JP2520310Y2 - Guide device for wire saw - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for a wire saw, and more particularly to a guide device for changing the direction of the wire saw from horizontal to vertical.

[0002]

2. Description of the Related Art As a construction method used for dismantling tower-shaped concrete structures such as chimneys or columns, endless diamond wires are wound around the structure body and a predetermined tension is applied to the diamond wires. A diamond wire saw method is known in which the body is cut while running while running, and the details thereof are shown in, for example, Japanese Patent Publication No. 3-53426.

In this type of construction method, for example, when dismantling a pillar, a diamond wire driving device is usually installed on the floor, the diamond wire is wound on the upper side of the pillar, and the pillar is moved from the upper side to the lower side. A predetermined height is cut toward the. In such construction, it is necessary to convert the diamond wire wound in the horizontal direction with respect to the skeleton to the vertical direction and guide it to the floor-side drive device.

Therefore, for example, in Japanese Utility Model Laid-Open No. 62-16600.
No. 7 publication proposes a guide pulley base for converting a wire saw from a horizontal direction to a vertical direction. The guide pulley base disclosed in this publication includes a support frame fixed to a body and a plurality of guide pulleys rotatably supported by the support frame, and a pair of horizontal pulleys facing the guide pulley. , A pair of vertical pulleys, and a center line between opposing vertical pulleys is orthogonal to a line connecting the rotation centers of the horizontal pulleys and is located between the centers of the horizontal pulleys. However, the guide pulley base having such a structure has the technical problems described below.

[0005]

That is, in the guide pulley base disclosed in the above publication, when the drive pulley for rotating the diamond wire has a structure in which the drive pulley rotates in the horizontal direction with the vertical axis as the rotation axis. Since the pair of vertical pulleys are arranged to face each other, there is no inconvenience.
However, for example, in an actual construction site, it is often the case that there is not enough space around the frame to be cut to install the drive unit.In such a work site, the drive pulley should be installed on the side of the frame. However, under such working conditions, the guide pulley base disclosed in the publication could not be used as it is.

By the way, in response to such technical problems
For example, in Japanese Patent Laid-Open No. 63-151790,
A pair of horizontal pulleys and a pair of vertical pulleys on this horizontal pulley
Are placed close to each other, and the drive pulley placed on the side of the body
Convert the wire saw from the vertical side to the horizontal side, and
Means for cutting flat are disclosed. However, this is
Even such means had the problems described below. This bulletin
According to the means disclosed in U.S.A.
If there is no work space around the body, you can place
However, cutting work can be done, but another guide device is installed close to the body.
Since the equipment is installed, the length of the wire saw is
Not only is it long and uneconomical, it also complicates the configuration.
Ri, also take time to winding of a wire saw.

[0007] For such problems, for example,
The guide device placed in close proximity can be removed,
If this guide device is removed, the wire saw
As the cutting progresses, the drive pulley gradually separates from the body
And the guy attached to the drive pulley and body
The distance from the device becomes longer. However, like this
Then, the wire saw moves between these
They may hang down and come into contact with each other. The present invention has been made in view of such conventional problems, and an object thereof is to drive a wire saw whose direction is changed from a horizontal direction to a vertical direction, which is installed on a side of a body to be cut. (EN) It is possible to provide a guide device that can be wound around a pulley as it is and can avoid mutual contact of wire saws .

[0008]

To achieve the above object, the present invention comprises a support frame fixed to a skeleton and a plurality of guide pulleys rotatably supported by the support frame. In the guide device for changing the direction of the wound wire saw, the guide pulley is
Align the pair of horizontal pulleys with the plane of rotation of the pair of horizontal pulleys.
A pair of vertical pulleys whose rotating surfaces are set on the intersecting surfaces, and
Auxiliary pulley whose rotation surface is set to the same plane as the vertical pulley of
And the horizontal pulleys are spaced apart from each other by a predetermined distance.
The wire saw is placed on a support frame and is attached to the body side.
The vertical pulley is connected to the pair of
The outer peripheral edges are arranged close to each other inside the horizontal pulley.
And the auxiliary pulley is substantially the same as the pair of vertical pulleys.
At the intermediate position, separated from the side opposite to the horizontal pulley
Are arranged so as to adjust the lead-out direction of the wire saw.
Of the drive device installed on the side of the body.
One end of the wire saw from the drive pulley is the vertical
Through one of the pulleys and placed close to this vertical pulley
So as to go around one outer peripheral side of the horizontal pulley
Together wound around the said skeleton with, circumferential said precursor
Place the turned wire saw around the other outer circumference of the horizontal pulley.
From the side, the vertical puller located close to this horizontal pulley
Through the inside of the other of the auxiliary pulley
The drive pulley is wound around the outer periphery of the side opposite to the vertical pulley.
It is characterized by returning to.

[0009]

According to the wire saw guide device having the above structure,
Since the rotating surfaces of the pair of vertical pulleys are provided on the line orthogonal to the line connecting the centers of rotation of the pair of horizontal pulleys, the wire saw that is turned from horizontal to vertical is on the same vertical surface as the vertical pulley. Can be derived in parallel. In this case, the guiding device is a pair of horizontal and vertical.
In addition to the pulley, the vertical pulley and rotation surface are set to the same surface.
Has an auxiliary pulley for adjusting
Insert one end of the saw through the inside of one of the vertical pulleys.
The auxiliary plug located on the opposite side of the vertical pulley from the other end.
Since it is wound around the outer circumference of the pulley and returned to the drive pulley side,
Between the wire saw existing between the idling device and the drive pulley
The gap can be widened.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. 1 and 2 show an embodiment of a wire saw guide device according to the present invention.

The guide device 10a shown in the figure is applied when the columnar frame 12 is cut on the surface of the floor 13, and is provided with a support frame 34 and a plurality of guide pulleys 36. The support frame 34 is composed of a base plate 34a fixed to the floor 13 adjacent to the body 12, and a substantially cross-shaped frame portion 34b. Guide pulley 3
6 is composed of five first and second horizontal pulleys 36a and 36b, first and second vertical pulleys 36c and 36d, and auxiliary pulley 36e.

The first and second horizontal pulleys 36a and 36b are
The rotation planes are set so as to be located on the same plane, and the rotation centers are set on the same straight line. First and second
The planes of rotation of the vertical pulleys 36c and 36d are the first and second horizontal planes.
The center of rotation of the pulleys 36a, 36b is set on the same plane, and the line B connecting them is the line A connecting the centers of rotation of the first and second horizontal pulleys 36a, 36b. It is set to be parallel to.

Also, the first and second vertical pulleys 36c,
d is relative to the first and second horizontal pulleys 36a, b,
Each of these vertical pulleys 36 is arranged inside of these.
The outer peripheral edges of c and d are the first and second horizontal pools, respectively.
It is arranged close to the cartridges 36a and 36b .

The auxiliary pulley 36e has first and second vertical pulleys.
Make sure that the pulleys 36c and 36d and the surface of rotation are on the same plane.
The vertical pulley 36b, c , which is set, is located above the middle of the pair of vertical pulleys 36b and 36c (
On the side opposite to the first and second horizontal pulleys 36a, b,
It is provided so as to be separated from these. ) For adjusting the pulling direction of the wire saw 20 described later.

Next, the guide device configured as described above
A method of using 10a will be described with reference to FIG. Figure
12 in 2, Concree about to cut
A preparative precursor, 20 diamond wire saw, 22
That is the driving device.

The drive device 22 is located near the frame 12 and
It is installed diagonally to the side and can be used for electric motors, etc.
It is equipped with a drive pulley 24 driven to rotate more,
Traveling in the direction (specifically, the direction away from the body 12)
It is mounted on a possible stand 26. Guide device 1 of the present invention
0a is installed at a lower cutting point of the skeleton 12. Than
Specifically, the guide device 10a, as shown in FIG.
With the floor 13 slightly dug in, the base plate 34a is placed on the floor surface.
Fixed. At this time, the first and second horizontal pulleys 36
Arranged so that the center of the rotation surface of a and b coincide with the cutting point
To be done. The wire saw 20 is an endless one, and
12 and the drive pulley 24 via the guide device 10a
And is wound as follows.

A driving device 22 installed on the side of the body 12
End of the wire saw 20 starting from the drive pulley 26 of
Passes through the inside of one of the second vertical pulleys 36d,
One of the second horizontal pulleys arranged close to the vertical pulley 36d.
Wind around the body 12 so that it goes around the outer periphery of the re-36b.
A wire saw 2 that is hung and goes around the body 12.
0 from the outer peripheral side of the other first horizontal pulley 36a
The other first vertical puller, which is located close to the horizontal pulley 36a.
2nd vertical direction of auxiliary pulley 36e
The drive pulley 2 is wound around the outer circumference on the side opposite to the pulley 36d.
Return to 4 .

When the wire saw 20 is wound in this way,
One side is the wire saw 20, the first horizontal pulley 36a
In order of the first vertical pulley 36c, and the other side is the second horizontal
From the pulley 36b to the second vertical pulley 36d
And after changing direction from horizontal to vertical,
It is drawn out to the side of the body 12 and wound around the drive pulley 24.
Be kicked. Then, while rotating the drive pulley 24,
By moving the table 26, tension is applied to the wire saw 20.
The cutting operation of the skeleton 12 is performed while adding. Cutting work
At the end, the wire saw 20 has the first and second wire saws.
It prevents the horizontal pulleys 36a, 36b from falling off.
It

The guide device 10a constructed as described above
Then, the wire saw 2 which was turned from horizontal to vertical
0 can be wound around the drive pulley 24 installed on the side of the skeleton 12 as it is, and by using the guide device 10a of this embodiment, the skeleton 12 can be cut to the very limit of the floor surface.

Further , according to the guide device 10a of the present invention,
In addition to the pair of horizontal and vertical pulleys 36a-36d,
The vertical pulleys 36c, d and the rotation surface are set to the same surface.
It has an auxiliary pulley 36e for adjusting the pull-out direction.
Insert one end of the ear saw 20 into one of the vertical pulleys 36d.
The vertical pulley 36d and the other end
Wind it around the outer circumference of the auxiliary pulley 36e located on the opposite side.
Since it is returned to the drive pulley 24 side, drive with the guide device 10a
Increase the distance between the wire saw 20 and the pulley 24.
You can get it. Therefore, the wire saw 20
As the cutting of the body 12 progresses, the drive device 22 is removed from the body 12.
When separated, contact or interference between the wire saws 20
Can be avoided.

[0021]

[Effects of the Invention] As described above in detail in the embodiments,
According to the wire saw guide device of the present invention, the wire saw whose direction is changed from the horizontal direction to the vertical direction can be directly wound around the drive pulley installed on the side of the object to be cut. Also, when you retract the wire saw drive
In addition, avoid contact or interference between wire saws.
Can be.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a guide device according to the present invention.

FIG. 2 is an explanatory diagram of a usage state of the guide device.

[Explanation of symbols]

 10a Guide device 12 Frame 13 Floor 34 Support frame 36 Guide pulley 36a, b Horizontal pulley 36c, d Vertical pulley 36e Auxiliary pulley 20 Wire saw 24 Drive pulley

Claims (1)

(57) [Scope of utility model registration request] 1. A guide device comprising a support frame fixed to a body and a plurality of guide pulleys rotatably supported by the support frame, for changing the direction of a wire saw wound around the body. The guide pulley consists of a pair of horizontal pulleys and a pair of horizontal pulleys.
The plane of rotation is set to the plane orthogonal to the plane of rotation of the horizontal pulley.
A pair of vertical pulleys and a surface that has the same rotation surface as this vertical pulley
And an auxiliary pulley set to the horizontal pulley.
Is placed in the frame to guide the wire saw to the body side.
The vertical pulley has an outer circumference inside the pair of horizontal pulleys.
The end edges are arranged close to each other, and the auxiliary pulley is located approximately at an intermediate position between the pair of vertical pulleys.
Position, place it on the opposite side of the horizontal pulley.
Arranged to adjust the lead-out direction of the wire saw
From the drive pulley of the drive installed on the side of the body
One end of the wire saw is inside one of the vertical pulleys.
Through the side, said horizontal placed close to this vertical pulley
On one side of the pulley so that it goes around
The wai wrapped around the skeleton and wrapped around the skeleton.
From the other outer peripheral side of the horizontal pulley,
Inner side of the other of the vertical pulleys arranged close to the flat pulley
Through the auxiliary pulley and one of the vertical pulleys.
A guide device for a wire saw, which is wound around an outer circumference on the opposite side and returned to the drive pulley .