CN113371131B - Large vertical jacking hydraulic hatch cover for marine pipe-laying ship - Google Patents
Large vertical jacking hydraulic hatch cover for marine pipe-laying ship Download PDFInfo
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- CN113371131B CN113371131B CN202110832207.5A CN202110832207A CN113371131B CN 113371131 B CN113371131 B CN 113371131B CN 202110832207 A CN202110832207 A CN 202110832207A CN 113371131 B CN113371131 B CN 113371131B
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- hatch cover
- jacking
- bolt
- mechanisms
- guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/14—Hatch covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Abstract
The application discloses a large-scale vertical jacking hydraulic hatch cover for a marine pipe-laying ship, wherein the hatch cover is used for being in tight fit connection with a deck 1 and comprises two groups of hatch covers 2 and at least four groups of jacking mechanisms 4, and each group of hatch cover 2 corresponds to at least two groups of jacking mechanisms 4; when the hatch cover 2 is in a closed state, the jacking mechanism 4 is positioned inside the cabin body 3; when the hatch cover 2 is in an open state, one part of the jacking mechanism 4 is positioned outside the cabin body 3, and the other part of the jacking mechanism is positioned inside the cabin body 3; the jacking mechanism 4 is positioned below the hatch cover 2, and the jacking mechanism 4 comprises a jacking rod 401, a hydraulic oil cylinder 402, a guide protection column 403 and a guide limiting mechanism 404 which are connected with each other. The hatch cover provided by the invention can ensure that the time for opening and closing the whole hatch cover is short, and the hatch cover can not occupy space when being opened and can not interfere with other mechanisms under the condition that the whole length of the hatch cover is more than 50 m.
Description
Technical Field
The invention belongs to the technical field of offshore pipe laying ships, and particularly relates to a large vertical jacking hydraulic hatch cover for a marine pipe laying ship.
Background
The marine pipelaying ship is special large equipment for laying submarine pipelines, and is mainly used for laying submarine oil pipelines, submarine gas pipelines and submarine water pipelines, the ship body is a carrier of pipelaying equipment, the core of the pipelaying ship is the pipelaying equipment and a pipelaying process, and the pipelaying equipment comprises a tensioner, a winch, a ship side crane, a beveling machine, a mouth aligner, nondestructive testing equipment, a demagnetizer, a heater, an auxiliary operating line, a main operating line, a pipe moving mechanism, a pipe supporting frame, an electric welding machine and the like.
At present, conventional hydraulic hatch board is generally for foldable, hinge formula or adopt the ordinary hatch board of manual formula of hanging off, in marine pipelaying class boats and ships, when the pipelaying operation line goes wrong, the seamless steel pipe that the operation line has welded need place the main deck through hydraulic pressure hatch board from the operation line layer on, because welded steel pipe length is 40 ~ 100 meters, so the whole length of hatch board need be greater than 50 meters.
In this case, the hatch covers in the related art have corresponding drawbacks that, first, the general hatch cover of the manual lift-off type is opened or closed entirely for a long time; secondly, because the cover is too large in size and has no place to place around, if a folding hydraulic hatch cover is adopted, the cover plate with the whole length of more than 50 meters also occupies more space when being folded; finally, although the hinged hydraulic hatch cover solves the spatial problem, the steel pipes of the pipe laying operation line need to be transported to the main deck by a lifter on the bulkhead above the operation line, the lifting structure interferes with the hatch cover structure, and the four oil cylinders for opening the hatch cover influence the clear space size, so the above conventional schemes can not meet the requirements.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a large vertical jacking hydraulic hatch cover for a marine pipe-laying ship, and aims to solve the technical problem of how to realize that the time for opening and closing the whole hatch cover is short, the hatch cover does not occupy space when being opened and does not interfere with other mechanisms under the condition that the whole length of the hatch cover is more than 50 meters.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:
a large-scale vertical jacking hydraulic hatch cover for a marine pipe-laying ship is used for being in tight fit connection with a deck and comprises two groups of hatch covers and at least four groups of jacking mechanisms, wherein each group of hatch cover corresponds to at least two groups of jacking mechanisms; when the hatch cover is in a closed state, the jacking mechanism is positioned inside the cabin; when the hatch cover is in an open state, one part of the jacking mechanism is positioned outside the cabin, and the other part of the jacking mechanism is positioned inside the cabin; the jacking mechanism is positioned below the hatch cover and comprises a jacking rod, a hydraulic oil cylinder, a guide protection column and a guide limiting mechanism; the hydraulic oil cylinder is fixedly connected with the inner bottom of the cabin body and comprises an oil cylinder base and a piston rod, the oil cylinder base is positioned at the bottom of the hydraulic oil cylinder, the first end of the piston rod is positioned inside the hydraulic oil cylinder, the second end of the piston rod is fixedly connected with the bottom of the jacking rod, and the top of the jacking rod is fixedly connected with the bottom of the cabin cover; the guide protection columns are positioned on the periphery of the jacking rod and fixedly connected with the inner wall of the cabin body, and when the jacking rod is in a moving state, the jacking rod moves along the extending direction of the guide protection columns; the guide limiting mechanism is positioned at the top of the guide protection column and is fixedly connected with the inner wall of the cabin body; the direction stop gear includes three at least guide pulley of group and three at least group connecting rods, the one end of connecting rod with the inner wall of the cabin body links firmly, the other end with guide pulley links firmly, guide pulley protrusion in the internal perisporium of direction guard post with the periphery wall of jacking pole cooperatees.
Optionally, the peripheral wall of the guide protection column is further provided with a pulley groove penetrating through the guide protection column, and the guide pulley is located in the pulley groove.
Optionally, the jacking mechanism further comprises at least one group of latch mechanisms, the latch mechanisms are located on the outer peripheral wall of the guide protection column, and each latch mechanism comprises two first latches which are symmetrical to each other; the outer peripheral wall of the jacking rod is also provided with two first plug pin holes, and the positions of the two first plug pin holes correspond to the positions of the two first plug pins; when the first bolt is in a working state, the first bolt is positioned in the first bolt hole; when the first bolt is in a non-working state, the first bolt is positioned outside the first bolt hole; when the number of the bolt mechanisms is more than or equal to two, the bolt mechanisms are uniformly distributed at intervals along the axial direction of the guide protection column.
Optionally, the bolt mechanism is a set, and the first bolt is perpendicular to the axis of the guide protection column.
Optionally, a stainless steel pressing strip is further arranged at the edge of the opening where the deck is matched with the hatch cover; and a rubber sealing strip is arranged at the edge of the bottom of the hatch cover and is matched and attached with the stainless steel pressing strip.
Optionally, an adjustable limiting block is further arranged between the rubber sealing strip and the stainless steel pressing strip, and is used for preventing the rubber sealing strip from being compressed excessively.
Optionally, the hatch cover further includes a locking mechanism, each group of the hatch cover corresponds to at least two groups of the locking mechanisms, the locking mechanism includes a second bolt and a second bolt hole, the second bolt is movably connected with the deck, the second bolt hole is disposed on a side wall of the hatch cover, and a position of the second bolt hole corresponds to a position of the second bolt; when the second bolt is in a working state, the second bolt is positioned in the second bolt hole; when the second bolt is in a non-working state, the second bolt is positioned outside the second bolt hole.
Optionally, the bottom of the lifting rod is further provided with a third bolt, the top of the piston rod is further provided with a third bolt hole, the position of the third bolt hole corresponds to the position of the third bolt, and the bottom of the lifting rod is fixedly connected with the top of the piston rod through the third bolt.
Optionally, the number of the jacking mechanisms is four, each group of the hatch covers corresponds to two groups of the jacking mechanisms, and the jacking mechanisms are perpendicular to the hatch covers.
Optionally, the number of the guide pulleys is three, and the guide pulleys are uniformly distributed at intervals along the central axis of the jacking rod; the jacking rod, the guide protection column and the piston rod are coaxial.
Has the advantages that: compared with the prior art, the large vertical jacking hydraulic hatch cover for the marine pipe-laying ship provided by the invention has the advantages that under the condition that the overall length of the hatch cover is more than 50 m, the overall opening and closing time of the hatch cover is short, the hatch cover does not occupy space when being opened, and the hatch cover does not interfere with other mechanisms.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a main structure of a large vertically jacking hydraulic hatch cover for a marine pipelaying vessel according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic diagram of a main structure of a large vertically jacking hydraulic hatch cover for a marine pipelaying vessel according to another exemplary embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a guide and limit mechanism for a large vertically jacking hydraulic hatch cover of a marine pipelaying vessel according to an exemplary embodiment of the present invention;
in the figure:
1-deck, 2-cabin cover, 3-cabin body, 4-jacking mechanism, 5-rubber sealing strip and 6-stainless steel pressing strip; 7-an adjustable limiting block; 8-a locking mechanism;
401-a jacking rod, 402-a hydraulic oil cylinder, 403-a guide protection column, 404-a guide limiting mechanism, 405-a bolt mechanism and 406-a third bolt;
4011-a first plug aperture; 4021-oil cylinder base; 4022-a piston rod;
4041-guide pulley; 4042-connecting rod; 4043-pulley groove;
4051-first bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, the large vertical jacking hydraulic hatch cover for a marine pipe-laying ship is used for being tightly matched and connected with a deck 1, and is characterized in that the hatch cover comprises two groups of hatch covers 2 and at least four groups of jacking mechanisms 4, wherein each group of hatch cover 2 corresponds to at least two groups of jacking mechanisms 4; when the hatch cover is in a closed state, the jacking mechanism 4 is positioned inside the cabin 3; when the hatch cover is in an open state, one part of the jacking mechanism 4 is positioned outside the cabin 3, and the other part is positioned inside the cabin 3; the jacking mechanism 4 is positioned below the hatch cover 2, and the jacking mechanism 4 comprises a jacking rod 401, a hydraulic oil cylinder 402, a guide protection column 403 and a guide limiting mechanism 404.
The hydraulic cylinder 402 is fixedly connected to the inner bottom of the nacelle 3, and optionally, the hydraulic cylinder 402 is connected to the inner bottom of the nacelle 3 by one of, but not limited to, welding, riveting, gluing, and bolting.
The hydraulic oil cylinder 402 comprises an oil cylinder base 4021 and a piston rod 4022, the oil cylinder base 4021 is located at the bottom of the hydraulic oil cylinder 402, a first end of the piston rod 4022 is located inside the hydraulic oil cylinder 402, a second end of the piston rod 4022 is fixedly connected with the bottom of the lifting rod 401, and optionally, the connection mode of the second end of the piston rod 4022 and the bottom of the lifting rod 401 includes but is not limited to one of welding, riveting, gluing and bolt fixing.
The top of the lifting rod 401 is fixedly connected to the bottom of the hatch 2, and optionally, the top of the lifting rod 401 is connected to the bottom of the hatch 2 by one of, but not limited to, welding, riveting, gluing, and bolting.
The guide protection column 403 is positioned on the periphery of the jacking rod 401, the guide protection column 403 is fixedly connected with the inner wall of the cabin body 3, the highest point of the top of the guide protection column 403 is positioned below the deck 1, and when the jacking rod 401 is in a moving state, the jacking rod 401 moves along the extending direction of the guide protection column 403, so that the cabin cover 2 is opened and closed; the guiding and limiting mechanism 404 is located at the top of the guiding and protecting column 403, the guiding and limiting mechanism 404 is fixedly connected with the inner wall of the cabin 3, and optionally, the connecting manner of the guiding and limiting mechanism 404 and the inner wall of the cabin 3 includes but is not limited to one of welding, riveting, gluing and bolt fixing. This direction guard post 403 and direction stop gear 404's setting has realized the guide effect to jacking rod 401, has guaranteed that jacking rod 401 can not produce the position deviation when rising or descending, and then can not lead to producing the position deviation when hatch 2 closes, can not influence the leakproofness when hatch closes.
The guiding and limiting mechanism 404 includes at least three sets of guiding pulleys 4041 and at least three sets of connecting rods 4042, one end of the connecting rod 4042 is fixedly connected to the inner wall of the cabin 3, and optionally, the connection manner of one end of the connecting rod 4042 to the inner wall of the cabin 3 includes, but is not limited to, one of welding, riveting, gluing and bolt fixing; the other end of the connecting rod 4042 is fixedly connected to the guide pulley 4041, and optionally, the other end of the connecting rod 4042 is connected to the guide pulley 4041 by one of, but not limited to, welding, riveting, gluing, and bolting; the guide pulley 4041 protrudes from the inner peripheral wall of the guide protection column 403 to be matched with the outer peripheral wall of the lifting rod 401, so as to realize the guiding and positioning function when the lifting rod 401 ascends or descends.
In this embodiment, when the hatch cover needs to be opened, the hydraulic cylinder 402 is started, so that the piston rod 4022 drives the lifting rod 401 to move upward along the guide protection post 403, and as the lifting rod 401 drives the hatch cover 2 to lift, a part of the lifting rod 401 is higher than the deck 1 and extends out of the guide protection post 403; when the hatch cover needs to be closed, the hydraulic oil cylinder 402 is started, the piston rod 4022 drives the jacking rod 401 to move downwards along the guide protection column 403, and as the jacking rod 401 drives the hatch cover 2 to fall to be completely attached to the opening of the deck 1, the jacking rod 401 retracts into the guide protection column 403; the guide pulley 4041 prevents the lifting rod 401 from deviating during movement, thereby ensuring the sealing performance when the hatch cover is closed. This four group at least climbing mechanisms 4's setting makes cabin cover 2 not need fold when rising, has realized under the whole length of hatch board is greater than 50 meters's the condition, can guarantee that the whole time of opening and closure of hatch board is shorter, can also realize that the hatch board does not take up space when opening to can not mutually interfere with other mechanisms.
In this embodiment, the hydraulic cylinders 402 are connected with hydraulic pumps, which are implemented in a double pump form, and each hydraulic pump is connected with one of the jacking mechanisms 4. Alternatively, the dual pump may be integrated with hydraulic cylinder 402 and implemented as a part of hydraulic cylinder 402, or may be implemented as a device separate from the hatch cover and operatively connected to the hatch cover only to control hydraulic cylinder 402, and the specific implementation form of the hydraulic pump is not limited in this application.
As an alternative embodiment, as shown in fig. 3, the peripheral wall of the guiding protection column 403 further has a pulley groove 4043 therethrough, and the guiding pulley 4041 is fixedly connected to the pulley groove 4043, and optionally, the connecting manner of the guiding pulley 4041 and the pulley groove 4043 includes, but is not limited to, one of welding, riveting, gluing and bolt fixing.
In this embodiment, the pulley groove 4043 is an installation groove with a hollow interior for installing the guide pulley 4041; alternatively, the pulley groove 4043 may be other space for fixing the guide pulley 4041, such as a circular through hole having a diameter larger than that of the guide pulley 4041, a rectangular through hole, or the like.
As an alternative embodiment, as shown in fig. 2, the jacking mechanism 4 further includes at least one set of latch mechanisms 405, the latch mechanisms 405 are located on the outer peripheral wall of the guiding protection column 403, and optionally, the latch mechanisms 405 are connected to the outer peripheral wall of the guiding protection column 403 by a method including, but not limited to, one of welding, riveting, gluing and bolt fixing; the latch mechanism 405 includes two first latches 4051 that are symmetrical to each other; the outer circumferential wall of the lifting rod 401 is also provided with two first plug holes 4011, and the positions of the two first plug holes 4011 correspond to the positions of the two first plugs 4051; when the first latch 4051 is in the operating state, the first latch 4051 is positioned in the first latch hole 4011; when the first latch 4051 is in the non-operating state, the first latch 4051 is positioned outside the first latch hole 4011; when the latch mechanisms 405 are more than or equal to two groups, the latch mechanisms 405 are evenly distributed along the axial direction of the guide protection column 403 at intervals.
In this embodiment, when the hatch 2 is lifted into position, the latch mechanism 405 is in an operating state, and the first latch 4051 extends into the first latch hole 4011 of the lifting rod 401, so as to prevent the hydraulic cylinder 402 from malfunctioning, and thus the lifting rod 401 and the hatch 2 from falling downward.
As an alternative embodiment, as shown in fig. 2, the latch mechanism 405 is a set, and the first latch 4051 is perpendicular to the axis of the guiding guard 403. In another example, the latch mechanisms 405 are in three groups, which provides a significant increase in sustainable weight. Alternatively, the number of latch mechanisms 405 may be flexibly arranged according to the specific operating conditions, i.e., the weight of the lifting rod 401 and the hatch cover 2.
As an alternative embodiment, as shown in fig. 2, the deck 1 further has a stainless steel pressing strip 6 at the edge of the opening where the hatch cover is fitted, and optionally, the connection manner between the edge of the opening of the deck 1 and the stainless steel pressing strip 6 includes, but is not limited to, one of welding, riveting, gluing and bolting; the bottom edge of the hatch 2 is provided with a rubber sealing strip 5, and optionally, the bottom edge of the hatch 2 is connected with the rubber sealing strip 5 by one of but not limited to welding, riveting, gluing and bolt fixing; the rubber sealing strip 5 is tightly attached to the stainless steel pressing strip 6.
In the present embodiment, when the hatch cover is in the closed state, the arrangement of the rubber sealing strip 5 and the stainless steel pressing strip 6 ensures the sealing performance between the deck 1 and the hatch cover 2.
As an alternative embodiment, as shown in fig. 2, an adjustable stop block 7 is further provided between the rubber sealing strip 5 and the stainless steel pressing strip 6 for preventing excessive compression of the rubber sealing strip 5.
As an alternative embodiment, as shown in fig. 2, the hatch cover further includes locking mechanisms 8, each group of hatch covers 2 corresponds to at least two groups of locking mechanisms 8, the locking mechanisms 8 include second bolts and second bolt holes, and the second bolts are movably connected with the deck 1; the second bolt hole is formed in the side wall of the cabin cover 2, and the position of the second bolt hole corresponds to that of the second bolt; when the second bolt is in a working state, the second bolt is positioned in the second bolt hole; when the second bolt is in the non-working state, the second bolt is positioned outside the second bolt hole.
Under the condition that the locking mechanism 8 ensures that the two groups of hatch covers are respectively fixed with the deck 1, a structure for sealing is arranged between the two groups of hatch covers 2, so that the combination of the deck 1 and the hatch covers can completely seal the space in the cabin body when the hatch covers are in a closed state. In one example, two hatches 2 are connected by a sealing strip and are correspondingly provided with a stepped structure so as to be sealed against each other when in contact with each other.
In this embodiment, when the hatch cover is in a closed state, the locking mechanism 8 is activated, the second bolt extends into the second bolt hole, and the arrangement of the locking mechanism 8 enables the rubber sealing strip 5 on the hatch cover 2 to be attached to the stainless steel pressing strip 6 on the deck 1, so that the sealing performance of the matching position of the hatch cover 2 and the deck 1 is ensured. Optionally, the number of the locking mechanisms 8 can be flexibly arranged according to specific working conditions.
As an alternative embodiment, as shown in fig. 2, the bottom of the lifting rod 401 further has a third pin 406, and optionally, the bottom of the lifting rod 401 is connected to the third pin 406 by a method including, but not limited to, one of welding, riveting, gluing, and bolting; the top of the piston rod 4022 is further provided with a third bolt hole, the position of the third bolt hole corresponds to the position of the third bolt 406, and the bottom of the jacking rod 401 is fixedly connected with the top of the piston rod 4022 through the third bolt 406; when the third pin 406 is in the working state, the third pin 406 is positioned in the third pin hole; when the third pin 406 is in the inoperative position, the third pin 406 is positioned outside of the third pin hole.
In this embodiment, the fixing of the lifting rod 401 to the piston rod 4022 is achieved by inserting the third pin 406 into the third pin hole.
As an alternative embodiment, as shown in fig. 2, the number of the jacking mechanisms 4 is four, each group of the hatch cover 2 corresponds to two groups of the jacking mechanisms 4, and the jacking mechanisms 4 are perpendicular to the hatch cover 2. In another example, the number of the jacking mechanisms 4 is six, and each group of the hatch cover 2 corresponds to three groups of the jacking mechanisms 4, so that the weight of the hatch cover 2 can be borne, and the lifting is greatly improved. Alternatively, the number of the jacking mechanisms 4 can be flexibly arranged according to specific working conditions, namely the weight of the hatch cover 2.
As an alternative embodiment, as shown in fig. 3, the number of the guide pulleys 4041 is three, and the guide pulleys 4041 are uniformly spaced along the central axis of the lifting rod 401; the jacking rod 401, the guide protection column 403 and the piston rod 4022 are coaxial. In another example, the number of the guide pulleys 4041 is six, and the friction between the lifting rod 401 and the guide pulleys 4041 is reduced, which is smoother when the lifting rod 401 moves up and down, and which is more precise in guiding and positioning the lifting rod 401. Optionally, the number of guide pulleys 4041 may be flexibly arranged according to specific working conditions.
For a better understanding of the present invention, reference is made to the following description of the invention taken in conjunction with the accompanying drawings and a specific embodiment. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and do not limit the protection scope of the present invention.
In this embodiment, in order to solve the problems that the time for opening and closing the whole hatch cover is long, the hatch cover occupies a large space when being opened, and the hatch cover interferes with other mechanisms when being opened under the condition that the whole length of the hatch cover is greater than 50 meters, the large vertical jacking hydraulic hatch cover for the marine pipelaying ship, which is described in any one of the above embodiments, is used, and the control principle of the hatch cover is as follows:
when the number of the hatches is two, the two hatches are the first hatches and the second hatches, at this time, the jacking mechanism corresponding to the first hatches is the first jacking mechanism, and the jacking mechanism corresponding to the second hatches is the second jacking mechanism.
The hatch cover is controlled by one of, but not limited to, electric control manual operation, operation box manual operation and PLC (Programmable Logic Controller) control operation, which are respectively as follows:
1. electric control manual operation (local operation of an operation box, no PLC interlocking):
a. selecting the operation box 'operation selection' as 'local';
b. selecting "operating mode" as "manual" mode;
c. selecting "manual mode" as "no interlock manual";
d. the 'main switch' is selected to be in an 'opening' position, a 'starting motor' button is pressed, and the hydraulic oil cylinder is driven to drive the first jacking mechanism and the second jacking mechanism to operate;
e. and observing the position state of each bolt and the relative position of the first hatch cover and the second hatch cover, when each bolt is in a release position, respectively rotating the first hatch cover or the second hatch cover to an opening position or a closing position, wherein the opening position corresponds to the hatch cover to perform opening action, and an opening indicating lamp red light is normally on after the bolt is opened in place. The closing position is to close the corresponding hatch, and the green light of the closing indicating lamp is normally on after the closing indicating lamp is closed in place;
f. observing the position state of the hatch cover, and when the hatch cover is in a closed or opened in-place state, operating a knob for closing a first bolt or opening the first bolt of the first hatch cover or the second hatch cover respectively, wherein the red light of the indicator light is normally on when the first bolt is in a relaxed in-place state, and the green light of the indicator light is normally on when the first bolt is in a locked in-place state;
g. when the two hatches are obviously asynchronous and inclined in the opening or closing process, the hatches can be adjusted to a certain extent through the corresponding unloading knobs (for example, when the hatches are inclined to the right due to the fact that the oil cylinder on the left side of the first hatches runs at an excessively high speed in the opening process, the first hatches can be adjusted by selecting the ' left ' unloading ' knob);
h. the two cover plates can be respectively selected to be opened or closed at a slow speed in the lifting process.
In the operation mode, PLC interlocking protection is not provided, all the first bolts must be confirmed to be in the release positions before the cabin cover is operated, and bolt actions can be carried out after the cabin cover is in place. The first hatch cover is always above the second hatch cover, and the first hatch cover should be opened and closed first during operation, and the relative position between the two hatch covers is noticed, so as to prevent collision.
2. Manual operation of the operation box (local operation of the operation box, PLC interlocking):
a. selecting the operation box 'operation selection' as 'local';
b. selecting "operating mode" as "manual" mode;
c. selecting "manual mode" as "interlocked manual";
d. the 'main switch' is selected to be in an 'opening' position, a 'starting motor' button is pressed, and the hydraulic oil cylinder is driven to drive the first jacking mechanism and the second jacking mechanism to operate;
e. the first hatch cover or the second hatch cover is respectively operated, the two cover plates can be respectively opened or closed, the red light of the 'opening' indicator light is normally on after the cover plates are opened in place, and the green light of the 'closing' indicator light is normally on after the cover plates are closed in place;
f. when the hatch cover is in an open or closed in-place state, a knob of a first closing bolt or a first lifting bolt of the first hatch cover or the second hatch cover can be respectively operated, the first bolt is in a loosened in-place state, the red light of the indicator light is normally on, the first bolt is in a locked in-place state, and the green light of the indicator light is normally on;
g. the hatch cover is obviously inclined when the two cover plates are asynchronous in the opening or closing process, and can be adjusted by corresponding hatch cover unloading knobs;
h. the two cover plates can be respectively selected to be opened or closed at a slow speed in the lifting process.
There is PLC interlocking protection between two apron boards under this mode of operation, sets for safe height between first cabin cover and the second cabin cover, can effectively prevent the collision of two cabin covers through PLC when operating the cabin cover promptly, will automatic shutdown when two cabin cover relative position are less than safe apart from the height.
There is PLC interlocking protection between two apron boards under this mode of operation, sets for safe height between first cabin cover and the second cabin cover, can effectively prevent the collision of two cabin covers through PLC when operating the cabin cover promptly, will automatic shutdown when two cabin cover relative position are less than safe apart from the height.
3. PLC control operation (local operation of operation box, PLC interlock)
a. Selecting the A205 operation box 'operation selection' as 'local';
b. selecting "operation mode" as "automatic" mode;
c. selecting "automatic mode" as "latch-free automatic";
d. selecting a "forced off" mode as "off";
e. the 'main switch' is selected to be in an 'opening' position, and the 'starting motor' is pressed down to drive the hydraulic oil cylinder to drive the first jacking mechanism and the second jacking mechanism to operate;
f. pressing a query button, and after the first jacking mechanism and the second jacking mechanism reach the target positions, enabling an indicator lamp that the jacking mechanism is in the parking position to be normally on (in an automatic mode, forced closing is performed in a closing mode, and only after a confirmation signal of the jacking mechanism is received, the hydraulic hatch cover can be operated);
g. the method comprises the following steps that an 'opening' button is pressed, a first hatch is opened in advance, a second hatch is opened synchronously after being opened to a safe height, a 'closing' button is pressed, the second hatch is closed in advance, the first hatch is closed synchronously after being closed to the safe height, in the operation mode, a first bolt is in a loosening state all the time in the operation process of the hatch, and no bolt is used for locking after the hatch is opened or closed in place;
h. in the automatic mode, the time for opening or closing the hatch cover is about 2 minutes each time, and the operation time is possibly increased in the low-temperature environment when the environment temperature is +20 ℃;
i. in the opening/closing operation process of the hatch cover, the hatch cover is accompanied with the operation of the audible and visual alarm, and the red light of the panel 'opening' or 'closing' of the operation box flickers;
j. and the hatch cover is separated from the operation button in the operation process, the hatch cover stops running and stays at the current position, the operation button is pressed again, and the hatch cover continues to run.
Corresponding to the above process, the setting of the corresponding control should be performed in the operation box, and the setting of the corresponding sensor and controller such as the temperature sensor and the plug pin control device should be performed in the hatch cover, which is not described herein again.
In conclusion, the large vertical jacking hydraulic hatch cover for the offshore pipelaying ship provided by the invention can ensure that the time for opening and closing the whole hatch cover is short, the hatch cover can not occupy space when being opened, and the hatch cover does not interfere with other mechanisms under the condition that the whole length of the hatch cover is greater than 50 m.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (10)
1. A large-scale vertical jacking hydraulic hatch cover for a marine pipe-laying ship, the hatch cover is used for being in close fit connection with a deck (1), and is characterized in that the hatch cover comprises two groups of hatch covers (2) and at least four groups of jacking mechanisms (4), and each group of hatch cover (2) corresponds to at least two groups of jacking mechanisms (4);
when the hatch cover is in a closed state, the jacking mechanism (4) is positioned inside the cabin (3);
when the hatch cover is in an open state, one part of the jacking mechanism (4) is positioned outside the cabin (3), and the other part of the jacking mechanism is positioned inside the cabin (3);
the jacking mechanism (4) is positioned below the hatch cover (2), and the jacking mechanism (4) comprises a jacking rod (401), a hydraulic oil cylinder (402), a guide protection column (403) and a guide limiting mechanism (404);
the hydraulic oil cylinder (402) is fixedly connected with the inner bottom of the cabin body (3), the hydraulic oil cylinder (402) comprises an oil cylinder base (4021) and a piston rod (4022), the oil cylinder base (4021) is positioned at the bottom of the hydraulic oil cylinder (402), the first end of the piston rod (4022) is positioned inside the hydraulic oil cylinder (402), the second end of the piston rod (4022) is fixedly connected with the bottom of the jacking rod (401), and the top of the jacking rod (401) is fixedly connected with the bottom of the cabin cover (2);
the guide protection column (403) is positioned on the periphery of the jacking rod (401), the guide protection column (403) is fixedly connected with the inner wall of the cabin body (3), and when the jacking rod (401) is in a moving state, the jacking rod (401) moves along the extending direction of the guide protection column (403);
the guide limiting mechanism (404) is positioned at the top of the guide protection column (403), and the guide limiting mechanism (404) is fixedly connected with the inner wall of the cabin body (3);
direction stop gear (404) include three at least sets of guide pulley (4041) and three at least sets of connecting rod (4042), the one end of connecting rod (4042) with the inner wall of the cabin body (3) links firmly, the other end with guide pulley (4041) links firmly, guide pulley (4041) protrusion in the internal perisporium of direction guard post (403) with the periphery wall of jacking pole (401) cooperatees.
2. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessels according to claim 1, characterized in that the peripheral wall of the guiding protection column (403) also has a pulley groove (4043) therethrough, the guiding pulley (4041) being located in the pulley groove (4043).
3. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessels according to claim 1, characterized in that the jacking mechanism (4) further comprises at least one set of latch mechanisms (405), the latch mechanisms (405) being located on the outer peripheral wall of the guide protection column (403), the latch mechanisms (405) comprising two first latches (4051) that are symmetrical to each other;
the outer peripheral wall of the jacking rod (401) is also provided with two first plug holes (4011), and the positions of the two first plug holes (4011) correspond to the positions of the two first plugs (4051);
when the first bolt (4051) is in the working state, the first bolt (4051) is located in the first bolt hole (4011);
when the first bolt (4051) is in the non-working state, the first bolt (4051) is located outside the first bolt hole (4011);
when the number of the bolt mechanisms (405) is larger than or equal to two, the bolt mechanisms (405) are uniformly distributed at intervals along the axial direction of the guide protection column (403).
4. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessels according to claim 3, characterized in that the latch mechanism (405) is a set, the first latch (4051) and the guide protection column (403) are perpendicular to each other.
5. A large vertical jacking hydraulic hatch cover for pipe-laying marine vessels according to claim 1, characterized in that the deck (1) also has stainless steel hold-down strips (6) at the edge of the hatch cover mating opening;
the edge of the bottom of the hatch cover (2) is provided with a rubber sealing strip (5), and the rubber sealing strip (5) is matched and attached with the stainless steel pressing strip (6).
6. A large vertical jacking hydraulic hatch cover for pipe-laying marine vessels according to claim 5, characterized in that there is also an adjustable stop block (7) between the rubber sealing strip (5) and the stainless steel hold-down strip (6) for preventing excessive compression of the rubber sealing strip (5).
7. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessels according to claim 1, characterized in that it further comprises locking mechanisms (8), each set of hatch cover (2) corresponding to at least two sets of locking mechanisms (8), said locking mechanisms (8) comprising a second pin movably connected with said deck (1) and a second pin hole provided on the side wall of said hatch cover (2), the position of said second pin hole corresponding to the position of said second pin;
when the second bolt is in a working state, the second bolt is positioned in the second bolt hole;
when the second bolt is in a non-working state, the second bolt is positioned outside the second bolt hole.
8. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessel at sea according to claim 1, characterized in that the bottom of the jacking rod (401) further has a third bolt (406), the top of the piston rod (4022) further has a third bolt hole, the position of the third bolt hole corresponds to the position of the third bolt (406), and the bottom of the jacking rod (401) is fixedly connected with the top of the piston rod (4022) through the third bolt (406).
9. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessel according to claim 1, characterized in that the number of jacking mechanisms (4) is four, each set of hatch cover (2) corresponds to two sets of jacking mechanisms (4), and the jacking mechanisms (4) and the hatch cover (2) are perpendicular to each other.
10. The large vertical jacking hydraulic hatch cover for pipe-laying marine vessel according to claim 1, characterized in that the number of guide pulleys (4041) is three, the guide pulleys (4041) are evenly spaced along the central axis of the jacking rod (401);
the jacking rod (401), the guide protection column (403) and the piston rod (4022) are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110832207.5A CN113371131B (en) | 2021-07-22 | 2021-07-22 | Large vertical jacking hydraulic hatch cover for marine pipe-laying ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110832207.5A CN113371131B (en) | 2021-07-22 | 2021-07-22 | Large vertical jacking hydraulic hatch cover for marine pipe-laying ship |
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| CN113371131A CN113371131A (en) | 2021-09-10 |
| CN113371131B true CN113371131B (en) | 2022-03-08 |
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| CN202110832207.5A Active CN113371131B (en) | 2021-07-22 | 2021-07-22 | Large vertical jacking hydraulic hatch cover for marine pipe-laying ship |
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| CN115056914B (en) * | 2022-06-20 | 2023-10-27 | 中船黄埔文冲船舶有限公司 | Ship and hatch cover rubber strip compression amount adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD265597A1 (en) * | 1987-10-15 | 1989-03-08 | Volkswerft Stralsund Veb | MOBILE DECK AREA ON SHIPS |
| FI20002713A0 (en) * | 1999-12-30 | 2000-12-11 | Oy Langh Ship Ab | Procedure and arrangement for transporting rolls of ships, intermediate decks and intermediate decks in a cargo hold |
| EP3326900B1 (en) * | 2008-02-15 | 2020-11-04 | Itrec B.V. | Offshore drilling vessel |
| KR20140012289A (en) * | 2012-07-19 | 2014-02-03 | 대우조선해양 주식회사 | Hatch cover structure and pipe laying support vessel comprising the same |
| CN203681840U (en) * | 2013-12-19 | 2014-07-02 | 浙江增洲造船有限公司 | Ship hatch cover jacking device |
| GB2526134B (en) * | 2014-05-15 | 2016-09-14 | Technip France | Moonpool with two sets of transversely operating table doors |
| CN214296331U (en) * | 2021-01-22 | 2021-09-28 | 上海振华重工(集团)股份有限公司 | Vertical lifting hydraulic hatch cover |
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