A method of assembly straightening during a ship assembly process

Abstract

The application relates to a kind of assembly straightening methods in ship general assembly process, which comprises the following steps: fixing T-row clamps on the T-row panels of deck counter top and lower deck in uneven positions respectively, connecting the T-row clamps facing each other with chain hoists respectively, straightening by tightening the chains of chain hoists, assembling at the butt joint position of straightening reaching design requirements, and finally removing the chain hoists and all T-row clamps.The assembly straightening method in ship general assembly process is simple and convenient to operate, and has wide applicability, which solves the problem that deck part positions cannot be welded and assembled, brings convenience to ship assembly, and effectively improves the assembly efficiency of on-site general assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shipbuilding, in particular to a method for assembling and flattening in the process of ship assembly. BACKGROUND

[0002] In the process of ship assembly, due to various factors, the local deck surface will be deformed during assembly, resulting in local unevenness at the butt joint position of the deck surface, which requires flattening during assembly.

[0003] During on-site construction, the uneven parts are generally flattened by welding a plate on the deck surface and then using an oil pump to lift the plate. This method is suitable for most assembly flattening operations, but welding a plate is not allowed in some parts of the ship assembly process, making it difficult to implement the assembly flattening work in these parts using conventional methods. SUMMARY

[0004] To solve the technical problems existing in the prior art, the present application provides a method for assembling and flattening in the process of ship assembly, which uses a T-shaped clamp and a hand-operated hoist to tighten and flatten the deck surface, thereby solving the problem of not being able to weld a plate in some positions of the deck surface and effectively improving the assembly efficiency of the on-site assembly.

[0005] To achieve the above-mentioned purpose, the technical solution of the present application is as follows:

[0006] A method for assembling and flattening in the process of ship assembly, comprising the following steps:

[0007] Step 1: Connect the deck surface counter-jack and the T-shaped panel on the lower deck surface to a T-shaped clamp respectively at the uneven part where welding a plate is not allowed;

[0008] Step 2: Adjust the position of the T-shaped clamp and clamp the T-shaped panel;

[0009] Step 3: Connect the lower end of the T-shaped clamp on the deck surface counter-jack to a release buckle, then connect the release buckle to a hand-operated hoist, and loosen the chain of the hand-operated hoist to the position of the T-shaped panel on the lower deck surface;

[0010] Step 4: Connect the hook at the lower end of the chain of the hand-operated hoist to another release buckle, then connect the release buckle connected to the hook at the lower end of the chain of the hand-operated hoist to the T-shaped clamp fastened to the T-shaped panel on the lower deck surface;

[0011] Step 5: Slowly tighten the chain of the hand-operated hoist, and observe whether the T-shaped clamp and the hand-operated hoist are damaged during the tightening process. If there is damage, stop tightening immediately. If there is no damage, continue tightening. Stop tightening when the hand-operated hoist is fully stressed, and continue to observe to ensure safety before starting to tighten and correct;

[0012] Step six, tighten the correction of the whole process monitoring uneven position deck, when the two butt joint position flatness reaches the design requirements after stopping tightening, put the chain hoist insurance;

[0013] Step seven, in the butt joint position of the design requirements of the assembly, after the assembly is completed, open the chain hoist chain insurance, slowly loosen the chain hoist, until the chain hoist is no longer stressed, observe whether the assembled position has stress deformation, if so, tighten and repeat the above flattening process; if not, continue to loosen the chain hoist until it can be removed;

[0014] Step eight, remove the chain hoist and all T row clamps, and the assembly flattening work is completed.

[0015] As a preferred technical solution, the T row clamp comprises two clamping grooves, a plurality of fastening studs and an adjusting mechanism, the two clamping grooves are oppositely arranged, the lower parts of the two clamping grooves are connected through the adjusting mechanism, the upper parts of the clamping grooves are provided with threaded holes matched with the fastening studs, and the fastening studs pass through the threaded holes to clamp the T row panel.

[0016] As a preferred technical solution, the adjusting mechanism comprises two rod penetrating pieces, four adjusting nuts and an adjusting rod, the two rod penetrating pieces are respectively fixed on the lower surfaces of the two clamping grooves, the rod penetrating pieces are provided with penetrating holes, the penetrating holes are respectively provided with an adjusting nut on the two sides, the adjusting rod is provided with matching threads on the inner circle of the adjusting nut, and the two ends of the adjusting rod pass through the penetrating holes of the two rod penetrating pieces and are fixedly connected with the two rod penetrating pieces through the four adjusting nuts.

[0017] As a preferred technical solution, in step two, the installation position of the T row clamp on the T row panel is adjusted, the spacing of the two rod penetrating pieces is adjusted through the adjusting rod and is fixed through the four adjusting nuts, the two clamping grooves are clamped on the T row panel through the fastening studs, and the installation of the T row clamp is completed.

[0018] As a preferred technical solution, the lower part of the middle position of the adjusting rod is provided with an eye, and in steps three and four, the shackles at the two ends of the chain of the chain hoist are respectively connected with the deck surface and the eye of the T row clamp on the lower deck surface.

[0019] As a preferred technical solution, when the chain hoist is completely stressed, that is, when the chain of the chain hoist is straightened, the time for continuous observation is 3-10 minutes.

[0020] As a preferred technical solution, in step six, the design requirement for flatness is not more than 5mm.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] (1) The present invention provides an assembly and leveling method during the overall assembly of a ship. The method connects the upper and lower layers of T-row panels through a T-row clamp and a hand winch. The assembly position is leveled by tightening the chain of the hand winch. The method has high safety and reliability.

[0023] (2) The assembly and leveling method of the present invention during the ship assembly process is simple and convenient to operate and has wide applicability. It solves the problem that some parts of the deck cannot be welded to assemble the horse plate, brings convenience to the ship assembly, and can effectively improve the assembly efficiency of the on-site assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the operation of an assembly and leveling method in a ship assembly process according to the present invention;

[0025] Figure 2 This is a schematic structural diagram of a T-row clamp in an assembly and leveling method during a ship assembly process according to the present invention;

[0026] Figure 3 The present invention is a schematic diagram of the installation of a T-row clamp in an assembly and leveling method during the overall assembly process of a ship.

[0027] In the figure: 1. T-row panel; 2. Hand chain hoist; 3. T-row clamp; 31. Slot; 32. Fastening stud; 33. Through-rod piece; 34. Adjusting nut; 35. Adjusting rod; 36. Lifting eye; 4. Shackle. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0029] like Figure 1 As shown, a method for assembling and leveling in a ship assembly process includes the following steps:

[0030] Step 1: Connect the top deck and the T-row panels 1 on the lower deck to a T-row fixture 3 respectively at the uneven part where the horse plate cannot be welded;

[0031] like Figure 2As shown, the T-row clamp 3 includes two clamping slots 31, several fastening studs 32 and an adjusting mechanism, the two clamping slots 31 are arranged opposite to each other, the lower part of the two clamping slots 31 is connected by the adjusting mechanism, the upper part of the clamping slot 31 is provided with a threaded hole matched with the fastening stud 32, the fastening stud 32 passes through the threaded hole to clamp the T-row panel 1. The adjusting mechanism includes two through rod members 33, four adjusting nuts 34 and an adjusting rod 35, the two through rod members 33 are fixed on the lower surfaces of the two clamping slots 31 respectively, the through rod member 33 is provided with a through hole, the through hole is provided with an adjusting nut 34 on each side, the adjusting rod 35 is provided with matching threads on the inner ring of the adjusting nut 34 and the adjusting rod 35, the two ends of the adjusting rod 35 pass through the through holes of the two through rod members 33 and are fixedly connected with the two through rod members 33 through the four adjusting nuts 34, and the lower part of the middle position of the adjusting rod 35 is provided with an eye 36. The spacing of the two through rod members 33 is adjusted by the adjusting rod 35 and fixed by the four adjusting nuts 34, so as to adjust the spacing of the two clamping slots 31.

[0032] Step two, as shown, adjust the installation position of the T-row clamp 3 on the T-row panel 1, adjust the spacing of the two clamping slots 31 through the adjusting mechanism, and clamp the T-row panel 1 through the fastening studs 32; Figure 3

[0033] Step three, connect the eye 36 of the T-row clamp 3 on the deck surface with a shackle 4, then connect the shackle 4 with a hand chain block 2, and loosen the chain of the hand chain block 2 to the position of the T-row panel 1 on the lower deck surface;

[0034] Step four, connect the hook at the lower end of the chain of the hand chain block 2 with another shackle 4, and then connect the shackle 4 connected with the hook at the lower end of the chain of the hand chain block 2 with the eye 36 of the T-row clamp 3 fastened on the T-row panel 1 on the lower deck surface;

[0035] Step five, slowly tighten the chain of the hand chain block 2, and observe whether the T-row clamp 3 and the hand chain block 2 are damaged during the tightening process, if damaged, stop tightening immediately, if not affected, continue tightening, stop tightening when the hand chain block 2 is fully stressed, i.e. the chain of the hand chain block 2 is straightened, continue to observe for 3-10 minutes to ensure safety before starting to tighten and correct;

[0036] Step six, monitor the deck condition at the uneven position throughout the tightening and correction process, stop tightening when the flatness of the two butt joint positions reaches the design requirement of not more than 5mm, and secure the hand chain block 2;

[0037] ​Step seven, at the butt joint position of flattening to the design requirements, after assembly, open the chain safety of chain block 2, slowly loosen chain block 2 until chain block 2 is not stressed, observe whether the assembled position has stress deformation, if so, tighten again and repeat the flattening process; if not, continue to loosen chain block 2 until it can be disassembled.

[0038] Step eight, remove chain block 2 and all T-row clamps 3, and the assembly flattening work is completed.

[0039] The embodiment is only a further explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make non-creative modifications to the embodiment according to needs after reading the specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the Patent Law.

Claims

1. A method for assembly and leveling in the process of ship assembly, characterized in that: The method comprises the following steps: Step 1. At the uneven part where the horse plate cannot be welded, the top of the deck surface and the T-row panel on the lower deck surface are respectively connected with a T-row clamp. The T-row clamp includes two slots, a plurality of fastening studs and an adjustment mechanism. The notches of the two slots are arranged opposite to each other. The lower parts of the two slots are connected by an adjustment mechanism. The upper part of the slot is provided with a threaded hole matching the fastening studs. The fastening studs pass through the threaded hole to clamp the slot to the T-row panel. The adjustment mechanism includes two through rods, four adjusting nuts and an adjusting rod. The two through rods are respectively fixed on the lower surfaces of the two slots. The through rod is provided with a through hole, and there is an adjusting nut on both sides of the through hole. Matching threads are provided on the adjusting rod and the inner ring of the adjusting nut. The two ends of the adjusting rod pass through the through holes of the two through rods respectively and are fixed to the two through rods through four adjusting nuts. Step 2: Adjust the position of the T-row clamps and clamp the T-row panels; Step 3: Connect the lower end of the T-row clamp on the top of the deck to a shackle, then connect the shackle to the hand chain hoist, and loosen the chain of the hand chain hoist to the position of the T-row panel on the lower deck; Step 4: Connect the hook at the lower end of the chain hoist chain to another shackle, and then connect the shackle connected to the hook at the lower end of the chain hoist chain to the T-row clamp fastened to the T-row panel on the lower deck; Step 5: Slowly tighten the chain of the chain hoist. During the tightening process, observe whether the T-row clamp and the chain hoist are damaged. If damaged, stop tightening immediately. If not, continue tightening. Stop tightening when the chain hoist is fully stressed. Continue to observe and start tightening and correction after ensuring safety. Step 6: Monitor the deck at the uneven position during the tightening and correction process. Stop tightening when the flatness of the two docking positions meets the design requirements, and secure the hand chain hoist. Step 7: Assemble at the docking position where the leveling meets the design requirements. After assembly is completed, open the chain safety of the chain hoist and slowly loosen the chain hoist until it is no longer stressed. Observe whether there is stress deformation at the assembled position. If so, tighten it again and repeat the above leveling process. If not, continue to loosen the chain hoist until it can be disassembled. Step 8. Remove the hand hoist and all T-row clamps, and the assembly and leveling work is completed.

2. The method for assembling and leveling a ship during assembly according to claim 1, characterized in that: In step 2, the installation position of the T-row clamp on the T-row panel is adjusted, the spacing between the two through-rods is adjusted by the adjustment rod and fixed by four adjustment nuts, and then the two slots are clamped to the T-row panel by tightening the studs to complete the installation of the T-row clamp.

3. The method for assembling and leveling a ship during assembly according to claim 1, characterized in that: A lifting lug is provided at the lower part of the middle position of the adjusting rod. In steps three and four, the shackles at both ends of the hand winch chain are respectively connected to the lifting lugs of the T-row clamps on the top and lower deck surfaces of the deck.

4. The method for assembling and leveling a ship during assembly according to claim 1, characterized in that: When the hand chain hoist is fully stressed, that is, when the chain of the hand chain hoist is straightened, the observation time should continue for 3-10 minutes.

5. The method for assembling and leveling a ship during assembly according to claim 1, characterized in that: In step six, the design requirement for flatness is no more than 5 mm.

Images