CN114906293A - Method for constructing rocker arm hinge piece of jacket launching barge - Google Patents
Method for constructing rocker arm hinge piece of jacket launching barge Download PDFInfo
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- CN114906293A CN114906293A CN202210607497.8A CN202210607497A CN114906293A CN 114906293 A CN114906293 A CN 114906293A CN 202210607497 A CN202210607497 A CN 202210607497A CN 114906293 A CN114906293 A CN 114906293A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 47
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000007689 inspection Methods 0.000 claims description 14
- 238000005728 strengthening Methods 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
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- 239000003973 paint Substances 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
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- 238000001514 detection method Methods 0.000 description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007667 floating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention relates to a method for constructing a rocker arm hinge piece of a jacket launching barge. The invention relates to a method for constructing a rocker arm hinge piece of a jacket launching barge, which comprises the following steps: prefabricating the semicircular sleeve section, integrally prefabricating the semicircular sleeve and the support into the semicircular sleeve section → boring the semicircular sleeve section → installing the semicircular sleeve section after boring on a stern of the ship → prefabricating a locker → performing finish machining on a filling plate inside the semicircular sleeve of the locker → assembling the locker with the stern of the ship and the semicircular sleeve section. The method for constructing the rocker arm hinge part of the jacket launching barge has the advantages of convenience in manufacturing, low cost, small deviation, cost saving and capability of improving the construction efficiency.
Description
Technical Field
The invention relates to the technical field of ocean engineering machinery, in particular to a method for constructing a rocker arm hinge part of a jacket launching barge.
Background
"ocean oil 229" is an important component of the deep water development strategy implemented by the Chinese ocean oil, is the maritime work barge of the first and third world in Asia, and has the carrying capacity of 6 ten thousand tons, the launching capacity of 3.85 ten thousand tons of jacket and the floating and supporting installation capacity of 3.5 ten thousand tons of chunk. The jacket launching process refers to a process that a jacket slides to launch from a launching barge with certain trim by self weight until the jacket is separated from the barge and reaches a stable state in water. Wherein the rocker arm is a key device for distinguishing the jacket launching barge from a common barge. The rocking arm is installed at the stern, and every ship is equipped with two rocking arms, and the rocking arm overall dimension is: length × width × height is 41 × 4 × 8m, and the individual weight reaches 720T. The rocker arm has the effect that when the jacket slides into water, the weight of the jacket is completely pressed on the rocker arm, and the jacket is launched by overturning the rocker arm, so that the construction risk of the launching mode is low, the limitation of large floating crane resources is removed, the launching cost can be saved by millions of yuan each time, and the high popularization value is realized.
Referring to fig. 1 and 2, when a jacket of an ocean platform is launched, a barge rocker arm I is used for sliding the jacket into water, the jacket to be launched is loaded on the rocker arm I, a rocker arm rotating shaft II is required to rotate around a rocker arm hinged part when the rocker arm I works, the rocker arm I rotates from a horizontal state to a stern to a vertical state, and the rocker arm hinged part supports the rocker arm I.
The rocker arm hinged member comprises a support 1, a locker 2 and a semicircular sleeve 3, the locker 2 comprises a locker body 20, a locker semicircular sleeve 21 and a filling plate 210, the locker semicircular sleeve 21 is a semicircular cylinder, the locker semicircular sleeve 21 is fixed on the locker body, and the filling plate 210 is fixed in the locker semicircular sleeve 21. Semicircle cover 3 is fixed on support 1, and semicircle cover 3 is the semicylindrical barrel, and support 1 includes first straight board 11, first strengthening rib 12, second straight board 13, third straight board 14 and second strengthening rib 15, and first straight board 11, second straight board 13, third straight board 14 are fixed in semicircle cover 3, first strengthening rib 12 connect in first straight board 11 with between the second straight board 13, second strengthening rib 15 connect in between second straight board 13 and the third straight board 14, support 1 installs on the stern, and 2 covers of locker are established on support 1, and locker semicircle cover 21, packing plate 210 and semicircle cover 3 form a locking space, and lockable rocking arm pivot II does not rotate. However, the rocker arm hinge piece is large in size and weight, special in material and thick in plate thickness, so that the construction technology of the existing rocker arm hinge piece is large in welding difficulty, poor in precision, large in processing difficulty and high in cost, and the rocker arm hinge piece can be guaranteed to be successfully constructed by adopting a proper construction method.
Disclosure of Invention
Based on the above, the invention aims to provide a method for constructing a rocker arm hinge part of a jacket launching barge, which has the advantages of simple manufacture, high precision and low cost.
A method of constructing a jacket launch barge rocker arm hinge, the rocker arm hinge comprising a mount, a locker, and a semicircular sleeve, the method comprising: the method comprises the following steps:
prefabricating a semicircular sleeve section, namely integrally prefabricating the semicircular sleeve and the support into the semicircular sleeve section;
boring the semicircular sleeve in sections;
installing the bored semicircular sleeves on the stern in sections;
prefabricating a locker;
performing finish machining on the filling plate in the semi-circular sleeve of the locking device;
assembling the locker with the stern part and the semicircular sleeve in sections.
Compared with the prior art, the method for constructing the rocker arm hinge part of the jacket launching barge, disclosed by the invention, has the characteristics of convenience in manufacturing, low cost and small deviation, saves the cost and improves the construction efficiency by segmenting the semicircular sleeve, the support and the components thereof into prefabricated semicircular sleeves and then installing the semicircular sleeves and the locker on the stern.
And further, prefabricating the semicircular sleeves in sections, prefabricating the semicircular cylinders with the same pipe diameter as a first semicircular sleeve and a second semicircular sleeve respectively, and fixing one end of the first semicircular sleeve and one end of the second semicircular sleeve in a welding mode. The semicircular sleeve is divided into two sections and then welded into an integral semicircular sleeve, so that the volume and the weight of a single semicircular sleeve can be reduced, and the manufacturing and the transportation are convenient.
Further, the first semicircular sleeve and the second semicircular sleeve are welded on the splicing jig frame, and the welding mode is carbon dioxide arc welding. Carbon dioxide arc welding is carried out on the splicing jig frame, so that the semicircular sleeve is more stable in welding, small in deformation, high in production efficiency, electric energy-saving and welding cost-saving.
Furthermore, the splicing jig frame comprises a splicing table body, a plurality of external special templates and a plurality of internal special templates, wherein the external special templates are parallel to each other and are uniformly distributed on the splicing table body, each external special template is provided with a bearing groove, the bearing grooves are matched with the outer contour of the semicircular sleeve, and each internal special template is semicircular and matched with the inner contour of the semicircular sleeve; respectively placing the first semicircular sleeve and the second semicircular sleeve at two ends of the splicing jig frame, respectively enabling the outer contours of the first semicircular sleeve and the second semicircular sleeve to be attached to a supporting groove of the outer contour of the external special template, enabling one end of the first semicircular sleeve to be in contact with one end of the second semicircular sleeve, and then attaching the outer contour of the internal special template to the inner contours of the first semicircular sleeve and the second semicircular sleeve; and then welding is carried out at the contact position of the first semicircular sleeve and the second semicircular sleeve. By using the external special template and the internal special template, the welding deformation between the first semicircular sleeve and the second semicircular sleeve can be effectively prevented.
Further, the semicircular sleeve and the components of the support are sequentially placed on a special subsection jig frame to be welded and fixed, and the semicircular sleeve subsection is formed. After the semi-circular sleeve is supported by the segmented jig frame, the semi-circular sleeve is welded with a component of the support, so that the welding precision can be improved.
Furthermore, the segmentation bed-jig includes a plurality of special masterplate of segmentation and a plurality of stand, a plurality of stand evenly distributed fix on ground, a plurality of special masterplate of segmentation parallel fixation are in on a plurality of stands, the upper surface of special masterplate of segmentation includes first inclined plane, middle protruding circular arc face and the second inclined plane that connects gradually, middle circular arc face with the internal surface of semicircle cover is identical, first inclined plane and second inclined plane are by the slope of outside to middle protruding circular arc face direction, the support includes first straight plate, first strengthening rib, second straight plate, third straight plate and second strengthening rib. The use of a number of segment-specific stencils makes the segmented jig frame more stable supporting the support and its components.
Further, firstly, the semicircular sleeve is hoisted to the segmented jig frame, the inner surface of the semicircular sleeve is attached to the middle convex circular arc surface of the segmented special template, then the first straight plate is placed on the second inclined surface, and one end of the first straight plate is welded and fixed with the edge of the outer surface of the semicircular sleeve; then welding and fixing one end of the first reinforcing rib and the outer surface of the semicircular sleeve, and welding and fixing one side of the first reinforcing rib and one side of the first straight plate; welding and fixing one end of the second straight plate with the outer surface of the semicircular sleeve, and welding and fixing one side of the second straight plate with one side of the first reinforcing rib; then, the third straight plate is placed on the first inclined surface, and one end of the third straight plate is welded and fixed with the other edge of the outer surface of the semicircular sleeve; and finally, welding and fixing one side of the second reinforcing rib and one side of the third straight plate, and welding and fixing the other side of the second reinforcing rib and one side of the second straight plate. The first straight plate, the first reinforcing rib, the second straight plate, the third straight plate and the second reinforcing rib are welded and fixed with the semicircular sleeve in sequence, the process can be simpler through segmented welding, poor welding is reduced, the cost is saved, and the manufacturing efficiency is improved.
Further, the method for installing the semicircular sleeve on the stern in a segmented mode comprises the following steps: drawing a projection line of the central line of the rotating shaft and a section closure inspection line on the semicircular sleeve section; drawing a rocker arm central line, a stern rotating shaft central line and a stern folding port inspection line on a stern; during assembly, the perpendicular line of the projection line of the central line of the rotating shaft and the projection line of the central line of the rotating shaft of the stern on the side longitudinal wall of the stern are overlapped, and the inspection line of the segmented closure opening is parallel to the inspection line of the closure opening of the stern. And the assembling precision of the semicircular sleeve section, the locker and the stern part of the ship is improved.
Further, paint coats the half-round sleeve segments. The rocker arm hinge is prevented from being corroded, and the service life of the rocker arm hinge is prolonged.
Furthermore, the locker, the stern part and the semicircular sleeve are segmented and fixed in a welding mode, errors are measured every two hours in the welding process, and each deviation value is not more than 2 mm. The detection is carried out according to certain time isolation, the repair can be carried out in advance, the final scrapping of the whole rocker arm hinged piece is avoided, the construction efficiency of the rocker arm hinged piece is improved, and the cost is saved.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a jacket launch barge rocker hinge assembly mounted to the stern of a ship;
FIG. 2 is a side cross-sectional view of the rocker arm hinge of FIG. 1;
fig. 3 is a top view of the half-round sleeve 3 on the splicing jig frame 4 according to the embodiment of the present application;
FIG. 4 is a view in the direction A-A of FIG. 3;
FIG. 5 is a view in the direction B-B of FIG. 3;
FIG. 6 is a schematic structural view of the segmented jig frame 5;
FIG. 7 is a schematic view of the assembly of the semi-circular sleeve 3 and the support 1 on the segmented jig frame 5 according to the embodiment of the present application;
FIG. 8 is a sectional drawing line of the semicircular sleeve according to the embodiment of the present application;
FIG. 9 is a schematic drawing of a stern section area of a ship according to an embodiment of the present invention;
Detailed Description
In the description of the present invention, it is to be understood 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 device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Examples
A method for constructing a rocker arm hinge of a jacket launch barge, referring to fig. 1 and 2, the rocker arm hinge comprising a seat 1, a locker 2 and a semicircular sleeve 3, comprising the steps of:
s1: the semi-circular sleeve is prefabricated into a segment, and the semi-circular sleeve 3 and the support 1 are integrally prefabricated into a semi-circular sleeve segment;
s2: boring the inner surface of the semicircular sleeve 3 which is segmented by the semicircular sleeve;
s3: assembling the semicircular sleeve section with a stern;
s4: the locker 2 is integrally prefabricated;
s5: finishing the filling plate 210 inside the fastener semi-circular sleeve 21;
s6: the locker 2 is installed with the stern part and the semicircular sleeve in sections.
The step S1 includes the steps of,
s11: firstly, a semi-circular sleeve finished product is customized, and in the embodiment, referring to fig. 3, 4 and 5, the splicing jig frame 4 comprises a plurality of external special templates 41, internal special templates 42 and a splicing table body 40; the splicing table body 40 is in a cuboid frame shape, a plurality of external special templates 41 and the splicing table body 40 are fixed and evenly distributed on the splicing table body 40 and are used for supporting the semicircular sleeve,
each external special template 41 is provided with a bearing groove 410, the bearing groove 410 is matched with the outer contour of the semicircular sleeve 3, each internal special template 42 is semicircular and is matched with the inner contour of the semicircular sleeve 3, and looseness can be prevented when the semicircular sleeve 3 is supported.
The semicircular sleeve 3 is made of alloy forged steel 25CrMo4, the semicircular sleeve 3 is divided into two sections according to length to be prefabricated, a first semicircular sleeve 31 and a second semicircular sleeve 32 are respectively prefabricated, the length of each semicircular sleeve 3 is 6800mm, the first semicircular sleeve 31 and the second semicircular sleeve 32 are respectively placed on a splicing jig frame 4, an external special template 41 of the splicing jig frame 4 is provided, the thickness T is 20mm, the first semicircular sleeve 31 and the second semicircular sleeve 32 are supported, the first semicircular sleeve 31 and the second semicircular sleeve 32 are welded to form an integral semicircular sleeve 3 with the length of 13600mm, and CO is adopted for welding 2 Gas shielded welding, the first semicircular sleeve 31 and the second semicircular sleeve 32 are respectively placed at two ends of the splicing jig frame 4, so that the outer contours of the first semicircular sleeve 31 and the second semicircular sleeve 32 are respectively attached to the bearing grooves of the outer contour of the external special template 41410, one end of the first semicircular sleeve 31 is contacted with one end of the second semicircular sleeve 32, and then the outer contour of the internal special template 42 is attached to the inner contours of the first semicircular sleeve 31 and the second semicircular sleeve 32; welding is then performed where the first semicircular sleeve 31 is in contact with the second semicircular sleeve 32. Firstly welding the inner part (namely an inner groove) of an arc-shaped closure opening between two semicircular sleeves 3 at a welding part S, then welding the outer part (namely an outer groove), and arranging an inner special template 42 in each semicircular sleeve 3 at intervals of one outer special template 41 to prevent the semicircular sleeves 3 from being deformed during welding;
s12: and carrying out precision detection and weld seam flaw detection on the welded integral semicircular sleeve, and after the tyre is removed from the splicing jig frame 4, hoisting the integral semicircular sleeve 3 onto the segmented jig frame 5 to be assembled with the support 1 and the components thereof. Referring to fig. 6, the segmented jig frame 5 includes a plurality of segmented special stencils 51 and a plurality of columns 52, the plurality of columns 52 are uniformly distributed and fixed on the ground, the plurality of segmented special stencils 51 are fixed on the plurality of columns 52, the plurality of columns 52 are used for supporting the plurality of segmented special stencils 51, and the number of the segmented special stencils 51 is set according to the axial length of the loaded semicircular sleeve 3; the outer contour of the special segmented template 51 is matched with the shape of the semi-circular sleeve 3 and the support after welding and splicing, the upper surface of the outer contour of the special segmented template 51 comprises a first inclined surface 510, a middle convex circular arc surface 511 and a second inclined surface 512 which are sequentially connected, the middle circular arc surface 511 is matched with the inner surface of the semi-circular sleeve 3, and the first inclined surface 510 and the second inclined surface 512 are inclined from the outer side to two sides of the middle convex circular arc surface 510 and are used for supporting a straight plate of the support 1.
Referring to fig. 7, the support 1 includes a first straight plate 11, a first reinforcing rib 12, a second straight plate 13, a third straight plate 14, and a second reinforcing rib 15; the lengths of the first straight plate 11, the second straight plate 13 and the third straight plate 14 are the same as those of the semicircular sleeve 3, and the side ends of the first straight plate, the second straight plate and the third straight plate are welded and fixed with the outer edge of the semicircular sleeve; the first reinforcing ribs 12 and the second reinforcing ribs 15 are provided with a plurality of numbers, are respectively arranged and fixed between the first straight plate 11 and the second straight plate 13, between the second straight plate 13 and the third straight plate 14, and are evenly fixed on the semicircular sleeve 3 along the axial direction of the semicircular sleeve 3 according to the length of the semicircular sleeve 3.
Referring to fig. 6 and 7, first, a first straight plate 11 is placed on the second inclined surface 512 on the segmented jig frame 5, and one end of the first straight plate 11 is welded and fixed with the outer edge of the semicircular sleeve 3; then one end of a first reinforcing rib 12 is fixedly welded with the outer edge of the semicircular sleeve 3, and one side of the first reinforcing rib 12 is fixedly welded with one side of the first straight plate 11; then one end of the second straight plate 13 is welded and fixed with the outer edge of the semicircular sleeve 3, and one side of the second straight plate 13 is welded and fixed with one side of the first reinforcing rib 12; then, the third straight plate is placed on the first inclined surface 510, and one end of the third straight plate 14 is welded and fixed with the outer edge of the semicircular sleeve 3; finally, one side of a second reinforcing rib 15 is fixedly welded with one side of a third straight plate 14, and the other side of the second reinforcing rib is fixedly welded with one side of a second straight plate 13; finally, a semicircular sleeve segment is formed;
s13: performing precision measurement, deformation correction, weld appearance inspection and flaw detection on the formed semicircular sleeve sections;
s14: referring to fig. 8, a perpendicular line 141a of the projection of the central line 141 of the rotating shaft ii and a sectional closure inspection line 142 are drawn on the semicircular sleeve section as the basis for the installation and positioning of the semicircular sleeve section, and the sectional closure inspection line 142 is perpendicular to the central line 141 of the rotating shaft ii; referring to fig. 1 and 9, the stern is also marked with a line matching with the semicircular sleeve segment, a central line 140 of the rocker arm I, a central line 1410 of the stern rotating shaft II and a stern folding port inspection line 1420 are drawn, when the semicircular sleeve segment is installed with the stern, the line and the line are matched for positioning, the central line of the rocker arm is used as a reference line of a structural installation line in the width direction of the semicircular sleeve, the line is marked towards two sides respectively by taking the line as a reference, and the marking accuracy error is reduced. The projection perpendicular line 141a of the central line 141 of the rotating shaft II and the projection line of the central line 1410 of the rotating shaft II on the stern side longitudinal wall are matched and overlapped, and the segmented closure inspection line 142 is parallel to the stern closure inspection line 1420.
S15: and painting the semi-circular sleeve in sections.
In step S2, in this embodiment, the semi-circular sleeve is transported to the workshop in sections by using a flat car, and the semi-circular sleeve is bored in sections by using a special machining device.
The step S3 includes the steps of,
s31: dismantling the old support at the stern part of the ship and replacing the old support with a new longitudinal bulkhead plate;
s32: dismantling the old semicircular sleeve and hoisting and lowering the old semicircular sleeve;
s33: and step S2, hoisting the semi-circular sleeves in sections to the designated positions of the stern for installation and welding, in the embodiment, in the welding process, measuring the semi-circular sleeves once every 2 hours, wherein each deviation value is required to be not more than 2mm, if the deviation value is more than 2mm, the welding is stopped immediately on site, and the welding sequence is adjusted until the welding standard is met.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that numerous changes and modifications can be made by those skilled in the art without departing from the inventive concepts and it is intended that such changes and modifications be covered by the present invention.
Claims (10)
1. A method of constructing a jacket launch barge rocker arm hinge, the rocker arm hinge comprising a mount, a locker, and a semicircular sleeve, the method comprising: the method comprises the following steps:
prefabricating a semicircular sleeve section, namely integrally prefabricating the semicircular sleeve and the support into the semicircular sleeve section;
boring the semicircular sleeve in sections;
installing the bored semicircular sleeve on a stern in a subsection manner;
prefabricating a locker;
performing finish machining on the filling plate in the semi-circular sleeve of the locking device;
assembling the locker with the stern part and the semicircular sleeve in sections.
2. The method of constructing a jacket launch barge rocker arm hinge as recited in claim 1, wherein: and prefabricating the semicircular sleeves in sections, respectively prefabricating the semicircular cylinders with the same pipe diameter as a first semicircular sleeve and a second semicircular sleeve, and fixing one end of the first semicircular sleeve and one end of the second semicircular sleeve in a welding mode.
3. The method of constructing a jacket launch barge rocker arm hinge as recited in claim 2, wherein: the first semicircular sleeve and the second semicircular sleeve are welded on the splicing jig frame, and the welding mode is carbon dioxide arc welding.
4. The method of constructing a jacket launch barge rocker arm hinge assembly of claim 3, wherein: the splicing jig frame comprises a splicing table body, a plurality of external special templates and a plurality of internal special templates, wherein the external special templates are mutually parallel and uniformly distributed on the splicing table body, each external special template is provided with a bearing groove, the bearing grooves are matched with the outer contour of the semicircular sleeve, and each internal special template is semicircular and matched with the inner contour of the semicircular sleeve; respectively placing the first semicircular sleeve and the second semicircular sleeve at two ends of the splicing jig frame, respectively enabling the outer contours of the first semicircular sleeve and the second semicircular sleeve to be attached to the supporting groove of the external special template, enabling one end of the first semicircular sleeve to be in contact with one end of the second semicircular sleeve, and then attaching the internal special template to the inner contours of the first semicircular sleeve and the second semicircular sleeve; and then welding is carried out at the contact position of the first semicircular sleeve and the second semicircular sleeve.
5. The method of constructing a jacket launch barge rocker arm hinge according to claim 1, wherein: and sequentially placing the semicircular sleeve and the components of the support on a special subsection jig frame for welding and fixing to form a semicircular sleeve subsection.
6. The method of constructing a jacket launch barge rocker arm hinge as recited in claim 5, wherein: the special template of a plurality of subsections and a plurality of stand are included to the segmentation bed-jig, a plurality of stand evenly distributed are fixed on the ground, the special template parallel fixation of a plurality of subsections on a plurality of stands, the upper surface of the special template of subsection includes first inclined plane, middle convex arc face and the second inclined plane that connects gradually, middle arc face with the internal surface of semicircle cover is identical, first inclined plane and second inclined plane are by the slope of outside to middle convex arc face direction, the support includes first straight board, first strengthening rib, second straight board, third straight board and second strengthening rib.
7. The method of constructing a jacket launch barge rocker arm hinge assembly of claim 6, wherein: firstly, hoisting the semicircular sleeve to the segmented jig frame, enabling the inner surface of the semicircular sleeve to be attached to the middle convex arc surface of the segmented special template, then placing the first straight plate on the second inclined surface, and welding and fixing one end of the first straight plate with the edge of the outer surface of the semicircular sleeve; then welding and fixing one end of the first reinforcing rib and the outer surface of the semicircular sleeve, and welding and fixing one side of the first reinforcing rib and one side of the first straight plate; welding and fixing one end of the second straight plate with the outer surface of the semicircular sleeve, and welding and fixing one side of the second straight plate with one side of the first reinforcing rib; then, the third straight plate is placed on the first inclined surface, and one end of the third straight plate is welded and fixed with the other edge of the outer surface of the semicircular sleeve; and finally, welding and fixing one side of the second reinforcing rib and one side of the third straight plate, and welding and fixing the other side of the second reinforcing rib and one side of the second straight plate.
8. The method of constructing a jacket launch barge rocker arm hinge as recited in claim 1, wherein: the method for installing the semicircular sleeve on the stern in a segmented manner comprises the following steps: drawing a projection line of the central line of the rotating shaft and a section closure inspection line on the semicircular sleeve section; drawing a rocker arm central line, a stern rotating shaft central line and a stern folding port inspection line on a stern; during assembly, the perpendicular line of the projection line of the central line of the rotating shaft and the projection line of the central line of the rotating shaft of the stern on the side longitudinal wall of the stern are overlapped, and the inspection line of the segmented closure opening is parallel to the inspection line of the closure opening of the stern.
9. The method of constructing a jacket launch barge rocker arm hinge assembly of claim 6, wherein: painting the semi-circular sleeve sections with paint.
10. The method of constructing a jacket launch barge rocker arm hinge as recited in claim 1, wherein: the locker is fixed with the stern part and the semicircular sleeve section by a welding mode, the error is measured every two hours in the welding process, and each deviation value is not more than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210607497.8A CN114906293B (en) | 2022-05-31 | 2022-05-31 | Method for constructing rocker arm hinge piece of jacket launching barge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210607497.8A CN114906293B (en) | 2022-05-31 | 2022-05-31 | Method for constructing rocker arm hinge piece of jacket launching barge |
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| CN114906293B (en) | 2024-05-17 |
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