JP2002097900A - Segment erector device and shield machine using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a segment erector device capable of easily assembling heavy segments for different cross section, and to provide a shield machine using this segment erector device. SOLUTION: In this erector device for shield machine for assembling segments by turning a turning ring supporting the whole of the device, a pair of elevator frames are provided in right and left on the turning ring, and a beam-like frame is stretched between these pair of elevator frames so as to form a nearly arch shape over the whole of the frame. The whole of the arch-like frame can be slid in the radial direction of the turning ring, and a segment holding device is provided on the beam-like frame freely to be slid and bent in right and left. The shield machine is provided with plural erector devices arranged in parallel with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment erector device for assembling segments of a tunnel having an irregular cross section excavated by a shield machine or the like.

[0002]

2. Description of the Related Art Recently, there has been an increasing demand for tunnels having an irregular cross section other than a circular shape. In the work by a shield excavator for assembling segments while excavating a tunnel, an erector that can easily assemble segments for irregular cross sections is used. Requested. An example of an erector that has responded to such a demand is disclosed in Japanese Patent Application Laid-Open No. 9-235999. The same is described with reference to FIG.

As shown in FIG. 45, two left and right erectors 20A and 20B having the same structure are installed on a shield body 2. The erector 20A includes an erector ring 21, an erector arm 26, a pressing beam 28, and a swing arm 31. The electoring ring 21 is guided by a guide roller 22 arranged along the inner periphery of the shield body 2. The elector arm 26 is provided with the
It is provided at a position on one side with respect to the upper turning center so as to protrude rearward of the shield body 2. The pressing beam 28
While being guided by the guide rod 29, it is slid in a substantially tangential direction with respect to the circumference of the elector ring 21 by a pressing jack (not shown) and is prevented from rotating. The oscillating arm 31 is swingably attached to the tip of the pressing beam 28 via a oscillating pin 32.
The tilt of the eclector ring 21 with respect to the pressing beam 28 can be changed in a plane perpendicular to the axial direction of the erector ring 21. The swing arm 31 is provided with a segment gripping portion 38 for gripping a segment, which is slidable back and forth.

FIG. 45 shows a state in which the segment holding portion 38 holds and lifts the lower key segment 1c as an example. The segment 1c is assembled by rotating the erector ring 21, sliding the segment grip 38 back and forth, and transporting it to a predetermined assembly position by the pressing jack and the attitude control jack 33.

[0005]

However, in the erector described in Japanese Patent Application Laid-Open No. 9-235999, the weight of the eleector such as the segment weight and the segment gripper / press beam is all one support member. It is a so-called cantilever type structure that is supported by an (elector arm), and it is difficult to apply it to a heavy segment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a segment erector device capable of easily assembling a heavy segment for a modified cross section, and a shield machine using the same. And

[0007]

In order to achieve the above object, a first aspect of the present invention is a shield excavator erector device for assembling segments by turning a swivel ring that supports the entire device. A pair of left and right elevating frames is provided on the swivel ring, and a beam-like frame is bridged between the pair of elevating frames, so that these frames are substantially gate-shaped as a whole. Is slidable in the radial direction of the swivel ring as a whole, and has a configuration in which a segment gripping device is provided on the beam-shaped frame so as to be slidable left and right and bendable left and right.

According to the first aspect of the invention, the segment erector device has a high rigidity because the frame is formed in a gate shape by the pair of left and right lifting frames and the beam member connecting the pair of left and right lifting frames. . And, the segment weight is such that the structural member of the erector is flexed during the segment assembly because it is stably supported by the left and right lifting frames,
Hard to vibrate. Therefore, it can be applied to the assembly of a heavy segment. In addition, since the segment holding device can move left and right on the beam member and can swing right and left, the degree of freedom of the segment holding posture is large. Therefore, it is possible to cope with assembling of a part that is difficult to assemble with a normal erector, such as a segment at a corner of a tunnel with a rectangular cross section. In addition, even if the segment thickness is large in the irregular-shaped section tunnel and the segment layout space during segment assembly is greatly limited, the flexibility of the segment holding posture can be taken, so that the assembly can be performed without interfering with the existing segment. Can be.

According to a second aspect based on the first aspect, the segment gripping device comprises a left-right sliding frame provided on the beam-like frame so as to be slidable left and right, and a left-right bending frame on the left-right sliding frame. It comprises a rolling bending frame provided, and a segment gripping portion mounted via a frame slidably provided on the rolling bending frame to the left and right.

According to the second aspect of the present invention, the left and right sliding frames can move left and right with respect to the beam frame, and the rolling bent frame can be rolled and bent with respect to the left and right sliding frames. . Therefore, the segment can be easily set to a posture suitable for the assembly place. Further, since the frame which can be freely slid left and right can be moved on the rolling bending frame and fine positioning of segments can be easily performed, assembling efficiency is improved.

A third invention is a shield machine in which a plurality of the segment erector devices according to the first or second invention are arranged in parallel.

According to the third aspect of the present invention, it is possible to assemble a segment of a tunnel having a double circular cross section or a rectangular cross section having a large ratio of vertical and horizontal sides, and to use a normal erector such as a middle pillar of the tunnel having an irregular cross section. Thus, it is possible to assemble a part that is difficult to assemble. In addition, the center pillar can be assembled by either of the adjacent segment elector devices, and the segment assembling order can be flexibly set, so that the assembling efficiency is improved.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment according to the present invention will be described.
This will be described with reference to the drawings. In the present invention,
Hereinafter, unless otherwise specified, the left-right direction refers to the left-right direction as viewed from behind the shield machine, and the front-rear direction refers to the longitudinal direction of the tunnel. In addition, movement in the direction along the rotation direction of the swivel ring of the erector device at the time of segment assembly is referred to as movement in the swivel direction. FIG. 1 is a cross-sectional view of an erector according to an embodiment of the present invention as viewed from behind a shield machine 40. FIG. 2 is a Z view of FIG. 2 of the left erector 41 and the right erector 42 having the same structure
A base erector is installed. Left and right erectors 41, 4
2 have the same structure, only the components of the left erector 41 will be denoted by reference numerals and will be described as representative.

The left erector 41 includes a swing ring 43, a pair of left and right lifting frames 44, a front and rear sliding frame 45, a left and right sliding frame 46, a rolling bent frame 47, a left and right fine turning frame 48, and a segment grip portion 49. It has as an element. The swivel ring 43 supports the weight of each component and segment of the erector device, and is swingably supported on a support frame 40 a of the shield machine 40 via a bearing.

On the left and right of the turning ring 43, a turning ring 4 is provided.
3, one lifting frame 44 slidable in the radial direction is mounted one by one. A front-rear sliding frame 45 is provided between the lower portions of the lifting frames 44, 44.
The front and rear sliding frame 45 is attached to the pair of elevating frames 44 and 4.
It has a structure as a beam spanned between four. That is, a pair of left and right lifting frames 44, 44 and a front-rear sliding frame 45.
Constitute a substantially gate-shaped frame, which is slidable in the radial direction of the swivel ring 43 as a whole (hereinafter, the movement of the erector in this direction is referred to as the movement in the elevating direction). Do). Further, the substantially gate-shaped frame is formed so that its corners do not protrude, so as not to interfere with the existing segments when the frame is turned.

A left-right sliding frame 46 is slidably mounted on the front-rear sliding frame 45 as a beam of the portal frame. Further, a rolling bending frame 47 is mounted on a support shaft 61 protruding rearward from the left and right sliding frame 46.
Can be bent (swinged) left and right around the support shaft 61. (Hereinafter, the movement of the rolling bending frame in this direction is referred to as rolling bending.) On the rolling bending frame 47, a left / right fine turning frame 48 that is slidable about several tens mm in the left / right direction is further mounted. Here, this frame is simply given the name "fine left / right turning" in the sense that the turning direction is finely adjusted at the time of assembling the segment, and does not have a structure capable of actually turning. With this fine adjustment mechanism,
Fine positioning of the segments can be easily performed. As described above, the left erector 41 has six degrees of freedom of turning, lifting and lowering, front and rear, left and right, rolling bending, and right and left fine turning.

Referring to FIGS. 3 to 6, the structure of the erector including the actuator for driving each sliding portion will be described in more detail. FIG. 3 is an enlarged view of FIG. 2 for explaining in more detail. As shown in FIG. 3, the slewing ring 43 is attached to the inner ring 50b of the slewing bearing in which the outer ring 50a is attached to the shield machine 40, and the teeth formed inside the inner ring 50b are attached to an actuator (not shown). Mesh with the pinion gear. The elevating frame 44 is attached to an elevating member 51 b that slides on an elevating guide 51 a mounted on the swivel ring 43, and an elevating cylinder 52 that elevates the elevating frame 44 with respect to the swivel ring 43.
However, the rod side is pin-connected to the revolving ring 43 and the tube side is connected to the lifting frame 44, respectively. The front-rear sliding frame 45 as a beam member connecting the pair of left and right lifting frames 44, 44 slides along a front-rear sliding guide 53a attached to the lower surface of the lifting frame 44 in the front-rear direction. A front-rear sliding cylinder 54 attached to the member 53b and moving the front-rear sliding frame 45 back and forth with respect to the lifting frame 44 includes a rod side on the lifting frame 44 and a tube side on the front-rear sliding frame 45, respectively. Pin-coupled.

Referring to FIG. 4, the relationship between the front-rear sliding frame 45 and the left-right sliding frame 46 as beam members will be described. FIG. 4A is a YY view of FIG.
4 (b) and FIG. 4 (c) are D-D of FIG. 4 (a), respectively.
It is a perspective view and an EE perspective view. The left and right sliding frame 46 is attached to a left and right sliding member 55b that slides on a left and right sliding guide 55a attached to the rear surface of the front and rear sliding frame 45. A left and right sliding cylinder 56 for moving the left and right sliding frame 46 left and right with respect to the front and rear sliding frame 45.
Are provided on the lower surface of the front-rear sliding frame 45. There are a total of four left and right sliding cylinders 56 (56
a, 56b, 56c, 56d). As shown in FIG. 4A, the rod sides of a rear upper cylinder 56a and a rear lower cylinder 56b that move the left and right sliding frame 46 in the left and right direction with respect to the front and rear sliding frame 45 are adjacent to each other so as to face each other. It is attached to the left and right sliding frame 46 vertically.

As shown in FIG. 4 (b), a front upper cylinder 56c whose tube side is attached to the front-rear sliding frame 45 and a rear upper cylinder 56a are adjacently arranged in parallel. The rod side of the front upper cylinder 56c is connected to the rear upper cylinder 56 via the upper bracket 57.
a connected to the tube side of the
The rod side of 6a is connected to the left and right sliding frame 46. Similarly, as shown in FIG. 4 (c), the front lower cylinder 56d whose tube side is attached to the front and rear sliding frame 45 and the rear lower cylinder 56b are adjacently arranged in parallel. I have. The rod side of the front lower cylinder 56d is connected to the tube side of the rear lower cylinder 56b via a lower bracket 58, and the rod side of the rear lower cylinder 56b is connected to the left and right sliding frame 46. I have.

Next, the configuration of the rolling bending frame 47 will be described. As shown in FIG. 3, the rolling bending frame 47 is supported on a support shaft 61 via a bearing 60.
FIG. 5 is an enlarged front view showing the elector device, and FIG.
FIG. 6 is an X view of FIG. 5. As shown in FIGS. 5 and 6, two bending cylinders 63, 63 for bending the rolling bending frame 47 with respect to the left and right sliding frame 46 are symmetrically attached to the left and right sliding frame 46 by a trunnion support method. The tip of the rod of each cylinder 63 is rotatably attached to the rolling bending frame 47.

Further, a sliding guide 62a for fine turning is provided on the lower surface of the rolling bending frame 47, and the left and right fine turning frame 48 is slid left and right through a fine turning sliding member 62b sliding on the guide 62a. Mounted movably.
Rolling bending frame 47 and left and right fine turning frame 48
A two-rod type fine turning cylinder 65 is provided between both ends, and both ends of the rod are provided with rolling bending frames 47.
Then, the tubes are mounted on the left and right fine turning frames 48, respectively.

On the lower surface of the left and right fine turning frame 48, a segment holding portion 49 for holding a segment is provided.
The segment gripping portion 49 includes a suspending portion 71 projecting downward substantially at the center of the lower surface of the left and right fine turning frame 48, four steady rest cylinders 67 disposed around the suspending portion 71, And a steady rest 68 attached to the tip of the cylinder 67. The hanging portion 71 is provided with a fixing hole 66. The left and right sliding frame 46, the rolling bending frame 47, the left and right fine turning frame 48, and the segment holding portion 49 are collectively referred to as a segment holding device. Further, as shown in FIG. 3, a hanger removing device 69 is mounted on the rear end surface of the left and right fine turning frame 48. Note that the hanging device removing device 69 is not shown in FIGS. 1 and 5 because it is omitted.

Next, the operation of the left erector 41 having the above-described configuration will be described. When the inner ring 50b of the turning bearing is rotated by an actuator (not shown), the turning ring 43 attached to the inner ring 50b turns.
The elevating frame 44 slides between the elevating guide 51a and the elevating member 51b with respect to the swivel ring 43 by extending and retracting the elevating cylinder 52, thereby ascending and descending. The front-rear sliding frame 45 is provided with a front-rear sliding cylinder 54.
Is extended and contracted, the sliding member 53b slides between the front and rear sliding guide 53a and the front and rear sliding member 53b with respect to the elevating frame 44 and moves in the front and rear direction.

The operation of the left and right sliding frame 46 by the left and right sliding cylinders 56 will be described with reference to FIGS. FIG. 7 conceptually shows the arrangement of the front / rear sliding frame 45, the left / right sliding frame 46, and the left / right sliding cylinder 56, and also shows a hydraulic circuit of the left / right sliding cylinder 56.
The Aa port of the switching valve 73 having three positions a, b, and c is connected to the rear upper cylinder 56 through the first check valve 76.
a, the head chamber of the front lower cylinder 56d, the bottom chamber of the rear lower cylinder 56b, and the bottom chamber of the front upper cylinder 56c. Bb of switching valve 73
The port is connected to the head chamber of the rear lower cylinder 56b, the head chamber of the front upper cylinder 56c, the bottom chamber of the rear upper cylinder 56a, and the bottom chamber of the front lower cylinder 56d via the second check valve 77. Switching valve 73
At the time of the operation at the position b, the Aa port, the Bb port and the T port are connected. Further, at the time of the operation at the position a, the discharge oil of the hydraulic pump 74 flowing into the switching valve 73 from the P port is:
It flows into the left-right sliding cylinder 56 from the Aa port. c
When the position is operated, the oil discharged from the hydraulic pump 74 flows into the left / right sliding cylinder 56 from the Bb port.

FIG. 8 shows the operating position of the left / right sliding cylinder 56 when the left / right sliding frame 46 is in the neutral position, right position and left position in FIG. When the switching valve 73 shown in FIG. 7 is operated at the position b, the first check valve 76 and the second check valve 77 confine the oil in the left-right sliding cylinder 56, and the left-right sliding frame 46 holds the neutral position. ing. When the switching valve 73 is operated at the position c, the oil discharged from the hydraulic pump 74 is transferred to the head chambers of the rear lower cylinder 56b and the front upper cylinder 56c via the Bb port and the second check valve 77, and to the rear upper cylinder 56c.
a and the bottom chamber of the front lower cylinder 56d. The head chambers of the rear upper cylinder 56a and the front lower cylinder 56d, and the rear lower cylinder 56
b and the oil in the bottom chamber of the front upper cylinder 56c are Aa
Drained to the tank 75 via the port. As a result, the left and right sliding frame 46 moves to the right position as shown in FIG. When the position a of the switching valve 73 is operated to move the left and right sliding frame 46 to the left as shown in FIG. 8C, the flow of the discharge oil from the switching valve 73 is b
Since the position is reversed, the description is omitted here.

According to FIG.
The operation of rolling bending will be described. As shown in FIG. 9B, when oil is supplied to the bottom chamber of the left rolling bending cylinder 63 and the head chamber of the right rolling bending cylinder 63 by a switching valve (not shown), the rolling bending frame 47 is supported by the support shaft 61. Is rolled from the neutral position shown in FIG. 9A in the clockwise direction (hereinafter referred to as CW). Further, as shown in FIG. 9C, when oil is supplied to the bottom chamber of the right rolling bending cylinder 63 and the head chamber of the left rolling bending cylinder 63, the rolling bending frame 47 moves around the support shaft 61. Rolling bending in the counterclockwise direction (hereinafter referred to as CCW).

Next, the left and right fine turning frame 48 is supplied with oil from a switching valve (not shown) to the fine turning cylinder 65 and is operated to the left and right. It slides between the fine turning sliding members 62b and finely slides right and left.

Next, the operation of the segment gripper 49 and the lifting device 69 will be described. The pin holes are inserted by superimposing the pin holes of the hanging metal fittings attached to the segments and the fixing holes 66 of the hanging parts 71 shown in FIG. 5, and then the steadying cylinder 67 is extended and the stopper metal 68 is stretched to extend the segment. In close contact. Thus, the segment is fixed to the segment holding portion 49. And left erecta 4
1 is transported and assembled to a predetermined assembly position by a lifting cylinder 52, a front-rear sliding cylinder 54, a left-right sliding cylinder 56 and the like. When the assembling is completed, the steadying cylinder 67 is retracted to release the close contact between the stopper 68 and the segment, and the pin inserted into the pin hole and the fixing hole 66 of the suspension fitting attached to the segment is pulled out. When removing the hanging bracket attached to the segment, see FIG.
Is used. The pin is inserted by pinning the pin hole 72 of the removal tool 70 of the lifting device removing device 69 with the pin hole of the lifting device attached to the segment, and the removal device 70 is rotated by the actuator in the lifting device removing device 69. And pull out the hanging bracket screwed into the segment.

Next, a procedure for arranging two of the above-described erectors in parallel and assembling a segment having a substantially rectangular section having a center pillar will be described. As shown in FIG. 10, the cross section of the tunnel has two A1, A2,
It is formed by a total of 12 segments C1, C2, D1, and K, an upper middle pillar 79, a lower middle pillar 80, and a middle pillar 78. The segments are CW from the left bottom, left A1, left C
1, left A2, left C2, left K, left D1, right A1, right C1,
Arranged in the order of right A2, right C2, right K, right D1, upper and lower center poles 79 and 80 above and below the center of the cross section, and a center pole between the two center poles 79 and 80. 78 are arranged respectively.

FIGS. 11 to 44 are procedure diagrams showing a procedure for assembling one ring of a segment by the left erector 41 and the right erector 42. FIG. As shown in FIG. 11, the left erector 41 starts assembling the left A1 and the right erector 42 starts assembling the right D1, and the assembly is completed at a predetermined position. Next, the left erector 41 assembles the left C1 according to the procedure of FIGS.
On the other hand, the right erector 42 determines the right K
Assemble. In the procedure of FIG.
The assembly of the right C2 is completed by the procedure of FIG. After the assembly of the right C2 is completed, the right erector 42 is moved to the standby position where the lifting frame 44 shown in FIG.
Wait until the step. In the procedure shown in FIG.
When the assembly of the left C1 by No. 1 is completed, the left erector 41 starts to assemble the left A2 in the procedure shown in FIG. 15, and the assembly is completed in the procedure shown in FIG.

In the procedure shown in FIG. 20, the left erector 41 starts assembling the left C2 and the right erector 42 starts assembling the right A2. The left erector 41 that has completed the assembly of the left C2 in the procedure of FIG. 22 waits at the standby position until the procedure of FIG. In addition,
The right erector 42 completes the assembly of the right A2 in the procedure of FIG. Thereafter, the right erector 42 assembles the right C1 in the procedure of FIGS. 24 to 26 and the right A1 in the procedures of FIGS. 27 to 29, respectively. The right erector 42 that has completed the assembly of the right A1
After that, as shown in FIGS. 30 to 44, it remains at the standby position until assembly of one ring is completed.
On the other hand, the left erector 41 performs the left D
1 to the left K in the procedure of FIGS.
The intermediate pillars 78 are assembled by the above procedure to complete the segment assembly for one ring.

Here, the left C forming the corner of the irregular cross section
2. Taking the left D1 and the center pillar 78 forming the center part as an example, the assembling procedure of those segments by the left erector 41 will be described in detail. First, the procedure for assembling the left C2 will be described with reference to FIGS. As shown in FIGS. 20 and 21, the left C
2 lift the segment gripper 49 holding the CCW 2
Turn. As shown in FIG. 22, after the segment reaches the top of the irregular cross section, the segment gripper 49 is raised with respect to the swivel ring 43 so that the left C2 approaches a predetermined assembly position. Then, the segment gripper 49 is moved to the left with respect to the front and rear
It is rolled and bent to W to assemble the posture of the left C2 according to the posture of the predetermined position.

Next, referring to FIG. 30 to FIG.
Will be described with reference to FIG. As shown in FIG. 30, the segment gripper 49 gripping the left D1 end is raised as shown in FIG. 31 and turned to CCW as shown in FIG. The turning is stopped just before the highest position of the left D1 interferes with the irregular cross section, and as shown in FIG. 33, the CCW is rolled and bent and moved to the right. Thereafter, the ascending / descending frame 44 is lifted, and assembled while finely adjusting the degrees of freedom of left and right sliding, rolling bending, and right and left fine turning.

Next, the procedure for assembling the center post 78 will be described with reference to FIGS. As shown in FIGS. 37 and 38, the segment holding portion 49 holding the center portion of the center column 78 is raised, and is turned to the CCW as shown in FIG. When the elevating frame 44 is substantially horizontal, the turning is stopped, and the CCW is performed until the middle pillar 78 is almost vertically as shown in FIG.
Bend rolling. Then, the worker assembles the lower center pedestal 80 on the right D1 already assembled. Next, as shown in FIG. 41 and FIG. 42, the CC is set so that the center column 78 does not interfere with the upper center column base 79 and the lower center column base 80.
Then, the center column 78 is once put into the working range of the right erector 42 by turning to W. Finally, as shown in FIGS. 43 and 44,
The elevating frame 44 is set to be substantially horizontal by turning to the CW, and is rolled and bent to the CCW to bring the middle column 78 into a vertical state. Then, the center pillar 78 is moved by the lifting frame 44.
Is pulled into between the upper center column base 79 and the lower center column base 80 to complete the assembly.

As described above, in the left erector 41, the left and right sliding frame 46 can move left and right with respect to the front and rear sliding frame 45, and the segment holding portion 49 can be rolled and bent with respect to the left and right sliding frame 46. Left C2, Left D
1. It is easy to approach a long distance position where the segment such as the center column 78 is assembled. In addition, the segment gripper 49
Can be finely slid left and right on the lower surface of the rolling bending frame 47, so that the degree of freedom is high, and the mounting posture of each segment can be easily set. Furthermore, the left erector 41 formed in a gate shape has high rigidity and does not bend or vibrate during segment assembly. This makes it possible to easily assemble a heavy section having a modified cross section and a middle pillar 78 farthest from the corner segment and the erector 41.

In the present embodiment, the lifting frame 51 is mounted on the lifting guide 51a provided on the swivel ring 43.
Is configured to move up and down, but is not limited thereto.
It is also possible to adopt a configuration in which a lifting rod is slidably penetrated into a pair of frames provided on the left and right on 3 and a beam-like frame is bridged between these lifting rods. Of course, in this case, these frames and lifting rods can be regarded as components of the lifting frame 44. However,
When large sliding in the front-rear direction is required, the configuration as in the present embodiment is more advantageous because the rigidity can be increased.

As described above, according to the present invention, the erector comprises a pair of left and right elevating frames slidably supported in the radial direction of the swivel ring, and a beam member (a longitudinal sliding member in the embodiment) for connecting the pair of left and right elevating frames. The frame is configured so as to have a gate shape with the moving frame 45). As a result, an erector having a highly rigid support frame with a double-sided structure is obtained, and it is difficult to bend or vibrate even when assembling the segments, so that even a heavy segment can be easily assembled. In addition, since the segment can be held stably, turning,
Operations such as left, right, front and back are smooth, and excellent workability is obtained. The segment holding portion is attached to the beam member so as to be slidable left and right and freely bendable in a rolling manner. Thus, the segment gripper can be moved to the end of the beam member, and can easily approach the assembly position of the segment far from the erector installed on the irregular cross section. In addition, because the segment posture suitable for work at a specific work position can be easily set by rolling bending,
The efficiency of segment assembling work of irregular cross section is improved. Furthermore, by arranging a plurality of segment elector devices of the present invention in a shield excavator having an irregular cross-section and overlapping at least a part of their working range, a tunnel having a double cross-section or a rectangular cross-section having a large ratio of vertical and horizontal sides. In addition to the above, it is possible to assemble a segment which is difficult to assemble with a normal erector, such as a middle pillar of the tunnel having the irregular cross section. In addition, the center pillar can be assembled by any of the adjacent erectors, and the segment assembling order can be flexibly set, so that the assembling efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a front view of an elector device according to an embodiment.

FIG. 2 is a Z view of FIG.

FIG. 3 is a detailed side view of the erector device of the embodiment.

FIG. 4 is an explanatory diagram of an arrangement of left and right sliding cylinders.

FIG. 5 is an enlarged front view showing the erector device.

FIG. 6 is an X view of FIG. 6;

FIG. 7 is a hydraulic circuit diagram of a left and right sliding cylinder.

FIG. 8 is an operation explanatory view of a left-right sliding cylinder.

FIG. 9 is a diagram illustrating the operation of a rolling bending cylinder.

FIG. 10 is a modified cross-sectional view of a shield described as an example.

FIG. 11 is a procedure diagram showing a segment assembling procedure.

FIG. 12 is a procedure diagram showing a segment assembling procedure.

FIG. 13 is a procedure diagram showing a segment assembling procedure.

FIG. 14 is a procedure diagram showing a segment assembling procedure.

FIG. 15 is a procedure diagram showing a segment assembling procedure.

FIG. 16 is a procedure diagram showing a segment assembling procedure.

FIG. 17 is a procedure diagram showing a segment assembling procedure.

FIG. 18 is a procedure diagram showing a segment assembling procedure.

FIG. 19 is a procedure diagram showing a segment assembling procedure.

FIG. 20 is a procedure diagram showing a segment assembling procedure.

FIG. 21 is a procedure diagram showing a segment assembling procedure.

FIG. 22 is a procedure diagram showing a segment assembling procedure.

FIG. 23 is a procedure diagram showing a segment assembling procedure.

FIG. 24 is a procedure diagram showing a segment assembling procedure.

FIG. 25 is a procedure diagram showing a segment assembling procedure.

FIG. 26 is a procedure diagram showing a segment assembling procedure.

FIG. 27 is a procedure diagram showing a segment assembling procedure.

FIG. 28 is a procedure diagram showing a segment assembling procedure.

FIG. 29 is a procedure diagram showing a segment assembling procedure.

FIG. 30 is a procedure diagram showing a segment assembling procedure.

FIG. 31 is a procedure diagram showing a segment assembling procedure.

FIG. 32 is a procedure diagram showing a segment assembling procedure.

FIG. 33 is a procedure diagram showing a segment assembling procedure.

FIG. 34 is a procedure diagram showing a segment assembling procedure.

FIG. 35 is a procedure diagram showing a segment assembling procedure.

FIG. 36 is a procedure diagram showing a segment assembling procedure.

FIG. 37 is a procedure diagram showing a segment assembling procedure.

FIG. 38 is a procedure diagram showing a segment assembling procedure.

FIG. 39 is a procedure diagram showing a segment assembling procedure.

FIG. 40 is a procedure diagram showing a segment assembling procedure.

FIG. 41 is a procedure diagram showing a segment assembling procedure.

FIG. 42 is a procedure diagram showing a segment assembling procedure.

FIG. 43 is a procedure diagram showing a segment assembling procedure.

FIG. 44 is a procedure diagram showing a segment assembling procedure.

FIG. 45 is a front view of a conventional erector.

[Explanation of symbols]

40: shield excavator, 41: left erector, 42: right erector, 43 swivel ring, 44: lifting frame, 45 ...
Front and rear sliding frame, 46 ... left and right sliding frame, 47 ... rolling bending frame, 48 ... left and right fine turning frame, 4
9 ... Segment gripper, 52 ... Elevating cylinder, 54 ...
Front / rear sliding cylinder, 56 ... Left / right sliding cylinder, 56
a: rear upper cylinder, 56b: rear lower cylinder, 5
6c: front upper cylinder, 56d: front lower cylinder,
57 ... upper bracket, 58 ... lower bracket, 59 ...
Rolling bending frame, 60 ... rolling bending bearing,
63: Cylinder for rolling bending; 65: Cylinder for fine turning; 67: Cylinder for steadying;
.., Hanging tool removal device, 70, removal tool, 71, hanging part, 78, middle pillar, 79, upper middle pillar, 80, lower middle pillar.

Continued on the front page. (72) Kunihiro Nagamori, Kashima Construction Co., Ltd. 1-2-7 Moto-Akasaka, Minato-ku, Tokyo (72) Inventor Masashi Miyoshi, 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima (72) Inventor Tsutomu Nakao Kashima Construction 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction (72) Inventor Hisashi Mizuta 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima (72) Inventor Masahiro Fukuda 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Corporation F-term (reference) 2D055 BA01 BB05 CA01 GB04 GB07

Claims (3)

[Claims] An erector device of a shield machine for assembling a segment by rotating a swivel ring that supports the entire device, comprising a pair of left and right elevating frames provided on the swivel ring, and between the pair of elevating frames. A beam-like frame is bridged so that these frames are substantially gate-shaped as a whole, and the frames having these substantially gate-shaped structures are slidable in the radial direction of the swivel ring as a whole. An erector device for a shield excavator, wherein the erector device is provided so as to be slidable left and right and bendable left and right on a frame. 2. The erector device of a shield machine according to claim 1, wherein the segment gripping device includes a left and right sliding frame slidably provided on the beam frame, and a left and right sliding frame on the left and right sliding frame. A shield excavator characterized by comprising a rolling bending frame provided to be able to be bent left and right, and a segment gripping portion mounted via a frame provided to be slidable left and right on the rolling bending frame. Electa device. 3. A shield machine wherein a plurality of the erector devices according to claim 1 are arranged in parallel.