KR102377517B1 - Pile drilling guide for excavator - Google Patents

Abstract

The present invention relates to a pile drilling device for an excavator, comprising: a rotating coupling member detachably coupled to a coupler of an excavator; a lifting frame provided in front of the rotary coupling member to be capable of being raised and lowered; a motor rotatably coupled about an axis perpendicular to the lifting frame and generating a rotating force; a clamp connected to the lower side of the motor and clamping downward so that the perforated pipe and the pile are aligned vertically; a perforated pipe made of a hollow pipe whose upper end is clamped to the clamp; It is constructed as a device that penetrates the clamp and is rotatably connected by the motor, and includes an auger installed in the perforated pipe to perforate the ground, and performs the drilling of the pile hole and the insertion of the pile hole at the same time. The work is simple, eliminates the spatial constraints of pile construction, reduces work defects by ensuring that the pile hole and the pile are always vertical, prevents the auger from bending, maintains straightness, and allows the drilling location to be drilled. It relates to a pile drilling device for an excavator that can be quickly positioned and conveniently performs inclined drilling work.

Description

Pile drilling guide for excavator}

The present invention relates to a pile drilling device for an excavator. More specifically, the pile drilling device is configured to be attachable and detachable to an excavator, so that excavation work and drilling work can be operated complexly without the need to operate a separate crane to drill the ground. This relates to a file drilling device for an excavator that can reduce construction costs and can quickly maintain the straightness of the drilling device through the arm movement of the excavator, allowing drilling work to be performed quickly and easily.

Generally, in order to construct a high-rise building such as an apartment, the ground is first built by driving PHC, steel pipe piles, H-beams or sheet piles into the ground at regular intervals to safely support the building. was stably supported.

In the case of piles used in such foundation construction, they can be constructed using a driving method using a hammer or a drilling method that scoops out soil using an auger to achieve both a water blocking effect and an earth retaining effect to prevent the collapse of the excavation surface. .

As a technology for devices used in existing pile excavation construction, the "pile excavation device" of Patent Document 1 was proposed, and it is rotatably coupled to the lower end of the perforated pipe, so that the perforated pipe is guided perpendicularly to the already installed pile. It is provided with a cylindrical vertical guide part, wherein the rotating cylindrical vertical guide part is formed in a cylindrical shape and is rotatably coupled to the lower end of the perforated pipe, and a guide that is seated on the side end of a pile already installed on one side of the rotating guide tube and moves vertically. A configuration including a seating part, a flat bearing bushing provided between the perforated pipe and the rotation guide tube, an upper support member provided in the perforated pipe on the upper side of the rotation guide pipe, and a lower support member provided in the perforated pipe on the lower side of the rotation guide pipe. proposed.

However, in Patent Document 1, as the drilling work of the pile worker and the driving work of the pile are carried out separately, the construction work is not only complicated but also delays the construction period, and the drilling equipment and driving equipment are installed and operated together in the workplace. , there were problems that not only increased construction costs but also made efficient use of the workplace difficult.

On the other hand, Patent Document 2 is an invention related to a drilling device used in an auger crane for piles, and includes a crane part that is hinged to the stage so that the angle can be adjusted by an angle-adjusting cylinder, and to which a multi-stage boom is elastically coupled, and at the end thereof. A motor rotatably coupled about an axis perpendicular to the hinged rotary coupling member and generating rotational force, and a clamp connected to the lower side and clamped downward so that the perforated pipe and the pile are aligned vertically; A perforated pipe made of a hollow pipe whose upper end is clamped to the clamp; an auger connected to the motor through the clamp and installed within the perforated pipe; and a variable excavation bit that is fixed to the lower end of the auger and is located on the lower side of the pile clamped to the clamp, and whose excavation diameter varies depending on the direction of rotation.

Due to the lifting of the crane, the top of the auger frame hangs on the connecting pin of the crane part, making it difficult to accurately locate the position where the auger drills into the ground, resulting in time delay. For accurate drilling, auxiliary workers must hold the bottom of the auger. There is a problem of delay and additional manufacturing costs in the work that must be manually positioned or constructed by including an additional auxiliary support to support the auger frame at the bottom of the car body.

In addition, depending on the lifting weight of the crane, it is difficult to perform inclined drilling other than ground drilling, and because the initial preparation work for drilling takes a long time, there is a problem of lack of work efficiency.

KR 10-2014-0131635 A KR 10-1851114 B1

In order to solve the above problems, the present invention configures the drilling device to be attachable and detachable to the excavator, so that excavation and drilling operations can be operated in combination without the need to operate a separate crane to drill the ground, thereby reducing construction costs. The purpose is to provide a file drilling device for an excavator that can quickly and easily perform drilling work by quickly maintaining the straightness of the drilling device through the arm movement of the excavator.

In order to achieve the above object, the present invention includes a rotary coupling member detachably coupled to a coupler of an excavator; a lifting frame provided in front of the rotary coupling member to be capable of being raised and lowered; a motor rotatably coupled about an axis perpendicular to the lifting frame and generating a rotating force; a clamp connected to the lower side of the motor and clamping downward so that the perforated pipe and the pile are aligned vertically; a perforated pipe made of a hollow pipe whose upper end is clamped to the clamp; A pile drilling device for an excavator is provided, comprising an auger that penetrates the clamp and is rotatably connected by the motor, and is installed in the drilling pipe to drill the ground.

The rotation coupling member includes a first coupling portion having a link bar that is detachably coupled to a coupler of an excavator; a second coupling portion having a moving roller movably connected to the lifting rail of the lifting frame; It is characterized in that it includes a rotating disk provided between the first coupling part and the second coupling part to roll and rotate the second coupling part with respect to the first coupling part.

The lifting frame includes a housing provided between the motor and the clamp to protect the motor shaft and the auger shaft at the center; It is characterized in that it includes an elevating rail coupled to one side of the housing to enable elevation corresponding to the moving roller along the longitudinal direction.

The clamp includes a body having an insertion portion formed at the lower portion for fitting inside the upper end of the perforated pipe and a first hinge portion being provided at the upper portion; a spacer that protrudes to extend downward to be positioned between the perforated pipe and the file so that the file is stably seated on the side of the perforated pipe inserted into the insertion portion of the body; a gripper that is hinged to both sides of the body by a second hinge portion and rotates around the second hinge portion so that each lower end presses and fixes the top of the perforated pipe and the top of the pile; The piston rod is hinged to a third hinge portion at the top of each gripper, and each end includes a clamping cylinder that is hinged to the first hinge portion.

By providing the present invention configured as described above, construction costs can be reduced by allowing complex operation of excavation and drilling work without the need to operate a separate crane to drill the ground, and drilling through the arm movement of the excavator. The straightness of the device can be maintained quickly, allowing drilling work to be performed quickly and easily, and the pile hole can be drilled vertically or at a desired angle without location restrictions on pile construction.

Figure 1 is a configuration diagram showing the configuration of the pile drilling device for an excavator according to the present invention and the state of installation on the excavator.
Figure 2 is an exemplary diagram showing a state in which the pile drilling device for an excavator according to the present invention is installed on the coupler of an excavator.
Figure 3 is a work state diagram of oblique boring of the pile boring device for an excavator according to the present invention.
Figure 4 is an exemplary diagram showing the lifting operation state of the pile drilling device for an excavator according to the present invention.
Figure 5 is a configuration diagram showing a clamp applied to the pile boring device for an excavator according to the present invention.
Figure 6 is an example of a bite device mounted on the end of the drilling pipe of the pile drilling device for an excavator according to the present invention.
Figure 7 is an illustration of a hammer device mounted on the end of a drilling pipe of the pile drilling device for an excavator according to the present invention.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

As shown in Figures 1 to 5, the pile drilling device for an excavator of the present invention includes a rotating coupling member 200, a lifting frame 300, a motor 400, a clamp 500, a drilling pipe 600, and an auger. It may include (700).

The rotating coupling member 200 is detachably coupled to the coupler 130 of the excavator 100.

The excavator 100 applied to the present invention can be used in both a wheel type that runs quickly and a track type that runs stably.

The lifting frame 300 may be provided in front of the rotary coupling member 200 to be capable of being lifted up and down.

The motor 400 is rotatably coupled about an axis perpendicular to the lifting frame 300 and can generate rotational force.

The clamp 500 is connected to the lower side of the motor 400 and can be clamped downward so that the perforated pipe 600 and the pile 10 are vertically side by side.

The perforated pipe 600 is made of a hollow pipe whose upper end is clamped to the clamp 500.

The auger 700 penetrates the clamp 500 and is rotatably connected by a motor 400, and can be installed in the perforated pipe 600 to perforate the ground.

Here, the rotary coupling member 200 may include a first coupling part 210, a second coupling part 230, and a rotating disk 220.

The first coupling portion 210 has a link bar 211 that is detachably coupled to the coupler 130 of the excavator 100.

The second coupling portion 230 has a moving roller 231 that is movably connected along the lifting rail 320 of the lifting frame 300.

The rotating disk 220 is provided between the first coupling part 210 and the second coupling part 230 and can be installed to roll and rotate the second coupling part 230 based on the first coupling part 210. You can.

Therefore, the excavation direction of the auger 700 can be tilted by rotating the rotary coupling member 200, and the drilling operation can be performed by rotating the auger 700 upward to drill a wall or ceiling.

The lifting frame 300 may include a housing 310 and a lifting rail 320.

The housing 310 is provided between the motor 400 and the clamp 500 to protect the motor shaft 410 and the auger shaft 710 at the center.

The lifting rail 320 may be coupled to one side of the housing 310 to enable elevation in response to the moving roller 231 along the longitudinal direction.

The arm 111 is hinged to the stage 110 so that the angle can be adjusted by the arm damper 112, and the arm 111 is elastically coupled to the stage 110.

This arm 111 is centered on the vertical axis by a motor, etc. on the lower body 120 of the excavator 100, which can travel by a wheel 121 rotated by driving an engine or a motor and change direction by a steering device. It can be installed to be able to rotate in the up and down directions on the stage 110, which is installed to rotate.

In addition, the length of the arm 111 can be adjusted according to the degree of unfolding of the multi-stage arm 111 by an actuator such as a hydraulic cylinder or a motor, and the angle is adjusted by the contraction and expansion of the arm damper 112, which is a hydraulic cylinder. Make it adjustable.

The rotation coupling member 200 is hinged to the end of the arm 111. The rotation coupling member 200 is hinged to the end of the arm 111 by a horizontal hinge axis, so that it can be positioned vertically downward from the end of the arm 111.

The rotation coupling member 200 is rotatably coupled to the vertical rotation axis provided at the bottom to prevent separation from the motor 400, thereby enabling the motor 400 itself to rotate so that the pile 10 faces the desired direction. do.

The motor 400 is rotatably coupled to the rotary coupling member 200 about an axis perpendicular to the rotary coupling member 200 and generates rotational force.

The clamp 500 may include a body 510, a spacer 520, a gripper 530, and a clamping cylinder 540.

The body 510 may have an insertion portion 511 formed at the bottom to be inserted into the upper inside of the perforated pipe 600, and a first hinge portion 513 may be provided at the top.

The spacer 520 is positioned downward between the perforated pipe 600 and the file 10 so that the file 10 is stably seated on the side of the perforated pipe 600 inserted into the insertion portion 511 of the body 510. It may protrude to extend.

The gripper 530 is hinged to both sides of the body 510 by a second hinge portion 515, and rotates around the second hinge portion 515 so that each lower end is connected to the upper end of the perforated pipe 600. Each file (10) can be fixed by pressing the top of it.

The clamping cylinder 540 may have piston rods hinged to the third hinge portion 517 at the top of each of the grippers 530, and each end may be hinged to the first hinge portion 513.

The motor 400 may be, for example, a hydraulic motor that generates hydraulic pressure using the engine of the excavator 100, and the motor shaft 410, which rotates by this hydraulic pressure, penetrates downwardly through the clamp 500, which will be described later. It can be arranged to do so.

The clamp 500 is connected to the lower side of the motor 400, and is clamped downward so that the perforated pipe 600 and the pile 10 are aligned vertically.

Here, the clamp 500 may be clamped to be located inside the pile 10 with which the perforated pipe 600 is clamped.

The clamp 500 may have various structures for individually clamping the perforated pipe 600 and the pile 10. For example, the lower part has an insertion portion 511 for fitting inside the upper end of the perforated pipe 600. The pile 10 is stable on the side of the body 510 formed at the bottom and provided with a first hinge portion 513 at the top, and the perforated pipe 600 inserted into the insertion portion 511 of the body 510. It is hinged by a spacer 520 that protrudes downward to be positioned between the perforated pipe 600 and the pile 10 so as to be seated, and a second hinge portion 515 on both sides of the body 510. .

A gripper 530 that rotates around the second hinge portion 515 so that the lower ends of each press and secure the top of the perforated pipe 600 and the pile 10, respectively, and a gripper 530 on the top of each of the grippers 530. Each piston rod is hinged to the third hinge portion 517 and may include a clamping cylinder 540 whose ends are hinged to the first hinge portion 513.

Therefore, each of the grippers 530 is rotated up and down by the contraction and expansion of the clamping cylinder 540, so that the perforated pipe 600 and the file 10 can be clamped or unclamped on the body 510. . This clamp 500 structure is an example, and can be configured in various ways to enable clamping of the top of the perforated pipe 600 and the top of the pile 10.

That is, first hinge portions 513 are provided at the upper ends of both sides of the body 510, and the piston rods are respectively hinged with third hinge portions 517 at the upper ends of each of the grippers 530, and each end is It is hinged to the first hinge portion 513 and is perforated by the elongation of the clamping cylinder 540, and is hinged to each of both sides of the body 510 by the second hinge portion 515 to form a second hinge portion ( By rotating around 515), each lower end can be fixed by pressing the top of the perforated pipe 600 and the top of the pile 10.

Therefore, when excavating the ground by the auger 700, the straightness of the auger 700 is maintained by the clamp 500, thereby causing rolling rotation on the arm 111 of the excavator 100 and the rotation coupling member 200. ) can be comprehensively performed to maintain straightness (verticality) when drilling through rock without eccentricity.

A plurality of connection cylinders 420 are installed vertically so that both ends are coupled to each of the motor 400 and the clamp 500.

The connection cylinder 420 may be, for example, a cylinder operated by hydraulic pressure supplied from the hydraulic supply unit on the excavator 100, and enables the clamp 500 to be raised and lowered from the motor 400 through contraction and expansion operations, As a result, the perforated pipe 600 and the pile 10 can be raised and lowered to a desired height along with the clamp 500 as needed.

The perforated pipe 600 is made of a hollow pipe whose upper end is clamped to the clamp 500.

The perforated pipe 600 may have a discharge port 620 formed on the side through which excavation results are discharged upward and downward.

Therefore, smooth excavation by the auger 700 is possible.

The auger 700 passes through the clamp 500 and is connected to the motor shaft 410 of the motor 400, and is installed within the perforated pipe 600.

For example, the auger 700 may be provided with a screw in a spiral shape on the outer peripheral surface of a rod axially coupled to the motor shaft 410 of the motor 400.

The variable excavation bit 610 is fixed to the lower end of the auger 700 and is located on the lower side of the pile 10 clamped to the clamp 500, and allows the excavation diameter to vary depending on the direction of rotation.

The variable excavation bit 610 has a plurality of bits for excavation at the bottom, and when rotated forward by the motor 400, for example, the diameter is expanded to form an excavation hole with a diameter sufficient to insert the pile 10, During reverse rotation, the diameter is reduced, allowing the pile 10 to be separated upward along with the perforated pipe 600 while remaining in the ground.

Meanwhile, as shown in FIG. 6, the bite tip 821 is provided at the end of the drilling pipe 600 so that the bite device 800 can be detachably removed, such as a rock layer while performing a drilling operation through the auger 700. It can drill through layers that are harder than the ground.

That is, the bite rotation unit 820 having a bite tip 821 along the rotation of the auger shaft 710 that is condensed while the bite fixing unit 810 of the bite device 800 is coupled to the end of the perforated pipe 600. By rotating it, you can grind and drill the hard layer.

In addition, as shown in FIG. 7, a hammer device 900 is detachably provided at the end of the perforated pipe 600, so that it is destroyed by impact, like the sediment layer exposed during the drilling operation through the auger 700. Drilling can be done by destroying layers that are harder than the ground.

That is, vibration is generated by pressure transmitted through the pneumatic line 720 of the auger shaft 710, which is inserted while the vibrating body 910 of the hammer device 900 is fixedly coupled to the end of the perforated pipe 600. , vibration can be transmitted to the hammer head 920, which is provided to be able to emerge from the lower part of the vibrating body 910, to strike and destroy the sediment layer.

In addition, auxiliary wings 730 may be further formed on the outer peripheral surface of the perforated pipe 600 to assist in perforating the ground with the rotation of the perforated pipe 600.

By providing the present invention configured as described above, construction costs can be reduced by allowing complex operation of excavation and drilling work without the need to operate a separate crane to drill the ground, and drilling through the arm movement of the excavator. The straightness of the device can be maintained quickly, allowing drilling work to be performed quickly and easily, and the pile hole can be drilled vertically or at a desired angle without location restrictions on pile construction.

In addition, according to the present invention, the ground is hard and dense, such as a boulder (stone layer) or bedrock (weathered rock, soft rock, hard rock) layer, so it is not possible to construct piles using the direct drilling method or the witter jet method, or at sea level. , it can be used in workplaces that are inaccessible to dedicated equipment for construction, such as road surfaces, high-voltage lines, and underpasses, or sites where civil complaints occur, thereby resolving locational constraints in pile construction.

In addition, according to the present invention, work defects can be reduced and construction quality can be improved by ensuring that the pile hole and the pile are always maintained vertically.

The terms and words used in the specification and claims described above should not be construed as limited to their usual or dictionary meanings, and the inventor has appropriately used the concept of terms to explain his invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined clearly.

Therefore, the configuration shown in the drawings and examples described in this specification is only one of the most preferred embodiments of the present invention, and does not represent the entire technical idea of the present invention, so they cannot be replaced at the time of filing the present application. It should be understood that various equivalents and variations may exist.

10: File 100: Excavator
110: Stage 111: Cancer
112: Arm damper 120: Lower body
121: wheel 130: coupler
200: Rotating coupling member 210: First coupling part
211: link bar 220: rotating disk
230: second coupling portion 231: moving roller
300: Elevating frame 310: Housing
320: Elevating rail 400: Motor
410: Motor shaft 420: Connecting cylinder
500: Clamp 510: Body
511: Insertion part 513: First hinge part
515: second hinge portion 517: third hinge portion
519: Hinge joint 520: Spacer
530: Gripper 540: Clamping cylinder
600: perforated pipe 610: variable digging bit
620: discharge port 700: auger
710: Auger shaft 720: Pneumatic line
730: Aileron wing 800: Byte device
810: Byte fixing unit 820: Byte rotating unit
821: Bite tip 900: Hammer device
910: Vibrating body 920: Hammer head

Claims (7)

a rotating coupling member 200 detachably coupled to the coupler 130 of the excavator 100;
A lifting frame 300 provided in front of the rotary coupling member 200 to be capable of being raised and lowered;
A motor 400 provided on the upper part of the lifting frame 300 and having a motor shaft 410 that vertically transmits rotational force;
A clamp 500 provided at the bottom of the lifting frame 300 to hold the perforated pipe 600 and the pile 10 vertically positioned below each other;
a perforated pipe (600) made of a hollow pipe whose upper end is clamped to the clamp (500);
It penetrates the clamp 500 and is rotatably connected by the motor 400, and includes an auger 700 installed in the perforated pipe 600 to drill the ground,
The rotation coupling member 200 is,
A first coupling portion 210 having a link bar 211 that is detachably coupled to the coupler 130 of the excavator 100;
a second coupling portion 230 having a moving roller 231 movably connected to the lifting rail 320 of the lifting frame 300;
A rotating disk 220 is provided between the first coupling part 210 and the second coupling part 230 and is installed to roll and rotate the second coupling part 230 with respect to the first coupling part 210. ), including
At the end of the perforated pipe 600 is a vibrating body 910 that generates vibration by pressure transmitted through the pneumatic line 720 of the auger shaft 710; A pile drilling device for an excavator, characterized in that it is further provided with a hammer device (900) having a hammer head (920) that is provided to be able to emerge from the lower part of the vibrating body (910) and destroys the sediment layer at the bottom of the drilling hole by hitting.
delete In claim 1,
The lifting frame 300 is,
A housing 310 provided between the motor 400 and the clamp 500 and protecting the motor 400 shaft and the auger shaft 710 at the center;
A pile drilling device for an excavator, characterized in that it includes a lifting rail (320) that is coupled to one side of the housing (310) so as to be capable of being raised and lowered in response to the moving roller (231) along the longitudinal direction.
In claim 1,
The clamp 500 is,
a body 510 formed at the lower portion with an insertion portion 511 for fitting inside the upper end of the perforated pipe 600;
It protrudes to extend downward to be positioned between the perforated pipe 600 and the file 10 so that the file 10 is stably seated on the side of the perforated pipe 600 inserted into the insertion portion 511 of the body 510. a spacer 520;
A pile drilling device for an excavator, comprising a gripper (530) rotatably provided on both sides of the body (510) to clamp the lower end of the drilling pipe (600) and the upper end of the pile (10).
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