CN115610609A - Deformation control method and auxiliary deformation control device for ship body segment folding seam - Google Patents
Deformation control method and auxiliary deformation control device for ship body segment folding seam Download PDFInfo
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- CN115610609A CN115610609A CN202211079402.6A CN202211079402A CN115610609A CN 115610609 A CN115610609 A CN 115610609A CN 202211079402 A CN202211079402 A CN 202211079402A CN 115610609 A CN115610609 A CN 115610609A
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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
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
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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
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
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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
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
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Abstract
The application relates to the technical field of ships, in particular to a deformation control method and a deformation control auxiliary device for a ship body section folding seam. According to the ship body section folding seam deformation control method, the deformation of the main deck of the ship body section is corrected in real time by adopting the deformation control auxiliary device, so that the upper surface of the main deck of the first ship body section is straight with the surface of the main deck of the second ship body section. Compare the mode of strengthening through the horse board at present, the welding deformation control degree of difficulty that the deflection of real-time correction deck can effectively reduce the aluminum alloy ship reduces and welds the back and warp the correction work load.
Description
Technical Field
The application relates to the technical field of ships, in particular to a deformation control method and a deformation control auxiliary device for a ship body section closure seam.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
The aluminum alloy ship structure adopts a longitudinal skeleton type and comprises a deck, an outer plate, an inclined bottom plate, longitudinal and transverse bulkheads, a cross beam and the like. The aluminum alloy ship has large structural density and complex form. Because the aluminum alloy material has higher thermal conductivity and larger thermal expansion coefficient, the aluminum alloy material is very easy to generate oxidation in the air, air holes, cracks and the like are easy to generate during welding, the welding deformation of the aluminum alloy ship is far larger than that of a steel ship, particularly, when a ship body is built in a segmented mode, the middle area of the buoyancy tank is not supported by a continuous longitudinal bulkhead, only the deck surface is reinforced by a conventional horse plate, the constraint is insufficient during large seam welding, and severe wave deformation and concave phenomenon exist after welding, so that the water accumulation of the open deck is obvious, and the performance of the ship is influenced. To sum up, the problem that the welding deformation control is difficult, the deformation correction workload after welding is large and the precision requirement is difficult to guarantee exists in the existing aluminum alloy ship.
Disclosure of Invention
The embodiment of the application aims to provide a hull section folding seam deformation control method, which is used for reducing the welding deformation control difficulty of an aluminum alloy ship and reducing the deformation correction workload after welding.
Another object of the embodiments of the present application is to provide a hull section folding seam deformation control auxiliary device for assisting in implementing the above control method.
In a first aspect, a method for controlling deformation of a ship body segment folding seam is provided, which comprises the following steps:
1) Before a first ship body section needing to be folded and a second ship body section are folded, marking a related mark line on a slipway;
2) Hoisting the first ship body section and the second ship body section to a slipway, and positioning the first ship body section and the second ship body section to be folded so that the folding opening of the first ship body section is opposite to the folding opening of the second ship body section in the left-right direction;
3) A plurality of deformation control auxiliary devices are arranged at the front and back intervals at the folding seam of the first ship body section and the second ship body section, one part of the upper end of each deformation control auxiliary device is propped against the lower side surface of the main deck of the first ship body section, and one part of the upper end of each deformation control auxiliary device is propped against the lower side surface of the main deck of the second ship body section; one part of the lower end of the deformation control auxiliary device is propped against the upper side surface of the outer bottom plate of the ship body at the bottom of the first ship body segment, and the other part of the lower end of the deformation control auxiliary device is propped against the upper side surface of the outer bottom plate of the ship body at the bottom of the second ship body segment;
4) The deformation control auxiliary device comprises a lifting mechanism for adjusting the height of the deformation control auxiliary device, each deformation control auxiliary device is operated, the height of each deformation control auxiliary device is adjusted, and the upper surface of the main deck of the first ship body section and the upper surface of the main deck of the second ship body section are straight by upwards jacking the main deck of the first ship body section and the main deck of the second ship body section;
5) Welding the upper side surface of the main deck of the first ship body section and the upper side surface of the main deck of the second ship body section, observing the welding quality and the deformation condition of the closure joint in real time in the welding process, adjusting the height of the deformation control auxiliary device according to the actual deformation, keeping the surface of the main deck straight, and withdrawing the deformation control auxiliary device after welding.
In one possible embodiment, step 2) comprises: and after the first ship body segment and the second ship body segment are positioned, welding the outer bottom plate of the first ship body segment and the outer bottom plate of the second ship body segment.
In a possible embodiment, step 2) further comprises, after positioning the first hull section and the second hull section, performing back-sealing welding on the lower side of the main deck of the first hull section and the lower side of the main deck of the second hull section.
In a possible embodiment, the upper end of the deformation control aid is spot-welded to the main deck of the first hull section and to the main deck of the second hull section; the lower end of the deformation control auxiliary device is fixed with the outer bottom plate of the first ship body section in a spot welding mode, and is fixed with the outer bottom plate of the second ship body section in a spot welding mode.
The second aspect further provides a ship body section folding seam deformation control auxiliary device which comprises a top seat, a base and a lifting mechanism positioned between the top seat and the base, wherein the top seat is used for jacking a main deck of a first ship body section and a main deck of a second ship body section which need to be folded, and the base is used for jacking a ship body outer bottom plate of the first ship body section and a ship body outer bottom plate of the second ship body section; the footstock is provided with a first ship body acting part used for jacking and pressing the main deck of the first ship body segment and a second ship body acting part used for jacking and pressing the main deck of the second ship body segment, the first ship body acting part and the second ship body acting part are arranged at left and right intervals, an avoiding groove is formed between the first ship body acting part and the second ship body acting part, and the avoiding groove is used for avoiding a welding seam of the main deck of the first ship body segment and the main deck of the second ship body segment.
In a possible implementation scheme, the lifting mechanism comprises a top seat connecting column fixed with the top seat, a base connecting column fixed with the base, and an adjusting screw rod, the upper end of the adjusting screw rod is in threaded connection with the top seat connecting column, the lower end of the adjusting screw rod is in threaded connection with the base connecting column, and the thread turning direction of the upper end of the adjusting screw rod is opposite to that of the lower end of the adjusting screw rod.
In one possible embodiment, the adjusting screw has an operating section in the middle, which has an operating hole for inserting an operating tool.
In a possible implementation scheme, the top seat connecting column comprises a top seat connecting pipe and an upper bushing inserted into the top seat connecting pipe, the upper bushing is fixed with the top seat connecting pipe, and the upper bushing is in threaded connection with the adjusting screw rod.
In the scheme that a probably was implemented, the footstock included footstock floor and footstock piece, and the footstock floor inserts elevating system's footstock spliced pole, and the footstock piece is fixed with footstock floor and footstock spliced pole simultaneously, dodges the groove setting on the footstock piece.
In a possible implementation scheme, the base comprises a base plate, the base plate is welded and fixed with the base connecting column, and a reinforcing rib plate is arranged between the base connecting column and the base.
The application has the following beneficial effects: according to the ship body section folding seam deformation control method, the deformation of the main deck of the ship body section is corrected in real time by adopting the deformation control auxiliary device, so that the upper surface of the main deck of the first ship body section is straight with the surface of the main deck of the second ship body section. Compare the mode of strengthening through the horse board at present, the deflection of correcting the deck in real time can effectively reduce the welding deformation control degree of difficulty of aluminum alloy ship, reduces and welds back deformation correction work load.
Furthermore, before the deformation control auxiliary device is placed, the outer bottom plate of the hull of the first hull section is welded with the outer bottom plate of the hull of the second hull section, so that the strength of the outer bottom plate of the hull is further improved, and the deformation of the outer bottom plate of the hull is reduced.
Furthermore, the lower side surface of the main deck of the first ship body section and the lower side surface of the main deck of the second ship body section are subjected to back cover welding, so that the accurate positioning of the main deck of the first ship body section and the second main deck is facilitated, and the installation of the deformation control auxiliary device is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a first hull section and a second hull section according to an embodiment of a hull section folding seam deformation control method of the application;
fig. 2 is a schematic view of an installation state of a hull section folding seam deformation control auxiliary device according to an embodiment of the hull section folding seam deformation control method of the present application (a second hull section is not shown);
FIG. 3 is a cross-sectional view of a first hull section being folded with a second hull section according to an embodiment of the hull section folding seam deformation control method of the present application;
FIG. 4 is a schematic structural diagram of a hull section closure joint deformation control auxiliary device according to an embodiment of the hull section closure joint deformation control method of the present application;
FIG. 5 is a schematic view of the adjusting screw of FIG. 4;
FIG. 6 is a schematic view of the bushing of FIG. 4;
FIG. 7 is a top view of the base of FIG. 4;
FIG. 8 is a side view of the top block of FIG. 4;
in the figure: 1. a main deck; 2. an outer bottom plate of the hull; 3. a sectional folding opening; 4. placing piers; 5. wood corrugation; 6. a first hull section; 7. a second hull section; 8. folding seams in sections; 9. a deformation control assistance device; 10. adjusting the screw rod; 101. an operation section; 102. an operation hole; 11. a top seat connecting column; 111. a top seat connecting pipe; 112. an upper bushing; 12. a base connection column; 121. a base connecting pipe; 122. a lower bushing; 14. a base; 141. a base plate; 142. a reinforcing rib plate; 15. a top seat; 151. a first hull action portion; 152. a second hull action portion; 153. an avoidance groove; 154. a top seat rib plate; 155. and a top seat block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
According to a first aspect of the application, a method for controlling deformation of a ship body segment folding seam is provided, and as shown in fig. 1 to 8, the method in the embodiment is used for controlling an auxiliary device for controlling deformation of the ship body segment folding seam.
In this embodiment, as shown in fig. 1, the two hull sections to be folded are a first hull section 6 and a second hull section 7, respectively. The first hull section 6 is a port pontoon section and the second hull section 7 is a starboard pontoon section. The first ship body section 6 and the second ship body section 7 are in butt joint and closure from left to right, and a closure seam extends forwards and backwards. As shown in fig. 1, a main deck 1 and a hull outer bottom plate 2 are sequentially arranged on a hull section of the aluminum alloy ship from top to bottom, a folding port 3 is opened before the section is carried, deformation control difficulty is high, flatness control of the main deck is achieved, meanwhile, a midship position has no continuous longitudinal bulkhead support, welding deformation of an aluminum alloy structure is high, and welding deformation and welding quality control difficulty is high.
The structure of the deformation control assistance device will be described first.
The hull section folding seam deformation control auxiliary device (hereinafter referred to as deformation control auxiliary device 9) comprises a top seat 15, a base 14 and a lifting mechanism positioned between the top seat 15 and the base 14, wherein the top seat 15 is pressed against a main deck of the first hull section 6 and a main deck of the second hull section 7. The top mount 15 has a first hull acting portion 151 for pressing against the main deck of the first hull section 6 and a second hull acting portion 152 for pressing against the main deck of the second hull section 7. The first hull action part 151 and the second hull action part 152 are arranged at intervals from left to right, an avoidance groove 153 is formed between the first hull action part 151 and the second hull action part 152, and the avoidance groove 153 is used for avoiding a welding seam between the main deck of the first hull section 6 and the main deck of the second hull section 7.
The footstock 15 includes a footstock rib 154 and a footstock block 155, and the footstock rib 154 is inserted into the lifting mechanism, and the escape groove 153 is provided on the footstock block 155.
The lifting mechanism comprises a top seat connecting column 11 fixed with a top seat 15, a base connecting column 12 fixed with a base 14 and an adjusting screw rod 10, wherein the upper end of the adjusting screw rod 10 is in threaded connection with the top seat connecting column 11, the lower end of the adjusting screw rod 10 is in threaded connection with the base connecting column 12, and the thread turning direction of the upper end of the adjusting screw rod 10 is opposite to that of the lower end of the adjusting screw rod. By screwing the adjusting screw, the top seat can move upwards, and the height of the deformation control auxiliary device can be adjusted. The screw thread direction at the upper end of the adjusting screw rod 10 is opposite to the screw thread direction at the lower end, so that the height of the deformation control auxiliary device can be adjusted more quickly.
The base 14 is placed partly on the outboard bottom plate of the first hull section 6 and partly on the outboard bottom plate of the second hull section 7. In this embodiment, the base plate 141 is a flat plate. After the welding of the outer bottom plate of the first hull section 6 and the outer bottom plate of the second hull section 7 is completed, the base 14 is fixed with the outer bottom plate of the first hull section 6 and the outer bottom plate of the second hull section 7 in a spot welding manner, so that an avoiding groove for avoiding a welding line is not required to be formed in the base 14.
The base 14 comprises a base plate 141, the base plate 141 is welded and fixed with the base connecting column 12, and a reinforcing rib plate 142 is arranged between the base connecting column 12 and the base 14.
In order to facilitate the operation of the adjustment screw 10, the adjustment screw 10 has an operation section 101 in the middle, and the operation section 101 has an operation hole 102 into which an operation tool is inserted. The adjusting screw 10 is screwed as a handle after the operating tool is inserted into the operating hole 102.
The top seat connecting column 11 comprises a top seat connecting pipe 111 and an upper bushing 112 inserted into the top seat connecting pipe 111, the upper bushing 112 is welded and fixed with the top seat connecting pipe 111, and the upper bushing 112 is in threaded connection with the adjusting screw 10. The upper support and the top seat connecting pipe are arranged separately, so that threads can be conveniently machined on the upper bushing 112.
Similarly, the base connection column 12 includes a base connection pipe 121 and a lower bushing 122, the lower bushing 122 is welded and fixed to the base connection pipe 121, and the lower bushing 122 is in threaded connection with the adjusting screw 10. The threads on the adjusting screw 10 in this embodiment are rectangular threads.
In this embodiment, the top of the top seat connecting pipe 111 is provided with a slot extending vertically, the top seat rib plate 154 is inserted into the slot from top to bottom and is welded and fixed with the top seat connecting pipe 111, the top of the top seat rib plate 154 is flush with the top end face of the top seat connecting pipe 111, and the top seat block 155 is welded and fixed with the top seat rib plate 154 and also welded and fixed with the top seat connecting pipe 111, so that the connection strength is improved.
The following detailed description of a hull section closure seam deformation control method includes the following steps:
1) Before the first ship body section 6 to be folded is folded with the second ship body section 7, marking relevant mark lines on a ship berth.
Specifically, before the ship body is segmented and closed, a laser theodolite is used for matching with a specified position to mark out a relevant mark line of a slipway, a segmented butt-joint reference is set, as shown in fig. 2, an iron placing pier 4 and an edge wood 5 are arranged, the position and the number are arranged, the weight gravity center design of the buoyancy tank is combined, the placing safety is ensured, the placing deformation is controlled, and the placing pier and the edge wood are symmetrically arranged along the width direction corresponding to the gravity center to control the placing deformation of the buoyancy tank segments.
2) The first ship body section 6 and the second ship body section 7 are hoisted to a slipway, the first ship body section 6 and the second ship body section 7 which need to be folded are positioned, and the folding opening of the first ship body section 6 is opposite to the folding opening of the second ship body section 7 in the left-right direction.
Specifically, the first ship body segment 6 is hoisted to be on the slipway for positioning, the reference lines marked on the first ship body segment 6 correspond to the reference lines on the slipway one by one, the positioning precision is ensured, the second ship body segment 7 is hoisted to be on the slipway, the positioning, scribing and cutting allowance work are carried out, and the main dimension of the total segment after folding is ensured.
And after the first ship body section 6 and the second ship body section 7 are positioned, welding the outer bottom plate of the first ship body section 6 with the outer bottom plate of the second ship body section 7. And (3) performing back sealing welding on the lower side surface of the main deck of the first hull section 6 and the lower side surface of the main deck of the second hull section 7. The welding of the outer bottom plate of the ship body and the welding of the back cover of the main deck are independent and can be carried out simultaneously. After the outer bottom plate of the ship body is welded, the strength is improved, and the outer bottom plate is not easy to deform after being acted by the deformation control auxiliary device.
3) A plurality of deformation control auxiliary devices are arranged at the front and back intervals at the folding seam of the first ship body section 6 and the second ship body section 7, one part of the upper end of each deformation control auxiliary device is propped against the lower side surface of the main deck of the first ship body section 6, and one part of the upper end of each deformation control auxiliary device is propped against the lower side surface of the main deck of the second ship body section 7; and a part of the lower end of the deformation control auxiliary device is propped against the upper side surface of the outer bottom plate of the hull at the bottom of the first hull section 6, and a part of the lower end of the deformation control auxiliary device is propped against the upper side surface of the outer bottom plate of the hull at the bottom of the second hull section 7.
Specifically, the deformation control auxiliary devices 9 are arranged below the segmented folding seam 8, and the arrangement number is uniformly arranged along the folding seam direction according to the structural form. The base 1414 is pressed against the upper surface of the outer bottom plate of the ship body,
the deformation control assisting device upper end avoidance slot 153 faces a folding seam between the main deck of the first hull section 6 and the main deck of the second hull section 7 for facilitating welding.
4) The deformation control auxiliary device comprises a lifting mechanism for adjusting the height of the deformation control auxiliary device, each deformation control auxiliary device is operated, the height of each deformation control auxiliary device is adjusted, and the upper surface of the main deck of the first ship body section 6 and the surface of the main deck of the second ship body section 7 are flat and straight by upwards jacking the main deck of the first ship body section 6 and the main deck of the second ship body section 7.
Specifically, the height of the deformation control auxiliary device is adjusted by rotating the adjusting stud 10, two ends of the deformation control auxiliary device are respectively tightly propped against the main deck and the outer bottom plate of the ship body, and then the upper end of the deformation control auxiliary device is fixed with the main deck of the first ship body segment 6 in a spot welding mode and is fixed with the main deck of the second ship body segment 7 in a spot welding mode. And adjusting the height of the deformation control auxiliary device to enable the main deck to be straight.
It should be noted that the overall strength of the hull outer bottom plate is greater than that of the main deck, and the hull outer bottom plate is supported by the rest piers, so that the hull outer bottom plate is less prone to deformation. In addition, when the ship is built, the precision requirement on the outer bottom plate of the ship body is smaller than that on the main deck.
5) Welding the upper side surface of the main deck of the first ship body section 6 and the upper side surface of the main deck of the second ship body section 7, observing the welding quality and deformation condition of a folding seam in real time in the welding process, adjusting the height of the deformation control auxiliary device according to the actual deformation, keeping the surface of the main deck straight, and withdrawing the deformation control auxiliary device after welding.
Specifically, welding is carried out on the closure opening of the ship body section, and the control tool is withdrawn after welding. The height of the deformation control auxiliary device is reduced by rotating the adjusting screw rod 10, the welding seam quality and the sagging deformation amount are checked when the deformation control auxiliary device is withdrawn, and the tool is withdrawn after the ship body is safely folded and the deformation is controllable.
In conclusion, after the ship body sections are hoisted on the slipway, the deformation control auxiliary device disclosed by the application is arranged and jacked in place, the butt joint elements of the seaming seams are controlled, and the ship body sections are welded and seamed. The deformation control auxiliary device is used for supporting the main deck and the outer bottom plate when the ship body sections are folded, reducing the influence of stress on a folding area in the welding process, avoiding the phenomenon that a folding welding line is concave, improving the precision and the quality of the folding welding line, controlling the deformation of the folding joint of the buoyancy tank sections and ensuring the flatness of the main deck. The control method solves the technical difficulties of laying deformation and aluminum alloy welding deformation control during the carrying of the hull buoyancy tank sections, reduces the influence of stress in the welding process on the closure area, avoids the phenomenon of sunken closure welding lines, improves the closure seam precision and the welding line quality, reduces the workload of flame correction after welding, and realizes the quick closure of the buoyancy tank sections.
In the embodiment, the base 14 and the top seat 15 of the deformation control auxiliary device are made of the same aluminum alloy material as the ship body, so that the main ship body is prevented from being contacted and corroded by dissimilar metals; (2) The deformation control auxiliary device is light in weight, can be carried and arranged by a single person in a limited construction space, and is convenient to disassemble; (3) The height is adjusted through the adjusting screw rod 10, the operation is flexible, and the welding machine can be adjusted in time according to the deformation condition in the welding process. Therefore, the ship body is segmented and folded by adopting the deformation control auxiliary device, the construction manufacturability and the construction safety are improved, the carrying precision and the welding quality of butt joints are controlled, and the problem of water accumulation in the use process of the ship body is solved.
In one embodiment, the welding of the outer bottom plate of the first segment and the outer bottom plate of the second segment is performed after the welding of the main deck.
In one embodiment, the upper side of the main deck is welded and then the lower side of the main deck of the first hull section is back-sealed to the lower side of the main deck of the second hull section.
In one embodiment, the deformation control aid is in the form of a jack of suitable state of the art centre specifications, in addition to the above described embodiments.
In one embodiment, two ends of the deformation control auxiliary device are not fixed, the upper end of the deformation control auxiliary device is in press fit with the main deck, and the lower end of the deformation control auxiliary device is in press fit with the outer bottom plate of the ship body, so that the deformation control auxiliary device is convenient to disassemble. In one embodiment, bolt fastening is used instead of spot welding.
In one embodiment, the lifting mechanism is a hydraulic lifting mechanism. In one embodiment, the lifting mechanism is provided with a motor, the motor is connected with a lead screw nut mechanism, and the main deck is pressed through the lead screw nut mechanism.
In the specific embodiment of the auxiliary device for controlling deformation of the ship body segment folding seam in the present application, the structure of the auxiliary device for controlling deformation of the ship body segment folding seam in the present embodiment is the same as that of the auxiliary device for controlling deformation in any one of the embodiments, and details are not repeated.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A deformation control method for a ship body segment folding seam is characterized by comprising the following steps:
1) Before a first ship body section (6) needing to be folded and a second ship body section (7) are folded, marking a related mark line on a ship platform;
2) Hoisting the first ship body section (6) and the second ship body section (7) to a slipway, positioning the first ship body section (6) and the second ship body section (7) which need to be folded, and enabling the folding port of the first ship body section (6) and the folding port of the second ship body section (7) to be opposite to each other left and right;
3) A plurality of deformation control auxiliary devices (9) are arranged at the folding seam of the first ship body section (6) and the second ship body section (7) at intervals from front to back, one part of the upper end of each deformation control auxiliary device (9) is propped against the lower side surface of the main deck of the first ship body section (6), and one part of the upper end of each deformation control auxiliary device is propped against the lower side surface of the main deck of the second ship body section (7); one part of the lower end of the deformation control auxiliary device (9) is propped against the upper side surface of the outer bottom plate of the ship body at the bottom of the first ship body section (6), and the other part of the lower end of the deformation control auxiliary device is propped against the upper side surface of the outer bottom plate of the ship body at the bottom of the second ship body section (7);
4) The deformation control auxiliary device (9) comprises a lifting mechanism for adjusting the height of the deformation control auxiliary device (9), each deformation control auxiliary device (9) is operated, the height of each deformation control auxiliary device (9) is adjusted, and the upper surface of the main deck of the first ship body section (6) is flat and straight with the surface of the main deck of the second ship body section (7) by upwards pressing the main deck of the first ship body section (6) and the main deck of the second ship body section (7);
5) Welding the upper side surface of the main deck of the first ship body section (6) and the upper side surface of the main deck of the second ship body section (7), observing the welding quality and the deformation condition of a folding seam in real time in the welding process, adjusting the height of the deformation control auxiliary device (9) according to the actual deformation, keeping the surface of the main deck straight, and withdrawing the deformation control auxiliary device (9) after welding.
2. The hull section folding seam deformation control method according to claim 1, characterized in that the step 2) comprises: and after the first ship body segment (6) and the second ship body segment (7) are positioned, welding the ship body outer bottom plate of the first ship body segment (6) with the ship body outer bottom plate of the second ship body segment (7).
3. The hull section folding seam deformation control method according to claim 2, characterized in that the step 2) further comprises the step of back-sealing the lower side of the main deck of the first hull section (6) and the lower side of the main deck of the second hull section (7) after the first hull section (6) and the second hull section (7) are positioned.
4. The hull section closure joint deformation control method according to claim 1, 2 or 3, characterized in that the upper end of the deformation control auxiliary device (9) is spot welded to the main deck of the first hull section (6) and spot welded to the main deck of the second hull section (7); the lower end of the deformation control auxiliary device (9) is fixed with the hull outer bottom plate of the first hull section (6) in a spot welding mode, and is fixed with the hull outer bottom plate of the second hull section (7) in a spot welding mode.
5. The auxiliary device for controlling the deformation of the folding seam of the ship body sections is characterized by comprising a top seat (15), a base (14) and a lifting mechanism positioned between the top seat (15) and the base (14), wherein the top seat (15) is used for jacking a main deck of a first ship body section (6) and a main deck of a second ship body section (7) which need to be folded, and the base (14) is used for jacking an outer bottom plate of the first ship body section (6) and an outer bottom plate of the second ship body section (7); the footstock (15) is provided with a first ship body acting part (151) used for jacking and pressing a main deck of the first ship body segment (6) and a second ship body acting part (152) used for jacking and pressing a main deck of the second ship body segment (7), the first ship body acting part (151) and the second ship body acting part (152) are arranged at left and right intervals, an avoiding groove (153) is formed between the first ship body acting part and the second ship body acting part, and the avoiding groove (153) is used for avoiding a welding seam of the main deck of the first ship body segment (6) and the main deck of the second ship body segment (7).
6. The hull section closure seam deformation control auxiliary device according to claim 5, characterized in that the lifting mechanism comprises a top seat connecting column (11) fixed with a top seat (15), a base connecting column (12) fixed with a base (14), and an adjusting screw (10), wherein the upper end of the adjusting screw (10) is in threaded connection with the top seat connecting column (11), the lower end of the adjusting screw is in threaded connection with the base connecting column (12), and the thread direction of the upper end of the adjusting screw (10) is opposite to that of the lower end.
7. The hull section closure seam deformation control auxiliary device according to claim 6, characterized in that the adjusting screw (10) has an operating section (101) in the middle, and the operating section (101) has an operating hole (102) for inserting an operating tool.
8. The hull section closure seam deformation control auxiliary device according to claim 6, characterized in that the top seat connecting column (11) comprises a top seat connecting pipe (111) and an upper bushing (112) inserted into the top seat connecting pipe (111), the upper bushing (112) is fixed with the top seat connecting pipe (111), and the upper bushing (112) is in threaded connection with the adjusting screw (10).
9. The hull segment closure seam deformation control auxiliary device according to claim 6, characterized in that the top seat (15) comprises a top seat rib plate (154) and a top seat block (155), the top seat rib plate (154) is inserted into the top seat connecting column (11) of the lifting mechanism, the top seat block (155) is simultaneously fixed with the top seat rib plate (154) and the top seat connecting column (11), and the avoidance groove (153) is arranged on the top seat block (155).
10. The hull section closure joint deformation control auxiliary device according to any one of claims 6-9, characterized in that the base (14) comprises a base plate (141), the base plate (141) is welded and fixed with the base connecting column (12), and a reinforcing rib plate (142) is arranged between the base connecting column (12) and the base (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211079402.6A CN115610609A (en) | 2022-09-05 | 2022-09-05 | Deformation control method and auxiliary deformation control device for ship body segment folding seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211079402.6A CN115610609A (en) | 2022-09-05 | 2022-09-05 | Deformation control method and auxiliary deformation control device for ship body segment folding seam |
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| Publication Number | Publication Date |
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| CN115610609A true CN115610609A (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211079402.6A Pending CN115610609A (en) | 2022-09-05 | 2022-09-05 | Deformation control method and auxiliary deformation control device for ship body segment folding seam |
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| Country | Link |
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| CN (1) | CN115610609A (en) |
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