EP2113611B1 - Fold-away tooth with positioning claw for a dozer assembly - Google Patents

Fold-away tooth with positioning claw for a dozer assembly Download PDF

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Publication number
EP2113611B1
EP2113611B1 EP09002916.6A EP09002916A EP2113611B1 EP 2113611 B1 EP2113611 B1 EP 2113611B1 EP 09002916 A EP09002916 A EP 09002916A EP 2113611 B1 EP2113611 B1 EP 2113611B1
Authority
EP
European Patent Office
Prior art keywords
ripper tooth
ripper
tooth
dozer
swing
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.)
Not-in-force
Application number
EP09002916.6A
Other languages
German (de)
French (fr)
Other versions
EP2113611A1 (en
Inventor
Ralf Bruhn
Broder Lüers
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.)
Rheinmetall Landsysteme GmbH
Original Assignee
Rheinmetall Landsysteme GmbH
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 Rheinmetall Landsysteme GmbH filed Critical Rheinmetall Landsysteme GmbH
Publication of EP2113611A1 publication Critical patent/EP2113611A1/en
Application granted granted Critical
Publication of EP2113611B1 publication Critical patent/EP2113611B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/815—Blades; Levelling or scarifying tools
    • E02F3/8155—Blades; Levelling or scarifying tools provided with movable parts, e.g. cutting discs, vibrating teeth or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/32—Rippers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape

Definitions

  • a combined tractor-mountable bulldozer and a ripper are available.
  • This rig features a dozer bucket frame and multiple foldable teeth, each with an abutment to hold the teeth in an operative position.
  • the US 2,996,818 A describes a foldable fang that can be brought over a chain in a raised position when not in use.
  • Known wheel or tracked vehicles with externally adapted Räumschaufelanlagen include mountain and / or Pionierpanzer, which are designed to overcome and eliminate obstacles.
  • fixed, hydraulically actuated or hinged free-hanging fangs are usually used. If necessary, these are manually removed from the lock by the crew and folded down. When tearing the soil, these teeth stand up. Due to your Elnbau the fangs are used at a Dozerstrom when reversing. When driving forward or when broaching, the fangs automatically fold backwards and thus do not interfere further.
  • the free-hanging fangs have indeed shown to be stor-sensitive, since they are not connected to any mechanical or hydraulic actuator, but they have the disadvantage that due to the center of gravity or the outer shape and the Aufstellitiss on the tooth tip it Folding can come without penetrating the ground.
  • the invention has the object to avoid in particular the aforementioned disadvantage.
  • the invention is based on the idea that the crew in preparation for the clearing mission to release the fangs located at the Dozerstrom from a transport position and hang them freely down below the cutting edge of the Dozerstrom.
  • the single fang has a kind of Aufstellklaue or the like, which prevents the fang can slip away when placed and folds up.
  • the tip of the tooth When reversing, the tip of the tooth generates a set-up torque, so that the stop of the fang on the Dozerschildunterseite comes to rest and initiates the forces of tearing in the shield.
  • the forces on the fang tip or on the claw create a moment, which causes the fang to fold behind the shield.
  • a Fang 1 a Dozerstrom 2 is shown.
  • the Fang 1 has as outstanding design features a Fang leopardlagerung 1.1, a bore 1.2 for the transport lock and a Aufstellklaue 1.5 and a stop 1.6 as a moment support.
  • the fang 1 has an armored cutting edge 1.3 and an armored fang tip 1.4.
  • the Aufstellklaue 1.5 is narrower than the cutting edge 1.3 in order to obtain a free cut.
  • Fig. 2 the Dozerstrom 2 is shown, which consists essentially of a Dozerschild 2.1, hydraulic adjusting 2.2, Dozerarmen 2.3 and the free-hanging fangs 1.
  • the fangs 1 are mounted in the Fang leopardlager 2.4 pendelnd. In the illustration, the Dozerstrom 2 is above the bottom. 3
  • Fig. 3 shows the Dozerstrom 2 with a free-hanging Fang 1 placed on the floor 3 or pressed.
  • the Dozerstrom 2 is lowered for the tearing operation on the floor 3 by the adjusting cylinder 2.2 is extended.
  • the Fang 1 oscillates in the center of gravity until it hits the ground 3.
  • a force 4 is exerted, which forms as reaction forces 4.1 and 4.2 as moment equilibrium to the Fangierelagerung 2.4.
  • Fig. 4 is the Dozerstrom 2 with the at least one fang 1 pressed into the bottom 3.
  • the driving forces 5 of the vehicle then generate reaction forces 5.1 at the cutting edge 1.3 of the Fang 1.
  • the reaction forces 5.1 in turn generate a moment about the Fangierelagerung 2.4, which are discontinued via the stop 1.6 on Dozerschild 2.1 as a reaction force 5.2.
  • the foldable fang 1 can be mechanically locked in working position and moved via a mechanical, electrical or hydraulic drive unit in the tear or transport position (not shown in detail).

Description

Das Relßen mit Hydraulikbaggern beispielsweise für Direktabbau ist auf der Internetseite httc.//www.baumaschine.de/Portal/Archive/2 2004/Wissenschaft/direktabbau/direktabbau.pdf nachlesbar. Eine Dozeranlage mit einem Reißzahn zeigt unter anderem die Internetseite http://forum.bauforum24.biz/forum/index.php?showtopic=27685.The Relßen with hydraulic excavators, for example, for direct mining is on the website httc.//www.baumaschine.de/Portal/Archive/2 2004 / Science / direct reduction / direktabbau.pdf nachlesbar. A Dozeranlage with a fang shows, among other things, the website http://forum.bauforum24.biz/forum/index.php?showtopic=27685.

Aus der GB 645,320 A sind eine kombinierte, am Traktor montierbare Bulldozeranlage sowie ein Aufreißer bekannt, Diese Anlage verfügt über einen Rahmen für die Dozerschaufel und für mehrere klappbare Zähne, den jeweils ein Widerlager zugeordnet ist, um die Zähne in einer Einsatzposition zu hallen.From the GB 645,320 A a combined tractor-mountable bulldozer and a ripper are available. This rig features a dozer bucket frame and multiple foldable teeth, each with an abutment to hold the teeth in an operative position.

Die US 2,996,818 A beschreibt einen klappbaren Reißzahn, der über eine Kette in einer angehobenen Position gebracht werden kann, wenn er nicht genutzt wird.The US 2,996,818 A describes a foldable fang that can be brought over a chain in a raised position when not in use.

Bekannte Rad- bzw. Kettenfahrzeuge mit außen adaptierten Räumschaufelanlagen sind unter anderem Berge- und/oder Pionierpanzer, die für die Überwindung und Beseitigung von Hindernissen ausgelegt sind. Im Fall, dass verdichteter oder gefrorener Boden mit der Dozeranlage geräumt werden muss, werden In der Regel feststehende, hydraulisch betätigte oder klappbare, freihängende Reißzähne eingesetzt. Diese werden im Bedarfsfall manuell durch die Besatzung aus der Arretierung genommen und herunter geklappt. Beim Aufreißen des Bodens stellen sich diese Zähne auf. Bedingt durch Ihren Elnbau werden die Reißzähne an einer Dozeranlage beim Rückwärtsfahren eingesetzt. Beim Vorwärtsfahren bzw. beim Räumen klappen die Reißzähne selbsttätig nach hinten und stören somit nicht weiter. Im rauen Einsatz haben sich die freihängenden Reißzähne zwar selbst als storunempfindlich gezeigt, da sie mit keiner mechanischen bzw. hydraulischen Stelleinrichtung verbunden sind, doch welsen sie den Nachteil auf, dass aufgrund der Schwerpunktlage bzw. die äußere Form und des Aufstellpunktes auf der Zahnspitze es zum Einklappen kommen kann, ohne in den Boden einzudringen.Known wheel or tracked vehicles with externally adapted Räumschaufelanlagen include mountain and / or Pionierpanzer, which are designed to overcome and eliminate obstacles. In case compacted or frozen ground needs to be cleared with the dozer, fixed, hydraulically actuated or hinged free-hanging fangs are usually used. If necessary, these are manually removed from the lock by the crew and folded down. When tearing the soil, these teeth stand up. Due to your Elnbau the fangs are used at a Dozeranlage when reversing. When driving forward or when broaching, the fangs automatically fold backwards and thus do not interfere further. In rough use, the free-hanging fangs have indeed shown to be stor-sensitive, since they are not connected to any mechanical or hydraulic actuator, but they have the disadvantage that due to the center of gravity or the outer shape and the Aufstellpunktes on the tooth tip it Folding can come without penetrating the ground.

Hier stellt sich die Erfindung die Aufgabe, insbesondere den vorgenannten Nachteil zu vermeiden.Here, the invention has the object to avoid in particular the aforementioned disadvantage.

Gelöst wird die Aufgabe durch die Merkmale des Patentanspruchs 1. Vorteilhafte Ausgestaltungen sind In den Unteransprüchen aufgeführt.The object is achieved by the features of claim 1. Advantageous embodiments are listed in the dependent claims.

Der Erfindung liegt die Idee zugrunde, dass die Besatzung in Vorbereitung auf die Räummission die an der Dozeranlage befindlichen Reißzähne aus einer Transportstellung zu lösen und diese frei nach unten unterhalb der Schneidkante der Dozeranlage zu hängen. Beim Aufsetzen des Reißzahns mit Aufstellkraft wird dieser über Aufstellpunkte gezwungen, stehen zu bleiben und beim Rückwärtsfahren in den Boden einzudringen. Dazu verfügt der einzelne Reißzahn über eine Art Aufstellklaue oder dergleichen, die verhindert, dass der Reißzahn beim Aufsetzen wegrutschen kann und hochklappt. Beim Rückwärtsfahren erzeugt die Zahnspitze ein Aufstellmoment, so dass der Anschlag des Reißzahns auf der Dozerschildunterseite zum Anliegen kommt und die Kräfte des Reißens in das Schild einleitet. Beim Vorwärtsfahren erzeugen die Kräfte an der Reißzahnspitze bzw. an der Klaue ein Moment, welches dazu führt, dass der Reißzahn hinter das Schild klappen kann.The invention is based on the idea that the crew in preparation for the clearing mission to release the fangs located at the Dozeranlage from a transport position and hang them freely down below the cutting edge of the Dozeranlage. When putting on the Fang with Aufstellkraft this is forced over Aufstellpunkte to stop and penetrate when reversing into the ground. For this purpose, the single fang has a kind of Aufstellklaue or the like, which prevents the fang can slip away when placed and folds up. When reversing, the tip of the tooth generates a set-up torque, so that the stop of the fang on the Dozerschildunterseite comes to rest and initiates the forces of tearing in the shield. When driving forwards, the forces on the fang tip or on the claw create a moment, which causes the fang to fold behind the shield.

Anhand eines Ausführungsbeispiels mit Zeichnung soll die Erfindung näher erläutert werden. Es zeigt:

Fig. 1
einen Reißzahn mit Anstellklaue,
Fig. 2
eine Dozeranlage mit freihängendem Reißzahn,
Fig. 3
die Dozeranlage mit freihängendem Reißzahn auf dem Boden aufgestellt bzw. angedrückt,
Fig. 4
die Dozeranlage mit Reißzahn in den Boden gedrückt, Fahrzeug in Rückwärtsfahrt.
Reference to an embodiment with drawing, the invention will be explained in more detail. It shows:
Fig. 1
a fang with a parking claw,
Fig. 2
a Dozeranlage with free-hanging Fang,
Fig. 3
The Dozeranlage with free-hanging Fang set up on the floor or pressed,
Fig. 4
The Dozeranlage with Fang pressed into the ground, vehicle in reverse.

In Fig. 1 ist ein Reißzahn 1 einer Dozeranlage 2 dargestellt. Der Reißzahn 1 hat als hervorragende Konstruktionsmerkmale eine Reißzahnlagerung 1.1, eine Bohrung 1.2 für die Transportsicherung sowie eine Aufstellklaue 1.5 und einen Anschlag 1.6 als Momentenstütze. Des Weiteren besitzt der Reißzahn 1 eine gepanzerte Schneidkante 1.3 und eine gepanzerte Reißzahnspitze 1.4. Die Aufstellklaue 1.5 ist schmaler als die Schneidkante 1.3, um einen Freischnitt zu erhalten.In Fig. 1 a Fang 1 a Dozeranlage 2 is shown. The Fang 1 has as outstanding design features a Fangzahnlagerung 1.1, a bore 1.2 for the transport lock and a Aufstellklaue 1.5 and a stop 1.6 as a moment support. Furthermore, the fang 1 has an armored cutting edge 1.3 and an armored fang tip 1.4. The Aufstellklaue 1.5 is narrower than the cutting edge 1.3 in order to obtain a free cut.

In Fig. 2 ist die Dozeranlage 2 dargestellt, die im Wesentlichen aus einem Dozerschild 2.1, hydraulischen Verstellzylindern 2.2, Dozerarmen 2.3 und den freihängenden Reißzähnen 1 besteht. Die Reißzähne 1 sind in der Reißzahnlagerung 2.4 pendelnd gelagert. In der Darstellung befindet sich die Dozeranlage 2 oberhalb des Bodens 3.In Fig. 2 the Dozeranlage 2 is shown, which consists essentially of a Dozerschild 2.1, hydraulic adjusting 2.2, Dozerarmen 2.3 and the free-hanging fangs 1. The fangs 1 are mounted in the Fangzahnlager 2.4 pendelnd. In the illustration, the Dozeranlage 2 is above the bottom. 3

Fig. 3 zeigt die Dozeranlage 2 mit einem freihängenden Reißzahn 1 auf dem Boden 3 aufgestellt bzw. angedrückt. Die Dozeranlage 2 wird für den Reißvorgang auf den Boden 3 abgesenkt, indem der Verstellzylinder 2.2 ausgefahren wird. Der Reißzahn 1 pendelt im Schwerpunkt, bis dieser auf dem Boden 3 auftrifft. Beim Andrücken des Reißzahnes 1 wird eine Kraft 4 ausgeübt, welche sich als Reaktionskräfte 4.1 und 4.2 als Momentengleichgewicht um die Reißzahnlagerung 2.4 ausbildet. Fig. 3 shows the Dozeranlage 2 with a free-hanging Fang 1 placed on the floor 3 or pressed. The Dozeranlage 2 is lowered for the tearing operation on the floor 3 by the adjusting cylinder 2.2 is extended. The Fang 1 oscillates in the center of gravity until it hits the ground 3. When pressing the Fang 1 a force 4 is exerted, which forms as reaction forces 4.1 and 4.2 as moment equilibrium to the Fangzahnlagerung 2.4.

In Fig. 4 ist die Dozeranlage 2 mit dem wenigstens einem Reißzahn 1 in den Boden 3 gedrückt. Nach dem Aufsetzen und Eindringen des Reißzahnes 1 in den Boden 3 wird der Reißvorgang begonnen, indem sich das Fahrzeug rückwärts bewegt. Die Antriebskräfte 5 des Fahrzeuges erzeugen in diesem Fall dann Reaktionskräfte 5.1 an der Schneidkante 1.3 des Reißzahnes 1. Die Reaktionskräfte 5.1 ihrerseits erzeugen ein Moment um die Reißzahnlagerung 2.4, welche über den Anschlag 1.6 am Dozerschild 2.1 als Reaktionskraft 5.2 abgesetzt werden.In Fig. 4 is the Dozeranlage 2 with the at least one fang 1 pressed into the bottom 3. After placement and penetration of the Fang 1 in the bottom 3 of the breaking process is started by the vehicle moves backwards. The driving forces 5 of the vehicle then generate reaction forces 5.1 at the cutting edge 1.3 of the Fang 1. The reaction forces 5.1 in turn generate a moment about the Fangzahnlagerung 2.4, which are discontinued via the stop 1.6 on Dozerschild 2.1 as a reaction force 5.2.

Der klappbare Reißzahn 1 kann in Arbeitstellung mechanisch arretiert und über eine mechanische, elektrische oder hydraulische Antriebseinheit in die Reiß- bzw. Transportposition bewegt werden (nicht näher dargestellt).The foldable fang 1 can be mechanically locked in working position and moved via a mechanical, electrical or hydraulic drive unit in the tear or transport position (not shown in detail).

Claims (11)

  1. Ripper tooth (1) or ripper teeth for attachment devices (2) on military wheeled and tracked vehicles and also on civilian devices, such as on a dozer assembly (2), wherein the ripper tooth (1) or the ripper teeth is/are swing-mounted, and the swing-mounted ripper tooth (1) has at least a ripper tooth bearing (1.1), a bore (1.2) for transport securement and also a setting-up claw (1.5) and a stop (1.6), wherein the ripper tooth (1) further has a cutting edge (1.3) and a cutting tip (1.4), and wherein the swing-mounted ripper tooth (1) can be fastened to the dozer assembly (2) in a swinging manner by means of a ripper tooth bearing (2.4) and characterized in that, upon placing the ripper tooth (1) with a setting-up force, said tooth is forced, via setting-up points, to be imobilized, and in that, upon applying pressure to the ripper tooth (1), a force (4) is exerted which is formed, as reaction forces (4.1, 4.2) as moment equilibrium, about the ripper tooth bearing (2.4).
  2. Ripper tooth (1) according to Claim 1, characterized in that the swing-mounted ripper tooth (1) can be mechanically locked in the working position.
  3. Ripper tooth (1) according to Claim 1 or 2, characterized in that the swing-mounted ripper tooth (1) can also be moved into the ripping or transport position via a mechanical, electrical or hydraulic drive unit.
  4. Ripper tooth (1) according to one of Claims 1 to 3, characterized in that the setting-up claw (1.5) is narrower than the cutting edge (1.3) in order to obtain a free cut.
  5. Ripper tooth (1) according to one of Claims 1 to 4, characterized in that the cutting edge (1.3) and the cutting tip (1.4) are armoured.
  6. Dozer assembly (2) having a ripper tooth (1) or ripper teeth according to one of Claims 1 to 5.
  7. Vehicle having a dozer assembly (2) according to Claim 6.
  8. Vehicle according to Claim 7, characterized in that, during reverse travel, the cutting tip (1.4) produces a setting-up moment, with the result that the stop of the ripper tooth (1) comes to bear on the dozer plate underside and introduces the ripping forces into the dozer plate (2.1).
  9. Vehicle according to Claim 7 or 8, characterized in that, during forward travel, the forces on the ripper tooth tip or on the claw produce a moment which results in the ripper tooth (1) being able to swing behind the dozer plate (2.1).
  10. Vehicle according to one of Claims 7 to 9, characterized in that drive forces (5) of the vehicle produce reaction forces (5.1) on the cutting edge (1.3) of the ripper tooth (1) if the vehicle is moving backwards.
  11. Vehicle according to Claim 10, characterized in that the reaction forces (5.1) for their part produce a moment about the ripper tooth bearing (2.4) which are transferred via the stop (1.6) at the dozer plate (2.1) as reaction force (5.2).
EP09002916.6A 2008-04-28 2009-02-28 Fold-away tooth with positioning claw for a dozer assembly Not-in-force EP2113611B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810021228 DE102008021228A1 (en) 2008-04-28 2008-04-28 Folding Fang with Aufstellklaue for a Dozeranlage

Publications (2)

Publication Number Publication Date
EP2113611A1 EP2113611A1 (en) 2009-11-04
EP2113611B1 true EP2113611B1 (en) 2019-01-09

Family

ID=40904171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09002916.6A Not-in-force EP2113611B1 (en) 2008-04-28 2009-02-28 Fold-away tooth with positioning claw for a dozer assembly

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EP (1) EP2113611B1 (en)
DE (1) DE102008021228A1 (en)
ES (1) ES2718253T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321273B (en) * 2013-07-10 2015-07-29 山推工程机械股份有限公司 A kind of toothed tip of scarifier, bulldozer and toothed tip of scarifier model generating method
CN105297810A (en) * 2015-10-10 2016-02-03 正平路桥建设股份有限公司 Excavation construction method of assembled reinforced scarifier for plateau permafrost region
CN105887963B (en) * 2016-04-28 2019-04-09 张诗贺 Excavator bucket teeth

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996818A (en) * 1958-09-08 1961-08-22 Walter L Buuck Scarifier attachments for bulldozer blades

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468380A (en) * 1947-04-08 1949-04-26 Roy W Smith Bulldozer blade attachment
GB645320A (en) 1947-10-22 1950-10-25 Ruston Bucyrus Ltd Improvements in or relating to a material handling implement and ripper
DE1096835B (en) * 1957-01-24 1961-01-05 Frisch Geb Kg Eisenwerk Grader
DE2707006A1 (en) * 1977-02-18 1978-08-24 Frisch Gmbh Earthworking grader with adjustable scraper blade - has blade support frame pivoted at rear about universal joint and carried on cylinder at front
JPH0297438U (en) * 1989-01-13 1990-08-02
US7739815B2 (en) * 2003-01-23 2010-06-22 Horton Lee A Ripper excavation tool

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996818A (en) * 1958-09-08 1961-08-22 Walter L Buuck Scarifier attachments for bulldozer blades

Also Published As

Publication number Publication date
ES2718253T3 (en) 2019-06-28
EP2113611A1 (en) 2009-11-04
DE102008021228A1 (en) 2009-10-29

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