Marine hanging basket rail end connecting and fixing method

Abstract

The invention belongs to the technical field of ship and ocean engineering construction, and discloses a method for connecting and fixing ends of marine hanging basket rails. The problem that an existing rail end connecting and fixing method is low in efficiency is effectively solved. The fixing method comprises the following steps: (1) after the block is hoisted and carried, mounting a rack; (2) a hanging basket track is erected between two front and back adjacent racks, and the front and back hanging basket tracks are connected through a connecting plate; (3) a rail lengthening tool is installed at the end of the tail end hanging basket rail, and the rail lengthening tool comprises a lengthening rail, an anti-falling assembly and a limiting baffle; (4) after the next block is hoisted and carried, the rail lengthening tool installed on the block is dismantled; (5) a next block rack is installed, and a hanging basket track of the next block is erected; and (6) the steps (3)-(5) are repeated, whole-ship through erection of the hanging basket track is completed step by step, and the hanging basket is made to span multiple blocks for construction. The working efficiency is effectively improved, and the construction period is shortened.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding and marine engineering construction technology, and particularly relates to a method for connecting and fixing the end of a ship's suspended platform track. Background Technology

[0002] Marine suspended platform rails are an important piece of equipment for shipbuilding companies to improve construction efficiency. During the assembly phase of the side deck sections, marine suspended platform rails erected in the side outer plating area replace the erection of outer plating scaffolding due to their flexibility, safety, efficiency, and economy.

[0003] During the erection of the marine gantry rails, as each section of the side deck is hoisted and installed, the gantry rails are also connected and extended one by one, ultimately achieving the continuous erection of the gantry on the side deck in the cargo hold parallel to the midship area. Multiple short I-beam rails are fixed together with connecting plates to form a single extended rail. A frame is installed at the joint of each short rail, with the frame legs supported on the top deck plate and the top angled to the eye plate on the deck surface. The joint of each rail is aligned with the centerline of the frame, and two clamps on the frame clamp the ends of the rails on both sides of the joint.

[0004] However, during the installation of each track, the end of the track can only be connected and fixed to the track and frame above it after the next section is hoisted and installed. This means that the end of the track cannot be connected to the next track temporarily before the next section is hoisted and installed, and only a single clamp of the frame is used. When subjected to force on one side, there is a risk of overturning.

[0005] In order to avoid affecting the use of the front end rail gantry for the next section hoisting and to avoid the aforementioned safety risks, such as Figure 5 As shown, a temporary frame 15 and a temporary frame connecting eye plate 16 are generally set up near the end track joint so that the two clamps of the temporary frame 15 can clamp the track at the same time. After the next section is hoisted and installed, the temporary frame 15 is removed and the frame at the original joint position and the next section of track are used to continue the erection.

[0006] The problems of the method are: (1) the temporary rack connecting eye plate 16 needs to be welded on the deck, which increases the welding, cutting, polishing, painting and other processes, reduces the efficiency, and the cutting of the temporary rack connecting eye plate 16 is easy to damage the deck base material and cause quality problems; (2) the method increases the temporary rack 15 mounting and dismounting process, which exists repeatedly mounting and dismounting, reduces the efficiency, and prolongs the construction period; (3) the tooling cost and labor cost of the temporary rack 15 are high, and the weight and volume are large, which is difficult to turn over and needs to occupy storage space; in addition, the crane needs to be used by multiple people to cooperate with the mounting and dismounting of the temporary rack 15, which occupies the crane and human resources; (4) during the whole ship through track basket erection process, the temporary rack 15 needs to be mounted and dismounted for a long time and multiple times on the side of the ship, which increases the safety risk. SUMMARY

[0007] The purpose of the present application is to provide a ship-mounted basket track end connection fixing method, which effectively solves the problems of low efficiency and high cost existing in the track end connection fixing method by setting a temporary rack and an eye plate near the track butt joint at the end of each total section.

[0008] To solve the above technical problems, the technical scheme adopted by the present application is: a ship-mounted basket track end connection fixing method, comprising the following steps: S1, after the total section is hoisted and carried, a rack is installed.

[0009] S2, a basket track is erected between the two racks adjacent to the front and rear, the butt joint between the front and rear basket tracks is located on the center line of the rack, and a connecting plate is used to connect the front and rear basket tracks to form a whole.

[0010] S3, a track lengthening tool is installed at the free end of the end basket track, the track lengthening tool comprises a lengthening track, an anti-falling assembly for preventing the lengthening track from falling, and a limiting baffle for preventing the basket from walking to the end and separating from the basket track, and the lengthening track and the basket track are H-shaped profiles with the same cross section.

[0011] Firstly, the anti-falling assembly is hung on the end rack, then the lengthening track is installed at the free end of the end basket track, so that the two clamps of the rack clamp the lengthening track and the basket track respectively, and finally the limiting baffle is arranged on the side of the lengthening track close to the track butt joint.

[0012] S4, after the next total section is hoisted and carried, the track lengthening tool installed in step S3 of the present total section is removed.

[0013] S5, the rack of the next total section is installed, and the basket track of the next total section is erected according to step S2.

[0014] S6, steps S3-S5 are repeated to gradually complete the whole ship through basket track erection, so that the basket spans multiple total sections for construction.

[0015] Furthermore, the upper flange of the extended track and the upper flange of the end basket track are connected by connecting plate bolts, the web of the extended track and the web of the end basket track are connected by connecting plate bolts, the limiting baffle is an angle steel profile, and the limiting baffle is bolted to the extended track.

[0016] Furthermore, the fall arrestor includes a chain, a detachment hook, and an eye ring. The eye ring is fixed to the upper flange of the extended track. One end of the chain is connected to the eye ring, and the other end of the chain is fixedly connected to the detachment hook, which is hung on the end frame.

[0017] Furthermore, the extended track is made of aluminum alloy.

[0018] Furthermore, in step S1, after the main section is hoisted and mounted, a frame is installed on the side deck, and a frame connection eye plate is provided on the side deck near the frame. The frame and the frame connection eye plate are connected and fixed by diagonal bracing.

[0019] Compared with the prior art, the beneficial technical effects of the present invention are: (1) The present invention, by designing and using track extension fixtures, replaces the repeated erection and dismantling of temporary frames with lightweight track extension fixtures, without the need for additional welding of temporary frame connecting eye plates or the addition of temporary frames, thereby reducing the construction intensity of workers, improving work efficiency, shortening the construction period, and increasing the erection and dismantling efficiency of the end basket of the main section by more than 90%.

[0020] (2) The rail extension fixture provided by this invention is lightweight, small in size, low in manufacturing cost, and simple and quick to operate. It does not occupy cranes or site resources during assembly and disassembly, and can be completed by a single person. It has high assembly and disassembly efficiency and saves overall costs. In addition, it can reduce the time spent working at heights and reduce safety risks. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the track extension tooling of the present invention.

[0022] Figure 2 This is a schematic diagram illustrating the use of the track extension tool of the present invention.

[0023] Figure 3 This is a side view of the suspended platform frame erection of the present invention.

[0024] Figure 4 This is a schematic diagram of the method for connecting and fixing the end of the marine gantry rail of the present invention.

[0025] Figure 5 This is a schematic diagram of the existing method for connecting and fixing the ends of the marine gondola track.

[0026] Explanation of reference numerals in the attached diagram: 1. Hoist rail; 2. Frame; 3. Caliper; 4. Extension rail; 5. Hoist; 6. Limiting baffle; 7. Chain; 8. Anti-detachment hook; 9. Eye ring; 10. Upper wing flange; 11. Web plate; 12. Frame connecting eye plate; 13. Diagonal brace; 14. Connecting plate; 15. Temporary frame; 16. Temporary frame connecting eye plate. Detailed Implementation

[0027] Example 1: A method for connecting and fixing the end of a marine gondola track, such as... Figure 2 and Figure 4 As shown, by using the track extension tool to extend the suspended basket track 1, the two clamps 3 of the frame 2 can simultaneously clamp the extended track 4 of the track extension tool and the suspended basket track 1, reducing the risk of the frame 2 overturning and achieving safe and efficient erection and dismantling of the suspended basket 5.

[0028] like Figure 1 As shown, the track extension fixture includes an extension track 4, a fall protection component to prevent the extension track 4 from falling, and a limiting baffle 6 to prevent the suspended basket 5 from moving to the end and leaving the suspended basket track 1.

[0029] The extended track 4 and the suspended platform track 1 are both I-beam profiles with the same cross-section. In this embodiment, the extended track 4 is made of lightweight materials such as aluminum alloy, which can be moved and installed by a single person.

[0030] like Figure 1 and Figure 2 As shown, the anti-fall assembly includes a chain 7, an anti-detachment hook 8, and an eye ring 9. The eye ring 9 is fixed to the upper flange 10 of the extension track 4. One end of the chain 7 is connected to the eye ring 9, and the other end of the chain 7 is fixedly connected to the anti-detachment hook 8. The anti-detachment hook 7 can be hung on the end frame 2 to prevent the track extension fixture from falling during assembly and disassembly.

[0031] like Figure 1 and Figure 2 As shown, the limiting baffle 6 is made of angle steel profile and has bolt connection holes, which can be connected to the web plate 11 of the extension rail 4 by bolts and nuts. The limiting baffle 6 is set on the side of the extension rail 4 near the rail joint. The limiting baffle 6 can prevent the hoist 5 from moving onto the rail extension fixture and falling off the hoist 5 rail 1.

[0032] The track extension fixture provided in this embodiment is lightweight, small in size, and low in manufacturing cost. It does not occupy cranes or site resources during assembly and disassembly, and can be completed by a single person. It has high assembly and disassembly efficiency and saves overall costs.

[0033] The method for connecting and fixing the end of the marine gantry rail provided in this embodiment specifically includes the following steps: S1, after the main section is hoisted and mounted, install the frame 2 on the side deck, such as... Figure 3As shown, a frame connection eye plate 12 is installed on the side deck near the frame 2, and the frame 2 and the frame connection eye plate 12 are connected and fixed by a diagonal brace 13.

[0034] S2, such as Figure 4 and Figure 2 As shown, a suspended platform track 1 is installed between two adjacent frames 2, so that the joint between the front and rear suspended platform tracks 1 is located on the center line of the frame 2, and the front and rear suspended platform tracks 1 are connected by a connecting plate 14 to form a whole.

[0035] S3. Install a track extension fixture at the free end of the end suspended platform track 1, and control the suspended platform 5 to move onto this section to facilitate personnel to construct the horizontal and vertical closure welds of the outer plate.

[0036] like Figure 2 As shown, the installation method between the rail extension fixture and the end basket rail 1 is as follows: (1) Hang the anti-detachment hook 8 on the end frame 2. (2) Install the extension rail 4 to the free end of the end basket rail 1. Connect the upper flange 10 of the extension rail 4 and the upper flange 10 of the end basket rail 1 with the connecting plate 14 bolts. Connect the web plate 11 of the extension rail 4 and the web plate 11 of the end basket rail 1 with the connecting plate 14 bolts, so that the extension rail 4 and the end basket rail 1 are connected as a whole, achieving the extension effect. The length of the extended rail extends out of the clamp 3 of the frame 2, so that the two clamps 3 of the frame 2 clamp the extension rail 4 and the basket rail 1 respectively. (3) Set a limiting baffle 6 on the side of the extension rail 4 near the rail joint. The limiting baffle 6 is bolted to the extension rail 4.

[0037] The connection between the track extension tool and the end suspended platform track 1 in this embodiment is simple and quick, effectively reducing the time spent working at height, reducing the difficulty of assembling and disassembling the suspended platform 5, standardizing construction, and reducing safety risks.

[0038] S4. After the next section is hoisted and installed, remove the track extension fixtures installed in this section in step S3.

[0039] S5. Refer to step S1 to install the next section frame 2, and refer to step S2 to erect the next section's suspended platform track 1.

[0040] S6. Repeat steps S3 to S5 to gradually complete the construction of the entire suspended platform track 1, so that the suspended platform 5 can span multiple sections of construction.

[0041] Taking a 210,000-ton bulk carrier as an example, by using the connection and fixing method and rail extension tooling provided in this embodiment, the main deck side can be reduced by about 14 times during the single ship assembly stage, and the temporary welding frame connection eye plate 12 can be reduced by about 14 pieces, saving about 7,000 yuan in labor and material costs per ship.

[0042] Compared with the prior art, the connection and fixing method and track extension tooling provided in this embodiment do not require additional welding of temporary frame connection eye plate 16 or additional temporary frame 15, which reduces the construction intensity of workers, improves work efficiency, shortens the construction period, and improves the erection and dismantling efficiency of the end basket 5 of the main section by more than 90%.

[0043] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A method for connecting and fixing the end of a marine gondola track, characterized in that, Includes the following steps: S1. After the main section is hoisted and mounted, install the frame; S2. Install a suspended platform track between two adjacent frames, ensuring that the joint between the front and rear suspended platform tracks is located on the center line of the frame, and use a connecting plate to connect the front and rear suspended platform tracks to form a whole. S3. Install a track extension fixture at the free end of the end suspended platform track. The track extension fixture includes an extension track, a fall protection component to prevent the extension track from falling, and a limiting baffle to prevent the suspended platform from moving to the end and leaving the suspended platform track. The extension track and the suspended platform track are I-beam profiles with the same cross-section. First, hang the fall arrestor on the end frame. Then, install the extension rail to the free end of the end basket rail, so that the two clamps of the frame clamp the extension rail and the basket rail respectively. Finally, set a limit baffle on the side of the extension rail near the rail joint. S4. After the next section is hoisted and installed, remove the track extension fixtures installed in this section in step S3. S5. Install the next section frame, and refer to step S2 to erect the next section's suspended platform track; S6. Repeat steps S3 to S5 to gradually complete the full-ship connection of the suspended platform track, allowing the suspended platform to span multiple construction sections.

2. The method for connecting and fixing the end of a marine scaffold track according to claim 1, characterized in that, The upper flange of the extended track and the upper flange of the end basket track are connected by connecting plate bolts. The web of the extended track and the web of the end basket track are also connected by connecting plate bolts. The limiting baffle is an angle steel profile and is bolted to the extended track.

3. The method for connecting and fixing the end of a marine scaffold track according to claim 2, characterized in that, The fall arrestor assembly includes a chain, a detachment hook, and an eye ring. The eye ring is fixed to the upper flange of the extended track. One end of the chain is connected to the eye ring, and the other end of the chain is fixedly connected to the detachment hook, which is hung on the end frame.

4. The method for connecting and fixing the end of a marine gondola track according to claim 3, characterized in that, The extended track is made of aluminum alloy.

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