JPH03581A - Vacuum attracting travel device - Google Patents

Abstract

PURPOSE:To enlarge the range and content of work at the high place of a large structure and the like and enable continuous travel and movement for many hours by fitting a cover for partitioning a pressure reducing space between the cover and the wall surface to a wall surface attracting travel means through elevating and turning functions. CONSTITUTION:A pair of attracting belts 1 are totally enclosed by a bowl like cover 14. This cover 14 is adhered to the wall surface 5 evacuating the interior and formed to be adhered in the chamber of a large area. At the non- working time, the attracting belts 1 and the bowl like cover 14 are simultaneously adhered, thus obtaining large attracting force. A filter for removing large dirt is disposed in the attraction chamber of the attracting belt 1, and thus the sucking ability can be maintained for many hours. In addition, the angles of the bilateral attracting belts 1 are changeable in the hinged state. Accordingly, even in case the object wall surface 5 is the cylindrical curved face 5' or the like, the adhesion to the cylindrical curved face 5' can be made by the attracting belts 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wall suction and movement device for inspecting and performing other work in places where it is difficult for people to easily access, such as in high places of large structures. be.

``Conventional technology'' Conventionally, structures with walls or fixed points located at high places, such as chimneys, large tanks, and bridges, require self-propelled vehicles for work at heights for periodic inspection, cleaning, and repair. There were various seed devices.

Among these, there is a self-propelled wall suction device equipped with a crawler having a continuous vacuum suction structure as shown in FIGS. 10 and 11.

To explain this self-propelled device, 01 is an adsorption belt (endless crawler belt), 02 is an adsorption chamber, 03 is a vacuum chamber, 04 is a body filter, 05 is an ejector (vacuum generator), 06 is compressed air,
o7 is an exhaust, o8 is an outer frame, 09 is a wall surface, 010 is a suction pad (positioned in the center), 011 is a motor for driving the suction belt, and 012 is a fixed frame.

This device supplies compressed air 06 to the ejector 05 to generate a vacuum. This is passed through the filter 04 to the vacuum chamber 03.
At the same time, the inside of the chamber formed by the vacuum chamber 03, the adjoining adsorption chamber 02, and the wall 09 is made negative pressure, and the vacuum is adsorbed to the wall 09 due to the pressure difference from the atmospheric pressure. Drive this suction belt 01 - [
--By being driven by the motor 011, it adsorbs and travels on the wall surface 09.

Here, a suction pad 010 is provided for parallel movement in a direction perpendicular to the running direction. Furthermore, this suction pad 01
It has the ability to rotate around 0.

“Problems to be Solved by the Invention” (1) In the conventional method, when changing the moving direction of the self-propelled device body (lateral parallel movement or turning), the running suction belt 01 is separated from the wall surface 09, and the center It is necessary to suction and hold the entire device only with the band of the suction chamber 02, which has a small size.

(2) In addition, in the conventional method, paint film fragments that have peeled off from the wall surface 09 are sucked from the adsorption chamber 02 and directly captured by the filter 04, which reduces the suction ability in a short period of time.
4. Replacement/maintenance is required.

(3) Furthermore, in the conventional method, a pair of left and right suction belts 01
is fixed to a fixed frame 01'2, and if the object is a cylinder, for example, a gap is created between the suction belt 01 and the wall surface 09, and the suction cannot be performed.

There were other issues.

"Means for Solving the Problems" The present invention solves the above-mentioned conventional problems, and includes a cover that houses a wall suction traveling means inside and defines a depressurized space between the wall surface and the q wall surface. This is a vacuum suction traveling device that is attached to the suction traveling means via an elevating and rotating mechanism.

In other words, regarding the previous item (1), suction belts (pair)
The whole thing was enclosed in a bowl-shaped cover, which was attached tightly to the wall, and the interior was evacuated to allow suction to be carried out in a large-area chamber. Furthermore, by simultaneously suctioning the suction belt and the bowl-shaped cover when stopping work, a large suction force can be obtained, making it possible to perform cleaning and other repair work that was previously impossible due to the large reaction force.

Regarding (2) above, a filter is installed inside the adsorption chamber, which allows coarse dust to be removed and the suction ability to be maintained for a long time. (When the belt separates from the wall surface, it comes off.) Furthermore, regarding the previous item (3), the left and right suction healds are made hinge-like so that the angle can be changed, thereby solving the above problem.

"Function" Since the present invention has the above-described configuration and functions, it is possible to carry a relatively large weight, and it is also possible to carry out work with a large reaction force, resulting in a wide range of applications.

Furthermore, the cylindrical structure can be raised and lowered, and there are two filters.
Because it is attached to a stage, the adsorption performance does not deteriorate and it can be used for a long time.

"Example" An embodiment of the present invention is shown in FIGS. 1 to 9.

1 is a suction belt, which is annular and has a large number of suction chambers 2;
The adsorption chamber 2 is provided with a plurality of perforations 3 for vacuum suction, and is vacuum-suctioned by the vacuum chamber 4 and adsorbed onto the wall surface 5 .

6 is a cylindrical filter, 7 is a drive motor, 8 is a drive bevel gear unit, 9 is a drive pulley, and 10 is a timing belt that receives driving force, which are arranged on both sides of the suction belt 1. A drive motor 7 receives a driving force from a gear pulley 11 through a driving bevel gear unit 8 while supporting the suction belt 1 with a driving pulley 9.

That is, the suction heald 1 is driven by the drive motor 7 and travels while adsorbing. 12 is a tension adjustment screw for the suction belt 1.

13 is a motor unit with a reduction gear for rotating the cover 14, and 15 is an air cylinder for raising and lowering the cover 14.

When changing the running direction, the cover 14 is brought into close contact with the wall surface 5, the inside of the cover 14 is vacuum-suctioned, and then the suction belt 1 is separated by the left and right cylinders 15 (at this time, the suction of the suction heald 1 is stopped). ), it is rotated by the motor unit 13 with a reduction gear, and when a predetermined angle is reached, the suction belt 1 is brought into close contact, vacuum suction is performed, and the cover 14 is raised in this order to complete the direction change.

Here, 16 is a sponge-like sealing material attached to the periphery of the cover 14.

Reference numeral 17 denotes a wheel equipped with an air cylinder to prevent the vehicle from sinking when the vehicle is traveling (ascending and descending) (if the front section sinks, the rear section will float and the suction force will be weakened). 18 is a small camera for monitoring the points, and 19 is a manipulator. 20 is a hinge mechanism that adjusts the angle of the left and right suction healds.

Note that 1'' in FIG. 2 is a suction belt whose angle is adjusted to a cylindrical curved surface 5''.

4 to 8 are detailed views of the suction belt of the vacuum suction traveling device.

This is a coating layer treated to reduce (frictional resistance). (The vacuum chamber 4 is fixed, and the suction belt 1 is movable.) 23 is an open-cell sponge filter fitted into the suction chamber 2, and paint film pieces and the like are captured by the suction action.

Thereafter, when the part moves away from the wall surface 5 due to running, the paint film pieces separate, so there is no reduction in suction ability due to accumulation.

Figure 9 is a piping system diagram of the vacuum suction traveling device of this embodiment.
24 is a pressure indicator inside the vacuum chamber 4, 24゛ is a cover 14
This is the internal pressure indicator.

25 is for ON/OFF of various air cylinders and suction help)
The control unit for controlling the suction on/off of the suction switch and the cover 14 is not described in detail because it is composed of the -ta-like piping 5 solenoid valve and the like.

Note that the control unit and the main body of the vacuum suction traveling device are connected by an air hose and an electric cable. 26.26″
is a filter, and 27.27 is an ejector.

Although the configuration 1 of the present invention has been explained using a crawler-type wall traveling device, the present invention is not limited to this type, and can also be applied to a suction band type or one using an electromagnetic caterpillar.

"Effects of the Invention" Since the present invention is the above-mentioned device, the scope and content of work on large structures at high places can be expanded, and it can run and move continuously for long periods of time, increasing the degree of freedom of work. Therefore, it is extremely useful for industry.

[Brief explanation of the drawing]

Figures 1 to 1) Figure 1 is an embodiment of the present invention; Figure 1 is a plan view, Figure 2 is a front view, Figure 3 is a side view, and Figure 4 is a longitudinal section. Fig. 5 to 1 lock Fig. 6 is a view in the direction of arrow A and arrow B in Fig. 4, respectively, Fig. 7 is a detailed view of section C in Fig. 4, and Fig. 8 is a side view of Fig. 5. , FIG. 9 is a piping system diagram, FIG. 1θ and FIG. 11 are conventional wall suction traveling devices, FIG. 1θ is a side view, and FIG. 11 is a plan view. 1: Adsorption belt 2: Adsorption chamber 3: Hole 4: Vacuum chamber 4°: Vacuum chamber partition 5: Wall surface 6: Cylindrical filter 7: Drive motor 8; Drive bevel gear unit 9: Drive pulley 10: Timing helmet 11: Gear pulley 12: Adjustment screw 13: Motor unit with reduction gear 14: Cover 15: Air cylinder 16; Seal material 17: Wheel 18: Small camera 19; Manipulator O: Hinge mechanism 21: Base material 2: Coating layer 23 ; Filter 4: Pressure indicator 25: Control unit 6.26'
: Fill 7.27° : Ejector

Claims (1)

[Claims] 1. A vacuum suction traveling device, characterized in that a wall suction traveling means is housed therein, and a cover defining a depressurized space between the wall suction traveling means and the wall surface is attached to the wall suction traveling means via an elevating and rotating mechanism. .