CN112127794A - Continuous rotary drilling device suitable for large-diameter casing pipe construction - Google Patents
Continuous rotary drilling device suitable for large-diameter casing pipe construction Download PDFInfo
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- CN112127794A CN112127794A CN202011170872.4A CN202011170872A CN112127794A CN 112127794 A CN112127794 A CN 112127794A CN 202011170872 A CN202011170872 A CN 202011170872A CN 112127794 A CN112127794 A CN 112127794A
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- continuous
- drilling device
- rotary
- device suitable
- oil cylinder
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- 238000005553 drilling Methods 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 239000010731 rolling oil Substances 0.000 claims abstract description 35
- 238000009785 tube rolling Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 31
- 230000008602 contraction Effects 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims 5
- 238000005520 cutting process Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/04—Rotary tables
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a continuous rotary drilling device suitable for large-diameter casing pipe construction, which comprises a continuous rotary mechanism, a lifting mechanism, a power mechanism and a control mechanism, wherein the continuous rotary mechanism is arranged on the continuous rotary drilling device; the continuous slewing mechanism comprises a slewing disc, a thrust block and a tube rolling oil cylinder, and a sleeve is inserted in the slewing disc; the lifting mechanism is arranged below the rotary disc and can lift and adjust the rotary disc. The continuous rotary drilling device provided by the invention generates downward pressure and torque during operation, drives the casing pipe to rotate, and performs cutting drilling on soil bodies, rock stratums and the like, and is mainly used for pile foundation engineering construction of large-diameter casing pipes. Compared with the small-angle rotation of the existing pipe rolling machine, the invention realizes the continuous rotation action of the rotating disc by utilizing the intermittent alternate work of the pipe rolling oil cylinder, thereby driving the sleeve to continuously rotate for 360 degrees and pressing and pulling the sleeve in and out, and has high drilling efficiency and strong practicability.
Description
Technical Field
The invention belongs to the field of engineering construction, relates to pile foundation construction equipment applicable to large-diameter casing pipes, and particularly relates to a continuous rotary drilling device applicable to large-diameter casing pipe construction.
Background
The full casing pipe method is one of pile foundation pore-forming methods, has the advantages of good pore-forming quality, high single pile bearing capacity, no slurry pollution in dry hole operation and the like, and is particularly suitable for pore-forming operation of geology such as quicksand, silt, underground rivers and the like. Therefore, the full casing process is increasingly applied.
At present, the construction equipment of the full casing method mostly adopts a pipe twisting drilling machine. The existing pipe twisting drilling machine has the characteristics of simple structure, convenient use, low price and the like. However, with the gradually rising requirements on the construction quality and the construction efficiency, the problems of small twisting angle and low drilling efficiency of the pipe twisting drilling machine in the construction process are gradually obvious, and the existing pipe twisting drilling machine cannot meet the continuous rotary drilling requirement of the large-diameter casing pipe.
Therefore, how to provide a continuous rotary drilling device suitable for large-diameter casing pipe construction is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a continuous rotary drilling device suitable for large-diameter casing pipe construction, which solves the problems of small rubbing angle and low drilling efficiency of a pipe rolling machine, can realize continuous rotary drilling of large-diameter casing pipes, and can press or lift the casing pipes in or out.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a continuous rotary drilling device suitable for large-diameter casing pipe construction, which mainly comprises:
the continuous slewing mechanism comprises a slewing disc, a plurality of thrust blocks and a plurality of pipe rolling oil cylinders; the rotary disc is internally used for inserting a sleeve, and the thrust block is arranged on the rotary disc; the pipe twisting oil cylinders are distributed on the periphery of the rotary disc, and 360-degree continuous rotation of the rotary disc is realized through staggered stretching and contraction of the oil cylinders and respectively acting on different thrust blocks; when the tube rolling oil cylinder acts on the thrust block, the thrust block can automatically clamp the sleeve under the thrust action of the tube rolling oil cylinder, so that the sleeve and the rotary disc synchronously rotate;
the lifting mechanism is arranged below the rotary disc and can lift and adjust the rotary disc;
and the power mechanism is used for providing power for the continuous slewing mechanism and/or the lifting mechanism.
Optionally, the continuous slewing mechanism further comprises a base, and the lifting mechanism is mounted on the base.
Optionally, a lower clamping cylinder and a lower clamp holder are installed at the bottom end of the base, and the lower clamp holder is used for clamping the sleeve.
Optionally, the lifting mechanism includes a lifting disc and a lifting cylinder, and the lifting cylinder is used for driving the lifting disc to lift.
Optionally, the rotary disc is a circular rotary disc or a rectangular rotary disc.
Optionally, the rubbing tube oil cylinders are installed in pairs, and each pair of rubbing tube oil cylinders are symmetrically distributed at 180 degrees.
Optionally, the rubbing pipe oil cylinder is hinged to the inner side wall of the base.
Optionally, a spherical universal joint is mounted at the end of the rubbing tube oil cylinder, and a spherical groove for matching connection with the spherical universal joint is mounted on each thrust block.
Optionally, the thrust block is hinged to the periphery of the rotary disk; and each thrust block is provided with a return spring for returning the thrust block after the thrust of the tube rolling oil cylinder disappears.
Optionally, the hydraulic cylinder device further comprises a control mechanism, and the control mechanism is used for controlling the opening and closing of the power mechanism and/or the stretching of each oil cylinder.
Compared with the prior art, the invention has the following technical effects:
the continuous rotary drilling device suitable for the construction of the large-diameter casing pipe, provided by the invention, generates downward pressure and torque during operation, drives the casing pipe to rotate, and performs cutting drilling on soil bodies, rock strata and the like, and is mainly used for the construction of pile foundation engineering of the large-diameter casing pipe. Compared with the small-angle rotation of the existing pipe rolling machine, the invention realizes the continuous rotation action of the rotating disc by utilizing the intermittent alternate work of the pipe rolling oil cylinder, thereby driving the sleeve to continuously rotate for 360 degrees and pressing and pulling the sleeve in and out, and has high drilling efficiency and strong practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a continuous rotary drilling apparatus suitable for large diameter casing pipe construction according to the present invention;
FIG. 2 is a top plan view of the continuous rotary drilling apparatus of FIG. 1;
FIG. 3 is a cross-sectional view of the continuous rotary drilling apparatus of FIG. 2;
wherein the reference numerals are: 1. a power mechanism; 2. a control mechanism; 3. a control cable; 4. a hydraulic rubber hose; 5. a hydraulic manifold; 6-1, a first pipe twisting oil cylinder; 6-2, a second tube rolling oil cylinder; 6-3, a third tube twisting oil cylinder; 7. a first pin shaft; 8. an oil cylinder support; 9. a second pin shaft; 10-1, a first thrust block; 10-2, a second thrust block; 10-3, a third thrust block; 10-4, a fourth thrust block; 11. a return spring; 12. a spherical recess; 13. a ball joint; 14. a lifting plate; 15. a lift cylinder; 16. a rotary disk; 17. a lower clamp holder; 18. a lower clamping cylinder; 19. a base; 20. a sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a continuous rotary drilling device suitable for large-diameter casing pipe construction, which solves the problems of small rubbing angle and low drilling efficiency of a pipe rolling machine, can realize continuous rotary drilling of large-diameter casing pipes, and can press or lift the casing pipes in or out.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 1-3, the present embodiment provides a continuous rotary drilling apparatus suitable for large diameter casing pipe construction, which mainly comprises five parts, namely a power mechanism 1, a control mechanism 2, a continuous rotary mechanism, a lifting mechanism and a base 19. The power mechanism 1 can be driven by a motor or a diesel engine to drive a hydraulic pump to provide hydraulic power; the control mechanism 2 can control the extension and retraction of each oil cylinder and realize alternate movement; the continuous slewing mechanism mainly comprises a slewing disc 16, a plurality of thrust blocks, a return spring 11, a plurality of tube rolling oil cylinders, an oil cylinder support 8, a pin shaft and the like; the lifting mechanism is arranged below the rotary disc 16 and mainly comprises a lifting disc 14 and a plurality of lifting oil cylinders 15; the continuous slewing mechanism is hinged with a base 19 through an oil cylinder, the lifting mechanism is arranged above a bottom plate of the base 19, and the lower end of the base 19 is provided with a lower clamping oil cylinder 18 and a lower clamp 17 connected with the end part of the lower clamping oil cylinder 18. Wherein, the base 19 is provided with a hydraulic manifold 5, each oil cylinder is connected to the power mechanism 1 through a hydraulic rubber tube 4, and the power mechanism 1 is electrically connected with the control mechanism 2 through a control cable 3.
In the present embodiment, as shown in fig. 1-2, the rotary disk 16 is preferably a circular rotary disk, 8 thrust blocks are uniformly distributed on the periphery of the rotary disk 16, each thrust block is hinged to the rotary disk 16 through a first pin 7, and the thrust blocks on the same diameter are in a group, and the total number of the thrust blocks is four; as shown in figure 2, a return spring 11 is arranged behind each thrust block, and the thrust blocks can be forced to return.
Further, in this embodiment, as shown in fig. 1-2, 6 tube rolling oil cylinders are installed on the periphery of the rotary disk 16 (in this embodiment, the number of thrust blocks is 2 more than that of the tube rolling oil cylinders, and may be increased or decreased as needed), and each tube rolling oil cylinder is hinged to the inner side wall of the base 19 through the second pin 9 and the oil cylinder support 8.
Further, in this embodiment, as shown in fig. 1 to 3, a ball joint 13 is mounted at the head of each tube rolling cylinder, and the ball joint 13 can be connected with the spherical groove 12 of the thrust block and locked by the thrust of the cylinder. The 6 pipe twisting oil cylinders of the embodiment are arranged in three groups, each group of pipe twisting oil cylinders are arranged in 180-degree bisection by taking the center of the rotary disc as a central point, and the two oil cylinders of each group work synchronously and act in the same direction.
In this embodiment, as shown in fig. 3, four lift cylinders 15 are specifically provided in the lift mechanism to support the lift plate 14 to move up and down.
In this embodiment, as shown in fig. 3, preferably, the lower end of the base 19 is provided with four lower clamping cylinders 18 which are uniformly distributed on the circumference and correspond to 2 lower clamps 17, and two clamping parts of each lower clamp 17 are respectively mounted on two lower clamping cylinders 18 which are oppositely arranged. The lower clamping cylinder 18 extends and retracts to drive the two clamping parts of the lower clamp holder 17 to approach or separate, so that the sleeve 20 is clamped and loosened. The lower clamp is an existing pipe clamping structure, and is not described herein again.
When the device is not in a working state, the pipe rolling oil cylinders are not fixedly connected with the rotary disc 16, so that the rotary disc 16 is not horizontally supported, and the rotary disc 16 falls on the lifting disc 14 under the action of gravity. The lifting disc 14 is provided with a through hole in the middle and can pass through the sleeve 20, and the central centering pipe passes through the lifting disc 14 and the rotary disc 16 in a non-working state, so that the whole device is in a clamping state and keeps stable. When the machine is in a working state, the central pipe is taken out and replaced into the sleeve 20, the lifting disc 14 jacks up the rotary disc 16 to a height which can be kept horizontal with the pipe twisting oil cylinder under the action of the lifting oil cylinder 15, and then the pipe twisting oil cylinder clamps the rotary disc and starts working.
The following will explain the specific working principle of the continuous rotary drilling device of this embodiment with reference to fig. 1, wherein the first thrust piece 10-1, the second thrust piece 10-2, the third thrust piece 10-3 and the fourth thrust piece 10-4 are involved in the working process.
As shown in figure 1, the first pipe twisting oil cylinder 6-1 is at an initial position, the second pipe twisting oil cylinder 6-2 is at a stroke midpoint, and the third pipe twisting oil cylinder 6-3 is at a stroke tail end. At the moment, the third pipe rolling oil cylinder 6-3 retracts, the first pipe rolling oil cylinder and the second pipe rolling oil cylinder continue to extend, when the first pipe rolling oil cylinder 6-1 is positioned at the middle point of the stroke, the second pipe rolling oil cylinder 6-2 is positioned at the tail end of the stroke, and the third pipe rolling oil cylinder 6-3 retracts and automatically extends to a section to be automatically connected with and locked with the fourth thrust block 10-4; the pipe rolling oil cylinder III 6-3 retracts, the pipe rolling oil cylinder II 6-2 retracts, the pipe rolling oil cylinder I6-1 continues to extend, when the pipe rolling oil cylinder III 6-3 is located at the stroke middle point, the pipe rolling oil cylinder II 6-2 retracts to be located at the stroke end, the pipe rolling oil cylinder I6-1 is already located at the stroke end, the pipe rolling oil cylinder II 6-2 retracts and automatically extends to a section, and the pipe rolling oil cylinder II is automatically connected with the thrust block III 10-3 and locked; the 360-degree continuous rotation of the rotating disc is realized by the cyclic reciprocating.
The thrust block can automatically clamp the sleeve 20 under the thrust action of the tube rolling oil cylinder, so that the sleeve 20 and the rotary disc synchronously rotate, and can automatically separate under the action of the return spring when the tube rolling oil cylinder retracts.
The rotary driving mechanism realizes automatic rotary motion within a sleeve stroke. Soil, rock formations, etc. at the bottom of the casing 20 are cut by driving the casing 20 to rotate and advanced under the weight of the casing 20 and the continuous rotating mechanism until the rotating disc 16 falls onto the lifting disc 14.
In this embodiment, the rotary plate 16 can move up and down by the driving of the lifting plate 14, and when moving up and down, the lower clamp 17 can be driven by the lower clamp cylinder 18 to clamp and fix the sleeve 20.
In this embodiment, the height of the rotary plate 16 is preferably about 0.6 m.
Therefore, in the embodiment, three groups (six) of the pipe twisting oil cylinders are matched with each other, the 360-degree continuous rotation of the rotary disc and the sleeve can be realized through intermittent alternate work, and the problems of small twisting angle and low drilling efficiency of the pipe twisting machine are solved; in the embodiment, the rotary disc can rotate and move up and down under the pushing of the lifting disc, and the lifting height of the rotary disc is about 0.6 m; the rotary disc in the embodiment can also be square or rectangular, the specific shape can be determined according to construction requirements and transportation requirements, and the working effect is not influenced; the continuous rotary drilling device of this embodiment does not rely on circulation media such as mud in the course of the work, and construction equipment low noise, construction speed are fast, can realize 360 degrees rotary cutting cuttings of sleeve pipe under the prerequisite of guaranteeing construction quality, compares other construction equipment, receives environmental factor restriction little, need not to increase other auxiliary facilities, and the efficiency of construction of removing obstacles and pulling out the pile is high, the risk is low, has good economic benefits.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A continuous rotary drilling device suitable for large-diameter casing pipe construction is characterized by comprising:
the continuous slewing mechanism comprises a slewing disc, a plurality of thrust blocks and a plurality of pipe rolling oil cylinders; the rotary disc is internally used for inserting a sleeve, and the thrust block is arranged on the rotary disc; the pipe twisting oil cylinders are distributed on the periphery of the rotary disc, and 360-degree continuous rotation of the rotary disc is realized through staggered stretching and contraction of the oil cylinders and respectively acting on different thrust blocks; when the tube rolling oil cylinder acts on the thrust block, the thrust block can automatically clamp the sleeve under the thrust action of the tube rolling oil cylinder, so that the sleeve and the rotary disc synchronously rotate;
the lifting mechanism is arranged below the rotary disc and can lift and adjust the rotary disc;
and the power mechanism is used for providing power for the continuous slewing mechanism and/or the lifting mechanism.
2. The continuous rotary drilling device suitable for large-diameter casing construction according to claim 1, wherein the continuous rotary mechanism further comprises a base on which the elevating mechanism is mounted.
3. The continuous rotary drilling device suitable for the construction of the large-diameter casing according to claim 2, wherein a lower clamping cylinder and a lower clamp holder for clamping the casing are installed at the bottom end of the base.
4. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 1, wherein the elevating mechanism comprises an elevating plate and an elevating cylinder for driving the elevating plate to ascend and descend.
5. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 1, wherein the rotary disk is a circular rotary disk or a rectangular rotary disk.
6. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 1, wherein the tubular rolling cylinders are installed in pairs, and each pair of the tubular rolling cylinders are symmetrically distributed at 180 degrees.
7. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 2, wherein the pipe rolling oil cylinder is hinged to the inner side wall of the base.
8. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 7, wherein a ball joint is mounted at the end of the pipe rolling oil cylinder, and a spherical groove for matching connection with the ball joint is mounted on each thrust block.
9. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 1, wherein the thrust block is hinged to the outer periphery of the rotary disk; and each thrust block is provided with a return spring for returning the thrust block after the thrust of the tube rolling oil cylinder disappears.
10. The continuous rotary drilling device suitable for large-diameter casing pipe construction according to claim 1, further comprising a control mechanism for controlling the opening and closing of the power mechanism and/or the extension and retraction of each oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170872.4A CN112127794A (en) | 2020-10-28 | 2020-10-28 | Continuous rotary drilling device suitable for large-diameter casing pipe construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170872.4A CN112127794A (en) | 2020-10-28 | 2020-10-28 | Continuous rotary drilling device suitable for large-diameter casing pipe construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112127794A true CN112127794A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011170872.4A Pending CN112127794A (en) | 2020-10-28 | 2020-10-28 | Continuous rotary drilling device suitable for large-diameter casing pipe construction |
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| CN (1) | CN112127794A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012810A (en) * | 2022-06-09 | 2022-09-06 | 长江岩土工程有限公司 | Full-hydraulic power head drilling machine suitable for drilling loose and broken stratum |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201470934U (en) * | 2009-08-19 | 2010-05-19 | 北京市三一重机有限公司 | Dematron drilling machine |
| CN107620574A (en) * | 2017-10-11 | 2018-01-23 | 南京路鼎搅拌桩特种技术有限公司 | A kind of full circle swinging all casing drill main body and full circle swinging all casing drill |
| CN207194848U (en) * | 2017-09-05 | 2018-04-06 | 徐州盾安重工机械制造有限公司 | Full-sleeve full-rotation drill sleeve pipe clamping device |
| CN209457867U (en) * | 2018-12-04 | 2019-10-01 | 珠海天力重工有限公司 | A kind of stride and crawler belt combination formula full-sleeve full-rotation drill |
| CN213297832U (en) * | 2020-10-28 | 2021-05-28 | 中国地质科学院勘探技术研究所 | Continuous rotary drilling device suitable for large-diameter casing pipe construction |
-
2020
- 2020-10-28 CN CN202011170872.4A patent/CN112127794A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201470934U (en) * | 2009-08-19 | 2010-05-19 | 北京市三一重机有限公司 | Dematron drilling machine |
| CN207194848U (en) * | 2017-09-05 | 2018-04-06 | 徐州盾安重工机械制造有限公司 | Full-sleeve full-rotation drill sleeve pipe clamping device |
| CN107620574A (en) * | 2017-10-11 | 2018-01-23 | 南京路鼎搅拌桩特种技术有限公司 | A kind of full circle swinging all casing drill main body and full circle swinging all casing drill |
| CN209457867U (en) * | 2018-12-04 | 2019-10-01 | 珠海天力重工有限公司 | A kind of stride and crawler belt combination formula full-sleeve full-rotation drill |
| CN213297832U (en) * | 2020-10-28 | 2021-05-28 | 中国地质科学院勘探技术研究所 | Continuous rotary drilling device suitable for large-diameter casing pipe construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012810A (en) * | 2022-06-09 | 2022-09-06 | 长江岩土工程有限公司 | Full-hydraulic power head drilling machine suitable for drilling loose and broken stratum |
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