JP4638358B2 - Drilling rig - Google Patents

Description

  The present invention relates to an excavation apparatus that can excavate a front excavation surface in a wide range and can reliably excavate even in a narrow place or a complicated excavation shape.

  There is a need for a drilling device that can excavate reliably, effectively and efficiently in a narrow and complex space with a complex excavation shape, where underground passages in the city are mixed with communication passages, structures and railways.

Conventionally, a boom type excavator is generally used, and it is necessary to secure traffic in a tunnel or the like, so excavation is performed in the remaining narrow space. However, a space for moving the machine is required, and the range of movement of the boom is limited.
JP-A-6-280476

However, the conventional excavator has the following problems.
(1) It is difficult to excavate the narrow corner between the face of the excavation cutter and the existing support work or the corner of the base of the tunnel.

(2) The excavation range of the excavation cutter is limited to the cutting depth of the cutter, and excavation beyond this cannot be performed.

(3) In the case of a hydraulic cutter, if there is a hard part in the natural ground, the hydraulic control is performed and the reliability of the excavation capacity tends to be inferior.

  Accordingly, an object of the present invention is to provide an excavation apparatus that can excavate a drilling surface in a wide range and can reliably excavate even in a narrow place or a complicated excavation shape.

In order to solve the above-described problems, a first invention of the present application includes a drilling means having a drilling shaft parallel to a drilling surface, and having a drilling blade on a peripheral surface of the drilling shaft, The swinging means has a swinging shaft that is parallel and has a swinging frame that swings around the swinging shaft as a fulcrum. Reversing means configured to be capable of rotating the excavating means with the reversing shaft as a fulcrum, the excavating means being disposed on one side of the swinging frame of the swinging means, and the swinging frame being reversed The shaft is in an eccentric position.When excavating, a part of the excavation surface is excavated first, and then the excavator is moved backward, and the excavating means is inverted by the reversal of the swing frame. drilling wherein the is arranged at a position capable of excavating the remaining excavation face There is provided an apparatus.

  Further, the second invention of the present application further comprises a moving means capable of relatively moving the excavating means, the swinging means and the reversing means along the excavation surface, according to the first invention of the present application. A device is provided.

  According to a third aspect of the present invention, there is provided the excavating apparatus according to the first or second aspect of the present invention, wherein the excavating means is operated by an electric direct connection type or a hydraulic motor. .

The present invention can obtain the following effects by means for solving the above-described problems.
(1) A large excavation area can be secured even if a small excavation cutter is used.
Since the excavation means can be reversed in the vertical direction of the excavation surface with the reversal shaft as a fulcrum, a large excavation area can be secured without using a large cutter, and work efficiency is high.

(2) The excavability is high even in narrow places and complex excavation shapes.
By rotating the excavating means with a rocking shaft configured in parallel with the excavating shaft as a fulcrum, it is possible to excavate a narrow place such as the left and right roots of the tunnel that cannot be reached by the movement of the excavator body.
Further, since the excavation means can move in the vertical direction and the front-rear direction with respect to the excavation surface, a complicated excavation shape such as between a natural ground and an existing support can be excavated, and the work efficiency is high.

(3) Improving excavation accuracy When using an electric directly connected motor type excavation cutter, the excavation accuracy is higher than that of a hydraulic excavation cutter, which contributes to improving the reliability of excavation work and shortening the construction period. To do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<1> Overall Configuration FIG. 1 is a perspective view of the excavator of the present invention.
The construction of the excavating apparatus according to the present invention includes an excavating means 111 having an excavating shaft 111 parallel to the excavating surface, and provided with an excavating blade on the peripheral surface of the excavating shaft 111, and swinging parallel to the excavating shaft 111. The oscillating means 2 has a shaft 221, and the oscillating means 2 is configured to be rotatable with the oscillating shaft 221 as a fulcrum. The reversing shaft 321 is orthogonal to the excavating axis. The digging means 1 is provided with at least a reversing means 3 configured to be rotatable.
Each means will be described in detail below.

<2> Excavation means 1
The excavation means 1 may be a cylindrical excavation cutter 11 or the like. The excavation cutter 11 has an excavation shaft 111 parallel to the excavation surface, and performs excavation by pressing the excavation cutter 11 around the excavation shaft 111 while pressing the excavation cutter 11.
The shape of the excavation cutter 11 is not limited to a cylindrical shape, and a conventionally known shape such as a weight shape, a trapezoidal shape, or a spherical shape can be used. Further, the rotation direction of the excavation cutter 11 is not particularly limited in both clockwise and counterclockwise directions.

<3> Oscillating means 2
As shown in FIGS. 1 and 2, the swinging means 2 includes a swinging frame 21 and a motor 22, and the swinging frame 21 is pivoted around a swinging shaft 221 that is a rotating shaft of the motor 22. It is supported, and it is comprised with the excavation means 1 so that rotation (oscillation) is possible right and left.
According to the swinging means 2, by swinging the excavating means 1 left and right, the excavator main body can be moved to excavate a narrow place where excavation is impossible, and the excavation work is promoted efficiently. be able to.

<4> Inversion means 3
As shown in FIG. 1, the reversing unit 3 includes a reversing frame 31 and a motor 32. The motor 32 has a reversing shaft 321 orthogonal to the excavating shaft 31, and the excavating means 1 is configured to be rotatable about the reversing shaft 321.
By reversing the excavating means 1, a large excavation area can be secured without extending the face even if a small excavation cutter 11 is used. In addition, the use of a small excavation cutter is highly convenient even in a narrow place or an excavation place having a complicated excavation shape.
The reversing direction of the excavating means 1 is not particularly limited in both clockwise and counterclockwise directions.

<5> Other Means The excavator of the present invention is provided with moving means that can move the excavating means 1, the swinging means 2, and the reversing means 3 along the excavation surface. As the moving means, a well-known moving / guide mechanism represented by, for example, a rail traveling method can be adopted according to the shape of the excavation surface.
In addition, the excavation apparatus of the present invention is provided with a known misalignment processing mechanism such as a shooter that captures misalignment and a belt conveyor that conveys misalignment, so that the misalignment generated by the excavation operation can be performed in parallel. desirable.

[Operation of the Excavator of the Present Invention]
Excavation work using the excavator of the present invention configured as described above will be described.
<1> First excavation (Fig. 3)
First, the excavation cutter 11 is rotated from a state where the excavation surface B and the excavation device are separated (FIG. 3A), the excavation device is moved forward, and the excavation cutter 11 is pressed against the excavation surface B for excavation. Work is performed (FIG. 3B).
<2> Second excavation (Fig. 4)
After excavating the excavation surface B to a predetermined depth, the excavator is once moved backward (FIG. 4A), and the reversing means 3 performs the reversing operation of the excavating means 1 (FIG. 4B).
Thereafter, the excavator is again moved forward to excavate the remaining excavation surface B (FIG. 4C).
<3> Narrow drilling (Figure 5)
In a narrow excavation place such as a corner of the excavation surface B, excavation work is performed using the swing of the excavation means 1 by the rocking means 2.
By combining the swinging of the excavating means 1 and the movement of the excavator main body that can be moved in the vertical direction, the horizontal direction, or the front-rear direction by the moving means, excavation work can be easily performed even in a narrow and complex excavation shape. Can do.

The perspective view of the excavation apparatus of this invention. The figure which shows rocking | fluctuation of the excavation means of this invention. The figure which shows the 1st excavation of the excavation device of this invention. The figure which shows the 2nd excavation of the excavation apparatus of this invention. The figure which shows narrow-place excavation of the excavation apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Excavation means 11 Excavation cutter 111 Excavation axis 2 Oscillation means 21 Oscillation frame 22 Motor 221 Oscillation axis 3 Inversion means 31 Inversion frame 32 Motor 321 Inversion axis A Ground mountain B Excavation surface

Claims (3)

A drilling means having a drilling axis parallel to the drilling surface, and having a drilling blade on the peripheral surface of the drilling shaft;
A swinging means having a swinging shaft parallel to the excavation shaft and configured to turn the excavating means by a swinging frame swinging around the swinging shaft;
A reversing means having a reversing axis perpendicular to the excavation axis, and configured to turn the excavating means about the reversing axis as a fulcrum,
The excavating means is disposed on one side of the swinging frame of the swinging means, and the swinging frame is in an eccentric position with respect to the reverse shaft,
When excavating, first excavate part of the excavation surface, then move the excavator backwards,
The excavation means is arranged at a position where the excavation means can be inverted by reversing the swing frame to excavate the remaining excavation surface .
Drilling rig. The digging means, the swinging means and the reversing means are further provided with moving means capable of moving along the digging surface,
The excavator according to claim 1. The excavation means is operated by an electric direct connection type or a hydraulic motor,
The excavation device according to claim 1 or 2.

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