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EP2082098A2 - Excavation device - Google Patents

Excavation device

Info

Publication number
EP2082098A2
EP2082098A2 EP07816251A EP07816251A EP2082098A2 EP 2082098 A2 EP2082098 A2 EP 2082098A2 EP 07816251 A EP07816251 A EP 07816251A EP 07816251 A EP07816251 A EP 07816251A EP 2082098 A2 EP2082098 A2 EP 2082098A2
Authority
EP
European Patent Office
Prior art keywords
guide vanes
guide
conveyor belt
impeller
rotation
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.)
Granted
Application number
EP07816251A
Other languages
German (de)
French (fr)
Other versions
EP2082098B1 (en
Inventor
Heinz Jäger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SERSA MASCHINELLER GLEISBAU AG
Original Assignee
J Mueller Ag Maschineller Geleiseunterhalt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by J Mueller Ag Maschineller Geleiseunterhalt filed Critical J Mueller Ag Maschineller Geleiseunterhalt
Publication of EP2082098A2 publication Critical patent/EP2082098A2/en
Application granted granted Critical
Publication of EP2082098B1 publication Critical patent/EP2082098B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger

Definitions

  • the invention relates to a device for excavating and removing masses, in particular of soil material, with at least one lifting device rotatable about an axis of rotation and a longitudinal conveyor for the removal of excavated material.
  • DE-A-32 35 023 discloses an excavating device with a longitudinal conveyor provided for the removal of loose debris for the removal of tracks in mining.
  • the front end of the conveyor carries a transversely disposed to the longitudinal direction of the rotating roller.
  • the roller surface is provided with crushing tips, and within the roller, a drive motor is arranged.
  • the driven roller picks up loose debris and at the same time levels the ground over which the conveyor is fed. At the same time the debris is thrown on the conveyor.
  • WO-A-2006/074828 discloses a device for cleaning ballast of a track with a transverse chain strand running transversely to a machine longitudinal direction with a clearing chain. If the machine is traveling slowly, gravel below the track will be dug the clearing and fed to a cleaning system.
  • the invention has for its object to provide a device of the type mentioned, which has no exposed moving parts, such as chains or cups, and thus can be robustly built for crushing grosserer chunks.
  • the excavating device should also be suitable for excavating materials of all kinds and be used in the smallest space.
  • the excavating device comprises an impeller with a conically extending guide surface arranged rotationally symmetrically about the axis of rotation and guide flights projecting radially from the conical guide surface and forming an acute angle relative to the axis of rotation.
  • the tapered guide surface of the impeller with the tapered end adjacent to a conveyor belt and forms a drainage surface for excavated material.
  • the excavating device comprises two impellers with a conveyor belt arranged between them.
  • the guide vanes are preferably bounded by two mutually parallel lateral edges, and the width of the guide vanes corresponds substantially to the width of the conically extending guide surface.
  • the guide vanes are preferably so with respect to the axis of rotation twisted an angle that, seen in the running direction, the outer side edge precedes the inner lateral edge.
  • the outer lateral edge of the guide vanes expediently adjoins a stationary guide plate at least in an area below the conveyor belt.
  • the guideway ends with a lying parallel to the conveying plane of the conveyor belt upper edge above the conveyor belt.
  • a wing cover covering the guide vanes protrudes inwards from a peripheral edge of the guide plate.
  • the guide vanes are curved with respect to a cross-section perpendicular to the lateral edges, and the curved surface of the guide vanes points with the concave curvature in the direction of rotation of the impellers.
  • wing teeth protrude laterally from the guide vanes.
  • the impellers each associated with a single controllable motor.
  • FIG. 1 is an oblique view of an excavating device
  • FIG. 2 is an oblique view of a detail of FIG. 1 with the right impeller removed
  • FIG. 1 is an oblique view of an excavating device
  • FIG. 3 shows a vertical section through the axis of rotation of a part of the excavating device of FIG. 1, viewed in the conveying direction;
  • FIG. 4 shows the further simplified vertical section of FIG. 3 through the axis of rotation of a part of the excavating device of FIG. 1 with a view towards the conveying direction;
  • Fig. 5 is a side view of the arrangement of Fig. 4; Fig. 6-11 Material stratification after filling as a function of the direction of rotation;
  • An excavating machine 10 shown in FIG. 1 has two impellers 12, 14 arranged concentrically and at a distance from each other. Between the rotatable about a common axis of rotation y impellers 12, 14, a longitudinal conveyor is arranged with an endlessly circulating conveyor belt 18 with a lying at a right angle to the axis of rotation y, generally the working direction A of the excavating machine 10 corresponding conveying direction x.
  • the impellers 12, 14 and the conveyor belt 18 are mounted on a machine frame 16.
  • Each impeller 12, 14 has a central, rotationally symmetrical
  • the conical guide surface 20 tapers from the outer side of each impeller 12, 14 against the inner side adjacent to the conveyor belt 18.
  • the guide vanes 22 are rotated relative to the axis of rotation y at the angle such that, seen in the running direction u, the outer side edge 26 runs in front of the inner lateral edge 24.
  • the curved surface of the guide vanes 22 has in this case with the concave curvature u in the direction of rotation.
  • vane teeth 28 extend substantially tangentially from the curved surface of the vane 22 to the outside.
  • each impeller 12, 14 is covered by a festste-5 rising guide plate 30 with a circular peripheral edge 32 except for a lying above the conveyor belt 18 area.
  • the guide plate 30 projects beyond the conveyor belt 18
  • the gap between the guide plate 30 and the F ⁇ r- 0 derband 18 in the region of the edge 31 is covered by a strip-shaped, extending from the edge 31 to the underlying conveyor belt 18 cover plate 33.
  • a wing cover 34 in the form of a substantially the width of the guide vanes 22 corresponding band substantially radially outward.
  • the guide vanes 22 guide and press excavating material 41 against the guide plate 30.
  • the guide channel formed by the guide plate 30 and the wing cover 34 prevents the outflow material from flowing out in the ascending part of the impeller 12, 14.
  • In the area of this wing cover 34 forms between two successive guide vanes 22 delimited by the guide plate and the wing cover 34, only against the outside sen of the impeller 12, 14 open chamber 36, which moves in the direction of rotation of the impeller 12, 14 and at the end of the guide plate 30 above the conveyor belt 18 opens.
  • the conical guide surface 20 of the chamber 36 located above the conveyor belt 18 forms for the excavated material 41 a drainage surface on the conveyor belt 18, wherein the inner peripheral edge of the conical guide surface 20 adjacent to the lateral edge of the conveyor belt 18.
  • the two inclined planes that is, the orientation of the guide vanes 22 and the conical guide surface 20 suit, jointly support the material flow, so that even bulky or viscous material such as loam can flow out in a favored manner.
  • the guide vanes 22 may, as shown in Fig. 2, at their "free” .radial.End a substantially, perpendicular., Radial direction of the guide vanes 22 in the direction of the vane wheel 12, 14 have projecting wing portion 38 and are closed in this way. In the formation of the guide vanes 22 with a terminal projecting wing part 38 can be dispensed with the wing cover 34.
  • Each impeller 12, 14 is equipped with a motor 40 for generating the rotational movement about the rotation axis y.
  • the two motors 40 can be controlled independently of each other.
  • the guide channel formed by the wing cover 34 releases the guide vanes 22 above the conveyor belt 18, which has the following advantages:
  • the guide vanes 22 can automatically be cleaned with the impeller 12, 14 or manually when the impeller 12, 14, for example, from stubborn sticky material such as clay, sea chalk, etc. automatically
  • the impeller 12, 14 is, thanks to its continuous rotary motion, a very efficient conveyor for mixed excavated material such as e.g. Sand, gravel, stones, etc.
  • this excavation system is also very suitable for problematic excavated material, such as wet humus, clay, sea chalk, etc.
  • the impeller 12, 14 is very compact and without exposed, moving parts, such as chains, cups, etc. Thus, it can be built so robust that occurring larger brokers such as masonry, stones «etc. be crushed easily. If an object blocks the impeller 12, 14, an automatic pressure shut-off protects the device against deformations. If it is determined that, for example, a cable is caught and wound up, the rotary motion can be stopped immediately, and. the entanglement .. by changing, "the .. turning, sinns be corrected.
  • the two impellers 12, 14 are individually driven via a respective motor 40 and also individually controllable.
  • the wing teeth 28 mounted on the outer side edge 26 of the guide vanes 22 serve to loosen hard excavated material 41.
  • the working direction A can be changed (backward, pivoting). Likewise, adaptation to stratifications of the excavated material is possible.
  • Top closed guide vanes 22 with angled wing portion 38 instead of the wing cover 34 are particularly suitable for granular excavated material without bulky goods, such. Wood. - One in the excavation area continuous wing cover 34th
  • a guide plate 30 (FIG. 13), which passes through in the excavation area, is particularly suitable for bulky goods that can not be crushed, such as, for example, granite blocks and reinforced foundation residues.
  • a shortened guide plate 30 (Fig.14) is particularly suitable for shredded bulky goods, such as bricks. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)

Abstract

The invention relates to a device for excavating and transporting material, especially earth, said device comprising an excavation appliance that can be rotated about a rotational axis (y) in a rotational direction (u), and a longitudinal conveyor (18) for transporting the excavated material (41). The excavation appliance comprises an impeller (12, 14) having a conically extending guide surface (20) arranged around the rotational axis (y) in a rotationally symmetrical manner, and guide vanes (22) which radially protrude from the conical guide surface (20) and form an acute angle in relation to the rotational axis (y).

Description

AushTibvorrichtung AushTibvorrichtung
Technisches Gebiet der ErfindungTechnical field of the invention
Die Erfindung betrifft eine Vorrichtung zum Aushub und Abtransport von Massen, insbesondere von Bodenmaterial, mit wenigstens einem um eine Drehachse rotierbaren Aushubgerät und einem Längsförderer zum Abtransport von Aushubmaterial.The invention relates to a device for excavating and removing masses, in particular of soil material, with at least one lifting device rotatable about an axis of rotation and a longitudinal conveyor for the removal of excavated material.
Stand der TechnikState of the art
Aus CH-A-331 149 ist ein Gerät mit nach unten gerichteten, mit einem Rüttelgerät gekoppelten Schneiden zum Ausstechen eines von den Schneiden eingefassten Massequerschnitts zum Aushub und Verladen von Massen bekannt .From CH-A-331 149 a device with downwardly directed, coupled with a vibrator cutting edges for cutting a bordered by the cutting mass cross section for excavating and loading of masses is known.
DE-A-32 35 023 offenbart eine Aushubvorrichtung mit einem zum Abtransport von lockerem Schutt vorgesehenen Längsför- derer zum Streckenausbau im Bergbau. Das vordere Ende des Förderers trägt eine quer zu dessen Längsrichtung angeordnete rotierende Walze. Die Walzenoberfläche ist mit Brechspitzen versehen, und innerhalb der Walze ist ein Antriebsmotor angeordnet . Die angetriebene Walze nimmt losen Schutt auf und ebnet zugleich den Boden, über den der Förderer vorgeschoben wird. Gleichzeitig wird der Schutt auf den Förderer geworfen.DE-A-32 35 023 discloses an excavating device with a longitudinal conveyor provided for the removal of loose debris for the removal of tracks in mining. The front end of the conveyor carries a transversely disposed to the longitudinal direction of the rotating roller. The roller surface is provided with crushing tips, and within the roller, a drive motor is arranged. The driven roller picks up loose debris and at the same time levels the ground over which the conveyor is fed. At the same time the debris is thrown on the conveyor.
Aus WO-A-2006/074828 ist eine Vorrichtung zum Reinigen von Schotter eines Gleises mit einem quer zu einer Maschinenlängsrichtung verlaufenden Kettenquertrum mit einer Räumkette bekannt . Bei langsamer Vorfahrt der Maschine wird Schotter unterhalb des Gleises mittels der endlos umlaufen- den Räumkette abgegraben und einer Reinigungsanlage zugeführt .WO-A-2006/074828 discloses a device for cleaning ballast of a track with a transverse chain strand running transversely to a machine longitudinal direction with a clearing chain. If the machine is traveling slowly, gravel below the track will be dug the clearing and fed to a cleaning system.
Darstellung der Erfindung Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die keine exponierten beweglichen Teile, wie zum Beispiel Ketten oder Becher, aufweist und somit zur Zerkleinerung grosserer Brocken robust gebaut werden kann. Die Aushubvorrichtung soll zudem für Aushubmaterialien aller Art geeignet und auf kleinstem Raum einsetzbar sein.The invention has for its object to provide a device of the type mentioned, which has no exposed moving parts, such as chains or cups, and thus can be robustly built for crushing grosserer chunks. The excavating device should also be suitable for excavating materials of all kinds and be used in the smallest space.
Zur erfindungsgemässen Lösung der Aufgabe führt, dass das Aushubgerät ein Flügelrad mit einer rotationssymmetrisch um die Drehachse angeordneten, konisch verlaufenden Leitfläche und von der konischen Leitfläche radial abragenden und gegenüber der Drehachse einen spitzen Winkel bildenden Leit- flügein umfasst.To achieve the object according to the invention, the excavating device comprises an impeller with a conically extending guide surface arranged rotationally symmetrically about the axis of rotation and guide flights projecting radially from the conical guide surface and forming an acute angle relative to the axis of rotation.
Bei einer bevorzugten Ausführung grenzt die konisch verlaufende Leitfläche des Flügelrades mit dem verjüngten Ende an ein Förderband an und bildet eine Ablauffläche für Aushubmaterial .In a preferred embodiment, the tapered guide surface of the impeller with the tapered end adjacent to a conveyor belt and forms a drainage surface for excavated material.
Zweckmässigerweise umfasst das Aushubgerät zwei Flügelräder mit einem zwischen diesen angeordneten Förderband.Expediently, the excavating device comprises two impellers with a conveyor belt arranged between them.
Die Leitflügel sind bevorzugt von zwei parallel zueinander stehenden seitlichen Rändern begrenzt, und die Breite der Leitflügel entspricht im wesentlichen der Breite der konisch verlaufenden Leitfläche.The guide vanes are preferably bounded by two mutually parallel lateral edges, and the width of the guide vanes corresponds substantially to the width of the conically extending guide surface.
Die Leitflügel sind bevorzugt gegenüber der Drehachse so um einen Winkel verdreht, dass, in Laufrichtung gesehen, der äussere seitliche Rand dem inneren seitlichen Rand vorläuft .The guide vanes are preferably so with respect to the axis of rotation twisted an angle that, seen in the running direction, the outer side edge precedes the inner lateral edge.
Zweckmässigerweise grenzt der äussere seitliche Rand der Leitflügel zumindest in einem Bereich unterhalb des Förderbandes an ein feststehendes Leitschild an.The outer lateral edge of the guide vanes expediently adjoins a stationary guide plate at least in an area below the conveyor belt.
Bei einer bevorzugten Ausführung endet das Leitschild mit einer parallel zur Förderebene des Förderbandes liegenden oberen Kante oberhalb des Förderbandes .In a preferred embodiment, the guideway ends with a lying parallel to the conveying plane of the conveyor belt upper edge above the conveyor belt.
Zweckmässigerweise ragt von einem Umfangsrand des Leit- schildes eine die Leitflügel überdeckende Flügelabdeckung nach innen ab.Expediently, a wing cover covering the guide vanes protrudes inwards from a peripheral edge of the guide plate.
Bevorzugt sind die Leitflügel bezüglich eines senkrecht zu den seitlichen Rändern liegenden Querschnitts gekrümmt, und die gekrümmte Fläche der Leitflügel weist mit der konkaven Krümmung in die Drehrichtung der Flügelräder.Preferably, the guide vanes are curved with respect to a cross-section perpendicular to the lateral edges, and the curved surface of the guide vanes points with the concave curvature in the direction of rotation of the impellers.
Bevorzugt ragen von den Leitflügeln seitlich Flügelzähne nach aussen ab.Preferably, wing teeth protrude laterally from the guide vanes.
Zweckmässigerweise ist den Flügelrädern je ein einzeln steuerbarer Motor zugeordnet .Conveniently, the impellers each associated with a single controllable motor.
Kurze Beschreibung der Zeichnung- ■ . .. Brief description of the drawing . , ,
Weitere Vorteile Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugterFurther advantages Features and details of the invention will become more apparent from the following description
Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt schematisch in Fig. 1 eine Schrägsicht auf eine Aushubvorrichtung; Fig. 2 eine Schrägsicht auf ein Detail von Fig. 1 mit entferntem rechtem Flügelrad;Embodiments and with reference to the drawing; this shows schematically in Fig. 1 is an oblique view of an excavating device; FIG. 2 is an oblique view of a detail of FIG. 1 with the right impeller removed; FIG.
Fig. 3 einen Vertikalschnitt durch die Drehachse eines Teils der Aushubvorrichtung von Fig. 1 mit Blick in Förderrichtung;FIG. 3 shows a vertical section through the axis of rotation of a part of the excavating device of FIG. 1, viewed in the conveying direction; FIG.
Fig. 4 den weiter vereinfachten Vertikalschnitt von Fig.3 durch die Drehachse eines Teils der Aushubvorrichtung von Fig. 1 mit Blick ent- gegen der Förderrichtung;FIG. 4 shows the further simplified vertical section of FIG. 3 through the axis of rotation of a part of the excavating device of FIG. 1 with a view towards the conveying direction; FIG.
Fig. 5 die Seitenansicht der Anordnung von Fig. 4; Fig. 6-11 Materialschichtung nach Befüllung in Abhängigkeit von der Drehrichtung;Fig. 5 is a side view of the arrangement of Fig. 4; Fig. 6-11 Material stratification after filling as a function of the direction of rotation;
Fig .12-14 verschiedene Flügelrad-Ausführungen.Fig. 12-14 different impeller designs.
Beschreibung von AusführungsbeispielenDescription of exemplary embodiments
Eine in Fig. 1 dargestellte Aushubmaschine 10 weist zwei konzentrisch und in Abstand zu einander angeordnete Flügelräder 12, 14 auf. Zwischen den um eine gemeinsame Drehachse y rotierbaren Flügelrädern 12, 14 ist ein Längsförderer mit einem endlos umlaufenden Förderband 18 mit einer in einem rechten Winkel zur Drehachse y liegenden, im allgemeinen der Arbeitsrichtung A der Aushubmaschine 10 entsprechenden Förderrichtung x angeordnet. Die Flügelräder 12, 14 und das Förderband 18 sind auf einem Maschinenrahmen 16 montiert.An excavating machine 10 shown in FIG. 1 has two impellers 12, 14 arranged concentrically and at a distance from each other. Between the rotatable about a common axis of rotation y impellers 12, 14, a longitudinal conveyor is arranged with an endlessly circulating conveyor belt 18 with a lying at a right angle to the axis of rotation y, generally the working direction A of the excavating machine 10 corresponding conveying direction x. The impellers 12, 14 and the conveyor belt 18 are mounted on a machine frame 16.
Jedes Flügelrad 12, 14 weist eine zentrale, rotationssym-Each impeller 12, 14 has a central, rotationally symmetrical
- metrisch -zur Drehachse y angeordnete und mit -dieser einen'- metrically arranged to the axis of rotation y and with this one '
Winkel von etwa 45° einschliessende konische Leitfläche 20 auf. Von der konischen Leitfläche 20 ragen gleichmässig ü- ber den Umfang verteilte Leitflügel 22 radial nach aussen ab. Die Projektion der Leitflügel 22 in Radialrichtung schneidet dabei die Drehachse y in einem spitzen Winkel von etwa 45°, d.h., die Fläche der Leitflügel 22 ist gegenüber einer von der Drehachse y ausgehenden Radialebene um einen Winkel von etwa 45° verdreht. Die Leitflügel 22 erstrecken sich über die gesamte Breite der konischen Leitfläche 20 und sind durch zwei parallel zueinander und rechtwinklig zur Drehachse y stehende seitliche Flügelränder 24, 26 begrenzt . Bezüglich eines senkrecht zu den seitlichen Rändern 24, 26 verlaufenden Querschnitts sind die Leitflügel 22 gekrümmt ausgebildet. 0Angle of about 45 ° enclosing conical guide surface 20. From the conical guide surface 20 projecting uniformly distributed over the circumference guide vanes 22 protrude radially outward. The projection of the guide vanes 22 in the radial direction thereby intersects the axis of rotation y at an acute angle of about 45 °, that is, the surface of the guide vanes 22 is rotated relative to a radian axis of the y outgoing radial plane by an angle of about 45 °. The guide vanes 22 extend over the entire width of the conical guide surface 20 and are bounded by two side wing edges 24, 26 which are parallel to one another and perpendicular to the axis of rotation y. With respect to a perpendicular to the lateral edges 24, 26 extending cross section, the guide vanes 22 are formed curved. 0
Die konische Leitfläche 20 verjüngt sich von der Aussensei- te jedes Flügelrades 12, 14 gegen die dem Förderband 18 benachbart liegende Innenseite. 5 Die Leitflügel 22 sind gegenüber der Drehachse y so um den Winkel verdreht, dass, in Laufrichtung u gesehen, der äus- sere seitliche Rand 26 dem inneren seitlichen Rand 24 vorläuft. Die gekrümmte Fläche der Leitflügel 22 weist dabei mit der konkaven Krümmung in die Drehrichtung u. Vom äusse- 0 ren seitlichen Rand der Leitflügel 22 ragen Flügelzähne 28 im Wesentlichen tangential von der gekrümmten Fläche der Leitflügel 22 nach aussen ab.The conical guide surface 20 tapers from the outer side of each impeller 12, 14 against the inner side adjacent to the conveyor belt 18. The guide vanes 22 are rotated relative to the axis of rotation y at the angle such that, seen in the running direction u, the outer side edge 26 runs in front of the inner lateral edge 24. The curved surface of the guide vanes 22 has in this case with the concave curvature u in the direction of rotation. From the outer side edge of the guide vanes 22, vane teeth 28 extend substantially tangentially from the curved surface of the vane 22 to the outside.
Innenseitig ist jedes Flügelrad 12, 14 von einem festste-5 henden Leitschild 30 mit kreisförmigem Umfangsrand 32 bis auf einen oberhalb des Förderbandes 18 liegenden Bereich abgedeckt. Das Leitschild 30 überragt das Förderband 18 mitOn the inside, each impeller 12, 14 is covered by a festste-5 rising guide plate 30 with a circular peripheral edge 32 except for a lying above the conveyor belt 18 area. The guide plate 30 projects beyond the conveyor belt 18
••■• -einer parallel zum Förderband 18 liegenden Kante 31 um ein••• • - an edge 31 parallel to the conveyor belt 18
Mass e. Der Spalt zwischen dem Leitschild 30 und dem Fδr- 0 derband 18 im Bereich der Kante 31 ist von einem streifenförmigen, von der Kante 31 zum tieferliegenden Förderband 18 verlaufenden Abdeckblech 33 überdeckt. In einem weiteren Bereich zwischen, etwa dem tiefsten Punkt S .des Flügelrades, 12, 14 und einem Punkt T oberhalb des Förderbandes 18 ragt vom Umfangsrand 32 des Leitschildes 30 eine Flügelabdeckung 34 in Form eines etwa der Breite der Leitflügel 22 entsprechenden Bandes im wesentlichen radial nach aussen ab.Dimensions. The gap between the guide plate 30 and the Fδr- 0 derband 18 in the region of the edge 31 is covered by a strip-shaped, extending from the edge 31 to the underlying conveyor belt 18 cover plate 33. In another area between, say, the lowest point S of the impeller, 12, 14 and a point T above the conveyor belt 18 protrudes from the peripheral edge 32 of the guide plate 30, a wing cover 34 in the form of a substantially the width of the guide vanes 22 corresponding band substantially radially outward.
Wie aus Fig. 3 ersichtlich, leiten und pressen die Leitflügel 22 Aushubmaterial 41 gegen das Leitschild 30. Der durch das Leitschild 30 und die Flügelabdeckung 34 gebildete Führungskanal verhindert das Ausfliessen des Aushubmaterials im aufsteigenden Teil des Flügelrades 12, 14. Im Bereich dieser Flügelabdeckung 34 bildet sich zwischen zwei aufeinander folgenden Leitflügeln 22 eine durch das Leitschild und die Flügelabdeckung 34 abgegrenzte, nur gegen die Aus- senseite des Flügelrades 12, 14 offene Kammer 36, die sich in Drehrichtung des Flügelrades 12, 14 bewegt und am Ende des Leitschildes 30 oberhalb des Förderbandes 18 sich öffnet. Die konische Leitfläche 20 der sich oberhalb des Förderbandes 18 befindenden Kammer 36 bildet für das Aushubmaterial 41 eine Ablauffläche auf das Förderband 18, wobei der innere Umfangsrand der konischen Leitfläche 20 an den seitlichen Rand des Förderbandes 18 angrenzt. Zusätzlich erfolgt eine erzwungene Verschiebung des Aushubmaterials 41 in Richtung auf das Förderband 18 durch den zur Förderrichtung x quer stehenden Leitflügel 22.As can be seen in FIG. 3, the guide vanes 22 guide and press excavating material 41 against the guide plate 30. The guide channel formed by the guide plate 30 and the wing cover 34 prevents the outflow material from flowing out in the ascending part of the impeller 12, 14. In the area of this wing cover 34 forms between two successive guide vanes 22 delimited by the guide plate and the wing cover 34, only against the outside sen of the impeller 12, 14 open chamber 36, which moves in the direction of rotation of the impeller 12, 14 and at the end of the guide plate 30 above the conveyor belt 18 opens. The conical guide surface 20 of the chamber 36 located above the conveyor belt 18 forms for the excavated material 41 a drainage surface on the conveyor belt 18, wherein the inner peripheral edge of the conical guide surface 20 adjacent to the lateral edge of the conveyor belt 18. In addition, there is a forced displacement of the excavated material 41 in the direction of the conveyor belt 18 through the transverse to the conveying direction x guide vanes 22nd
Die beiden schiefen Ebenen, d.h., die Ausrichtung der Leitflügel 22 und der Anzug der konischen Leitfläche 20, unterstützen gemeinsam den Materialfluss, so dass auch- sperriges oder zähfliessendes Material wie Lehm begünstigt ausflies- sen kann.The two inclined planes, that is, the orientation of the guide vanes 22 and the conical guide surface 20 suit, jointly support the material flow, so that even bulky or viscous material such as loam can flow out in a favored manner.
Die Leitflügel 22 können, wie in Fig. 2 gezeigt, an ihrem ,,freien„.radialen.Ende einen im wesentlichen, rechtwinklig.,.zur radialen Richtung der Leitflügel 22 in Laufrichtung u des Flügelrades 12, 14 abragendes Flügelteil 38 aufweisen und sind auf diese Weise geschlossen. Bei der Ausbildung der Leitflügel 22 mit einem endständig abragenden Flügelteil 38 kann auf die Flügelabdeckung 34 verzichtet werden.The guide vanes 22 may, as shown in Fig. 2, at their "free" .radial.End a substantially, perpendicular., Radial direction of the guide vanes 22 in the direction of the vane wheel 12, 14 have projecting wing portion 38 and are closed in this way. In the formation of the guide vanes 22 with a terminal projecting wing part 38 can be dispensed with the wing cover 34.
Jedes Flügelrad 12, 14 ist mit einem Motor 40 zur Erzeugung der Drehbewegung um die Drehachse y ausgestattet. Die beiden Motoren 40 können unabhängig von einander gesteuert werden.Each impeller 12, 14 is equipped with a motor 40 for generating the rotational movement about the rotation axis y. The two motors 40 can be controlled independently of each other.
Bei besonderer Schichtung eines Bodenmaterials 41 mit beispielsweise einem Untergrund aus Lehm 42 und einer darüber liegenden Schicht aus Schotter 44 kann, wie aus Fig. 6 - 11 ersichtlich, durch eine Änderung der Drehrichtung u der Flügelräder 12, 14 bei gleichzeitigem Tauschen der beiden Flügelräder 12, 14 die Befüllung der Leitflügel 22 der Schichtung des Aushubmaterials angepasst werden.In particular stratification of a soil material 41 with, for example, a substrate of clay 42 and an overlying layer of ballast 44, as shown in Fig. 6 - 11, by changing the direction of rotation u of the vanes 12, 14 with simultaneous exchange of the two vanes 12th , 14 the filling of the guide vanes 22 of the stratification of the excavated material to be adjusted.
Mit der dargestellten Drehrichtung besteht-, wie in den Fig. 6 - 8 gezeigt, die Gefahr, dass der zähfliessende Lehm 42 nur verzögert ausfliesst. Die Entleerungszeit, bzw. die Zeit, während der der Leitflügel 22 am offenen Leitschild 30 vorbeifährt, reicht deshalb für eine vollständiges Aus- fHessen des Lehms 42 nicht aus. Die an den Leitflügeln 22 haftende Restlehmschicht wird immer dicker, verkleinert das Füllvolumen und reduziert die Aushubleistung.With the illustrated direction of rotation exists, as shown in FIGS. 6-8, the risk that the viscous clay 42 flows only delayed. The emptying time, or the time during which the guide vanes 22 passes by the open guide plate 30, is therefore not sufficient for complete removal of the clay 42. The adhering to the guide vanes 22 residual clay layer is getting thicker, reduces the filling volume and reduces the excavation.
Bei der in den Fig. 9 - 11 gezeigten Anordnung mit umge- kehrter Drehrichtung begünstigen die schweren, lockeren Schottersteine 44 den Fluss des Lehms 42 und haben zusätzlich eine Reinigungswirkung auf die Flügelräder 12, 14. Die Drehxichtung u im Gegenuhrzeigersinn, ist ..also,.bei solchen Verhältnissen angezeigt .When in the Fig. 9 - 11 shown arrangement with the reverse rotational direction of the heavy, loose gravel stones 44 promote the flow of clay 42 and also have a cleaning effect on the impellers 12, 14. The Drehxichtung u counterclockwise is ..so ,.in such Proportions.
Der durch die Flügelabdeckung 34 gebildete Führungskanal gibt die Leitflügel 22 oberhalb des Förderbandes 18 frei, was folgende Vorteile hat:The guide channel formed by the wing cover 34 releases the guide vanes 22 above the conveyor belt 18, which has the following advantages:
- Sperriges Material wie Holz, Seile, Kabel usw., das sich in den Leitflügeln 22 verfangen hat, kann nach dem Stoppen des Flügelrades 12, 14 problemlos entfernt werden.- Bulky material such as wood, ropes, cables, etc., which has caught in the guide vanes 22 can be easily removed after stopping the impeller 12, 14.
- Die Leitflügel 22 können automatisch bei laufendem Flügelrad 12, 14 oder manuell bei stehendem Flügelrad 12, 14 beispielsweise von hartnäckig klebrigem Material wie Lehm, Seekreide usw. gereinigt werden- The guide vanes 22 can automatically be cleaned with the impeller 12, 14 or manually when the impeller 12, 14, for example, from stubborn sticky material such as clay, sea chalk, etc. automatically
Das Flügelrad 12, 14 ist dank seiner kontinuierlichen Drehbewegung eine sehr effiziente Fördereinrichtung für gemischtes Aushubgut wie z.B. Sand, Schotter, Steine usw.The impeller 12, 14 is, thanks to its continuous rotary motion, a very efficient conveyor for mixed excavated material such as e.g. Sand, gravel, stones, etc.
Weil es keine permanente geschlossene Hohlräume gibt, wie z.B. Becher mit Boden, ist dieses Aushubsystem ebenfalls sehr geeignet für problematisches Aushubgut, wie nasser Humus, Lehm, Seekreide usw.Because there are no permanent closed cavities, such as Cup with bottom, this excavation system is also very suitable for problematic excavated material, such as wet humus, clay, sea chalk, etc.
Das Flügelrad 12, 14 ist sehr kompakt und ohne exponierte, bewegliche Teile, wie z.B. Ketten, Becher usw. Dadurch kann es so robust gebaut werden, dass vorkommende grossere Broker wie Mauerwerk, Steine «usw. problemlos zerkleinert werden. Blockiert ein Gegenstand das Flügelrad 12, 14, so schützt eine automatische Druckabschaltung die Einrichtung vor Deformationen. Wird festgestellt, dass z.B. ein Kabel erfasst und aufgewickelt wird, so kann die Drehbewegung sofort gestoppt, und. die Verwicklung ..durch -Ändern, „des ..Dreh-, sinns behoben werden. Die beiden Flügelräder 12, 14 sind einzeln über je einen Motor 40 angetrieben und auch einzeln steuerbar.The impeller 12, 14 is very compact and without exposed, moving parts, such as chains, cups, etc. Thus, it can be built so robust that occurring larger brokers such as masonry, stones «etc. be crushed easily. If an object blocks the impeller 12, 14, an automatic pressure shut-off protects the device against deformations. If it is determined that, for example, a cable is caught and wound up, the rotary motion can be stopped immediately, and. the entanglement .. by changing, "the .. turning, sinns be corrected. The two impellers 12, 14 are individually driven via a respective motor 40 and also individually controllable.
Die am äusseren seitlichen Rand 26 der Leitflügel 22 montierten Flügelzähne 28 dienen zur Lockerung von hartem Aushubmaterial 41.The wing teeth 28 mounted on the outer side edge 26 of the guide vanes 22 serve to loosen hard excavated material 41.
Je nach Anwendungsbereich gibt es für das Flügelrad 12, 14 verschiedene Optimierungsvarianten:Depending on the field of application, there are different optimization variants for the impeller 12, 14:
- Bei Änderung der Drehrichtung u kann die Arbeitsrichtung A geändert werden (rückwärts, schwenken) . Ebenso ist eine Anpassung an Schichtungen des Aushubmaterials möglich.- When changing the direction of rotation u, the working direction A can be changed (backward, pivoting). Likewise, adaptation to stratifications of the excavated material is possible.
- Oben geschlossene Leitflügel 22 mit abgewinkeltem Flügelteil 38 anstelle der Flügelabdeckung 34 sind besonders geeignet für körniges Aushubgut ohne Sperrgut, wie z.B. Holz. - Eine im Aushubbereich durchgehende Flügelabdeckung 34- Top closed guide vanes 22 with angled wing portion 38 instead of the wing cover 34 are particularly suitable for granular excavated material without bulky goods, such. Wood. - One in the excavation area continuous wing cover 34th
(Fig. 12) ist besonders geeignet für problematisches(Figure 12) is particularly suitable for problematic
Aushubgut, wie grosse Steine und Holz. Sperrgut wird ausgeschieden. Diese Anordnung funktioniert beimExcavated material, such as big stones and wood. Bulky goods are eliminated. This arrangement works when
Schwenken, nicht jedoch bei Vorwärts- und Rückwärts- fahrt.Pan, but not in forward and reverse.
Ein im Aushubbereich durchgehendes Leitschild 30 (Fig.13) ist besonders geeignet für Sperrgut, das nicht zerkleinert werden kann,- wie z.B. • Granitklötze und armierte Fundamentrückstände. - Ein gekürztes Leitschild 30 (Fig.14) ist besonders geeignet für zerkleinerbares Sperrgut, wie z.B. Backsteine. BezugszeichenlisteA guide plate 30 (FIG. 13), which passes through in the excavation area, is particularly suitable for bulky goods that can not be crushed, such as, for example, granite blocks and reinforced foundation residues. - A shortened guide plate 30 (Fig.14) is particularly suitable for shredded bulky goods, such as bricks. LIST OF REFERENCE NUMBERS
10 Aushubmaschine10 excavating machine
12 erstes Flügelrad12 first impeller
14 zweites Flügelrad14 second impeller
16 Maschinenrahmen16 machine frame
18 Förderband18 conveyor belt
20 konische Leitfläche20 conical guide surface
22 Leitflügel22 guide vanes
24 innerer seitlicher Rand von 2224 inner lateral edge of 22
26 äusserer seitlicher Rand von 2226 outer side edge of 22
28 Flügelzahne28 winged teeth
30 Leitschild30 guideline
31 obere Kante von 3031 upper edge of 30
32 Umfangsrand von 3032 peripheral edge of 30
33 Abdeckblech33 cover plate
34 Flügelabdeckung34 wing cover
36 Kammer36 chamber
38 Flügelteil38 wing part
40 Motor40 engine
41 Aushubmaterial41 excavated material
42 Lehm42 clay
44 Schotter44 gravel
A Arbeitsrichtung von 10A working direction of 10
X Förderrichtung von 18 y Drehachse von 12, 14X conveying direction of 18 y axis of rotation of 12, 14th
U Drehrichtung von 12, 14 e Abstand 18 - 31U direction of rotation 12, 14 e distance 18 - 31
S unterer Punkt von 34S lower point of 34
T oberer Punkt von 34 T upper point of 34

Claims

Patentansprüche claims
1. Vorrichtung zum Aushub und Abtransport von Massen, insbesondere von Bodenmaterial, mit wenigstens einem um eine Drehachse (y) in einer Drehrichtung (u) rotierbaren Aushubgerät (12, 14) und einem Längsförderer (18) zum Abtransport von Aushubmaterial (41) , .1. Apparatus for excavating and removing masses, in particular of soil material, comprising at least one excavating device (12, 14) rotatable about a rotation axis (y) in a rotational direction (u) and a longitudinal conveyor (18) for removing excavated material (41), ,
dadurch gekennzeichnet, dasscharacterized in that
das Aushubgerät ein Flügelrad (12, 14) mit einer rotationssymmetrisch um die Drehachse (y) angeordneten, konisch verlaufenden Leitfläche (20) und von der konischen Leitfläche (20) radial abragenden und gegenüber der Drehachse (y) einen spitzen Winkel bildenden Leit- flügein (22) umfasst .the excavating device comprises an impeller (12, 14) with a conically extending guide surface (20) arranged rotationally symmetrically about the axis of rotation (y) and radially projecting from the conical guide surface (20) and forming an acute angle with respect to the axis of rotation (y) (22).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die konisch verlaufende Leitfläche (20) des Flügelrades (12, 14) mit dem verjüngten Ende an ein Förderband (18) angrenzt und eine Ablauffläche für Aushubmaterial (41) bildet.2. Apparatus according to claim 1, characterized in that the conically extending guide surface (20) of the impeller (12, 14) with the tapered end of a conveyor belt (18) adjacent and forms a drainage surface for excavated material (41).
3. Vorrichtung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass das Aushubgerät zwei Flügelräder (12, 14) aufweist mit einem zwischen diesen angeordneten Förderband (18) umfasst.3. Apparatus according to claim 1 or 2, characterized in that the excavating device comprises two impellers (12, 14) with a conveyor belt arranged between them (18).
4. Vorrichtung nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, dass die Leitflügel (22) von zwei parallel zueinander stehenden seitlichen Rändern (24, 26) begrenzt sind und die Breite der Leitflügel (22) im wesentlichen der Breite der konisch verlaufenden Leitflä- che (20) entspricht.4. Device according to one of claims 1 to 3, characterized in that the guide vanes (22) of two mutually parallel lateral edges (24, 26) are limited and the width of the guide vanes (22) substantially the width of the conically extending Leitflä - (20).
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Leitflügel (22) gegenüber der Drehachse (y) so um einen Winkel verdreht ist, dass, in Laufrichtung (u) gesehen, der äussere seitliche Rand (26) dem inneren seitlichen Rand (24) vorläuft.5. The device according to claim 4, characterized in that the guide vanes (22) relative to the axis of rotation (y) is rotated by an angle that, seen in the running direction (u), the outer lateral edge (26) the inner lateral edge ( 24).
6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass der äussere seitliche Rand (26) der Leitflügel (22) zumindest in einem Bereich unterhalb des Förderbandes (18) an ein feststehendes Leitschild (30) angrenzt.6. Device according to one of claims 2 to 5, characterized in that the outer lateral edge (26) of the guide vanes (22) at least in an area below the conveyor belt (18) adjacent to a fixed guide plate (30).
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass das Leitschild (30) mit einer parallel zur Förderebene des Förderbandes (18) liegenden oberen Kante (31) um ein Mass (e) oberhalb des Förderbandes (18) endet und sich ein streifenförmiges Abdeckblech (33) von der Kante (31) zum tiefer liegenden Förderband (18) erstreckt .7. The device according to claim 6, characterized in that the guide plate (30) with a parallel to the conveying plane of the conveyor belt (18) lying upper edge (31) by a Mass (e) above the conveyor belt (18) ends and a strip-shaped cover plate (33) extends from the edge (31) to the lower conveyor belt (18).
8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass von einem ümfangsrand (32) des Leit- schildes (30) eine die Leitflügel (22) überdeckende Flügelabdeckung (34) nach innen abragt.8. The device according to claim 6 or 7, characterized in that from a ümfangsrand (32) of the guide plate (30) a the guide vanes (22) overlapping wing cover (34) projects inwardly.
9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Leitflügel (22) bezüglich eines senkrecht zu den seitlichen Rändern (24, 26) liegenden Querschnitts gekrümmt sind und die gekrümmte Fläche der Leitflügel (22) mit der konkaven Krümmung in die Drehriehtung (u) der Flügelräder (12, -14) 'weist. 9. Device according to one of claims 1 to 8, characterized in that the guide vanes (22) are curved with respect to a perpendicular to the lateral edges (24, 26) lying cross-section and the curved surface of the guide vanes (22) with the concave curvature in the Drehriehtung (u) of the impellers (12, -14) 'has.
10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Leitflügel (22) an ihrem freien radialen Ende ein im wesentlichen rechtwinklig zur radialen Richtung der Leitflügel (22) in Laufrichtung (u) des Flügelrades (12, 14) abragendes Flügelteil (38) aufweisen.10. Device according to one of claims 1 to 9, characterized in that the guide vanes (22) at its free radial end a substantially perpendicular to the radial direction of the guide vanes (22) in the running direction (u) of the impeller (12, 14) projecting Have wing part (38).
11. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass von den Leitflügeln (22) seitlich Flügelzahne (28) nach aussen abragen.11. Device according to one of claims 1 to 10, characterized in that of the guide vanes (22) laterally wing teeth (28) protrude outwards.
12. Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass den Flügelrädern (12, 14) je ein einzeln steuerbarer Motor (40) zugeordnet ist. 12. Device according to one of claims 1 to 11, characterized in that the impellers (12, 14) each associated with a single controllable motor (40).
EP07816251.8A 2006-11-23 2007-11-13 Excavation device Not-in-force EP2082098B1 (en)

Applications Claiming Priority (2)

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CH18862006 2006-11-23
PCT/CH2007/000568 WO2008061383A2 (en) 2006-11-23 2007-11-13 Excavation device

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EP (1) EP2082098B1 (en)
JP (1) JP5307722B2 (en)
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US20100024256A1 (en) 2010-02-04
WO2008061383A3 (en) 2008-10-02
AU2007324266B2 (en) 2013-06-06
US7921581B2 (en) 2011-04-12
WO2008061383A2 (en) 2008-05-29
JP2010510415A (en) 2010-04-02
CA2666151C (en) 2015-04-21
CA2666151A1 (en) 2008-05-29
JP5307722B2 (en) 2013-10-02
NO20091474L (en) 2009-07-17
EP2082098B1 (en) 2018-10-31
AU2007324266A1 (en) 2008-05-29

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