JPH11267561A - Posture keeping apparatus for surface treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a posture keeping apparatus for a surface treatment device wherein the posture keeping apparatus provided with the surface treatment device having a rotating body such as a brush with respect to a curved face, an inclined face or a vertical face can be kept at a definite posture without being brandished. SOLUTION: The posture keeping apparatus 1 provided with a surface treatment device having a rotating body 5 for surface treatment with a rotating shaft along a line in the direction being approximately at right angles to the face to be surface-treated is provided. In this case, a plurality of gas ejecting openings 3 for ejecting gas along the line in the direction at right angles are provided on the opposite side face of the face to be surface-treated and a gas injection opening 4 for preventing rotating from occurring injecting gas in the tangential direction of the rotating body 5 so as to generate one or more couples of forces is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment apparatus for cleaning, painting, blasting, heat-treating, welding or spraying the surfaces of tanks, vehicles, walls and the like having curved or inclined surfaces such as spherical surfaces and cylindrical surfaces. The present invention relates to a posture maintaining device for a surface treatment device that maintains a constant posture.

[0002]

2. Description of the Related Art When performing surface treatment such as painting and cleaning on curved surfaces of tanks such as spherical tanks and cylindrical tanks,
In the case of manual operation, whether the worker holding the tip processing tool part of the surface treatment device directly gets on the surface of the tank, gets on the gondola and approaches the surface, or approaches the surface with a work scaffold And go.

[0003] When an automatic machine such as a robot is used, the automatic machine equipped with the surface treatment device itself is moved along the surface, or the carriage carrying the object to be surface treated is moved. To perform surface treatment.

There is also a method in which a track body is directly mounted on an object to be surface-treated, and the surface treatment device is run on the track body.

[0005]

However, manual work requires not only a large amount of manpower but also work at a high place or on a curved surface in a tank or the like, which involves dangers. There are drawbacks such as

In the case where the surface treatment device is a rotating body such as a rotating brush, the worker must hold and prevent swinging, and the worker needs large arm strength, so that the worker is easily tired and sustained. There is no danger and there are many dangers.

Furthermore, a method using an automatic mechanical device such as a robot cannot cope with a variety of planar objects, and even if the surface shape is limited, it takes a great deal of time to accurately follow its trajectory. Since adjustment or setting operation is required, it is troublesome and has a drawback that equipment cost is large.

[0008] The method of directly mounting the track body cannot cope with a variety of face bodies, and requires a lot of labor and labor to attach and detach the track body and the device.

In view of the above, the present invention provides a surface treatment apparatus having a surface treatment device having a rotating body such as a rotating brush on a curved surface, an inclined surface, or a vertical surface, which can maintain a constant posture without being swung. An object of the present invention is to provide a posture maintaining device for the device.

[0010]

An attitude maintaining apparatus for a surface treatment apparatus according to the present invention includes a surface treatment apparatus having a rotating body for surface treatment having a rotation axis along a substantially perpendicular line to a surface to be treated. A plurality of gas ejection ports for ejecting gas along the perpendicular line on the side of the housing of the posture maintaining device opposite to the surface to be treated, and one or more couples. A rotation preventing gas outlet for ejecting gas in a tangential direction of the rotating body so as to cause the rotation is provided.

A posture maintaining device for maintaining a surface treatment device for treating a curved surface or an inclined surface in a fixed posture, wherein the right angle direction line is provided on a side of the housing of the posture maintenance device opposite to the surface to be treated. A plurality of gas ejection ports for ejecting gas along the line.

The housing may be provided with running means for running on the surface to be treated.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view showing an example of a tank cleaning device provided with a posture maintaining device according to the present invention, and FIG. 2 is a cutaway side view of the same part.

The housing 2 of the attitude maintaining device 1 has a hollow interior, and the housing 2 has a plurality of gas ejection ports for ejecting gas such as air in a direction perpendicular to a surface opposite to a surface to be cleaned. 3 are arranged. Gas is supplied to the housing 2 from a gas supply port via a hose from a gas supply source, and gas is supplied from the housing 2 to each of the gas ejection ports 3 to be ejected. The gas may be air unless otherwise specified.

A plurality of pairs of anti-rotation gas outlets 4 are arranged in the housing 2 of the attitude maintaining device 1 in pairs at 180 degrees apart from each other on a concentric circle along the tangential direction of the circle. Gas is directly supplied from the housing 2 to the anti-rotation gas outlet 4. When no rotational force is generated in the housing 2, the gas ejection port 4 may be, for example, a rotating brush 5.
If you do not install the
It may not be provided.

A rotary brush 5 for cleaning the tank surface is provided at the lower center of the housing 2. In the present embodiment, the rotating brush 5 is rotatably provided at the center lower portion of the housing 2. However, the driving type such as rotation or reciprocating motion of the rotating brush 5, the arrangement of the rotating brush, and the number of the rotating brush are subject to cleaning. It can be appropriately selected according to the object. Further, in addition to the rotating brush, a cleaning tool such as a spatula may be provided together or alone.

An air motor 6 is used as a rotary driving device of the rotary brush 5. The air from the air motor 6 is discharged from the muffler 7. Since the attitude maintaining device 1 uses air as a gas, it is preferable to use the air motor 6 as the rotation driving device, but another rotation driving device such as an electric motor may be used.

Next, a method of using the posture maintaining device of the present invention will be described.

FIG. 3 is a plan view showing an embodiment in which the cleaning device provided with the attitude maintaining device of the present invention is set on the surface of a tank, and FIG. 4 is a side view of the embodiment.

In this embodiment, a horizontal cylindrical tank 8 is cleaned, and a traveling trolley 9 moving along the cylindrical tank 8 is provided with a gate-type gantry 10 that straddles the cylindrical tank 8. Hoist 1 running on rail 11 above 10
2a and 12b are provided.

The cleaning device provided with the rotating brush 5 disposed on the surface of the cylindrical tank 8 is provided by the wire 13a from the hoist 12a or by the wire 13a from the hoist 12b.
b. The cleaning device is a hoist 12a
Is moved on the surface of the cylindrical tank 8 by rewinding the hoist 12b or reversing the hoist 12b or traversing the traveling vehicle 9. The attitude maintaining device 1 is supplied with gas from a gas supply source via a hose 14.

Next, the operation method will be described.

After the attitude maintaining device 1 provided with the cleaning device is set on the surface of the cylindrical tank 8, the gas is ejected from the gas ejection port 3 arranged on one side of the housing 2 of the attitude maintaining device 1. The attitude maintaining device 1 moves in the direction opposite to the gas ejection direction due to the reaction force generated by the ejection of the gas, and generates a force for pressing the rotating brush 5 against the surface of the cylindrical tank 8. This force and the reaction force when the rotating brush 5 comes into contact with the surface to be cleaned act on each other, so that the posture maintaining device 1 is maintained in a balanced and constant posture.

Similarly, when gas is ejected from the rotation preventing gas ejection port 4 arranged on one side of the housing 2 of the attitude maintaining device 1 in the tangential direction of the rotating brush 5 and in the direction opposite to the rotating direction of the rotating brush 5, A pair of couples is formed by the rotation-preventing gas ejection port 4. On the other hand, the posture maintaining device 1 tries to rotate in the same direction as the rotating direction of the rotating brush 5, but this force and the force when the rotating brush 5 comes into contact with the surface to be cleaned are offset by acting on each other, and the posture maintaining device 1 is maintained. The device 1 is maintained in a fixed posture without being swung in a balanced manner.

While rotating the rotating brush 5 of the cleaning device whose posture has been maintained by the posture maintaining device 1,
The surface of the cylindrical tank 8 can be cleaned smoothly by moving the a, 12b and the traveling cart 9.

FIG. 5 is a plan view showing another embodiment in which the cleaning device provided with the posture maintaining device of the present invention is set on the surface of a cylindrical tank, and FIG. 6 is a side view of the same.

On both sides of the cylindrical tank 8, traveling carts 15a,
15b, and winches 16a, 16b
Is provided on each of the traveling vehicles 15a and 15b. Each winch 16
a, 16b of the posture maintaining device 1
Is joined to. By operating to rewind one winch 16a when rewinding one winch 16a, the cleaning device can move on the surface of the cylindrical tank 8 through the wires 13a and 13b from the winches 16a and 16b. it can.

In the above configuration, after setting the posture maintaining device 1 provided with the cleaning device on the surface of the cylindrical tank 8,
When the gas is ejected from the gas ejection port 3 and the rotation-preventing gas ejection port 4, the posture maintaining device 1 is maintained in a constant posture by the operation described in the above embodiment. In this state, the movement of the traveling vehicles 15a, 15b and the winches 16a, 16a
The position of the attitude maintaining device 1 is changed by winding or unwinding the wires 13a and 13b of b, and cleaning is performed.

FIG. 7 is a plan view showing an example of a thermal spraying device provided with the attitude maintaining device of the present invention, and FIG. 8 is a partially cutaway side view of the thermal spraying device shown in FIG. The same members as those in the posture maintaining device shown in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, the spray gun 17 is connected to the housing 2.
And a traveling means 1 such as a wheel or a roller for traveling the sprayed surface 18 under the housing 2.
9 is provided.

With the above structure, the spray gun 17 can be maintained at a constant distance from the surface 18 to be sprayed, so that the surface 18 to be sprayed can be uniformly sprayed.

As means for moving the attitude maintaining device,
In addition to the means described in the above embodiment, a transport machine such as a mobile crane can be used.

Further, the posture maintaining device of the present invention is not limited to the tank cleaning device and the thermal spraying device described in the above embodiment, but performs surface treatment such as cleaning, painting, blasting, welding and heat treatment of window glass and building walls. Applicable to devices.

[0034]

According to the present invention, it is possible to maintain a constant attitude of the attitude maintaining device with respect to a curved surface, an inclined surface, and a vertical surface by ejecting a gas perpendicularly to a surface to be processed. Even if a device equipped with a rotating body such as a rotating brush is attached to the posture maintaining device, gas is ejected in the tangential direction of the rotating body, and rotation is prevented by utilizing the reaction force generated at that time. Without pressing, the surface treatment apparatus such as cleaning and painting can be pressed while maintaining a constant posture.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a tank cleaning device provided with a posture maintaining device of the present invention.

FIG. 2 is a partially cutaway side view of the cleaning device shown in FIG.

FIG. 3 is a plan view showing a state in which a cleaning device provided with the posture maintaining device of the present invention is set on a tank surface.

FIG. 4 is a side view showing a state where the cleaning device shown in FIG. 3 is set on a tank surface.

FIG. 5 is a plan view showing another state in which the cleaning device provided with the posture maintaining device of the present invention is set on a tank surface.

6 is a side view showing a state where the cleaning device shown in FIG. 5 is set on a tank surface.

FIG. 7 is a plan view showing an example of a thermal spraying device provided with the attitude maintaining device of the present invention.

8 is a partially cutaway side view of the thermal spraying apparatus shown in FIG.

[Explanation of symbols]

 1: Attitude maintaining device 2: Housing 3: Gas outlet 4: Rotation preventing gas outlet 5: Rotating brush 6: Air motor 7: Muffler 8: Cylindrical tank 9: Traveling trolley 10: Stand 11: Rail 12a, 12b : Hoist 13a, 13b: Wire 14: Hose 15a, 15b: Traveling carriage 16a, 16b: Winch 17: Thermal spray gun 18: Thermal sprayed surface 19: Traveling means

Claims (3)

[Claims] 1. A posture maintaining device comprising a surface treatment device having a rotating body for surface treatment having a rotation axis along a line substantially perpendicular to a surface to be treated, wherein the housing of the posture maintaining device has On the side opposite to the surface treatment surface, a plurality of gas ejection ports for ejecting gas along the perpendicular line are provided, and gas is ejected along the tangential direction of the rotating body so as to generate one or more couples. An attitude maintaining device for a surface treatment device, wherein a rotation-preventing gas ejection port is provided. 2. A posture maintaining device for maintaining a surface treatment device for performing a surface treatment on a curved surface or an inclined surface in a constant posture,
A posture maintaining device for a surface treatment device, wherein a plurality of gas ejection ports for ejecting gas along the perpendicular line are provided on a side of a housing of the posture maintenance device opposite to a surface to be treated. 3. A running means for running on a surface to be treated is provided on the housing.
A posture maintaining device for a surface treatment device as described in the above.