CN113682446A - Anchor system installation precision control method for ship construction - Google Patents
Anchor system installation precision control method for ship construction Download PDFInfo
- Publication number
- CN113682446A CN113682446A CN202111024803.7A CN202111024803A CN113682446A CN 113682446 A CN113682446 A CN 113682446A CN 202111024803 A CN202111024803 A CN 202111024803A CN 113682446 A CN113682446 A CN 113682446A
- Authority
- CN
- China
- Prior art keywords
- anchor
- line
- precision
- deck
- outer plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 239000003550 marker Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims 3
- 238000011160 research Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 241000935974 Paralichthys dentatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a control method for the installation precision of a ship building anchor system, which comprises the following steps: the construction precision of the subsection structure is controlled, complete three-dimensional precision completion measurement is carried out on the subsection, the subsection precision problem is eliminated, and a foundation is provided for outfitting precision control; selecting a deck central line and a first rib position line from a stern edge as an anchor system positioning datum line; according to the reference line, the hole positions of the anchor chain pipes on the outer plate and the deck are subjected to precision control; and holes are formed in the outer plate and the deck, and anchor chain pipes are installed. The smooth implementation of the control research on the installation accuracy of the anchor system opens the precedent of the accuracy control research on large-scale complex outfitting parts of a company, and the clear specifications of the outfitting accuracy control drawing, the accuracy measurement requirement and the like in the project have reference significance for other products of the same type, so that the overall accuracy level is improved.
Description
Technical Field
The invention belongs to the field of ship manufacturing, and particularly relates to a method for controlling the installation precision of an anchor system for ship building.
Background
The problems of serious deviation of the installation precision of an anchor system in a ship building are caused for many times, and include the occurrence of the conditions of folded angles of an anchor chain cylinder, incorrect anchor retracting position, non-adhesion of an anchor fluke and an anchor lip end face, incapability of normal working of a chain stopper and the like, so that a large amount of operation and correction operations of a general assembly department are caused. The main reasons are that the manufacturing precision of the subsection body is poor, the hole opening precision of the anchor chain pipe on the outer plate and the deck is poor, the installation angle of the anchor chain cylinder is poor, the positioning precision of the anchor platform is poor, the allowance of the lower opening of the enclosing plate of the anchor platform can not be cut, the installation position of the anchor lip is poor, the building difficulty is large, and the large difficulty exists in the aspect of the installation and the positioning of the anchor system. Meanwhile, uniform specifications and standards are lacked in the methods for measuring and inspecting the large-scale outfitting, so that inspection personnel cannot accurately monitor the installation quality of the outfitting and can only find the accuracy problem after the outfitting enters the final assembly stage.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the method for controlling the installation precision of the anchor system for ship building.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for controlling the installation accuracy of an anchor system for shipbuilding comprises the following steps:
1) and the construction precision of the subsection structure is controlled, the total station is utilized to carry out complete three-dimensional precision completion measurement on the subsection, the subsection precision problem is eliminated in time, and a foundation is provided for outfitting precision control.
2) And selecting and setting an anchor system positioning datum line, selecting a deck central line and a first rib bit line from a stern edge as the anchor system positioning datum line, and controlling the precision standard of the two datum line angle squares to be +/-3 mm.
3) In order to prevent the datum lines in the segments from being incapable of being measured after the structures are assembled, the two datum lines are parallelly offset towards the outer sides of the segments by the same distance and the same height, and are marked on the marker posts.
4) And (4) carrying out precision control on the positions of the holes of the anchor chain pipe on the outer plate and the deck by using a total station according to the datum line, and ensuring the installation angle of the anchor chain pipe.
5) And marking a contour line at the position of the holes of the outer plate and the deck of the anchor chain pipe by using a hole-opening design sample plate, and opening the holes, wherein the designed hole-opening sample plate is manufactured in a ratio of 1:1 to the actual hole opening size.
6) After the anchor chain pipe is installed and welded, the anchor platform is hoisted to the segmented outer plate, AB and CD reference lines are selected as reference lines by using the function of a total station reference line, waterline sample punching marks on the anchor platform are measured, the height precision of the waterline is ensured, and meanwhile, rib line sample punching marks on the anchor platform are measured by using rib lines as reference lines, so that the fore-aft direction precision of the anchor platform is ensured. Because the 100mm allowance is left at the butt joint surface of the anchor platform and the outer plate, the allowance is trimmed to the position by the deviation obtained by the method. The precision management standard is +/-5 mm.
7) After anchor platform tack welding is finished, hoisting the cast steel anchor lip to the anchor platform, and ensuring that the waterline sample punching and the rib line sample punching on the anchor lip are consistent with the sample punching position on the anchor platform.
Compared with the prior art, the invention has the beneficial effects that:
1. smooth implementation of anchor system installation accuracy control research starts the precedent of accuracy control research of large-scale complex outfitting parts of companies, and specifications of clear outfitting accuracy control drawings, accuracy measurement requirements and the like in projects have reference significance for other similar products, so that the overall accuracy level is improved;
2. the anchor system precision is improved, precision correction is reduced, meanwhile, the operation difficulty is reduced, correction operation in a narrow space in a wharf mooring state is avoided, multiple kinds of cross operation in a wharf stage are reduced, the operation environment is greatly improved, and after the control project is implemented, firing operation is basically eliminated on site.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic plan view of an extension reference line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1, the present embodiment provides a method for controlling the installation accuracy of a shipbuilding anchor line, the method including the steps of:
the method comprises the following steps: and in the stage of deck scribing, selecting a sectional center line and a first rib position from a stern edge as references to perform scribing operation, and ensuring the angular dimension of the center line and the rib position. And respectively shifting the central line to the outer parts of two ends of the sectional shipboard side in parallel by the same distance and the same height, and marking the central line on the standing poles, namely AB and CD, as a hole opening reference line of the subsequent outer plate anchor chain pipe. And meanwhile, the rib position line is translated to the outside of the subsection towards the stern part, the height equal to that of the rib position line is ensured, and the mark is marked on a vertical mark post, namely EF, and is used as a hole opening reference line of a subsequent outer plate anchor chain pipe. And (3) precision management standard: angle scale ± 3mm, deck level ± 3mm, outer plate line type half width: 5 mm.
Step two: after the subsection is completed, the total station is used for carrying out three-dimensional measurement data acquisition on the subsection, and three-dimensional analysis software is used for carrying out comparative analysis on actual data and theoretical model data, so that the horizontal and outer plate line type precision of a subsection deck is ensured. And (3) precision management standard: deck level 3mm, half width of planking line type: 5 mm.
Step three: and confirming the center position of the anchor chain hole deck opening, measuring the distance between the deck opening and the center line and the distance between the deck opening and the rib position line according to the data requirements of a design drawing by taking the sectional center line and the rib position line as the reference, and connecting the deck opening and the rib position line by using a chalk line, wherein the intersection point of the anchor chain hole deck opening and the chalk line is the center point of the opening.
Step four: designing and providing a deck opening sample plate, manufacturing the sample plate and the opening according to the proportion of 1:1, aligning a central point and a cross line on the opening sample plate with the center and the cross line of the opening on the deck and fixing the center and the cross line with an adhesive tape, and marking the edge of the extension sample plate by using a marking pen to obtain a circle, wherein the circle is a circle of the anchor chain pipe penetrating through the opening of the deck.
Step five: the marking anchor chain pipe runs through the center position of an opening hole on the outer plate, an AB line and a CD line which are deviated from the center line to the outboard are used as references, a total station is utilized to find out the position of a theoretical waterline and the position of a rib position line respectively through the function of a reference line according to design drawing data, the theoretical waterline and the rib position line are connected through a chalk line, and the intersection point of the marking anchor chain pipe is the center point of the opening hole.
Step six: designing and providing a deck hole forming sample plate, manufacturing the sample plate and the hole forming size in a ratio of 1:1, aligning a central point and a cross line on the hole forming sample plate with a hole forming center and a cross line on an outer plate, fixing the center and the cross line with an adhesive tape, and marking the edge of the sample plate by using a marking pen to obtain a circle, wherein the circle is a circle of an anchor chain pipe penetrating through a hole formed in a deck.
Step seven: and carrying out integral three-dimensional measurement and analysis on the segmented whole, the outer plate and the opening circle center of the deck by using a total station, and ensuring that the deviation of a circle center coordinate value and a theoretical coordinate value is within 5mm so as to ensure the installation angle of the anchor chain pipe after the opening.
Step eight: after the anchor chain pipe is installed and welded, the anchor platform is hoisted to the subsection outer plate, AB and CD reference lines are selected as reference lines by using the function of a total station reference line, waterline sample punching marks on the anchor platform are measured, the height precision of the waterline is ensured, and meanwhile, rib line sample punching marks on the anchor platform are measured by using a rib line EF as the reference line, so that the fore-aft direction precision of the anchor platform is ensured. Because the 100mm allowance is left at the butt joint surface of the anchor platform and the outer plate, the allowance is trimmed to the position by the deviation obtained by the method. The precision management standard is +/-5 mm.
Step nine: after anchor platform tack welding is finished, the steel casting anchor lip is installed on the anchor platform, the waterline sample punching and rib line sample punching on the anchor lip are ensured to be consistent with the sample punching position on the anchor platform, and finally welding is carried out.
The advantages are two points: first, the improvement of the installation accuracy of the mooring system is ensured, and at the same time, the improvement of the segment construction period is also effectively promoted. Secondly, the method can greatly save the installation time of the anchor system, effectively improve the integrity of the intermediate product for ship body construction, standardize the inspection method of the installation accuracy of the anchor system and the unification of the standards, and lay a good foundation for the subsequent ship construction.
The method has the effects of reducing cost, improving the efficiency, improving the product quality of each link and easily controlling the later construction precision.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (7)
1. A control method for installation accuracy of a shipbuilding mooring system, the control method comprising:
the construction precision of the subsection structure is controlled, complete three-dimensional precision completion measurement is carried out on the subsection, the subsection precision problem is eliminated, and a foundation is provided for outfitting precision control;
selecting a deck central line and a first rib position line from a stern edge as an anchor system positioning datum line;
according to the reference line, the hole positions of the anchor chain pipes on the outer plate and the deck are subjected to precision control;
and holes are formed in the outer plate and the deck, and anchor chain pipes are installed.
2. The method of claim 1, wherein in order to prevent the datum line in the segment from being unable to be measured after the structure is assembled, two datum lines are parallelly shifted to the outside of the segment by the same distance and the same height to establish an auxiliary datum line and marked on the marker post.
3. The method of claim 1, wherein the performing a complete three-dimensional precision finishing measurement of the section utilizes a total station.
4. The method of claim 1, wherein the drilling the openings in the outer plate and the deck comprises:
and marking the outline of the anchor chain pipe at the position of the holes on the outer plate and the deck and drilling the holes by using a hole-drilling design sample plate which is manufactured in a ratio of 1:1 to the actual size of the holes.
5. The control method for accuracy of installation of a vessel construction anchor line according to claim 2, further comprising:
after the anchor chain pipe is installed, the anchor platform is hoisted to the segmented outer plate, an auxiliary datum line after the central line is translated is selected as a reference line by using the function of a total station reference line, waterline sample punching marks on the anchor platform are measured, the height precision of the waterline is ensured, and meanwhile, rib line sample punching marks on the anchor platform are measured by using rib lines as the reference line, so that the fore-aft direction precision of the anchor platform is ensured.
6. The method for controlling the installation accuracy of the anchor system for use in shipbuilding according to claim 5, wherein a margin for deviation correction is left at the abutting surface of the anchor platform and the outer plate.
7. The method for controlling the installation accuracy of the anchor system for ship building according to claim 6, wherein after the anchor platform tack welding is finished, the steel casting anchor lip is hoisted to the anchor platform, so that the waterline sample punch and the rib line sample punch on the anchor lip are consistent with the corresponding sample punch positions on the anchor platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024803.7A CN113682446A (en) | 2021-09-02 | 2021-09-02 | Anchor system installation precision control method for ship construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111024803.7A CN113682446A (en) | 2021-09-02 | 2021-09-02 | Anchor system installation precision control method for ship construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113682446A true CN113682446A (en) | 2021-11-23 |
Family
ID=78584990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111024803.7A Pending CN113682446A (en) | 2021-09-02 | 2021-09-02 | Anchor system installation precision control method for ship construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113682446A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626266A (en) * | 2022-11-08 | 2023-01-20 | 武昌船舶重工集团有限公司 | Installation method of armor plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010035590A1 (en) * | 2008-09-24 | 2010-04-01 | 株式会社アイ・エイチ・アイ マリンユナイテッド | Bell mouth design method |
| CN105644714A (en) * | 2015-12-21 | 2016-06-08 | 广船国际有限公司 | Manufacturing and installing method of anchor bed assembly |
| CN109466690A (en) * | 2018-10-30 | 2019-03-15 | 广船国际有限公司 | A kind of installation method of ship anchor station component |
| CN111532379A (en) * | 2020-04-28 | 2020-08-14 | 江苏扬子鑫福造船有限公司 | Ship anchor platform structure and machining method thereof |
| CN112918634A (en) * | 2021-03-04 | 2021-06-08 | 江南造船(集团)有限责任公司 | Precision control method for ship anchoring system structure |
-
2021
- 2021-09-02 CN CN202111024803.7A patent/CN113682446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010035590A1 (en) * | 2008-09-24 | 2010-04-01 | 株式会社アイ・エイチ・アイ マリンユナイテッド | Bell mouth design method |
| CN105644714A (en) * | 2015-12-21 | 2016-06-08 | 广船国际有限公司 | Manufacturing and installing method of anchor bed assembly |
| CN109466690A (en) * | 2018-10-30 | 2019-03-15 | 广船国际有限公司 | A kind of installation method of ship anchor station component |
| CN111532379A (en) * | 2020-04-28 | 2020-08-14 | 江苏扬子鑫福造船有限公司 | Ship anchor platform structure and machining method thereof |
| CN112918634A (en) * | 2021-03-04 | 2021-06-08 | 江南造船(集团)有限责任公司 | Precision control method for ship anchoring system structure |
Non-Patent Citations (1)
| Title |
|---|
| 何琴琴等: "锚台、锚链筒及锚唇安装精度控制工艺", 《广东造船》, vol. 30, no. 121, pages 57 - 59 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626266A (en) * | 2022-11-08 | 2023-01-20 | 武昌船舶重工集团有限公司 | Installation method of armor plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111422323B (en) | Positioning reference line based sectional construction method for transverse bulkhead of ultra-large box ship | |
| CN111776164B (en) | High-precision rapid positioning method for side outer plate body | |
| CN108163143B (en) | Arc saddle web amendment technique in liquefied gas carrier with c-type flow container | |
| CN108189964B (en) | Method for determining ship stern baseline during shafting centering in ship construction | |
| CN113879480A (en) | Ship outboard mark suppress marking method and ship outer plate | |
| CN112407183A (en) | Lofting design method for hawse pipe and anchor platform | |
| CN113682446A (en) | Anchor system installation precision control method for ship construction | |
| CN113911285A (en) | High-precision building method for ship side door | |
| CN104590505B (en) | Straight pin cellular type spud leg construction precision control method | |
| CN112918634A (en) | Precision control method for ship anchoring system structure | |
| CN112278183A (en) | Method for building liquid dome deck sections of LNG ship in same tyre | |
| CN112092989A (en) | Immersed tube bearing device and positioning and mounting method thereof | |
| CN114179999B (en) | Quick positioning and mounting method for double-I-beam on cabin section of container ship | |
| CN110789684A (en) | Method for assembling large deck machinery body base | |
| CN113320659B (en) | Method for assembling flange and barrel of double-angle steering oar of ship | |
| CN114379741A (en) | Full-width five-total-section zero-allowance carrying method for ship | |
| CN113928504A (en) | Shaft-rudder integrated sectional construction process | |
| CN212637843U (en) | Immersed tube supporting device | |
| CN110788822B (en) | Method for surveying central line of hull deck | |
| CN112504047A (en) | General detection device of hull three-dimensional board assembly | |
| CN110789678A (en) | Method for butt joint assembly of bottom sections of chemical ship | |
| CN113978650B (en) | Control method for rapid positioning of ship shafting sectional closure | |
| CN113310473B (en) | Auxiliary tool for gate detection and method for detecting horizontal roundness of gate | |
| CN114455026A (en) | Ship body section slipway large folding method | |
| CN111139808B (en) | Method for carrying cantilever beam of self-elevating drilling platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211123 |
|
| RJ01 | Rejection of invention patent application after publication |