JP3142767U - Wire saw cutting direction changer - Google Patents

Abstract

The present invention simplifies wire saw support installation conditions, simplifies installation work by reducing the size of the device itself, improves productivity by reducing the time required for installation, and changes the direction of wire saw cutting that is light and easy to handle. Providing the device.
A wire saw cutting direction changing device includes a pair of upper and lower pulleys attached to a bracket by a pulley support frame at a predetermined distance so as to freely move around a rotation axis, and end surfaces of upper and lower pulleys on which wires are hung are provided. Regardless of the position angle of the pulley, the main feature is that it is positioned in line with the axis of the pivot shaft.
[Selection] Figure 1

Description

The present invention relates to a wire saw cutting direction changing device used for cutting a cut object at a stone mining site and a construction demolition site, and a ground stone or concrete cutting method using the same.

With the recent mechanization of stone mining sites, wire saws that cut natural ground have become widespread, and improvements have been added.
In conventional wire saws, it is mainstream to perform a cutting operation while retracting the wire driving device on the same line with respect to the cutting direction, and a space in which the driving device moves is required behind the cutting direction. For this reason, there are cases where it is difficult to work in a narrow field, but as a means for solving this, the applicant has filed a patent application and registered a cutting direction conversion device capable of changing the installation location of the drive device.

  This is because the drive device can be moved in only one direction, but the pulley that supports the wire is changed from a fixed type to a flexible type that allows the angle to be freely changed. It can be installed in. This made it possible to perform cutting work in a narrow field. FIG. 11 is a perspective view of a conventional cutting method.

However, there are some problems to improve workability and versatility on site. In order to feed out the wire, a pulley that supports the wire is attached to the support column. However, since this pulley is fixed, it is necessary to install the pulley perpendicularly to a cutting object such as a stone. Therefore, when cutting another part, it is necessary to change the position of the support column and perform positioning work again, and since the device itself including the support column is large-sized, heavy equipment is required for installation, and installation work is required. It was time consuming and labor intensive. Although there was a considerable degree of freedom in the installation position of the drive device, there were many conditions that were limited to the installation of the support.
Japanese Patent No. 2119889

The problem to be solved is to simplify the installation conditions at the time of wire saw support installation work, simplify the installation work by downsizing the equipment, improve productivity by reducing the time required for installation, and handle with light weight It is possible to cut various cut objects by using a combination of a cutting method and apparatus such as a wire saw cutting direction conversion device and a natural stone material.

In the wire saw cutting direction changing device of the present invention, a pair of upper and lower pulleys attached to a bracket by a pulley support frame at a predetermined distance is freely movable around a rotation axis, and an end surface of a pulley for hanging a wire is an angle of the pulley. Even if is changed, the main feature is that it is positioned in line with the axis of the pivot shaft. Moreover, the efficiency of wire-hanging work improves by making the support frame which supports a pulley into only one side.

By adopting a structure in which a bracket for attaching a pair of upper and lower pulleys is divided into a bracket so as to separate the upper and lower pulleys, the pulley can be used alone and can be applied to various uses of cutting methods.

The bracket is fixedly attached to the support column. By using the support column as a column, the bracket can be mounted not only in the vertical direction but also in the horizontal direction. This bracket is desirably used as a pair of a wire feeding side and a drawing side.

The length of the column can be freely determined, but it can be made long enough to avoid the problem in consideration of the number of brackets attached and the like, and the entire apparatus can be downsized. The bracket is detachable and can be an assembly-type device.

Since the pair of pulleys attached to the bracket can freely rotate, the cutting wire passing through the pulleys can be converted into the direction of the cut object and the driving device, and positioning work at the time of installing the support column becomes unnecessary. Furthermore, the efficiency of wire-hanging work can be improved by fixing the pulley support frame from one side.

Since the mounting position of the bracket with respect to the support can be freely adjusted in the vertical and horizontal directions, the position can be adjusted as necessary according to the direction of the workpiece and the driving device.

The length of the support column is also flexible and can be miniaturized, the bracket can be attached and detached, and it can be assembled, the handleability of the device is improved, and heavy machinery is not required.
By using a structure in which the bracket is divided so that the pair of upper and lower pulleys are separated, the pulley can be used alone and can be applied to various uses of the cutting method.

Because it is cutting with wire, it is very quiet and can minimize noise damage to the neighborhood compared to those using explosives and heavy machinery.

Details will be described based on examples.

FIG. 1 shows a pulley support frame attached to a bracket and a pulley attached to the pulley support frame. The pair of upper and lower pulleys are attached to pulley support portions provided above and below the bracket by a pulley support frame at a predetermined distance via a bearing. At this time, the end face of the pulley that engages the axis of the rotating shaft and the wire is attached to the bracket so that it is positioned in line with the axis of the rotating shaft even if the angle of the pulley changes around the rotating shaft. .

In consideration of work efficiency, the pulley support frame preferably has a single-sided structure. However, in this case, since the wire is easily detached, a cover or the like for preventing the removal may be attached. Of course, as shown in FIG. 5, the structure which pinches | interposes a pulley from both sides may be sufficient.
FIG. 2 shows when the upper pulley is rotated at an angle of 90 degrees with respect to the lower pulley, and FIG. 3 shows when the lower pulley is rotated at an angle of 90 degrees with respect to the upper pulley.

FIG. 4 is a perspective view of an example in which the bracket is attached to the column. FIG. 7 is a plan view of the bracket attached to the support column. Fix the bracket to the column using U-bolts. As a result, it is possible to freely attach 360 degrees around the support column.

Fixing hardware is fixed to the upper and lower ends of the column and fixed with a branch line for tension, or the column is fixed with an anchor bolt.

FIG. 9 is a perspective view of an example of a cutting method. A mode that the direction of the wire with respect to a cut material and the moving direction of a drive device can be changed is shown.

FIG. 8 is a perspective view of an example of a state in which a hole is formed at a substantially central portion of the pole below the support and attached to the support frame with the pole. By taking this structure, it is also possible to use the column tilted.

FIG. 6 is a side view of the structure in which the bracket is divided. A pair of upper and lower pulleys can be separated and used alone or in combination. FIG. 10 is a perspective view of an example of a cutting method for cutting a stone that appears on a slope. Lay rails on both sides of the stone, and attach the aforementioned single pulley to the carriage that moves on the rails.
A single pulley is fixed to the lower part of the stone to the wire saw cutting conversion device of the present invention and the support, and the wire saw is operated and cut by a post-path drive device.

Conventionally, in order to exclude stones that appeared on the slopes at road construction sites, explosives were explosive, and hydraulic breakers were pulverized, but temporary construction was suspended due to problems such as pebbles flying on the road. Such delicate management is necessary. According to the method of the third embodiment, it is possible to perform a really quiet cutting operation without worrying about pebbles scattering and without causing an explosive sound like explosives or bicker.

It can be used not only for cutting rocks and stones, but also for cutting concrete in buildings, etc., and it can be used for all types of wire saws because it only changes the direction of the wire with a free pulley attached to the bracket. It is.

Side view of pulley support frame and pulley attached to bracket Side view of the top pulley attached to the bracket, rotated 90 degrees Side view of the lower pulley attached to the bracket rotated 90 degrees A perspective view of an example with the bracket attached to the column Side view showing structure to support pulley from both sides of pulley Side view with bracket divided structure Top view of the bracket attached to the column Front view of an example of a state where a hole is drilled on the underside of the column and attached to the column support frame with a pole Perspective view of an example of cutting method Perspective view of an example of a cutting method when cutting stones appearing on a slope Perspective view of conventional cutting method

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bracket 2 Pulley support frame 3 Pulley 4 Rotating shaft axis 5 Pulley support part 6 Bearing 7 Support column 8 U bolt 9 Nut 10 U-shaped frame 11 Wire 12 Drive unit 13 Rail 14 Branch line 15 Cut object 16 Support frame 17 Paul 18 foundation 19 slope

Claims (6)

A wire saw that uses a pulley attached to a column, and a pair of upper and lower pulleys that are attached to the pulley support part of the bracket that is attached to the column by a pulley support frame at a predetermined distance, freely movable around the rotation axis A wire saw cutting direction changing device characterized in that the end face of the pulley on which the wire is hung is positioned in line with the axis of the rotating shaft regardless of the change in the angle of the pulley. 2. The wire saw cutting direction changing device according to claim 1, wherein the pulley has a structure in which the pulley is supported only by a support frame on one side. The wire saw cutting direction changing device according to claim 1 or 2, wherein a bracket to which a pair of upper and lower pulleys are attached is divided so as to separate the upper and lower pulleys. The wire saw cutting direction according to any one of claims 1 to 3, wherein the column can be turned in a horizontal direction by using a column as a column and using a U-bolt for fixing the bracket to the column. Conversion device. The wire saw cutting direction changing device according to any one of claims 1 to 3, wherein the bracket can be attached to and detached from the support column. 4. The wire saw cutting direction changing device according to any one of claims 1 to 3, wherein a hole is formed on a lower side of the column and attached to the column support frame with a pole.