JPH0368742B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Detailed Description of the Invention] The present invention relates to an improvement in a coating device for coating steel structures such as high-rise chimneys.

Traditionally, steel structures such as high-rise chimneys were
On-site painting is carried out once in a while for maintenance purposes, but since all of this is dependent on human labor, maintenance costs are high. Also, since it was done manually, it was not possible to increase the painting speed very much. Also, working at heights poses great danger. Furthermore, the number of special workers who perform this type of work is decreasing, making it difficult to plan work.

The present invention addresses the above-mentioned problems, and includes a split-type annular traveling device that can be opened and closed around a pivot pin, an opening/closing drive device for opening and closing the annular traveling device, and an annular traveling device. a self-propelled trolley that travels above; a holding device that holds the annular traveling device movably up and down at intervals around the object to be painted; and a lifting drive device that raises and lowers the annular traveling device;
The present invention relates to a painting device characterized by comprising a painting work device installed on the above-mentioned self-propelled cart, and its purpose is to reduce maintenance costs for steel structures such as high-rise chimneys. Another object of the present invention is to provide an improved coating device that can carry out coating, polishing, and other operations as planned and without danger.

Next, the coating apparatus of the present invention will be explained with reference to an embodiment shown in FIGS. 1 to 7. In FIG. A split-type annular traveling device that can be opened and closed, 13 an air cylinder (opening/closing drive device) for opening and closing the annular traveling device 2, 16 a self-propelled trolley that runs on the annular traveling device 2, and 18 the annular traveling device 2; A holding device that holds the traveling device 2 (such as the barrel of a high-rise chimney) so that it can be raised and lowered at intervals, and 4 is a hanging rope winding device (not shown) for raising and lowering the annular traveling device 2. The annular traveling device 2 uses the hanging rope (elevating drive device) on the side to move the object 3 such as the cylinder of a high-rise chimney.
It is suspended around it via a plurality of hanging ropes 4 so that it can be raised and lowered. Further, the hanging rope 4 is wound up by a hanging rope winding device (not shown) disposed on the ground via a pulley (or something similar) 6 attached to the top 5 of the object 3 to be polished or painted. , or it's about to be rewound. Furthermore, three or more holding devices (swing and collision prevention devices) 1 are installed inside the annular traveling device 2.
8 (details will be described later) to prevent collision with the object 3. Furthermore, by operating the hanging rope winding device, the height of the annular traveling device 2 can be controlled, and instructions for this can be given by the operator to the winding rope through a control panel (not shown) installed on the ground. It is transmitted to the drive device of the pick-up device.
Further, 7 is a supply device for abrasive materials or coating materials necessary for polishing or (painting), and the supply device 7 is used for the object 3.
Stage 8, such as an inspection walkway, installed at a predetermined height.
installed on said cleaning or painting device 1, 1'
Abrasive materials, coating materials, electricity, air, etc. are supplied through a plurality of cables and hoses 9 including power lines of the annular traveling device 2. FIG. 2 is a plan view of the annular traveling device 2 held around the object 3, in which reference numerals 10 and 10' denote arcuate girders, 11 a pin joint that connects the arcuate girders 10 and 10' in an openable and closable manner; 12,12'
13 is a bracket provided on each arcuate girder 10, 10', and 13 is an air cylinder for opening and closing the arcuate girders 10, 10', one end of which is connected to the bracket 12 provided on the arcuate girder 10 through a pin. The other end is attached via a pin to a bracket 12' provided on the arcuate girder 10'. When the air cylinder 13 operates, the arcuate girders 10, 10' open and close around the pin joint 11. 14 is each arcuate girder 1
Guide member provided on the upper part of 0, 10', 15
The rack 16 laid in an arc shape on each arc girder 10, 10' is
17 is a motor for driving the self-propelled cart 16, which runs along the guide member 14 on the upper part of the self-propelled cart.
Reference numeral 18 also includes a lever 19 connected to the lower surface of the arcuate girder 10, 10' with a pin, a rocking and collision prevention roller 20 attached to the tip of the lever 19 via a pin, and one end connected to the lever 19 via a pin. three or more holding devices (swing and collision prevention devices) configured with a lever opening/closing cylinder 21 attached to the lower surface of the arcuate girder 10, 10' and the other end attached to the lever 19 via a pin; 22 is
A cylinder 24 is located on the inner and outer circumferential surfaces of the opening end of the arcuate girder 10 via a bracket 23, a guide rod 25 is provided at the tip of the rod of the cylinder 24, and a pawl is attached to the guide rod 25 via a pin. Cylinder 2 for opening/closing 26 and claw 26 supported by the same guide rod 25 via a bracket.
7, a plurality of arcuate girder fastening devices, 28 a fastening protrusion provided on the inner and outer circumferential surfaces of the arcuate girder 10' on the open end side, and 29 an outer circumferential surface of the arcuate girders 10, 10'. 30 is a hanging bolt, 3 is a cradle for cables and hoses installed in
1 is a mating surface of the arcuate girders 10, 10'.
Further, 32 in FIG. 3 is a plurality of instruction and guide rollers provided at the lower part of the self-propelled vehicle 16, and 33 is provided at the tip of the drive motor 17 of the self-propelled vehicle 16 on the side of the arc-shaped girder 10, 10'. The gear 34 meshes with the rack 15, and 34 is a cable bear for processing cables and hoses. On the self-propelled trolley 16, there is a coating device main body 35 and an arm 39 that can extend and retract the lifting platform 37 by a motor 36. And the same arm 39
A nozzle head 40 having a swing mechanism provided at the tip thereof, a coating nozzle 41 provided at the tip of the nozzle head 40, and a plurality of monitoring ITV cameras 42 provided on the coating body 35 are mounted. . In addition, 43 in Fig. 4 is a circular arc-shaped girder 1.
The support stands for the guide rod 25 provided at 0 and 10', and the above 16 and 35 to 42 correspond to the painted portion 1.

Next, the operation of the coating device will be explained. As shown in FIG. 1, one end of the suspension rope 4 is fastened to a suspension bolt 30 provided on the arcuate girders 10, 10' constituting the annular traveling device 2. The hanging rope 4 is extended to a hanging rope winding device on the ground via a pulley (or something similar) 6 provided on the top 5 of the target object 3, and by operating the hanging rope winding device, , arcuate girders 10, 10'
The entire annular traveling device 2 is lifted up to a predetermined height with the girders 10 and 1 opened.
The cylinder 13 of the opening/closing drive device for opening and closing 0' is operated to close the arcuate girder 10' which is in the open state, and the mating surfaces 3 at both ends of the arcuate girders 10, 10' are closed.
1 in close contact. At this time, the cylinder 24 supported by the bracket 23 provided on the inner and outer peripheral sides of the opening end side (opposite side of the pin joint 11) of the arcuate girder 10, the guide rod 25, and the pawl 26 pin-coupled to the guide rod 25 are connected. Claw 26 provided on guide rod 25 Opening/closing cylinder 27
The claws 26 of the plurality of arcuate girder fastening devices 22 are located at the dotted line position in FIG. 4 due to the action of the cylinders 24 and 27. The support base 43 provided on the arcuate girder 10 prevents the guide rod 25 provided at the tip of the cylinder 24 from deflecting due to its own weight, and serves to keep the claw 26 horizontal at all times. As shown above, arc girder 1
0 and 10' are closed by the cylinder 13 of the opening/closing drive device that opens and closes the arcuate girder 10,
When the opening side end surfaces of 10' approach or come into close contact, the cylinder 27 of the arcuate girder fastening device 22 is actuated to lower the pawl 26 and the cylinder 24
is activated to draw the pawl 26 toward the cylinder 24 via the guide rod 25, and the pawl 26 is connected to the fastening protrusion 2 provided on the side surface of the arc-shaped girder 10' on the opening side.
8 and pull the protrusion 28 in the above direction, and bring the mating surfaces 31 of the opening side end surfaces of each arcuate girder 10, 10' into close contact without any gaps, thereby integrating the arcuate girders 10, 10'. do. At this time,
The wedge-shaped uneven portions (see Fig. 5) provided on the opening side end surfaces of each arcuate girder 10, 10' are in close contact with each other.
Horizontal alignment is now performed. In the above state, as shown in FIG.
0, 10') are arranged at intervals. Next, as shown in FIGS. 2 and 3, a holding device (and collision prevention device) constituted by a lever 19, a rocking and collision prevention roller 20, and a cylinder 21 provided at the lower part of the arcuate girder 10, 10'.
The arc-shaped girder 1 suspended by the hanging rope 4 is activated by operating the cylinder 21 and pressing the shaking and collision prevention roller 20 against the object 3 with a constant force.
0, 10' from colliding with the object 3, and also prevents the axis of the object 3 and the arcuate girders 10, 10' from colliding with the object 3.
The axes of the guide member 14 provided in the guide member 14 are substantially aligned with each other. Once the above conditions are reached, the position of the painting nozzle 41 relative to the object 3 is adjusted using the ITV camera 42 of the painting section mounted on the self-propelled trolley 16 via the control panel on the ground, as shown in Fig. 3. do. At this time, the lifting table 37 is set at the upper limit stroke position. From now on, the ground operator will
It drives and operates the coating material supply device 7 to spray the coating material from the coating nozzle 41 onto the surface of the object 3 via the cable, hoses 9 and cable carrier 34, and also drives the drive motor 17 of the self-propelled cart 16. Then, the pinion 33 is rotated, and the self-propelled cart 16 is made to travel along the guide member 14 via the rack 15 provided on the arcuate girders 10, 10', and the outer peripheral surface of the object 3 is automatically painted. When the traveling truck 16 travels (360°+α°) along the arc-shaped guide member 14, the traveling and driving operations of the self-propelled truck 16 and the coating material supply device 7 are stopped, and the motor 36 of the coating section is driven to The lifting table 37 is lowered by a certain height. When the lifting platform 37 has descended by a certain height, the coating material supply device 7 is driven again, and the drive motor 17 of the self-propelled trolley 16 is driven, and the self-propelled trolley 16 is driven again.
The machine runs in reverse and performs automatic painting. That is, the ON/OFF state of the coating material supply device 7 and the lifting platform 3 of the coating device
The surface of the object 3 is automatically painted by repeating the intermittent lowering of 7 and the forward and reverse running of the self-propelled cart 16. When the lifting platform 37 of the coating section cannot be lowered by repeating the above operations, the hanging rope winding device placed on the ground is driven to lower the entire annular traveling device 2 by a predetermined stroke, and at the same time, the coating section The lifting platform 37 is raised to the upper limit position in preparation for the next coating. Further, when the annular traveling device 2 descends to a position where it interferes with the stage 8 provided on the object 3, the arc-shaped girder fastening device 22 and the arc-shaped girder opening/closing device 13 are driven to move the arc-shaped girders 10, 10' into the sixth position. It is opened as shown and removed from the object 3 using a hanging rope retractor located on the ground, and then the annular carriage 2 is set on the next painting site in the manner described above.

As described above, the present invention provides a split-type annular traveling device that can be opened and closed around a pivot pin, an opening/closing drive device for opening and closing the annular traveling device, and a self-propelled traveling device that runs on the annular traveling device. a dolly, a holding device for holding the annular traveling device so that it can be raised and lowered at intervals around the object to be painted, a lifting drive device for raising and lowering the annular traveling device, and a coating installed on the self-propelled dolly. Since the above-mentioned operation is carried out using a working device, there is no need for manpower for operations such as painting and cleaning, and maintenance costs for steel structures such as high-rise chimneys can be reduced. Moreover, the above-mentioned work can be performed automatically by remote control, and the above-mentioned work can be carried out as planned and without danger.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

[Brief explanation of drawings]

FIG. 1 is a side view schematically showing an embodiment of a coating device according to the present invention, FIG. 2 is an enlarged plan view thereof, and FIG.
The figure is a longitudinal cross-sectional side view along the arrow line in Figure 2, and Figure 4.
5 is a plan view showing the arc-shaped girder fastening device, FIG. 5 is a side view thereof, FIG. 6 is a plan view showing the annular traveling device in the open state, and FIG. 7 is a plan view showing the closed state. 1 or 1'...Painting work device, 2...Annular traveling device, 3...Object to be painted or polished, 4...
Lifting drive device, 11... Pivot pin, 13... Opening/closing drive device, 16... Self-propelled trolley, 18... Holding device.

Claims (1)

[Claims] 1. A split-type annular traveling device that can be opened and closed around a pivot pin, an opening/closing drive device for opening and closing the annular traveling device, a self-propelled cart that runs on the annular traveling device, and the aforementioned annular traveling device. A holding device for holding the device so that it can be raised and lowered at intervals around the object to be painted, a lifting drive device for raising and lowering the annular traveling device, and a painting work device installed on the self-propelled trolley. This coating equipment is characterized by the fact that