KR101546415B1 - The steel pipe pile cutting device for a constructing foundation work - Google Patents

Abstract

The present invention relates to an apparatus for cutting a steel pipe file for a basic work, and it is an object of the present invention to provide an apparatus for cutting a steel pipe file, It is developed to be able to be made by manpower;
A guide formed in a circular shape so as to have a diameter larger than the outer diameter of the steel pipe, a hinge provided at the center of the guide so as to be folded or folded in half, and a plurality of radial holes A bushing for allowing the guide to be firmly mounted on the steel pipe file; a cushion for securing the guide firmly to the steel tube pile after it is installed to surround the steel pipe file; two or more rollers moving along the guide; And a cutting device for cutting a steel pipe file equipped with a guide motor and equipped with a drive motor, the apparatus comprising:
Wherein the guide has a semicircular shape having an extension angle (?) That is at least 10 degrees longer than 180 degrees, and upper and lower rails having a circular cross section by a first connection bracket are vertically connected and fixed at both ends, 1) a fixing bracket to which a guide fixing bolt mounted in the center of the file is coupled;
The upper rail and the lower rail having a circular cross-section are vertically connected and fixed by the second connection bracket at both ends and the intermediate connection bracket in the middle at a distance of 180 ° to 10 °, And a guide fixing bolt mounted on the fixing guide, wherein the fixing guide is composed of an opening / closing guide which is hinged to one end and is coupled to the other end by a catch;
Wherein the cutting device comprises a main bracket formed in a vertically installed plate shape and having upper and lower ends bent horizontally in a file direction; Two lower roller mounting brackets rotatably mounted in holes bored vertically through the bent lower portion of the main bracket and the other of which is bent vertically upward to mount a horizontal lower roller; An ascending / descending bracket extending horizontally; Two upper roller mounting brackets rotatably mounted on holes vertically passing through the ascending / descending bracket and the other side bent upwardly and mounted on a horizontal upper roller; A drive motor for rotating any one of the upper rollers; A pair of guide bolts mounted on a hole penetrating vertically through the bent upper portion of the main bracket and inserted into a compression coil spring and fixed to a bottom end of the upward and downward bracket so that compressive force acts on the compression coil spring; ; A main lifting bracket fixed to the lifting bracket via a vertical pipe at an upper end of the main bracket; a clamping rib extending upward from an upper end of the main bracket so that one end thereof is rotatably connected; A fixed link including a handle link formed with a handle and a connecting link rotatably connected at both ends to a position spaced apart from an upper end of the ascending / descending axis and a clamp mounting rib of the handle link; A rotation bracket rotatably connected to one end of the main bracket by a fixing bolt, one end fixed to the main bracket, the other end of the rotation bolt fixed to the rotation bracket after being wound several times, A positioning guide which is fixed to the rotary bracket at one end and which is bent in a curved shape in the opposite direction after the other end is extended in the file direction and the head is in close contact with the lower roller mounting bracket, And a cutting nozzle which is composed of a stopper bolt fixed to the rotating bracket by two nuts and is mounted on an end of the rotating bracket.

Description

Technical Field [0001] The present invention relates to a steel pipe pile cutting device,

The present invention relates to an apparatus for cutting a steel pipe file for a basic work, and more particularly, to an apparatus for cutting a steel pipe file on a ground to reinforce the ground in various construction works and cutting the upper end of a file protruding from the ground to a predetermined height And more particularly, to a steel pipe cutting apparatus for a basic work which is developed in order to make it possible to achieve a more easily and minimized workforce.

When constructing various structures such as buildings, bridges and dams on the ground, it is necessary to construct a work to transfer the vertical load due to the structure's own weight and the horizontal load due to earthquake and wind to the ground. do.

In particular, in the case of soft grounds such as reclaimed landfills and sub-basins that are under water flow and limestone areas where safety concerns are serious, foundation work must be carried out to fix steel pipes or concrete piles in the ground. It can be said that the depth and spacing of such a file greatly influences the stability of the structure.

FIG. 17 is a sectional view of a foundation in which a general foundation work file is installed. Since the state of the indicator is uneven after the operation of putting the file 1 in place, the height of the file 1 becomes uneven, It is not easy to cut solid steel pipes or concrete files.

For this purpose, a device has been developed to cut and rotate the file around the file (1) while being fixed at a certain height. However, it is difficult to install one worker with relatively heavy equipment. The cutting nozzle and the steel pipe for cutting the steel pipe file are effectively cut It is necessary to maintain the optimum distance continuously. However, since the distance can not be maintained as the cutting operation progresses, there is a problem that the efficiency decreases.

(Patent Document 1) Korean Patent Registration No. 10-0357897-0000 (October 09, 2002) (Patent Document 2) Korean Patent Registration No. 10-0711708-0000 (April 19, 2007) (Patent Document 3) Korean Patent Registration No. 10-0760869-0000 (September 17, 2007) (Patent Document 4) Korean Patent Registration No. 10-0813595-0000 (Mar. 07, 2008) (Patent Document 5) Korean Patent Registration No. 10-0941571-0000 (Feb. 02, 2010)

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the above problems, and it is an object of the present invention to provide a basic pipe-use steel pipe filing apparatus which can easily perform a work for installing a guide for wrapping a steel pipe to cut a steel pipe file, And to develop a cutting apparatus.

It is another object of the present invention to develop a steel pipe file cutting apparatus for a basic work which can be easily and firmly attached to and detached from a guide.

It is another object of the present invention to develop a cutting apparatus for a steel pipe for a foundation hole, which enables a cutting operation to proceed while maintaining a cutting position where a cutting nozzle can obtain an optimum cutting effect.

According to an aspect of the present invention, there is provided an apparatus for manufacturing a steel pipe, comprising: a guide formed in a circular shape having a diameter larger than an outer diameter of a steel pipe and divided into two by a half; a hinge provided at a center of the guide, A bushing provided radially inside the guide to firmly mount the guide to the steel pipe file, a cushion to securely fix the guide to the steel pipe and then to securely hold the steel pipe, And a cutting device for cutting a steel pipe file equipped with a guide, the cutter having a drive motor for rotating at least one of the rollers and the rollers, the apparatus comprising:

Wherein the guide has a semicircular shape having an extension angle (?) Of at least 10 degrees greater than 180 degrees, and upper and lower rails having a circular cross section by a first connection bracket are vertically connected and fixed at both ends, 1) a fixing bracket to which a guide fixing bolt mounted in the center of the file is coupled;

The upper rail and the lower rail having a circular cross section are vertically connected and fixed by the second connection brackets at both ends and in the middle at an angle of less than 10 degrees at 180 °, And a guide fixing bolt mounted on the fixing guide, wherein the fixing guide is composed of an opening / closing guide which is hinged to one end and is coupled to the other end by a catch;

Wherein the cutting device comprises a main bracket formed in a vertically installed plate shape and having upper and lower ends bent horizontally in a file direction; Two lower roller mounting brackets rotatably mounted in holes bored vertically through the bent lower portion of the main bracket and the other of which is bent vertically upward to mount a horizontal lower roller; An ascending / descending bracket extending horizontally; Two upper roller mounting brackets rotatably mounted on holes vertically passing through the ascending / descending bracket and the other side bent upwardly and mounted on a horizontal upper roller; A drive motor for rotating any one of the upper rollers; A pair of guide bolts mounted on a hole penetrating vertically through the bent upper portion of the main bracket and inserted into a compression coil spring and fixed to a bottom end of the upward and downward bracket so that compressive force acts on the compression coil spring; ; A main lifting bracket fixed to the lifting bracket via a vertical pipe at an upper end of the main bracket; a clamping rib extending upward from an upper end of the main bracket so that one end thereof is rotatably connected; A fixed link including a handle link formed with a handle and a connecting link rotatably connected at both ends to a position spaced apart from an upper end of the ascending / descending axis and a clamp mounting rib of the handle link; A rotation bracket rotatably connected to one end of the main bracket by a fixing bolt, one end fixed to the main bracket, the other end of the rotation bolt fixed to the rotation bracket after being wound several times, A positioning guide which is fixed to the rotary bracket at one end and which is bent in a curved shape in the opposite direction after the other end is extended in the file direction and the head is in close contact with the lower roller mounting bracket, And a cutting nozzle having a stopper bolt fixed to the rotation bracket by two nuts and mounted on an end of the rotation bracket.

In addition, the upper roller that is rotated by the driving motor may further include a sliding keypad packing mounted along a circular surface closely contacting the upper rail.

Further, the main bracket on which the lower roller mounting bracket and the upper roller mounting bracket are mounted and the raising and lowering bracket are further provided with curved guide slots each having the center of rotation of the lower roller mounting bracket and the upper roller mounting bracket, respectively ;

And the lower roller mounting bracket and the upper roller mounting bracket have a guide protrusion inserted into the guide slot.

As described above, according to the present invention, the operation of installing the guide for wrapping the periphery of the steel pipe file allows the guide to be installed easily after the stationary guide is fixed to the steel pipe file, It is effective.

In addition, the cutting device can be easily combined and separated by the operation of the fixing clamp, so that it is easy to use, and the degree of tight contact between the roller and the roller by the spring acts constantly, .

In addition, since the positioning guide allows the cutting nozzle end to operate at a constant distance from the cutting site, the cutting efficiency is high.

Figure 1 is a perspective view of an embodiment of the present invention.
2 is a plan view showing a state before coupling of a guide according to an embodiment of the present invention;
3 is a plan view showing a state in which only the fixed guide according to the embodiment of the present invention is engaged;
4 is a plan view showing a state in which a guide according to an embodiment of the present invention is engaged;
5 is a plan view showing a state where a cutting device is mounted on a guide according to an embodiment of the present invention.
6 is a perspective view illustrating a cutting apparatus according to an embodiment of the present invention.
7 is a rear perspective view illustrating a cutting apparatus according to an embodiment of the present invention.
8 is an exploded perspective view showing a cutting apparatus according to an embodiment of the present invention.
9 to 10 are sectional side views showing a process of mounting a cutting device on a rail according to an embodiment of the present invention.
11 to 12 are a front view showing a process of mounting a cutting device on a rail according to an embodiment of the present invention
13 is a plan view showing each change of the roller according to an embodiment of the present invention.
FIGS. 14 to 15 are schematic views showing the position adjustment of the cutting nozzle according to the embodiment of the present invention. FIG.
16 is a conceptual diagram illustrating operation of a cutting apparatus according to an embodiment of the present invention.
17 is a cross-sectional view of the ground in which a general foundation work file is installed

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a plan view showing a state before a guide according to an embodiment of the present invention is assembled, and FIG. 3 is a perspective view illustrating a state in which only a fixed guide according to an embodiment of the present invention FIG. 4 is a plan view showing a state where a guide according to an embodiment of the present invention is coupled, FIG. 5 is a plan view showing a state where a cutting device is mounted on a guide according to an embodiment of the present invention, FIG. A guide 2 which is formed in a circular shape so as to have a diameter larger than the outer diameter of the steel pipe tube 1 and which is divided in half and a hinge provided at the center of the guide 2 in such a manner that the guide 2 is folded in half, A bushing provided radially inside the guide 2 so that the guide 2 is securely mounted on the steel pipe 1 and the guide 2 is installed so as to surround the steel pipe 1 Dog And a drive motor for rotating one of the rollers to cut a steel pipe file (1) fitted with the guide (2) 1. A concrete pile cutting device for a foundation hole, comprising: a device (3);

The guide 2 has a semicircular shape having an extension angle? Extending by more than 10 degrees from 180 degrees. The guide rail 2 has an upper rail 21 having a circular cross section by a first connection bracket 23 at both ends, A fixing guide 2a to which a guide fixing bolt 24 mounted in the center of the pile 1 is coupled to the first connection bracket 23;

An upper rail 21 and a lower rail 22 having a circular cross section are vertically connected and fixed by a second connection bracket 25 at both ends and in the middle thereof with a semicircular shape lacking more than 10 degrees from 180 °, A guide fixing bolt 24 is attached to the second connection bracket 25 in the direction of the center of the pile 1. The fixing guide 2a has one end coupled to the hinge 26, Closing guide (2b) which is coupled by a guide member (27).

In the past, the guide was formed as a round cylinder, and the rail was formed at the upper part and the lower part. However, when the plate is formed as a plate, the weight is considerably heavy. Therefore, it is difficult to install the guide. It was possible.

Furthermore, if the guide is bisected by 180 ° and locked with the claw 27 and the guide fixing bolt 24 is not tightened, it is not fixed and the operation becomes more inconvenient.

However, in this embodiment, the fixing guide 2a can be fixed only by the guide fixing bolt 24 formed on the fixing guide 2a so that the fixing guide 2a has an angle of 180 degrees or more, The opening and closing guide 2b is fixedly engaged with the locking block 27 so that the operator can be easily mounted. When the installation of the guide 2 is completed, the cutting device 3 And is mounted on the guide 2.

FIG. 6 is a perspective view illustrating a cutting apparatus according to an embodiment of the present invention, FIG. 7 is a rear perspective view illustrating a cutting apparatus according to an embodiment of the present invention, FIG. 8 is a cross- 9 to 10 are side cross-sectional views illustrating a process of mounting a cutting device on a rail according to an embodiment of the present invention, and FIGS. 11 to 12 are sectional views of a cutting apparatus according to an embodiment of the present invention, A main bracket 31 formed in a vertically laid plate shape and having upper and lower ends bent horizontally in the direction of the pile 1; Two lower roller mounting brackets 32 rotatably mounted in holes bored vertically through the bent lower portion of the main bracket 31 and the other side bent vertically and mounted with a horizontal lower roller 321; An ascending / descending bracket 33 extending horizontally; Two upper roller mounting brackets 34 mounted rotatably in holes vertically passing through the ascending / descending bracket 33 and the other of which is bent vertically and mounted with a horizontal upper roller 341; A driving motor 35 for rotating any one of the upper rollers 341; The compression coil spring 361 is inserted into the hole vertically through the bent upper portion of the main bracket 31 and then inserted into the compression coil spring 361. The lower end of the compression coil spring 361 is fixed to the upward / downward bracket 33, A pair of guide bolts 36 for applying a compressive force to the guide bolts 36; A vertical lift shaft 371 extending vertically from the upper end of the main bracket 31 through the guide bolt 36 and fixed at the lower end to the lifting bracket 33 and extending upward from the upper end of the main bracket 31; A grip link 374 having one end rotatably connected to the clamp mounting rib 372 and the other end of which is formed with a handle 373; And a fixing clamp 37 composed of a position spaced apart from the rib 372 and a connecting link 375 rotatably connected at both ends thereof.

In this embodiment, two upper rollers 341 and two lower rollers 321 are provided, respectively. The upper rollers 341 and the lower rollers 321 are closely attached to the upper portion of the upper rail 21 and the lower portion of the lower rail 22, The upper roller 341 is rotated so that the cutting device 3 can move.

The upper roller 341 is mounted on the ascending and descending bracket 33 and is lifted and lowered by the fixing clamp 37 to attach and detach the cutting device 3. At this time, And the handle link 374 are positioned above the connection between the clamp mounting rib 372 and the handle link 374 so that the ascending / descending axis 371 is raised, that is, the upper roller 341 is raised, ) Becomes detachable.

Conversely, when the knob 373 is folded downward, the connection portion between the connection link 375 and the knob link 374 is positioned below the connection portion between the clamp mounting rib 372 and the knob link 374, The upper roller 341 is lowered and the cutting device 3 is fixed.

The upper roller 341 is rotated by the driving motor 35 to further include a sliding keypad packing 343 mounted along a circular surface in close contact with the upper rail 21 so that the upper roller 341 slides So that it can be moved by stable rotation.

13 is a plan view showing a variation of each of the rollers according to an embodiment of the present invention. The main bracket 31 and the ascending / descending bracket 33, on which the lower roller mounting bracket 32 and the upper roller mounting bracket 34 are mounted, Further includes a curved guide elongated hole 39 about the center of rotation of the lower roller mounting bracket 32 and the upper roller mounting bracket 34, respectively;

The lower roller mounting bracket 32 and the upper roller mounting bracket 34 are provided at their bottom surfaces with a guide protrusion 342 inserted into the guide slot 39.

In the above embodiment, any one of the lower roller 321 and the upper roller 341 may be mounted on the rails 321 and 322 due to shocks and vibrations that may occur when the lower roller mounting bracket 32 and the upper roller mounting bracket 34 are simply mounted, The lower roller mounting bracket 32 and the upper roller mounting bracket 34 may be restricted in rotation angle because there is a possibility that the cutting device 3 may be detached.

FIGS. 14 to 15 are conceptual views showing the position adjustment of the cutting nozzle according to an embodiment of the present invention. FIG. 16 is a conceptual view illustrating operation of the cutting apparatus according to an embodiment of the present invention. A rotation bracket 381 rotatably connected to the lower end of the main bracket 31 by a fixing bolt 381 at one end and a rotation bracket 381 fixed at one end to the main bracket 31 and fixed to the fixing bolt 381 And the other end thereof is fixed to the rotation bracket 381 so as to rotate the rotation bracket 381 in the direction of the pile 1. The torsion spring 383 has one end fixed to the rotation bracket 381, A positioning guide 384 having a side end extending in the direction of the pile 1 and then curved in a curved shape in the opposite direction and the head being in close contact with the lower roller mounting bracket 32 and the other side with a rotation bracket 381 The stopper bolt 385 And a cutting nozzle 38 is mounted on the end of the rotation bracket 381. [

In the case of cutting nozzles, which usually use an oxygen torch, the flame is concentrated or the temperature is high depending on the distance from the nozzle, and therefore it is necessary to maintain the distance to be cut most effectively.

Therefore, the present invention allows the torsion spring 383 to always apply a force to bring the cutting nozzle 38 in close contact with the pile 1 and adjust the distance from the pile 1 by the positioning guide 384.

At this time, it is preferable that the positioning guide 384 allows the operator to adjust the distance by bending the wire with a relatively thick wire.

When the distance is determined, the stopper bolt 385 is adjusted to prevent the cutting nozzle 38 from approaching the set distance.

1: File
2: Guide
2a: Fixed guide 2b: Opening and closing guide
21: upper rail 22: lower rail
23: first connection bracket 24: guide fixing bolt
25: second connection bracket 26: hinge
27: Clasp
3: Cutting device
31: Main bracket
32: Lower roller mounting bracket
321: Lower roller
33: ascending / descending bracket
34: Upper roller mounting bracket
341: upper roller 342: guide projection
343: Non-slip packing
35: drive motor
36: Guide bolt
361: Compression coil spring
37: Fixing clamp
371: ascending / descending axial shaft 372: clamp mounting rib
373: Handle 374: Handle link
375: Connection link
38: Cutting nozzle
381: Rotation bracket 382: Fixing bolt
383: Torsion spring 384: Positioning guide
385: Stopper bolt
39: Guide slot

Claims (3)

A guide 2 formed in a circular shape so as to have a diameter larger than the outer diameter of the steel pipe tube 1 and being divided in half and a hinge provided at a central portion of the guide 2 so as to be folded or folded in half, A bushing provided radially in the interior of the guide 2 so that the guide 2 is firmly mounted on the steel pipe file 1 and the guide 2 is installed so as to surround the steel pipe file 1, A cutting device (2) for cutting a steel pipe file (1) equipped with a guide (2), the steel pipe file (1) having two or more rollers moving along the guide (2) and a drive motor for rotating one of the rollers 3), the apparatus comprising:
The guide 2 has a semicircular shape having an extension angle? Extending by more than 10 degrees from 180 degrees and has an upper rail 21 and a lower rail 21 having a circular cross- A fixing guide 2a to which a guide fixing bolt 24 mounted in the center of the pile 1 is coupled to the first connection bracket 23;
An upper rail 21 and a lower rail 22 having a circular cross section are vertically connected and fixed by a second connection bracket 25 at both ends and in the middle thereof with a semicircular shape lacking more than 10 degrees from 180 °, A guide fixing bolt 24 is attached to the second connection bracket 25 in the direction of the center of the pile 1. The fixing guide 2a has one end coupled to the hinge 26, Closing guide (2b) which is engaged by a guide member (27);
The cutting device (3) comprises a main bracket (31) formed in a vertically installed plate shape and having upper and lower ends bent horizontally in the direction of the pile (1); Two lower roller mounting brackets 32 rotatably mounted in holes bored vertically through the bent lower portion of the main bracket 31 and the other side bent vertically and mounted with a horizontal lower roller 321; An ascending / descending bracket 33 extending horizontally; Two upper roller mounting brackets 34 mounted rotatably in holes vertically passing through the ascending / descending bracket 33 and the other of which is bent vertically and mounted with a horizontal upper roller 341; A driving motor 35 for rotating any one of the upper rollers 341; The compression coil spring 361 is inserted into the hole vertically through the bent upper portion of the main bracket 31 and then inserted into the compression coil spring 361. The lower end of the compression coil spring 361 is fixed to the upward / downward bracket 33, A pair of guide bolts 36 for applying a compressive force to the guide bolts 36; A vertical lift shaft 371 extending vertically from the upper end of the main bracket 31 through the guide bolt 36 and fixed at the lower end to the lifting bracket 33 and extending upward from the upper end of the main bracket 31; A grip link 374 having one end rotatably connected to the clamp mounting rib 372 and the other end of which is formed with a handle 373 and an upper end of the lifting and lowering shaft 371 and a clamp mounting A fixed clamp 37 composed of a position spaced apart from the rib 372 and a connecting link 375 rotatably connected at both ends thereof; A rotation bracket 381 rotatably connected to the lower bent end of the main bracket 31 by a fixing bolt 381 and one end fixed to the main bracket 31 and fixed to the fixing bolt 381 And the other end is fixed to the rotation bracket 381 to rotate the rotation bracket 381 in the direction of the pile 1. The torsion spring 383 has one end fixed to the rotation bracket 381, A positioning guide 384 that extends in the direction of the file 1 and then curves in a reverse direction and a positioning guide 384 that is bent in a direction opposite to the position of the rotation guide bracket 381 by a nut And a cutting nozzle (38) including a fixed stopper bolt (385) and mounted on an end of the rotation bracket (381).
The slide fastener according to claim 1, wherein the upper roller (341) rotated by the drive motor (35) further comprises a sliding keypad packing (343) mounted along a circular surface in close contact with the upper rail (21) Steel pipe file cutting device for basic use.
The apparatus according to claim 1 or 2, wherein the main bracket (31) and the lifting bracket (33) on which the lower roller mounting bracket (32) and the upper roller mounting bracket (34) ) And a curved guide slot (39) about the center of rotation of the upper roller mounting bracket (34);
Wherein the lower roller mounting bracket (32) and the upper roller mounting bracket (34) have a guide protrusion (342) inserted into the guide slot (39).

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