A method for carrying a large section of a ship's bow and stern line

Abstract

The present invention relates to a method for loading and operating a ship's main section with a large bow and stern line area. The main section refers to a main section with a large outer plate line, a high center of gravity from a baseline, and an outward float. When loading, the ship's main section is lifted from a main assembly platform to a dock by a crane, and the loading and support of the main section is completed by an ultra-high support. The ultra-high support includes a lower base and an upper support tube. The upper support tube also serves as a main section assembly support. After the main assembly is completed, it is hoisted to the loading position together with the main section structure and falls on the top of the support lower base. After the main section is safely in place through support parts and restraint welding, the crane is released. The use of combined supports in the loading method of the present invention achieves the requirements for the strength of the main section loading support, ensures safety in use, and increases the efficiency of composite use, thereby speeding up the ship positioning time, reducing the waste of crane resources, increasing the ship loading efficiency, and reducing the cost of ship construction.

Description

Technical Field

[0001] The invention relates to ship construction, and in particular to a method for mounting and operating a total section with a relatively large bow and stern line area of ​​a ship. Background Art

[0002] At present, in shipbuilding, when the main section with a large bow and stern line area is loaded in the dock, the support can ensure the safety of the ship loading. As the tonnage and container space of the ship type continue to develop towards large-scale, the support height continues to increase. The original support form and method have the following defects: the original support form is not strong and stable enough. If the large main section is loaded only by constrained welding, the safety cannot be guaranteed, and the use time of the gantry crane is greatly increased, resulting in a huge waste of manpower and material resources. If an integrated support tooling is used, the support body will inevitably be high, the center of gravity is high, and the tonnage is heavy, which is not conducive to the actual use on site and there are safety hazards. Due to the outward floating of the bow and stern structure line, when the main section is loaded in place, the support tooling is lifted by high lifting, and the crane will have a lifting blind spot. If a truck crane is used, the positioning time of the bow and stern main section is long and the workload of adjusting the support position is large, which will greatly waste the resources of the truck crane. Summary of the invention

[0003] The purpose of the present invention is to improve the shortcomings of the above-mentioned existing process methods and provide a method for loading and operating a total section with a larger bow and stern line shape. By using the method for loading and operating a total section with a larger bow and stern line shape of the present invention, the strength requirements of the total section loading support are achieved, the safety of use is ensured, and the composite use efficiency is increased through the use of a new type of combined support, thereby speeding up the ship positioning time, reducing the waste of crane resources, increasing the ship loading efficiency, and reducing the ship construction cost.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0005] A method for loading and operating a ship's main section with a relatively large bow and stern line area, wherein the ship's main section mainly refers to a main section with a large outer plate line, a high center of gravity from a baseline and an outward drift; the loading refers to the whole process of lifting the ship's main section from a main assembly platform to a dock by a crane, and ensuring that the main section is safely in place by supporting and restraining welding and other methods, and then releasing the hook of the crane; the super-high support comprises a lower base and an upper support pipe, and the upper support pipe also serves as a main section assembly support. After the main assembly is completed, it is hoisted to a loading position together with the main section structure and falls on the top of the support lower base. After the positioning of the main section is completed, the upper support pipe and the lower base are restrained and fixed by a large anti-tilt bracket.

[0006] The above support use method includes the following steps:

[0007] A method for loading a ship's main section with a large bow and stern line shape, wherein the main section refers to a main section with a large outer plate line shape, a high center of gravity from a baseline, and an outward drift. The method is characterized in that when loading, the ship's main section is hoisted from a main assembly platform to a dock by a crane, and the loading support of the main section is completed by an ultra-high support. The ultra-high support includes a lower base and an upper support pipe. The upper support pipe also serves as a main section assembly support. After the main assembly is completed, it is hoisted to a loading position together with the main section structure and falls on the top of the support lower base. After the main section is safely in place by supporting parts and restraint welding, the crane is released. The method for loading includes the following steps:

[0008] The first step is to place the assembly support on the assembly platform in advance before the assembly of the whole section. The assembly support adopts the form of a stabilizing frame support, and the bottom of the upper support pipe is fixed to the stabilizing frame through a small bracket;

[0009] The second step is to adjust the support into place after the segment positioning is completed, so that the top plate of the upper support pipe is close to the bottom plate of the support seat and connected by welding;

[0010] The third step is to use a crane to place the lower base in place in advance according to the positioning dimensions of the mounting support in the mounting support layout diagram of the whole section before loading the whole section.

[0011] Step 4: When loading the block, first open the welds between the upper support tube, the stabilizing frame and the small bracket, so that the upper support tube can be hoisted together with the block structure. The upper support tube falls on the top of the lower base. After positioning, the pre-prepared large bracket is used at the bottom of the upper support tube to constrain and fix it with the top plate of the lower base.

[0012] The fifth step is to remove the support from the outer plate first, lift the upper support tube with a crane, then open the connection weld between the upper support tube and the lower base, lift the upper support tube out, and finally, lift it off the lower base with a crane.

[0013] In the loading and operation method of a total section with a larger bow and stern line area of ​​a ship according to the present invention, the ultra-high support refers to a support tooling assembly with a height greater than 30 meters that needs to rely on a crane to adjust its position. The assembly includes a lower base and an upper support tube. The lower base is a tower column structure. The lower base has a fence and a step structure, which allows operators to climb to the top platform to perform operations.

[0014] In the method for mounting an overall section with a larger bow and stern line area of ​​a ship according to the present invention, the overall assembly stabilizer support form described in the first step is a regular quadrangular pyramid structure, which can be used after the upper support pipe is inserted, and its height is flexibly variable to meet the overall assembly support use requirements of different heights.

[0015] In the loading operation method of a ship bow and stern line larger area overall section of the present invention, the overall assembly centerline support form described in the first step, the upper support tube and the centerline are used in conjunction, the upper support tube can be separated from the centerline and flow to the rear channel to meet the loading support use requirements.

[0016] In the method for mounting a large area section of a bow and stern line of a ship of the present invention, in the third step, the lower base must be pre-placed in place according to the positioning size by a crane due to its excessive dead weight and high center of gravity.

[0017] In the method for mounting and operating a total section of a ship with a larger bow and stern line area of ​​the present invention, in the fourth step, the internal structure of the top end of the lower base, taking into account the position deviation between the upper support tube and the lower base, the back side frame of the upper top plate is designed to be a field-shaped frame.

[0018] In the method for mounting a bulk section with a large bow and stern line area of ​​a ship of the present invention, if the height of the upper support pipe does not match the mounting support height, the upper support pipe needs to be pre-corrected when the bulk section is mounted.

[0019] Compared with the prior art, the method for carrying a large area section of a ship's bow and stern line of the present invention has the following advantages:

[0020] 1. The patent of this invention adopts a combined support form, which increases the versatility of the support and can meet the support requirements of different heights by modifying the specifications of the upper support tube.

[0021] 2. In the present invention, the support tube is used in combination in the overall assembly stage and the loading stage, which improves the efficiency of the support.

[0022] 3. Taking into account the position deviation of the upper support tube when it is in place, the mounting method of the present invention designs the reverse side frame of the upper top plate supporting the lower base into a field-shaped frame form, so that the lower support base does not need to be fine-tuned after being embedded in place, thus saving a lot of time for total section positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall assembly of a larger area of ​​the bow and stern line of the ship of the present invention.

[0024] Figure 2 It is a schematic diagram of hoisting a larger area of ​​the bow and stern line of the ship of the present invention.

[0025] Figure 3 It is a schematic diagram of the completion of the overall installation of a larger area of ​​the bow and stern line of the ship of the present invention.

[0026] Figure 4 yes Figure 3 Magnified view of the AA site in the image.

[0027] Figure 5 yes Figure 4 Schematic diagram of the BB direction.

[0028] in,

[0029] 1—General section structure 2—Support seat 3—Upper support pipe 4—Stabilizer 5—Small bracket

[0030] 6—support lower base 7—large toggle plate. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the loading operation method of a ship bow and stern line larger area total section of the present invention in conjunction with the accompanying drawings, so as to more clearly understand the application process of the method of the present invention, but this cannot be used to limit the protection scope of the present invention.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, as the operation process of the ship section equipped with super-high support, the super-high support here refers to a support tooling assembly with a height greater than 30 meters, which needs to rely on a crane to adjust its position. It consists of a lower base and an upper support pipe. The lower base is a tower column structure with a fence and a step structure for operators to climb to the top platform for operations.

[0033] The method of the present invention mainly comprises the following detailed steps:

[0034] The first step is that before the assembly of the total section structure 1, the total assembly support is placed in advance on the assembly platform according to the total section fetal position layout diagram. The total assembly support is a combination of a stabilizer frame 4 and an upper support tube 3, and the bottom of the upper support tube 3 is fixed to the bottom plate of the stabilizer frame 4 by a small elbow plate 5. In this step, the total assembly stabilizer support form is a regular tetrahedral structure, and the upper support tube can be inserted and used. Its height is flexible and variable to meet the use requirements of the total assembly support of different heights. The total assembly stabilizer support form is that the upper support tube and the stabilizer frame are used in combination, and the upper support tube can be separated from the stabilizer frame and flowed to the back channel to meet the use requirements of the carrying support.

[0035] In the second step, after the segment positioning of the overall segment structure 1 is completed, the upper support tube 3 is adjusted into place, the top plate of the upper support tube 3 is pressed against the bottom plate of the support seat 2, and then connected by welding.

[0036] The third step is to place the support lower base 6 in place in advance by a crane before loading the overall section structure 1 according to the positioning dimensions of the loading support in the overall section loading support layout diagram; the lower base must be placed in place in advance by a crane according to the positioning dimensions due to its excessive deadweight and high center of gravity.

[0037] Step 4: Before the assembly structure 1 is hoisted, the welds between the upper support tube 3, the bottom plate of the stabilizer frame 4 and the small bracket 5 are opened. The internal structure of the top of the lower base, taking into account the position deviation between the upper support tube and the lower base, the back frame of the upper top plate is designed in the form of a field-shaped frame, such as Figure 5 shown.

[0038] Step 5: When the overall section structure 1 is loaded, the upper support pipe 3 is hoisted together with the overall section structure 1, and the upper support pipe 3 falls on the top plate of the lower base 6. After positioning, the upper support pipe 3 is fixed to the top plate of the lower base 6 by using the pre-prepared large bracket 7 at the bottom. Figure 4 shown.

[0039] Step 6. When dismantling the support, first cut off the support seat 2 as a whole from the outer plate, lift the upper support tube 3 with a crane, then open the connecting weld between the upper support tube 3 and the lower base 6, lift out the upper support tube 3, and finally lift it off the lower base 6 with a crane.

[0040] In the method for mounting a bulk section with a large bow and stern line area of ​​a ship of the present invention, if the height of the upper support pipe does not match the mounting support height, the upper support pipe needs to be pre-corrected when the bulk section is mounted.

[0041] The present invention discloses a method for mounting a bulk section in a larger area of ​​a ship's bow and stern line shape. By using a new type of combined support, the requirements for the strength of the bulk section mounting support are met, the safety of use is ensured, and the composite use efficiency is increased, thereby speeding up the ship positioning time, reducing the waste of crane resources, increasing the ship mounting efficiency, and reducing the ship construction cost.

[0042] The above describes the specific embodiments of the present invention, but those skilled in the art should understand that these are only examples, and various changes or modifications can be made to these embodiments without departing from the principles and essence of the present invention. The above embodiments are only illustrative of the technical principles and effects of the present invention, and are not intended to limit the protection of the rights of the present invention.

Claims

1. A method for loading a ship's bow and stern section with a large linear area, wherein the section refers to a section with a large outer plate linear area, a high center of gravity distance from the baseline, and an outward drift, characterized in that: During loading, the ship block is lifted from the assembly platform to the dock by a crane, and the loading support of the block is completed by super-high support. The super-high support includes a lower base and an upper support pipe. The upper support pipe also serves as the block assembly support. After the assembly is completed, it is hoisted to the loading position together with the block structure and falls on the top of the support lower base. After the block is safely in place through support parts and restraint welding, the crane is released. The loading operation method includes the following steps: The first step is to place the assembly support on the assembly platform in advance before the assembly of the whole section. The assembly support adopts the form of a stabilizing frame support. The upper support pipe and the stabilizing frame are used together. The bottom of the upper support pipe is fixed to the stabilizing frame through a small bracket, and the upper support pipe can be separated from the stabilizing frame and flow to the back road; The stabilizing frame is a regular quadrangular pyramid structure, and can be used after the upper support pipe is inserted. Its height can be changed with the insertion depth to meet the requirements of the overall assembly support of different heights; The second step is to adjust the support into place after the segment positioning is completed, so that the top plate of the upper support pipe is close to the bottom plate of the support seat and connected by welding; The third step is to use a crane to place the lower base in place in advance according to the positioning dimensions of the mounting support in the mounting support layout diagram of the whole section before loading the whole section. Step 4: When loading the block, first open the welds between the upper support tube, the stabilizing frame and the small bracket, so that the upper support tube can be hoisted together with the block structure. The upper support tube falls on the top of the lower base. After positioning, the pre-prepared large bracket is used at the bottom of the upper support tube to constrain and fix it with the top plate of the lower base. If there is a position deviation between the upper support tube and the lower base, the internal structure at the top of the lower base should be designed, that is, the back frame of the upper top plate should be designed into a field-shaped frame; The fifth step is to remove the support from the outer plate first, lift the upper support tube with a crane, then open the connection weld between the upper support tube and the lower base, lift the upper support tube out, and finally, lift it off the lower base with a crane.

2. The method for loading and operating a large-area section of a ship's bow and stern line according to claim 1, characterized in that: The super-high support refers to a support tooling assembly with a height greater than 30 meters that requires a crane to adjust its position. It consists of a lower base and an upper support tube. The lower base is a tower column structure with a fence and step structure, and is also provided with a top platform for workers to climb up to work.

3. The method for loading and operating a large-area section of a ship's bow and stern line according to claim 1, characterized in that: In the third step, the lower base is pre-placed in place according to the positioning size using a crane.

4. The method for loading and operating a large-area section of a ship's bow and stern line according to claim 1, characterized in that: If the height of the upper support tube does not match the mounting support height, the upper support tube shall be pre-corrected when the overall section is mounted.

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