CN112572722A - Manufacturing process of stern door springboard and stern door springboard manufactured by using same - Google Patents
Manufacturing process of stern door springboard and stern door springboard manufactured by using same Download PDFInfo
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- CN112572722A CN112572722A CN202011383360.6A CN202011383360A CN112572722A CN 112572722 A CN112572722 A CN 112572722A CN 202011383360 A CN202011383360 A CN 202011383360A CN 112572722 A CN112572722 A CN 112572722A
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- stern
- springboard
- eye plate
- plate
- eye
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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
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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
-
- 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
- B63B73/50—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by forming methods, e.g. manufacturing of curved blocks
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a stern door springboard manufacturing process and a stern door springboard manufactured by the process, wherein the process comprises the following steps: s1, manufacturing a jig frame, marking out a jig frame central line, and splicing and positioning a stern door panel and a stern ramp panel on the jig frame respectively to form a stern door panel and a stern ramp; s2, respectively carrying out structure scribing on the stern door plate and the stern springboard, and assembling and welding a structural member after scribing is finished; s3, positioning and mounting eye plates, wherein each eye plate comprises two parallel eye plate steel plates, and holes are formed in the eye plate steel plates; s4, after the eye plate is welded, respectively correcting the flatness of the stern door plate and the stern springboard; and S5, boring the eye plate. The process of the invention completes the installation and processing of the eye plate in the processing stage, is convenient for the installation of the stern door springboard in the later period, improves the construction efficiency, has advanced installation and processing of the eye plate and higher requirement on the installation precision, and can accurately install the stern door springboard processed by the scheme of the application in the later period, thereby ensuring the installation quality.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a stern door springboard manufacturing process and a stern door springboard manufactured by the process.
Background
With the rapid development of shipping industry, the size of large transport ships is getting bigger and bigger, including large roll-on-roll-off ships and military ships, the cost is higher, the tail part of a general cargo hold is provided with a stern door/springboard for the in and out of the transported vehicles, and the design function is diversified. In the manufacturing of the stern door/gangplank of the large ship, the structural flatness and the whole precision control difficulty are high, and the opening and closing of the stern door/gangplank relate to mechanical connection, including eye plate installation or shaft hole boring processing, and provide higher requirements for the high-precision control of the manufacturing of the stern door/gangplank structure.
At present, after a stern door/gangway of a large ship is installed on the ship, a hinge eye plate on a hatch cover is bored, and the method has the advantages of low construction efficiency, high operation and construction difficulty on the ship and large consumption of a large number of working hours.
Disclosure of Invention
In order to solve the technical problems, the invention provides a stern door springboard manufacturing process and a stern door springboard manufactured by the process, wherein an eye plate installation and shaft hole boring procedures are moved forward, so that the problem of low construction efficiency is solved, and the technical purpose of the invention is realized by the following technical scheme:
a stern door springboard manufacturing process comprises the following steps:
s1, manufacturing a jig frame, marking out a jig frame central line, and splicing and positioning a stern door panel and a stern ramp panel on the jig frame respectively to form a stern door panel and a stern ramp;
s2, respectively carrying out structure scribing on the stern door plate and the stern springboard, and assembling and welding a structural member after scribing is finished;
s3, positioning and mounting eye plates, wherein each eye plate comprises two parallel eye plate steel plates, and holes are formed in the eye plate steel plates;
s4, after the eye plate is welded, respectively correcting the flatness of the stern door plate and the stern springboard;
and S5, boring the eye plate.
Further, during plate paving, the plates are gradually spliced and positioned from the center line of the jig frame to two sides, and the stern door panel and the stern springboard panel are respectively fixed with the jig frame in a positioning welding mode.
Further, when the structure is scribed, 1mm of welding shrinkage compensation amount is added every 1m of length; and then hoisting the structural member, wherein the structural member comprises a U-shaped groove and a T-shaped section, hoisting the U-shaped groove on the stern door panel and the stern springboard panel, installing the T-shaped section, vertically arranging the T-shaped section relative to the U-shaped groove, and welding and fixing the U-shaped groove and the T-shaped section.
Further, the eye plate positioning comprises the following steps:
s6, determining two reference points on one side of the mounting eye plates of the stern door plate and the stern ramp;
s7, pulling a steel wire rope by two reference points to enable the steel wire rope to penetrate through the opening on the steel plate of the eye plate on the same side, enabling the steel wire rope to be in a tensioning state, adjusting the position of the eye plate to enable the steel wire rope to penetrate through the center of the opening, and welding the eye plate on the stern door plate and the stern ramp in a positioning mode;
s8, taking down the steel wire rope, making a dummy shaft to penetrate through the opening on the eye plate steel plates on the same side, installing a short pipe support between the two eye plate steel plates forming one eye plate, and welding the eye plates for fixation;
and S9, pulling a steel wire rope by using two reference points to enable the steel wire rope to penetrate through the hole in the eye plate steel plate on the same side, enabling the steel wire rope to be in a tensioning state, and determining four sample punching marks on the eye plate in four directions by using the steel wire rope as a reference, wherein the distances between the four sample punching marks and the steel wire rope are the same.
Further, after the eye plate is welded and fixed, the dummy shaft and the short pipe support are taken down, the connection between the stern door plate and the stern springboard and the jig frame is respectively removed, the hole boring is carried out by taking the centers of the four sample punch marks as a reference, and the hole center of the steel plate of the eye plate and the distance between the eye plates are measured again in the hole boring process.
Further, in S1, before splicing and positioning, the anti-skid blocks are installed on the board of the stern springboard, and after the anti-skid blocks are installed, the flatness is corrected, and then splicing and positioning are performed.
Further, in S6, a template is respectively installed on both sides of the eye plate on one side of the stern door panel and the stern ramp panel where the eye plate is installed, and a reference point is determined on the template by measurement.
A stern door springboard is manufactured according to the manufacturing process of the stern door springboard.
Compared with the prior art, the method has the advantages that the manufacturing process of the invention is adopted, the installation and processing of the eye plate are completed in the processing stage, the installation of the stern door springboard in the later stage is facilitated, the construction efficiency is improved, the installation and processing of the eye plate are advanced, the requirement on the installation precision is high, the accurate installation of the eye plate in the stern door springboard stage is realized through the scheme of the application, and the installation quality of the stern door springboard in the later stage is ensured.
Drawings
Fig. 1 is a schematic view of a mounting structure of a stern door springboard.
FIG. 2 is a schematic view of the installation of a U-shaped groove on the stern ramp of the present invention.
Fig. 3 is a schematic view of the installation of the T-shaped section on the stern ramp of the invention.
Fig. 4 is a schematic view of the anti-skid mounting on the transom of the present invention.
Fig. 5 is a schematic view of the installation of the ocular plate of the present invention.
FIG. 6 is a schematic view of the dummy shaft installation of the present invention.
Fig. 7 is a schematic drawing of the present invention with a steel cable inserted.
FIG. 8 is a flow chart of the manufacturing process of the stern door springboard of the invention.
In the figure, 1, a stern door; 2. a stern ramp; 3. anti-skid blocks; 4. anti-skid square steel; 5. anti-skid round steel; 6. a U-shaped groove; 7. a T-shaped section; 8. an eye plate steel plate; 9. opening a hole; 10. supporting the short pipe; 11. a dummy shaft; 12. a wire rope; 13. and (4) template.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
a kind of stern door springboard manufacturing process, as shown in figure 1-7, this process is used for processing and making the stern door springboard, the stern door springboard includes stern door 1 and stern springboard 2 two parts make up, as shown in figure 1, the stern door 1 can be turned over upwards, the stern springboard 2 can be turned over downwards. Traditional manufacture craft just carries out the installation of eye plate at installation stern door regulation stage, and the installation is debugged on the spot, in order to accelerate the efficiency of building, this application is installed the installation of eye plate in advance to stern door springboard preparation stage, compares stern door springboard installation site and carries out the eye plate installation, installs the installation eye plate in advance and has the location degree of difficulty, needs the location of strict control eye plate and the roughness of stern door springboard, provides following scheme from this:
s1, stern door 1 and stern ramp 2 are built by a plurality of stern door panels and a plurality of stern ramp panel makeup respectively, before the makeup, still need install non slipping spur 3, and non slipping spur 3 divide into two kinds of non slipping square steel 4 and non slipping round steel 5, with non slipping spur 3 welded fastening on stern ramp panel, the welding back probably produces the deformation, influences follow-up makeup, consequently still needs to carry out the flame to stern ramp panel and corrects.
And then manufacturing a jig frame, drawing a jig frame central line, and respectively positioning the spliced plates of the stern door panel and the stern ramp panel, wherein one surface provided with the antiskid blocks 3 is turned downwards before the spliced plates, the two sides are gradually paved and positioned along the jig frame central line, the centers of the paved plates are aligned with the jig frame central line, and the stern door panel and the stern ramp panel are fixed with the jig frame by spot welding.
And S2, after the positioning of the jointed boards is finished, structure marking is needed to be carried out so as to facilitate the installation of structural members. When the structure is scribed, in order to offset the shrinkage influence of subsequent welding and firer, 1mm welding shrinkage compensation amount is added every 1m length. After the structure is scribed, the U-shaped grooves 6 are firstly hung on the stern door 1 and the stern ramp 2, then the T-shaped sections 7 are installed, the U-shaped grooves 6 are evenly and longitudinally distributed on the stern door 1 and the stern ramp 2, the T-shaped sections 7 are vertically arranged relative to the U-shaped grooves 6, and the T-shaped sections 7 are installed on the U-shaped grooves 6. When the structural member is welded, the U-shaped groove 6 is welded by using a fillet welding machine, longitudinal bones are welded at two intervals after one gear is burnt out according to the sequence of split backing welding, and the longitudinal bones are welded according to butt welding, vertical fillet welding and flat fillet welding.
S3, when the eye plate is positioned and installed, the method comprises the following steps:
s6, determining two reference points at one side of a stern door 1 and one side of a stern ramp 2, where eye plates need to be installed, and determining the reference points to fix two sample plates 13 through point welding, so that the installation position of the eye plates is located between the two sample plates 13, taking the stern ramp 2 as an example, measuring the center position of the eye plates, namely the reference points, on the sample plates 13 according to design drawing data, and ensuring that the positions of the reference points on the two sample plates 13 are consistent relative to the stern ramp;
s7, enabling one eye plate to comprise two eye plate steel plates 8, enabling the eye plate steel plates to be provided with openings 9, enabling a steel wire rope 12 to penetrate through the openings 9 in the eye plate steel plates 8, fixing two ends of the steel wire rope 12 on two reference points respectively, straightening and tightening the steel wire rope 12, adjusting the positions of the steel plate eye plates to enable the steel wire rope 12 to penetrate through the centers of the openings 9, and positioning and spot-welding the eye plate steel plates on a stern door plate and a stern springboard as shown in fig. 7;
s8, removing the steel wire rope, making a dummy shaft to penetrate through the opening of the eye plate steel plate, controlling the concentricity of the eye plate steel plate 8 to keep unchanged, installing a short pipe support 10 between the two eye plate steel plates 8 of the same eye plate to ensure that the distance between the two eye plate steel plates 8 is unchanged, and then welding and fixing the eye plate steel plates 8 on the stern door 1 and the stern springboard 2;
s9, after welding, removing the connection between the stern door 1 and the stern ramp 2 and the jig frame to enable the stern door 1 and the stern ramp 2 to be in a free state, performing complete measurement according to a complete measurement diagram of the stern door 1 and the stern ramp 2, and measuring the levelness, the size and the local flatness of the stern door 1 and the stern ramp 2; and then, drawing the center of the hole 9 on the steel wire rope inspection eye plate 8 by using the two datum points, fixing the two ends of the steel wire rope with the two datum points respectively, determining sample punching marks on the steel wire rope 8 along four directions by using the steel wire rope as a datum, wherein the distances between the four sample punching marks and the steel wire rope are equal, and preparing for subsequent boring.
S4, after the eye plate is welded, flatness correction is respectively carried out on the stern door 1 and the stern springboard 2, the flatness correction mainly uses fire correction, the fire correction controls the temperature of heating flame, multiple heating at the same position is avoided, the correction quality is improved, correction is gradually carried out, and the baking is avoided.
S5, after the eye plate is welded and fixed, the dummy shaft 11 and the short pipe support 10 are taken down, the center of the four sample punching marks is used as a reference for boring, the center of the hole in the eye plate steel plate 8 and the distance between the eye plate steel plates are measured in the boring process, and the installation of the stern door and the stern ramp plate can be directly carried out subsequently.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (8)
1. A stern door springboard manufacturing process is characterized by comprising the following steps:
s1, manufacturing a jig frame, marking out a jig frame central line, and splicing and positioning a stern door panel and a stern ramp panel on the jig frame respectively to form a stern door panel and a stern ramp;
s2, respectively carrying out structure scribing on the stern door plate and the stern springboard, and assembling and welding a structural member after scribing is finished;
s3, positioning and mounting eye plates, wherein each eye plate comprises two parallel eye plate steel plates, and holes are formed in the eye plate steel plates;
s4, after the eye plate is welded, respectively correcting the flatness of the stern door plate and the stern springboard;
and S5, boring the eye plate.
2. The process of claim 1, wherein the stern door springboard is assembled and positioned step by step from the center line of the jig frame to both sides, and the stern door panel and the stern springboard panel are fixed to the jig frame by tack welding.
3. The process for manufacturing a stern door springboard as claimed in claim 1, wherein when the structure is scribed, 1mm of welding shrinkage compensation amount is added and released every 1m of length is added; and then hoisting the structural member, wherein the structural member comprises a U-shaped groove and a T-shaped section, hoisting the U-shaped groove on the stern door panel and the stern springboard panel, installing the T-shaped section, vertically arranging the T-shaped section relative to the U-shaped groove, and welding and fixing the U-shaped groove and the T-shaped section.
4. The process for manufacturing the stern door springboard as claimed in claim 1, wherein the positioning of the eye plate comprises the following steps:
s6, determining two reference points on one side of the mounting eye plates of the stern door plate and the stern ramp;
s7, pulling a steel wire rope by two reference points to enable the steel wire rope to penetrate through the opening on the steel plate of the eye plate on the same side, enabling the steel wire rope to be in a tensioning state, adjusting the position of the eye plate to enable the steel wire rope to penetrate through the center of the opening, and welding the eye plate on the stern door plate and the stern ramp in a positioning mode;
s8, taking down the steel wire rope, making a dummy shaft to penetrate through the opening on the eye plate steel plates on the same side, installing a short pipe support between the two eye plate steel plates forming one eye plate, and welding the eye plates for fixation;
and S9, pulling a steel wire rope by using two reference points to enable the steel wire rope to penetrate through the hole in the eye plate steel plate on the same side, enabling the steel wire rope to be in a tensioning state, and determining four sample punching marks on the eye plate in four directions by using the steel wire rope as a reference, wherein the distances between the four sample punching marks and the steel wire rope are the same.
5. The process for manufacturing the stern door springboard as claimed in claim 4, wherein after the eye plate is welded and fixed, the dummy shaft and the short pipe support are removed, the connection between the stern door plate and the stern springboard and the jig frame is respectively removed, the hole boring is carried out by taking the center of the four sample punch marks as a reference, and the hole center of the steel plate of the eye plate and the distance between the eye plates are measured again in the hole boring process.
6. The process of claim 1, wherein in S1, before splicing and positioning, the anti-skid blocks are installed on the face plate of the stern ramp, and after the anti-skid blocks are installed, the flatness is corrected and then splicing and positioning are performed.
7. The process of claim 4, wherein in S6, a template is installed on the side of the transom panel and the transom panel where the eye plate is installed, and a datum point is determined on the template by measuring.
8. A transom, characterized in that it is made by the process of making a transom according to any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383360.6A CN112572722A (en) | 2020-12-01 | 2020-12-01 | Manufacturing process of stern door springboard and stern door springboard manufactured by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383360.6A CN112572722A (en) | 2020-12-01 | 2020-12-01 | Manufacturing process of stern door springboard and stern door springboard manufactured by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112572722A true CN112572722A (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011383360.6A Pending CN112572722A (en) | 2020-12-01 | 2020-12-01 | Manufacturing process of stern door springboard and stern door springboard manufactured by using same |
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| Country | Link |
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| CN (1) | CN112572722A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084310A (en) * | 2021-12-27 | 2022-02-25 | 武昌船舶重工集团有限公司 | Method for installing bearing gangboard |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438404A (en) * | 2015-10-27 | 2016-03-30 | 沪东中华造船(集团)有限公司 | Mounting method for large stern ramp |
| CN106458299A (en) * | 2014-04-15 | 2017-02-22 | Tts海运公司 | Proceeding at a ramp for ships and a device for accomplish the told proceeding |
| CN110341878A (en) * | 2019-06-18 | 2019-10-18 | 沪东中华造船(集团)有限公司 | A kind of installation method of stern transom plate hinge |
| CN110510071A (en) * | 2019-07-15 | 2019-11-29 | 广州文冲船厂有限责任公司 | A kind of container ship stern jump installation method |
| KR20200030196A (en) * | 2018-09-12 | 2020-03-20 | 대우조선해양 주식회사 | Outside workbench for offshore structures |
-
2020
- 2020-12-01 CN CN202011383360.6A patent/CN112572722A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106458299A (en) * | 2014-04-15 | 2017-02-22 | Tts海运公司 | Proceeding at a ramp for ships and a device for accomplish the told proceeding |
| CN105438404A (en) * | 2015-10-27 | 2016-03-30 | 沪东中华造船(集团)有限公司 | Mounting method for large stern ramp |
| KR20200030196A (en) * | 2018-09-12 | 2020-03-20 | 대우조선해양 주식회사 | Outside workbench for offshore structures |
| CN110341878A (en) * | 2019-06-18 | 2019-10-18 | 沪东中华造船(集团)有限公司 | A kind of installation method of stern transom plate hinge |
| CN110510071A (en) * | 2019-07-15 | 2019-11-29 | 广州文冲船厂有限责任公司 | A kind of container ship stern jump installation method |
Non-Patent Citations (4)
| Title |
|---|
| 刘荣忠: "复杂线型大型舷侧门建造技术", 《船舶工程》 * |
| 刘靖峤: "跳板本体铰链中心线精度控制研究", 《船舶与海洋工程》 * |
| 王大文: "海峡客滚船跳板铰链安装工艺研究", 《珠江水运》 * |
| 黄中坚等: "大型艉跳板铰链对中及其测量技术研究", 《船舶与海洋工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084310A (en) * | 2021-12-27 | 2022-02-25 | 武昌船舶重工集团有限公司 | Method for installing bearing gangboard |
| CN114084310B (en) * | 2021-12-27 | 2022-08-30 | 武昌船舶重工集团有限公司 | Installation method of bearing gangplank |
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