CN112224337A

CN112224337A - Deepwater anchor system connecting plate auxiliary tool

Info

Publication number: CN112224337A
Application number: CN202010937723.XA
Authority: CN
Inventors: 王火平; 王杰文; 王德洋; 高超; 原庆东; 李龙祥; 石锦坤; 贺佛林; 刘浩
Original assignee: Shenzhen Offshore Oil Engineering Underwater Technology Co ltd; China National Offshore Oil Corp Shenzhen Branch
Current assignee: Shenzhen Offshore Oil Engineering Underwater Technology Co ltd; China National Offshore Oil Corp Shenzhen Branch
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-01-15

Abstract

The invention relates to an auxiliary tool for a deepwater anchor system connecting plate, which comprises a first frame, a second frame and a connecting device, wherein the second frame is oppositely matched with the first frame; the device also comprises a pin shaft guide structure which is arranged on the first frame and used for bearing a pin shaft of a connecting plate and a nut guide structure which is arranged on the second frame and corresponds to the pin shaft guide structure and used for bearing a pin shaft nut; the pin shaft guide structure comprises a boosting handle which is arranged on the pin shaft guide structure, is connected with one end of a connecting plate pin shaft and plays a role in positioning the connecting plate pin shaft; the nut guide structure comprises a nut limiting plate which is arranged on the nut guide structure, is used for being connected with the pin roll nut and plays a role in positioning the pin roll nut. The auxiliary tool has strong operability of an underwater Robot (ROV) due to ingenious design, and has the advantages of simple structure, low requirement on seawater environment, high economy, safety, high efficiency and the like.

Description

Deepwater anchor system connecting plate auxiliary tool

Technical Field

The invention relates to the field of offshore oil engineering, in particular to an auxiliary tool for a deepwater anchor system connecting plate.

Background

As the domestic offshore oil industry gradually moves to deep water, suction anchors and pile anchors are increasingly used in offshore permanent mooring systems. In offshore construction for installing a deepwater permanent mooring system, a suction anchor is usually installed to the sea bottom, and then a mooring anchor chain and a steel cable are laid to the sea bottom and connected with an anchor head chain pre-installed on the suction anchor. When the mooring anchor chain is connected with the anchor head chain, because the operation precision is high, the connection operation between the anchor chains is usually carried out by manpower, however, the connection operation between the suction anchor and the mooring anchor leg is limited by the working depth of a diver along with the increase of the water depth, the connection operation between the suction anchor and the mooring anchor leg is carried out by an underwater Robot (ROV), the manipulator flexibility of the underwater Robot (ROV) cannot be compared with that of a human hand, and the direct connection plate installation operation of the underwater Robot (ROV) under the water is difficult to realize under the existing conditions. Therefore, the installation needs to be performed by means of auxiliary tools.

In the prior art, an underwater mooring system quick connector technical scheme is adopted to enable an underwater Robot (ROV) to carry out connecting plate installation operation. Although the underwater anchor system quick connector can realize the underwater independent connection of the mooring anchor pile and the mooring anchor leg by an underwater Robot (ROV), the quick connector has a complex structure and extremely high requirements on materials because the quick connector has the functions of spring and locking and bears extremely large mooring force, and only a few foreign companies can design and manufacture at present, so that technical monopoly is easy to appear; on the other hand, the male and female heads of the quick connector need to be tightly attached to realize connection, so that the surface of the quick connector has high requirements on impurities and corrosion resistance, an anti-corrosion agent needs to be poured and a silt-proof cover plate needs to be installed after the anchor pile is installed, the influence caused by silt kicked up by ocean currents needs to be avoided in the installation process, and the requirement on the offshore installation environment is high.

Disclosure of Invention

The invention aims to solve the technical problem of providing an auxiliary tool for a deepwater anchor system connecting plate, aiming at the defects in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a deepwater anchor system connecting plate auxiliary tool, which comprises a first frame, a second frame matched with the first frame oppositely, and a connecting device used for connecting the first frame and the second frame together;

the device also comprises a pin shaft guide structure which is arranged on the first frame and used for bearing a pin shaft of a connecting plate and a nut guide structure which is arranged on the second frame and corresponds to the pin shaft guide structure and used for bearing a pin shaft nut;

the pin shaft guide structure comprises a boosting handle which is arranged on the pin shaft guide structure, is connected with one end of a connecting plate pin shaft and plays a role in positioning the connecting plate pin shaft; the nut guide structure comprises a nut limiting plate which is arranged on the nut guide structure, is used for being connected with the pin roll nut and plays a role in positioning the pin roll nut.

In some embodiments, the first frame comprises a first base, a first locking plate and a first cylinder protruding outwards from the first frame, and the first cylinder is located between the first base and the first locking plate;

the pin shaft guide structure comprises a first cylinder, a boosting handle and a handle bolt which is arranged on the boosting handle and used for being connected with a connecting plate pin shaft, wherein two opposite sides of the first cylinder are respectively provided with an axial guide groove for the boosting handle to slide back and forth;

the axial guide groove is provided with a disconnection groove close to the first frame end, and when the boosting handle slides into the disconnection groove, the handle bolt is disconnected from the boosting handle.

In some embodiments, the second frame comprises a second base, a second locking plate and a second cylinder protruding outwards from the second frame, and the second cylinder is located between the second base and the second locking plate;

the nut guide structure comprises the second cylinder and the nut limiting plate arranged in the second cylinder.

In some embodiments, the end of the shaft guide groove away from the first frame is provided with a positioning groove for temporarily placing the boosting handle therein.

In some embodiments, the connecting device comprises a plurality of first fixing rods, a first fixing rod nut corresponding to the number of the plurality of first fixing rods, and a first blocking part;

one end of the first fixing rod is provided with a thread matched with the first fixing rod nut, and the other end of the first fixing rod is used for arranging the first blocking part on the first blocking part;

the first blocking part comprises a first inserting hole and a tool release rod penetrating through the first inserting hole;

one end of the tool releasing rod is provided with an annular part for preventing the tool releasing rod from slipping off the first inserting hole, and the maximum external dimension of the annular part is larger than the aperture dimension of the first inserting hole;

the first locking plate is provided with first fixing holes corresponding to the number of the first fixing rods, the second locking plate is provided with second fixing holes corresponding to the first fixing holes, the first fixing rods sequentially penetrate through the first fixing holes and the second fixing holes, the first fixing rod nuts are matched with one ends of the first fixing rods, and the tool releasing rods penetrate through the first inserting holes so as to lock the first frame provided with the connecting plates with the second frame.

In some embodiments, a first monkey fist which is convenient for pulling the tool releasing rod out of the first inserting hole is arranged on the annular part of the tool releasing rod.

In some embodiments, the connecting device further comprises a plurality of second fixing rods, second fixing rod nuts for being arranged at two ends of the second fixing rods, and limiting pipes for being arranged at one end of the second fixing rods in a penetrating manner;

both ends of the second fixed rod are provided with threads;

the first locking plate is provided with third fixing holes corresponding to the number of the second fixing rods, the second locking plate is provided with fourth fixing holes corresponding to the third fixing holes, the second fixing rods sequentially penetrate through the third fixing holes and the fourth fixing holes, the second fixing rods are sleeved with the limiting pipes and close to the pin shaft guide structure at one ends, the second fixing rods are matched with nuts of the second fixing rods at two ends of the second fixing rods, and therefore the first frame and the second frame are locked.

In some embodiments, the surfaces of the first locking plate opposite to the second locking plate are provided with connecting plate positioning parts for positioning the connecting plates;

the connecting plate positioning portion comprises a first circular protrusion and a second circular protrusion, the first circular protrusion and the second circular protrusion are respectively arranged on the opposite surfaces of the first locking plate and the second locking plate in a protruding mode, the second circular protrusion is arranged on the opposite surface of the second locking plate and the first circular protrusion in a protruding mode, and the second circular protrusion is arranged opposite to the first circular protrusion.

In some embodiments, the first base includes a first base plate including a first horizontal portion for seating on an anchor pile head chain platform and a first bent portion bent upward relative to the first horizontal portion;

the second base comprises a second bottom plate, and the second bottom plate comprises a second horizontal part and a second bending part, wherein the second horizontal part is used for being located on the anchor pile anchor head chain platform, and the second bending part is bent upwards relative to the second horizontal part;

first portion of bending is the symmetry setting with the second portion of bending, and defines out relatively and be the font space of falling V for supply protruding the establishing the bellying of anchor pile anchor head chain platform holds wherein.

In some embodiments, the auxiliary tool further comprises a plug pin structure for preventing the pin shaft nut of the connecting plate from falling off, wherein the plug pin structure comprises a safety pin, a fixing pin and a second monkey fist connected with the fixing pin;

the second frame comprises a mounting plate which is arranged in an outward protruding mode and perpendicular to the plane of the second frame, and the middle of the mounting plate is provided with a safety pin hole for inserting the safety pin;

the second cylinder is provided with a safety pin groove which corresponds to the safety pin hole and is used for inserting the safety pin; and one end of the safety pin, which is close to the safety pin hole, is provided with a second inserting hole for inserting the positioning pin therein, so that the safety pin is temporarily installed on the nut guide structure.

The auxiliary tool for the deepwater anchor system connecting plate has the following beneficial effects that: the auxiliary tool has strong operability of an underwater Robot (ROV) due to ingenious design, and has the advantages of simple structure, low requirement on seawater environment, high economy, safety, high efficiency and the like.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural view of an auxiliary fixture for a deepwater mooring connection plate in some embodiments of the present invention;

FIG. 2 is a schematic structural diagram of a deep water mooring connecting plate auxiliary tool provided with a connecting plate in some embodiments of the invention;

fig. 3 is an application scenario diagram of the auxiliary tool for the deepwater anchor system connection plate in some embodiments of the present invention.

Detailed Description

For a clearer understanding of the technical features, objects, and effects of the present invention, reference will now be made to the accompanying drawings.

It is to be noted that the terms upper, lower, etc. indicate orientations and positional relationships based on positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred units or elements must have a specific orientation, be constructed or operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Fig. 1 and 2 show an auxiliary tool for a deepwater anchor system connecting plate in some embodiments of the present invention, which is hereinafter referred to as an auxiliary tool; the auxiliary tool is an auxiliary device used for connecting an anchor head chain preassembled on a suction anchor positioned on the seabed and a mooring anchor chain paved on the seabed by an underwater Robot (ROV). Specifically, the anchor head chain and the mooring anchor chain need to be connected together by means of the connecting plate 50, that is, firstly, the connecting plate pin shaft and the pin shaft nut are arranged on the auxiliary tool, the auxiliary tool is matched with the connecting plate 50, the auxiliary tool is operated by an underwater Robot (ROV), and the connecting plate pin shaft and the pin shaft nut are connected to the connecting plate 50, so that the connection of the anchor head chain and the mooring anchor chain is realized.

The auxiliary tool in some embodiments comprises a first frame 10, a second frame 20 opposite to and matched with the first frame 10, and a connecting device 30 for connecting the first frame 10 and the second frame 20 together; during the auxiliary tool mounting process, the connection plate 50 is fitted between the first frame 10 and the second frame 20, and then the connection device 30 locks the connection plate 50 between the first frame 10 and the second frame 20.

The first frame 10 in some embodiments includes a first base 12, a first locking plate 13, and a first cylinder 110 protruding outward from the first frame 10, the first cylinder 110 being located between the first base 12 and the first locking plate 13; the second frame 20 in some embodiments includes a second base 22, a second locking plate 23, and a second cylinder 210 protruding outward from the second frame 20, wherein the second cylinder 210 is located between the second base 22 and the second locking plate 23.

The first locking plate 13 and the second locking plate 23 are both plate-shaped and are respectively and oppositely arranged at the upper ends of the first frame 10 and the second frame 20, and the connecting device 30 is arranged on the first locking plate 13 and the second locking plate 23 to connect the first locking plate 13 and the second locking plate 23 together, so as to lock the first frame 10 and the second frame 20.

The first cylinder 110 and the second cylinder 210 are arranged in a row, and preferably, the first cylinder 110 and the second cylinder 210 are located on the same axis and respectively protrude outward in a direction opposite to the opposite direction, as shown in fig. 1. The first cylinder 110 is used to provide guidance for the connection plate pin, and the second cylinder 210 is used to provide guidance for the pin nut, facilitating the connection of the connection plate pin and the pin nut in cooperation on the connection plate 50, and further facilitating the operation of an underwater Robot (ROV).

The first base 12 comprises a first bottom plate 120, and the first bottom plate 120 comprises a first horizontal part 121 for being located on the anchor pile head chain platform and a first bending part 122 bent upwards relative to the first horizontal part 121; the second base 22 comprises a second bottom plate 220, the second bottom plate 220 comprises a second horizontal part 221 for being located on the anchor pile anchor head chain platform and a second bending part 222 bent upwards relative to the second horizontal part 221;

first portion 122 and the second portion 222 of bending are the symmetry setting, and relatively define and be the space of falling V-letter shape for supply protruding bellying of establishing on anchor pile anchor head chain platform to hold wherein.

First and second

horizontal portions

121 and 221 and first and

second bent portions

122 and 222 help to seat connecting plate 50 on the anchor pile head chain platform and align with the uppermost chain link of the anchor head chain.

The auxiliary tool in some embodiments further includes a pin shaft guide structure 11 arranged on the first frame 10 and used for bearing a pin shaft of the connecting plate, and a nut guide structure 12 arranged on the second frame 20 and corresponding to the pin shaft guide structure 11 and used for bearing a pin shaft nut; the pin shaft guide structure 11 and the nut guide structure 21 are respectively used for providing guide for the connecting plate pin shaft and the pin shaft nut, so that an underwater Robot (ROV) can conveniently operate the connecting plate pin shaft and the pin shaft nut, namely, the connecting plate pin shaft and the pin shaft nut can be connected to the connecting plate 50 in a matched mode without flexible operation, and therefore connection between the anchor head chain and the mooring anchor chain is completed.

The pin guide structure in some embodiments includes a first cylinder 110, a boost handle 111 provided on the first cylinder 110, and a handle bolt 112 provided on the boost handle 111 for pin-coupling with the connection plate 50. In the installation process of the auxiliary tool, when the connecting plate 50 is arranged on the auxiliary tool, the handle bolt 112 is connected with the boosting handle 111, the connecting plate pin shaft is arranged on the handle bolt 112, and the boosting handle 111 is located at a first preset position in the first cylinder 110. When the auxiliary tool connected with the connecting plate 50 is matched with the connecting plate pin shaft by the underwater Robot (ROV) after the pin shaft nut is matched with the connecting plate pin shaft, the boosting handle 112 is moved to a second preset position from a first preset position by the underwater Robot (ROV), and at the moment, the handle bolt 112 is separated from the boosting handle 111.

In some embodiments, two opposite sides of the first cylinder 110 are respectively opened with an axial guide slot 1101 for the boosting handle 111 to slide back and forth; a disconnection groove 1102 is formed at the end, close to the first frame 10, of the axial guide groove 1101, and a positioning groove 1103 is formed at the end, far away from the first frame 10, of the axial guide groove 1101. The disconnecting groove 1102 and the positioning groove 1103 are both perpendicular to the axial guide groove 1101, and the depth of the disconnecting groove 1102 is greater than that of the positioning groove 1103. Before the underwater Robot (ROV) performs deep sea operation, the boosting handle 111 slides into the positioning groove 1103 along the axial guide groove 1101, so that the boosting handle 111 is temporarily placed in the positioning groove 1103, and during the deep sea operation of the underwater Robot (ROV), the boosting handle 111 slides into the disconnection groove 1102 along the axial guide groove 1101 by the robot, so that the handle bolt 112 is disconnected from the boosting handle 111, and the connection of the connecting plate pin shaft and the pin shaft nut on the connecting plate 50 is completed.

The nut guide 21 in some embodiments includes a second cylinder 210, a nut limiting plate 211 provided on the second cylinder 210 for positioning a spindle nut, and a limiting plate fixing part 212. The second cylinder 210 serves as an axial guide for cooperating with the end provided with the pin nut and facilitating the fitting of the pin nut on the connecting plate pin. The nut limiting plate 211 positions the pin nut thereon, the positioned pin nut and the connecting plate pin are arranged oppositely, and the connecting nut can be matched on the connecting plate pin by simple operation steps, so that the connecting plate 50 is connected between the anchor head chain and the mooring anchor chain through the connecting plate pin and the pin nut, and the connection between the anchor head chain and the mooring anchor chain is completed. The nut stopper plate is fixed at a predetermined position by the stopper plate fixing portion 212.

The connecting device 30 in some embodiments includes a plurality of first fixing rods 31, a first fixing rod nut 32 corresponding to the number of the plurality of first fixing rods 31, and a first blocking part 33; the first fixing rod 31 is inserted into the first locking plate 13 and the second locking plate 23, the first fixing rod nut 32 and the first blocking portion 33 are respectively disposed at two ends of the first fixing rod 13, that is, one end of the first fixing rod 31 is provided with a thread engaged with the first fixing rod nut 32, and the other end is used for the first blocking portion 33 to be disposed thereon, so as to lock the first fixing rod 13 between the first locking plate 13 and the second locking plate 23. In the present embodiment, the first fixing rod nut 32 is located at one end of the first fixing rod 31 close to the pin guide 11, and the first blocking portion 33 is located at one end of the first fixing rod 31 close to the nut guide 21, as shown in fig. 1.

In some embodiments, the plurality of first fixing bars 31 may include three first fixing bars 31, and the three first fixing bars 31 are longitudinally and sequentially arranged at one side of the locking plate space defined by the first locking plate 13 and the second locking plate 23, and sequentially penetrate through the first locking plate 13 and the second locking plate 23.

In some embodiments, the first blocking portion 33 includes first insertion holes (not shown), and the three first insertion holes are sequentially and correspondingly disposed up and down and used for disposing the tool disengaging rod 331 therein;

tooling solution in some embodiments

The annular portion 3301 that takes off pole 331 one end and prevent from first spliced eye slippage is provided with, and the biggest overall dimension of annular portion 3301 is greater than the pore size of first spliced eye, wears to be equipped with in this annular portion 3301 and conveniently pulls out the first monkey fist 332 that the frock freed from the pole.

In some embodiments, the first locking plate 13 is provided with first fixing holes 130 corresponding to the number of the first fixing rods 31, the second locking plate 23 is provided with second fixing holes 230 corresponding to the first fixing holes 130, after the first fixing rods 31 are sequentially inserted into the first fixing holes and the second fixing holes 130 and 230, the first fixing rod nuts 32 are fitted at one ends of the first fixing rods 31, and the tool releasing rods 331 are inserted into the first insertion holes, so as to lock the first frame 10 provided with the connecting plates 50 with the second frame 20.

Frock release lever 330 is before underwater Robot (ROV) operation for locking auxiliary fixtures, and after the cooperation of round pin axle nut and connecting plate round pin axle is accomplished in underwater Robot (ROV), underwater Robot (ROV) pulls out frock release lever 330 through first monkey fist 332.

The connecting device 30 in some embodiments further comprises a plurality of second fixing rods 34, second fixing rod nuts 35 for being disposed at both ends of the second fixing rods 34, and a limiting tube 36 for being inserted through one end of the second fixing rods 34; both ends of the second fixing rod 34 are provided with threads; the limiting pipe 36 is mainly used in a tool dismantling stage and provides a margin contact point for underwater and manual (ROV) cutting; specifically, after the butt joint of the connecting plate pin shaft and the pin shaft nut is completed, and further the connection between the anchor head chain and the mooring anchor chain is realized, the auxiliary tool is detached, in the detaching stage, the second fixing rod 34 at the position of the limiting pipe 36 needs to be cut off, and for convenient operation, the limiting pipe 36 needs to have a certain length, so that a margin tangent point is left for the removing process, and the operation of an underwater Robot (ROV) is facilitated.

In some embodiments, the plurality of second fixing bars 34 may include three second fixing bars 34, and the three first fixing bars 34 are longitudinally and sequentially arranged at the other side of the locking plate space defined by the first locking plate 13 and the second locking plate 23, and sequentially penetrate through the first locking plate 13 and the second locking plate 23.

Third fixing holes 131 corresponding to the number of the second fixing rods 34 are formed in the first locking plate 13, fourth fixing holes 231 corresponding to the third fixing holes 131 are formed in the second locking plate 23, the second fixing rods 34 sequentially penetrate through the third fixing holes 131 and the fourth fixing holes 231, the limiting pipes 36 are sleeved on the second fixing rods 34 near one ends of the pin shaft guide structures 11, and the second fixing rod nuts 35 are matched with the two ends of the second fixing rods 34 to lock the first frame 10 provided with the connecting plates 50 with the second frame 20.

In some embodiments, the first locking plate 13 and the second locking plate 23 are provided with a connecting plate positioning portion on the opposite surfaces thereof, respectively, for positioning the connecting plate 50 thereon, the connecting plate positioning portion includes a first circular protrusion 132 protruding on the first locking plate 13 and a second circular protrusion 232 protruding on the second locking plate 23, and the first circular protrusion 132 and the second circular protrusion 232 are both located in the locking plate space defined by the first locking plate 13 and the second locking plate 23; the first circular protrusion 132 and the second circular protrusion 232 are symmetrically disposed, and are used for the connection board to fit thereon, so as to position the connection board 50.

In some embodiments, the auxiliary tool further comprises a pin structure 40 for preventing the connection plate pin nut from falling off, the pin structure 40 is disposed on the nut guide structure 21 before the connection plate pin is connected with the pin nut in a matching manner, and the pin structure 40 is disposed at the outer end of the connection plate pin after the connection plate pin is connected with the pin nut in a matching manner, so as to prevent the connection plate pin and the pin nut from being separated from the connection plate 50.

The latch structure 40 in some embodiments comprises a safety pin 41, a fixing pin 42 disposed at one end of the safety pin 41 for fixing the safety pin at a predetermined position and preventing the safety pin from sliding off the nut guide 21, a rotating handle 43 disposed at one end of the safety pin 41 for controlling the safety pin 41 to slide off the nut guide 21, and a second monkey fist 44 connected to the fixing pin 42 for facilitating the pulling out of the fixing pin 42;

the second frame 20 comprises a mounting plate which is arranged in an outward protruding manner and is vertical to the plane of the second locking plate 23, and the middle part of the mounting plate is provided with a safety pin hole for inserting the safety pin 41; the second cylinder 210 is provided with a safety pin slot corresponding to the safety pin hole and used for inserting the safety pin 41; one end of the safety pin 41 close to the safety pin hole is provided with a second insertion hole 410 for inserting the positioning pin 42 therein, and the positioning pin 42 is inserted in the second insertion hole 410, so that the safety pin 41 is temporarily installed on the nut guide structure 21.

After round pin axle nut is connected with the cooperation of connecting plate round pin axle, underwater Robot (ROV) is through dragging second monkey fist 44 in order to extract the fixed pin from 42 safety pins, stirs the rotatory handle on the safety pin 41 again for safety pin 41 can fall into in the terminal round hole of connecting plate round pin axle. At this time, the thinner part of the lower end of the safety pin 41 will extend out from the middle lower part of the circular hole at the end of the connecting plate pin shaft, and an underwater Robot (ROV) can bend the safety pin to a proper angle by using a manipulator. At this point the connection of the connection plate 50 to the anchor head chain is complete.

Auxiliary fixtures installation:

the connecting plate pin shaft and the pin shaft nut are respectively placed in the first cylinder 110 of the pin shaft guide structure 11 and the second cylinder 210 of the nut guide structure 21, the angle of the connecting plate pin shaft is adjusted to enable the tail end round hole to be in the vertical direction, the other end of the connecting plate pin shaft is connected with a handle bolt 112 installed in advance, and the handle bolt 112 is buckled with a boosting handle 111. Then, the connecting plate 50 is lifted, and the pin guide 11 and the nut guide 21 are respectively disposed on both sides of the connecting plate 50. After the positioning recesses on the two sides of the connecting plate 50 are aligned with the first circular protrusion 132 on the first locking plate 13 and the second circular protrusion 232 on the second locking plate 23, respectively, the pin shaft guide structure 11 and the nut guide structure 21 are moved to be tightly attached to the connecting plate 50, and then the connecting device 30 is used to lock the connecting plate, specifically, the pin shaft guide structure 11 and the nut guide structure 21 are fastened by using three first fixing rods 31, three second fixing rods 34, a limiting pipe 36, a first fixing rod nut 32 and a second fixing rod nut 35, wherein the limiting pipe 36 should be located on one side of the pin shaft guide structure 11, so that the space on the side is relatively abundant, and the ROV can conveniently carry and cut under water. At this time, the auxiliary handle 111 falls into the directional groove 1103 in the first cylinder 110, and then the fixing pin 42 is inserted into the insertion hole 410 of the safety pin 41 to be locked, and the safety pin 41 is inserted into the nut guide structure 21 to complete the installation of the auxiliary tool.

Be provided with auxiliary fixtures seabed installation process of connecting plate 50:

as shown in fig. 3, the crane integrally lifts the connecting plate 50 and the auxiliary tool to the vicinity of the chain ring at the top end of the suction anchor head chain, and the working vessel, the crane, the steel cable and the hoisting/anchoring winch for laying the anchor chain are engaged to complete the pairing of the connecting plate 50 and the chain ring at the top end of the suction anchor head chain. Then, an underwater Robot (ROV) flies to one side of the pin guide structure 11, and a manipulator of the ROV grabs the boosting handle 111 to push the connecting plate pin into the connecting plate shaft hole. When the connecting plate pin is pushed into place, the boost handle 111 will fall into the disengagement recess 1102 in the first cylinder 110, automatically disengaging from the handle bolt 112. Then the ROV flies to the side of the nut guide structure 21, a handle on the pin shaft nut is grabbed by a mechanical hand of an underwater Robot (ROV), and the ROV is pushed forwards in the rotating process to screw the pin shaft nut into the connecting plate pin shaft. Then the manipulator of underwater Robot (ROV) snatchs second monkey fist 44, extracts fixed pin 42 from safety pin 41, stirs the rotatory handle on the safety pin 41 again for safety pin 41 can fall into in the terminal round hole of connecting plate round pin axle. At this time, the thinner part of the lower end of the safety pin 41 will extend out from the lower part of the circular hole at the end of the connecting plate pin shaft, and an underwater Robot (ROV) can bend the ROV to a proper angle by using a manipulator thereof. At this time, the connection operation of the connecting plate 50 and the anchor head chain is completed, that is, the connection between the mooring anchor chain and the anchor head chain is realized.

The tool dismantling process comprises:

firstly, a manipulator of an underwater Robot (ROV) is used for carrying a hydraulic cutting saw, three limiting pipes 36 fixed on a second fixing rod 34 are cut off in sequence, and at the moment, no pulling force exists between the three first fixing rods 31 and six second fixing rods 34 between the pin shaft guide structure 11 and the nut guide structure 21. Next, a manipulator of the underwater Robot (ROV) grasps the first monkey connected to the tool release lever 331, and pulls out the tool release lever 331 from the first insertion hole. At this time, the pin shaft guide structure 11 and the nut guide structure 21 are completely separated, and an underwater Robot (ROV) manipulator grabs the auxiliary handle or fixes an auxiliary sling on the auxiliary handle, so that the auxiliary tool can be removed from the anchor pile head chain platform.

The auxiliary tool is mainly used for realizing underwater Robot (ROV) underwater independent connection of the mooring anchor pile and the mooring anchor leg, and has the following advantages:

the economy is high: the invention is essentially a steel frame, the matched H-Link can be directly machined by steel with higher service performance, the cost is relatively low, and the H-Link can be independently designed and machined according to the mooring connecting piece;

the environmental requirement is low: the invention has simple structure, belongs to a temporary structure, does not need to be subjected to corrosion prevention under the condition of keeping a certain design allowance, can not be influenced by surrounding silt, impurities and the like, has poor vision of a Robot (ROV) under water removal or can not normally sail, and can be normally installed under other seabed conditions;

simple structure and design benefit and maneuverability are strong: the anchor system connecting piece (such as H-Link and mooring anchor chain) to be installed and the connected anchor head chain can be well adapted, the auxiliary structure of the anchor pile anchor head chain platform can be matched with the pairing of the connecting piece and the anchor head chain, the connecting piece and the anchor head chain can be firmly and temporarily fixed on the anchor system connecting piece, and an underwater Robot (ROV) can be easily disassembled through simple operations of cutting, pulling out the connecting piece and the like; in addition, the invention has special space for accommodating auxiliary components of the anchoring connecting piece, such as a connecting plate pin shaft, a pin shaft nut, a safety pin and the like, and the position and the size of the accommodating structure need to be specially designed, so that an underwater Robot (ROV) can directly move the auxiliary components to a preset design position through simple operation underwater; the invention has stronger operability of the underwater Robot (ROV), and has the designs of an auxiliary handle of the underwater Robot (ROV), a limiting pipe convenient for the cutting of the underwater Robot (ROV) and the like at the key position.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. The auxiliary tooling for the deepwater anchor system connecting plate is characterized by comprising a first frame (10), a second frame (20) which is oppositely matched with the first frame (10), and a connecting device (30) which is used for connecting the first frame (10) and the second frame (20) together;

the device also comprises a pin shaft guide structure (11) which is arranged on the first frame (10) and used for bearing a pin shaft of a connecting plate, and a nut guide structure (21) which is arranged on the second frame (20) and corresponds to the pin shaft guide structure (11) and used for bearing a pin shaft nut;

the pin shaft guide structure (11) comprises a boosting handle (111) which is arranged on the pin shaft guide structure, is connected with one end of a connecting plate pin shaft and plays a role in positioning the connecting plate pin shaft; the nut guide structure (21) comprises a nut limiting plate (211) which is arranged on the nut guide structure, is used for being connected with the pin shaft nut and plays a role in positioning the pin shaft nut.

2. The deep water anchor tie connecting plate auxiliary tool according to claim 1, wherein the first frame (10) comprises a first base (12), a first locking plate (13) and a first cylinder (110) protruding outwards from the first frame (10), the first cylinder (110) being located between the first base (12) and the first locking plate (13);

the pin shaft guide structure (11) comprises a first cylinder (110), a boosting handle (111) and a handle bolt (112) which is arranged on the boosting handle (111) and is used for being connected with a pin shaft of a connecting plate, wherein two opposite sides of the first cylinder (110) are respectively provided with an axial guide groove (1101) for the boosting handle (111) to slide back and forth;

the axial guide groove (1101) is provided with a disengagement groove (1102) close to the first frame end (10), and when the boosting handle (111) slides into the disengagement groove (1102), the handle bolt (112) is disengaged from the boosting handle (111).

3. The deep water anchor tie connecting plate auxiliary tool according to claim 2, wherein the second frame (21) comprises a second base (22), a second locking plate (23) and a second cylinder (210) protruding outwards from the second frame (21), and the second cylinder (210) is located between the second base (22) and the second locking plate (23);

the nut guide structure (21) comprises the second cylinder (210) and the nut limiting plate (211) arranged in the second cylinder (210).

4. The deep water anchoring system connecting plate auxiliary tool is characterized in that a positioning groove (1103) for temporarily placing the boosting handle (111) therein is formed in the end, away from the first frame, of the axial guide groove (1101).

5. The deep water anchor system connecting plate auxiliary tool is characterized in that the connecting device (30) comprises a plurality of first fixing rods (31), a plurality of first fixing rod nuts (32) corresponding to the first fixing rods (31) in number and a first blocking part (33);

one end of the first fixing rod (31) is provided with a thread matched with the first fixing rod nut (32), and the other end of the first fixing rod is used for arranging the first blocking part (33);

the first blocking part (33) comprises a first inserting hole and a tool releasing rod (331) penetrating through the first inserting hole;

one end of the tool releasing rod (331) is provided with an annular part (3301) for preventing the tool releasing rod from slipping off the first inserting hole, and the maximum external dimension of the annular part (3301) is larger than the aperture dimension of the first inserting hole;

the first locking plate (13) is provided with first fixing holes (130) corresponding to the number of the first fixing rods (31), the second locking plate (23) is provided with second fixing holes (230) corresponding to the first fixing holes (130), the first fixing rods (31) sequentially penetrate through the first fixing holes (130) and the second fixing holes (230), the first fixing rod nuts (32) are matched with one ends of the first fixing rods (31), and the tool releasing rods (331) penetrate through the first inserting holes so as to lock the first frame (10) provided with the connecting plates (50) with the second frame (20).

6. The auxiliary tooling for the deepwater anchor system connecting plate as claimed in claim 5, wherein a first monkey fist (332) which is convenient for pulling the tooling release rod (331) out of the first inserting hole is arranged on the annular part (3301) of the tooling release rod (331).

7. The deep water anchoring connection plate auxiliary tool according to claim 5, wherein the connection device (30) further comprises a plurality of second fixing rods (34), second fixing rod nuts (35) arranged at two ends of the second fixing rods (34), and a limiting pipe (36) arranged at one end of the second fixing rods (34) in a penetrating manner;

both ends of the second fixing rod (34) are provided with threads;

third fixed orifices (131) corresponding to the number of second fixed rods (34) are arranged on the first locking plate (13), fourth fixed orifices (231) corresponding to the third fixed orifices (131) are arranged on the second locking plate (23), the second fixed rods (34) sequentially penetrate through the third fixed orifices (131) and the fourth fixed orifices (231), the limiting pipes (36) are sleeved on the second fixed rods (34) close to the pin shaft guide structure (11) at one end, the second fixed rod nuts (35) are matched with the two ends of the second fixed rods (34) so as to lock the first frame (10) and the second frame (20) with the connecting plates (50).

8. The deepwater anchoring connection plate auxiliary tool as claimed in claim 7, wherein connecting plate positioning portions for positioning the connection plate (50) are arranged on the opposite surfaces of the first locking plate (13) and the second locking plate (23);

connecting plate location portion is protruding to be established including respectively first circular arch (132) and protruding the establishing on first locking plate (13) and second locking plate (23) opposite face second circular arch (232) on second locking plate and the first locking plate opposite face, second circular arch (232) set up with first circular arch (132) relatively.

9. The deep water anchoring connection plate auxiliary tool according to claim 3, wherein the first base (12) comprises a first bottom plate (120), the first bottom plate (120) comprises a first horizontal portion (121) for being located on an anchor pile head chain platform and a first bending portion (122) which is bent upwards relative to the first horizontal portion (121);

the second base (22) comprises a second bottom plate (220), the second bottom plate (220) comprises a second horizontal part (221) used for being located on the anchor pile anchor head chain platform and a second bending part (222) bent upwards relative to the second horizontal part (221);

first portion of bending (121) and second portion of bending (221) are the symmetry and set up, and define out relatively and be the font space of falling V for supply protruding the establishing the bellying of anchor pile anchor head chain platform holds wherein.

10. The deep water anchoring connection plate auxiliary tool according to claim 3, further comprising a plug pin structure (40) for preventing the connection plate pin shaft nut from falling off, wherein the plug pin structure (40) comprises a safety pin (41), a fixed pin (42) and a second monkey fist (44) connected with the fixed pin;

the second frame (20) comprises an installation plate which is arranged in an outward protruding mode and perpendicular to the plane of the second frame (20), and the middle of the installation plate is provided with a safety pin hole for inserting the safety pin (41);

the second cylinder (210) is provided with a safety pin groove which corresponds to the safety pin hole and is used for inserting the safety pin (41); one end of the safety pin (41) close to the safety pin hole is provided with a second inserting hole (410) for inserting the positioning pin (42) therein, so that the safety pin (41) is temporarily installed on the nut guide structure (21).