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WO2008082068A1 - Appareil permettant de travailler à l'intérieur d'une structure de type réservoir - Google Patents

Appareil permettant de travailler à l'intérieur d'une structure de type réservoir Download PDF

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Publication number
WO2008082068A1
WO2008082068A1 PCT/KR2007/005175 KR2007005175W WO2008082068A1 WO 2008082068 A1 WO2008082068 A1 WO 2008082068A1 KR 2007005175 W KR2007005175 W KR 2007005175W WO 2008082068 A1 WO2008082068 A1 WO 2008082068A1
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WO
WIPO (PCT)
Prior art keywords
unit
working
fixed
rotating axis
working arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2007/005175
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English (en)
Inventor
Joon-Yul Lee
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Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from KR1020060138523A external-priority patent/KR100781316B1/ko
Priority claimed from KR1020070037579A external-priority patent/KR100901114B1/ko
Application filed by Individual filed Critical Individual
Publication of WO2008082068A1 publication Critical patent/WO2008082068A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots

Definitions

  • the present invention relates to an apparatus for interior work a of tank-type structure for working safely in the interior of a large structure, and more specifically to an apparatus for interior work of a tank-type structure with which it is possible to safely and easily carry out the interior work of a structure, which may be a cargo hold of a ship, large containers and tank-type structures for a ship, factory and power plant.
  • the shipbuilding period can be shortened by improving the turnover rate of a dock, which is the number of times that a dock can be used within a given period.
  • the reason why the turnover rate of a dock is so important is because no matter how fast work was done in the preceding manufacturing process, the whole shipbuilding process is delayed if the dock process is delayed.
  • the dock turnover rate is increased, not only the efficiency of equipment use is increased, but also productivity and the production of ships can be increased.
  • the present invention is to solve such conventional problems as mentioned above and it is an object to provide an apparatus for interior work of a tank-type structure by which not only the workers can work safely since the work table for workers to board is safely fixed, but also the shipbuilding period can be remarkably shortened since the time for installing and removing the structure is reduced.
  • an apparatus for interior work of a tank-type structure comprises a fixed unit provided in said structure; a working unit installed telescopically on said fixed unit, wherein the working unit includes a work table which is provided for the worker to board, and said work table is moved up and down while simultaneously being rotated in said structure; and a drive unit which is mounted on said fixed unit to rotate and move said working unit up and down.
  • the fixed unit includes first and second fixed plates that are stacked and fixed successively on the inner floor of the structure.
  • the drive unit comprises a rotating axis installed on the second fixed plate so as to be rotated on the second fixed plate by rotation of a pinion gear; and a drive motor which is installed on the second fixed plate and has a spur gear that is in mesh with the pinion gear so as to rotate the pinion gear.
  • the drive unit comprises a working arm support which is installed on the rotating axis and in which the working unit is pivotably combined by a hinge; and a working arm hydraulic cylinder which is installed between the working unit and the working arm support to pivot the working unit up and down on the working arm support.
  • the working unit comprises a working arm which is combined with the drive unit by a hinge; a first sliding boom which is inserted slidably into the working arm; and a second sliding boom with which the work table is combined and which is slidably inserted into the first sliding boom.
  • the apparatus further comprises a top drive unit which is rotatably mounted on the inner top surface of the structure for smooth operation of the working unit and is combined with the working unit by wire.
  • the top drive unit comprises a winch housing which is rotatably installed on the inner top surface of the structure; a first winch which is installed in the winch housing and is connected to the upper end of the working arm through a first wire; and a second winch which is installed in the winch housing and is connected to the upper end of the second sliding boom through a second wire.
  • an opening is formed on the top surface of the structure corresponding to the fixed unit, and the top fixed unit is installed in the opening;
  • the top drive unit comprises a donut-shape first upper fixed plate fixed on the outside of the top opening; a second upper fixed plate combined with the top surface of the first upper fixed plate; a winch housing which is installed rotatably on the second upper fixed plate and has a top pinion gear; and a top drive motor which has a top spur gear that is in mesh with the top pinion gear and is installed on the second upper fixed plate; and wherein the winch housing is provided with a first winch which is connected to the upper end of the working arm through a first wire and a second winch which is installed in the winch housing and is connected to the upper end of the second sliding boom through a second wire.
  • the apparatus further comprises a hydraulic control unit having a hydraulic control body which is installed on one side of the rotating axis, wherein the hydraulic control body is hydraulically and electrically connected to the rotating axis through a hydraulic line and control line so as to control the operation of the rotating axis, and is hydraulically connected to the first and second winches through a winch control line so as to control the operation of the first and second winches.
  • a hydraulic control unit having a hydraulic control body which is installed on one side of the rotating axis, wherein the hydraulic control body is hydraulically and electrically connected to the rotating axis through a hydraulic line and control line so as to control the operation of the rotating axis, and is hydraulically connected to the first and second winches through a winch control line so as to control the operation of the first and second winches.
  • an apparatus for interior work of a tank-type structure comprises a fixed unit including a first lower fixed plate fixed on the floor of the structure and a second fixed lower plate fixed on the first lower fixed plate; an operating unit which is installed rotatably on the fixed unit; a working unit which is provided with a work table for the worker to board and is installed on the operating unit so as to be rotated simultaneously while the work table is moved up and in the structure; a drive unit which is installed in the fixed unit to rotate the operating unit; and a sliding carriage unit in which is the working unit is installed pivotably and which is installed movably up and down in the working unit.
  • the apparatus further comprises a lower fixed unit which is installed in the structure to support the operating unit.
  • the operating unit comprises an upper fixed body which is installed pivotably in the fixed unit; and a rotating axis which is fixed on the upper fixed body so as to be rotated identically with the upper fixed body and has a hollow form with a long hole formed lengthwise and an insertion slot formed at the bottom.
  • the drive unit comprises a drive motor which has first gear and is installed in the fixed unit; and a second gear which is fixed on the upper fixed body in mesh with the first gear and rotates the upper fixed body by the rotation of the first gear.
  • the sliding carriage unit comprises a plurality of rollers that are in contact with the inner surface of the rotating axis so as to be slid up and down along the rotating axis; a receiving bracket with which the working unit is rotatably combined is mounted on one side; and a chain motor for driving a chain is mounted inside the upper fixed body, so that when the chain is moved up and down by the operation of the chain motor the sliding carriage unit also is moved up and down along with the chain.
  • the sliding carriage unit comprises a plurality of rollers that are in contact with the inner surface of the rotating axis so as to be slid up and down along the rotating axis; a receiving bracket with which the working unit is rotatably combined is mounted on one side; a drive motor provided with a rack gear which is vertically fixed lengthwise on one side in the rotating axis; a pair of pinion gears which are in mesh with the rack gear and connected by a helical gear; and a drive gear which is in mesh with the helical gear so as to rotate the pinion gears.
  • the lower fixed unit comprises a lower fixed plate which is fixed on the inner floor of the structure so as to be located at the bottom of the rotating axis; a lower fixed body which is fixed on the lower fixed plate; a stopper pin which is inserted in the insertion slot of the rotating axis while moving up and down in the lower fixed body so as to fix the rotating axis, and a hydraulic cylinder which is installed in the lower fixed body and moves the stopper pin up and down.
  • the working unit comprises a first working arm which is combined pivotably with the sliding carriage unit through a first hinge and is connected to the first winch through a first wire installed in the upper fixed body; a sliding boom which is combined slidably with the first working arm; and a cylinder which is installed inside the first working arm so as to slide the sliding boom in the first working arm and moves the sliding boom to and fro in a straight line.
  • the working unit further comprises a second working arm which is installed between the first working arm and the sliding boom, and one end of it is combined with the first working arm by a second hinge and the sliding boom is inserted on the other end, and is connected to the second winch installed in the upper fixed body by the second wire.
  • the first and second hinges are provided respectively with a motor which can prevent falling and control torque on one side.
  • the surface on which the rotating axis and sliding carriage unit contact each other is provided with brushes in the direction of the outer circumference of the unit, and further comprises a vacuum motor installed inside the sliding carriage unit and a lubricant supply device connected to the brushes.
  • FIG. 1 is a schematic view showing the overall configuration of an apparatus for interior work of a tank-type structure according to a first embodiment of the present invention
  • FIG. 2 is a schematic view showing an operating state of the apparatus for interior work of a tank-type structure according to the first embodiment
  • FIG. 3 is a schematic view showing a folded state of the apparatus for interior work of a tank-type structure according to the first embodiment of the present invention
  • FIG. 4 is a schematic view showing the configuration of another example of the apparatus for interior work of a tank-type structure according to the first embodiment of the present invention.
  • FIG. 5 is a schematic view showing an operating state of another example of the apparatus for interior work of a tank-type structure according to the first embodiment of the present invention
  • FIG. 6 is a schematic view showing a folded state of another example of the apparatus for interior work of a tank-type structure according to the first embodiment of the present invention.
  • FIG. 7 is a schematic view showing the configuration of a modified embodiment of the top drive unit in another example of the apparatus for interior work of a tank-type structure according to the first embodiment of the present invention
  • FIG. 8 is a schematic view showing the overall configuration of an apparatus for interior work of a tank-type structure according to a second embodiment of the present invention.
  • FIG. 9 is a cross sectional view showing an assembled state of a sliding carriage unit and operating unit according to the second embodiment of the present invention
  • Fig. 10 is a schematic view showing a modified example of the sliding unit and operating unit according to the second embodiment of the present invention
  • FIG. 11 is a cross sectional view showing the assembled state of the sliding carriage unit and operating unit according to the modified example
  • FIG. 12 and Fig. 13 are schematic views showing the installation state in which the apparatus for interior work of a tank-type structure according to the second embodiment of the present invention is installed to and removed from cargo hold, respectively;
  • FIG. 14 and Fig. 15 are schematic views showing the modified examples of the apparatus for interior work of a tank-type structure according to the second embodiment of the present invention.
  • roller 253 receiving portion
  • an apparatus 100 for interior work of a tank-type structure is used in interior work of a tank-type small cargo hold and a large container for a ship, factory and power plant, and a tank- type large cargo hold such as an on-land large tank.
  • the apparatus 100 for interior work comprises a fixed unit 10 disposed on the interior floor of a cargo hold 50, a working unit 20 which is provided with a work table for the worker to board and installed telescopically on the fixed unit 10 so as to be rotated simultaneously while being moved up and down inside the cargo hold 50, and a drive unit 30 which is mounted on the fixed unit 10 to rotate and move the working unit 20 up and down, and a top drive unit 40 which is rotatably mounted on the inner top surface 51 of the cargo hold 50 for the working unit 20 to be operated smoothly and to which the working unit 20 is connected through wires 41 and 43.
  • the fixed unit 10 comprises a first lower fixed plate
  • the second lower fixed plate 12 is fixed to the first lower fixed plate 11 by bolts 13.
  • the drive unit 30 installed on the top of the second lower fixed plate 12 comprises a rotating axis 33 which has a pinion gear 31 mounted and is installed rotatably on the second lower fixed plate 12 and a drive motor 37 for rotating a spur gear 35 which is in mesh with the pinion gear 31.
  • a working arm support 39 At the top end of the rotating axis 33 is installed a working arm support 39, with which a working unit 20 is combined to be pivotable up and down.
  • a working arm hydraulic cylinder 38 Between the working unit 20 and the working arm support 39 is provided a working arm hydraulic cylinder 38 so as to vary the angle of the working unit 20 by pivoting the working unit 20 from the working arm support 39.
  • the lower end of the working arm hydraulic cylinder 38 is fixed pivotably to the working arm support 39 and the upper end thereof is fixed pivotably to the working arm 22 of the working unit 20 so as to rotate the working arm 22 during operation of the working arm hydraulic cylinder.
  • the stroke of the working arm hydraulic cylinder 38 is determined by considering the height of the top surface 51 for working and the length of the working unit 20 when the first and second sliding booms 23 and 24 of the working unit 20 are maximally extended.
  • the second sliding boom 24 of the working unit 20 is inserted in the first sliding boom 23, which is provided with a second hydraulic cylinder 23a so as to move the second sliding boom 24 up and down.
  • the rod of the second hydraulic cylinder 23 a is also connected to the second sliding boom 24 and the fixed portion of the other side is connected to the first sliding boom 23, so the second sliding boom 24 is moved linearly sliding from the first sliding boom 23.
  • a work table for the work equipment or worker to board At this time, the work equipment or work table has the length adjusted according to the linear reciprocating movement of the first and second sliding booms 23 and 24, and as can be seen in Figs. 1 and 2, it can be close to the top surface 51 of the cargo hold 50 which is very high and to the side, so it is easy to work.
  • the first hydraulic cylinder 21a and second hydraulic cylinder 23a can be installed by selectively varying the position to avoid interference with each other.
  • the top drive unit 40 comprises a winch housing 45 installed on the inner top surface of the cargo hold 50, a second winch 47 connected to the upper end of the second sliding boom 24 by a second wire 43, and a first winch 49 which is installed inside the winch housing 45 and connected to the upper end of the working arm 22 by a first wire 41. Since the working arm 22 of the working unit 10 and the second sliding boom 24 are supported firmly to the top drive unit 40 by the first and second wires 41 and 43, the working unit 20 is prevented from shaking even if the first and second sliding booms 23 and 24 of the working unit 10 are extended long. Accordingly, the worker can carry out work in a comfortable and stable condition, so precise work is possible. Namely, cost saving at the production site and installation and construction quickly occur, so there is an effect of reduced work period.
  • the winch housing 45 of the top drive unit 40 is rotatably installed on the top surface 50 of the cargo hold so as to be rotated simultaneously in the same direction as the rotating axis 33 of the drive unit 30. Therefore, the first wire and the second wire 41 and 43 are prevented from becoming entangled with each other when the working unit 20 is rotated.
  • the winch housing 45 is fixed rotatably to a rotating body (not shown) mounted on the top surface 51 of the tank-type cargo hold 50 by means of bearings.
  • a hydraulic control body 63 On one side of the rotating axis 33 is installed, by a support 61, a hydraulic control body 63 composing a hydraulic control unit 60.
  • the hydraulic control body 63 is hy- draulically and electrically connected to the rotating axis 33 through a hydraulic line 63a and control line 63b so as to control the operation of the rotating axis 33, and hy- draulically connected to first and second winches 49 and 47 through a winch control line 65 so as to control the operation of the first and second winches 49 and 47.
  • the support 61 is rotated simultaneously with the rotating axis 33, so the control line 63b, hydraulic line 63a and winch control line 65 that are connected to the hydraulic control body 44 are prevented from becoming entangled or twisted.
  • the hydraulic control body 63 further includes a hydraulic reservoir (not shown) for containing the hydraulic liquid.
  • the winch control line 65 so as to control the first and second winches 49 and 47 of the top drive unit 40 that is installed rotatably to the top surface of the cargo hold.
  • the winch housing 45 may be selectively provided with a third winch 48 so as to support the working unit 20 more stably.
  • first and second hydraulic cylinders 21a and 23a and the working arm hydraulic cylinder 38 that are connected to and operated by the hydraulic control unit 60 have hydraulic pressure supplied from the hydraulic control body 63 according to the control of the hydraulic control unit 60 connected through the hydraulic line 63a.
  • the hydraulic pressure pumped from the hydraulic source according to the control of the hydraulic control unit 60 is supplied to the working arm hydraulic cylinder 38, first hydraulic cylinder 21a and second hydraulic cylinder 23a from the hydraulic control body 63 through the hydraulic line 63.
  • the control line 63b for controlling the drive unit 30 and the working unit 20 is connected to the drive motor 37 to send control signals from control unit 60 to the drive motor 37.
  • the apparatus 100 for interior work of a tank-type structure when completing the interior work of the cargo hold 50, inserts the first and second sliding booms 23 and 24 into the working arm support 39 and the first sliding boom 23, respectively, and the length of the working unit 20 is maximally reduced, and the working arm hydraulic cylinder 38 is contracted to pivot the working arm 22 toward the working arm support
  • the size of the working unit 20 is decreased to make the apparatus 100 for interior work move easily. Namely, when installing or removing the apparatus 100 for interior work, the length of the working unit 20 is maximally reduced and pivoted stably to the working arm support 39. Accordingly, just by separating the second lower fixed plate 12 from the first lower fixed plate 11, the apparatus 100 for interior work can be installed and removed easily.
  • FIGs. 5 to 7 show a modified example of the apparatus 100 for interior work of a tank-type structure according to the first embodiment.
  • the same symbols are used for the same configuration as the first embodiment and specific description thereof is omitted.
  • a top opening 51a is formed on the top surface 51 of the cargo hold 50
  • the top drive unit 40 is installed in this top opening for use.
  • the top drive unit 40 is installed on the top surface 51 of the cargo hold 50 so as to be attached to and detached from the top opening 51a.
  • a donut- shape first upper fixed plate 71 is fixed on the outside of the cargo hold 50 of the top opening 51a
  • the second upper fixed plate 73 is fixed on the top surface of the first upper fixed plate 71 by bolts 73a.
  • a winch housing 45 is rotatably installed on the second upper fixed plate 73, and a top pinion gear 75 is mounted on the top of the winch housing 45.
  • a top spur gear 77 is in mesh with the top pinion gear 75, and the top spur gear 77 is fixed on the motor axis of the top drive motor 79.
  • the top drive motor 79 is also controlled by the control signals transmitted from the hydraulic control unit 60 in the same way as the drive motor 37.
  • the top drive unit 40 according to the modified example can be easily installed to and removed from the cargo hold 50.
  • the top drive unit 40 that is fixed or installed detachably on the top surface 51 of the cargo hold 50 further includes a third wire 42 connected to the upper end of the second sliding boom 24. Therefore, when the working unit 20 is operated, the working unit 20 can be supported more stably by the third wire 42.
  • One end of the third wire 42 is wound on the third winch 48 that is additionally installed in the winch housing 45, and the other end is connected to the upper end of the second sliding boom 24.
  • the third winch 48 can be installed in a row on the second winch 47, and preferably by installing the third winch 48 above the second winch 45 to make the third wire 42 and second wire 43 in parallel, the working unit 20 is supported more stably.
  • the apparatus 100 for interior work of a tank- type structure according to the first embodiment of the present invention as mentioned above can be easily installed and separated in the cargo hold 50, by installing the working unit 20 and the drive unit 30 that are monolithically combined with the fixed unit 10 installed on the floor 52 of the cargo hold 50, when installed inside the cargo hold 50 to facilitate interior work of a tank-type cargo hold 50 such as a large container for a ship, factory and power plant and an on-land large tank.
  • a tank-type cargo hold 50 such as a large container for a ship, factory and power plant and an on-land large tank.
  • the working unit 20 is supported through the first, second and third wires 41, 43 and 42. Therefore, when the working unit 20 is operated, the working unit 20 is prevented from shaking by these wires for the worker to carry out work more stably.
  • an apparatus 200 for interior work of a tank-type structure according to the second embodiment is used for a tank-type small cargo hold 50 which is smaller compared with the first embodiment.
  • the apparatus 200 for interior work comprises an upper fixed body 210 consisting of a first upper fixed plate 211 fixed to the small cargo hold 50 and a second upper fixed plate 212 fixed on the first upper fixed plate 211 by bolts 247.
  • an operating unit 230 and a drive unit for rotating the operating unit 230 respectively
  • a working unit 220 which is movable up and down.
  • a sliding carriage unit 250 which is movable up and down, and in the sliding carriage unit 250 the working unit 220 is rotatably installed.
  • the apparatus 200 for interior work of a tank-type structure according to the second embodiment further comprises a lower fixed unit 270 which is installed in the small cargo hold 50 to support the operating unit 230.
  • the operating unit 230 comprises an upper fixed body 231 which is rotatably installed on the second upper fixed plate 212 of the upper fixed body 210 and a rotating axis 233 which is fixed rotatably to the upper fixed plate 231 so as to be rotated identically with the upper fixed body 231.
  • the rotating axis 233 has a hollow shape with a long hole 233a formed lengthwise and an insertion slot 233b formed on the bottom.
  • the drive unit 240 comprises a drive motor 243 which has a first gear 241 and is installed on the second upper fixed plate 212 of the upper fixed body 210, and a second gear 245 which is fixed on the upper fixed body 231 of the operating unit 230 so as to be in mesh with the first gear 241.
  • the first gear 241 is rotated by the rotation of the drive motor 243
  • the second gear 245 in mesh with the first gear 241 is rotated together to rotate the upper fixed body 231.
  • the sliding carriage unit 250 installed inside the rotating axis 233 is slid up and down along the rotating axis 233 of the operating unit 230.
  • the sliding carriage unit 250 is provided with a plurality of rollers 251 that are in contact with the inside of the rotating axis 233, and on one side of it is formed a receiving portion 253 with which a first working arm 223 of the working unit 220 is pivotably combined.
  • the sliding carriage unit 250 is connected to a chain 215, which is driven by a chain motor 217 mounted on the inside of the upper fixed body 231 of the operating unit 230. That is, when the chain 215 is moved up and down by the operation of the chain motor 217, the sliding carriage unit 250 also is moved up and down along the chain 215.
  • the working unit 220 includes the first working arm 223, one end of which is pivotably combined with the receiving portion 253 of the sliding carriage unit 250 by a first hinge 221, a sliding boom 225 which is slidably combined with the first working arm 233, and a cylinder 237 which is installed in the first working arm 223 for the sliding boom 225 to be slid from the first working arm 223 and moves the sliding boom 225 to and fro in a straight line.
  • One side of the first hinge 221 further includes a motor 222 for rotating the first hinge 221.
  • the first working arm 223 is connected by the first wire 235a to the first winch 235 installed in the upper fixed body 231.
  • the working unit 220 may be further provided with a second working arm 229 between the first working arm 223 and the sliding boom 225.
  • the second working arm 229 has one end combined with the first working arm 223 by a second hinge 229a and the sliding boom 225 inserted in the other end.
  • the second working arm 229 is fixed by the first wire 235a to a second winch 237 installed in the upper fixed body 231 so that the working unit 220 is fixed to the operating unit 230 more stably.
  • a motor 224 that is capable of rotating the second working arm 229 is mounted on upper end of the second hinge 229a.
  • the surface on which the rotating axis 233 and the sliding carriage unit 250 contact each other is provided with brushes 255 in the direction of the outer circumference of the sliding carriage unit 250.
  • a vacuum motor 257 for discharging foreign matter in the sliding carriage unit 250.
  • a lubricant supply device 259 is connected to the vacuum motor 257 of the sliding carriage unit 250 and the brushes 255.
  • a lower fixed unit 270 is further provided so as to prevent movement of the rotating axis 233.
  • the lower fixed unit 270 comprises a lower fixed plate 271 fixed on the inner bottom surface 52 of a small cargo hold 50, a lower fixed body 273 fixed on the lower fixed plate 271, and a stopper pin 275 which is selectively inserted into the lower end of the rotating axis 233 so as to fix the rotating axis 233, and a cylinder 277 for moving the stopper pin 275.
  • the stopper pin 275 and cylinder 277 are installed inside the lower fixed body 273, which is fixed on the lower fixed plate 271 by bolts 279. And while the stopper pin 275 is moved up and down by the cylinder 277, it is inserted into and out of the insertion slot 233b of the rotating axis 233.
  • the sliding carriage unit 250 may be configured in another form.
  • the sliding carriage unit 250 of a modified form has a plurality of rollers 251 in contact with the inner surface of the rotating axis 233 provided on the outer surface of the sliding carriage unit 250 so as to be slid up and down inside the rotating axis 233.
  • On one side of the rotating axis is fixed the receiving portion 253 with which the first working arm 223 of the working unit 220 is rotatably combined.
  • a rack gear 233c which is vertically extended lengthwise of the rotating axis.
  • the sliding carriage unit 250 is provided with a pair of pinion gears 250b which are in mesh with the rack gear 233c and are connected to each other by a helical gear 250a, and a drive motor 25Od which has a drive gear 250c that is in mesh with the helical gear 250a to rotate the pinion gears 250b.
  • the sliding carriage unit 250 which is installed inside the rotating axis 233 and in which the first working arm 223 of the working unit 220 is pivotably installed, is connected to the chain drive motor 217 by the chain 215, so as the sliding carriage unit 250 is moved up and down by the operation of the chain drive motor 217, the working unit 220 is correspondingly moved. At this time, the sliding carriage unit 250 is moved up and down smoothly and stably along the rotating axis 233 by the rollers 251.
  • the working unit 220 has the sliding boom 225 extended from the first working arm 223 by the cylinder 227 installed in the first working arm 223. Accordingly, it is possible to adjust the distance of straight-line to and fro movement of the basket that is connected to the upper end of the sliding boom 225 for boarding of work equipment and workers. At this time, it is also possible to move the sliding boom 225 to a farther distance by installing a second working arm 229 between the first working arm 223 and the sliding boom 225 according to the area of the small cargo hold 50.
  • first and second working arms 233 have the pivoting angle restricted or controlled by motors 222 and 224 mounted on the first hinge 221 and second hinge 229a, they can be easily moved in case the first wire 235a is cut or becomes immovable by a heavy load. Namely, since the first and second hinges 221 and 229a are supported at a given torque by the motors 222 and 224, the first and second working arms 233 are prevented from falling down suddenly even if the first and second wires 235a and 237a are cut. And, even if the movement of the first and second working arms 233 by the first and second wires 235a and 237a is not smooth, it enables the first and second working arms 233 to move.
  • the apparatus 200 for interior work of a tank- type structure has the sliding carriage unit 250 provided with the rack gear 233c, pinion gears 250b, helical gear 250a, drive gear 250c and drive motor 25Od as well as the chain 215 and chain motor 217, so it is possible to operate the sliding carriage unit 250 all the more stably.
  • the rotating axis 233 and the sliding carriage unit 250 have the mutually contacting surface cleaned or lubricated automatically by the vacuum motor 257, brushes 255 and the lubricant supply device 259. If foreign matter such as dust that is generated during work penetrates into the contact surface between the rotating axis 233 and the sliding carriage unit 250, the sliding carriage unit 250 is not moved smoothly along the rotating axis 233, so foreign matter is removed using brushes 255. Removed foreign matter is discharged out of the sliding carriage unit 250 and rotating axis 233 by the vacuum motor 257. And a small quantity of lubricant is supplied to the brushes 255 from the lubricant supply device 259, so the sliding carriage unit 250 is moved more smoothly along the rotating axis 233.
  • the apparatus 200 for interior work of a tank-type structure has the operating unit 230 fixed more stably by the lower fixed unit 270.
  • the stopper pin 275 is moved upward and exposed from the lower fixed body 273 by the cylinder 277 to be inserted into the insertion slot 233b formed at the end of the rotating axis 233. Therefore, the bottom end of the rotating axis 233 is supported by the stopper pin 275 when the rotating axis 233 is rotated, so shaking of the rotating axis 233 is prevented.
  • the first working arm 223 and second working arm 229 and sliding boom 225 are pivoted toward the rotating axis 233 using first and second winches 235 and 237 so as to move the apparatus 200 for interior work through the top opening 51 of the small cargo hold 50. Simultaneously with this, the size of the apparatus for interior work is minimized by inserting the second working arm 229 and sliding boom 225 into the first working arm 223 and second working arm 229 so as to minimize the length of the working unit 220.
  • the apparatus for interior work of a tank-type structure according the second embodiment of the present invention configured as described above is easy to install and remove by fixing it to the small cargo hold 50 using the first upper fixed plate 211 and second upper fixed plate 212, after inserting it through the top opening 51 installed on the tank-type small cargo hold 50. Also, since the rotating axis 233 is rotated while being supported by the lower fixed unit 270, the load acting on the small cargo hold 50 during operation is reduced to prevent deformation of the small cargo hold 50.
  • an apparatus for interior work of a tank-type structure with which it is possible to safely and easily carry out the interior work of a structure, which may be a cargo hold of a ship, large containers and tank-type structures for a ship, factory and power plant.

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  • Combustion & Propulsion (AREA)
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  • Jib Cranes (AREA)

Abstract

L'invention concerne un appareil qui permet à une personne de travailler de façon sûre à l'intérieur d'une grande structure de type réservoir. L'appareil de la présente invention est caractérisé par le fait qu'il comprend une unité fixe disposée dans une structure de type réservoir, un plateau de travail prévu pour que l'ouvrier puisse monter dessus, lequel plateau est installé dans l'unité fixe de façon à tourner simultanément avec son déplacement vers le haut et vers le bas dans la structure, une unité de travail déployée ou rentrée à partir de l'unité fixe, et une unité d'entraînement montée sur l'unité fixe pour faire tourner et déplacer l'unité de travail de haut en bas. En conséquence, étant donné que le plateau de travail sur lequel l'ouvrier peut monter est fixé de façon stable dans la structure, celui-ci non seulement peut travailler de façon sûre, mais encore le temps pour installer et retirer le plateau de travail dans la structure est réduit, ce qui réduit considérablement la période de construction de navire
PCT/KR2007/005175 2006-12-29 2007-10-22 Appareil permettant de travailler à l'intérieur d'une structure de type réservoir Ceased WO2008082068A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2006-0138523 2006-12-29
KR1020060138523A KR100781316B1 (ko) 2006-12-29 2006-12-29 탱크형 구조물 내부공사를 위한 슬라이딩캐리지장치
KR1020070037579A KR100901114B1 (ko) 2007-04-17 2007-04-17 탱크형 구조물 내부 작업을 위한 바닥고정형 작업장치
KR10-2007-0037579 2007-04-17

Publications (1)

Publication Number Publication Date
WO2008082068A1 true WO2008082068A1 (fr) 2008-07-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/005175 Ceased WO2008082068A1 (fr) 2006-12-29 2007-10-22 Appareil permettant de travailler à l'intérieur d'une structure de type réservoir

Country Status (1)

Country Link
WO (1) WO2008082068A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6346993A (ja) * 1986-08-15 1988-02-27 Mitsui Eng & Shipbuild Co Ltd 船舶の建造方法
KR20010082099A (ko) * 2000-02-10 2001-08-29 추후제출 다양한 형태의 용적용 스캐폴딩 시스템
JP2004083260A (ja) * 2002-08-28 2004-03-18 Akira Sugimoto 生活支援具移動装置
KR100601019B1 (ko) * 2004-12-17 2006-07-18 Stx조선주식회사 선박내부의 고소작업을 위한 비구동식 신축다관절 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6346993A (ja) * 1986-08-15 1988-02-27 Mitsui Eng & Shipbuild Co Ltd 船舶の建造方法
KR20010082099A (ko) * 2000-02-10 2001-08-29 추후제출 다양한 형태의 용적용 스캐폴딩 시스템
JP2004083260A (ja) * 2002-08-28 2004-03-18 Akira Sugimoto 生活支援具移動装置
KR100601019B1 (ko) * 2004-12-17 2006-07-18 Stx조선주식회사 선박내부의 고소작업을 위한 비구동식 신축다관절 장치

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