KR20150052459A

KR20150052459A - Thermal Spray Aluminium apparatus for H-Beam

Info

Publication number: KR20150052459A
Application number: KR1020130133801A
Authority: KR
Inventors: 최군환; 권영인; 이대희; 이태로
Original assignee: 현대중공업 주식회사
Priority date: 2013-11-05
Filing date: 2013-11-05
Publication date: 2015-05-14

Abstract

The present invention relates to an H-beam TSA coating apparatus and, more particularly, to an H-beam TSA coating apparatus, capable of automatically and uniformly coating TSA on the outer surface of an H-beam used as a reinforcement material or a frame like an offshore structure or a land plant structure. The H-beam TSA coating apparatus according to the embodiment of the present invention includes an H-beam support and rotating device (100), an X-axis straight transfer unit (200), a first transfer plate (300) which is mounted on the X-axis straight transfer unit (200), a Y-axis straight transfer unit (400), a second transfer plate (500) which is mounted on the Y-axis straight transfer unit (400), a fusion and spray TSA unit (600) which is mounted on the second transfer plate (500), a wire supply box (650), a wire feeding unit (670), and a compressed air supply line (710).

Description

The present invention relates to an H-beam TSA coating apparatus,

The present invention relates to an apparatus for coating a TSA on an H-beam used as a frame or a stiffener of an offshore structure or onshore plant structure, and more particularly to an apparatus for automatically coating a TSA on an outer surface of an H- Beam TSA coating apparatus capable of improving the coating quality of TSA and realizing automation of coating operation by allowing the coating to be performed.

Offshore structures such as floating plant storage and offloading (FPSO) for refining, storing and unloading offshore plants and drillships that drill crude oil, or crude oil produced therefrom, A main deck structure exposed above the sea as an upper part of the substructure and a support structure above the main deck structure to provide buoyancy for floatation to the sea or to provide a crude oil storage space, A drilling tower for handling the drilling equipment on the floor structure, and a flare tower structure for burning the waste gas.

For example, in the case of a drill ship, a ship is installed on the main deck in the vicinity of a main deck, a Moon Pool, formed on the bottom of the bottom of the ship, Cristmas tree trolly, a support structure on which various facilities are installed, a drilling tower structure installed on a support structure, handling drilling equipment, and providing a work base.

Columns, frames, stiffeners, and barriers that are supported and supported by the structure of the facility are mainly composed of cylindrical pipes, H-beams, plates, etc., in support structures, drilling tower structures, platform structures or offshore plant structures of such offshore structures.

The surface of such a structure is essentially coated to prevent corrosion and ensure the life of the structure.

In the case of structures exposed to marine environments or harsh conditions of the land with general paint coatings, the lifetime limit is easily revealed. Therefore, in order to prevent long-term corrosion of the structure and prolong its life, Is performed.

Among them, the TSA (Thermal Spray Aluminum) coating is superimposed on a general paint coating or overlapped with a passive fire protection (PFP) forming a refractory coating, or alone (in this case, a sealer coating is performed in parallel ).

The TSA coating melts the aluminum wire by electric coil resistance heat or arc heat in a TSA unit for melting and spraying (eg spray gun apparatus) and is sprayed by high-pressure compressed air at the outlet of the TSA unit for melting and spraying And is sprayed from a nozzle to form an aluminum film of a predetermined thickness on the surface of the structure.

Conventionally, in the TSA coating for the H-beam, the aluminum wire wound around the roll in the aluminum wire box is fed into the TSA unit for melting and spraying, and the aluminum wire is fed to the head portion of the spray unit ), And molten aluminum was sprayed onto the surface of the H-beam in the form of fine particles by the compressed air introduced into the head portion of the spray unit.

Conventionally, in such a coating operation, the operator not only carried the spray unit directly by hand, but also rotated the H-beam 90 degrees or 180 degrees by using a separate facility such as a crane in accordance with the progress of the coating Respectively.

As described above, in the conventional TSA coating process, since the operator has to proceed the entire process manually, there is a problem that the worker easily feels fatigue and the labor load is increased, and it is difficult to uniformly form the coating thickness. Therefore, There is a problem that does not meet the design performance, and it takes a lot of work time and requires a lot of manpower due to the use of crane equipment.

Published Patent Publication No. 10-2013-0047339

Therefore, the present invention realizes the automation of TSA coating operation on the outer surface of H-beam, and by forming the TSA coating layer to a uniform thickness, it is possible to improve the coating quality on the structure, reduce the labor burden of the worker and shorten the coating time The present invention relates to an H-beam TSA coating apparatus.

In order to achieve this object, an H-beam TSA coating apparatus according to the present invention is an H-beam TSA coating apparatus for applying a TSA material to an outer surface of an H-beam, H-beam support and rotation mechanism for rotating and rotating the H-beam; An X-axis linear transfer unit installed along a longitudinal direction of the H-beam at a position facing a side of the horizontally laid H-beam; A first transfer plate mounted on the X-axis linear transfer unit and moving in the X-axis direction which is the longitudinal direction of the H-beam; A Y-axis linear transfer unit installed on the first transfer plate in the Y-axis direction orthogonal to the X-axis; A second transfer plate mounted on the Y-axis linear transfer unit and moving in the Y-axis direction; A TSA unit mounted on the second transfer plate for melting and spraying by melting the aluminum wire by electricity and spraying it with a spray nozzle forward by compressed air; A wire feeding box mounted on the second transfer plate for drawing and feeding aluminum wire wound therein; A wire feeding unit for feeding the aluminum wire drawn out from the wire feeding box to the TSA unit for melting and spraying; And a compressed air supply line for supplying compressed air to the TSA unit for melting and spraying.

In the H-beam TSA coating apparatus of the present invention, the H-beam supporting and rotating mechanism (100) is configured to rotate by a driving device (120) while holding one end in the longitudinal direction of the H- Chuck 110; And a center mechanism 150 for rotatably supporting the opposite end of the H-beam 2 against the rotary chuck 110. The H-

In the H-beam TSA coating apparatus of the present invention, the X-axis linear transfer unit may include a first guide rail installed along the longitudinal direction of the H-beam, a second guide rail slidably moving along the first guide rail, A first LM guide having a first guide block on which the first transfer plate is mounted; And a first driving mechanism for linearly feeding the first transfer plate.

In this case, the first driving mechanism may be composed of a linear motor including a first stator and a first mover.

In the H-beam TSA coating apparatus of the present invention, the Y-axis linear transfer unit may include: a second guide rail provided along the Y-axis direction on the first transfer plate; A second LM guide having a second guide block on which the second transfer plate is mounted; And a second driving mechanism for linearly feeding the second transfer plate.

In this case, the second driving mechanism may be composed of a linear motor including a second stator and a second mover.

In the H-beam TSA coating apparatus of the present invention, the compressed air supply line includes: a connection connector connected to a pneumatic connector of the TSA unit for melting and spraying; A pneumatic tube extending from the connection connector; A pneumatic block in which the pneumatic tube is elastically coupled in the Y-axis direction; And a pneumatic hose line connected to the pneumatic block for supplying compressed air from a compressed air supply source.

In the H-beam TSA coating apparatus of the present invention, an intermediate guide block is provided between the wire feeding box and the wire feeding unit and guides the aluminum wire drawn out from the wire feeding box. And a wire guide liner connecting the inlet of the wire guide unit and the intermediate guide block to guide the transfer of the aluminum wire through the inner passage.

According to the H-beam TSA coating apparatus according to the present invention, the H-beam can be automatically rotated in accordance with the process by installing the H-beam on the H-beam supporting and rotating mechanism.

Further, by employing a configuration in which the H-beam is placed on a support roller without a separate fixing device or a chuck device and rotated by a drive roller and a power source, a large diameter The H-beam can be easily mounted and rotated.

In addition, the distance between the spray nozzle and the H-beam of the TSA unit for melting and spraying is automatically adjusted through the Y-axis linear transfer unit, and the TSA unit for melting and spraying is passed through the X- By automatically transferring in the longitudinal direction, TSA coating thickness can be precisely and uniformly applied, thereby ensuring TSA coating quality, contributing to shortening of coating time and minimization of defect rate.

In addition, the wire feed box can be mounted and a wire feeding unit can be provided, so that the aluminum wire can be supplied automatically and easily, thereby facilitating automation of TSA coating.

1 is a side view of an H-beam TSA coating apparatus according to the present invention.
2 is a plan view of a TSA coating apparatus according to the present invention.
FIG. 3 is a view of the main part viewed from the direction "A" of FIG.
Figure 4 is an enlarged view of the transport units of Figure 2;
5 is a view showing an example of the structure of the wire feeding unit.

Hereinafter, preferred embodiments of the H-beam TSA coating apparatus of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show an H-beam TSA coating apparatus according to the present invention. FIG. 1 shows an overall side view, FIG. 2 shows an overall plan view, and FIG. 3 shows a 'A' The spray nozzle 620 is viewed from the front.

1 to 3, an H-beam TSA coating apparatus according to the present invention includes an H-beam supporting and rotating mechanism 100 for supporting and rotating an H-beam 2 in a transverse state; An X-axis linear transfer unit 200 installed along the longitudinal direction of the H-beam 2 at a position facing a lateral side of the horizontally laid H-beam 2; A first transfer plate 300 mounted on the X-axis linear transfer unit 200 and moving in the X-axis direction in the longitudinal direction of the H-beam 2; A Y-axis linear transfer unit 400 installed on the first transfer plate 300 in the Y-axis direction orthogonal to the X-axis; A second transfer plate (500) mounted on the Y-axis linear transfer unit (400) and moving in the Y-axis direction; A TSA unit 600 for melting and spraying, which is mounted on the second transfer plate 500 and which melts the aluminum wire 652 electrically and injects it into the forward spray nozzle 620 by compressed air; A wire feeding box 650 mounted on the second transfer plate 500 for drawing and feeding the aluminum wire 652 wound therein; A wire feeding unit 670 for feeding the aluminum wire 652 drawn from the wire feeding box 650 to the TSA unit 600 for melting and spraying; And a compressed air supply line 710 for supplying compressed air to the TSA unit 600 for melting and spraying.

In the present invention, the H-beam 2 is laid down on the H-beam supporting and rotating mechanism 100 to be automatically rotated in accordance with the process, and the TSA for melting and spraying through the Y- The distance between the unit 600 and the H-beam 2 is automatically adjusted and the TSA unit 600 for melting and spraying is passed through the X-axis linear transfer unit 200 in the longitudinal direction of the H- So that it can be automatically transported.

Along with this, a wire feeding box 650 having an aluminum wire 652 wrapped around an inner roll 652 is provided, and the aluminum wire 652 drawn out from the wire feeding box 650 is drawn out Thereby automatically feeding the TSA unit 600 for melting and spraying through the wire feeding unit 670, thereby automating all processes of the TSA coating.

The above devices can be installed on the base plate 50, or on the bottom of the process line, as in the embodiment shown in Figures 1-3. The base plate 50 can be supported by a plurality of pillars 52.

The components of the H-beam TSA coating apparatus according to the present embodiment will be described in more detail.

The H-beam supporting and rotating mechanism 100 is provided at both longitudinal ends of the H-beam 2 and is provided with two support rollers (not shown) which support the H- 110). The two support rollers 110 are rotatably installed in the support block 120.

The H-beam supporting and rotating mechanism 100 includes a rotary chuck 110 for holding one end portion in the longitudinal direction of the H-beam 2 and rotating by the driving device 120, And a center mechanism 150 for rotatably supporting the opposite end of the H-beam 2.

The rotary chuck 110 includes a rotary block 112 mounted on the spindle 114 rotated by the driving device 120 and four jaws 120 installed movably in the radial direction and outward of the rotary block 112. [ (jaw) Two opposing of the four jaws 116 are pressed radially inwardly on both flanges 2a and 2a of the H-beam 2 while the other two are facing the web of the H- (2b) is pressed inward radially inward.

The drive device 120 is composed of, for example, a motor and a power transmission mechanism including a belt, a chain, and a gear mechanism for transmitting the rotational force of the motor to the spindle 114.

The center mechanism 150 includes a body 152 installed to be movable forward and backward with respect to the rotary chuck 110 by a linear motion guide 55 of the base plate 50 and an H- 2 at the longitudinal end of the web 2b. The center 156 may be a dead center or a revolving center.

Next, the X-axis linear transfer unit 200 is provided with a first LM guide (linear motion guide) and a first drive mechanism 220.

The first LM guide includes a first guide rail 210 installed along the longitudinal direction of the H-beam 2 and a first guide block 212 sliding along the first guide rail 210 .

A first transfer plate 300 is mounted on the first guide block 212. Thus, the first transfer plate 300 can be moved in the X-axis direction (i.e., the longitudinal direction of the H-beam) by sliding the first guide rail 212 together with the first guide block 212 on the H- .

The first driving mechanism 220 linearly feeds the first transfer plate 300 in the X-axis direction, and includes a first stator 222 and a first mover 224, as in the embodiment shown in the drawing. Or a known ball screw device or the like can be adopted as the first linear motor. The first driving mechanism 220 of the linear motor is provided with the first stator 222 on the base plate 50 and the first mover 224 on the first transfer plate 300).

Likewise, the Y-axis linear transfer unit 400 includes a second LM guide and a second drive mechanism 420. The Y-axis direction is a direction orthogonal to the X-axis direction (longitudinal direction of the H-beam) and a direction approaching or departing from the H-beam 2 in the lateral direction.

The second LM guide is installed along the Y-axis direction on the first transfer plate 300 and slides along the second guide rail 410 and the second guide rail 410, And a second guide block 412 on which the second transfer plate 500 is mounted.

The second driving mechanism 420 linearly feeds the second transfer plate 500 in the Y-axis direction, and is provided along the Y-axis direction on the first transfer plate 300.

The second driving mechanism 420 may be constituted by a linear motor including the second stator 422 and the second mover 424, or a known ball screw device or the like may be employed. The second driving mechanism 420 composed of a linear motor is provided with the second stator 422 on the first transfer plate 300 and the second mover 424 on the second transfer plate 300 in the same manner as the known linear motor, And is provided on the transfer plate (500).

Next, the TSA unit 600 for melting and spraying melts the aluminum wire 652 by electric power and injects the aluminum wire 652 into the forward spray nozzle 620 by the compressed air. Axis direction and in the Y-axis direction integrally with the second transfer plate 500. [

When the TSA unit 600 for melting and spraying uses the coil resistance heat, one strand of aluminum wire is melted by passing through the hot coils, so that only one wire feeding box 650 needs to be prepared. This is the same as the embodiment shown in the drawings. However, in the case where the TSA unit 600 for melting and spraying uses arc heat, since an arc is generated by using the two strands of aluminum wire as electrodes to make the end near the spray nozzle 620 close to the arc, 650 and a wire feeding unit 670 are prepared and mounted on the second transfer plate 500.

The wire feeding box 650 is provided by preliminarily winding an aluminum wire 652 on an inner roll, and an outlet for drawing the aluminum wire 652 is formed in the upper lid. The wire feeding box 650 is fixed by a fixture 660 provided on the second transfer plate 500.

The wire feeding unit 670 is installed in connection with the TSA unit 600 for melting and spraying and the aluminum wire 652 drawn out from the wire feeding box 650 is fed by an internal feeding roller to the TSA unit for melting and spraying (600).

The aluminum wire 652 fed from the wire feeding unit 670 enters the TSA unit 600 for melting and spraying, melts, and is sprayed in a fine state from the spray nozzle 620 by compressed air.

5, in order to smoothly guide the aluminum wire 652 pulled out of the wire feeding box 650 to the wire feeding unit 670, a wire feeding unit 650 is provided between the wire feeding box 650 and the wire feeding unit 670 An intermediate guide block 680 and a wire guide liner 690 connecting the intermediate guide block 680 and the inlet of the wire feeding unit 670. [ The wire guide liner 690 is a tube having a passage therein.

The aluminum wire 652 drawn out from the wire feeding box 650 passes through the intermediate guide block 680 and slides through the wire guide liner 690 into the wire feeding unit 670.

The connection structure of the compressed air supply line 710 to the TSA unit 600 for melting and spraying will be described with reference to FIG. 4, and an example of the wire feeding unit 670 will be described later with reference to FIG.

Figure 4 is an enlarged view of the transport units of Figure 2. 1 to 3 will be referred to concurrently.

4, a compressed air supply line 710 for supplying compressed air to the TSA unit 600 for melting and spraying is connected to a connection connector (not shown) connected to the pneumatic connector 602 of the TSA unit 600 for melting and spraying, A pneumatic tube 714 extending from the connecting connector 712 and a pneumatic block 716 for pivotally connecting the pneumatic tube 714 in the Y-axis direction, And a pneumatic hose line 730 for supplying compressed air from a compressed air source.

The pneumatic tube 714 and the pneumatic block 716 are pneumatically hermetically connected slidably so that the TSA unit 600 for melting and spraying and the Y- Allow axial feed.

The pneumatic hose line 730 is provided with a hose conveyor in which a pneumatic hose is conduit, adapted to conform to the X-directional transfer.

An embodiment of the wire feeding unit 670 is shown in Fig.

5, the wire feeding unit 670 is provided with two feeding rollers 671 and two press rollers 672 circumscribed respectively, and an inlet nozzle 673 is installed at the inlet side do. A wire guide liner 690 is connected to the inlet nozzle 673. The feeding roller 671 is a drive roller, and its outer diameter is formed with a groove into which an aluminum wire 652 is inserted. The press roller 672 frictionally presses the surface of the aluminum wire 652 passing through the groove of the feeding roller 671. The aluminum wire 652 that has passed through the inlet nozzle 673 is conveyed from the left to the right in the drawing by the engagement rotation of the first feeding roller 671 and the press roller 672 and the intermediate guide 674 And exits through the exit nozzle 675 by the second feeding roller 671 and the press roller 672.

1 to 5, reference numeral 230 denotes a cable conveyor installed between the base plate 50 and the first transfer plate 300 to supply power to the first driving mechanism 220. Reference numeral 510 denotes a cable installed between the first transfer plate 300 and the second transfer plate 500 for supplying power to the second driving mechanism 420 and the TSA unit 600 for melting and spraying. Conveyor '.

In the present invention as described above, the H-beam 2 can be rotatably installed on the H-beam supporting and rotating mechanism 100 by lying on the H-beam 2 and automatically rotated in accordance with the process. According to the structure in which the H-beam 2 is fixed by the rotary chuck 110 and the center mechanism 150 and the rotary chuck 110 is rotated by the driving device, the size of the H- The large, long H-beam can be easily mounted.

The distance between the spray nozzle 620 of the TSA unit 600 for melting and spraying and the H-beam 2 is automatically adjusted through the Y-axis linear transfer unit 400, and the X- 200 can automatically transport the TSA unit 600 for melting and spraying in the longitudinal direction of the H-beam 2, so that the TSA coating thickness can be precisely and uniformly applied, And it contributes to shortening the coating time and minimizing the defect rate.

The drive unit 120, the linear transfer unit 200 (400), the TSA unit 600 for melting and spraying, compressed air, and the like are controlled through a controller by a microcomputer. In the case of the TSA coating, when the specification of the H-beam 2, the TSA coating thickness, and the like are inputted through the input means, the coordinates of the H-beam 2 and the spray nozzle 620, And controls the drive unit by calculating a control value such as the number of revolutions of the beam 2.

In addition, since the wire feeding box 650 is mounted and the wire feeding unit 670 is provided, the aluminum wire 652 can be automatically and easily supplied, thereby realizing the TSA coating automation more easily.

The foregoing is a description of certain preferred embodiments of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, .

2: H-beam
2a: Flange
2b:
50: base plate
55: Linear motion guide
100: H-beam support and rotation mechanism
110:
112: rotating block
114: spindle
116: Joe
120: Driving device
150: Center mechanism
152: Body
154: Center
200: X-axis linear feed unit
210: first guide rail
212: first guide block
220: first driving mechanism
222: first stator
224: First mover
230: Cable conveyor
300: first transfer plate
400: Y-axis linear feed unit
410: second guide rail
412: second guide block
420: second driving mechanism
422: second stator
424: second mover
500: second transfer plate
510: Cable conveyor
600: TSA unit for melting and spraying
602: Pneumatic connector
620: Spray nozzle
650: wire feed box
652: Aluminum wire
660: intermediate guide block
690: Wire guide liners
710: compressed air supply line
712: Connection connector
714: Pneumatic tube
716: Pneumatic block
730: Pneumatic hose line

Claims

An H-beam TSA coating apparatus for applying a TSA material to an outer surface of an H-beam (2)
An H-beam support and rotation mechanism 100 for supporting and rotating the H-beam 2 in a horizontal position;
An X-axis linear transfer unit 200 installed along the longitudinal direction of the H-beam 2 at a position facing a lateral side of the horizontally laid H-beam 2;
A first transfer plate 300 mounted on the X-axis linear transfer unit 200 and moving in the X-axis direction in the longitudinal direction of the H-beam 2;
A Y-axis linear transfer unit 400 installed on the first transfer plate 300 in the Y-axis direction orthogonal to the X-axis;
A second transfer plate (500) mounted on the Y-axis linear transfer unit (400) and moving in the Y-axis direction;
A TSA unit 600 for melting and spraying, which is mounted on the second transfer plate 500 and which melts the aluminum wire 652 electrically and injects it into the forward spray nozzle 620 by compressed air;
A wire feeding box 650 mounted on the second transfer plate 500 for drawing and feeding the aluminum wire 652 wound therein;
A wire feeding unit 670 for feeding the aluminum wire 652 drawn from the wire feeding box 650 to the TSA unit 600 for melting and spraying; And
And a compressed air supply line (710) for supplying compressed air to the TSA unit (600) for the melting and spraying.

The method according to claim 1,
The H-beam supporting and rotating mechanism (100)
A rotary chuck 110 for grasping one longitudinal end of the H-beam 2 and rotating the H-beam 2 by a driving device 120;
And a center mechanism (150) rotatably supporting an opposite end of the H-beam (2) against the rotary chuck (110).

The method according to claim 1,
The X-axis linear transfer unit (200)
A first guide rail 210 installed along the longitudinal direction of the H-beam 2 and a second guide rail 210 slidably moving along the first guide rail 210 and having the first transfer plate 300 mounted thereon A first LM guide having a first guide block (212); And
And a first drive mechanism (220) for linearly transferring the first transfer plate (300).

The method of claim 3,
Wherein the first drive mechanism (220) comprises a linear motor including a first stator (222) and a first mover (224).

The method according to claim 1,
The Y-axis linear transfer unit (400)
A second guide rail 410 installed along the Y-axis direction on the first transfer plate 300 and a second guide rail 410 slidable along the second guide rail 410, A second LM guide having a second guide block 412 on which the second guide block 412 is mounted; And
And a second drive mechanism (420) for linearly transferring the second transfer plate (500).

6. The method of claim 5,
Wherein the second drive mechanism (420) comprises a linear motor including a second stator (422) and a second mover (424).

The method according to claim 1,
The compressed air supply line (710)
A connection connector 712 connected to the pneumatic connector 602 of the TSA unit 600 for melting and spraying;
A pneumatic tube 714 extending from the connection connector 712;
A pneumatic block 716 in which the pneumatic tube 714 extends and retractably engages in the Y-axis direction;
And a pneumatic hose line (730) connected to said pneumatic block (716) for supplying compressed air from a source of compressed air.

The method according to claim 1,
An intermediate guide block 680 installed between the wire feeding box 650 and the wire feeding unit 670 to guide the aluminum wire 652 drawn out from the wire feeding box 650;
And a wire guide liner (690) connecting the intermediate guide block (680) and an inlet of the wire feeding unit (670) to guide the transfer of the aluminum wire (652) through the internal passage. TSA coating equipment.