CN109027426B - Method for improving connection reliability of high-pressure mud pipe of ultra-deep water drilling ship - Google Patents
Method for improving connection reliability of high-pressure mud pipe of ultra-deep water drilling ship Download PDFInfo
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- CN109027426B CN109027426B CN201810989362.6A CN201810989362A CN109027426B CN 109027426 B CN109027426 B CN 109027426B CN 201810989362 A CN201810989362 A CN 201810989362A CN 109027426 B CN109027426 B CN 109027426B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention relates to the technical field of drilling ships, in particular to a method for improving the connection reliability of a high-pressure mud pipe of an ultra-deep water drilling ship, which comprises the following steps: s1, connecting the connecting part of the mud pipe and the drilling ship through a special fastener; and S2, on the basis of S1, installing a 3PRS parallel mechanism at the bottom of the drilling ship, wherein a base of the 3PRS parallel mechanism is fixedly connected with the ship body, a movable end part of the 3PRS parallel mechanism is connected with a mud pipe, and the 3PRS parallel mechanism is used for reducing the position deviation between the fixed part and the movable part of the mud pipe and the drilling ship. The invention adopts the special fastener for fixing, and simultaneously cooperates with the 3PRS parallel mechanism to adjust the movable part of the mud pipe, so as to reduce the deviation between the fixed part and the movable part of the mud pipe.
Description
Technical Field
The invention relates to the technical field of drilling ships, in particular to a method for improving the connection reliability of a high-pressure mud pipe of an ultra-deep water drilling ship.
Background
The drilling vessel is a floating vessel type drilling platform, which is usually a motor ship or barge on which the drilling equipment is arranged. The platform is positioned by means of anchoring or dynamic positioning systems. The hull of the floating ship type drilling device floats on the sea surface and is easily influenced by waves. The displacement of the drilling ship varies from thousands of tons to tens of thousands of tons, and the drilling ship not only has the ship type and self-navigation capability of a common ship, but also can float on the sea surface for petroleum drilling.
When the high-pressure mud pipe is arranged on a drilling ship to extract oil, the oil moves rapidly inside the mud pipe, so that the mud pipe shakes up and down on the drilling ship, and the high-pressure mud pipe falls off from the drilling ship; the mud pipe is completely fixed on the drilling ship, so that the deformation of the fixed part and the movable part of the mud pipe is large, and the mud pipe is easy to damage.
Disclosure of Invention
Aiming at the technical problems in the background art, the invention adopts the special fastener for fixing, and simultaneously cooperates with the 3PRS parallel mechanism to adjust the movable part of the mud pipe, so as to reduce the deviation between the fixed part and the movable part of the mud pipe.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for improving the connection reliability of a high-pressure mud pipe of an ultra-deep water drilling ship comprises the following steps:
s1, connecting the connecting part of the mud pipe and the drilling ship through a special fastener;
s2, on the basis of S1, a 3PRS parallel mechanism is installed at the bottom of the drilling ship, a base of the 3PRS parallel mechanism is fixedly connected with a ship body, a movable end part of the 3PRS parallel mechanism is connected with a mud pipe, and the 3PRS parallel mechanism is used for reducing the position deviation between a fixed part and a movable part of the mud pipe and the drilling ship, so that the mud pipe is prevented from being deformed excessively and damaged; the technical application of the 3PRS parallel mechanism is mature and is not described in detail again.
The special fastener adopted in the method comprises a mounting plate, a first fixing mechanism, a second fixing mechanism, a damping mechanism, a supporting mechanism, a limiting mechanism, a resetting mechanism, a rotating mechanism and a connecting mechanism; the side wall of the mounting plate is equidistantly provided with the first fixing mechanisms for fixing the mud pipes, and the inner parts of the first fixing mechanisms are slidably connected with the second fixing mechanisms with elasticity; the supporting mechanism is arranged inside the second fixing mechanism, and the connecting mechanism is rotatably connected inside the second fixing mechanism; the inner part of the first fixing mechanism is connected with a plurality of damping mechanisms for reducing the vibration amplitude of the mud pipe in a sliding manner, the resetting mechanism is arranged in the damping mechanisms, and the resetting mechanism abuts against the damping mechanisms; the inside of damper rotates to be connected stop gear, just stop gear block damper, stop gear's inside equidistance installation slewing mechanism.
Specifically, the first fixing mechanism comprises a first fixing plate, a fixing block and a second fixing plate, wherein the side wall of the mounting plate is equidistantly provided with the first fixing plate with an arc-shaped side wall, and the side wall of the first fixing plate is rotatably connected with the second fixing plate with an arc-shaped side wall; the fixed block is installed at one end of the second fixed plate and connected with the first fixed plate through bolts, so that the second fixed plate can be rotated conveniently, the first fixed plate is opened, and a mud pipe is placed in the first fixed plate.
Specifically, the second fixing mechanism comprises a screw rod, a knob, a connecting sleeve, a first baffle and a second baffle, the side wall of the second fixing plate is in threaded connection with the screw rod, and one end of the screw rod is provided with the cross-shaped knob; one end of the screw rod is rotatably connected with the connecting sleeve, the side wall of the connecting sleeve is rotatably connected with the first baffle plate, the side wall of the connecting sleeve is arc-shaped, one end of the first baffle plate is rotatably connected with the second baffle plate respectively, and the first baffle plate and the second baffle plate are driven by the screw rod to move in the second fixing plate in order to facilitate rotation, so that the first baffle plate and the second baffle plate are abutted against the slurry pipe to fix the slurry pipe in the first fixing mechanism.
Specifically, the supporting mechanism comprises a supporting frame, a supporting plate and a fixing rod, the side walls of two ends of the connecting sleeve are fixedly connected with the triangular supporting plate, one end of the elastic fixing rod is rotatably connected with the supporting frame, and the other end of the fixing rod is rotatably connected with the inner side wall of the second fixing plate; the supporting mechanism is characterized in that an I-shaped supporting frame is arranged at one end of the supporting plate, two ends of the supporting frame are respectively connected with the first baffle and the second baffle, and the first baffle and the second baffle are tightly attached to a mud pipe in order to fix the first baffle and the second baffle through the supporting mechanism.
Specifically, coupling mechanism includes connecting block and connecting rod, the one end installation of screw rod is conical the connecting block, the lateral wall installation of connecting block the connecting rod, the lateral wall is curved the connecting rod is contradicted the inside wall of adapter sleeve, just the connecting block with the connecting rod with the inside of adapter sleeve is rotated and is connected, and for convenience the screw rod drives the connecting block is in the inside of adapter sleeve is rotated, is about to the screw rod is fixed, reduces again resistance when the screw rod rotates.
Specifically, the damping mechanism comprises a sliding groove, a gear, saw teeth, a supporting rod and a fixed ball, the T-shaped sliding groove is arranged on the inner side of the first fixed plate at equal intervals, the saw teeth, the supporting rod and the fixed ball are connected with the sliding groove in a sliding mode, the fixed ball is installed at one end of the supporting rod, and the saw teeth distributed at equal intervals are arranged on the side wall of the supporting rod; the inside of spout rotates to be connected the gear, just gear engagement the sawtooth is in order to drive when the mud pipe rocks the fixed ball with the bracing piece is in the inside motion of spout makes the bracing piece lateral wall the sawtooth promotes gear revolve, with mud pipe transmission energy conversion who comes for kinetic energy when gear revolve to reduce mud pipe and rock the degree.
Specifically, the reset mechanism comprises a spring and a supporting block, the other end of the supporting rod is fixedly connected with the supporting block, the spring is installed between the supporting block and the bottom end of the sliding groove, the supporting block is in sliding connection with the inside of the sliding groove, and the spring abuts against the supporting block conveniently, so that the damping mechanism is tightly attached to the mud pipe.
Specifically, the limiting mechanism comprises a roller and a limiting plate, the inside of the chute is rotatably connected with the roller, and the limiting plate with an arc-shaped side wall is arranged on the side wall of the roller at equal intervals; the gear block the limiting plate, just the lateral wall conflict crooked direction of sawtooth with sawtooth moving direction is opposite the limiting plate, for convenient during the sawtooth motion, the limiting plate is contradicted the sawtooth to increase frictional force when the sawtooth moves makes the mud pipe is hugged closely to the bracing piece.
Specifically, the rotating mechanism comprises a rotating shaft, a fixed sleeve and a torsion spring, the bottom end of the limiting plate is fixedly connected with the fixed sleeve, the connecting part of the roller and the limiting plate is fixedly connected with the rotating shaft, and the side walls of the rotating shaft are symmetrically and rotatably connected with the fixed sleeve; the lateral wall installation of pivot torsion spring, just torsion spring's both ends are connected respectively the lateral wall of fixed cover, for the convenience the limiting plate drives fixed cover is in the lateral wall of pivot rotates to make torsion spring is last strong, works as the limiting plate with when the sawtooth separates, torsion spring promotes limiting plate antiport makes the limiting plate resets.
The invention has the beneficial effects that:
1. the invention adopts the special fastener for fixing, and simultaneously cooperates with the 3PRS parallel mechanism to adjust the movable part of the mud pipe, so as to reduce the deviation between the fixed part and the movable part of the mud pipe.
2. According to the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the mounting plate is fixed on the side wall of the drilling ship, a plurality of first fixing mechanisms are equidistantly mounted on the side wall of the mounting plate, second fixing mechanisms are mounted inside the first fixing mechanisms, the mud pipe is fixed inside the first fixing mechanisms, the second elastic fixing mechanisms specifically abut against the mud pipe to fix the mud pipe again, and the mud pipe is prevented from shaking inside the first fixing mechanisms.
3. According to the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the damping mechanisms are equidistantly arranged in the first fixing mechanism and are connected with the resetting mechanism, the mud pipe is in contact with the damping mechanisms, the mud pipe transmits vibration force to the damping mechanisms, the damping mechanisms convert and offset the vibration force, and the vibration amplitude of the mud pipe is reduced.
4. According to the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the limiting mechanism is arranged inside the damping mechanism and abuts against the damping mechanism, so that the resistance of the damping mechanism during movement is increased, the damping mechanism tightly abuts against the mud pipe, and the vibration intensity of the mud pipe is reduced again.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a special fastener used in the method;
FIG. 2 is a schematic view of the internal structure of the second fixing mechanism shown in FIG. 1;
FIG. 3 is a schematic view of the internal structure of the shock absorbing mechanism shown in FIG. 1;
fig. 4 is a schematic view of the internal structure of the limiting plate shown in fig. 3.
In the figure: 1. the mounting panel, 2, first fixed establishment, 21, first fixed plate, 22, the fixed block, 23, the second fixed plate, 3, the second fixed establishment, 31, the screw rod, 32, the knob, 33, the adapter sleeve, 34, first baffle, 35, the second baffle, 4, damper, 41, the spout, 42, the gear, 43, the sawtooth, 44, the bracing piece, 45, the fixed ball, 5, the supporting mechanism, 51, the support frame, 52, the backup pad, 53, the dead lever, 6, stop gear, 61, the cylinder, 62, the limiting plate, 7, the canceling release mechanical system, 71, the spring, 72, the supporting shoe, 8, slewing mechanism, 81, the pivot, 82, the adapter sleeve, 83, torsion spring, 9, coupling mechanism, 91, the connecting block, 92, the connecting rod.
Detailed Description
In order to make the technical method, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1, the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship comprises the following steps:
s1, connecting the connecting part of the mud pipe and the drilling ship through a special fastener;
s2, on the basis of S1, a 3PRS parallel mechanism is installed at the bottom of the drilling ship, a base of the 3PRS parallel mechanism is fixedly connected with a ship body, a movable end part of the 3PRS parallel mechanism is connected with a mud pipe, and the 3PRS parallel mechanism is used for reducing the position deviation between a fixed part and a movable part of the mud pipe and the drilling ship, so that the mud pipe is prevented from being deformed excessively and damaged;
the special fastener adopted in the method comprises a mounting plate 1, a first fixing mechanism 2, a second fixing mechanism 3, a damping mechanism 4, a supporting mechanism 5, a limiting mechanism 6, a resetting mechanism 7, a rotating mechanism 8 and a connecting mechanism 9; the side wall of the mounting plate 1 is equidistantly provided with the first fixing mechanisms 2 for fixing the mud pipes, and the inner parts of the first fixing mechanisms are slidably connected with the second fixing mechanisms 3 with elasticity; the supporting mechanism 5 is arranged inside the second fixing mechanism 3, and the connecting mechanism 9 is rotatably connected inside the second fixing mechanism 3; the inside of the first fixing mechanism 2 is slidably connected with a plurality of damping mechanisms 4 for reducing the vibration amplitude of the mud pipe, the resetting mechanism 7 is installed inside the damping mechanisms 4, and the resetting mechanism 7 abuts against the damping mechanisms 4; the inside of damper 4 rotates to be connected stop gear 6, just 6 blocks of stop gear damper 4, the inside equidistance installation of stop gear 6 slewing mechanism 8.
Specifically, as shown in fig. 1, the first fixing mechanism 2 of the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship comprises a first fixing plate 21, a fixing block 22 and a second fixing plate 23, wherein the first fixing plate 21 with an arc-shaped side wall is equidistantly installed on the side wall of the mounting plate 1, and the side wall of the first fixing plate 21 is rotatably connected with the second fixing plate 23 with an arc-shaped side wall; the fixing block 22 is installed at one end of the second fixing plate 23, the fixing block 22 is connected to the first fixing plate 21 through a bolt, and in order to rotate the second fixing plate 23, the first fixing plate 21 is opened, and a mud pipe is placed inside the first fixing plate 21.
Specifically, as shown in fig. 1 and 2, the second fixing mechanism 3 of the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship according to the present invention includes a screw 31, a knob 32, a connecting sleeve 33, a first baffle 34 and a second baffle 35, the side wall of the second fixing plate 23 is in threaded connection with the screw 31, and one end of the screw 31 is provided with the cross-shaped knob 32; one end of the screw 31 is rotatably connected with the connecting sleeve 33, the side wall of the connecting sleeve 33 is rotatably connected with the side wall in an arc shape, the first baffle 34 is rotatably connected with one end of the second baffle 35, the screw 31 drives the first baffle 34 and the second baffle 35 to move in the second fixing plate 23 in order to facilitate rotation, so that the first baffle 34 and the second baffle 35 are abutted against the slurry pipe, and the slurry pipe is fixed in the first fixing mechanism 2.
Specifically, as shown in fig. 2, the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship according to the present invention includes that the supporting mechanism 5 includes a supporting frame 51, a supporting plate 52 and a fixing rod 53, the side walls of the two ends of the connecting sleeve 33 are fixedly connected to the triangular supporting plate 52, one end of the elastic fixing rod 53 is rotatably connected to the supporting frame 51, and the other end of the fixing rod 53 is rotatably connected to the inner side wall of the second fixing plate 23; the supporting frame 51 is mounted at one end of the supporting plate 52, the two ends of the supporting frame 51 are respectively connected with the first baffle 34 and the second baffle 35, and in order to fix the first baffle 34 and the second baffle 35 by the supporting mechanism 5, the first baffle 34 and the second baffle 35 are tightly attached to the mud pipe.
Specifically, as shown in fig. 2, in the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the connection mechanism 9 includes a connection block 91 and a connection rod 92, the conical connection block 91 is installed at one end of the screw 31, the connection rod 92 is installed on the side wall of the connection block 91, the connection rod 92 with the arc-shaped side wall abuts against the inner side wall of the connection sleeve 33, and the connection block 91 and the connection rod 92 are rotatably connected with the inside of the connection sleeve 33, so that the screw 31 drives the connection block 91 to rotate inside the connection sleeve 33, that is, the screw 31 is fixed, and the resistance when the screw 31 rotates is reduced.
Specifically, as shown in fig. 1 and 2, the damping mechanism 4 of the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship according to the present invention includes a sliding groove 41, a gear 42, saw teeth 43, a supporting rod 44 and fixing balls 45, the sliding groove 41 is equidistantly formed in the inner side of the first fixing plate 21 in a "T" shape, the saw teeth 43, the supporting rod 44 and the fixing balls 45 are slidably connected to the inside of the sliding groove 41, the fixing balls 45 are mounted at one end of the supporting rod 44, and the saw teeth 43 are equidistantly distributed on the side wall of the supporting rod 44; the inside of the chute 41 is rotatably connected with the gear 42, and the gear 42 is meshed with the saw teeth 43, so that when the mud pipe shakes, the fixed ball 45 and the support rod 44 are driven to move inside the chute 41, the saw teeth 43 on the side wall of the support rod 44 push the gear 42 to rotate, the energy transmitted by the mud pipe is converted into the kinetic energy when the gear 42 rotates, and the shaking degree of the mud pipe is reduced.
Specifically, as shown in fig. 2, in the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the reset mechanism 7 includes a spring 71 and a support block 72, the other end of the support rod 44 is fixedly connected to the support block 72, the spring 71 is installed between the support block 72 and the bottom end of the chute 41, and the support block 72 is slidably connected to the inside of the chute 41, so that the spring 71 abuts against the support block 72 conveniently, and the damping mechanism 4 is tightly attached to the mud pipe.
Specifically, as shown in fig. 2 and 4, according to the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the limiting mechanism 6 comprises a roller 61 and a limiting plate 62, the roller 61 is rotatably connected to the inside of the chute 41, and the limiting plates 62 with arc-shaped side walls are equidistantly mounted on the side walls of the roller 61; the gear 42 is clamped with the limiting plate 62, the side wall of the sawtooth 43 is abutted against the limiting plate 62 with the bending direction opposite to the movement direction of the sawtooth 43, and in order to facilitate the movement of the sawtooth 43, the limiting plate 62 is abutted against the sawtooth 43, so that the friction force generated when the sawtooth 43 moves is increased, and the support rod 44 is tightly attached to the mud pipe.
Specifically, as shown in fig. 4, in the method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship, the rotating mechanism 8 includes a rotating shaft 81, a fixing sleeve 82 and a torsion spring 83, the bottom end of the limiting plate 62 is fixedly connected to the fixing sleeve 82, the connecting part of the roller 61 and the limiting plate 62 is fixedly connected to the rotating shaft 81, and the side wall of the rotating shaft 81 is symmetrically and rotatably connected to the fixing sleeve 82; the side wall of the rotating shaft 81 is provided with the torsion spring 83, and two ends of the torsion spring 83 are respectively connected with the side wall of the fixed sleeve 82, so that the limiting plate 62 drives the fixed sleeve 82 to rotate on the side wall of the rotating shaft 81, and the torsion spring 83 is forced, and when the limiting plate 62 is separated from the saw teeth 43, the torsion spring 83 pushes the limiting plate 62 to rotate in the opposite direction, so that the limiting plate 62 is reset.
The mounting plate 1 is fixed to the sidewall of the drill ship, the screws on the sidewall of the fixing block 22 are removed, and then the second fixing plate 23 is rotated to open the inside of the first fixing plate 21.
(1) The mud pipe is placed in the first fixing plate 21, the second fixing plate 23 is rotated, the mud pipe is wrapped in the first fixing plate 21, the fixing block 22 on the side wall of the second fixing plate 23 is attached to the side wall of the first fixing plate 21, the fixing block 22 is fixed on the side wall of the first fixing plate 21 through screws, the second fixing plate 23 is fixed on the side wall of the first fixing plate 21, and the mud pipe is fixed between the first fixing plate 21 and the second fixing plate 23.
(2) The cross-shaped knob 32 is rotated to enable the screw rod 31 to rotate inside the second fixing plate 23, the screw rod 31 drives the connecting block 91 to rotate inside the connecting sleeve 33, the connecting block 91 drives the connecting block 92 to rotate inside the connecting sleeve 33, one end of the screw rod 31 is fixed inside the connecting sleeve 33, friction force generated when the screw rod 31 rotates is reduced, the distance between the movement of the connecting sleeve 33 and the second fixing plate 23 is increased, the fixing rod 53 is slowly straightened, the fixing rod 53 is connected with the supporting plate 52, the supporting plate 52 is fixed by the fixing rod 52, and the screw rod 31 pushes the connecting sleeve 33 to linearly move inside the second fixing plate 23; the connecting sleeve 33 pushes the first baffle 34 and the second baffle 35 to move in the first fixing plate 21, so that the first baffle 34 and the second baffle 35 are in contact with the mud pump, the first baffle 34 and the second baffle 35 extrude the mud pipe, the first baffle 34 and the second baffle 35 rotate, the first baffle 34 and the second baffle 35 are made to cling to the side wall of the mud pipe, the first baffle 34 and the second baffle 35 are fixed by the I-shaped supporting frame 52, the first baffle 34 and the second baffle 35 are fixed on the side wall of the mud pipe, the mud pipe is fixed again, and the mud pipe is fixed on the drilling ship.
(3) In the process of using the mud pipe, the oil rapidly moves in the mud pipe, so that the side wall of the mud pipe shakes inside the first fixing plate 21 and the second fixing plate 23, the mud pipe presses the fixing ball 45 in the first fixing plate 21 in the shaking process, the fixing ball 45 enters the chute 41, the fixing ball 45 pushes the support rod 44 and the support block 72 to move in the chute 41, and the support block 72 moves to compress the spring 71 in the chute 41; the support rod 44 moves to drive the saw teeth 43 to move, so that the saw teeth 43 drive the gear 43 to move in the chute 41, the force transmitted by the mud pipe is converted into kinetic energy, and the shaking degree of the mud pipe is reduced.
(4) In the rotating process of the gear 43, the gear 43 contacts with the limit plates 62 with arc-shaped side walls, the roller 61 and the limit plates 62 are pushed to rotate, one of the limit plates 62 contacts with the saw teeth 43, the side walls of the saw teeth 43 abut against the limit plate 62 with the bending direction opposite to the moving direction of the saw teeth 43, the arc-shaped limit plate 62 abuts against the saw teeth 43, the friction force generated when the saw teeth 43 move is increased, the force transmitted by a mud pipe is counteracted, the saw teeth 43 and the limit plates 62 are mutually extruded, the limit plates 62 drive the connecting sleeve 82 to rotate on the side walls of the rotating shaft 81, the connecting sleeve 82 rotates to enable the torsion spring 83 arranged on the side walls of the rotating shaft 81 to be stressed, the rotating direction of the limit plates 62 is opposite to the bending direction of the limit plates 62, the saw teeth 43 cling to the side walls of the limit plates 62 to slide, the friction force between, when the position-limiting plate 62 is separated from the saw teeth 43, the torsion spring 83 drives the connecting sleeve 82 to rotate in the opposite direction, so that the position-limiting plate 62 rotates in the opposite direction and returns.
(5) After the mud pipe is separated from the fixed ball 45, the spring 71 pushes the supporting block 72 and the supporting rod 44 to move in the chute 41, so that the fixed ball 45 slides out of the chute 41, the supporting rod 44 drives the saw teeth 42 to move, the saw teeth 42 push the gear 42 to move in the opposite direction, the moving speed of the saw teeth 42 is reduced, the saw teeth 42 extrude the limiting plate 62 to rotate on the side wall of the roller 61, the moving direction of the limiting plate 62 is opposite to the bending direction of the limiting plate 62, the torsion spring 83 is driven to be energized, meanwhile, the saw teeth 42 slide through the side wall of the limiting plate 62, and the friction force between the saw teeth 42 and the limiting plate 62; after the saw teeth 42 are separated from the limit plate 62, the torsion spring 83 drives the limit plate 62 to rotate in the opposite direction to reset, and meanwhile, the saw teeth 42 slide in the sliding groove 41, so that the fixing balls 45 slide out of the tight mud pipe from the inside of the sliding groove 41, and the shaking degree of the mud pipe is reduced.
According to the side wall fixing mounting plate 1 of the drilling ship, the side wall of the mounting plate 1 is equidistantly provided with the plurality of first fixing mechanisms 2, the second fixing mechanisms 3 are arranged inside the first fixing mechanisms 2, the mud pipe is fixed inside the first fixing mechanisms 2, the elastic second fixing mechanisms 3 specifically abut against the mud pipe to fix the mud pipe again, and the mud pipe is prevented from shaking inside the first fixing mechanisms 2. The damping mechanism 4 is installed to the inside equidistance of first fixed establishment 2, and the canceling release mechanical system 7 is connected to the damping mechanism 4, and the mud pipe keeps the contact with damping mechanism 4, and the mud pipe transmits the vibrations power for damping mechanism 4, and damping mechanism 4 offsets the vibrations power conversion, reduces mud pipe vibration range. Damper 4's internally mounted stop gear 6, stop gear 6 conflict damper 4, resistance when increase damper 4 moves to make the inseparable mud pipe of contradicting of damper 4, reduce the shock strength of mud pipe once more.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A method for improving the connection reliability of a high-pressure mud pipe of an ultra-deep water drilling ship is characterized by comprising the following steps:
s1, connecting the connecting part of the mud pipe and the drilling ship through a special fastener;
s2, on the basis of S1, a 3PRS parallel mechanism is installed at the bottom of the drilling ship, a base of the 3PRS parallel mechanism is fixedly connected with a ship body, a movable end part of the 3PRS parallel mechanism is connected with a mud pipe, and the 3PRS parallel mechanism is used for reducing the position deviation between a fixed part and a movable part of the mud pipe and the drilling ship, so that the mud pipe is prevented from being deformed excessively and damaged;
the special fastener adopted in the method comprises a mounting plate (1), a first fixing mechanism (2), a second fixing mechanism (3), a damping mechanism (4), a supporting mechanism (5), a limiting mechanism (6), a resetting mechanism (7), a rotating mechanism (8) and a connecting mechanism (9); the side wall of the mounting plate (1) is equidistantly provided with the first fixing mechanisms (2) for fixing the mud pipes, and the inner parts of the first fixing mechanisms are slidably connected with the second fixing mechanisms (3) with elasticity; the supporting mechanism (5) is arranged inside the second fixing mechanism (3), and the connecting mechanism (9) is rotatably connected inside the second fixing mechanism (3); the inner part of the first fixing mechanism (2) is connected with a plurality of damping mechanisms (4) for reducing the vibration amplitude of the mud pipe in a sliding manner, the resetting mechanism (7) is installed in the damping mechanisms (4), and the resetting mechanism (7) is abutted against the damping mechanisms (4); the inner part of the damping mechanism (4) is rotatably connected with the limiting mechanism (6), the limiting mechanism (6) is clamped with the damping mechanism (4), and the rotating mechanisms (8) are arranged in the limiting mechanism (6) at equal intervals;
the damping mechanism (4) comprises a sliding groove (41), a gear (42), saw teeth (43), a supporting rod (44) and a fixing ball (45), the T-shaped sliding groove (41) is arranged on the inner side of the first fixing plate (21) at equal intervals, the saw teeth (43), the supporting rod (44) and the fixing ball (45) are connected to the inside of the sliding groove (41) in a sliding mode, the fixing ball (45) is installed at one end of the supporting rod (44), and the saw teeth (43) distributed at equal intervals are arranged on the side wall of the supporting rod (44) where the supporting rod is located; the inner part of the sliding chute (41) is rotationally connected with the gear (42), and the gear (42) is meshed with the saw teeth (43);
the limiting mechanism (6) comprises a roller (61) and a limiting plate (62), the inside of the sliding chute (41) is rotatably connected with the roller (61), and the limiting plate (62) with arc-shaped side walls is arranged on the side wall of the roller (61) at equal intervals; the gear (42) is clamped with the limiting plate (62), the side wall of the sawtooth (43) is abutted against the limiting plate (62) with the bending direction opposite to the movement direction of the sawtooth (43), the first fixing mechanism (2) comprises a first fixing plate (21), a fixing block (22) and a second fixing plate (23), the first fixing plate (21) with the arc-shaped side wall is installed on the side wall of the mounting plate (1) at equal intervals, and the side wall of the first fixing plate (21) is rotatably connected with the second fixing plate (23) with the arc-shaped side wall; the fixing block (22) is installed at one end of the second fixing plate (23), the fixing block (22) is connected with the first fixing plate (21) through a bolt, the second fixing mechanism (3) comprises a screw rod (31), a knob (32), a connecting sleeve (33), a first baffle plate (34) and a second baffle plate (35), the side wall of the second fixing plate (23) is in threaded connection with the screw rod (31), and the cross-shaped knob (32) is installed at one end of the screw rod (31); one end of the screw rod (31) is rotatably connected with the connecting sleeve (33), the side wall of the connecting sleeve (33) is rotatably connected with the first baffle (34) with the arc-shaped side wall, two ends of the first baffle (34) are respectively rotatably connected with the second baffle (35), the supporting mechanism (5) comprises a supporting frame (51), a supporting plate (52) and a fixing rod (53), the side walls of two ends of the connecting sleeve (33) are fixedly connected with the triangular supporting plate (52), one end of the elastic fixing rod (53) is rotatably connected with the supporting plate (52), and the other end of the fixing rod (53) is rotatably connected with the inner side wall of the second fixing plate (23); the supporting frame (51) is installed in an I shape at one end, far away from the fixing rod (53), of the supporting plate (52), two ends of the supporting frame (51) are respectively connected with the first baffle plate (34) and the second baffle plate (35), the connecting mechanism (9) comprises a connecting block (91) and a connecting rod (92), one end of the screw rod (31) is installed in a conical shape on the connecting block (91), the connecting rod (92) is installed on the side wall of the connecting block (91), the connecting rod (92) is in an arc shape in the side wall abutting against the inner side wall of the connecting sleeve (33), the connecting block (91) and the connecting rod (92) are rotatably connected with the inside of the connecting sleeve (33), the resetting mechanism (7) comprises a spring (71) and a supporting block (72), the other end of the supporting rod (44) is fixedly connected with the supporting block (72), and the spring (71) is installed between the supporting block (72) and the, and the supporting block (72) is in sliding connection with the inside of the sliding groove (41).
2. The method for improving the connection reliability of the high-pressure mud pipe of the ultra-deep water drilling ship according to claim 1, wherein the method comprises the following steps: the rotating mechanism (8) comprises a rotating shaft (81), a fixed sleeve (82) and a torsion spring (83), the bottom end of the limiting plate (62) is fixedly connected with the fixed sleeve (82), the connecting part of the roller (61) and the limiting plate (62) is fixedly connected with the rotating shaft (81), and the side wall of the rotating shaft (81) is symmetrically and rotatably connected with the fixed sleeve (82); the side wall of the rotating shaft (81) is provided with the torsion spring (83), and the two ends of the torsion spring (83) are respectively connected with the side wall of the fixed sleeve (82).
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| CN114413066B (en) * | 2022-02-28 | 2024-01-05 | 中交第二航务工程局有限公司 | Automatic telescoping device for slurry pipe between jacking pipe construction relays and using method |
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| KR101870213B1 (en) * | 2016-09-09 | 2018-06-22 | 최낙준 | Pipe supporting hanger for vibration proof |
| CN206206791U (en) * | 2016-10-13 | 2017-05-31 | 袁浩 | A kind of shockproof pipeline protection device of sun-proof rain-proof |
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Effective date of registration: 20200729 Address after: 226600 Kaiyuan Avenue, Haian Town, Nantong City, Jiangsu Province, 111 Applicant after: NANTONG YONGDA PIPE INDUSTRY Co.,Ltd. Address before: 214000 Jiangsu Province Wuxi Binhu District Datong 503 Wuxi Petroleum Instruments and Equipment Co., Ltd. Applicant before: Wei Wei |
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