CN106812136B - Pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring - Google Patents
Pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring Download PDFInfo
- Publication number
- CN106812136B CN106812136B CN201710121357.9A CN201710121357A CN106812136B CN 106812136 B CN106812136 B CN 106812136B CN 201710121357 A CN201710121357 A CN 201710121357A CN 106812136 B CN106812136 B CN 106812136B
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- inner sleeve
- machined
- slip casting
- drilling rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- 238000003756 stirring Methods 0.000 title claims abstract description 21
- 238000013019 agitation Methods 0.000 title claims abstract description 16
- 238000007569 slipcasting Methods 0.000 claims abstract description 54
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses pressure injection diameter changeable agitation drilling rod heads in a kind of two-way stirring, the drilling rod head includes the drill bushing that can be connected with drilling rod and is mounted on drill bushing front end and is machined with the drill bit in slip casting duct, inner sleeve is fitted in drill bushing, sliding is equipped with piston in the cunning chamber of inner sleeve, Piston Machining has the axial slip casting channel for making spray be delivered to slip casting duct with slurry, the outer peripheral surface circumferential direction of piston is machined with one of slip casting conduit, and the medium radian of slip casting conduit is machined at least two radial communication holes for radial communication slip casting conduit and slip casting channel；The outer peripheral surface of inner sleeve is provided with the nozzle mounting hole of the sliding chamber of multiple radial communication inner sleeves, and the nozzle for spraying slurry is mounted on each nozzle mounting hole；Each nozzle is corresponded on drill bushing is equipped with the location hole that nozzle can be made to pass through so as to injection；Drilling rod head controls the opening and closing of respective nozzle by slide displacement of the piston in the sliding chamber of inner sleeve, realizes the whirl spraying injection of slurry different directions and height.
Description
Technical field
The present invention relates to a kind of drilling rod heads, a kind of variable diameter stirring especially applied in building yard Soft Ground
Stake drilling rod head, pressure injection diameter changeable agitation drilling rod head in specifically a kind of two-way stirring.
Background technique
Two-way stirring uses concentric double-shaft drilling rod, and interior drilling rod rotates in the forward direction blade, and outer drilling rod reversely rotates blade, while double
To stirring concrete earth.
Applied to the drilling rod head of two-way stirring diameter changeable agitation, usually structure is complicated in the prior art, and cannot change spray
Blade angle degree, therefore it is unfavorable for the uniform mixing of pile foundation.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above-mentioned state of the art, and provide have it is simple for structure,
Design is reasonable, can adjust pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring of whitewashing angle as needed.
The technical scheme of the invention to solve the technical problem is: pressure injection variable diameter stirring in a kind of two-way stirring
Stake drilling rod head, the drilling rod head include the drill bushing that can be connected with drilling rod and the front end for being fixedly mounted on drill bushing and are axially machined with note
The drill bit in duct is starched, positioning is fitted with inner sleeve in drill bushing, can slidably be equipped with piston in the cunning chamber of the inner sleeve, Piston Machining has
Spray is set to be delivered to the axial slip casting channel in slip casting duct with slurry, and the outer peripheral surface circumferential direction of the piston is machined with one of slip casting
Conduit, the medium radian of slip casting conduit are machined at least two radial communications for radial communication slip casting conduit and slip casting channel
Hole；The outer peripheral surface of inner sleeve is provided with the nozzle mounting hole of the sliding chamber of multiple radial communication inner sleeves, is mounted on each nozzle mounting hole
For spraying the nozzle of slurry；Each nozzle is corresponded on drill bushing is equipped with the location hole that nozzle can be made to pass through so as to injection；Drilling rod
Head controls the opening and closing of respective nozzle by slide displacement of the piston in the sliding chamber of inner sleeve, realizes the rotation of slurry different directions and height
Spray is penetrated.
To optimize above-mentioned technical proposal, the measure taken further include:
The outer peripheral surface of above-mentioned inner sleeve is opened altogether there are four nozzle mounting hole, and four nozzle mounting holes include two at a distance of 180
The lower nozzle mounting hole and two top nozzle mounting holes at a distance of 180 degree setting of setting are spent, each nozzle mounting hole is machined with
The internal screw thread being connect with nozzle spiral.
It is located at limit annular table of the front end equipped with piston motion to lower dead center in the sliding chamber of above-mentioned inner sleeve, and in the cunning chamber
The first seal groove for installing the first O-ring is machined between top nozzle mounting hole and lower nozzle mounting hole, inner sleeve is being located at
Twice are machined on the outer peripheral surface of front end for installing the second seal groove of the second O-ring, the inner sleeve is in the periphery for being located at rear end
Equal radians are machined with spline on face, are machined on the outer peripheral surface of inner sleeve between top nozzle mounting hole and lower nozzle mounting hole
Annular convex platform.
Above-mentioned nozzle include with drill bit slip casting duct in 90 degree angles to periphery spray slurry 90 degree of nozzles and with brill
Spray 45 degree of nozzles of slurry diagonally downward in 45 degree of angles in head slip casting duct；90 degree of nozzles are equipped with 90 degree of connector groups by spherojoint
At；45 degree of nozzles are equipped with 45 degree of connectors by spherojoint and form.
Above-mentioned spherojoint is machined with the external screw thread that cooperation is connect with the internal screw thread of nozzle mounting hole, which connects
It connects and is mounted on nozzle mounting hole, 90 degree of connectors and 45 degree of connectors are pressed abd fixed on spherojoint through coupling, and coupling adds
Work has the collet threaded with the location hole threaded engagement of drill bushing.
Above-mentioned drill bushing, which is axially sequentially communicated, is machined with three step connecting holes, inner sleeve pilot hole and drill bit step pilot hole；
Inner sleeve location and installation is formed in set pilot hole, and between inner sleeve pilot hole and the connection of drill bit step pilot hole inside and inner sleeve
The positioning annular table of front end annular surface location fit is machined with jump-ring slot in inner sleeve pilot hole, be installed in the jump-ring slot with it is interior
The rear end annular surface limit cooperation of set prevents the circlip of inner sleeve axial motion.
Be machined with drill bit connection screw thread in above-mentioned drill bit step pilot hole, drill bit thread is connected and fixed be mounted on drill bushing before
In the drill bit step pilot hole at end, drilling rod connection screw thread is machined in three step connecting holes.
On the processing of slip casting conduit medium radian there are four the radial communication holes of radial communication slip casting conduit and slip casting channel；
Adjacent two radial communication hole is at a distance of 90 degree.
Compared with prior art, pressure injection diameter changeable agitation drilling rod head, the drilling rod head in a kind of two-way stirring of the invention
It can not only spray downwards slurry by the slip casting duct of drill bit, and the nozzle of radially installed jetting slurry around can also be passed through
Expect, the piston that can be slided up and down is installed in the inner sleeve of drilling rod head especially of the present invention, makes drilling rod head during rotation
The whirl spraying injection of slurry different directions and height is realized by slide displacement of the piston in inner sleeve.Nozzle of the invention includes 45
Nozzle and 90 degree of nozzles are spent, therefore can guarantee that slip casting is more uniform.The configuration of the present invention is simple can adjust whitewashing angle as needed
Degree, meets the prefabricated needs of Soft Ground pile foundation.
Detailed description of the invention
Fig. 1 is the dimensional decomposition structure diagram of the embodiment of the present invention；
Fig. 2 is one of working state figure of the present invention；
Fig. 3 is the two of working state figure of the present invention；
Fig. 4 is the three of working state figure of the present invention；
Fig. 5 is the facing structure figure of piston in Fig. 1；
Fig. 6 is the cross-sectional view of Fig. 5；
Fig. 7 is the right view of Fig. 5；
Fig. 8 is the front view of inner sleeve in Fig. 1；
Fig. 9 is the cross-sectional view of Fig. 8；
The left view that Figure 10 is 8；
Figure 11 is the cross-sectional view of drill bushing in Fig. 1；
Figure 12 is the schematic perspective view of spherojoint in Fig. 1；
Figure 13 is the cross-sectional view of Figure 12；
Figure 14 is the schematic perspective view of 45 degree of connectors in Fig. 1；
Figure 15 is the cross-sectional view of Figure 14；
Figure 16 is the front view of coupling in Fig. 1；
Figure 17 is the cross-sectional view of Figure 16.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 to Figure 17 is the structural schematic diagram of the embodiment of the present invention.
Appended drawing reference therein are as follows: drill bit connection screw thread A, drilling rod connection screw thread B, location hole K, drill bushing 1, the connection of three steps
Hole 1a, inner sleeve pilot hole 1b, drill bit step pilot hole 1c, positioning annular table 1d, jump-ring slot 1e, piston 2, slip casting channel 2a, note
Stock tank road 2b, radial communication hole 2c, drill bit 3, slip casting duct 3a, inner sleeve 4, sliding chamber 4a, limit annular table 4b, the first seal groove
4c, the second seal groove 4d, spline 4e, annular convex platform 4f, lower nozzle mounting hole 5, top nozzle mounting hole 6, internal screw thread 6a, ball connect
First 71, external screw thread 71a, runner 71b, orbicule 71c, 90 degree of connectors, 72,45 degree of connectors 73, ball-and-socket 73a, 45 degree of oblique spray orifice 73b,
Coupling 8, collet threaded 8a, the first O-ring 91, the second O-ring 92.
It is described the invention discloses pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring as shown in Fig. 1 to Figure 17
Drilling rod head include the drill bushing 1 that can be connected with drilling rod and the front end for being fixedly mounted on drill bushing 1 and the axial slip casting duct that is machined with
The drill bit 3 of 3a, drill bit 3 can pass through the internal penetrating slip casting duct 3a being formed with by the pulp jets of spray into drilling, this hair
The bright positioning in the alloy steel bushing that drill bushing 1 is hollow structure, drill bushing 1 is fitted with inner sleeve 4, can be up and down in the cunning chamber 4a of the inner sleeve 4
Slidably it is equipped with piston 2.Piston 2 is machined with the axial slip casting channel 2a for making spray be delivered to slip casting duct 3a with slurry, and
And the outer peripheral surface circumferential direction of the piston 2 is machined with one of medium radian of slip casting conduit 2b, slip casting conduit 2b and is machined at least two use
In the radial communication hole 2c of radial communication slip casting conduit 2b and slip casting channel 2a；The outer peripheral surface of inner sleeve 4 is provided with multiple radial communications
Inner sleeve 4 slides the nozzle mounting hole of chamber 4a, and the nozzle for spraying slurry is mounted on each nozzle mounting hole；It is right on drill bushing 1
Each nozzle is answered to be equipped with the location hole K that nozzle can be made to pass through so as to injection；The slurry of spray passes through radial communication hole 2c energy
It enters in slip casting conduit 2b, then is sprayed by nozzle.During drilling rod drives the rotation of drilling rod head, drilling rod head passes through piston
2 slide displacement in the sliding chamber 4a of inner sleeve 4 makes to be arranged in nozzle and slip casting channel 2a company in inner sleeve 4 on different height and direction
Logical or blocking, i.e., control the opening and closing of respective nozzle by the slide displacement of piston 2, realizes slurry at different directions and height
Whirl spraying injection, to guarantee uniformity of the slurry in foot of hole enlarged.
To advanced optimize the present invention, in embodiment, the outer peripheral surface of inner sleeve 4 opens that there are four nozzle mounting hole, four sprays altogether
Mouth mounting hole includes the two lower nozzle mounting holes 5 and two top nozzle mounting holes at a distance of 180 degree setting at a distance of 180 degree setting
6, each nozzle mounting hole is machined with the internal screw thread 6a connecting with nozzle spiral.Being machined with internal screw thread 6a can be such that nozzle passes through
Spiral is mounted on nozzle mounting hole, and installation in this way is i.e. convenient and quick.
In embodiment, it is located at front end in the sliding chamber 4a of inner sleeve 4 and is equipped with the limit annular table 4b that piston 2 moves to lower dead center, and
And it is machined between top nozzle mounting hole 6 and lower nozzle mounting hole 5 in cunning chamber 4a first close for installing the first O-ring 91
Sealing groove 4c, inner sleeve 4 are machined with the second seal groove 4d that twice are used to install the second O-ring 92 on the outer peripheral surface for being located at front end,
The inner sleeve 4 waits radians to be machined with spline 4e on the outer peripheral surface for being located at rear end, is being located at top nozzle peace on the outer peripheral surface of inner sleeve 4
Annular convex platform 4f is machined between dress hole 6 and lower nozzle mounting hole 5.First O-ring 91 and the second O-ring 92 have been that sealing is made
With.Spline 4e is set in inner sleeve 4, is provided in drill bushing 1 and is adapted the spline for preventing inner sleeve 4 from circumferentially rotating with spline 4e
Tooth.
In embodiment, nozzle includes 90 degree of sprays with 3 slip casting duct 3a of drill bit in 90 degree of at an angles to periphery injection slurry
Mouth and 45 degree of nozzles for obliquely spraying slurry downwards in 45 degree of angles with 3 slip casting duct 3a of drill bit；The present invention is described herein
90 degree of nozzles be that the nozzle that 90 degree of connectors 72 form is equipped with by spherojoint 71；45 degree of nozzles are then to be equipped with 45 by spherojoint 71
Spend the nozzle that connector 73 forms.Upper and lower nozzle in downward or above said top nozzle mounting hole 6 described in the present invention
Under in mounting hole 5, state when drill bit is downward when each meaning drilling, and the front end or rear end that the present invention is described above,
Refer to the direction that drill bit is directed toward when drilling rod is laid flat.As shown in figure 3,90 degree of nozzles of the invention are mounted on lower nozzle mounting hole 5,45
Degree nozzle is mounted on top nozzle mounting hole 6.Certainly the present invention can also exchange installation.
Spherojoint 71 of the invention is formed with slip casting runner 71b along axle center perforation, the cylindrical rod section of spherojoint 71 be machined with
The external screw thread 71a of the internal screw thread 6a connection cooperation of nozzle mounting hole, head are formed with orbicule 71c, the connection of 71 spiral of spherojoint
It is mounted on nozzle mounting hole, which is pressed abd fixed on the ball of spherojoint 71 through coupling 8
On shape body 71c, coupling 8 is machined with the collet threaded 8a with the location hole K threaded engagement of drill bushing 1.45 degree of connectors 73 and 90 degree
72 contour structures of connector are identical, they are machined with the ball-and-socket 73a hinged with orbicule 71c, only 45 degree of inclinations of connector 73 45
Degree is machined with 45 degree of oblique spray orifice 73b of connection ball-and-socket 73a, and 90 degree of connectors 72 are then formed with the straight hole of axial connection ball-and-socket 73a.This hair
The bright cooperation by orbicule 71c and ball-and-socket 73a is able to achieve the multi-angle automatic adjustment of nozzle.
In embodiment, axial be sequentially communicated of drill bushing 1 is machined with three step connecting hole 1a, inner sleeve pilot hole 1b and drill bit step
Pilot hole 1c；4 location and installation of inner sleeve covers in pilot hole 1b inside, and the company of inner sleeve pilot hole 1b and drill bit step pilot hole 1c
It is formed with the positioning annular table 1d with 4 front end annular surface location fit of inner sleeve between logical, is machined with jump-ring slot in inner sleeve pilot hole 1b
The circlip that 4 axial motion of inner sleeve is prevented with the limit cooperation of the rear end annular surface of inner sleeve 4 is installed in 1e, jump-ring slot 1e.
In embodiment, drill bit connection screw thread A is machined in drill bit step pilot hole 1c, drill bit 3, which is threadedly coupled, to be fixedly mounted
In the drill bit step pilot hole 1c of 1 front end of drill bushing, drilling rod connection screw thread B is machined in three step connecting hole 1a.
There are four the radial communications of radial communication slip casting conduit 2b and slip casting channel 2a for the medium radian processing of slip casting conduit 2b
Hole 2c；Adjacent two radial communication hole 2c is at a distance of 90 degree.
The present invention during use, as shown in Fig. 2, the slurry of spray passes through work when piston 2 is in raw bits
The slip casting channel 2a of plug 2, then the slip casting duct 3a through drill bit 3 spray.Due to the diameter of the slip casting duct 3a of drill bit 3 of the invention
Less than the diameter of slip casting channel 2a, as shown in figure 3, blocking note by the way that sealing block is arranged when piston 2 is similarly in raw bits
Starch duct 3a, 90 degree of nozzles spray that the slurry of spray at this time then passes through slip casting channel 2a and is mounted on lower nozzle mounting hole 5
Out, as shown in figure 4, when piston 2 moves downwardly to bottom dead centre, the slurry of spray can be directly from the cunning chamber 4a of inner sleeve 4 through pacifying
45 degree of nozzles on top nozzle mounting hole 6 spray.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (8)
1. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring, which includes the drill bushing (1) that can be connected with drilling rod
And be fixedly mounted on the front end of drill bushing (1) and be axially machined with the drill bit (3) of slip casting duct (3a), it is characterized in that: described
Positioning is fitted with inner sleeve (4) in drill bushing (1), can slidably be equipped with piston (2) in the cunning chamber (4a) of the inner sleeve (4), described
Piston (2) is machined with the axial slip casting channel (2a) for making spray be delivered to slip casting duct (3a) with slurry, and the piston (2)
Outer peripheral surface circumferential direction is machined with one of slip casting conduit (2b), and described slip casting conduit (2b) the medium radian is machined at least two and is used for
The radial communication hole (2c) of radial communication slip casting conduit (2b) and slip casting channel (2a)；The outer peripheral surface of the inner sleeve (4) is provided with
The nozzle mounting hole of multiple radial communication inner sleeves (4) sliding chamber (4a) is each mounted on the nozzle mounting hole for spraying
Penetrate the nozzle of slurry；Each nozzle is corresponded on the drill bushing (1) is equipped with the location hole that nozzle can be made to pass through so as to injection
(K)；The drilling rod head controls the opening and closing of respective nozzle by the slide displacement of piston (2) in inner sleeve (4) sliding chamber (4a), real
The whirl spraying injection of existing slurry different directions and height.
2. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 1, it is characterized in that: described
The outer peripheral surface of inner sleeve (4) is opened altogether there are four nozzle mounting hole, and nozzle mounting hole described in four includes two and is arranged at a distance of 180 degree
Lower nozzle mounting hole (5) and two top nozzle mounting holes (6) at a distance of 180 degree setting, the nozzle mounting hole it is equal
It is machined with the internal screw thread (6a) connecting with nozzle spiral.
3. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 2, it is characterized in that: described
It is located at front end in inner sleeve (4) sliding chamber (4a) and is equipped with the limit annular table (4b) that piston (2) move to lower dead center, and the cunning chamber
It is machined between top nozzle mounting hole (6) and lower nozzle mounting hole (5) in (4a) for installing the first close of the first O-ring (91)
Sealing groove (4c), the inner sleeve (4) are machined with twice for installing the of the second O-ring (92) on the outer peripheral surface for being located at front end
Two seal grooves (4d), the inner sleeve (4) wait radians to be machined with spline (4e) on the outer peripheral surface for being located at rear end, the inner sleeve
(4) annular convex platform (4f) is being machined between top nozzle mounting hole (6) and lower nozzle mounting hole (5) on outer peripheral surface.
4. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 3, it is characterized in that: described
Nozzle includes infusing with drill bit (3) slip casting duct (3a) in 90 degree of angles to 90 degree of nozzles of periphery injection slurry and with drill bit (3)
Slurry duct (3a) sprays 45 degree of nozzles of slurry in 45 degree of angles diagonally downward；90 degree of nozzles are equipped with by spherojoint (71)
90 degree of connector (72) compositions；45 degree of nozzles are equipped with 45 degree of connectors (73) by spherojoint (71) and form.
5. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 4, it is characterized in that: described
Spherojoint (71) is machined with the external screw thread (71a) that cooperation is connect with the internal screw thread of nozzle mounting hole (6a), spherojoint (71) spiral shell
Rotation connection is mounted on nozzle mounting hole, and 90 degree of connectors (72) and 45 degree of connectors (73) compress admittedly through coupling (8)
It is scheduled on spherojoint (71), the coupling (8) is machined with and the collet threaded of location hole (K) threaded engagement of drill bushing (1)
(8a)。
6. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 2, it is characterized in that: described
Drill bushing (1) is axially sequentially communicated and is machined with three step connecting holes (1a), inner sleeve pilot hole (1b) and drill bit step pilot hole (1c)；
Described inner sleeve (4) location and installation covers in pilot hole (1b) inside, and inner sleeve pilot hole (1b) and drill bit step pilot hole
It is formed between (1c) and the positioning annular table (1d) of inner sleeve (4) front end annular surface location fit, the inner sleeve pilot hole (1b)
In be machined with jump-ring slot (1e), be installed in the jump-ring slot (1e) with the rear end annular surface of inner sleeve (4) limit cooperation prevent inner sleeve
(4) circlip of axial motion.
7. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 6, it is characterized in that: described
It is machined in drill bit step pilot hole (1c) drill bit connection screw thread (A), the drill bit (3) threaded connection is fixedly mounted on drill bushing
(1) in the drill bit step pilot hole (1c) of front end, drilling rod connection screw thread (B) is machined in the three step connecting holes (1a).
8. pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring according to claim 7, it is characterized in that: described
There are four the radial communication holes of radial communication slip casting conduit (2b) and slip casting channel (2a) for the medium radian processing of slip casting conduit (2b)
(2c)；Adjacent two radial communication hole (2c) is at a distance of 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121357.9A CN106812136B (en) | 2017-03-02 | 2017-03-02 | Pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121357.9A CN106812136B (en) | 2017-03-02 | 2017-03-02 | Pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812136A CN106812136A (en) | 2017-06-09 |
| CN106812136B true CN106812136B (en) | 2019-01-22 |
Family
ID=59114639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710121357.9A Active CN106812136B (en) | 2017-03-02 | 2017-03-02 | Pressure injection diameter changeable agitation drilling rod head in a kind of two-way stirring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812136B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309046A (en) * | 2021-12-24 | 2022-04-12 | 广州园林建筑规划设计研究总院有限公司 | Spout device soon suitable for shallow bottom in lawn |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172889A (en) * | 1997-05-13 | 1998-02-11 | 谭振威 | Rotating high-pressure injection slip casting single-pipe double-injection drill |
| EP1297242B1 (en) * | 2000-06-28 | 2008-04-09 | Weatherford/Lamb Inc. | Drill bits |
| CN201180497Y (en) * | 2008-04-10 | 2009-01-14 | 中国京冶工程技术有限公司 | Single tube all-directional drilling injection slip casting drilling bit of auxiliary slip casting hole capable of hydraulic controlling open-and-close |
-
2017
- 2017-03-02 CN CN201710121357.9A patent/CN106812136B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172889A (en) * | 1997-05-13 | 1998-02-11 | 谭振威 | Rotating high-pressure injection slip casting single-pipe double-injection drill |
| EP1297242B1 (en) * | 2000-06-28 | 2008-04-09 | Weatherford/Lamb Inc. | Drill bits |
| CN201180497Y (en) * | 2008-04-10 | 2009-01-14 | 中国京冶工程技术有限公司 | Single tube all-directional drilling injection slip casting drilling bit of auxiliary slip casting hole capable of hydraulic controlling open-and-close |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106812136A (en) | 2017-06-09 |
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