A method of installing a ship roll-on / roll-off platform

Abstract

The application discloses a kind of ship overturning connection platform installation method, it includes the following steps: S1: providing connection platform and multiple extension ear plates, each pin shaft area of connection platform is equipped with first pin hole, make the concentricity of each first pin hole consistent;S2: on each extension ear plate on ground, second shaft hole matched with pin shaft shape is opened;Step S3: preliminary connection of pin shaft area and extension ear plate is completed on ground;S4: the concentricity of each first pin hole is rechecked, after determining the concentricity of each first pin hole is consistent, make the installation angle of each extension ear plate consistent;Using channel steel realizes the fixation of pin shaft area and extension ear plate;S5: the connection platform with extension ear plate is hoisted as a whole;S6: all extension ear plates are sequentially inserted into the preset hole of ship body outer plate, and are fixed by welding.The boring operation of extension ear plate and the shafting operation of extension ear plate and connection platform can be completed on ground stage, and the construction safety performance is high, and the construction efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method for installing a ship overturning and docking platform. Background Technology

[0002] The ship docking platform is connected to three protruding lugs on the hull by pins, and the docking device is opened and closed by a winch. The current docking platform installation and positioning process is as follows: (1) initial positioning of the protruding lugs; (2) welding of the protruding lugs; (3) boring of the protruding lugs to ensure the concentricity of the three protruding lugs; (4) hoisting of the docking platform; (5) connection and fixation of the protruding lugs of the docking platform through the pins. However, the above process has the following defects: (1) boring of the protruding lugs is a high-altitude operation, which poses a construction safety hazard; (2) after the docking platform is hoisted to the corresponding position, an additional crane is needed to hoist the pins, which is complicated and not conducive to operation. At the same time, the docking platform has a certain hoisting deformation after hoisting. Even if the concentricity of the protruding lugs is qualified, it is still difficult to perform the pin-connection operation between the docking platform and the protruding lugs. Summary of the Invention

[0003] The purpose of this invention is to provide a method for installing a ship overturning and docking platform, which not only enables the boring operation of the protruding lugs to be completed on the ground, avoiding high-altitude operations and thus improving construction safety, but also enables the shaft insertion operation between the protruding lugs and the docking platform to be completed on the ground, avoiding the problem of shaft insertion difficulties caused by deformation of the docking platform during hoisting, thereby improving construction efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A method for installing a ship capsizing and docking platform includes the following steps:

[0006] Step S1: Provide a docking platform and multiple extended ear plates. The docking platform is provided with multiple pin areas corresponding to the number of extended ear plates. Each pin area is provided with a first pin hole, so that the concentricity of each first pin hole is consistent.

[0007] Step S2: On the ground, make a second pin hole for each of the protruding ear plates that matches the shape of the pin shaft;

[0008] Step S3: On the ground, pass the pin through the first pin hole and the second pin hole in sequence to complete the initial connection between one of the pin areas and the protruding ear plate; repeat the above operation until the initial connection between all the pin areas and the protruding ear plate is completed;

[0009] Step S4: Re-measure the concentricity of each first pin hole. After confirming that the concentricity of each first pin hole is consistent, make the installation angle of each protruding ear plate consistent. A channel steel is provided in the pin shaft area. One end of the channel steel is welded to the bottom of the protruding ear plate, and the other end of the channel steel is connected to the bottom of the pin shaft area until the pin shaft area and the protruding ear plate are fixed.

[0010] Step S5: Use a crane to hoist the entire docking platform with the extended lugs;

[0011] Step S6: Insert all the protruding ear plates into the preset holes of the hull plate in sequence, and weld them in place.

[0012] As a preferred embodiment of the present invention, in step S1, the method for ensuring the concentricity of each of the first pin holes is as follows: draw an opening crosshair in one of the pin shaft areas according to the theoretical data of the opening, and mark the first piercing point; use a total station to measure the three-dimensional coordinates of the center value of the first pin hole in the pin shaft area; then, based on the three-dimensional coordinates of the center value of the first pin hole, draw an opening crosshair in the remaining pin shaft areas using a total station, and mark the first piercing point, to determine the three-dimensional coordinates of the center value of the first pin hole in the remaining pin shaft areas.

[0013] As a preferred embodiment of the present invention, in step S4, the method for making the installation angle of each of the protruding ear plates the same is as follows: draw protruding ear plate cross lines on all the protruding ear plates and mark the second punch point. The distance between the center point of each protruding ear plate cross line and the side of the corresponding protruding ear plate is the same, and the distance between the center point of each protruding ear plate cross line and the bottom of the corresponding protruding ear plate is the same. The center coordinates of each protruding ear plate cross line are measured by a total station, and fine-tuned by an angle adjustment mechanism to make the center coordinates of each protruding ear plate cross line consistent. Then, the protruding ear plates are fixed to the pin area using channel steel.

[0014] As a preferred embodiment of the present invention, the angle adjustment mechanism includes a high stool and an oil top, the oil top being movably mounted on the high stool, the top of the oil top abutting against the bottom of the protruding ear plate.

[0015] As a preferred embodiment of the present invention, in step S1, the concentricity tolerance of each of the first pin holes is ±1mm.

[0016] As a preferred embodiment of the present invention, in step S2, the roundness tolerance of each of the second pin holes is ±1mm.

[0017] As a preferred embodiment of the present invention, in step S4, after re-measuring the concentricity of the first pin hole, the concentricity tolerance of the first pin hole is ±1mm.

[0018] As a preferred embodiment of the present invention, the number of both the protruding ear plate and the pin area is three.

[0019] The advantages of implementing the ship capsizing and docking platform installation method provided by this invention compared with the prior art are as follows:

[0020] This invention not only enables the boring of the protruding ear plate to be completed on the ground, avoiding high-altitude operations and thus improving construction safety, but also enables the pin insertion operation between the protruding ear plate and the connecting platform to be completed on the ground, without the need for additional cranes to lift the pins. This simplifies the process, makes operation easier, and avoids the problem of pin insertion difficulties caused by deformation of the connecting platform during lifting, thereby improving construction efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] Figure 1 This is a top view of the docking platform;

[0023] Figure 2 This is a structural diagram of the pin shaft area in the docking platform;

[0024] Figure 3 This is a schematic diagram of the extended ear plate structure;

[0025] Figure 4 This is a schematic diagram of the docking platform and the extended lugs for shaft insertion operations during the ground phase;

[0026] Figure 5 This is a schematic diagram showing how channel steel is used to fix the protruding ear plates and the docking platform;

[0027] Figure 6 This is a schematic diagram of using a crane to hoist the entire docking platform with protruding lugs to the hull plating of the ship.

[0028] Marked in the image:

[0029] 100 connecting platform; 101 pin shaft area; 102 first pin hole; 103 opening cross line; 104 first ocean punch point; 200 extended ear plate; 201 second pin hole; 202 extended ear plate cross line; 203 second ocean punch point; 300 pin shaft; 400 channel steel; 500 angle adjustment mechanism; 501 high stool; 502 oil cap; 600 hull plate. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0032] Please see Figures 1 to 6 A preferred embodiment of the present invention provides a method for installing a ship overturning and docking platform, which includes the following steps:

[0033] Step S1: Provide a connecting platform 100 and multiple protruding ear plates 200. The connecting platform 100 has multiple pin regions 101 corresponding to the number of protruding ear plates 200. Each pin region 101 has a first pin hole 102, ensuring that the concentricity of each first pin hole 102 is consistent. In this step, there are three protruding ear plates 200 and three pin regions 101; the concentricity tolerance of each first pin hole 102 is ±1mm.

[0034] Step S2: A second pin hole 201 matching the shape of the pin is made in each of the protruding ear plates 200 on the ground. In this step, the roundness tolerance of each second pin hole 201 is ±1mm.

[0035] Step S3: On the ground, pass the pin 300 through the first pin hole 102 and the second pin hole 201 in sequence to complete the initial connection between one of the pin areas 101 and the protruding ear plate 200; repeat the above operation until the initial connection between all the pin areas 101 and the protruding ear plate 200 is completed.

[0036] Step S4: Re-measure the concentricity of each of the first pin holes 102. After confirming that the concentricity of each of the first pin holes 102 is consistent, ensure that the installation angle of each protruding ear plate 200 is consistent. A channel steel 400 is provided at the pin shaft area 101. One end of the channel steel 400 is welded to the bottom of the protruding ear plate 200, and the other end of the channel steel 400 is connected to the bottom of the pin shaft area 101 until the pin shaft area 101 and the protruding ear plate 200 are fixed. In this step, after re-measuring the concentricity of the first pin holes 102, the concentricity tolerance of the first pin holes 102 is ±1mm.

[0037] Step S5: Use a crane to hoist the entire docking platform 100 with the extended ear plate 200.

[0038] Step S6: Insert all the protruding ear plates 200 into the preset holes of the hull hull plate 600 in sequence, and weld them in place.

[0039] The ship overturning and docking platform installation method of the present invention can not only complete the boring operation of the protruding ear plate 200 on the ground, avoiding high-altitude operations and thus improving construction safety, but also complete the shaft insertion operation between the protruding ear plate 200 and the docking platform 100 on the ground, without the need to use an additional crane to lift the pin 300, which simplifies the process, is more conducive to operation, and avoids the problem of shaft insertion difficulty caused by deformation of the docking platform 100 during lifting, thereby improving construction efficiency.

[0040] For example, in step S1, to improve installation accuracy and ensure that the concentricity of each of the first pin holes 102 is consistent, the following method is used: A crosshair 103 is drawn in one of the pin shaft areas 101 according to the theoretical data of the opening, and a first punch point 104 is marked. The three-dimensional coordinates of the center value of the first pin hole 102 in the pin shaft area 101 are measured using a total station. Then, based on the three-dimensional coordinates of the center value of the first pin hole 102, a crosshair 103 is drawn in the remaining pin shaft areas 101 using a total station, and a first punch point 104 is marked, thereby determining the three-dimensional coordinates of the center value of the first pin hole 102 in the remaining pin shaft areas 101.

[0041] For example, in step S4, to improve the installation accuracy of the protruding ear plates 200 and make the installation angles of each protruding ear plate 200 the same, the following method is used: A crosshair 202 is drawn on all the protruding ear plates 200, and a second punch 203 is marked. The distance between the center point of each crosshair 202 and the side of its corresponding protruding ear plate 200 is consistent, and the distance between the center point of each crosshair 202 and the bottom of its corresponding protruding ear plate 200 is consistent. The center coordinates of each crosshair 202 are measured using a total station, and fine-tuned using an angle adjustment mechanism 500. After the center coordinates of each crosshair 202 are consistent, the protruding ear plates 200 are fixed to the pin area 101 using a channel steel 400. In this embodiment, the angle adjustment mechanism 500 includes a high stool 501 and an oil cap 502. The oil cap 502 is movably mounted on the high stool 501, and the top of the oil cap 502 abuts against the bottom of the protruding ear plate 200. Thus, when the oil cap 502 moves up and down, it can drive the protruding ear plate 200 to rotate, thereby fine-tuning the installation angle of the protruding ear plate 200.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A method for installing a ship tilting and docking platform, characterized in that, Includes the following steps: Step S1: Provide a connecting platform and multiple protruding lugs. The connecting platform has multiple pin regions corresponding to the number of protruding lugs. Each pin region has a first pin hole, ensuring that the concentricity of each first pin hole is consistent. The method for ensuring the concentricity of each first pin hole is as follows: draw an opening crosshair in one of the pin regions according to the theoretical data of the opening, and mark the first piercing point. Use a total station to measure the three-dimensional coordinates of the center value of the first pin hole in the pin region. Then, based on the three-dimensional coordinates of the center value of the first pin hole, draw an opening crosshair in the remaining pin regions using a total station, and mark the first piercing point to determine the three-dimensional coordinates of the center value of the first pin hole in the remaining pin regions. Step S2: On the ground, make a second pin hole for each of the protruding ear plates that matches the shape of the pin shaft; Step S3: On the ground, pass the pin through the first pin hole and the second pin hole in sequence to complete the initial connection between one of the pin areas and the protruding ear plate; repeat the above operation until the initial connection between all the pin areas and the protruding ear plate is completed; Step S4: Re-measure the concentricity of each of the first pin holes. After confirming that the concentricity of each of the first pin holes is consistent, make the installation angle of each protruding ear plate consistent. A channel steel is provided at the pin shaft area. One end of the channel steel is welded to the bottom of the protruding ear plate, and the other end of the channel steel is connected to the bottom of the pin shaft area until the pin shaft area and the protruding ear plate are fixed. The method to make the installation angle of each protruding ear plate the same is as follows: draw the protruding ear plate cross lines on all the protruding ear plates and mark the second punch point. The distance between the center point of each protruding ear plate cross line and the side of the corresponding protruding ear plate is consistent. The distance between the center point of each protruding ear plate cross line and the bottom of the corresponding protruding ear plate is consistent. Measure the center coordinates of each protruding ear plate cross line using a total station. Make fine adjustments using an angle adjustment mechanism to make the center coordinates of each protruding ear plate cross line consistent. Then use the channel steel to fix the protruding ear plate and the pin shaft area. Step S5: Use a crane to hoist the entire docking platform with the extended lugs; Step S6: Insert all the protruding ear plates into the preset holes of the hull plate in sequence, and weld them in place.

2. The method for installing a ship overturning and docking platform according to claim 1, characterized in that, The angle adjustment mechanism includes a high stool and an oil top, the oil top being movable up and down on the high stool, the top of the oil top abutting against the bottom of the protruding ear plate.

3. The method for installing a ship overturning and docking platform according to claim 1, characterized in that, In step S1, the concentricity tolerance of each of the first pin holes is ±1mm.

4. The method for installing a ship overturning and docking platform according to claim 1, characterized in that, In step S2, the roundness tolerance of each of the second pin holes is ±1mm.

5. The method for installing a ship overturning and docking platform according to claim 1, characterized in that, In step S4, after re-measuring the concentricity of the first pin hole, the concentricity tolerance of the first pin hole is ±1mm.

6. The method for installing a ship overturning and docking platform according to claim 1, characterized in that, The number of the protruding ear plate and the pin area are both three.

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