JP6644826B2 - Construction apparatus for lining in sewer with feed roller and method of constructing lining pipe in sewer by the construction apparatus - Google Patents

Description

The present invention relates to a lining construction apparatus and construction for forming a tubular body by spirally winding a long plate-like band-shaped member in a sewer and forming the lining pipe by self-propulsion (self-propelled) movement. a method, and more particularly, using the belt-shaped member in which the joint is formed on both side edges, distribution a joining mechanism part consisting of the inner surface roller and the outer surface roller forming frame of flexible or rigid adopt a predetermined closure shape And a lining pipe lining construction device for spirally winding the band-like member to form a lining pipe by a sandwiching function of the inner roller and the outer roller, and a lining pipe in the culvert by the construction device Construction method .
A material having elasticity or a material having plastic deformability is used for the belt-shaped member.
In the construction equipment for lining inside the main sewer ,
(A) When a rigid molding frame is used, the molding frame has an annular shape, and an elastic band-shaped member is generally used, but this does not hinder the use of a plastic-deformed band-shaped member.
(B) Also, when using a flexible, ie bendable, molded frame,
(I) an embodiment in which an elastic band-shaped member is used, and the molded frame is held independently by its elastic force;
(Ii) a mode in which a band-shaped member having plastic deformability is used, and the forming frame is moved via a guide along a rigidly-regulated regulating frame having a predetermined shape to obtain a lining tube having the cross-sectional shape;
including.

The present applicant previously disclosed in Japanese Patent Application Laid-Open No. 9-32968 (hereinafter referred to as “prior art”) a feed mechanism section mainly including a feed roller in a joining mechanism section of a construction apparatus for lining in a sewer having the above configuration. Was proposed to improve the efficiency of lining pipe installation.
That is, according to the prior art,
`` In the sewer, a long band-shaped member having joints formed on both side edges and continuously supplied is spirally wound, and a tubular body formed by engaging the mutually-joining joints is left. A lining construction apparatus for additionally forming a tubular body with a band-shaped member newly supplied in front of the already formed tubular body,
A rigid mounting frame disposed inside the tubular body;
A plurality of guide rollers mounted on the same circumference at a predetermined pitch via the mounting frame and abutting on the inner surface of the tubular body;
A joining mechanism portion that is attached via the attachment frame, is disposed at a closed portion between the already formed tubular body and the newly supplied band member, and includes an outer roller and an inner roller that sandwich the band member. ;
Having,
In the joining mechanism, the outer surface of the feed roller protrudes outward, and a feed roller that rotates in the same direction as the rotation direction of the lining application device is driven to rotate.
A lining construction device in a sewer . "
Is the gist.
With this configuration, the following operation is exhibited.
(A) At the closed position of the belt-shaped member, the joints that are in contact with each other by the clamping action of the outer roller and the inner roller of the joining mechanism are engaged with each other. The outer roller engages with the concave groove formed on the outer surface of the band-shaped member, and advances in the pipe axis direction at a predetermined pitch together with the newly supplied band-shaped member, so that the joining mechanism is always located at the closed position. As a result, the lining construction apparatus revolves as a whole, and the belt-shaped members are continuously closed to form a pipe.
(B) The feed roller comes into contact with the wall surface of the sewer and receives a reaction from the wall surface by the rotation thereof to apply a rotational force to the lining construction device , thereby contributing to the smooth rotation of the lining construction device .
(C) If the lining construction device is smaller than the inner diameter of the sewer, the feed roller will contact only in the lower part of the sewer, but will oppose the own weight of the lining pipe and the lining construction device. Then, the lining construction device is smoothly rotated. The specific structure of the feed mechanism is shown in FIGS. 4 and 5 of the publication (reference numerals are those in the prior art publication), and the feed mechanism 22 is located outside the box It comprises a drive sprocket 45 fixedly mounted on the second shaft 38, a feed roller 46 with a sprocket rotatably mounted on the third shaft 39, and a chain 47.
That is, according to the feed mechanism, the feed roller is driven via a chain (or belt) transmission, and its vulnerability is pointed out.
In addition, in recent years, in response to a request for a larger section of the sewer pipe, the size of the entire lining construction device and, consequently, the weight of the lining construction device have been studied. Therefore, drastic improvement of the feed mechanism is expected.
Furthermore, the heavy weight of the entire construction apparatus for the lining of large, takes overload on the drive shaft of the outer surface roller (second shaft portion 38), it will be bending or damage of the shaft portion 38, thus the outer surface roller It is pointed out that there is a possibility that the rotation failure of the roller and the one-side contact of the outer roller at the contact portion with the belt-shaped member may adversely affect the pipe-making operation of the lining construction apparatus itself.

JP-A-9-32968

The present invention is a further development of the prior art, and in a self-propelled spiral-wound culvert lining construction apparatus using this kind of band-shaped member, the construction apparatus responds to the increase in diameter and cross section of the culvert. An object of the present invention is to improve a feed mechanism that can cope with an increase in the size and weight of a device.
It is another object of the present invention to obtain a method for constructing a lining pipe in a sewer using the construction apparatus.

Specifically, a construction apparatus for lining in a sewer provided with a feed roller according to the present invention and a method for constructing a lining pipe in a sewer by the construction apparatus have the following configuration.
(First invention)
A first aspect of the present invention relates to a construction apparatus for lining in a sewer, and as described in claim 1,
In the sewer, joints are formed on both side edges and are continuously supplied, and a long belt-like member is spirally wound,
A tubular lining pipe formed by joining the mutually adjoining joints is left, and an additional lining pipe is additionally formed with a band-shaped member newly supplied in front of the already formed lining pipe,
At the front end of the already formed lining tube, there is a joining mechanism portion comprising an inner roller and an outer roller mounted on a drive shaft held by a rigid box and rotated in opposite directions by gear engagement. In a lining construction apparatus for arranging a closed forming frame and forming the additional lining tube by a sandwiching function of the inner roller and the outer roller,
In the box, a feed roller whose outer surface protrudes outward is disposed on a feed roller drive shaft disposed outside and parallel to a drive shaft of the external roller,
The feed roller drive shaft is driven by meshing of a gear with a drive shaft of the external roller,
It is characterized by the following.
The first invention is an inventive concept that is more specifically shown by the following first and second embodiments, and is extracted by the embodiments.

In the above configuration, the following aspects are appropriately adopted embodiments.
1) For the feed roller,
1a) A mode in which the feed roller is disposed behind the drive shaft of the outer roller with respect to the rotation direction of the lining application device .
1b) A mode in which the feed roller is disposed coaxially with the drive shaft of the outer roller or in front of the drive shaft of the outer roller with respect to the rotation direction of the lining application device .
2) per molding frame
2a) A mode in which the molding frame is flexible and bendable and moves via a guide along a regulation frame having rigidity and a predetermined shape. In this embodiment, a belt-shaped member having plastic deformability is used.
2b) A mode in which the forming frame is flexible and moves without using a regulating frame. In this embodiment, a band-shaped member having plastic deformability or an elastic band-shaped member is used.
2c) An embodiment in which the molding frame is an annular rigid body. In this embodiment, a band-shaped member having plastic deformability or an elastic band-shaped member is used.
In the present invention, a gear mechanism that transmits a driving force to the feed roller by meshing the gears via a gear mounted on the drive shaft of the outer roller constitutes a “feed mechanism”. In the feed mechanism, the peripheral speed (pitch speed) of the gear mounted on the drive shaft of the outer roller and transmitting the driving force to the feed roller is set lower than the forming speed of the lining tube by the joining mechanism , and An aspect that adopts a configuration in which the peripheral speed is made to match the forming speed of the lining pipe of the joining mechanism is a characteristic aspect of the present invention.

(Action)
The lining construction device is installed in an existing sewer, and a belt-shaped member is supplied from outside, and the belt-shaped member is introduced into the lining construction device via a joining mechanism of a molding frame of the device .
By driving the construction equipment for the lining, lining pipe having a predetermined shape Yuku formed with the progress of the lining apparatus by clamping the bonding working to strip the inner roller and the outer surface roller in the joint mechanism unit.
In this forming process, the feed roller rotates in a direction opposite to the rotation of the outer roller, contacts the inner wall surface of the sewer, and applies a feed force to the construction apparatus.
When the forming of the lining pipe is completed in the sewer, a solid backfill material is filled between the sewer and the lining pipe, and the lining of the sewer is performed.
Thus, in a mode in which the peripheral speed of the feed roller is made to match the forming speed of the lining pipe of the joining mechanism, the construction of the bottom surface of the rectangular pipe is performed smoothly. When the peripheral speed of the feed roller is set to be higher than the forming speed of the lining tube of the joining mechanism, the circular rigidity of the circular cross-section culvert is increased by the so-called circuitous movement of the feed roller (elimination of the inner ring difference). Construction by the molding frame is performed smoothly.

(Second invention)
The second invention relates to a construction method of the lining tube in the first invention of the pipe culverts in the tube groove made using a lining for construction equipment, as described in claim 6,
In the sewer, joints are formed on both side edges and supplied continuously,
A long belt-like member is spirally wound,
A tubular lining pipe formed by joining the mutually adjoining joints is left, and an additional lining pipe is additionally formed with a band-shaped member newly supplied in front of the already formed lining pipe,
At the front end of the already formed lining tube, there is a joining mechanism portion comprising an inner roller and an outer roller mounted on a drive shaft held by a rigid box and rotated in opposite directions by gear engagement. In a lining construction apparatus for arranging a closed forming frame and forming the additional lining tube by a sandwiching function of the inner roller and the outer roller,
In the box, a feed roller whose outer surface protrudes outward is disposed on a feed roller drive shaft disposed outside and parallel to a drive shaft of the outer roller, and the feed roller drive shaft is provided on the outer surface. A method for constructing a lining pipe made by using a construction apparatus for lining in a sewer characterized by being driven by meshing of a gear with a drive shaft of a roller,
The meshing speed of the gear mounted on the drive shaft of the outer roller and transmitting the driving force to the feed roller is lower than the forming speed of the lining tube by the joining mechanism, and the peripheral speed of the feed roller is Coincides with the forming speed of the lining tube of the joining mechanism ,
It is characterized by the following.
The second invention is an inventive concept that is more specifically shown by the following first embodiment and is extracted by the first embodiment.

In the above configuration, the following aspects are appropriately adopted embodiments.
1) For the feed roller,
1a) A mode in which the feed roller is disposed behind the drive shaft of the outer roller with respect to the rotation direction of the lining application device .
1b) A mode in which the feed roller is disposed coaxially with the drive shaft of the outer roller or behind the drive shaft of the outer roller with respect to the rotation direction of the lining application device .
2) per molding frame
2a) A mode in which the molding frame is flexible and bendable and moves via a guide along a regulation frame having rigidity and a predetermined shape. In this embodiment, a belt-shaped member having plastic deformability is used.
2b) A mode in which the forming frame is flexible and moves without using a regulating frame. In this embodiment, a band-shaped member having plastic deformability or an elastic band-shaped member is used.
2c) An embodiment in which the molding frame is an annular rigid body. In this embodiment, a band-shaped member having plastic deformability or an elastic band-shaped member is used.

(Action)
In a rectangular cross-section culvert or a horseshoe cross-section culvert, the lining construction device is driven by the lining construction device, and the lining pipe of a predetermined shape is formed by the sandwiching action of the inner roller and the outer roller on the belt-shaped member in the joining mechanism. Is formed as the process progresses.
In this forming process, the feed roller comes into contact with the inner wall surface of the bottom portion of the sewer, and applies a feed force to the lining construction apparatus in synchronization with the forming speed of the lining pipe.

According to the construction apparatus for lining in a sewer of the present invention, since the feed roller has its feed roller drive shaft arranged independently and in parallel with the drive shaft of the outer roller, the load applied to the feed roller is reduced on the outer surface. There is no effect on the rollers, and the pipe-forming operation by the inner and outer rollers is performed smoothly.
Since the rotational force of the feed roller is transmitted by the meshing of the gears between the feed roller drive shaft and the outer roller drive shaft, a large drive force is transmitted, and the lining pipe can be constructed even if the construction equipment is made larger and heavier. Is performed well.
Further, according to the method of constructing a lining pipe in a sewer according to the present invention, the feed roller applies a feeding force to the present construction apparatus in synchronization with the forming speed of the lining pipe. Of the lining pipe is smoothly performed, and the lining pipe is satisfactorily constructed.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the whole of one Embodiment (1st Embodiment) of the construction apparatus for the lining inside a spiral wound type sewer provided with the feed roller of this invention. The rear view of this lining construction apparatus . FIG. 3 is a side cross-sectional view (a cross-sectional view taken along line 3-3 in FIG. 1) of the lining construction device . The top view of this lining construction apparatus . Correspondence figure between a regulation frame and a molding frame in the lining construction apparatus . FIG. 6 is a sectional view taken along line 6-6 of FIG. 5. FIG. 9 is a detailed configuration diagram of a molding frame (a view in the direction of arrow 7 in FIG. 8). FIG. 8 is a side view of the molding frame (a view as seen in the direction of arrow 8 in FIG. 7). FIG. 3 is an installation diagram of a molding frame of a joining mechanism. The front view of a joining mechanism part. FIG. 11 is a cross-sectional view (a cross-sectional view taken along line 11-11 in FIG. 10) illustrating the configuration of the joining mechanism (including the configuration of the partial feed mechanism). FIG. 12 is a cross-sectional view (a cross-sectional view taken along line 12-12 in FIG. 10) illustrating a configuration of the feed mechanism unit. FIG. 11 is a top view showing the configuration of the feed mechanism (a view in the direction of arrow 13 in FIG. 10). FIG. 7 is a side view of another embodiment of the molding frame and the regulating frame. Partial view of a guide. FIG. 13 is a diagram illustrating another mode of the feed mechanism (a cross-sectional view corresponding to FIG. 12). Sectional drawing of the sewer showing the point of the backfill filling work of the lining pipe in the sewer P. FIG. 1A is a cross-sectional view showing one embodiment of a belt-shaped member used in the present invention, and FIG. The partial section side view showing the whole lining construction device of other embodiments (2nd embodiment) of the present invention. The front view of the molding frame of a 2nd embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a spirally wound pipe lining construction apparatus provided with a feed roller of the present invention and a lining pipe construction method using the construction apparatus will be described with reference to the drawings.
(1st Embodiment)
FIGS. 1 to 18 show an embodiment (first embodiment) of the present invention, in which a helical winding free-section pipe-type pipe lining construction apparatus provided with the feed roller and the lining construction apparatus are used. The lining construction method in a rectangular cross-section culvert is shown.
That is, FIGS. 1 to 4 show a schematic configuration of the entire spiral winding free-section tubular lining construction device (hereinafter abbreviated as “construction device”) S, and FIGS. A more detailed partial configuration is shown, and FIG. 17 shows a construction procedure. FIG. 18 shows an embodiment of a belt-like member used in the present invention.
In these figures, P indicates a sewer having a rectangular cross section, and R indicates a lining pipe manufactured by the construction apparatus S. In addition, the forward direction and the rear portion are defined as the traveling direction (arrow B) of the lining pipe R formed by the construction apparatus S.

Band member 100 (see FIG. 18)
Prior to the description of the configuration of the construction apparatus S, a belt-shaped member applied to the construction apparatus S will be described.
FIG. 18 shows an example of a belt-shaped member applied to the lining construction apparatus S of the present embodiment.
The main body of the belt-shaped member 100 has a flat plate shape with a constant thickness, and an appropriate number (five in the example, usually three) of ridges 102 are continuously provided in the longitudinal direction of the outer surface thereof. A flange 102 a is formed at the tip of the ridge 102. A groove 104 or a groove space is formed between the ridges 102. The inner surface 106 is formed substantially smooth.
Joints 100A and 100B are formed on both sides of the belt-shaped member 100 so as to overlap and engage with each other. That is, the base of the protruding ridge 102A at the front end of the front edge side joining portion 100A is expanded, the concave groove 110 is provided vertically from the inner surface side, and the protruding portion 112 is provided continuously from the protruding ridge 102A. The trailing edge side joining portion 100B has a projecting portion 114 extending from the projecting ridge 102B at the rear end, and a ridge 116 which engages with the concave groove 110 of the leading edge side joining portion 100A is formed near the end of the projecting portion 114B. Is established.
In this belt-shaped member 100, a plastically deformable material 120 as a plastically deformable functional material made of metal (usually made of steel) is mounted between the intermediate ridges 102. The plastically deformable material 120 is formed by continuously bending a long metal flat plate in the longitudinal direction. The position of the plastically deformable material 120 is not limited to the position shown in the drawing, and may be another position or a plurality of positions.

At the time of joining, the leading edge and the trailing edge of the adjacent belt-shaped members 100 overlap, and the trailing edge joining portion 100B sandwiches the outer roller and the inner roller of the joining roller portion described later on the leading edge joining portion 100A. In response, the ridge 116 is fitted into the groove 110, and the end of the overhang portion 112 is fitted into the flange 102a of the ridge 102B, and joined. In this case, the main engagement is performed by the concave groove 110 and the protruding ridge 116, and the overhanging portion 112 and the protruding ridge 102B make a subordinate engagement. Therefore, the subordinate engagement may be omitted in some cases. .
Further, in the present embodiment, a sealing material 118 is interposed at the abutting portions of the overhang portions 112 and 114 to enhance the joining property. If the fitting engagement at the joints 100A and 100B is sufficient, the sealing material 118 can be omitted. The belt-shaped member is made of a synthetic resin material, and in particular, a vinyl chloride (PVC) resin that can be continuously formed by extrusion from the viewpoint of moldability is preferable.

Construction equipment S for lining in sewers (see FIGS. 1 to 16)
As shown in FIGS. 1 to 4, the construction apparatus S has a rigid regulating frame 10 having a rectangular shape, and a guide roller 11 arranged on the outer periphery. And a bendable molding frame 13 which is movably disposed on the main body. The bending of the molding frame 13 is 180 ° and the outer bending is free, and the inner bending is limited by the middle bending preventing mechanism. An inner roller 15 and an outer roller 16 are attached to the molding frame 13 at a predetermined interval, and a driving unit 17 for driving the rollers 15 and 16 is provided via a feed mechanism U to the driving unit 17. A joining mechanism 19 including an interlocking feed roller 18 is fixedly mounted, and the molding frame 13 receives a driving force from the driving unit 17 at the joining mechanism 19 and sandwiches the belt-shaped member 100 to propel itself. .
In the construction apparatus S, the feed roller 18 is interlocked with the drive unit 17 via the feed mechanism unit U, and rotates in a direction opposite to the outer roller 16. Further, a positioning mechanism T is added to the construction apparatus S.

Hereinafter, referring to FIG. 5 to FIG. 15 illustrating the arrangement of a detail of the construction apparatus S.
Molding frame 13 (see FIGS. 5 to 9)
The molding frame 13 forms an annular body with a required width, and has a link mechanism composed of a series of link bodies 21 (frame portions 21a and shaft portions 21b), which can be flexibly bent in the outer diameter direction and has a horizontal structure. Has rigidity.
The guide roller 11 is rotatably disposed on each shaft portion 21b of the link mechanism of the forming frame 13. The driving section 17 of the joining mechanism section 19 is mounted on one mounting section 21A of the link body 21 of the molding frame 13.
(Center fold prevention mechanism)
The outer sides of the link bodies 21 can be bent on the basis of 180 °, but are not bent at the center. For this reason, a center fold prevention mechanism is provided on the side surface of the frame portion 21 a of the link body 21. FIG. 8 shows an example. In the figure, reference numeral 22 denotes a stopper.

Guide roller 11 (see FIGS. 5 to 9)
The guide roller 11 is rotatably mounted on each shaft portion 21 b of the link body 21 of the molding frame 13. The roller body is made of a hard synthetic resin body or a metal body, and contacts the inner surface of the belt-shaped member 100. The standard guide roller 11 (11a) has a length that is the full width of the inside of the link body 21, but the required number (usually 1 or 2) of the guide rollers 11 (11b) at the front portion of the joining mechanism 19 is usually It is shifted rearward by the width of the band-shaped member 100 or is particularly shortened (see FIG. 9).

Joining mechanism part 19 (see FIGS. 10 to 13)
The joining mechanism section 19 includes a joining roller section (including the inner roller 15 and the outer roller 16), a driving section 17, and a feed roller 18, and is mounted on the mounting section 21A of the forming frame 13. The joining mechanism section 19 is mainly composed of a joining roller section in which an inner roller 15 and an outer roller 16 are paired, and a box body 25 containing a gear mechanism 24 for synchronously rotating these rollers 15 and 16. And a hydraulic motor 26 attached to the box 25 as a rotation drive source for the rollers 15 and 16. The joining mechanism 19 is a joining portion of the spirally wound strip 100, that is, the strip 100 is initially It is arranged corresponding to the position to be closed. The gear mechanism 24, the box 25, and the hydraulic roller 26 constitute a drive unit 17, and the feed roller 18 is interlocked with the drive unit 17 via a feed mechanism U. The inner roller 15 is mounted on the shaft 21b of the link body 21 of the forming frame 13 in the same manner as the guide roller 11.

(Box 25)
As shown in FIG. 10, the box 25 is divided into an upper portion and a lower portion. The upper portion can be opened around the pin axis p, and the upper portion is closed to the lower portion by the closing device 27. The box body 25 holds the shafts of the gear mechanism 24 and the feed roller 18 by the front and rear surfaces over the upper and lower portions. In the lower part of the box 25, the front part is a mounting part of the hydraulic motor 26, and the rear part is mounted on the shaft part 21b of the link body 21 of the mounting part 21A of the forming frame 13.

(Gear mechanism 24)
As shown in FIG. 11, the gear mechanism 24 has three shaft portions 29, 30, 31 that are sequentially and rotatably bridged from below over the front and rear walls of the box body 25. , 31 are fixedly provided with gears 32, 33, 34. The inner roller 15 of the joining roller portion is connected to the second shaft portion 30, and the outer roller 16 is connected to the third shaft portion 31. As shown, the second shaft 30 rotates in the reverse direction and the third shaft 31 rotates in the forward direction with respect to the rotation of the first shaft 29, so that the inner roller 15 and the outer roller 16 are mutually rotated. Reverse rotation.

(Feed roller 18, feed mechanism U)
As shown in FIGS. 10, 11, 12, and 13, the feed mechanism U mainly includes the feed roller 18 and is driven by a feed roller that is supported by an upper portion of the box 25 (an outer portion of the pipe diameter). A shaft 36, an (inner) gear 37 fixed to the third shaft portion 31, and a (outer) gear 38 fixed to the feed roller drive shaft 36 and meshing with the gear 37. The feed roller 18 is fixed to a feed roller drive shaft 36 extending outside the box 25.
More specifically, the third shaft portion 31 is the original shaft of the feed roller mechanism U, and the feed roller drive shaft 36 is disposed outside the original shaft 31 and parallel to the original shaft 31 as a slave shaft. At the same time, it is arranged behind the original shaft 31 with respect to the traveling direction of the joining mechanism. Further, the inner gear 37 has a small diameter in a pitch circle, the outer gear 38 meshing with the inner gear 37 has a sufficiently large diameter in the same pitch circle, and the diameter of the feed roller 18 is larger than the diameter of the outer gear 38. Are also slightly larger in diameter. The diameter of the pitch circle of the inner gear 37 is larger than the diameter of a portion where the outer roller 16 is pressed against the flange 102a of the ridge 102 of the belt-shaped member 100 (this portion is knurled to prevent slippage). Is also small.
Accordingly, the peripheral speed (feed speed) of the feed roller 18 matches (synchronizes with) the feed speed of the outer roller 16 (that is, the forming speed of the lining tube).
An example of the specifications of the feed mechanism U including the feed roller 18 is shown below.
-Inner gear 37: module (m) = 2.5, number of teeth (Z) = 20, pitch circle diameter (PCD) = 50 mm
・ Outer gear 38: m = 2.5, Z = 45, PCD = 112.5mm
-Diameter of feed roller 18: 136 mm (when the feed roller 18 is a gear: m = 4, Z = 32, outer diameter = 136 mm)
・ Diameter of the knurled part of the outer roller 16: 57 mm
The feed roller 18 of the present embodiment employs a hard (usually steel, but may be a synthetic resin) disk, but may have a gear shape. Needless to say, in the gear, the diameter (outer diameter) of the feed roller is a tip circle diameter.

(Hydraulic motor 26)
The hydraulic motor 26 has its drive shaft connected to the first shaft portion 29 and is mounted on the front surface of the box 25. The hydraulic motor 26 is connected to an in-side pipe 41 a for sending oil to the hydraulic motor 26 and an out-side pipe 41 b for discharging oil from the hydraulic motor 26. Further, these pipes 41 are connected to a rotary joint 42 (see FIG. 3) attached to an appropriate position of the box 25 or the molding frame 13, and a pipe 43 connected to an external pressure source is connected to the rotary joint 42. You. Through the rotary joint 42, the working fluid is exchanged between the pipe 41b on the hydraulic motor 26 side that rotates and the external pipe 43 that does not rotate.
The driving force of the hydraulic motor 26 is transmitted to the first shaft portion 29 by the gear mechanism 24 and the hydraulic motor 26, and is transmitted to the second and third shaft portions 30 and 31 via the gear mechanism 24. .
Further, in the feed mechanism U, the rotational driving force of the third shaft portion (original shaft) 31 causes the inner gear 37 to rotate integrally, the outer gear 38 meshing with the inner gear 37, the feed roller The drive shaft (slave shaft) 36 is rotated in the reverse direction, and the rotational driving force of the feed roller drive shaft 36 is transmitted to the feed roller 18 at the end of the slave shaft 36, and as a result, the feed roller 18 is Rotate in the opposite direction.

  Attachment of the joining mechanism portion 19 to the lining tube R is performed by opening the upper portion of the box 25 at the front end of the lining tube R already formed and adjusting the pitch of the annular flange portion of the outer roller 16 to the protrusion of the belt-shaped member 100. The pitch of the ridges 102 is matched, after which the upper part is closed to the lower part, the closing device 27 is closed and its nuts are tightened.

Regulatory frame 10 and guide 12 (see FIGS. 5 and 6)
(Regulation frame 10)
The restriction frame 10 is made of steel, has great rigidity, and has a rectangular overall shape. In the present embodiment, a mold steel having a hollow groove 45 is used, and the groove 45 opens outward. The restriction frame 10 is assembled with a divided body.
(Guide 12)
The guide 12 is interposed between the molding frame 13 and the regulating frame 10, and guides the movement of the molding frame 13 along the trajectory of the regulating frame 10. More specifically, the guide element 12 has a bearing 46 which is pivotally attached to the shaft 21b of the molding frame 13 at both ends of the bifurcated main body, and the roller holder 47 is inward from the center of the main body. The roller holder 47 rotatably holds a rotating shaft 49 to which rollers 48 are attached on both sides. The roller 48 is inserted into the groove 45 of the regulating frame 10 and moves along the inner wall.

The guide 12A shown in FIGS. 12 and 13 adopts a configuration and arrangement different from those in the above-described example.
First, a bearing body is fixed to the link body 21 of the molding frame 13 via a rib 51 on a wall body of a link frame section 21a opposed to the link shaft section 21b, and a shaft body 52 is attached to the bearing body. It is inserted and held. The shaft body 52 is relatively short, allows axial movement with respect to the bearing body, and has stoppers 52a for preventing withdrawal at both ends.
The guide body 54 has a hinge shape including two wings 54A and 54B, and each wing 54A and 54B has an end bearing 54a for receiving the shaft 52 at an end. Central bearings 54b, 54b 'are formed on the pivots of the wings 54A, 54B so as to fit each other, and the roller shaft 55 is inserted and held.
The roller shaft 55 is long enough to allow axial movement with respect to the central bearings 54b, 54b ', and rollers 56 are rotatably mounted at both ends.
The restriction frame 10 has a groove 45 for restraining and holding the roller 56, which is substantially the same as that of the above-described embodiment, but has a wide opening, and the axial movement of the guide 12A with a margin of the opening. Forgive.
According to the guide 12A, a triangular frame is formed, and a more stable moving action can be obtained as compared with the guide 12 (46, 47, 48, 49) in the above-described example.

Auxiliary roller mechanism T (see FIGS. 2 and 3)
Furthermore, construction apparatus S present lining, an auxiliary roller mechanism T through a regulatory frame 10 are added.
That is, the auxiliary roller mechanism T is provided at four corners of the angular regulating frame 10 and extends rearward in the tube axis direction via the frame 58, and the rear end of the frame 58 The inner surface of the lining pipe R immediately after winding the roller 59 rotatably attached to the roller is pressed outward.

With this configuration, the lining pipe is constructed in the construction apparatus S as described below.
That is, the forming frame 13 in which the guide roller 11 and the joining mechanism 19 are assembled advances in the circumferential direction along the shape of the regulating frame 10 that maintains the same phase with respect to the tube cross section by driving of the driving unit 17. At this time, the plastically deformable band-shaped member 100 is spirally wound by the joining mechanism 19 to form a rectangular lining pipe R, and the feed roller 18 contacts the pipe wall of the sewer P, The rotation causes the construction apparatus S to be smoothly propelled. Further, as the forming frame 13 advances, the regulating frame 10 obtains the pushing force from the forming frame 13 via the guide 12 and advances with the forming frame 13.
In the auxiliary roller mechanism T, the contact roller 58 is strongly pressed against the inner surface of the lining tube R, and maintains the shape of the initial lining tube at a position near the rear of the forming frame 13. As a result, the regulating frame 10 is held independently and does not rotate with the forming frame 13 and smoothly advances.

Lining construction
The pipe-making type lining work (including the lining pipe work) in the sewer performed using the inside culvert lining construction apparatus S will be described.
The outline of the lining construction work in a sewer sewer is shown based on FIGS. 1-4 and FIG. In this construction work, an example of application to a sewer pipe P having a rectangular cross section will be described. In the figure, Q1 is an upstream manhole, O1 is its opening, Q2 is a downstream manhole, O2 is its opening, and E is the ground in which the sewer P is buried. In this construction work, the work is performed from the upstream manhole Q1 side to the downstream manhole Q2 side.
In the above-ground part, a feeding device (not shown) for the band-shaped member 100 is installed on the upstream side, and the band-shaped member 100 is installed in the manhole Q1 from the opening O1 of the human hole by the feeding device. Supplied continuously. Further, a hydraulic pressure source (not shown) is arranged on the downstream side.

The lining construction in the sewer is performed based on the following procedure.
(1) Preparation and initial process
(1a) Preparation Step The lining construction apparatus S is disassembled and carried into the human hole through the opening O1 of the human hole Q1 on the upstream side of the rectangular cross-section culvert P to be rehabilitated. The main pipe making apparatus S is assembled. The molding frame 13 of the construction apparatus S can be disassembled and assembled, and the restriction frame 10 is also made of a divided body, so that it can be easily carried into a human hole. Further, the joining mechanism 19 can be attached to the molding frame 13, so that it can be easily attached on site. The feed roller 18 and the feed mechanism U are incorporated in the joining mechanism section 19, and the feed roller 18 and the feed mechanism U are installed together with the assembly of the joining mechanism section 19. The molding frame 13 is restrained by the regulating frame 10 via the guides 12 and 12A, and is arranged in a rectangular shape around the regulating frame 10. A hydraulic piping system arranged from the downstream side is connected to the joining mechanism 19.
(1b) Attachment of the auxiliary roller mechanism T Further, the auxiliary roller mechanism T is attached to the regulating frame 10 of the construction apparatus S, and the contact roller 59 of the auxiliary roller mechanism T is installed at each corner of the regulating frame 10. I'm going to pull in.
(1c) Initial movement step The belt-like member 100 incorporating the plastically deformable material 120 is drawn into a human hole, introduced into the joining mechanism 19 of the lining construction apparatus S, and driven by the joining mechanism 19, the belt-like member 100 is moved. It is wound into a rectangular forming frame 13. At each corner of the regulating frame 10 and thus at each corner of the forming frame 13, the band-shaped member 100 is bent at a right angle by the plastic function of the plastic deformation material 120. The band members 100 that are in contact with each other in the second winding of the band member 100 are joined by their joints. The belt-shaped member 100 is wound several times around the forming frame 13 to produce a lining tube (initial lining tube) Ro.
(1d) Pushing of the auxiliary roller mechanism T After the rear end of the initial lining pipe Ro passes through the contact roller 58 of the auxiliary roller mechanism T, the contact roller 58 of the auxiliary roller mechanism T is placed on the inner surface of the initial lining pipe Ro. The cross section of the initial lining pipe Ro is held in the initial state in the forming frame 13 by being strongly pressed and fixed.

(2) Steady process The rotation of the inner and outer rollers 15 and 16 of the joining mechanism 19 causes the inner roller 15 and the outer roller 16 to be sandwiched by the rotation of the inner roller 15 and the outer roller 16. The belt-shaped member 100 newly supplied in connection with the pipe Ro is joined.
Furthermore, by driving the joining mechanism 19 of the present construction apparatus S, the forming frame 13 in which the guide roller 11 and the joining mechanism 19 are assembled advances along the shape of the regulating frame 10 via the guides 12 and 12A. . At the corners of the regulating frame 10, the joining rollers 15 and 16 of the joining mechanism 19 fold the belt-shaped member 100 inward. The belt-shaped member 100 has plastic deformability, and maintains the folded state as it is. In addition, the feed roller 18 rotates in the opposite direction to the outer roller 16 in conjunction with the joining mechanism 19, abuts against the pipe wall of the sewer P, and receives a reaction from the pipe wall due to the rotation, thereby causing the apparatus S to operate. Rotate.
The whole of the construction apparatus S is rotated and moved in the circumferential direction of the pipe (A direction), and advances in the pipe axis direction (B direction). Thus, the belt-shaped member 100 is spirally wound, and a rectangular lining tube R is manufactured.

(2a)
In this step, the feed roller 18 and the feed mechanism U perform the following operations.
That is, in the feed mechanism U incorporated in the joining mechanism 19, the feed roller 18 rotates in reverse to the rotation of the outer roller 16 due to the engagement of the gears (the inner gear 37 and the outer gear 38). When the joining mechanism 19 of the forming frame 13 that moves around the regulating frame 10 reaches the pipe bottom (the pipe bottom of the sewer P), the feed roller 18 abuts on the pipe bottom of the sewer P, and the rotation thereof causes Due to the reaction from the bottom of the pipe, the forming frame 13 and thus the entire apparatus S are moved (direction A) along the bottom of the pipe.
At this time, the circumferential rotation of the feed roller 18 takes a speed synchronized with the moving speed of the joining mechanism 19 (in other words, the forming speed of the lining tube R), and the bottom (and the side) of the lining tube R is formed smoothly. You.

(2b)
Further, in this step, the regulating frame 10 and the forming frame 13 maintain their positional relationship (phase) independently of each other by the auxiliary roller mechanism T attached to the regulating frame 10, and the mutual interference of the frames 10 and 13, that is, There is no rotation, and the guides 12 and 12A linked to the forming frame 13 move smoothly. That is, the circumferential movement of the main body portions of the guides 12 and 12A and the roller 56 in the groove 45 of the regulating frame 10 is rubbed, and there is no contact, so that the circumferential movement is smoothly performed.

(3) When the lining pipe R reaches the manhole on the downstream side, the driving of the construction apparatus S for lining is stopped, and the construction apparatus S is dismantled / removed via the manhole Q2 on the downstream side and the upstream side. Then, the lining pipe R protruding into each human hole on the downstream side is cut off.

(4) As shown in FIG. 17, a support H for providing stiffness to the lining pipe R is installed in the lining pipe R, and further, a solidified backing material for performing the lining pipe R in the next step. A reaction force member I that pushes down downward against the buoyancy caused by the injection of M is installed.
The support H forms a frame and has rigidity by itself, and is installed in close contact with the inner surface of the lining tube R to prevent deformation of the flexible lining tube R. Further, the reaction member I is an elastic rod-shaped body, the lower end of which abuts on the lower bottom of the lining pipe R, the upper end thereof penetrates the ceiling of the lining pipe R, and the upper end face is formed on the ceiling of the lining pipe R. Then, the rod-shaped body is extended, and the lining pipe R is pushed down by the pushing force.

(5) In each of the manholes Q1 and Q2, as shown in FIG. 17, the space between the sewer P and the lining pipe R is sealed V, and the gap between the sewer P and the lining pipe R over the entire length of the sewer P. A solid backfill material (so-called cement milk) M is injected into the portion, and after the solidification, the support H, the reaction member I, and the like are removed, and the lining construction is completed.

(Effects of the embodiment)
According to the feed roller 18, feed mechanism U for pipe culverts in lining with a device S of this embodiment, lining pipe R by the inner and outer surface roller 15, 16 of the peripheral rotational speed joining mechanism part 19 of the feed roller 18 Therefore, no interference occurs in the formation of the lining tube R due to the difference between the two speeds, and the bottom (and the side) of the lining tube R in the straight portion is formed smoothly.
Further, the feed roller 18 obtains the driving force from the driving shaft of the outer roller 16 of the joining mechanism 19, and the driving force is transmitted by the meshing of the gears. The smooth lining tube R is formed in response to the increase in size and weight.

(Modification 1) (see FIG. 16)
In the illustrated example of the present embodiment, the Oita (inner gear 37, outer gear 38) of the feed mechanism U is arranged inside the box 25, but in FIG. 4 shows another embodiment of the arrangement. In the other aspect, the same reference numerals are given to members equivalent to those in the above embodiment.
In this aspect, the relative positional relationship between the shaft 31 and the feed roller drive shaft 36 is the same as in the previous embodiment, but the inner gear 37 and the outer gear 38 are disposed outside the box 25 and the feed roller 18 Are arranged side by side on the outer gear 38 at a predetermined interval, whereby the size of the box 25 is reduced.
(Modification 2)
In the illustrated example of this embodiment, the feed roller drive shaft 36 of the feed mechanism U is disposed rearward of the shaft portion 31 with respect to the traveling direction of the joining mechanism portion 19. However, the feed roller drive shaft 36 is connected to the shaft portion. A mode in which the joint mechanism 19 is disposed forward with respect to the traveling direction of the joining mechanism 19 and a mode in which the joint mechanism 19 is disposed on the same vertical line as the shaft 31 are not excluded.

(2nd Embodiment)
19 and 20 show another embodiment (second embodiment) of the present invention. In the figure, the same members as those in the previous embodiment are denoted by the same reference numerals. Also in the following description, the same reference numerals are used for members equivalent to those in the above embodiment. The sewer P in the present embodiment targets a circular cross section.
The lining construction apparatus S1 of the second embodiment is characterized in that the forming frame 80 has a rigid annular shape. In the present embodiment, either an elastic band member or a band member having plastic deformability can be used, but an elastic band member is usually applied. Specifically, in the main forming frame 80, the guide roller 11 is pivotally supported between an annular front end plate 80a and a rear end plate 80b arranged in a row in front and rear, and the forming frame 80 is divided by a plurality of divided bodies 81. The end plates 81a are assembled by abutting and fixing each other. The joining mechanism 19 comprises an inner roller 15 and an outer roller 16 as in the previous embodiment. The box 25 of the drive unit 17 is fixed to the mounting portion 80c of the front end plate 80a of the forming frame 80, and the forming frame 80 are arranged integrally.
Also, as in the previous embodiment, the feed mechanism U for driving the feed roller 18 transmits the driving force of the feed roller 18 from the drive shaft of the outer roller 16 to the drive shaft of the feed roller 18 via meshing of the gears. Is done.

The lining construction main construction apparatus S1 is installed in the existing sewer P, and the belt-shaped member 100 is supplied from outside and introduced into the main construction apparatus S1.
By driving the construction apparatus S1, the annular lining tube R is advanced (b direction) of the annular construction R by the sandwiching and joining operation of the inner roller 15 and the outer roller 16 to the belt-shaped member 100 in the joining mechanism 19. Formed with it.
In this forming process, when the joining mechanism 19 reaches the lower bottom of the sewer P and further rises from the lowermost bottom, not only a large driving force is required, but also the device S1 is subjected to the eccentric action of the load. Although the rocking phenomenon occurs, the feed roller 18 suppresses the rocking state, and a smooth pipe-making operation is performed.
Further, when the joining mechanism 19 is raised from the lowest bottom of the pipe P, a large driving force is obtained due to the meshing of the gears of the feed mechanism U, and the peripheral speed of the feed roller 18 is reduced by the peripheral speed of the lining pipe R. By making the speed slightly higher than the forming speed, a round-trip motion action (elimination of the inner ring difference) is obtained, and the forming frame 80 rotates smoothly (direction A), so that the pipe forming action of the lining pipe R is further smoothed.
When the formation of the annular lining pipe R is completed in the culvert P, a solidified backing material M is filled between the culvert P and the lining pipe R.
In the illustrated example of the second embodiment, the feed roller 18 is arranged rearward in the rotation direction of the construction apparatus S1 with respect to the outer roller 16, but the front roller is preferably arranged in a forward direction. Adopted.

The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical concept of the present invention.
That is, the following embodiments are included in the technical scope of the present invention.
1) The drive source is of a hydraulic type in the present embodiment, but may be driven by air pressure or electric power.
2) In the lining construction apparatus S of the first embodiment, the auxiliary roller mechanism T is added, but may be omitted, and the auxiliary roller mechanism T is not essential in the present invention.

S: Construction equipment for lining in sewer, P: Sewer , R: Tubular body (lining pipe), U: Feeding mechanism 10: Regulatory frame, 11: Guide roller, 12, 12A: Guide, 13, 80: Molding Frame, 15: inner roller, 16: outer roller, 17: drive mechanism, 18: feed roller, 19: joining mechanism, 24: gear mechanism, 25: box, 29, 30, 31: shaft, 32, 32 , 33: gear, 36: feed roller drive shaft, 37: inner gear, 38: outer gear, 100: band member, 100A, 100B: joint (joint), 120: plastic deformable material

Claims (6)

In the sewer, joints are formed on both side edges and are continuously supplied, and a long belt-like member is spirally wound,
A tubular lining pipe formed by joining the mutually adjoining joints is left, and an additional lining pipe is additionally formed with a band-shaped member newly supplied in front of the already formed lining pipe,
At the front end of the already formed lining tube, there is a joining mechanism portion comprising an inner roller and an outer roller mounted on a drive shaft held by a rigid box and rotated in opposite directions by gear engagement. In a lining construction apparatus for arranging a closed forming frame and forming the additional lining tube by a sandwiching function of the inner roller and the outer roller,
In the box, a feed roller whose outer surface protrudes outward is disposed on a feed roller drive shaft disposed outside and parallel to a drive shaft of the external roller,
The feed roller drive shaft is driven by meshing of a gear with a drive shaft of the external roller,
A lining construction device in a sewer . 2. The lining construction device according to claim 1, wherein the feed roller is disposed behind the drive shaft of the outer roller with respect to a rotation direction of the lining construction device . 3. 2. The lining construction apparatus according to claim 1, wherein the feed roller is disposed coaxially with a driving shaft of the outer roller or in front of a driving shaft of the outer roller with respect to a rotation direction of the lining construction apparatus . 3. 4. A lining in a sewer according to any one of claims 1 to 3, wherein the forming frame is flexible and can be moved by being regulated via a guide along a rigid and rigid regulating frame . Construction equipment . The construction apparatus for lining in a sewer according to any one of claims 1 to 3, wherein the molding frame is an annular rigid body. In the sewer, joints are formed on both side edges and are continuously supplied, and a long belt-like member is spirally wound,
A tubular lining pipe formed by joining the mutually adjoining joints is left, and an additional lining pipe is additionally formed with a band-shaped member newly supplied in front of the already formed lining pipe,
At the front end of the already formed lining tube, there is a joining mechanism portion comprising an inner roller and an outer roller mounted on a drive shaft held by a rigid box and rotated in opposite directions by gear engagement. In a lining construction apparatus for arranging a closed forming frame and forming the additional lining tube by a sandwiching function of the inner roller and the outer roller,
In the box, a feed roller whose outer surface protrudes outward is disposed on a feed roller drive shaft disposed outside and parallel to a drive shaft of the outer roller, and the feed roller drive shaft is provided on the outer surface. a construction method for lining pipe made using the construction system for the pipe culvert lining, characterized in that it is driven by the meshing of the gears of the drive shaft of the roller,
The meshing speed of the gear mounted on the drive shaft of the outer roller and transmitting the driving force to the feed roller is lower than the forming speed of the lining tube by the joining mechanism, and the peripheral speed of the feed roller is Coincides with the forming speed of the lining tube of the joining mechanism ,
A method for constructing a lining pipe in a sewer characterized by the following.