KR100760869B1 - Head cutting device for concrete pile - Google Patents

Abstract

A head cutting device for concrete pile is provided to obtain clean cutting surface when cutting the head portion the concrete pile with a plurality of circular cutting blades and to prevent the workers from being injured during the cutting process. A head cutting device for concrete pile comprises a fixed cylinder(110), a fixing unit(120), a rotary cylinder(130), a cutting unit(140), a rotary unit(150) and a control unit(160). The fixed cylinder is inserted to a head portion of the concrete pile. The fixing unit secures the concrete pile tightly. The rotary cylinder is inserted to the fixed cylinder, so that a predetermined portion of upper part of the fixed cylinder is to be exposed towards downside the fixing unit. The cutting unit is provided with a plurality of numbers in every direction of outer periphery of the rotary cylinder to cut the concrete pile located inside. The rotary unit rotates the rotary cylinder up to the cutting unit in a predetermined range. The control unit controls the operation of the rotary unit and the cutting unit.

Description

Head cutting device for concrete pile {HEAD CUTTING DEVICE FOR CONCRETE PILE}

1 is a working example showing the head clearance of a conventional concrete pile,

Figure 2 is a schematic perspective view showing the main configuration of the head cutting device for a concrete pile of the present invention,

Figure 3 is a schematic cross-sectional view showing the coupling relationship of the main line A-A 'of FIG.

Figure 4 is a schematic perspective view showing a fixing means and a rotating means coupled to the fixed cylinder of the present invention,

5 is a schematic perspective view showing cutting means coupled to a rotating cylinder of the present invention;

6 is a plan view showing the operation of the fixing means and the rotating means of the present invention,

7a to 7c is a plan view showing a schematic operating state of the cutting means and the rotating means of the present invention.

<Explanation of symbols for main parts of the drawings>

100: tofu cutting device 110: fixed cylinder

120: fixing means 130: rotating cylinder

140: cutting means 150: rotating means

160: control means

The present invention relates to a cutting device for cutting the head of the concrete pile, and more particularly, by forming a plurality of circular saw blades on all sides at the same time cutting the concrete pile, as well as a quick and convenient work as well as improved work safety and construction quality The present invention relates to a head cutting device for concrete piles, which improves the efficiency of concrete.

In general, in order to secure stability and prevent ground subsidence during the construction of structures or structures, such as construction or civil works, the foundations are ground by embedding or embedding a number of concrete piles that securely support the lower part to reach underground rocks. Construct a structure or building on it.

As a method of inserting the concrete pile into the ground, an anti-penetration method using a hammer is generally used. When the hammer of the anti-penetration method is used, the head of the concrete pile is damaged by inserting the hammer through the hammer. It is broken.

Accordingly, the head of the concrete pile to which the head is broken should be arranged. In the related art, a crusher mounted on a fork crane is crushed or a worker cuts directly using a chainsaw or the like, or a separate cutting device as shown in FIG. It was installed on the head of the pile and cut through the hammer.

1 is a view showing the "top head clearing cutting device of the common house foundation file" of registration number 10-0497620 Looking at its contents, the height of the foundation pile is installed on the protruding ground and the height is adjusted by the hydraulic pressure introduced from the outside Coupling height adjustment support frame (1) and two sets of band binding holes (2) on the upper part of the height adjustment support frame is in close contact with the cutting head of the outer head of the foundation pile (3) and fastened by fastening bolts and nuts It is characterized in that it is composed of a crushing top bar (7) located in the center of the band (4) and the foundation pile to crush the concrete portion (6) by the hammer (5).

However, according to the arrangement of the head of the concrete pile by the above-described method, since the worker must work by holding a separate tool directly and applying force, the debris splashes, causing injury to the worker or sharply crushed parts that are not cut accurately. The safety was not secured, and there was a problem in that the cutting of the relatively thick concrete pile and the cutting of the iron core embedded in the concrete pile required a lot of work time and smoothed the head.

The present invention has been made to solve the above problems of the prior art, an object of the present invention to provide a concrete pile having a quick and clean cutting surface when cutting the head of the concrete pile.

Another object of the present invention is to cut the concrete pile and embedded iron core at once to bring the improvement of work efficiency.

Another object of the present invention is to ensure the safety of the work of the worker when cutting.

The head cutting device for concrete piles of the present invention for achieving the above object, the fixed cylinder is inserted into the head of the concrete pile, a plurality of through-holes are formed on the upper outer peripheral surface and the support jaw is formed at the lower end, and through the fixing cylinder A fastening means for tightly fixing the concrete pile located through the ball and being inserted into the fixed cylinder so that the upper portion of the fixed cylinder is exposed to the lower side of the fixing means, and a bearing formed on the base formed at the bottom of the fixed cylinder. And a cutting means for cutting the concrete pile located inside the rotating cylinder in which a plurality of saw blade holes are formed on the lower outer peripheral surface of the mounting jaw, and the outer peripheral surface of the rotating cylinder is formed therein to be coupled to the mounting jaw; It is formed on one side of the exposed outer circumferential surface of the fixed cylinder so as to be symmetrical to both sides with respect to the fixing means upward. One end is hinged to the outer circumferential surface of the fixed cylinder, the other end is rotatably coupled to the outer circumferential surface of the rotating cylinder to control the rotation means for rotating the rotating cylinder by a predetermined range and the operation of the rotating means and cutting means. It characterized in that it comprises a control means to.

Preferably, the fixing cylinder further includes a hook for connecting to a separate moving means such as cargo crane on both sides of the upper outer circumferential surface.

The fixing means is preferably composed of a hydraulic cylinder.

The cutting means is bent at a predetermined angle to correspond to the outer circumferential surface shape of the rotating cylinder and the hinge is formed at one end is coupled to the base plate hinged to the outer circumferential surface of the rotating cylinder, the hinge is formed on the other end of the base plate formed a plurality of Pulleys are laminated and formed, a pulley case having a pulley shaft for connecting the pulley and the circular saw blade formed at the bottom, and a pulley coupled to the pulley and the belt of the pulley case is formed on the top, and rotates the pulley to the base plate A secondary support plate which is formed to surround the outer peripheral surface of the motor and the outer peripheral surface of the motor to a certain distance, one end is combined with the hinge of the base plate, the other end is combined with the pulley case and serves as a handle that can be manually rotated by the operator and The auxiliary support plate and one end is coupled to the hinge, the other end is coupled to the outer circumferential surface one side and the hinge of the rotating cylinder It is preferable that it is formed to include a hydraulic cylinder to rotate by a predetermined angle by pressing and contracting the auxiliary support plate coupled to the hinge.

In the pulley case, it is preferable to further form a semi-circular saw blade case outside the circular saw blade formed at the bottom for safety during work and storage.

The rotating means is formed in a plurality of spaced apart a predetermined distance up and down, one end is coupled to the outer peripheral surface of the fixed cylinder, the other end is formed by the hinge is formed on the support plate coupled up and down, and the "b" shaped stopper formed on the outer peripheral surface of the rotating cylinder and One end is rotatably coupled to the "b" shaped hanger, the other end is preferably composed of a hydraulic cylinder coupled to the hinge and the hinge coupling formed on the support plate.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the drawings for describing the present invention are omitted from the hydraulic piping of the hydraulic cylinder installed in each component, because this is a well-known technology in the industry. .

2 to 6, the main configuration of the head cutting device for concrete pile 100 of the present invention is largely fixed cylinder 110, fixing means 120, the rotating cylinder 130, cutting means 140, It consists of a rotating means 150 and a control means 160.

The fixed cylinder 110 is inserted into the head of the concrete pile (P), a plurality of through-holes 111 are formed on the upper outer peripheral surface, a bottom portion protruding from a certain area is formed at the lower end between the through holes Hanging ring 113 is connected to the cargo crane, etc., which are separate moving means on both sides.

By the formation of the hook ring, the head cutting device 100 of the present invention can be hung on a separate moving means such as a cargo crane or a fork crane, and inserted into the ground so that a certain portion of the head can be easily inserted into the projected concrete pile P. It is.

Of course, the diameter of the fixed cylinder should be wider in a predetermined area than the diameter of the concrete pile (P) to be inserted.

The fixing means 120 is to tightly fix the concrete pile (P) located inside through the through hole 111 of the fixing cylinder, the hydraulic cylinder 121 whose operation is adjusted by the hydraulic pressure flowing from the outside It is composed.

The hydraulic cylinder is generally used in the related art because the hydraulic inlet is formed on both sides and consists of a tube forming a cylinder outer body, a piston formed inside the tube, and a piston rod connected to the piston. Since it is a technology, detailed description is omitted and will be referred to as "hydraulic cylinder".

Rotating cylinder 130 is inserted into the fixed cylinder so that the upper portion of the fixed cylinder 110 is exposed to the lower portion of the fixing means 120, the bearing 131 to the support jaw 112 formed on the lower end of the fixed cylinder. A seating jaw 132 to be coupled is formed, and a plurality of saw blade holes 133 are formed on a lower outer circumferential surface of the seating jaw.

Rotating cylinder 130 by the bearing 131 formed on the seating jaw is easily rotated from side to side without interfering with each other about the fixed cylinder (110) (see Fig. 3).

Cutting means 140 is formed on the outer circumferential surface of the rotary cylinder (4) to cut a concrete pile (P) located inside, the main configuration is the base plate 141, the pulley case 142, It is formed including a motor 143, the auxiliary support plate 144 and the hydraulic cylinder 145.

The base plate 141 is bent at a predetermined angle to correspond to the outer circumferential surface shape of the rotating cylinder 130, the hinge (H) is formed at one end is hinged to the outer circumferential surface of the rotating cylinder 130 to rotate by a predetermined range .

The pulley case 142 is coupled to the other end of the base plate 141, the hinge (H) is formed, a plurality of pulleys (142-1) are laminated on the top, the pulley and the circular saw blade (142-3) formed at the bottom Built-in pulley shaft (142-2) to connect the support of the pulley shaft is not tightly shaken during rotation of the pulley shaft.

The pulley case further formed a semi-circular saw blade case 142-4 in the outer direction of the circular saw blade (142-3) formed at the bottom to increase the safety of work by blocking the worker from danger during work and storage.

The motor 143 is coupled to the outer circumferential surface of the base plate 141, but a pulley 143-1 having a shape corresponding to the pulley 142-1 of the pulley case 142 is formed on the top thereof, and thus the pulley 142-of the pulley case is formed. 1) is connected to the belt (V) to drive the pulley of the pulley case to rotate the circular saw blade (142-3) coupled to the lower end of the pulley shaft (142-2).

Auxiliary support plate 144 is formed to be bent to cover the outer peripheral surface of the motor 143 by a predetermined distance, one end is coupled to the hinge (H) of the base plate 141, the other end is coupled to the pulley case 142 worker Serves as a knob that can be rotated manually.

The hydraulic cylinder 145 is coupled to the auxiliary support plate and one end by the hinge (H), the other end is coupled to one side and the hinge (H) of the outer peripheral surface of the rotating cylinder to press and contract the auxiliary support plate 144 by the hinge It is to rotate by a certain angle.

Briefly explained to help the operation of the hydraulic cylinder, when the piston rod inside the hydraulic cylinder is advanced to the outside of the cylinder by the hydraulic pressure introduced from the outside, the auxiliary support plate 144 and the base connected to the hinge (H) The plate 141 is pressed inward to insert the circular saw blade 142-3 formed at the lower end of the pulley case 142 into the saw blade hole 133 of the rotary cylinder 130.

Rotating means 150 is formed on one side of the exposed outer peripheral surface of the fixed cylinder 110 to be symmetrical to both sides with respect to the fixing means 120 to the upper side of the cutting means 140, but one end hinged to the outer peripheral surface of the fixed cylinder , The other end is rotatably coupled to the outer circumferential surface of the rotating cylinder 130 by a predetermined angle to rotate the rotating cylinder by a predetermined range (see Fig. 6), the main configuration is formed of a plurality of spaced apart a predetermined distance up and down once Are respectively coupled to the outer circumferential surface of the fixed cylinder 110, the hinge (H) is formed at the other end is coupled to the support plate 151 is formed up and down, and the "b" shaped hanger 152 formed on the outer circumferential surface of the rotating cylinder 130 And one end is rotatably coupled to the "b" shaped hanger, the other end is composed of a hydraulic cylinder 153 is coupled to the hinge (H) formed in the support plate and the hinge coupling.

Looking at the operation (see Fig. 5) of the rotating means 150, when the piston rod of the left hydraulic cylinder is contracted out of the pair of rotating means is formed, the piston rod of the right hydraulic cylinder is relaxed and coupled to the rotating cylinder 130 Press the "L" shaped hanger 152 to rotate in a counterclockwise direction.

In the clockwise rotation, the opposite operation of the left and right hydraulic cylinders described above is performed.

The control means 160 is a device that controls the operation of the rotating means 150 and the cutting means 140 of the head cutting device 100 for concrete piles of the present invention as well known in the industry using conventional techniques Therefore, detailed description is omitted.

Hereinafter, the operation relationship between the components of the head cutting device for a concrete pile according to the present invention will be described in detail with reference to Figure 7a to 7b.

First, the head cutting device 100 for a concrete pile of the present invention is carried by a separate moving means such as a fork crane or a cargo crane, the cutting means of the moving means on the hook 113 formed on the outer circumferential surface of the fixed cylinder 110 during the cutting operation. Hanging on the crane is embedded in the head of the concrete pile (P) protruding into the ground.

Figure 7a is to insert the head cutting device for concrete piles 100 of the present invention to the head of the concrete pile (P), and then advance the hydraulic cylinder 121 of the fixing means 120 by the operation of the control means 160. By pressing the concrete pile (P) tightly fixed, and supplying the hydraulic pressure to the hydraulic cylinder 145 of the cutting means 140 to advance the piston rod of the hydraulic cylinder, the auxiliary support plate 144 and the base plate 141 in turn ) By pressing in the concrete pile (P) direction circular saw blade 142-3 formed on the lower end of the pulley case 142 of the cutting means 140, as shown in Figure 7b (see reference numeral 7a) rotating cylinder 130 Is inserted into the saw blade hole 133 formed at the bottom.

When the circular saw blade is inserted into the saw blade hole as described above (rotate the circular saw blade even before insertion) by driving the motor 143 formed on the base plate 141 to rotate the pulley shaft (142-2) connected by the belt (V) When the saw blade 142-3 is rotated, the circular saw blade rotates to cut the concrete pile P.

At this time, since the fixing means 120 formed on the upper portion of the fixed cylinder 110 during the cutting rotation of the circular saw blade firmly supports the head outer circumferential surface of the concrete pile (P), the concrete pile above the cutting line of the circular saw blade (142-3) It is to prevent the interference of the rotation of the circular saw blade by the self-weight of (P) so as to easily rotate.

When the circular saw blade is completely cut so as to pass through the through-hole formed in the concrete pile (P) by operating the hydraulic cylinder 153 of the rotating means 150 by manipulation to the control means 160 (see Figure 7a reference numeral 7a) As the rotary cylinder 130 rotates, other parts of the uncut line may be completely cut through the rotation of the rotary cylinder.

When dismantling after the cutting operation proceeds in the reverse order of the above-described cutting operation to separate the circular saw blade (142-3) from the saw blade hole 133 of the rotary cylinder 130, the hydraulic cylinder 121 of the fixing means 120 Shrink the piston rod of the) to be separated from the concrete pile (P), and the crane connected to the hook ring 113 is vertically lifted the head cutting device for concrete pile 100 of the present invention is to be separated from the concrete pile (P). .

Although the technical idea of the head cutting device for a concrete pile of the present invention has been described above with the accompanying drawings, this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

Therefore, it is apparent that any person skilled in the art can make various modifications and imitations such as dimensions, shapes, structures, etc. without departing from the scope of the technical idea of the present invention.

As described above, the head cutting device for concrete piles according to the present invention is installed in a separate moving means such as cargo crane and automatically operated by a control means, thereby ensuring fast work as well as worker safety. The iron core embedded in the cutting machine can be cut at one time, thereby improving work efficiency and dramatically improving construction quality by providing a clean cutting surface.

Claims (6)

In the cutting device for cutting the head of the concrete pile during the treatment of the head of the concrete pile embedded in the ground to reinforce the soft ground, A fixed cylinder 110 inserted into the head of the concrete pile and having a plurality of through-holes 111 formed on an upper outer circumferential surface thereof and having a support jaw 112 formed at a lower end thereof; Fixing means 120 for tightly fixing the concrete pile located in the inner through the through-hole of the fixing cylinder; The mounting jaw 132 is inserted into the fixing cylinder so that the upper portion of the fixing cylinder is exposed to the lower portion of the fixing means, and a bearing 131 is coupled to the supporting jaw formed at the lower end of the fixing cylinder. A rotating cylinder 130 having a plurality of saw blade holes 133 formed on a lower outer circumferential surface thereof; Cutting means 140 is formed on the outer circumferential surface of the rotating cylinder to cut a plurality of concrete piles located therein; It is formed on one side of the exposed outer circumferential surface of the fixed cylinder to be symmetrical to both sides relative to the fixing means to the upper side of the cutting means, one end is hinged to the outer circumferential surface of the fixed cylinder, the other end is rotatable at a predetermined angle to the outer circumferential surface of the rotating cylinder Rotating means 150 is coupled to rotate the rotating cylinder by a predetermined range; Control means for controlling the operation of the rotating means and the cutting means (160); Concrete cutting head curving device comprising a. The head cutting device according to claim 1, wherein the fixing cylinder (110) further comprises a hook (113) connected to a separate moving means such as cargo crane on both sides of the upper outer circumferential surface. The head cutting device for a concrete pile according to claim 1, wherein the fixing means (120) comprises a hydraulic cylinder (121). The base plate 141 of claim 1, wherein the cutting means 140 is bent at a predetermined angle to correspond to the outer circumferential surface shape of the rotating cylinder 130, and a hinge H is formed at one end thereof to hinge the outer circumferential surface of the rotating cylinder. )and; Is coupled to the other end of the hinge formed base plate, a plurality of pulleys (142-1) are laminated on the top, and the pulley shaft (142-2) connecting the pulley and the circular saw blade (142-3) formed at the bottom A pulley case 142 to be built-in; A pulley 143-1 connected to the pulley 142-1 of the pulley case and a belt V formed at an upper end thereof, and a motor 143 rotating the pulley and coupled to an outer circumferential surface of the base plate; It is formed so as to surround the outer peripheral surface of the motor at a certain distance, one end is combined with the hinge (H) of the base plate and the other end is combined with the pulley case 142, the auxiliary support plate 144 which serves as a handle that can be manually rotated by the operator ) And; The auxiliary support plate and one end is coupled to the hinge (H), the other end is coupled to the outer peripheral surface one side of the rotating cylinder and the hinge (H) to press and contract the auxiliary support plate coupled to the hinge to rotate by a certain angle (145) Tofu cutting device for a concrete pile, characterized in that formed; The head cutting device for a concrete pile according to claim 4, wherein the pulley case further comprises a semicircular saw blade case (142-4) formed outside the circular saw blade formed at the bottom for safety during work and storage. According to claim 1, The rotating means 150 is formed in a plurality of spaced apart a predetermined distance up and down, one end is coupled to the outer circumferential surface of the fixed cylinder 110, the other end is formed by the hinge (H) support plate coupled up and down 151; A "b" shaped hanger 152 formed on the outer circumferential surface of the rotating cylinder; One end is rotatably coupled to the "b" shaped hanger, the other end is a hydraulic cylinder (153) is coupled to the hinge (H) and hinge coupling formed on the support plate; Concrete cutting head for cutting device comprising a.

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