JP3395430B2 - Electa device and shield machine using the same - 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 in a shield machine into a ring shape, and a shield machine using the same.

[0002]

2. Description of the Related Art Hitherto, as an erector device for assembling segments, Japanese Patent Laid-Open No. 3-18196 and Japanese Patent Publication No. 6-3
The one described in Japanese Patent No. 1555 is known. As shown in FIGS. 15 and 16, this type of erector device has two arms 5 of rectangular cross section on the tail side at the tail side end surface of the erector ring 3 rotatably supported on the shield body 1 by a plurality of rollers 4. It is protruding and attached in a cantilever shape. The rod 6 penetrates into this, and the suspension beam 10 is supported by the pressing jack 7. And hanging beam 1
The assembly segment 18 is hung from the lower part of 0 through the metal fitting 13. As described above, in the erector device having the conventional structure, the load applied to the erector device, that is, the weight of the segment 18, the own weight of each member such as the suspension beam 10 and the external force (reaction force of the pushing jack) are all supported by the two arms 5 and the erector ring 3 I have told you.

[0003]

In the erector device having the above-mentioned conventional structure, the size of the arm 5 that can be manufactured is limited by the outer diameter Do and the inner diameter Di of the erector ring 3.
There was also a limit in securing the necessary rigidity as a load support.

On the other hand, in recent years, the weight of each segment of the elector device has tended to increase from several tons to 10 tons with the increase in diameter of the shield. In addition, the weight of the elector device also increases accordingly. Then, the load on the arm increases more and more, and the arm shape of the conventional structure cannot cope with the load.

Further, the automation of segment assembly has been rapidly promoted due to the improvement of the segment assembly work environment.
In the arm of the automatic assembly apparatus, bending and deformation of the arm due to the load are extremely inconvenient in positioning control, and it is necessary to increase the rigidity of the arm.

In addition to the above, the arm of the conventional elector device is usually manufactured separately for the right and left and assembled to the erector ring, but the parallelism of the rod and the parallelism of the through hole of the arm are accurately manufactured and assembled. Sometimes it was necessary to make sufficient adjustments and spend time.

As another erector device, an actual flat flat 4-9
There is a 2098 publication. In this case, a guide as an arm is projected from the erector drum to support the movable frame, and the shape of the guide is considerably large, which further increases the weight of the erector device.

An object of the present invention is to provide an erector device and a shield machine in which the rigidity of the arm can be increased and the bending and deformation of the arm can be reduced.

Another object of the present invention is to reduce the amount of bending / deformation of the arm and improve the positioning accuracy in the automatic segment assembly apparatus.

Another object of the present invention is to provide an erector device and a shield machine which have good manufacturing accuracy and require no adjustment time when assembling the device.

Another object of the present invention is to provide a shield machine having a small number of hoses and cables of ancillary equipment and an effective internal space.

[0012]

DISCLOSURE OF THE INVENTION The present invention relates to an erector device for assembling a tunnel lining segment carried into a shield machine into a drill hole surface in a ring shape, wherein a roller is provided inside an inner shell member of the shield machine body. From the surface on the tail side of this eclectic ring, which is supported by swiveling freely via the
Also has a length where the hanging beam and gripping member, which will be described later, can be arranged.
A cylindrical ring arm having an extending portion and the open end perpendicular to the axis of the sheet <br/> Rudo shield machine main body to the end portion of the extending portion extending rearwardly I, behind the ring arm A suspension beam which is disposed on the outer periphery of the extending portion and has a gripping member for grasping a segment at the tip, and the suspension beam whose one end is parallel to a straight line orthogonal to the axis of the ring arm. Two rods that are slidably supported by rod guide members provided at opposite positions on the outer circumference of the ring arm, and one end is coupled to the suspension beam.
The other end is connected to a side portion of the rod guide member to move the suspension beam in the radial direction of the ring arm.
The present invention is characterized by including a book pressing jack and a turning motor that turns the elector ring via a pinion that rotates the internal gear.

Another feature of the present invention is that the arm portion of the erector device is constituted by a ring arm, and an accessory such as a hydraulic device or a control panel is provided outside the ring arm and at a position facing the suspension beam. It is characterized by the installation of equipment.

Another feature of the present invention is that the arm portion of the erector device of the shield machine is a ring arm, and a screw conveyor for transporting earth and sand or a muddy water transport pipe for transporting muddy water is provided in the inner diameter of this ring arm. It is characterized by having done.

[0015]

According to the present invention, the tail side of the elector ring is
A ring arm having an extension extending rearward from the plane
The suspension beam and the gripping member are arranged on this rearward extending portion.
Since it is installed, it is possible to provide an erector device and a shield machine , the rigidity of which is dramatically increased. In addition, Li
As a result of the use of the ring arm, it is possible to provide an erector device and a shield machine that have good manufacturing accuracy and do not require adjustment time when the device is assembled.

Further, according to the present invention, by installing auxiliary equipment such as a hydraulic device and a control panel outside the ring arm and at a position facing the suspension beam, the shield body and the erector device are connected. It is possible to reduce the number of hoses and cables used as auxiliary equipment, and it is possible to effectively use the space above the ring arm.

Further, the space inside the ring arm can be effectively used by disposing the screw conveyor for transporting earth and sand and the muddy water transport pipe for transporting muddy water inside the arm of the erector device of the shield machine. it can.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In the figure, 1 is a shield body. Two
Is an erector device and is an inner shell member 1a of the shield body 1.
It is rotatably supported by a roller 4. 3 is an elector ring, both of which has a circular outer circumference and inner diameter,
As shown by the diagonal lines in Fig. 1, a rectangular vertical section is formed between the outer circumference and the inner diameter.
An internal gear 3a is attached to the inner diameter of the ring having a surface . A ring arm 5 is attached to the tail side of the elector ring.

The ring arm 5 is a substantially donut-shaped ring that is attached to the tail end surface of the eclectic ring 3 so as to project toward the tail side. The inner diameter of the ring arm 5 is substantially equal to the inner diameter of the elector ring 3, and
Is almost concentric with. In this embodiment, the ring arm 5 is described as a circular hollow ring, but it is not limited to this shape and may be, for example, a hollow rectangular shape.

Rod guide members 5b are provided in parallel to each other on the left and right sides of the tip end of the ring arm 5. The rods 6 are slidably inserted in the guide holes formed in the left and right guide members 5b in the vertical direction in the drawing. The head side of the pressing jack 7 is attached to the side portion of the guide member 5b.

A frame 5d is provided outside the ring arm 5 and at a position facing the suspension beam 10.

The jack 7 of the pressing drive device is mounted between the ring arm 5 and the suspension beam 10, and the suspension beam 10 is guided by the rod 6 and expanded and contracted in the vertical direction in the figure.

The suspension beam 10 is a substantially gate-shaped beam, and rods 6 are attached to the left and right, and the rods 6 are inserted into the guide members 5b of the ring arm 5. Rod 6
The rod side of the pressing jack 7 is attached to the side portion of the.

Reference numeral 11a is a holding member for the segment 18 attached to the central portion of the lower surface of the suspension beam 10.
The segment 18 is suspended from the grasping member 11a by the grasping metal fitting 13 and the pin 26 attached to the inner diameter side of 8.

Reference numeral 20 is a swing motor, and the shield body 1
The erector ring 3 is swung via the pinion 21 attached to the inner shell member 1a of FIG.

In this embodiment, the segment 18 is grasped by the grasping member 11a and assembled at a predetermined position. At this time, the weight of the segment 18, the weight of each member below the suspension beam 10, or the reaction force of the pressing force of the pressing drive device 7 is supported by the ring arm 5 having a large rigidity via the rod guide member 5b. , Is transmitted to the shield body 1 via the elector ring 3 and the roller 4.

According to the present invention, by connecting the left and right arm portions in a ring shape and integrating them as the ring arm 5,
The rigidity of the arm part increases dramatically. Further, by integrating the left and right arm portions, there is an advantage that the manufacturing accuracy is good and the adjustment time at the time of assembling the device is shortened.

On the frame 5d located on the opposite side of the suspension beam 10, auxiliary equipment such as hydraulic equipment and control panel is installed. A pressing drive device, for example, a hydraulic power source of a hydraulic jack, is composed of a pump, an electric motor, and an oil tank. Reference numeral 31 is a power board of the hydraulic power source 30, and 32 is hydraulic equipment such as a direction switching valve. With the configuration of the present invention, power is supplied from the shield machine main body side for driving the drive devices attached to the revolving structure part by the power cable 1.
I need a book.

A conventional erector device which is not equipped with a hydraulic power source and a power board requires at least two hydraulic hoses. Power is supplied from the shield body 1 side to the eclectic device 2 side that is a rotating body, and is supplied via a cable reel or a hose reel (not shown).
As the number of cables and hoses increases, the number of cable reels and hose reels also increases, making it difficult to process the mounting positions. Therefore, it is better that the number of power supplies such as cables and hoses is as small as possible. In particular, when it is necessary to mount a large number of drive devices and sensors on the revolving structure such as an automatic assembly device, the number of cables and hoses is large, and the processing is difficult. According to the invention,
By using the pair of arm portions as the ring arms, the central upper portion of the ring arms can be used as the installation location of the auxiliary equipment, so that the cables and hoses can be shortened or reduced.

As shown in FIGS. 4 and 5, a notch 5c may be provided in a part of the ring arm 5 to have an open cross section. By doing so, the ring arm 5 does not interfere with the work of loading the segment 18 by the transport hoist 28, and the work can be performed without any problem.

Another embodiment of the present invention will be described with reference to FIGS.

6 to 7, 4 is a turning wheel,
The outer ring is attached to the inner shell member 1a of the shield body 1 and the inner ring is attached to the erector ring 3, and the entire assembling apparatus 2 is swung.
The internal gear 4a is located inside the inner ring. Reference numeral 5 denotes a ring arm, and a member 5b protruding outward in the left and right radial directions of the ring arm is provided in parallel with the Z axis over the entire length of the ring arm 5 in the Z axis direction. Plural Z-axis linear bearings 5a are attached to the end faces of the parallel portions of the left and right members 5b of the ring arm 5, respectively, and the rod guides 8 and 8'are attached thereto. 6,
6'is a rod, one end of which is attached to the rod base 9, 9 '. Anti-rotation keys 6a, 6a 'in the holes of the rod guides 8, 8'and the sliding parts of the rods 6, 6', respectively.
Is provided to prevent rotation between the rod guides 8 and 8'and the rods 6 and 6 '. As a method of restricting this rotation, two rods may be provided on each of the left and right sides (not shown).

The rod guides 8 and 8'are attached to the ring arm 5 via a Z-axis linear bearing 5a,
It slides in the axial direction. A through hole is provided in the Y-axis direction substantially at the center of the rod guides 8 and 8 ', and rods 6 and 6'are slidably inserted in the Y-axis direction. Pressing drive devices 7 and 7'are attached to the outside of the rod guides 8 and 8'in the radial direction and to the opposite side (outer diameter side) of the linear bearing.

Reference numerals 9 and 9'indicate rod bases, rods 6 and 6'are provided on the upper surface, and drive devices 7 and 7'for pressing are provided beside them.
Is attached. On the lower surface, a transverse beam 13 is attached to the pin 11,
There are members 9a, 9a 'for hanging at 11'.

As shown in detail in FIG. 11, on the side of the rod base 9, the member 9a, the pin 11, and the member 1 of the lateral beam 13 are provided.
It is attached without play between 3a and 3a. However, the pin 11 has a spherical bearing 11 on the lateral beam member 13a.
It is swingably attached via a. The spherical bearing 11a is positioned and attached by a spacer 11c so that there is no play in the axial direction of the pin.

As shown in detail in FIGS. 9 and 10, the side of the rod base 9'is composed of a member 9a ', a pin 11', a member 13b of the lateral beam 13, a spherical bearing 11a 'and a slider 11b. The pin 11 'is attached so that the member 9a' has no play.

The lateral beam 13 includes the left and right rod bases 9,
It is suspended by pins 11 and 11 'on 9'. The lower surface has an X for guiding the horizontal frame 15 in the X-axis direction.
A plurality of shaft linear bearings 14 are attached. Also, brackets 13c are attached to both ends of the lower surface,
The drive device 10 for rotating around the X-axis is attached to this. A bracket and an X-axis drive device 19 are attached to the lower surface of the lateral beam 13.

The member 13b of the lateral beam 13 is provided with a hole 12 elongated in the X-axis direction. The slider 11b is attached to the hole 12 so as to be movable in the X-axis direction without any play in the Y-axis direction. The slider 11b is a member 13b
And is guided by, for example, the convex and concave grooves 13c. Groove 13
c may be a linear bearing. A pin 11 'is attached to the slider 11b via a spherical bearing 11a'. The spherical bearing 11a 'is positioned and attached by a spacer 11c so that there is no play in the axial direction of the pin. The left and right rod bases 9 and 9'slide in the Y-axis direction while being guided by the guide rods 6 and 6'by the expansion and contraction of the pressing drive devices 7 and 7 '.

A bracket 9b for mounting the X-axis turning drive unit 10 is attached to the lower face of the face, and the X-axis turning drive unit 10 is attached to the bracket 9b toward the tail side.

A horizontal frame 15 is suspended by a linear bearing 14 for the X-axis so as to be slidable in the X-axis direction. On the upper portion of the horizontal frame 15, the X-axis drive device 1 is provided.
9 is attached by a pin 19a. A segment guide 15 a is provided below the horizontal frame 15.

Reference numeral 15a denotes a segment guide, which is attached to the lower portion of the horizontal frame 15 and is provided with a bolt fastening device 16 and a gripping device 17 for gripping the segment 18.

Further, Z-axis driving devices 16 and 16 'are attached to the end faces of the rod guides 8 and 8'on the cutting face side. The pair of left and right rod guides 8 and 8 ′ are guided by the linear bearings 5a by the Z-axis drive devices 16 and 16 ′, and slide independently in the Z-axis direction.

In this embodiment, the segment 18 is grasped by the grasping device 17 and the segment 18 is assembled at a predetermined position. At this time, the weight of the segment 18, the weight of each member below the rod guides 8 and 8 ', or the reaction force of the pressing force of the pressing drive devices 7 and 7'is transmitted through the rod guides 8 and 8'and the linear bearing 5a. It is supported by a ring arm 5 having great rigidity and is transmitted to the shield body 1 via the elector ring 3 and the swivel wheel 4.

Also in this embodiment, the rigidity of the arm portions is dramatically increased by connecting the left and right arm portions in a ring shape and integrating them. Further, there is an advantage that the manufacturing precision is good and the adjustment time at the time of assembling the device is shortened.

Next, an embodiment in which the assembling apparatus of the present invention is mounted on a shield machine will be described with reference to FIGS. First, the embodiment of FIGS. 12 and 13 is an example in which the assembling apparatus of the present invention is mounted on a known earth pressure type shield machine equipped with a screw conveyor. Reference numeral 22 denotes a working communication path, which extends from the inner shell 1a of the shield body to the tail side and is a communication path with a rear working floor (not shown) that penetrates the inner diameter portion of the ring-shaped arm and is communicated rearward. Reference numeral 23 denotes a screw conveyor, which is a well-known conveyor for conveying sand and is attached to the shield body 1 and extends rearward through the inner diameter portion of the ring arm 5. According to this embodiment, even if the pair of left and right arms becomes the ring arm 5, there is no problem in disposing the screw conveyor in the shield body.

The embodiment of FIG. 14 is an example in which the assembling apparatus of the present invention is mounted on a muddy water shield machine. Numeral 24 is a muddy water pipe, which is a well-known muddy water transport pipe and is not shown in the shield body 1
Attached to the partition wall of the muddy water chamber, and extends rearward through the inner diameter portion of the ring arm 5. Also in this embodiment, even if the pair of left and right arms become the ring arm 5, there is no problem in disposing the mud pipe 24 in the shield body. In addition, in the example of FIG. 14, the cross-sectional shape of the communication passage 22 is illustrated as a rectangle, but it may be a cylindrical shape.

[0048]

According to the present invention, the following effects can be obtained. (1) Extends rearward from the tail-side surface of the elector ring
A ring arm with an extension
Since the suspension beam and the gripping member are arranged in the part, the rigidity thereof is increased, and the bending and the deformation are reduced . As a result, hanging
Positioning accuracy of the segments by the beam and the gripping member are improved.

(2) From the tail side surface of the elector ring
Providing a ring arm having an extending portion extending rearward,
A suspension beam and a gripping member are arranged in this rearward extending portion.
Therefore, its rigidity is increased, Ru can handle the increase in the segment weight due to large diameter of the shield.

(3) Since the ring arm is used, it is possible to accurately machine the mounting portions of the left and right Z-axis (front and rear) linear bearings attached to the arm and machine the left and right rod insertion holes in the same part. The parallelism adjustment of the left and right arm during their assembly that Do not required.

[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 according to an embodiment of the present invention.

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

FIG. 3 is a view on arrow III-III in FIG.

FIG. 4 is a longitudinal sectional view of a main part of a shield machine according to another embodiment of the present invention.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a front view of a shield machine equipped with an erector according to another embodiment of the present invention.

7 is a sectional view taken along line VII-VII of FIG.

8 is a sectional view taken along line VIII-VIII of FIG.

9 is an enlarged view of part A of FIG.

10 is a sectional view taken along line XX of FIG.

11 is an enlarged sectional view of a B part in FIG.

FIG. 12 is an explanatory view showing a state in which the erector of the present invention is mounted on a shield machine having a screw conveyor.

FIG. 13 is a view on arrow CC in FIG.

FIG. 14 is an explanatory view showing a state in which the erector of the present invention is mounted on a shield machine having a mud discharge pipe.

FIG. 15 is an explanatory diagram of a conventional erector.

16 is a view on arrow DD of FIG.

[Explanation of symbols]

2 ... Assembling device, 3 ... Erector ring, 4 ... Roller, 5 ...
Ring arm, 6, 6 '... Rod, 7, 7 ... Pressing drive device', 9, 9 '... Rod base, 10 ... X-axis rotation drive device, 13 ... Beam, 14 ... X-axis linear bearing, 15 ... Horizontal frame, 15a ... Segment guide, 1
6 ... Z-axis drive device, 17 ... gripping device, 18 ... segment, 19 ... X-axis drive device,

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ken Kamei               Hitachi Construction Machinery, 650 Kandamachi, Tsuchiura City, Ibaraki Prefecture               Tsuchiura Factory Co., Ltd. (72) Inventor Hisashi Hashimoto               Hitachi Construction Machinery, 650 Kandamachi, Tsuchiura City, Ibaraki Prefecture               Tsuchiura Factory Co., Ltd. (72) Inventor Takami Kusagi               Hitachi Construction Machinery, 650 Kandamachi, Tsuchiura City, Ibaraki Prefecture               Tsuchiura Factory Co., Ltd. (72) Inventor Shigeo Ito               3 34-3 7 Minamiotsuka, Toshima-ku, Tokyo               Standing Machine Design Co., Ltd.                (56) References Japanese Patent Publication No. 6-54079 (JP, B2)                 Actual public Sho 48-10987 (JP, Y1)

Claims (6)

(57) [Claims] 1. An erector device for assembling a tunnel lining segment, which has been carried into a shield machine, into a ring shape on the surface of an excavation hole, wherein the shield machine is rotatably supported by rollers inside an inner shell member of the shield machine body. An erector ring having an internal gear attached to an inner diameter portion thereof, and an extending portion extending rearward from the tail side surface of the erector ring by a length capable of disposing a suspension beam and a grasping member described later. A cylindrical ring arm having an open end at the end of the extended portion and an open end orthogonal to the axis of the shield machine main body, and a rear end of the ring arm is disposed on the outer periphery of the arm, and a grip for segment gripping is provided at the tip. A suspension beam having a member for operation, and one end connected to the suspension beam so as to be parallel to a straight line orthogonal to the axis of the ring arm, and the other end side of the outer periphery of the ring arm. Two rods slidably supported by a rod guide member provided in a facing position, one end of which is connected to the suspension beam, and the other end of which is connected to a side portion of the rod guide member to suspend the suspension. An eclectic device comprising: two pressing jacks for moving a beam in a radial direction of the ring arm; and a slewing motor for slewing the erector ring via a pinion for rotating the internal gear. 2. The ring arm according to claim 1, wherein the open end on the tail side of the ring arm has a notch portion which allows a suspension rope of a transport hoist provided in the ring arm to come in and out. Electa device. 3. The erector device according to claim 1, wherein auxiliary equipment including a hydraulic device, a control panel, and the like is installed outside the ring arm and at a position facing the suspension beam. 4. A shield having an erector device according to claim 1, wherein ancillary equipment such as hydraulic equipment and a control panel is installed on the ring arm and on the side opposite to the suspension beam. Excavator. 5. A shield machine having an erector device according to claim 1, wherein a screw conveyor for carrying earth and sand is arranged in an inner diameter portion of the ring arm. 6. A shield machine having an erector device according to claim 1, wherein a muddy water transport pipe for muddy water transport is provided in an inner diameter portion of the ring arm.