PCTC floating and pier falling positioning device and using method thereof

Abstract

The invention provides a PCTC floating and pier falling positioning device and a using method thereof, and relates to the technical field of shipbuilding, the positioning device comprises two positioning frames, the two positioning frames are installed on the same side of a dock platform, the two positioning frames are located at the bow position and the stern position of a parallel middle body of a ship body respectively, and the two positioning frames are installed on the same side of the dock platform. The positioning frame is fixedly installed on a dock bottom plate through fixing parts, a plurality of working platforms are arranged on the positioning frame, adjusting parts are installed on the working platforms and used for conducting pressure of the ship body, fender rubber is fixedly installed on the sides, away from the adjusting parts, of the working platforms, and the adjusting parts are used for adjusting the pressure of the ship body. A large number of stand columns do not need to be welded to the ship body for positioning work, under the action of the positioning frame and the mooring rope, the ship body is subjected to floating and pier falling positioning, the ship building efficiency is improved, the workload of workers is reduced, and resource waste is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a PCTC floating and landing pier positioning device and a use method thereof. Background Art

[0002] The PCTC hull structure is complex, and extremely high precision must be maintained during the construction process to ensure the smooth final assembly and the overall performance of the ship. The floating and landing positioning in the dock is an important link in the shipbuilding process. It helps to ensure the accurate position and posture of each part of the hull during the hull segment production, assembly and final assembly stages. Through precise floating and landing positioning, deformation, dislocation and other problems of the hull during the construction process can be avoided, thereby ensuring construction accuracy and quality control. At the same time, the positioning device can also provide a safe working environment for the staff. During the floating and landing process, the positioning device can ensure a smooth transition of the hull and reduce safety risks caused by shaking or tilting.

[0003] During the construction of the double-track PCTC, accurate floating and landing positioning is required. The traditional positioning method is to weld several columns on the ship, with guide rings on the outside of the columns. During the floating and landing process, the ship moves straight up and down under the action of the guide rings and columns. However, this method requires welding a large number of columns on the ship, which consumes a lot of time and energy, increases the workload of workers, affects construction efficiency, and causes waste of resources. Summary of the invention

[0004] In order to solve the problems of the above-mentioned prior art, the embodiments of the present invention provide a PCTC floating and landing positioning device and a method for using the same. It is unnecessary to weld a large number of columns on the hull for positioning. Under the action of the positioning frame and the cable, the hull is positioned for floating and landing, thereby improving the efficiency of shipbuilding, reducing the workload of workers, and avoiding waste of resources.

[0005] The object of the present invention can be achieved through the following technical solutions: a PCTC floating pier positioning device, comprising two positioning frames, the two positioning frames are installed on the same side of the dock platform, the two positioning frames are respectively located at the bow and stern positions of the hull parallel to the midbody, the positioning frames are fixedly mounted on the dock bottom plate through fixing components, a plurality of working platforms are arranged on the positioning frames, the working platforms are installed with adjusting components, the adjusting components are used to conduct the pressure of the hull, and a fender rubber is fixedly mounted on the side of the working platform away from the adjusting components.

[0006] Preferably, the adjusting component comprises a top plate, a sleeve and a screw rod, the sleeve is fixedly mounted on the working platform, the screw rod is threadedly connected to the sleeve, and the top plate is fixedly mounted at both ends of the screw rod.

[0007] Preferably, the fixing component comprises a pad, the pad is fixedly mounted on the bottom of the positioning frame, and the pad is fixedly connected to the dock bottom plate.

[0008] Preferably, the fixing component comprises a horse plate, the top of the horse plate is fixedly connected to the positioning frame, and the bottom of the horse plate is fixedly connected to the dock bottom plate.

[0009] Preferably, four lifting horses are fixedly installed on the top of the positioning frame, and two of the lifting horses are fixedly installed on one side of the lower part of the positioning frame close to the hull.

[0010] Preferably, guardrails are fixedly installed around the working platform, a plurality of the working platforms are arranged up and down, and an escalator is installed between two adjacent working platforms.

[0011] Preferably, an escalator passage is provided at the bottom of the upper working platform, and a cover plate that flips upward is hinged at the top of the escalator passage.

[0012] Preferably, the dock platform and the positioning frame are connected via a bridge passage, and a step ladder is installed between the bridge passage and the working platform.

[0013] In addition, the present invention also provides a method for using a PCTC floating pier positioning device, comprising the following steps:

[0014] S1: First, perform JSA analysis, then select the installation position of the positioning frame, clean the relevant positions, and finally mark the position of the pad on the dock bottom plate;

[0015] S2: Use hooks to connect the lifting horses on the top and side of the positioning frame, use a crane to lift the positioning frame, then turn the positioning frame up and down 90 degrees, and slowly descend the crane to lower the positioning frame to the predetermined position of S1;

[0016] S3: Weld the pad or horse plate at the bottom of the positioning frame to the dock bottom plate, rotate the top plate to make it support the dock wall on the side of the dock platform, and finally build the bridge passage;

[0017] S4: After the ship is floated, the positioning frame cooperates with the dock cable to position the hull at the predetermined position. The outer plate of the hull contacts the fender rubber. During the dock drainage process, the hull slowly descends along the positioning device until it lands on the dock bottom plate.

[0018] S5: Perform JSA analysis first, move the top plate into the positioning frame, remove the bridge channel and positioning frame, and finally use a crane to lift out the positioning frame.

[0019] The beneficial effects brought by the present invention are as follows:

[0020] It can be seen from the above scheme that the embodiment of the present invention provides a PCTC floating pier positioning device and a method for using the same, which can quickly realize the installation and disassembly of the positioning frame. When the ship needs to be built, the positioning frame is built on the dock, and the positioning frame is welded to the dock bottom plate, thereby enhancing the stability of the positioning frame. In addition, a fender rubber is installed on the outside of the positioning frame to absorb the collision energy between the ship and the positioning frame to protect the ship and the positioning frame from damage. At the same time, the adjusting component on the positioning frame can extend its top plate outward to support the dock wall, and transmit the pressure transmitted by the ship to the positioning frame to the dock platform, thereby ensuring the stability of the ship construction and protecting the ship structure from damage. The supporting force of the dock platform can also be used to maintain the shape and dimensional accuracy of the hull, which is more convenient for the construction of the ship, and can also reduce the safety hazards caused by the shaking or displacement of the ship, thereby improving the safety during the operation. The setting of the bridge passage, the step ladder, the escalator and multiple working platforms makes it easier for workers to smoothly enter the positioning frame to build the ship, realize the double-line construction of the ship, improve the construction efficiency, and reduce the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram showing the structure of a PCTC floating landing pier positioning device according to Embodiment 1 of the present invention;

[0022] Figure 2 A front view showing a PCTC floating landing pier positioning device according to embodiment 1 of the present invention;

[0023] Figure 3 A side view showing a PCTC floating landing pier positioning device according to embodiment 1 of the present invention;

[0024] Figure 4 A schematic diagram showing a channel structure of a PCTC floating pier positioning device according to Embodiment 1 of the present invention;

[0025] Figure 5 A schematic diagram showing the structure of a PCTC floating pier positioning device during hoisting according to Embodiment 1 of the present invention;

[0026] Figure 6 A schematic diagram showing the structure of a PCTC floating pier positioning device flipped 90° during hoisting according to Embodiment 1 of the present invention;

[0027] Figure 7 express Figure 6 A partial enlarged view of part A;

[0028] Figure 8 A schematic diagram showing the structure of a two-layer working platform according to Embodiment 1 of the present invention;

[0029] Fig. 9 A structural schematic diagram showing the installation positions of two positioning frames according to Example 1 of the present invention.

[0030] In the figure, 1 is a positioning frame; 2 is a dock platform; 3 is a hull; 4 is a dock bottom plate; 5 is a working platform; 6 is an adjusting component; 61 is a top plate; 62 is a sleeve; 63 is a screw rod; 7 is a fender rubber; 8 is a pad; 9 is a horse board; 10 is a lifting horse; 11 is a guardrail; 12 is an escalator; 13 is a cover plate; 14 is a bridge passage; 15 is a step ladder; and 16 is a hook. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] like Figures 1 to 9 As shown, the PCTC floating and landing pier positioning device in this embodiment includes two positioning frames 1, both of which are rectangular structures welded by multiple H-shaped steels, and multiple cross-arranged channel steels are welded between the H-shaped steels to enhance the stability of the positioning frames 1. The two positioning frames 1 are installed on the same side of the dock platform 2, and the two positioning frames 1 are respectively located at the bow and stern positions of the hull 3 parallel to the middle body. The positioning frame 1 is fixedly installed on the dock bottom plate 4 through a fixing component, and a plurality of working platforms 5 are arranged on the positioning frame 1. The number of the working platforms 5 in this embodiment is two, and the two working platforms 5 are arranged up and down. The bottom of the upper working platform 1 is lower than the dock platform 2, and an adjusting component 6 is installed on the working platform 5. The adjusting component 6 is used to conduct the pressure of the hull 3 to ensure the stability of the ship construction and protect the ship structure from damage. A fender rubber 7 is fixedly installed on the side of the working platform 5 away from the adjusting component 6. The setting of the fender rubber 7 can absorb the collision energy between the ship and the positioning frame 1 to protect the ship and the positioning frame 1 from damage.

[0034] Furthermore, the adjusting component 6 includes a top plate 61, a sleeve 62 and a screw rod 63. The sleeve 62 is fixedly mounted on the working platform 5. The screw rod 63 is threadedly connected to the sleeve 62. The top plate 61 is fixedly mounted on both ends of the screw rod 63. When the pressure of the ship needs to be transmitted to the dock platform 2, the top plate 61 at one end of the working platform 5 away from the dock wall is rotated. The rotation of the top plate 61 drives the top plate 61 at the other end to move along the sleeve 62 toward the dock wall until the rotating plate 61 is pressed against the dock wall.

[0035] Further, the fixing component includes a pad 8, which is fixedly mounted on the bottom of the positioning frame 1, and the pad 8 is fixedly connected to the dock bottom plate 4. Specifically, before the positioning frame 1 is installed, the distance between the pad 8 at the bottom of the positioning frame 1 and the dock edge and the relative distances between the four foot pads 8 are determined in advance to facilitate installation and positioning.

[0036] Furthermore, four lifting horses 10 are fixedly installed on the top of the positioning frame 1, and two lifting horses 10 are fixedly installed on one side of the lower part of the positioning frame 1 close to the hull 3.

[0037] The arrangement of four lifting horses 10 on the top of the positioning frame 1 enables the entire positioning frame 1 to be lifted smoothly by a crane, which is convenient for the installation and disassembly of the positioning frame 1; the two lifting horses 10 on the sides of the positioning frame 1 enable the positioning frame 1 to be quickly flipped, and the horizontal positioning frame 1 can be flipped 90° to become a vertical positioning frame 1, which is convenient for installing the vertical positioning frame 1 on the dock bottom plate 4.

[0038] Furthermore, guardrails 11 are fixedly installed around the working platform 5, and an escalator 12 is installed between two adjacent working platforms 5. The setting of the guardrail 11 can provide a good protection for the workers, preventing them from falling during the shipbuilding process, and has high safety performance; the setting of the escalator 12 facilitates the workers to quickly get on and off the two working platforms 5, which is conducive to the orderly progress of the shipbuilding work.

[0039] Furthermore, an escalator passage is provided at the bottom of the upper working platform 5, and a cover plate 13 that flips upward is hinged at the top of the escalator passage.

[0040] When it is necessary to enter the lower working platform 5 from the upper working platform 5, the cover 13 is pulled and flipped upwards to expose the escalator passage, and workers can enter the escalator 12 through the escalator passage to reach the lower working platform 5; when it is necessary to carry out ship construction work on the upper working platform 5, the cover 13 is closed, which does not affect the workers' normal walking, carrying or construction, and prevents workers from falling from the escalator passage, thereby improving safety and ensuring the personal safety of workers.

[0041] Furthermore, the dock platform 2 is connected to the positioning frame 1 via a bridge passage 14 , and a step ladder 15 is installed between the bridge passage 14 and the working platform 5 .

[0042] A method for using a PCTC floating pier positioning device comprises the following steps in sequence:

[0043] S1: First perform JSA analysis, then select the installation position of the positioning frame 1, clean the relevant positions, and finally mark the position of the pad 8 on the dock bottom plate 4;

[0044] S2: Use the hooks 16 to connect the lifting horses 10 on the top and side of the positioning frame 1, then use the crane to lift the positioning frame 1, then turn the positioning frame 1 up and down 90 degrees, and finally slowly descend the crane to drop the positioning frame 1 to the predetermined position of S1;

[0045] S3: Weld the pad 8 or the horse plate 9 at the bottom of the positioning frame 1 to the dock bottom plate 4, rotate the top plate 61 to make it support the dock wall on the side of the dock platform 2, and finally build the bridge channel 14;

[0046] S4: After the ship is floated, the positioning frame 1 cooperates with the dock cable to position the hull 3 at a predetermined position, and the outer plate of the hull 3 contacts the fender rubber 7. During the dock drainage process, the hull 3 slowly descends along the positioning device until it falls on the dock bottom plate 4;

[0047] S5: Perform JSA analysis first, move the top plate 61 to the inside of the positioning frame 1, remove the bridge channel 14 and the positioning frame 1, and finally use a crane to lift out the positioning frame 1.

[0048] The working principle of the present invention includes the following process:

[0049] Step 1: Preparation

[0050] (1) First, conduct a JSA analysis to eliminate safety risks;

[0051] (2) The installation position of the positioning frame 1 is selected. The distance between the two positioning frames 1 is 32000 mm (adjustable), and they are respectively located at the bow and stern of the parallel mid-body of the whole ship.

[0052] (3) Clean the relevant positions and set up a safety area alert; mark the bottom plate 4 of the dock to determine the distance between the bottom pad 8 of the positioning frame 1 and the edge of the dock and the relative distance between the four foot pads 8 to facilitate installation and positioning.

[0053] (4) The positioning frame 1 has been placed on the dock platform 2.

[0054] (5) Crane preparation, personnel preparation, welding preparation.

[0055] Step 2: Lifting of positioning device

[0056] (1) Horizontal lifting: First, connect a hook 16 to the four lifting horses 10 on the top of the positioning frame 1, and connect a hook 16 to the two lifting horses 10 on the side of the positioning frame 1, and then slowly lift the hook to lift.

[0057] (2) Turn over 90°. Lift the positioning frame 1 to a certain height (higher than the height of the positioning frame 1 itself), slowly lower the hook 16 connected to the two lifting ears 10, and move the hook 16 to adjust the distance between it and the other hook 16, so that the positioning frame 1 can be turned over.

[0058] (3) Positioning. Move the hook 16 connected to the four lifting ears 10 and slowly lower it to the predetermined position. During this process, the operator pulls the rope to fine-tune the position of the positioning frame 1.

[0059] Step 3: Install the positioning device

[0060] (1) Place the positioning frame 1 at the marking position and check whether it deviates. The error should be within 15 mm.

[0061] (2) The pad 8 and the dock bottom plate 4 are directly welded and fixed.

[0062] (3) The adjusting component 6 is adjusted so that the top plate 61 of the adjusting component 6 is against the dock wall for pressure transmission.

[0063] (4) Finally, a bridge passage 14 is constructed to facilitate the passage of people.

[0064] (5) The second positioning frame 1 is installed in the same way.

[0065] Step 4: Use the positioning device

[0066] (1) After the ship is floated, the positioning frame 1 is used together with the dock cable to position the ship at a predetermined position.

[0067] (2) The outer plate of the ship is in contact with the fender rubber 7 of the positioning frame 1.

[0068] (3) During the dock drainage process, the ship slowly descends along the positioning frame 1 until it lands on the dock bottom plate 4.

[0069] Step 5: Removal of positioning device

[0070] (1) First, conduct a JSA analysis to eliminate operational safety risks and demarcate safe areas.

[0071] (2) The top plate 61 of the adjustment component is slowly adjusted inside the positioning frame 1.

[0072] (3) Remove the bridge channel 14 and the connection between the positioning frame 1 and the dock bottom plate 4.

[0073] (4) Connect the hook and wire rope and slowly lift out the positioning frame 1.

[0074] (5) Restore the work area.

[0075] Example 2

[0076] like Figure 7As shown, on the basis of Example 1, the fixing component in this embodiment includes a horse plate 9, the top of the horse plate 9 is fixedly connected to the positioning frame 1, and the bottom of the horse plate 9 is fixedly connected to the dock bottom plate 4. Specifically, the bottom surface of the horse plate 9 and the bottom surface of the pad 8 are located on the same horizontal plane, and there is a certain gap between the plate body of the horse plate 9 and the positioning frame 1, which is more convenient to disassemble without damaging the positioning frame 1.

[0077] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A PCTC floating pier positioning device, characterized in that: The invention comprises two positioning frames (1), the two positioning frames (1) are installed on the same side of a dock platform (2), the two positioning frames (1) are respectively located at the bow and stern positions of a hull (3) parallel to the midbody, the positioning frames (1) are fixedly installed on a dock bottom plate (4) through fixing components, a plurality of working platforms (5) are arranged on the positioning frames (1), the working platforms (5) are installed with adjusting components (6), the adjusting components (6) are used to transmit the pressure of the hull (3), and a fender rubber (7) is fixedly installed on the side of the working platform (5) away from the adjusting components (6).

2. The PCTC floating pier positioning device according to claim 1 is characterized in that: The adjusting component (6) comprises a top plate (61), a sleeve (62) and a screw rod (63); the sleeve (62) is fixedly mounted on the working platform (5); the screw rod (63) is threadedly connected to the sleeve (62); and the top plate (61) is fixedly mounted at both ends of the screw rod (63).

3. The PCTC floating pier positioning device according to claim 1 is characterized in that: The fixing component comprises a pad (8), the pad (8) is fixedly mounted on the bottom of the positioning frame (1), and the pad (8) is fixedly connected to the dock bottom plate (4).

4. The PCTC floating pier positioning device according to claim 1 is characterized in that: The fixing component comprises a horse plate (9), the top of the horse plate (9) is fixedly connected to the positioning frame (1), and the bottom of the horse plate (9) is fixedly connected to the dock bottom plate (4).

5. The PCTC floating pier positioning device according to claim 1 is characterized in that: Four lifting horses (10) are fixedly installed on the top of the positioning frame (1), and two of the lifting horses (10) are fixedly installed on one side of the lower part of the positioning frame (1) close to the hull (3).

6. The PCTC floating pier positioning device according to claim 1 is characterized in that: Guardrails (11) are fixedly installed around the working platforms (5), a plurality of the working platforms (5) are arranged up and down, and an escalator (12) is installed between two adjacent working platforms (5).

7. The PCTC floating pier positioning device according to claim 6 is characterized in that: An escalator passage is arranged at the bottom of the upper working platform (5), and a cover plate (13) that flips upward is hinged at the top of the escalator passage.

8. The PCTC floating pier positioning device according to claim 1 is characterized in that: The dock platform (2) and the positioning frame (1) are connected via a bridge passage (14), and a step ladder (15) is installed between the bridge passage (14) and the working platform (5).

9. A method for using a PCTC floating pier positioning device, characterized in that: The following steps are included in sequence: S1: First, perform JSA analysis, then select the installation position of the positioning frame (1), clean the relevant position, and finally mark the position of the pad (8) on the dock bottom plate (4); S2: Use the hooks (16) to connect the lifting horses (10) on the top and sides of the positioning frame (1), then use a crane to lift the positioning frame (1), then turn the positioning frame (1) up and down 90 degrees, and finally slowly descend the crane to lower the positioning frame (1) to the predetermined position of S1; S3: Welding the pad (8) or the horse plate (9) at the bottom of the positioning frame (1) to the dock bottom plate (4), rotating the top plate (61) to support the dock wall on the side of the dock platform (2), and finally setting up the bridge passage (14); S4: After the ship is floated, the positioning frame (1) cooperates with the dock cable to position the hull (3) at a predetermined position, and the outer plate of the hull (3) contacts the fender rubber (7). During the dock drainage process, the hull (3) slowly descends along the positioning device until it lands on the dock bottom plate (4); S5: First, perform JSA analysis, move the top plate (61) to the inside of the positioning frame (1), remove the bridge channel (14) and the positioning frame (1), and finally use a crane to lift out the positioning frame (1).

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