JPH01122829A - Steel sheet pile feed device - Google Patents

Abstract

PURPOSE:To enable the rapid, accurate, and safe feed of a steel sheet pile to a pile pressing-in pulling-out machine through a simple mechanism, by a method wherein a steel sheet pile holding mechanism is formed in front of a containing body for a plurality of steel sheet piles, and a moving mechanism to move the holding mechanism is mounted to a part of the containing body. CONSTITUTION:A steel sheet pile feed mechanism 1 and a containing body 2 for a plurality of steel sheet piles P are suspended from a rail 96 and are moved to the vicinity of a pile pressing-in pulling-out machine 90. During movement, a holding lever 41 is secured to the containing body 2, and the frontmost steel sheet pile P is nipped from both sides by means of holding bodies 44 to stabilize the sheet pile. When the steel sheet pile is moved to the vicinity of the pulling-out machine 90, the holding lever 41 is rotated clockwisely in a 90 deg. arc, the sheet pile P is vertically stably held by a holding mechanism 4, and a stopper 22 is closed to prevent slip down of the subsequent sheet pile P. A feed mechanism 1 is further moved forward, a moving mechanism 5 and the holding mechanism 4 are lowered to insert the sheet pile P in a chuck 91. When the sheet pile P is nipped by the chuck 91, the sheet pile P is released from hold, and after the moving mechanism 5 and the holding mechanism 4 are raised, the holding lever 41 is rotated to the front side of the containing body 2 and is restored to its initial state.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a device for supplying steel sheet piles to a pile press-in/extraction machine, and is particularly suitable for driving joint piles at pile driving sites where there are overhead obstacles such as under bridges. This invention relates to a feeding device that can feed efficiently.

(Conventional technology) When the steel sheet pile driving site has an obstacle above it, such as under a bridge, the distance between the bottom end of the bridge and the top of the existing pile is short, so the steel sheet pile of the regular length cannot be driven as is. cannot be set. For this reason, normally the steel sheet piles that should be press-fitted were cut into several pieces, and the pieces were added together while being poured to obtain the regular length of the steel sheet piles.

In other words, at a steel sheet pile driving site as shown in Figure 5,
First, a short steel sheet pile 100 cut to a predetermined length is loaded onto a work vehicle or a work boat, and then moved to a predetermined press-fitting location (81), and then lifted by a lifting device 101 and clamped by a chuck 104 of a pile press-fitting/pulling machine 103. .

Furthermore, if the site is on a river, land-based equipment cannot be used, so the steel sheet piles are fed into the chuck using a lifting device installed on a work boat or a lifting device attached to a pile press-in/extraction machine.

(Problems to be Solved by the Invention) The conventional steel sheet pile supply method as described above requires a device for transporting the steel sheet piles, such as a work boat, and a large-scale device for hoisting the steel sheet piles. Moreover, when lifting the steel sheet pile using a lifting device, in order to maximize the length of the steel sheet pile 100 with respect to the clearance L1 between the lower end of the bridge 102 and the top of the existing pile P1, as shown in FIG. It is necessary to lift the middle of the steel sheet piles 100 with the lifting device 101, and as a result, the steel sheet piles 100 are inclined and the posture of the steel sheet piles becomes unstable.

Therefore, when installing the steel sheet piles 100 into the chuck 104, the steel sheet piles 100 must be manually placed in the correct posture, which requires a large number of personnel to supply the steel sheet piles, and safe and quick work cannot be expected.

The present invention was made in view of this situation, and an object of the present invention is to provide a supply device that can quickly, accurately, and safely supply steel sheet piles to a pile press-in/extraction machine using a simple mechanism.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention constitutes a storage body for storing a plurality of steel sheet piles. The storage body has a holding mechanism for holding the steel sheet piles, and a moving mechanism for moving the holding mechanism is attached to a part of the storage body.

(Function) The storage body containing the steel sheet piles is moved to the vicinity of the pile press-in/extraction machine, and after the holding mechanism configured in front of the storage body holds the foremost steel sheet pile, this holding mechanism is horizontally rotated by the moving mechanism. Then, the steel sheet piles stored in the storage body are taken out and fed to the chuck.

(Example) Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a plan view of the steel sheet pile supply mechanism, Figure 2 is an enlarged side view of the same part, and Figure 3 is the holding mechanism of the steel sheet pile supply mechanism that rotates and supplies the steel sheet pile to the chuck of the pile press-in and puller. FIG.

The steel sheet pile supply mechanism 1 of this embodiment includes a storage body 2 that stands up and stores a plurality of steel sheet piles P cut into predetermined lengths, a holding mechanism 4 that holds the steel sheet piles P, and a storage body 2 that holds a plurality of steel sheet piles P cut to a predetermined length. It consists of a moving mechanism 5 for a steel sheet pile P, which is partially constructed.

The storage body 2 is open at the front, and forms an open section 21 from which the steel sheet pile P is taken out. The rear side plate 23 facing the open portion 21 is provided with a pressing mechanism 3 that presses the upright rows of steel sheet piles P from the rear and moves them forward.

This pressing mechanism 3 is expandable and retractable by a cylinder device,
It moves forward or backward depending on the number of steel sheet piles P.

Stoppers 22 are rotatably attached to the ends of both side plates 24 of the storage body 2 via attachment members. This stopper 22 prevents the steel sheet pile P from falling off from the storage body 2, and is rotated upward around the pin 22a when the steel sheet pile P is taken out.

The holding mechanism 4 for the steel sheet pile P is horizontally located in front of the storage body 2 and includes a holding rod 41 and a cylinder mechanism 42 constructed near the upper center of the holding rod 41.

At the tips of the rods 43 at both ends of the cylinder mechanism 42, clamping bodies 44 for clamping the steel sheet piles P are configured to be slidable with respect to the holding rods 41.

On the other hand, the storage body 2 and the holding mechanism 4 are connected by a moving mechanism 5.

This moving mechanism 5 horizontally rotates and transports the steel sheet pile P from the storage body 2 to the chuck, and moves up and down while holding the steel sheet pile P as necessary.
and moving cylinders 55 and 58.

A guide member 51 is fixed to the front end of one side plate 24 of the storage body 2. A guide groove 52 is cut into this guide member 51 .

The support body 53 has a flat plate-shaped member with a base portion slightly bent and a guide portion 54 formed at the tip of the base portion.
4 is slidably fitted into the guide groove 52 of the guide member 51. The other end of the support body 53 is rotatably attached to the end of the holding rod 41 via a pin 53a.

A fixed body 57 is provided protruding near the base of the support body 53. This fixed body 57 is a cylinder 55 for horizontal movement.
The end of the rod 56 of this cylinder 55 is rotatably attached to the end of the holding rod 41 via a pin 56a.

Note that the end of the cylinder 55 may be rotatably attached to the fixed body 57 with a pin.

A cylinder 58 for vertical movement is vertically fixed to a part of the guide member 51, and a rod 59 of this cylinder 58 is fixed vertically to a part of the guide member 51.
The supporting body 53 and the cylinder 55 can be moved up and down with respect to the guide member 51 by operating the cylinder 58 to fix the tip end to the back surface of the fixed body 57 .

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

As shown in FIG. 4, first, the steel sheet pile supply mechanism 1 is suspended by the suspension means 11 from a suspension member 96 such as a rail or wire provided on the underside of an upper obstacle 95 such as a bridge.

When the supply mechanism 1 is moved, the storage body 2 containing a plurality of steel sheet piles P is suspended from the rail 96 and moved to the pile press-in site near the pile press-in/extraction machine 90.

During this movement, as shown in FIG.
The rod 43 of the cylinder 42 is retracted, and the section of the foremost steel sheet pile P is held between both sides by the holder 44 to stabilize the steel sheet pile P.

When a predetermined position near the pile press-in/puller 90 is reached, the rod 56 of the cylinder 55 of the moving mechanism 5 is retracted, and the holding rod 41 is moved to the first position around the pin 53a at the tip of the support body 53.
Rotate 90 degrees clockwise in the figure (see Figure 3).

In this state, the steel sheet pile P is stably held vertically by the holding mechanism 4. Also, at this time, close the stopper 22,
Prevents subsequent steel sheet piles P from falling off.

In this state, the supply mechanism 1 is further advanced, the rod 59 of the cylinder 58 is retracted as necessary, the moving mechanism 5 and the holding mechanism 4 are lowered, and the steel sheet pile P is inserted into the chuck 91.

Chuck 9 of the pile press-in/extraction machine 90 of this embodiment shown in FIG.
1 is of the type that opens and closes at the front, so the steel sheet pile P
The maximum length can be obtained with respect to the clearance L between the top end of the existing steel sheet pile P1 and the lower end of the upper obstacle 95.

In a type of chuck that does not open and close at the front, the steel sheet pile P is transported to the upper part of the chuck, and then the rod 59 of the cylinder 58 is retracted to lower the moving mechanism 5 and the holding mechanism 4,
Insert the steel sheet pile P into the chuck.

When the chuck 91 clamps the steel sheet pile P, release the holding of the steel sheet pile P by the cylinder 42 of the holding mechanism 4, extend the rod 59 of the cylinder 58 as necessary to raise the moving mechanism 5 and the holding mechanism 4, Thereafter, the cylinder 55 is extended and the holding rod 41 is rotated toward the front side of the storage body 2 to return to the initial state.

At the same time, the stopper 22 is rotated upward to open it, the extrusion member 3 is extended to advance the steel sheet pile P, and the steel sheet pile P to be press-fitted next is held between the supports 44 of the holding rods 41.

In this way, the steel sheet piles P in the storage body 2 are sequentially supplied to the chuck 91 of the pile press-in/extraction machine.

(Effect of the invention) As described above, according to the present invention, steel sheet piles are stored in the storage body,
The first steel sheet pile among the stored steel sheet piles is held by the holding mechanism, and the moving mechanism moves the steel sheet pile and supplies it to the pile press-in/extraction machine, so it is a simple mechanism that can handle the clearance of one work site. It is possible to supply the maximum length of steel sheet piles, and the steel sheet piles can be rapidly and accurately continuously supplied to the pile press-in/extraction machine. Furthermore, this supply operation does not require any manpower and is not dangerous.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan view of the steel sheet pile supply mechanism, Fig. 2 is an enlarged side view of the same part, and Fig. 3 is a rotation of the holding mechanism of the steel sheet pile supply mechanism to FIG. 4 is a plan view showing a state in which steel sheet piles are being supplied to the chuck of a pile press-in/pulling machine, FIG. FIG. 1... Steel sheet pile supply mechanism 2... Storage body 4... Holding mechanism 5... Moving mechanism P... Steel sheet pile

Claims (1)

[Claims] A storage body that stores a plurality of steel sheet piles is configured, and a holding mechanism that holds the foremost steel sheet pile among the stored steel sheet piles is configured in front of the storage body, and a part of the storage body includes: A steel sheet pile supplying device that is equipped with a moving mechanism that moves the holding mechanism, moves the holding mechanism by the moving mechanism, and supplies the steel sheet pile held by the holding mechanism to a pile press-in/extraction machine.