CN110788822B - Method for surveying central line of hull deck - Google Patents
Method for surveying central line of hull deck Download PDFInfo
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- CN110788822B CN110788822B CN201910909279.8A CN201910909279A CN110788822B CN 110788822 B CN110788822 B CN 110788822B CN 201910909279 A CN201910909279 A CN 201910909279A CN 110788822 B CN110788822 B CN 110788822B
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- ship
- target
- deck
- laser theodolite
- surveying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
- B25H7/045—Devices, e.g. scribers, for marking characterised by constructional details of the marking elements
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- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a method for surveying the center line of a hull deck, which comprises the following steps: respectively arranging first calibration objects at the edges of the bow and the stern of the ship; arranging a laser theodolite outside the ship, wherein the laser theodolite crosses two points of a center line on the ground of the dock to barge a vertical plane on which the center line is positioned on a first calibration object; arranging a second calibration object at the edge of the barrier on the ship; and arranging a laser theodolite above the barrier, wherein the laser theodolite graduates the vertical plane where the central line is located on the second calibration object through the graduating marks of the two first calibration objects. The method has the advantages that the center line of each deck can be surveyed, and the reference line of the center line of each deck is the center line of the ground of the dock berth, so that the accuracy of the center line of each deck is improved. The method is simple and convenient to operate.
Description
Technical Field
The invention belongs to the field of ship construction, and particularly relates to a method for surveying a center line of a deck of a ship body.
Background
In the modern ship building process, the building of a hull structure basically adopts a sectional building method, the sectional building method plays an important role in improving the ship building speed and building efficiency and greatly shortening the ship building period, in the implementation process of the sectional building method, line positioning is the most basic element of the sectional building method, and a central line, a rib inspection line, a waterline and the like are the most common and most basic reference lines in the sectional building method. Meanwhile, many outfitting parts arranged on the deck need to be positioned according to the line during installation.
Generally, before each segment is loaded, the centerline of the hull on the layer below the segment needs to be surveyed and the segment is positioned based on the centerline. Similarly, when installing outfitting equipment arranged on a certain layer of deck, the center line of the deck needs to be determined to determine the distance between the outfitting equipment and the deck, so that the center line of the hull deck plays a crucial role in section carrying and equipment installation construction.
The traditional method for surveying the center line of the ship body deck adopts plumb, namely, the plumb is placed from an upper deck to a lower deck by utilizing the verticality of gravity on the upper deck and is aligned with the center line of the lower deck, so that the center line of the lower deck is drawn on the upper deck. The method is to draw the dock grid lines on the foundation layer by layer, which is easy to cause accumulated errors. Meanwhile, when the plumb cannot reach the lower deck, a hole must be formed in the upper deck temporarily, and therefore the central line of the upper deck can be surveyed.
The invention relates to a method for surveying a center line of a deck of a ship body, which aims to eliminate accumulated errors easily generated during surveying by using a traditional method and avoid any other holes or constructions on a ship body structure during surveying the center line of the deck.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for surveying the centerline of a deck of a ship body.
In order to realize the purpose, the invention adopts the following technical scheme:
a method of surveying a hull deck centerline, the method comprising: respectively arranging first calibration objects at the edges of the bow and stern of the ship; arranging a laser theodolite outside the ship, wherein the laser theodolite crosses two points of a center line on the ground of the dock to draw a vertical plane of the center line on a first calibration object; arranging a second calibration object at the edge of the barrier on the ship; arranging a laser theodolite above the barrier, wherein the laser theodolite graduates the vertical plane of the central line on a second calibration object through the graduating marks of the two first calibration objects; and arranging a laser theodolite between the second calibration object and the first calibration object close to the second calibration object, and surveying the center line on the deck between the edge of the ship and the edge of the obstacle by means of the laser theodolite, the barge marks on the first calibration object and the second calibration object.
Preferably, the centerline of the deck in each floor is surveyed by the method when the superstructure of the vessel is not yet on board.
Preferably, the boats and ships stern portion border sets up first mark target, the subaerial first position department in boats and ships stern portion outside sets up the laser theodolite, and the laser theodolite is refuted the vertical plane that the central line belongs to and is drawn first mark target through two points of dock subaerial central line.
Preferably, a second target is arranged on the edge of the bow of the ship, a laser theodolite is arranged at a second position on the ground outside the bow of the ship, and the laser theodolite is used for driving a vertical plane where a central line is located to the second target through two points of the central line on the ground of the dock.
Preferably, the laser theodolite is arranged at a third position on the obstacle above the ship, the third target is arranged on the rear edge of the obstacle, the fourth target is arranged on the front edge of the obstacle, and the laser theodolite is used for barging the vertical plane where the central line is located on the third target and the fourth target through the barging marks on the first target and the second target.
Preferably, a laser theodolite is arranged at a fourth position between the stern of the ship and the rear part of the obstacle, and the laser theodolite is used for surveying the center line on the deck between the stern of the ship and the rear part of the obstacle through the barge marks on the first target and the third target.
Preferably, a laser theodolite is arranged at a fifth position between the bow of the ship and the front part of the obstacle, and the laser theodolite is used for surveying the center line on the deck between the bow of the ship and the front part of the obstacle through the barge marks on the second target and the fourth target.
Compared with the prior art, the invention has the following beneficial effects:
1. the center line of each deck is drawn by the center line of the ground of the dock slipway, so that the accumulated error easily generated in the traditional method is avoided;
2. refute the drawing central line through the mark target at the installation, meet the barrier and destroy hull structure when having avoided using the plumb line.
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 view of the overall structure of the present invention.
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", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to 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. In the present case, marking refers to marking the surface of a calibration object by a device, and marking refers to surveying and marking for short, and refers to marking after surveying the position of a central line by the method.
As shown in fig. 1, the present embodiment provides a method for surveying a centerline of a deck of a ship, the method comprising: respectively arranging first calibration objects at the edges of the bow and the stern of the ship; arranging a laser theodolite on the outer side of the ship, wherein the laser theodolite traces a vertical plane of a central line 3 on a first calibration object through two points of the central line 3 on the ground of the dock; arranging a second calibration object at the edge of the barrier 4 on the ship; arranging a laser theodolite above the barrier 4, and performing line drawing on a vertical plane where the central line 3 is located on a second calibration object by the laser theodolite through line drawing marks of the two first calibration objects; and arranging a laser theodolite between the second calibration object and the first calibration object close to the second calibration object, and surveying a center line 3 on the deck between the edge of the ship and the edge of the obstacle 4 by means of the laser theodolite, the lapel marks on the first calibration object and the second calibration object.
And when the superstructure of the ship is not carried, surveying the center line 3 of the indoor deck of each layer by a passing method.
The edge of the stern of the ship is provided with a first target 21, a first position 11 on the ground outside the stern of the ship is provided with a laser theodolite, and the laser theodolite crosses two points of a central line 3 on the ground of the dock to barge the vertical plane where the central line 3 is located on the first target 21.
A second target 22 is arranged on the edge of the bow of the ship, a laser theodolite is arranged at a second position 12 on the ground outside the bow of the ship, and the laser theodolite crosses two points of a central line 3 on the ground of the dock to draw the vertical plane of the central line 3 on the second target 22.
A laser theodolite is arranged at a third position 13 on an obstacle 4 above a ship, a third target 23 is arranged on the rear edge of the obstacle 4, a fourth target 24 is arranged on the front edge of the obstacle 4, and the laser theodolite traces a vertical plane where a central line 3 is located on the third target 23 and the fourth target 24 through the trace marks on the first target 21 and the second target 22.
A laser theodolite is arranged at a fourth position 14 between the stern of the ship and the rear part of the barrier 4, and the laser theodolite is used for surveying the center line 3 on the deck between the stern of the ship and the rear part of the barrier 4 through barge marks on the first target 21 and the third target 23.
A laser theodolite is arranged at a fifth position 15 between the bow of the vessel and the front of the barrier 4, and the laser theodolite surveys the center line 3 on the deck between the bow of the vessel and the front of the barrier 4 through the barge marks on the second target 22 and the fourth target 24.
The laser theodolite in the used tool can be replaced by other instruments, and the replaced instruments can realize a vertical surface which is vertical to the ground horizontal plane and is determined by any two points in space, and a third point on the vertical surface is obtained. The marking tool is a steel needle, and the steel needle can be replaced by other marking tools.
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 method of surveying a centerline of a deck of a hull, the method comprising:
respectively arranging first calibration objects at the edges of the bow and stern of the ship;
arranging a laser theodolite outside the ship, wherein the laser theodolite traces a vertical plane where a central line (3) is located on a first calibration object through two points of the central line (3) on the ground of the dock;
arranging a second calibration object at the edge of the barrier (4) on the ship;
arranging a laser theodolite above the barrier (4), wherein the laser theodolite graduates the vertical plane where the central line (3) is located on a second calibration object through the graduating marks of the two first calibration objects;
and arranging a laser theodolite between the second calibration object and the first calibration object close to the second calibration object, and surveying a center line (3) on the deck between the edge of the ship and the edge of the obstacle (4) by means of the laser theodolite, the lapel marks on the first calibration object and the second calibration object.
2. A method for surveying the deck centre line of a ship's hull according to claim 1, characterized in that the indoor deck centre line (3) of each storey is surveyed by the method when the superstructure of the ship has not yet been on board.
3. The method for surveying the center line of the deck of the ship body according to the claim 1, wherein the edge of the stern part of the ship is provided with a first target (21), the laser theodolite is arranged at a first position (11) on the ground outside the stern part of the ship, and the laser theodolite crosses two points of the center line (3) on the ground of the dock to cross the vertical plane of the center line (3) to the first target (21).
4. A method for surveying the centre line of the deck of a ship hull according to claim 3, characterised in that a second target (22) is arranged at the edge of the bow of the ship, that a laser theodolite is arranged at a second position (12) on the ground outside the bow of the ship, and that the laser theodolite is arranged to cross the vertical plane of the centre line (3) onto the second target (22) through two points of the centre line (3) on the ground of the dock.
5. The method for surveying the center line of the deck of the ship body according to claim 4, wherein a laser theodolite is arranged at a third position (13) on the obstacle (4) above the ship, a third target (23) is arranged at the rear edge of the obstacle (4), a fourth target (24) is arranged at the front edge of the obstacle (4), and the laser theodolite is used for barging the vertical plane of the center line (3) on the third target (23) and the fourth target (24) through the barging marks on the first target (21) and the second target (22).
6. A method for surveying the deck centre line of a ship's hull according to claim 5, characterised in that a laser theodolite is arranged at a fourth location (14) between the stern of the ship and the rear part of the obstacle (4), which laser theodolite surveys the on-deck centre line (3) between the stern of the ship and the rear part of the obstacle (4) by means of barge marks on the first target (21), the third target (23).
7. A method for surveying the deck centre line of a ship's hull according to claim 6, characterised in that a laser theodolite is arranged at a fifth location (15) between the bow of the ship and the front of the obstacle (4), which laser theodolite surveys the deck centre line (3) between the bow of the ship and the front of the obstacle (4) by means of barge marks on the second target (22), the fourth target (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909279.8A CN110788822B (en) | 2019-09-25 | 2019-09-25 | Method for surveying central line of hull deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910909279.8A CN110788822B (en) | 2019-09-25 | 2019-09-25 | Method for surveying central line of hull deck |
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| Publication Number | Publication Date |
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| CN110788822A CN110788822A (en) | 2020-02-14 |
| CN110788822B true CN110788822B (en) | 2022-12-02 |
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| CN201910909279.8A Active CN110788822B (en) | 2019-09-25 | 2019-09-25 | Method for surveying central line of hull deck |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954044B (en) * | 2021-11-19 | 2024-06-11 | 沪东中华造船(集团)有限公司 | Investigation method for line extension line in ship centerline cabin |
| CN114571431B (en) * | 2022-03-24 | 2024-03-01 | 中船黄埔文冲船舶有限公司 | Scribing tool for hull plate water gauge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS554207A (en) * | 1978-06-23 | 1980-01-12 | Mitsubishi Heavy Ind Ltd | Method of transferring point and line from one side surface to corresponding point and line on other side of plate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168380A (en) * | 2007-07-18 | 2008-04-30 | 中国葛洲坝集团机械船舶有限公司 | Method for mounting ship three-main-engine three-airscrew main frame shafting |
| CN101643109B (en) * | 2008-08-07 | 2012-05-09 | 江南造船(集团)有限责任公司 | Method for centering centerline of subsection hull constructed in two-island mode |
| KR20120076784A (en) * | 2010-12-30 | 2012-07-10 | 대우조선해양 주식회사 | Alignment method for center line of rudder blade between upper casting and lower casting |
| CN109807850A (en) * | 2019-03-18 | 2019-05-28 | 重庆交通大学 | The method of drawing is surveyed in a kind of ship cross section |
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- 2019-09-25 CN CN201910909279.8A patent/CN110788822B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS554207A (en) * | 1978-06-23 | 1980-01-12 | Mitsubishi Heavy Ind Ltd | Method of transferring point and line from one side surface to corresponding point and line on other side of plate |
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| CN110788822A (en) | 2020-02-14 |
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