EP3276125A1 - Lubrication system - Google Patents
Lubrication system Download PDFInfo
- Publication number
- EP3276125A1 EP3276125A1 EP17001265.2A EP17001265A EP3276125A1 EP 3276125 A1 EP3276125 A1 EP 3276125A1 EP 17001265 A EP17001265 A EP 17001265A EP 3276125 A1 EP3276125 A1 EP 3276125A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- lubricant
- lubricating system
- piston pump
- tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005461 lubrication Methods 0.000 title claims description 22
- 238000002347 injection Methods 0.000 claims abstract description 29
- 239000007924 injection Substances 0.000 claims abstract description 29
- 239000000314 lubricant Substances 0.000 claims abstract description 25
- 230000001050 lubricating effect Effects 0.000 claims abstract description 23
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 19
- 239000000440 bentonite Substances 0.000 claims abstract description 19
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000005641 tunneling Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000004605 External Lubricant Substances 0.000 description 1
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
Definitions
- the invention relates to a lubricating system, with which a lubricant, in particular bentonite, between a tunnel and a tunnel boring machine and / or a tube forming a tunnel tube can be introduced, consisting of at least one distribution network and a feed pump for the lubricant.
- a lubricant in particular bentonite
- Tunneling machines also known as tunnel boring machines, are full-surface machines that break down the entire tunnel cross-section to be built in one work step.
- An authoritative component of such a machine is a drill head, also called a plate, which has a drivable cutting head, which is equipped with removal tools, such as a plurality of roller bits.
- the advancement of the shield and the further displaceable components in the tunnel driving direction takes place by means of a main pressing station and at least one intermediate pressing station, as it is also referred to as a stretching line.
- the main press station which is located in a starting shaft, from which the boring of the tunnel, has an abutment, on which a press device is supported, by means of which as stanchion jacking pipes, which are used in the starting shaft depending on work progress, gradually in working feed direction are movable.
- a basic prerequisite for a well-functioning pipe jacking is the lowest possible skin friction between ground and the pipe string.
- the most important area to build up effective bentonite lubrication is to replace the formation of the annular gap between the ground and the pipe string, ie directly at the shield or subsequently at the transition to the first jacking pipe. Bentonite grouting in this area is also known as first grouting.
- the object of the invention is to provide a lubrication system which ensures an optimized, uniform bentonite distribution for tunnel lubrication.
- an essential feature of the invention is that the distribution network has at least one pump, which is arranged in the tunnel and connected with its pump chamber to an associated lubricant injection device.
- a pump is provided, which is located in the tunnel and is connected to the respective injection devices, the required press-in pressure at the respective lubrication station for Clearverpressung and Nachverpressung is built only in the tunnel tube. On the one hand, this does not require high-pressure piping routed through the route.
- an optimized, adapted to the respective needs of the associated lubricant injection device supply can be done in a simple and secure manner by controlling the drive of the respective pump, for example by speed control or selected switch-on.
- the amount of bentonite can be adapted to the operational conditions in such a way that it is possible to react to route-specific differences, such as increased bentonite requirement of individual route sections, for example in gravel areas.
- route-specific differences such as increased bentonite requirement of individual route sections, for example in gravel areas.
- the particularly effective reduction of skin friction reduces the need for Vorpresskraft and makes it possible to save intermediate stretches.
- a pressure-independent volume distribution with lubricant is achieved and, with the lubricating system, a volume distribution distribution to the individual points to be supplied with lubricants is achieved.
- the arrangement can be made such that at least one piston pump is present on the tunneling machine for a first compression with lubricant and / or at least for subsequent injection with lubricant in a part of strand elements of the tubing, preferably in each strand element, a piston pump is present.
- a discharge line can be connected to the pump chamber, which passes through the outer wall of the tunneling machine and / or the boundary wall of the respective strand element by means of the injection device, so that the discharge line opens directly into the annular gap on the tunnel wall.
- the pump chambers of respective piston pumps can be connected on the input side to a central lubricant supply via at least one supply line of the distribution network.
- the arrangement may be made such that the central lubricant supply has a supply station, which spends the lubricant, starting from a reservoir, in the direction of the individual piston pumps.
- a radial piston pump is provided as the respective piston pump, which has an eccentric drive for controlling its resettable by spring force in the individual pump chambers piston.
- the electric motor advantageously in the form of an asynchronous machine, may be connected to a central electrical supply unit in each radial piston pump.
- the arrangement can be made with advantage so that the respective piston is guided longitudinally movable in the manner of a spring plunger in the respective assignable pump chamber, at its one free end of the eccentric and can be controlled with its other free end adjacent to the pump chamber and limited to a pump chamber with variable volume, in which an inlet and an outlet valve open.
- the invention also relates to a mounting set for a lubrication system according to one of the preceding claims, comprising at least one piston pump driven by an electric motor, in particular a radial piston pump, and at least one part of a distribution network with delivery lines to which an injection device is connected is.
- a front cutting shoe or sign with 1 and a rotatable front cutting head located thereon are denoted by 3.
- This has on the front of the usual in such cutting heads removal tools, such as roller bits and / or other cutting and pressing tools.
- removal tools such as roller bits and / or other cutting and pressing tools.
- a press unit 11 located in the starting shaft 4 main press station 9 a press unit 11, which is supported on an abutment 13 and advances the already used jacking pipes 5 to the respective jacking lines until another jacking pipe 5, as indicated by directional arrow 15, used with retracted pressing unit 11 can be.
- the lubrication system for tunnel lubrication by means of a bentonite suspension has an injection device which is suitable for initial compression, which adjoins the shield 1 of the tunneling machine, having a lubricating ring 17 with distributed around the circumference injection sites.
- injection devices which are suitable for initial compression, which adjoins the shield 1 of the tunneling machine, having a lubricating ring 17 with distributed around the circumference injection sites.
- For the respective Nachverpressung injection points 19 are provided in succession of the jacking pipes 5 in a distributed arrangement, of which only some in Fig. 1 are indicated and numbered.
- Injection nozzles 29, which, like the lubricating ring 17, can be supplied by the suspension distribution network, respectively, open at the injection sites 19.
- the Fig. 2 schematically shows a part of the distribution network of the prior art, the aforementioned lubrication system ABLS.
- the known system has for the injection sites to be supplied, such as in Fig. 2 shown, for Nachverpressung provided on respective jacking pipes injection sites 19 and at the lubrication ring 17 of the first injection associated injection sites each provided in the tunnel interior, associated lubrication station 21.
- These each have a valve 25, which receives from a guided in the tubing main line 23 by an externally arranged feed pump bentonite suspension, which is under the injection pressure.
- the valve 25 forwards metered quantities of the suspension via distributor lines 27 to injection ports 29 located at the injection sites 19.
- the Fig. 3 shows in a highly schematically simplified representation of an embodiment of the lubricating system according to the invention, wherein the lubricating station 21 of the example shown, as well as in the prior art pointing Fig. 2 the case is supplied to the Nachverpressung on a respective jacking pipe 5, the injection points located thereon 19 with the bentonite suspension.
- the supply of the lubrication points on the adjoining the plate 1 of the tunneling machine lubricating ring 17 by means of the lubricating system according to the invention in the same manner as in Fig. 3 is shown for the Nachverpressung respective jacking pipes 5.
- the respective lubrication station 21 has a pump generating the press-in pressure, in the form of a radial in the example shown Piston pump 31, on.
- the feed pump of a central, external lubricant supply station via a guided through the tunnel 7 supply line 36 to the pump chambers 33 of the radial piston pump 31 via an associated suction valve 35, the bentonite suspension can be fed.
- the respective radial piston pumps 31, which in 4 and 5 are shown in the usual way for the movement of their resettable by means of compression springs 39 piston 41 an eccentric 43, which is driven by an electric motor, preferably by means of an asynchronous motor.
- the pump power can be optimally adapted to the supply requirement at the injection sites 19.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Ein Schmiersystem, mit dem ein Schmierstoff, insbesondere Bentonit, zwischen einem Tunnel (7) und einer Tunnel-Vortriebsmaschine (1) und/oder einem eine Tunnelröhre bildenden Rohrstrang (5) einbringbar ist, bestehend aus mindestens einem Verteilnetz und einer Förderpumpe für den Schmierstoff, ist dadurch gekennzeichnet, dass das VerteiInetz mindestens eine Pumpe (31) aufweist, die im Tunnel (7) angeordnet und mit ihrer Pumpenkammer (33) an eine zugehörige Schmierstoff-Injektionseinrichtung (17, 19, 29) angeschlossen ist.A lubricating system with which a lubricant, in particular bentonite, between a tunnel (7) and a tunneling machine (1) and / or a tube forming a tube (5) can be introduced, consisting of at least one distribution network and a feed pump for the lubricant , characterized in that the distribution network comprises at least one pump (31) arranged in the tunnel (7) and connected with its pumping chamber (33) to an associated lubricant injection device (17, 19, 29).
Description
Die Erfindung betrifft ein Schmiersystem, mit dem ein Schmierstoff, insbesondere Bentonit, zwischen einem Tunnel und einer Tunnel-Vortriebsmaschine und/oder einem eine Tunnelröhre bildenden Rohrstrang einbringbar ist, bestehend aus mindestens einem Verteilnetz und einer Förderpumpe für den Schmierstoff.The invention relates to a lubricating system, with which a lubricant, in particular bentonite, between a tunnel and a tunnel boring machine and / or a tube forming a tunnel tube can be introduced, consisting of at least one distribution network and a feed pump for the lubricant.
Tunnelvortriebsmaschinen, auch Tunnelbohrmaschinen genannt, sind Vollschnittmaschinen, die den gesamten zu bauenden Tunnelquerschnitt in einem Arbeitsschritt abbauen. Ein maßgebliches Bauteil einer derartigen Maschine, wie sie beispielhaft in dem Dokument
Eine Grundvoraussetzung für einen gut funktionierenden Rohrvortrieb ist eine möglichst geringe Mantelreibung zwischen Baugrund und dem Rohrstrang. Um dies zu erreichen, ist es Stand der Technik, zwischen Baugrund und Rohrstrang eine Bentonit-Suspension einzubringen, die durch ihre Schmiereigenschaft die Reibung herabsetzt. Der wichtigste Bereich, um eine effektive Bentonit-Schmierung aufzubauen, liegt an der Stelle der Bildung des Ringspalts zwischen Baugrund und Rohrstrang, also direkt am Schild oder daran anschließend beim Übergang zum ersten Vortriebsrohr. Die Bentonit-Verpressung in diesem Bereich wird auch als Erstverpressung bezeichnet. Um einen durchgängigen und gleichmäßigen Schmierfilm am Rohrstrang sicherzustellen, werden an den sich anschließenden Vortriebsrohren des Rohrstrangs in sogenannter Nachverpressung weitere Bentonit-Mengen eingepresst, um mögliche im Vortriebsverlauf auftretende Schmiermittelverluste in den anstehenden Baugrund, wie sie durch Einwanderung in den Baugrund oder durch Auswaschung oder dergleichen entstehen, auszugleichen.A basic prerequisite for a well-functioning pipe jacking is the lowest possible skin friction between ground and the pipe string. To achieve this, it is state of the art to introduce a bentonite suspension between ground and pipe string, which reduces the friction by its lubricating property. The most important area to build up effective bentonite lubrication is to replace the formation of the annular gap between the ground and the pipe string, ie directly at the shield or subsequently at the transition to the first jacking pipe. Bentonite grouting in this area is also known as first grouting. In order to ensure a continuous and uniform lubricating film on the pipe string, more amounts of bentonite are pressed into the subsequent jacking pipes of the pipe string in so-called Nachverpressung to possible occurring in the tunneling lubricant losses in the upcoming subsoil, such as by immigration into the ground or by leaching or the like arise, compensate.
Im Stand der Technik, wie es beispielsweise in der Produktinformation "Automatisches Bentonit-Schmiersystem ABLS" der Firma VMT GmbH, Stegwiesenstraße 24, 76646 Bruchsal, beschrieben ist, wird hierfür so vorgegangen, dass in Zuordnung zu den Injektionsstellen, wie sie durch Spalte für die Erstverpressung am Schild und durch Injektionsstutzen gebildet sind, die zur Nachverpressung an Vortriebsrohren vorgesehen sind, Schmierstationen angeordnet sind. Als Komponenten eines Verteilnetzes erhalten diese Stationen über eine durch den Rohrstrang geführte Bentonit-Hauptleitung von einer Förderpumpe unter dem Einpressdruck gelieferte Bentonit-Suspension zur Verteilung an die jeweiligen Injektionsstellen.In the prior art, as described for example in the product information "Automatic bentonite lubrication system ABLS" the company VMT GmbH, Stegwiesenstraße 24, 76646 Bruchsal, this is done so that in association with the injection sites, as indicated by column for Erstverpressung on the shield and are formed by injection nozzles, which are provided for Nachverpressung on jacking pipes, lubrication stations are arranged. As components of a distribution network, these stations receive bentonite suspension supplied by a feed pump under the press-fit pressure for distribution to the respective injection sites via a bentonite main line routed through the pipe string.
Ausgehend von diesem Stand der Technik stellt sich die Erfindung die Aufgabe, ein Schmiersystem zur Verfügung zu stellen, das eine optimierte, gleichmäßige Bentonit-Verteilung für die Tunnelschmierung gewährleistet.Based on this prior art, the object of the invention is to provide a lubrication system which ensures an optimized, uniform bentonite distribution for tunnel lubrication.
Erfindungsgemäß ist diese Aufgabe durch ein Schmiersystem gelöst, das die Merkmale des Patentanspruchs 1 in seiner Gesamtheit aufweist.According to the invention this object is achieved by a lubrication system having the features of claim 1 in its entirety.
Gemäß dem kennzeichnenden Teil des Anspruchs 1 besteht eine wesentliche Besonderheit der Erfindung darin, dass das Verteilnetz mindestens eine Pumpe aufweist, die im Tunnel angeordnet und mit ihrer Pumpenkammer an eine zugehörige Schmierstoff-Injektionseinrichtung angeschlossen ist. Dadurch, dass erfindungsgemäß eine Pumpe vorgesehen ist, die sich im Tunnel befindet und an die jeweiligen Injektionseinrichtungen angeschlossen ist, wird der benötigte Einpressdruck an der jeweiligen Schmierstation für Erstverpressung und Nachverpressung erst im Tunnelrohr aufgebaut. Zum einen ist dadurch keine durch die Trasse geführte Hochdruckverrohrung erforderlich. Zum anderen kann eine optimierte, an den jeweiligen Bedarf der zugehörigen Schmierstoff-Injektionseinrichtung angepasste Versorgung auf einfache und sichere Weise durch Steuerung des Antriebs der jeweiligen Pumpe erfolgen, beispielsweise durch Drehzahlsteuerung oder gewählte Einschaltzeiten. In optimaler Weise ist dadurch die Bentonit-Menge den betrieblichen Gegebenheiten derart anpassbar, dass auf trassenspezifische Unterschiede, wie erhöhten Bentonitbedarf einzelner Trassenabschnitte beispielsweise in Kiesbereichen, reagiert werden kann. Die besonders effektive Reduktion der Mantelreibung verringert den Bedarf an Vorpresskraft und ermöglicht es, Zwischendehnerstrecken einzusparen. Des Weiteren ist mit der erfindungsgemäßen Lösung eine druckunabhängige Volumenverteilung mit Schmierstoff erreicht und es ist mit dem Schmiersystem eine Volumenzwangsverteilung zu den einzelnen mit Schmierstoffen zu versorgenden Stellen erreicht.According to the characterizing part of claim 1, an essential feature of the invention is that the distribution network has at least one pump, which is arranged in the tunnel and connected with its pump chamber to an associated lubricant injection device. Characterized in that according to the invention a pump is provided, which is located in the tunnel and is connected to the respective injection devices, the required press-in pressure at the respective lubrication station for Erstverpressung and Nachverpressung is built only in the tunnel tube. On the one hand, this does not require high-pressure piping routed through the route. On the other hand, an optimized, adapted to the respective needs of the associated lubricant injection device supply can be done in a simple and secure manner by controlling the drive of the respective pump, for example by speed control or selected switch-on. In an optimal way, the amount of bentonite can be adapted to the operational conditions in such a way that it is possible to react to route-specific differences, such as increased bentonite requirement of individual route sections, for example in gravel areas. The particularly effective reduction of skin friction reduces the need for Vorpresskraft and makes it possible to save intermediate stretches. Furthermore, with the solution according to the invention, a pressure-independent volume distribution with lubricant is achieved and, with the lubricating system, a volume distribution distribution to the individual points to be supplied with lubricants is achieved.
Mit Vorteil kann die Anordnung so getroffen sein, dass für eine Erstverpressung mit Schmierstoff mindestens eine Kolbenpumpe an der Vortriebsmaschine vorhanden ist und/oder für Nachverpressung mit Schmierstoff zumindest bei einem Teil von Strangelementen des Rohrstranges, vorzugsweise bei jedem Strangelement, eine Kolbenpumpe vorhanden ist.Advantageously, the arrangement can be made such that at least one piston pump is present on the tunneling machine for a first compression with lubricant and / or at least for subsequent injection with lubricant in a part of strand elements of the tubing, preferably in each strand element, a piston pump is present.
An der jeweiligen Kolbenpumpe kann an der Pumpenkammer ausgangsseitig eine Abgabeleitung angeschlossen sein, die mittels der Injektionseinrichtung die Außenwand der Vortriebsmaschine und/oder die Begrenzungswand des jeweiligen Strangelements durchgreift, so dass die Abgabeleitung unmittelbar in den Ringspalt an der Tunnelwand mündet.On the output side of the respective piston pump, a discharge line can be connected to the pump chamber, which passes through the outer wall of the tunneling machine and / or the boundary wall of the respective strand element by means of the injection device, so that the discharge line opens directly into the annular gap on the tunnel wall.
Die Pumpenkammern jeweiliger Kolbenpumpen können eingangsseitig an eine zentrale Schmierstoffversorgung über mindestens eine Zuführleitung des Verteilnetzes angeschlossen sein.The pump chambers of respective piston pumps can be connected on the input side to a central lubricant supply via at least one supply line of the distribution network.
Mit Vorteil kann die Anordnung hierbei so getroffen sein, dass die zentrale Schmierstoffversorgung eine Versorgungsstation aufweist, die den Schmierstoff, von einem Vorratsbehälter ausgehend, in Richtung der einzelnen Kolbenpumpen verbringt.Advantageously, the arrangement may be made such that the central lubricant supply has a supply station, which spends the lubricant, starting from a reservoir, in the direction of the individual piston pumps.
Mit besonderem Vorteil ist als jeweilige Kolbenpumpe eine Radial-Kolbenpumpe vorgesehen, die zur Ansteuerung ihrer mittels Federkraft in den einzelnen Pumpenkammern rückstellbaren Kolben einen Exzentertrieb aufweist.With particular advantage, a radial piston pump is provided as the respective piston pump, which has an eccentric drive for controlling its resettable by spring force in the individual pump chambers piston.
Mit einem für den Direktantrieb des Exzentertriebs an jeder Radial-Kolbenpumpe angeschlossenen Elektromotor ist eine kompakte Motor-Pumpeneinheit realisierbar.With a for the direct drive of the eccentric drive connected to each radial piston pump electric motor, a compact motor-pump unit can be realized.
Der Elektromotor, vorteilhafterweise in Form einer Asynchronmaschine, kann bei einer jeden Radial-Kolbenpumpe an eine zentrale elektrische Versorgungseinheit angeschlossen sein.The electric motor, advantageously in the form of an asynchronous machine, may be connected to a central electrical supply unit in each radial piston pump.
Hinsichtlich der Bauweise der Radial-Kolbenpumpe kann die Anordnung mit Vorteil so getroffen sein, dass der jeweilige Kolben in der Art eines Federstößels in der jeweils zuordenbaren Pumpenkammer längsverfahrbar geführt ist, an seinem einen freien Ende von dem Exzentertrieb ansteuerbar ist und mit seinem anderen freien Ende an die Pumpenkammer angrenzt und einen Pumpenraum mit veränderlichem Volumen begrenzt, in den ein Ein- und ein Auslassventil einmünden.With regard to the design of the radial piston pump, the arrangement can be made with advantage so that the respective piston is guided longitudinally movable in the manner of a spring plunger in the respective assignable pump chamber, at its one free end of the eccentric and can be controlled with its other free end adjacent to the pump chamber and limited to a pump chamber with variable volume, in which an inlet and an outlet valve open.
Gemäß dem Patentanspruch 10 ist Gegenstand der Erfindung auch ein Einbauset für ein Schmiersystem nach einem der vorstehenden Ansprüche, bestehend aus mindestens einer mittels eines Elektromotors antreibbaren Kolbenpumpe, insbesondere Radial-Kolbenpumpe, und zumindest einem Teil eines Verteilnetzes mit Abgabeleitungen, an die jeweils eine Injektionseinrichtung angeschlossen ist.The invention also relates to a mounting set for a lubrication system according to one of the preceding claims, comprising at least one piston pump driven by an electric motor, in particular a radial piston pump, and at least one part of a distribution network with delivery lines to which an injection device is connected is.
Nachstehend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels im Einzelnen erläutert.The invention with reference to an embodiment shown in the drawing is explained in detail.
Es zeigen:
- Fig. 1
- eine stark schematisch vereinfacht und in perspektivischer Schrägansicht gezeichnete Darstellung der Hauptbestandteile einer üblichen Tunnelbohrmaschine, versehen mit einem Schmiersystem gemäß einem Ausführungsbeispiel der Erfindung;
- Fig. 2
- den Querschnitt eines Trassenabschnitts einer Tunnel-Vortriebsstrecke mit schematisch vereinfacht dargestellten Komponenten eines Schmiersystems gemäß dem Stand der Technik;
- Fig. 3
- den Querschnitt eines Trassenabschnitts einer Tunnel-Vortriebsstrecke, versehen mit einem schematisch vereinfacht gezeichneten Ausführungsbeispiel des erfindungsgemäßen Schmiersystems;
- Fig. 4
- eine Stirnansicht auf eine eine Komponente des erfindungsgemäßen Schmiersystems bildende Radial-Kolbenpumpe mit abgenommenem Gehäusedeckel; und
- Fig. 5
- eine Schnittdarstellung der Radial-Kolbenpumpe entsprechend der Schnittlinie V - V von
Fig. 4 .
- Fig. 1
- a highly schematically simplified and drawn in perspective oblique view representation of the main components of a conventional tunnel boring machine, provided with a lubrication system according to an embodiment of the invention;
- Fig. 2
- the cross section of a route section of a tunnel driving section with schematically simplified components of a lubrication system according to the prior art;
- Fig. 3
- the cross section of a route section of a tunnel driving section, provided with a schematically simplified drawn embodiment of the lubricating system according to the invention;
- Fig. 4
- an end view of a component of the lubricating system forming radial piston pump with removed housing cover; and
- Fig. 5
- a sectional view of the radial piston pump according to the section line V - V of
Fig. 4 ,
In der lediglich skizzenhaft und stark vereinfacht gezeichneten Darstellung von
Das Schmiersystem für die Tunnelschmierung mittels einer Bentonit-Suspension weist eine Injektionseinrichtung auf, die für eine Erstverpressung, die sich an den Schild 1 der Vortriebsmaschine anschließt, einen Schmierring 17 mit um den Umfang verteilten Injektionsstellen aufweist. Für die jeweilige Nachverpressung sind in Aufeinanderfolge der Vortriebsrohre 5 in verteilter Anordnung Injektionsstellen 19 vorgesehen, von denen lediglich einige in
Die
Die
Während beim Stand der Technik die Bentonit-Suspension über die im Rohrstrang geführte Hauptleitung 23 von der externen Förderpumpe unter dem Einpressdruck den Schmierstationen 21 zugeführt wird, weist beim erfindungsgemäßen System die jeweilige Schmierstation 21 eine den Einpressdruck erzeugende Pumpe, beim gezeigten Beispiel in Form einer Radial-Kolbenpumpe 31, auf. Mittels der Förderpumpe einer zentralen, externen Schmierstoff-Versorgungsstation, die in den Figuren nicht gezeigt ist, ist über eine durch den Tunnel 7 geführte Versorgungsleitung 36 den Pumpenkammern 33 der Radial-Kolbenpumpe 31 über ein zugehöriges Saugventil 35 die Bentonit-Suspension zuführbar. Da die Bentonit-Suspension lediglich unter dem Förderdruck steht, da der Einpressdruck erst mittels der Radial-Kolbenpumpe 31 aufgebaut ist, ist für die Versorgungsleitung 36 keine Hochdruckverrohrung erforderlich. Für die Versorgung der Injektionsstelle 19 (ebenso wie für die Austrittsschlitze am Schmierring 17) sind, wie bei den Schmierstationen 21 des Standes der Technik, Verteilerleitungen 27 vorhanden, die zu dem zugeordneten Injektionsstutzen 29 führen. Die Verteilerleitungen 27 sind an den Pumpenkammern 33 über deren Druckventile 37 angeschlossen.Whereas in the prior art the bentonite suspension is supplied to the
Die jeweiligen Radial-Kolbenpumpen 31, die in
Die
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016009198.3A DE102016009198A1 (en) | 2016-07-27 | 2016-07-27 | lubrication system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3276125A1 true EP3276125A1 (en) | 2018-01-31 |
Family
ID=59409142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17001265.2A Withdrawn EP3276125A1 (en) | 2016-07-27 | 2017-07-25 | Lubrication system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3276125A1 (en) |
DE (1) | DE102016009198A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110397442A (en) * | 2019-07-04 | 2019-11-01 | 中交天和机械设备制造有限公司 | The synchronization drag reduction method and system of shield machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5141363A (en) * | 1991-04-02 | 1992-08-25 | Stephens Patrick J | Mobile train for backfilling tunnel liners with cement grout |
US5803665A (en) * | 1995-06-07 | 1998-09-08 | Stephens; Patrick J. | Method and apparatus for continuous production of quick-setting foamed cement grout with selectively adjustable proportions |
EP1538302A1 (en) * | 2003-12-04 | 2005-06-08 | Walter Bau-Aktiengesellschaft | Method of filling void spaces outside a machine produced tunnel wall |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5200584B2 (en) * | 2008-02-29 | 2013-06-05 | 株式会社大林組 | Filler, method for producing filler, and method for stabilizing natural ground |
DE102015000494A1 (en) | 2015-01-13 | 2016-07-14 | Hydrosaar Gmbh | hydraulic cylinders |
-
2016
- 2016-07-27 DE DE102016009198.3A patent/DE102016009198A1/en active Pending
-
2017
- 2017-07-25 EP EP17001265.2A patent/EP3276125A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5141363A (en) * | 1991-04-02 | 1992-08-25 | Stephens Patrick J | Mobile train for backfilling tunnel liners with cement grout |
US5803665A (en) * | 1995-06-07 | 1998-09-08 | Stephens; Patrick J. | Method and apparatus for continuous production of quick-setting foamed cement grout with selectively adjustable proportions |
EP1538302A1 (en) * | 2003-12-04 | 2005-06-08 | Walter Bau-Aktiengesellschaft | Method of filling void spaces outside a machine produced tunnel wall |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110397442A (en) * | 2019-07-04 | 2019-11-01 | 中交天和机械设备制造有限公司 | The synchronization drag reduction method and system of shield machine |
Also Published As
Publication number | Publication date |
---|---|
DE102016009198A1 (en) | 2018-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3513582C2 (en) | Proportionally operating hydraulic valve with information acquisition regarding the strongest pressures in the consumer circles | |
DE2443800A1 (en) | HYDRAULICALLY OPERATED IMPACT DEVICE | |
DE2209152A1 (en) | Method for realizing a special power range of a hydraulic motor and motor for carrying out this method | |
DE2615597B2 (en) | Rock mining device for a tunnel boring machine, in particular for a shield boring device | |
EP3276125A1 (en) | Lubrication system | |
DE3003590C2 (en) | High pressure radial piston pump | |
DE102006021749A1 (en) | Device for generating an axial oscillation movement of a rotating roller of a printing machine and roller with such a device | |
AT393293B (en) | METHOD FOR TURN DRILLING AND TURN DRILL DEVICE | |
DE102009036317B4 (en) | Sewer cleaning device | |
DE3918119A1 (en) | Operating arrangement for linear motor(s) esp. for dispenser - contains controller acting as pump or drive motor depending on line pressure w.r.t. working pressure | |
DE3019374C2 (en) | ||
DE19814033B4 (en) | Drill pipe guide and drill with drill pipe guide | |
DE69712089T2 (en) | drilling | |
DE2056071A1 (en) | Hydraulic adjustment device for tools | |
DE3011449C2 (en) | Device for making an upwardly directed borehole | |
EP3808981A1 (en) | Constant pump for use in conveying a hydraulic fluid in a closed hydraulic circuit, closed hydraulic circuit, construction machine and method for operating a constant pump in a closed hydraulic circuit | |
DE3247632C1 (en) | Device for producing an upward borehole | |
DE4137177A1 (en) | Lubricating saw chain in forestry machine | |
DE3734926C2 (en) | ||
DE2031877C3 (en) | Extraction machine, in particular for the long-front mining of coal deposits | |
DE3216936C2 (en) | Nozzles on cutting extraction tools | |
DE973856C (en) | Throwing shovel loading machine, especially for mining operations | |
DE2857176C1 (en) | Hydraulic drive for the protection of a weaving machine | |
DE3347955C2 (en) | Adjustment device for moving blades of flow working machines of axial construction with vertically standing shaft | |
EP3045738A1 (en) | Hydraulic cylinder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20180731 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20210622 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230803 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MEYER, JOERG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20231214 |