CN104088589B - Drilling tool and rotary drilling rig - Google Patents
Drilling tool and rotary drilling rig Download PDFInfo
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- CN104088589B CN104088589B CN201410309513.0A CN201410309513A CN104088589B CN 104088589 B CN104088589 B CN 104088589B CN 201410309513 A CN201410309513 A CN 201410309513A CN 104088589 B CN104088589 B CN 104088589B
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Abstract
The invention discloses a kind of drilling tool and rotary drilling rig.Above-mentioned drilling tool includes: interior drilling tool, and is sheathed on the outer drilling tool that described interior drilling tool is peripheral；The bottom of described interior drilling tool is provided with interior drill bit, and the bottom of described outer drilling tool is provided with outer drill bit；Described interior drilling tool top is provided with the first torque transmission mechanism for being connected with drilling rod；It is connected by the second torque transmission mechanism between described interior drilling tool and described outer drilling tool.On the one hand the outer drilling tool of above-mentioned drilling tool plays the effect of retaining wall；On the other hand can externally cut soil layer or stone bottom drilling tool, to ensure in hardpan drilling process, the outer drilling tool interior drilling tool that can follow up all the time is buried underground, and then reduces the probability of the accidents such as landslide, it is also possible to raising production efficiency.
Description
Technical field
The present invention relates to engineering machinery field, particularly to a kind of drilling tool and rotary drilling rig.
Background technology
Rotary drilling rig is a kind of construction machinery of pore-forming operation in building foundation engineering, and it is primarily adapted for sand
The construction of the soil layers such as soil, cohesive soil, slity soil, at multiple grounds such as bored concrete pile, diaphragm wall, strengthenings of foundation
Extensive application in foundation construction.
Rotary drilling rig, when caving ground is constructed, generally uses the mode of pipe-following drilling to construct, so-called
Pipe-following drilling refers at the outer sheathed sleeve pipe of drill bit, boring when creeping into, and the most cased creeps into mode.
Use aforesaid way to play prevent landslide and improve the effect of efficiency of construction.
When casing part is the soft formation such as soil layer or layer of sand, use the mode drilling process of pipe-following drilling
In, sleeve pipe relies on pressure and moment of torsion, and the drilling tool that can follow up is buried underground；But, it is hard formation for its lower end portion
Or a part is in hole during the situation such as part stone outside hole, owing to the bit diameter in sleeve pipe is less than set
Bore, it is difficult to the stone in excision its lower end portion, the sleeve pipe drilling tool that cannot follow up is buried underground, also cannot play and protect
Wall effect, easily causes the accidents such as landslide.
Summary of the invention
In view of this, the present invention propose a kind of drilling tool hardpan also to preferable retaining wall effect and
Rotary drilling rig.For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
On the one hand, the invention provides a kind of drilling tool, including: interior drilling tool, and be sheathed on outside described interior drilling tool
The outer drilling tool enclosed；The bottom of described interior drilling tool is provided with interior drill bit, and the bottom of described outer drilling tool is provided with outer brill
Head；Described interior drilling tool top is provided with the first torque transmission mechanism for being connected with drilling rod；Described interior drilling tool and institute
State and be connected by the second torque transmission mechanism between outer drilling tool.
Further, described second torque transmission mechanism includes: be arranged at keyway or the key of described interior drilling tool, and
Relative set is in the key of described outer drilling tool or keyway.
Further, described interior drilling tool is provided with pressure torsion dish, and described pressure torsion dish offers keyway；Outside described
Drilling tool includes: is sheathed on the outer bit head outside described interior drilling tool, and is sheathed on the set outside described outer bit head
Cylinder portion；The bottom of described outer bit head is provided with described outer drill bit, and top is provided with suitable with described keyway
Key；Described outer bit head also includes the first axial limiting portion and the second axial limiting portion；Described sleeve part sets
It is equipped with the 3rd axial limiting portion between described first axial limiting portion and the second axial limiting portion.
Further, described outer bit head includes: outer tube；It is arranged at the upper projection on described outer tube top
Edge, and it is arranged at the lower convexity edge of described outer tube bottom；The top at described protruding edge is provided with
Described key, the bottom at described lower convexity edge is provided with described outer drill bit；Described protruding edge is formed described
First axial limiting portion, described lower convexity edge forms described second axial limiting portion.
Further, the external diameter of described outer drill bit is not less than the external diameter of described sleeve part.
Further, described 3rd limiting section is the boss to described sleeve part internal protrusion.
Further, described sleeve part includes: sleeve body and contiguous block, described contiguous block is provided with described
Boss；The outer wall of described sleeve body is provided with mounting groove, and described mounting groove offers installing hole；Described company
Connect block to be mounted in described mounting groove, and described boss is fed through described installing hole.
Further, the outer surface of described contiguous block and the flush with outer surface of described sleeve body.
Further, leave between described first axial limiting portion and described second axial limiting portion be available for described
The space that 3rd axial limiting portion moves axially and circumferentially rotates.
On the other hand, the present invention also provides for a kind of rotary drilling rig, is provided with the drilling tool described in above-mentioned any one.
The drilling tool that the present invention provides includes interior drilling tool and outer drilling tool.Wherein, interior drilling tool is used for being connected with drilling rod,
It it is main drilling mechanism.It is peripheral that outer drilling tool is sheathed on interior drilling tool, and is passed by moment of torsion by the second torque transmission mechanism
Pass outer drilling tool to make to be arranged at the outer drill bit bottom outer drilling tool and may be rotated cutting.The power of this drilling tool
Transmittance process is: drilling rod imparts power to interior drilling tool by the first torque transmission mechanism, the interior brill bottom interior drilling tool
Head carries out rotary cutting；In simultaneously, a part of power is passed to outer drilling tool also by the second torque transmission mechanism by drilling tool,
And then drive the stratum bottom the external drilling tool of outer drill bit bottom outer drilling tool to carry out circumgyration incision.Outer drilling tool
On the one hand the effect of retaining wall is played；On the other hand can externally cut soil layer or stone bottom drilling tool,
To ensure in hardpan drilling process, the outer drilling tool interior drilling tool that can follow up all the time is buried underground, and then reduces and collapse
The probability of the accidents such as side, it is also possible to improve production efficiency.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.At accompanying drawing
In:
The perspective view of the drilling tool that Fig. 1 provides for the embodiment of the present invention；
The cross-sectional view of the drilling tool that Fig. 2 provides for the embodiment of the present invention；
The perspective view of drilling tool in the drilling tool that Fig. 3 provides for the embodiment of the present invention；
The cross-sectional view of the drilling tool China and foreign countries drilling tool that Fig. 4 provides for the embodiment of the present invention；
The perspective view of the outer bit head of the drilling tool China and foreign countries drilling tool that Fig. 5 provides for the embodiment of the present invention；
The perspective view of the sleeve part of the drilling tool China and foreign countries drilling tool that Fig. 6 provides for the embodiment of the present invention；
The perspective view of the sleeve body of the drilling tool China and foreign countries drilling tool that Fig. 7 provides for the embodiment of the present invention；
The perspective view of the contiguous block of the drilling tool China and foreign countries drilling tool that Fig. 8 provides for the embodiment of the present invention.
Description of reference numerals:
Drilling tool in 1
In 11, drill bit 12 presses torsion dish
121 keyways 13 connect square toes
14 open base pressure bar 15 inner tube
4 outer drilling tools
2 outer bit head
21 outer tube 22 keys
Protruding edge on 23 outer drill bits 24
25 lower convexity edges
3 sleeve parts
30 sleeve body 31 mounting grooves
311 installing hole 32 contiguous blocks
33 boss
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment
Can be mutually combined.Below in conjunction with the accompanying drawings, each preferred embodiment of the present invention is described further.
Refer to Fig. 1 and Fig. 2, the figure shows the structure of the drilling tool that the embodiment of the present invention provides.This drilling tool
For a kind of drilling tool being applicable to pipe-following drilling, specifically include:
Interior drilling tool 1, and it is sheathed on the outer drilling tool 4 of this interior drilling tool 1 periphery；
The bottom of above-mentioned interior drilling tool 1 is provided with interior drill bit 11, and the bottom of outer drilling tool 4 is provided with outer drill bit 23；
Interior drilling tool 1 top is provided with the first torque transmission mechanism for being connected with drilling rod；
It is connected by the second torque transmission mechanism between interior drilling tool 1 and outer drilling tool 4.
The drilling tool that the present embodiment provides is made up of interior drilling tool 1 and these two parts of outer drilling tool 4.Interior drilling tool 1
For being connected with drilling rod, it it is main drilling mechanism.Outer drilling tool 4 is sheathed on the periphery of interior drilling tool 1, a side
Face, functions similarly to the effect of sleeve pipe of the prior art, i.e. plays the effect of retaining wall；On the other hand, should
It is provided with outer drill bit 23 bottom outer drilling tool 4, and outer drilling tool 4 can be by the second torque transmission mechanism by interior drilling tool 1
Driving and rotate, outer drill bit 23 can externally cut, with guarantee soil layer or stone bottom drilling tool 4
When hardpan creeps into, the outer drilling tool 4 interior drilling tool 1 that can follow up all the time is buried underground, and then reduces the things such as landslide
Therefore probability, also improve production efficiency.
The power transmission process of the drilling tool that the present embodiment provides is: power is passed by drilling rod by the first torque transmission mechanism
Passing interior drilling tool 1, the interior drill bit 11 bottom interior drilling tool 1 carries out rotary cutting；In simultaneously drilling tool 1 also by
A part of power is passed to outer drilling tool 4 by the second torque transmission mechanism, and then drives the outer drill bit bottom outer drilling tool 4
Stratum bottom 23 external drilling tools 4 carries out circumgyration incision.Above-mentioned first torque transmission mechanism can be connection side 13,
I.e. can use connection side's header structure that existing drilling tool is connected, the concrete structure of these connection square toes 13 with drilling rod
Can be same as the prior art, this is not repeated by the present invention.Above-mentioned second torque transmission mechanism can be bonded biography
Turn round mechanism.Specifically.This second torque transmission mechanism may include that keyway or the key being arranged at interior drilling tool 1,
And relative set is in the key of outer drilling tool 4 or keyway.For the ease of processing, refer to Fig. 3, interior drilling tool 1
Pressure torsion dish 12 can be provided with, this pressure torsion dish 12 offers keyway 121.Accordingly, outer drilling tool 4 is arranged
There is the key suitable with this keyway 121.Further, above-mentioned interior drilling tool 1 specifically can include inner tube
15, and it is arranged at the pressure torsion dish 12 of this inner tube 15 outer wall.The structure of inner tube 15 can be with existing brill
Lamps structure is identical, such as, drag for sand drilling bucket, embedding rock drilling pipe etc..Inner tube 15 can be provided with open base pressure bar 14
(referring to Fig. 2), in order to open the brill end, by the boring mud removal in inner tube 15.
Above-mentioned outer drilling tool 4 can be structure as a whole, it is also possible to for Split type structure.The outer drilling tool 4 of integrative-structure
I.e. in drilling process, whole outer drilling tool 4 all rotates with interior drilling tool 1, has an advantage in that simple in construction, just
In installation, but drilling through for deep hole, required outer drilling tool 4 is the longest, and weight is relatively big, the resistance of rotation
Power is the biggest, now according to integrative-structure, then needs interior drilling tool 1 to provide higher moment of torsion to export, energy consumption
Bigger.Thus, the present embodiment preferably employs the outer drilling tool 4 of Split type structure, the part in outer drilling tool 4
Realizing cutting along with interior drilling tool 1 rotates, another part does not rotates, energy efficient.Specifically, refer to
Fig. 4, this outer drilling tool 4 may include that
The outer bit head 2 (referring to Fig. 5) being sheathed on outside interior drilling tool 1；
And the sleeve part 3 (referring to Fig. 6) being sheathed on outside outer bit head 2；
The bottom of outer bit head 2 is provided with above-mentioned outer drill bit 23, and the top of outer bit head 2 is provided with above-mentioned
The key 22 that keyway 121 is suitable；
Outer bit head 2 also includes the first axial limiting portion and the second axial limiting portion；Sleeve part 3 is provided with position
The 3rd axial limiting portion between above-mentioned first axial limiting portion and the second axial limiting portion.Preferably, on
State to leave between the first axial limiting portion and the second axial limiting portion and be available for the 3rd axial limiting portion and move axially
With the space circumferentially rotated.
The outer drilling tool 4 of above-mentioned Split type structure includes the outer bit head 2 rotated with interior drilling tool 1, and not with interior
The sleeve part 3 that drilling tool 1 rotates.Above-mentioned sleeve part 3 primarily serves the effect of retaining wall, and outer bit head 2 rotates
Drive outer drill bit 23 to rotate cutting, play outer drilling tool 4 bottom solum of removing or the effect of stone.Thus, interior
Drilling tool 1 is without driving whole outer drilling tool 4 to rotate, but only that drive outer bit head 2 to rotate,
Achieve drilling tool 1 in outer drilling tool 4 follows up all the time in the case of ensureing relatively low energy consumption output to nuzzle.Drilling process
In, the supporting role upwards of the external bit head of soil layer 2, and the external drill bit of pressure torsion dish 12 of interior drilling tool 1
Portion 2 arranges the prone of key 22 and compresses effect so that key 22 can be always positioned in keyway 121.This
Outward, in order to prevent axial direction upper bush portion 3 to be separated with outer bit head 2, above-mentioned sleeve part 3 and outer brill
It is additionally provided with axial limiting mechanism between head 2, the most above-mentioned first axial limiting portion, second axially limits
Position portion and the 3rd axial limiting portion.After installation, the 3rd axial limiting portion of sleeve part 3 is positioned at outer bit head 2
The first axial limiting portion and the second axial limiting portion between so that outer bit head 2 and sleeve part 3 it
Between can have certain axial displacement, but the two will not be separated.Further, when pore-forming carries brill, set is extracted
Pipe portion 3 can be by outer bit head 2 together with taking out of.
Above-mentioned first axial limiting portion and the second axial limiting portion are specifically as follows ledge structure, further,
Referring to Fig. 5, above-mentioned outer bit head 2 specifically may include that
Outer tube 21；
It is arranged at the upper protruding edge 24 on outer tube 21 top, and is arranged at the lower convexity of outer tube 21 bottom
Edge 25；
The top at upper protruding edge 24 is provided with above-mentioned key 22, and the bottom at lower convexity edge 25 is provided with above-mentioned
Outer drill bit 23；
Upper protruding edge 24 forms above-mentioned first axial limiting portion, and lower convexity edge 25 forms above-mentioned second axle
To limiting section.
In the outer bit head 2 of said structure, it is preferably provided with the external diameter of outer drill bit 23 not less than outside sleeve part 3
Footpath, thereby guarantees that the soil layer below sleeve part 3 and stone all can be cut by outer drill bit 23.Above-mentioned outer drill bit
The external diameter of 23 refers to that some outer drill bits enclose the edge diameter of the shape being set as.Additionally, the outer drill bit of said structure
In portion 2, its first axial limiting portion and the second axial limiting portion are respectively by being arranged at outer tube 21 top and the end
Two lugs of end are along being formed, i.e. generally a kind of two ends of this outer bit head 2 are wider, and middle part is thinner
Structure.3rd axial limiting portion of sleeve part 3 is arranged between above-mentioned two lug edge.Bore additionally, outer
23 are disposed on lower convexity edge 25, therefore to adjust by adjusting the external diameter at lower convexity edge 25
Whole outer drill bit 23 scope is set.Preferably, the external diameter at lower convexity edge 25 is not less than sleeve part
The external diameter of 3, so that outer drill bit 23 has and sufficiently large arranges external diameter, to ensure the soil of sleeve part 3 bottom
Layer or stone can be cut by outer drill bit 23.
3rd axial limiting portion of sleeve part 3 can be the boss structure to sleeve part 3 internal protrusion.This is convex
Platform can be structure as a whole with sleeve part 3, it is also possible to for Split type structure.For the ease of outer bit head 2 and set
The installation in cylinder portion 3, also for being conveniently replaceable the boss damaged.Boss is preferably detachably arranged in set
In cylinder portion 3.Specifically, referring to Fig. 7 and Fig. 8, this sleeve part 3 includes: sleeve body 30 and company
Connect block 32, contiguous block 32 is provided with boss 33；
The outer wall of sleeve body 30 is provided with mounting groove 31, and mounting groove 31 offers installing hole 311；
Contiguous block 32 is mounted in above-mentioned mounting groove 31, and boss 33 is fed through installing hole 311.
I.e. in this case, boss 33 is disposed on contiguous block 32, and contiguous block 32 is mounted at set
The mounting groove 31 of cylinder 30 realizes the detachable installation of boss 33.During installation, boss 33 is fed through installation
Hole 311 forms above-mentioned 3rd axial limiting portion.Contiguous block 32 can be installed on sleeve by securing members such as screws
30.Further, in order to prevent too much boring mud to be piled up in mounting groove 31, or contiguous block 32 with bore
The collision that the hole wall in hole is too much, is preferably provided with the outer surface of above-mentioned contiguous block 32 and the outer surface of sleeve body 30
Concordant.
Additionally, in order to lower the friction in rotation process and between sleeve part 3 of the outer bit head 2, Ke Yishe
Put and leave gap between the boss 33 of sleeve part 3 and the outer wall of outer bit head 2；Or, boss 33 is set
The face contacted with outer bit head 2 is shiny surface, and/or sleeve part 3 be positioned at protruding edge 24 and under convex
The outer wall risen between edge 25 is shiny surface.Preferably leave between upper protruding edge 24 and lower convexity edge 25
It is available for the space that boss 33 moves axially and circumferentially rotates.
As shown in the above, the drilling tool that the embodiment of the present invention provides includes interior drilling tool and outer drilling tool.Wherein,
Interior drilling tool, for being connected with drilling rod, is main drilling mechanism.It is peripheral that outer drilling tool is sheathed on interior drilling tool, and leads to
Cross the second torque transmission mechanism to deliver torque to outer drilling tool and make to be arranged at the outer drill bit bottom outer drilling tool and can carry out
Rotate cutting.The power transmission process of this drilling tool is: in drilling rod is imparted power to by the first torque transmission mechanism
Drilling tool, the interior drill bit bottom interior drilling tool carries out rotary cutting；In simultaneously, drilling tool will also by the second torque transmission mechanism
A part of power passes to outer drilling tool, and then drives the stratum bottom the external drilling tool of outer drill bit bottom outer drilling tool
Carry out circumgyration incision.On the one hand outer drilling tool plays the effect of retaining wall；On the other hand can be externally at the bottom of drilling tool
Soil layer or the stone in portion cut, and to ensure in hardpan drilling process, outer drilling tool all the time can be with
Enter interior drilling tool to bury underground, and then reduce the probability of the accidents such as landslide, it is also possible to improve production efficiency.
The embodiment of the present invention additionally provides a kind of rotary drilling rig, and this rotary drilling rig is provided with any of the above-described kind of drilling tool,
Owing to any of the above-described kind of drilling tool has above-mentioned technique effect, therefore, the rotary drilling rig being provided with this drilling tool also should have
Standby corresponding technique effect, its specific implementation process is similar to the above embodiments, does not repeats.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (8)
1. a drilling tool, it is characterised in that including:
Interior drilling tool (1), and it is sheathed on the outer drilling tool (4) that described interior drilling tool (1) is peripheral；
The bottom of described interior drilling tool (1) is provided with interior drill bit (11), described outer drilling tool (4)
Bottom be provided with outer drill bit (23)；
Described interior drilling tool (1) top is provided with the first torque transmission mechanism for being connected with drilling rod；
It is connected by the second torque transmission mechanism between described interior drilling tool (1) and described outer drilling tool (4)；
Described second torque transmission mechanism includes: be arranged at the keyway of described interior drilling tool (1), and
Relative set is in the key of described outer drilling tool (4)；
Described interior drilling tool (1) is provided with pressure torsion dish (12), and described pressure torsion dish (12) is offered
There is keyway (121)；
Described outer drilling tool (4) including: is sheathed on described interior drilling tool (1) outer bit head (2) outward,
And it is sheathed on described outer bit head (2) sleeve part (3) outward；
The bottom of described outer bit head (2) is provided with described outer drill bit (23), and top is provided with
The key (22) suitable with described keyway (121)；
Described outer bit head (2) also includes the first axial limiting portion and the second axial limiting portion；
Described sleeve part (3) is provided with and is positioned at described first axial limiting portion and the second axial limiting portion
Between the 3rd axial limiting portion.
Drilling tool the most according to claim 1, it is characterised in that described outer bit head (2)
Including:
Outer tube (21)；
It is arranged at the upper protruding edge (24) on described outer tube (21) top, and is arranged at institute
State the lower convexity edge (25) of outer tube (21) bottom；
The top of described protruding edge (24) is provided with key (22), described lower convexity edge
(25) bottom is provided with described outer drill bit (23)；
Described protruding edge (24) forms described first axial limiting portion, described lower convexity limit
Described second axial limiting portion is formed along (25).
Drilling tool the most according to claim 2, it is characterised in that described outer drill bit (23)
External diameter not less than the external diameter of described sleeve part (3).
Drilling tool the most according to any one of claim 1 to 3, it is characterised in that institute
The 3rd axial limiting portion that states is the boss (33) to described sleeve part (3) internal protrusion.
Drilling tool the most according to claim 4, it is characterised in that described sleeve part (3)
Including: sleeve body (30) and contiguous block (32), described contiguous block (32) is upper have been arranged
State boss (33)；
The outer wall of described sleeve body (30) is provided with mounting groove (31), described mounting groove (31)
On offer installing hole (311)；
Described contiguous block (32) is mounted in described mounting groove (31), and described
Boss (33) is fed through described installing hole (311).
Drilling tool the most according to claim 5, it is characterised in that described contiguous block (32)
The flush with outer surface of outer surface and described sleeve body (30).
Drilling tool the most according to claim 1, it is characterised in that described first axially limits
Leave between position portion and described second axial limiting portion and be available for described 3rd axial limiting portion and make axle
To space that is mobile and that circumferentially rotate.
8. a rotary drilling rig, it is characterised in that be provided with claim 1 to 7 any one
Drilling tool described in Xiang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309513.0A CN104088589B (en) | 2014-07-01 | 2014-07-01 | Drilling tool and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410309513.0A CN104088589B (en) | 2014-07-01 | 2014-07-01 | Drilling tool and rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104088589A CN104088589A (en) | 2014-10-08 |
| CN104088589B true CN104088589B (en) | 2016-08-24 |
Family
ID=51636336
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410309513.0A Active CN104088589B (en) | 2014-07-01 | 2014-07-01 | Drilling tool and rotary drilling rig |
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| CN (1) | CN104088589B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639888A (en) * | 2016-10-25 | 2017-05-10 | 北京中车重工机械有限公司 | Rotary drilling rig and drilling bucket assembly thereof |
| CN111577121A (en) * | 2019-04-07 | 2020-08-25 | 江山显进机电科技服务有限公司 | Well drilling method |
| CN109989715B (en) * | 2019-05-17 | 2024-02-06 | 天明(南京)智能装备科技有限公司 | Drilling tool assembly of engineering driller |
| CN111794675B (en) * | 2020-07-14 | 2023-02-03 | 中铁十九局集团矿业投资有限公司 | Surface mine blasthole drilling equipment |
| CN111963062B (en) * | 2020-08-26 | 2022-09-16 | 浙江易通特种基础工程股份有限公司 | Drag bit for drilling ovum gravel layer during construction of height-limited space |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2082869C1 (en) * | 1992-10-16 | 1997-06-27 | Николай Петрович Пинчук | Drag drill bit |
| US6189630B1 (en) * | 1998-06-17 | 2001-02-20 | Beck, Iii August H. | Downhole hammer-type core barrel |
| CN101343982B (en) * | 2008-08-22 | 2011-06-15 | 北京市三一重机有限公司 | Double-layer barrel type drilling tool |
| CN201763243U (en) * | 2010-09-07 | 2011-03-16 | 李新桥 | Three-layer rock-socketed cylindrical drill for rotary drilling rig |
| CN202360030U (en) * | 2011-11-29 | 2012-08-01 | 北京市三一重机有限公司 | Drilling tool capable of rotatably digging soil containing crushed cobblestones |
| CN103628814A (en) * | 2012-08-23 | 2014-03-12 | 宜昌市五环钻机具有限责任公司 | Dual-purpose concentric pipe-along drilling tool |
| CN202850862U (en) * | 2012-08-24 | 2013-04-03 | 李兵 | Chambering and soil borrowing drill |
| CN203655291U (en) * | 2013-11-29 | 2014-06-18 | 北京市三一重机有限公司 | Cutting pick holder component and a cutting pick barrel drill |
| CN203655163U (en) * | 2013-12-17 | 2014-06-18 | 北京市三一重机有限公司 | Rotary drilling rig and variable diameter cylinder drill thereof |
| CN103867129B (en) * | 2014-02-27 | 2017-02-15 | 北京市三一重机有限公司 | Rotary drilling rig and drilling bucket thereof |
| CN204002599U (en) * | 2014-07-01 | 2014-12-10 | 北京市三一重机有限公司 | Drilling tool and rotary drilling rig |
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2014
- 2014-07-01 CN CN201410309513.0A patent/CN104088589B/en active Active
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