DE102014111680A1 - Method and device for laying a pipeline wound from plastic profile strips in open channel trenches. - Google Patents

Abstract

The invention relates to a method for laying a plastic profile strip with the help of a wound in a winding basket on a guideway wrapper wound coiled tubing in an open channel trench, especially as a sewer line. In order to provide a simple and cost-effective installation, a laying vehicle (10) is arranged on an open trench section (4) of the laying trench (1), with a stock of plastic (17) provided on the laying vehicle (10) or close to it. Profile strip (18) this is removed and fed to the pipe maker (6). The tube maker (6) is oscillatingly held on a holding arm (12) and lowered in the region of the opened trench section (4) of the laying trench (1) almost to its sole (4.1). In the tube finisher (6) the plastic profile strip (18) by means of a rotating winding basket (30) in a conventional manner to the last turn (5.1) of the already manufactured winding tube (5) with locking of the adjacent edge regions of the supplied plastic profile strip ( 18) and the plastic profile strip (18) of the last made turn (5.1) added. The pipe maker (6) with winding basket (30) is powered by the drive of the laying vehicle (10) with energy, which is supplied via a supply line (14). The laying vehicle (10) follows the manufacturing progress of the winding tube (5), wherein the tube finisher (6) of the extension of the winding tube (5) via the pendulum suspension on the support arm (12) follows. After laying the wound winding tube (5), the open trench section (4.1) with soil (2.2) is backfilled.

Description

Technical environment

The invention relates to a method for laying a plastic profile strip using a wound in a winding basket on a guideway wrapper wound coil in an open channel trench, in particular as a sewer line; it further relates to an apparatus for carrying out this method.

State of the art

In order to rehabilitate in particular sewage channels, winding tubes wound from plastic profile strips can be advantageously used. These are either wound from a inspection shaft in its base and inserted or retracted into the existing sewer ( JP 2004-314 635 . JP 2005-342915 . JP 2005-061545 . DE 10 2008 002 995 ). In this case, the profile strip is supplied to the winding basket through a selected inspection shaft and formed in this before the mouth of the channel to be rehabilitated to the winding tube. The winding tube produced in this way is inserted or retracted into the canal to be rehabilitated.

To circumvent the winding at the channel mouth has also been proposed to produce the winding tube in the channel by means of a moving with the winding progress in the channel winding basket ( DE 20 2006 018 269 U1 ). Here, the plastic profile strip is fed through a inspection shaft and the already rehabilitated channel section located in the channel and run by this pipe maker with winding basket, which moves with the winding progress. In this case, the plastic profile strip is supplied to the winding basket through the interior of which this is added after a successful in the winding basket deflection from the inside of the winding basket tangentially to the profile strip of the previous turn with overlapping edge profiling and the edge profiling in the overlapping region of both plastic profile stiffener joined and locked together. Since in this case the winding tube is made progressively in the channel, it requires no insertion or retraction.

task

The invention is based on the problem of designing a laying of wound from plastic profile strip winding tubes in open channels or trenches so that such transfers can be performed easier and more economical.

solution

This problem is solved according to the invention for the genus defined in the preamble of the independent claims by their features contained in the license plate; advantageous developments and preferred embodiments describe the dependent claims.

To lay one of a wound as a plastic profile strip pipe, a laying vehicle is provided on or above a prefabricated trench for the pipeline, which carries a pipe maker, which can be lowered at the proposed laying in a dredged installation trench close to the trench bottom. In this case, the laying vehicle advantageously has a boom whose head can be positioned above the channel trench in such a way that this head can be positioned over the open part of the laying trench. About this head is a pipe paver carrying lifting means, a rope or a chain, out, which is lowered or raised by means of a reel. The boom is advantageously part of a crane arranged on the laying vehicle.

The intended for winding the winding tube plastic profile strip is a manufactured in the extrusion process endless strip of plastic, one side is formed to form a smooth inner surface of the winding tube as a smooth side, and the second side has longitudinal ribs, on the one hand for increased stability of the Wickelrohres care and on the other hand anchoring of the winding tube in the ground after refilling the trench causes, thereby the necessary ring rigidity is brought about. This plastic profile strip is manually withdrawn or unwound from a wound on a drum stock of plastic profile strips and supplied to the existing of a rotating winding basket tube finisher. This forms in his orbits on the one hand plastic profile strip and created from the tapered plastic profile strip to be joined wraps. The two edge regions of the plastic profile strip are formed differently so that the one of the edge regions with the other of the edge regions connectable, advantageously latched. The newly formed in the tube finisher winding is applied as the following winding with its the side region of the preceding, last manufactured winding side facing side of the side region of the last-made winding, that thereby the two different side regions abut each other.

The abutting plastic profile strips of the last-made coil and the just-formed coil are - approximately in EP 0 266 720 A1 described, in itself known manner - with the adjacent edge areas overlapping each other. The marginal profiles of the edge regions in the overlap area fit together and are mechanically pressed according to a latching. In this case, adhesives, sealants or gaskets can also be used as molded elements, by means of which a seal is obtained, which passes to the pipe manufacturer via a feed line from the laying vehicle or from the auxiliary vehicle and is introduced into the closing unit in the overlapping area.

With each revolution of the winding basket in or on the tube manufacturer, the tube length is extended so about a width of the plastic profile strip. To compensate for the extending length of the winding tube of the winding basket is movably suspended on the support arm of the laying vehicle and the laying vehicle is moved in the direction of the manufacturing direction away from the finished winding tube. The necessary for the operation of the tube paver drive energy is supplied to this via a supply line from the laying vehicle, which is advantageously guided over the support arm approximately parallel to the carrier chain.

The supply of plastic profile strip is provided on a drum, from which this is withdrawn and fed to the pipe manufacturer. For this purpose, a self-propelled or towed by the laying vehicle auxiliary vehicle is provided. In a preferred embodiment, the laying vehicle on a second arm as a support arm for the supply of plastic profile strip receiving drum. An attached to the support arm holding frame takes on the drum, deducted from the plastic profile strip the winding basket. In order to counteract the twist caused by the rotation of the coiler, the support frame is connected via a swivel with an axis of rotation lying at right angles to the axis of the drum.

For the production of the winding tube lowered in the laying trench and held near the bottom of the trench tube paver is provided which has a winding basket. The withdrawn from the stock plastic profile strip is fed to the pipe maker, wherein the freely suspended part sags because of the inherited in the supply winding formation in a kind of irregular spirals, which do not match the winding tube ultimately forming spirals of the winding. Therefore, the storage drum must be rotatably arranged for the plastic profile strip to compensate for torsions. In a hanging storage drum, this is done advantageously by means of a vortex in the suspension.

Description of the drawings

An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows

1 A side view of a laying vehicle when laying a winding tube in a prefabricated trench;

2 A partial view of the laying vehicle according to the 1 in front view;

3 a perspective view of a pipe maker; and

4 a side view of the tube finisher according to the 3 ,

embodiments

The 1 and 2 show the situation at a laying place 4 in which a spot made of a plastic profile strip 18 wrapped, in as a laying place 4 open channel section of the installation trench 1 is placed. A channel section 4 is before inserting the winding tube 5 by removing the soil 2.1 open. After inserting the winding tube 5 becomes the open channel section 4 by introducing soil 2.2 backfilled. It goes without saying that the situation presented here both the area to be opened 2.1 as well as the already backfilled area 2.2 can only play shortened. In the area of the open canal trench 4 is one at the installation ditch 1 intended laying vehicle 10 established.

This laying vehicle 10 has a chassis 11 on, with the cab with drive 11.2 and a first arm as a holding arm 12 a crane for the pipe maker 6 is provided. The holding arm 12 carries the pipe maker 6 on a movable suspension, such as a chain 13 which allows a commute. About this chain 13 is the pipe maker 6 until near the bottom 4.1 the laying place 4 lowered. From the drive of the laying vehicle 10 is a (not designated here) hydraulic line led to the head of the support arm to which the supply line 14 for the pipe maker 6 connected.

The laying vehicle 10 has in this illustration a second boom as a support arm 15 for a storage drum 17 on top of that a certain supply of plastic profile strips 18 is wound up. From this stock is the plastic profile strip 18 withdrawn and the pipe maker 6 supplied, from this supplied plastic profile strip 18 with a rotating basket 30 in known manner, the winding tube 5 shaped.

Because in the pipe maker 6 a the turns for the winding tube 5 forming basket 30 rotates, remains a twisting of the plastic profile strip 18 (as in 18.1 not recognize). Therefore, precaution is taken to unthread. It is advantageous, the storage drum 17 rotatable on the support arm 15 unmount. This is a holding dishes 16 on the support arm 15 attached, which is the drum axis of the storage drum 17 rotatably receives so as to peel off the plastic profile strip 18 from the storage drum 17 to enable. In order to ensure the rotation necessary for the unthreading about an axis perpendicular to the axis of rotation axis, is in the connection of the holding harness 16 to the support arm 15 a vortex 16.1 intended.

As 2 identifies is the chassis 11 of the laying vehicle 10 designed so that it is the installation trench 4 portal-like overlaps. This is the driver's cab (not shown here) with drive 11.2 above the laying trench and thus also the boom as a holding arm 12 with the pipe paver lowered into the laying trench 6 , This applies in this embodiment also for the support arm 15 from which the plastic profile strip 18 unhindered to the pipe manufacturer 6 can be fed.

When laying a winding tube 5 in the open trench, the finished wound pipe becomes the sand bed / soil in the ground 4.1 of the trench 4 stored. Since the finished winding tube 5 in the usual manufacturing processes in the pipe maker 6 with fixed basket 30 must rotate about its longitudinal axis, would result in considerable friction forces with increasing manufacturing length. In order to avoid this, a winding device is required for a device for producing a line to be laid in a trench 6 provided, the winding basket 30 is rotatable. For the production of the winding tube 5 will be a plastic profile strip 18 from a supply 17 on plastic profile strips 18 deducted and in the pipe maker 6 rotatably arranged winding basket 30 fed, which in its turns the contiguous turns for the winding of the winding tube 5 forms and their overlapping abutting edge portions together and locked together locked.

The in the 3 and 4 exemplified tube manufacturers 6 consists essentially of the base plate 20 that with a chain stop 23 is provided, and on one side of the rotatable basket 30 is stored centrally. From the other side of the base plate 20 the drive motor is provided, whose output through the base plate 20 guided, with a gear 22 on a sprocket of the master gear 25 together and thus the drive for the winding basket 30 forms. The winding basket 30 has an externally to the winding basket 30 leading strip introduction 29 on, for an orderly inlet of the incoming plastic profile strip 18 Caring. This plastic profile strip 18 is in the basket 30 laid in turns, extending from the inside against the outer rollers 32 with profiling engaging in the longitudinal ribs. The so in the basket 30 manufactured winding tube 5 leaves the wrapper 6 through a the base plate 20 piercing opening 24 , At the same time forms the smooth sides 18 ' of the plastic profile strip 18 the inside 5 ' of the finished winding tube 5 while those with the longitudinal ribs 19 ( 4 ) provided side of the plastic profile strip 18 the outside 5 '' forms. This outside 5 '' will be after filling the open part of the laying place 4 of the winding trench in a loose soil or sand bed set. A determination of the finished winding tube 5 can also be done by embedding sand, soil or concrete.

The winding basket 30 supplied plastic profile strips 18 is from a strip supply of a storage drum 17 withdrawn and to the pipe maker 6 guided. In between hangs the plastic profile strip 18 with a certain lots, however, has a considerable mechanical stress whose forces from the strip introduction 29 must be recorded. The tapered plastic profile strip 18 so can the last manufactured winding 5.1 of the winding tube 5 are created under overlap of the facing side profile part of both profiles, and thus their locking is ensured.

As a drive for the winding basket 30 is the drive motor 21 provided, which is about a parallel to the carrier chain 13 guided supply line 14 is supplied with drive energy. As drive energy - depending on availability - electrical or hydraulic energy can be provided. The drive acts via an output gear 22 on a master gear 25 which is provided with an outer sprocket. This master gear is equipped with a number of guides on the base plate 20 is rotatably mounted. This master gear 25 forms the basis for the basket 30 to which concentric in the base plate 20 a central opening 24 is provided, through which the finished winding tube 5 to put down in the ditch 4 exit.

For centering the master gear 25 and thus also the winding basket 30 , in relation to the central opening 24 , are on the base plate 20 some centering guides 26.1 . 26.2 arranged in pairs, in which the with the output gear 21.1 of the drive motor 21 cooperating master gear 25 is guided centrally, wherein in the centering 26.1 . 26.2 provided, upstanding on the master gear wheels or balls to reduce friction. Between the centering guides 26.1 . 26.2 a couple is one Zentrierzahnrad 27 provided as the master gear 25 drives or this in a centric position with respect to the central opening 24 holds.

The winding basket 30 itself is surrounded by several concentric to the central opening 24 and advantageously arranged equidistantly and on the master gear 25 normally upright rotating outer roller 32 formed, whose free ends in the master gear 25 as well as in an outer ring 33 are rotatably mounted. Here is the plastic profile strip 18 to form the winding of the winding tube 5 after its introduction into the winding basket 30 through the strip introduction 34 laid in turns, which from the inside to the outer rollers 32 create, what the external role 32 one of the profiling of the plastic profile strip 18 corresponding counter profile has. This arrangement ensures that the plastic profile strip 18 properly to the last made turn 5.1 of the winding tube 5 forming winding can be created and assembled.

To form the winding tube 5 the adjacent side edges of the supplied plastic profile strip 18 and the plastic profile strip of the last manufactured winding 5.1 to lock together is a closing unit 35 with an inner roll 36 and an outside role 37 provided, both synchronized to the circulation of the winding basket 30 are driven. This drive is dependent on the drive of the winding basket via a rigid coupling to the base plate 20 , This is the base plate 20 with a central opening 24 surrounding sprocket 24.1 provided on the one on a synchronization shaft 38 sitting gear 39 combs and so the closing unit 35 from the circulation of the winding basket depending on their drive means drives, wherein the circulation of the Wicker basket 30 thus forcibly synchronizing the drive of the closing unit. These two roles of the closing unit 35 , the inner roll 36 and the outside roll 37 Follow - seen in the direction of the tapered plastic profile strip 18 - the strip inlet 34 through which the tapered plastic profile strip 18 so to the last made winding 5.1 of the winding tube 5 is applied, that lay the profiles of the mutually facing side areas together.

For locking of the edge areas of the last manufactured turn to be latched together 5.1 with the edge region of the newly created turn of the supplied plastic profile strip 18 is the one whose edge areas next to the last free of the longitudinal ribs 19 a detent button 19.1 provided in one in the last of the longitudinal ribs 19.3 the other side provided Rastaushöhlung 19.2 is depressible, with the detent button 19.1 in the recessed excavation 19.2 is fixed by the geometry. To achieve this locking, the inner roller can 36 the closing unit 35 can be provided with a rubber-elastic jacket for applying the necessary force for pressing. The outside role 37 absorbs this force and keeps the back pressure and thus enforces the introduction of the snap button 19.1 in the catch excavation 19.2 , This is the adjoining edge region of the profile of the last manufactured coil 5.1 with the edge region, in a the diameter of the winding tube to be wound 5 corresponding distance lie, at least positively and advantageously also positively connected to each other, wherein the nested profile parts of a latch are deformed accordingly. For a seal which extends beyond the locking, adhesive or sealing compound or a seal are additionally introduced into the overlap area in the region of the closing unit. The so wound winding tube 5 leaves the pipe maker 6 through the central opening 24 the base plate 20 and thus becomes without rotation in the prefabricated trench 4 filed, then with soil 2.1 . 2.2 is backfilled.

LIST OF REFERENCE NUMBERS

1

laying ditch

2.1

ground

2.2

ground

3

4

open section of the installation trench

4.1

grave sole

5

winding tube

5.1

last manufactured winding

5 '

inside

5 ''

outside

6

pipe finisher

7

8th

9

10

laying vehicle

11

chassis

11.2

Cab with drive

12

Boom as a holding arm

12.1

Head of the jib

13

carrier chain

14

supply line

15

Support arm for storage drum

16

Holding harness (for storage drum)

16.1

whirl

17

storage drum

18

Plastic profile strip

18.1

Twisting (by circulation of a wrapper)

18 '

smooth side

19

rib

19.1

catch button

19.2

Rastaushöhlung

19.3

last rib of the plastic profile strip

19.4

blocking vane

20

baseplate 20 .

21

drive motor 21

21.1

output gear 21.1

22

23

chain stopper

24

central opening 24

24.1

Toothing on the circumference of the central opening

25

Master gear 25

26.1

centering guides 24

26.2

centering guides 24

27

Zentrierzahnrad

28

29

strip introduction

30

wrap basket

31

inner roller

32

External roller with profiling

32.1

Verrastungsbereich

33

outer ring 21.2

34

35

sealer

36

inner roller

37

outer roller

38

synchronizing shaft

38.1

synchronization pinion

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2004-314635 [0002]
• JP 2005-342915 [0002]
• JP 2005-061545 [0002]
• DE 102008002995 [0002]
• DE 202006018269 U1 [0003]
• EP 0266720 A1 [0008]

Claims (15)

Method for laying a pipeline wound from plastic profile strips with the aid of a winding former wound in a winding basket on a guide track in an open channel trench, in particular as a sewage line, characterized by the following method steps: - a laying vehicle ( 10 ) is at an open trench section ( 4 ) of the laying trench ( 1 ) arranged. - From one of the laying vehicle ( 10 ) or near this provided storage drum ( 17 ) with a supply of plastic profile strips ( 18 ), this is removed and the pipe manufacturer ( 6 ). - The pipe maker ( 6 ) is oscillating on a holding arm ( 12 ) and in the region of the opened trench section ( 4 ) of the laying trench ( 1 ) almost to its sole ( 4.1 ) lowered. - In the pipe maker ( 6 ) the plastic profile strip ( 18 ) by means of a circulating winding basket ( 30 ) in a manner known per se to the last turn ( 5.1 ) of the already manufactured winding tube ( 5 ) with locking of the adjacent edge regions of the supplied plastic profile strip ( 18 ) and the plastic profile strip ( 18 ) of the last made turn ( 5.1 ) added. - The pipe maker ( 6 ) with winding basket ( 30 ) is driven by the drive of the laying vehicle ( 10 ) supplied with energy via a supply line ( 14 ) is supplied. - The laying vehicle ( 10 ) follows the manufacturing progress of the winding tube ( 5 ), whereby the pipe manufacturer ( 6 ) of the extension of the winding tube ( 5 ) via the oscillating suspension on the holding arm ( 12 ) follows. - After laying the wound winding tube ( 5 ) the opened trench section ( 4.1 ) with soil ( 2.2 ) backfilled. A method according to claim 1, characterized in that by the circulation of the winding basket ( 30 ) in the pipe maker ( 6 ) conditional twisting of the plastic profile strip ( 18 ) by a rotatable arrangement of the storage drum ( 17 ) will be annulled. A method according to claim 1, characterized in that by mechanical stresses in between the storage drum ( 17 ) and the strip inlet ( 29 ) on the winding basket ( 30 ) of the pipe manufacturer ( 6 ) freely hanging plastic profile strips ( 18 ) conditional forces through the strip inlet ( 29 ) on the winding basket ( 30 ) are caught. Device for carrying out the method according to one of claims 1, 2 or 3 for laying one with the aid of a in a pipe maker ( 6 ) with a winding basket circulating on a base plate ( 30 ) from a supplied plastic profile strip ( 18 ) wound pipeline ( 5 ) in an open channel trench ( 4 ), in particular as a sewer, with one side ( 18 ' ) of the plastic profile strip ( 18 ) is smooth and the second side with longitudinally extending ribs ( 19 ), and wherein the two edges of the plastic profile strip ( 18 ) have mutually cooperating locking profiles, characterized by a laying trench ( 4 ) laying vehicle ( 10 ) and a storage drum ( 17 ) with a supply of plastic profile strips ( 18 ), the laying vehicle ( 10 ) a chassis ( 11.1 ) with drive and cab ( 11.2 ) and at least one projecting arm as a holding arm ( 12 ), wherein the pipe manufacturer ( 6 ) on the holding arm ( 12 ) is suspended in a pendulum manner, whereby 10 ) or in this arranged storage drum ( 17 ) the plastic profile strip ( 18 ) deducted from the pipe manufacturer ( 6 ) and as a winding tube ( 5 ) from the pipe manufacturer ( 6 ) through a central opening ( 24 ) in the base plate ( 20 ) leaving on the ground ( 4.1 ) of the trench ( 4 ) can be stored. Device according to claim 4, characterized in that the laying vehicle ( 10 ) interacts with a storage vehicle having a support arm ( 15 ) having a holding harness ( 16 ) for the storage drum ( 17 ) with the supply of plastic profile strips ( 18 ), whereby the laying vehicle ( 10 ) coupled as a self-propelled vehicle with the laying vehicle or as a trailer of the laying vehicle ( 10 ) is trained. Device according to claim 4, characterized in that the laying vehicle ( 10 ) a second arm as a support arm ( 15 ) holding the holding harness ( 16 ) for the storage drum ( 17 ) with the supply of plastic profile strips ( 18 ) wearing. Apparatus according to claim 5 or 6, characterized in that the holding dishes ( 16 ) via a vortex ( 16.1 ) rotatable on the support arm ( 15 ) is attached. Device according to one of claims 5, 6 or 7, characterized by a on or in the tube finisher ( 6 ) rotatably arranged winding basket ( 30 ), whereby the winding basket ( 30 ) one with a drive ( 21 ) cooperating master gear ( 25 ), on which a number of concentrically arranged outer rollers ( 32 ) are arranged. Apparatus according to claim 8, characterized in that the outer rollers ( 32 ), a profile with longitudinal ribs ( 19 ) formed to windings run-in part of the plastic profile strip ( 18 ) have corresponding counter profile. Apparatus according to claim 8 or 9, characterized in that the profiling of the outer rollers ( 32 ) in which the overlap of adjacent edge areas of tapered plastic profile strip ( 18 ) and plastic profile strips of the last produced turn ( 5.1 ) assigned area ( 32.1 ) is omitted. Device according to one of claims 5 to 10, characterized by a in the inlet of the plastic profile strip ( 18 ) in or on the pipe manufacturer ( 6 ) arranged winding basket ( 30 ) for absorbing the forces due to mechanical stresses in the plastic profile strip ( 18 ) strip introduction ( 29 ). Device according to one of claims 3 to 11, characterized by a closing unit ( 35 ) with an inner roller ( 36 ) as a pressure roller and an outer roller ( 37 ) as an investment roller, wherein at least the inner roller ( 36 ) with one with the circulation of the winding basket ( 30 Synchronized drive interacts. Apparatus according to claim 12, characterized in that for synchronization a synchronization shaft ( 38 ) with terminal, on a sprocket ( 24.1 ) at or in the central opening ( 24 ) meshing synchronizer pinion ( 38.1 ) is provided. Apparatus according to claim 12 or 13, characterized in that the inner roller ( 36 ) has an elastic coating as a jacket. Device according to one of claims 3 to 14, characterized by a supply of a locking point between adjacent regions of the plastic profile strip sealing adhesive or a sealant to the sealing unit ( 35 ).

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