EP1637794B1 - Milling device for trench walls - Google Patents
Milling device for trench walls Download PDFInfo
- Publication number
- EP1637794B1 EP1637794B1 EP04022096.4A EP04022096A EP1637794B1 EP 1637794 B1 EP1637794 B1 EP 1637794B1 EP 04022096 A EP04022096 A EP 04022096A EP 1637794 B1 EP1637794 B1 EP 1637794B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive
- drive shaft
- bearing
- trench wall
- transmission
- 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.)
- Expired - Lifetime
Links
- 238000003801 milling Methods 0.000 title description 8
- 239000000314 lubricant Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000005461 lubrication Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 8
- 239000004519 grease Substances 0.000 description 4
- 239000012208 gear oil Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/13—Foundation slots or slits; Implements for making these slots or slits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
Definitions
- the invention relates to a trench cutter according to the preamble of claim 1.
- a trench wall cutter with these features goes for example from the EP-0 848 112 B1 out.
- the lower bearing of the drive shaft is lubricated by the gear oil in the gearbox. Due to the increased distance between the gearbox in the bearing plate and the drive, the upper bearing of the drive shaft can not or hardly be lubricated directly by lubricants from the gearbox housing. There is a risk of increased bearing wear due to insufficient lubrication.
- US 4,764,135 discloses a stern drive for a ship in which oil is circulated between a lower housing and an upper housing by means of a threaded shaft and a grooved sleeve.
- the invention is therefore an object of the invention to provide a trench wall cutter with generic features, in which the maintenance is kept very low.
- the drive shaft has an external thread, which is designed as a conveying thread for conveying lubricants in the direction of the drive.
- a basic idea of the invention is to convey lubricant from the gear box to the elements of the attachment of the drive to the drive shaft to be lubricated by the drive shaft which extends from the gear box to the drive.
- the drive shaft is formed with an external thread, which is used as a conveying thread for conveying the lubricant upon rotation of the drive shaft.
- a distributor device for further distributing the lubricant.
- This distributor sprays the lubricant delivered by the drive shaft.
- the distributor can be injection lugs or edges on the output shaft.
- this device has a toothing. This gearing can be used both for transmitting the torque of the drive to the drive shaft, as well as for distributing the lubricant. This is particularly simple because the drive shaft is set in motion for transmitting the torque of the drive and the lubricant is sprayed by the rotation and the teeth in the connecting sleeve.
- At least one bearing in particular rolling bearing, is arranged, and the drive shaft is designed for lubricating the at least one bearing.
- At least one seal in particular a sliding seal, is arranged in a region of the output of the drive and the drive shaft is designed for lubricating the at least one seal.
- the trench wall cutter is further characterized in that a connecting sleeve is arranged between the drive and the drive shaft, on the outside of which the at least one bearing, particularly preferably and the at least one seal, is arranged.
- a connecting sleeve is arranged between the drive and the drive shaft, on the outside of which the at least one bearing, particularly preferably and the at least one seal, is arranged.
- FIG. 1 The basic structure of a trench wall cutter 10 'is in FIG. 1 shown.
- a pair of Fräsradnaben 19 are arranged, which are driven by a Fräswelle 13.
- the cutting wheels can be releasably secured.
- the drive shaft 13 is connected to a ring gear 15 which is rotatably supported on the bearing plate 12 via crown gear bearing 16.
- the ring gear 15 meshes with a drive pinion 17 whose axis of rotation extends substantially perpendicular to the cutting wheel shaft 13.
- the drive pinion 17 is in turn rotatably mounted in the bearing plate 12.
- the drive pinion 17 is connected via a first non-rotatable connection 23 with a drive shaft 20 ', which parallel and centric to the drive pinion 17 after extends to the top of the drive.
- a second rotationally fixed connection 24 ' which in this case is a tongue and groove connection. This serves to connect to a coupling element 31, via which the torque from the drive to the drive shaft 20 'is transmitted.
- the drive shaft 20 ' is rotatably supported by a drive shaft bearing 22, which is arranged liquid-tight in a bearing housing 30.
- a holder 32 is provided on the cutter frame 40, over which the trench wall cutter 10 'can be transported.
- Fig. 1 The related to Fig. 1 described components, which are designated by a reference numeral without quotation mark, can be provided in the trench wall cutter 10 according to the invention substantially without much change.
- FIG. 2 shows a trench wall cutter 10 according to the invention on a drive shaft 20 is located at the lower end in the bearing plate 12, a gear coupling 25. At the other, upper end of the drive shaft 20, a distribution device is attached.
- the drive shaft 20 is located in a gear plate 21 which is adjacent to the external thread 44 of the drive shaft 20.
- the oil level 45 in the transmission of the trench wall cutter 10 extends to the lower end of the drive shaft 20.
- the distribution device 24 has a spray edge.
- the Vereilungs pleased 24 also designed as a component with an external arc toothing. Due to the radial splashing of the lubricant located in the connecting sleeve 46 ball bearings 49 are supplied with sufficient lubricant. Likewise, the mechanical seal 50 is protected from drying out by the splashing of the lubricants. Both the drive 48 and the connecting sleeve 46 are protected in the milling frame 40. Excess lubricant can from the upper region via an annular channel 27 and a return bore 28 down to the transmission be removed and cooled there.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Harvester Elements (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Gear Transmission (AREA)
- Crushing And Grinding (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Description
Die Erfindung betrifft eine Schlitzwandfräse gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a trench cutter according to the preamble of claim 1.
Eine Schlitzwandfräse mit diesen Merkmalen geht beispielsweise aus der
Die untere Lagerung der Antriebswelle wird durch das Getriebeöl im Getriebekasten geschmiert. Durch den erhöhten Abstand zwischen dem Getriebe im Lagerschild und dem Antrieb kann die obere Lagerung der Antriebswelle nicht oder kaum mehr direkt durch Schmierstoffe aus dem Getriebekasten im Lagerschild geschmiert werden. Es besteht die Gefahr eines erhöhten Lagerverschleißes aufgrund unzureichender Schmierung.The lower bearing of the drive shaft is lubricated by the gear oil in the gearbox. Due to the increased distance between the gearbox in the bearing plate and the drive, the upper bearing of the drive shaft can not or hardly be lubricated directly by lubricants from the gearbox housing. There is a risk of increased bearing wear due to insufficient lubrication.
Ein Trockenlaufen der Dichtungen und Lager ist aber zu verhindern, da durch nicht mehr funktionsfähige Dichtungen Suspension, die sich im Frässchlitz zur Stützung dieses befindet, in das Getriebe und den Antrieb der Schlitzwandfräse eindringen kann. Neben dem zusätzlichen Aufwand durch einen solchen Zwischenfall, der zum Trockenlegen des Getriebes und des Antriebes notwendig ist, können in ungünstigen Fällen auch Beschädigungen an der Schlitzwandfräse verursacht werden.Dry running of the seals and bearings is to be prevented, however, because no longer functioning seals suspension, which is located in the slot for supporting this, in the transmission and the drive of the trench wall cutter can penetrate. In addition to the additional expense of such an incident, which is necessary for draining the transmission and the drive, damage to the trench wall cutter can be caused in unfavorable cases.
Aber auch das wartungsbedingte Auswechseln der Lager oder Dichtungen erfordert einen Auseinanderbau der Schlitzwandfräse, die in diesem Zeitraum nicht einsatzbereit ist. Auch ergeben sich Probleme, wenn ein solches Wartungsintervall während des Fräsens anfällt, und so das Fräsen unterbrochen werden muss, die Schlitzwandfräse aus dem Frässchlitz entfernt werden muss, gewartet und dann erst wieder in den Frässchlitz eingebracht werden kann.But the maintenance-related replacement of bearings or seals requires disassembly of the trench wall cutter, which is not ready for use in this period. Also, problems arise when such a maintenance interval is incurred during milling, and so the milling must be interrupted, the trench wall cutter must be removed from the Frässchlitz, maintained and then can be re-introduced into the Frässchlitz.
Bei gattungsgemäßen Schlitzwandfräsen werden deswegen entweder dauergeschmierte Lager benutzt oder für die beweglichen Teile und Dichtungen im oberen Endbereich der Antriebswelle wird eine separate Fettschmierung installiert. Dies bedingt aber einen erhöhten Wartungsaufwand, da die Lager und Dichtungen in kurzen Zyklen überprüft und ausgetauscht werden müssen. Darüber hinaus erhöht dies die Betriebskosten und reduziert die effektive Einsatzzeit der Schlitzwandfräse.In generic trench wall milling either permanently lubricated bearings are therefore used or for the moving parts and seals in the upper end of the drive shaft, a separate grease lubrication is installed. However, this requires increased maintenance, since the bearings and seals must be checked and replaced in short cycles. In addition, this increases the operating costs and reduces the effective operating time of the trench wall cutter.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Schlitzwandfräse mit gattungsgemäßen Merkmalen zu schaffen, bei der der Wartungsaufwand besonders gering gehalten ist.The invention is therefore an object of the invention to provide a trench wall cutter with generic features, in which the maintenance is kept very low.
Die Aufgabe wird erfindungsgemäß durch eine Schlitzwandfräse mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind in den abhängigen Ansprüchen angegeben.The object is achieved by a trench cutter with the characterizing features of claim 1. Advantageous embodiments are given in the dependent claims.
Nach der Erfindung ist vorgesehen, dass die Antriebswelle ein Außengewinde aufweist, welches als Fördergewinde zum Fördern von Schmiermitteln in Richtung zum Antrieb ausgebildet ist.According to the invention it is provided that the drive shaft has an external thread, which is designed as a conveying thread for conveying lubricants in the direction of the drive.
Ein Grundgedanke der Erfindung besteht darin, durch die Antriebswelle, die sich vom Getriebekasten zum Antrieb erstreckt, Schmiermittel vom Getriebekasten zu den zu schmierenden Elementen der Befestigung des Antriebs an der Antriebswelle zu befördern. Hierzu ist die Antriebswelle mit einem Außengewinde ausgebildet, welches als Fördergewinde zum Fördern der Schmiermittel bei Drehung der Antriebswelle genutzt wird. Durch den Transport der Schmiermittel aus dem Getriebe im Lagerschild in Richtung zum Antrieb kann an der Verbindung des Antriebes mit der Antriebswelle auf die Benutzung von dauergeschmierten Lagern oder einer separaten Fettschmierung verzichtet werden. Dadurch können die notwendigen Wartungsintervalle erheblich vergrößert werden. Die Gefahr des Trockenlaufens von Lagern oder Dichtungen ist praktisch vermieden. Es erhöht sich die effektive Betriebsdauer einer Schlitzwandfräse und somit auch deren Produktivität.A basic idea of the invention is to convey lubricant from the gear box to the elements of the attachment of the drive to the drive shaft to be lubricated by the drive shaft which extends from the gear box to the drive. For this purpose, the drive shaft is formed with an external thread, which is used as a conveying thread for conveying the lubricant upon rotation of the drive shaft. By transporting the lubricant from the gearbox in the end shield in the direction of the drive can be dispensed with the connection of the drive with the drive shaft on the use of permanently lubricated bearings or a separate grease lubrication. As a result, the necessary maintenance intervals can be considerably increased. The risk of dry running of bearings or seals is virtually avoided. It increases the effective life of a trench cutter and thus their productivity.
Grundsätzlich ist es möglich, Fette zur Schmierung der Lager und Dichtungen zu nutzen. Bei der Verwendung von Fetten oder anderen Schmiermitteln ist der Transport durch das Fördergewinde der Antriebswelle schwieriger und stark abhängig von der Viskosität des Schmiermittels. Getriebeöl wird deshalb hierzu als Schmiermittel benutzt, welches sich im Getriebe im Lagerschild befindet. Durch dessen Benutzung ist das Nutzen eines zweiten, anderen Schmiermittels überflüssig. Ebenso müssen keine Bevorratungsräume für ein anderes Schmiermittel vorgesehen werden.Basically, it is possible to use greases for lubrication of bearings and seals. When using greases or other lubricants, the transport through the delivery thread of the drive shaft is more difficult and strongly dependent on the viscosity of the lubricant. Gear oil is therefore used as a lubricant, which is located in the gearbox in the bearing plate. By using it, the use of a second, different lubricant is unnecessary. Likewise, no storage space for another lubricant must be provided.
Am oberen Ende der Antriebswelle ist eine Verteileinrichtung zum weiteren Verteilen des Schmiermittels vorgesehen. Diese Verteileinrichtung verspritzt das durch die Antriebswelle geförderte Schmiermittel. Somit können alle Dichtungen und Lager geschmiert werden, die am Antrieb und am oberen Bereich der Antriebswelle vorgesehen sind. Die Verteileinrichtung können Spritznasen oder -kanten an der Abtriebswelle sein. Bei einer vorteilhaften Ausführungsform der Verteileinrichtung zum weiteren Verteilen der Schmiermittel weist diese Einrichtung eine Verzahnung auf. Diese Verzahnung kann sowohl zur Übertragung des Drehmomentes des Antriebes auf die Antriebswelle genutzt werden, als auch zum Verteilen des Schmiermittels. Dies erfolgt besonders einfach, da die Antriebswelle zur Übertragung des Drehmomentes des Antriebs in Bewegung versetzt wird und das Schmiermittel durch die Rotation und die Verzahnung in der Verbindungshülse verspritzt wird. Dadurch, dass diese Verzahnung auch zum Übertragen des Drehmoments genutzt wird, muss kein zusätzliches Bauteil in der Verbindungshülse zum Verteilen des Schmiermittels vorgesehen werden. Grundsätzlich wäre es möglich, durch das Fördergewinde der Antriebswelle Schmiermittel, die durch das Getriebe im Lagerschild verspritzt werden, in Richtung zum Antrieb zu transportieren. Hierbei ist es aber aufwändig, eine genügend große Menge an Schmiermitteln zuverlässig in Richtung zum Antrieb zu transportieren. Besonders einfach kann eine minimal notwendige Transportmenge dadurch sichergestellt werden, dass eine Aufnahme für Schmiermittel vorgesehen ist, in welche zumindest ein unteres Ende des Außengewindes der Antriebswelle hineinreicht. Durch diese Aufnahme kann ein kontinuierlicher Transport von ausreichend Schmiermitteln in Richtung zum Antrieb ohne zusätzliche Kontrolleinrichtung erreicht werden. Hierdurch wird die Gefahr des Trockenlaufens der Dichtungen oder der Lager weiter reduziert.At the upper end of the drive shaft, a distributor device is provided for further distributing the lubricant. This distributor sprays the lubricant delivered by the drive shaft. Thus, all seals and bearings can be lubricated, which are provided on the drive and at the top of the drive shaft. The distributor can be injection lugs or edges on the output shaft. In an advantageous embodiment of the distribution device for further distributing the lubricant, this device has a toothing. This gearing can be used both for transmitting the torque of the drive to the drive shaft, as well as for distributing the lubricant. This is particularly simple because the drive shaft is set in motion for transmitting the torque of the drive and the lubricant is sprayed by the rotation and the teeth in the connecting sleeve. Because this toothing is also used for transmitting the torque, no additional component in the connecting sleeve for distributing the lubricant must be provided. In principle, it would be possible to transport lubricant through the conveying thread of the drive shaft, which are sprayed through the gearbox in the end shield, in the direction of the drive. However, it is costly to reliably transport a sufficiently large amount of lubricant in the direction of the drive. Particularly simple, a minimum necessary transport amount can be ensured that a receptacle for lubricant is provided, in which extends at least a lower end of the external thread of the drive shaft. Through this recording, a continuous transport of sufficient lubricant towards the drive can be achieved without additional control device. As a result, the risk of dry running of the seals or bearings is further reduced.
Im Bereich des Abtriebes des Antriebes ist mindestens ein Lager, insbesondere Wälzlager, angeordnet, und die Antriebswelle ist zur Schmierung des mindestens einen Lagers ausgebildet. Durch die Schmierung der Lager durch die Schmiermittel, die durch die Antriebswelle aus dem Lagerschild her transportiert und verteilt werden, kann eine wartungsintensive Fettschmierung der Lager entfallen oder vereinfacht werden. Ebenso müssen keine selbstschmierenden Lager mehr genutzt werden, die ebenfalls einen erhöhten Kosten- und Wartungsaufwand mit sich bringen.In the region of the output of the drive, at least one bearing, in particular rolling bearing, is arranged, and the drive shaft is designed for lubricating the at least one bearing. By lubricating the bearings by the lubricants, which are transported and distributed by the drive shaft from the end shield ago, a high-maintenance grease lubrication of the bearings can be omitted or simplified. Likewise, self-lubricating bearings no longer need to be used, which also entail increased costs and maintenance.
In einer weiteren vorteilhaften Ausführungsform ist in einem Bereich des Abtriebes des Antriebes mindestens eine Dichtung, insbesondere eine Gleitdichtung, angeordnet und die Antriebswelle zur Schmierung der mindestens einen Dichtung ausgebildet. Durch den Transport von Schmiermitteln aus dem Getriebekasten im Lagerschild durch das Außengewinde der Antriebswelle und die Verteilung der Schmiermittel durch eine Verteileinrichtung ist keine wartungsintensive Fettschmierung für Dichtungen, die sich im Bereich des Abtriebes des Antriebes befinden, mehr notwendig. Eine regelmäßige Kontrolle zur Überprüfung der Schmierung der Dichtung ist also weitaus seltener nötig. Auch wird durch das ständige Schmieren der Dichtung das Risiko des Eindringens von Stützsuspension aus dem Frässchlitz verringert.In a further advantageous embodiment, at least one seal, in particular a sliding seal, is arranged in a region of the output of the drive and the drive shaft is designed for lubricating the at least one seal. By the transport of lubricants from the gear box in the bearing plate by the external thread of the drive shaft and the distribution of the lubricant through a distributor no maintenance-intensive grease lubrication for seals that are in the field of the output of the drive, more necessary. Regular inspection to check the lubrication of the seal is therefore much less necessary. Also, the constant lubrication of the seal reduces the risk of penetration of support slurry from the mill slot.
Die Schlitzwandfräse ist ferner dadurch gekennzeichnet, dass zwischen dem Antrieb und der Antriebswelle eine Verbindungshülse angeordnet ist, an deren Außenseite das mindestens eine Lager , besonders bevorzugt und die mindestens eine Dichtung, angeordnet ist. Durch diese Konstruktion erfolgt zum einen eine besonders gute Abdichtung der Verbindungshülse und des Antriebes gegenüber der sich im Frässchlitz befindenden Suspension. Zum anderen wird durch die Lager unterstützt, dass die Verbindungshülse stabil und dennoch reibungsarm um den Antrieb und die Antriebswelle gelagert ist. Somit wird eine erhöhte Haltbarkeit des Antriebs, der Verbindungshülse und der Antriebswelle einer Schlitzwandfräse erreicht.The trench wall cutter is further characterized in that a connecting sleeve is arranged between the drive and the drive shaft, on the outside of which the at least one bearing, particularly preferably and the at least one seal, is arranged. By this construction, on the one hand, a particularly good sealing of the connecting sleeve and the drive against the suspension located in the milling slot takes place. On the other hand, it is supported by the bearings that the connecting sleeve is mounted stably and yet with low friction around the drive and the drive shaft. Thus, increased durability of the drive, the connecting sleeve and the drive shaft of a trench cutter is achieved.
Die Erfindung wird weiter anhand eines bevorzugten Ausführungsbeispieles erläutert, welches schematisch in den Zeichnungen dargestellt ist. In den Zeichnungen zeigen:
- Fig. 1
- einen Teilquerschnitt einer Seitenansicht einer gattungsgemäßen Schlitzwandfräse; und
- Fig. 2
- einen Querschnitt einer vergrößerten Vorderansicht einer erfindungsgemäßen Schlitzwandfräse.
- Fig. 1
- a partial cross section of a side view of a generic trench cutter; and
- Fig. 2
- a cross-section of an enlarged front view of a trench cutter according to the invention.
Der grundsätzliche Aufbau einer Schlitzwandfräse 10' ist in
Um das Lagerschild 12 möglichst kompakt zu halten, befindet sich der nicht dargestellte Antrieb oberhalb des Lagerschildes 12 am Fräsrahmen 40. Das Antriebsritzel 17 ist dabei über eine erste drehfeste Verbindung 23 mit einer Antriebswelle 20' verbunden, welche sich parallel und zentrisch zum Antriebsritzel 17 nach oben zum Antrieb erstreckt. Am oberen Ende der Antriebswelle 20', welche flüssigkeitsdicht von einem Getriebeschild 21' umgeben ist, befindet sich eine zweite drehfeste Verbindung 24', welche in diesem Fall eine Feder-Nutverbindung ist. Diese dient zur Verbindung mit einem Kupplungselement 31, über welches das Drehmoment vom Antrieb an die Antriebswelle 20' übertragen wird. Am Fräsrahmen 40 ist die Antriebswelle 20' über ein Antriebswellenlager 22 drehbar gelagert, welche flüssigkeitsdicht in einem Lagergehäuse 30 angeordnet ist. Schließlich ist am Fräsrahmen 40 ein Halter 32 vorgesehen, über den die Schlitzwandfräse 10' transportiert werden kann.In order to keep the bearing
Die im Zusammenhang mit
Durch die Verteileinrichtung 24 wird das durch die Antriebswelle 20 beförderte Öl innerhalb der Verbindungshülse 46 radial verspritzt. Hierzu weist die Verteilungseinrichtung 24 eine Spritzkante auf. In der hier dargestellten Form ist die Vereilungseinrichtung 24 außerdem als Bauteil mit einer Außenbogenverzahnung ausgebildet. Durch das radiale Verspritzen der Schmiermittel werden die in der Verbindungshülse 46 befindlichen Kugellager 49 mit ausreichend Schmiermittel versorgt. Ebenso wird die Gleitringdichtung 50 durch das Verspritzen der Schmiermittel vor dem Austrocknen geschützt. Die Verbindungshülse 46 verbindet die Abtriebsmotorwelle 47 des Antriebes 48 mit der Antriebswelle 20. Sowohl der Antrieb 48 als auch die Verbindungshülse 46 befinden sich geschützt im Fräsrahmen 40. Überschüssiges Schmiermittel kann aus dem oberen Bereich über einen Ringkanal 27 und eine Rücklaufbohrung 28 nach unten zum Getriebe abgeführt und dort gekühlt werden.By the
Durch die erfindungsgemäße Schlitzwandfräse kann der Wartungsaufwand dieser erheblich verringert werden.Through the trench wall cutter invention, the maintenance of this can be significantly reduced.
Claims (7)
- Trench wall cutter comprising- a cutting frame (40),- a bearing bracket (12) located on a bottom side of the cutting frame (40),- at least one cutting wheel mounted in rotary manner on the bearing bracket (12),- a drive (48) fitted to the cutting frame (40) spaced from the bearing bracket (12),- a transmission (14) located in the bearing bracket (12), in which transmission oil is provided as lubricant for the transmission (14), and- a drive shaft (20) transmitting a torque of the drive (48) to the transmission (14) in the bearing bracket (12),wherein the drive shaft (20) is connected at its upper end with a driven motor shaft (47) of the drive (48) via a connecting sleeve (46),
characterized in- that the connecting sleeve (46) is rotationally mounted at its outside by at least one bearing (49) in the cutting frame (40),- that the drive shaft (20) has an external thread (44) adapted as a feed thread for feeding transmission oil of the transmission (14) in the bearing bracket (12) in the direction of the drive (48), and- that a distributing device (24) is provided at an upper end of the drive shaft (20) for a further distribution of the transmission oil as lubricant for the at least one bearing (49) of the connecting sleeve (46). - Trench wall cutter according to claim 1,
characterized in
that the distributing device (24) for the further distribution of the transmission oil has a tooth system. - Trench wall cutter according to claim 1 or 2,
characterized in
that a receptacle for transmission oil is provided, in which extends at least a lower end of the external thread (44) of the drive shaft (20). - Trench wall cutter according to one of the claims 1 to 3,
characterized in
that the at least one bearing (49) is a roll bearing, in particular a ball bearing. - Trench wall cutter according to one of the claims 1 to 4,
characterized in
that in an area of the driven motor shaft (47) of the drive (48) is located at least one seal (50), in particular a slip ring seal and that the drive shaft (20) is constructed for lubricating the at least one seal (50). - Trench wall cutter according to claim 5,
characterized in
that the at least one seal (50) is located at the outside of the connecting sleeve (46). - Trench wall cutter according to one of the claims 1 to 6,
characterized in
that in an area above the at least one bearing (49) a ring duct (27) is located, from which redundant transmission oil can be led to the transmission (14) via a return bore (28) in the bearing bracket (12).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04022096.4A EP1637794B1 (en) | 2004-09-16 | 2004-09-16 | Milling device for trench walls |
RU2005126843/03A RU2312186C2 (en) | 2004-09-16 | 2005-08-25 | Milling device for insulating wall erection in ground |
JP2005262023A JP4451829B2 (en) | 2004-09-16 | 2005-09-09 | Trench wall cutter |
KR1020050085128A KR100695804B1 (en) | 2004-09-16 | 2005-09-13 | Trench wall cutter |
US11/227,910 US20060053665A1 (en) | 2004-09-16 | 2005-09-16 | Trench wall cutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04022096.4A EP1637794B1 (en) | 2004-09-16 | 2004-09-16 | Milling device for trench walls |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1637794A1 EP1637794A1 (en) | 2006-03-22 |
EP1637794B1 true EP1637794B1 (en) | 2015-11-11 |
Family
ID=34926569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04022096.4A Expired - Lifetime EP1637794B1 (en) | 2004-09-16 | 2004-09-16 | Milling device for trench walls |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060053665A1 (en) |
EP (1) | EP1637794B1 (en) |
JP (1) | JP4451829B2 (en) |
KR (1) | KR100695804B1 (en) |
RU (1) | RU2312186C2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019111774A1 (en) * | 2019-03-25 | 2020-10-01 | Liebherr-Components Biberach Gmbh | Drive device for a trench wall cutter |
WO2020193096A1 (en) | 2019-03-25 | 2020-10-01 | Liebherr-Components Biberach Gmbh | Drive device for a diaphragm wall cutter |
EP3904603A1 (en) | 2020-04-29 | 2021-11-03 | BAUER Spezialtiefbau GmbH | Trench wall cutter |
EP4074898A1 (en) | 2021-04-12 | 2022-10-19 | BAUER Maschinen GmbH | Foundation slot cutter and method for changing the cutting width of the cutter |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008016673B4 (en) * | 2008-03-26 | 2014-05-15 | Allu Deutschland Gmbh | Device for milling and mixing of soils |
CN103770224B (en) * | 2014-01-29 | 2016-06-01 | 徐工集团工程机械股份有限公司 | The feeding device of a kind of two-wheel groove milling machine and two-wheel groove milling machine |
CN105328798B (en) | 2014-07-14 | 2018-05-01 | 徐工集团工程机械股份有限公司 | Power-equipment, groove milling machine actuating device and slotter |
DE202019100319U1 (en) * | 2019-01-21 | 2020-04-22 | Liebherr-Werk Nenzing Gmbh | Trench cutter |
DE202019102477U1 (en) * | 2019-02-27 | 2020-06-03 | Liebherr-Components Biberach Gmbh | Drive device for a trench cutter |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1604078A (en) * | 1924-05-07 | 1926-10-19 | Charles A Schneider | Centrifugal machine |
US1871429A (en) * | 1932-04-29 | 1932-08-09 | Ingersoll Rand Co | Oiling device |
US2320353A (en) * | 1941-08-04 | 1943-06-01 | Cincinnati Milling Machine Co | Power transmission mechanism |
DE1219310B (en) * | 1958-07-26 | 1966-06-16 | Ver Werkzeugmaschinenfabriken | Screw thread drive for machine tools, especially drilling and milling machines |
US3141354A (en) * | 1962-03-08 | 1964-07-21 | Gen Motors Corp | Transmission |
US3559312A (en) * | 1969-07-25 | 1971-02-02 | Westinghouse Air Brake Co | Drive train for absorbing highly variable shock loads |
US4764135A (en) * | 1987-06-17 | 1988-08-16 | Brunswick Corporation | Marine stern drive oil cooling and circulating as well as pumping system |
DE19652022C2 (en) * | 1996-12-13 | 2000-03-23 | Bauer Spezialtiefbau | Trench cutter |
SE521638C2 (en) * | 2001-04-23 | 2003-11-18 | Globe Invent Ab | Method for processing an object, machine and tool unit for performing the method |
US7178426B2 (en) * | 2004-09-23 | 2007-02-20 | Dana Corporation | Enhanced lubrication system for drive axle assemblies |
-
2004
- 2004-09-16 EP EP04022096.4A patent/EP1637794B1/en not_active Expired - Lifetime
-
2005
- 2005-08-25 RU RU2005126843/03A patent/RU2312186C2/en not_active IP Right Cessation
- 2005-09-09 JP JP2005262023A patent/JP4451829B2/en not_active Expired - Fee Related
- 2005-09-13 KR KR1020050085128A patent/KR100695804B1/en active IP Right Grant
- 2005-09-16 US US11/227,910 patent/US20060053665A1/en not_active Abandoned
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019111774A1 (en) * | 2019-03-25 | 2020-10-01 | Liebherr-Components Biberach Gmbh | Drive device for a trench wall cutter |
WO2020193096A1 (en) | 2019-03-25 | 2020-10-01 | Liebherr-Components Biberach Gmbh | Drive device for a diaphragm wall cutter |
EP3904603A1 (en) | 2020-04-29 | 2021-11-03 | BAUER Spezialtiefbau GmbH | Trench wall cutter |
WO2021219279A1 (en) | 2020-04-29 | 2021-11-04 | Bauer Spezialtiefbau Gmbh | Slurry wall excavator |
EP4074898A1 (en) | 2021-04-12 | 2022-10-19 | BAUER Maschinen GmbH | Foundation slot cutter and method for changing the cutting width of the cutter |
WO2022218719A1 (en) | 2021-04-12 | 2022-10-20 | Bauer Maschinen Gmbh | Slurry wall cutter and method for changing a cutting width of a slurry wall cutter |
Also Published As
Publication number | Publication date |
---|---|
JP2006083694A (en) | 2006-03-30 |
JP4451829B2 (en) | 2010-04-14 |
RU2005126843A (en) | 2007-02-27 |
RU2312186C2 (en) | 2007-12-10 |
US20060053665A1 (en) | 2006-03-16 |
EP1637794A1 (en) | 2006-03-22 |
KR20060051242A (en) | 2006-05-19 |
KR100695804B1 (en) | 2007-03-16 |
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