JPS59150397A - Clean-up device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cleaning device for cleaning a wall surface of, for example, a lining tank.

[Technical Background of the Invention] For example, in a nuclear power plant, a large number of lined tanks lined with stainless steel or the like are provided.

Conventionally, such cleaning work of the lining tank has been performed manually. When cleaning the lining tank manually, there are methods in which a scaffold is erected in advance inside the lining tank, and a worker climbs into a gondola and performs the cleaning.

[Problems with the background technology] However, when scaffolding is erected in this way, a large number of man-hours are required to assemble the scaffolding, and when cleaning work is carried out on a gondola, cleaning water is There is a problem in that the cleaning worker is left in a very unstable state due to the reaction force.

Furthermore, especially when cleaning a lining tank contaminated with radioactive substances, such as in a nuclear power plant, there is a risk that workers may be exposed to a large amount of radiation.

[Object of the Invention] The present invention has been made in response to such conventional circumstances,
It is an object of the present invention to provide a cleaning device that can freely clean the wall surface of a lining tank or the like by remote control.

[Summary of the Invention] That is, the cleaning device of the present invention includes a cleaning device main body that is provided with an endless track, moves the wall surface to be cleaned by driving the endless track, and a cleaning device disposed in the cleaning device main body that moves the wall surface to be cleaned by driving the endless track. This cleaning device includes an adsorption member that periodically attracts a wall surface to be cleaned, and a cleaning mechanism disposed in the main body of the cleaning device to clean the wall surface to be cleaned.

[Embodiment of the Invention] The details of the present invention will be described below with reference to an embodiment shown in the drawings.

FIG. 1 is a partially sectional plan view of an embodiment of the present invention, and FIG. 2 is a side view thereof.

At 83 in FIGS. 1 and 2, reference numeral 1 designates a main body of the cleaning device, on the sides of which a pair of endless tracks 2.2 are arranged with their tracks parallel to each other. Each endless track 2 has 9
A drive wheel 4 driven by a drive device 3 such as a motor, a driven wheel 5 that rotates in conjunction with the drive wheel 4, and auxiliary wheels 7, 7 for installing the track 2 on the wall surface 6 to be cleaned.・・・
・It is composed of. Further, an inner endless track 8 is disposed inside the endless track 2, and this inner endless track 8 has a small driving wheel 9 and a small driven wheel 10 that are coaxially supported by the driving wheel 4 and the driven wheel 5 and rotate. , a pair of idler wheels 11. are arranged at a distance between these two wheels as two side sets.
12, and idle wheels 11.12 are arranged horizontally above the auxiliary wheels 7.7.

Between the endless track 2 and the inner endless track 8, a suction grounding mechanism 13 whose both ends are fixed to both the tracks is installed at a distance. As shown in FIG. 3, this suction/grounding mechanism 13 includes a suction cup-shaped suction member 14 having an opening at the bottom and a suction surface on the inside for adhering to the wall surface to be cleaned;
A cylinder 16 provided at the bottom of 4 via a communication pipe 15.
It is composed of a piston 17 inserted into the cylinder 16 so as to be able to move vertically, and an elastic member 19 such as a spring provided at the upper end of the piston 17 with a spacing member 18 interposed therebetween. 2 has the suction member 14
The inner endless track 8 has an end portion of an elastic member 190 attached to a mounting plate 20 fixed to the track.

The spacing member 18 is used to maintain a distance between the upper end of the piston 17 and the mounting plate 20 at a certain level or more, and therefore its upper portion is movable relative to the mounting plate 20.

A cleaning mechanism 22 covered with a cover 21 is disposed in front of the cleaning device main body 1, and this cleaning mechanism 22 includes a pair of cleaning members 23 such as rotating brushes, and each cleaning member 23 is attached to a shaft. It consists of a rotating shaft 24 to which the rotating shirts are installed, and a driving device 26 such as a motor, which is disposed on the rotating shirts l to 24 with bevel gears 25 interposed therebetween.
A cleaning water nozzle 27 is inserted into the interior of the cleaning water nozzle 4 .

The operation of the cleaning device configured as described above will be explained below.

That is, when the drive wheel 4 is rotated by the drive device 3 in the direction of the arrow in FIG. is moved.

Here, since the inner endless track 8 is formed to pass between a pair of idler wheels 11a, 11b or 12a, 12b, between the pair of idler wheels 11.12, the inner endless track 8 is The distance is wider than others.

In other words, as shown in FIG. 4, the adsorption/grounding mechanism 13 disposed between the endless track 2 and the inner endless track 8 causes the e-stone 17 in the cylinder 16 to elongate as the elastic member 19 extends. Since the suction member 14 is pushed up and the inside of the suction member 14 is drawn to negative pressure, the suction member 14 can reliably suction onto the wall surface to be cleaned. When the suction/grounding mechanism 13 passes the idler wheel 12, it returns to its normal state as shown in FIG. 3 and loses its suction function.

In this way, when the endless track 2 and the inner endless track 8 are between the idler wheels 11 and 12, the cleaning device main body 1 can adsorb to the wall surface 6 to be cleaned at the same time as it touches the ground, and can avoid sliding on the wall surface 6 to be cleaned. You can move without any problems. Note that operations such as changing the direction of the cleaning device main body 1 can be easily performed by controlling the rotation speed of the pair of drive wheels 4.4.

On the other hand, in the cleaning mechanism 22, the driving force from the pair of drive devices 26 is applied to the bevel gear 25, the rotating shaft 24, and the cleaning member 2.
At the same time, -C cleaning water is supplied from a separately provided cleaning water tank through a cleaning water nozzle 27 to clean the wall surface 6 to be cleaned. At this time, the cover 21 fitted over the cleaning mechanism 22 can prevent contaminated water from scattering. In order to prevent the running performance of the cleaning device main body 1 from being deteriorated due to the reaction force generated by the cleaning part vJ23, it is preferable that the driving device 26 controls the rotation directions of the cleaning members 23 to be opposite to each other.

FIG. 5 illustrates a situation in which the side wall of, for example, the lining tank 28 is being cleaned using the cleaning device constructed and operated as described above. The worker is in the lining tank 28
It is possible to avoid radiation exposure due to the cleaning wastewater by remotely controlling the cleaning device at a location away from the wall surface to be cleaned using the control device 29 connected to the drive device 3.26 of the cleaning device.

[Effects of the Invention] As described above, according to the cleaning device of the present invention, the IC can quickly and reliably clean the wall surface to be cleaned by remote control, thereby reducing the number of workers and shortening the working time. be able to.

Furthermore, if the device of the present invention is used in a lined tank or the like to which radioactive substances have adhered, radiation exposure of workers can be significantly reduced.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a cleaning device according to an embodiment of the present invention, FIG. 2 is a side view of the cleaning device shown in FIG. 1, and FIG. 3 is a3
and FIG. 4 are enlarged sectional views of the suction/grounding mechanism shown in FIG. 2, and FIG. 5 is a schematic diagram showing its usage. 1......Cleaning device body 2...
...... Endless track, 3.26... Drive equipment 6... Wall surface to be cleaned 8...
・・・・・・Inner track 13・・・・・・・・・・・・
・Adsorption grounding mechanism 14・・・・・・・・・Adsorption member 15・・・・・・・・・Communication pipe 16・・・・・・・・・・・・Cylinder 17・・・・・・・
・・・・・・Piston 19・・・・・・・・・・・・
Elastic member 22......Cleaning mechanism 23.
...... Patent attorney representing cleaning parts Noriyuki Chika (and 1 other person) Figure 1 Figure 2 Figure 7 Figure 3 Figure 4 Figure 5 576-

Claims (2)

[Claims] (1) A main body of the cleaning device that moves over the wall surface to be cleaned by driving an endless track, an adsorption/grounding mechanism disposed in the main body of the cleaning device that periodically attracts the wall surface to be cleaned by the drive of the endless track, and the cleaning device A cleaning device comprising a cleaning mechanism disposed in the device main body and cleaning the wall surface to be cleaned. (2) The suction grounding mechanism consists of a suction member that is connected to the endless track of the cleaning device body and that suctions the wall surface to be cleaned, a cylinder that communicates with the suction member, and one end of the suction member that is inserted into the cylinder so as to be movable up and down. 2. The cleaning device according to claim 1, further comprising: a piston fixed to an inner endless track that interlocks with the endless track via an elastic member.