WO2019000753A1 - Method for mounting main engine bedplate and gearbox bedplate at block erection stage - Google Patents
Method for mounting main engine bedplate and gearbox bedplate at block erection stage Download PDFInfo
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- WO2019000753A1 WO2019000753A1 PCT/CN2017/108829 CN2017108829W WO2019000753A1 WO 2019000753 A1 WO2019000753 A1 WO 2019000753A1 CN 2017108829 W CN2017108829 W CN 2017108829W WO 2019000753 A1 WO2019000753 A1 WO 2019000753A1
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- bedplate
- gear box
- base
- main
- gearbox
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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
- B63B71/00—Designing vessels; Predicting their performance
Definitions
- the invention relates to the technical field of ship construction, in particular to a method for installing a main part seat and a gear box seat.
- the main frame and the gear box seat are important components that need to be positioned during the construction of the ship.
- the precise fixing of the position is the positioning reference of the subsequent large-sized yoke, the stern tube and the intermediate bearing base.
- the main base and the gear box base are separately segmented and installed on the bottom section of the nacelle.
- the main frame and the gear box seat are hoisted and installed in the dock. This method often delays the time of pulling the cable project and restricts the dock cycle.
- the on-site armor takes up a large space at the same time, and the construction space is limited, and the working environment is poor, which leads to construction difficulties.
- the object of the present invention is to provide a method for installing the main frame and the gear box seat at the general stage, which can solve the problem that the installation period in the dock is long, the cable is affected in advance, and the on-site working environment is poor.
- the installation method of the main frame and the gear box seat total stage is used for installing the main base and the gear box seat in the total section, including the following steps:
- the bottom section of the nacelle is positioned to form a total section of the bottom;
- the bottom plate of the bottom section can be marked with the base line of the main frame and the gear box seat, and the corresponding reference line;
- master base and gearbox seat segmentation include the following steps:
- the hanging wire hammer is positioned according to the pedestal panel of the ground scribe line, and the projection line of the sill of the pedestal panel is used for positioning;
- the base frame and the gear box seat inner base frame data are measured by pulling straight lines to ensure the horizontal data of the segment inner bottom plate, the main frame and the gear box.
- the horizontal deviation of the bottom plate of the seat segment should be controlled within ⁇ 5mm;
- the horizontal data of the main frame and the gear box base are retested, and the deviation is adjusted when the deviation exceeds 10 mm.
- the welding process is: according to the principle of the first vertical fillet welding and the flat fillet weld, the welding is performed from the middle to the two sides.
- FIG. 1 is a distribution diagram of a main assembly and a gear box seat in an embodiment of a mounting method of a main base and a gear box base of the present invention
- FIG. 2 is a schematic view showing the main assembly and the gear box seat in the stage of the production process in an embodiment of the method for mounting the main assembly and the gear box base of the present invention
- FIG. 3 is a schematic cross-sectional view showing the main assembly and the gear box seat in the stage of the production stage in the embodiment of the mounting method of the main assembly and the gear box base of the present invention
- FIG. 4 is a transverse cross-sectional view showing the main assembly and the gear box seat in the stage of the production process in an embodiment of the mounting method of the main assembly and the gear box base of the present invention
- FIG. 5 is a schematic view showing the mounting stage of the main assembly and the gear box seat in the general section of the main assembly and the gear box base assembly stage of the present invention
- FIG. 6 is a schematic view showing the welding of the main base and the gear box seat in the main stage installation stage in an embodiment of the mounting method of the main base and the gear box base of the present invention.
- A-axis centerline (gearbox output axis); B-bar; a-host axis; b-base Projection outside the panel; projection line inside the c-base panel; d-base panel ⁇ projection line; e-base panel ⁇ projection line; f-base panel closing stitch; g-base panel edge projection.
- FIG. 1 is a distribution diagram of a main body seat and a gear box seat in an embodiment of a method for mounting a main assembly and a gear box base in a general stage of the present invention, wherein the main base and the gear box base are two pieces, which are divided into: starboard
- the main base and the gearbox base are divided into an integral segment MS31; the port side main frame and the gearbox base are divided into an integral segment MS32.
- the bottom of the nacelle is divided into a starboard total section D31 and a port side total section D32.
- the mounting method of the main frame and the gear box base stage is used to install the main base and the gear box seat in the total section, including the following steps:
- Ground scribing, tire frame production, the rib line and the shaft center line A are used to open the tire frame cross line on the ground.
- the main axis a is drawn on the ground, the base panel is closed, and the stitching f is Projection line g at the edge of the base panel; mark the marked line for subsequent positioning and inspection;
- the hanging wire hammer is positioned according to the pedestal panel of the ground scribe line and the projection line of the pedestal panel edge.
- the horizontal frame data of the inner base and the gear box seat are measured by pulling straight line to ensure the horizontal data of the inner bottom plate of the segment, and the horizontal deviation of the inner bottom plate of the main frame and the gear box seat segment should be The control is within ⁇ 5mm; after the main assembly and the gearbox seat segment are completed, the horizontal data of the main frame and the gearbox seat are retested, and the deviation is adjusted when the deviation exceeds 10mm.
- the bottom section of the nacelle is positioned to form the bottom section; the bottom section of the nacelle refers to the bottom section where the main engine and the gear box seat are installed, and the bottom section is combined on the ground to form the bottom section for the main frame and gear box. Seat installation.
- the horizontal data of the inner bottom plate of the bottom section is re-measured; the most important measured data of the total section is the level of the bottom plate in the total section. If the level is not good, it will easily affect the installation accuracy of the main frame and the gear box seat, so it is necessary to repeatedly measure; At the same time, the measurement level can also provide data guidance for the lower limit line of the main frame and the gear box seat. If the level of the bottom plate in the total section is low, the remaining amount of the lower seat of the main frame and the gear box can be cut less. The level of the bottom plate in the total section is high, and the margin is more cut. However, if the horizontal deviation is too much, the level of the main seat and the gear box seat is difficult to be compensated when the main seat and the gear box seat are insufficiently compensated, which affects the installation accuracy.
- the bottom plate of the bottom section can draw the base line of the main frame and the gear box seat, and the corresponding reference line; for example, the main axis a, the outer projection line b of the base panel, the inner projection line c of the base panel, the base panel ⁇ projection Line d, pedestal panel ⁇ projection line e, pedestal panel closing stitch f, pedestal panel edge projection g, and the like.
- the lower leg line is pre-arranged on the bottom plate of the main section before lifting, and is used to position the main frame and the gear box seat, also called the structural installation line; after the main frame is hoisted, the structure is aligned by the corresponding structural line. And installation.
- the baseline is the general direction for controlling the positioning of the main frame, and the structural line controls the small direction.
- the primary guarantee is the baseline.
- the baseline is generally the hull centerline and the selected rib line, which is based on the specific structure.
- the welding process the panel data of the main frame and the gear box seat are monitored; further, the welding process is: according to the principle of the first vertical fillet welding and the flat fillet weld, the welding is performed from the middle to the two sides.
- the main seat and the gear box seat are first segmented, then the total section of the bottom of the nacelle is prepared, and then the main frame and the gear box seat are installed on the bottom total section, and the main frame and the gear box are docked.
- the work that can be installed in the project is completed in advance to the final group stage, which creates favorable conditions for the advancement of the cable project in the dock, shortens the dock cycle of the ship; the work in the dock, the cross work is separated, and the on-site construction environment is improved. In the later stage, the hoisting and loading is carried out.
- the lifting deformation of the total section is controlled, and the total section is positioned according to the axis and the height of the base, and the axis data is not affected.
- the main engine and the gear box seat are installed in the general stage, the workload in the docking phase is transferred to the ground stage, and the process is moved forward, shortening the docking cycle.
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Gears, Cams (AREA)
Abstract
A method for mounting a main engine bedplate and a gearbox bedplate at a block erection stage, which is used for mounting the main engine bedplate and the gearbox bedplate on a bottom block, comprising the following steps: fabricating in sections the main engine bedplate and the gearbox bedplate; welding at proper positions assemblies and sub-assemblies of a bottom of an engine room to erect a bottom block; repeatedly measuring horizontal data of a bottom plate in the bottom block; surveying and delimiting placing lines and corresponding datum lines of the main engine bedplate and the gearbox bedplate on the bottom plate in the bottom block; erecting marker posts (B) at rib positions of the bottom plate in the bottom block, close to the main engine bedplate and the gearbox bedplate, respectively, and marking a height of an axis; hoisting and locating the main engine bedplate and the gearbox bedplate; horizontally adjusting the bedplates to determine an underside allowance, and cutting the allowance; hoisting the main engine bedplate and the gearbox bedplate back to the previous position; tack welding and assembling the bedplates, and reporting for an inspection; constructing according to a welding process and monitoring panel data of the main engine bedplate and the gearbox bedplate; and staying lines for inspection and performing local distortion correction by use of flame. The method can solve the problems of long mounting period in a shipyard, harsh field operation environment, and failure to advance the operation of sighting and boring.
Description
本发明涉及船舶建造技术领域，尤其涉及主机座、齿轮箱座总段阶段的安装方法。The invention relates to the technical field of ship construction, in particular to a method for installing a main part seat and a gear box seat.
主机座、齿轮箱座是船舶建造当中需要进行定位的重要部件，其位置的精确固定是后续大小轴架、艉轴管和中间轴承基座的定位基准。The main frame and the gear box seat are important components that need to be positioned during the construction of the ship. The precise fixing of the position is the positioning reference of the subsequent large-sized yoke, the stern tube and the intermediate bearing base.
现有技术中，主机座、齿轮箱座为单独分段制作，安装在机舱底部分段上。通常是机舱底部分段在坞内装焊完毕后，主机座、齿轮箱座再吊装至坞内安装。这种方式常常拖延拉线望光项目的时间，制约船坞周期。另外，坞内安装，现场舾装件同时展开时占用空间较大，而施工空间有限，作业环境较差，导致施工困难。In the prior art, the main base and the gear box base are separately segmented and installed on the bottom section of the nacelle. Usually, after the bottom section of the nacelle is finished in the dock, the main frame and the gear box seat are hoisted and installed in the dock. This method often delays the time of pulling the cable project and restricts the dock cycle. In addition, in the dock installation, the on-site armor takes up a large space at the same time, and the construction space is limited, and the working environment is poor, which leads to construction difficulties.
发明内容Summary of the invention
本发明的目的在于提出一种主机座、齿轮箱座总段阶段的安装方法，能够解决坞内安装周期长、影响拉线望光提前展开、现场作业环境差的问题。The object of the present invention is to provide a method for installing the main frame and the gear box seat at the general stage, which can solve the problem that the installation period in the dock is long, the cable is affected in advance, and the on-site working environment is poor.
为达此目的，本发明采用以下技术方案：To this end, the present invention employs the following technical solutions:
主机座、齿轮箱座总段阶段的安装方法，用于将主机座和齿轮箱座在总段内进行安装，包括如下步骤：The installation method of the main frame and the gear box seat total stage is used for installing the main base and the gear box seat in the total section, including the following steps:
1)主机座和齿轮箱座分段制作；1) Segmentation of the main base and the gear box seat;
2)机舱底部分段定位总组形成底部总段；2) The bottom section of the nacelle is positioned to form a total section of the bottom;
3)底部总段内底板的水平数据复测；3) Re-measure the horizontal data of the bottom plate in the bottom section;
4)底部总段内底板上堪划主机座和齿轮箱座下脚线、对应的基准线；
4) The bottom plate of the bottom section can be marked with the base line of the main frame and the gear box seat, and the corresponding reference line;
5)分别在底部内底板的靠近主机座和齿轮箱座的位置处的肋位位置树标杆，并作上轴线的高度标记；5) rib position bar at the position of the bottom inner bottom plate near the main base and the gear box seat, and the height mark of the upper axis;
6)主机座和齿轮箱座吊装定位；6) lifting and positioning of the main base and the gear box seat;
7)水平调整、确定下口余量，切割余量；7) Level adjustment, determine the remaining amount of the lower mouth, and cut the remaining amount;
8)主机座和齿轮箱座复位；8) The main base and the gear box seat are reset;
9)定位焊固定，装配报验；9) Positioning welding fixed, assembly inspection;
10)按焊接工艺进行施工，监控主机座和齿轮箱座的面板数据；10) Construction according to the welding process, monitoring the panel data of the main frame and the gear box seat;
11)拉线检验，局部火工矫正。11) Pull line inspection, local firework correction.
进一步地，主机座和齿轮箱座分段制作包括以下步骤：Further, the master base and the gearbox seat segmentation include the following steps:
A、地面划线，胎架制作，以肋位线及轴中心线在地面开出胎架十字线，根据胎架十字线分别在地面划出主机轴线、基座面板合拢缝线、基座面板边缘投影线；对所堪划线做好标记，留作后续定位及检验；A. Ground scribing, tire frame production, rib line and shaft center line are used to open the frame crosshair on the ground. According to the crosshair of the tire frame, the main axis is drawn on the ground, the pedestal panel is closed, and the pedestal panel is Edge projection line; mark the marked line for subsequent positioning and inspection;
B、胎架制作，胎架制作精度要求水平高度值偏差≤2mm；B, the production of the tire frame, the accuracy of the production of the tire frame requires a deviation of the horizontal height value ≤ 2mm;
C、胎架报验；C, the inspection of the tire carrier;
D、吊装基座面板上胎定位：吊线锤，根据地样划线中的基座面板合拢缝投影线、基座面板边缘投影线来进行定位；D. Positioning of the upper part of the hoisting base panel: the hanging wire hammer is positioned according to the pedestal panel of the ground scribe line, and the projection line of the sill of the pedestal panel is used for positioning;
E、结构划线；E, structural scribing;
F、吊装基座腹板，基座腹板吊装及装焊过程中，腹板垂直度偏差≤1.5mm；F, lifting the base web, pedestal web lifting and welding process, the vertical deviation of the web ≤ 1.5mm;
G、吊装基座横隔板和肋板；G, lifting base diaphragm and ribs;
H、安装其余组件。H. Install the remaining components.
更进一步地，主机座和齿轮箱座分段制作时，通过拉直线测量主机座和齿轮箱座分段内底板胎架数据，保证分段内底板水平数据，主机座和齿轮箱
座分段内底板水平偏差应控制在±5mm以内；Further, when the main base and the gear box seat are segmented, the base frame and the gear box seat inner base frame data are measured by pulling straight lines to ensure the horizontal data of the segment inner bottom plate, the main frame and the gear box.
The horizontal deviation of the bottom plate of the seat segment should be controlled within ±5mm;
主机座和齿轮箱座分段在总组完毕后，复测主机座和齿轮箱座总段水平数据，偏差超过10mm时调整。After the main assembly and the gear box seat segment are completed, the horizontal data of the main frame and the gear box base are retested, and the deviation is adjusted when the deviation exceeds 10 mm.
进一步地，焊接工艺为：按照先立角焊，再平角焊缝，从中间往两边对接施焊的原则进行焊接。Further, the welding process is: according to the principle of the first vertical fillet welding and the flat fillet weld, the welding is performed from the middle to the two sides.
本发明的主机座、齿轮箱座总段阶段的安装方法的运用，优点如下：The advantages of the installation method of the main seat and the gear box seat of the invention are as follows:
1、将主机座、齿轮箱座坞内才能安装的作业提前到总组阶段完成，为坞内拉线望光项目的提前创造了有利条件，缩短了型船船坞周期；1. The work that can be installed in the mainframe and the gearbox dock is advanced to the final group stage, which creates favorable conditions for the advancement of the cable project in the dock and shortens the ship docking cycle;
2、坞内作业地面制作，交叉作业分开，改善了现场施工环境。2. The ground working in the dock is made and the cross work is separated to improve the on-site construction environment.
图1是本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座的分布图；1 is a distribution diagram of a main assembly and a gear box seat in an embodiment of a mounting method of a main base and a gear box base of the present invention;
图2是本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座在分段制作阶段的示意图；2 is a schematic view showing the main assembly and the gear box seat in the stage of the production process in an embodiment of the method for mounting the main assembly and the gear box base of the present invention;
图3是本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座在分段制作阶段的划线示意图；3 is a schematic cross-sectional view showing the main assembly and the gear box seat in the stage of the production stage in the embodiment of the mounting method of the main assembly and the gear box base of the present invention;
图4是本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座在分段制作阶段的横向剖切示意图；4 is a transverse cross-sectional view showing the main assembly and the gear box seat in the stage of the production process in an embodiment of the mounting method of the main assembly and the gear box base of the present invention;
图5是本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座在总段安装阶段的示意图；5 is a schematic view showing the mounting stage of the main assembly and the gear box seat in the general section of the main assembly and the gear box base assembly stage of the present invention;
图6是本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座在总段安装阶段的焊接示意图。6 is a schematic view showing the welding of the main base and the gear box seat in the main stage installation stage in an embodiment of the mounting method of the main base and the gear box base of the present invention.
图中：A-轴中心线(齿轮箱输出轴线)；B-标杆；a-主机轴线；b-基座
面板外侧投影线；c-基座面板内侧投影线；d-基座面板艉投影线；e-基座面板艏投影线；f-基座面板合拢缝线；g-基座面板边缘投影。In the figure: A-axis centerline (gearbox output axis); B-bar; a-host axis; b-base
Projection outside the panel; projection line inside the c-base panel; d-base panel 艉 projection line; e-base panel 艏 projection line; f-base panel closing stitch; g-base panel edge projection.
下面结合附图1-6并通过具体实施方式来进一步说明本发明的技术方案。The technical solution of the present invention will be further described below with reference to the accompanying drawings 1-6 and by specific embodiments.
图1为本发明的主机座、齿轮箱座总段阶段的安装方法的一实施例中主机座和齿轮箱座的分布图，其中，主机座、齿轮箱座均为两件，分为：右舷主机座与齿轮箱基座，划分成一体分段MS31；左舷主机座与齿轮箱基座，划分成一体分段MS32。同样，机舱底部也分为右舷总段D31和左舷总段D32。1 is a distribution diagram of a main body seat and a gear box seat in an embodiment of a method for mounting a main assembly and a gear box base in a general stage of the present invention, wherein the main base and the gear box base are two pieces, which are divided into: starboard The main base and the gearbox base are divided into an integral segment MS31; the port side main frame and the gearbox base are divided into an integral segment MS32. Similarly, the bottom of the nacelle is divided into a starboard total section D31 and a port side total section D32.
如图2至6所示，主机座、齿轮箱座总段阶段的安装方法，用于将主机座和齿轮箱座在总段内进行安装，包括如下步骤：As shown in Figures 2 to 6, the mounting method of the main frame and the gear box base stage is used to install the main base and the gear box seat in the total section, including the following steps:
1)主机座和齿轮箱座分段制作；主机座和齿轮箱座分段制作包括以下步骤：1) The main base and the gear box seat are segmented; the main assembly and the gear box seat are manufactured in the following steps:
A、地面划线，胎架制作，以肋位线及轴中心线A在地面开出胎架十字线，根据胎架十字线分别在地面划出主机轴线a、基座面板合拢缝线f、基座面板边缘投影线g；对所堪划线做好标记，留作后续定位及检验；A. Ground scribing, tire frame production, the rib line and the shaft center line A are used to open the tire frame cross line on the ground. According to the tire frame cross line, the main axis a is drawn on the ground, the base panel is closed, and the stitching f is Projection line g at the edge of the base panel; mark the marked line for subsequent positioning and inspection;
B、胎架制作，胎架制作精度要求水平高度值偏差≤2mm；B, the production of the tire frame, the accuracy of the production of the tire frame requires a deviation of the horizontal height value ≤ 2mm;
C、胎架报验；C, the inspection of the tire carrier;
D、吊装基座面板上胎定位：吊线锤，根据地样划线中的基座面板合拢缝投影线、基座面板边缘投影线g来进行定位；D. Positioning of the upper part of the hoisting base panel: the hanging wire hammer is positioned according to the pedestal panel of the ground scribe line and the projection line of the pedestal panel edge.
E、结构划线；E, structural scribing;
F、吊装基座腹板，基座腹板吊装及装焊过程中，腹板垂直度偏差≤
1.5mm；F, hoisting the base web, pedestal web hoisting and welding process, the vertical deviation of the web ≤
1.5mm;
G、吊装基座横隔板和肋板；G, lifting base diaphragm and ribs;
H、安装其余组件。H. Install the remaining components.
主机座和齿轮箱座分段制作时，通过拉直线测量主机座和齿轮箱座分段内底板胎架数据，保证分段内底板水平数据，主机座和齿轮箱座分段内底板水平偏差应控制在±5mm以内；主机座和齿轮箱座分段在总组完毕后，复测主机座和齿轮箱座总段水平数据，偏差超过10mm时调整。When the main frame and the gear box seat are segmented, the horizontal frame data of the inner base and the gear box seat are measured by pulling straight line to ensure the horizontal data of the inner bottom plate of the segment, and the horizontal deviation of the inner bottom plate of the main frame and the gear box seat segment should be The control is within ±5mm; after the main assembly and the gearbox seat segment are completed, the horizontal data of the main frame and the gearbox seat are retested, and the deviation is adjusted when the deviation exceeds 10mm.
2)机舱底部分段定位总组形成底部总段；机舱底部分段指主机、齿轮箱座安装所在的底部分段，底部分段在地面组合起来形成底部总段，用于主机座、齿轮箱座安装。2) The bottom section of the nacelle is positioned to form the bottom section; the bottom section of the nacelle refers to the bottom section where the main engine and the gear box seat are installed, and the bottom section is combined on the ground to form the bottom section for the main frame and gear box. Seat installation.
3)底部总段内底板的水平数据复测；总段最主要测量的数据为总段内底板的水平，如果水平不好，容易影响主机座、齿轮箱座的安装精度，因而需要反复测量；同时测量水平也能够给主机座、齿轮箱座的下口划余量线提供数据指导，若总段内底板的水平低了，主机座、齿轮箱座下口的余量可以少割点，若总段内底板的水平高了，余量多割点。但是如果水平偏差太多，主机座、齿轮箱座下口余量不足以来补偿时，主机座、齿轮箱座的水平就难以保证，从而影响安装精度。3) The horizontal data of the inner bottom plate of the bottom section is re-measured; the most important measured data of the total section is the level of the bottom plate in the total section. If the level is not good, it will easily affect the installation accuracy of the main frame and the gear box seat, so it is necessary to repeatedly measure; At the same time, the measurement level can also provide data guidance for the lower limit line of the main frame and the gear box seat. If the level of the bottom plate in the total section is low, the remaining amount of the lower seat of the main frame and the gear box can be cut less. The level of the bottom plate in the total section is high, and the margin is more cut. However, if the horizontal deviation is too much, the level of the main seat and the gear box seat is difficult to be compensated when the main seat and the gear box seat are insufficiently compensated, which affects the installation accuracy.
4)底部总段内底板上堪划主机座和齿轮箱座下脚线、对应的基准线；如主机轴线a、基座面板外侧投影线b、基座面板内侧投影线c、基座面板艉投影线d、基座面板艏投影线e、基座面板合拢缝线f、基座面板边缘投影g等。下脚线是主机座吊装前，在总段内底板上提前勘划的，用来给主机座、齿轮箱座定位，也叫结构安装线；主机座吊装后通过结构对准相应的结构线来定位和安装。基准线是控制主机座定位的大方向，结构线控制小方向，因
而首要保证基准线。基准线一般为船体中心线与选定的肋位线，下脚线根据具体结构而定。4) The bottom plate of the bottom section can draw the base line of the main frame and the gear box seat, and the corresponding reference line; for example, the main axis a, the outer projection line b of the base panel, the inner projection line c of the base panel, the base panel 艉 projection Line d, pedestal panel 艏 projection line e, pedestal panel closing stitch f, pedestal panel edge projection g, and the like. The lower leg line is pre-arranged on the bottom plate of the main section before lifting, and is used to position the main frame and the gear box seat, also called the structural installation line; after the main frame is hoisted, the structure is aligned by the corresponding structural line. And installation. The baseline is the general direction for controlling the positioning of the main frame, and the structural line controls the small direction.
The primary guarantee is the baseline. The baseline is generally the hull centerline and the selected rib line, which is based on the specific structure.
5)分别在底部内底板的靠近主机座和齿轮箱座的位置处的肋位位置树标杆B，并作上轴线的高度标记；5) respectively, at the position of the bottom inner bottom plate near the main seat and the gear box seat, the tree position bar B, and the height mark of the upper axis;
6)主机座和齿轮箱座吊装定位；6) lifting and positioning of the main base and the gear box seat;
7)水平调整、确定下口余量，切割余量；7) Level adjustment, determine the remaining amount of the lower mouth, and cut the remaining amount;
8)主机座和齿轮箱座复位；8) The main base and the gear box seat are reset;
9)定位焊固定，装配报验；9) Positioning welding fixed, assembly inspection;
10)按焊接工艺进行施工，监控主机座和齿轮箱座的面板数据；进一步地，焊接工艺为：按照先立角焊，再平角焊缝，从中间往两边对接施焊的原则进行焊接。10) According to the welding process, the panel data of the main frame and the gear box seat are monitored; further, the welding process is: according to the principle of the first vertical fillet welding and the flat fillet weld, the welding is performed from the middle to the two sides.
11)拉线检验，局部火工矫正。11) Pull line inspection, local firework correction.
本发明的方法，通过先分段制作主机座和齿轮箱座，再制作机舱底部总段，再在底部总段上安装主机座总段和齿轮箱座总段，将主机座、齿轮箱座坞内才能安装的作业提前到总组阶段完成，为坞内拉线望光项目的提前创造了有利条件，缩短了型船船坞周期；坞内作业，交叉作业分开，改善了现场施工环境。后期总段吊装搭载，通过合理的吊码布置，控制总段的吊装变形，总段根据轴线与基座高度来进行定位，不影响轴线数据。在地面实现了主机、齿轮箱座在总段阶段安装，将船坞阶段工作量转移到地面阶段，工序前移，缩短了船坞周期。In the method of the invention, the main seat and the gear box seat are first segmented, then the total section of the bottom of the nacelle is prepared, and then the main frame and the gear box seat are installed on the bottom total section, and the main frame and the gear box are docked. The work that can be installed in the project is completed in advance to the final group stage, which creates favorable conditions for the advancement of the cable project in the dock, shortens the dock cycle of the ship; the work in the dock, the cross work is separated, and the on-site construction environment is improved. In the later stage, the hoisting and loading is carried out. Through reasonable lifting code arrangement, the lifting deformation of the total section is controlled, and the total section is positioned according to the axis and the height of the base, and the axis data is not affected. On the ground, the main engine and the gear box seat are installed in the general stage, the workload in the docking phase is transferred to the ground stage, and the process is moved forward, shortening the docking cycle.
以上结合具体实施例描述了本发明的技术原理。这些描述只是为了解释本发明的原理，而不能以任何方式解释为对本发明保护范围的限制。基于此处的解释，本领域的技术人员不需要付出创造性的劳动即可联想到本发明的
其它具体实施方式，这些方式都将落入本发明的保护范围之内。
The technical principles of the present invention have been described above in connection with specific embodiments. The descriptions are merely illustrative of the principles of the invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art can associate the present invention with no need for creative labor.
Other embodiments are intended to fall within the scope of the present invention.
Claims (4)
- 主机座、齿轮箱座总段阶段的安装方法，用于将主机座和齿轮箱座在总段内进行安装，其特征在于，包括如下步骤：The installation method of the main frame and the gear box seat total stage is used for installing the main base and the gear box seat in the general section, and is characterized in that the following steps are included:1)主机座和齿轮箱座分段制作；1) Segmentation of the main base and the gear box seat;2)机舱底部分段定位总组形成底部总段；2) The bottom section of the nacelle is positioned to form a total section of the bottom;3)底部总段内底板的水平数据复测；3) Re-measure the horizontal data of the bottom plate in the bottom section;4)底部总段内底板上堪划主机座和齿轮箱座下脚线、对应的基准线；4) The bottom plate of the bottom section can be marked with the base line of the main frame and the gear box seat, and the corresponding reference line;5)分别在底部内底板的靠近主机座和齿轮箱座的位置处的肋位位置树标杆，并作上轴线的高度标记；5) rib position bar at the position of the bottom inner bottom plate near the main base and the gear box seat, and the height mark of the upper axis;6)主机座和齿轮箱座吊装定位；6) lifting and positioning of the main base and the gear box seat;7)水平调整、确定下口余量，切割余量；7) Level adjustment, determine the remaining amount of the lower mouth, and cut the remaining amount;8)主机座和齿轮箱座复位；8) The main base and the gear box seat are reset;9)定位焊固定，装配报验；9) Positioning welding fixed, assembly inspection;10)按焊接工艺进行施工，监控主机座和齿轮箱座的面板数据；10) Construction according to the welding process, monitoring the panel data of the main frame and the gear box seat;11)拉线检验，局部火工矫正。11) Pull line inspection, local firework correction.
- 根据权利要求1所述的安装方法，其特征在于，主机座和齿轮箱座分段制作包括以下步骤：The mounting method according to claim 1, wherein the master base and the gearbox seat segmentation comprise the following steps:A、地面划线，胎架制作，以肋位线及轴中心线在地面开出胎架十字线，根据胎架十字线分别在地面划出主机轴线、基座面板合拢缝线、基座面板边缘投影线；对所堪划线做好标记，留作后续定位及检验；A. Ground scribing, tire frame production, rib line and shaft center line are used to open the frame crosshair on the ground. According to the crosshair of the tire frame, the main axis is drawn on the ground, the pedestal panel is closed, and the pedestal panel is Edge projection line; mark the marked line for subsequent positioning and inspection;B、胎架制作，胎架制作精度要求水平高度值偏差≤2mm；B, the production of the tire frame, the accuracy of the production of the tire frame requires a deviation of the horizontal height value ≤ 2mm;C、胎架报验；C, the inspection of the tire carrier;D、吊装基座面板上胎定位：吊线锤，根据地样划线中的基座面板合拢缝投影线、基座面板边缘投影线来进行定位； D. Positioning of the upper part of the hoisting base panel: the hanging wire hammer is positioned according to the pedestal panel of the ground scribe line, and the projection line of the sill of the pedestal panel is used for positioning;E、结构划线；E, structural scribing;F、吊装基座腹板，基座腹板吊装及装焊过程中，腹板垂直度偏差≤1.5mm；F, lifting the base web, pedestal web lifting and welding process, the vertical deviation of the web ≤ 1.5mm;G、吊装基座横隔板和肋板；G, lifting base diaphragm and ribs;H、安装其余组件。H. Install the remaining components.
- 根据权利要求2所述的安装方法，其特征在于，主机座和齿轮箱座分段制作时，通过拉直线测量主机座和齿轮箱座分段内底板胎架数据，保证分段内底板水平数据，主机座和齿轮箱座分段内底板水平偏差应控制在±5mm以内；The mounting method according to claim 2, wherein when the main base and the gear box seat are segmented, the data of the base frame of the base seat and the gear box seat are measured by pulling straight lines, and the horizontal data of the inner bottom plate of the segment is ensured. , the horizontal deviation of the inner bottom plate of the main base and the gear box seat section should be controlled within ±5mm;主机座和齿轮箱座分段在总组完毕后，复测主机座和齿轮箱座总段水平数据，偏差超过10mm时调整。After the main assembly and the gear box seat segment are completed, the horizontal data of the main frame and the gear box base are retested, and the deviation is adjusted when the deviation exceeds 10 mm.
- 根据权利要求1～3任一项所述的安装方法，其特征在于，步骤10)中的焊接工艺为：按照先立角焊，再平角焊缝，从中间往两边对接施焊的原则进行焊接。 The mounting method according to any one of claims 1 to 3, characterized in that the welding process in the step 10) is: welding according to the principle of the first vertical butt welding and the flat fillet welding from the middle to the two sides. .
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| CN108974250B (en) * | 2018-06-15 | 2020-10-27 | 沪东中华造船(集团)有限公司 | Method for controlling positioning and mounting precision of special equipment base on block |
| CN109515612A (en) * | 2018-10-26 | 2019-03-26 | 中船西江造船有限公司 | The method for drawing block main engine bed hookup wire and shaft line is surveyed with total station |
| CN110525582A (en) * | 2019-07-23 | 2019-12-03 | 上海江南长兴造船有限责任公司 | One kind large-scale pedestal peculiar to vessel always organizes prepackage accuracy control method |
| CN110877655A (en) * | 2019-11-05 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Large-scale marine generator base of LNG |
| CN111591409B (en) * | 2020-05-19 | 2021-11-19 | 江苏新扬子造船有限公司 | Process method for improving forward reverse propelling precision of construction process |
| CN112357006A (en) * | 2020-11-19 | 2021-02-12 | 江南造船(集团)有限责任公司 | Installation method of main compass |
| CN112357007A (en) * | 2020-11-19 | 2021-02-12 | 江南造船(集团)有限责任公司 | Installation method of electromagnetic compass measuring unit |
| CN114701619B (en) * | 2022-03-10 | 2023-06-16 | 江南造船(集团)有限责任公司 | Main machine positioning and installing method based on total section construction |
| CN115009463B (en) * | 2022-04-27 | 2024-01-02 | 广州文冲船舶修造有限公司 | Marine host base replacement positioning process |
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