JPH02125099A - Segment assembly equipment - Google Patents

Abstract

PURPOSE:To perform accurate and easy assembly of segments by a method wherein a support frame for supporting the segment is rocked in the direction of a revolving axis and in a direction extending at right angles with the direction of the revolving axis through a support cylinder, and rotated around a radial axis. CONSTITUTION:Moving frames 13 and 16 movable in the direction of a revolving radius and in the direction of a revolving axis are mounted to a revolving member revolved in a given surface. A support cylinder 24 is supported to the moving frames 13 and 16 through a spherical bearing 23, and a support frame 28 for supporting a segment is supported to the support cylinder 24 rotatably around a revolving radius axis. The support frame 24 is rocked in the direction of a revolving axis and in a direction extending at right angle therewith through the support cylinder 24 by means of first and second rocking means. By a rotation drive device, the support frame 24 is rotated around a revolving radius axis. This constitution emables accurate and easy movement of the segment to an arbitrary position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a segment assembly device in a shield piece advance machine.

Conventional technology In general, a shield tunneling machine is equipped with a segment assembly device for assembling segments along the inner wall surface of a tunnel. Conventionally, as shown in FIG. 17, this assembly device includes a plurality of support rollers 202 arranged in an annular manner along the inner peripheral surface of a shield main body 201, and a structure in which these support rollers 202 are rotatable in a vertical plane. a pivot shaft 203 held at the
A segment A is attached to this support frame 204 and is movable in the radial direction of the shield body via an expansion/contraction device 205.
It was composed of a lifting frame 206.

Problems to be Solved by the Invention According to the above-mentioned conventional segment assembly device, the swing wheel 203
is supported by a plurality of support rollers 202, so as the tunnel diameter increases, the rotation axis 203 also increases.
11. There were problems in that processing was difficult and the structure had to be divided for transportation. Furthermore, when the swing ring 203 becomes larger, it becomes necessary to increase the clearance between the swing ring 204 and the support roller 202 in order to absorb the distortion of the shield body 201.
There was also a problem in that the center of the turning wheel and the center of the shield body were misaligned, making it impossible to guide the segments to accurate positions.

Furthermore, according to the conventional segment assembly device described above, since the assembly device itself is provided on the shield body side, the shield body can be moved within the gap between the shield body and the existing ring-shaped segment. Therefore, there was a problem in that it was difficult to determine the position of a new segment to be attached to the existing ring-shaped segment, and the segment could not be attached while the shield body was being excavated.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a segment assembly device that can solve the above problems.

Means for Solving the Problems In order to solve the above-mentioned problems, the first means according to the present invention is to provide a turning member that turns within a predetermined plane so as to be movable in the turning radius direction and the turning axis direction. A moving frame is provided, a supporting cylinder in the direction of the turning radius is supported on the moving frame via a spherical bearing, and a supporting frame for supporting the segments is supported on the supporting cylinder so as to be freely rotatable around the turning radius axis. First and second swing devices are provided to swing the support frame in the direction of the rotation axis and in a direction perpendicular thereto via the support tube, and a rotary drive 17J g rl is provided to rotate the support frame around the rotation radius axis. This is a segment assembly device characterized by the following.

Moreover, the second means according to the present invention allows the bogie to be movably guided via a guide ring on the annular guide rail attached along the inner circumferential surface of the shield main body, and the bogie is guided along the annular guide rail. a swing drive device for turning the shield body, and a moving frame movable in the radial direction of the shield body and in the axial direction of the shield body is provided on the trolley;
A support tube in the radial direction of the shield body is supported on this moving frame via a spherical bearing, and a support frame that supports the segments is supported on this support tube so as to be rotatable around the shield body's radial axis. and providing first and second rocking positions for rocking the support frame in the direction of the axis of the shield body and in a direction perpendicular thereto;
This segment assembly device is characterized by being provided with a rotational drive device that rotates the support frame around the radial axis of the shield body.

Furthermore, the third means according to the present invention provides a ring frame that is rotatably provided in an existing ring-shaped segment arranged in a ring shape as an inner wall portion of the tunnel. A movable frame is provided, and the support tube in the radial direction of the shield body is supported on the movable frame via a spherical bearing,
A first and a second support frame that supports the segment on the support tube is rotatably supported around the tunnel radius axis, and the support frame is oscillated in the tunnel axis direction and in a direction perpendicular to this through the support tube. A rotary drive that includes a swinging device and rotates the support frame around the tunnel radius axis! This is an 8-position segment assembly featuring a 7J device.

Effect According to the configuration of the first means, the support tube is guided to a predetermined location via the rotating member and the moving frame, and
Since the support frame supporting the segments can swing and rotate freely relative to the support tube, the segments can be accurately and easily guided to a predetermined mounting position.

Furthermore, according to the configuration of the second means, the trolley for holding the segments is guided by the annular guide rail provided inside the shield body in a freely rotating manner, so that even if the shield body has a large diameter, There is no need to divide the swivel ring into parts v1 as shown in Figure 3. In addition, since the support frame is provided so as to be movable in the axial direction of the shield body and in the radial direction of the shield body, and rotatable around the radial axis of the shield body, the segment Easily correct mounting part! il and the correct mounting orientation.

Furthermore, according to the configuration of the third means, since the support frame that supports the segments is placed on the existing ring-shaped segment side via the support tube and the moving frame, the segments can be accurately held even when the shield main body moves, that is, when it moves forward. Moreover, it can be easily guided to its mounting position.

EXAMPLE A first example of the present invention will be described below with reference to FIGS. 1 to 10.

In FIGS. 1 and 2, reference numeral 1 denotes an annular guide rail with an oval cross section that is attached to a support 4 fixed to a ring girder 3 in the shield body 2 via an attachment member 5. As shown in FIG. This annular guide rail 1 includes a bogie (
A swing member) 6 is provided movably along the circumferential surface of the shield body 2, and a swing drive device (as shown in FIG.
j) It is adapted to be pivoted along the annular guide rail 1 by means of 7. That is, guide wheels 8A and 8B that sandwich the annular guide rail 1 from the inside and outside are attached to at least two places on the truck 6, and a third guide wheel 8A and 8B are attached to the truck 6.
As shown in the figure, a swing electric motor (or hydraulic motor) 11 having a pinion 10 that meshes with a ring gear 9 attached to the mounting member 5 is arranged. Further, the guide wheels 8A and 8B are shaped to have semicircular grooves in order to restrict the movement of the cart 6 in the radial direction of the shield body and in the axial direction of the shield body. A separately defined flat roller may also be provided. In addition, the ring gear 9, pinion 1
The turning drive device 7 is constituted by the turning motor 111 and the turning electric motor 11. Therefore, by driving the turning electric motor 1111, the bogie 6 can be turned along the tunnel inner wall surface.

The cart 6 is connected to a first
The first frame 13 is guided to be movable in the radial direction of the shield body, and the first frame 13 attached to the left and right sides of the trolley 6
A driving device (for example, a cylinder device) 14 allows the tunnel to be moved toward and away from the inner wall surface of the tunnel. A second moving frame 16 is movably guided to the first moving frame 13 along the axis of the shield body via a pair of left and right guide rods 15, and a second moving frame 16 is guided by a second driving device 17 to move the shield. It is designed to be moved in the axial direction of the main body (the front-rear direction of the shield main body). Note that this second
As shown in FIG.
It is comprised of a male threaded rod 19 which is threadedly inserted thereinto and rotatably supported by the first moving frame 13, and a mobile streetcar eli 20 which rotates this male threaded rod 19. In addition, this second drive #h device! A cylinder arrangement can also be used as 17. Further, the second moving frame 16 has an automatic fastening device 21 that holds and guides the segment A to a predetermined position and automatically connects it to the already attached segment B via bolts and nuts, In addition, a segment guide mounting device 22 is provided which allows fine adjustment of the mounting neck of the segment A.

This segment guide mounting device 22 is shown in FIGS. 5 and 6.
As shown in the figure, a spherical bearing 23 disposed on the second moving frame 16, a support tube 24 inserted into and supported by the inner ring 23a side of the spherical bearing 23 in the radial direction of the shield body, and one end of the support tube 24. A female threaded body 26 is supported by the mounting member 25 inserted into the mounting member 25 so as to be swingable around an axis perpendicular to the axial direction of the support tube 24, and one end thereof is rotatably supported by the attachment member 25 inserted into the support tube 24. and a support frame 28 with a support plate 27 of the segment attached to the other end thereof, and a support frame 28 with a support plate 27 attached to the other end thereof, and a support frame 28 with a support plate 27 attached to the other end thereof, and a support frame 28 with a support plate 27 attached to the other end thereof, and a support frame 28 with
Hereinafter referred to as the width direction, shown by arrow a in FIG. .1 slide body 30, second moving frame 16
The first electric motor υi 32 is attached to the side and moves the slide body 30 in the 1M direction through the screw mechanism 31.
(Slide body 30. Nejibo @ 31 and the 1st electric order 4
．． '332 constitutes a second rocking jammer neck), a second electric motor n33 that is attached to the slide body 30 and rotates the Jj threaded rod 29 (female threaded body 26, male threaded rod 29a
; and the 11th moving device is constituted by the second lightning vM33), and when it is attached to the support cylinder 24 side to the platen 1 via 34, a turning C is provided on the support frame 28 side. A third electric gear 37 that rotates a pinion 36 that meshes with a rotating gear (for example, a small gear) 35 (a rotational drive device is constituted by the turning gear 35, the pinion 36, and the third electric gear 37), A connecting tool 3 that is arranged within the support frame 28 and has a threaded portion 38a for connecting to the segment protruding above the supporting plate 27.
8 and the threaded portion 38a of this connector 38 are connected to a pair of spur gears 39.
．． 40 and a segment fixing device 42 consisting of a fourth bolt IPIJn 41 which is rotated through a fourth bolt IPIJn 41.

Therefore, by driving the first electric hoist 32, the slide body 30
Slide it towards the width 8't! Then, Jj screw rod 29
Since one end of the support tube 24 similarly moves via Something comes up. Also, the second train! l'II is 33, J, if you avoid turning the screw by 29 threads, the female thread l
Through A26, the lower end of the support 1.1 cylinder 28 moves in the +FJ-V direction as indicated by the arrow in Fig. In addition, the third lightning grip 37
When the pinion 36 is rotated, the support frame 28 rotates (yawing) via the rotation gear 35 in a plane perpendicular to the radius of the shield body, so that the segment 8 can be rotated within its mounting surface. Further, by driving the eleventh electric motor 41, the connecting tool 38 can be engaged and detached from the screw hole on the segment Δ side, so that the segment A can be fixed to or detached from the support plate 27.

Next, the automatic tightening device 21 for bolts and nuts will be explained. As shown in FIGS. 7 and 8, this automatic fastening device 21 includes a support portion 4451 protruding from the support plate 27 toward the center of the shield body, and a pair of support portions 4451 on the left and right positions of the support member 51, respectively. A first guide rod 52 and a second guide rod 52 and 53 are movably supported in the axial direction,
A cut guide tube 5 is installed at one end of each first guide rod 52.
4, the third member is movably guided in the radial direction of the shield body.
The guide rod 55 and the holding portion 445 of the joint connecting bolt C, which is attached to the tip of the guide rod 55
6, a fourth guide rod 58 that is movably guided in the radial direction of the shield body by a guide cylinder 57 provided at one end of each second guide rod 53, and a fourth guide rod 58 that is attached to the tip of the fourth guide rod 58. It consists of a nut tightening tool 59 for tightening nuts, and cylinder devices 60 to 63 for moving each of the guide rods 52, 53, 55, and 58 in a predetermined direction.

The pair of guide rods 52 on the bolt holding side are arranged inside the pair of guide rods 53 on the nut holding side, and
The moving cylinder devices 60, 61 are provided one each at opposite positions. Further, the nut tightening tool 59 includes a casing 71 directly attached to the fourth guide rod 58, a drive side sprocket 73 fixed to a rotating shaft 72 disposed inside the casing 71, and A socket 14 for holding a nut D rotatably disposed at the tip of the arm portion 71a, and this socket 7.
A buene 76 is wound between the conventional side sprocket []kekerato sprocket III) 75 formed on the outer periphery of the sprocket 4,
It consists of a fifth electric current vJf 177 that prevents the rotating shaft 72 from rotating. Note that the holding position of the bolt C and the position of the holding position of the nut D and the socket 74 are arranged to face each other. Therefore, with the bolt C and nut D held, the cylinder devices 60 to 6
3, bolt C and nut D
can be located in the mounting section F of the segments A and B, and by operating the cylinder device 60.01, the bolt C can be inserted into the bolt hole and the nut D can be brought into contact with the threaded part of the bolt C. Now, by further driving the fifth electric bolt 77 to rotate the socket 74 and tighten the nut D onto the bolt C, the segments A and B can be automatically fastened together.

Furthermore, on the peripheral edge of the support plate 27 of the segment A,
As shown in FIGS. 9 and 10, sensors 81 (for example, microswitches are used) for the segments along the circumferential direction of the shield body and the axial direction of the shield body, respectively. Note that ultrasonic sensors may be used. ) can be installed in multiple numbers. These sensors 81 are used to align the parallelism with segment B, which is to be quickly installed, by touching segment B, which has already been installed.In other words, all sensors 81 are turned on. Then, both segments A, 8
It can be seen that they are parallel to each other.

In the above configuration, when attaching segment 8 to the inner wall surface of the tunnel, first, the truck 6 is rotated downward and segment 8 is held on the support plate 21 by the connector 38. next,
After turning the truck 6 to a predetermined position, each drive device 14
, 17 as appropriate to move the segment A to a predetermined mounting position. Next, each electric motor 32, 33, 37.41
Drive the segment eight in the axial direction of the shield body,
Segment 8 is adjusted to the correct mounting position and posture by slightly moving it in the same radial direction and in a direction perpendicular to the same radial direction and turning it within the mounting surface. In addition,
[-1- Posture confirmation in the link direction and pitching direction is performed by a sensor 81 disposed on the peripheral edge of the support plate 27. That is, when all the sensors 81 contact the already attached segment B and turn on, this segment B and the new segment 8 are now parallel to each other. Next, the automatic fastening device 21 inserts the bolt C into the bolt holes of both segments A and B, and then tightens the nut D onto the bolt C. This results in
The new segment 8 has been automatically fixed to the already installed segment 8. And finally, the fourth
Electric! What is necessary is to drive the 7J machine 41 to separate the coupling tool 38 from the segment A.

By the way, in the above embodiment J3, the cart is supported and guided by one annular guide rail, but two annular guide rails may be provided to support and guide the cart on both sides. Further, by arranging two carts on the same circular guide rail, work efficiency can be improved.

Next, a second embodiment of the present invention will be described based on FIGS. 11 to 16.

In the first embodiment, the segment assembly device was placed on the side of the shield body, but in this second embodiment, the segment assembly device was already placed behind the shield body along the tunnel inner wall surface. It is placed inside the existing ring-shaped segment F.

That is, a support device 103 is disposed inside the existing ring-shaped segment F, and is provided with arc-shaped segment pressing members 102 on all sides, which are moved in and out in the radial direction of the tunnel by a cylinder device 101 for egress and egress. device 771
A ring frame (swivel member) 105 is provided at the front end of the ring frame 103 via a swing bearing 104 so as to be rotatable in a vertical plane. A pair of guide frames 106 are provided protruding forward from left and right positions on the front surface of this ring frame 105, and each of these guide frames 106 has a first
1 movable frame 107 is guided movably in the front and rear directions, and these two cylinders 11 movable frame 10
7 is a 12th moving frame 108 having a 0-shaped shape when viewed from the front;
is provided so as to be movable in the vertical plane and in the radial direction of the tunnel. Further, a slide frame 110 is connected to the twelfth moving frame 108 via a slide member 109.
is provided so as to be movable in the left and right directions as shown by arrow d in FIG. It is being Additionally, a swing device 112 (for example, composed of a swing motor 115 having a pinion 114 that meshes with a ring gear 113 formed on the outer periphery of a swing bearing 104) for swinging the ring frame 105 is attached to the support device 103. It is provided on the side, and the eleventh moving frame 1
11th drive device (cylinder device) for moving 07) 1
16 is provided within the guide frame 106, and
A twelfth drive device (cylinder device [79) 117 for moving the twelfth moving frame 108 is provided on the eleventh moving frame 107 side. The twelfth starting frame 107 is provided with a segment guide attachment 122 for guiding the segment E. By the way, this segment guide mounting device 122 has the same structure and functionality as the first embodiment, so its main parts are given three-digit numbers with the last two digits being the same as those in the first embodiment. , and the explanation thereof will be omitted.

Note that the rotating part vJ for yawing in the first embodiment
The device is connected to the turning gear 35, pinion 36 and the third W [
1I37 and adopted a rack and pinion mechanism, but in the second embodiment, in order to improve accuracy, a screw mechanism similar to the mechanism in each swinging device was adopted, and a third electric jammer was used. The machine 137 uses a servo motor.

In this configuration, when assembling the segments E along the inner wall surface of the tunnel, the segments E supplied by the segment conveyance supply device 191 are transferred to the support frame 128.
After being supported by the 11th and 12th moving frames 1
07.10111 and the ring frame 105 is moved to its mounting position. Then, the turning direction fine adjustment type VJ machine 111 and the first to third electric motors 132.13
3. Drive 137 to correct the posture of segment E,
Guide it to the designated position. Thereafter, the bolt/nut self-vJ fastening device 121 may be used to connect it to the existing ring-shaped segment.

In this way, since the segment assembly load is supported inside the existing ring-shaped segment, when installing a new segment, the existing ring-shaped segment 1- can be used as a reference, and therefore the assembly vI When the accuracy improves, segment assembly work J3 and bolt/nut tightening work can be performed even during cutting.

Note that in each of the above embodiments, the order in which the movable frames are attached to the rotating member can be reversed.

Effects of the Invention According to the configuration of the first means of the present invention as described above, the support frame that supports the segments can be swung or rotated in any direction via the support tube, so the segments can be moved in any direction. It can be moved accurately and easily to the desired position.

Further, according to the configuration of the second means of the present invention, since the trolley for holding the segments is guided by the annular guide rail provided inside the shield body in a freely rotating manner, even if the shield body has a large diameter, , as in the conventional way, the turning wheel is
In addition, there is no need to provide a clearance between the swing ring and the support roller as in the past, and the support frame that supports the segments is provided so as to be movable in the axial direction of the shield body and in the radial direction of the shield body. Since the shield body is rotatable around the radius axis, even if a dimensional error occurs in the annular guide rail due to the larger diameter of the shield body, the segment can be easily guided to the correct mounting position and orientation. Can be done.

Furthermore, according to the configuration of the third means of the present invention, the support frame that supports the segments can be swung or rotated in any direction via the support tube, and this support frame can be attached to the existing ring. Since the ring-shaped segment is placed on the segment side, when installing a new segment, it is possible to use the existing ring-shaped segment as a reference, which improves the assembly accuracy and allows the segment to stand 1 tft even during excavation. Able to perform work and retighten bolts and nuts.

[Brief explanation of the drawing]

1 to 10 show a first embodiment of the present invention, in which FIG. 1 is an overall sectional view, FIG. 2 is a sectional view taken along line II in FIG. 1, and FIGS. 3 and 4. is a cross-sectional view of the main part, ft55 Figure 6 is a cross-sectional view of the segment guide installation VT 8 is a view taken along the arrows ■-■ in FIG. 7, FIG. 9 is a perspective view of the support plate, FIG. 10 is a schematic side view explaining the segment attachment operation, and FIGS. 11 to 16 are views of the present invention. This shows the second embodiment, and FIG. 11 is an overall cross-sectional view, and FIG. 12 is a cross-sectional view of the first embodiment.
Fig. 1 is an enlarged view of the IV-IV arrow in Fig. 1, Fig. 13 is a sectional view of the main part, Fig. 14 is a v-v sectional view of Fig. 13, and Fig. 15 is an enlarged view of the
Figure 4 is an enlarged view of the main part, Figure 16 is the Vl - Vf of Figure 15.
17 is an overall sectional view of a conventional example. 1... Annular guide rail, 2... Shield body, 6
...Dolly, 7...Turning drive! II device, 8A, 8B・
...Guide wheel, 13...First movement frame, 14...
First driving device, 16... Second moving frame, 17...
・Second drive device, 18...Female thread body, 21.121・
... Self-vJa connection device, 22.122 ... Segment guide mounting device, 23.123 ... Spherical bearing, 24.12
4...Support cylinder, 26.126...Female thread body, 27.
... Support plate, 28.128 ... Support frame, 29.
129...Male thread rod, 30,130...Slide body, 31...Screw mechanism, 32,132...First electric vJ
Machine, 33° 133... Second electric motor, 35... Turning gear, 36... Binion, 37.137... Third electric VJ machine, 41,141... Fourth electric motor, 42. ... Segment fixing device, 56... Holding member, 59... Nut tightening tool, 81... Sensor 103... Support device, 105... Ring frame, 107... Eleventh...
Movement frame, 108... 12th movement frame, 11
0...Slide frame, 112...Swivel device, 1
16... 11th drive device, 117... 12th drive device. Agent Yoshihiro Morimoto 5th Fig. 7-tLm drive nail No. 4 Fig. t7--・Sai 2 追轀喀 1st Fig. 1σ Fig.

Claims (1)

[Claims] 1. A rotating member that rotates within a predetermined plane is provided with a moving frame that is movable in the radial direction of rotation and the direction of the axis of rotation, and a supporting cylinder in the radial direction of rotation is attached to this moving frame on a spherical surface. A support frame supporting the segment is supported via a bearing, and a support frame supporting the segment is rotatably supported on the support tube around the axis of the turning radius, and the support frame is supported via the support tube in the direction of the rotation axis and in a direction perpendicular thereto. First and second rocking
1. A segment assembly device comprising a swinging device and a rotational drive device for rotating a support frame around an axis of a turning radius. 2. A turning drive device is provided to allow the cart to be movably guided via guide wheels on the annular guide rail attached along the inner circumferential surface of the shield body, and to rotate the cart along the annular guide rail. A moving frame that is movable in the radial direction of the shield body and in the axial direction of the shield body is provided on the trolley, and this moving frame supports a support tube in the radial direction of the shield body via a spherical bearing, and a segment is attached to this support tube. first and second swing devices that rotatably support a support frame that supports the shield body around the radial axis of the shield body, and that swing the support frame in the axial direction of the shield body and in a direction perpendicular thereto via the support tube; What is claimed is: 1. A segment assembly device comprising: a rotary drive device for rotating a support frame around a radial axis of a shield body; 3. A movable frame that is movable in the tunnel radial direction and the tunnel axis direction is provided in the ring frame that is rotatably provided in the existing ring-shaped segment arranged in the ring shape as the inner wall of the tunnel, A support tube in the radial direction of the shield body is supported on this moving frame via a spherical bearing, and a support frame that supports the segment is supported on this support tube so as to be rotatable around the tunnel radius axis. First and second structures that swing the support frame in the direction of the tunnel axis and in a direction perpendicular thereto.
A segment assembly device characterized in that it is provided with a swing device and a rotation drive device that rotates a support frame around a tunnel radius axis.