JP2572738B2 - Pile driving and pulling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static load type pile driving and pulling machine capable of driving a pile such as a steel sheet pile into the ground or pulling it out.

[0002]

2. Description of the Related Art Conventionally, a static load type pile driving and pulling machine which is usually used is provided with a reaction force pile gripper 1-2 for clamping an existing pile A at a lower portion as shown in FIGS. A guide frame 3 is erected above the base 1, and the guide frame 3
And a lifting device 4 for driving the lifting device 5 up and down, and a pile gripping device 9 mounted on the lifting device 5 and rotatable around a vertical axis. .

[0003]

However, in this type of pile driving and pulling machine, since the lifting device 4, for example, the hydraulic cylinder is provided near the guide frame 3, the lifting device is viewed from the side. Usually, the center line of the pile gripping device 9 does not coincide with the center line 4. Therefore, a distance x is formed between the upward reaction force F generated on the center line of the pile gripping device 9 from the ground at the time of pile driving and pulling and the center line of the lifting device 4,
The reaction force moment M where this distance x is the length of the arm in dynamics
There you action.

Therefore, even if the work pile B is initially set so as to be driven vertically with respect to the ground and the driving of the pile is started, the work pile B is moved rearward with an increase in the reaction force from the ground as the work progresses. There is a tendency to incline. In order to cope with this, as shown in FIG. 6, a slide table T for supporting the guide frame 3 so as to be tiltable by the fulcrum 12 is provided, and the tilting device 2 is provided between the slide table T and the guide frame 3.
Equipped, although the guide frame 3 is tilted forward because Ji preliminary are also contemplated pile driver for driving the operation target piles B, lift instrumentation
The operating fulcrum of the position 4 and the tilting fulcrum of the guide frame 3 are different
Therefore, under the condition that the lifting device 4 is fixed, the guide frame
There was a drawback that 3 could not be tilted .

Therefore, the present invention solves such a problem of the conventional pile driving and pulling machine and fixes the lifting device.
Tilt the guide frame at any angle
To improve workability, and a pile grabber
Changes in the vertical and horizontal directions can be minimized.
The purpose of the present invention is to provide a pile driving and pulling machine.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a pedestal having a reaction force pile gripping device for holding an existing pile on a lower side and a front and rear slidable front and rear direction on the pedestal. a slide table and a base constituted by a horizontal movement table movable on the longitudinal slide table in the lateral direction, the support arm which is formed integrally with the right and left moving table
A pin rotatably fitted in the front of the support arm,
Brackets supported by pins and standing on the brackets
Guide frame and both ends are left and right with the guide frame
The hinge is pivotally attached to the moving table to guide the bracket
An inclining device that inclines integrally with the frame, an elevating body mounted directly up and down along the guide frame, an elevating device that drives the elevating body up and down, and mounted on the elevating body to be rotatable about a vertical axis. It consists of a pile gripper coincides with the center line of the center line lifting device together with the guide frame is pivotable relative to the support arm a lipid emissions by the tilting device as the pivot center, the pin lifting body In the elevating movement of
Guide frame and lifting device by matching the core wire
Position, the lifting and lowering unit, and the positional relationship of the pile grabber are maintained, and
The pivot point of the vertical movement
To prevent the position of the
It has a configuration of a pile driving and pulling machine.

[0007]

[0008]

According to this pile driving and pulling machine, at the start of the work, the base is fixed above the existing pile group, the existing pile group is gripped by the reaction force pile grabber, and then the pile to be worked by the pile grabber. the sets pile driving tool position grab, the guide frame to the next desired angle
The pile driving operation is started, and the driving angle of the pile to be worked is determined. In this case, the lifting body is driven vertically along a direct guide frame, the guide frame blanking Rake'<br/> preparative on a front portion rotatably internally fitted to a pin of the support arms as the pivot center because it is rotatable, 該Ga id frame and the lifting device, the lifting member, the positional relationship of the pile gripping device is held <br/>, yet not support the weight of the guide frame by a pin
Therefore, a strong tilting device is not required.

[0009] Further, the bracket on which the guide frame is integrally erected by pivotally connecting both ends of the tilting device to the guide frame and the left / right moving table is rotatable about a pin. And the pin position, which is the point of action of the vertical movement due to the rotation of the guide frame with respect to the support arm, is prevented from changing in the vertical and longitudinal directions. Therefore, the amount of change of the pile grabber can be minimized.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a pedestal 1-1 having a reaction force pile gripping device 1-2 for holding an existing pile A on a lower side thereof.
A front-rear slide table 1-3 slidable in the front-rear direction on the pedestal 1-1, and a left-right movement table 1-4 slidable in the left-right direction on the front-rear slide table 1-3. The base 1 is formed by the pedestal 1-1, the reaction force pile gripping device 1-2, the front-back slide table 1-3, and the left-right moving table 1-4. A support arm 8 is formed integrally with the base 1 on the upper part of the left-right moving table 1-4.

On the other hand, the guide frame 3 is pivotally supported by a pin 6 rotatably fitted in the front of a support arm 8 and stands upright on a bracket 7 which can be tilted by a tilting device 2 such as a cylinder. . The tilting device 2 is hinged at both ends to the guide frame 3 and the left-right moving table 1-4 , so that the guide frame 3 can be
About the support arm 8. An elevating body 5 is mounted on the front side surface of the guide frame 3 so as to be able to move up and down directly along the guide frame 3.
The lifting device 4 is provided so as to protrude above the upper part. Further, a pile gripping device 9 that is rotatable around the vertical axis with respect to the elevating body 5 is provided below the elevating body 5.

The lifting device 4 comprises a hydraulic cylinder,
The lower end of the rod 10 protruding from the lifting device 4 is integrally fixed to the pin 6. The bracket 7 has a gate-like cross section, and the bridge-like bridge portion is connected to the stopper 1.
The bracket 7 projects forward from the lower side of the guide frame 3. Also this bracket 7
The pin 6 is pivotally mounted near its front end with its axis centered horizontally. Thus the guide frame 3 relative to the support arm 8
Even if the guide frame 3 rotates , the guide frame 3, the lifting device 4, the lifting member 5, and the pile gripping device 9 always maintain a fixed positional relationship.

The stopper 11 of the bracket 7 contacts the upper part of the support arm 8 and acts as a stopper when the guide frame 3 is inclined backward by a certain angle or more.

The operation of the pile driving and pulling machine according to the present invention having such a configuration will be described below. First, as shown in FIG.
The base 1 is placed above the existing pile A group, and the reaction pile grasping device 1
At -2, the group of existing piles A is grasped, and then the pile to be worked B is grasped by the pile grasping device 9 and set at the pile driving position. Next, by driving the tilting device 2 to tilt the bracket 7, the guide frame 3 is turned to a desired angle to determine the driving angle of the workable pile B, and the lifting device 4 is operated to raise and lower. The body 5 is driven downward to start the driving work of the workable pile B.

In the above-mentioned pile driving operation, the elevating body 5 is driven up and down directly along the guide frame 3, and the center line of the elevating device 4 and the pin 6 which is the center of rotation of the guide frame 3 and the pile grabber 9 , The positional relationship between the guide frame 3 and the lifting / lowering device 4, the lifting / lowering body 5, and the pile gripping device 9 is unchanged around the pin 6,
In addition, since the rotation of the guide frame 3 does not cause a change in the pin position, which is an action point of the vertical movement, in the vertical and front and rear directions, the rotation of the guide frame 3 causes the pile gripping device 9 to change in the vertical and front and rear directions. By minimizing the amount, it is possible to enhance the workability when determining the driving depth and the front / rear position when driving the pile. In addition, even if an abnormal reaction force occurs during the pile driving operation and the guide frame 3 is inclined backward, the stopper 11 can receive the inclination.

In recent years, there has been a tendency to increase the size of piles to be worked and to diversify attachments. However, in the present invention, since the lifting device 4 is provided so as to protrude above the lifting body 5, it is more difficult. It has the advantage that powerful lifting devices and other related accessories can be mounted interchangeably.

According to the present invention, as shown in FIG. 4, the main body is lifted while holding the work pile B, and the main body is moved to and fixed to an adjacent pile. There is an advantage that a hanging operation using another machine is not required. Although the operation at the time of driving the work pile B has been mainly described above, the operation can be performed based on substantially the same operation at the time of pulling out the pile.

[0018]

As described in detail above, in the pile driving and pulling machine according to the present invention, the elevating body is driven up and down directly along the guide frame, and the guide frame is tiltable by the tilting device. pair to the support arm above
And a pivotable centering on rotatably internally fitted to a pin, even guide frame and the lifting device the guide frame is rotated, the lifting body, the pile gripping can hold the positional relationship between the device .

[0019] is freely further rotated around both ends the guide frame by the hinge pivotally connected to the guide frame and the base side is a bracket erected integrally pins tilting device, guiding the pin relative to the support arm Frame
Since the center of rotation and the center line of the elevating movement coincide with each other, the pin position, which is the point of action of the elevating body, does not change in the vertical and longitudinal directions due to the rotation of the guide frame. to the vertical and minimizing the changes in the longitudinal direction, moreover the support arm only by the action of tilting device
Thus, a pile driving and pulling machine which can rotate the guide frame and has high workability is provided.

[Brief description of the drawings]

FIG. 1 is a left side view showing one embodiment of a pile driving and pulling machine according to the present invention.

FIG. 2 is a plan view of the pile driving and pulling machine.

FIG. 3 is a front view of the pile driving and pulling machine.

FIG. 4 is a left side view showing an operation example of the pile driving and pulling machine according to the present invention at the time of self-running.

FIG. 5 is a left side view showing an outline of a conventional pile driving and pulling machine.

FIG. 6 is a left side view showing a main part of a conventional improved example in FIG. 5;

FIG. 7 is a plan view of the pile driving and pulling machine shown in FIG. 5;

[Explanation of symbols]

1-1 ... Pedestal 1-2 ... Reaction force pile gripping device 1-3 ... Front and rear slide table 1-4 ... Left and right moving table 2 ... Tilt device 3 ... Guide frame 4 ... Lifting device 5 ... Lifting body 6 ... Pin 7 ... Bracket 8 ... Support arm 9 ... Pile gripping device 10 ... Rod 11 ... Stopper

Claims (1)

(57) [Claims] 1. A pedestal having a reaction force pile gripping device for holding an existing stake on a lower side, a front-rear slide table slidable on the pedestal in the front-rear direction, and a left and right movable on the front-rear slide table in the left-right direction. a base constituted by a moving table, a support arm formed integrally with the right and left moving table
A pin rotatably fitted in the front of the support arm,
Brackets supported by pins and standing on the brackets
Guide frame and both ends are left and right with the guide frame
The hinge is pivotally attached to the moving table to guide the bracket
An inclining device that inclines integrally with the frame, an elevating body mounted directly up and down along the guide frame, an elevating device that drives the elevating body up and down, and mounted on the elevating body to be rotatable about a vertical axis. It consists of a pile gripper coincides with the center line of the center line lifting device together with the guide frame is pivotable relative to the support arm a lipid emissions by the tilting device as the pivot center, the pin lifting body In the elevating movement of
Guide frame and lifting device by matching the core wire
Position, the lifting and lowering unit, and the positional relationship of the pile grabber are maintained, and
The pivot point of the vertical movement
To prevent the position of the
A pile driving and pulling machine.