CN114248885A - Method for quickly installing and positioning ship bulk guide rail - Google Patents
Method for quickly installing and positioning ship bulk guide rail Download PDFInfo
- Publication number
- CN114248885A CN114248885A CN202111482006.3A CN202111482006A CN114248885A CN 114248885 A CN114248885 A CN 114248885A CN 202111482006 A CN202111482006 A CN 202111482006A CN 114248885 A CN114248885 A CN 114248885A
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- Prior art keywords
- bulk
- guide rail
- positioning
- plane
- centerline
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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
Abstract
The invention discloses a method for quickly installing and positioning a bulk guide rail of a ship, which comprises the following steps: step one, after the whole cabin is formed, a bulk plane central line is arranged on a bulk cabin surface, a point C is marked on the bulk plane central line, and a guide rail positioning line is arranged and marked according to the bulk plane central line; secondly, determining the positions of the rest and the guide rail hook according to the positions of the central line of the bulk plane and the guide rail positioning line; measuring and marking a datum point A of the bulk deck by using a measuring instrument; measuring and marking a guide rail plane datum point B of the opposite bulkheads of the bulk cabin surface by using a measuring instrument; calculating the cutting allowance of the guide rail connecting plate; sixthly, performing allowance pre-trimming on the guide rail connecting plate; and seventhly, hoisting and positioning the guide rail. The allowance of the guide rail connecting plate of the bulk cabin surface can be completed before the guide rail is hoisted, the allowance of the guide rail plane of the bulk cabin surface is determined in advance, and the purpose of quick and accurate positioning is realized.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a method for quickly installing and positioning a ship bulk guide rail.
Background
Along with the development of international shipping, the construction trend of container ships is larger and larger, ultra-large containers can not be used on an ultra-large bulk guide rail surface, the installation of the bulk guide rails of the container ships is always an important link of the workload of the whole cargo hold, and the 23000TEU container ships are taken as an example, 21 cabins of the whole ship are provided, wherein 7 cabins relate to the bulk guide rails, the structure of the bulk surface is formed, the lifting installation positioning and the cabin capacity detection of a crane are carried out by matching with the lifting installation positioning and the cabin capacity detection of the guide rails, and the scaffold is removed from the back; the test box works, the whole process is long in battle line and large in workload, almost occupies the time of the whole half of the ship service period plus the half of the wharf period, and is a 'tripfoot stone' in the ship construction period.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for quickly installing and positioning a bulk guide rail of a ship, aiming at solving the defects of the prior complex and tedious positioning process and operation in a complex environment and improving the installing and positioning efficiency of the bulk guide rail.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a quick positioning and mounting method for a bulk guide rail of a ship, which comprises the following steps:
step one, after the whole cabin is formed, a bulk plane central line is arranged on a bulk cabin surface, a point C is marked on the bulk plane central line, and a guide rail positioning line is arranged and marked according to the bulk plane central line;
secondly, determining the positions of the rest and the guide rail hook according to the positions of the central line of the bulk plane and the guide rail positioning line;
measuring and marking a datum point A of the bulk deck by using a measuring instrument;
measuring and marking a guide rail plane datum point B of the opposite bulkheads of the bulk cabin surface by using a measuring instrument;
calculating the cutting allowance of the guide rail connecting plate;
sixthly, performing allowance pre-trimming on the guide rail connecting plate;
and seventhly, hoisting and positioning the guide rail.
Preferably, in the first step, a bulk structure centerline is determined according to a hull centerline, and a bulk plane centerline is drawn according to the bulk structure centerline in combination with a compartment guide centerline of an opposite compartment.
As a preferred technical solution, the centerline of the bulk structure and the centerline of the bulk plane are located on the same straight line.
As a preferred technical solution, in the fifth step, the calculation process of the cutting allowance of the guide rail connecting plate is as follows: and delta L is (Dx-E) -F-G, wherein Dx is the space distance from the point A to the point B, E is the theoretical length of the guide rail connecting plate, F is the theoretical cabin capacity of the bulk guide rail, and G is the tolerance length.
As a preferred technical solution, the sixth step is specifically as follows:
s1, cutting all the guide rail connecting plate margins in advance according to delta L before hoisting the bulk guide rails;
and S2, installing the guide rail hook at a corresponding position in advance before hoisting the bulk guide rail.
As a preferred technical solution, the seventh step specifically includes the following steps:
(1) firing respective backer according to the guide rail positioning line before hoisting the bulk guide rail;
(2) when the bulk guide rails are hoisted, the bulk guide rails are hung on respective hooks, so that one side of the bulk guide rails is abutted against the backer to determine the left and right positions, and the front and the rear of the bulk guide rails are directly attached to the cabin wall.
As the preferred technical scheme, the error of the bulk guide rail during hoisting is within 2 mm.
Compared with the prior art, the invention has the following technical effects: the allowance of the guide rail connecting plate of the bulk cabin surface can be completed before the guide rail is hoisted, and the allowance of the bulk cabin surface guide rail plane is determined in advance through a scientific management method, a precision management theory and a modern measuring instrument, so that the aim of quick and accurate positioning is fulfilled.
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.
Figure 1 is a diagram of the position of the bulk deck and the compartments.
Fig. 2 is a diagram showing a positional relationship of a guide rail positioning line.
Fig. 3 is a diagram showing a positional relationship between the backer and the bulk guide.
Wherein the reference numerals are specified as follows: bulk deck 1, compartment 2, bulk plane center line 3, guide rail positioning line 4, guide rail hook 5, backer 6, compartment guide rail center line 7 and bulk guide rail 8.
Detailed Description
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.
The invention provides a quick positioning and mounting method based on the combination of a control method of precision management and a modern measuring instrument on the basis of the conventional guide rail mounting and positioning, aiming at solving the problems of the conventional complex and tedious positioning process and the purpose of operation in a complex environment, and aiming at improving the efficiency of mounting and positioning bulk guide rails and shortening the construction period.
The embodiment provides a method for quickly installing and positioning a bulk guide rail of a ship, which comprises the following steps:
step one, after the whole cabin is formed, determining a centerline of a bulk structure according to a centerline of a ship body, and drawing out a centerline 3 of a bulk plane according to the centerline of the bulk structure in combination with a centerline 7 of a compartment guide rail of an opposite compartment 2. Marking a point C on the central line 3 of the bulk plane, and opening and marking a guide rail positioning line 4 according to the central line 3 of the bulk plane. The bulk structure centerline is collinear with the bulk plane centerline 3.
And step two, determining the positions of the backer 6 and the guide rail hook 5 according to the positions of the bulk plane central line 3 and the guide rail positioning line 4, wherein the allowable deviation is +/-1 mm.
And step three, measuring and marking the reference point A of the bulk cabin surface 1 by using a measuring instrument.
And step four, measuring and marking a guide rail plane datum point B of the opposite compartment 2 of the bulk deck 1 by using a measuring instrument.
And step five, calculating the cutting allowance of the guide rail connecting plate. Δ L ═ F-G, (Dx-E) -F-G, where Dx is the spatial distance from point a to point B, E is the theoretical length of the guide rail connection plate, F is the theoretical cabin volume of the bulk guide rail 8, and G is the tolerance length. The known theoretical cabin capacity (the distance between the front end and the rear end of the guide rail) is 12227mm, the length of the guide rail connecting plate is 157mm, the spatial distance Dx from the point A to the point B and the actual cabin capacity is Dx-157, so that the conditions of allowance cutting error of the guide rail connecting plate and flatness error of a bulk surface are avoided, and the tolerance of minus 3mm is made on the bulk guide rail 8 by combining the functionality of the actual use of the guide rail.
And step six, performing allowance pre-trimming on the guide rail connecting plate. The method specifically comprises the following steps:
s1, cutting all the guide rail connecting plate margins in advance according to delta L before hoisting the bulk guide rail 8;
and S2, before the bulk guide rail 8 is hoisted, the guide rail hook 5 is installed at a corresponding position in advance.
And seventhly, hoisting and positioning the guide rail. The method specifically comprises the following steps:
(1) before the bulk guide rails 8 are hoisted, the backer 6 is fired according to the guide rail positioning lines 4;
(2) when the bulk guide rails 8 are hoisted, the bulk guide rails 8 are hung on respective hooks, one side of each bulk guide rail 8 abuts against the backrest 6 to determine the left and right positions, and the front and back directions are directly attached to the cabin wall due to the fact that the guide rail connecting plates are trimmed in advance. The error of the bulk guide rail 8 during hoisting is within 2 mm. The bulk rails 8 can now be assembled and welded.
The installation of the bulk guide rail 8 of the whole bulk surface can be completed by repeating the steps according to the method.
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 for quickly installing and positioning a bulk guide rail of a ship is characterized by comprising the following steps:
step one, after the whole cabin is formed, a bulk plane central line is arranged on a bulk cabin surface, a point C is marked on the bulk plane central line, and a guide rail positioning line is arranged and marked according to the bulk plane central line;
secondly, determining the positions of the rest and the guide rail hook according to the positions of the central line of the bulk plane and the guide rail positioning line;
measuring and marking a datum point A of the bulk deck by using a measuring instrument;
measuring and marking a guide rail plane datum point B of the opposite bulkheads of the bulk cabin surface by using a measuring instrument;
calculating the cutting allowance of the guide rail connecting plate;
sixthly, performing allowance pre-trimming on the guide rail connecting plate;
and seventhly, hoisting and positioning the guide rail.
2. The method for rapid installation and positioning of a ship bulk guide rail as claimed in claim 1, wherein in the first step, the bulk structure centerline is determined according to the hull centerline, and the bulk plane centerline is drawn according to the bulk structure centerline in combination with the compartment guide rail centerline of the opposite compartment.
3. The method for quickly installing and positioning the bulk guide rails of the ship as claimed in claim 1, wherein the centerline of the bulk structure is aligned with the centerline of the bulk plane.
4. The method for quickly installing and positioning the ship bulk guide rail as claimed in claim 1, wherein in the fifth step, the cutting allowance of the guide rail connecting plate is calculated by the following steps: and delta L is (Dx-E) -F-G, wherein Dx is the space distance from the point A to the point B, E is the theoretical length of the guide rail connecting plate, F is the theoretical cabin capacity of the bulk guide rail, and G is the tolerance length.
5. The method for quickly installing and positioning the ship bulk guide rail as claimed in claim 1, wherein the sixth step is as follows:
s1, cutting all the guide rail connecting plate margins in advance according to delta L before hoisting the bulk guide rails;
and S2, installing the guide rail hook at a corresponding position in advance before hoisting the bulk guide rail.
6. The method for quickly installing and positioning the ship bulk guide rail as claimed in claim 1, wherein the seventh step specifically comprises the following steps:
(1) firing respective backer according to the guide rail positioning line before hoisting the bulk guide rail;
(2) when the bulk guide rails are hoisted, the bulk guide rails are hung on respective hooks, so that one side of the bulk guide rails is abutted against the backer to determine the left and right positions, and the front and the rear of the bulk guide rails are directly attached to the cabin wall.
7. The method for quickly installing and positioning the bulk guide rails of the ships according to claim 6, wherein the error of the hoisting of the bulk guide rails is within 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482006.3A CN114248885A (en) | 2021-12-06 | 2021-12-06 | Method for quickly installing and positioning ship bulk guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482006.3A CN114248885A (en) | 2021-12-06 | 2021-12-06 | Method for quickly installing and positioning ship bulk guide rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114248885A true CN114248885A (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111482006.3A Pending CN114248885A (en) | 2021-12-06 | 2021-12-06 | Method for quickly installing and positioning ship bulk guide rail |
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| CN (1) | CN114248885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735155A (en) * | 2022-04-02 | 2022-07-12 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
-
2021
- 2021-12-06 CN CN202111482006.3A patent/CN114248885A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114735155A (en) * | 2022-04-02 | 2022-07-12 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
| CN114735155B (en) * | 2022-04-02 | 2023-03-14 | 江南造船(集团)有限责任公司 | Installation method of corner guide rail of container ship |
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