KR20170044981A - Support tower and the operation method having screw jack integral hydraulic ram - Google Patents

Support tower and the operation method having screw jack integral hydraulic ram Download PDF

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Publication number
KR20170044981A
KR20170044981A KR1020150144769A KR20150144769A KR20170044981A KR 20170044981 A KR20170044981 A KR 20170044981A KR 1020150144769 A KR1020150144769 A KR 1020150144769A KR 20150144769 A KR20150144769 A KR 20150144769A KR 20170044981 A KR20170044981 A KR 20170044981A
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KR
South Korea
Prior art keywords
hydraulic
screw jack
hydraulic ram
support tower
ram
Prior art date
Application number
KR1020150144769A
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Korean (ko)
Inventor
권순도
김상준
김성엽
Original Assignee
대우조선해양 주식회사
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Application filed by 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020150144769A priority Critical patent/KR20170044981A/en
Publication of KR20170044981A publication Critical patent/KR20170044981A/en

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    • B63B9/00—
    • B63B9/06—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C5/00—Equipment usable both on slipways and in dry docks
    • B63C5/02—Stagings; Scaffolding; Shores or struts
    • B63C5/04—Bilge or keel blocks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The present invention is a structure in which a hydraulic ram is integrated with a screw jack so that a hydraulic ram comes into contact with a holding cap. When a hydraulic ram is slightly released from a holding cap, a load applied to the screw jack is removed, The present invention relates to a support tower provided with a ram-integrated screw jack, and more particularly, to a support tower provided with a ram-integrated screw jack, a screw jack provided on an upper portion of the support tower and a support cap mounted on an upper portion of the screw jack, A hydraulic ram is integrally installed and operating means for operating the hydraulic ram is installed on the side of the hydraulic ram.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support tower having a hydraulic ram integrated type screw jack,

[0001] The present invention relates to a support tower having a hydraulic ram integral type screw jack, and more particularly, to a structure in which a hydraulic ram is integrated with a screw jack so that a hydraulic ram abuts on a support cap. When the hydraulic ram is slightly released from a support cap, To a support tower having a hydraulic ram integrated type screw jack in which the screw jack can be easily operated by a force.

Generally, the ship is dried by cutting various materials such as steel plates and steel plates into appropriate shapes and then welding them.

In recent years, according to the trend of large-sized vessels, the drying process is shortened by short block drying and the drying time is greatly reduced.

That is, the ship is dried through a sub-assembly process for producing a small-sized block, a sub-assembly process for coupling several sub-assembled blocks together and a sub-assembling process for assembling the sub-assembled blocks together .

In such a block-type drying, the hull block is supported by a separate supporting structure against the floor of the workplace.

1, a structure for supporting the load of a conventional hull block includes a strut cap 51 for supporting a load by directly contacting an outer wall of the hull block, And a screw jack 55 coupled to the lower portion of the adjusting pipe 53 and adjustably varying the lift / lower by manual operation by an operator.

The upper and lower end portions of the adjustment pipe 53 are connected to each other via a support 53a or 53b to connect the strut cap 51 to the screw jack 55.

In this case, the strut cap 51 is formed on its upper surface with a contact surface 51a having a shape conforming to the shape of the outer wall of the hull block to be supported. The strut cap 51 is connected to the strut cap 51 and the screw jack 55) of a pipe-type cut-off rigid structure.

In addition, the screw jack 55 is a screw fastening structure, which corresponds to a structure in which a lifting operation is performed by varying the length of the screw when the handle is operated by an operator.

Accordingly, as shown in FIG. 2, the structure for supporting the conventional load is provided at a plurality of locations with respect to the outer wall 57 of the hull block, so that the load of the hull block can be firmly supported.

At this time, the screw jack 55 is connected to the lower portion of the screw jack 55 so as to be supported by the large upright structure 59 installed separately.

However, when the drying operation is completed in a state in which the load of the hull block is supported by using the support structure as described above, the dismantling work for the installed support structure must be performed. In this case, The screw jack 55 can not be lifted up by manual operation by the operator due to the frictional force accompanying the threaded portion.

Therefore, the disassembly operation for the conventional support structure has to be performed by cutting the adjustment pipe 53 connecting between the strut cap 51 and the screw jack 55.

As a result, since the conventional support structure requires the use of a gas torch during disassembly, it takes a long time to cut the adjustment pipe 53, and when the support structure is repeatedly used, the adjustment pipe 53 must be repeatedly connected and disconnected It is inevitable to be utilized in the form of disposable consumables, resulting in an economic loss as well as an increase in the number of working hours.

Particularly, in the supporting structure, since the adjusting pipe 53 is disposed on the upper part of the large standing upright structure 59, the cutting operation must be performed in a narrow space of high size during disassembly, thereby causing various diseases in the worker's musculoskeletal system There was a problem.

Korean Utility Model Publication No. 20-2013-0006767 (published on November 26, 2013)

Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a hydraulic control apparatus for an internal combustion engine, which is capable of reusing a hydraulic ram, The present invention also provides a support tower having a hydraulic ram integrated type screw jack and a method of operating the same, which can improve the convenience of work without requiring a cutting operation or the like.

According to an aspect of the present invention, there is provided a screw jack mounted on an upper portion of a support tower, wherein the screw jack is operated by hydraulic pressure so as to abut on a support cap of the outer shell of the ship, Hydraulic ram may be installed.

The hydraulic ram may be integrally mounted on the upper portion of the screw jack.

A connecting member may be installed on the upper portion of the screw jack to integrate the hydraulic ram into the screw jack.

The hydraulic ram is provided with an operating means for operating the hydraulic ram. The operating means includes a hydraulic pump for operating the hydraulic ram, a hydraulic oil tank for supplying the hydraulic fluid to the hydraulic pump .

The hydraulic line may be provided with a check valve and a manual lock valve to control the flow of hydraulic fluid discharged from the hydraulic oil tank.

The hydraulic line may be provided with a pressure gauge to measure the pressure of the hydraulic fluid discharged from the hydraulic oil tank.

And a controller electrically connected to the operating means to control the operation of the operating means and the operating state of the hydraulic ram.

The controller may include an operation unit operable to operate the hydraulic ram to control operation of the hydraulic ram, and a monitoring unit operable to monitor an operation state of the hydraulic ram.

The hydraulic ram may be installed as a single acting cylinder type.

According to another aspect of the present invention, there is provided a method of installing a support tower using a hydraulic ram integrated type screw jack, comprising the steps of: providing a support tower on which a screw jack integrated with a hydraulic ram is vertically disposed below a support cap A step of moving the hydraulic ram by pulling out the hydraulic ram by operating the hydraulic ram with the hand pump in a state where the manual lock valve of the operating means is locked, and a step of lifting the screw jack in a state where the hydraulic ram is fixed, And supporting the block loads of the outer shell of the ship by installing the support towers.

In the step of operating the hydraulic ram by operating the hydraulic pump to fix the hydraulic ram, the operation oil is supplied from the hydraulic oil tank by the check valve installed on the hydraulic line of the operation means and is not returned to the hydraulic oil tank.

In the step of raising the screw jack so as to contact with the strut cap of the outer shell of the ship, the block load is applied after the block assembly is completed, and the screw jack can not be operated by the force.

According to another aspect of the present invention, there is provided a working method for removing a support tower using a hydraulic ram integrated type screw jack, comprising the steps of raising the screw jack so that the hydraulic ram abuts against the support cap of the outer shell of the hull, The hydraulic ram is automatically drawn by its own weight and external load to remove an external load applied to the screw jack, and a step of lowering the screw jack to remove the support tower .

In the step of lowering the screw jack to remove the support tower, the screw jack from which the external load is removed can be easily manipulated by the human force.

As described above, according to the support tower using the hydraulic ram integrated type screw jack according to the present invention, in order to assemble the block and the block in the manufacturing process of the ship, the support cap, The hydraulic ram is integrally mounted on the upper portion of the installed screw jack instead of the pipe type adjusting pipe as in the prior art, thereby reducing the material cost and personnel cost for manufacturing the adjusting pipe by replacing the consumable pipe.

In addition, since the hydraulic ram operated by the operating means is integrated with the screw jack, the present invention eliminates the need for the adjustment pipe cutting operation as in the prior art, thereby minimizing the work time and minimizing the exposure frequency of the complicated operation. It is possible to maximize the efficiency of the work because it is unnecessary to carry out any additional work such as the installation of a protective cover for preventing falling and scattering of the work.

1 is a front view showing a structure for supporting a load of a conventional hull block.
2 is a perspective view showing a state of use of a conventional support structure.
3 is a front view for installing a support tower using a hydraulic ram integrated type screw jack according to the present invention.
4 is a front view showing a support tower using a hydraulic ram integrated type screw jack according to the present invention.
5 is a front view showing a hydraulic ram of a support tower using a hydraulic ram integrated type screw jack according to the present invention.
FIG. 6 is a flowchart illustrating a hydraulic ram and an operation means of a support tower using a hydraulic ram integrated type screw jack according to the present invention.
7 is a flowchart illustrating a controller of a support tower using a hydraulic ram integrated type screw jack according to the present invention.
8 is a process diagram illustrating a work method for installing a support tower using a hydraulic ram integrated type screw jack according to the present invention.
9 is a block diagram showing a working method for installing the support tower according to FIG.
10 is a process diagram illustrating a working method for removing a support tower using a hydraulic ram integrated type screw jack according to the present invention.
11 is a block diagram showing a working method for demolishing the support tower according to FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a front view for installing a support tower using a hydraulic ram integrated type screw jack according to the present invention, FIG. 4 is a front view showing a support tower using a hydraulic ram integrated type screw jack according to the present invention, 6 is a flowchart showing a hydraulic ram and an operation means of a support tower using a hydraulic ram integrated type screw jack according to the present invention, and FIG. 7 is a flowchart showing a hydraulic ram of a support tower using a hydraulic ram integrated type screw jack according to the present invention. FIG. 8 is a flowchart illustrating a method for installing a support tower using a hydraulic ram integrated type screw jack according to the present invention, and FIG. 8 is a flowchart illustrating a method of operating a support tower using a hydraulic ram integrated type screw jack according to the present invention. FIG. 9 is a block diagram showing a working method for installing a support tower according to FIG. 8, RAM is a process chart showing an operation method for dismantling a tower supported by a one-piece screw jack, 11 is a block diagram showing an operation process for dismantling the support tower 10 according to Fig.

3 to 7, the support tower using the hydraulic ram integrated type screw jack according to the present invention is provided with a screw jack (not shown) for installing and dismounting the support tower 200 on the upper part of the support tower 200, A hydraulic ram 400 for mounting a support tower 200 in contact with a strut cap 110 installed on a heavy shipboard sheathing plate 100 on the upper part of the screw jack 300, And installed.

The screw jack 300 can stably support the support tower 200 by supporting the block of the hull outer plate 100 which is heavy.

The screw jack 300 described above is a widely used jack structure, and a detailed description thereof will be omitted.

The hydraulic ram (400) is integrally installed on the upper part of the screw jack (300).

In other words, since the hydraulic ram 400 is integrally installed on the upper portion of the screw jack 300, the non-compressible fluid is used to fill the entire space, so that the volume is not changed, and the supporting ability of the external load is excellent .

In addition, the integral type of the hydraulic ram (400) is able to support the force due to the uniform pressure of the fluid as a whole, thereby improving the structural safety of the support tower (200).

A connecting member 410 is installed on the upper part of the screw jack 300 to integrate the hydraulic ram 400 into the screw jack 300 and to fix the hydraulic ram 400.

The hydraulic ram 400 is provided at its side with operating means 500 for operating the hydraulic ram 400.

At this time, the actuating means 500 is installed in the hydraulic ram 400 as an integrated module.

The operating unit 500 includes a hand pump 510 installed on the hydraulic line 530 to operate the hydraulic ram 400 and a hand pump 510 connected to the hand pump 510 via a hydraulic line 530, 510 to supply the operating fluid to the working fluid tank 520.

The operating means 500 is provided with a check valve 540 and a manual lock valve 550 to control the flow of hydraulic oil discharged from the hydraulic oil tank 520 to the hydraulic line 530.

That is, when the support tower 200 is to be installed on the outside shell 100, the hydraulic ram 400 is operated by the hand pump 510 while the manual lock valve 550 is closed, So that the support tower 200 is installed on the support cap 110.

At this time, although the hydraulic oil is supplied by the check valve 540, the hydraulic oil is not returned to the hydraulic oil tank 520.

A pressure gauge 560 is installed on the hydraulic line 530 to measure the pressure of the hydraulic fluid discharged from the hydraulic oil tank 520.

Accordingly, the pressure of the operating fluid being discharged while being discharged from the working oil tank 520 can be easily measured by the pressure gauge 560, so that the support load of the support tower 200 can be easily grasped.

In addition, since the hydraulic ram 400 is integrated with the screw jack 300 and the hydraulic oil discharged from the hydraulic oil tank 520 is used as a liquid, the flow of the hydraulic oil is smooth and the smooth operation of the hydraulic ram 400 .

Meanwhile, the hydraulic line 530 is installed inside the hydraulic ram 400 so that the hydraulic line 530 is not exposed to the outside.

A controller 600 electrically connected to the actuating means 500 and capable of controlling the operation of the actuating means 500 and the operating state of the hydraulic ram is provided.

In this case, the present invention uses an operating means 500 consisting of a hand pump 510 which is operated manually to operate the hydraulic ram 400, and the controller 600 is an essential component of the present invention But it can be used as an option (additional function).

The controller 600 includes a controller 610 for controlling the operation of the hydraulic ram 400 by operating the actuating means 500 and a controller 610 for controlling the operation of the hydraulic ram 400 according to the operation of the actuating means 500. [ And a monitoring unit 620 that can monitor and check the status.

In this way, the operation of the operation unit 500 and the operation state of the hydraulic ram 400 can be efficiently controlled by the control unit 610, and monitoring of the support load can be performed through the monitoring unit 620 The safety of the support tower 200 can be maximized.

In order to monitor the monitoring unit 620, it is possible to log the pressure only by the configuration of the battery power without a special external power source, and the stored data can be checked later.

That is, it is possible to confirm the change with time (according to the progress of the work process) of the external load through the pressure logging, and it is possible to confirm whether the support tower 200 normally supports the load through the pressure logging.

The hydraulic ram (400) integrated on the top of the screw jack (300) is installed as a single acting cylinder type.

The hydraulic ram (400) is hermetically sealed to prevent external foreign matter from entering, and the operation of the hydraulic ram is smoothly performed by the function of lubrication by operating oil, so that support and release of the load can be smoothly performed.

8 to 9, a method for installing a support tower using a hydraulic ram integrated type screw jack according to the present invention includes a support cap 110 installed in advance on a hull outer plate 100, A step S110 of moving the support tower 200 in the vertical direction of the hydraulic ram 400 by operating the hydraulic ram 400 with the hand pump 510 to fix the hydraulic ram 400, The screw jack 300 is lifted up while the hydraulic ram 400 is fixed and abuts against the column cap 110 of the outer shell 100 to support the block load of the outer shell 100 and the support tower 200 (Step S120).

A screw jack 300 is installed at an upper portion of the support tower 200 and a lower portion of the upper portion of the screw jack 300 is installed in a step S100 of moving the support tower 200 in the vertical direction of the strut cap 110. [ So that the hydraulic ram 400 can be brought into contact with the support cap 110.

The hydraulic ram 400 is operated by the hand pump 510 while the manual lock valve 550 of the actuating means 500 is locked in the step S110 of fixing the hydraulic ram 400. [

In the step S110 in which the hydraulic ram 400 is operated by the hand pump 510 and the hydraulic ram 400 is fixed to the hydraulic ram 400, The hydraulic oil is supplied from the hydraulic oil tank 520 by the valve 540 and the hydraulic oil is not returned to the hydraulic oil tank 520.

In the step S120 of installing the support tower 200 by raising the screw jack 300 so as to abut the support cap 110 of the outer shell 100 of the ship body, The block load of the outer shell 100 of the ship is applied and the screw jack 300 can not be operated by the force.

10 to 11, a method for removing a support tower using a hydraulic ram integrated type screw jack according to the present invention is a method for lifting a screw jack 300 according to the above installation method, Is released from the manual lock valve 550 installed on the hydraulic line 530 while the support tower 200 is installed with the support tower 200 in contact with the strut cap 110 of the outer shell 100, The external force applied to the screw jack 300 is removed and the screw jack 300 is lowered to remove the external load applied to the screw cap 300 from the holding cap 110 And removing the support tower 200 (S210).

When the manual lock valve 550 is released in the step S200 of removing the external load applied to the screw jack 300, the hydraulic ram 400 is automatically drawn by its own weight and external load, The external load applied to the hydraulic cylinder 300 is removed and the hydraulic ram 400 is separated from the support cap 110.

In the step S210 of removing the support tower 200 by lowering the screw jack 300, the screw jack 300, in which the hydraulic ram 400 is automatically drawn and the external load is removed, The screw jack 300 can be lowered and the support tower 200 can be removed.

As described above, an operation state of the support tower having the hydraulic ram integrated type screw jack according to the present invention and its working method will be described below.

First, when the manual lock valve 550 is locked, the hydraulic ram 400 is drawn out to the maximum extent using the hand pump 510.

At this time, the hydraulic oil supplied to the hydraulic oil tank 520 is blocked by the check valve 540 and the manual lock valve 550.

The hydraulic ram 400 is fixed in the extended state and the screw cap 300 is operated in a state where the hydraulic ram 400 is fixed so that the support cap 110 and the hydraulic ram 400 are in contact with each other The support tower 200 is installed.

6, when the block assembly of the outer shell 100 is completed and the support tower 200 is to be dismantled, the return line of the hydraulic line 530 connected to the hydraulic ram 400 The manual lock valve 550 is opened to return the operating fluid to the working oil tank 520.

Then, the hydraulic ram 400 descends downward due to its own weight, and is naturally drawn.

Accordingly, the hydraulic ram 400 is separated from the strut cap 110, and the load is removed, so that the screw jack 300 can be easily manipulated by the force.

That is, since the hydraulic ram 400, which replaces the adjustment pipe, is integrally provided on the screw jack 300 as in the prior art, the load applied to the support tower 200 can be easily removed during the removal of the support tower 200 So that the screw jack 300 can be easily operated by a human force.

In addition, since the hydraulic ram 400 is integrally installed in the screw jack 300, it is not necessary to separately manage the hydraulic ram 400 once installed, thereby improving convenience in use.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and any person skilled in the art can make various modifications without departing from the gist of the present invention. It is to be understood that such changes and modifications are intended to fall within the scope of the appended claims.

100: Hull shell plate 110: Holding cap
200: Support Tower 300: Screw jack
400: hydraulic ram 410: connecting member
500: operating means 510: hand pump
520: hydraulic oil tank 530: hydraulic line
540: Check valve 550: Manual lock valve
560: Manometer 600: Controller
610: Operation section 620: Monitoring section

Claims (12)

In a support tower provided with a screw jack for supporting the outer shell of a ship,
A screw jack provided on an upper portion of the support tower,
And a hydraulic ram, which is operated by hydraulic pressure, is installed on the upper part of the screw jack so as to abut against the column cap of the outer shell of the ship so that the support tower can be installed. The method according to claim 1,
Wherein the hydraulic ram is integrally installed on an upper portion of the screw jack. 3. The method of claim 2,
And a connecting member is installed on the upper portion of the screw jack to integrate the hydraulic ram into the screw jack. The method according to claim 1,
The hydraulic ram is provided with an operating means for operating the hydraulic ram. The operating means includes a hydraulic pump for operating the hydraulic ram, a hydraulic oil tank for supplying the hydraulic fluid to the hydraulic pump And the support tower is provided with a hydraulic ram integrated type screw jack. 5. The method of claim 4,
Wherein the hydraulic line is provided with a check valve and a manual lock valve so as to control the flow of hydraulic fluid discharged from the hydraulic oil tank. 5. The method of claim 4,
And a pressure gauge is installed on the hydraulic line so that the pressure of the hydraulic fluid discharged from the hydraulic oil tank can be measured. 5. The method of claim 4,
Wherein a controller is provided, which is electrically connected to the operating means to control the operation of the operating means and the operating state of the hydraulic ram. 8. The method of claim 7,
The controller includes a hydraulic ram integral type screw jack including an operation unit that can operate the operation means to control operation of the hydraulic ram, and a monitoring unit that can monitor the operation state of the hydraulic ram. The method according to claim 1,
And the hydraulic ram is installed in a single-acting cylinder type. A working method for installing a support tower using a hydraulic ram integral type screw jack,
Moving a support tower on which a screw jack integrated with a hydraulic ram is installed in a vertical direction of a strut cap installed on the outer shell of the ship;
Moving the manual lock valve of the operating means from the locked state by operating the hydraulic ram with the hand pump to fix the hydraulic ram; And
Installing the support tower to support the block load of the outer shell of the ship by raising the screw jack in a state where the hydraulic ram is fixed and abutting against the column cap of the outer shell of the ship;
And a hydraulic ram integrated screw jack. 11. The method of claim 10,
Wherein the step of operating the hydraulic ram with the hydraulic pump to fix the hydraulic ram includes the steps of supplying the hydraulic oil from the hydraulic oil tank by the check valve provided on the hydraulic line of the hydraulic oil hydraulic line and returning hydraulic oil to the hydraulic oil tank A method of working a support tower with a ram integrated screw jack. 11. The method of claim 10,
Wherein the step of raising the screw jack to abut against the column cap of the outer shell of the ship to provide a support tower is such that a block load is applied to the screw jack after the completion of block assembly of the outer shell of the ship, Method of working a support tower with integral screw jack.
KR1020150144769A 2015-10-16 2015-10-16 Support tower and the operation method having screw jack integral hydraulic ram KR20170044981A (en)

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KR1020150144769A KR20170044981A (en) 2015-10-16 2015-10-16 Support tower and the operation method having screw jack integral hydraulic ram

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Application Number Priority Date Filing Date Title
KR1020150144769A KR20170044981A (en) 2015-10-16 2015-10-16 Support tower and the operation method having screw jack integral hydraulic ram

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KR20170044981A true KR20170044981A (en) 2017-04-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200046973A (en) 2018-10-26 2020-05-07 주식회사 브랜드뉴 curved surface contrast block position alignment device for welding having curved surface contrast block fixed structure
KR20200046975A (en) 2018-10-26 2020-05-07 주식회사 브랜드뉴 Position alignment device for welding ship block member
KR20200054735A (en) 2018-11-12 2020-05-20 주식회사 브랜드뉴 Ship block assembly position alignment device for ship block assembly welding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200046973A (en) 2018-10-26 2020-05-07 주식회사 브랜드뉴 curved surface contrast block position alignment device for welding having curved surface contrast block fixed structure
KR20200046975A (en) 2018-10-26 2020-05-07 주식회사 브랜드뉴 Position alignment device for welding ship block member
KR20200054735A (en) 2018-11-12 2020-05-20 주식회사 브랜드뉴 Ship block assembly position alignment device for ship block assembly welding

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