KR20090079630A - Assembly Line System continuous of Hul - Google Patents

Abstract

A continuous assembly method of a hull is provided to shorten a construction period of a hull to the maximum by maximizing the productivity of an assembly process of a hull, to cut down the transportation cost remarkably by excluding the necessity of assembling a large-sized block in a separate assembly place and carrying, to maximize the output without constructing an additional dock by increasing and decreasing the number of assembly processes of a hull and controlling a construction period of a hull and to cut down the cost simultaneously, to apply to any types of construction, and to reduce the waste of manpower caused by movement and rearrangement of workers and to improve work efficiency, quality and productivity by making workers perform same works only in the appointed place. A continuous assembly method of a hull comprises the steps of assembling many unit blocks into a PE block in a PE yard(S1), installing a skid line 2.5~3 times as long as the length of a hull on a dock or land construction yard(S2), and after lifting up the PE block with a dock crane installed at a dock or land construction line and keel-laying on the skid line, attaching and welding another PE blocks to the front and the rear of the PE block and assembling into a large-sized hull block(S3), transferring a hull assembled with the large-sized hull block to a post-process of a dock or land construction line along the skid line using a super heavy cargo carrier(S4), and after completing a hull by attaching and welding the other PE blocks to the front and the rear of the large-sized hull block transferred to the post-process of the dock or land construction line, installing an intermediate gate and putting seawater in the dock, and then launching in case of dock construction, and transferring to a submerged barge, and then launching in case of land construction(S5).

Description

Assembly Line System continuous of Hul

The present invention relates to a continuous assembly method of the hull,

The assembly method of the hull, the invention relates to a continuous assembly method of the hull in which the drying cycle of the hull is minimized by adopting the continuous assembly method of the hull of the present invention configuration consisting of steps S1 to S5;

In the drying yard in the above step, the ship drying is carried out in accordance with the scheduled construction period of the ship's hull on a relatively long skidline, the docking stage is one to three divided stages of the SS1 to SS3 stage, the work stage is SS1 to SS4 in the land drying Position the Keel Laying blocks with one to four split stages of the stage,

The pore block is gradually enlarged while flowing along the skidline to complete the hull, and the hull conveying method is a continuous assembly method of the hull of the hull of the configuration that is continuously pushed forward by the super-heavyweight conveying device installed on the skidline to be.

As shown in Figure 4,

In general, the hull drying method of the prior art, the hull at the hull factory 70 of the shipyard

After manufacturing the 10 into a plurality of unit blocks 45 through the preceding design and the preceding painting work, and transported to the PE sheet 40 around the dock 20,

The dock crane 60 has a size enough to lift the unit block 45, which is a plurality of small blocks, respectively, and performs a preliminary mounting operation (PE), and the ship 20 is mounted in order in the dock 20 to mount the hull 10. After completion, the seawater is put into the dock 20 and the hull 10 is launched.

Such a construction method is very low dock turnover, which is the core of shipbuilding competitiveness, takes a long period of construction of the hull, there is a problem that the cost increases due to the construction of additional docks.

That is, the method of drying the hull 10 moves the plurality of unit blocks 45, which are large enough to be lifted by the dock crane 60, to the workroom 21, which is a fixed workshop, by the dock crane 60. After that, as the worker moves in one day, a plurality of unit blocks 45 are assembled by the LOT drying method to assemble one by one,

In particular, the period of drying one hull usually takes 90 to 100 days, resulting in a decrease in productivity due to drying only four hulls per year;

By assembling while the worker moves as described above, the waste of manpower caused by the repositioning of the worker was generated;

As the worker simultaneously performs the assembly work of the unit block 45 corresponding to the stern of the hull and the different parts of the bow portion, the work efficiency is deteriorated and the quality and productivity are deteriorated;

When assembling the hull, the workability is reduced by temporarily floating and transporting the hull 10 corresponding to the stern and the bow in the ultra-high load state on the water by the FLOATING method, and the above Some problems, such as a part of the hull 10 is broken.

Therefore, shipyards are researching at various angles to increase dock turnover.

As a prior art for solving this, as shown in FIG.

The size of the block may be increased. As a method of increasing the size of the small block, a large block having a plurality of unit blocks 45 assembled in a separate assembly place 80 which is a block land assembly place of the hull 10 ( 44) It is common to work with a large number of land equipment as a mega block (43: Mega Block) of 3000 tons,

The completed Mega Block 43 is transported to the dock 20 using pants and offshore cranes, and the respective Mega Blocks 43 are placed in the work rooms 1, 2 (21, 22) in the dock. After loading,

The megablocks 43 are each enlarged to adopt the assembly method of the hull through the enlargement of the block to be launched after completing the hull 10, the semi-tandem (SEMI TANDEM) that the hull is repeatedly dried in the same dock (20) By using the method, the period for building one hull is shortened to 40 to 50 days, and eight ships are launched per year.

However, the semi-tandem method of the prior art as described above is also composed of a LOT production method in which each worker moves the Mega Blocks (43: Mega Block) transferred as described above and assembles them.

Manpower was wasted due to the worker's repositioning, and the worker performed the assembly work of the megablocks 43 corresponding to the different parts of the hull, the ship, and the fore part of the hull simultaneously. Productivity has been reduced;

In particular, in a separate assembly place (80), a block land assembly site having a poor working environment, a plurality of large blocks (44) in a state in which a plurality of unit blocks (45) are assembled are mega blocks (43 Mega Blocks) of 3000 tons. By assembling with a large land equipment, there is a problem that quality and productivity is lowered;

As the mega block 43 assembled at the assembly place 80 is crunched into the dock 20 using pants and offshore cranes, the marine transportation cost and facility investment cost are excessively consumed, thereby degrading economic efficiency and workability. and;

Many problems, such as a long period of time to manufacture the hull 10 is usually 40 to 50 days has occurred.

The present invention has been made to solve the above disadvantages of the prior art,

Maximize the productivity of the assembly process of the hull as much as possible to shorten the drying cycle of the hull as much as possible, and the large sized block does not need to be assembled and transported in a separate assembly place, the transportation cost is greatly reduced;

By increasing and decreasing the number of hull assembly processes, the ship's drying cycle can be arbitrarily controlled, maximizing production and reducing costs without additional dock construction.

It can be applied to any of the dock drying method and the land drying method;

An object of the present invention is to provide a continuous assembly method of the hull of the configuration that improves the work efficiency, quality, and productivity by reducing the waste of manpower according to the repositioning of the worker, the operator performs only the same type of work in a fixed place. And a technical problem to be solved by the present invention.

Of the present invention configuration,

S1 step of assembling a plurality of unit blocks in a PE sheet PE block;

S2 step of installing a skid line 2.5 to 3 times the length of the hull in the dock or onshore dry yard;

Step S3 of lifting the PE block into a dock crane installed in a dock or a land drying line and killing it on a skid line, and then attaching and welding another PE block before and after the PE block to assemble the large hull block;

A step S4 of transferring the hull assembled with the large hull block to a post process of a dock or land drying line along a skid line using a super-heavy weight conveying apparatus;

Before and after the large hull block 41 transferred to the dock or the land drying line after the step, after mounting and welding another large hull block to complete the hull,

In the dock drying method, after installing the intermediate gate and launching the sea water into the dock, the land drying method is transferred to the diving pants, launching; To solve the above problems by providing a continuous assembly method of the hull.

Providing a continuous assembly method of the hull of the present invention;

Maximize the productivity of the assembly process of the hull as much as possible to shorten the drying cycle of the hull as much as possible, and the large sized block does not need to be assembled and transported in a separate assembly place, the transportation cost is greatly reduced;

By increasing and reducing the number of hull assembly processes, the drying cycle of the hull can be arbitrarily controlled, thereby maximizing production and reducing costs without additional dock construction.

It can be applied to any of the dock drying method and the land drying method;

It is a very useful invention that reduces the waste of manpower due to the relocation of the worker, and also improves the work efficiency, quality, and productivity by performing only the same kind of work at the designated place.

Hereinafter, the continuous assembly method of the hull of the present invention will be described in detail by the accompanying drawings.

1 is a process chart for the continuous assembly method of the hull of the present invention,

Figure 2 is a schematic diagram showing the assembly state of the hull by the dock drying method according to the present invention,

Figure 3 is a schematic diagram showing the assembly state of the hull by the land drying method according to the present invention.

As shown in Figure 1;

The continuous assembly method of the hull of the present invention is composed of the following steps S1 to S5, and the steps S3 to S5 are continuously repeated.

S1 step;

Assembling a plurality of unit blocks 45 in the PE sheet 40 into PE blocks 42

S2 step;

Installing the skid line 50 in the dock or onshore dry yards 20 and 30 2.5 to 3 times the hull length

S3 step;

The PE block 42 is lifted by a dock crane installed in a dock or a land drying line, and then killed on the skid line 50, and then other PE blocks 42a and 42b are mounted before and after the PE block 42. Welding and assembling the large hull block 41

S4 step;

Transporting the hull assembled with the large hull block 41 to a post process of a dock or land drying line along the skid line 50 using an ultra-heavy weight conveying device;

S5 step;

After completion of the hull 10 by attaching and welding another PE block 41c, 42d, 42e, 42f before and after the large hull block 41 transferred to the dock or the land drying line after the process,

In the dock drying method, after installing the intermediate gate 24, the water is put into the dock 20 to launch, and in the land drying method, transferring to the diving pants, launching; It consists of.

The step S1;

Unit block of the hull is a step of assembling a plurality of unit blocks 45 of the 75 to 200 ton weight PE block 42 of the 300 to 800 ton class weight in the PE assembly of the land assembly site.

The step S2;

In order to transfer the PE block 42 of 300 to 800 ton weight, which is conveyed from the PE field 40, to the dock or the land drying yard 20, 30, which is the ship's drying field, the skid line 50 is hulled on the drying yard. 2.5 to 3 times the length of the installation step,

For example, if the hull is 300M in length, the skidline is installed at 750M for intermediate gate and dock construction and 900M for land construction.

As described above, the configuration to install the skid line 2.5 to 3 times the length of the hull,

In order to determine the position of the keel laying blocks by dividing the work stage into three dock drying operations and four land drying operations according to the drying cycle of the ships on the 2.5 to 3 times the skid line.

The step S3;

The assembled PE block 42 of the step S1, respectively, by the dock crane installed in the drying line, each of the killing on the skidline 50, which is a transport device consisting of a plurality of rows, and then the front of the PE block 42 , The other PE blocks 42a and 42b on the rear are mounted and welded to the large hull block 41 in a continuous and assembled step.

The step S4;

As a step of continuously conveying the hull assembled with the large hull block 41 to the post-process work stage along the skid line 50 by using a super-heavy weight transfer device,

On the skid line 50 consisting of a plurality of rows of transportation devices of the step S3, the air pad sliding system (AIRPAD SLIDING SYSTEM), the transporter (TRANSPORTER), the bogie system, the winch (WINCH) It is a step that is continuously transferred to the post process work stage.

The step S5,

As described above, another PE block 42c, 42d, 42d, 42e, and 42f are sequentially attached and welded to the front and rear surfaces of the large hull block 41 transferred to the post-process work stage to complete the hull. as,

In the dock drying method, after the final dried hull is provided with an intermediate gate 24 for inflow of seawater or blocking of seawater between the dock workrooms 2 (22) and 3 (23), the dock workroom 3 Put the seawater in (23) to open the front gate (25) to launch the completed hull (10),

In the land drying method, the hull 10 finally dried as described above moves the hull 10 onto the diving pants by a super-heavy weight conveying device while the diving pants fold in the longitudinal direction to adjust the ballast. This is the step to launch.

As shown in Figure 2,

The drying of the dockline of the steps S3 to S5 is divided into 1 to 3 division stages of the SS1 to SS3 stages, and is continuously divided and progressed in the work rooms 1,2,3 (21, 22, 23), Is constructed in accordance with the drying cycle of the hull;

1 to 3 divided stages of the SS1 to SS3 step, as one preferred embodiment,

In the work room 1 (21), the other PE blocks 42a and 42b are mounted and welded on the front and back of the PE block 42 corresponding to the midship of the hull, respectively, assembled into a large hull block 41 and transferred to the work room 2. An SS1 stage, which is a stage;

Another PE block corresponding to the midship and stern of the hull chelated on the skidline of the workroom 2 by the dock crane 60 in the front and rear of the large hull block 41 in the workroom 2 (22). An SS2 stage, which is a stage for attaching and welding the 42c and 42d to the work room 3;

In the front room of the another PE block 42c, 42d of the second stage SS2, which is mounted and welded in the work room 3 (23), on the skid line of the room 3 by the dock crane Attach and weld the PE block 42e corresponding to the bow of the chelated hull, and install and weld the PE block 42f corresponding to the steering compartment components on top of the PE block 42d corresponding to the stern. To SS3 stage which is a stage where the drying of the hull is completed; Consist of,

Each PE block 42, 42a, 42b is mounted and welded in the work room 1, and the other PE blocks 42c, 42d, 42e, 42f are sequentially mounted on the front and rear surfaces of the large hull block 41. Work being welded,

Dividing stage of the construction in which the drying cycle of the hull 10 is shortened to 1/3 by dividing into three stages of SS1 to SS3 in the work rooms 1,2,3 (21,22,23). It is composed of construction methods.

With the above configuration, it is possible to shorten the drying cycle of the hull conventionally takes 90 days to 1/3 of 30 days, which is one preferred embodiment based on the total length of the dock as the actual dockable dock length of 750M;

For example, when the ship's drying cycle is shortened to 15 days, the total length of the dock is 1500M, and the stage is divided into six stages, divided at each workshop, and simultaneously mounted and welded. It consists of a split stage method that allows theoretical logic to be shortened to 6 people and 15 days.

As shown in Figure 3,

The construction of the land line of the steps S3 to S5 is divided into 1 to 4 division stages of the SS1 to SS4 stages, and is continuously divided in the work rooms 1,2,3,4 (31,32,33,34). , As it proceeds, is made to conform to the drying cycle of the hull;

1 to 4 division stages of the SS1 to SS4 step, as one preferred embodiment,

In the work room 1 (31), the other PE blocks 42a and 42b are mounted and welded on the front and back of the PE block 42 corresponding to the midship part of the hull, respectively, assembled into a large hull block 41 and transferred to the work room 2. An SS1 stage, which is a stage;

Another PE block corresponding to the midship and stern of the hull chelated on the skidline of the workroom 2 by the dock crane 60 at the front and rear of the large hull block 41 in the workroom 2 (32). An SS2 stage, which is a stage for attaching and welding the 42c and 42d to the work room 3;

The PE block 42c in which the second PE blocks 42c and 42d of the SS2 stage are mounted and welded in the workroom 3 (23) corresponds to the shipboard portion killed on the skidline of the workroom 3 by the dock crane. SS3, which is a stage to be mounted and welded to the PE block 42g, and the PE block 42f corresponding to the steering chamber component is mounted on the upper part of the PE block 42d corresponding to the stern portion and transferred to the workroom 4. A stage;

PE block corresponding to the bow portion of the hull chelated on the skidline of the workshop 4 by the dock crane on the front surface of the PE block 42g corresponding to the ship portion of the hull of the SS3 stage in the workshop 4 (34) ( An SS4 stage which is a stage where the hull 10 is completed by attaching and welding 42e); Consist of

In PE 1, each PE block 42, 42a, 42b is mounted and welded on the front and rear of the large hull block 41, and the other PE blocks 42c, 42d, 42e, 42f, 42g are sequentially The work of mounting and welding is divided into four stages of SS1 to SS4 in the work rooms 1,2,3,4 (31,32,33,34) to perform the mounting and welding work. It is comprised by the split stage method of the structure shortened to 1/4.

With the above configuration, it is possible to shorten the drying cycle of the hull conventionally takes 90 days to 1/4 of 22.5 days,

This is also one preferred embodiment, based on the length of the land dry yard, which can be actually constructed with the total length of the land dry yard to 1,000 M;

For example, when the ship's drying time is shortened to 20 days, the total length of the land drying yard is divided into 1,250M and 5 parts of 1 to 5 workshops, which are simultaneously mounted and welded at each workshop. It consists of a split stage method that can be shortened to 20 days with a drying cycle of 1/5.

Continuous assembly method of the hull using the skid line of the present invention configuration consisting of the steps S1 to S5 as described above;

By adopting the SS1 to SS4 split stage method;

The present invention provides a configuration in which the drying cycle of the hull is shortened as much as 22.5 days to 30 days;

It is not necessary to assemble and transport a large block of large size in a separate assembly place, which greatly reduces the transportation cost. Configuration to maximize production and reduce costs without construction;

It can be applied to any one of the dock drying method and the land drying method.

It consists of a continuous assembly method of the hull, which reduces the manpower waste caused by the worker's repositioning and improves the work efficiency, quality, and productivity by performing only the same kind of work at the designated place.

 In the above configuration of the present invention, if necessary;

The completed hull of the step S5, in the dock drying method, after launching the hull 10, closes the front gate 25, drains the water in the dock 20, and repairs the banmul and remove the intermediate gate 24, The hull of the post-process may be advanced and transported along the skid line 50 by using an ultra-heavy weight conveying device;

When the completed hull 10 of the step S5, in the case of parallel drying of the two hulls in the dock drying method, after installing the intermediate gate 24 to open the front door 25 to launch the hull before and after launching To reduce waste in manpower deployment, two ships may be cross-launched for a period of time without launching them simultaneously;

The stage dividing operation may include one to two stage dividing methods of SS1 to SS2 in the case of dock drying, and one to three stage dividing methods of SS1 to SS3 in the case of land drying;

The hull, which is a target object by the continuous assembly method of the present invention, is one preferred embodiment.

The above structure of the present invention can also be applied to other objects in an ultra-heavy load state, in which the target object by the continuous assembly method of the present invention is not the hull.

1 is a process chart for the continuous assembly method of the hull of the present invention,

Figure 2 is a schematic diagram showing the assembled state of the hull by the dock drying method according to the present invention,

Figure 3 is a schematic diagram showing the assembled state of the hull by the land drying method according to the present invention,

4 and 5 are schematic views showing a method of drying the hull of the prior art.

<Explanation of symbols for the main parts of the drawings>

10 hull (ship)

20 Dock Drying Yards

21,22,23 Workshop 1,2,3 24 Intermediate gate

25 forward sluice

30 Athletics Dry Yards

31,32,33,34 Workshop 1,2,3,4

40 PE sheets

41 large hull block

42,42a, 42b, 42c, 42d, 42e, 42f, 42g PE block

43 Megablock 44 Large Block

45 unit blocks

50 skidlines

60 dock crane

70 Huck Plant

80 Assembly place

Claims (7)

Assembly method of hull, hull continuous assembly method characterized in that consisting of the following steps S1 to S5 S1 step; Assembling a plurality of unit blocks 45 in the PE sheet 40 into PE blocks 42 S2 step; Installing the skid line 50 in the dock or onshore dry yards 20 and 30 2.5 to 3 times the hull length S3 step; The PE block 42 is lifted by a dock crane installed in a dock or a land drying line, and then killed on the skid line 50, and then other PE blocks 42a and 42b are mounted before and after the PE block 42. Welding and assembling the large hull block 41 S4 step; Transporting the hull assembled with the large hull block 41 to a post process of a dock or land drying line along the skid line 50 using an ultra-heavy weight conveying device; S5 step; Before and after the large hull block 41 transferred to the dock or onshore drying line, another PE block 41c, 42d, 42e, 42f is mounted and welded to complete the hull 10, and then the dock drying method. In the intermediate gate 24 is installed and the seawater is put into the dock (20) to launch, and in the land drying method transported to the diving pants, launching step According to claim 1, wherein each of the operations of the steps S3 to S5 are divided and carried out at the same time, Dock construction line consists of three split stage method, and land drying line consists of four split stage method hull continuous assembly method characterized in that. The method of claim 2, wherein the split stage method, In the case of the dock drying line, in the operation room 1 (21), the other PE blocks 42a and 42b are mounted and welded to the large hull block 41 on the front and rear surfaces of the PE block 42 corresponding to the midship portion of the hull. An SS1 stage which is a stage to be assembled and conveyed to the work room 2; Another PE block corresponding to the midship and stern of the hull chelated on the skidline of the workroom 2 by the dock crane 60 in the front and rear of the large hull block 41 in the workroom 2 (22). An SS2 stage, which is a stage for attaching and welding the 42c and 42d to the work room 3; In the front room of the another PE block 42c, 42d of the second stage SS2, which is mounted and welded in the work room 3 (23), on the skid line of the room 3 by the dock crane Attach and weld the PE block 42e corresponding to the bow of the chelated hull, and install and weld the PE block 42f corresponding to the steering compartment components on top of the PE block 42d corresponding to the stern. SS3 stage, which is a stage in which the drying of the hull is completed; It consists of In the case of the onshore drying line, the other PE blocks 42a and 42b are mounted and welded to the large hull block 41 on the front and rear surfaces of the PE block 42 corresponding to the midship portion of the hull in the work room 1 (31). An SS1 stage which is a stage to be assembled and conveyed to the work room 2; Another PE block corresponding to the midship and stern of the hull chelated on the skidline of the workroom 2 by the dock crane 60 at the front and rear of the large hull block 41 in the workroom 2 (32). An SS2 stage, which is a stage for attaching and welding the 42c and 42d to the work room 3; The PE block 42c in which the second PE blocks 42c and 42d of the SS2 stage are mounted and welded in the workroom 3 (23) corresponds to the shipboard portion killed on the skidline of the workroom 3 by the dock crane. SS3, which is a stage to be mounted and welded to the PE block 42g, and the PE block 42f corresponding to the steering chamber component is mounted on the upper part of the PE block 42d corresponding to the stern portion and transferred to the workroom 4. A stage; PE block corresponding to the bow portion of the hull chelated on the skid line of the workshop 4 by the dock crane on the front of the PE block 42g corresponding to the ship's portion of the hull of the SS3 stage in the workshop 4 (34) SS4 stage which is a stage which attaches and welds 42e, and ship body 10 is completed; Continuous assembly method of the hull characterized by consisting of. According to claim 1, wherein the ultra-light weight transfer device of the step S4, Continuous assembly method of hull, characterized by continuous transport by air pad sliding system, transporter, bogie system, winch. According to claim 1, wherein the method of launching after completion of the hull 10 of step S5, In the dock drying method, after the intermediate gate 24 is installed, the front hull 25 is opened to launch the completed hull 10; In the onshore drying method, the hull 10 is moored in the longitudinal direction to the inner wall to adjust the ballast while the hull 10 is carried over to the dive pants by the super-heavyweight conveying device is characterized in that the hull continuous assembly method.  The method according to claim 5, wherein after the hull 10 is launched in the dock drying method, the front gate 25 is closed, the water in the dock 20 is drained, the antagonist is maintained, and the intermediate gate 24 is removed. Continuous assembly method of the hull, characterized in that the hull 10 is moved forwards, along the skid line using a super-heavyweight conveying device. According to claim 5, In the case of parallel drying in the dock drying method, two chucks to reduce waste in the arrangement of manpower before and after launching when launching the hull 10 by opening the front gate after installing the intermediate gate (24). Continuous assembly method of the hull, characterized in that the cross-launching with a time difference one by one without launching at the same time.

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