JPH0782994A - Erector device in shield machine - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to pull the lifted segment sufficiently toward the rotating ring without increasing the size of the segment tilt jack. [Structure] A segment lifting frame 7 is attached to a rotary ring 6 rotatably provided in a shield body.
Is movably arranged along the radial direction of the frame 7, and a swinging frame 9 swingable around the guide rod 8 is attached to a guide rod 8 provided at the center of the frame 7.
A swinging jack 17 for swinging the swinging frame 9 is provided between the frame 7 and the frame 7, and the segment holding jack 19 and the segment tilting jack 21 of the segment clamp device 10 are attached to the swinging frame 9. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erector device for attaching a segment to an inner peripheral surface of a plurality of tunnels which are communicated with each other and which are excavated by, for example, a multi-type multi-face shield machine.

[0002]

2. Description of the Related Art Conventionally, an example of this type of shield machine is disclosed in Japanese Utility Model Publication No. 4-42397.
This is because a segment lifting frame is movably arranged along the radial direction of the rotary ring on a rotary ring that is rotatably provided in the shield body, and a segment is provided on a pair of left and right guide rods provided at the center of the frame. A segment clamp device including a holding jack and a segment tilting jack is attached.

In the above structure, the frame is moved in the radial direction so that the center tip of the frame and the tip of the segment tilting jack are connected to the segment, respectively, and the tip of the segment holding jack is brought into contact with the segment. After that, while moving the frame in the radial direction and hoisting the segment, by driving the segment tilting jack to tilt the segment by a predetermined angle, the segment is pulled toward the rotating ring, and then,
The rotating ring is rotated by a predetermined angle so that the hoisted segment faces a predetermined position on the inner circumferential surface of the tunnel, and then the segment is attached to the inner circumferential surface of the tunnel in a procedure substantially reverse to the above procedure.

[0004]

SUMMARY OF THE INVENTION In the above conventional configuration,
By tilting the segment with the segment tilt jack at a specified angle and pulling it toward the rotating ring, when the rotating ring is rotated, the segment does not collide with the inner peripheral surface of the tunnel or the equipment inside the tunnel. The larger the diameter of the tunnel, the larger the segment, and especially for the special segment installed at the boundary between the two tunnels, the larger the segment, the more the segment is pulled toward the rotating ring side. It is necessary to avoid collision with the equipment in the tunnel.

Therefore, it is conceivable to use a large segment tilting jack having a long expansion / contraction stroke. However, in this case, the segment tilting jack protrudes from the segment hoisting frame to the outside, and disturbs other devices in the shield body. There is a risk that Further, since there are two guide rods and the size of the clamp device is large, there is also a drawback that the segment cannot hit the clamp device and be sufficiently pulled toward the rotary ring side.

In view of the above problems, it is an object of the present invention to provide an erector device for a shield machine, which is capable of sufficiently pulling a lifted segment toward a rotating ring without enlarging the segment tilting jack. I am trying.

[0007]

To achieve the above object, according to the present invention, a segment lifting frame is arranged on a rotating ring rotatably provided in a shield body so as to be movable along the radial direction of the rotating ring. In the erector device in the shield machine in which the segment holding device and the segment clamping device having the segment tilting jack are disposed in the center of the frame, the guide rod is centered on the guide rod provided in the center of the frame. A swingable swinging frame is attached to the swinging frame, and a swinging jack for swinging the swinging frame is provided between the swinging frame and the frame, and the swinging frame holds the segment of the segment clamp device. It is characterized in that a jack and a segment tilting jack are attached.

[0008]

In the above structure, when the segment is mounted on the inner wall surface of the tunnel, the frame for hoisting the segment is moved radially outward, and the central tip of the frame and the tip of the segment tilting jack are connected to the segment. In addition, the tip of the segment holding jack is brought into contact with the segment, and then the frame is moved in the radial direction to suspend the segment, and the segment tilting jack is driven to tilt the segment by a predetermined angle. Pull toward the rotating ring.

When the rotating ring is rotated in this state and the segment collides with the inner wall surface of the tunnel or the like, the swinging jack swings the swinging frame by a predetermined angle to pull the segment sufficiently toward the rotating ring. Next, the rotating ring may be rotated by a predetermined angle to face the suspended segment to a predetermined position on the inner peripheral surface of the tunnel, and then the segment may be attached to the inner peripheral surface of the tunnel in a procedure substantially reverse to the above procedure.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a plurality of tunnels 1, 1 communicating with each other by a multi-type multi-face shield machine, which is an embodiment of the present invention, and an arc segment 5a and a special segment 5b are tunneled by an erector device 2. 1 shows a state of being mounted on the inner peripheral surface 1a of the No. 1 and the erector device 2 includes a rotating ring 6 rotatably provided in the shield body, and a segment lifting frame 7 arranged on the rotating ring 6. A swing frame 9 provided at the center of the frame 7 and a segment clamp device 10 provided on the swing frame 9. It should be noted that FIG. 1 shows only the shield machine provided in the tunnel 1 on the right side.

The segment lifting frame 7 is shown in FIG.
As shown in FIG. 5, the horizontal cross section is formed in a substantially U-shape, and is configured to be movable in the radial direction of the rotary ring 6 by a pair of left and right hydraulic cylinders 11, 11 provided on the rotary ring 6.

As shown in FIGS. 2 to 4, the swing frame 9 includes a pair of front and rear swing plates 9a and 9b, and a connecting rod 9c for integrally connecting the upper end portions of the both swing plates 9a and 9b. The two rocking plates 9a, 9b are guides installed at their lower ends between the front ends of the central projecting parts 12a, 13a projecting outward from the central parts of the front and rear plates 12, 13 of the frame 7. It is attached to the rod 8 and is formed so as to be swingable right and left around the guide rod 8.

A connecting pin 15 is provided between the projecting piece 14 projecting from the connecting rod 9c and the front swing plate 9a, and the swing frame side connecting pin 15 and the left and right end portions of the frame 7 are projected. The rocking frame 9 is provided between the frame side connecting pin 16 and the installed frame side connecting pin 16.
A pair of left and right rocking jacks 17, 17 for rocking is provided.

As shown in FIGS. 2 and 3, the segment clamp device 10 includes a guide rod 8 and a connecting rod 9c.
A pair of upper and lower cylindrical bodies 18a that are movably fitted to the
18b and a connecting plate 18c for integrally connecting the two tubular members 18a, 18b to each other. A movable frame member 18 is provided, and a pair of left and right segment holding jacks 19, 19 are outwardly disposed on both side edges of the connecting plate 18c. Upper cylinder 1 arranged in a V shape
A pair of right and left segment tilting jacks 21 and 21 are pivotally attached to a bracket 20 projecting from 8a. A segment contact member 22 is swingably pin-connected to the ends of the telescopic rods of the segment holding jacks 19 and 19, and a segment connecting bracket 23 is projectingly provided to the ends of the telescopic rods of the segment tilting jacks 21 and 21. A segment connecting bracket 24 is vertically provided on the lower cylinder 18b.

In FIGS. 2 and 4, reference numeral 26 denotes a segment position adjusting hydraulic cylinder provided between the connecting plate 18c of the movable frame 18 and the front swing plate 9a of the swing frame 9. The body 18 is connected to the guide rod 8 and the connecting rod 9c.
By moving the segments 5a, 5b clamped by the segment clamp device 10 in the anteroposterior direction, the positions of the segments 5a, 5b in the anteroposterior direction are finely adjusted.

In the above structure, when the special segment 5b is mounted on the boundary between the tunnels 1 and 1, the hydraulic cylinders 11 and 11 are extended to drive the frame 7 to extend.
Is moved radially outward to move the lower cylinder 18b of the movable frame 18
The bracket 24 and the bracket 23 of the segment tilting jack 21 are connected to the mounting portions of the special segment 5b, respectively, and the segment abutting member 22 of the segment holding jack 19 is brought into abutment with the special segment 5b. Clamp 5b.
Next, as shown by the solid line in FIG.
By moving the frame 1 in the reduction direction to move the frame 7 in the radial direction, the special segment 5b is lifted, and the segment tilting jack 21 is reduced in the driving direction.
The special segment 5b is tilted at a predetermined angle to rotate the rotary ring 6
Pull to the side.

When the rotary ring 6 is rotated in this state,
When the special segment 5b collides with the tunnel inner wall surface 1a or the like, the rocking jacks 17, 17 are driven to rock the rocking frame 9 to the right or left by a predetermined angle as shown by the phantom line in FIG. Then, the special segment 5b is sufficiently pulled toward the rotary ring 6 side. Next, the rotating ring 6 is rotated by a predetermined angle so that the suspended special segment 5b faces the boundary between the tunnels 1 and 1 as shown by the phantom line in FIG. Procedure for special segment 5
It is sufficient to attach b to the inner circumferential surface 1a of the tunnel.

The arcuate segment 5a can be attached to the inner surface 1a of the tunnel in the same manner.

[0019]

According to the present invention, when the segment tilting jack is driven to pull the segment toward the rotating ring side, when the rotating ring is rotated, the segment collides with the inner circumferential surface of the tunnel or the like. By driving the swinging jack to swing the swinging frame by a predetermined angle, the segment can be pulled closer to the rotating ring side and the segment can be prevented from colliding with the inner wall surface of the tunnel, etc. Since it is not necessary to increase the size of the segment tilting jack, there is no fear that the segment tilting jack will interfere with other devices in the shield body. In addition, the number of guide rods that were previously used was changed to one,
Since the clamp device is downsized by the reduced amount, the segment can be sufficiently pulled toward the rotating ring without being disturbed by the clamp device.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an erector device in a shield machine according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the device.

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a view taken along the line BB of FIG.

[Explanation of symbols]

 1 Tunnel 2 Erector device 5a Arc segment 5b Special segment 6 Rotating ring 7 Segment lifting frame 9 Swing frame 10 Segment clamp device 17 Swing jack 19 Segment holding jack 21 Segment tilting jack

Claims (1)

[Claims] 1. A segment lifting frame is movably arranged on a rotary ring rotatably provided in a shield body along a radial direction of the rotary ring, and a segment holding jack and a segment tilting jack are provided at a central portion of the frame. In an erector device in a shield machine having a segment clamp device provided with a swing clamp, a swing frame that is swingable about the guide rod is attached to a guide rod provided at the center of the frame, A swing jack for swinging the swing frame is provided between the frame and the frame, and the segment holding jack and the segment tilting jack of the segment clamp device are attached to the swing frame. Erector device in shield machine.