JP3164455U - Water jet chiseling equipment - Google Patents

Abstract

[PROBLEMS] To provide a water jet chipping device that is automated and has high work efficiency at a low cost while preventing the splashing of water and chipping pieces in a chipping operation of a concrete wall and reliably collecting them. A water jet spray nozzle 1 is mounted on an XY moving mechanism to automatically chip. The moving mechanism is moved by using the chain 6 and the sprocket 7 together while being mounted on the rail so that the moving mechanism can move without slipping. The entire nozzle and the moving mechanism are covered with covers 8 to 12 having a funnel shape at the bottom. A flexible seal member is attached to the portion of the cover that contacts the chip surface to eliminate the gap and prevent scattering. Water and debris flow down through the cover and collect underneath for discharge. [Selection] Figure 1

Description

  This device relates to a chipping device for a concrete wall using a water jet.

Accidents may occur in which the deteriorated concrete peels off the walls of the tunnel, etc., and as a countermeasure, the work of removing the deteriorated part and renewing the concrete is performed. One method of removal is a chisel using a water jet.
It is heavy labor to manually perform the chiseling work and the work of collecting the scattered water and chipping pieces, which is mechanized and automated. However, there is a problem that the cost is higher than other methods such as recovery of water / chipping pieces using the device itself or a vacuum pump.

  Patent Document 1 discloses a device that attaches a cover that covers an injection nozzle, attaches a vacuum hose to the cover, and vacuums water and chip pieces. There is a concern that the nozzle portion becomes large and complicated, and that vacuum suction can be sufficiently performed when the unevenness of the chipped surface is large.

  Patent Document 2 discloses a method that does not use vacuum suction by forming a cover attached to an injection nozzle into a shape in which water and chip pieces flow and collect. In this method, it is necessary to strongly press the cover so that it does not scatter from between the chip surface and the cover, so that the resistance when moving is increased and a large driving force is required.

There is also a device that fixes the cover and covers the entire movement range of the nozzle with the cover.
Patent Document 3 is a device that performs horizontal cutting, but an arm is extended from an XY movement mechanism, an injection nozzle is attached to the tip, and a cover covers the movement range of the arm and the nozzle.
The moving range is determined by the size of the XY moving mechanism. Therefore, the movement range of the arm is narrow relative to the size of the device.

Registered utility model No. 3445559 Water pressure treatment head for concrete wall surface and water pressure treatment device for concrete wall surface etc. Patent Publication 2006-102930 Suspension Type Continuous Chest Drainage, Residue Recovery Type Water Jet Horizontal Deburring Machine Patent Publication 11-350747 Hanger

  A water jet chipping device that is highly automated and has high efficiency, and prevents water and chipping pieces from being scattered and reliably collects them with a simple structure at low cost.

A water jet spray nozzle is mounted on an XY moving mechanism, and the chip is efficiently crushed while moving automatically.
Cover the entire nozzle and moving mechanism with a cover. The cover is a device that can be reliably recovered by attaching a flexible sealing member to the part in contact with the chipping surface to eliminate the gap and prevent scattering, and making the lower part funnel-shaped and collecting water and chipping pieces together Is realized.

Compared with the devices of Patent Documents 1 and 2, the present invention has a simple nozzle structure because the nozzle is not provided with a cover, a vacuum suction device or the like. Since there is no friction between the cover and the chip surface during movement as in Patent Document 2, the driving force of the motor is small. Compared with the device of Patent Document 3, the processing range is wide with respect to the size of the device.
As described above, a chipping device having a wide processing range at low cost can be provided.

Front view of the water jet chipping device Side view of water jet chipping device

A front view and a side view of the water jet chipping device are shown in FIG.
In order to show the inside, FIG. 1 shows a part of the front surface 12 of the cover, and FIG. 2 shows a part of the left frame 9 of the cover and the left vertical rail 4 except.
The injection nozzle 1 moves left and right on the rail 2 in the horizontal direction. The rail 2 moves up and down on the rail 4 in the vertical direction. The nozzle 1 can move reliably without slipping even when the rail is wet (particularly vertical movement). As the method, for example, the chain 6 is attached in parallel with the rail and meshed with the drive sprocket 7.

A cover that covers the entire nozzle and rail will be attached to prevent splashing of water / chipping pieces and to reduce noise.
The cover has a generally pentagonal box shape, and includes an upper frame 8, left and right frames 9, 10, a funnel-shaped lower frame 11, and a front surface 12.
A flexible seal member 15 is attached to a portion in contact with the chipping surface 14 to eliminate a gap and prevent scattering from the gap. The seal member 15 uses a brush, rubber or the like.
The front surface 12 is made of a sheet or the like, and is removed or opened so that the chipped surface 14 can be seen. Thus, the finish of the chipped surface 14 can be confirmed without moving the device.
The work is performed by a procedure of fixing the device to the target wall surface 14, closing the front surface 12, crushing, opening, confirming the finish, and moving to the next place.

The overall configuration of the device is composed of a control device for automatic operation, a water supply tank, a high-pressure pump, a filtration device, and the like.
High-pressure water is sent from the water supply tank to the nozzle 1 through the high-pressure pump and the high-pressure hose 16, and the chipping is performed. The water that has flowed down to the drainage hose 13 is removed by a filtration device. The filtered water can be reused if there is no problem such as ph.
This device can also be used for peeling paint, cleaning wall surfaces, etc. by adjusting the pressure, amount of water, etc.

Considering the maintenance of roads, tunnels, bridges, buildings, etc. in various parts of the country, there are a large number of concrete structures that are the subject.
The chipping device of the present invention has features such as high work efficiency, a large processing area with respect to the size of the device, and a simple structure that can be provided at a low cost. Therefore, the present invention is considered to be widely used.

DESCRIPTION OF SYMBOLS 1 ... Nozzle 2 ... Horizontal rail 3 ... Horizontal moving motor 4 ... Vertical rail 5 ... Vertical moving motor 6 ... Chain 7 ... Sprocket 8 ... Cover (upper frame)
9 ... Cover (left frame)
10 ... Cover (right frame)
11 ... Cover (lower frame)
12 ... Cover (front side)
13 ... Drain hose 14 ... Chest surface (wall surface)
15 ... Sealing member 16 ... High pressure hose

Claims (1)

  A device that crushes a concrete wall surface using a water jet, and attaches an injection nozzle to an XY movement mechanism to work while moving automatically, and the lower part of the nozzle and the movement mechanism are funnel-shaped and in contact with the wall surface A chiseling device having a structure in which water and chisel pieces flow down and collect without being scattered outside by covering with a cover with a flexible sealing member attached thereto.

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