JPH0819947A - Finishing device for steel structure - Google Patents

Abstract

PURPOSE:To save a labor in finishing work of a steel structure by providing a device pressing a grinding device so that each traveling wheel is brought close/far to/from the steel structure. CONSTITUTION:As traveling wheels 9, 9, 10 are attracted to a steel structure 2, a traveling frame 3 is mounted in a such a position as sets a grinding wheel 18 of a grinding device 19 opposed to an objective part of finishing. Subsequently, an action instruction is outputted to the grinding device 19 from a controller 21, and then, the grinding wheel 18 in the grinder 19 is rotated, a fluid cylinder 17 is extended, a limit switch 20 is brought into contact with a dog 20a, and consequently, a rod is stopped at the predetermined length. Then, an action instruction is outputted to a traverse driving device 16 and travel driving devices 8, 8, and the travel driving devices 8, 8 are operated at the fixed speed until the given feed quantity is satisfied. The steel structure 2 is smoothly finished by means of the grinding wheel 18 arranged at the tip of the grinding device 19. After finishing work is completed, the traveling wheels 9, 9, 10 attracted to the steel structure 2 are separated from the steel structure 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finishing device for steel structures.

[0002]

2. Description of the Related Art When transporting a steel structure such as a shield machine, a predetermined position of a steel structure 2 to which a lifting aid such as an eye plate 1 as shown in FIG. 11 should be transported. Is fixed to the eye plate 1 by welding, a hook block of a crane or the like is engaged with the eye plate 1 via a wire rope or the like, and then the steel structure 2 is lifted, and the steel structure 2 is transported by a trailer truck or the like. When the steel structure 2 is to be unloaded from a transportation means such as a trailer truck, the eye plate 1 is engaged with a hook block such as a crane via a wire rope or the like as described above. The steel structure 2 is hung down.

The eye plate 1 may be left attached to the steel structure 2 depending on the purpose of use of the steel structure 2, but in the case of a shield machine, the eye plate 1 is attached. It is necessary to remove this because it will hinder the excavation work if left as it is.

Conventionally, when removing the eye plate 1 attached to the steel structure 2, the vicinity of the portion of the eye plate 1 welded to the steel structure 2 (two points in FIG. 11). The eye plate 1 is removed from the steel structure 2 by fusing (the part indicated by the chain line) with a gas cutting torch, and the fillet weld and the fillet weld remaining on the steel structure 2 side are removed. The remaining portion of the accompanying eye plate 1 is scraped off by a grinding machine such as a hand grinder.

[0005]

The above-described work of removing the eye plate 1 attached to the steel structure 2 is performed by hand, but the fillet remaining on the steel structure 2 side. Since the finishing work for scraping off the welded portion or the like must be performed while the worker holds the heavy hand grinder, there is a problem that a severe burden is imposed on the worker and work efficiency is not improved.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a finishing apparatus for a steel structure capable of saving labor in finishing work on the steel structure.

[0007]

In order to achieve the above object, in a steel structure finishing apparatus of the present invention, a traveling frame having a plurality of traveling wheels made of magnets, and a traveling drive for driving the traveling wheels. A device and a traverse attached to the traveling frame so as to be able to move along the steel structure and in a direction intersecting the rolling direction of the traveling wheel when each traveling wheel is adsorbed to the steel structure. A frame, a traverse drive device capable of moving the traverse frame in a direction intersecting with the rolling direction of the traveling wheels, and a approach / separation from the steel structure when each traveling wheel is adsorbed to the steel structure. In order to be able to do so, it comprises a grinding device supported by the transverse frame and a pressing device for pressing the grinding device toward the steel structure.

In addition to the above-mentioned structure, a control device for operating the traveling drive device, the traverse drive device, the grinding machine and the pressing device based on a program inputted in advance is provided.

On the other hand, in place of the above-mentioned grinding machine, a traveling frame having a plurality of traveling wheels made of magnets, a traveling drive device for driving the traveling wheels, and each traveling wheel adsorbed to a steel structure. At this time, a transverse frame attached to the traveling frame so as to be able to move along the steel structure and in a direction intersecting the rolling direction of the traveling wheel, and the transverse frame intersects the rolling direction of the traveling wheel. And a gas cutting device supported by the traverse frame so that a predetermined space is created between the traveling wheels when adsorbing each traveling wheel to the steel structure. It is configured to include a torch.

In addition to the above-mentioned structure, a control device for activating the traveling drive device and the gas cutting torch based on a program input in advance is provided.

Further, in each of the above-mentioned constitutions, a jack-up cylinder is provided in the traveling frame so as to face the steel structure when each traveling wheel is adsorbed to the steel structure. .

[0012]

[Operation] In the finishing device for steel structure having the grinding machine,
Place the traveling frame in a position where the grinding equipment faces the part to be finished of the steel structure by adsorbing the traveling wheels to the steel structure, and operate the grinding equipment pressing device to operate the grinding equipment. The structure is pressed against the finishing target part, and the traveling drive device is operated to drive the traveling wheels to move the traveling frame in the longitudinal direction of the finishing target part, and at the same time, the traverse driving device is activated. By reciprocating the traverse frame in the direction intersecting the rolling direction of the traveling wheels, the portion to be finished of the steel structure is finished smoothly.

In the case of adding a control device, the traveling frame is arranged at a position where the grinding machine confronts the portion to be finished of the steel structure by adsorbing the traveling wheels to the steel structure, When the grinding device, the pressing device, the traveling drive device, and the traverse drive device are operated by the control device, the control device moves the grinding device based on the program previously input, and smoothes the portion to be finished of the steel structure. To finish.

On the other hand, when a gas cutting torch is provided instead of the grinding machine, the traveling wheel is adsorbed to the steel structure so that the gas cutting torch faces the portion to be finished of the steel structure. Place the traveling frame in such a position, operate the gas cutting torch, then operate the traveling drive device to drive the traveling wheels to move the traveling frame in the longitudinal direction of the portion to be finished, and Finish the target part of the structure to be almost flat.

When the control device is added, the traveling frame is arranged at a position where the gas cutting torch faces the portion to be finished of the steel structure by adsorbing the traveling wheels to the steel structure. When the control device starts the gas cutting torch, the traveling drive device, and the traverse drive device, the control device moves the gas cutting torch based on a program that is input in advance, and the portion to be finished of the steel structure is substantially flattened. To finish.

Further, in the case where the jack-up cylinder is provided, when the jack-up cylinder is operated in the extension direction after the work is completed, the traveling wheels adsorbed on the steel structure are easily separated.

[0017]

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

FIG. 1 is a plan view showing the outline of an embodiment of the steel structure finishing apparatus of the present invention, FIG. 2 is a view taken along the line II-II of FIG. 1, and FIG. 3 is a line III-III of FIG. Perspective view, FIG. 4 is FIG.
FIG. 4 is an IV-IV arrow view of FIG.

Reference numeral 3 denotes a traveling frame. The traveling frame 3 has a frame main body 4 having a predetermined length, and arms 5, 5 extending to one side in parallel with both longitudinal ends of the frame main body 4. And the tip of the arm 5, which protrudes downward at the center of the frame body 4 in the longitudinal direction, and whose tip is
5 and a lower arm 6 extending in the same direction.

The pedestals 7 and 7 extending in the direction orthogonal to the arms 5 are provided inside the traveling frames 3 at the respective tips of the arms 5 and 5, and the frame main body 4 is provided at the upper ends of the pedestals 7 and 7. The traveling drive devices 8 and 8 each having a rotating shaft extending in a direction parallel to the outer direction of the traveling frame 3 are fixed, and traveling wheels 9 and 9 formed by permanent magnets are formed on the rotating shafts of the traveling drive devices 8 and 8. The traveling wheels 9 and 9 are respectively fitted and formed so that they can be driven by the traveling drive devices 8 and 8, and the tip end of the lower arm 6 is adsorbed on the same plane as the traveling wheels 9 and 9. A traveling wheel 10 formed of a permanent magnet is rotatably arranged so that it can rotate in the same direction.

Each traveling wheel 9, 9, 10 is connected to the steel structure 2
(For example, the body of a shield machine)
A jack-up cylinder 11 in which the tip of the rod faces the steel structure 2 so as to face the steel structure 2, is provided on the traveling frame 3 near each of the traveling wheels 9, 9, 10 and The jack-up cylinder 11 is operated in the direction in which the rod extends, and the tip of the rod is moved to the steel structure 2
The traveling wheels 9, 9, 10 adsorbed to the steel structure 2 are formed so as to be separated from the steel structure 2 by being pressed against the steel structure 2.

A guide member 12 (for example, a linear guide or the like) extending in the longitudinal direction is provided on the upper surface of the frame body 4.
And a transverse frame 13 that can move along the guide member 12, and pulleys 14 and 14 are arranged near both ends of the guide member 12 at a predetermined interval in the longitudinal direction of the frame body 4. The endless belt 15 locally connected to the transverse frame 13 is attached to the pulleys 14, 1
4, a traverse driving device 16 that can drive one of the pulleys 14 and 14 is wound around the four, and the traverse frame 13 is moved by the traverse driving device 16 via the endless belt 15 to the traveling wheels 9, It is formed so that it can be moved in a direction intersecting with the rolling directions of 9 and 10.

When the traveling wheels 9, 9, 10 are adsorbed to the steel structure 2, they are slidably supported by the transverse frame 13 so that they can approach and separate from the steel structure 2. In addition, a grinding machine 19 driven by the fluid pressure cylinder 17 and having a grindstone 18 of a surface grinding type at its tip is provided.

The fluid pressure cylinder 17 is formed so that the extension range of the rod can be limited by the position where the dog 20a (see FIG. 4) for the limit switch 20 provided near the fluid pressure cylinder 17 is set. ing.

At the lower part of the traveling frame 3, there is provided a control device 21 for operating the traveling drive devices 8, 8, the traverse driving device 16, the fluid pressure cylinder 17, and the grinding machine 19 based on a program inputted in advance. It is provided, and the operation surface is attached so as to face the anti-grinding device 19 side.

The function of the control device 21 will be described with reference to FIG. 5. When the feed amount in the transverse direction and the feed amount in the traveling direction are given, an operation command is output to the grinding machine 19,
An operation command in the direction in which the rod extends is output to the fluid pressure cylinder 17. When the grindstone 18 of the grinding machine 19 rotates, the rod of the fluid pressure cylinder 17 extends to a predetermined length and the limit switch 20 provided on the fluid pressure cylinder 17 stops working, the traverse drive device 16 and the traveling drive devices 8, 8 are driven.
The operation command is output to and.

The traverse drive device 16 that has received the operation command repeats reversal every time when a predetermined feed amount is reached, and the traveling drive devices 8 and 8 operate at a constant speed until the predetermined feed amount is reached. The grindstone 18 provided at the tip of the device 19 is formed so as to move in a zigzag manner.

Reference numeral 22 is a handle for supporting the above-mentioned finishing device when it is carried by human power.

Further, the attraction force of the traveling wheels 9, 9 and 10 made of the permanent magnet described above is determined by the traveling wheels 9, 9 and 10.
When 10 is adsorbed on a substantially vertical steel plate, the entire weight of the finishing device for the steel structure 2 can be supported.

Next, the operation will be described.

When removing the eye plate 1 attached to the steel structure 2, as shown in FIG. 11, gas near the portion of the eye plate 1 welded to the steel structure 2 by fillet welding is used. After the eye plate 1 is removed from the steel structure 2 by fusing with a cutting torch, the traveling wheels 9, 9, 10 are adsorbed to the steel structure 2 to finish the target part (steel structure 2). At the position where the grindstone 18 of the grinding machine 19 faces one end in the longitudinal direction of the fillet weld remaining on the object 2 side and the remaining portion of the eye plate 1 accompanying the fillet weld) The traveling frame 3 is attached by setting the traveling direction of the apparatus in a direction parallel to the longitudinal direction of the portion to be finished.

After that, when the feed amount in the transverse direction and the feed amount in the traveling direction are given to the control device 21, the control device 21
Outputs an operation command to the grinding machine 19, and outputs an operation command to the fluid pressure cylinder 17 in the direction in which the rod extends.

When the grindstone 18 of the grinding machine 19 which receives this operation command rotates, the fluid pressure cylinder 17 expands, the limit switch 20 hits the dog 20a, and the rod stops for a predetermined length. Device 8, 8
An operation command is output to and the traverse drive device 16 that has received the operation command repeats reversal every time a predetermined feed amount is reached, and the traveling drive devices 8 and 8 until the given feed amount is reached. Operates at a constant speed.

A grindstone 18 provided at the tip of the grinding machine 19
Moves zigzag in the longitudinal direction along the portion to be finished, and as a result, the grindstone 18 scrapes off the fillet weld of the steel structure 2 and the remaining portion of the eye plate 1 to finish the surface smoothly.

After the finishing work is completed, the jack-up cylinder 11 provided on the traveling frame 3 is manually operated.
Is operated in the direction in which the rod extends and the traveling wheels 9, 9, 10 adsorbed to the steel structure 2 are separated from the steel structure 2.

According to the above, the traveling frame 3 having the traveling wheels 9, 9 and 10 which can be adsorbed to the steel structure 2, and the traverse frame 13 which can move in a direction intersecting the traveling direction of the traveling frame 3. Grinding provided on the traverse frame 13 via the fluid pressure cylinder 17 so that when the traveling wheels 9, 9, 10 are adsorbed to the steel structure 2, the traveling wheels 9 can approach and separate from the steel structure 2. Since the device 19 and the control device 21 that can control each device based on the program input in advance are provided, labor of finishing work can be saved, and the burden on the worker can be reduced and work efficiency can be reduced. improves.

FIG. 6 is a plan view showing the outline of another embodiment of the finishing apparatus for steel structure of the present invention, and FIG. 7 is a VII-V of FIG.
II arrow view, FIG. 8 is a VIII-VIII arrow view of FIG.
FIG. 9 is a view on arrow IX-IX in FIG. 7. In the figure, the same parts as those in FIGS.

In this embodiment, instead of the fluid pressure cylinder 17 and the grinding machine 19 of one embodiment of the present invention shown in FIG. 1, when each traveling wheel 9, 9, 10 is adsorbed to the steel structure 2. A gas cutting torch 24 having a torch head 23 facing the steel structure 2 at a predetermined angle and distance.
Are fixed on the transverse frame 13.

Further, the control device 25 arranged at the lower part of the traveling frame 3 can operate the traveling drive devices 8 and 8 and the gas cutting torch 24 based on a program inputted in advance. As shown, when the feed amount in the traveling direction is given, an operation command is output to the gas cutting torch 24, and the preheating flame is radiated from the tip of the torch head 23 of the gas cutting torch 24 that has received the operation command, and the predetermined timing After that, when cutting oxygen is ejected from the torch head 23, an operation command can be output to the traveling drive devices 8, 8.

Others are the same as those of the embodiment of the present invention shown in FIGS.

Next, the operation will be described.

When removing the eye plate 1 attached to the steel structure 2, the eye plate 1 is removed from the steel structure 2 in the same manner as in the above-described embodiment, and then the running wheels 9, 9 are used. , 10 by being adsorbed to the steel structure 2 in the longitudinal direction of the portion to be finished (the fillet weld remaining on the steel structure 2 side and the remaining portion of the eye plate 1 accompanying the fillet weld) The traveling frame 3 is attached in such a position that the tip of the torch head 23 of the gas cutting torch 24 faces one end of the one, the traveling direction of the apparatus is determined in the direction parallel to the longitudinal direction of the portion to be finished. .

After that, when a feed amount in the traveling direction is given to the control device 25, an operation command is output from the control device 25 to the gas cutting torch 24, and the torch of the gas cutting torch 24 that has received the operation command is sent. When the preheating flame is emitted from the tip of the head 23 and the cutting oxygen is ejected from the torch head 23 after a predetermined timing, the traveling drive device 8,
An operation command is output to 8, and the traveling drive devices 8 and 8 that have received the operation command operate at a constant speed until reaching a given feed amount, and the torch head 23 moves along the portion to be finished. As a result of moving in the longitudinal direction, the fillet welded portion 2a of the steel structure 2 and the remaining portion 1 of the eye plate 1 are moved.
a is blown off by the high pressure oxygen ejected from the torch head 23 of the gas cutting torch 24, and the portion to be finished is finished to be substantially flat.

After the finishing work is completed, the jack-up cylinder 11 provided on the traveling frame 3 is manually operated.
Is operated in the direction in which the rod extends and the traveling wheels 9, 9, 10 adsorbed to the steel structure 2 are separated from the steel structure 2.

According to the above, the traveling frame 3 having the traveling wheels 9, 9 and 10 which can be adsorbed to the steel structure 2, and the traverse frame 13 which can move in the direction intersecting the traveling direction of the traveling frame 3. A gas cutting torch 24 having a torch head 23 facing the steel structure 2 at a predetermined angle and distance when the traveling wheels 9, 9, 10 are adsorbed to the steel structure 2; Since the control device 25 that can control each device based on the program input in advance is provided, the labor of finishing work can be saved, the burden on the worker can be reduced, and the work efficiency is improved.

The present invention is not limited to the above-mentioned embodiment. For example, in one embodiment shown in FIG.
The case where the grinding machine 19 having the surface grinding type grindstone 18 at the tip portion is provided has been described, but the surface grinding type grindstone 1 is described.
8 may be replaced by a circular outer surface type grindstone,
Of course, various changes can be made without departing from the scope of the present invention.

[0047]

According to the finishing apparatus for steel structure of the present invention, various excellent effects as described below can be obtained.

I) In any of the finishing devices for steel structures according to claims 1 to 4 of the present invention, labor of finishing work can be saved, and a burden on an operator can be reduced. Improves work efficiency.

II) In the finishing apparatus for steel structure according to the fifth aspect of the present invention, it becomes easy to separate the traveling wheels adsorbed to the steel structure.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing an embodiment of a steel structure finishing apparatus of the present invention.

FIG. 2 is a view taken along the line II-II of FIG.

FIG. 3 is a view taken along the line III-III in FIG.

4 is a view taken in the direction of arrows IV-IV in FIG. 2;

5 is a functional flow diagram of a control device related to FIG. 1. FIG.

FIG. 6 is a plan view showing the outline of another embodiment of the steel structure finishing apparatus of the present invention.

FIG. 7 is a view on arrow VII-VII in FIG.

FIG. 8 is a view on arrow VIII-VIII in FIG. 7.

9 is a view on arrow IX-IX in FIG. 7. FIG.

10 is a functional flow diagram of the control device related to FIG. 6;

FIG. 11 is a perspective view showing an example of a conventional eye plate.

[Explanation of symbols]

 2 Steel Structure 3 Travel Frame 8 Travel Drive Device 9 Travel Wheel 10 Travel Wheel 11 Jack-up Cylinder 13 Traverse Frame 16 Traverse Drive Device 17 Fluid Pressure Cylinder (Pressing Device) 19 Grinding Machine 21 Control Device 24 Gas Cutting Torch 25 Control Device

Front page continuation (72) Inventor Akinori Narimatsu 3-15-15 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Toni Technical Center

Claims (5)

[Claims] 1. A traveling frame having a plurality of traveling wheels made of magnets, a traveling drive device for driving the traveling wheels, and along the steel structure when the traveling wheels are adsorbed to the steel structure. A traverse frame attached to the traveling frame so as to be movable in a direction intersecting the rolling direction of the traveling wheel, and a traverse drive device capable of moving the traversing frame in a direction intersecting the rolling direction of the traveling wheel. , A grinding machine supported by the traverse frame so as to be able to approach and separate from the steel structure when each traveling wheel is adsorbed to the steel structure, and the grinding machine to the steel structure A finishing device for a steel structure, comprising: a pressing device that presses the steel structure toward. 2. The steel structure finishing device according to claim 1, further comprising a control device for operating the traveling drive device, the traverse drive device, the grinding device, and the pressing device based on a program input in advance. . 3. A traveling frame having a plurality of traveling wheels made of magnets, a traveling drive device for driving the traveling wheels, and along the steel structure when each traveling wheel is attracted to the steel structure. A traverse frame attached to the traveling frame so as to be movable in a direction intersecting the rolling direction of the traveling wheel, and a traverse drive device capable of moving the traversing frame in a direction intersecting the rolling direction of the traveling wheel. A gas cutting torch supported by the traverse frame so that a predetermined interval is generated with respect to the steel structure when each traveling wheel is adsorbed to the steel structure. Finishing equipment for steel structures. 4. The finishing apparatus for steel structure according to claim 3, further comprising a control device for operating the traveling drive device, the traverse drive device, and the gas cutting torch based on a program input in advance. 5. The jack-up cylinder is provided on the traveling frame so as to face the steel structure when each traveling wheel is adsorbed to the steel structure.
The finishing device for a steel structure according to claim 2, claim 3 or claim 4.