JPS5915126A - Penetrating and drawing machine for pile - Google Patents

Abstract

PURPOSE:To obtain the rotational reaction of pile by a method in which when a round pile is automatically clamped, penetrated, and pulled out, a check to turn the round pile is attached to a saddle clamping the existing pile to become a reaction anchor. CONSTITUTION:An oil-pressure plunger cylinder device 13 is contracted, a chuck casing 9 is raised, and a round pile 2 is grasped by a chuck jaw. The chuck 7 is then moved downwards while being turned along a mast 5, whereupon the pile is already clamped by a clamp 3 and a rotational reaction is obtained by the rotation of the chuck jaw.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pile press-fitting and pulling machine, in particular a pile press-fitting machine that press-fits a circular pile while rotating it in a direction around an axis.

Related to pull-out type pile press-in and pull-out machines.

The circular pile is press-fitted while being rotated around its axis, and when pulled out, it is press-fitted by that rotation.

Since the pull-out resistance is reduced, the workability of pile press-fitting and pull-out construction is improved. However, the pile was press-fitted.

In addition to the reaction force against pulling out, a reaction force against pile rotation is also required.

An object of the present invention is to provide a pile press-fitting and pulling machine that can easily obtain pile press-fitting, pulling-out reaction force, and pile rotation reaction force, and can also obtain extremely large press-fitting, pulling-out reaction force, and rotation reaction force. .

The pile press-in and pull-out machine of the present invention includes a saddle equipped with a clamp that grips a circular pile built in the ground as a reaction force anchor for press-fitting and pulling out, and a pile mounted on the saddle and parallel to the pile between the saddle and the saddle. A slide base that can be driven relative to the pile parallel pitch or higher in the direction, and that can be driven up and down relative to the saddle and slide base assembly mounted on a mast erected on the slide base. A method for press-fitting and pulling out a circular pile, which is equipped with an elevating body as a component, and which is integrally moved up and down as the elevating body is driven up and down, and which can be rotated in a direction around a vertical axis. It is characterized in that a chuck is installed adjacent to the clamp.

According to the present invention, the clamp of the saddle is gripped by the pile built in the ground, the elevating body is pressed into the pile, the circular pile is grabbed by the pull-out chuck, and the elevating body is lowered on the mast of the slide base while rotating the chuck. By driving or raising the pile, the circular pile can be pressed in or pulled out.

That is, in the present invention, the pile is press-fitted into the pile by gripping the pile with the clamp.

It serves as a reaction anchor against uprooting and acts as a reaction force against pile rotation. Therefore, according to the present invention, the reaction force against pile press-in and pull-out and the reaction force against pile rotation can be easily obtained. Moreover, the method of taking the reaction force of this invention is to press the earth into the pile through the pile,
It is used as a reaction force against pulling out and rotation, and an extremely large reaction force can be obtained. In addition, since the clamp and chuck are installed together, the reaction force against the rotation of the pile by the chuck is obtained in the form of horizontal shearing load applied to the earth through the built-in pile, and the rotational driving force of the pile is set high. Pile press-in and pull-out construction can be carried out using the method, and therefore, the press-in load for each unit of pile construction can be reduced accordingly, eliminating the tendency of the already-built pile, which is the anchor pile, to float up during pile press-in. and make pile press-fitting more effective. In this respect, the present invention has great significance in view of the fact that construction of this type of pile is more necessary in construction work on soft ground such as wetland areas. In other words, it is possible to effectively improve the usefulness of the combined use of a clamp that grips a pre-erected pile as a reaction anchor and a pile press-in and pull-out chuck.

In the present invention, the existing pile is gripped by the clamp of the saddle, and the slide base is driven on the saddle in the pile parallel direction by more than the pile parallel pitch, and after the press-fitting and pulling chucks are advanced, when necessary, The clamp can be brought to the side of this advanced chuck by driving the →j dollar in the same direction with respect to the slide base, and conversely, after the clamp is advanced using the press-fitting and pull-out chuck as a support base, The press-fit and pull-out chucks can be moved to the side of the advanced clamp. When the clamps and chucks are moved, the necessary parts are held and released, and the relative position between the saddle and slide base assembly and the elevating body is ensured so that the necessary parts are not caught on the pile. The target is lifted by vertical drive.

That is, the saddle and slide base assembly, clamp, and chuck of the present invention serve as an undercarriage for automatically moving the pile press-fitting and pulling machine over the parallel piles built in the ground, so that the pile In combination with press-fitting and pulling out while rotating the pile, good workability of parallel press-fitting or pulling out of circular ready-made piles can be obtained.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, (1) shows a clamp (3) that grips a circular pile (2) built into the ground as a reaction force anchor for pile press-in and pull-out.
The saddle fl extends in the parallel direction of the piles (2). The clamp (3) itself may grip and release the pile (2) by means similar to conventional methods.

(4) is a slide base mounted on the saddle +11, which can be slid on the saddle +11 along the saddle fil by an appropriate method such as a hydraulic plunger cylinder device. Preferably, the slide base (4) is of a turntable type.

The slide base (4) has a mast (6) erected thereon.

(6) is an elevating body mounted on the mast (5), and the elevating body (
6) The saddle (1) and the slide base (4) are assembled by an appropriate method such as by a hydraulic plunger cylinder device.
It is possible to move up and down relative to the assembly.

(7) is a press-fit/pull-out chuck for gripping a circular pile provided on the elevating body (6) adjacent to the clamp (3), and the chuck includes a chuck body (8) integrated with the elevating body (6);
Chuck casing (9) rotatable around a vertical axis
The chuck cylinder (12) is rotated by a driver (10) such as a hydraulic motor via a transmission gear (0).

The chuck casing (9) is suspended from the chuck body (8) by a hydraulic plunger cylinder device (13) and has a ring-shaped swivel which is prevented from rotating in a direction around an axis perpendicular to the chuck body (8) by suitable means. (14), and the chuck inner periphery (12) is supported by the chuck body (8). Furthermore, the chuck (7) has a circular pile (2
) has a jack jaw (15) that grips it from the periphery,
The chuck jaw (15) has a wedge shape with an inclined outer surface. The inner surface of the conical cylinder θφ whose surface is a sliding pair with the inner circumferential surface of the chuck casing (9) is connected to the inner surface of the conical cylinder θφ by a sliding pair of a dovetail groove 0 and a dovetail groove (18). Its underside is the chuck casing (9
) The rising part (19) at the lower end is connected to the upper surface by a sliding pair of a dovetail groove (20) and a dovetail groove (21).

When the hydraulic plunger cylinder group [(13) is compressed and the chuck casing (9) is moved upward against the chuck cylinder (12) on the chuck body (8), the rising part θ9 of the chuck casing (9) The chuck jaw (16) is pushed up by the conical cylinder (I→) and the chuck jaw (
The chuck jaw 05) is pushed towards the center of the chuck (7) by the inclined cam action of the inclined surface of 16).
Grab the circular pile (2). When the chuck casing (9) is lowered with respect to the chuck inner cylinder (12) using the hydraulic plunger cylinder device (I3), the chuck jaws (15)
) open outwards to release the pile (2).

When the chuck inner cylinder (12) is rotated by the driver (10) via the transmission gear (11), the rotation causes the chuck jaws θ to move between the dovetails (18) of the conical cylinder (16) and the chuck jaws (15). Ant s0? ) through the coupling in a direction around a vertical axis.

The vertical movement of the chuck (7) is controlled by the mast (5) of the elevating body (6) relative to the saddle (1) and slide base (4) assembly.
The vertical movement of the clamp (3) is performed by vertical movement of the saddle (1) and slide base (4) relative to the chuck (7).

The movement of the clamp (3) relative to (7) to a required position in the parallel direction of the pile (2) is performed by relative drive between the saddle i11 and the slide base (4).

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 8 is an enlarged vertical detailed view of the chuck in the embodiment shown in FIG. 1, and FIG. Figure 8 is a sectional view taken along the line
FIG. m Saddle, (2)...Circular pile, (3) Clamp, (4)...Slide base, (5)・Mast, (6)...Elevating body, (7)・Chuck,
(8)・Chuck body, (9)・Chuck casing,
(10)...driver, (11) transmission gear, (12)...
... Chuck inner cylinder, (15) ... Chuck jaw. (And more) Figure 2 5 Figure 4 16 / Figure 5 Figure 6

Claims (1)

[Claims] ■ A saddle equipped with a clamp that grips a circular pile erected in the ground as a reaction force anchor for pile press-fitting and pulling out; The components include a slide base that can be driven relative to each other, and an elevating body that can be driven vertically relative to the saddle and the slide base assembly, which is mounted on a mast erected on the slide base. A press-fitting/pull-out chuck for gripping a circular pile is provided adjacent to the clamp, and is movable up and down integrally with the vertical movement of the vertical axis of the vertical axis, and is rotatable in a direction around a vertical axis. A pile press-in and pull-out machine characterized by being equipped with.