KR102043718B1 - clamp unit of vibrating Pile driver - Google Patents

Abstract

The file clamp unit of the vibration pile driver of the present invention includes a hollow portion into which a pile is inserted, an inner vibration body portion, an intermediate body portion supported by a vibration support unit to surround an outer circumferential surface of the inner vibration body portion and to enable the inner vibration body to vibrate; And a vibration generating unit installed at a lower side of the internal vibration main unit to provide a vibration force for driving or withdrawing a pile. Is installed on the lower side of the inner vibration main body for clamping the pile inserted into the hollow portion,
A clamp frame installed on the inner vibration main body, a fixing jaw installed on the clamp frame, a movable jaw mounting portion of the clamp frame corresponding to the fixing jaw, and movable jaw moved forward and backward by an actuator, and the clamp frame It is provided with a pile guide part for pulling and guiding the pile for installation to the pile insertion unit.

Description

 Clamp unit of vibrating pile driver

The present invention relates to a vibrating pile driver, and more particularly, to a clamp unit of a vibrating pile driver for gripping a pile to install a pile using vibration.

In general, pile construction in civil engineering and housing building foundation construction, reinforcement of soft ground, etc. will use a press-in or anti-penetration method. Concrete piles, steel pipe piles, steel beams, screw piles are used for the pile construction. In order to construct these piles, the upper end of the pile is hit by using a driving machine, or in the case of a screw pile, the auger is inserted into the construction site and rotated.

As described above, the file, in particular, the concrete file, steel beam, steel pipe pile, etc., when hitting the construction, there is a problem that the hitting part is damaged, there is a problem that the withdrawal of the studded file is not easy.

Japanese Patent No. 07-102562 discloses a self-propelled vibration driving machine. The posted vibration driving device includes a prop means which moves by itself, a driving device that imparts a driving force to the prop means, and is rotatably driven by the prop means, and a first extension means that expands and contracts the means in a horizontal direction with respect to the drive device; And a second expansion means for stretching the loading means in a vertical direction along the guide sphere with respect to the first expansion means, at least a means for clamping the pile and an exciter for providing vibration.

In addition, Japanese Laid-Open Patent Publication No. 2006-169942 discloses a vibrating bottle pile take-up machine and a rotary anti-punching method for vibrating bottle.

Piling machine has a pile chuck that penetrates up and down along the centerline and allows the pile to be inserted, an excitation to vibrate the pile chuck, and a length of the pile with respect to the pile held by the pile chuck. And a mechanism for imparting rotation about the direction centerline.

And the Republic of Korea Patent Publication No. 1992-0014996 discloses a vibration file driver.

Conventional pile squeeze device configured as described above can be inserted into the hollow portion to vibrate or rotate the pile held by the pile chuck.

However, when the file needs to be moved relative to the clamp for gripping the file or for the construction and withdrawal of the file, the file may not move smoothly due to friction with the clamp portion. In particular, in order to grip the pile loaded or placed in the horizontal direction, the load of the pile acts on the pile insertion portion or the fixing jaw of the electric pile driver, there is a problem that the work efficiency due to the grip of the pile is relatively low.

Japanese Laid-Open Patent No. 2006-169942

The technical problem to be solved of the present invention is installed in the vibration file driver can reduce the friction with the jaws for fixing the file when gripping and construction of the file, and the vibration file driver that can improve the work efficiency according to the grip of the file To provide a pile clamp unit.

Another technical problem to be solved by the present invention is to provide a file clamp unit of a vibration file driver capable of introducing (towing) the file to be installed into the file insertion portion of the vibration file driver.

The file clamp unit of the vibration file driver of the present invention for solving the above technical problem

 The hollow portion into which the pile is inserted is provided on the lower side of the inner vibration body portion, the intermediate body portion supported by the vibration support unit to surround the outer circumferential surface of the inner vibration body portion and enable the inner vibration body to vibrate, Vibration generating unit that provides a vibration force for driving or withdrawing. Is installed on the lower side of the inner vibration main body for clamping the pile inserted into the hollow portion,

A clamp frame installed on the inner vibration main body, a fixing jaw installed on the clamp frame, a movable jaw mounting portion of the clamp frame corresponding to the fixing jaw, and movable jaw moved forward and backward by an actuator, and the clamp frame It is characterized in that it is provided with a pile guide portion for towing and guide the pile for installation in the pile insertion unit.

In the present invention, the pile guide part is rotatably installed by the fixing jaw, the first guide roller for pulling the pile in contact with the pile to be installed, and is installed in the fixing jaw to rotate the first guide roller A first actuator is provided.

The pile guide portion further includes an auxiliary pile guide roller portion, wherein the auxiliary pile guide roller portion is rotatably installed by a fixing bracket installed on a clamp frame, the fixing bracket and a hinge pin, and contacts a pile for holding on an end side. And a second link roller for guiding the second guide roller, and a second actuator mounted on the clamp frame to rotate the rotary link.

The vibration file driver of the present invention can improve the work efficiency according to the gripping of the file by guiding the file to be constructed, and can smoothly move to the vibration driver with respect to the file to improve the gripping and construction of the file. Can be. In particular, the file to be constructed can be moved to the file insertion unit of the vibration driver, so the grip of the file is easy, and no separate equipment for mounting the file is required.

And since the file can be gripped from various angles, it has the advantage of expanding the work area.

1 is an ablation perspective view of a vibration file driver according to the present invention,
2 is a perspective view showing an extract of the pile clamp unit shown in FIG.
3 is a partially cutaway perspective view of the pile clamp unit according to the present invention;
4 is a cross-sectional view of the pile clamp unit according to the present invention;
5 is a cross-sectional view showing another embodiment of the pile clamp unit according to the present invention.
6 to 8 is a view showing a support state of the pile in the state mounted on the vibration pile driver in the excavator,
9 is a view showing a construction state of the pile in the state mounted on the vibration pile driver in the excavator.

Vibration pile driver according to the present invention is to be able to construct a pile using vibration, an embodiment thereof is shown in Figures 1 to 4.

The driver body 11 of the vibration pile driver 10 according to the present invention includes an inner vibration main body 20 in which a hollow portion 21 into which a pile is inserted is formed in a longitudinal direction, and an outer circumferential surface of the inner vibration main body 20. Surrounding the inner vibration body 20 is provided with an intermediate body portion (not shown) supported by the vibration support unit to enable vibration. And the outer circumference of the intermediate body portion is provided with an outer body portion 50 surrounding it, between the intermediate body portion and the outer body portion 50 for rotatably supporting the intermediate body portion relative to the outer body portion 50 The bearing unit is installed. A pile clamp unit 70 for clamping a pile inserted into the hollow portion 21 or a pile for construction is installed at a lower side of the internal vibration main body 20, and a lower portion of the internal vibration main body 20 is provided. That is, the vibration generating unit 30 is provided on the inner vibration main body 20 of the upper side of the pile clamp unit 70 to provide a vibration force for driving or withdrawing a pile.

 And although not shown in the figure between the intermediate body portion 40 and the outer body portion 50 is provided with a first rotary drive unit for forward and reverse rotation of the intermediate body portion relative to the outer body portion 50, the outside The main body 50 is provided with a coupling unit 100 which is rotated by a clamp and a bucket hydraulic cylinder 210 (see FIG. 5) installed in the boom 200 of the excavator. The coupling unit 100 and the outer body portion 50 may be provided with a second rotary drive portion for rotating the outer body portion 50 relative to the coupling unit 100.

In the vibrating pile driver 10 as described above, the pile clamp unit 70 is configured as follows.

The pile clamp unit 70 is installed in the internal vibration main body 20, the clamp frame 71 is installed on the lower side of the vibration generating unit (30). The clamp frame 71 is provided with a hollow pile inserting portion 72 in communication with the hollow portion.

 A fixing jaw 73 extending downward from the edge of the pile inserting portion 72 is installed at the lower side of the clamp frame 71 of the pile clamp unit 70, and the hydraulic cylinder 74 serving as the actuator is provided at the side corresponding thereto. It is provided with movable jaw 75 for backing and holding a pile. And it is installed in the clamp frame 71 and the fixing jaw 73, and has a pile guide portion 80 for pulling and guiding a file for clamping to the pile insertion portion for construction.

The pile guide part 80 is rotatably installed by the fixing jaw 73 to be in contact with the pile 300 for construction, and to guide the pile to the first guide roller 81 and the fixing jaw 72. It is provided with a hydraulic motor 82 which is a first actuator for rotating the first guide roller 81.

The first guide roller 81 is preferably installed on the end side of the fixing jaw (73). The first guide roller 81 is preferably formed to be relatively larger than the diameter of the second guide roller 87 to be described later, the frictional contact force with the pile 300 is greatly increased on the outer circumferential surface of the first guide roller 81 It is preferable to form irregularities for forming. The unevenness formed on the outer circumferential surface of the first guide roller 81 is preferably formed to provide a traction force of the pile 300 when the first guide roller 81 is rotated by the hydraulic motor 82.

And the end side of the fixing jaw 73 may be provided with a guide portion inclined toward the first guide roller 81 side to smoothly guide the pile toward the first guide roller 81 side.

The pile guide part 80 further includes an auxiliary pile guide roller part 85. The auxiliary pile guide roller portion 85 is installed on the clamp frame 71 in a diagonal direction corresponding to the first guide roller 81 installed in the fixing jaw (73), fixed to the clamp frame (71) Rotating the bracket 86 and the first guide roller 87 which is rotatably installed on the fixing bracket 86 by a hinge pin 87a and contacts and guides the pile 300 to be gripped on the end side. Link 88 is provided. Both ends of the clamp frame 71 and the rotary link 88 are connected to each other so that the second guide roller 87 installed at the end thereof by rotating the rotary link 88 may be moved toward the center of the pile insertion unit 72. Hydraulic cylinder 89, which is a second actuator to enable.

The auxiliary pile guide roller portion 85 is not limited to the above-described embodiment, and has a structure capable of reducing frictional force with the pile when the pile 300 is inserted into the pile insertion portion 72 of the clamp frame 71. Is possible.

5 shows another embodiment of the pile guide unit 150 as shown. In this embodiment, the same reference numerals as the above embodiment indicate the same components.

Referring to the drawings, the pile guide part 150 is provided with an auxiliary roller 151 at the end side of the fixing jaw 73, the movable jaw (75) side to the lead or out of the pile inserting portion (72) A first guide roller 81 is installed, and the hydraulic motor 82 is installed on the clamp frame 71 and is a first actuator for rotating the first guide roller 81. In the present embodiment, the first guide roller may be installed on the clamp frame 71 of the side where the movable jaw 75 is installed.

Referring to the operation of the vibration file driver according to the present invention configured as described above are as follows.

First, in order to perform the operation of putting the file using the vibration file driver according to the present invention, the coupling unit 100 of the vibration file driver 10 is mounted on the coupler installed in the boom 200 of the excavator.

In this state, the movable jaw 72 is spaced apart from the fixed jaw 71 of the pile clamp unit 70 installed in the internal vibration main body 20 to terminate the clamping mode. And using the bucket hydraulic cylinder 210 is installed on the boom 200 of the excavator to adjust the angle of the driver body 11 and guide the pile 300 to be installed in the pile insertion unit 72. . At this time, the first guide roller 81 is rotated in the direction of pulling the pile 300 by using the hydraulic motor 82 which is the first actuator. Therefore, the pile 300 flows into the pile insertion unit 72 by the first guide roller 81. In particular, since the irregularities are formed on the outer circumferential surface of the first guide roller 81, the frictional force with the pile 300 is increased, so that the pulling and drawing of the pile is smoothly performed.

In inserting the pile into the pile inserting unit 72 as described above, the posture of the vibration pile driver installed at the end of the boom 200 of the excavator is piled on the pile inserting unit 72 as shown in FIGS. Maintain the posture using the excavator and the first and second rotary drive so that the insertion of the 300 can be made smoothly.

The first installed at its end by operating the hydraulic cylinder 89, the second actuator of the auxiliary pile guide roller portion 85 in the state that the initial flow of the pile 300 is made as described above to advance the rotary link (88). The guide roller 87 supports the upper surface of the file flowing in, and thus the file 300 is inserted into the file insertion unit 72 smoothly.

The support of the pile by the first and second guide rollers 81 and 87 is such that the center of gravity of the pile installed horizontally or inclined as shown in FIGS. 6 and 7 is lower than that of the pile inserting portion 72. When positioned on the inserted lower side, the first guide roller 81 supports the lower surface of one side, and the upper surface of the pile 300 is supported by the second guide roller 87 in a state of being misaligned with the pile insertion unit ( On the basis of 72), the transfer of the pile in the forward and backward directions can be made smoothly. The transfer of the pile 300 may be made by the rotation of the first guide roller 81 by the hydraulic motor (82).

When the pile insertion into the pile insertion unit 72 is completed as described above, the movable jaw 75 is advanced by the hydraulic cylinder 74 to hold the pile.

In addition, as shown in FIG. 8, when the file 300 is inserted into or removed from the file insertion unit 72, the file 300 is initially moved by the auxiliary roller 151, and the moved file 300 is clamped to the clamp frame 71. The first guide roller 81 installed in the rotating by the hydraulic motor 82 to move the pile 300.

When the gripping of the file 300 is completed as described above, the file 300 is moved to the file time-sharing value, and as shown in FIG. 9, the first and second rotary drives 90 and 110 and the boom of the excavator are shown in FIG. 9. Using the bucket hydraulic cylinder 210 installed, the intermediate body portion 40 is rotated with respect to the outer body portion 50 to adjust the posture of the pile 300 in the circumferential direction and the construction angle of the pile 300.

As described above, when the adjustment of the posture and the construction angle of the pile 300 is completed, vibration is generated at the same time by using the vibration generating unit 80, that is, the first and second vibration generating units 81 and 85. In this way, the internal vibration main body 20 vibrates with respect to the intermediate body part 40, so that the pile is lodged by applying vibration for construction to the pile 300 gripped by the pile clamp unit 70. At this time, the first and second vibration generating units 81 and 85 may be synchronized with rotation so that the vibration direction by the eccentric weight is synchronized in the up and down direction, thereby improving the vibration force for driving the pile.

And in order to drive or withdraw the file 300 again in the state of a certain length of the file is embedded, the clamping state by the movable jaw 75 of the file 300 is released, and the vibration file driver is raised or lowered. In the first guide roller 81 and the second guide roller 87 is to support and guide both sides of the pile (300). Therefore, interference of the vibration file driver moving along the file 300 may be minimized.

As described above, the vibration file driver of the present invention can construct the file at an arbitrary angle, can improve the straightness of the file, and can be mounted on the hollow part, that is, the file insertion part, without any additional equipment of the file to be installed. It can improve the operational efficiency.

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.

Claims (3)

The hollow part into which the pile is inserted is provided on the lower side of the inner vibration main body part, an intermediate main body part supported by the vibration support unit to surround the outer circumferential surface of the inner vibration main body part and enable the inner vibration body to vibrate, Vibration generating unit that provides a vibration force for driving or withdrawing. Is installed on the lower side of the inner vibration main body for clamping the pile inserted into the hollow portion,
A clamp frame installed on the inner vibration main body, a fixing jaw installed on the clamp frame, a movable jaw mounting portion of the clamp frame corresponding to the fixing jaw, and movable jaw moved forward and backward by an actuator, and the clamp frame It is provided with a pile guide for inserting or withdrawing the file for installation in the file insertion unit,
The pile guide part is rotatably installed on at least one side of the fixing jaw or clamp frame to be in contact with the pile for construction, and to guide the drawing in and out of the pile, and the fixing jaw or clamp frame is installed on the first frame. A first actuator for rotating the guide roller,
The pile guide portion further includes an auxiliary pile guide roller portion, wherein the auxiliary pile guide roller portion is rotatably installed by a fixing bracket installed on a clamp frame, the fixing bracket and a hinge pin, and is in contact with a file for holding on the end side. And a second actuator for guiding a second guide roller, and a second actuator mounted on the clamp frame to rotate the rotary link. delete delete

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