KR20190114240A - Steel pile head fixing and cutting apparatus - Google Patents

Abstract

According to the present invention, an apparatus for fixing and cutting a steel pile head is fixed on an exposed head of a steel pile fixed in the ground, and comprises: a main body; a first and a second clamp arm having an arc shape, wherein each one end thereof is rotationally connected to both sides of the main body; a first and a second auxiliary clamp arm having an arc shape, wherein middle portions thereof are rotationally connected to middle portions in the first and the second clamp arm; a support unit arranged on the main body, and provided with support protrusions protruding from both sides forwards and coming in contact with the steel pile; and a plasma cutting unit which is arranged on lower portions of the first and the second clamp arm, and performs cutting work on the steel pile. The present invention arranges the auxiliary clamp arms of an arc shape on the middle portions in the clamp arms fixed while enclosing the outer circumference of the steel pile from both sides to be fixed on steel piles of various diameters, and can perform cutting work on steel piles of various diameters by using plasma after being fixed on the steel piles.

Description

STEEL PILE HEAD FIXING AND CUTTING APPARATUS}

The present invention relates to a steel pipe pile head fixing and cutting device, and more particularly, to a steel pipe pile head fixing and cutting device which is fixed to the exposed head of steel pipe piles of various diameters and which can be cut after fixing. .

Steel pile pile construction is a method that secures the bearing capacity of the ground and the structure by injecting the steel pipe pile into the ground through the buried or type construction method and then crushing and arranging the upper part of the pile to a certain height.

Work process of the steel pipe pile as described above can be divided into three types of ground penetration of pile using the buried / type method, securing the head through the connection of the ground and the upper structure. Here, the head to the top of the pile is to cut the top of the pile to meet the level of the foundation in pile foundation construction after the ground penetration of the pile.

In order to achieve file cutting, the file cutting device must be fixed on the file to be cut.

Patent No. 10-1780591 has been disclosed as a technique in which a file is cut after being fixed to an outer circumference of a file that is a cutting target.

The technique described above is configured such that after the clamp arm is fixed to the concrete pile, the cutting part including the wire saw proceeds to the concrete pile and the concrete pile is cut.

Here, in order to cut the concrete pile by a wire saw, the clamp arm is first fixed at both outer peripheries of the concrete pile.

At this time, the clamp arm is made of a predetermined curvature, it can be easily fixed to the concrete pile having a diameter corresponding to the curvature of the clamp arm, but the concrete arm having a diameter that does not correspond to the curvature of the clamp arm Only one side of the inner circumference has contact with the outer circumference of the concrete pile, there is a problem that can not be fixed.

Therefore, there is a problem in that the clamp arm needs to be replaced to cope with various diameters.

The present invention is to solve the above problems, by placing an auxiliary clamp of an arc shape in the inner middle portion of the clamp arm that is wrapped around the outer periphery of the steel pipe pile to be fixed to the steel pipe pile of various diameters without replacing the clamp arm It is an object of the present invention to provide a steel pipe pile head fixing and cutting device.

Another object of the present invention is to provide a steel pipe pile head fixing and cutting device capable of cutting a steel pipe using plasma after being fixed to steel pipe piles of various diameters.

In order to achieve the above object, the present invention is a device fixed to the exposed head of the steel pipe pile fixed in the ground, the main body; First and second clamp arms having one end rotatably connected to both sides of the main body in an arc shape; First and second auxiliary clamp arms having an arc shape and having an intermediate portion rotatably connected to an inner middle portion of the first and second clamp arms; A support part disposed on the main body and having support protrusions contacting the surface of the steel pipe pile to both front sides; And a plasma cutting unit disposed under the first and second clamp arms and performing a cutting operation on the steel pipe pile by a plasma.

One end may further include a moving means connected to the rear of the body.

The means for moving may comprise an excavator.

The first and second auxiliary clamp arms may have the same shape and size as each other.

The first and second auxiliary clamp arms protrude from one end of the first and second auxiliary clamp arms to protrude to the outer circumference of the steel pipe pile, and protrude to the other ends of the first and second auxiliary clamp arms. And include a second fixing protrusion in contact with the outer circumference of the steel pipe pile.

The plasma cutting unit may include first and second cutting arms having a circular arc shape rotatably connected to both sides of the front end of the main body and disposed adjacent to the steel pipe on both outer peripheral sides of the steel pipe, and the first and second cutting arms. A moving rail disposed to be movable along the first and second cutting arms at a lower portion thereof, and a plasma generator disposed on the moving rail and generating plasma by cutting the plasma at the cutting position.

The moving rail has a cross-sectional shape of '工', wherein the first and second cutting arms provide a space to move along the first and second cutting arms of the moving rail, and the space It can communicate with the outside through the open part of the lower part.

The width of the open portion may be narrower than the width of the space.

The inner circumference of the first and second cutting arms may be spaced apart from the outer circumferential surface of the steel pipe.

The first and second cutting arms and the moving rail may have the same curvature.

The present invention as described above, by arranging the secondary clamp of the arc shape in the inner middle portion of the clamp arm that is wrapped around the outer periphery of the steel pipe pile can be fixed to the steel pipe pile of various diameters without replacing the clamp arm.

In addition, the present invention can be fixed to the steel pipe pile of various diameters, it is possible to perform a cutting operation for the steel pipe using a plasma.

1 is a perspective view showing the configuration of a steel pipe pile head fixing and cutting device according to an embodiment of the present invention.
Figure 2 is a bottom perspective view showing the configuration of the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing the configuration of the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.
4 is a cross-sectional view taken along line AA of FIG. 2.
5 is a view showing a work preparation state of the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.
6 is a view showing an example of a fixed state of the steel pipe pile by the first and second auxiliary clamp arms and the support protrusion.
It is a figure which shows the other example of the fixing state of the steel pipe pile by a 1st and 2nd auxiliary clamp arm and a support protrusion.
8 and 9 are views showing a cutting operation by the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing the configuration of a steel pipe pile head fixing and cutting device according to an embodiment of the present invention, Figure 2 is a bottom perspective view showing the configuration of a steel pipe pile head fixing and cutting device according to an embodiment of the present invention. . In addition, Figure 3 is an exploded perspective view showing the configuration of the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.

1 to 3, the steel pipe pile head fixing and cutting device 100 according to an embodiment of the present invention is the main body 110, the first and second clamp arms (120A, 120B), the first and first 2 auxiliary clamp arms 130A, 130B, support 150 and cut 180.

The main body 110 is formed in a hexahedron shape having a predetermined size.

The rear of the main body 110 may be connected to a predetermined moving means 200 for moving the fixing device 100 according to the present invention to a cutting work place. Here, the moving means 200 may include an excavator.

The first and second clamp arms 120A and 120B are formed in an arc shape having a predetermined curvature so that one end is rotatably connected to both sides of the main body 110.

The first and second clamp arms 120A and 120B surround the outer circumference of the steel pipe pile 1 at both sides and are fixed to the steel pipe pile 1.

The first and second clamp arms 120A and 120B have the same shape and size, and the concave portions are disposed to face each other.

The first and second clamp arms 120A and 120B may be formed by bending the frame in an arc shape. In addition, the first and second clamp arms 120A and 120B may include a plurality of arc-shaped frames.

The first and second clamp arms 120A and 120B may rotate in accordance with a change in length of the first and second hydraulic cylinders, which are not shown. In the figure, reference numerals 140A and 140B, which are not described, are rotational shafts connected to one ends of the first and second hydraulic cylinders. The other ends of the first and second hydraulic cylinders may be connected to the main body 110.

When the lengths of the first and second hydraulic cylinders are changed, they are transmitted to the first and second clamp arms 120A and 120B through the rotation shafts 140A and 140B, so that the first and second clamp arms 120A and 120B. Let it rotate.

The first and second auxiliary clamp arms 130A and 130B are formed in an arc shape having a predetermined curvature. In this case, the first and second auxiliary clamp arms 130A and 130B have the same size and shape, and the concave portions are disposed to face each other.

The first and second auxiliary clamp arms 130A and 130B may be formed by bending the frame in an arc shape. In addition, the first and second auxiliary clamp arms 130A and 130B may include a plurality of arc-shaped frames.

The first and second auxiliary clamp arms 130A and 130B are rotatably connected to an inner middle portion of the first and second clamp arms 120A and 120B.

The first and second auxiliary clamp arms 130A and 130B are disposed such that the concave portion faces the outer circumference of the steel pipe pile 1, and is fixed to the steel pipe pile 1 in contact with a part of the outer circumference of the steel pipe pile 1.

One end of each of the first and second auxiliary clamp arms 130A and 130B protrudes from the first fixing protrusions 132A and 132B in contact with the outer circumference of the steel pipe pile 1, and the other end thereof is the outer circumference of the steel pipe pile 1. The second fixing protrusions 134A and 134B are in contact with each other.

The size and shape of the first fixing protrusions 132A and 132B and the second fixing protrusions 134A and 134B are variously set according to a user's needs.

The support part 150 is disposed above the main body 110 in the form of a plate having a predetermined size. In the present embodiment, the support 150 is disposed only on the upper portion of the main body 110, but may be disposed on the upper and lower portions of the main body 110, if necessary.

The front of the support 150 is in contact with the surface of the steel pipe pile (1) and protrudes to a predetermined height to support the steel pipe pile (1).

The cutting unit 180 is disposed under the first and second clamp arms 120A and 120B to perform the cutting operation of the steel pipe pile 1.

The cutting unit 180 includes first and second cutting arms 181 and 182, a moving rail 184, and a plasma generator 186.

The first and second cutting arms 181 and 182 are rotatably connected to both ends of the lower end of the main body 110 by the connecting member 154, and the steel pipe piles 1 on the outer circumferential sides of the steel pipe pile 1 It can be placed in proximity to. Here, the first and second cutting arms 181 and 182 may be formed in an arc shape having the same size and curvature. In addition, the diameters of the first and second cutting arms 181 and 182 may be the same as the diameters of the first and second clamp arms 120A and 120B.

The first and second cutting arms 181 and 182 are rotated in conjunction with the first and second clamp arms 120A and 120B to be disposed to surround the outer circumference of the steel pipe pile 1. In this case, the inner circumferences of the first and second cutting arms 181 and 182 may be spaced apart from the outer circumferential surface of the steel pipe pile 1 by a predetermined distance.

The moving rail 184 is bent to form an arc having a predetermined curvature. The moving rail 184 is disposed to be movable along the first and second cutting arms 181 and 182 at the bottom of the first and second cutting arms 181 and 182. At this time, in order to facilitate the movement of the moving rail 184, the curvature of the moving rail 184 is preferably the same as the curvature of the first and second cutting arms (181, 182). A predetermined motor (not shown) may be disposed to move the moving rail 184.

4 is a cross-sectional view taken along the line A-A of FIG.

Referring to FIG. 4, it can be seen that the interior of the second cutting arm 182 provides a space and the lower portion is open to the center portion. At this time, the inner width of the second cutting arm 182 is formed wider than the width of the open portion. The first cutting arm 181 also has the same configuration as the second cutting arm 182.

The moving rail 184 has a cross-sectional shape of '工', and the upper end portion is disposed in the inner space through the end of the second cutting arm 182, and then moved along the inner space of the second cutting arm 182.

The moving rail 184 moves along the circumference of the steel pipe pile 1 at the lower portions of the first and second cutting arms 181 and 182 to allow the steel pipe cutting operation by the plasma generator 186 to be described later.

The plasma generator 186 is disposed at least one number below the moving rail 184. The plasma generator 186 is disposed toward the steel pipe pile 1 at the bottom of the moving rail 184.

In the plasma generator 186, a predetermined plasma is generated to cut the steel pipe pile 1. When the plasma is generated in the plasma generator 186, the moving rail 184 may move at a constant speed along the lower portions of the first and second cutting arms 181 and 182.

The operation of the steel pipe pile head fixing and cutting device according to the present invention configured as described above will be described.

5 is a view showing a work preparation state of the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.

First, the user displays the cutting position at a predetermined position of the steel pipe pile 1. Here, various methods may be used for displaying the cutting position according to the needs of the user.

Then, the user connects the main body 110 to the distal end of the moving means 200, and moves to the place where the steel pipe pile 1 to be fixed is located.

The user is made to fix the steel pipe pile head fixing and cutting device according to the present invention so that the cutting to the cutting position indicated in the steel pipe file (1) can be made.

Steel pipe pile head fixing and cutting device according to the invention can be fixed as follows.

6 is a view showing an example of a fixed state of the steel pipe pile by the first and second auxiliary clamp arms and the support protrusion.

Referring to FIG. 6, the first and second fixing protrusions 132A, 132B, 134A, and 134B protruding from the support 150 and the first and second auxiliary clamp arms 130A and 130B are formed in the steel pipe pile 1. It can be seen that it is in contact with the outer circumference and fixed to the steel pipe pile (1).

First, the user manipulates the first and second hydraulic cylinders so that the first and second clamp arms 120A and 120B are spaced apart from each other by a predetermined distance, so that the first and second clamp arms 120A and 120B are interposed therebetween. The steel pipe pile 1 is positioned. At this time, one side toward the main body 110 of the outer circumference of the steel pipe pile (1) to be in contact with the front of the support 150.

Thereafter, the user manipulates the first and second hydraulic cylinders such that the first and second clamp arms 120A and 120B surround the steel pipe piles 1 on both sides of the steel pipe pile 1.

Here, when the first and second clamp arms 120A and 120B are close to the steel pipe pile 1, the first and second auxiliary clamp arms 130A and 130B rotate at a predetermined angle and the first and second fixing protrusions are rotated at a predetermined angle. 132A, 132B, 134A, and 134B abut on the outer circumference of the steel pipe pile 1.

It is a figure which shows the other example of the fixing state of the steel pipe pile by a 1st and 2nd auxiliary clamp arm and a support protrusion.

Referring to FIG. 7, it can be seen that the steel pipe pile head fixing and cutting device 100 according to the present invention is fixed to the steel pipe pile 1 having a larger diameter than the steel pipe pile shown in FIG. 5.

As shown in FIG. 7, the fixing may be performed in the same manner as the example shown in FIG. 5 even when the steel pipe pile 1 is larger in diameter.

That is, the first and second clamp arms 120A and 120B are brought close to the steel pipe pile 1 so that one side of the steel pipe pile 1 is in contact with the support 150, and then the first and second auxiliary clamp arms The first and second fixing protrusions 132A, 132B, 134A, and 134B of 130A and 130B contact the outer circumference of the steel pipe pile 1, and the first and second auxiliary clamp arms 130A and 130B are disposed at a predetermined angle. When rotated, it can be seen that the first and second fixing protrusions 132A, 132B, 134A, and 134B and the support part 150 are fixed to the steel pipe pile 1 in contact with six points on the outer circumference of the steel pipe pile 1.

When the first and second clamp arms 141A and 142A are disposed to surround the steel pipe pile 1, the plasma generator 186 disposed on the first and second cutting arms 181 and 182 may also be the steel pipe pile 1. ) Toward the cutting position.

Thereafter, the user may operate the moving rail 134 and the plasma generator 186 to perform the cutting operation of the steel pipe pile 1.

The cutting operation of the steel pipe pile 1 can be performed as follows.

8 and 9 are views showing a cutting operation by the steel pipe pile head fixing and cutting device according to an embodiment of the present invention.

Referring to FIG. 8, it can be seen that the cutting operation is started on the surface of the steel pipe pile 1 by the plasma generated by the plasma generator 186.

Referring to FIG. 9, the cutting operation is performed by the plasma generator 186 and the moving rail 134 continuously moves along the lower portions of the first and second cutting arms 181 and 132, and thus the steel pipe pile ( It can be seen that the cutting operation by the plasma was performed along the circumference of 1).

According to the present invention, an arc-shaped auxiliary clamp is disposed at an inner middle portion of a clamp arm which is wrapped around the outer circumference of a steel pipe pile and fixed to steel pipe piles of various diameters without replacing the clamp arm, and steel pipe piles having various diameters After being fixed in, the cutting operation for the steel pipe may be performed using plasma.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: steel pipe pile head fixing and cutting device
110: main body
120A, 120B: first and second clamp arms
130A, 130B: first and second auxiliary clamp arms
150: support
180: cutout

Claims (10)

Device fixed to exposed head of steel pipe pile fixed underground
main body;
First and second clamp arms having one end rotatably connected to both sides of the main body in an arc shape;
First and second auxiliary clamp arms having an arc shape and having an intermediate portion rotatably connected to an inner middle portion of the first and second clamp arms;
A support part disposed on the main body and having support protrusions contacting the surface of the steel pipe pile to both front sides; And
And a plasma cutting unit disposed under the first and second clamp arms and configured to cut the steel pipe pile by plasma. The method of claim 1,
Steel pipe pile head fixing and cutting device further comprises a moving means, one end of which is connected to the rear of the main body. The method of claim 2,
The moving means is a steel pipe pile head fixing and cutting device comprising an excavator. The method of claim 1,
The first and second auxiliary clamp arms are steel pipe pile head fixing and cutting device having the same shape and size. The method of claim 4, wherein
The first and second auxiliary clamp arms,
A first fixing protrusion protruding to one end of the first and second auxiliary clamp arms and in contact with an outer circumference of the steel pipe pile;
Steel pipe pile head fixing and cutting device comprising a second fixing protrusion protruding to the other end of the first and second auxiliary clamp arm in contact with the outer circumference of the steel pipe pile. The method of claim 1,
The plasma cutting unit,
First and second cutting arms that are rotatably connected to both sides of the front end of the main body and are formed in an arc shape disposed in proximity to the steel pipe on both outer circumferential sides of the steel pipe;
A moving rail disposed movably along the first and second cutting arms below the first and second cutting arms;
And a plasma generator disposed on the moving rail and generating a plasma to the cutting position to cut the steel pipe pile head. The method of claim 6,
The moving rail,
Made in the form of a cross section of '工',
The first and second cutting arms,
And a space for moving along the first and second cutting arms of the moving rail, the space communicating with the outside through an open portion of the lower portion. The method of claim 7, wherein
Steel pipe pile head fixing and cutting device having a width of the open portion is narrower than the width of the space. The method of claim 6,
An inner circumference of the first and second cutting arms is a steel pipe pile head fixing and cutting device spaced apart from the outer circumferential surface of the steel pipe. The method of claim 6,
And the first and second cutting arms and the moving rail are formed with the same curvature.

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