CN112253000B - Built-in thick liquid tubular drill rod subassembly - Google Patents
Built-in thick liquid tubular drill rod subassembly Download PDFInfo
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- CN112253000B CN112253000B CN202011131514.2A CN202011131514A CN112253000B CN 112253000 B CN112253000 B CN 112253000B CN 202011131514 A CN202011131514 A CN 202011131514A CN 112253000 B CN112253000 B CN 112253000B
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- 239000007788 liquid Substances 0.000 title description 4
- 230000005540 biological transmission Effects 0.000 claims abstract description 130
- 239000002002 slurry Substances 0.000 claims abstract description 118
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 239000002131 composite material Substances 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000004568 cement Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004804 winding Methods 0.000 description 3
- 239000011440 grout Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
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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)
Abstract
A built-in slurry pipe type drill rod assembly comprises a transmission assembly connected with the bottom of a top plate, wherein the transmission assembly is formed by coaxially assembling a plurality of composite transmission rods, and each composite transmission rod comprises a first outer pipe body, a first transmission rod and a first slurry steel pipe; the bottom end of each composite transmission rod is provided with a support assembly, the support assemblies are arranged on a tool rest, the bottom of the tool rest is rotatably provided with a drill bit, the surface of the tool rest is provided with a submergence motor and a slurry pump, and the submergence motor is in transmission connection with the drill bit; the supporting assembly comprises a second outer pipe body, a second transmission rod and a second slurry steel pipe; because the manufacturing cost of the steel pipe is lower, a slurry hose is not needed in the part of the drill rod assembly, the manufacturing cost can be greatly reduced by replacing the steel pipe with the slurry hose, and the steel pipe is arranged in the first outer pipe body, so that the slurry steel pipe has longer service life and resists impact; the lifting of the slurry steel pipe is synchronously carried out with the drill rod assembly, and a special lifting component is not required to be configured.
Description
Technical Field
The invention belongs to the technical field of trenching equipment, and particularly relates to a built-in slurry pipe type drill rod assembly.
Background
When a bearing wall is constructed in a ditching way, a soft pulping pipe needs to be configured to pump out slurry at a drill bit; when the waterproof wall is constructed by ditching, a soft grout pipe is required to be configured to spray cement grout to a drill bit; however, the slurry pumping and spraying by the slurry pipe have the following problems: 1. the price of the slurry pipe is expensive, so that the manufacturing cost of the whole ditching equipment is increased; 2. the flexible slurry pipe needs to be provided with a winding drum for winding and unwinding, so that the slurry pipe winding drum and a traction wheel of a drill rod assembly need to synchronously rotate, the rotation speed is troublesome to adjust, and a control system is easy to make mistakes; 3. the existing slurry pipe is arranged outside the drill rod, and the risk of breakage exists in a ditch.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a built-in slurry pipe type drill rod component, which has the following specific technical scheme:
a built-in slurry pipe type drill rod assembly comprises a transmission assembly connected with the bottom of a top plate, wherein the transmission assembly is formed by coaxially assembling a plurality of composite transmission rods, and each composite transmission rod comprises a first outer pipe body, a first transmission rod and a first slurry steel pipe; a first transmission rod is rotatably mounted at the center line of the inner part of the first outer pipe body, first slurry steel pipes are fixed at one side of the first transmission rod at intervals, a plurality of first slurry steel pipes are sequentially assembled and communicated to form a slurry diversion channel, and a plurality of first transmission rods are sequentially assembled to form a transmission rod assembly;
the bottom end of each composite transmission rod is provided with a support assembly, the support assemblies are arranged on a tool rest, the bottom of the tool rest is rotatably provided with a drill bit, the drill bit is oppositely arranged at the bottom end of the support assembly, the surface of the tool rest is provided with a submergence motor and a slurry pump, and the submergence motor is in transmission connection with the drill bit;
the support assembly comprises a second outer pipe body, a second transmission rod and a second slurry steel pipe, the bottom end of the second outer pipe body is mounted on the tool rest, and the top end of the second outer pipe body is assembled with the first outer pipe body; a second transmission rod is rotatably mounted at the middle line of the inner portion of the second outer pipe body, a second slurry steel pipe is fixed to one side of the second transmission rod and is communicated with the slurry diversion channel in an assembling mode, the second transmission rod is fixedly assembled with the transmission rod assembly, the second slurry steel pipes are connected to one end of a slurry pump in parallel, and the other end of the slurry pump is communicated to the area between the drill bits.
Furthermore, the bottom of the first transmission rod is vertically provided with a positioning column, the top end of the first transmission rod is provided with a positioning hole which is matched and spliced with the positioning column, the bottom end of the first slurry steel pipe is provided with an insertion pipe, the insertion pipe is matched and spliced with an inner hole of the first slurry steel pipe, and the positioning column and the insertion pipe both extend outwards to form a first outer pipe body.
Furthermore, the composite transmission rod further comprises a first fixing plate and a first bearing, the first fixing plates are mounted in the middle, at the top end and at the bottom end of the inner part of the first outer pipe body, the first bearing is embedded in the center of each first fixing plate, the first transmission rod sequentially penetrates through each first bearing, and the top end of the first transmission rod is fixedly welded in the first bearing positioned at the top end of the first outer pipe body; the bottom end of the first transmission rod is fixedly welded inside a first bearing at the bottom end of the first outer pipe body; the first slurry steel pipe penetrates through the first fixing plates in sequence, and the first slurry steel pipe is fixedly welded with the first fixing plates located at the top end and the bottom end.
Furthermore, the supporting component further comprises a second fixing plate, the second fixing plate is arranged in the middle of the second outer pipe body, a second transmission rod penetrates through the center of the second fixing plate in a rotating mode, and the second slurry steel pipe is located at the top of the second fixing plate.
Further, the top end and the bottom end of the first outer pipe body are both provided with a first inner flange, the outer diameter of the first inner flange is the same as that of the first outer pipe body, the top end and the bottom end of the second outer pipe body are both provided with a second inner flange, and the outer diameters of the first inner flange, the first outer pipe body, the second inner flange and the second outer pipe body are all the same.
Furthermore, the centers of the first transmission rod and the second transmission rod are both in a through hole structure, the second transmission rod is communicated with the drill bit, and the outer wall of the drill bit is provided with a jet orifice.
The invention has the beneficial effects that:
1. because the manufacturing cost of the steel pipe is lower, a slurry hose is not needed in the part of the drill rod assembly, the manufacturing cost can be greatly reduced by replacing the steel pipe with the slurry hose, and the steel pipe is arranged in the first outer pipe body, so that the slurry steel pipe has longer service life and resists impact;
2. the lifting of the slurry steel pipe and the drill rod assembly are carried out synchronously without configuring a special lifting component;
3. the drilling rod assembly can be detachably assembled between the composite transmission rods, the drilling depth of the drilling rod assembly can be increased, the application range is widened, and the first transmission rod and the first slurry steel pipe are integrated in each section of the composite transmission rod, so that when the first outer pipe body is assembled, the first transmission rod and the first slurry steel pipe can be synchronously assembled, the integration is completed, and the operation is simple, convenient and quick.
Drawings
FIG. 1 shows a schematic structural view of a mud tube drill stem assembly of the present invention;
FIG. 2 shows a schematic view of the composite drive link construction of the present invention;
FIG. 3 shows a schematic view of the internal cross-section of the composite drive rod of the present invention;
FIG. 4 is a schematic view of the connection of adjacent composite drive links of the present invention;
FIG. 5 shows a schematic structural view of the support assembly of the present invention;
shown in the figure: 1. a top plate; 2. a composite transmission rod; 21. a first outer tube; 211. a first inner flange; 22. a first drive lever; 221. a positioning column; 222. positioning holes; 23. a first slurry steel pipe; 231. inserting a tube; 24. a first fixing plate; 25. a first bearing; 3. a support assembly; 31. a second outer tube body; 311. a second inner flange; 32. a second transmission rod; 33. a second slurry steel pipe; 34. a second fixing plate; 4. a tool holder; 5. a drill bit; 6. submerging the motor; 7. and (5) slurry pumps.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
A built-in slurry pipe type drill rod component comprises a transmission component connected with the bottom of a top plate 1, wherein the transmission component is formed by coaxially assembling a plurality of composite transmission rods 2, and each composite transmission rod 2 comprises a first outer pipe body 21, a first transmission rod 22 and a first slurry steel pipe 23; a first transmission rod 22 is rotatably installed at the center line of the inner part of the first outer pipe body 21, first slurry steel pipes 23 are fixed at one side of the first transmission rod 22 at intervals, a plurality of the first slurry steel pipes 23 are sequentially assembled and communicated to form a slurry diversion channel, and a plurality of the first transmission rods 22 are sequentially assembled to form a transmission rod assembly; because the cost of the steel pipe is lower, a slurry hose is not needed in the part of the drill rod assembly, the manufacturing cost can be greatly reduced by replacing the steel pipe with the slurry hose, and the steel pipe is arranged in the first outer pipe body, so that the slurry steel pipe has longer service life and resists impact; the first outer pipe body can also protect the first transmission rod, so that the transmission stability and the perpendicularity of the first transmission rod are ensured, and the first transmission rod is prevented from shaking and bending;
the composite transmission rods are detachably assembled, the drilling depth of the drill rod assembly can be increased, the application range is widened, and the first transmission rod and the first slurry steel pipe are integrated in each section of the composite transmission rod, so that when the first outer pipe body is assembled, the first transmission rod and the first slurry steel pipe can be synchronously assembled, the integration is completed, and the operation is simple, convenient and quick;
the bottom end of each composite transmission rod 2 is provided with a support component 3, the support components 3 are arranged on a tool rest 4, the bottom of the tool rest 4 is rotatably provided with a drill bit 5, the drill bit 5 is oppositely arranged at the bottom end of the support component 3, the surface of the tool rest 4 is provided with a submergence motor 6 and a slurry pump 7, and the submergence motor 6 is in transmission connection with the drill bit 5; the bottom of the drill bit is connected with the support assembly, so that the composite transmission rods can be directly assembled one by one subsequently without being assembled with the drill bit, and the composite transmission rods are more convenient and efficient to assemble;
as shown in fig. 5, the supporting assembly 3 includes a second outer tube 31, a second transmission rod 32 and a second slurry steel tube 33, wherein the second outer tube 31 has a bottom end mounted on the tool rest 4 and a top end assembled with the first outer tube 21; a second transmission rod 32 is rotatably mounted at the central line of the interior of the second outer tube body 31, a second slurry steel tube 33 is fixed at one side of the second transmission rod 32, the second slurry steel tube 33 is assembled and communicated with the slurry guide channel, and the second transmission rod 32 is assembled and fixed with the transmission rod assembly; the second transmission rod can be pre-connected with the drill bit into a whole, so that the composite transmission rod needs to be connected with the drill bit when being installed; the second slurry steel pipe can be connected with a slurry pump, so that a slurry pump pipeline does not need to be arranged when the composite transmission rod is connected;
each second slurry steel pipe 33 is connected to one end of a slurry pump 7 in parallel, and the other end of the slurry pump 7 is communicated to the area between the drill bits 5; the mud pump can pump out mud between the drill bits or discharge cement slurry between the drill bits.
As shown in fig. 2, a positioning column 221 is vertically disposed at the bottom end of the first transmission rod 22, a positioning hole 222 engaged with the positioning column 221 is disposed at the top end of the first transmission rod, an insertion tube 231 is disposed at the bottom end of the first slurry steel pipe 23, the insertion tube 231 is engaged with the inner hole of the first slurry steel pipe 23, and both the positioning column 221 and the insertion tube 231 extend out of the first outer pipe 21; when the different first transmission rods are assembled together, the positioning columns are inserted into the positioning holes, so that the different first transmission rods are assembled, and the first transmission rods can integrally rotate; the intubate is inserted to first thick liquids steel pipe in, realizes that different first thick liquids steel pipe connect as an organic wholely.
As shown in fig. 2 and 3, the composite transmission rod 2 further includes a first fixing plate 24 and a first bearing 25, the first fixing plate 24 is installed at the middle portion, the top end and the bottom end of the inside of the first outer tube 21, the first bearing 25 is embedded in the center of each first fixing plate 24, the first transmission rod 22 sequentially penetrates through each first bearing 25, and the top end of the first transmission rod 22 is welded and fixed inside the first bearing 25 at the top end of the first outer tube 21; the bottom end of the first transmission rod 22 is welded and fixed inside a first bearing 25 at the bottom end of the first outer pipe body 21; the first slurry steel pipes 23 sequentially penetrate through the first fixing plates 24, and the first slurry steel pipes 23 are welded and fixed with the first fixing plates 24 positioned at the top end and the bottom end; the three first fixing plates at the middle part, the top end and the bottom end can position the first slurry steel pipe and the first transmission rod at three positions, so that the first slurry steel pipe and the first transmission rod are stably stored in the first outer pipe body; the first bearing is used for enabling the first transmission rod to stably rotate in the first bearing, and the first transmission rod is welded on the inner wall of the inner ring body of the first bearing.
As shown in fig. 5, the supporting assembly 3 further includes a second fixing plate 34, the second fixing plate 34 is disposed in the middle of the second outer tube 31, a second transmission rod 32 is rotatably penetrated through the center of the second fixing plate 34, and the second slurry steel tube 33 is located at the top of the second fixing plate 34; the second fixed plate can support and position the second transmission rod, so that the second transmission rod can stably rotate.
As shown in fig. 2, the first outer tube 21 has first inner flanges 211 at the top and bottom ends thereof, the outer diameter of the first inner flanges 211 is the same as that of the first outer tube 21, the second outer tube 31 has second inner flanges 311 at the top and bottom ends thereof, and the outer diameters of the first inner flanges 211, the first outer tube 21, the second inner flanges 311, and the second outer tube 31 are the same; the inner flange is utilized to realize different first pipe bodies, the first pipe bodies and the second pipe bodies are quickly assembled, the design of the inner flange also can enable the whole outer wall of the composite transmission rod to be flat, the resistance is reduced, and the blocking is eliminated.
The centers of the first transmission rod 22 and the second transmission rod 32 are both of a through hole structure, the second transmission rod 32 is communicated with a drill bit 5, and the outer wall of the drill bit 5 is provided with a jet orifice; the first transmission rod, the second transmission rod and the drill bit can form a water injection flow channel, so that water is discharged from the drill bit.
The invention is implemented as follows:
according to the required drilling depth, the transmission assembly is adjusted to a specified length, when the slurry guide channel is assembled, the first inner flanges on different first outer pipe bodies 21 are aligned, the first inner flanges are fixed into a whole through screws, when the first outer pipe bodies 21 are connected into a whole, the positioning column 221 at the bottom end of the upper first transmission rod 22 is inserted into the positioning hole 222 of the lower first transmission rod 22, the inserting pipe 231 of the upper first slurry steel pipe 23 is inserted into the inner hole of the lower first slurry steel pipe 23, so that different first transmission rods can be assembled into the transmission rod assembly, and different first slurry steel pipes are assembled into the slurry guide channel;
the assembled transmission assembly is installed on the support assembly 3, the positioning column of the first transmission rod 22 is inserted into the positioning hole at the top end of the second transmission rod 32, the insertion tube of the first slurry steel tube 23 is inserted into the second slurry steel tube 33, and the first inner flange 211 and the second inner flange 311 are connected into a whole through screws.
Example one
When a bearing wall needs to be driven, the slurry steel pipe is used as a slurry suction pipe;
the whole drill rod assembly is submerged for ditching, the submerging motor 6 drives the drill bit 5 to rotate through the gears, and external high-pressure water is discharged to the drill bit 5 through the first transmission rod 22 and the second transmission rod 32, so that rapid excavating is realized;
all the slurry suction pipes of the slurry pump 7 can synchronously pump out slurry, and then the slurry is discharged into all the transmission assemblies through a plurality of slurry outlet pipes, so that simultaneous slurry suction of a plurality of pipe bodies is realized; the slurry in the suspended and excavated portion is pumped out to the second slurry steel pipe 33 by the slurry pump 7, and then discharged to the slurry hose through the first slurry steel pipe 23.
Example two
When the waterproof wall needs to be drilled, the slurry steel pipe is used as a slurry spraying pipe;
the whole drill rod assembly is submerged for ditching, the submerging motor 6 drives the drill bit 5 to rotate through the gears, and external high-pressure water is discharged to the drill bit 5 through the first transmission rod 22 and the second transmission rod 32, so that rapid excavating is realized;
the cement slurry is guided into the second slurry steel pipe 33 through the slurry hose and then discharged to the space between the drill bits 5 through the first slurry steel pipe 23, so that the filling of the cement slurry is realized;
and after the cement slurry is filled, exhausting and draining the water to prepare the waterproof wall.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A built-in mud pipe type drill rod component is characterized in that: the slurry pipe joint comprises a transmission assembly connected with the bottom of a top plate (1), wherein the transmission assembly is formed by coaxially assembling a plurality of composite transmission rods (2), and each composite transmission rod (2) comprises a first outer pipe body (21), a first transmission rod (22) and a first slurry steel pipe (23); a first transmission rod (22) is rotatably mounted at the central line in the first outer pipe body (21), first slurry steel pipes (23) are fixed at one side of the first transmission rod (22) at intervals, a plurality of first slurry steel pipes (23) are sequentially assembled and communicated to form a slurry diversion channel, and a plurality of first transmission rods (22) are sequentially assembled to form a transmission rod assembly;
the bottom end of each composite transmission rod (2) is provided with a support assembly (3), the support assemblies (3) are arranged on a tool rest (4), the bottom of the tool rest (4) is rotatably provided with a drill bit (5), the drill bit (5) is oppositely arranged at the bottom end of the support assembly (3), the surface of the tool rest (4) is provided with a submergence motor (6) and a slurry pump (7), and the submergence motor (6) is in transmission connection with the drill bit (5);
the supporting assembly (3) comprises a second outer pipe body (31), a second transmission rod (32) and a second slurry steel pipe (33), the bottom end of the second outer pipe body (31) is installed on the tool rest (4), and the top end of the second outer pipe body is assembled with the first outer pipe body (21); a second transmission rod (32) is rotatably mounted at the center line of the inner portion of the second outer pipe body (31), a second slurry steel pipe (33) is fixed to one side of the second transmission rod (32), the second slurry steel pipe (33) is communicated with a slurry guide channel in an assembling mode, the second transmission rod (32) is fixedly assembled with a transmission rod assembly, each second slurry steel pipe (33) is connected to one end of a slurry pump (7) in parallel, and the other end of the slurry pump (7) is communicated to the area between the drill bits (5).
2. The internal mud tube drill stem assembly of claim 1, wherein: the bottom end of the first transmission rod (22) is vertically provided with a positioning column (221), the top end of the first transmission rod is provided with a positioning hole (222) which is matched and spliced with the positioning column (221), the bottom end of the first slurry steel pipe (23) is provided with an insertion pipe (231), the insertion pipe (231) is matched and spliced with an inner hole of the first slurry steel pipe (23), and the positioning column (221) and the insertion pipe (231) extend outwards to form a first outer pipe body (21).
3. The internal mud tube drill stem assembly of claim 2, wherein: the composite transmission rod (2) further comprises a first fixing plate (24) and first bearings (25), the first fixing plates (24) are mounted in the middle, at the top end and at the bottom end of the interior of the first outer pipe body (21), the first bearings (25) are embedded into the center of each first fixing plate (24), the first transmission rod (22) sequentially penetrates through the first bearings (25), and the top end of the first transmission rod (22) is fixedly welded inside the first bearings (25) located at the top end of the first outer pipe body (21); the bottom end of the first transmission rod (22) is fixedly welded inside a first bearing (25) positioned at the bottom end of the first outer pipe body (21); the first slurry steel pipes (23) sequentially penetrate through the first fixing plates (24), and the first slurry steel pipes (23) are fixedly welded with the first fixing plates (24) located at the top end and the bottom end.
4. The internal mud tube drill stem assembly of claim 3, wherein: the supporting assembly (3) further comprises a second fixing plate (34), the second fixing plate (34) is arranged in the middle of the second outer pipe body (31), a second transmission rod (32) penetrates through the center of the second fixing plate (34) in a rotating mode, and the second slurry steel pipe (33) is located at the top of the second fixing plate (34).
5. The internal mud tube drill stem assembly of claim 4, wherein: the top, the bottom of first outer body (21) all are equipped with first inner flange (211), the external diameter of first inner flange (211) is the same with the external diameter of first outer body (21), the top, the bottom of second outer body (31) all are equipped with second inner flange (311), the external diameters of first inner flange (211), first outer body (21), second inner flange (311) and second outer body (31) are all the same.
6. The internal mud tube drill stem assembly of claim 1, wherein: the centers of the first transmission rod (22) and the second transmission rod (32) are both in a through hole structure, the second transmission rod (32) is communicated with the drill bit (5), and the outer wall of the drill bit (5) is provided with a jet orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011131514.2A CN112253000B (en) | 2020-10-21 | 2020-10-21 | Built-in thick liquid tubular drill rod subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011131514.2A CN112253000B (en) | 2020-10-21 | 2020-10-21 | Built-in thick liquid tubular drill rod subassembly |
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| Publication Number | Publication Date |
|---|---|
| CN112253000A CN112253000A (en) | 2021-01-22 |
| CN112253000B true CN112253000B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011131514.2A Active CN112253000B (en) | 2020-10-21 | 2020-10-21 | Built-in thick liquid tubular drill rod subassembly |
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| CN (1) | CN112253000B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094438A (en) * | 2010-09-01 | 2011-06-15 | 张永忠 | Four-wheel double-suction groover |
| CN202228024U (en) * | 2011-09-28 | 2012-05-23 | 郭宪军 | Submersible mud pump-type reverse circulation drill |
| US20140345170A1 (en) * | 2013-05-22 | 2014-11-27 | Tusk Subsea Services, LLC | Method and Apparatus for Underwater Dredging |
| CN104790449A (en) * | 2015-04-29 | 2015-07-22 | 河北新钻钻机有限公司 | Submersible type dredger |
| CN208183839U (en) * | 2018-05-07 | 2018-12-04 | 中铁大桥局集团第一工程有限公司 | A kind of strand suction suction dredge |
| CN110439048A (en) * | 2019-08-29 | 2019-11-12 | 南京江北新区中心区发展有限公司 | Hydraulic excavation, cutter suction equipment and method for inner support foundation pit engineering |
-
2020
- 2020-10-21 CN CN202011131514.2A patent/CN112253000B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094438A (en) * | 2010-09-01 | 2011-06-15 | 张永忠 | Four-wheel double-suction groover |
| CN202228024U (en) * | 2011-09-28 | 2012-05-23 | 郭宪军 | Submersible mud pump-type reverse circulation drill |
| US20140345170A1 (en) * | 2013-05-22 | 2014-11-27 | Tusk Subsea Services, LLC | Method and Apparatus for Underwater Dredging |
| CN104790449A (en) * | 2015-04-29 | 2015-07-22 | 河北新钻钻机有限公司 | Submersible type dredger |
| CN208183839U (en) * | 2018-05-07 | 2018-12-04 | 中铁大桥局集团第一工程有限公司 | A kind of strand suction suction dredge |
| CN110439048A (en) * | 2019-08-29 | 2019-11-12 | 南京江北新区中心区发展有限公司 | Hydraulic excavation, cutter suction equipment and method for inner support foundation pit engineering |
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| Publication number | Publication date |
|---|---|
| CN112253000A (en) | 2021-01-22 |
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