JPH0437747B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology belongs to the technical field of the structure of an apparatus for painting the side surface of a high-rise building such as an oil storage tank of a steel structure.

<Summary of the gist> The invention of this application is for painting the outer surface of a high-rise building made of iron or the like, such as a flat-bottomed cylindrical oil storage tank, for regular or irregular maintenance. The device is a lower part of a turret-type guide post mounted on the side of a horizontally movable trolley mounted on a wind girder at the top of the high-rise building so as to be substantially close to the lower foundation. This invention relates to a coating device for a high-rise building, in which a support roller for the outer surface of the high-rise building is provided, and a gondola having a coating device body such as a robot is provided so as to be able to move up and down along the guide post, In particular, a movable support such as a roller that is integrally provided at the bottom of the guide post and supports the foundation of a high-rise building is provided, and a damper type that applies an upward reaction force to the movable support against the guide post is provided. This invention relates to a coating device for a high-rise building that is equipped with a supporting force imparting device.

<Prior Art> As is well known, some structures include high-rise buildings such as oil storage tanks, silos, and steel towers that are constructed from metal members such as steel due to their design, cost, function, etc. Although some have a monotonous shape,
There are high-rise buildings that have a predetermined number of wind girders or ribs integrally installed externally in a ring shape in order to provide anti-wind functions.

Naturally, in order to maintain the durability of these high-rise buildings, not only during construction, but also during operation, regular and irregular maintenance is required, especially on the external surfaces. Painting is applied to prevent rust.

Since most of the painting of these types of high-rise buildings involves work in high places, scaffolding or cranes are generally used for the work from the viewpoint of safety, efficiency improvement, and finish accuracy.

<Problem to be solved by the invention> However, for example, when it comes to petroleum storage tanks, service tanks and stockpiling tanks are becoming larger due to recent increases in energy demand and demand for chemical industries. , the height of the side plate is 30
There are some large-scale wind girders with a diameter of around 100 m or around 100 m, and of course many large-sized wind girders are being installed, which causes the following problems. .

That is, as mentioned above, when working on a high-rise building, if scaffolding is to be erected, the time required for preliminary work is long, and the safety of the preliminary work itself is not necessarily high, which is disadvantageous, and the working environment is not sufficient. As a result, finishing accuracy was not always satisfactory, which was a disadvantage.

Further, when work is carried out by suspending a gondola using a crane or the like, there is also the disadvantage that the management and control of the gondola becomes complicated, resulting in high costs.

Therefore, automation technology has been introduced into the painting work for such large high-rise buildings, and there has been a strong desire to develop a technology that allows painting work to be performed safely and with high precision in a good working environment.

In response to this, an automatic coating device 1 as shown in FIG. 6 and subsequent figures has been developed, for example, as in the invention of Japanese Patent Application No. 61-243255, which is an earlier invention of the applicant.

That is, a turret-type truck 5 is constructed on a foundation 2 and is set on a wind girder 3' at the top of a large oil storage tank 4, which is a high-rise structure and has wind girders 3, 3, . . . A guide post 6 is mounted in a hanging manner, and a support roller 7 is provided inward at the lower end of the guide post 6 in order to prevent it from swinging laterally relative to the storage tank 4. Gondolas 10, 10' that move up and down along the guide post 6 are provided, and, for example, the tank side surface 4' of a robot type or the like is provided.
Equipped with a coating device main body 11 for the wind girder 3, 3', a coating device main body 11' for the wind guard 3, 3',
For the wind girders 3 and 3', the 7th and 8th
As shown in the figure, a technology for automatically painting the top and back surfaces of these objects is coming into practical use.

As mentioned above, these oil storage tanks 4, which are high-rise buildings, have recently become larger due to the demand for stockpiling livestock, etc.
The wind girder 3, especially the wind girder 3' at the top, has also become larger in size, with its width reaching well over 1 m.

Naturally, in order to paint the outer surface of the side plate 4' and the wind girder 3, 3' of the oil storage tank 4, which is becoming larger, the coating equipment 1 must also be enlarged, and it will become heavier and heavier. Most of the weight of the large and heavy coating device 1 is supported by the wind girder 3' at the top, and the side couple at the bottom is supported by the side plates 4', so the above-mentioned As shown in the figure, the large amount of protrusion of the wind girders 3, 3' results in insufficient strength, and the strength of the tank side wall 4' also becomes insufficient, resulting in inconveniences.

Furthermore, the wind girder 3' at the top of the oil storage tank 4 in the actual structure is not necessarily formed into a perfect circle, but is formed into a polygon due to reasons such as design and on-site construction. Most of the sides are straight, and their connections are bending points. Therefore, it is difficult to move the large and heavy coating device 1 around the side surface 4' of the oil storage tank 4. The problem started to arise that it was difficult to run smoothly.

<Purpose of the Invention> The purpose of the invention of this application is to solve the problems of large and heavy painting equipment that paints the sides of high-rise buildings such as oil storage tanks, which are becoming larger based on the above-mentioned prior art. As such high-rise buildings become larger and heavier due to the installation of various automatic devices, we aim to reduce the load on the wind girders and side panels of high-rise buildings, and Maintenance in the construction industry by reducing the load on substantial high-rise buildings without requiring increased strength of their structural components, promoting the benefits of automation, and ensuring safe and smooth painting operations around high-rise buildings. It is an object of the present invention to provide an excellent coating device for high-rise buildings that will benefit the technical application field.

<Means/effects for solving the problem> In order to solve the above-mentioned problem, the structure of the invention of this application, which is summarized in the above-mentioned claims, is to solve the above-mentioned problem. When painting the outer surface or the surface of the wind girder, a horizontally movable trolley is set on the wind girder at the top of the wind girder, and support rollers, etc. A device is installed to take an upward reaction force to the foundation and reduce the gravity of the coating device without applying an excessive load to the wind girder at the top.Furthermore, a damper-type supporting force imparting device is installed on the movable support. The load applied to the wind girder is minimized by controlling the upward reaction force to be slightly smaller than the weight of the coating equipment depending on the conditions, and the horizontally moving cart and movable support are synchronously moved. The gondola moves in synchrony and stably around the high-rise building, while moving up and down in a predetermined manner along the guide post. The predetermined painting work on the surface of the girder can be carried out freely and automatically and efficiently, and the movable support absorbs the unevenness of the foundation and smoothly moves the painting equipment around the high-rise building. In this process, the large size and heavy weight of the coating equipment should be avoided by applying unreasonable loads to the wind girders and side panels of the high-rise building equipment, so that the functions of the high-rise building will not be affected in any way. This was achieved by taking technical measures to achieve this goal.

<Example> Next, one example of the invention of this application will be described in 1st to 5th examples.
The explanation will be as follows based on the figures. still,
Components having the same features as those in FIGS. 6 to 8 will be described using the same reference numerals.

The illustrated embodiment relates to painting a large oil storage tank as a high-rise building, and in the embodiment shown in FIGS. Painting is carried out on the outer surface of the side plate 4' of a high-rise structure 4 of an oil storage tank which is constructed in the upper half and has wind girders 3, 3..., 3' in the upper half. A turret-type guide post 6 is suspended from a self-propelled horizontally moving trolley 5 set in the same manner, with its lower end close to the foundation 2, and a movable support 12 is integrally provided, and its support roller 15 rollably contacts the foundation 2 to take an upward reaction force, so that the entire gravity of the coating device 1' is applied only to the lateral moving cart 5. Therefore, a light load obtained by subtracting the upward reaction force from the weight of the coating device 1' is applied to the wind girder 3'.
It is designed to be able to support it with sufficient strength.

A support roller 7 is provided at the lower end of the guide post 6 in a horizontal position to prevent the application of an impactive load to the oil storage tank 4 from the side, so as to maintain a constant hanging state at all times. The gondolas 9 and 9', which are installed on the guide post 6 so as to be able to rise and fall freely, are moved up and down and stopped at predetermined positions via wires 8' by a winch 17 that is rotated by an air motor 8 installed at the bottom of the gondolas. is,
The coating device main body 11 for the outer surface of the side surface 4' is connected to the gondola 9, and the wind girders 3, 3, . . .
A robot-type coating device main body 11' for 3' is mounted on the gondola 9'.

It is also possible to allow the gondolas 9, 9' to move laterally relative to the guide post 6 by a predetermined stroke.

Reference numeral 12 denotes a movable support at the bottom of the guide post 6, and as shown in FIGS.
A damper spring 13 is provided therein as a damper-type supporting force imparting device whose elastic force can be adjusted freely, and the upward reaction force of the support roller 15 provided below can be adjusted freely. The lower support roller 15, which is slightly movable up and down with respect to the guide post 6, is given rotational torque by an air motor 16 provided on the bracket 14, and is synchronously moved in synchronization with the upper transversely movable cart 5. Therefore, the coating device 1' can rotate while always maintaining the same attitude with respect to the side plate 4'.

In addition, since the wind girders 3 and 3' have their upper and lower surfaces, the robot-type coating device main body 11' installed on the upper gondola 9' is attached to the side surface 4' as shown in FIGS. 2 and 3. The wind girders 3, 3' are arranged in a parallel and perpendicular position so that the upper and lower surfaces of the wind girders 3, 3' can be painted.

It should be noted that the coating device 1' is disassembled and stored as appropriate when no coating work is to be performed.

In the above configuration, when painting the outer surface 4' of the oil storage tank 4 for regular or irregular maintenance during construction or operation, the painting device 1' is assembled in a predetermined manner, and the 1,
As shown in Fig. 2, a horizontally movable trolley 5 is installed on the outside of the side surface 4' of the oil storage tank 4, and a horizontally movable trolley 5 is installed on the wind girder 3' at the top, and a movable support 12 is installed on the foundation 2. Therefore, as described above, the entire weight of the coating device 1' is not supported entirely by the lateral moving cart 5 and the movable support 12, but by the movable support 12. body 1
A load obtained by subtracting the upward reaction force caused by 2 from the total weight is applied to the lateral moving truck 5, that is, the wind girder 3' at the top, and therefore, the wind girder 3' supports the entire weight of the coating device 1'. It is not built to be as sturdy as it should be.

Therefore, the spring force of the damper spring 13 of the support force imparting device of the movable support body 12 is adjusted in advance so that a load that can be supported by the wind girder 3' is applied to the lateral movable cart 5 at the time of setting. put.

Then, start the air motor 8 and move the gondola 9.
9' is lifted and stopped at a predetermined position, and the outer surface of the lower half side surface 4' is painted by the coating device body 11 through the lateral movement of the lateral moving trolley 5, and the wind girders 3, 3..., 3', And, on the outer surface of the side surface 4' between them, a robot-type coating device main body 11' performs coating while its posture is appropriately controlled and maintained, and is movably supported by a control device (not shown). The air motor 16 of the body 12 and the air motor of the lateral moving truck 5 are operated so that the coating device 1' always maintains the same posture around the oil storage tank 4.
By traveling around, the coating device main body 11,1
1' can move vertically and horizontally in a zigzag pattern to thoroughly paint the entire side surface 4'.

Even if there are irregularities in the circumferential direction of the foundation 2 when the coating device 1' travels around, the damper spring 13 absorbs the rise and fall, and the horizontally movable trolley 5
This prevents an increase in the load applied to the wind girder 3'.

In addition, since the foundation 2 is generally a ground surface, unexpected upward reaction force is generated at the convex part due to unevenness, and as a result, the wheels of the lateral moving trolley 5 mounted on the wind girder 3' Although there is a risk that the coating device 1' may float up and collapse as a result, such a trouble is prevented by the damping function of the damper spring 13.

During this time, even if some wind blows, the coating device 1' will not move away from the side plate 4' due to the support roller 7, or
No impact load is applied to the side plate 4' by applying a pressing force or the like.

Therefore, as a result, the strength of the side plate 4' of the oil storage tank 4 is not particularly increased, and the strength against the hydraulic pressure of the stored oil and seismic force is sufficient.

In this way, the outer surface 4' of the petroleum storage tank 4 is thoroughly coated as designed, and when finished, the coating device 1' is appropriately folded and stored to prepare for the next coating.

It goes without saying that the embodiments of the invention of this application are not limited to the above-mentioned embodiments; for example, for a movable support, crawlers may be used instead of the support rollers, or a plurality of guide posts may be provided on the guide post itself. It is possible to provide a joint to make it expandable and retractable, or to provide a hydraulic damper or the like as a supporting force imparting device to the movable support to make the upward reaction force adjustable.

Note that the applicable high-rise buildings are not only oil storage tanks, but also silos, steel towers, etc.

<Effects of the Invention> As described above, according to the invention of this application, when painting the outer surface of a high-rise building such as a large oil storage tank during construction or movement, a robot-type painting device, a gondola, or Even if the weight of a painting device that has a guide post equipped with an air motor or the like becomes large, the entire load is not applied to the wind girder through the lateral moving cart set on the wind girder at the top, and the lower end of the guide post is By providing a movable support that is supported against the foundation, a slight load, which is the total weight minus the upward reaction force, is applied to the wind girder at the top.
The wind girder's inherent overhang and strength to counter the wind force are sufficient, and the coating equipment itself does not have any connection even if it is large and heavy, and the side plate has a movable support at the lower end of the guide post. Because of this, there is no need to receive excessive support reaction force, and there is also no need to increase the strength, which has the excellent effect of being able to use the original structure of a high-rise building such as a tank.

Therefore, even if the coating equipment is large and heavy, there is no need for any restrictions that restrict automation, and the automation can be designed freely, with high safety and work efficiency. The excellent effect of improving the performance is achieved.

By making the movable support self-propelled, it can run around in synchronization with the horizontally movable cart set on the wind girder, making it possible for the coating equipment to remain in the same position all the time. In this respect, the paint can be painted as designed, the accuracy of the paint finish is good, and the reliability is also improved.

By equipping the movable support with a damper-type support force applying device, it is possible to adjust the upward reaction force depending on the conditions, and it is also possible to absorb uneven surfaces in the circumferential direction of the foundation when traveling in circles. This has the excellent effect of suppressing the occurrence of unexpected situations such as the collapse of the coating equipment due to the lifting of the upper carriage.

[Brief explanation of drawings]

1 to 5 are explanatory diagrams of one embodiment of the invention of this application, in which FIG. 1 is an overall schematic side view, FIG. 2 is a partially sectional front view of the same, and FIG. 3 is a second view of the main body of the coating device. FIG. 4 is an enlarged front view of section A in FIG. 2, FIG. 5 is an enlarged side view of section B in FIG. , FIG. 6 is a partially enlarged side view, FIG. 7 is a sectional front view of the same, and FIG. 8 is a partial front view of FIG. 7. 1...High-rise building, 3...Wind guard,
5... Lateral moving trolley, 6... Guide post, 10...
...Side surface, 7... Support roller, 11... Painting device main body, 9... Gondola, 1'... Painting device, 2...
Foundation, 12...Movable support body, 13...Damper type supporting force imparting device.

Claims (1)

[Scope of Claims] 1. A guide post mounted on a horizontally movable trolley mounted on a wind garter of a high-rise building is provided with support rollers for the side surface of the high-rise building, and a coating device main body is movable up and down on the guide post. In the coating equipment for a high-rise building, which is equipped with a gondola having a gondola, a movable support for the foundation of the high-rise building is attached to the lower part of the guide post, and the movable support has a damper-type support for the guide post. A painting device for high-rise buildings, characterized by being equipped with a force applying device. 2. The coating apparatus for high-rise buildings according to claim 1, wherein the damper-type supporting force imparting device is a constant supporting force maintaining device.