JPH0626024A - Muck withdrawal device for green cut face - Google Patents

Abstract

PURPOSE:To collect muck of a green cut face and receive the muck together with water in a receiver tank so as to improve productivity and efficiency by operating the suction device of a crawler type under carriage during running, and feeding pressure water to a water injection nozzle to inject it. CONSTITUTION:A suction device 27 is operated while running a crawler type under carriage 1, and pressure water is fed to a water injection nozzle 19. Muck on a green cut face 16 in a suction nozzle 14 is collected in the vicinity of the suction port by-injection water, and sucked together with water from the suction port. Next, they are automatically received into a receiver tank 22 through a muck transport hose 20 or a muck transport pipe. In this case, two set of tanks 22 are provided, and when one tank 22 is filled up, the transport pipe and the suction device 27 are changed to connect to the other tank 22, and the withdrawal is continued. Water in the tank 22 is discharged by a drain pipe 26, the tank is shifted in rear of the under carriage 1 by operating a slide cylinder, and a transport vehicle is prepared thereunder. Then a slide gate 24 is opened, and then the tank 22 is returningly moved to the under carriage 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for recovering scraps on a green cut surface, and more particularly to a device for recovering scraps formed on the surface by a green cut for forming a joint surface of dam concrete.

[0002]

2. Description of the Related Art Conventionally, the collection of scraps generated by green cutting using a motor sweeper (wire brush type) etc. is collected by workers with high pressure water, scooped with a wheel rotor etc., and finally vacuum suction It is done by sucking with a device.

[0003]

However, in the above-mentioned conventional scrap collecting work, the scrap collecting area per time is 2000
Since it was as wide as ~ 3000 m ^2, it required dozens of workers and a considerable amount of time. Therefore, the present invention is
It is an object of the present invention to provide a device for collecting scraps on a green-cut surface, which can save labor and improve construction capacity and productivity by mechanizing scrap collection.

[0004]

In order to solve the above-mentioned problems, a device for recovering misalignment of a green cut surface according to the present invention is provided with a boom attached to a front portion of a chassis and a green cut surface attached to a tip portion of the boom. It has a trapezoidal box shape that is widen from the front to the rear in the direction of movement, and is open to the lower and rear sides, and has a suction port on the front upper part. With a suction nozzle, a plurality of water injection nozzles attached to the rear part of the suction nozzle to inject water toward the suction port, pressure water supply means for supplying pressure water to each water injection nozzle, and mounted on the chassis And a receiver tank for accommodating the dripping water sucked from the suction nozzle, and a suction device mounted on the chassis to make the inside of the receiver tank a negative pressure for sucking the dripping water To have.

[0005]

In the above means, while traveling the chassis,
By operating the suction device and supplying the pressure water supply means and the pressure water to the water jet nozzle, the deviation on the green cut surface that has entered the suction nozzle is near the suction port by the water jetted from the water jet nozzle. The water is automatically collected in the receiver tank through the suction port together with water.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1, FIG. 2 and FIG. 3 are a side view, a plan view and a front view showing an embodiment of a device for recovering misalignment of a green cut surface of the present invention. At the center of the front part of the crawler type chassis 1, a base portion of a rectangular extension boom 3 which can be expanded and contracted by a built-in extension cylinder 2 is connected by a vertical pin 4 and a horizontal pin 5, and the extension boom 3 is A boom swing cylinder 6 is interposed between one side surface of the crawler type chassis 1 and the front center of the crawler type chassis 1, and a boom lift cylinder 7 is interposed between its upper surface and the front center of the crawler type chassis 1. Is swingable in the horizontal direction and the vertical direction.

At the tip of the extension boom 3,
A disk-shaped table holder 8 is attached by a horizontal pin 9, and this table holder 8 is a nozzle swing cylinder interposed between the upper surface of the tip of the extension boom 3 and a lever 10 fixed to the pin 9. It is provided so as to be swingable around the pin 9 by means of 11. A swivel table 12 is attached to a lower part of the table holder 8 by a nozzle swivel hydraulic motor 13 so as to be swivelable in a range of about 180 ° about a vertical axis.

The lower part of the turntable 12 is shown in FIGS.
As will be described in detail, the suction nozzle 14 is suspended by a plurality of spring suspension links 15 so as to be able to move up and down. The suction nozzle 14 sucks the gap on the green cut surface 16 together with the water by the operation of the suction device described later, and becomes wider from the front to the rear in the moving direction (right in FIGS. 4 and 5). In addition, it is formed in a trapezoidal box shape whose lower side (lower side in FIG. 4) and rear side (left side in FIG. 4) are open, and has a suction port 17 in the front upper part and is provided on both front and rear sides. In addition to the spring suspension link 15, the universal caster 18 is provided so as to be able to follow the green cut surface 16 at a required distance. A plurality of water jet nozzles 19 for jetting water toward the suction port 17 are attached to the rear upper surface of the suction nozzle 14 in order to gather the slippage in the suction nozzle 14 near the suction port 17. Each water injection nozzle 19 is connected to a pressure water supply means for supplying pressure water by a flexible hose (both not shown).

One end of a flexible shear transfer hose 20 is connected to the suction port 17 of the suction nozzle 14, and the other end of this flexible transfer hose 20 is mounted on the crawler track 1 and in front of it. It is connected to one end of the slip transport pipe 21 which is opened in the section. As shown in FIGS. 1 and 2, the other end of the slip conveying pipe 21 is appropriately switchably connected to two receiver tanks 22 mounted on the rear portion of the crawler type chassis 1. Each receiver tank 22 is for accommodating the slip and water sucked from the suction nozzle 14, and by the tank slide cylinder 23 mounted on the track type carriage 1, the track type chassis 1
Is provided so as to be individually movable upward and backward, a lower slide gate 24 is provided so as to be openable and closable by a gate opening / closing cylinder 25, and a drain pipe 26 for discharging stored water is provided at a rear side portion. It is attached. And
Each receiver tank 22 is mounted on the front side of the crawler-type chassis 1, and is appropriately switchably connected to a roots blower type suction device 27 that applies negative pressure to the receiver tank 22 to suck the slip and water. .

1 to 3, 28 is a driver's seat, 29,
Reference numeral 30 is an operation lever and an operation panel provided in front of the driver's seat 28, 31, 32 and 33 are fuel tanks, hydraulic oil tanks and hydraulic units provided in the rear of the driver's seat, and 34 is a side of the driver's seat. It is a control panel installed in.

In the device for recovering misalignment of the green cut surface having the above-described structure, the suction device 27 is operated while the track type chassis 1 is running, and the pressure water is supplied from the pressure water supply means to the water jet nozzle 19. , Suction nozzle 1
The gap on the green cut surface 16 that has entered the inside 4 is gathered in the vicinity of the suction port 17 by the water jetted from the water jet nozzle 19 and sucked together with the water from the suction port 17, and the slide transport hose 20 and the slide transport pipe are provided. It is automatically accommodated in the receiver tank 22 via 21. Therefore, since the misalignment of the jet water and the accommodation in the receiver tank 22 by the suction device 27 are automatically performed at the same time, the number of workers can be significantly reduced and the construction capacity and the productivity can be remarkably improved. You can Next, when one of the receiver tanks 22 is full, the slip conveying pipe 21 and the suction device 27 are switched and connected to the other receiver tank 22 to continuously collect the slips, and at the same time with the one receiver tank 22. Break the connection. With this interruption, the water in the one receiver tank 22 is discharged from the drain pipe 26. Then, after the drainage is completed, the tank slide cylinder 23 is operated to move the one receiver tank 22 to the upper rear side of the crawler type truck 1, and the slide carrier (not shown) is positioned below it, and the gate opening / closing cylinder 25 Is operated to open the slide gate 24 to discharge the misalignment. Then, the slide gate 24 is closed, and the receiver tank 22 is moved back to the track type undercarriage 1. Hereinafter, the scrap recovery work is performed while the receiver tanks 22 are alternately switched and used.

In the case of the slip recovery work, when the slip recovery position is near the side edge of the track type chassis 1 due to the limitation of the traveling position of the track type chassis 1 or the like, the extension boom 3 is extended from the extension cylinder 2 and the boom swing is performed. Extension boom 3 by cylinder loader 11
When the green cut surface 16 is inclined, the nozzle swing cylinder 11 swings the suction nozzle 14 in accordance with the inclination to perform the work. The extension boom 3 is tilted by the boom lift cylinder 7 in order to save space.

Incidentally, in the above-mentioned scrap collecting device,
In order to allow the suction nozzle 14 to follow the green cut surface 16 while maintaining a required space, the suction nozzle 14 is suspended by the spring suspension link 15 on the revolving table 12, and the suction nozzle 14 can be freely attached to the front and rear sides of the suction nozzle 14. The casters 18 are provided, but the present invention is not limited to this.
For example, as shown in FIG. 6, a sensor 35 that follows the green cut surface 16 and detects between the suction nozzle 14 and the green cut surface 16 is attached to the front portion of the suction nozzle 14 without providing the free caster 18. On the basis of a signal from the sensor 35, the cut surface following servo cylinder 36 interposed between the spring suspension links 15 is operated to cause the suction nozzle 14 to follow the green cut surface while keeping a required distance. Good.

[0014]

As described above, according to the deviation collecting device for the green cut surface of the present invention, the suction device is operated while the chassis is running, and the pressure water is supplied from the pressure water supply means to the water injection nozzle. By supplying, the deviation on the green cut surface that has entered the suction nozzle is gathered near the suction port by the water jetted from the water jet nozzle,
Since the water is automatically stored in the receiver tank from the suction port together with water, the number of workers can be significantly reduced as compared with the related art, and the construction capacity and the productivity can be significantly improved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a deviation collecting device for a green cut surface according to the present invention.

FIG. 2 is a plan view of the deviation collecting device for the green cut surface shown in FIG.

FIG. 3 is a front view of the deviation collecting device for the green cut surface shown in FIG. 1.

FIG. 4 is a side view of a suction nozzle of the deviation collecting device for the green cut surface shown in FIG. 1.

5 is a plan view of a suction nozzle of the deviation collecting device for the green cut surface shown in FIG. 1. FIG.

6 is a side view of another suction nozzle of the deviation collecting device for the green cut surface shown in FIG. 1. FIG.

[Explanation of symbols]

 1 Track type chassis 3 Extension boom 14 Suction nozzle 15 Spring suspension link 16 Green cut surface 17 Suction port 18 Flexible caster 19 Water injection nozzle 22 Receiver tank 27 Suction device 35 Sensor 36 Cut surface following servo cylinder

Claims (1)

[Claims] 1. A boom attached to the front of the chassis,
It is attached to the tip of the boom and is provided so that it can follow the green cut surface while maintaining the required spacing.
It becomes wider as it goes from the front to the rear in the moving direction, and it is formed into a trapezoidal box shape with the lower and rear sides open, and has a suction nozzle with a suction port at the front upper part, and is attached to the rear part inside the suction nozzle, A plurality of water injection nozzles for injecting water toward the mouth, pressure water supply means for supplying pressure water to each water injection nozzle, and a receiver mounted on the chassis for accommodating the slip and water sucked from the suction nozzles. A device for collecting sludge on a green cut surface, which is equipped with a tank, and a suction device which is mounted on a chassis and has a negative pressure inside the receiver tank for sucking sludge and water.