JPH0629224Y2 - Reaction force August Cru for pile press-in / pull-out machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a pile used when press-fitting a steel sheet pile, a steel pipe pile, etc. (hereinafter referred to as a steel pile) into or out of the ground The present invention relates to a reaction force August crue for a press-fitting / pulling machine.

(Prior art) Steel river piles are used for earth retaining work, deadline work, underground work, etc. for river revetment work and bridge work, etc., as well as temporary structures for revetment bridge work, etc. It is also widely used as a support pile.

In order to press fit these steel piles, a self-propelled pile press-fitting / extracting machine that moves on the steel piles has been conventionally used. At the initial stage of press-fitting the piles, there was no existing steel pile, so a reaction force platform was used.

(Problems to be solved by the invention) As described above, the reaction force pedestal was used for the initial press-fitting of the steel piles, but the conventional reaction force pedestal has two grounding legs configured in parallel. It is composed of a body, and a plurality of connecting plates are formed between the grounding legs, and a holding body of the clamp is formed between the connecting plates. This conventional reaction force stand is a heavy object made of steel in order to obtain a large reaction force, and a large-scale heavy machine such as a large crane must be used when moving or grounding.

Further, since the reaction force platform is not fixed to the ground, it is difficult to capture the reaction force from the ground sufficiently. Therefore, the reaction force platform is increased in size and weight, or the reaction force platform is It was necessary to put weights on top and increase the weight.

When using the above reaction force platform, the installation legs on both sides of the structure will protrude outside the front, rear, left and right of the pile press-in / pull-out machine, so in a place where the pile press-fitting site is narrow or near an adjacent object, Due to the installation leg, the press-fitting location was limited.

An object of the present invention is to provide a reaction force auger screw for a pile press-in / extractor which can reliably and easily grip the pile press-in / extractor at the time of initial press-fitting of a steel pile and obtain a stable reaction force.

(Means for Solving the Problems) In order to achieve the above object, the reaction force Augustine screw for a pile press-in / extractor of the present invention has a clamp holding portion of the clamp of the pile press-in / extractor at the upper end of the Augustine screw. Characterize.

(Operation) The reaction force auger screw is held by the auger screw drive device, and the drive force device is rotated to screw the reaction force auger screw to the ground.

At this time, if the reaction force auger screw can be directly held by the driving device, it may be held as it is, but in the present embodiment, the case where the attachment is used will be described.

After a suitable number of reaction force auger screws, that is, the same number as the number of clamps, are screwed, the clamp portion formed at the upper end of the reaction force auger screw is clamped by the clamps to fix the pile press-fitting / extracting machine.

At the time of initial press-fitting of the steel pile, while holding the sandwiching part by the clamp, the steel pile is held by the chuck in front of the pile press-in / pull-out machine, and the press-fitting is performed while obtaining the reaction force by the above-mentioned reaction force August crue.

(Embodiment) Hereinafter, a reaction force August screw for a pile press-fitting / extracting machine of the present invention will be described based on an illustrated embodiment.

FIG. 1 is a perspective view of a first embodiment of a reaction force auger screw for a pile press-fitting / pulling machine, and FIG. 2 is a perspective view of the same second embodiment.

The reaction force auger screw 1 is formed by welding a holding part 2 to the upper part of the auger screw 3, and the holding part 2 is configured to be attachable to and detachable from the auger screw driving device by an attachment 20 described later.

The attachment 20 shown in FIG. 3 has a rectangular cross section,
The holding portion 2 is provided at the center of the lower end of the auger screw connecting portion 21.
And a fitting portion 22 for fitting with. The attachment 20 has a rectangular cross section, but the shape is not limited to this, and a shape suitable for the August screw driving device, for example, a hexagonal cross section can be selected.

When using the present embodiment configured as described above, first,
Inserting and fixing the fitting portion 2 of the reaction force August cruc 1 into the fitting portion 22 of the attachment 20 in the August cruc drive device,
After mounting the attachment 20 on the August crucible drive unit, the driving unit is actuated to rotate the reaction force August crucible 1 to screw the reaction force August clue 1 into the ground.

After screwing an appropriate number of reaction force auger screws 1 into the ground, the clamp portion 11 of the pile press-fitting and extracting machine 10 is clamped to fix the pile press-fitting and extracting device 10 on the reaction force auger screw 1.

Then, the press-fitting pile is held by the chuck 12 configured in front of the pile press-fitting and extracting machine 10 and press-fitted in the ground.

As described above, according to the present embodiment, the configuration is simple and the transportation and installation can be easily performed. In addition, since the reaction force August Cru exists inside the pile press-in / pull-out machine, effective pile press-in work can be performed even in a narrow work site or near an adjacent object.

The shape of the holding part 2 is the clamp 11 of the pile press-fitting / pulling machine 10.
The shape of the steel sheet pile to be press-fitted must be matched. Therefore, in the present embodiment, since the steel sheet pile is used as the press-fitting pile, the holding portion 2 has a plate shape, but in another embodiment shown in FIG. 2, the holding portion 5 has a cylindrical shape.

That is, in order to press fit the steel pipe pile, the clamp of the pile press-fitting / extracting machine has a columnar shape, so that the holding portion 5 must have a columnar shape as shown in FIG.

Therefore, as shown in FIG. 4, in the attachment 25 used in this embodiment, the fitting portion 27 formed at the lower end must also have a cylindrical shape. In the figure, 6 and 28 are for inserting bolts for fixing the holding portion 5 and the fitting portion 27.

The action and effect of the reaction force auger screw 4 of this embodiment are the same as those of the first embodiment.

(Effects of the Invention) As described above, according to the present invention, it is possible to obtain a strong reaction force with a simple structure, and to easily carry it without using a large heavy machine for transportation, grounding, moving, etc. Produce an effect.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a first embodiment of a reaction force August CRU for a pile press-in / pull-out machine, and FIG.
FIG. 5 is a perspective view of the second embodiment, FIGS. 3 and 4 are perspective views of a connection attachment, and FIG. 5 is a front view showing a use state of the first embodiment. 1, 4 ... Reaction force August cru for pile press-in / extractor 2,5 ... Clamping part 3, ... August cru 10 ... Pile press-in / extractor

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A reaction force auger screw for a pile press-fitting / extracting machine, in which a clamp holding portion of a clamp of the pile press-fitting / extracting machine is formed on an upper end of the August cruc.