JP2587546Y2 - Pile driving device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile driving device for driving a pile into the ground.

[0002]

2. Description of the Related Art Conventionally, as an impact type pile driving machine, when a pile has a small diameter, an iron block is dropped to hit the pile and the pile is driven into the ground, or a pneumatic or hydraulic type is used. The hitting device is suspended by a wire, and the pile is driven into the ground by the hitting force and weight of the hitting device. When the pile has a large diameter, a diesel pile hammer is used in addition to the above.

[0003]

[Problem to be Solved by the Invention] In such a pile driving machine, if the hitting device is lightweight, the hitting force is small, and when the ground is hard, the hitting device cannot jump up due to the reaction force and perform the pile driving efficiently. . Therefore, in order to increase the impact force, it is necessary to increase the weight of the impact device itself. However, in recent years,
Piling machines are also heavily used in urban areas.If the weight of the hitting device of a pile driving machine used in an urban area is increased, the overall size of the pile driving machine becomes large, which hinders traffic during transportation and work. There is a problem that noise at the time of work also increases.

The present invention is intended to solve such a problem in a pile driving machine, in which a small and lightweight hitting device can efficiently perform a pile driving operation, reduce traffic obstruction during transportation and work, and reduce the work load. It is an object of the present invention to provide a pile driving device that reduces noise at the time.

[0005]

In order to solve the above problems, the pile driving device of the present invention has a main frame, a slide frame that can move up and down along the main frame, and can move up and down by being guided by the slide frame. A striking device, one end attached to the striking device, an upper rope body having the other end fixed to the main frame via an upper pulley fixed to the upper part of the slide frame, and one end attached to the striking device, and And a lower cable body having the other end fixed to the main frame via a fixed lower pulley.

[0006]

When the pile driving operation is performed, the pile driving device is installed at a predetermined position, and the slide frame is raised. At this time, the percussion device is also lifted up by the upper rope and rises. The moving distance of the striking device is two times the moving distance of the slide frame.
The distance to raise the slide frame is
Only half the length of the stake is required.

[0007] Then, the pile is set in the pile driving device, hit with a hitting device, and the pile is driven into the ground. When the slide frame is lowered as the pile penetrates into the ground, the striking device is pulled down by the lower rope and descends. The descending speed of the slide frame is １ ／ of the penetration speed of the pile.
At this time, since the hitting device is connected to the main frame and the slide frame via the upper and lower ropes, the reaction force of the hit is received not only by the hitting device but also by the entire pile driving device including the main frame and the slide frame. In addition, even if the impacting device itself is lightweight, the pile driving can be efficiently performed.

[0008] Therefore, the pile driving device can be miniaturized, traffic obstruction during transportation and work is reduced, and noise is reduced.

[0009]

FIG. 1 is a perspective view showing the construction of a pile driving device according to an embodiment of the present invention, FIG. 2 is a front view of a power shovel to which the pile driving device is attached, and FIG. FIG. 2 is a side view of the power shovel. In this pile driving device 1, a main frame 4 is mounted on a boom 3 of a power shovel 2 which is a mounting cart. The main frame 4 is provided with guide frames 11 on the left and right sides. A slide frame 5 is slidably mounted on the guide frames 11 along the guide frames 11, and between the main frame 4 and the slide frames 5. The slide frame 5 can be raised and lowered by expansion and contraction of the provided lifting cylinder 12.

A slider 14 which is guided by the slide frame 5 and slides is attached to the slide frame 5, and an impact device 15 for applying an impact to the pile to drive the pile.
Are fixed to the slider 14. An upper pulley 16 is fixed to an upper top plate 20 of the slide frame 5, and a lower pulley 18 is fixed to a lower bottom plate 21 of the slide frame 5. One end of an upper wire 17 is attached to an upper portion of the slider 14, and the upper wire 17 is connected to an upper pulley 16.
And the other end is fixed to the beam 22 of the main frame 4. One end of a lower wire 19 is attached to a lower portion of the slider 14, and the lower wire 19 is attached to the lower pulley 1.
8 and the other end is fixed to the beam 22 of the main frame 4. The tension of the upper wire 17 and the lower wire 19 can be adjusted by the adjustment bolt 23.

The hanging hook 2 is attached to the slider 14.
4 is provided, and the lower bottom plate 2 of the slide frame 5 is provided.
1 is provided with a pull-out hook 25. The power shovel 2 includes a lower traveling body 26 and an upper revolving superstructure 27. When performing a pile driving operation, the excavator 2 travels by itself on the lower traveling body 26 to rotate the upper revolving superstructure 27, and the pile driving device 1 Is set in place. Then, a stake is attached to the suspension hook 24, the lifting cylinder 12 is extended, and the slide frame 5 is raised. At this time, the slider 14 to which the striking device 15 is fixed is also lifted by the upper wire 17 and rises. Since the moving distance of the striking device 15 is twice as long as the moving distance of the slide frame 5, the distance for raising the slide frame 5 may be only １ ／ of the length of the pile.

When the pile has risen a predetermined distance, the pile is detached from the hanging hook 24, set on the hitting device 15, and hit by the hitting device 15, and the pile is driven into the ground. When the lifting cylinder 12 is reduced and the slide frame 5 is lowered as the pile penetrates into the ground, the striking device 15 is lowered by the lower wire 19 and lowered. The descending speed of the slide frame 5 is １ ／ of the penetration speed of the pile.

At this time, the striking device 15 is connected to the upper wire 17.
Is connected to the main frame 4 and the slide frame 5 via the lower wire 19 and the main body 4 and the slide frame 5. Therefore, even if the impacting device 15 itself is lightweight, it does not jump up, and can be efficiently piled. Therefore, the pile driving device 1 can be reduced in size, traffic obstruction during transportation or during work is reduced, and noise is reduced.

In this embodiment, since the pulling hook 25 is provided, the pile can be pulled out by attaching the existing pile to the pulling hook 25 and raising the slide frame 5.

[0015]

[Effects of the Invention] As described above, according to the present invention,
Pile driving can be performed efficiently with a small and lightweight hitting device,
It is possible to reduce traffic interference during transportation and work, and to reduce noise during work.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a pile driving device according to an embodiment of the present invention.

FIG. 2 is a front view of a power shovel to which a pile driving device is attached.

FIG. 3 is a side view of the power shovel to which the pile driving device is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piling device 2 Power shovel 3 Boom 4 Main frame 5 Slide frame 11 Guide frame 12 Elevating cylinder 14 Slider 15 Striking device 16 Upper pulley 17 Upper wire 18 Lower pulley 19 Lower wire

Claims (1)

(57) [Scope of request for utility model registration] 1. A main frame, a slide frame that can move up and down along the main frame, a hitting device that can be moved up and down by being guided by the slide frame, and one end attached to the hitting device. An upper rope body having the other end fixed to the main frame via a fixed upper pulley, and one end attached to the hitting device, and the other end being connected via a lower pulley fixed to a lower portion of the slide frame. A pile driving device including a lower rope fixed to a main frame.