DE1903389A1 - Process for joining ship hull parts and equipment for carrying out this process - Google Patents

Description

DR. BERG DIPL.-ING. STAPF

PATENTANWÄLTE 8 MÜNCHEN 2. H1LBL.ESTRASSE 2O

Dr. Berg Dipl.-Ing. Stapf, 8 Munich 2, HilblestrafSe 20 Your sign

Our symbol _VI / _{My 18} 105 ^DatUm % | _? YES. 196S

Attorney's file 18 105

Zjednoczenie Przemyslu Okretowego

Gdansk - Wrzeszoz

Poland

Method for joining ship hull parts and Facility for carrying out this procedure

The invention relates to a method for connecting ship hull parts to one another in the dry dock and a facility to carry out this process. The aim of the invention is to reduce the total shipbuilding time To shorten"

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A well-known method of building ship hulls, The sectional construction, consists in d-aß successively prefabricated fuselage sections, the size of which depends on the capacity depends on the available cranes, put together and connected to each other. Although this procedure is simple, it does not allow the time-consuming work at the same time Perform equipment work. This lengthens the total shipbuilding time.

Another known method is the block method. In this case, the buildings are built on separate building sites Blocks delivered to Hellig or Dock and there, after they have been placed in the correct position, with one another tied together. When all the blocks are connected, the hull is released from the stack. This method of building ship hulls allowed it is necessary to partially equip the ship in the blocks. The possibilities, the marine equipment to be carried out in the block, however, are limited, since the finishing work is carried out at the same time the hull construction done, with a lack of adequate Crane facilities. It also prevents the restricted Size of the blocks to carry out a lot of equipment work, which extend over several blocks at the same time.

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The invention aims to shorten the shipbuilding time by that it creates the possibility of having the construction of the body and the equipment work run in parallel.

The possibility of starting the finishing work at an early stage is created according to the invention by that after completion of the construction of the aft ship in the dry dock and after the connecting joint has been adapted to the middle part of the fuselage, the latter on the dry dock is relocated while the stern is being undocked and brought to the equipment berth and then, after the middle part of the hull has been brought back into the dry dock, the fore part in connection with the middle part of the fuselage is being built. If the construction of the fore ship is finished, the undocked aft ship will be again brought into the dry dock, and the two hull parts are connected to one another after they have been aligned with one another.

The reliable contraction of both R "mp-fteile * o \ close as possible to one another is dtiroii allows fcinfc which at least ζ" β ±

has, subject to certain tours and ZusammenBpannvorrichtim ¹ ·.

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BATH ORIGINAL

Because the stern, in which very many Ship equipment work to be carried out, which is brought to the equipment berth, can be a major one Some of the fitting out work will be carried out while the forecastle is still under construction. Through the overlay shipbuilding and finishing work, the overall shipbuilding time is significantly reduced.

An embodiment of the device according to the invention for connecting the hull parts is shown in the schematic ' table drawing shown.

Fig. 1 shows the side view of the ship with the attached device for connecting the hull parts together.

Fig. 2 shows the view from above of the body parts with the attached connector.

The device according to the embodiment has four guides 5. Two of these are on the outside of the ship's bottom attached, one at the stern and the other at the junction. The other two Guides 5 are attached to the de eic of the ship's hull, namely also at the connection point. They are symmetrical about the median longitudinal plane of the fuselage

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arranged. Each of the guides 5 has a guide element 9 and a pin 6. A pin acts with the guide element 9 attached to the bottom of the dry dock 6, which sits on the outside of the aft ship floor. With the guide elements 9 »those on the deck of the aft ship 1 are attached, pegs 6, which sit on the deck of the front part of the ship 3, interact. A further guide element 9 and a pin 6 are on the outside of the ship floor in the longitudinal center plane of the Arranged ship. Their arrangement is exactly the opposite of that of the last-mentioned guide elements and pins. A hydraulic energy source 7 is arranged at one of the hydraulic cylinders 4, which is located on the forecastle 3 is located. Two of these cylinders 4 are arranged on the side walls of the ship, two on deck and two above on the (Eank.

Fastening devices 10 for the hydraulic cylinders 4 are provided on brackets 11, which are located on the aft ship 1 «is on each of the sides of the ship a brake unit 12 is arranged, which consists of a hydraulic press and a buffer 14. The hydraulic press 13 is attached to the foredeck 3, while the buffer working with it is attached to the stern 1 is. Each of the brake units 12 is associated with one of

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Manually operated hydraulic pump 8 connected to the forecastle 3. On keel blocks 15 under the forecastle Polyvinyl chloride cushions 16 and those 17 made of steel are arranged under the forecastle 3. Between A layer of fat 18 is provided for these pads.

| When carrying out the method according to the invention first of all attached to the aft hull 1 of the central hull block 2 of the fore ship 3 and the joint will be adapted. After the joint has been adjusted and guides 5, hydraulic cylinders 4, brackets 11 and brake units 12 are mounted and after the joints have been secured against deformation the central hull part 2 brought out of the dock and the aft hull 1 undocked and to the equipment berth spent. Then then polyvinyl chloride pad 16, a layer of fat 18 and steel pad 17 were placed on the keel blocks 15, the block 2 is brought back into the dry dock and the Forecastle 3 is attached to Block 2.

The finishing works are being carried out during the construction of fore ship 3 at the stern 1.

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If the construction of the fore hull 3 is finished, then the floating stern part 1 in the dry dock retracted, aligned there with the aid of the dock's winches and by lowering the water level in the dry dock lowered. As soon as the pins 6 engage in the guide elements 9 of the guides, the fastening means 10 of the hydraulic cylinders 4 are attached to the brackets 11. Then the braking units put into operation so that the pistons of the hydraulic presses 13 are supported against the buffers 14. Will now If the hydraulic energy system 7 is put into operation, the hydraulic cylinders 4 and the forecastle begin to work and the stern are pulled as close to each other as possible. With the help of the braking units 12, the speed of the approach of the two ship parts and the braking of the same after the contraction precisely regulated at every moment. The contraction of the two parts of the body and the pumping out of water from the dry dock are regulated in such a way that the aft ship 1 is placed on the Kielkletze 19 at the moment Will, in which both parts of the body meet. If the gap at the joint between the fuselage parts is unequal, this will be done by reworking balanced with the welding torch. Then the

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Body parts are tightened as close as possible to each other with the aid of the hydraulic cylinder 4. Then are the two Fuselage parts are finally connected to one another, so the device for connecting the fuselage parts is restored removed and the hull can be released from the stack.

Patent claims:

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Claims (5)

_ 9 patent claims: 1. Procedure for finishing ship hulls from "hull parts, characterized in that a stern fuselage part (1) and a central fuselage part (2) be adapted to one another in the dry dock that the central hull part (2) for undocking the stern hull part (1) is removed from the dock and then back on keel blocks (15) for the attachment of the fore ship (3) is placed on the central body part (2), in which Time equipment work can be carried out on the aft part of the fuselage and that last the rear part of the fuselage (1) and the finished front body part (3) are pulled against each other and connected to one another. 2. The method according to claim 1, characterized in that the final connection of the two completed Hull parts are carried out in the dry. 3. The method according to claim 1 or 2, characterized in that that for the final connection of the two hull parts of the aft hull part (1) with the help Introduced floating in guides (5) by dock winches and then with the help of hydraulic devices the front part of the fuselage (3) to the aft part of the fuselage (1) is relieved while being contracted 909839/0255 _ ₁₀ - ίο - the water is continuously pumped out of the dry dock so that the aft fuselage part (1) in the Moment when the "two fuselage parts collide Keel blocks (19) is placed. 4. Device for performing the method according to one of claims 1 to 3> dadur-ch characterized that in addition to a number of guides (5) at least two Brake units (12) are provided. 5. Apparatus according to claim 4> characterized in that that the guides (5) consist of guide elements (9) and a pin (6) which is guided in these guide elements (9), the guide elements (9) are arranged on the stern hull part (1), while pins (6) are provided on the foredeck (3) or the other way around. 909839/0 255