JPH069065Y2 - Auxiliary press-in / pull-out device for pile press-in / pull-out machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an auxiliary press-fitting / pulling-out device which is useful when equipped in a self-propelled pile press-fitting / pulling-out machine.

A conventional self-propelled static load type press-fitting / pulling machine has an existing pile clamp 2 below a base 1 fixed on an existing pile as shown in FIGS. 1 and 2, and press-fitting / pulling above the base 1. A machine main body 3 is provided upright, and an elevating body 5 for elevating and lowering a side of the press-fitting / extracting machine main body 3 by a cylinder device 4 is provided. Further, a pivotable pile gripping device 6 provided on the elevating body 5 is provided. The steel sheet pile is configured to be driven in or pulled out. This pile press-in / pull-out machine is an existing pile clamp 2
The cylinder device 4 is actuated to raise or lower the lifting body 5 while taking a reaction force by the force, and the pile gripping device 6 strongly chucks the steel sheet pile for press-fitting or withdrawing.

However, since such a conventional pile press-in / pull-out machine is configured to self-propel while taking a reaction force by the existing pile, it is necessary that the ground height of the existing pile is substantially constant. Also, the height of the existing pile clamp 2 must be such that it can be clamped. Therefore, there is a drawback that the pile driving work exceeding the effective length of the existing pile cannot be successful and that any of the existing piles cannot be further lowered or pulled out. Therefore, for example, when performing work on a sloping ground, it is necessary to perform a means usually called "high hammering", that is, after cutting the piles according to the highest pile, and cutting unnecessary parts. There was a difficult point. Therefore, the work range that can be piled is narrowed, and there are difficulties that hinder construction, and the main body is supported only by the clamps of the existing piles. It had the drawback of not having sufficient sex.

It is an object of the present invention to provide a device which eliminates the above-mentioned drawbacks existing in the conventional pile press-in / pull-out machine, expands the working range, and increases the stability of the pile press-in / pull-out machine main body.

The configuration of the present invention will be described below based on an embodiment shown in the drawings.

FIG. 3 is a side view showing the structure of the present invention, and FIG. 4 is a side view of FIG.
FIG. Reference numeral 11 in the figure denotes a foundation placed on the existing pile 12, and an existing pile clamp 13 is provided below the foundation 11.
To provide. A press-fitting / pulling-out machine main body 14 is erected above the base plate 11 and is constructed so as to be vertically movable by a cylinder 15. A lift 16 and a cylinder device 1 are provided on the side of the press-fitting / pulling machine main body 14.
7 is provided so that the elevating body 16 can be moved up and down. Below the lifting and lowering body 16, a pile gripping device 18 which can be freely rotated.
Is provided so that the steel sheet pile 19 can be driven in or pulled out.

On the other hand, a guide portion 20 is formed on one end side of the base 11 and at a portion facing the pile gripping device 18 and the base 11 and an auxiliary cylinder 21 is attached to the guide portion 20. The auxiliary cylinder 21 is slidably attached to the guide portion 20 in a direction perpendicular to the traveling direction of the press-fitting / extracting machine body 14. A pile gripping device 22 is provided at the lower end of the auxiliary cylinder 21 so that the existing pile 23 can be chucked.

In the above embodiment, the auxiliary cylinder 21 can be operated independently, and the pile gripping device 22 can perform press-fitting and pulling-out work of the existing pile 23. That is, in the embodiment shown in FIG. 3, while the existing pile 12 is being clamped by the existing pile clamp 13, the pile gripping device 18 is used to press fit or pull out the steel sheet pile, and the auxiliary cylinder 21 is operated to operate the pile gripping device. Two
2 shows a state in which press-fitting or pulling-out work is performed while chucking the existing piles 23 having different heights. Therefore, due to the presence of the auxiliary cylinder 21 and the pile gripping device 22, it is possible to perform a work that cannot be performed only by the conventional device, and the work range is substantially expanded. Further, by operating the cylinder device 17 to operate the pile gripping state 18 while maintaining the auxiliary cylinder 21 and the pile gripping device 22 in the operating state, the device main body supports the existing pile clamp 13 and the pile gripping device 22 at two points. As a result, the reaction force is taken, the reaction force system becomes sufficient, and the stability of the entire apparatus can be improved.

FIG. 5 shows an example of use of the device according to the present invention. After the fixed work is completed and the pile press-in / extractor self-propels, the guide portion 2
The auxiliary cylinder 21 and the pile gripping device 22 are operated while sliding the auxiliary cylinder 21 left and right along 0, and the existing piles 23 are first chucked to perform alignment, and then the cylinder device 17 is operated to perform the pile gripping device 18. By steel sheet pile 2
4 shows a state in which the press-fitting work is started while chucking No. 4, the existing piles 12 are firmly chucked by the existing pile clamps 13, and the press-fitting of the steel sheet pile 24 is advanced. As described above, in the auxiliary cylinder 21, the existing pile clamp 13 has the existing pile 1
Even when the second chuck cannot be performed, the existing pile 23
It has the effect of advancing the work by chucking the pile, and is effective when used for press-fitting or pulling-out work on a sloping ground.

The configuration and operation of the auxiliary press-fitting / pulling-out device for the pile press-fitting / pulling machine according to the present invention have been described above in detail. However, by installing the present invention in a self-propelled pile press-fitting / pulling machine, the following operational effects are brought about. be able to. That is, as compared with the conventional case where only the reaction force clamp is attached to the lower side of the base to perform the work, the work range can be greatly expanded.
That is, even if there are variations in the high bottom of the existing pile, it can be easily clamped by using the auxiliary cylinder, so that it is possible to work in a work environment where conventional reaction forces could not be taken, There is an advantage that work can be performed in a place where working conditions such as a sloping ground are not good. Moreover, if a pile chuck is secured using the auxiliary cylinder at the time of normal press-fitting / pulling-out, in addition to the conventional existing pile clamp, a reaction force clamping effect based on the auxiliary cylinder is added, and the reaction force becomes stronger, and It has a great effect of improving the work stability of the entire device, and is extremely useful when used in a self-propelled pile press-fitting / pulling machine.

[Brief description of drawings]

FIG. 1 is a side view showing a conventional static load type pile driver, FIG. 2 is a plan view of the same, and FIG. 3 is a side view showing a pile press-in / extractor equipped with an auxiliary press-in / out device according to the present invention. Figure 4 shows IV in Figure 3
FIG. 5 is a side view showing an example of the usage state of the present invention. 11 ... Base, 12, 13 ... Existing pile 13 ... Existing pile clamp, 14 ... Press-in / pull-out machine body 16 ... Elevating body, 17 ... Cylinder device 18, 22 ... Pile enclosing device 19, 24 ... Steel sheet pile, 20 …… Guide part 21 …… Auxiliary cylinder

Claims (1)

[Scope of utility model registration request] 1. A press-fitting / pulling-out machine main body disposed above a base having a clamp device for an existing pile, an elevating body attached to the side of the press-fitting / pulling-out machine main body so as to be movable up and down, and the elevating body is moved up and down. A pile press-in / pull-out machine having a cylinder device and a pile gripping device mounted below the lifting body, wherein a guide portion is formed at one end side of the base and at a portion facing the pile gripping device and the base. Then, an auxiliary cylinder device that is slidable in a direction perpendicular to the direction of movement of the press-fitting and extracting machine and that can be operated independently is attached to the guide portion, and an existing pile press-pulling / pulling-pulling device gripping device is attached to the auxiliary cylinder device. An auxiliary press-fitting / pulling-out device for a pile press-fitting / pulling machine.