KR102137150B1 - Docking guide system of vessel for offshore tower - Google Patents

Abstract

The present invention discloses a system for maintaining berthing of a ship for a marine structure, which can stably maintain a berthing point without being affected by water surface fluctuations to noticeably shorten an operation time and protect an operator from accidents. To this end, the system for maintaining berthing of a ship for a marine structure includes: a plate-shaped fixing bracket fixedly installed on a deck of a bow of the ship; a gangway including a base platform, a berthing platform, and a passage platform; a driving part damping generated rolling by rotating the gangway in a reverse direction based on an X-axis, a Y-axis or a Z-axis; a motion reference unit (MRU) sensor mounted on the gangway; and a main control part allowing the berthing platform to be continuously maintained at the berthing point.

Description

Docking Maintenance System of Marine Structure Ships {DOCKING GUIDE SYSTEM OF VESSEL FOR OFFSHORE TOWER}

The present invention comprises: a berthing maintenance system for berthing a ship to an offshore structure, comprising: a plate-shaped fixing bracket fixedly installed on the bow deck of the ship; The base platform disposed on the upper portion of the fixing bracket, the docking platform hinged to one side edge of the base platform and abutting on the offshore structure, and the hinge platform coupled to the edge of the other side of the base platform, the operator of the ship docking platform A gangway that includes a passage platform that guides to move to the side; When the lateral fluctuation (ROLL), driven fluctuation (PITCHING) or front and rear fluctuation (SURGING) caused by waves and swells, and driving the gangway in the reverse direction based on the X-axis, Y-axis or Z-axis attenuation; A motion reference unit (MRU) sensor mounted on the gangway to detect fluctuations caused by waves and tides and to measure fluctuations; And a main control unit that compares the measured value through the MRU sensor with a preset value to control the driving unit so that the eyepiece platform can maintain the eyepiece point continuously when fluctuations occur in the waves and troughs. It relates to a berthing maintenance system for a structural vessel.

For the operation and maintenance of offshore structures, such as offshore observation bases or offshore wind turbines, operators or maintenance personnel must access the structures through ships.

At this time, the existing access structure for approaching the offshore structure through the ship consists of a ship berth and a ladder for climbing to the platform, so that the ship is approached to the berth of the cylinder and then climbed on a fixed ladder to climb to the platform.

However, since the fluctuation of the surface of the water is caused by the waves and the swell, it is not easy to climb on a fixed ladder in a boat that goes up and down according to the fluctuation of the water, and there is a significant risk. If the wave height is high, there is a risk of an accident.

Therefore, access to the platform of the offshore structure using the existing access structure is very limited because the sea level must wait very calm and clear weather.

An example of such an offshore structure is an offshore wind power generator.

Offshore wind power generation complexes are generally developed on a large scale, and since the number of structures reaches tens to hundreds, access to the structures is frequently made, and a method for safely and easily accessing the above marine situations is required.

In order to produce a lot of power at offshore wind farms, maintenance of a wind power generator is essential. If efficient maintenance is not performed, the operation efficiency is inevitably lowered, and accordingly, the power generation amount is reduced. Therefore, in order to increase the profitability of a large-scale offshore wind power project, a maintenance system capable of preparing for an unexpected situation is required.

In order to solve the above-mentioned problem, "Republic of Korea Patent Publication No. 10-1029771 (Apr. 19. 2011. Announcement) has disclosed the "berthing facility for offshore wind power generation equipment."

Referring to FIG. 8, the offshore wind power generator 200 includes a wing 210 facing the wind, and a power transmission device 220 coupled to the wing 210 and driven as the wing 210 rotates. , Generator 230 for generating electricity in combination with the power transmission device 220, and a tower 240 installed vertically on the sea to support the wing 210, the power transmission device 220 and the generator 230 ) And the like.

An eyepiece structure 250 is formed on one side of the tower 240 so that a ship loaded with manpower and equipment for repairing the offshore wind power generator 200 is docked.

The berthing structure 250 has a protruding portion of the ship inserted so that the ship is docked adjacent to the tower, so that the manpower aboard the ship rides the ladder 260 formed on one side of the tower 240 and the tower 240 Climbing up to repair the offshore wind power generator 200.

However, the offshore wind power generator installed on the sea is not uniform in the specification of the tower and the eyepiece structure formed on one side of the tower, so that a ship having a fixed protrusion fitted to the eyepiece structure of one tower is connected to the eyepiece structure of the other tower having different specifications. There was a problem that the eyepiece was impossible.

In addition, various conventional eyepieces known in the prior art, including the above-described prior art, simply include a configuration for fixing the eyepiece to the tower, and the eyepiece structure continuously maintains the eyepiece point due to the influence of surface fluctuations due to waves and tides. I couldn't solve the unsustainable problem.

The present invention has been invented to solve the above problems, so that when the ship is docked with the offshore structure, the docking point is continuously maintained without being affected by surface fluctuation caused by waves and tides to allow the worker to stably move to the structure. The purpose is to provide a berthing maintenance system for ships for offshore structures to enable the ship.

In order to achieve the above object, the present invention provides an eyepiece maintenance system for docking a ship to a marine structure, comprising: a plate-type fixing bracket fixedly installed on the bow deck of the ship; The base platform disposed on the upper portion of the fixing bracket, the docking platform hinged to one side edge of the base platform and docked to the offshore structure, and coupled to the corner of the other side of the base platform, and the operator in the ship to the docking platform side A gangway including a passage platform that guides to move; When the lateral fluctuation (ROLL), driven fluctuation (PITCHING) or front and rear fluctuation (SURGING) caused by waves and swells, and driving the gangway in the reverse direction based on the X-axis, Y-axis or Z-axis attenuation; A motion reference unit (MRU) sensor mounted on the gangway to detect fluctuations caused by waves and tides and to measure fluctuations; The main control unit compares a value measured by the MRU sensor with a preset value to control the driving unit so that the eyepiece platform can maintain the eyepiece point continuously when fluctuations occur in the waves and troughs. A roll (ROLL) cylinder that attenuates the lateral fluctuation generated by rotating the gangway from the fixed bracket in the direction about the X axis; A pitch (PITCH) cylinder for attenuating the driven yaw generated by pivoting the eyepiece platform from the platform in the reverse direction around the Y axis when the following is caused by waves and tumbles; Includes; a surge (SURGE) cylinder to attenuate the front and rear fluctuations generated by rotating the gangway from the fixed bracket in the reverse direction around the Z axis when the front and rear fluctuations (SURGING) caused by waves and tumblers; including, a controller for controlling the drive unit And, HPU (Hydaulic Power Unit) consisting of a motor, pump, accumulator (ACCUMULATOR), control valve, etc. for driving the driving unit, and an HPU control unit that is electrically connected to the main control unit and controls the HPU to drive the driving unit And a pair of first vertical frames vertically coupled to both ends of one side edge of the base platform and a pair of second vertical frames vertically coupled to both ends of the other side edge; A first connection frame coupled along a horizontal direction to each end of the pair of first vertical frames, a second connection frame coupled along a horizontal direction to each end of the pair of second vertical frames, and the first A hinge coupling frame that is provided between the 1 connection frame and the 2nd connection frame and the both ends are vertically bent downward to be hinged to the fixed bracket, and the central portion of the first connection frame, the 2nd connection frame, and the hinge connection frame in the front-rear direction A third connecting frame is connected integrally, and when a lateral fluctuation occurs due to waves and swells, a rotation frame that causes the lateral fluctuation generated as the gangway rotates around the X axis via the hinge coupling frame; Including the inclined frame of a predetermined length installed in the diagonal direction upward with respect to the X-axis direction from the upper end of the third connecting frame; includes, the roll cylinder is disposed at an inclined wave while both ends are hinged to the inclined frame and the fixed bracket, respectively When the lateral fluctuation occurs due to the swell and the gangway, the gangway is smoothly rotated along the X axis via the roll cylinder and the rotation frame, and is characterized in that the lateral fluctuation is attenuated.

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In addition, in the present invention, the first vertical frame and the second vertical frame, both ends are hinged to the base platform and the first connection frame and the second connection frame, respectively, and the upper side of the third connection frame is the surge cylinder. A first hinge coupling hole hinged to one end is provided, and a second hinge coupling hole hinged to the other end of the surge cylinder is provided on the bottom surface of the base platform, and the second hinge coupling hole is arranged diagonally. The first vertical frame and the second vertical frame are generated in the diagonal direction of the first hinge coupling tool so that they are arranged in the direction, and when the first vertical frame and the second vertical frame are vertically erected. It is characterized in that it is rotated together with the rod of the surge cylinder so that the gangway is smoothly rotated along the Z-axis direction to attenuate back and forth fluctuations.

In addition, in the present invention, a first pitch frame having a predetermined length is vertically coupled to the center portion of the bottom surface of the base platform, and a pair of reinforcement frames for securing durability against load or sleep fluctuation on the bottom surface of both sides of the eyepiece platform and The second pitch frame is arranged to face the first pitch frame while connecting the pair of reinforcing frames, so that both ends of the pitch cylinder are hinged to the first and second pitch frames, respectively. When the driven yaw is caused by the wobbler, the eyepiece platform is smoothly rotated along the Y axis via a pitch cylinder, so as to attenuate the driven yaw.

In addition, the roll cylinder, the pitch cylinder and the surge cylinder in the present invention is characterized in that the hydraulic cylinder including a servo valve.

The present invention made as described above compares a value measured through an MRU sensor with a preset value when fluctuations caused by waves and tides occur while the ship is in contact with the offshore structure, and controls the driving unit to receive the eyepiece without being affected by sleep fluctuations. The platform can keep the docking point continuously, and this allows the manpower for maintenance to access the tower easily when docking the off-shore structure, where the tower's specifications are not constant. It can be significantly shortened and can protect workers from safety accidents.

In addition, the present invention through the roll cylinder and the rotating frame provided between the inclined frame and the fixed bracket installed diagonally upward from the upper end of the third connection frame along the X-axis direction, the gangway occurs when lateral fluctuation caused by waves and swells It is possible to maintain the eyepiece point by easily attenuating the lateral fluctuation caused by smooth rotation around the X-axis, securing the durability of the facility, and securing worker safety.

In addition, in the present invention, both ends of the pair of first vertical frames and the pair of second vertical frames are hinged, and the surge cylinders are arranged to be inclined at a predetermined angle through the first hinge fitting and the second hinge fitting. When the fluctuation of the front and rear caused by the wave and the swell, the first vertical frame and the second vertical frame are rotated through the surge cylinder and the gangway can be rotated to one side or the other side with respect to the Z axis to easily attenuate the generated front and rear fluctuations. .

In addition, according to the present invention, when a follow-up fluctuation is caused by waves and troughs through a pitch cylinder disposed in parallel between the first and second pitch frames, the eyepiece platform is smoothly rotated around the Y-axis to attenuate the follow-up fluctuation. Can.

1 to 3 is a schematic illustration of the berthing maintenance system of a marine structure vessel according to the present invention.
4 to 7 are schematic exemplified diagrams for explaining a principle in which lateral fluctuation, longitudinal fluctuation, or front and rear fluctuations are attenuated through a driving unit according to an embodiment of the present invention.
8 is an illustration of a prior art.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the berthing maintenance system of a marine structure vessel according to the present invention.

The terms or words used in the present specification and claims described below should not be construed as being limited to ordinary or dictionary meanings. The inventor should be interpreted as meanings and concepts that conform to the technical spirit of the present invention according to the principle that he can properly define his own invention as a concept of terms for explaining in the best way. Therefore, the embodiments shown in the embodiments and drawings described in this specification are only preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, and various equivalents that can replace them at the time of this application It should be understood that there may be variations.

The present invention allows the docking platform to continuously maintain the docking point from the offshore structure when the ship is at the dockside of the offshore structure and causes fluctuations due to waves and tides for maintenance of the offshore structure. In addition, the technical feature is to ensure the safety of workers during maintenance work.

For the above object, the present invention is a fixed bracket (10), a gangway (20) that is rotatably coupled from the fixed bracket, and a sway (ROLL), a follower (PITCHING) or before and after by a wave and a sole. When the shaking occurs, the driving unit 30 attenuates the generated shaking by rotating the gangway in the reverse direction based on the X-axis, Y-axis, or Z-axis, and an MRU sensor that senses the shaking of the gangway and measures the amount of shaking (Not shown) and a main control unit 40 for controlling the driving unit.

The fixing bracket 10 is fixedly installed on the bow deck of the ship, and can support the gangway 20, which is a heavy chain, so that the gangway can maintain a stable docking point from waves and shakes. It may be formed with a sufficient width and length, for example, may be formed in a rectangular shape having a predetermined area and thickness as shown in FIGS. 2 and 3.

The gangway 20 includes a base platform 21 disposed on an upper portion of the fixing bracket 10 and an berthing platform 22 coupled to an edge of one side of the base platform and docked with the offshore structure 2. , It is coupled to the other side edge of the base platform and includes a passage platform 23 to guide the operator in the ship to move to the berthing platform side.

The base platform 21, the eyepiece platform 22, and the passage platform 23 are provided with a plate-shaped plate having a predetermined width and length so as to provide a movement path of the operator. Safety railings are provided vertically.

In addition, it is preferable that the eyepiece platform 22 is hinged with the base platform 21 so as to secure fluidity against fluctuations due to waves and swells.

The driving unit 30 is a roll (ROLL) cylinder 31 for attenuating lateral fluctuations (ROLL), a pitch (PITCH) cylinder 32 for attenuating driven fluctuations (PITCHING), and surges for attenuating back and forth fluctuations ( SURGE) cylinder 33. The principle that the fluctuation is attenuated through the roll cylinder 31 and the pitch cylinder 32 and the surge cylinder 33 will be described later.

The MRU (Motion Reference Unit) sensor (not shown) is a sensor that is mounted on the gangway 20 and detects the fluctuation of the gangway due to the waves and measures the amount of fluctuation. The lateral fluctuation, the longitudinal fluctuation and the front and rear fluctuations are sensed according to the height of the waves and sent to the main controller 40 to be described later.

The main control unit 40 is provided on one side of the fixing bracket 10, compares a value measured by the MRU sensor with a preset value, and then controls the driving unit based on the calculated result to control the waves and troughs. In case of agitation, the berthing platform will keep the berthing point continuously.

In addition, the main control unit 40 includes a button unit that can select an automatic or manual operation mode for each cylinder, an operation unit that can set driving conditions for manually controlling each cylinder during manual operation, and whether or not operation values of the driving unit are set. It may include a controller (not shown) including a display screen or the like that can be checked with the naked eye.

In addition, the present invention is a HPU (Hydaulic Power Unit, 41) including a motor, a pump, a control valve and the like, and an HPU control unit (not shown) that is electrically connected to the main control unit and controls the HPU to drive the driving unit. , It includes an accumulator (ACCUMULATOR, 42) as a shock absorber for absorbing the sudden impact pressure of the working fluid.

The HPU 41 is preferably disposed inside the ship so as to prevent external exposure, and may include a plate-shaped support at the bottom to be fixed by bolting to the bottom surface. The shape of the HPU 41 shown in FIG. 2 is only an example to help understanding of the present invention and is not limited to the scope of the present invention.

The HPU control unit and the accumulator 42 are provided on the fixed bracket 10, it is preferable to be provided in a position adjacent to the drive unit 30 so that it can be easily connected to each cylinder by hydraulic piping.

In the present invention, when fluctuation is caused by waves and swells, the amount of fluctuation is measured in real time from the MRU sensor and transmitted to the main control unit 40. The main control unit calculates the average value of the measured values transmitted in real time and then calculates the average value. The reverse value (signal) is transmitted to the HPU control unit, and the HPU control unit transmits the received signal to each cylinder so that the generated fluctuation is attenuated by pulling or pulling in the load of each cylinder according to the received signal.

The present invention as described above can allow the eyepiece platform to stably maintain the eyepiece point when berthing to the offshore structure, thereby allowing the worker to stably move to the structure to quickly perform maintenance work.

Meanwhile, in the present invention, it is preferable that the roll cylinder, the pitch cylinder, and the surge cylinder use a hydraulic cylinder including a servo valve to improve the reaction speed of the gangway against fluctuations to stably maintain the eyepiece point of the eyepiece platform. Do.

In addition, the present invention, if the roll cylinder, the pitch cylinder or the surge cylinder is not operated due to external or internal factors, the main control unit immediately detects the corresponding situation, and a backup valve to quickly attenuate the generated fluctuation ( 43). Here, the backup valve 43 is composed of a roll cylinder backup valve 431, a pitch cylinder backup valve 432, and a surge cylinder backup valve 433, and is provided on the fixed bracket 10. In the drawings to help understanding of the present invention, the input and output hoses for supplying hydraulic oil to each cylinder are omitted.

Since the roll cylinder 31, the pitch sealer 32, and the surge cylinder 33 are driven at sea, it is impossible to operate due to external or internal factors, for example, when maintenance is performed for a long time in a sea where waves and tides are severe. It may be in a state, but it may not be possible to respond promptly in the event of a failure, and the engineer for countermeasures is not always on standby. When the shaking occurs, the balance of the berthing platform may collapse and a problem that the berthing point cannot be maintained may occur, which may lead to safety accidents for workers.

Therefore, when any one or more cylinders of the roll cylinder 31, the pitch sealer 32, or the surge cylinder 33 becomes inoperable, the main control unit 40 immediately drives the backup valve of the corresponding cylinder. The sway can be quickly attenuated to ensure that the berthing point of the berthing platform is maintained.

Next, FIGS. 4 to 7 are exemplary views for explaining a principle in which the transverse fluctuation, the longitudinal fluctuation, or the front and rear fluctuation are attenuated according to an embodiment of the present invention.

First, the principle of transverse fluctuation is reduced through a roll cylinder according to an embodiment of the present invention.

A pair of first vertical frames 50 are vertically coupled to both ends of one edge of the base platform 21 according to the present invention, and a pair of second vertical frames 51 are provided at both ends of the other edge. Combined vertically.

In addition, the present invention includes a rotation frame 60 that is rotatable in the X-axis direction from a fixed bracket while being coupled to the ends of the first vertical frame and the second vertical frame.

4 to 7, the rotation frame 60 includes a first connection frame 61 coupled to each end of the pair of first vertical frames 50 along a horizontal direction, and the pair of second vertical lines. A second connecting frame 62 coupled to each end of the frame 51 along a horizontal direction, and provided between the first connecting frame and the second connecting frame, but both ends are vertically bent downward to fix the bracket 10 It includes a hinge coupling frame 63 which is hinged to) and a third connection frame 64 connecting the center portion of the first connection frame, the second connection frame and the hinge connection frame in the front-rear direction.

The pivoting frame 60 is rotatable to one side or the other side along the X axis from the fixing bracket 10 via the hinge coupling frame 63 as a medium, and through the X-axis direction rotation of the pivoting frame 60, waves and swells When the lateral fluctuation caused by the gangway is rotated around the X-axis it is possible to attenuate the lateral fluctuation generated.

At the same time, the present invention is provided with an inclined frame 70 of a predetermined length in an upward diagonal direction with respect to the X-axis direction from the upper end of the third connecting frame 64, and the two ends of the roll cylinder 31 are respectively inclined. When the shaft 70 is rotated while being hinged to the frame 70 and the fixed bracket 10, the shaft of the roll cylinder is pulled out by the main control unit 40 and the HPU control unit. It can be rotated in the direction.

Next, the first vertical frame 50 and the second vertical frame 51 according to the present invention have both ends at the base platform 21, the first connecting frame 61 and the second connecting frame 62, respectively. It can be hinged.

The first vertical frame 50 and the second vertical frame 51 stand vertically when the berthing platform 22 is docked to the offshore structure 2 according to an embodiment of the present invention and is not affected by waves and swells. When viewed from the side, as shown in FIGS. 5 and 6, the side edges of the base platform, the first vertical frame, the first connection frame (or the second connection frame), and the second vertical frame form an approximately square shape.

In this state, when the front and rear fluctuations are generated by the waves and the swell, the rod of the surge cylinder 33 is pulled out and the gangway is rotated in the Z-axis direction. At this time, the first vertical frame 50 and the second vertical frame 51 By rotating along the rod of the surge cylinder 33, the base platform 21 can be guided so that the front and rear fluctuations generated while the gangway 20 rotates more smoothly in the Z axis can be attenuated.

In addition, a first hinge coupling port 80 hingedly coupled to one end of the surge cylinder 33 is provided at an upper side of the third connection frame according to the present invention, and a bottom surface of the base platform is provided with the surge cylinder. A second hinge coupling hole 81 that is hinged to the other end is provided.

Here, the second hinge coupling port 81 is provided in the upward diagonal direction of the first hinge coupling port 80 so that the surge cylinder 33 is disposed to be inclined at a predetermined angle. When it occurs, the gangway 20 can be rotated more smoothly around the Z axis so that the generated front and rear fluctuations can be easily attenuated.

In addition, a first pitch frame 90 of a predetermined length is vertically coupled to the center portion of the bottom surface of the base platform as shown in FIGS. 5 to 7, and the bottom surfaces of both corners of the eyepiece platform are provided to secure durability against load or sleep fluctuation. A pair of reinforcing frames 92 are provided, and a second pitch frame 91 disposed to face the first pitch frame while connecting the pair of reinforcing frames 92 is provided.

The pitch cylinder 32 is disposed in parallel at the bottom of the base platform 21 and the eyepiece platform 22, while both ends are hinged to the first pitch frame 90 and the second pitch frame 91, respectively.

The eyepiece platform 22 has one side hinged to the base platform 21, so that when a driven fluctuation is generated by a wave and a tumble, the rod of the pitch cylinder 32 is pulled out and the eyepiece platform 22 is moved in the Y-axis direction. Accordingly, it is possible to easily attenuate the driven yaw generated by the rotation, so that the eyepiece point of the eyepiece platform 22 can be stably maintained.

Above, the above-described embodiments and the accompanying drawings are merely illustrative of a part of the technical spirit included in the present invention. Therefore, the embodiments disclosed in the present specification are not intended to limit the technical spirit of the present invention, but to explain the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, within the scope of the technical spirit included in the specification and drawings of the present invention, all modifications and specific embodiments that can be easily inferred by those skilled in the art are included in the scope of the present invention. It should be interpreted as.

1: Ship
2: offshore structures
10: Fixed bracket
20: Gangway
21: base platform 22: eyepiece platform
23: aisle platform
30: drive unit
31: roll cylinder 32: pitch cylinder
33: surge cylinder
40: main control unit 41: HPU
42: accumulator 43: backup valve
50: first vertical frame 51: second vertical frame
60: rotating frame
61: first connection frame 62: second connection frame
63: hinge coupling frame 64: third connection frame
70: Inclined frame
80: first hinge fitting 81: second hinge fitting
90: first pitch frame 91: second pitch frame
92: reinforcement frame

Claims (6)

In the berthing maintenance system for docking the ship to the offshore structure,
A plate-shaped fixing bracket 10 fixedly installed on the bow deck of the ship; The base platform 21 disposed on the upper portion of the fixing bracket 10, the berthing platform 22 hinged to one side edge of the base platform and docked with the offshore structure, and the other side edge of the base platform A gangway 20 which is coupled and includes a passage platform 23 that guides an operator in the ship to move towards the berthing platform; When a lateral fluctuation (ROLL), driven fluctuation (PITCHING) or front-rear fluctuation (SURGING) is caused by waves and swells, a driving unit for attenuating fluctuation caused by rotating the gangway in the reverse direction based on the X-axis, Y-axis, or Z-axis )Wow; A motion reference unit (MRU) sensor mounted on the gangway to detect fluctuations caused by waves and tides and to measure fluctuations; The main control unit 40 which compares the measured value through the MRU sensor with a preset value and controls the driving unit to allow the eyepiece platform to maintain the eyepiece point continuously when fluctuations occur in the waves and troughs.
The driving unit, a roll (ROLL) cylinder to attenuate the lateral fluctuation generated by rotating the gangway from the fixing bracket in the direction about the X axis; A pitch (PITCH) cylinder for attenuating the driven yaw generated by pivoting the eyepiece platform from the platform in the reverse direction around the Y axis when the following is caused by waves and tumbles; Includes; a surge (SURGE) cylinder to attenuate the front and rear fluctuations generated by rotating the gangway from the fixed bracket in the reverse direction around the Z axis when the front and rear fluctuations (SURGING) caused by waves and tumblers; including, a controller for controlling the drive unit And, HPU (Hydaulic Power Unit) consisting of a motor, pump, accumulator (ACCUMULATOR), control valve, etc. for driving the driving unit, and an HPU control unit that is electrically connected to the main control unit and controls the HPU to drive the driving unit Including,
A pair of first vertical frames vertically coupled to both ends of one side edge of the base platform and a pair of second vertical frames vertically coupled to both ends of the other side edge;
A first connection frame coupled along a horizontal direction to each end of the pair of first vertical frames, a second connection frame coupled along a horizontal direction to each end of the pair of second vertical frames, and the first A hinge coupling frame that is provided between the 1 connection frame and the 2nd connection frame and the both ends are vertically bent downward to be hinged to the fixed bracket, and the central portion of the first connection frame, the 2nd connection frame, and the hinge connection frame in the front-rear direction A third connecting frame is connected integrally, and when a lateral fluctuation occurs due to waves and swells, a rotation frame that causes the lateral fluctuation generated as the gangway rotates around the X axis via the hinge coupling frame;
It includes; an inclined frame of a predetermined length installed in an upward diagonal direction with respect to the X-axis direction from the top of the third connection frame;
The roll cylinders are arranged obliquely as both ends are hinged to the inclined frame and the fixed bracket, respectively, and when lateral fluctuation occurs due to waves and tumbles, the gangway rotates smoothly along the X axis through the roll cylinder and the rotating frame. It is possible to attenuate the berthing maintenance system of a marine structure vessel.
delete delete According to claim 1,
In the first vertical frame and the second vertical frame, both ends are hinged to the base platform, the first connection frame, and the second connection frame, respectively.
A first hinge coupling hole hinged to one end of the surge cylinder is provided at an upper end of the third connection frame, and a second hinge coupling hole hinged to the other end of the surge cylinder is provided on the bottom surface of the base platform. Although provided, the second hinge coupling hole is provided in the diagonal direction of the first hinge coupling hole so that the surge cylinder is disposed in the diagonal direction,
When the first vertical frame and the second vertical frame vertically stand up and down and the fluctuation occurs due to the wave and the sun, the first vertical frame and the second vertical frame are rotated together with the rod of the surge cylinder so that the gangway is Z. An eyepiece maintenance system for a marine structure vessel, characterized in that it is capable of attenuating back and forth fluctuations while rotating smoothly along the axial direction.
According to claim 1,
A first pitch frame of a predetermined length is vertically coupled to the center of the bottom surface of the base platform,
A pair of reinforcing frames and a second reinforcing frame arranged to face the first pitching frame while connecting the pair of reinforcing frames are provided on the bottom surfaces of both sides of the eyepiece platform to secure durability against load or sleep fluctuation. ,
When both sides of the pitch cylinder are hinged to the first pitch frame and the second pitch frame, respectively, and when the fluctuation fluctuation is caused by waves and tumbles, the eyepiece platform rotates smoothly along the Y axis through the pitch cylinder. It is possible to attenuate the berthing maintenance system of the vessel for offshore structures.
According to claim 1, wherein the roll cylinder, the pitch cylinder and the surge cylinder is a hydraulic cylinder including a servo valve, the ship's eyepiece maintenance system for a marine structure.

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