JP2000053083A - Rust removing device for ship body outer board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform rust removing work for a ship body outer board by a remote control operation. SOLUTION: A tow truck 1 attracted to the surface of a ship body outer board 6 to travel itself is constructed in such a manner that rubber wheels 3a and 3b independently driven by motors 14a and 14b are provided in the front left and right positions of a truck frame 2, a caster 4 is provided in the center of a rear portion, and a permanent magnet 5 is provided in a lower surface. To be protruded downward from the opening 20 of a truck frame 19, a cleaning brush 9 driven by a cleaning brush driving motor 8 is provided to form a cleaning truck 7. The cleaning truck 7 is connected to the tow truck 1 by a hinge 27, and the cleaning brush 9 is always pressed to the ship body outer board by a spring 29. By a control board 10, the driving of each of the motors 14a and 14b and the cleaning brush driving motor 8 is performed from an operation panel 11 based on a remote control operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rust removing device for a hull outer plate, and more particularly to a rust removing device for a hull outer plate suitable for performing a rust removing operation on a bent outer plate portion.

[0002]

2. Description of the Related Art Conventionally, when performing rust removing work on a hull outer plate, as shown schematically in FIG. 3, an aerial work vehicle b is positioned beside a hull a and the aerial work vehicle b An operator e rides on a scaffold d attached to the tip of the boom c, and the operator e uses a power tool f such as an air machine to manually clean all the hull outer panels g.

[0003]

However, in the case of the above-mentioned conventional system, there is a problem that a worker e needs to work at a high place. In addition, since the hull outer panel g having a large area is manually cleaned. However, there is a problem that a large amount of labor is required, and there are individual differences in the work quality of rust removal. In addition, hull blocks and large outfittings are placed at the bottom of the culvert, and depending on the work area, There is also a problem that the work vehicle b may not enter.

Recently, a rust removing device for mechanically and automatically polishing the flat portion of the hull skin g has been developed. In such a case, it is impossible to imitate such a rust removing device, and in the case of a bent outer plate, it is necessary to rely on manual work.

Accordingly, the present invention is to provide a rust removing device for a hull outer plate which can mechanically process a bent outer plate portion which can be conventionally done only by manual work, without being affected by the condition of the culvert. It is assumed that.

[0006]

In order to solve the above-mentioned problems, the present invention provides left and right rubber wheels which can be individually driven at the front, a caster at the rear center, and a hull outer plate on the lower surface. The front end of a trolley equipped with a rotatable cylindrical cleaning brush for cleaning the hull, at the rear end of a traction trolley fitted with a magnet that applies an attractive force in a non-contact manner Part, swingably connected in the up and down direction, and between the towing truck and the polishing truck, a spring interposed and provided to apply a pressing force to the hull outer plate side to the grinding truck. I do.

When the towing truck travels along the hull outer skin, the polishing bogie is pressed against the hull outer skin. Rust removal work is performed efficiently.

[0008] Further, by using a caster as a twin-wheel type caster, the towing vehicle can turn smoothly on the spot, so that the hull outer plate can be uniformly rust-removed.

[0009] Further, a control device for controlling a rubber wheel drive motor provided on the towing vehicle, a brush driving motor provided on the polishing vehicle, and an operation panel for remotely controlling the control by the control panel are provided. With this configuration, automation becomes possible.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

1 (a), (b), (c), and (d) show an embodiment of a rust removing device for a hull outer plate according to the present invention. And drivable rubber wheels 3a and 3b.
A caster 4 is provided at the rear center position, and a permanent magnet 5 for applying an attractive force to the hull outer plate 6 in a non-contact manner is provided on the lower surface of the bogie frame 2 so as to extend along the surface of the hull outer plate 6. A traction truck 1 adapted to be able to travel, and a polishing brush 9 rotatably driven by a drive motor 8, wherein the polishing brush 7 is pulled by the traction truck 1 in a state where the polishing brush 9 is pressed downward. A control panel 10 for controlling the driving of each of the rubber wheels 3a and 3b of the towing truck 1 and the polishing brush 9, and an operation panel 11 for remotely controlling the control by the control panel 10. A configuration is provided.

More specifically, the towing truck 1 is provided with a fixed shaft 12 extending in the left-right direction at the front of the bogie frame 2.
Rubber wheels 3a and 3b are rotatably mounted on both ends of the fixed shaft 12, respectively, and spur gears 13 for power transmission are integrally provided on inner side surfaces of the rubber wheels 3a and 3b. Are mounted at front and rear positions of the fixed shaft 12 with motors 14a and 14b rotatable in both forward and reverse directions, respectively, in opposite directions.
The output gear 16 of the speed reducer 15 connected to the spur gear 13 is engaged with the spur gear 13 integrated with the rubber wheels 3a and 3b, respectively, and the right rubber wheel 3a is driven by one motor 14a.
However, the left rubber wheel 3b is independently driven to rotate by the other motor 14b, and further,
An opening 17 is provided in the center of the rear part of the bogie frame 2, a box-shaped member 18 is attached from above to cover the opening 17, and a two-wheeled caster 4 is provided at the center of the ceiling of the box-shaped member 18.
And a hull shell 6 on the lower surface of the bogie frame 2.
A permanent magnet (high magnetic force plate magnet) 5 for applying an attractive force in a non-contact manner to the hull is attached, and the rubber wheels 3a, 3b and the two-wheel type casters 4 can travel while adsorbing on the surface of the hull outer plate 6. It is like that.

The polishing cart 7 has an opening 20 extending in the left-right direction at the rear of the cart frame 19.
A shaft 21 extending in the left-right direction is rotatably disposed above the
A cylindrical cleaning brush 9 is attached to the shaft 21 so that the lower portion of the cleaning brush 9 projects below the opening 20. One end of the shaft 21 for power transmission is mounted on the shaft 21. A pulley 22 is attached, and on the other hand, an abrasive brush drive motor 8 is installed at the front of the bogie frame 19.
An endless belt 25 for power transmission is wrapped between a pulley 24 provided on the shaft 23 and the pulley 24, and the cleaning brush 9 is rotated by the driving of the cleaning brush drive motor 8. It is like that.

Further, a supporting member 26 projects upward from the rear end of the bogie frame 2 on the towing bogie 1, and the bogie frame 1 of the polishing bogie 7 is provided at an upper end of the supporting member 26.
The front side of the trolley frame 9 is pivotably mounted in the up-down direction by a hinge 27. , A compression spring 29 is interposed therebetween, and the repulsive force of the spring 29 causes the front end of the cleaning carriage 7 to be pushed upward with the hinge 27 as a fulcrum, whereby the rear end is pushed down and the cleaning brush 9 Is always pressed downward, that is, toward the hull skin 6. The compression spring 29 is held by a bolt 28 erected on the bogie frame 2 so as to penetrate through the hole 30 on the bogie frame 19 and protrude upward. The amount of compression of the spring 29 can be adjusted by adjusting the amount of tightening of the nut 31 screwed to the upper end, so that it is possible to cope with the case where the cleaning brush 9 is worn.

The control panel 10 is installed on the bogie frame 2 of the towing bogie 1 and has a power lamp 32, an overload lamp 33, an abnormality indicating lamp 34, and the like. Activation stop button 3 for drive motor 8
8 and emergency stop button 39 and each rubber wheel 3 of the towing truck 1
It is configured to be connected via a cable 41 to an operation panel 11 having a snap switch 40 and the like for controlling a and 3b by manual control. Although not shown, a proximity sensor, a limit switch, a rotary encoder, and the like required for remote control are mounted at required positions on the front end of the bogie frame 2 of the towing bogie 1.

In FIG. 1, reference numeral 35 denotes a power cable for connecting the control panel 10 to a power source (not shown) for supplying electricity to the control panel 10, and reference numeral 36 denotes a state in which the tow truck 1 attached to the hull outer panel 6 is removed. , A bearing for the rubber wheels 3a and 3b, a bearing 43 for the shaft 21 that rotates integrally with the brush 9 and a bearing 44 for supporting the shaft 23 of the brush driving motor 8. Further, in order to ensure safety, the device of the present invention is provided with a fall prevention safety wire (not shown).

When performing the rust removing operation of the hull outer panel 6, as shown in FIG. 2, for example, the towing truck 1 is turned upward, and the lower end left end of the hull outer panel 6 in the rust removing section is set. After being sucked to the position, the automatic start button 37 of the operation panel 11
First, the left and right rubber wheels 3a, 3b are driven forward by the motors 14a, 14b, respectively, and the towing vehicle 1 is caused to travel up the hull outer panel 6. next,
As shown by the two-dot chain line in FIG. 2A, when the towing vehicle 1 approaches the upper end of the hull outer panel 6 and the upper end of the hull outer panel 6 is detected by the sensor, the motor 14 on the front side at that position is detected.
When a is reversed, the right rubber wheel 3a is driven in reverse (reverse rotation), and the vehicle turns rightward by 90 ° rightward. Thereafter, both the rubber wheels 3a and 3b are driven forward so as to travel rightward on the surface of the hull outer plate 6 by a predetermined distance, and then, by the reverse drive control of only the right rubber wheel 3a, 90 ° again as described above. A right turn in-situ turn is performed, and the towing vehicle 1 is directed downward. Thereafter, the two rubber wheels 3a and 3b are driven forward, whereby FIG.
As shown by the chain line in FIG.
When the towing vehicle 1 approaches the lower end portion of the hull outer panel 6, detection by a limit switch is performed, and this time, the reverse drive of the left rubber wheel 3b by reverse rotation of the rear motor 14b is performed. The control is appropriately performed to change the direction of the towing vehicle 1 in the ascending direction, and thereafter, the same control as described above is repeated, so that the towing vehicle 1 cleans the surface of the hull outer panel 6 in the rust removing section. The vehicle can be made to travel all the way from the left end to the right end.
The rust removing operation of the hull outer panel 6 is carried out by the cleaning brush 7 which is driven by the cleaning brush driving motor 8 while the abrasive brush 9 is constantly pressed against the hull outer panel 6. The sections will be thoroughly scrubbed to remove rust.

In the above description, since the left and right rubber wheels 3a and 3b of the traction cart 1 are individually driven independently, the control for appropriately rotating and stopping the rubber wheels 3a and 3b in the opposite directions is performed. Can make a turn on the spot, and at this time, a two-wheel type caster 4 is used as a rear wheel.
Is used, the vehicle can smoothly follow the vehicle when turning, so that the vehicle can travel freely and can perform rust removal work evenly. Since the attraction force to the hull skin 6 is generated in a non-contact manner and the brush 29 is constantly pressed against the hull skin 6 by the spring 29, the hull skin 6 is vertically or overlying. Even if it is hung, it can travel easily, and the upper and lower ends of the hull outer plate 6 are detected by sensors, limit switches, etc. The hull hull can be automatically de-rusted on the curved outer plate without the need for labor-intensive manual operations as in the past. Can be performed more, also, it is possible to achieve also uniformity of rust removal work.

Note that the present invention is not limited to the above-described embodiment, and the connection between the towing carriage 1 and the cleaning carriage 7 is arbitrary as long as the cleaning brush 9 is pressed down. That the traveling pattern of the towing truck 1 in the rust removing work section may be freely determined by a combination with a detection device such as a sensor or a limit switch. The tow truck 1 is moved to an arbitrary position by remote control,
By rotating the cleaning brush 9 at this position,
Rust removal work may be performed, and the towing truck 1
A trolley for holding blast nozzles for blast processing of hull outer plate welds, a trolley for steel structure, rust removal of large cranes, a trolley for painting work, a trolley for mounting various inspection equipment for steel structures,
Of course, it can be diverted as a bogie for mounting an automatic welding machine, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0020]

As described above, according to the rust removing apparatus for a hull shell of the present invention, the following excellent effects are exhibited. (1) A tow truck equipped with left and right rubber wheels that can be individually driven at the front, a caster at the center of the rear, and a magnet attached to the lower surface that applies a suction force to the hull outer plate without contact. At the rear end, a front end portion of a sweeping bogie provided with a cylindrical scouring brush for rotatably driving a hull outer plate is rotatably connected to the front end portion, and the towing bogie is connected to the front end portion. A spring for applying a pressing force to the hull outer plate side is installed between the trolley and the trolley, so the combination of the left and right rubber wheels and casters provided on the traction trolley The traveling of the towing truck can be freely performed, and the attracting force of the permanent magnet allows the vehicle to travel on a vertical or overhanging hull outer plate surface, and is affected by the condition of the bottom. Work area without rust The entire outer hull surface of the inner hull can be run over the entire surface. At this time, the rotating brush is always pressed against the outer hull surface. The rust removing operation can be performed without any trouble, and the rust removing operation in the rust removing work section can be efficiently performed without the need for the manual rust removing operation requiring much labor as in the conventional art. (2) Since the caster is a twin-wheel caster, turning on the spot can be performed smoothly, so that rust removal can be performed evenly. (3) A configuration including a rubber wheel drive motor installed on the towing truck, a control panel for controlling the brush brush drive motor installed on the polishing cart, and an operation panel for remotely controlling the control by the control panel. By doing so, automation becomes possible.

[Brief description of the drawings]

1 shows an embodiment of a rust removing device for a hull shell of the present invention, wherein (a) is a schematic plan view, (b) is a schematic side view, (c) is a schematic diagram of a control panel, (D) is a schematic diagram of the operation panel.

FIGS. 2A and 2B show a state in which a rust removing operation is performed by the apparatus shown in FIG. 1, wherein FIG. 2A is a schematic diagram showing a traveling pattern, and FIG. is there.

FIG. 3 is a schematic diagram showing an example of a conventional rust removing operation method for a hull shell.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traction truck 3a, 3b Rubber wheel 4 Caster 5 Permanent magnet (magnet) 6 Hull outer plate 7 Polishing truck 8 Drive motor 9 Polishing brush 10 Control panel 11 Operation panel 14a, 14b Motor 29 Spring

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Market Masamichi 2-1 Showa-cho, Kure City, Hiroshima Prefecture Inside Kure Daiichi Plant, Ishikawajima Harima Heavy Industries, Ltd. (72) Inventor Kiyofumi Hamasaki 2 Showa-cho, Kure City, Hiroshima Prefecture No. 1 Ishikawajima-Harima Heavy Industries Co., Ltd. Kure Daiichi Plant (72) Inventor Takeshi Imada 2-1 Showa-cho, Kure-shi, Hiroshima Pref.

Claims (3)

[Claims] 1. A towing vehicle having left and right rubber wheels which can be individually driven at a front portion, a caster at the center of a rear portion, and a magnet attached to a lower surface for applying an attraction force to a hull outer plate in a non-contact manner. A front end portion of a sweeping bogie provided with a rotatable driving of a cylindrical scouring brush for sharpening the hull outer plate is connected to a rear end portion of the bogie so as to be swingable up and down, and the towing is performed. A rust removing device for a hull outer plate, comprising a spring interposed between a bogie and a polishing bogie to apply a pressing force to the hull outer plate side. 2. The rust removing device for a hull shell according to claim 1, wherein the casters are twin-wheel casters. 3. A control device for controlling a rubber wheel drive motor mounted on a towing vehicle, a polishing brush drive motor mounted on a polishing vehicle, and an operation panel for remotely controlling the control panel. The rust removing device for a hull shell according to claim 1 or 2.