JPH0632298Y2 - Wall adsorption and cleaning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a wall surface adsorption and cleaning device used for grinding and cleaning a wall surface of a building.

[Conventional technology]

The conventionally proposed wall adsorption and cleaning device will be described with reference to FIG. 7 to FIG. 9. In the rear portion of the traveling frame 1 in the traveling direction, a cylindrical rear traveling wheel 9 rolling on a concrete wall surface 8 is rotatable. Is mounted on the vehicle, and a traveling drive device 10 including a motor with a speed reducer for driving rear traveling wheels 9 is fixed, and an electric motor with a speed reducer is provided at one end of the front portion of the traveling frame 1 in the left-right direction. The drive device 11 for traveling is pivotally mounted by a pivot 13 perpendicular to the wall surface 8, and a long hole 14 extending in the front-rear direction is provided in the other side portion in the left-right direction in the front portion of the traveling frame 1.

The shaft at one end of the cylindrical front traveling wheel 15 is rotatably attached to the frame 1 by the pivot 13 perpendicular to the shaft via the traveling drive device 11.
The bearing having the shaft at the other end of 5 is slidably installed in the elongated hole 14, and the front drive wheel 15 is rotated by the drive device 11 for travel via a gear transmission mechanism.

The traveling frame 1 and the bearing are connected to each other through an expansion / contraction device 17 having a ball screw threaded rod that is rotated by a driving device 16 for correcting the traveling direction including an electric motor with a speed reducer, and a circular shape that opens toward the wall surface 8. Cross-section sucker 2
Is rotatably supported by the traveling frame 1 via a bearing 18, and the suction cup 2 includes a metal suction cup body 19 supported by the bearing 18 and a suction cup lid 44 fixed to the traveling frame 1. The seal member 45 is provided between the suction cup body 19 and the suction cup lid 44, and the rubber hollow seal member 20 fixed to the front surface of the opening of the suction cup. The granular abrasive cleaning material projection type abrasive cleaner 3 is fixed to a suction cup lid 44.

A turning drive device 21 including an electric motor with a speed reducer is fixed to the traveling frame 1, and a drive sprocket 22 and a suction cup body 19 fixed to an output shaft of the turning drive device 21.
The drive chain 24 is wound around the annular driven sprocket 23 fixed to the
1, the suction cup body 19 is rotated with respect to the traveling frame 1.

A granular polishing / cleaning material projection type polishing / cleaning machine 3 for projecting a granular polishing / cleaning material such as steel balls is housed in the suction cup 2 and fixed to a suction cup lid 44, and the air suction port 4 in the polishing / cleaning machine 3 and the above The inside of the suction cup 2 includes a suction pipe 5 and a dust collector (not shown).
Via a vacuum suction source such as a vacuum pump.

Explaining the structure of the blasting machine 3, a casing 25 accommodates a projection impeller (impeller) 27 rotated by an impeller drive device 26 made of an electric motor, and a granular blasting material 28 made of steel balls. The lower discharge port of the hopper 29 accommodating is connected to the opening of the casing 25 at a position facing the center of the impeller 27,
The casing 25 is provided with a projection opening portion that opens toward the wall surface 8, and the suction end portion of the recovery cylinder 30 is connected to the side portion of the projection opening portion.
A separator 31 in which a large number of V-shaped cross-section rods are arranged side by side is provided in the upper end portion of the, and the discharge end portion of the recovery cylinder 30 is connected, and the upper end portion of the hopper 29 faces the upper portion of the separator 31. At the position, an air suction port 4 is provided, a discharge amount adjusting damper 32 is provided on the discharge side of the hopper 29, and a wall surface 8 is provided around the projection opening of the casing 25 and the opening of the recovery cylinder 30.
A rubber seal member 33 that is brought into contact with is attached.

When the concrete wall surface is ground and cleaned using the wall surface suction and cleaning device configured as described above, a vacuum suction source such as a vacuum pump connected to the dust collector in a state where the suction cup 2 is in contact with the wall surface 8. Is operated, negative pressure is generated in the suction cup 2, and the suction force of the negative pressure causes the suction cup 2 to move to the wall surface 8
The air that has been adsorbed on the suction cup 2 and has entered the suction cup 2 from between the hollow seal member 20 and the wall surface 8 of the suction cup 2 passes through the suction pipe 6 for sucking the particulate matter, the suction pipe 5, and the dust collector, and then is sucked by the vacuum suction source. It is sucked and discharged.

Further, the wall surface adsorption / cleaning device is moved along the wall surface 8 by driving the driving devices 10 and 11.

The flow rate of the granular abrasive material in the hopper 29 is adjusted by the damper 32 and continuously supplied to the central portion of the impeller 27, and then the granular abrasive material 28 is projected onto the wall surface 8 by the impeller 27 rotating at high speed. The wall surface 8 is ground and cleaned (polishing cleaning) by the projected granular polishing material 28. Further, the granular cleaning material projected by the impeller 27 is the wall surface 8
After being scavenged, the particles rebound from the wall surface 8 and the rebounded particles made up of the granular scavenging material and the scavenging and abraded material enter the hopper 29 from the collecting cylinder 30 by the suction force from the dust collector.

Among the granular materials that have entered the hopper 29, the heavy granular abrasive material descends without passing through the separator 31, passes through the damper 32 portion, and is sent to the central portion of the impeller 27, and then the impeller 27 again. Is projected on the wall surface. Further, the light-granulated and exfoliated material is sucked and transferred into the dust collector through the separator 31, the air suction port 4 and the suction pipe 5 by the suction force from the dust collector, and separated and removed from the air by the filter in the dust collector. It

[Problems to be solved by the device]

In the case of the conventional wall surface adsorption and cleaning device, the air that has entered from between the hollow seal material 20 and the wall surface 8 of the suction cup 2 is
Since the air suction port 4 of the blast cleaner 3 is sucked through the suction pipe 5 directly connected to the dust collector, in order to enhance the classification effect (separation effect) by the separator 31 in the blast cleaner 3, for example, the suction pipe 5 If the suction air volume is reduced, the negative pressure in the suction cup 2 becomes small and the suction performance of the suction cup 2 deteriorates, which is dangerous. Also, in order to improve the suction performance of the suction cup 2, the suction air volume of the suction pipe 5 is increased. Then, the granular abrasive material is sucked into the suction pipe 5 together with the abrasive stripped material, and the classification effect of the separator 31 is reduced. Therefore, suction pipe 5
It is difficult to determine the suction air volume of Further, in the case where the vicinity of the joints existing on the wall surface to be ground is ground and the like, it is necessary to increase only the suction air volume of the suction cup 2, which should be dealt with in the case of the conventional wall surface adsorption and cleaning device. There is a problem that you can not.

It is an object of the present invention to provide a wall surface suction / polishing device capable of setting the suction amount of powder / granule for suction of the polishing / cleaning device to an appropriate value and setting the suction force of the suction cup to a large value.

[Means for Solving the Problems]

In order to achieve the above object, in the wall suction and cleaning device of the present invention, a suction frame 2 having an opening toward a wall surface 8 is attached to a traveling frame 1 having traveling wheels and a drive device for traveling. In the above, the tip end portion is opened toward the wall surface 8 and a casing 25 accommodating the projection impeller 27 is provided inside, and the projection impeller 2 is provided.
The lower discharge port of a hopper 29 provided with a separator 31 located above the projection impeller 27 faces the central part of 7, and the tip end of the casing 25 and the upper part of the hopper 29 are collected. A granular polishing / cleaning material projection type cleaning / cleaning machine 3 was provided, which was connected by a cylinder 30 and was connected to an air suction port 4 of a suction pipe 6 for sucking powdery particles for connecting the upper part of the hopper 29 to a suction pipe 5. In the wall adsorption and cleaning device,
The inside of the suction cup 2 is connected to the suction pipe 5 through a suction pipe 7 for suction, and at least the suction pipe for sucking powder and granules among the suction pipe 6 for sucking powder and granules and the suction pipe 7 for suction. 6
An air flow rate adjusting device 34 is provided.

[Action]

Adjusting the air volume adjusting device 34 provided in the suction pipe 6 for sucking the particulate matter, which connects the air suction port 4 to the suction pipe 5 in the granular polishing material projection type cleaning and cleaning machine 3, reduces the suction force of the suction cup 2. Without this, the suction air volume in the polishing and sweeping machine 3 can be adjusted to an air volume in which the granular polishing and cleaning material and the polishing and stripping material are reliably separated.

〔Example〕

 Next, the present invention will be described in detail with reference to the illustrated example.

1 to 6 show an embodiment of the present invention, in which a traveling frame 1 is provided with a traveling device whose traveling direction can be adjusted and a suction cup 2 which is swiveled by a swiveling drive device 21. The granular polishing and cleaning material projection type cleaning and cleaning machine 3 is housed and fixed in the suction cup 2, and the air suction port 4 of the polishing and cleaning machine 3 is connected to a suction pipe 5 connected to a dust collector (not shown). The suction pipe 6 is connected via a suction pipe 6 for sucking the powder and granules, and the inside of the suction cup 2 is connected to the suction pipe 5 by a suction suction pipe 7
, And the suction pipe 6 for sucking the powder and granules is provided with the air flow rate adjusting device 34, and the suction pipe 7 for suctioning is provided with the air flow rate adjusting device 35. The constructions of the suction cup 2, the turning drive device and the blasting and cleaning device 3 are the same as those of the conventional wall surface adsorption and blasting device.

The structure of the air flow rate adjusting devices 34 and 35 will be described. A valve shaft 36 arranged on the diameter lines of the suction pipes 6 and 7 is rotatably supported by a bearing 37 fixed to the suction pipes 6 and 7, A circular valve body 38 arranged in the suction pipes 6 and 7 is fixed to 36, and a turning operation handle 40 is attached to a plate body 39 fixed to the end of the valve shaft 36. A circular arc-shaped long hole 41 centering on the valve shaft 36 is provided, and a screw rod 42 inserted in the circular arc-shaped long hole 41.
The base end portion of is fixed to the suction pipes 6 and 7, and on the outside of the plate body 39, a fixing female screw member 43 formed of a wing nut is screwed to the screw rod 42. The air volume adjusting device 3
When the air volume is adjusted by 4, 35, the handle 39 is used to loosen the fixing female screw member 43 and the plate 39
Then, the valve body 38 is rotated through the valve shaft 36, and then the fixing female screw member 43 is tightened to fix the plate body 39, the valve shaft 36, and the valve body 38 so as not to rotate.

When the concrete wall surface 8 is ground and cleaned using the wall surface suction and cleaning device configured as described above, the suction air amount of the powder and particle suction pipe 6 is adjusted to an appropriate value by the air amount adjusting device 34. And the suction pipe 7 for adsorption by the air volume adjusting device 35.
The amount of suction air of the device is adjusted so as to exert a suction force of a certain level or more, the grinding and cleaning device 3 is operated, and the traveling drive device 1
0 and 11 are driven to drive the wall surface adsorption and cleaning device along the wall surface 8.

In addition, when starting the cleaning work with the wall adsorption polishing machine,
A large amount of air is sucked in before the suction cup 2 is adsorbed on the wall surface 8. In this case, the air volume adjusting device 34 of the suction tube 6 for sucking the particulate matter is fully closed and the air volume of the suction tube 7 for suction is adjusted. By fully opening the device 35, it is possible to prevent the granular abrasive material in the abrasive cleaner 3 from passing through the separator 31 and being sucked into the dust collector side, so that the granular abrasive material can be effectively used.

In the case of implementing the present invention, as the air volume control devices 34 and 35, a remotely controlled electric air volume control device may be used. Further, the air volume adjusting device 35 of the suction pipe 7 for adsorption may be omitted.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

The wall suction and cleaning device of the present invention comprises a suction tube 6 for sucking powder and granules.
By adjusting the amount of suction air that passes through the suction pipe 6 for sucking powder and granules by the air volume adjusting device 34, the polishing agent and peeled material in the casing 25 are collected without reducing the suction force of the suction cup 2. Make sure to classify both in the hopper 29 part,
This has the excellent effect that the abrasive material can be collected in the projection type abrasive cleaner 3 and reused.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is a vertical sectional side view showing a usage state of a wall adsorption and cleaning device, and FIG. 2 is a front view of the wall adsorption and cleaning device. Fig. 3 is a partially vertical front view, Fig. 4 is a vertical side view showing a part of Fig. 1 in an enlarged manner, Fig. 5 is a side view of an air volume adjusting device, and Fig. 6 is Fig. 5. FIG. 9 is a sectional view taken along line AA of FIG. FIG. 7 is a vertical side view showing a state of use of the conventional wall surface adsorption polishing apparatus, FIG. 8 is a front view of the wall surface adsorption cleaning apparatus, and FIG. 9 is an enlargement of the wall adsorption apparatus cleaning apparatus. It is a vertical side view. In the figure, 1 is a traveling frame, 2 is a suction cup, 3 is a granular abrasive cleaning material projection type abrasive cleaner, 4 is an air suction port, 5 is a suction pipe, 6 is a suction pipe for sucking powders and granules, and 7 is a suction pipe for suction. , 8 is a wall surface, 9
Are rear traveling wheels, 10 and 11 are drive devices for traveling, 1
5 is a front traveling wheel, 19 is a metal suction cup body, 20 is a rubber hollow seal material, 21 is a turning drive device, 25 is a casing, 26 is an impeller drive device, 27 is a projection impeller,
28 is a granular abrasive, 29 is a hopper, 30 is a collecting cylinder, 31
Is a separator, 33 is a rubber sealant, and 34 and 35.
Is an air volume adjusting device, 36 is a valve shaft, 38 is a valve body, 39 is a plate body, 40 is a turning operation handle, 41 is an arc-shaped long hole, 4
Reference numeral 2 is a screw rod, and 43 is a female screw member for fixing.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Rokutanda 3-1, Honohara, Toyokawa-shi, Aichi Shinto Kogyo Co., Ltd. Toyokawa Plant (72) Inventor, Mitsuji Imaizumi 3-1-1, Honohara, Aichi Inside Toyokawa Manufacturing Co., Ltd. (56) References Japanese Patent Publication Sho 61-13953 (JP, B2)

Claims (1)

[Scope of utility model registration request] A suction frame (2) having an opening toward a wall surface (8) is attached to a traveling frame (1) having traveling wheels and a drive device for traveling, and inside the suction cup (2), a tip portion is opened toward the wall surface (8), and A casing 25 accommodating the projection impeller 27 is provided inside, and the projection impeller 27 is provided.
The lower discharge port of the hopper 29 provided with the separator 31 located above the projection impeller 27 is faced to the center of the casing 25, and the tip of the casing 25 and the hopper 2
A granular abrasive cleaning material projection type in which an air suction port 4 of a suction pipe 6 for sucking powder and granules for communicating the upper part of 9 with a collecting cylinder 30 and communicating the upper part of the hopper 29 with the suction pipe 5 is connected. In a wall surface adsorption / cleaning device provided with a polishing / cleaning machine 3, the inside of the suction cup 2 is connected to the suction pipe 5 through a suction pipe 7 for suction, and the suction pipe 6 for sucking the powder and granules and the suction pipe Among the suction pipes 7, at least the suction pipe 6 for sucking powder and granules is provided with an air volume adjusting device 34.