JPH0344168B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pile driver for driving piles mainly into shallow seabeds and the like.

The type shown in Fig. 1 is known as a pile driver used when constructing a pier by driving piles in the shallow sea.

This pile driver has a rotating frame 3 rotatably mounted on a self-propelled truck 1 via a rotating mechanism 2, and a tower 6 equipped with a hammer 4 and a cap 5 is mounted on a pivot 7 to the rotating frame 3. Lifting cylinder 8
The tower 6 is constructed so that it can be raised and lowered freely using the pivot 7 as a fulcrum, and there is no problem when driving stakes vertically, but
When tilting the turret and driving the stakes diagonally, a blind spot would occur, making it impossible to tilt the stakes in any direction 360 degrees, leading to complaints about poor functionality.

This invention was made in view of the above circumstances, and its purpose is to provide a pile driver capable of driving piles at an angle in all directions, and its characteristics. Where,
A pile driving hole 15b is formed in the traversing truck 15, and a rotating frame 18 in which a through hole 18a is formed is placed on the upper part of the traversing truck, and the through hole is overlapped with the driving hole, so that it can freely rotate around the through hole. A tower for driving piles is attached to the above-mentioned revolving frame so that it can be raised and lowered.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIGS. 2 to 4 show an embodiment of the present invention. The reference numeral 11 shown in these figures is a traveling truck, and this traveling truck 11 runs on a support beam 13 laid on the head of a pile 12 that has already been driven. Two rails 14 are laid on the upper part of the traveling carriage 11 so as to be perpendicular to the running direction of the traveling carriage 11, and a traversing carriage 15 is disposed on the rails 14 so as to be freely movable. A part of the above-mentioned transverse bogie 15 protrudes forward in the running direction of the movable bogie 11. For this reason, a winch 16 is mounted on the rear of the transverse bogie 15 to maintain the balance of the transverse bogie 15, and 1
The rail 14 arranged on the rear side of
The wheel 15a and the rail 14 are configured to be engaged with each other to prevent the wheel 15a and the rail 14 from being separated in the vertical direction. Further, a driving hole 15b is formed in the protrusion of the traversing truck, and a plurality of turning wheels 1 are formed around the driving hole 15b.
7 are provided at appropriate intervals in the circumferential direction.
And, on the upper part of the protruding part of the above-mentioned transverse truck 15,
A rotating frame 18 is mounted. A through hole 18a is formed in this swing frame 18 so as to overlap with the driving hole 15b, and a swing rail 18b that engages with the swing ring 17 from the outside is attached to the lower part of the swing frame 18. ing.
With the above-described configuration, the rotating frame 18 can freely rotate around the casting hole 15b and the through hole 18a. Furthermore, the turret 1 is attached to the rotating frame 18.
9 is attached so that it can be raised and lowered by a pivot shaft 20 and a hydraulic cylinder for raising and lowering (extensible means for raising and lowering) 21. The turret 19 is provided with a cap 22 for supporting the head of the stake 12, and a hammer 23 for driving the stake 12 supported by the cap 22.
As is well known, the cap 22 and hammer 23 are movable up and down along a rail (not shown), and the pile 12 supported by the cap 22 is driven by lifting the hammer 23 to a predetermined height and dropping it. It is. On the other hand, a crawler crane 24 is mounted on the rear side of the traveling trolley 11. This crawler crane 24 suspends the pile 12 and transports it to the vicinity of the turret 19.

Next, the operation of the apparatus configured as described above will be explained.

First, the support beam 1 is placed on the head of the pile 12 that has already been driven.
3 is laid and the traveling trolley 11 is moved forward.
Further, along with the movement of the traveling carriage 11, the traversing carriage 15 is moved to arrange the tower 19 at a predetermined position. Next, the rotating frame 18 is rotated so that the turret 19 is positioned in the moving direction of the traversing truck 15 with respect to the through hole 18a, and the crawler crane 24
The stake 12 suspended from the turret 12 is inserted into the through hole 18a and attached to the turret 19. After that, the raising and lowering hydraulic cylinder 21 is expanded and contracted to set the driving angle of the pile 12, and the swing frame 18 is rotated to set the driving angle of the pile 12.
Set the direction of inclination. Then, the cap 22 is attached to the head of the pile 12, and the hammer 23 is used to attach the cap 22 to the head of the pile 12.
to be poured.

In addition, the rail 14 installed on the rear side of the traveling truck 11 and the wheels 1 of the traversing truck 15 in the above embodiment
The structure of 5a and the turning mechanism of the turning frame 18 are not limited to the structure shown in the drawings. Further, as the extending and contracting means for raising and lowering, a hydraulic cylinder 21 for raising and lowering as shown in the figure is used, but it is not limited to this, and a screw jack or the like may be used. Furthermore, although the rotating frame 18 is freely pivotable around the casting hole 15b and the through hole 18a,
The turning center of this turning frame 18 is the casting hole 15b.
It is not necessary to match the center of the through hole 18a.

In this way, the pile 12 can be driven in a desired direction and at a desired angle by inclining the tower 19 at an appropriate angle and rotating the rotating frame 18.

As described in detail above, according to the present invention, a pile driving hole is formed in the transverse truck, and a revolving frame having a through hole formed in the upper part of the horizontal truck so as to overlap with the pile driving hole is provided with the through hole. Since the turret for driving the piles is attached to the rotating frame so that it can be freely rotated, it has the advantage that the piles can be driven at a desired angle and direction.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram showing a state in which a pile is driven using a conventional pile driver, and Figs. 2 to 4 each show an embodiment of the present invention. A schematic configuration diagram showing a state in which a pile is driven using the pile driver of the present invention, FIG. 3 is an enlarged plan view of the main parts of the pile driver shown in FIG. 2, and FIG. 4 shows a part of the pile driver. FIG. 3 is a cutaway front view of the main part. 11... Traveling truck, 12... Pile, 15... Traversing truck, 15b... Casting hole, 18... Rotating frame, 18a... Through hole, 19... Turret, 20... Pivot, 21... Starting Hydraulic cylinder for tilting (extensible means for tilting), 23...hammer.

Claims (1)

[Claims] 1. A traveling truck 11, a transverse truck 15 provided on the traveling truck, which is provided with a pile driving hole 15b, and movable in a direction substantially perpendicular to the traveling direction of the traveling truck, and a through hole 18a. a swing frame 18, which is provided on a traversing truck with a through hole superimposed on the casting hole, and is rotatable around the through hole;
A turret 19 is provided with a hammer for driving a pile so as to be freely vertically movable, and is provided near the center of rotation of the above-mentioned revolving frame so that it can be raised and lowered up and down by a pivot, and a turret 19 for raising and lowering that rotates the turret 19 up and down about the pivot as a fulcrum. A pile driver characterized by comprising an expansion and contraction means.