JP2000220397A - Segment-assembling equipment for shield excavation machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently assemble segments. SOLUTION: This segment-assembling equipments are provided with an assembling equipment 11 for segments, arranged at the rear part of a shield excavation machine 1 to transfer the segments to specified positions and position them and a connection device 12A connecting a joint between an existing segment piece and a new segment piece with a horizontal cotter pin. The connection device 12A is provided with rotating ring rails 32 positioned at the outer peripheral part of the segment-assembling equipment 11 and around the axial center of the shield machine arranged at the shield machine body 1a, circulating trucks 33 transferably arranged on the rotating ring rails 32, frames 41 provided so as to be radially extensible or retractable in rotating trucks 33, and a connection means composed of a holding lever and a driving cotter, in which the cotter is inserted and driven in the joint between pieces, in the frames.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield assembling machine for excavating a tunnel by a shield construction method, and to a segment assembling facility for assembling segments at a rear portion of the shield machine and lining.

[0002]

2. Description of the Related Art For example, when assembling and lining a segment on the inner surface of a tunnel, a segment assembling facility for assembling the segment is installed at the rear of a shield machine. The segment assembling equipment includes a segment assembling device that holds a segment piece carried in from the back of the mine and positions it at an assembling position, and a fastening device that connects and fixes the positioned segment piece to an existing segment piece. Conventionally, bolt connection type fastening devices using bolts and nuts have been the mainstream as connection tools for segment pieces, but in recent years, pin connection type fastening devices for fastening segment pieces using easily installable fastening pins have been seen. It became so.

[0003] These conventional fastening devices are arranged on both sides of the segment holding frame of the segment assembling device, and are configured to connect and fix the positioned new segment piece and the existing segment piece by a plurality of connecting tools. Have been.

[0004]

However, in the above-mentioned conventional structure, in the case of a bolt-connected type fastening device, if the connecting member is a lightweight bolt / nut, a bolt / nut of about one ring is used. Can be held
In the case of a pin connection type fastening device, it is difficult to hold a large number of somewhat heavy cotter pins in the fastening device.
Therefore, especially in the pin connection type fastening device, it is necessary to return the next cotter pin to the cotter pin supply unit every time the fastening operation is completed.
This increases the operation stroke of the segment holding frame of the assembling apparatus, which has been a factor in reducing the efficiency of the segment assembling work.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a segment assembling facility of a shield machine capable of assembling segments efficiently by solving the above problems.

[0006]

According to a first aspect of the present invention, there is provided a segment assembling apparatus which is disposed at a rear portion of a shield body of a shield machine and transfers and positions a segment piece to a predetermined position. A segment assembling facility for a shield excavator, comprising: a fastening device for fastening a connected portion of an existing segment piece and a new segment piece positioned by a connecting part, wherein the fastening device includes a shield at an outer peripheral portion of the segment assembling device. A swivel ring rail centered on the shield axis arranged on the main body,
A swivel truck movably arranged on the swivel ring rail, an egress / retract frame provided on the swivel vehicle so as to be able to move in and out in the radial direction, and a connecting part attached to the elongate frame in the connecting part. And a fastening machine for fastening.

[0007] According to the above configuration, the fastening device can be swiveled separately from the segment assembling device, so that the connection fitting can be supplied to the fastening device even during the segment piece positioning operation by the segment assembling device.
Since different operations can be performed in parallel, the operation efficiency can be further improved.

According to the second aspect of the present invention, a plurality of slewing vehicles are arranged on the slewing ring rail, and a plurality of connecting component supply portions are provided on the shield body side corresponding to the slewing vehicles respectively. is there.

According to the above construction, the fastening operation and the connection part receiving operation can be efficiently performed by the plurality of swivel trucks, respectively, and the connection part supply unit provided for each swivel truck can be used to supply the connection parts. Receiving can be performed without waiting time, and the efficiency of the fastening operation can be further improved.

In a third aspect of the present invention, the connecting component is a cotter pin that is driven into the connecting portion of the segment piece and is fastened. And a driving device for driving the connecting portion.

According to the above configuration, in the case of a cotter pin which cannot be held by a relatively heavy fastening machine in a large amount,
Although a large amount of the supply operation is required, a cotter pin receiving operation can be performed more smoothly by a fastening device that operates separately from the segment assembling device.

According to a fourth aspect of the present invention, in the configuration of the third aspect, the cotter pin is driven into the inter-piece connecting portion of the segment piece adjacent to the shield body in the axial direction of the shield to form a segment ring. It is a horizontal cotter pin, and the driving device of the fastening machine is configured by a driving cylinder that drives the horizontal cotter pin into the connecting portion between the pieces in the axial direction of the shield.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a segment assembling facility according to the present invention will be described with reference to FIGS.

As shown in FIG. 6, a segment 10 to be assembled at the rear of the shield machine 1 (FIGS. 1 and 2) axially connects a plurality of segment pieces 2 to each other in a circumferential direction. The inter-piece connecting portions 4 of the segment pieces 2 adjacent in the circumferential direction are assembled.
A plurality of H-shaped horizontal cotter pins 5
Are connected in the axial direction of the shield, and a plurality of vertical cotter pins 7 serving as connecting tools are driven and connected to the inter-ring connecting portions 6 between the adjacent segment rings 3.

In the inter-piece connecting portion 4, a pair of upper and lower cotter insertion holes 8A and 8B are formed on both end surfaces in parallel with the shield axis of the segment piece 2 in the direction of the shield axis, and the cotter insertion holes 8A and 8B are formed. Fastening fittings 9A and 9B to which the horizontal cotter 5 can be fitted are respectively buried in front and rear positions. In the inter-piece connecting portion 4, the fasteners 9 </ b> A, 9 </ b> B divided at the end face of the segment piece 2 into two parts
Are abutted to form a cotter hole having an H-shaped cross section into which the horizontal cotter pin 5 can be fitted.

As shown in FIGS. 1 and 2, at the rear of the shield machine 1, a segment assembling apparatus 11 for transporting and positioning the segment pieces 2 to a predetermined position, A cotter driving device 12A, which is a pin connection type fastening device for fastening the connection portion 4,
12B are provided independently of each other.

The segment assembling apparatus 11 includes a swing bearing 14 on a support wall 13 provided at a rear portion of the shield body 1a.
The turning frame 15 is rotatably supported about the shield axis O via the ring gear 16, and a ring gear 16 provided on the turning frame 15 on the outer peripheral side of the turning bearing 14, and meshes with the ring gear 16 to be rotationally driven by the turning drive motor 17. The rotation driving device 19 including the driving pinion 18 is driven to rotate. The revolving frame 15 has a plurality of attitude adjusting cylinders, that is, radially extending and retracting cylinders 2.
1, turning fine adjustment cylinder 22, cylinder 2 for yawing
3, rolling cylinder 24, sliding cylinder 2
7 and segment holding frame 25 whose attitude is controlled by pitching cylinder 28 and respective guide devices
Are provided, and the segment piece 2 is held by the segment holding device 26 provided on the segment holding frame 25.

As shown in FIGS. 3 and 4, the cotter driving device 12 is provided on a support wall 13 on the outer periphery of a revolving frame 15 which is a fixed side, with a revolving ring rail centered on a shield axis via a supporting member 31. The swing ring rail 32 guides two swing carriages 33 via a plurality of swing guide rollers 34 so as to be able to swing freely. These swivel trucks 33 include swivel ring rails 32.
And a turning pinion 35 meshing with a ring internal gear 38 attached to the inner peripheral portion of the turning pinion 3.
A turning movement device 37 having a hydraulic turning movement motor 36 for driving the rotation of the motor 5 is provided. In addition, swivel truck 33
Is provided with a retractable frame 41 which can be extended and retracted in the radial direction via a guide rod 42, and is driven by an alignment cylinder 43 for extension and retraction.

The support frame 44A, 44B corresponds to the cotter insertion hole 8A, 8B of the inter-piece connecting portion 4 and has two angle adjusting devices 45, respectively.
The driving angle is provided so as to be freely adjustable around the axial center along the tangential direction via A and 45B. Pushing tables 47A and 47B are arranged on the supporting frames 44A and 44B via extension rails 46A and 46B along the shield axis direction.
7A and 47B are moved toward and away from the inter-piece connecting portion 4.

Further, shift frames 49A and 49B, which are shifted between the pushing position on the outer peripheral side and the refilling position on the inner peripheral side by the shift cylinders 48A and 48B, are respectively provided on the pushing tables 47A and 47B on the guide rails 53.
A, 53B, and these shift frames 4
9A and 49B, a pair of gripping levers 51A and 51B capable of holding the horizontal cotter pins 5 and 5 and the driving jigs 50 and 50, respectively, and a driving cylinder 52A for driving the horizontal cotter pins 5 and 5 and the driving jigs 50 and 50, respectively. , 5
Fastening machines 54A and 54B each composed of 2B are mounted.
The grip lever 51 is opened and closed by a known opening and closing mechanism (not shown). Further, the driving cylinders 52A, 52B
Are disposed at the rear of the gripping levers 51A, 51B, and project their driving rod 52a from between the gripping levers 51A, 51B so that the horizontal cotter pin 5 or the driving jigs 50, 5
0, and the driving jigs 50, 50 that have been driven are locked to the distal end of the driving rod 52a, and the cotter insertion hole 8 is formed.
A, 8B.

On the other hand, as shown in FIG. 1, the horizontal cotter pins 5 are supplied to the shift frames 49A and 49B of the retractable frame 41 on the left and right sides of the shield body 1a at the outer peripheral portions of the cotter driving devices 12A and 12B, respectively. Two cotter supply devices 61 serving as a connection component supply unit
A and 61B are provided for each swivel truck 33. Therefore, in the case of three turning carts 33, three cotter supply devices are provided. Note that these horizontal cotter pins 5 are provided with two types, a back side and a front side, and the back side cotter pins 5 are formed so as to be able to pass through the front side fastener 9A and to be fitted and fastened to the rear side fastener 9B. ing.

Next, the assembling operation of the segment will be described.

1. When the new segment 2 is held by the segment holding frame 25 and positioned at the target position by the segment assembling apparatus 11, the swivel carriage 33 guided by the swivel ring rail 32 to a position corresponding to the inter-piece connecting portion 4 is stopped, The positioning retracting cylinder 43 is extended, and the retracting frame 41 is stopped facing the inter-piece connecting portion 4.

2. In the support frames 44A, 44B facing the cotter insertion holes 8A, 8B, the grip levers 51A,
The rear horizontal cotter pins 5 and 5 are gripped by 51B, and the pressing tables 47A and 47B are moved to the cotter insertion holes 8A and 8B, and the rear horizontal cotter pins 5 and 5 are fastened to the front side fastener 9A of the cotter insertion holes 8A and 8B. , 9A.

3. The gripping levers 51A and 51B are released, the push tables 47A and 47B are retracted to their original positions, and further shifted from the pushed position to the refill position by the shift cylinders 48A and 48B. The driving jigs 50, 50 are gripped by the gripping levers 51A, 51B, and returned to the driving position by the shift cylinders 48A, 48B.

4. The pressing tables 47A and 47B are moved to the cotter insertion holes 8A and 8B, and the holding levers 51A and 51B are moved.
The driving jigs 50, 50 gripped by B are inserted into the front side fasteners 9A, 9A from the cotter insertion holes 8A, 8B and pushed in, whereby the back horizontal cotter pins 5, 5 are pushed out to the front end. Are inserted into the back side fastening fittings 9B, 9B. When the gripping levers 51A, 51B are released, the driving cylinders 52A, 52B are activated, and the driving jigs 50, 50 are driven by the driving rods 52a, 52a. , 5 are fitted and fastened to the rear fastening fittings 9B, 9B.

5. When the driving cylinders 52A, 52B are contracted and the driving jigs 50, 50, which have been stopped at the distal ends of the driving rods 52a, 52a, are returned to their original positions.
The driving jig 5 is further moved by the grip levers 51A and 51B.
The pushing tables 47A and 47B are retracted, returned to the pushing position, collected, and further shifted to and held at the refilling position.

6. The retractable frames 41A and 41B are retracted, and the swivel carriage 33 is moved to a position corresponding to the cotter supply devices 61A and 61B.
Is received, it is returned to the original driving position. Then, the front horizontal cotter pins 5 and 5 are
The push tables 47A, 47B are moved to the cotter insertion holes 8A, 8B by the grippers A, 51B, and the tips of the front horizontal cotter pins 5 are inserted into the front fasteners 9A, 9A of the cotter insertion holes 8A, 8B. After the driving cylinder 5
2A, 52B are extended to drive rods 52a, 52a.
As a result, the front horizontal cotter pins 5 and 5 are fitted into the front fastening fittings 9A and 9A.

Here, the front horizontal cotter pin 5
The cotter driving device 1 of the other swivel truck.
2A and 12B may be used.

According to the above-described embodiment, the two swivel trucks 33 that swing and move separately from the segment assembling apparatus 11.
Gripping levers 51A and 51B for gripping the horizontal cotter pins 5 and 5 through the reciprocating frames 41A and 44B and inserting the tips into the fastening fittings 9A and 9B;
Into the fastening fittings 9A, 9B.
52B, the receiving and fastening of the horizontal cotter pin 5 can be performed separately from the receiving, transporting and positioning of the segment pieces 2. Therefore, as compared with the conventional example in which the fastening device is integrally provided in the segment assembling device, the work process can be reduced, and the segment assembling and fastening work can be efficiently performed. In addition, since the cotter supply devices 61A and 61B are provided for each of the two swiveling carriages 33, the time required for delivery of the cotter can be further reduced. Further, the size, weight, and simplification of the segment assembling apparatus 11 can be reduced.

In the above embodiment, the cotter driving devices 12A and 12B, which are fastening devices, are used to fasten the inter-piece connecting portions 4 with the horizontal cotter pins 5; It may be a fastening device for the inter-connection portion 6. Further, although the connecting tool is a cotter pin, the present invention is not limited to this, and a bolt and a nut may be used. Furthermore, the present invention is applied to an automatic assembling apparatus, but is also applicable to a manual assembling apparatus.

[0032]

As described above, according to the first aspect of the present invention, since the fastening device is provided so as to be pivotally movable separately from the segment assembling device, it is possible to perform the positioning operation of the segment pieces by the segment assembling device. In addition, the operation of supplying the connection fittings by the fastening device can be performed separately and in parallel, and the operation efficiency can be improved.

According to the second aspect of the present invention, the fastening operation can be efficiently performed by the plurality of swivel trucks, and the supply of the connection components is performed by the connection component supply units provided for each of the swivel trucks. This can be performed without waiting time, and the efficiency of the fastening operation can be further improved.

According to the third aspect of the present invention, a cotter pin that is relatively heavy and cannot be held in a large amount by the fastening machine requires a large amount of supply work, but is operated separately from the segment assembling apparatus. The supply operation can be smoothly performed by the device.

[Brief description of the drawings]

FIG. 1 is an overall rear view showing an embodiment of a segment assembling facility according to the present invention.

FIG. 2 is an overall side sectional view of the segment assembling equipment.

FIG. 3 is a front view showing a cotter driving device of the segment assembling equipment.

FIG. 4 is a side sectional view showing a cotter driving device of the segment assembling equipment.

FIG. 5 is a side sectional view showing a cotter pin driving state by the cotter driving device.

FIG. 6 is a partially cutaway perspective view showing an assembled state of the segment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shield excavator 2 Segment piece 4 Piece connection part 5 Horizontal cotter pin 8A, 8B Cotter insertion hole 9A, 9B Fastening fitting 11 Segment assembling device 12A, 12B Cotter driving device 32 Swing ring rail 33 Swing carriage 37 Swing movement device 41 Swing movement 41 Frame 43 Positioning retracting cylinders 44A, 44B Supporting frames 47A, 47B Push-in tables 49A, 49B Shift frames 50 Driving jigs 51A, 51B Gripping levers 52A, 52B Driving cylinders 54A, 54B Fasteners 61A, 61B Cotter feeder

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 000005119 Hitachi Zosen Corporation 1-89, Minamikohoku, Suminoe-ku, Osaka-shi, Osaka (72) Inventor Kazuhiko Matoba 2-15-2 Konan, Minato-ku, Tokyo Obayashi Corporation Tokyo headquarters (72) Inventor Hidetaka Hasegawa 2-152-2 Konan, Minato-ku, Tokyo Obayashi Corporation Tokyo headquarters (72) Inventor Masahiro Miyazaki 2-226 Taiseicho, Omiya-shi, Saitama Pref. Inside the Kumagaya Gumi Kita Kanto Branch (72) Motohiko Shirakawa 2-10-26 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industry Co., Ltd. (72) Taiji Hanaoka 1-7-7 Minami Kohoku, Suminoe-ku, Osaka-shi, Osaka No. 89 Hitachi Zosen Corporation (72) Inventor Masaki Kaido 1-7-89 Minami Kohoku, Suminoe-ku, Osaka-shi, Osaka F-term in Hitachi Zosen Corporation ) 2D055 BA01 BB01 GA04 GB01 GB03 GB07 GB08 GB09 GC02 LA12

Claims (4)

[Claims] 1. A segment assembling apparatus which is disposed at a rear portion of a shield body of a shield excavator and transfers and positions a segment piece to a predetermined position, and a connecting portion between a positioned existing segment piece and a newly installed segment piece is connected by a connecting part. A shield assembling machine equipped with a fastening device, comprising: a swing ring rail centered on a shield axis disposed on a shield body at an outer peripheral portion of the segment assembling device; A swivel truck movably arranged on a swivel ring rail, an egress / retract frame provided on the swivel vehicle so as to be able to move in and out in the radial direction, and a connecting part mounted on the elongate / retract frame at the connecting part to connect the segments. A segment assembling facility for a shield excavator, comprising a fastening machine for fastening. 2. The shield according to claim 1, wherein a plurality of slewing vehicles are arranged on the slewing ring rail, and a plurality of connecting component supply portions are respectively installed on the shield body side corresponding to the slewing vehicles. Excavator segment assembly equipment. 3. The connecting part is a cotter pin which is driven into the connecting portion of the segment piece and is fastened. The fastening machine is a driving device which holds the cotter pin and inserts the cotter pin into the connecting portion. 3. A segment assembling facility for a shield machine according to claim 1, wherein the segment assembling apparatus comprises: 4. The cotter pin is a horizontal cotter pin which is driven into the inter-piece connection portion of the segment piece adjacent to the shield body in the axial direction of the shield to form a segment ring. 4. A segment assembling facility for a shield machine according to claim 3, wherein the connecting portion is constituted by a driving cylinder which drives the shield in the axial direction of the shield.