JP2010189991A - Erector device of shield machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save a space and manufacturing cost by downsizing and simplifying the structure of an erector device of a shield machine. <P>SOLUTION: This erector device of a shield machine includes chord-like members 13 vertically extending at both sides of a rotary drum 11, a body frame including lifting frames 15 positioned rearward apart from the chord-like members 13 and tilted frames 16 which diagonally extend from bottom ends of the lifting frames 15 and extend by a predetermined length from the lifting frames 15 rearward, segment holding bodies 19 connected to the tilted frames 16, a parallel link mechanism for connecting the lifting frames 15 to the chord-like members 13 so as to be liftable, a hydraulic cylinder for lifting the body frame 14 by vertically oscillating the mechanism, a sliding member 20 for connecting the segment holding bodies to the tilted frames 16 slidably by a predetermined stroke in the longitudinal direction, and a hydraulic cylinder 21 for longitudinally moving and driving the segment holding bodies relative to the tilted frames 16 through the mechanism. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an erector apparatus for a shield machine, and in particular, a front / rear sliding mechanism for sliding a segment gripping body back and forth is disposed at a position deviated in the circumferential direction from the vicinity of a segment hanging hardware, thereby improving workability. The present invention relates to an erector apparatus that can secure a work space.

  The shield machine has an erector device that assembles a segment covering the inner surface of the tunnel into a ring shape, and sequentially assembles the segments one ring at a time by the erector device according to the tunnel excavation to cover the inner surface of the tunnel.

  There are various types of conventional erector devices, such as portal erector devices, axial link erector devices, radial link erector devices, etc., portal erector devices are used for heavy segments, and axial link erector devices are smaller in diameter. Adopted in light segment of shield, radial link type erector device is adopted in special segment.

  Since it was necessary to design / manufacture the erector device according to the type of segment, the design / manufacturing cost of the erector device was expensive, which was a high cost factor for the shield machine. Recently, there has been a demand for an erector device that can handle a small-diameter shield while being a heavy segment and a special segment.

  In the segment assembly device (elector device) of the shield machine described in Patent Document 1, the elevating device A, the erector head device B, the elevating mechanism C, and the rolling mechanism D are attached to the swiveling ring 47 provided inside the shield body 10. , Fine turning mechanism E, yawing mechanism F, sliding mechanism G, pitching mechanism H and the like are equipped. This erector apparatus is compactly configured so as to secure the space inside the shield body 10 as much as possible, and facilitates copying and pressing to copy the segment to the existing segment.

  In the segment positioning device (elector device) described in Patent Document 2, when the segment is in the reference posture when assembling the segment at the lowermost part of the tunnel, the right side portion of the swiveling drum, and the vertical swinging body disposed behind it Are connected by a pair of hydraulic servo cylinders in a parallel link, and a lifting hydraulic servo cylinder for raising and lowering the swinging body is provided, and the swinging body is lifted and lowered by the lifting hydraulic servo cylinder. The right end portion of the segment gripping portion is connected to the lower end portion of the rocking body via a tangential movement mechanism, and the segment gripping portion faces the lowermost portion of the tunnel. The segment gripping portion is provided with a gripping mechanism, a yawing fine adjustment mechanism, and a rolling fine adjustment mechanism.

JP-A-8-128300 Japanese Patent No. 4161500

  In the erector apparatus of Patent Document 1, the structure is complex because the segments can be adjusted in all directions, the number of parts such as a plurality of link members and a plurality of hydraulic cylinders is large, and the manufacturing cost is high. In addition, since a plurality of link members and a plurality of hydraulic cylinders are arranged in the circumferential direction of the tunnel or in the direction close thereto, the operation when moving the segment in the tunnel radial direction becomes complicated and slow, and the efficiency is increased. It is difficult.

  In particular, as with conventional erector devices, a rolling mechanism, yawing mechanism, sliding mechanism, pitching mechanism, etc. are provided at or near the segment gripping frame, which increases the complexity and weight of the structure and increases the efficiency of segment assembly. It is difficult to increase. The operation for connecting the pin member to the hanging object of the segment to be held is also not easy because it is performed in a state where it is difficult to see in the narrow space below the segment gripping frame, as in the case of the conventional erector apparatus.

  In the erector device of Patent Document 2, the sliding mechanism for moving the segment gripping part back and forth with respect to the swinging body is omitted, and the swinging body and the segment gripping part are moved up and down and back and forth by three hydraulic servo cylinders. It is a configuration. Therefore, since it is almost impossible to move the segment gripping part back and forth independently of the vertical movement, the control for the three hydraulic servo cylinders during the forward and backward movement becomes very complicated, and the work efficiency of the segment assembly is increased. It is difficult. In addition, three hydraulic servo cylinders, a guide mechanism, and the like are necessary, and the production cost of the erector device is also expensive.

  The object of the present invention is to reduce the size and simplify the structure of the shield machine erector device, to reduce the manufacturing cost, and to suspend the front and rear sliding mechanism for sliding the segment gripping body back and forth. Arranged at a position deviated from the vicinity of the hardware in the circumferential direction to ensure sufficient equipment space and work space in the center of the tunnel, simplify the structure of the segment gripping body and its surroundings, gripping pins Can be easily attached / detached to increase work efficiency.

  The shield machine erector apparatus according to claim 1 is a shield machine erector apparatus for assembling a tunnel inner surface lining segment in a ring shape around the inner surface of the tunnel in the shield machine. , A swiveling drum, swivel driving means capable of swiveling the swiveling drum, and a string-like member fixed in a string shape extending vertically on the left or right side of the swiveling drum And an elevating frame that is vertically spaced apart from the back of the string-like member and bent vertically from the lower end of the elevating frame, extends in a slanted manner toward the lowermost side of the tunnel, and has a predetermined length from the elevating frame to the rear A main body frame including an extending inclined frame; a segment gripping body connected to the inclined frame; A parallel link mechanism for connecting the frame to be movable up and down, a swinging hydraulic cylinder for vertically swinging the link member of the parallel link mechanism, and lifting and lowering the main body frame via the lift frame, and attached to the inside of the tilt frame A front / rear sliding mechanism for connecting the segment gripping body to the inclined frame so that the segment gripping body can slide back and forth for a predetermined stroke, and a front / rear direction capable of moving the segment gripping body back and forth with respect to the inclined frame via the front / rear sliding mechanism And a dynamic hydraulic cylinder.

  When assembling the segment with the erector device, the segment is connected to the segment gripping body, and then the body frame is moved to the tunnel center side via the parallel link mechanism by the swing hydraulic cylinder. The frame and its accessories are rotated in the circumferential direction to transport the segment to the assembly position, and then the body frame is moved radially outward (tunnel inner surface side) via the parallel link mechanism by the swing hydraulic cylinder. Then, the front / rear hydraulic cylinder adjusts the front / rear position of the segment gripping body via the front / rear sliding mechanism, and then the segment is assembled to the inner surface of the tunnel to separate the segment gripping body from the segment. After that, the main body frame is moved to the tunnel center side, the front and rear positions of the segment gripping body are adjusted, the swiveling drum, the main body frame and its accessories are rotated in the circumferential direction, and the segment gripping body is moved to the lowest position. Thereafter, the same process is repeated.

  According to a second aspect of the present invention, the segment gripping body includes a plate-shaped gripping plate member that approaches and opposes the segment, and is formed on the gripping plate member. And a holding pin that can be attached to and detached from the pin hole of the segment hanging piece inserted through the hanging piece introduction port on the upper surface side of the holding plate member.

  A shield machine erector apparatus according to a third aspect of the present invention is the erection apparatus for a shield machine according to the first or second aspect, wherein the segment gripping body adjusts a pair of pitching hydraulic cylinders for adjusting the pitching attitude of the segment and a rolling attitude of the segment. And a pair of rolling hydraulic cylinders for this purpose.

  According to a fourth aspect of the present invention, there is provided a shield machine according to a third aspect of the present invention, wherein the erection device is configured to be capable of turning together with the turning drum by turning the turning drum by the turning drive means.

According to invention of Claim 1, the following effect is acquired.
Since the string-like member, the lifting frame and the parallel link mechanism are arranged side by side from the center of the tunnel, similarly, the inclined frame is also arranged in a position separated from the center of the tunnel. There is no sacrifice. Therefore, a large equipment space and work space can be secured in the center of the tunnel, the work efficiency of assembling the segments can be improved, and freedom of placement of equipment and equipment for excavators around the elector equipment The degree can be increased.

  Since the main body frame is raised and lowered by the parallel link mechanism, the main body frame can be moved in the radial direction of the tunnel with a large stroke, and a large segment with a small number of circumferential divisions can be assembled. Furthermore, it is possible to increase the support rigidity for supporting the main body frame.

  Since the front and rear sliding mechanism is provided inside the inclined frame between the lifting frame and the segment gripping body, the inner space of the tilting frame between the lifting frame and the segment gripping body is effectively used to grip the front and rear sliding mechanism to the segment. It can be placed at a position that is laterally disengaged from the body. Therefore, there is no need to place a back-and-forth sliding mechanism on the upper surface side of the segment gripping body, the structure around the segment gripping body can be greatly simplified, and the segment gripping body and its accessories can be reduced in weight and assembled into segments. The work speed can be increased.

  Since the segment gripping body can be moved back and forth via the back and forth sliding mechanism by the back and forth hydraulic cylinder, the main body frame can be moved in the tunnel axis direction (front and back direction) independently of the movement in the tunnel radial direction. Therefore, the segment positioning work efficiency at the time of assembling the segments can be improved, and the main body frame can be accurately positioned in the tunnel axis direction.

  According to the second aspect of the present invention, the segment gripping body can be configured to have a simple and lightweight structure mainly composed of a plate-shaped gripping plate member that approaches and opposes the segment. The segment suspension is inserted from below into the suspension object introduction port formed in this grasping plate member, and the grasping pin is attached to and detached from the pin hole of the segment suspension object inserted into this suspension object introduction port on the upper surface side of the grasping plate member Therefore, it is possible to easily and efficiently carry out while visually observing the attachment and detachment of the grip pin.

  According to the invention of claim 3, the pitching posture of the segment can be adjusted by the pair of pitching hydraulic cylinders provided on the segment gripping body, and the pair of rolling hydraulic pressures provided on the segment gripping body. The rolling posture of the segment can be adjusted by the cylinder.

  According to invention of Claim 4, since the said erector apparatus is comprised so that turning with a turning drum is possible by turning a turning drum with the said turning drive means, a segment can be assembled | attached to the perimeter of a tunnel inner surface. .

It is sectional drawing of the principal part and erector apparatus of the shield machine of the Example of this invention. It is the II-II sectional view taken on the line of FIG. It is the elements on larger scale which expanded and illustrated a part of FIG. It is the elements on larger scale which expanded and illustrated a part of FIG. It is a principal part side view of a back-and-forth sliding mechanism. It is side views, such as a guide rod of a back-and-forth sliding mechanism. It is side views, such as a guide rod of a back-and-forth sliding mechanism. It is principal part sectional drawing which shows the part which grips a segment with a segment hanging object and a holding pin in the holding plate member of a segment holding body. It is a top view of the holding plate member of a segment holding body. FIG. 2 is an enlarged sectional view taken along line XX in FIG. 1.

  Hereinafter, modes for carrying out the present invention will be described based on examples.

First, the shield machine 1 will be briefly described. In the following description, the digging direction of the shield machine 1 is assumed to be the front, and the vertical direction and the left / right direction toward the front are described as the vertical direction and the left / right direction.
As shown in FIGS. 1 and 2, the shield machine 1 includes a front barrel 2 (only the rear end portion is illustrated), a bent portion 3, a rear barrel 4, a chamber in the front end portion of the front barrel 2, a cutter head, and a cutter head. It has a rotary drive mechanism, a plurality of shield jacks 5, a plurality of spreaders 6 installed at the rear ends of the plurality of shield jacks 5, a soil discharge facility or a mud drain facility, an erector device 10 to be described later, and the like. However, since it has a general structure in which the tunnel inner surface is covered with the segment S, the description of the configuration other than the erector apparatus 10 is omitted.

Next, the erector apparatus 10 is demonstrated based on FIGS.
The erector apparatus 10 is an apparatus that sequentially repeats assembling the tunnel inner surface lining segment S in a ring shape around the entire inner surface of the tunnel. Since the erector device 10 swivels around the axis A of the tunnel integrally with the swivel drum 11, the posture of the erector device 10 with respect to the vertical direction is not constant, but in the following description, FIG. 1 and FIG. As shown, the case where the reference posture when assembling the segment S at the lowermost part of the tunnel is held will be described as an example.

  As shown in FIGS. 1 and 2, the erector device 10 includes a swing drum 11, a swing drive mechanism 12 that rotationally drives the swing drum 11, a string member 13 that is fixed to the swing drum 11, a lifting frame 15, and an inclined frame 16. The main body frame 14 including the parallel link mechanism 17 and a pair of swing hydraulic cylinders 18, a segment gripping body 19, a longitudinal sliding mechanism 20, and a longitudinal hydraulic cylinder 21. By rotating the turning drum 11 by the turning drive mechanism 12, the erector device 10 is configured to be turned together with the turning drum 11.

  The orbiting drum 11 is disposed concentrically with the axis A of the tunnel inside the front end portion of the rear drum 4. The revolving drum 11 is supported so as to be revolvable with respect to the rear drum 4 by, for example, five sets of idle rollers 21. A thick belt-like member 11a is fixed to the outer peripheral surface of the swiveling drum 11, and this belt-like member 11a is supported by an idle roller 21 with a hook and is restricted so as not to move in the front-rear direction.

  As shown in FIGS. 1, 3, and 4, the turning drive mechanism 12 includes a chain member 22 fixed to the inner surface of the turning drum 11, a sprocket 23 engaged with the chain member 22, and a rotational drive of the sprocket 23. A hydraulic motor 24 that is fixed to the rear drum 4 side, an encoder 25 that detects the rotation angle of the revolving drum 11, and a counterweight for bringing the center of gravity of the erector device 10 closer to the axis A of the tunnel. 26 etc. As shown in FIG. 4, the encoder 25 has a sprocket 25a engaged with the chain member 22, and electrically detects the rotation angle of the sprocket 25a. In addition, although not shown in figure, the origin switch 28 (refer FIG. 3) which detects the initial position (origin position) of the turning drum 11 is also provided.

As shown in FIGS. 1 and 2, the chord member 13 is a rigid steel member having a bow shape in front view and is fixed to the right side of the swiveling drum 11 in a vertically extending chord shape. The upper and lower ends and the right edge of 13 are fixed to the revolving drum 11 by welding.
The main body frame 14 includes an elevating frame 15 and an inclined frame 16. The elevating frame 15 is a vertically long and slender steel member that is spaced apart and arranged behind the string-like member 13, and is formed in a groove-shaped cross section whose front surface is opened to ensure rigidity.

  As shown in FIGS. 1, 2, and 5, the inclined frame 16 bends in a square shape from the lower end of the lifting frame 15, extends in a slanting manner toward the lowermost side of the tunnel, and horizontally extends backward from the lifting frame 15. It is a flat box-shaped member made of steel that extends in length. The angle formed by the elevating frame 15 and the inclined frame 16 is, for example, about 140 °. However, the angle is not limited to this. The front end portion of the upper end portion of the inclined frame 16 is fixed to the lower end portion of the elevating frame 15 by welding. A reinforcing frame 16a extending over the entire length of the inclined frame 16 is fixed by welding, and a front end of the reinforcing frame 16a is fixed to the lifting frame 15 by welding.

As shown in FIG. 2, in the center of the tunnel, a device passing space P having a circular cross section in which a part of a conveyor or a pipe body, a hydraulic hose, a signal cable, or the like of a soil discharging facility or a sludge facility is disposed. Is provided. The diameter of the device passage space P is, for example, about 55 to 60% of the inner diameter of the revolving drum 11. However, although not limited to this range, it is desirable that it is as large as possible.
The hydraulic motor 24, the elevating frame 15, and the inclined frame 16 are disposed so as to substantially circumscribe the device passage space P, and other members of the erector device 10 are disposed outside the device passage space P. Therefore, even when the erector device 10 swivels together with the swivel drum 11, the device passing space P is secured.

  As shown in FIGS. 1 and 2, the parallel link mechanism 17 connects the elevating frame 15 to the string-like member 13 so as to be swingable up and down. The parallel link mechanism 17 includes an upper first link member 26 and a second link member 27 spaced apart from the first link member 26 by a predetermined distance. When the first and second link members 26 and 27 swing up and down, they are configured to swing up and down along a plane parallel to the vertical plane including the tunnel axis A.

The front ends of the first and second link members 26, 27 are pin-connected to the chord member 13 by horizontal pins 26a, 27a facing in the left-right direction, respectively. The rear ends of the first and second link members 26 and 27 are pin-connected to the elevating frame 15 so as to be rotatable by horizontal pins 26b and 27b oriented in the left-right direction.
The pair of swinging hydraulic cylinders 18 swings the second link member 27 of the parallel link mechanism 17 up and down and moves the main body frame 14 up and down via the lift frame 15. The pair of oscillating hydraulic cylinders 18 are arranged in an inclined manner so as to be arranged close to the left and right.

  The upper end of the cylinder main body of each oscillating hydraulic cylinder 18 is pin-connected to the vicinity of the upper end of the string-like member 13 by a horizontal pin in the left-right direction. The pair of swing hydraulic cylinders 18 extends downward through a rectangular opening 26c (see FIG. 10) formed in the rectangular frame portion 26f in the middle of the first link member 26, and extends downward. A tip end portion of the piston rod is pin-connected to the upper surface portion of the second link member 27 so as to be rotatable by a horizontal pin in the left-right direction.

  Thus, the first and second link members 26 and 27 are vertically swung by the pair of rocking hydraulic cylinders 18 so that the main body frame 14 is lifted and lowered in parallel via the lifting frame 15 (moves in the tunnel radial direction). Can). The rectangular opening hole 26c formed in the first link member 26 is sized so as not to interfere with the pair of swing hydraulic cylinders 18 even if the first link member 26 swings up and down. .

  As shown in FIGS. 1 and 2, the segment gripping body 19 extends from the upper surface of the right half of the gripping plate member 30 toward the inclined frame 16 and a plate-shaped gripping plate member 30 that is curved into a partial cylindrical shape. And an arm member 31 having a groove shape in cross section. An arm member 31 of the segment gripping body 19 is connected to the inclined frame 16 via a front / rear sliding mechanism 20 (see FIGS. 5 to 7) so as to be movable in a predetermined stroke in the front / rear direction.

  As shown in FIGS. 5 to 7, the front / rear sliding mechanism 20 includes first and second guide rods 32, 33 arranged in parallel in the front-rear direction with a space in the vertical direction inside the inclined frame 16. I have. Both front and rear end portions of the first and second guide rods 32 and 33 are supported by the inclined frame 16. First and second cylinders 32a and 33a are fixed to both upper and lower ends of the connecting plate 34 fixed to the arm member 31, and the first and second cylinders 32a and 33a are connected to the first and second guide rods 32 and 32, respectively. 33 is slidably fitted outside. As described above, since the segment gripping body 19 is supported by the two first and second guide rods 32 and 33, the segment gripping body 19 can move back and forth while maintaining a fixed posture with respect to the tunnel axis A. Yes.

Thus, the front / rear sliding mechanism 20 is attached to the inner side of the inclined frame 16 and connects the arm member 31 of the segment gripping body 19 to the inclined frame 16 so as to be movable in the front / rear direction.
A forward / backward hydraulic cylinder 21 for driving the segment gripping body 19 forward and backward by a predetermined stroke with respect to the inclined frame 16 via the front / rear sliding mechanism 20 is provided in a horizontal posture in the front / rear direction and attached to the inclined frame 16. ing. When the piston rod of the forward / backward hydraulic cylinder 21 is retracted, as shown in FIG. 5, the segment gripping body 19 moves to the front limit position, and when the piston rod is extended as shown by the chain line, the segment gripping body 19 is moved. Moves to the rear limit position.

  As shown in FIGS. 1, 2, 8, and 9, the segment gripping body 19 includes a cross-shaped gripping plate member 30 that is close to and opposed to the segment S, and is formed on the gripping plate member 30 and provided on the segment S. The segment hanging object 35 inserted through the hanging object introduction port 36 through which the segment hanging object 35 can be inserted from below and the pin hole 37 of the segment hanging object 35 inserted through the hanging object introduction port 36 are inserted on the upper surface side of the holding plate member 30. And a grip pin 38.

  As shown in FIGS. 1, 2, and 9, the gripping plate member 30 of the segment gripping body 19 includes a pair of pitching hydraulic cylinders 40 for adjusting the pitching posture of the segment S and the rolling posture of the segment S. A pair of rolling hydraulic cylinders 41 for adjusting the angle are provided in an inverted posture. The upper surface of the segment S is pressed by a presser at the tip of the rod of each of the hydraulic cylinders 40 and 41. The hydraulic motor 24, encoder 25, origin switch 28, and hydraulic cylinders 18, 21, 40, 41 are driven and controlled by a control unit (not shown).

Next, the operation and effect of the erector apparatus 10 will be described.
When the segment S is assembled by the erector device 10, the segment S is connected and held to the segment holding body 19, and then the body frame 14 is moved to the tunnel center side by the swing hydraulic cylinder 18 via the parallel link mechanism 17, and then swiveled. The revolving drum 11, the main body frame 14, and their accessories are rotated in the circumferential direction by the drive mechanism 12 to convey the segment S to the assembly position, and then the main body frame through the parallel link mechanism 17 by the swing hydraulic cylinder 18. 14 is moved radially outward (tunnel inner surface side), and the front / rear hydraulic cylinder 21 is used to adjust the front / rear position of the segment gripping body 19 via the front / rear sliding mechanism 20, and then the segment S is assembled to the inner surface of the tunnel. The segment gripping body 19 is separated from the segment S.

  After that, the main body frame 14 is moved to the tunnel center side, the front and rear positions of the segment gripping body 19 are adjusted, the turning drum 11, the main body frame 14 and its accessories are rotated in the circumferential direction, and the segment gripping body 19 is moved to the uppermost position. Move to the lower position and repeat until the assembly of the segments for one ring is completed. Thereafter, when the excavation for the next one ring is completed, the segment S for the next one ring is assembled.

  Since the string-like member 13, the elevating frame 15, and the parallel link mechanism 17 are arranged side by side from the center of the tunnel, similarly, the inclined frame 16 is also arranged at a position separated from the center of the tunnel. There is no sacrifice in space. Therefore, a large equipment space and work space can be secured in the central portion of the tunnel, the work efficiency of assembling the segments can be improved, and the equipment and equipment for the excavator around the elector device 10 can be arranged. The degree of freedom can be increased.

  Since the main body frame 14 is moved up and down by the parallel link mechanism 17, the main body frame 14 can be moved in the radial direction of the tunnel with a large stroke, and a large segment S with a small number of circumferential divisions can be assembled. Furthermore, it is possible to increase the support rigidity for supporting the main body frame 14.

  Since the front and rear sliding mechanism 20 is provided inside the inclined frame 16 between the lifting frame 15 and the segment gripping body 19, the inner space of the tilting frame 16 between the lifting frame 15 and the segment gripping body 19 is effectively utilized, The front-rear sliding mechanism 20 can be disposed at a position deviated laterally from the segment gripping body 19. Therefore, it is not necessary to dispose the front / rear sliding mechanism 20 on the upper surface side of the segment gripping body 19, and the structure around the segment gripping body 19 can be remarkably simplified. To increase the operating speed of segment assembly.

  Since the segment gripping body 19 is configured to be able to move back and forth via the back and forth sliding mechanism 20 by the back and forth hydraulic cylinder 21, the main body frame 14 is moved in the tunnel axial direction (front and back direction) independently of the movement in the tunnel radial direction. Therefore, it is possible to increase the work efficiency of positioning the segments when assembling the segments, and it is also possible to accurately position the main body frame 14 in the tunnel axis direction.

  The segment gripping body 19 can be configured to have a simple and lightweight structure with a plate-shaped gripping plate member 30 that is close to and opposed to the segment as a main component. The segment hanging object 35 is inserted into the hanging object introduction port 36 formed in the holding plate member 30 from the lower side, and the holding plate member 30 is inserted into the pin hole 37 of the segment hanging object 35 inserted into the hanging object introduction port 36. Since the grip pin 38 can be attached and detached on the upper surface side, the attachment and detachment of the grip pin 38 can be efficiently performed while visually observing.

The pitching posture of the segment S can be adjusted by a pair of pitching hydraulic cylinders 40 provided on the gripping plate member 30 of the segment gripping body 19, and a pair of pitching postures provided on the gripping plate member 30 of the segment gripping body 19 can be adjusted. The rolling posture of the segment S can be adjusted by the rolling hydraulic cylinder 41.
The slewing drum 11 is rotated by the slewing drive mechanism 12 so that the erector device 10 can be rotated together with the slewing drum 11. Therefore, the segment S can be assembled in a ring shape around the entire inner surface of the tunnel.

Next, an example in which the above embodiment is partially changed will be described.
1] The chord member 13 and the main body frame 15 may be arranged on the left side instead of on the right side. In this case, it is assumed that the arm member 31 of the segment gripping body 19 also extends leftward. 2] Although the lengths of the first and second link members 26 and 27 of the parallel link mechanism 17 are fixed, a length adjusting piece is bolted to the middle portion of the first and second link members 26 and 27. By doing so, you may comprise so that the length of the 1st, 2nd link members 26 and 27 can be increased / decreased.

  3] In addition, those skilled in the art can implement the present invention by partially modifying the above-described embodiments without departing from the spirit of the present invention, and the present invention includes such modifications. .

  The performance of the erection device of the shield machine that excavates the tunnel can be improved, and the productivity of tunnel excavation can be improved.

S Segment 1 Shield machine 10 Elector device 11 Swivel drum 12 Swivel drive mechanism (swivel drive means)
13 String member 14 Main body frame 15 Elevating frame 16 Inclined frame 17 Link mechanism 18 Oscillating hydraulic cylinder 19 Segment gripping body 20 Forward / backward sliding mechanism 21 Forward / backward hydraulic cylinders 26, 27 First and second link members 30 Grasping plate member 35 Segment suspension 36 Suspension introduction port 37 Pin hole 38 Grip pin 40 Pitching hydraulic cylinder 41 Rolling hydraulic cylinder

Claims (4)

In the shield excavator erector device for assembling the tunnel inner surface lining segment in a ring shape around the inner surface of the tunnel in the shield excavator,
When defined in the standard posture when assembling the segment at the bottom of the tunnel,
A revolving drum and a revolving drive means capable of revolving the revolving drum;
A string-like member fixed in a string shape extending vertically on the left side or right side of the swivel drum; and
An elevating frame that is vertically spaced apart from the back of the string-like member, bends in a heft shape from the lower end of the elevating frame, extends in an inclined manner toward the bottom of the tunnel, and has a predetermined length from the elevating frame to the rear A body frame including an inclined frame extending;
A segment gripping body connected to the inclined frame;
A parallel link mechanism for connecting the lifting frame to the string-like member so as to be movable up and down;
A swing hydraulic cylinder that swings the link member of the parallel link mechanism up and down and lifts and lowers the main body frame via the lift frame;
A front-rear sliding mechanism that is attached to the inner side of the inclined frame and connects the segment gripping body to the inclined frame so as to be able to slide back and forth for a predetermined stroke;
A forward / backward hydraulic cylinder capable of moving the segment gripping body back and forth with respect to the inclined frame via the forward / backward sliding mechanism;
An erector device for a shield machine.   The segment gripping body includes a plate-shaped gripping plate member that approaches and opposes the segment, a suspension material introduction port that is formed in the gripping plate member and allows the segment suspension material to be inserted from below, and is inserted into the suspension material introduction port. 2. The shield machine erector apparatus according to claim 1, further comprising: a grip pin inserted into a pin hole of the segment hanging object that is inserted on an upper surface side of the grip plate member.   A pair of pitching hydraulic cylinders for adjusting the pitching posture of the segment and a pair of rolling hydraulic cylinders for adjusting the rolling posture of the segment are provided on the segment gripping body. Item 3. An erector apparatus for a shield machine according to item 1 or 2.   The erector apparatus for a shield machine according to claim 3, wherein the erector apparatus is configured to be able to rotate together with the revolving drum by rotating the revolving drum by the revolving drive means.