KR20190097842A - Concrete pile head cutting apparatus - Google Patents

Abstract

The present invention relates to a device for cutting the head of a concrete pile. Provided is a concrete pile head cutting apparatus, comprising: a cutting unit main body of a plate shape, which has a tip of a groove shape surrounding the outer circumference of a concrete pile; a fixating frame protruding frontwards from both side ends of the cutting unit main body, before being fixated at a side surface of the concrete pile; first and second hydraulic cylinders arranged in parallel at both sides of an upper portion of the cutting unit main body; first and second operating frames of a cuboid shape, each of which is arranged at a tip portion of the first and second hydraulic cylinders, and which have a roller provided at both end portions of an upper portion, and are moved along a side end of the cutting unit main body; and a wire saw arranged after being wound around the roller, and performing a cutting process with respect to the concrete pile. Therefore, during the cutting process of the head of the concrete pile exposed to an upper portion of the ground surface, work time is shortened, workforce is reduced, and efficiency and work productivity in the cutting process can be enhanced. Furthermore, the quality of the horizontality of a cut surface can be guaranteed during the cutting process of the head of the concrete pile. Not only that, a safety accident can be prevented during the cutting process of the head of the concrete pile.

Description

Concrete pile tofu cutting device {CONCRETE PILE HEAD CUTTING APPARATUS}

The present invention relates to a concrete pile head cutting device, and more particularly to a concrete pile head cutting device capable of cutting the exposed head of the concrete pile.

Concrete pile construction is a method of securing the bearing capacity of the ground and the structure by injecting the concrete pile manufactured by centrifugal force into the ground through embedded or type construction method, and then crushing and arranging the head of the pile to a certain height.

Work process of the concrete 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 upper structure. Here, the head to the top of the concrete pile to cut the top of the concrete pile to meet the level of the foundation in the pile foundation construction after the ground penetration of the concrete pile.

When cutting the upper portion of the concrete pile as described above using a crusher mounted on the construction equipment (excavator, etc.), or the worker is cut directly by a cutter.

However, the conventional cutting method as described above has a problem in that the cutting surface is not smooth when cutting using a crusher mounted on construction equipment (excavator, etc.), and safety accidents (cuts, etc.) when a worker cuts directly with a cutter. There are problems such as the occurrence of safety accidents such as labor loss and electric shock due to the rise of the groundwater of the concrete pile foundation surface, poor horizontal state of the cut surface according to the skill of the laborer.

In order to solve the above problems, Patent No. 10-1780591 has been disclosed.

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.

Referring to the above-mentioned prior art, it can be seen that the space occupied by the cutting portion used for cutting the concrete pile by the wire saw is larger than the space occupied by the clamp arm fixed to the concrete pile. In addition, in order to cut the concrete pile, the motion frame in which the wire saw is disposed must move from one side of the concrete pile to the other side of the concrete pile. At this time, in the situation where the moving space of the operation frame is secured, the cutting work of the concrete pile may be performed, but there is a problem in that the cutting operation cannot be performed because the space cannot be secured depending on the work site where the cutting of the concrete pile is performed.

An object of the present invention is to provide a concrete pile head cutting device for performing a cutting operation of the head of the concrete pile exposed to the upper portion of the ground without separately setting a space for moving the wire saw. It is done.

It is also an object of the present invention to provide a concrete pile head cutting device that takes up less space than a clamp arm fixed to the head of the concrete pile.

According to a first aspect of the present invention for achieving the above object, an apparatus for cutting the exposed head of the concrete pile fixed in the ground, comprising: a main body; First and second cutting arms having one end rotatably connected to both sides of the main body in an arc shape; A plurality of rotating rollers disposed above the main body and the first and second cutting arms; A moving roller which is disposed to be movable back and forth of the main body from the upper part of the main body; And a wire saw disposed around the outer circumference of the rotating roller and the moving roller, the wire saw moving in one direction by the rotation of the rotating roller and cutting the concrete pile. It includes, The moving roller provides a concrete pile head cutting device that moves forward from the rear of the main body in accordance with the progress of the cutting by the wire saw.

The apparatus may further include first and second hydraulic cylinders disposed for the operation of the first and second cutting arms.

The rotating roller may include a plurality of first unit rotating rollers disposed along the rear of the main body, a pair of second unit rotating rollers respectively disposed at a connection portion between the main body and the cutting arm, and an intermediate portion of the cutting arm. It may include a plurality of third unit rotation rollers disposed in the portion and the end.

A roller movement hole may be formed between the first unit rotating rollers on the main body and toward the front of the main body, and the movement roller may be disposed on the roller movement hole.

It may further comprise a moving means for moving the moving roller.

The wire saw, through the outer periphery of the first unit rotating roller facing toward the rear of the main body, to the parts of the second unit rotating roller facing each other, and then the third unit rotating roller facing in the outward direction of the cutting arm Can move outwards.

The wire saw may move to the first unit rotating roller through the outer circumference of the moving roller facing toward the front of the main body.

According to a second aspect of the present invention for achieving the above object, an apparatus for cutting the exposed head of the concrete pile fixed in the ground, comprising: a clamp portion for clamping (clamping) the outer periphery of the concrete pile; And a cutting part disposed under the clamp part to cut the concrete pile. It includes, The cut portion, Cut portion main body; First and second cutting arms having an arc shape, one end of which is rotatably connected to both sides of the cutting body; A plurality of rotary rollers disposed above the cutout body and the first and second cut arms; A moving roller disposed below the cut part main body so as to be movable forward and backward of the main body; And a wire saw disposed around the outer circumference of the rotating roller and the moving roller, the wire saw moving in one direction by the rotation of the rotating roller and cutting the concrete pile. It includes, The moving roller provides a concrete pile head cutting device that moves forward from the rear of the cut portion main body in accordance with the progress of the cutting by the wire saw.

The clamp unit may include a clamp main body, first and second clamp arms having one end rotatably connected to both front sides of the clamp body, and having circular arc shapes surrounding the outer circumference of the concrete pile on both sides, and one end of the first and second clamp arms. 2 may be connected to the rear of the clamp arm, and the other end may include first and second hydraulic cylinders connected to one side of the clamp body to operate the first and second clamp arms.

One end of the first and second hydraulic cylinders may be connected to the rear of the first and second cutting arms.

The first and second cutting arms may be interlocked with the first and second clamp arms.

The rotating roller may include a plurality of first unit rotating rollers disposed along the rear of the main body, a pair of second unit rotating rollers respectively disposed at a connection portion between the main body and the cutting arm, and an intermediate portion of the cutting arm. The apparatus may further include a moving part including a plurality of third unit rotating rollers disposed at the part and the end.

A roller movement hole may be formed between the first unit rotating rollers on the main body and toward the front from the rear of the main body, and the movement roller may be disposed on the roller movement hole.

It may further comprise a moving means for moving the moving roller.

The wire saw, through the outer periphery of the first unit rotating roller facing toward the rear of the main body, to the parts of the second unit rotating roller facing each other, and then the third unit rotating roller facing in the outward direction of the cutting arm Can move outwards.

The wire saw may move to the first unit rotating roller through the outer circumference of the moving roller facing toward the front of the main body.

The present invention as described above, it is possible to perform the cutting operation of the head of the concrete pile exposed to the upper portion of the ground without separately setting the space for the wire saw movement.

In addition, the present invention may occupy less space than the clamp arm fixed to the head of the concrete pile.

1 is a plan view showing the configuration of a concrete pile head cutting device according to a first aspect of the present invention.
2 to 5 is a view showing the operation of the concrete pile head cutting device shown in FIG.
6 is a perspective view showing the configuration of a concrete pile head cutting device according to a second aspect of the present invention.
Fig. 7 is a bottom view showing the structure of a cut portion used in the concrete pile head cutting device according to the second aspect 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 concrete pile head cutting device according to a first aspect of the present invention.

1, the concrete pile head cutting device 100 according to an embodiment of the present invention is the main body 110, the first and second cutting arms (120A, 120B), the rotary roller 130, a wire saw ( 150, a moving roller 140.

The main body 110 has a predetermined size and shape.

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

The first and second cutting arms 120A and 120B are formed in an arc shape having a predetermined curvature.

One end of the first and second cutting arms 120A and 120B is rotatably connected to both front sides of the main body 110. The first and second cutting arms 120A and 120B on both sides of the main body 110 may be interlocked with each other and may be positioned at both outer circumferential sides of the concrete pile 1 that is a cutting target.

Hydraulic cylinders 122 may be connected to the first and second cutting arms 120A and 120B to operate the first and second cutting arms 120A and 120B.

A plurality of rotating rollers 130 are disposed on the upper portion of the main body 110 and the upper portions of the first and second cutting arms 120A and 120B. Plural numbers may be disposed below the first and second cutting arms 120A and 120B. The plurality of rotating rollers 130 rotate in the same direction.

The wire saw 150, which will be described later, is in contact with the outer circumference of the rotating roller 130 to move. In order to operate the rotary roller 130, a driving motor (not shown) may be connected to any one or more numbers of the rotary rollers 130 among the plurality of rotary rollers 130.

The wire saw 150 moves in one direction according to the rotation of the rotary roller 130, and may perform a cutting operation on the concrete pile 1. Since the wire saw 150 is a well known technique, a detailed description thereof will be omitted.

Here, in order to facilitate the movement of the wire saw 150, the rotary roller 130 may include first, second and third unit rotary rollers 130A, 130B, 130C.

The first unit rotating roller 130A is disposed at a predetermined interval along the rear of the main body 110. In the present embodiment, three first unit rotating rollers 130A may be disposed.

The second unit rotation roller 130B is disposed at the connection portion between the main body 110 and the first and second cutting arms 120A and 120B, respectively.

The third unit rotating roller 130C is disposed at regular intervals from the middle portion to the end portion of the first and second cutting arms 120A and 120B.

Here, the wire saw 150 moves along the outer circumference of the first, second and third unit rotating rollers 130A, 130B and 130C. Here, the wire saw 150 moves on the circumference toward the outside of the main body 110 and the first and second cutting arms 120A, 120B in the first unit rotation roller 130A and the third unit rotation roller 130C. Then, in the second unit rotation roller 130B, the second unit rotation roller 130B moves along the outer circumference facing each other.

Here, the wire saw 150 is loosely maintained while the inner circumferences of the first and second cutting arms 120A and 120B are in contact with the outer circumference of the concrete pile 1 to be cut, and are spaced apart from the concrete pile 1. Can be kept taut.

The moving roller 140 is disposed between the first unit rotating rollers 130A, and is disposed to be movable forward from the rear of the main body 110.

The moving roller 140 moves forward from the rear of the main body 110 as the cutting operation by the wire saw 150 progresses, and the wire saw 150 contacts the surface of the concrete pile 1 with a uniform contact pressure. Do it.

To this end, the wire saw 150 is in contact with the front surface of the main body 110 of the outer circumference of the moving roller 140.

Meanwhile, in order to more easily move the moving roller 140 on the main body 110, the main body 110 has a predetermined width and length between the main unit 110 and the first unit rotating roller 130A. The roller movement hole 112 is formed from the rear of the front to the front. The moving roller 140 may be disposed to be movable on the roller moving hole 112.

In order to move the moving roller 140, a predetermined moving means (not shown) connected to one end of the lower portion of the moving roller 140 may be disposed inside the main body 110. The moving means of the moving roller 140 may include a hydraulic cylinder.

The operation of the concrete pile head cutting device according to the first aspect of the present invention configured as described above will be described.

The user moves the concrete pile head cutting device 100 according to the first aspect of the present invention to the concrete pile (1) to be cut.

Here, a predetermined moving means (including an excavator) may be connected to the rear of the main body 110 of the concrete pile head cutting device 100, but the illustration of the moving means will be omitted to avoid the complexity of the drawings. do.

2 to 5 is a view showing the operation of the concrete pile head cutting device shown in FIG.

Referring to FIG. 2, the concrete pile head cutting device 100 is continuously moved so that the wire saw 150 moving along the rotating roller 130 is in contact with the front surface of the concrete pile 1. In this case, the portion where the wire saw 150 is in contact may be displayed using a separate display means. Here, the display means may use the display means disclosed in Patent No. 10-1780591.

Thereafter, the user operates the hydraulic cylinder 112 connected to the first and second cutting arms 120A and 120B so that the first and second cutting arms 120A and 120B are in contact with the outer circumferential sides of the concrete pile 1. Do it.

Here, the elasticity of the wire saw 150 is reduced when the gap between the first and second cutting arms 120A and 120B is reduced to contact the outer circumferential sides of the concrete pile 1, but the first and second cutting arms 120A are reduced. In response to the reduction in the spacing of 120B, the main body 110 is advanced to the concrete pile 1 so that the contact between the outer circumferential surface of the concrete pile 1 and the wire saw 150 may be maintained uniformly. Can be.

Then, the user performs the cutting operation of the concrete pile (1).

When the user rotates the rotary roller 130 by operating the motor, the wire saw 150 is moved in one direction by the rotation of the rotary roller 130, and the cutting of the concrete pile 1 starts.

As the cutting of the concrete pile 1 proceeds, the contact pressure between the concrete pile 1 and the wire saw 150 is lowered and the cutting speed is reduced.

The user extends the length of the hydraulic cylinder connected to the moving roller 140 so that the moving roller 140 moves forward along the roller moving hole 112 in front of the main body 110.

4 is a view showing the concrete pile cutting by the concrete pile head cutting device shown in FIG.

As shown in FIG. 4, when the moving roller 140 disposed between the first unit rotating rollers 130A advances toward the main body 110, the wire saw 150 moves along the first unit rotating rollers 130A. ) Elasticity is maintained and the contact between the wire saw 150 and the concrete pile 1 is made uniform and cutting can be made.

When the moving roller 140 moves to the front of the main body 110 in response to the cutting operation of the concrete pile 1 by the wire saw 150, as shown in FIG. 5, the wire saw 150 may be a concrete pile ( By cutting 1) and passing through the concrete pile 1, the cutting operation of the concrete pile 1 can be completed.

As described above, in the concrete pile head cutting device according to the present invention, since the wire saw penetrates the concrete pile 1 during the cutting operation of the concrete pile 1, the space for the arrangement of the cutting apparatus is used less.

Figure 6 is a perspective view showing the configuration of the concrete pile head cutting device according to the second aspect of the present invention, Figure 7 is a bottom view showing the configuration of the cutting portion used in the concrete pile head cutting device according to the second aspect of the present invention. .

6 and 7, the concrete pile head cutting device 200 according to the second aspect of the present invention includes a clamp unit 210 and a cutting unit 220.

The clamp portion 210 includes a clamp body 212, first and second clamp arms 214A and 214B, and first and second hydraulic cylinders 216A and 214B.

The clamp body 212 may be disposed at an arm tip of an excavator (not shown) which is a moving means for moving the concrete pile head cutting device 200 according to the second aspect of the present invention to a predetermined working position. The lower portion of the clamp body 212 may be disposed below the cutting unit body 222.

In addition, the clamp body 212 may be fixed to a predetermined position of the concrete pile by using the first and second clamp arms 214A and 214B described later.

The first and second clamp arms 214A and 214B are in contact with the outside of both sides of the concrete pile 1, which is the concave cutting object, so that the cutting device 100 does not shake during the cutting operation, and is cut after the cutting operation. The file is fixed to facilitate the transfer operation.

The first and second clamp arms 214A and 214B have an arc shape having a predetermined size, and one end of the first and second clamp arms 214A and 214B is rotatably connected to both front sides of the cutout main body 210. Here, the first and second clamp arms 214A, 214B are arranged such that the recessed portions face each other. The first and second clamp arms 214A and 214B may be formed by bending the frame in an arc shape. In addition, the first and second clamp arms 214A and 214B may include a plurality of arc-shaped frames.

One end of the first and second hydraulic cylinders 216A, 214B is connected to one side of the clamp body 212, and the other end thereof is connected to the outer circumferential side of each of the first and second clamp arms 214A, 214B. The first and second hydraulic cylinders 216A, 214B operate by externally supplied hydraulic pressure such that the first and second clamp arms 214A, 214B abut the outer circumference of the concrete pile 11, or the concrete pile 11 ) To the outer periphery.

The cutting part 220 is connected to the lower part of the clamp part 210. After the clamp unit 210 is fixed at a predetermined position of the concrete pile 1, the cutting unit 220 performs the cutting operation of the concrete pile 1.

The cut portion 220 includes a cut portion body 222, first and second cut arms 224A and 224B, a plurality of rotating rollers 223, a moving roller 226, and a wire saw 250. .

Parts that are the same as the configuration of the previous embodiment will be omitted, and only differences will be described.

One end of the first and second hydraulic cylinders 216A, 214B is connected to the first and second cutting arms 224A, 224B to interlock with the first and second clamp arms 214A, 214B.

The operation of the present invention configured as described above will be described.

The user connects the cutout main body 210 of the cutting device 200 which performs the cutting operation to the arm end of the excavator which is the moving means.

Thereafter, the user drives the excavator to move the cutting device 200 to the vicinity of the concrete pile to be cut work, so as to be coupled to the outer periphery of the concrete pile.

When the user causes the lengths of the formulation 1 and the second hydraulic cylinders 216A, 214B to be extended, the first and second clamp arms 214A, 214B are in close proximity to each other, and thus, the predetermined of the outer circumferential surface of the concrete pile 1. Coupled to the position.

Here, it is preferable that the engagement position of the 1st and 2nd clamp arms 214A and 214B is a position somewhat higher than the cutting operation plan position.

Then, the user operates the rotating roller to move the wire saw 250 in one direction to perform the cutting work of the concrete pile.

Operation of the cutting unit 220 is the same as the previous embodiment, so a detailed description thereof will be omitted.

The present invention can perform the cutting operation of the head of the concrete pile exposed to the top of the ground without setting a space for the wire saw movement, and occupy less space than the clamp arm fixed to the head of the concrete pile have.

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: concrete pile tofu cutting device
110: cutting part main body 112: fixed frame
120A, 120B: first and second hydraulic cylinders
130A, 130B: first and second operating frames 140: wire saw
200: moving part
220A, 220B: first and second clamp arms
230A, 230B: first and second clamp arm operating portions

Claims (16)

A device for cutting exposed head of concrete pile fixed in the ground,
main body;
First and second cutting arms having one end rotatably connected to both sides of the main body in an arc shape;
A plurality of rotating rollers disposed above the main body and the first and second cutting arms;
A moving roller which is arranged to move forward and backward of the main body from the upper part of the main body; And
A wire saw wound around the rotary roller and the moving roller, the wire saw moving in one direction by the rotation of the rotary roller to cut the concrete pile;
Including,
The moving roller is a concrete pile head cutting device that moves forward from the rear of the main body in accordance with the progress of the cutting by the wire saw. The method of claim 1,
Concrete pile head cutting device further comprises a first and a second hydraulic cylinder disposed for the operation of the first and second cutting arms. The method of claim 1,
The rotary roller,
A plurality of first unit rotating rollers disposed along the rear of the main body;
A pair of second unit rotating rollers respectively disposed at a connection portion between the main body and the cutting arm;
Concrete pile head cutting device including a plurality of third unit rotation rollers disposed in the middle and the end of the cutting arm. The method of claim 3,
Between the first unit rotation roller on the main body there is formed a roller moving hole from the rear of the main body to the front,
The moving roller is a concrete pile head cutting device disposed on the roller moving hole. The method of claim 4, wherein
Concrete pile head cutting device further comprises a moving means for moving the moving roller. The method of claim 5,
The wire shoots,
Through the outer periphery of the first unit rotating roller facing the rear of the main body, the second unit rotating roller toward the opposite parts of each other, and then moved to the outer periphery of the third unit rotating roller toward the outer direction of the cutting arm Concrete file tofu cutting device. The method of claim 6,
The wire shoots,
Concrete pile head cutting device for moving to the first unit rotation roller through the outer periphery of the moving roller toward the front of the main body. A device for cutting exposed head of concrete pile fixed in the ground,
A clamp part fixed by clamping an outer circumference of the concrete pile; And
A cutting part disposed under the clamp part to cut the concrete pile;
Including,
The cut portion,
Cut-out body;
First and second cutting arms having an arc shape, one end of which is rotatably connected to both sides of the cutting body;
A plurality of rotary rollers disposed above the cutout body and the first and second cut arms;
A moving roller disposed below the cut part main body so as to be movable forward and backward of the main body; And
A wire saw wound around the rotary roller and the moving roller, the wire saw moving in one direction by the rotation of the rotary roller to cut the concrete pile;
Including,
The moving roller is a concrete pile head cutting device that moves forward from the rear of the cut portion main body in accordance with the progress of the cutting by the wire saw. The method of claim 8,
The clamp unit,
With the clamp body,
First and second clamp arms having one end rotatably connected to both front sides of the clamp body and having an arc shape surrounding the outer circumference of the concrete pile on both sides;
One end thereof is connected to the rear of the first and second clamp arms, and the other end thereof is connected to one side of the clamp body to include a concrete pile head including first and second hydraulic cylinders for operating the first and second clamp arms. Cutting device. The method of claim 9,
One end of the first and second hydraulic cylinder is concrete pile head cutting device connected to the rear of the first and second cutting arm. The method of claim 10,
The first and second cutting arms are concrete pile head cutting device interlocked with the first and second clamp arms. The method of claim 8,
The rotary roller,
A plurality of first unit rotating rollers disposed along the rear of the main body;
A pair of second unit rotating rollers respectively disposed at a connection portion between the main body and the cutting arm;
Concrete pile head cutting device further comprises a moving part including a plurality of third unit rotation rollers disposed in the middle portion and the end of the cutting arm. The method of claim 12,
Between the first unit rotation roller on the main body there is formed a roller moving hole from the rear of the main body to the front,
The moving roller is a concrete pile head cutting device disposed on the roller moving hole. The method of claim 13,
Concrete pile head cutting device further comprises a moving means for moving the moving roller. The method of claim 14,
The wire shoots,
Through the outer periphery of the first unit rotating roller facing the rear of the main body, the second unit rotating roller toward the opposite parts of each other, and then moved to the outer periphery of the third unit rotating roller toward the outer direction of the cutting arm Concrete file tofu cutting device. The method of claim 15,
The wire shoots,
Concrete pile head cutting device for moving to the first unit rotation roller through the outer periphery of the moving roller toward the front of the main body.

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