JPS6146616B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a pile press-in and pull-out machine, in particular a clamp for gripping piles that have been built side by side on the ground, and a relative vertical drive and the above-mentioned Pile press-fitting, which is capable of relative back-and-forth driving in the pile parallel direction over one pile pitch or more, and includes two chucks installed together for grasping press-fitted or pulled-out piles as a component;
Regarding drawing machines.

Such pile press-in and pull-out machines are conventionally known, and when press-fitting and pulling out piles, the piles that have already been built parallel to the ground are grasped with clamps, so that the pile press-in and pull-out machines can stand on the piles on their own. The earth can be used as a reaction force against the pile press-in and pull-out machine, and an extremely large reaction force can be obtained.
In addition, by combining the relative vertical drive between the clamp and the chuck, as well as the relative back-and-forth drive in the pile parallel direction for more than one pile pile pitch, the pile can be pressed into and pulled out on the pile pile that has been piled in parallel. The machine can be moved one step by itself in the required direction for subsequent pile press-in or pull-out construction, and is suitable for pile press-in in water areas such as rivers and ports.
Pulling work can be carried out easily without the need for scaffolding such as a stage or a built-up island, and since it has two chucks, it is possible to press-fit or pull out two piles at the same time. Good workability.

In order to expand the usefulness of this type of pile press-in and pull-out machine based on the above-mentioned characteristics, it is desirable to be able to use the same chuck for grooved steel sheet piles having different groove depths. Traditionally, this has relied on two chucks being moved as a whole in the desired direction by separate hydraulic cylinder/plunger devices, whereby each chuck's movement Because it is equipped with a hydraulic cylinder/plunger device, the structure is not only complicated and large, but also the hydraulic cylinder/plunger device for moving the chuck on the clamp side is compatible with the various types required for this type of pile press-in and pull-out machine. Due to the requirements, it is necessary to place the chuck between the saddle with the clamp and the chuck frame, and this is realized by placing two chucks in a position suitable for gripping two parallel piles at the same time. Then, the presence of the hydraulic cylinder/plunger device on the chuck on the clamp side significantly impedes the chuck's degree of freedom in turning in the horizontal plane, so even if the chuck is made into a swivel type,
There is a drawback that it is not possible to press-fit the new press-fitted pile into the existing pile at a 90° angle, that is, so-called corner punching.

Therefore, the present invention provides a pile press-fitting/pulling machine of the type described above, which has two chucks installed in parallel, and has the versatility to quickly grasp grooved steel sheet piles with different groove depths without hindering the degree of freedom of rotation. The purpose is to ensure conciseness.

Furthermore, in addition to the above-mentioned versatility, the present invention aims to provide the chuck with performance suitable for gripping piles for correcting the direction of pile press-in.

The pile press-in and pull-out machine of the present invention includes a clamp that grips piles that are lined up on the ground, and a clamp that is placed adjacent to the clamp and that is arranged between the clamp and the clamp to move the piles up and down in the parallel direction. It is equipped with a chuck frame that can be driven back and forth relative to the height of the pile and can also rotate around the vertical axis, and the chuck frame can press in or pull out two piles in parallel at the same time. a first chuck and a second chuck for gripping the pile, the first chuck being removable and movable as a whole in opposite directions of the chuck gripping member by means of a hydraulic cylinder plunger device; The position of the chuck 2 can be changed between a first position where it grips a normal pile to be press-fitted and a second position where it grips a pile for correcting the pile press-fitting direction,
The present invention is characterized by comprising positioning means for regulating the position of the second chuck between the first position and the second position.

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

In the figure, 1 is a plurality of clamps that grip piles that are lined up on the ground, 2 is a saddle equipped with the clamps 1, 3 is the clamp 1...A first parallel body,
A chuck frame 3 is disposed adjacent to the right side of FIG. Slide base 5
It is mounted on the mast 6 above.

The slide base 5 is capable of relative back-and-forth movement between the saddle 2 and the saddle 2 in the parallel direction of two piles at one pitch or more at the same time, that is, two parallel pitches or more. 6, it is possible to drive it up and down. That is, in the illustrated pile press-fitting and pulling machine, the chuck frame 3 is a combination of the saddle 2 of the clamp 1, the slide base 5, and the mast 6, in other words, it can be substantially moved up and down relative to the clamp 1. In addition, the chuck frame 3, together with the combination of the lifting body 4, the mast 6, and the slide base 5, is connected to the saddle 2 of the clamp 1, in other words, substantially between the clamp 1 and the pile in the parallel direction (following direction). Relative back-and-forth driving of the hepile over one pitch is possible. To move the chuck frame 3 up and down relative to the clamp 1, a hydraulic drive is used, for example, one end is connected to the mast 6.
It is sufficient to apply a method using a hydraulic cylinder/plunger device whose other end is connected to the elevating body 4, and the chuck frame 3 to the clamp 1
A similar device may be used to drive the chuck frame 3 back and forth in the longitudinal direction, and a similar device or a hydraulic motor may be used to rotate the chuck frame 3. The mast 6 is preferably pivotable in a direction about a vertical axis, which may be accomplished in any suitable manner, such as by means of a hydraulic motor.

Clamp 1 on the chuck frame 3 above...
A first chuck 7 is provided on the far side of the parallel body, and a second chuck 8 is provided on the near side. The first chuck 7 and the second chuck 8 are arranged so as to be able to simultaneously press in or pull out two piles in parallel. The first chuck 7 is removable from the chuck frame 3 and is movable on the chuck frame 3 by means of a hydraulic cylinder plunger device 9 in the direction opposite the chuck gripping members 7a, 7b as a whole. Second chuck 8
is the first position for grasping the normal press-fit piles, i.e. the press-fit piles P ₁ and P ₂ other than the piles for pile press-fit direction correction (refer to the composite display position of the solid line and broken line in Fig. 1), and the pile press-fit direction correction pile. The second to grab the pile
(See the chain line position in FIG. 1) on the chuck frame 3. Furthermore, the position of the second chuck 8 is regulated between the first position and the second position on the chuck frame 3 by means of positioning means, for example, a positioning pin 10. The pin 1
0 is inserted through a fixed pin hole on the chuck frame 3 into a fixed pin hole in the main body of the second chuck 8 to position the second chuck 8.

In the illustrated embodiment of the present invention, the pile press-in, pile press-in and pull-out using a puller are the same as those of the conventional method. In this example, the press-fit piles P ₁ and P ₂ , which are normal press-fit piles and have different groove depths, are positioned at the first position for the second chuck 8, and for the movable side chuck. Grab member 8a
The first chuck 7 can be gripped within the movable range of the chuck gripping members 7a, 7a,
7b to the required position and grab the pile _P5 with the shallow groove there.

That is, according to the present invention, the second chuck 8 is kept in a fixed position and only the first chuck 7 is moved, so that the second chuck ₈ is left in a fixed position and the second chuck ₈ is moved. The positional alignment of the first and second chucks 7 and 8 can be easily performed.

The hydraulic cylinder/plunger device 9 that moves the first chuck 7 in a required direction grips two piles to be press-fitted in parallel with the first chuck 7 and the second chuck 8 and press-fits them simultaneously. 1st
Grab the chuck 7 of members 7a and 7b.
By adjusting the position in the opposite direction, in other words, in the web thickness direction of the pile to be press-fitted, it is also useful for finely controlling the direction of the press-fitting of the pile gripped by the first chuck 7. When the direction of the pile gripped by the first chuck 7 is restricted, the direction of the pile connected to the pile by the lip of the flange is also restricted.

Due to various reasons, when the pile is press-fitted, the pile may fall backward or forward in the direction of the thickness of the pile web. Conventionally, in such cases, the width of the web is higher on the upper side for piles that fall backwards.
The pile for correcting the press-fitting direction, which gradually becomes wider, is connected to the pile for correcting the press-fitting direction, and the pile for correcting the press-fitting direction, which gradually becomes wider toward the lower end, is connected and press-fitted in the case of a pile that falls forward, and the press-fitting direction is corrected. This type of pile for press-fitting direction correction is press-fitted in a direction in which it falls forward or backward due to resistance to entering the ground, based on the gradual widening of the web width on one side and the pile groove shape. Make corrections. This press-in direction correcting pile is designated by the reference numeral P ₃ in FIG. 1, and assumes a relative position as shown in FIG. 1 with respect to the piles P ₁ and P ₂ .

Regarding the pile P ₃ for correcting the press-fitting direction, remove the first chuck 7 from the chuck frame 3, move the second chuck 8 from the first position to the second position, and at that position tighten the positioning pin 10. All you have to do is control your position and grab pile _P3 .

To press-fit a new pile into the previously press-fitted pile by swinging it 90 degrees, that is, to perform the so-called corner punching,
It is only necessary to displace the chuck frame 3 by 90 degrees from the phase shown in Fig. 1. At this time, since the second chuck 8 does not have a hydraulic cylinder/plunger device for position adjustment, the degree of freedom of turning is inhibited. Never. If necessary, displace the chuck frame 3 at an angle other than 90° so that the following pile is attached to the leading pile at a 90° angle.
It is also possible to press fit at an angle other than °.

As is clear from the above description of the embodiments, according to the present invention, the first and second dual chucks can have grooves with different groove depths without hindering the degree of freedom of turning. Not only is it guaranteed to have the versatility to quickly handle the gripping of steel sheet piles, but also the performance suitable for gripping piles for correcting the pile press-in direction can also be provided.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is a front view, and FIG. 3 is a side view. 1 is a clamp, 2 is a saddle, 3 is a chuck frame, 7 is a first chuck, 7a and 7b are chuck gripping members of the first chuck, 8 is a second chuck, 9 is a positioning pin (positioning means),
P ₁ and P ₂ are normal press-fit piles, and P ₃ is a pile for correcting the pile press-fit direction.

Claims (1)

[Claims] 1 A clamp that grips piles that are placed side by side on the ground, and a clamp that is placed adjacent to the clamp and is connected to the clamp with relative vertical movement and relative back and forth movement of one pile or more in the pile paralleling direction. a chuck frame capable of being driven and further pivotable in a direction about a vertical axis, the chuck frame comprising a first gripping frame for gripping two piles in order to simultaneously press in or pull out two piles side by side; chuck and a second chuck, the first chuck being removable and movable as a whole in a direction opposite the chuck gripping member by means of a hydraulic cylinder plunger device, and the second chuck being a conventional press fit. Positioning means that is convertible between a first position for gripping the pile and a second position for gripping the pile for correcting the pile press-fitting direction, and for regulating the position of the second chuck between the first position and the second position. A pile press-fitting and pulling machine characterized by being equipped with.