JPH073065B2 - Pile work device and pile move method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a pile working device used for transporting various machines and materials in civil engineering work, and a pile moving method thereof.

(Prior Art) In various types of civil engineering work and the like, a pile work device capable of moving by itself on a pile of steel sheet piles, steel pipe piles, steel pipe piles, etc. is used.

In a conventional pile-up working device, for example, a pile press-in / pull-out machine, a clamp is integrally attached to the lower end of a saddle, and a radar mast for guiding vertical movement of a chuck that holds the press-in pile is connected to the saddle. This chuck cannot be moved below the clamp, so an attachment was required when self-propelled on the existing pile row.

The self-propelled principle of the existing pile-up working device on the existing pile row will be described with reference to FIG.

As shown in Fig. 15 (A), each clamp of the pile work device
45 is set on the existing piles P32 to P34, and the attachment G is attached to the chuck 40. Next, as shown in FIG. 15 (B), the entire working device is moved upward to move the saddle 41 by the width of the pile (FIG. 15 (C)). Next, as shown in FIG. 15 (D), each clamp 45 is lowered to grip the piles P33 to P35. After that, the attachment G holding the pile P31 is released, and the attachment G is lifted together with the chuck 40.
Return to the state of FIG. By repeating this operation, the pile work equipment was moving on the existing pile row.

Alternatively, the on-pile working device shown in FIG. 16 configures an auxiliary body 53 between a pair of clamps 52 for holding the pile P. On the lower surface of the auxiliary body 53, a moving body 55 with a sub-clamp 56 suspended is provided so as to be movable in the traveling direction. In this configuration, the clamp
The 52 and the sub-clamp 56 alternately move up, move forward, and move down to move the main body forward or backward.

(Problems to be solved by the invention) In the upward movement of these conventional pile work devices, one pile is gripped by the attachment and the whole main body is raised to a position where the lower end of the clamp is above the upper end of the existing pile. It was Therefore, when moving up, the position of the center of gravity is high and unstable, which is dangerous. In addition, an attachment must be attached to the chuck, which causes a problem that work efficiency decreases.

In addition, at the site where there is an obstacle above, such as when working below the bridge, the dimensions of the top of the pile and the bottom of the obstacle are limited.

In addition, the working device having a structure in which the clamps are widely opened on both sides of the pile during movement has a complicated mechanism and becomes large in size, and the working device shown in Fig. 16 has a complicated mechanism and operation, and the support must be moved upward. I won't.

Further, since the above-mentioned clamps and saddles are integrally configured, a crane having the ability to hoist the entire pile working device at the time of transportation and unloading, and a large transportation vehicle were required.

This invention solves the above problems, and by enabling the clamp to be detached from the pile work device, the pile work device can be separately transported and loaded and can be moved forward and backward on the pile row, and The purpose is to provide a method of moving the pile.

(Means for Solving the Problem) In order to solve the above problems, the present invention provides a work apparatus for mounting a pile, which is slidably and detachably attached to a front-rear engaging portion provided on a lower portion of a saddle with a clamp for gripping an existing pile. Characterized in that a main body having a lifting device mounted on the saddle is provided so as to be movable back and forth and rotatable, and a pile gripping means is provided at a front end of the main body. The method is to install a pile-up working device equipped with a lifting device on an existing pile row, and move the clamp detached from the saddle to the upper end of the pile in the traveling direction of the pile-up working device with the lifting device and grasp it. After that, the saddle is moved forward, the clamp is fitted to the front end of the saddle, and the pile working device is moved.

(Operation) Grasp the top of the pile with the clamp and install the work device on the pile on the pile. Then move the saddle forward to separate the saddle end clamp.

The gripping state of the separated pile of clamps is released and the lifting means lifts. The suspended clamp is moved to the upper end of the pile in the forward direction of the device and gripped. Then, the saddle is slidably fitted onto the upper portion of the clamp in order to move on its own.

(Example) The Example of this invention is described based on drawing.

FIG. 1 is a front view of a first embodiment of a pile working device, FIG. 2 is a plan view of the same, and FIG. 3 is a right side view of the same.

The working example 1 is a work apparatus 1 for piles for steel sheet pile, and a saddle 3
The clamp mechanism 2 is provided below, and the main body 5 is placed on the saddle 3.
Is movable back and forth and rotatable, and a chuck C is provided in front of the main body 5.

As shown in FIG. 4, the clamp mechanism 2 is moved to the grip body 7 by a moving claw.
8a and a fixed claw 8b are internally provided, and the steel sheet pile P is gripped by both claws by operating this moving claw 8a.

A slide portion 4 is formed on the upper part of the grip body 7, and the slide portion 4 is fitted in a fitting groove 6 described later and can be removed from the fitting groove 6.

The saddle 3 has a fitting groove 6 at the bottom in the front-back direction,
A main body 5 is mounted on the saddle 3 so as to be rotatable and slidable back and forth.

The main body 5 has a flat upper surface to form a space for mounting various materials and materials, a chuck C serving as a gripping means for a pile is vertically movably fixed to the front end, and a lifting device 9 is further provided to the rear end. It is provided.

Next, the pile moving method of the present invention will be described with reference to FIGS.

The pile work device 1 is clamped by the clamp mechanism 2 to hold the existing piles P3 to P5 and placed on the existing pile row. FIG. 6 is a front view showing the state, and FIG. 7 is a plan view.

Next, as shown in FIG. 8, the main body 5 is appropriately rotated on the saddle 3. In the rotated state, the holding state of the clamp 2a at the rearmost end holding the pile P1 is released, and the hoisting device 9 hoists.

As shown in Fig. 9, the suspended clamp 2a is piled in the traveling direction.
Move to P7 and grip this pile P7. Then, while moving the main body 5 shown in FIG. 9 forward by the width of the pile, the main body 5 is rotated in the direction of the arrow to return to the parallel state with the pile row.

Next, the pile P8 is gripped by the chuck C, and the saddle 3 is moved in the direction of the arrow in FIG. 10 by the width of the pile. By this movement, as shown in FIG. 11, the clamp 2b holding the pile P3 is separated from the saddle 3, and the clamp 2c holding the pile P6 is fitted to the saddle 3.

By repeating the above operation, the pile work device 1 moves on the existing row of piles P. In this embodiment, the forward direction (upward direction in the drawing) is illustrated, but the backward direction (downward direction in the drawing) is also possible in the same manner as above.

Further, since the pile working device 1 of the present embodiment has the chuck C, it is possible to continuously perform the press-fitting / pulling-out work of the pile while moving on the pile by self-propelling.

In addition, when moving, a large number of clamps may be mounted in advance on the upper end of the existing pile row, and the clamps may be sequentially slidably fitted to the saddle for movement.

As described above, in this embodiment, the slide portion 4 and the fitting groove 6 can be separated as necessary, so that the clamp mechanism 2 and the main body 5 can be separately hoisted and loaded, and a smaller crane or It can be transported and loaded and unloaded by a transportation vehicle.

Further, since the slide portion 4 of the clamp mechanism 2 and the fitting groove 6 of the saddle 3 move while sliding and fitting, it is possible to move quickly.

If necessary, the saddle 3 may be provided with a brake device for the slide portion 4.

Furthermore, the lifting device 9 can lift the pile P and the like in addition to the clamp mechanism 2 separated from the saddle 3.

FIG. 12 is a cross-sectional front view of a clamp mechanism used for a steel pipe pile or a pile work device for a steel pipe sheet pile. The clamp mechanism 32 includes a grip body 37 whose surface is formed so as to be in close contact with the inner circumference of the steel pipe sheet pile P, and a pressing body 37a attached to the grip body 37 via a cylinder mechanism 38.

A fitting groove 36 is formed in the front-rear direction on the upper portion of the grip body 37, and a slide portion 34 that slidably fits with the fitting groove 36 is formed on the lower portion of the saddle 33. Plural slide portions 34 and fitting grooves 36 may be formed. The rest of the mechanism of the work device for piles is the same as the work device for steel sheet piles described above, and therefore will be omitted.

FIG. 13 and FIG. 14 are partial cross-sectional front views of other embodiments of the fitting groove and the sliding portion of each of the above embodiments.

In the embodiment shown in FIG. 13, a cylinder mechanism 15 is provided under the saddle 13, and a fitting body 16 is provided at the end of the rod 15a of the cylinder mechanism 15.
The slide portion 14 which is fixed to the fitting body 16 and slidably fitted in the fitting body 16 in the front-rear direction is formed on the upper portion of the grip body 17. With the above structure, the cylinders 15 and 15 are operated to move the fitting bodies 16 and 16 to the left and right, and the position of the slide portion 14 is changed.

Thus, according to the present embodiment, the grip 17
The position can be adjusted in the left-right direction in FIG.

Further, in another embodiment shown in FIG. 14, a sliding portion 24 is formed in the front-back direction on the lower part of the saddle 23, while a cylinder mechanism 25 is provided on the upper part of the grip body 27, and a fitting body is provided at the end of the rod 25a of the cylinder mechanism 25. 26 is fixed, and the slide portion 24 is slidably fitted into the fitting body 26. The actions and effects of this embodiment are the same as the above, and the position of the gripping body 27 can be adjusted in the left-right direction in the drawing.

(Effect of the Invention) According to the present invention as described above, only the clamp can be removed from the working device, so that it is possible to easily carry and unload it without using a large crane or a transportation vehicle. Further, since there is no need for an attachment when moving on the existing pile row and it is not necessary to move the entire main body upward, there are effects such as safety and improved work efficiency.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view of a first embodiment of a pile working device, FIG. 2 is a plan view of the same, FIG. 3 is a right side view of the same, and FIG. FIG. 5 is an enlarged sectional side view of the clamp mechanism, FIG. 5 is a sectional plan view of the same portion, FIGS. 6 to 11 are operation explanatory views of the first embodiment, and FIG. 12 is a sectional front view of another embodiment of the clamp mechanism. FIG. 13, FIG. 13 and FIG. 14 are partial cross-sectional front views of other embodiments of the fitting groove, FIG. 15 is an operation explanatory view of a conventional example, and FIG. 16 is another example of the conventional example. 1 ... Pile work device, 2 ... Clamp mechanism 2a ... Clamp, 3, 13, 23, 33 ... Saddle 4, 14, 24, 34 ... Sliding part 5 ... Main body, 6, 36 ... Fitting Grooves 7, 17, 27, 37 ... Gripping body 8a ... Fixed claw, 8b ... Moving claw 9 ... Lifting means, 15, 25, 38 ... Cylinder mechanism 16, 26 ... Fitting body, P ... … Pile

Claims (2)

[Claims] 1. A clamp for gripping an existing pile is slidably and detachably fitted to a front-rear engaging portion provided at a lower portion of a saddle, and a main body having a lifting device mounted on the saddle is moved back and forth. An on-pile working device that is rotatably provided and has a gripping means for the pile at the front end of the main body. 2. A pile-up working device having a lifting device mounted on a saddle is installed on an existing pile row, and a clamp detached from the lower part of the saddle is moved by the lifting device to advance the pile-up working device. Moving to the upper end of the pile in the direction and gripping it, then moving the pile working device by moving the pile working device by advancing the saddle to fit the clamp to the front end of the saddle.