CN112814600B - Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool - Google Patents
Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool Download PDFInfo
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- CN112814600B CN112814600B CN202110269270.2A CN202110269270A CN112814600B CN 112814600 B CN112814600 B CN 112814600B CN 202110269270 A CN202110269270 A CN 202110269270A CN 112814600 B CN112814600 B CN 112814600B
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- clamping groove
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- sliding sleeve
- inner pipe
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- 238000005553 drilling Methods 0.000 title claims abstract description 51
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being specially adapted for operation under water
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- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The invention discloses a bayonet type quick assembly and disassembly inner pipe assembly suitable for a rope coring drilling tool of a submarine drilling machine, which comprises a spring clamping assembly, a single-action assembly, a bayonet type assembly and disassembly device and an inner pipe, wherein the spring clamping assembly is connected with the single-action assembly, and the bayonet type assembly and disassembly device comprises a clamping groove joint, a compression spring, a spring guide seat, a sliding sleeve and a clamping rod joint; the single-acting component is connected with the clamping groove connector through the inner pipe connector; the clamping groove joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring holes are communicated with the spring blind holes and coaxial; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the clamping groove joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is provided with a pin hole, a cylindrical pin is arranged in the pin hole, and the clamping groove joint and the clamping rod joint are connected on the clamping groove through a clamping rod. The invention has simple structure and quick operation, and can meet the demand of automatic and quick disassembly and assembly of the inner pipe assembly on the seabed.
Description
Technical Field
The invention relates to a bayonet type quick assembly and disassembly inner tube assembly suitable for a rope core drilling tool of a submarine drilling machine.
Background
With the gradual depletion of landed mineral resources, marine resources become potential alternative energy sources for future socioeconomic development due to the huge reserves. Thus, recent research around the development and utilization of marine mineral resources has been a hotspot. The direct acquisition of rock cores from deep seafloor by drilling techniques is a straightforward method to evaluate mineral reserves and to evaluate the geological conditions of subsea engineering. Currently, there are two main forms of subsea core drilling operations, which are large drill ship sampling and subsea rig sampling, respectively. Compared with a large drilling ship, the submarine drilling machine has the characteristics of high operation efficiency, strong concealment, low requirements on mother ship configuration and the like, and has wide application prospects in the field of marine geological exploration.
The inner tube assembly of the rope coring drilling tool which is commonly used at present and applicable to the submarine drilling machine mainly comprises a spring clamping assembly, a single-action assembly and an inner tube. All inner pipe assemblies required for drilling before normal operation need to be placed in the drill plate of the drilling machine and lowered to the sea floor along with the seabed drilling machine. Typically drilling to a depth of 220 meters requires carrying 75 inner tube assemblies at a time. Because the bullet card subassembly, single action subassembly and the inner tube in the inner tube assembly all adopt threaded connection, so submarine drilling machine is inconvenient to carry out quick assembly disassembly to the inner tube assembly in the seabed. After each drilling, the bullet clamping assemblies and the single-action assemblies in all the inner pipe assemblies are required to be maintained at sea, and the auxiliary operation time is obviously increased compared with the land drilling workload. In addition, the submarine drilling machine is limited by the lifting capacity of the recovery winch, and the submarine drilling machine has strict limit on the whole weight. The number of inner tube assemblies that can be carried is directly related to the weight of a single inner tube assembly. That is, the total number of the inner pipe assemblies which can be carried by the single inner pipe assembly is reduced when the single inner pipe assembly is overweight, so that the effective coring capability of the submarine drilling machine is directly influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides the inner pipe assembly of the rope core drill, which has the advantages of simple structure and quick operation and can be assembled and disassembled quickly.
The technical scheme adopted by the invention is as follows: the utility model provides a swift dismouting inner tube assembly of bayonet socket formula suitable for submarine drilling machine rope coring drilling tool, includes bullet card subassembly, single action subassembly, bayonet socket formula dismouting device and inner tube, bullet card subassembly be connected characterized by with single action subassembly: the bayonet type dismounting device comprises a clamping groove joint, a compression spring, a spring guide seat, a sliding sleeve and a clamping rod joint; the single-acting component is connected with the clamping groove connector through the inner pipe connector; the clamping groove joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring holes are communicated with the spring blind holes and coaxial; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the clamping groove joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is sleeved on the clamping groove joint, a pin hole is formed in the sliding sleeve, a cylindrical pin is arranged in the pin hole, the axis of the cylindrical pin is perpendicular to the central line of the inner pipe, and the cylindrical pin penetrates through a long straight hole in the clamping groove joint; the spring guide seat is supported on the cylindrical pin; the bottom of the clamping groove joint is provided with a plurality of clamping grooves, and the bottom of the sliding sleeve is provided with a sliding sleeve clamping groove; the number of the sliding sleeve clamping grooves is the same as that of the clamping grooves and is arranged corresponding to the clamping grooves; the top of the clamping rod connector is provided with a plurality of clamping rods, and the axes of the clamping rods are perpendicular to the axis of the inner pipe; the number of the clamping sticks is the same as that of the clamping grooves and is arranged corresponding to the clamping grooves, and the sliding sleeve clamping grooves and the clamping grooves can hold the clamping sticks tightly; the clamping rod joint is connected with the inner pipe.
In the quick assembly disassembly inner pipe assembly applicable to the rope coring drilling tool of the submarine drilling machine, each clamping groove is provided with a clamping groove guide groove, the clamping groove guide groove is communicated with one end of the clamping groove, and the two side walls of the clamping groove guide groove are respectively provided with a left guide slope and a right guide slope; the left guiding slope and the right guiding slope form an included angle with the axis of the clamping groove joint, and two adjacent guiding grooves form a sharp point I on the bottom surface of the clamping groove joint.
In the inner pipe assembly which is high in degree and suitable for quick disassembly of the rope core drilling tool of the submarine drilling machine, one side wall of the sliding sleeve clamping groove is arranged along the axis, the upper part of the other side wall is arranged along the axis, and the lower clamping rod of the other side wall is guided to the slope; the lower part of the clamping rod guiding slope is an inclined plane, the upper part is an arc-shaped surface, and two adjacent sliding sleeve clamping grooves form a sharp point II on the bottom surface of the sliding sleeve.
In the quick assembly disassembly inner tube assembly suitable for the rope coring drilling tool of the submarine drilling machine, the point I on the bottom surface of the clamping groove connector is higher than the point II on the bottom surface of the sliding sleeve, the point I and the corresponding point II are staggered in the circumferential direction, and the clamping groove and the corresponding sliding sleeve clamping groove form a clamping rod hole.
Compared with the prior art, the invention has the beneficial effects that:
1) The upper end and the lower end of the inner pipe assembly are connected in a way that the clamping groove is matched and connected with the clamping rod to replace the existing threaded connection way, so that the submarine drilling machine can be quickly assembled and disassembled under the matching of the mechanical arm and the rotating chuck. Through a set of inner tube assembly upper end and several inner tube matched with mode, reduced the carrying quantity of inner tube assembly upper end by a wide margin, be favorable to further increasing the carrying quantity of inner tube under the certain prerequisite of rig total quality, improve the effective coring ability of submarine drilling machine.
2) The device has the characteristic of blind installation and is suitable for remote automatic operation of the submarine drilling machine.
3) Compared with the inner tube assembly of the rope coring drilling tool of the existing submarine drilling machine, the invention can realize the combination and collocation with a plurality of inner tubes by only needing one set of upper end assembly of the inner tube assembly consisting of the spring clamping assembly and the single-action assembly, thereby greatly reducing the auxiliary working time and labor intensity for maintaining the inner tube assembly after the drilling is finished.
Drawings
FIG. 1 is a schematic cross-sectional view of an inner tube assembly of the present invention.
Fig. 2 is a cross-sectional view of the bayonet-type attachment/detachment device of the present invention.
Fig. 3 is an exploded view of the bayonet type dismounting device of the present invention.
FIG. 4 is a schematic diagram of a slot connector according to the present invention.
FIG. 5 is a schematic view of the structure of the sliding sleeve of the present invention.
Fig. 6 is a schematic view of a stick joint according to the present invention.
FIG. 7 is a schematic view of the general construction of the inner tube assembly of the present invention.
FIG. 8 is a schematic view of the inner tube assembly special case structure of the present invention.
FIG. 9 is a schematic view of the inner tube disassembly structure of the present invention.
In the figure: 1-a card flicking assembly; 2-single action assembly; 3-clamping groove joints; 4-compressing a spring; 5-a spring guide seat; 6-a cylindrical pin; 7-sliding sleeve; 8-a bayonet joint; 9-an inner tube; 021-inner tube joint; 031-spring chamber; 032-a clamping groove; 033-left guide ramp; 034-right guide ramp; 071-sliding sleeve guiding ramp; 072-sliding sleeve clamping grooves; 081-stick.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the invention comprises a spring card assembly 1, a single-action assembly 2, a bayonet type dismounting device and an inner tube 9. The spring card assembly 1 is connected with the upper end of the single-action assembly 2.
The bayonet type dismounting device comprises a clamping groove joint 3, a compression spring 4, a spring guide seat 5, a cylindrical pin 6, a sliding sleeve 7 and a clamping rod joint 8; the lower end of the single-action assembly 2 is connected with the clamping groove joint 3 through an inner pipe joint 021; the clamping groove joint 3 and the inner pipe joint 021 are respectively provided with a spring hole 031 and a spring blind hole, and the springs 031 are communicated with the spring blind holes and coaxial; one end of the compression spring 4 is connected with the bottom of the spring blind hole, and the other end is connected with the spring guide seat 5. The clamping groove joint 3 is provided with a long straight hole, and the length direction of the long straight hole is along the axis direction of the inner pipe. The sliding sleeve 7 is sleeved on the clamping groove joint, a pin hole is formed in the sliding sleeve 7, a cylindrical pin 6 is arranged in the pin hole, the axis of the cylindrical pin 6 is perpendicular to the central line of the inner tube 9, the cylindrical pin 6 penetrates through a long straight hole in the clamping groove joint, and the spring guide seat 5 is supported on the cylindrical pin 6.
The bottom of the clamping groove joint 3 is provided with four clamping grooves 032, the bottom of the sliding sleeve 7 is provided with four sliding sleeve clamping grooves 072, and the number of the sliding sleeve clamping grooves 072 is the same as that of the clamping grooves 032 and is corresponding to the clamping grooves 032. Each clamping groove 032 is provided with a clamping groove guide groove, the clamping groove guide groove is communicated with one end of the clamping groove 032, and two side walls of the clamping groove guide groove are respectively provided with a left guide slope 033 and a right guide slope 034; the left and right guide ramps 033 and 034 have an included angle with the axis of the bayonet joint 3. Two adjacent guide grooves form a sharp point I on the bottom surface of the clamping groove joint. One side wall of the sliding sleeve clamping groove 072 is arranged along the axis, the upper part of the other side wall is arranged along the axis, and the lower clamping rod of the other side wall guides the slope 071; the lower part of the clamping rod guiding slope 071 is an inclined plane, the upper part is an arc-shaped surface, and two adjacent sliding sleeve clamping grooves form a sharp point II on the bottom surface of the sliding sleeve. The point I on the bottom surface of the clamping groove connector 3 is higher than the point II on the bottom surface of the sliding sleeve 7, the point I and the corresponding point II are staggered in the circumferential direction, and the clamping groove 032 and the corresponding sliding sleeve clamping groove 072 form a clamping rod hole. The top of the clamping rod joint 8 is provided with a plurality of clamping rods 081, and the axis of each clamping rod 081 is perpendicular to the axis of the inner pipe 9; the number of the clamping sticks 081 is the same as that of the clamping grooves 032 and is arranged corresponding to the clamping grooves, and the clamping sticks 081 corresponding to the clamping grooves 072 and the clamping grooves 032 are formed into clamping stick holes to be capable of being held tightly. The clamping rod joint 8 is connected with the inner pipe 9. The compression spring 4 presses the cylindrical pin 6 through the spring guide seat 5, so that the sliding sleeve 7 connected with the cylindrical pin is used for tightly closing the clamping groove 032 of the clamping groove connector 3.
The specific use method of the invention is as follows:
an inner tube assembly mounting step: under normal installation conditions, as shown in fig. 7, the main manipulator of the submarine drilling machine takes out the lower end of the inner tube assembly formed by the threaded connection of the inner tube 9 and the clamping rod joint 8 from the drilling tool warehouse, displaces the upper part of the rotary chuck of the submarine drilling machine, and enables the lower end of the inner tube assembly, the rotary chuck and the upper end of the inner tube assembly hooked by the fishing mechanism pulled by the steel wire rope to be positioned on the same axis, the rotary chuck moves upwards to clamp the inner tube 9, and the main manipulator is removed. Then, the upper end of the inner pipe assembly moves downwards axially by the steel wire rope traction salvaging mechanism until the right guiding slope 034 or the sliding sleeve guiding slope 071 of the clamping groove joint 3 contacts the clamping rod 081 of the clamping rod joint 8, and the downward movement is continued, and the clamping groove joint 3 is connected with the single-action assembly 2 to realize rotation, so that the clamping rod 081 moves to the position where the clamping groove 032 is communicated with the guiding groove along the right guiding slope 034 or the sliding sleeve guiding slope 071; continuously moving the upper end of the total layer of the inner pipe downwards so that the clamping rod 081 is lifted up by the sliding sleeve 7 under the pressure of the compression spring 4, then clamping the single-acting assembly 2 by the auxiliary mechanical arm of the submarine drilling machine, controlling the circumferential rotation of the single-acting assembly, rotating the clamping rod joint 8 into the clamping groove 032 by a certain angle by means of the rotating chuck of the submarine drilling machine, and keeping away from the end of the guiding groove, wherein the sliding sleeve 7 loses the radial pressure exerted by the clamping rod 081 and slides downwards under the reset action of the compression spring 4 so that the clamping groove 032 is tightly closed; the sliding sleeve clamping groove 072 and the clamping groove 032 form a clamping rod hole to limit the circumferential rotation of the clamping rod 081, so that the synchronous rotation of the inner pipe 9 and the single-action assembly 2 is realized, and the installation is completed.
In special cases, as shown in fig. 8, when the tip of the bottom of the sliding sleeve 7 just abuts against the clamping rod 081, the axial movement of the upper end of the inner tube assembly is kept, so that the clamping rod 081 abuts against the sliding sleeve 7, the clamping rod 081 contacts with the left guiding slope 033 of the clamping groove joint 3, moves to the position where the clamping groove 032 is communicated with the guiding groove along the left guiding slope 033, and the following process is consistent with the installation process.
The inner pipe assembly disassembling step: as shown in fig. 9, after the inner pipe assembly is fished out, the submarine drilling machine manipulator moves the inner pipe assembly above the submarine drilling machine rotating chuck, the rotating chuck moves upwards to clamp the inner pipe 9, and the main manipulator is removed; then, the sliding sleeve 7 of the bayonet type dismounting device is clamped by the auxiliary mechanical arm of the submarine drilling machine to slide upwards, so that the rotation restriction of the sliding sleeve clamping groove 072 of the sliding sleeve 7 to the clamping rod 081 is relieved, then the clamping rod connector 8 is driven to rotate by a certain angle to rotate out of the clamping groove 032 through the rotating chuck of the submarine drilling machine, and the clamping groove connector 3 is separated from the clamping rod connector 8, so that the dismounting is completed.
Claims (2)
1. The utility model provides a swift dismouting inner tube assembly of bayonet socket formula suitable for submarine drilling machine rope coring drilling tool, includes bullet card subassembly, single action subassembly, bayonet socket formula dismouting device and inner tube, bullet card subassembly be connected characterized by with single action subassembly: the bayonet type dismounting device comprises a clamping groove joint, a compression spring, a spring guide seat, a sliding sleeve and a clamping rod joint; the single-acting component is connected with the clamping groove connector through the inner pipe connector; the clamping groove joint and the inner pipe joint are respectively provided with a spring hole and a spring blind hole, and the spring holes are communicated with the spring blind holes and coaxial; one end of the compression spring is connected with the bottom of the spring blind hole, and the other end of the compression spring is connected with the spring guide seat; the clamping groove joint is provided with a long straight hole, and the length direction of the long straight hole is along the axial direction of the inner pipe; the sliding sleeve is sleeved on the clamping groove joint, a pin hole is formed in the sliding sleeve, a cylindrical pin is arranged in the pin hole, the axis of the cylindrical pin is perpendicular to the central line of the inner pipe, and the cylindrical pin penetrates through a long straight hole in the clamping groove joint; the spring guide seat is supported on the cylindrical pin; the bottom of the clamping groove joint is provided with a plurality of clamping grooves, and the bottom of the sliding sleeve is provided with a sliding sleeve clamping groove; the number of the sliding sleeve clamping grooves is the same as that of the clamping grooves and is arranged corresponding to the clamping grooves; the top of the clamping rod connector is provided with a plurality of clamping rods, and the axes of the clamping rods are perpendicular to the axis of the inner pipe; the number of the clamping sticks is the same as that of the clamping grooves and is arranged corresponding to the clamping grooves, and the sliding sleeve clamping grooves and the clamping grooves can hold the clamping sticks tightly; the clamping rod connector is connected with the inner pipe;
each clamping groove is provided with a clamping groove guide groove, the clamping groove guide grooves are communicated with one end of each clamping groove, and the two side walls of each clamping groove guide groove are respectively provided with a left guide slope and a right guide slope; the left guide slope and the right guide slope form an included angle with the axis of the clamping groove joint, and two adjacent clamping groove guide grooves form a sharp point I on the bottom surface of the clamping groove joint;
one side wall of the sliding sleeve clamping groove is arranged along the axis, the upper part of the other side wall is arranged along the axis, and the lower part of the other side wall is provided with a clamping rod guiding slope; the lower part of the clamping rod guiding slope is an inclined plane, the upper part is an arc-shaped surface, and two adjacent sliding sleeve clamping grooves form a sharp point II on the bottom surface of the sliding sleeve.
2. The bayonet-type quick-release inner tube assembly suitable for a rope coring drilling tool of a subsea drilling machine according to claim 1, wherein: the sharp point I on the bottom surface of the clamping groove joint is higher than the sharp point II on the bottom surface of the sliding sleeve, the sharp point I and the corresponding sharp point II are staggered in the circumferential direction, and the clamping groove and the corresponding sliding sleeve clamping groove form a clamping rod hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269270.2A CN112814600B (en) | 2021-03-12 | 2021-03-12 | Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269270.2A CN112814600B (en) | 2021-03-12 | 2021-03-12 | Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool |
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| Publication Number | Publication Date |
|---|---|
| CN112814600A CN112814600A (en) | 2021-05-18 |
| CN112814600B true CN112814600B (en) | 2024-04-12 |
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| CN202110269270.2A Active CN112814600B (en) | 2021-03-12 | 2021-03-12 | Bayonet type quick dismounting inner pipe assembly suitable for submarine drilling machine rope coring drilling tool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CZ2021520A3 (en) * | 2021-11-11 | 2023-01-25 | Area Four Industries ÄŚesko s.r.o. | Method of producing lattice construction elements and lattice construction |
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