JP3422105B2 - Electa device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erector device for assembling a tunnel lining segment carried into a shield machine into a ring shape.

[0002]

2. Description of the Related Art Heretofore, as an erector device for positioning and assembling a segment carried into a shield machine, those disclosed in, for example, JP-A-3-18196 and JP-A-5-18196 are known. Has been. This type of erector device includes a pressing jack 7 as shown in FIGS. 4 and 5, a front-rear sliding jack, and a turning motor 1.
5, the suspension beam 10 and the guide rod 6 are rigidly contacted.

[0003]

In such an erector device, an assembly segment 1 suspended from an erector 2 is used.
When 2 is adjusted to the posture of the existing segment 16, there is no posture correction mechanism, and an assembling method is forced. For example, when the posture of the assembly segment 12 gripped in FIG. 6 is corrected in the rolling direction, first, the positions of the assembly segment 12 and the adjacent side segment 17 are aligned and the piece side bolt 1
After attaching 8, the pressing jack 7 is moved in the direction of arrow E, and the assembly segment 12 is rolling-corrected (in the direction of arrow R in the drawing) with the bolt 18 attached to the piece side as a substantial rotation center, and the target segment posture 12 '. (Illustrated by a broken line). In this case, the joint portion A between the assembly segment 12 and the adjacent segment 17 is twisted, which may damage the segment. Further, if the erector 2 is equipped with a segment attitude correction mechanism, it generally becomes a large-scale device such as an automatic assembly device, resulting in an expensive erector.

In view of the above points, an object of the present invention is to provide an erector capable of assembling segments by performing rolling and yawing posture corrections without adversely affecting the segments.

Another object of the present invention is to provide an erector that does not require a special posture correction device.

[0006]

SUMMARY OF THE INVENTION The present invention is a tunnel cover installed in a shield body and provided with a moving device in a radial direction of the shield body and a moving device in a digging direction of the shield body, the tunnel cover being carried into the shield digging machine. Conveying to the assembly position by gripping the working segment, in an erector device for assembling in a ring shape, by the moving device in the shield body radial direction, the posture of the segment is corrected around the axis of the shield body excavating direction, Rolling is performed, and yawing for correcting the posture of the segment around the axis in the radial direction of the shield body is performed by the moving device in the shield body excavating direction.

[0007]

According to the erector device of the present invention, the postures of rolling and yawing are corrected by the pressing jack and the front-rear sliding jack of the erector.

When these jacks are actuated so that a stroke difference occurs between the two pressing jacks on the left and right of the moving device in the radial direction of the shield body, the suspension beam tilts according to the stroke difference, and the segment is assembled. It is in a state of rolling with respect to the device.

On the other hand, when a stroke difference is generated between the two left and right front and rear sliding jacks of the device for moving the shield main body in the direction of excavation and these jacks are operated, the suspension beam tilts in accordance with the stroke difference. , The segment is in a yawing state with respect to the assembling apparatus.

[0010]

1 to 3 show an embodiment of the present invention, in which 1 is a shield body. Reference numeral 2 denotes an assembling device, which is supported by the inner shell member 1a of the shield body 1 via rollers 4 so as to freely rotate. Reference numeral 3 is an erector ring, which is a ring having a rectangular cross section, and a gear 3a is attached to an inner diameter portion thereof. An arm 5 is attached to the tail side of the shield body 1 so as to project rearward. Reference numeral 4 denotes a roller, which is a bracket 1 provided on the inner shell member 1a of the shield body 1.
It is supported by b and is attached to a plurality of locations on the outer diameter portion of the erector ring 3 to rotatably support the erector ring 3.

Reference numeral 5 denotes an arm, which is composed of a pair of left and right arms having a rectangular cross section and attached to the tail side end surface of the elector ring 3 so as to project toward the tail side. Reference numeral 15 is a swing motor, which is attached to the inner shell member 1a of the shield body 1 and is attached to the output shaft of the pinion 16, and the gear 3a.
The elector ring 3 is swung via.

In FIG. 1, a plurality of linear bearings 5a for forward and backward sliding are attached respectively to the outer sides of the left and right arms 5 in the radial direction in parallel with the excavation direction of the shield, and the rod guides 8 are attached via the linear bearings 5a.

The rod guide 8 is attached to the arm 5 via a linear bearing 5a for sliding forward and backward, and slides in the shield excavation direction. A through hole is provided substantially in the center in the pressing direction, and the rod 6 is slidably inserted in the pressing direction.
The pressing jack 7 is attached to the opposite side (outer diameter side) of the linear bearing in the radial direction. A front-back sliding jack 13 is attached to the end face of the guide on the face side. The pair of left and right rod guides are guided by the linear bearings 5a by the front and rear sliding jacks 13 and can slide independently in the front and rear direction.

A rod frame 9 has a rod 6 mounted on its upper surface and a pressing jack 7 mounted on its side. On the lower surface, there is a member 9a for suspending the suspension beam 10 with pins 11. The left and right rod frames 9 slide in the radial direction while being guided by the guide rods 6 as the pressing jacks 7 expand and contract.

Reference numeral 10 denotes a suspension beam, which is rotatably suspended from the left and right rod frames 9 by a pin 11. A member 1 for suspending the segment 12 on the lower surface of the beam
There is 0a. In addition, a steady rest 10b for preventing swinging of the suspended segments 12 is attached.

Reference numeral 12 denotes an assembly segment, which is a suspending metal 13 attached to the segment 12 and a suspending member 10.
The pin a is suspended from the erector 2 by the pin 14.

Next, the operation of the embodiment of the present invention will be described. First, the action in the longitudinal sliding direction will be described. In FIG. 3, when these jacks are operated so that the stroke difference L1 is generated between the two front and rear sliding jacks 13, 13, the left and right rod guides 8 and 6 are both positioned with the stroke difference L1.

For example, the center of the left rod 6 in FIG.
When the center of the right rod 6 is D and the distance between C and D is L2, the center D of the right rod 6 when a stroke difference L1 occurs is a point on the radius L2 with the center point C of the left rod as the center. Move to D '. As a result, the suspension beam 10 is tilted by θY. This is a state in which the segment 12 yaws the angle θY with respect to the assembling apparatus 2.

If the two jacks 13, 13 are actuated with the same stroke in the same direction and at the same time, the segment 12 moves in parallel to the assembling device 2 in the front-rear direction. In this way, the front-rear sliding jack 13 can move the segment 12 in the front-rear direction and correct yawing.

Next, the operation in the pressing direction will be described. In FIG. 1, when these jacks are operated so that the stroke difference L3 is generated between the two pressing jacks 7, 7 on the left and right, both the rod 6 and the rod frame 9 have a stroke difference L3.
Positioned with 3.

For example, in FIG. 1, the center of the left pin 11 is A,
When the center of the right pin 11 is B and the distance between A and B is L4, when the stroke difference L3 occurs, the center B of the right pin 11 is a point B on the radius L4 centered on the center point A of the left pin 11. Move to '. This causes the suspension beam 10 to tilt by θR. This is a state in which the segment 12 rolls at an angle θR with respect to the assembling apparatus 2.

If the two jacks 7 are operated with the same stroke in the same direction and at the same time, the segment 12
Translates radially with respect to the assembly device 2. In this manner, the pressing jack 7 can move the segment 12 in the radial direction and correct the rolling.

[0023]

According to the present invention, the following effects can be obtained. 1) Since the posture of rolling and yawing can be corrected by the pressing jack and the front and rear sliding jacks, it is not necessary to adjust the posture by pulling the segments together. 2) Since the posture can be corrected without rubbing the segments together, the segments can be assembled without damaging the segments. 3) Since the posture is corrected using the pressing jack and the front and rear jacks that have been conventionally equipped, no new posture correcting mechanism or actuator is required, which is economical. 4) It can also be used for automatic segment assembly equipment.

[Brief description of drawings]

FIG. 1 is a front view seen from the tail side of a shield machine equipped with an automatic segment assembly apparatus of the present invention.

FIG. 2 is a view on arrow I-I of FIG.

FIG. 3 is a view taken along the line II-II in FIG.

FIG. 4 is a front view of a conventional erector.

5 is a view taken along the line III-III in FIG.

FIG. 6 is an explanatory view of a situation of assembling a segment by a conventional erector.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Shield main body, 2 ... Assembly device, 3 ... Erector ring, 4 ... Roller, 5 ... Arm, 6 ... Rod, 7 ... Pushing jack, 12 ... Segment, 13 ... Front-back sliding jack

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukihisa Hirasawa 650 Kazunachi-cho, Tsuchiura-shi, Ibaraki Hitachi Construction Machinery Co., Ltd. inside the Tsuchiura Plant (72) Ken Ken Kamei, 650 Jinmachi-cho, Tsuchiura-shi, Ibaraki Hitachi Construction Machinery Co. Inside the Tsuchiura Plant (72) Inventor Kunihashi Hashimoto 650 Jinrachicho, Tsuchiura City, Ibaraki Hitachi Construction Machinery Co., Ltd.Tsuchiura Plant (72) Inventor Takami Kusagi 650 Jinmachi, Tsuchiura City, Ibaraki Hitachi Construction Machinery Co., Ltd. Tsuchiura Plant (56) References JP-A-4-327699 (JP, A) JP-A-5-18196 (JP, A) Actual Kaihei 6-40100 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E21D 11/40

Claims (4)

(57) [Claims] 1. A shield lining segment installed in the shield body, comprising a moving device in a radial direction of the shield body and a moving device in a digging direction of the shield body, and holding a segment for tunnel lining carried into the shield digging machine. Transport it to the assembly position,
In an erector device for assembling in a ring shape, by the moving device in the shield body radial direction, the segment is posture-corrected around the axis of the shield body digging direction, rolling is performed, and the moving device in the shield body digging direction is used. The yawing is performed to correct the posture of the segment about the axis in the radial direction of the shield body. 2. A device for moving the shield in the radial direction, wherein left and right support portions of a suspension beam suspending a segment are extended and contracted in the same direction in the radial direction of the shield body,
Alternatively, the erector device according to claim 1, wherein the erector device is configured to be capable of expanding and contracting in mutually opposite directions. 3. The suspension beam and the left and right support portions are
3. The erector device according to claim 2, wherein the erector device is pin-coupled via a rod frame connected to the pressing jack. 4. The moving device for moving the shield main body in the digging direction, the left and right support portions of the suspension beam that suspends the segments are expanded and contracted in the same direction toward the digging direction of the shield main body or in opposite directions. The erector device according to claim 1, wherein the erector device is configured to be capable.