JPS5812915Y2 - Self-propelled pile press-in device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a self-propelled pile press-in device.

BACKGROUND ART Conventionally, as a pile driving method capable of dealing with urban noise problems, etc., hydraulic press-in devices have been developed that use vibration-free and noise-free piles.

However, these devices generally lack quickness of operation.

In other words, you do not have to use a tow truck to lift the main body each time you finish press-fitting the sheet pile or H steel once and move it to the next position, readjust the angle and height, and repeat the work. must not.

The present invention was made to improve these points, and it is a self-propelled pile that can be moved smoothly and quickly, from change of setup to full-scale work, without using a large wrecker, and can immediately perform full-scale work. The purpose of the present invention is to provide a press-fitting device.

Next, an example will be described.

The overall configuration is such that a moving frame 2 slides on two longitudinal girders 1 arranged in parallel.

Moving frame Moving frame 2 has an upper rectangular upper frame 2 supported by four pillars 21.
2 and a rectangular bottom frame 23 at the bottom are connected, and a running wheel 3 is attached to the bottom of the bottom frame 23.

The moving wheels 3 allow the movable frame 2 to slide on the longitudinal girder 1.

The running wheel 3 may be a roller or a wheel with an ordinary axle attached to the lower frame 23, but handling is faster if it has a structure in which the running wheel 3 is pushed downward by a spring.

Below the moving frame 2, a reaction force receiving roller 32 is provided on the outer side below the running wheel 3.

This reaction force receiver is provided so that the roller 32 is in contact with the lower surface of the longitudinal beam 1.

Therefore, the movable frame 2 is attached to the longitudinal girder 1 from above and below at the lower portions of the four pillars 21, and can maintain an extremely stable state not only when it is stopped but also during movement.

On the other hand, inside the moving frame 2, the chucking device 4 is raised horizontally.
Provided so that it can be lowered.

As the chucking device 4, a known device such as a wedge or a hydraulic device can be used.

The four corners of this chucking device 4 and the upper frame 22 of the moving frame 2
The four corners of the frame are connected to each other by one vertical jack 5.

The longitudinal girder 1 consists of two square pillars or H steels arranged horizontally in parallel.

The width of the two is set to an interval that does not pose a problem in press-fitting the sheet pile 6.

Since the moving frame 2 is press-fitted, it is efficient to set the length of the vertical girder 1 to be approximately the same as the length that the moving frame 2 moves in one day.

A horizontal cylinder is installed inside the longitudinal girder 1.

This horizontal cylinder is provided with a horizontal rod 11 that can be moved in and out in parallel with the direction in which the pile press-in device advances.

That is, a total of four horizontal rods 11 are configured to be able to move in and out from both the front and rear ends of the longitudinal girder 1.

A cross beam 12 having a notch shape at the lower center is fixed to the tips of two horizontal rods 11 at the front and rear of the longitudinal beam 1.

That is, two horizontal rods 11 in the front and rear are connected and fixed by the cross beams 12, and each expands and contracts at the same time.

The notch at the lower center of the cross beam 12 is provided so that the sheet pile 6 protruding above the ground can fully pass through the notch when moving through the pile press-in device, and may be unnecessary depending on the structure.

A horizontal cylinder is installed inside the cross beam 12 so that an overhang rod 16 can move in and out in a direction perpendicular to the vertical beam 1.

A vertical cylinder 13 is fixed to the tip of this extending rod 16 so that the vertical rod 14 can move in and out downward.

That is, a total of four vertical rods 14 extend in and out from both ends of the two front and rear transverse beams by extension rods 16 to support or lift the entire pile press-in device.

Next, the operation will be explained.

Vertical beams 1 are placed on both sides of the position where the sheet pile is press-fitted in parallel to the press-fitting progress direction, and a movable frame 2 is placed on the vertical beams 1.

The vertical rod 14 is extended, the pile press-in device is once lifted, a sleeper 8, etc. is provided under it, and the vertical rod 14 is shortened again.

Therefore, the weight of the device is supported by sleepers 8 and the like.

Then, the previously driven sheet pile 6 and the longitudinal girder 1 are connected by a coupler 7.

Various known types of connectors 7 can be adopted, but a pin is inserted into a pin hole drilled at the upper end of the sheet pile 6 that has already been driven, and the upper part of the connector 7 connected by this pin is connected to the longitudinal girder 1. A method of fixing it above can also be adopted.

Next, the sheet pile 6 is hung into the movable frame 2 from above the upper frame 22, passed through the through hole of the chucking device 4, and is joined to the joint of the sheet pile 6 that has been erected vertically.

After the vertical jack 5 is sufficiently reduced, the sheet pile 6 is grabbed by the chucking device 4 and the vertical jack 5 is repeatedly expanded and shortened to be press-fitted.

Although the reaction force applied to the moving frame 2 when the sheet pile 6 is press-fitted is taken by the coupler 7 as described above, it is also possible to mount a heavy object on the longitudinal girder 1.

Short-distance movement of the movable frame After the sheet pile 6 is press-fitted, the movable frame 2 is slid on the stringer 1 by a distance corresponding to the width of the sheet pile 6, that is, just above where a new sheet pile is press-fitted.

This movement can be done by simply pulling it with a wire, by attaching a moving jack between the movable frame 2 and the stringer 1 and expanding and contracting it while changing the fixed part between the jack and the stringer 1. It is possible to widely employ known means, such as a method in which an infinite chain is provided from one end to the other and the movable frame 2 is moved by winding the chain.

During movement, the running wheels 3 are exposed from the bottom of the frame by elastic springs that are larger than the own weight of the moving frame 2, so movement on the stringer 1 is easy, and the reaction force receiving rollers 32 are attached to the stringer 1. It is safe because it is in contact with the bottom surface.

By the above method, moving frame 2 is moved to sheet pile 1.
, When the sheet pile 6 has been advanced by the width of two sheets, the sheet pile 6 is suspended, and the vertical jack 5 is repeatedly extended and shortened to complete the press-fitting.

Movement of the entire device The moving frame 2 press-fits the sheet pile while moving on the stringer 1, and when it reaches the end of the stringer 1, it is necessary to move each stringer 1, that is, the entire device.

Therefore, with the longitudinal girder 1 floating on sleepers, the front horizontal rod 11 is extended, and the rear horizontal rod 11 is further shortened.

That is, the longitudinal girder 1 itself does not move, and only the front and rear horizontal rods 11 move forward.

Next, the vertical rod 14 at the end of the horizontal rod 11 is extended to raise the entire device.

In this state, if the front horizontal rod 11 is shortened and the rear horizontal rod 11 is extended, the longitudinal girder 1 is relatively pulled forward and moves forward as a whole.

This completes the movement of the entire device.

In addition, in order to support the longitudinal girder 1, instead of using the sleepers 8, legs that are somewhat shorter than the vertical rods 14 may be fixed to the lower part of the longitudinal girder 1 from the beginning7, or outriggers that can be expanded and contracted by cylinders may be used. Alternatively, wheels, crawlers, etc. may be provided.

Laterally moving the entire device, keeping the vertical beam 1 and moving frame 2 afloat by engaging the rotating sleepers 8, and extending, for example, only the front and rear right extension rods 16.

All vertical rods 14 are then extended to lift the whole thing up.

In this state, if the overhang rod 16 which is currently in an extended state is shortened and the overhang rod 16 in the opposite direction is extended, the longitudinal girder 1
The moving frame 2 will move to the right.

Also, if the same operation as above is performed with only the front right-hand extension rod 16 extended, the previous number of the vertical beams 1 will be bent to the right.

By repeating this operation, the longitudinal girder 1 rotates with the rear as the center of the circle.

By combining the above-mentioned lateral movement and rotational movement, this device can be moved and adjusted in complex ways without the use of a tow truck.

Although the present invention has the above configuration, it can obtain the following effects.

(1) Since it is press-fitted using hydraulic pressure, piles etc. can be buried underground without vibration or noise.

(2) The moving frame, which has been press-fitted, is moved on the girder -L by wheels and is immediately set at the next press-fitting position, so the work is extremely quick.

Furthermore, no matter how far the moving frame moves, if the girders are properly aligned first, the vertical and horizontal directions of the moving frame will not be disturbed at all, and the next press-fitting operation can be started immediately.

(3) If the length of the vertical girder is determined according to the planned distance of the first press-fit, vertical movement can be done only once or twice a day in the morning.

(4) Since the longitudinal girder itself is self-propelled, there is no need to use a large lifting crane to change setups, making the work efficient, and there is no need to wait for a crane, making press-in extremely economical. It is a device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of a self-propelled pile press-in device according to the present invention. Figures 2a to 2e are explanatory diagrams of the construction order. 1: Vertical girder, 2: Moving frame, 11: Horizontal rod, 13: Vertical cylinder.

Claims (1)

[Scope of Claim for Utility Model Registration] In a pile press-in device in which a cylinder and a chucking device are installed in a movable frame on a vertical girder, a horizontal rod is telescopically fitted into the vertical girder, and the tip of the horizontal rod is A pile press-in device with a vertical cylinder and a movable frame that is movable on the vertical girder.