JP3721461B2 - Parent-child shield machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a parent-child shield machine.
[0002]
[Prior art]
Conventionally, in a parent-child shield machine, a slave machine cutter is arranged coaxially with the master machine cutter in the center, and the center line of the tunnel excavated by the slave machine and the tunnel excavated by the master machine coincide.
[0003]
However, in the conventional parent-child shield machine, it has been impossible to excavate the pipe top joint and the pipe bottom joint tunnel as shown in FIGS.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a parent-child shield machine in which the center lines of excavation holes excavated by the parent machine and the child machine are different.
[0005]
[Means for Solving the Problems]
The present invention relates to a parent-child shield machine in which a slave unit body is disposed in a master unit and includes a master unit cutter head composed of a slave unit cutter head and an outer cutter, and the slave unit cutter head is eccentric with respect to the master unit cutter head. The rotation center of the main machine cutter head and the child machine cutter head is made different so that the rotation shafts of the parent machine cutter head and the child machine cutter head are shared by the rotation drive shaft, and the rotation drive shaft is used as the parent machine cutter head. characterized by being movably configured to be positioned to the rotation center of the handset cutter head and, parents shield machine, or, in the parent shield machine, slidable handset skin plate to the outer periphery of the child device body When the child machine digs up, the child machine skin plate is slid to the back surface of the child machine cutter head.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0007]
<B> Outline of the parent-child shield machine For example, as shown in FIG. 1, the parent-child shield machine includes a main body 20 installed in the main body skin plate 13 and uses the main machine 10 to excavate a drilling hole, The cordless handset 20 is pulled out from the machine 10, and excavation holes are excavated using the cordless handset 20 to form different types of drilling holes.
[0008]
The master unit 10 digs up with the master unit propulsion jack 14, and the slave unit 20 digs up with the slave unit propulsion jack 25. In addition, although the structure generally used for shielding machines, such as piping and an elector, is omitted, naturally, it is built in, for example, a screw conveyor in the earth pressure type, a sending and discharging mud pipe in the muddy water type, etc. Is installed.
[0009]
<B> Master Machine and Slave Machine Cutter Head The master machine cutter head 11 comprises a slave machine cutter head 21 and an outer cutter 12 disposed on the outer periphery thereof, as shown in FIGS. . The rotation center A of the parent machine cutter head 11 and the rotation center B of the child machine cutter head 21 are eccentric, and the rotation axis is shifted by the distance e.
[0010]
When the parent machine cutter head 11 is rotated, the child machine cutter head 21 and the outer cutter 12 are connected by, for example, a connecting jack 42, and the child machine cutter head 21 and the outer cutter 12 are rotated together. On the other hand, when the child machine cutter head 21 is rotated, for example, it is released from the connection by the connection jack 42 and only the child machine cutter head 21 is rotated.
[0011]
<C> Rotation Drive Shaft The rotation drive shaft 30 that rotates the cutter head can be used in common in the parent device 10 and the child device 20. For example, as shown in FIGS. 3 to 4, a guide 22 is provided on the back surface of the child machine cutter head 21, and the guide 22 is fitted into the guide groove 31 of the rotary drive shaft 30. The rotation drive shaft 30 is movably attached to the back surface of the child device cutter head 21 by moving means such as second moving jacks 41 and 41 attached to the back surface of the child device cutter head 21. The rotation drive shaft 30 is rotated by a cutter drive motor 32 via a cutter gear 36, for example.
[0012]
One side of the second moving jacks 41, 41 is connected to the back surface of the child machine cutter head 21, and the other is connected to the tip of the rotary drive shaft 30. The second moving jacks 41, 41 have a structure capable of sliding a bearing hole 28 provided in the rotary drive shaft 30. A second moving jack slide seal 29 is provided at the inlet of the bearing hole 28, and the piping of the second moving jack 41 is provided. Prevent infiltration of earth and sand water into the section.
[0013]
In order to rotate the parent machine cutter head 11, the second movable jacks 41, 41 are extended so that the center of the rotation drive shaft 30 is positioned at the rotation center A of the parent machine cutter head 11. On the other hand, in order to rotate the child machine cutter head 21, the second moving jacks 41, 41 are contracted so that the center of the rotation drive shaft 30 is positioned at the rotation center B of the child machine cutter head 21.
[0014]
The rotation drive shaft 30 is rotatably held by a holding material 33, and the flange portion 34 of the holding material 33 is fixed to the flange receiver 35 so as to be movable. For example, the holding member 33 can be moved and fixed between the rotation shaft of the parent machine cutter head 11 and the rotation shaft of the child machine cutter head 21 by the first moving jack 40. A brim seal 37 is provided between the partition wall 24 and the brim part 34 to prevent intrusion of earth and sand water from the sliding part into the machine.
[0015]
<D> Handset Skin Plate The handset skin plate 23 is movably attached to the partition wall 24. For example, when the slave unit 20 is dug, the slave unit skin plate 23 is lowered rearward from the partition wall as shown in FIG. 1, for example, and when the slave unit 20 is excavated, the slave unit cutter head 21 is placed as shown in FIGS. It slides near the back.
A master unit slide seal 27 is provided between the master unit 10 and the slave unit skin plate 23, and a slave unit slide seal 26 is provided between the slave unit 20 and the slave unit slide seal 23 to prevent intrusion of earth and sand water from the face. .
[0016]
Below, operation | movement of a parent-child shield machine is demonstrated.
<A> The main unit excavation rotation drive shaft 30 is aligned with the rotation center A of the main unit cutter head 11 as shown in FIG. 1, and the cutter drive motor 32 is driven to operate the main unit cutter head 11, that is, the sub unit cutter head. 21 and the outer cutter 12 are rotated together to perform a normal shield machine excavation operation.
[0017]
<B> After the digging of the child machine, for example, the digging of the parent machine 10 is completed, the rotary drive shaft 30 is moved from the rotation center A of the parent machine cutter head 11 to the center B of the child machine cutter head 21. Therefore, for example, the first moving jack 40 is extended and the collar portion 34 of the holding member 33 is slid upward with respect to the collar receiver 35, and the second moving jacks 41 and 41 are contracted so that the guide groove 31 of the rotary drive shaft 30 is formed. Slide upward along the guide 22.
[0018]
Further, the slave unit skin plate 23 is slid to the back surface of the slave unit cutter head 21. Moreover, the connection jack 42 which connects the subunit | mobile_unit cutter head 21 and the outer periphery cutter 12 is open | released, and connection is cancelled | released. The subunit | mobile_unit 20 rotationally drives the subunit | mobile_unit cutter head 21 with the cutter drive motor 32, builds the segment 50, for example, starts from the main | base station 10 like FIG.
[0019]
In this way, by shifting the center of rotation of the parent machine cutter head 11 and the child machine cutter head 21, the center lines 51, 51 are formed as in the top joint and the bottom joint as shown in FIGS. Different tunnels can be built.
[0020]
【The invention's effect】
The present invention can obtain the following effects.
<I> It is possible to easily construct pipe top joint and pipe bottom joint.
<B> Arbitrary tunnel joints can be obtained by changing the eccentric distance between the central axes of the master machine cutter head and the slave machine cutter head.
<C> Since all operations can be performed in the mine, operations can be performed safely.
[Brief description of the drawings]
[Fig. 1] Configuration diagram of the parent-child shield machine [Fig. 2] Front view of the main machine cutter head [Fig. 3] Plan view of the mounting position of the cutter head and the rotary drive shaft [Fig. 4] Mounting position of the cutter head and the rotary drive shaft [Fig. 5] Explanatory diagram of preparation for starting excavation of the slave unit [Fig. 6] Explanatory diagram at the time of excavation of the slave unit [Fig. 7] Diagram showing the top joint [Fig. Explanation of]
DESCRIPTION OF SYMBOLS 10 ... Master machine 11 ... Master machine cutter head 12 ... Perimeter cutter 13 ... Master machine skin plate 14 ... Master machine propulsion jack 20 ... Slave machine 21 ... Slave machine cutter head 22 ... guide 23 ... slave unit skin plate 24 ... partition 25 ... slave unit propulsion jack 26 ... slave unit slide seal 27 ... master unit slide seal 28 ... bearing hole 29 ··· Second moving jack slide seal 30 ··· Rotation drive shaft 31 ··· Guide groove 32 · Cutter drive motor 33 · Holding material 34 · · · flange portion 35 · · · flange receiver 36 ··· Cutter gear 37 ... collar part seal 40 ... first moving jack 41 ... second moving jack 42 ... connecting jack

Claims (2)

In the parent-child shield machine equipped with the main unit cutter head consisting of the sub unit cutter head and the outer cutter, the main unit is arranged in the main unit.
The child machine cutter head is arranged eccentrically with respect to the parent machine cutter head so that the rotation centers of the parent machine cutter head and the child machine cutter head are different,
The rotation axis of the main machine cutter head and the slave machine cutter head is shared by the rotary drive shaft,
The rotational drive shaft is configured to be movable so as to be positioned at each rotation center of the parent machine cutter head and the child machine cutter head ,
Parent-child shield machine.   The parent-child shield machine according to claim 1, wherein a slidable child machine skin plate is disposed on the outer periphery of the child machine body, and when the child machine advances, the child machine skin plate is slid to the back of the child machine cutter head. A parent-child shield machine.

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