JPH09125892A - Segment automatic assembly device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a device structure and to reduce the size of a device. SOLUTION: A rotary frame 1 is provided with a suspension beam 9 movable in the radial direction of the rotary frame 1. A slide guide block 13 movable in a direction in which the slide guide block approaches and separates away from the rotary frame 1 through the working of a hydraulic cylinder 14 is attached to a suspension beam 9 and an oscillation frame 17 having a grasping block is disposed between the slide guide blocks 13 and 13. Further, one side of the oscillation frame 17 is pivotally mounted on one slide guide block 13 through pins 15a and 16a, and guide plates 18c and 19c pivotally mounted on the other slide guide block 13 through the pins 15b and 16b are fitted in respective rectangular holes 20 and 20' arranged on the the other side of the oscillation frame 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic segment assembly apparatus.

[0002]

2. Description of the Related Art A shield method has been conventionally used for making a long underground hole such as a tunnel. In the shield construction method, a plurality of segments each having a circular arc shape in the circumferential direction and a rectangular plane shape are attached to a hole excavated by a shield machine to assemble the segments into an annular shape, which is then advanced by the shield machine. At the same time, it was carried out in the direction of the shield machine to complete the underground hole.

When a segment is attached to a drilled hole, an automatic segment assembling apparatus is used.

A conventional example of such an automatic segment assembly apparatus is shown in FIG. 18, in which 101 is an annular rotary frame (not shown) rotatably supported in the rear cylindrical frame of the shield machine. And a guide rod 102 that is supported by a bracket so as to be able to move up and down.
The hanging beam connected to the lower end of the
It is a fluid pressure cylinder that raises and lowers 2.

As shown in FIG. 19, a spherical bearing bracket 104 is fixed in the suspension beam 102, and a spherical bearing 105 is rotatably fitted in the spherical bearing bracket 104. Further, at the front and rear ends of the spherical bearing 105, a quadrature shaft 106 is integrally fixed so that the axis line is generally parallel to the axis line of the shield machine.

Two plate-shaped frames 107 extending in the radial direction of the rectangular shaft 106 are fixedly mounted on the rectangular shaft 106, and shaft center lines are provided at the left and right ends of the frame 107 at the shaft center of the shield machine. A guide cylinder 108 oriented parallel to the line is fixed.

Inside the guide cylinder 108, the suspension beam 102 is placed.
A guide rod 109 that penetrates through and extends in the front-rear direction is slidably fitted, and a sliding frame 110 is fixed to the front and rear ends of the guide rod 109.

Fluid pressure cylinders 112 are attached to the left and right of the frame 107 in parallel with the guide rods 109, and the tip of the piston rod 112a of the fluid pressure cylinder 112 is
The guide rod 1 is connected to the front sliding frame 110 and operates the fluid pressure cylinder 112.
The sliding frame 110 can be moved in the axial direction of the shield machine through 09.

At the front end of the guide cylinder 108, two plate-like frames 113 for functioning as a balancer are fixedly installed so as to be parallel to the frame 107, and either one of the left and right inside the suspension beam 102 is fixed. The front end of the piston rod 115a of the fluid pressure cylinder 115, whose rear end is connected to the frame 113 via the pin 114, is connected to the frame 113 via the pin 116.
It is connected to. The pins 114 and 116 are arranged parallel to the guide rod 101 so that the sliding frame 110 can be rotated (yawed) in the circumferential direction of the segment 122 by the fluid pressure cylinder 115.

Inside the suspension beam 102, two right and left fluid pressure cylinders 117 for fine adjustment, the upper ends of which are connected to the suspension beam 102 via pins 118, are arranged, and a piston rod 117a of the fluid pressure cylinder 117 is provided. The lower end is connected to the left and right ends of the frame 113 via pins 119. Thus, the pins 118 and 119 are connected to the frame 11
It is arranged parallel to the guide rod 101 so that the inclination of 3 can be finely adjusted (see FIG. 18).

The sliding frame 110 is attached to the lower end of the sliding frame 110 via two left and right pins 120 parallel to the guide rod 109 so that the wall portion 121a of the frame 121 for fine turning adjustment is positioned in front of and behind the guide rod 109. Has been.
Then, on the left and right of the wall surface portion 121a, the segment 122
Is provided with a long hole (not shown) extending in the circumferential direction, and the pin 120 is fitted into the long hole.

A fluid pressure cylinder 123 extending in the circumferential direction of the segment 122 is arranged on the wall surface portion 121a, and the tip of the piston rod 123a of the fluid pressure cylinder 123 is connected to the wall surface portion 121a of the frame 121. The frame 121 is pushed and pulled by the fluid pressure cylinder 123 so that the frame 121 can move in the circumferential direction of the segment 122 while being guided by the pin 120.

As shown in FIG. 20, on the lower surface of the frame 121, a vertically oriented fluid pressure cylinder 124 capable of moving toward and away from the segment 122 is attached, and a segment of the fluid pressure cylinder 124 is attached to the lower end of a piston rod 124a. The casing 126 of the gripping device 125 is connected.

The frame 121 includes a fluid pressure cylinder 12
4, a guide rod 127 is attached in parallel with the guide rod 127, and the casing 126 of the segment gripping device 125 can be moved along the guide rod 127 by the operation of the fluid pressure cylinder 124.

A rod-shaped gripping hardware 128 that can be rotated by a driving device (not shown) is accommodated in the casing 126, and the tip of the gripping hardware 128 projects from the casing 126 toward the segment 122 side. Thus, the tip of the gripping hardware 128 is connected to the hole 12 of the segment 122.
After being inserted into 2a, the gripping metal 128 is rotated 90 degrees and the casing 126 is slightly lifted by the fluid pressure cylinder 124, so that the tip of the gripping metal 128 has a hole 12
It can be engaged with the segment 122 through the metal 122b in 2a. In addition, the segment gripping device 125
Are provided at predetermined intervals in the axial direction of the shield machine.

Further, on the lower surface of the frame 121, a bolt fastening machine 129 and a large number of sensors are attached in addition to the segment gripping device 125.

The procedure for attaching the segment 122 with the conventional automatic segment assembly apparatus is, for example, as described below. That is, a rotating frame (not shown) is rotated to position the suspension beam 102, the frame 121, etc. at the bottom of the shield, and the fluid pressure cylinder 124 lowers the segment gripping device 125 along the guide rod 127 to move the gripping hardware 128 to the segment. It is inserted into the hole 122a of the segment 122 mounted on the supply device, the gripping hardware 128 is rotated 90 degrees by the drive device, and the piston rod 124a of the fluid pressure cylinder 124 is raised. Then, the lower end of the gripping hardware 128 engages with the metal fitting 122b set in the hole 122a of the segment 122, and the segment 122 holds the segment gripping device 125.
It is gripped by the grip hardware 128.

The segment 122 is the segment holding device 1.
25, then the fluid pressure cylinder 103
The shield rod 103a is slightly retracted to adjust the shield radial direction position of the segment 122, and then the rotating frame is rotated to integrally rotate the suspension beam 102, the frame 121, and the like in the shield circumferential direction, and The segment 122 gripped by the grip device 125 is positioned at a predetermined position to be attached this time.

When the segment 122 to be attached this time comes to a predetermined position, the fluid pressure cylinder 103 is operated to move the segment 122 to the shield inner peripheral wall side via the suspension beam 102, the frame 121, etc., and the fluid pressure cylinder 115 causes the frame to move. 113, guide rod 10
9, the frame 121 is shown in FIG.
The spherical bearing 105 is rotated (yawed) in the direction of arrow A in FIG. 8 so that the side extending in the circumferential direction of the segment 122 is parallel to the side extending in the circumferential direction of the existing segment. Further, the fluid pressure cylinder 117 operates so that the strokes of both cylinders 117 are different, and the frame 121 is moved through the frame 113, the guide rod 109 and the sliding frame 110 in the arrow B direction of FIG.
The center of the fluid pressure cylinder 12 is rotated (rolled) about 05 to make the circumferential ends of the segment 122 parallel to the circumferential ends of the existing segment.
3, the frame 121 is moved in the shield circumferential direction to finely adjust the circumferential position of the segment 122, and the fluid pressure cylinder 117 is used to move both cylinders 11 together.
The stroke of 7 is made to be the same, and the segment 122 is rotated (pitched) about the spherical bearing 105 in the direction of arrow C in FIG. Further, the fluid pressure cylinder 123 is operated at an appropriate stage to adjust the circumferential position of the segment 122.

When the positioning of the segment 122 is completed, the piston rod 11 of the fluid pressure cylinder 112 is then moved.
2a is projected, the segment 122 is pressed against the existing segment, and the bolt fastening machine 129 is operated to fasten the segment 122 and the existing segment with bolts.

By the way, the above-described conventional segment automatic assembling apparatus, during the assembling of the segment 122 as described above,
Since it is not possible to receive the reaction force of the shield machine, segment installation and excavation cannot be performed in parallel, which is inefficient.

Therefore, in recent years, various means have been studied in order to improve the work efficiency, but it has been found that the work can be carried out efficiently if the planar shape of the segment is a hexagonal honeycomb segment.

That is, in the case of assembling the honeycomb segment 130 as shown in FIG. 21, every other one in the circumferential direction at the tip portion of the honeycomb segment 130 immediately after the shield excavator is more than the recess 131 in the shield excavator. A part protruding to the side is formed. Therefore, if a shield jack for a shield machine is supported on the front end surface of the protruding honeycomb segment 130, the honeycomb segment 130 is assembled into the recess 131 by the segment automatic assembly device while excavating by the shield machine. As a result, the excavation and the attachment of the segments can be performed in parallel, which significantly improves the work efficiency. In the case of the honeycomb segment 130, since both ends in the circumferential direction are tapered, the positioning and insertion of the next honeycomb segment 130 into the recess 131 can be easily performed even if every other one is attached. It is convenient to be able to.

[0024]

However, in the conventional segment automatic assembling apparatus, the honeycomb segment 13 is used.
0 is the frame 113, the guide cylinder 108, the frame 10
7, spherical bearing 105 through spherical bearing bracket 104
To move the honeycomb segment 130 in the shield excavator axial direction along the guide rod 109, the sliding frame 110, the frame 121, and the segment gripping device 125. Since it is necessary to separately provide the fluid pressure cylinders 112, the structure of the entire apparatus becomes complicated and downsizing is difficult. Therefore, it is difficult to apply the conventional apparatus as it is to a shield excavator having a small diameter. There was a problem.

In view of the above-mentioned circumstances, the present invention aims to enable yawing and forward movement of the honeycomb segment by one type of fluid pressure cylinder, and thus to simplify and miniaturize the device structure. It is what you have done.

[0026]

SUMMARY OF THE INVENTION According to the present invention, a suspension frame that is rotatable in a circumferential direction is provided with a suspension beam that is movable in the radial direction of the rotation frame and that extends in a substantially circumferential direction of the rotation frame. The suspension beam is mounted on both sides of the suspension beam, and a pair of slide blocks slidable along a guide rod by a pair of fluid pressure cylinders in a direction parallel to the axial center line of the rotary frame. And a rocking frame provided with segment gripping means is disposed between the pair of sliding blocks, and one side of the rocking frame is provided with an outer periphery of one of the pair of sliding blocks. The pivot guide is pivotally attached via a pin directed in a direction parallel to the moving direction of the suspension beam, and a rectangular guide body is provided on the outer periphery of the other sliding block when viewed from the axial direction of the pin. Pivot through a pin parallel to the pin, front The guide is provided in a hole provided on the other side of the swing frame so that the swing frame can slide in the extending direction of the suspension beam along the straight sides on both sides in the front-rear direction of the axis of the guide rod. The body is fitted and the position of the segment in the axial direction of the segment can be adjusted by the pair of fluid pressure cylinders, and the position of the segment is adjusted with the line extending in the thickness direction of the segment as the center of rotation. It is configured so that yawing can be performed.

In the present invention, by adjusting the movement amount of the piston rods of the pair of fluid pressure cylinders, the sliding frame is rotated to yaw the honeycomb segment, and the movement amount of the piston rods of both fluid pressure cylinders is performed. By setting the same, the swing frame can be moved without rotating and the honeycomb segment can be moved straight in the axial direction of the shield machine.

Since one type of fluid pressure cylinder enables yawing and straight movement of the honeycomb segment, the structure of the apparatus is simplified and the size can be reduced.

[0029]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show an example of an embodiment of the present invention, in which 1 is a rotating frame. The rotating frame 1
Are supported by a plurality of support rollers 3 arranged in parallel with the rear cylindrical frame 2 in the rear cylindrical frame 2 of the shield machine. Further, the rotary frame 1 can be rotated in the circumferential direction of the rear cylindrical frame 2 by a drive device 4 via a pinion 5 and a gear 6 concentrically attached to the rear surface of the rotary frame 1 (FIG. 3). reference).

Reference numeral 7 denotes left and right brackets which are attached to the rotary frame 1 and project horizontally to the rear of the rotary frame 1 (on the side of the anti-shielding machine), and the tip of the bracket 7 can be moved up and down (moved back and forth). A guide rod 8 is attached, and a substantially arcuate suspension beam 9 extending in the circumferential direction of the rotating frame 1 is connected to the lower end of the guide rod 8. The trunnion type fluid pressure cylinder 1 is attached to the bracket 7 via a pin 51 extending in the radial direction of the rotary frame 1.
0 is mounted vertically, and the tip of the piston rod 10a is connected to the suspension beam 9 via a pin 52 parallel to the pin 51. Thus, the suspension cylinder 9 can be moved up and down while being guided by the guide rod 8 by the fluid pressure cylinder 10.

A pair of left and right guide rods 12 extending in the direction of the shield machine axis are attached to a bracket 11 attached to the lower surface of the suspension beam 9 so as to be located at the front and rear ends of the shield machine axis. Guide rod 12
A sliding guide block 13 is slidably fitted over the sliding guide block 13.

The tip of the fluid pressure cylinder 14 whose rear end is connected to the bracket 11 of the suspension beam 9 is connected to the slide guide block 1 via a pin 21 provided in parallel with the guide rod 8 and the like.
3 (see FIG. 3) so that the sliding guide block 13 can be moved forward and backward along the guide rod 12.

Of the left and right sliding guide blocks 13, one of the sliding guide blocks 13 has an outer peripheral portion in the longitudinal direction,
The pins 15a, 16a are projected in the vertical direction, and the pins 15b, 16b are projected in the vertical direction on the outer periphery of the middle portion in the longitudinal direction of the other left and right sliding guide blocks 13. In addition, left and right sliding guide blocks 13, 13
A swing frame 17 is disposed between the swing frame 17 and
The brackets 18a and 19a, which are projected to the outside in the radial direction of the rotary frame 1 on one side of the pin 15a,
It is pivotally attached to 16a.

Further, the brackets 18b and 19b provided on the left and right sides of the swing frame 17 have rectangular holes 2 opened outward in the width direction of the brackets 18b and 19b when seen in a plan view.
0, 20 'are provided, and rectangular guide plates 18c, 19 slidably fitted in the rectangular holes 20, 20'.
c is pivotally attached to the pins 15b and 16b.

A pin 23 is provided on the swing frame 17 in parallel with the guide rod 12 so that the two hydraulic cylinders 22 on the left and right are located rearward farthest from the shield machine.
(Refer to FIG. 1), a fluid pressure cylinder 24 disposed parallel to the fluid pressure cylinder 22 is provided at a position closer to the shield machine than the fluid pressure cylinder 22 and at the shield center position. 1 is pivotally attached via a pin 25 that is oriented horizontally in the radial direction.

As shown in detail in FIGS. 5 and 6, a gripping block 28 for hanging a bolt-shaped gripping hardware 27 previously mounted on the honeycomb segment 26 is attached to the lower end of the swing frame 17 in the widthwise center position. There is.

The grip block 28 has an opening 28a on the surface opposite to the rotary frame 1 in plan view, and a concave spherical seat 28b having an annular hole 28c connected to the opening 28a at the center. On the other hand, the lower surface of the head 27a of the gripping hardware 27 is a downwardly convex spherical portion 27b so as to match the spherical seat 28b.
Thus, when the gripping block 28 moves in the axial center line direction of the rotating frame 1 together with the sliding guide block 13 from the swing frame 17 at the predetermined height position, and the gripping block 28 moves in the direction of the gripping hardware 27, From the perspective, the gripping hardware 27 is inserted into the gripping block 28 from the opening 28a into the annular hole 28c,
The spherical seat 28b of the grip block 28 is the head 2 of the grip hardware 27.
It is positioned below 7a, and by raising the swing frame 17, the spherical seat 28b of the grip block 28 matches the spherical portion 27b of the head 27a of the grip hardware 27, and the honeycomb segment 26 is lifted. I'm supposed to get it.

At the lower ends of the piston rods 22a, 24a of the fluid pressure cylinders 22, 24 mounted on the swing frame 17, pins 29, 30 parallel to the pin 23 and pins 29, 3 are provided.
A holding beam 33 is connected so as to be positioned below the suspension beam 9 via brackets 31 and 32 (see FIG. 2) connected to 0. The holding beam 33 has an arc shape and extends in the circumferential direction of the rotating frame 1.

At the rearmost position of the pressing beam 33 from the rotary frame 1, a positioning bar 34 horizontally protruding rearward is provided.
Are fixed so as to be positioned on the left and right sides of the holding beam 33, and the honeycomb segment 2 is provided on the lower surface of the holding beam 33.
A rubber pad 35 that can contact the inner peripheral surface of 6 is attached.

As shown in FIG. 4, a supporting roller 37 whose axis is parallel to the rotating frame 1 is rotatably attached to the brackets 36 arranged on the left and right below the rotating frame 1, and on the supporting roller 37. Is an arc-shaped fine adjustment frame 38 so as to be positioned radially outward of the rotary frame 1.
And the fine adjustment frame 38 is fixed to the rotary frame 1. Further, the fine adjustment frame 38 is connected to the tip of a piston rod 39a of a fluid pressure cylinder 39 whose rear end is connected to the rear cylindrical frame of the shield machine, and is rotated by the fluid pressure cylinder 39 via the fine adjustment frame 38. The circumferential position of the frame 1 can be finely adjusted. Further, in the rear cylindrical frame 2, a pressing roller 4 for pressing the fine adjustment frame 38 from above.
Bracket 40 so that 1 is parallel to the support roller 37.
Mounted on

A piston rod 42a side of a horizontally arranged fluid pressure cylinder 42 is fixed to an end portion of the pressing beam 33 on the rotary frame 1 side, and the body 4 of the fluid pressure cylinder 42 is fixed.
A horizontal bolt fastening machine 44 is attached to the lower end of the bracket 43 attached to 2b.

The height of the axial center line of the bolt fastener 44 is adjusted when the honeycomb segment 26 held by the holding hardware 27 is adjusted to a predetermined position with respect to the honeycomb segment 26 already attached. Two
It is decided to match the bolt mounting position of 6,
When viewed in plan as shown in FIG. 3, the bolt fasteners 44 are arranged on the left and right so that their axes are parallel to the axes of the shield machine, and the shafts move away from the rotary frame 1. There is one in which the core wire is diagonally arranged to the left and right so as to extend outward in the radial direction of the rotary frame 1.

The segment used in the automatic segment assembling apparatus is the honeycomb segment 26. The honeycomb segment 26, as shown in detail in FIGS.
It is formed in an arc shape that divides the annular body into multiple parts in the circumferential direction,
In plan view, the front and rear end sides of the shield machine in the axial direction are formed linearly in the circumferential direction, and both ends in the circumferential direction are apex at the axial center of the shield machine. It is formed diagonally so that it has a hexagonal shape as a whole.
Further, in the honeycomb segment 26, two right and left bolt insertion holes 26a whose axial center lines extend in the axial direction of the shield machine.
And the left and right bolt insertion holes 26b that extend in parallel with the diagonal portions of the honeycomb segment 26 pass therethrough. In FIG. 7, four bolt insertion holes 26b are shown, but two short bolt insertion holes 26b are attached to the honeycomb segment 26, or other honeycomb segment 26 attached to the honeycomb segment 26. 26 is provided. Also honeycomb segment 2
At the center of the inner peripheral surface of 6, the above-mentioned bolt-shaped gripping metal 27
A female screw 26c is provided for screwing.

An example of bolts connecting the honeycomb segments 26 to each other is shown in FIGS. That is,
As shown in FIG. 9, the insertion bolt 45 has a length that allows it to be inserted through the bolt insertion hole 26b of the honeycomb segment 26. As shown in FIG.
a is the honeycomb segment 26 already attached
Nut 46 previously embedded in the bolt insertion hole 26b of
It can be screwed into. The insertion bolt that is inserted into the bolt insertion hole 26a also has the same structure as the insertion bolt 45. In FIG. 9, 47 is a sheath fitted inside the bolt insertion hole 26b to reinforce the bolt insertion hole 26b, and 48.
Is a reinforcing bar in the honeycomb segment 26 to which the sheath 47 is fixed.

Next, an example of a procedure for mounting the honeycomb segment 26 by the above-described segment automatic assembly apparatus will be described with reference to FIGS.

When attaching the honeycomb segment 26 to the shield excavated by the shield machine, the honeycomb segment to be attached from now on is mounted on a segment supply device (not shown) disposed behind the automatic segment assembly device. The honeycomb segment 26 is conveyed to immediately after the automatic segment assembly device. In this case, the honeycomb segment 26 is located on the bottom side of the shield with the inner peripheral surface side facing upward.

The outer shape of the tunnel formed by attaching the honeycomb segment 26 to the middle portion is shown in FIG.
As shown in FIG. 12, the case where the honeycomb segment 26 is attached to the recess 54 formed between the honeycomb segments 26 of FIG. 12 will be described below.

When the previous installation of the honeycomb segment 26 is completed, the drive unit 4 is driven to drive the pinion 5 and the gear 6.
The rotating frame 1 is rotated in the circumferential direction with respect to the rear cylindrical frame 2 of the shield machine through the. At this time, the piston rod 10a of the fluid pressure cylinder 10 is projected to position the suspension beam 9 at a predetermined lower position, and the piston rod 14a of the fluid pressure cylinder 14 is retracted to position the sliding guide block 13 on the rotating frame 1 side. I will let you. Also, the piston rods 22a, 24 of the fluid pressure cylinders 22, 24
a is made to protrude downward by substantially the same stroke, and the piston rod 42a of the fluid pressure cylinder 42 is made to be made to make it protrude most, and the bolt fastener 44 is retracted to the position farthest from the existing honeycomb segment 26 side. .

Then, the rotary frame 1 rotates to move the suspension beam 9 and the swing frame 17 as well as the holding beam 33 and the grip block 28 attached to the swing frame 17 to the bottom of the shield. Grip block 28
When the center line of the same coincides with the center line of the gripping hardware 27 screwed in advance to the honeycomb segment 26 mounted on the segment supply device, the fluid pressure cylinder 14 is operated to slightly protrude the piston rod 14a. Then, the grip block 28 moves in a direction away from the rotary frame 1 via the sliding guide block 13 and the swing frame 17,
The spherical seat 28b of the grip block 28 enters from the opening 28a side under the head 27a of the grip hardware 27 screwed to the honeycomb segment 26 on the segment supply device.

Therefore, when the piston rod 10a is raised by the fluid pressure cylinder 10, the suspension beam 9 and the swing frame 17 are integrally raised, and the spherical seat 28b of the grip block 28 causes the spherical surface of the lower surface of the head 27a of the grip hardware 27 to move. Shape 2
7b, and the grip block 28 lifts the honeycomb segment 26 from the segment supply device via the grip hardware 27 (see FIG. 5). In this case, the grip block 2
Since the contact portion between 8 and the gripping hardware 27 is spherical, even if the gripping block 28 and the gripping hardware 27 are slightly misaligned, the honeycomb segment 26 can be lifted smoothly without difficulty.

Further, subsequently, by making the piston rods 22a, 24a of the fluid pressure cylinders 22, 24 project slightly downward by the same stroke, the holding beam 33 descends,
The pressing beam 33 presses the honeycomb segment 26 via the rubber pad 35. Therefore, the honeycomb segment 2
6 is locked by the holding beam 33 and the grip block 28. In this case, the honeycomb segment 26 is in a flat state in the axial direction of the shield machine (see FIG. 13), and the gripping hardware 27 is in the horizontal radial direction of the shield machine. The position is adjusted so that it is positioned substantially at the center and is substantially symmetrical with respect to the vertical center line (see FIG. 1).

The honeycomb segment 26 is the gripping block 2
8 is locked by the presser beam 33, the drive device 4
To rotate the rotating frame 1. Then,
The suspension beam 9, the sliding guide block 13, the swing frame 17, and the pressing beam 33 also rotate integrally with the rotary frame 1, and the honeycomb segment 26 has already been mounted up to the position to be mounted this time (for example, the recess 54 in FIG. 12). The existing honeycomb segment 26 is rotated in the circumferential direction. Since the honeycomb segment 26 is locked by the pressing beam 33 and the grip block 28, there is no possibility that the honeycomb segment 26 may come off and fall during the rotation of the rotary frame 1.

When the honeycomb segment 26 is rotated to the mounting position, that is, the yawing, rolling, pitching, etc. of the honeycomb segment 26 are adjusted. That is, when the honeycomb segment 26 is lifted by the grip block 28 and is held by the holding beam 33, the horizontal position of the honeycomb segment 26 as viewed in FIGS. When performing, the left and right fluid pressure cylinders 14 are operated so that the strokes of the piston rods 14a are different, and the swing frame 17 is rotated about the pins 15a and 16a. In this case, the guide plates 18c and 19 are provided on the swing frame 17 on the pins 15b and 16b side.
c is provided, and slippage occurs between the rectangular holes 20 and 20 'and the guide plates 18c and 19c, so that the horizontal position adjustment can be performed easily and reliably.

Further, the honeycomb segment 26 is held by the holding block 28 and is held by the holding beam 33.
Of the fluid pressure cylinder 2 when adjusting the inclination in the circumferential direction or the axial direction of the shield machine, that is, when the honeycomb segment 26 is adjusted by rolling or pitching.
2 and 24 are actuated and the pressing beam 33 is used. In this case, since the spherical seat 28b formed on the grip block 28 and the spherical portion 27b formed on the lower surface of the head 27a of the grip metal 27 are in contact with each other, the spherical portion 27b of the grip metal 27 is the spherical seat of the grip block 28. Therefore, the honeycomb segment 26 can be easily and reliably rolled and pitched.

Further, the rotary frame 1 is slightly moved by the fluid pressure cylinder 39, and the position of the honeycomb segment 26 in the circumferential direction is also adjusted at an appropriate stage.

Although yawing, rolling, and pitching are virtually described in the case where the honeycomb segment 26 is in the horizontal position as shown in FIGS. 1 and 2, it is actually conveyed to the mounting position by the rotary frame 1. Depending on the mounting position, each adjustment is performed with the tangential direction of the outer periphery of the honeycomb segment 26 in the correct position as a reference.

After the adjustment of the position and inclination of the honeycomb segment 26 is completed, the piston rod 22a of the fluid pressure cylinder 22 is then projected. Then, the pressing beam 33 rotates about the pin 25 as a fulcrum, the side farthest from the rotating frame 1 is inclined toward the inner peripheral side of the existing honeycomb segment 26 (see FIG. 14), and finally the tip of the positioning bar 34 is moved to the existing side. It contacts the inner circumference of the honeycomb segment 26 (see FIG. 15).

When the tip of the positioning bar 34 comes into contact with the inner peripheral surface of the existing honeycomb segment 26, the piston rod 24a of the fluid pressure cylinder 24 is made to protrude, and the holding beam 33 is inclined with respect to the axis of the shield machine. The end portion of the rotating frame 1 on the side of is moved toward the inner peripheral wall of the shield. As a result, the surface of the holding beam 33 in the shield excavator axis direction is parallel to the shield excavator axis direction, and the honeycomb segment 26 held by the holding beam 33 and the grip block 28 is the existing honeycomb segment 26.
And the positioning bar 34 also comes into contact with the inner peripheral surface of the existing honeycomb segment 26 in a parallel state, and the position in the shield radial direction is determined (see FIG. 16). Whether or not the honeycomb segments 26 pressed by the holding beam 33 and the grip block 28 as well as the positioning bar 34 are parallel to the existing honeycomb segments 26 is to see, for example, the fluid supply / discharge of the fluid pressure cylinders 22 and 24. A pressure gauge is provided on each line, and it is checked whether the pressure of the pressure gauge reaches a predetermined pressure. When the honeycomb segments 26 to be attached are parallel, the pressures of both pressure gauges become equal.

When the honeycomb segment 26 attached to the automatic segment assembly apparatus becomes parallel to the existing honeycomb segment 26, the fluid pressure cylinder 14 is operated to project the piston rod 14a. Then, the sliding guide block 13 moves to the existing honeycomb segment 26 side with respect to the guide rod 12. Therefore, the swing frame 17 and the pressing beam 33 are also integrated with the sliding guide block 13 and the existing honeycomb segment 26 is provided.
Of the honeycomb segment 26 on the automatic segment assembly side,
It contacts with the tip 3 surface of. As a result, the honeycomb segment 26 on the automatic segment assembly device side is positioned at the predetermined position of the recess 54, and therefore the bolt fastener 44 is moved to the honeycomb segment 26 side by the fluid pressure cylinder 42, and the bolt insertion hole 26a of the honeycomb segment 26 is moved. , 2
The insertion bolt 45 that has been inserted through the 6b in advance is screwed into the nut 46 of the existing honeycomb segment 26 (see FIG. 17). This completes the attachment of the honeycomb segment 26 to be attached this time to the existing honeycomb segment 26.

The pressing beam 33 and the grip block 28 are also provided.
When the piston rod 14a of the fluid pressure cylinder 14 is projected in a state where the honeycomb segment 26, which is being pressed by, is positioned slightly inaccurately in the shield circumferential direction,
One of the oblique sides of the honeycomb segment 26 on both sides in the circumferential direction, which is pressed by the pressing beam 33 and the grip block 28, abuts the oblique side of the existing honeycomb segment 26. Thus, in this case, the piston rod 14a of the fluid pressure cylinder 14 on the side where the oblique side abuts cannot further project, but the piston rod 14a on the side where the oblique side does not abut further projects. Therefore, the swing frame 17 has the pins 15a and 16a as the turning centers.
When rotating around a and 16a, as seen in FIG. 3, it moves in a direction parallel to the paper surface. Pin 15 in this case
The guide plates 18c, 1 are rotatably attached to the b, 16b.
9c is attached to the guide plates 18c, 19c
Also rotates with respect to the pins 15b and 16b by the swing frame 17, and the brackets 18b and 19b and the guide plate 18
The contact portions of c and 19c are slipped, and the swing frame 17
Will move with respect to the guide plates 18c and 19c. Therefore, the rocking frame 17 has pins 15a and 16a.
On the other hand, even if it is turned, an unreasonable force does not act on the swing frame 17.

Further, the honeycomb segment 2 to be attached this time
When the hypotenuse 6 of FIG. 6 partially hits the existing honeycomb segment 26 as described above, the fluid pressure cylinder 39 shown in FIG. 4 is operated to move the piston rod 39a forward or backward to rotate the fine adjustment frame 38. The frame 1 is moved in the circumferential direction. Therefore, as a result of the rotating frame 1 also moving in the circumferential direction, the partial contact of the honeycomb segment 26 to be attached this time is corrected, and the honeycomb segment 26 is corrected.
The smooth positioning can be performed.

Whether or not the one-sided contact of the honeycomb segment 26 is corrected is determined by providing pressure gauges on the fluid supply and discharge lines of the left and right fluid pressure cylinders 14 respectively and checking whether the pressures of both pressure gauges are equal. To do. If the one-sided contact is corrected, the pressures of both pressure gauges become equal.

When the installation of the honeycomb segment 26 of this time on the existing honeycomb segment 26 is completed, the piston rods 22a, 24 of the fluid pressure cylinders 22, 24 are made.
a is retracted to release the engagement between the grip block 28 and the grip hardware 27, and the piston rod 1 of the fluid pressure cylinder 14 is released.
4a is retracted so that the sliding guide block 13, the swing frame 17, and the pressing beam 33 are installed in the existing honeycomb segment 2
6 side, the fluid pressure cylinder 42 retracts the bolt fastener 44, the fluid pressure cylinder 42 retracts the bolt fastener 44, and the drive unit 4 drives the rotary frame 1 to set the honeycomb segment 26 to be mounted next. Rotate and suspend beam 9, sliding guide block 1
3, the swing frame 17, the pressing beam 33, etc. are again moved to the bottom side of the shield.

In the embodiment of the present invention, yawing of the honeycomb segment 26 and movement of the honeycomb segment 26 in the axial direction of the shield machine can be performed by one type of fluid pressure cylinder 14, so that the structure of the device is simplified and the whole structure is simplified. Can be made compact. Therefore, it can be easily applied to a shield machine having a small diameter.

When the honeycomb segment 26 is attached, the shield jack is supported on the protruding portion of the existing honeycomb segment 26, so that excavation by the shield machine can be performed in parallel with the attachment of the honeycomb segment 26. Therefore, the work efficiency is improved.

The operation sequence of the apparatus in the embodiment of the present invention is not limited to the above-mentioned procedure, and various working procedures can be taken according to the conditions, not only the honeycomb segment but also the normal segment. Needless to say, it can be applied and that various changes can be made without departing from the scope of the present invention.

[0068]

According to the automatic segment assembly apparatus of the present invention, since the yawing of the segment and the movement in the axial direction of the shield machine can be performed by one type of fluid pressure cylinder, the apparatus structure is simplified. It is possible to achieve miniaturization as a whole, and therefore, it is possible to achieve various excellent effects such as being easily applicable to a shield machine having a small diameter.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic segment assembly device used in an embodiment of the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a front view of a mechanism for finely adjusting a rotating frame of the automatic segment assembly device shown in FIG.

FIG. 5 is a side view showing a state of the grip block of the automatic segment assembly apparatus shown in FIG. 1 and the grip hardware screwed to the honeycomb segment.

FIG. 6 is a plan view of the grip block shown in FIG.

FIG. 7 is a plan view of a honeycomb segment assembled by the automatic segment assembly device according to the embodiment of the present invention.

8 is a VIII-VIII direction arrow view of FIG. 7. FIG.

9 is a front view showing a fastening means for fastening the honeycomb segment shown in FIG. 7. FIG.

10 is an enlarged view of a part X in FIG. 9;

11 is an enlarged view of an XI portion of FIG.

12 is a side view showing the relationship between the segment automatic assembly apparatus shown in FIG. 1 and a honeycomb segment set at this time which is set in the segment automatic assembly apparatus and an existing honeycomb segment.

13 is a side view showing a work procedure when the honeycomb segment is mounted using the automatic segment assembly apparatus shown in FIG. 1, and is a side view showing a state where the honeycomb segment is mounted on the automatic segment assembly apparatus.

14 is a side view showing a work procedure when the honeycomb segment is mounted using the automatic segment assembly apparatus shown in FIG. 1, and is a side view showing a state in which the positioning bar is brought close to the inner periphery of the existing honeycomb segment.

15 is a side view showing a work procedure when the honeycomb segment is mounted using the automatic segment assembly apparatus shown in FIG. 1, and is a side view showing a state where the positioning bar is in contact with the existing inner circumference of the honeycomb segment.

FIG. 16 is a side view showing a work procedure when the honeycomb segment is mounted using the automatic segment assembly apparatus shown in FIG. 1, and after the positioning bar comes into contact with the inner circumference of the existing honeycomb segment, the honeycomb segment to be mounted this time is installed. It is a side view showing a state in which the honeycomb segments are parallel to each other.

17 is a side view showing a work procedure when the honeycomb segment is mounted using the automatic segment assembly apparatus shown in FIG. 1, and is a side view showing a state in which the present honeycomb segment is fastened to the existing honeycomb segment.

FIG. 18 is a perspective view of a conventional segment automatic assembly apparatus.

FIG. 19 is a partially cutaway plan view in the vicinity of a suspension beam and a sliding frame of the automatic segment assembly device of FIG. 18.

20 is a vertical cross-sectional view of the segment gripping device attached to the lower portion of the frame in FIG.

[Fig. 21] Fig. 21 is a side view for explaining an advantage when the segment is a honeycomb segment.

[Explanation of symbols]

 1 Rotating Frame 9 Hanging Beam 12 Guide Rod 13 Sliding Guide Block 14 Fluid Cylinder 15a, 15b Pin 16a, 16b Pin 17 Swing Frame 18c, 19c Guide Plate (Guide Body) 20, 20 'Rectangular Hole (Hole) 28 Grip Block (segment gripping means)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hiroaki Tomimatsu 11-1 Kitahama-cho, Chita-shi, Aichi Ishikawajima Harima Heavy Industries, Ltd. Aichi factory (72) Inventor Hitoshi Kitayama 11-1 Kitahama-cho, Chita-shi, Aichi Ishikawajima Harima Heavy Industries Co., Ltd. Aichi Plant (72) Inventor Eiichi Hatayama 2-2-2 Matsuzaki-cho, Abeno-ku, Osaka City, Osaka Prefecture Okumura Gumi Co., Ltd. (72) Inventor Kenji Arakawa 2-chome, Matsuzaki-cho, Abeno-ku, Osaka City, Osaka Prefecture No. 2 Okumura Gumi Co., Ltd. (72) Inventor Hirozo Sakamoto 3-5-26 Himejima, Nishiyodogawa-ku, Osaka-shi, Osaka Prefecture Okumura Machine Manufacturing Co., Ltd. (72) Tetsuro Tatsuhama 3 Himejima-shi, Nishi-yodogawa-ku, Osaka Chome 5-26 Okumura Machine Manufacturing Co., Ltd.

Claims (1)

[Claims] 1. A suspension beam, which is rotatable in the circumferential direction, is provided with a suspension beam movable in the radial direction of the rotation frame so as to extend in a substantially circumferential direction of the rotation frame. A pair of sliding blocks, which are slidable along a guide rod by a pair of fluid pressure cylinders in a direction parallel to the axis of the rotating frame, are provided on both sides in the extending direction of the pair of sliding cylinders. An oscillating frame having segment gripping means is disposed between the blocks, and one side of the oscillating frame is provided on the outer circumference of one of the pair of sliding blocks, and the moving direction of the suspension beam is set. And a rectangular guide body as seen from the axial direction of the pin on the outer periphery of the other sliding block, which is pivotally attached via a pin parallel to the pin. Wear it and place it on the other side of the rocking frame The guide body is fitted into the hole so that the swing frame can slide in the extending direction of the suspension beam along the straight sides on both sides in the longitudinal direction of the axis of the guide rod. With the fluid pressure cylinder of No. 1, it is possible to adjust the position of the segment in the axial direction, and to perform yawing to adjust the position of the segment with the line extending in the thickness direction of the segment as the center of rotation. A segment automatic assembly device characterized by the above.