Installation method of ship overturning connection platform

Abstract

The invention discloses a ship overturning connection platform installation method which comprises the following steps that S1, a connection platform and a plurality of extending lug plates are provided, first pin holes are formed in all pin shaft areas of the connection platform, and the concentricity of all the first pin holes is consistent; s2, second shaft holes matched with the pin shafts in shape are formed in the extending lug plates on the ground; s3, primary connection of the pin shaft area and the extending lug plate is completed on the ground; s4, the concentricity of all the first pin holes is measured again, and after it is determined that the concentricity of all the first pin holes is consistent, the installation angles of all the extending lug plates are consistent; the pin shaft area and the extending lug plate are fixed through the channel steel; s5, the connection platform with the extending lug plates is integrally hoisted; and S6, all the extending lug plates are sequentially inserted into preset holes of the hull outer plate and are welded and fixed. The boring operation of the extending lug plate and the shaft penetrating operation of the extending lug plate and the connection platform can be completed on the ground stage, the construction safety performance is high, and the construction efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of ship construction, and in particular to a method for installing a ship turnover docking platform. Background Art

[0002] The docking platform is connected to the three protruding lugs on the hull outer plate through a pin shaft, and the docking device is opened and closed by pulling and releasing with a winch. The current installation and positioning process of the docking platform 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 the docking platform; (5) Connecting and fixing the protruding lugs of the docking platform through the pin shaft. 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 required to hoist the pin shaft, which is cumbersome and not conducive to operation. At the same time, the docking platform will have a certain degree of hoisting deformation after hoisting. Even if the concentricity of the protruding lugs is qualified, it is still difficult to thread the pin shaft between the docking platform and the protruding lugs. Summary of the Invention

[0003] The object of the present invention is to provide a method for installing a ship flip docking platform, which can not only complete the boring operation of the extended ear plate on the ground stage, avoiding high-altitude operations, thereby improving construction safety performance; it can also complete the shaft threading operation between the extended ear plate and the docking platform on the ground stage, avoiding the problem of shaft threading difficulties caused by the deformation of the docking platform during lifting, thereby improving construction efficiency.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A method for installing a ship turnover docking platform comprises the following steps:

[0006] Step S1: providing a docking platform and a plurality of protruding lugs, wherein the docking platform is provided with a plurality of pin regions corresponding to the number of the protruding lugs, and each of the pin regions is provided with a first pin hole, so that the concentricity of each of the first pin holes is consistent;

[0007] Step S2: forming a second pin hole on the ground for each of the protruding ear plates, the second pin hole matching the shape of the pin shaft;

[0008] Step S3: Passing the pin through the first pin hole and the second pin hole in sequence on the ground to complete the preliminary connection between one of the pin areas and the extended lug plate; repeating the above operation until the preliminary connection between all the pin areas and the extended lug plates is completed;

[0009] Step S4: re-measure the concentricity of each first pin hole, and after confirming that the concentricity of each first pin hole is consistent, make the installation angle of each extended ear plate consistent; provide a channel steel at the pin shaft area, weld one end of the channel steel to the bottom of the extended ear plate, and connect the other end of the channel steel to the bottom of the pin shaft area until the pin shaft area and the extended ear plate are fixed;

[0010] Step S5: hoisting the docking platform with the extended lugs as a whole using a crane;

[0011] Step S6: inserting all the protruding lugs into the preset holes of the hull outer plate in sequence and fixing them by welding.

[0012] As a preferred embodiment of the present invention, in step S1, the concentricity of each of the first pin holes is made consistent as follows: a hole cross line is drawn in one of the pin shaft areas according to the hole opening theoretical data, and a first punch point is marked, and the three-dimensional coordinates of the center value of the first pin hole in the pin shaft area are measured using a total station; then, based on the three-dimensional coordinates of the center value of the first pin hole, a hole cross line is drawn in the remaining pin shaft areas using a total station, and a first punch point is marked to determine the three-dimensional coordinates of the center value of the first pin holes in the remaining pin shaft areas.

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

[0014] As a preferred solution of the present invention, the angle adjustment mechanism includes a high stool and an oil top. The oil top is mounted on the high stool so as to be movable up and down, and the top of the oil top abuts against the bottom of the protruding ear plate.

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

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

[0017] As a preferred solution 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 ±1 mm.

[0018] As a preferred solution of the present invention, there are three protruding ear plates and three pin shaft areas.

[0019] The beneficial effects of the ship flip docking platform installation method provided by the present invention compared with the prior art are as follows:

[0020] The present invention can not only complete the boring operation of the extended ear plate at the ground stage, avoiding high-altitude operation, thereby improving construction safety performance; it can also complete the shaft threading operation of the extended ear plate and the docking platform at the ground stage, without the need to use an additional crane to lift the pin shaft, which can simplify the process flow, is more conducive to operation, and avoids the problem of difficulty in shaft threading caused by the deformation of the docking platform during lifting, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

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

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

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

[0025] Figure 4 This is a schematic diagram of the axle threading operation of the docking platform and the extended lug during the ground stage;

[0026] Figure 5 This is a schematic diagram of using channel steel to fix the extended ear plate and the docking platform;

[0027] Figure 6 This is a schematic diagram showing how a docking platform with extended lugs is hoisted integrally to the hull's outer plating using a crane.

[0028] Markings in the figure:

[0029] Docking platform 100; pin area 101; first pin hole 102; opening cross line 103; first impact point 104; extended ear plate 200; second pin hole 201; extended ear plate cross line 202; second impact point 203; pin 300; channel steel 400; angle adjustment mechanism 500; high stool 501; oil top 502; hull outer plate 600. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such 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 the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

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

[0033] Step S1: Provide a docking platform 100 and multiple extended lugs 200. The docking platform 100 is equipped with a number of pin regions 101 corresponding to the number of extended lugs 200. Each pin region 101 is provided with a first pin hole 102, ensuring that the concentricity of each first pin hole 102 is consistent. In this step, there are three extended lugs 200 and three pin regions 101. The concentricity tolerance of each first pin hole 102 is ±1 mm.

[0034] Step S2: A second pin hole 201 matching the shape of the pin shaft is opened on the ground for each of the protruding lugs 200. In this step, the roundness tolerance of each of the second pin holes 201 is ±1 mm.

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

[0036] Step S4: Re-measure the concentricity of each first pin hole 102. After confirming that the concentricity of each first pin hole 102 is consistent, the installation angle of each extended lug plate 200 is aligned. A channel steel 400 is installed in the pin area 101. One end of the channel steel 400 is welded to the bottom of the extended lug plate 200, and the other end of the channel steel 400 is connected to the bottom of the pin area 101 until the pin area 101 and the extended lug plate 200 are fixed. In this step, after re-measurement of the concentricity of the first pin holes 102, the concentricity tolerance of the first pin holes 102 is ±1 mm.

[0037] Step S5: hoisting the docking platform 100 with the protruding lugs 200 as a whole using a crane.

[0038] Step S6: insert all the protruding lugs 200 into the preset holes of the hull outer plate 600 in sequence and fix them by welding.

[0039] The implementation of the ship flip docking platform installation method of the present invention can not only complete the boring operation of the extended ear plate 200 on the ground stage, avoiding high-altitude operations, thereby improving construction safety performance; it can also complete the shaft threading operation between the extended ear plate 200 and the docking platform 100 on the ground stage, without the need to use an additional crane to lift the pin shaft 300, which can simplify the process flow, is more conducive to operation, and avoids the problem of shaft threading difficulties caused by the deformation of the docking platform 100 during lifting, thereby improving construction efficiency.

[0040] Exemplarily, in step S1, in order to improve the installation accuracy and make the concentricity of each first pin hole 102 consistent, the method is: one of the pin shaft areas 101 is marked with a hole cross line 103 according to the hole opening theoretical data, and a first punch point 104 is marked, and 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, according to the three-dimensional coordinates of the center value of the first pin hole 102, the total station is used to mark the hole cross lines 103 in the remaining pin shaft areas 101, and the first punch point 104 is marked to determine the three-dimensional coordinates of the center value of the first pin hole 102 in the remaining pin shaft areas 101.

[0041] Exemplarily, in step S4, in order to improve the installation accuracy of the protruding ear plate 200, the installation angle of each protruding ear plate 200 is made the same as follows: a protruding ear plate cross line 202 is drawn on all the protruding ear plates 200, and a second punch point 203 is marked, the distance between the center point of each protruding ear plate cross line 202 and the side of the corresponding protruding ear plate 200 is consistent, and the distance between the center point of each protruding ear plate cross line 202 and the bottom of the corresponding protruding ear plate 200 is consistent, the center coordinates of each protruding ear plate cross line 202 are measured respectively by a total station, and fine-tuned by the angle adjustment mechanism 500 to make the center coordinates of each protruding ear plate cross line 202 consistent, and then the protruding ear plate 200 is fixed to the pin shaft area 101 using the channel steel 400. In this embodiment, the angle adjustment mechanism 500 includes a high stool 501 and an oil top 502. The oil top 502 is installed on the high stool 501 so as to be movable up and down. The top of the oil top 502 is against the bottom of the protruding ear plate 200. Therefore, when the oil top 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 the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for installing a ship turnover docking platform, characterized in that: The steps include: Step S1: providing a docking platform and a plurality of protruding lugs, wherein the docking platform is provided with a plurality of pin regions corresponding to the number of the protruding lugs, and each of the pin regions is provided with a first pin hole, so that the concentricity of each of the first pin holes is consistent; Step S2: forming a second pin hole on the ground for each of the protruding ear plates, the second pin hole matching the shape of the pin shaft; Step S3: Passing the pin through the first pin hole and the second pin hole in sequence on the ground to complete the preliminary connection between one of the pin areas and the extended lug plate; repeating the above operation until the preliminary connection between all the pin areas and the extended lug plates is completed; Step S4: re-measure the concentricity of each first pin hole, and after confirming that the concentricity of each first pin hole is consistent, make the installation angle of each extended ear plate consistent; provide a channel steel at the pin shaft area, weld one end of the channel steel to the bottom of the extended ear plate, and connect the other end of the channel steel to the bottom of the pin shaft area until the pin shaft area and the extended ear plate are fixed; Step S5: hoisting the docking platform with the extended lugs as a whole using a crane; Step S6: inserting all the protruding lugs into the preset holes of the hull outer plate in sequence and fixing them by welding.

2. The method for installing a ship turnover docking platform according to claim 1, characterized in that: In step S1, the concentricity of each first pin hole is made consistent by: marking a hole cross line in one of the pin shaft areas according to the hole opening theoretical data, and marking a first punch point, and using 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, using a total station to draw a hole cross line in the remaining pin shaft areas, and marking a first punch point, to determine the three-dimensional coordinates of the center value of the first pin holes in the remaining pin shaft areas.

3. The method for installing a ship turnover docking platform according to claim 1, characterized in that: In step S4, the installation angles of the protruding ear plates are made the same as follows: cross lines of the protruding ear plates are drawn on all the protruding ear plates, and a second punch point is marked. The center point of the cross line of each protruding ear plate is consistent with the distance between the side of the corresponding protruding ear plate, and the center point of the cross line of each protruding ear plate is consistent with the distance between the bottom of the corresponding protruding ear plate. The center coordinates of the cross lines of each protruding ear plate are measured separately by a total station, and fine-tuned by an angle adjustment mechanism to make the center coordinates of the cross lines of each protruding ear plate consistent. Then, the protruding ear plate is fixed to the pin shaft area using a channel steel.

4. The method for installing a ship turnover docking platform according to claim 3, characterized in that: The angle adjustment mechanism includes a high stool and an oil top. The oil top is mounted on the high stool so as to be movable up and down. The top of the oil top abuts against the bottom of the protruding ear plate.

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

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

7. The method for installing a ship turnover 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 ±1 mm.

8. The method for installing a ship turnover docking platform according to claim 1, characterized in that: There are three protruding ear plates and three pin shaft areas.

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