JP3763921B2 - Lining pipe manufacturing apparatus and lining pipe construction method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pipe making apparatus for producing a lining pipe in a pipe rod, and a lining pipe construction method for producing a lining pipe in a pipe rod having an uneven inner peripheral surface.
[0002]
[Prior art]
In general, a long profile formed in the shape of a long band having joints on both side edges is continuously supplied into the tube, and while the long profile is spirally wound in the tube, There has been known a construction method in which the joining portions of the long profiles which are in contact with each other are joined to form a lining pipe in the pipe rod.
[0003]
Conventionally, in this lining pipe construction method, pipe-forming work for joining the joints that are in contact with each other while winding the long profile in a spiral shape is performed around the guide roller and the inner surface of the pipe rod. It has been proposed to use a pipe making apparatus including a moving joint mechanism (see, for example, Japanese Patent Application Laid-Open No. 5-169539).
[0004]
[Problems to be solved by the invention]
However, in the case of the above-described conventional pipe making apparatus, the joining mechanism portion advances while rotating around the inner surface of the pipe rod. The pipe-making work is stopped because it cannot be moved around by being fitted in the pipe.
[0005]
In particular, in the case of a secondary shield lining method in which a plurality of segments are connected to form a lining pipe in a pipe wall having an uneven inner peripheral surface, Since the joining mechanism portion easily fits into the uneven portion, it becomes impossible to smoothly proceed with the pipe making operation of the lining pipe.
[0006]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lining pipe pipe making apparatus and a lining pipe construction method capable of efficiently and comfortably making a lining pipe. .
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a lining pipe manufacturing apparatus according to the present invention is a tube in which a long strip having a joint on both side edges is spirally wound and the side edges of the strip are joined. A pipe making apparatus that forms a lining pipe in a tub and forms a lining pipe in the rear along with the formation, and proceeds in a pipe tub composed of a plurality of segments having a recess, and sandwiches a belt-like body a joining mechanism part which Yu and pipe culvert an outer surface roller and the inner surface roller for joining the side edges of the strip moves around in a plurality of guide rollers chromatic and outer surface roller and disposed annularly within Kanmizo inner surface It includes a guide portion that rotates in contact with the tube culvert interior surface while supporting the joint mechanism unit so as not to contact, the axial length of the guide rollers is more fully width of one segment constituting the Kanmizo Characterized by being lengthened .
[0008]
(Function)
The outer surface roller and the inner surface roller of the joining mechanism part sandwich the long belt-like body and join the side edges of the belt-like body to form a lining pipe. The formed lining pipe is left in the pipe rod, and the joining mechanism moves around in the pipe rod to join and roll the belt-like body to add the lining pipe. At that time, the guide portion rotates in contact with the inner surface of the pipe rod composed of a plurality of segments having concave portions as the joining mechanism portion moves around. The guide portion having a guide roller whose axial length is sufficiently longer than the width dimension of one segment constituting the tube supports the joining mechanism, and the outer surface roller of the joining mechanism does not contact the inner surface of the tube. Therefore, the joining mechanism portion can smoothly move around in the pipe rod, and the pipe making apparatus can smoothly move in the pipe rod.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
First, as shown in FIG. 1, the outline of the whole structure of the shield secondary lining method by a pipe manufacturing apparatus is demonstrated. The long profile 6 is fed into the manhole 51 from the supply device 7 installed on the ground and supplied into the tube 5. Further, a feeding device 8 for stabilizing the supply state of the long profile 6 is provided in the tube 5, and the long profile 6 is supplied deep inside the tube 5 to provide a long-distance lining tube 60. It is made so that it can be constructed. The delivery device 8 can be operated from the ground by a hydraulic drive unit 81 installed on the ground.
[0011]
As shown in FIG. 2, the pipe rod 5 is formed in a cylindrical shape by connecting a plurality of box-shaped segments 50. Accordingly, the inner peripheral surface of the pipe rod 5 is in a state in which irregularities due to the segments 50 are formed.
[0012]
As shown in FIG. 3A, the long profile 6 is formed in a long belt shape, and a plurality of ribs 61 project from the outer surface along the longitudinal direction. In addition, a joining rib 62 having a projecting height lower than that of the rib 61 is projected from one side edge of the long profile 6 along the longitudinal direction. On the other hand, a joining groove 63 to which the joining rib 62 is joined is formed on the inner surface of the rib 61 at the other side edge of the long profile 6 along the longitudinal direction. Then, as shown in FIG. 3B, the lining pipe 60 can be formed by joining the joining rib 62 to the joining groove 63 while winding the long profile 6 in a spiral shape.
[0013]
As shown in FIGS. 4 and 5, the pipe making apparatus 1 forms a lining pipe 60 made of a long profile 6 in a pipe rod 5, and includes a forming frame 22, a guide roller 2, and a joining mechanism section 3. And a guide part 4.
[0014]
The guide roller 2 is rotatably mounted on each shaft portion 10 of the molding frame 22. The roller body is made of a hard synthetic resin or metal and abuts against the inner surface of the belt-like member 6. The outer periphery of the molding frame 22 is annularly arranged at a predetermined interval and at a predetermined angle. The forming frame 22 is formed in a circular shape corresponding to the cross-sectional shape of the sewer pipe, has a link mechanism and can be bent in the outer diameter direction, and has lateral rigidity. The molding frame 22 forms a link chain in which a plurality of link bodies are connected. In this embodiment, the molding frame 22 is composed of 24 link bodies, but the number is not limited thereto.
As shown in FIGS. 6 and 7, each link body includes a shaft portion 10 having a rod shape with a required length, and a bearing 11 between adjacent shaft portions at both front and rear ends of the shaft portion 10. The plate-shaped link arm 12 is rotatably connected.
[0015]
The link arms 12 can be folded outward with respect to each other at 180 °, but the middle folding is prevented. For this reason, an anti-breaking mechanism is provided, and an example is shown in FIGS. 8 (a) and 8 (b). That is, a main stopper 14 projects from the end of one link arm 12 (I), and a stopper receiver 15 projects from the other link arm 12 (II) toward the previous link arm 12 (I). Since the main stopper 14 and the stopper receiver 15 are in contact with each other, they are prevented from being bent. Reference numeral 16 denotes a sub-stopper that describes the angle (α) of outward folding.
[0016]
In the guide portion 4, a plurality of guide rollers 42 are annularly arranged on the guide frame 41 so as to be in contact with the inner surface of the pipe tube, and are installed at a position in front of the molding frame 22 in the lining direction and coupled to the molding frame 22. ing. The guide roller 42 is supported by a support shaft, and is rotatably connected to each end portion of each support shaft by a flat link arm. Accordingly, each link arm forms an endless annular guide frame 41 that can be bent. The axial length of each guide roller 42 is sufficiently longer than the width dimension of one segment 50 constituting the pipe rod. A belt may be attached to the outer surface of the guide roller 42.
[0017]
The guide frame 41 and the molding frame 22 are connected by a plurality of connecting portions 23 at regular intervals. The support shaft of the inner roller 33 a and the support shaft of the guide roller 42 are connected by a chain 43. Therefore, the driving force of the inner surface roller 33 a is transmitted to the guide roller 42, and the guide roller 42 rotates with the rotation of the joining mechanism unit 3. In connection with the chain 43, gears are interposed so that the amount of rotational movement seen from the tube center of the inner surface roller 33 and the guide roller 42 is the same, and the amount of movement per unit time is the same.
[0018]
The joining mechanism section 3 is fixed to the front end of the molding frame 22 and is configured to rotate a pair of outer surface rollers 33b and inner surface rollers 33a from a hydraulic motor via a gear mechanism. As shown in FIG. It consists of an inner roller 33a along the inner surface of the long profile 6 and an outer roller 33b having a flange 331 fitted between the ribs 62 of the long profile 6. And this joining mechanism part 3 joins the joining rib 62 and the joining groove | channel 63 of the long profile 6 by rotating, pinching the long profile 6 between the inner surface roller 33a and the outer surface roller 33b. However, the lining pipe 5 is formed by moving around the inner surface of the pipe rod 5.
[0019]
Moreover, when the joining mechanism part 3 rotates, the pipe making apparatus 1 receives a force forward in the pipe hook direction by the engagement guide action between the flange part 331 of the outer surface roller 33 b and the rib 62 of the long profile 6. Since the starting end portion of the lining tube is fixed to the inner surface of the tube rod, the lining tube proceeds in the tube rod 5. At this time, the guide roller 2 is in contact with the inner surface of the lining pipe 60 to be formed, and guides the state of feeding of the lining pipe 60.
[0020]
Furthermore, when the pipe making apparatus 1 travels in the pipe rod 5, the guide portion 4 rotates while contacting the inner peripheral surface of the pipe rod 5 while supporting its own weight. 3 can be prevented from fitting into the unevenness of the segment 50 constituting the pipe rod 5 to stop the pipe making apparatus 1, and the shield secondary lining work can be performed efficiently and comfortably.
[0021]
Next, a construction method in the case where the diameter of the lining pipe 60 is expanded and the lining pipe 60 is attached to the inner peripheral surface of the pipe rod 5 will be described. First, the fixing rod 46 is extended by the hydraulic cylinder 45 and the guide portion 4 is fixed to the inner surface of the tube 5. And the gear of the chain 43 which connects the inner surface roller 33a and the guide roller 42 is cancelled | released. The starting end side of the lining pipe 60 is fixed to the pipe rod 5. In this state, the outer surface roller 33b and the inner surface roller 33a of the joining mechanism section 3 are driven to rotate, the long profile 6 is fed, and the lining pipe 60 is rotated. At that time, since the starting end side of the lining pipe 60 is fixed to the pipe rod 5, the joining rib 62 and the joining groove 63 of the long profile 6 slip and the lining pipe 60 expands from the starting end side. Diameter is applied to the inner peripheral surface of the pipe rod 5.
[0022]
In addition, in this Embodiment, although the pipe making apparatus 1 which forms the cylindrical lining pipe | tube 60 in the cylindrical pipe tub 5 is described, it is not limited to the thing of such a shape in particular, It may be a pipe making apparatus 1 configured to form a rectangular lining pipe 60 in the rectangular pipe rod 5.
[0023]
Further, in the present embodiment, a shield secondary lining method is described in which a plurality of segments 50 are connected to form a lining pipe 60 on a pipe rod 5 having an uneven inner peripheral surface. In addition to the shield secondary lining method, 1 can be used effectively if the inner peripheral surface is uneven due to aging or cracking due to earthquakes, etc. Can do.
[0024]
Furthermore, in this embodiment, the case where the long profile 6 as shown in FIG. 3 is used is described, but a long profile 9 as shown in FIG. That is, the long profile 9 includes a belt-like body member 91 and a belt-like fitting member 92 that joins the side edges adjacent to each other when the body member 91 is spirally wound. Have. The main body member 91 has a plurality of T-shaped cross sections disposed at equal intervals on the back surface of the board main body 91a and fitting portions 91b provided on the side edges of the band plate-shaped board main body 91a. Reinforcing ribs 91c.
[0025]
Each fitting portion 91b is raised from each side edge portion of the substrate body 91a at a right angle and bent outward at a right angle, and its tip is bent at a right angle toward the substrate body 91a. It is in the shape. And the engaging part 91d which protrudes in a semispherical cross section is provided in the front-end | tip part of each fitting part 91b at the inner side of cross-sectional U shape.
[0026]
The band-shaped fitting member 92 has a U-shaped cross section. As shown in FIG. 10B, the main body member 91 is spirally wound so that the adjacent fitting portions 91b protrude from each other. In the combined state, the respective fitting portions 91b in the butted state can be fitted together.
[0027]
In such a long profile 9, after the main body member 91 is formed into a tubular shape along the inner peripheral surface of the tube 5 by the pipe making device 1 disposed in the tube 5, the fitting member 92 is adjacent to the long profile 9. It fits so that the fitting parts 91b to enclose may be included integrally. Alternatively, before the main body member 91 is introduced into the pipe making apparatus 1, the fitting member 92 is fitted in advance to the one fitting portion 91 b, and the main body member 91 is formed into a tubular shape by the pipe making apparatus 1. Then, the fitting member 92 may be fitted to the other fitting portion 91b of the main body member 91 formed into a tubular shape.
[0028]
【The invention's effect】
As described above, according to the pipe making apparatus of the present invention, the guide portion having the guide roller whose axial length is sufficiently longer than the width dimension of one segment constituting the pipe rod , the outer roller is arranged on the inner surface of the pipe rod. because supports the joining mechanism part so as not to contact, even when the is uneven or stepped into the tube culvert, this unevenness or level difference, the pipe producing work stop fits the outer surface roller over Therefore, the lining pipe can be constructed efficiently and comfortably.
[0029]
In addition, according to the lining pipe construction method of the present invention, it is possible to prevent the pipe making operation from being stopped due to the outer surface roller being fitted into the concave portion of the segment or the gap between the segments, thereby efficiently and comfortably working. It can be performed.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an outline of the overall configuration of a shield secondary lining method using a pipe making apparatus.
FIG. 2 is a partial perspective view showing the inside of a tube.
FIGS. 3A and 3B are a partial perspective view showing a long profile used in the shield secondary lining method and a cross-sectional view showing a joining state of the long profile. FIGS.
FIG. 4 is a cross-sectional view of an essential part showing a shield secondary lining method using a pipe making apparatus.
FIG. 5 is a perspective view showing a pipe making apparatus.
FIG. 6 is a partial cross-sectional plan view of a molding frame.
7 is a view in the direction of the arrow V in FIG.
8A and 8B are structural views of a link body of a forming frame.
FIG. 9 is a cross-sectional view showing a joining state of a long profile by a joining mechanism.
FIGS. 10A and 10B show another embodiment of a long profile, and are a cross-sectional view and a partially exploded perspective view showing a joining state of the long profile. FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pipe making apparatus 2 Guide roller 22 Forming frame 3 Joining mechanism part 33a Inner surface roller 33b Outer surface roller 4 Guide part 41 Guide frame 42 Guide roller 5 Pipe rod 50 Segment 6 Long profile 60 Lining pipe 62 Joining rib (joint part)
63 Joining groove (joining part)

Claims (2)

A long strip with joints on both side edges is spirally wound, and the side edges of the strip are joined to form a lining tube in the tube cage. A pipe making apparatus that progresses in a tube made up of a plurality of segments having recesses while forming a pipe, and has an outer surface roller and an inner surface roller that join the side edges of the band shape with the band shape interposed therebetween. contact with the to sewer and joining mechanism part which moves circularly, a plurality of guide rollers chromatic and outer surface roller tube culvert interior surface while supporting the joint mechanism unit so as not to contact the Kanmizo inner surface of which is disposed in an annular And a rotating guide part ,
A pipe making apparatus, wherein an axial length of the guide roller is sufficiently longer than a width dimension of one segment constituting the pipe rod . A lining pipe construction method, wherein a lining pipe is formed by a lining pipe making apparatus according to claim 1, wherein a lining pipe making apparatus according to claim 1 is formed in a pipe tub whose inner peripheral surface is made uneven by connecting a plurality of segments in a cylindrical shape.

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