost is high, also make the product after installation in use and cannot be effectively ensured into
The sealing performance of oil pipe and oil return pipe, in use, when and cement grout that drilling rod inner cavity can occur enter in oil pipe, cause drilling rod
The reaming bit failure of front end can influence the timely unlatching for expanding cutting fin and gathering, substantially reduce construction efficiency at any time.This
Outside, also extremely difficult in the grouting pipeline cleaning to drilling rod inner cavity, it is not easy to clean up the cement grout for remaining on pipeline, from
And construct when such drilling machine is used for next time, influence the quality of bored pile.
Invention content
It is a primary object of the present invention to overcome disadvantage existing for existing reaming borer drill rod, providing a kind of can be effectively ensured
The drilling rod built-in oil pipe and its splice combinations that quick coupling accurately connects are effectively improved the sealing performance of hydraulic oil pipe connection, and
Have the characteristics that reliable and installing and dismounting facility convenient and simple for operation, is conducive to the grouting pipeline progress positioned at drilling rod inner cavity
Cleaning and trimming reduce Construction Cost to greatly improve drilling machine ream operation efficiency.
The present invention is achieved through the following technical solutions：
Core pipe and its splice combinations built in a kind of drilling rod, including：Two groups disposed in parallel with coupling assembly, nipple assembly
And there is the fluid pressure line of the oil pipe of pipe fitting between coupling assembly and nipple assembly, external headstock, inscribed headstock
And positioning plate, wherein：
External headstock include pedestal with two symmetrical first sockets and the first injected hole and be connected to above pedestal and its
The upper flange with the first opposite notch；
Coupling assembly includes the first coupling, quick pin end, the first locking nut and the first O-ring；Among, first is external
Head is equipped with bulge loop in its outer wall, and when being installed in external headstock, the first socket of pedestal of external headstock is shelved on by bulge loop
On bottom end, and its outer wall is divided into the first axle journal and the second following axle journal above by boundary of bulge loop；First coupling is also wrapped
Include the upper end internal thread being located in the first axle journal corresponding position endoporus, as the outer lower end in the second axle journal corresponding position endoporus
Counterbore, the outer lower end external screw thread below the second axle journal and the outer wall opposite with the pedestal of external headstock are equipped with outer
One annular groove；Wherein,
Quick pin end, which includes outer wall, has the male connector body of collar, male connector spool, male connector rubber cushion, male connector gland, male connector spring, public affairs
Head spring base, joint sealing pad, connector O-ring and male connector baffle ring；Male connector body is located at axle journal, collar in the male connector above its collar
Lower section is followed successively by axle journal under male connector, male connector wall annular groove, male connector external screw thread, further includes having male connector inner conical surface at male connector body upper end
Male connector through-hole, the male connector groove at male connector through-hole lower face；Male connector spool includes spool male cone (strobilus masculinus), the valve positioned at its head
Mandrel shoulder and valve core rod；Male connector gland includes public gland step at its upper end and public gland outer journal；Male connector spring base packet
Include multiple male connector oilholes and upper end blowout patche across its ontology；
Inscribed headstock include pedestal with two symmetrical second sockets and the second injected hole and be connected to below pedestal and its
The upper flange with the second opposite notch；
Nipple assembly includes the first nipple, the first locking nut, quick female connector and the first O-ring；First nipple exists
Its outer wall is equipped with bulge loop, and when being installed in inscribed headstock, the second socket of pedestal top of inscribed headstock is shelved on by bulge loop
On, and its outer wall is divided into the 4th axle journal and following third axle journal above by boundary of bulge loop；Second nipple further includes position
A upper external screw thread in above the 4th axle journal, is located at third axle journal at the 5th axle journal above an interior upper external screw thread
The interior lower end internal thread and the outer wall opposite with the pedestal of inscribed headstock being located at be equipped in an annular groove；Wherein,
Quick female connector includes seat, female valve rod, female lasso, female spring, mother under female body, female locking nut, female
Head valve set, female gland, joint sealing pad, connector O-ring, a female gasket, a female O-ring, female two gaskets, mother two are O-shaped
Circle and female rubber cushion；Female body includes multiple female oilholes across its ontology, screw thread, axis in the female above its collar
Axle journal, female lower end counterbore and female through-hole under screw thread, female under female below ring further include being located at the upper and lower axle journal of female
On female on annular groove under annular groove and female；Seat includes female inner seat internal thread positioned at the upper and lower end of its endoporus and mother under female
Inner seat annular groove；Female valve rod include bar screw thread at its upper end, lower end bar groove and valve rod male cone (strobilus masculinus)；Female valve pocket
It include the set inner conical surface positioned at counterbore and lower end in the set groove, set of its outer wall；
It is characterized in that：
Two groups of fluid pressure lines are formed by connecting by connected pipes, coupling assembly and nipple assembly respectively, the connection oil
The upper end of pipe is installed in the outer lower end counterbore of the first coupling by pipe fitting, and lower end is set in the 5th of the first nipple
On axle journal；
The external headstock is installed in the scalariform counterbore base of the male fittings body from external hollow drill pipe by its flange；
The coupling assembly of two groups of fluid pressure lines is inserted into the coupling respectively by the second axle journal of the first coupling
The first O-ring is installed after two symmetrical first sockets and respectively in an annular groove outside in seat, is locked respectively by described first
Nut, which is screwed, is fixed on the first coupling on the pedestal of external headstock after on the outer lower end external screw thread of the first coupling；
The quick pin end is screwed by the male connector external screw thread of its male connector body in the upper end internal thread of the first coupling, described
Setting joint sealing pad and connector O-ring in the male connector wall annular groove of male connector body；
The male connector spool of the quick pin end is placed in the upper end of the male connector through-hole of male connector body, the spool male cone (strobilus masculinus) on head with
Male connector inner conical surface is fitted close；Male connector rubber cushion is installed at the spool shaft shoulder of the male connector spool；The male connector gland is set in public affairs
The valve core rod upper end of head spool；The male connector spring is installed on the valve core rod of the public gland outer journal of male connector gland, male connector spool
On the peripheral surface of the upper end blowout patche of male connector spring base, and between male connector gland and male connector spring base；The male connector spring
In in the male connector through-hole of male connector body, the male connector baffle ring is installed in the male connector groove of male connector body seating；
The inscribed headstock is installed in the scalariform counterbore bottom of socket in the female connector from external hollow drill pipe by its flange
Portion；
The nipple assembly of two groups of fluid pressure lines is inserted into the nipple respectively by the 4th axle journal of the first nipple
The first O-ring is installed after two symmetrical second sockets and respectively in an annular groove inside in seat, is locked respectively by described second
Nut, which is screwed, is fixed on the first nipple on the pedestal of inscribed headstock after in the first nipple on a upper external screw thread；
Screw thread is screwed in the lower end internal thread of the first nipple in the female that the quick female connector passes through its female body；It is described
Joint sealing pad and connector O-ring are set in the female of female body in annular groove；Seat passes through its female inner seat internal thread under the female
It is tightened against under the female of female body on screw thread, the female gasket of annular groove setting, a female O-ring under the female of female body；
The female lasso is placed on counterbore in the female lower end counterbore of female body and the set of female valve pocket in suit female spring
Between；The female valve pocket is placed under female in the endoporus of seat, the female gasket of the interior installation of the set groove on female valve pocket outer wall,
A female O-ring, female two O-rings of female inner seat annular groove installation and female rubber cushion of the endoporus lower end of seat under the female；The female
The valve rod male cone (strobilus masculinus) of valve rod is fitted close with the set inner conical surface of female valve pocket lower end；
The female valve rod its lower end journal and bar groove suit female gland and female rubber cushion after pass through female lasso and
The central through hole of female body, the bar screw thread by the female locking nut screwing in female valve rod are locked；
Displacement E of the male connector spool and male connector gland of the quick pin end in the male connector through-hole of male connector body, it is described quickly
Displacement F of the female valve pocket of female connector under female in seat endoporus, wherein the displacement of the relatively rapid female connector of quick pin end
Difference is E-F=0.20~0.50mm；
The positioning plate is packed in two the first couplings in the coupling assembly of two groups of fluid pressure lines respectively and nipple is total
Between two the first nipples in.
The present invention can be, the flange of the longitudinal center lines of two fluid pressure lines relative to outer headstock and inscribed headstock
The parallelism tolerance of outer circle requires to be 0.08-0.10mm.
The present invention is also possible that the spool male cone (strobilus masculinus) angle of the male connector poppet head of the quick pin end and quick mother connect
The valve rod male cone (strobilus masculinus) angle on the female valve rod head of head is β 1, the male connector inner conical surface angle of the male connector body of the quick pin end
Set inner conical surface angle with the female valve pocket lower end of quick female connector is β 2, their numerical value is between 58 °~63 °, wherein
The differential seat angle that they allow is 1=0.015 °~0.025 ° of β 2- β.
Description of the drawings
Fig. 1 is drilling rod built-in oil pipe and its splice combinations of the present invention；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is the vertical view of Fig. 1；
Fig. 4 is the upward view of Fig. 1；
Fig. 5 is the schematic structural cross-sectional view of quick pin end in drilling rod built-in oil pipe and its splice combinations of the present invention；
Fig. 6 is B direction views in Fig. 5；
Fig. 7 is the schematic structural cross-sectional view of quick female connector in drilling rod built-in oil pipe and its splice combinations of the present invention；
Fig. 8 is C direction views in Fig. 7；
Fig. 9 is the partial structural diagram of the male connector spool of quick pin end in Fig. 5；
Figure 10 is the partial structural diagram of the male connector body of quick pin end in Fig. 5；
Figure 11 is the partial structural diagram of the female valve rod of quick female connector in Fig. 7；
Figure 12 is the partial structural diagram of the female valve pocket of quick female connector in Fig. 7.
Specific implementation mode
Drilling rod built-in oil pipe of the present invention and its splice combinations are further described below in conjunction with attached drawing.
Core pipe and its splice combinations built in a kind of drilling rod, including：Two groups disposed in parallel with coupling assembly, nipple
Assembly and between coupling assembly and nipple assembly with pipe fitting 261 steel oil pipe 26 fluid pressure line 27,27 ',
External headstock 240, inscribed headstock 250 and positioning plate 29；Wherein,
External headstock 240 include have two symmetrical first sockets 2401,2401 ' and first injected hole 2403,2403 ' bottom
Seat and the flange for being connected to above pedestal and having thereon the first opposite notch 2402,2402 '；In general, first notch is also
Part extends down into and the opposite sides in pedestal circumferential surface outer wall.
Coupling assembly includes the first coupling 245, quick pin end 246, the first locking nut 247 and the first O-ring
55；Among, the first coupling 245 is shelved on when being installed in external headstock 240 by bulge loop in its outer wall equipped with bulge loop
On the first socket of pedestal bottom end of external headstock, and its outer wall is divided into the first axle journal 2453 above and following by boundary of bulge loop
The second axle journal 2452；First coupling 245 further includes the upper end internal thread being located in 2453 corresponding position endoporus of the first axle journal
2451, as in 2452 corresponding position endoporus of the second axle journal outer lower end counterbore 2454, positioned at the lower section of the second axle journal 2452
The outer annular groove 24521 that outer lower end external screw thread 2456 and the outer wall opposite with the pedestal of external headstock 240 are equipped with；It is described
External headstock 240 is installed in the scalariform counterbore base of the male fittings body from external hollow drill pipe by its flange.
Quick pin end 246 include outer wall have the male connector body 2461 of collar, male connector spool 2469, male connector rubber cushion 2468,
Male connector gland 2467, male connector spring 2466, male connector spring base 2462, joint sealing pad 777, connector O-ring 778 and male connector baffle ring
555；Male connector body 2461 is located at axle journal 24611 in the male connector above its collar, collar lower section is followed successively by axle journal 24612 under male connector,
Male connector wall annular groove 24613, male connector external screw thread 24614 further include having the male connector of male connector inner conical surface 24616 logical at male connector body upper end
Hole 24615, the male connector groove 24618 at male connector through-hole lower face；Male connector spool 2469 includes the spool positioned at its head
Male cone (strobilus masculinus) 24691, the spool shaft shoulder 24692 and valve core rod 24693；Male connector gland 2467 includes public gland step at its upper end
24671 and public gland outer journal 24672；Male connector spring base 2462 includes multiple male connector oilholes 24627 across its ontology and upper
Hold blowout patche 24622.
Inscribed headstock 250 includes having two symmetrical second sockets 2501, and 2501 ' and second injected hole 2503,2503 '
Pedestal and be connected to below pedestal and the flange with the second opposite notch 2502,2502 ' thereon；In general, this second lack
Mouth also part extends upward into and the opposite sides in pedestal circumferential surface outer wall.
Nipple assembly includes the first nipple 255, the first locking nut 247, quick female connector 256 and the first O-ring
55；First nipple 255 is equipped with bulge loop in its outer wall, and when being installed in inscribed headstock 250, nipple is shelved on by bulge loop
On the second socket of pedestal top of seat, and its outer wall is divided into the 4th axle journal 2552 and following third above by boundary of bulge loop
Axle journal 2553；First nipple 255 further includes the interior upper external screw thread 2556 for being located at 2552 top of the 4th axle journal, is located at interior one
5th axle journal 2557 of the top of upper external screw thread 2556, positioned at third axle journal 2553 be located in a lower end internal thread 2551 and
The outer wall opposite with the pedestal of inscribed headstock 250 be equipped in an annular groove 25521.
Quick female connector 256 includes seat 2562, female valve rod under female body 2563, female locking nut 2561, female
2565, female lasso 2564, female spring 2566, female valve pocket 2569, female gland 2567, joint sealing pad 777, connector O
Type circle 778, a female gasket 557, a female O-ring 558, female two gaskets 667, female two O-rings 668 and female rubber cushion 2568；
Female body 2563 include it is multiple across the female oilhole 25637 of its ontology, in the female above its collar screw thread 25631,
Axle journal 25633, female lower end counterbore 25636 and female through-hole 25635 under screw thread 25634, female under female below collar, also
It include annular groove 25632 under annular groove 25638 and female in the female on the upper and lower axle journal of female；Seat 2562 includes position under female
Female inner seat internal thread 25621 of the upper and lower end in hole and female inner seat annular groove 25622 in the inner；Female valve rod 2565 includes being located at it
The bar screw thread 25651 of upper end, the bar groove of lower end（25652）With valve rod male cone (strobilus masculinus) 25653；Female valve pocket 2569 includes position
In the set inner conical surface 25693 of counterbore 25692 and lower end in the set groove 25691, set of its outer wall.
Two groups of fluid pressure lines 27,27 ' connected respectively by connected pipes 26, coupling assembly and nipple assembly and
At specifically, the outer lower end that the upper end of the connected pipes 26 is installed in the first coupling 245 by pipe fitting 261 is heavy
Hole 2454, lower end are set on the 5th axle journal 2557 of the first nipple 255.
The external headstock 240 is installed in the scalariform counterbore of the male fittings body from external hollow drill pipe by its flange
Bottom.
The coupling assembly of two groups of fluid pressure lines 27,27 ' is divided by the second axle journal 2452 of the first coupling 245
Two symmetrical first sockets 2401,2401 ' in the external headstock 240 are not inserted into afterwards and outside to distinguish in an annular groove 24521
First O-ring 55 is installed, is screwed respectively in spiral shell outside an outer lower end for the first coupling 245 by first locking nut 247
First coupling 245 is fixed on the pedestal of external headstock 240 after on line 2456.
The quick pin end 246 is screwed by the male connector external screw thread 24614 of its male connector body 2461 in the first coupling 245
Upper end internal thread 2451 in, setting joint sealing pad 777 and connector O in the male connector wall annular groove 24613 of the male connector body 2461
Type circle 778.
The male connector spool 2469 of the quick pin end 246 is placed in the upper end of the male connector through-hole 24615 of male connector body 2461,
Its head spool male cone (strobilus masculinus) 24691 is fitted close with male connector inner conical surface 24616；The spool shaft shoulder of the male connector spool 2469
Male connector rubber cushion 2468 is installed at 24692；The male connector gland 2467 is set in 24693 upper end of valve core rod of male connector spool 2469；
The male connector spring 2466 is installed on the valve core rod of the public gland outer journal 24672 of male connector gland 2467, male connector spool 2469
24693 and male connector spring base 2462 upper end blowout patche 24622 peripheral surface on, and be located at male connector gland 2467 and male connector spring base
Between 2462；The male connector spring base 2462 is placed in the male connector through-hole 24615 of male connector body 2461, and the male connector baffle ring 555 is pacified
In male connector groove 24618 loaded on male connector body 2461.
The inscribed headstock 250 is installed in the scalariform of socket in the female connector from external hollow drill pipe by its flange
Counterbore base.
The nipple assembly of two groups of fluid pressure lines 27,27 ' is divided by the 4th axle journal 2552 of the first nipple 255
Two symmetrical second sockets 2501,2501 ' in the inscribed headstock 250 are not inserted into afterwards and inside to distinguish in an annular groove 25521
First O-ring 55 is installed, is screwed respectively in spiral shell outside a upper end in the first nipple 255 by second locking nut 257
First nipple 255 is fixed on the pedestal of inscribed headstock 250 after on line 2556；The inscribed headstock 250 passes through its flange
It is installed in the scalariform counterbore base of socket in the female connector from external hollow drill pipe.
Screw thread 25631 is screwed in the first nipple 255 in the female that the quick female connector 256 passes through its female body 2563
Lower end internal thread 2551 in；Joint sealing pad 777 and connector O are set in the female of the female body 2563 in annular groove 25638
Type circle 778；Seat 2562 is tightened against screw thread under the female of female body 2563 by its female inner seat internal thread 25621 under the female
On 25634, a female gasket 557, a female O-ring 558 is arranged in annular groove 25632 under the female of female body 2563；The female set
Circle 2564 is placed on the female lower end counterbore 25636 of female body 2563 and the set of female valve pocket 2569 in suit female spring 2566
Between interior counterbore 25692；The female valve pocket 2569 is placed under female in the endoporus of seat 2562, on 2569 outer wall of female valve pocket
It covers and a female gasket 557, a female O-ring 558 is installed in groove 25691, under the female in the mother of the endoporus lower end of seat 2562
Seat ring slot 25622 installs female two O-rings 668 and female rubber cushion 2568；The valve rod male cone (strobilus masculinus) 25653 of the female valve rod 2565 with
The set inner conical surface 25693 of 2569 lower end of female valve pocket is fitted close；The female valve rod 2565 is in its lower end journal and bar groove
Pass through the center of female lasso 2564 and female body 2563 logical after being set with female gland 2567 and female rubber cushion 2568 at 25652
Hole, the bar screw thread 25651 that female valve rod 2565 is tightened against by the female locking nut 2561 are locked；
Male connector through-hole 24615 of the male connector spool 2469 and male connector gland 2467 of the quick pin end 246 in male connector body 2461
Interior displacement E, the displacement F of the female valve pocket 2569 of the quick female connector 256 under female in 2562 endoporus of seat,
In, the displacement difference of the quick relatively rapid female connector of pin end is E-F=0.20~0.50mm.
Be packed in respectively in the coupling assembly of two groups of fluid pressure lines 27,27 ' two of the positioning plate 29 are first external
First 245 and nipple assembly in two the first nipples 255 between.
Method of the longitudinal center line of two fluid pressure lines 27,27 ' relative to external headstock 240 and inscribed headstock 250
The parallelism tolerance of blue outer circle requires to be 0.08-0.10mm.In this way, when upper and lower part drilling rod docking has been effectively ensured, lower part
The quick pin end 246 of two fluid pressure lines 27,27 ' is inserted into top rod the quick of two fluid pressure lines 27,27 ' in drilling rod
In female connector 256 it is quick, be properly inserted in place with sufficiently reliable docking, and in quick pin end 246 from quick female connector
Timely disengaging can be reached when 256 separation, while being dismantled convenient for drilling rod, the sealing performance of fluid pressure line is effectively improved.
24691 angle of spool male cone (strobilus masculinus) on 2469 head of male connector spool of the quick pin end 246 and quick female connector
25653 angle of valve rod male cone (strobilus masculinus) on 256 2565 head of female valve rod is β 1, the male connector body of the quick pin end 246
25693 angle of set inner conical surface of 2461 24616 angle of male connector inner conical surface and 2569 lower end of female valve pocket of quick female connector 256
It is β 2, their numerical value is between 58 °~63 °, wherein 1=0.015 °~0.025 ° of β 2- β.In this way, they are effectively ensured it
Between combine closely, to improve two fluid pressure lines sealing performance so that drilling machine ream operation is normally effective.
When upper and lower two hollow drill pipes dock, the quick public affairs in underlying lower hollow drilling rod built-in oil pipe combination
For connector 246 after the quick female connector 256 in being inserted into the upper hollow drilling rod built-in oil pipe being located above combination, two groups quickly public
The male connector body 2461 of connector 246 while the female valve pocket 2569 of two groups of quick female connectors 256 of uplink pushing tow, by female valve pocket 2569
The valve rod male cone (strobilus masculinus) 25653 on 2565 head of the set disengaging female of inner conical surface 25693 valve rod of lower end, while quick pin end 246
Male connector spool 2469 is limited by the female valve rod 2565 of quick female connector 256, the male connector body 2461 of quick pin end 246
Male connector inner conical surface 24616 is also disengaged with the spool male cone (strobilus masculinus) 24691 on 2469 head of male connector spool, to make two hollow brills up and down
The connection of the built-in oil pipe of bar.
When two groups of built-in oil pipes are arranged in the Kong Zhonghou from external hollow drill pipe, between hollow drill pipe inner cavity
Transfer pipeline of the gap as cement grout, and by the way that two symmetrical first injected holes in 240 pedestal of outer plinth are arranged
2403,2403 ' in opposite the first notch 2402,2402 ' of pedestal upper outer wall and flange, be arranged at 250 bottom of interior plinth
Seat two symmetrical second sockets 2501,2501 ' and second injected hole 2503,2503 ' be connected to pedestal upper outer wall
And the grouting pipeline of entire hollow drill pipe is connected to by opposite the second notch 2502,2502 ' of flange.It is opened after the completion of ream operation
Beginning grouting with plunger is constructed, and by the hole completed with a certain proportion of cement grout injection preboring, extracts whole drilling rods, will be prefabricated
In stake indentation prebored hole, complete to plant stake operation after cement grout is combined with prefabricated pile completion of cure.
Hydraulic pressure core pipe and its splice combinations are effectively ensured quick coupling and accurately connect built in drilling rod of the present invention, improve hydraulic oil
The sealing performance of pipe connection, it is convenient and simple for operation easy and safe and reliable, convenient for fluid pressure line installation and removal, be conducive to pair
Grouting pipeline positioned at drilling rod inner cavity is cleaned and is rebuild, and improves drilling machine ream operation efficiency, engineering construction is greatly lowered
Cost.
Without departing from present general inventive concept, various transformation and improvement can also be done to the present invention, but only
Will it is identical as composition of the present invention or equivalent if, also belong to protection scope of the present invention.
Claims (3)
1. core pipe and its splice combinations built in a kind of drilling rod, including：Two groups disposed in parallel total with coupling assembly, nipple
At and between coupling assembly and nipple assembly have pipe fitting（261）Oil pipe（26）Fluid pressure line（27,
27’）, external headstock（240）, inscribed headstock（250）And positioning plate（29）, wherein：
External headstock（240）Including having two symmetrical first sockets（2401,2401 '）With the first injected hole（2403,
2403’）Pedestal and be connected to above pedestal and there is the first opposite notch thereon（2402,2402 '）Flange；
Coupling assembly includes the first coupling（245）, quick pin end（246）, the first locking nut（247）It is O-shaped with first
Circle（55）；Among, the first coupling（245）It is equipped with bulge loop in its outer wall, is installed on external headstock（240）When middle, by convex
Ring is shelved on the first socket of pedestal bottom end of external headstock, and its outer wall is divided into the first axle journal above by boundary of bulge loop
（2453）With the second following axle journal（2452）；First coupling（245）Further include being located at the first axle journal（2453）Corresponding position
Upper end internal thread in endoporus（2451）, as the second axle journal（2452）Outer lower end counterbore in the endoporus of corresponding position
（2454）, be located at the second axle journal（2452）The outer lower end external screw thread of lower section（2456）And with external headstock（240）Pedestal
The outer annular groove that opposite outer wall is equipped with（24521）；Wherein,
Quick pin end（246）There is the male connector body of collar including outer wall（2461）, male connector spool（2469）, male connector rubber cushion
（2468）, male connector gland（2467）, male connector spring（2466）, male connector spring base（2462）, joint sealing pad（777）, connector it is O-shaped
Circle（778）With male connector baffle ring（555）；Male connector body（2461）The axle journal in the male connector above its collar（24611）, below collar
It is followed successively by axle journal under male connector（24612）, male connector wall annular groove（24613）, male connector external screw thread（24614）, further include male connector body upper end
Place has male connector inner conical surface（24616）Male connector through-hole（24615）, male connector groove at male connector through-hole lower face
（24618）；Male connector spool（2469）It include the spool male cone (strobilus masculinus) positioned at its head（24691）, the spool shaft shoulder（24692）And spool
Bar（24693）；Male connector gland（2467）Including public gland step at its upper end（24671）With public gland outer journal
（24672）；Male connector spring base（2462）Including multiple male connector oilholes across its ontology（24627）With upper end blowout patche（24622）；
Inscribed headstock（250）Including having two symmetrical second sockets（2501,2501 '）With the second injected hole（2503,
2503’）Pedestal and be connected to below pedestal and there is the second opposite notch thereon（2502,2502 '）Flange；
Nipple assembly includes the first nipple（255）, the first locking nut（247）, quick female connector（256）It is O-shaped with first
Circle（55）；First nipple（255）It is equipped with bulge loop in its outer wall, is installed on inscribed headstock（250）When middle, shelved by bulge loop
On the second socket of pedestal top of interior plinth, and its outer wall is divided into the 4th axle journal above by boundary of bulge loop（2552）With
Following third axle journal（2553）；First nipple（255）Further include being located at the 4th axle journal（2552）Outside an interior upper end for top
Screw thread（2556）, be located at an interior upper external screw thread（2556）5th axle journal of top（2557）, be located at third axle journal（2553）Position
A lower end internal thread in（2551）And with inscribed headstock（250）The interior annular groove that is equipped with of the opposite outer wall of pedestal
（25521）；Wherein,
Quick female connector（256）Including female body（2563）, female locking nut（2561）, seat under female（2562）, female valve
Bar（2565）, female lasso（2564）, female spring（2566）, female valve pocket（2569）, female gland（2567）, joint sealing
Pad（777）, connector O-ring（778）, a female gasket（557）, a female O-ring（558）, female two gaskets（667）, mother it is two O-shaped
Circle（668）With female rubber cushion（2568）；Female body（2563）Including multiple female oilholes across its ontology（25637）, be located at
Screw thread in female above its collar（25631）, screw thread under female below collar（25634）, axle journal under female（25633）、
Female lower end counterbore（25636）With female through-hole（25635）, further include annular groove in the female being located on the upper and lower axle journal of female
（25638）With annular groove under female（25632）；Seat under female（2562）It include the spiral shell in female inner seat of the upper and lower end of its endoporus
Line（25621）With female inner seat annular groove（25622）；Female valve rod（2565）Including bar screw thread at its upper end（25651）, under
The bar groove of end（25652）With valve rod male cone (strobilus masculinus)（25653）；Female valve pocket（2569）It include the set groove positioned at its outer wall
（25691）, set in counterbore（25692）With the set inner conical surface of lower end（25693）；
It is characterized in that：
Two groups of fluid pressure lines（27,27 '）Respectively by connected pipes（26）, coupling assembly connected with nipple assembly and
At the connected pipes（26）Upper end pass through pipe fitting（261）It is installed in the first coupling（245）Outer lower end counterbore
（2454）, lower end is set in the first nipple（255）The 5th axle journal（2557）On；
The external headstock（240）The scalariform counterbore bottom of the male fittings body from external hollow drill pipe is installed in by its flange
Portion；
Two groups of fluid pressure lines（27,27 '）Coupling assembly pass through the first coupling（245）The second axle journal（2452）
It is inserted into the external headstock respectively（240）In two symmetrical first sockets（2401,2401 '）An afterwards and outside annular groove
（24521）First O-ring is inside installed respectively（55）, pass through first locking nut respectively（247）It is screwed in the first coupling
（245）Outer lower end external screw thread（2456）By the first coupling after upper（245）It is fixed on external headstock（240）Pedestal on；
The quick pin end（246）Pass through its male connector body（2461）Male connector external screw thread（24614）It is screwed in the first coupling
（245）Upper end internal thread（2451）It is interior, the male connector body（2461）Male connector wall annular groove（24613）Interior setting joint sealing pad
（777）With connector O-ring（778）；
The quick pin end（246）Male connector spool（2469）It is placed in male connector body（2461）Male connector through-hole（24615）It is upper
End, the spool male cone (strobilus masculinus) on head（24691）With male connector inner conical surface（24616）It is fitted close；The male connector spool（2469）
The spool shaft shoulder（24692）Place's installation male connector rubber cushion（2468）；The male connector gland（2467）It is set in male connector spool（2469）
Valve core rod（24693）Upper end；The male connector spring（2466）It is installed on male connector gland（2467）Public gland outer journal
（24672）, male connector spool（2469）Valve core rod（24693）With male connector spring base（2462）Upper end blowout patche（24622）It is outer
On circumferential surface, and it is located at male connector gland（2467）With male connector spring base（2462）Between；The male connector spring base（2462）It is placed in public affairs
Head body（2461）Male connector through-hole（24615）It is interior, the male connector baffle ring（555）It is installed on male connector body（2461）Male connector groove
（24618）It is interior；
The inscribed headstock（250）The scalariform that socket in the female connector from external hollow drill pipe is installed in by its flange is heavy
Hole bottom；
Two groups of fluid pressure lines（27,27 '）Nipple assembly pass through the first nipple（255）The 4th axle journal（2552）
It is inserted into the inscribed headstock respectively（250）In two symmetrical second sockets（2501,2501 '）An afterwards and inside annular groove
（25521）First O-ring is inside installed respectively（55）, pass through second locking nut respectively（257）It is screwed in the first nipple
（255）An interior upper external screw thread（2556）By the first nipple after upper（255）It is fixed on inscribed headstock（250）Pedestal on；
The quick female connector（256）Pass through its female body（2563）Female on screw thread（25631）It is screwed in the first nipple
（255）Lower end internal thread（2551）It is interior；The female body（2563）Female on annular groove（25638）Interior setting joint sealing pad
（777）With connector O-ring（778）；Seat under the female（2562）Pass through its female inner seat internal thread（25621）It is tightened against female body
（2563）Female under screw thread（25634）On, female body（2563）Female under annular groove（25632）The female gasket of setting
（557）, a female O-ring（558）；
The female lasso（2564）In suit female spring（2566）It is placed on female body（2563）Female lower end counterbore
（25636）With female valve pocket（2569）Set in counterbore（25692）Between；The female valve pocket（2569）It is placed in seat under female
（2562）Endoporus in, female valve pocket（2569）Set groove on outer wall（25691）The female gasket of interior installation（557）, one O of mother
Type circle（558）, seat under the female（2562）Endoporus lower end female inner seat annular groove（25622）Female two O-rings of installation（668）With
Female rubber cushion（2568）；The female valve rod（2565）Valve rod male cone (strobilus masculinus)（25653）With female valve pocket（2569）The set of lower end
Inner conical surface（25693）It is fitted close；
The female valve rod（2565）In its lower end journal and bar groove（25652）Place's suit female gland（2567）With female glue
Pad（2568）Female lasso is passed through afterwards（2564）With female body（2563）Central through hole, pass through the female locking nut
（2561）It is tightened against female valve rod（2565）Bar screw thread（25651）It is locked；
The quick pin end（246）Male connector spool（2469）With male connector gland（2467）In male connector body（2461）Male connector it is logical
Hole（24615）Interior displacement E, the quick female connector（256）Female valve pocket（2569）The seat under female（2562）Endoporus
In displacement F, wherein the displacement difference of the quick relatively rapid female connector of pin end is E-F=0.20~0.50mm；
The positioning plate（29）It is packed in two groups of fluid pressure lines respectively（27,27 '）Coupling assembly in two it is first external
Head（245）With two the first nipples in nipple assembly（255）Between.
2. core pipe and its splice combinations built in drilling rod according to claim 1, it is characterised in that two fluid pressure lines
（27,27 '）Longitudinal center line relative to external headstock（240）With inscribed headstock（250）Flange excircle parallelism tolerance
It is required that being 0.08-0.10mm.
3. core pipe and its splice combinations built in drilling rod according to claim 1, it is characterised in that the quick pin end
（246）Male connector spool（2469）The spool male cone (strobilus masculinus) on head（24691）Angle and quick female connector（256）Female valve rod
（2565）The valve rod male cone (strobilus masculinus) on head（25653）Angle is β 1, the quick pin end（246）Male connector body（2461）Public affairs
Head inner conical surface（24616）Angle and quick female connector（256）Female valve pocket（2569）The set inner conical surface of lower end（25693）Angle
It is β 2, their numerical value is between 58 °~63 °, wherein the differential seat angle that they allow is 1=0.015 °~0.025 ° of β 2- β.
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| CN201810424782.XA CN108487867B (en) | 2018-05-07 | 2018-05-07 | Built-in core pipe of drill rod and joint combination thereof |
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|---|---|---|---|
| CN201810424782.XA CN108487867B (en) | 2018-05-07 | 2018-05-07 | Built-in core pipe of drill rod and joint combination thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025844A (en) * | 2018-10-09 | 2018-12-18 | 尚贤菊 | The drilling rod connection structure of pile-driving machine |
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2018
- 2018-05-07 CN CN201810424782.XA patent/CN108487867B/en active Active
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| EP0094509A2 (en) * | 1982-05-19 | 1983-11-23 | Kenneth J. Carstensen | Coupling for tubing or casing and method of assembly |
| US20070199718A1 (en) * | 2004-06-22 | 2007-08-30 | Boyd Anthony R | Entry swivel apparatus and method |
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| CN109025844A (en) * | 2018-10-09 | 2018-12-18 | 尚贤菊 | The drilling rod connection structure of pile-driving machine |
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| CN108487867B (en) | 2023-07-21 |
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