CN209761374U - Submarine drilling rig rope coring and fishing system - Google Patents
Submarine drilling rig rope coring and fishing system Download PDFInfo
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- CN209761374U CN209761374U CN201920493550.XU CN201920493550U CN209761374U CN 209761374 U CN209761374 U CN 209761374U CN 201920493550 U CN201920493550 U CN 201920493550U CN 209761374 U CN209761374 U CN 209761374U
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Abstract
The utility model discloses a submarine drilling rig rope coring salvage system and method, which comprises a winch, a salvage rope, a power head frame and a fisher; the fisher comprises an outer sleeve, a plug cover, a mandrel, a spring and a fishing hook, wherein two ends of the outer sleeve are provided with openings, the plug cover is assembled in the opening at the top end of the outer sleeve, the middle part of the mandrel is provided with a shaft shoulder, the bottom end of the mandrel is provided with a conical head which can be clamped into the fishing hook, the top end of the mandrel penetrates through the plug cover and extends to the outer sleeve, the spring is sleeved outside the mandrel and positioned between the plug cover and the shaft shoulder, and the fishing hook is assembled at the bottom end of the shell; the power frame is provided with a through hole, the aperture of the through hole is between the outer diameter of the mandrel and the outer diameter of the plug cover, the winch is assembled on the power frame, the top end of the fishing rope is connected with the winch, and the bottom end of the fishing rope is connected with the top end of the mandrel after penetrating through the through hole. The core barrel is fished, lifted and released only by controlling the winch to be in different states, extra manual intervention is not needed, remote control operation is facilitated, and the core barrel can be well adapted to seabed coring.
Description
Technical Field
The utility model belongs to the core field is got to the rig rope, especially relates to a submarine drilling rig rope is got core and is salvaged system.
Background
The submarine drilling rig is important technical equipment for developing scientific research on marine geology and environment, and carrying out marine mineral resource exploration and submarine engineering geological exploration. In order to meet the requirement of continuously exploring deep sea resource scientific investigation, the drilling depth of the seabed core sampling drilling machine is deeper and deeper. For the core is got to the lifting drill, the rope is got the core and is retrieved the required a small amount of time of additional length of winch lifting rope, need not frequent tripping, therefore can improve the efficiency of getting the core, and the drilling depth is darker, and its save time's advantage is more obvious. The rope fishing system is the core mechanism of the rope coring. Due to the particularity of the working seabed environment of the submarine drilling rig, the submarine drilling rig can only implement operation in a remote control mode through optical cables, and the existing rope fishing system matured on land cannot be applied to the submarine drilling rig due to the problems that the structure is not compact enough, manual operation is needed, and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide a compact structure and be convenient for remote control operation's subsea drilling machine rope coring salvage system.
The utility model provides a submarine drilling rig rope coring and salvage system, which comprises a winch, a salvage rope, a power head frame and a fisher; the fisher comprises an outer sleeve, a plug cover, a mandrel, a spring and a fishing hook, wherein two ends of the outer sleeve are provided with openings, the plug cover is assembled in the opening at the top end of the outer sleeve, the middle part of the mandrel is provided with a shaft shoulder, the bottom end of the mandrel is provided with a conical head which can be clamped into the fishing hook, the top end of the mandrel penetrates through the plug cover and extends to the outer sleeve, the spring is sleeved outside the mandrel and positioned between the plug cover and the shaft shoulder, and the fishing hook is assembled at the bottom end of the shell; the power frame is provided with a through hole, the aperture of the through hole is between the outer diameter of the mandrel and the outer diameter of the plug cover, the winch is assembled on the power frame, the top end of the fishing rope is connected with the winch, and the bottom end of the fishing rope is connected with the top end of the mandrel after penetrating through the through hole.
In a specific embodiment, the outer sleeve is a cylindrical integral sleeve and comprises a small-diameter section, a conical section and a large-diameter section, wherein a pair of symmetrically arranged openings are arranged on the conical section and the large-diameter section, a pair of coaxially arranged positioning holes are arranged on the outer wall of the large-diameter section, and the central axes of the two positioning holes are perpendicular to the openings; the plug cover is detachably connected to the top end of the small-diameter section.
Preferably, the fishing hook comprises a positioning pin and a pair of hook bodies; the middle part of the hook body is provided with a mounting hole, the two ends of the hook body are provided with hook heads which are symmetrically arranged relative to the mounting hole, a pair of hook bodies are assembled on the positioning pin through the mounting hole and are arranged in an X shape, a reset spring is arranged between the hook bodies and the positioning pin, and the two hook heads on the same side are respectively enclosed into an upper bayonet and a lower bayonet; the fishing hook penetrates through the positioning hole through the positioning pin and is assembled below the outer sleeve.
Preferably, the conical head is sequentially a small-diameter head, a conical surface, a large-diameter head and a guide head from top to bottom, the diameter of the small-diameter head is smaller than the diameter of the bayonet, and the diameter of the large-diameter head is larger than the diameter of the bayonet.
In order to improve the connection stability, the mandrel is made into a whole piece, and the outer wall of the top of the mandrel is provided with a central hole for connecting a fishing rope.
In one embodiment, the power head frame includes a top plate, and the through hole is located at a center of the top plate.
The winch comprises a winding drum, a clutch, a power mechanism and a guide mechanism which are matched with each other; the clutch is arranged between the power mechanism and the winding drum, and the guide mechanism is arranged below the winding drum; the fishing rope is wound outside the winding drum, one end of the fishing rope is connected with the winding drum, and the other end of the fishing rope is connected with the mandrel after passing through the guide mechanism.
The utility model discloses assemble the winch on the unit head frame, the top of salvaging the rope links to each other with the winch, the bottom passes and links to each other with the top of dabber after through, whole compact structure. When the fishing device is put into use, an electromagnetic clutch in the winch is controlled to be disconnected firstly, so that the fisher freely falls down to fish the core barrel, the conical head extends into a fishing hook, and the fishing hook hooks a spearhead at the top end of the core barrel; then controlling a winch to retract a rope to lift the rock core pipe until the top end of the fisher is contacted with the power head frame; controlling the winch to continue to take up the rope, limiting the axial degree of freedom of the outer sleeve by the power head frame at the moment, continuously enabling the mandrel to go up to compress the spring, enabling the conical head to go up to extrude the fishing hook, enabling the spearhead to be separated from the fishing hook, and releasing the rock core pipe; the core barrel is fished, lifted and released only by controlling the winch to be in different states, extra manual intervention is not needed, remote control operation is facilitated, and the core barrel is well suitable for seabed coring.
Drawings
Fig. 1 is an axial view of a preferred embodiment of the present invention.
Fig. 2 is a schematic enlarged sectional view of the overshot in this embodiment. (salvaging core barrel state with salvaging device)
Fig. 3 is an enlarged schematic view of the axis of the outer casing of the overshot.
Fig. 4 is a schematic view showing the state of the overshot releasing the core barrel according to the preferred embodiment.
sequence numbers of the drawings:
1, a winch, 11, a winding drum, 12, a guide mechanism, 13, a clutch and 14, and a power mechanism;
2, fishing a rope;
3, a power head frame;
4-a fishing tool is arranged on the fishing tool,
41-outer sleeve, 411-opening, 412-positioning hole,
42-the plug cover,
43-mandrel, 431-conical head, A-small-diameter head, B-conical surface, C-large-diameter head and D-guide head,
44-a spring, which is provided with a spring,
45-fishing hook, 451-positioning pin, 452-hook body, 453-torsion spring;
5-core barrel, 51-spearhead.
Detailed Description
as shown in fig. 1, the utility model provides a this kind of seafloor drilling machine rope coring salvage system, it includes winch 1, salvage rope 2, unit head frame 3 and fisher 4.
The winch 1 comprises a winding drum 11, a guide mechanism 12, a clutch 13 and a power mechanism 14; the clutch 13 is an electromagnetic clutch, the power mechanism 14 is a speed-reducing underwater motor or a hydraulic motor, the electromagnetic clutch is arranged between the power mechanism 14 and the winding drum 11 and used for controlling whether the torque output by the power mechanism 14 is transmitted to the winding drum or not, when the electromagnetic clutch is in attraction, the power mechanism inputs power to drive the winding drum to rotate, when the power mechanism does not work, the winding drum is kept in a locking state by the electromagnetic clutch, the guide mechanism 12 is arranged below the winding drum, the top end of the fishing rope 2 is connected with the winding drum, the bottom end of the fishing rope penetrates through the guide mechanism, and the power head frame is connected with the.
The power frame 3 comprises a top plate, a through hole is formed in the center of the top plate, and the aperture of the through hole is between the outer diameter of the mandrel and the outer diameter of the plug cover.
As shown in fig. 2, the overshot 4 comprises an outer sleeve 41, a plug 42, a mandrel 43, a spring 44 and an overshot hook 45. As shown in fig. 3, the outer casing 41 is a cylindrical integral casing, and includes a small diameter section, a conical section and a large diameter section, a pair of symmetrically arranged openings 411 are provided on the conical section and the large diameter section, a coaxially arranged positioning hole 412 is provided on the outer wall of the large diameter section, and the central axes of the two positioning holes are perpendicular to the openings. The plug 42 is detachably attached to the tip of the small diameter section. The mandrel 43 is an integral piece, the middle part of the mandrel is provided with a shaft shoulder which divides the mandrel into an upper small-diameter section and a lower large-diameter section, and the outer wall of the small-diameter section is provided with an annular groove so as to be connected with the fishing rope 2; the bottom end of the large-diameter section is provided with a conical head 431, the conical head 431 is sequentially provided with a small-diameter head A, a conical surface B, a large-diameter head C and a guide head D from top to bottom, the diameter of the small-diameter head is smaller than the caliber of the bayonet, and the diameter of the large-diameter head is larger than the caliber of the bayonet. The spring 44 is sleeved outside the small diameter head, one end of the spring is contacted with the end face of the large diameter head, and the other end of the spring is contacted with the plug cover to realize the reset of the mandrel. As shown in fig. 2, the fishing hook 45 includes a positioning pin 451, a hook body 452, and a torsion spring 453; the middle part of the hook body is provided with a mounting hole, the two ends of the hook body are provided with hook heads which are symmetrically arranged relative to the mounting hole, a pair of hook bodies are assembled on the positioning pin through the mounting hole and are arranged in an X shape, a torsion spring is arranged between the hook bodies and the positioning pin for resetting, and the two hook heads on the same side respectively enclose an upper bayonet and a lower bayonet; the fishing hook is arranged in the opening of the outer sleeve, so that the positioning pin is assembled in the positioning hole.
After the embodiment is put into use, in the state of fishing out the core barrel, as shown in fig. 2, the axial top end of the outer sleeve of the fisher is not constrained, the fisher is in a free suspension state, the tension of the fishing rope mainly comes from the gravity of the fisher and the core barrel 5, the tension cannot overcome the initial reset force of the mandrel reset spring 44, the mandrel is in the lowest position under the action of the mandrel reset spring, the conical head completely enters the fishing hook at the moment, the contact position of the hook body of the fishing hook and the conical head of the mandrel is the small-diameter head A position, the fishing hook is in a tightening state under the action of the fishing hook reset spring, and the spearhead 51 on the upper part of the core barrel is fished.
in the core barrel releasing state, as shown in fig. 4, at this time, the upper end of the overshot jacket is connected with the power head frame, the upward stroke of the overshot jacket is restricted by the power head frame, at this time, the power mechanism continues to work, the fishing rope is furled, the tension of the fishing rope is increased until the tension overcomes the initial reset force of the mandrel reset spring 44, the overshot mandrel is pulled to move upward relative to the jacket, the conical surface B of the mandrel conical head pushes the hook body of the fishing hook to be opened in the upward process, meanwhile, the reset spring is continuously compressed in the upward process of the mandrel, the reset force of the spring is continuously increased until the reset force of the spring is balanced with the tension of the fishing rope, at this time, the overshot mandrel has moved upward to the uppermost position, the large-diameter head C of the mandrel conical head is contacted with the hook body, the fishing hook body is forced to be continuously in the opened state.
After the rock core pipe is separated from the fishing hook body, the tension of the fishing rope is released, the mandrel descends towards the outer sleeve under the reset force of the mandrel reset spring, the conical head of the guide head D is convenient to enter the fishing hook, the conical head of the mandrel descends to the small-diameter head A to be in contact with the fishing hook body, and the hook body is tightened under the action of the torsion spring.
The utility model provides an utilize above-mentioned salvage system to carry out salvage method for the instrument, including following step:
step one, fishing the core pipe, controlling an electromagnetic clutch in a winch to be disconnected, separating a winding drum from a power mechanism, enabling a fisher to fall freely, enabling a conical head to move to a small-diameter head and enter a fishing hook, and enabling the fishing hook to hook a spearhead at the top end of the core pipe;
Lifting the core tube, controlling the electromagnetic clutch to be closed, driving the winding drum to rotate by the power mechanism through the clutch, collecting the fishing rope by the winding drum in a rotating mode, lifting the fisher and the core tube through the fishing rope until the fisher enters the power head frame, and enabling the top end of the fisher to be in contact with a top plate of the power head frame;
and step three, releasing the core barrel, controlling the winch to continue to retract the rope, limiting the axial freedom degree of the fisher outer sleeve by the power head frame, enabling the mandrel to pass through the through hole of the top plate to continue to move upwards and compress the spring, enabling the conical head to move upwards, extruding the fishing hook by the conical surface until the large-diameter head is contacted with the hook body, enabling the fishing hook to be in an open state, and enabling the spearhead to be separated from the fishing hook.
This embodiment only needs disconnection, the actuation through control electromagnetic clutch after putting into service to whether control power unit works, control the winch promptly and be in different operating condition and can accomplish fishing for, promotion and the release of core barrel, and need not to carry out extra manual intervention, be convenient for carry out remote control, can be fine be applicable to the seabed and get core.
Claims (7)
1. The utility model provides a submarine drilling rig wire line core fishing system which characterized in that: the fishing device comprises a winch, a fishing rope, a power head frame and a fisher;
The fisher comprises an outer sleeve, a plug cover, a mandrel, a spring and a fishing hook, wherein two ends of the outer sleeve are provided with openings, the plug cover is assembled in the opening at the top end of the outer sleeve, the middle part of the mandrel is provided with a shaft shoulder, the bottom end of the mandrel is provided with a conical head which can be clamped into the fishing hook, the top end of the mandrel penetrates through the plug cover and extends to the outer sleeve, the spring is sleeved outside the mandrel and positioned between the plug cover and the shaft shoulder, and the fishing hook is assembled at the bottom end of the shell;
The power frame is provided with a through hole, the aperture of the through hole is between the outer diameter of the mandrel and the outer diameter of the plug cover, the winch is assembled on the power frame, the top end of the fishing rope is connected with the winch, and the bottom end of the fishing rope is connected with the top end of the mandrel after penetrating through the through hole.
2. The seafloor drilling rig wire line coring fishing system of claim 1, wherein: the outer sleeve is a cylindrical integral sleeve and comprises a small-diameter section, a conical section and a large-diameter section, the conical section and the large-diameter section are provided with a pair of symmetrically arranged openings, the outer wall of the large-diameter section is provided with a pair of coaxially arranged positioning holes, and the central axes of the two positioning holes are vertical to the openings; the plug cover is detachably connected to the top end of the small-diameter section.
3. The seafloor drilling rig wire line coring fishing system of claim 2, wherein: the fishing hook comprises a positioning pin and a pair of hook bodies; the middle part of the hook body is provided with a mounting hole, the two ends of the hook body are provided with hook heads which are symmetrically arranged relative to the mounting hole, a pair of hook bodies are assembled on the positioning pin through the mounting hole and are arranged in an X shape, a reset spring is arranged between the hook bodies and the positioning pin, and the two hook heads on the same side are respectively enclosed into an upper bayonet and a lower bayonet; the fishing hook penetrates through the positioning hole through the positioning pin and is assembled below the outer sleeve.
4. a seafloor drilling rig line coring fishing system as claimed in claim 3, wherein: the conical head is sequentially provided with a small-diameter head, a conical surface, a large-diameter head and a guide head from top to bottom, the diameter of the small-diameter head is smaller than the caliber of the bayonet, and the diameter of the large-diameter head is larger than the caliber of the bayonet.
5. The seafloor drilling rig wire line coring fishing system of claim 1, wherein: the mandrel is an integral piece, and the outer wall of the top of the mandrel is provided with a central hole for connecting a fishing rope.
6. the seafloor drilling rig wire line coring fishing system of claim 1, wherein: the power head frame comprises a top plate, and the through hole is located in the center of the top plate.
7. the seafloor drilling rig wire line coring fishing system of claim 6, wherein: the winch comprises a winding drum, a clutch, a power mechanism and a guide mechanism; the clutch is arranged between the power mechanism and the winding drum, and the guide mechanism is arranged below the winding drum; the fishing rope is wound outside the winding drum, one end of the fishing rope is connected with the winding drum, and the other end of the fishing rope is connected with the mandrel after passing through the guide mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493550.XU CN209761374U (en) | 2019-04-12 | 2019-04-12 | Submarine drilling rig rope coring and fishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920493550.XU CN209761374U (en) | 2019-04-12 | 2019-04-12 | Submarine drilling rig rope coring and fishing system |
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| CN209761374U true CN209761374U (en) | 2019-12-10 |
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| CN201920493550.XU Active CN209761374U (en) | 2019-04-12 | 2019-04-12 | Submarine drilling rig rope coring and fishing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826579A (en) * | 2019-04-12 | 2019-05-31 | 长沙矿山研究院有限责任公司 | A kind of seabed drilling machine wire line coring salvaging system and method |
-
2019
- 2019-04-12 CN CN201920493550.XU patent/CN209761374U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826579A (en) * | 2019-04-12 | 2019-05-31 | 长沙矿山研究院有限责任公司 | A kind of seabed drilling machine wire line coring salvaging system and method |
| CN109826579B (en) * | 2019-04-12 | 2023-09-19 | 长沙矿山研究院有限责任公司 | Submarine drilling machine rope coring salvaging system and method |
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