JPH04289379A - Mounting method for guide rail for cutting machine - Google Patents

Abstract

PURPOSE:To easily fix a guide rail for a cutting machine to a concrete skeleton. CONSTITUTION:An attachment 5 fitted to a guide rail 4 is provided to the tip section 3 of an arm 2 capable of bending in a construction machinery 1 such as an excavator capable of turning as well as having a self-traveling device or a concrete breaker, etc., and the end 4a of the guide rail 4 mentioned above is fitted to the attachment 5. In addition, the guide rail 4 is pushed to a concrete skeleton 7 and, at the same time, a shore 6 is projected from the construction machinery 1 to bring the tip 6a thereof into contact with the other end 4b of the guide rail 4. The guide rail 4 is pushed to the concrete skeleton 7, and the guide rail 4 is positioned and fixed to the concrete skeleton 7 to be cut to mount.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for attaching a guide rail to a cutting machine equipped with a cutter blade used for demolishing concrete structures.

0002

[Prior Art] Conventionally, there have been methods for demolishing old concrete buildings and rebuilding them, such as by colliding steel balls against walls, etc., or by blasting them, but these methods can cause noise pollution, It had many disadvantages, such as being unsuitable for Japan's reinforced concrete structures.

[0003] Therefore, in order to demolish concrete structures without causing any pollution, cutting machines that are equipped with a cutting cutter and a motor for driving the cutter and are movable along guide rails have recently been used.

[0004] To explain this with reference to FIGS. 2 and 3, the cutting machine 10 in FIG. 13, a pipe 15 for supplying cooling water to the cutter 11, a hydraulic device connected to the main body via a hydraulic pipe, and the like.

[0005] Furthermore, the cutting machine 16 in FIG.
It has a configuration without a moving device, and is basically the same as the cutting machine 10 described above, and corresponding parts are given the same reference numerals. A chain is then hooked onto the locking tool 17 to be pulled.

[0006] Using such cutting machines 10 and 16,
For example, when cutting the stairs of an old concrete structure into pieces, or fixing the guide rail 13 to the wall with anchor bolts, etc., the sliding part 1 of the cutting machine 16 is attached to the guide rail 13.
8 is slidably straddled, and the cutter 11 is rotated to cut concrete walls and reinforcing bars while being pulled upward with a chain or the like.

After cutting the walls, columns, beams, etc. of the concrete structure 19, the concrete structure 19 is lowered by a crane or the like and transported by truck to a waste disposal site.
As shown in (a) to (d), the concrete structure 19 is to be demolished.

[0008]

However, in the method for dismantling a concrete structure described above, the guide rail 13 for the cutting machine had to be firmly fixed to the concrete frame with bolts, nuts, etc. This fixing work is time-consuming in demolition work where speed is required, and the fixing process is also poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for easily fixing a guide rail for a cutting machine.

0010

[Means for Solving the Problems] The gist of the present invention for solving the above-mentioned problems and achieving the above-mentioned objects is to provide a cutting machine that is movably straddled over a cutting machine that cuts a concrete structure with a rotatable cutter blade. In the method of attaching a guide rail to a concrete frame to guide the movement of a cutting machine,
An attachment fitted to the guide rail is provided at the tip of a flexible arm of a construction machine, such as an excavator or a concrete crusher, which is equipped with a self-propelled device and is freely rotatable, and the attachment is fitted to one end of the guide rail. and pressing the guide rail against the concrete frame; at the same time, protruding a shoring from the construction machine, bringing the tip of the shoring into contact with the other end of the guide rail, and pressing the guide rail against the concrete frame; This method consists in attaching a guide rail in a fixed position to the concrete frame to be cut.

[0011]

[Operation] Extend the arm of the construction machine, use the attachment at the tip of the arm to press one end of the guide rail toward the concrete structure, and then use the shoring to press the other end of the guide rail toward the concrete structure in the same way. By doing so, the guide rail is fixed at a predetermined position.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. FIG. 1(a) is an explanatory view showing the implementation of the method for installing a guide rail for a cutting machine according to the present invention, and FIG. 1(b) is a partially enlarged explanatory view.

First, a guide rail 4 is attached to the tip 3 of a flexible arm 2 of a construction machine 1 such as a self-propelled excavator (for example, a power shovel or a backhoe) or a concrete crusher.
A metal attachment 5 is provided to which one end 4a of the metal attachment 5 is fitted. The attachment 5 is approximately U-shaped as shown in FIG. 1(b). The guide rail 4 is a metal rectangular (or H-shaped) square piece that is long in one direction. The appropriate length is used depending on the cutting location (stairs, walls, pillars, beams, etc.), but for example, 3.
~6m.

Next, the shoring 6 is installed from the bottom of the construction machine 1.
protrude approximately horizontally. Then, the tip 6a is brought into contact with the lower end 4b of the guide rail 4, and the construction machine 1
Press it against the concrete frame 7. Further, the attachment 5 also presses the guide rail 4 against the concrete frame 7.

[0015] Then, the movable part (numeral 18 in FIG. 2(B)) of the cutting machine 10 (or 16) is made to straddle the guide rail 4 which is pressed against the concrete frame 7 and fixed in position. Then, while cutting the concrete body 7 to a predetermined depth by rotating the cutters 11 of the cutting machines 10 and 16 (approximately 3000 rpm), the cutting machines 10 and 16 are moved along the guide rail 4 by hydraulic drive, chain traction, etc. , 16 are moved.

In this way, the method for installing the guide rail for a cutting machine is carried out. Although the cutting machines 10 and 16 weigh about 50 to 100 kg, the guide rail 4 is firmly pressed and fixed to the concrete frame 7 by the arm of the construction machine 1 and its main body, so it does not wobble and is stable. It is possible to carry out cutting work.

When the cutting work is completed, the cutting machine 1
0 and 16 from the guide rail 4, and remove the construction machine 1.
What is necessary is to retreat from the concrete frame 7, release the pressure on the attachment 5 and the shoring 6, and remove the guide rail 4.

[0018]

As explained above, the method for attaching a guide rail for a cutting machine according to the present invention can be applied to the tip of a bendable arm of a construction machine such as an excavator or a concrete crusher that is equipped with a self-propelled device and can rotate freely. An attachment that is fitted onto the guide rail is provided in the section, and the attachment fits one end of the guide rail and presses the guide rail against the concrete frame, and at the same time, the shoring is protruded from the construction machine. The tip of the guide rail was brought into contact with the other end of the guide rail and the guide rail was pressed against the concrete structure, and the guide rail was fixed and attached to the concrete structure to be cut, so that the guide rail was firmly positioned on the concrete structure. Even though the cutting machine is fixed and heavy, stable cutting work can be performed, and the positioning and removal of the guide rail can be easily performed with simple work, leading to improvement in work efficiency.

[Brief explanation of the drawing]

FIG. 1(A) is an explanatory view showing the implementation of the method for installing a guide rail for a cutting machine according to the present invention, and FIG. 1(B) is a partially enlarged explanatory view.

FIG. 2 is an explanatory diagram showing the usage state of a guide rail for a cutting machine according to a conventional example.

FIG. 3 is an explanatory diagram illustrating how a concrete structure is dismantled.

[Explanation of symbols]

1 Construction machinery, 2 Construction machine arm, 3 Tip of the arm, 4 Guide rail, 5 Attachment 6 Shoring, 7. Concrete frame, 10,16 Cutting machine.

Claims (1)

[Claims] Claim 1: A method for attaching to a concrete body a guide rail that is movably straddled over a cutting machine that cuts the concrete body with a rotatable cutter blade and that guides the movement of the cutting machine during the cutting operation, the self-propelled device comprising: An attachment that is fitted to the guide rail is provided at the tip of a bendable arm of a construction machine such as an excavator or a concrete crusher that is rotatable and can be rotated, and one end of the guide rail is fitted with the attachment. At the same time, a shoring is protruded from the construction machine, its tip is brought into contact with the other end of the guide rail, and the guide rail is pressed against the concrete framework to cut the material to be cut. A method for installing a guide rail for a cutting machine, characterized in that the guide rail is installed in a fixed position on a concrete frame.