EP0593893B1 - Raclage d'un dispositif rotatif de cultivation de sol - Google Patents

Raclage d'un dispositif rotatif de cultivation de sol Download PDF

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Publication number
EP0593893B1
EP0593893B1 EP93114642A EP93114642A EP0593893B1 EP 0593893 B1 EP0593893 B1 EP 0593893B1 EP 93114642 A EP93114642 A EP 93114642A EP 93114642 A EP93114642 A EP 93114642A EP 0593893 B1 EP0593893 B1 EP 0593893B1
Authority
EP
European Patent Office
Prior art keywords
scraper
spoon
rotary tool
tool according
approximately
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
Application number
EP93114642A
Other languages
German (de)
English (en)
Other versions
EP0593893A1 (fr
Inventor
Friedhelm Dutzi
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.)
RDZ DUTZI GmbH
Original Assignee
RDZ DUTZI GmbH
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Filing date
Publication date
Application filed by RDZ DUTZI GmbH filed Critical RDZ DUTZI GmbH
Publication of EP0593893A1 publication Critical patent/EP0593893A1/fr
Application granted granted Critical
Publication of EP0593893B1 publication Critical patent/EP0593893B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers

Definitions

  • the present invention relates to a rotating tool for tillage with a cylindrical casing, in the circumferential area of which at least one approximately axially extending stripper acts, the casing optionally being provided on its surface with axially spaced projections for local soil compaction, and the stripper on its the casing surface facing end with respect to a radial section through the rotating tool is profiled approximately like a spoon and runs out almost tangentially against the direction of rotation of the tool on the lateral surface.
  • Such a tool is used for tillage in agriculture and can be composed, for example, of loosening coulters that break the soil by lifting it slightly, a tine rotor that grips the upper crumb, throws it against a baffle plate and thus crushes it, and a packer roller that is used for consolidation and Ground closure ensures.
  • a packer roller that is used for consolidation and Ground closure ensures.
  • This scraper which is designed as a flat plate that extends axially over the smooth cylindrical jacket areas of the packer roller, is generally attached so that the free part is inclined at an acute angle to the direction of rotation of the packer roller and thus with an edge of its end face on it is present. Due to the impinging soil, this edge of the scraper becomes after a short period of operation sanded down so that a surface running parallel to the roller jacket is created. The wear zone in the area of the edge is very small, so that the scraper wears out very quickly. The distance between the scraper and the packer roller also increases and it is no longer possible to completely remove the adhesive soil material.
  • This object is achieved in that the direction of curvature of the scraper-shaped scraper is opposite to the curvature of the lateral surface, and that the concave side of the scoop-shaped scraper points downward.
  • the advantages achieved by the invention are, on the one hand, that the incoming earth current is opposed to a wear zone which is arranged perpendicular to the earth current, therefore extends over the entire stripper thickness and is therefore larger than before.
  • the spoon-like design which can be realized by an arch or angled shape, has the surprising effect that the incoming floor material is offered a receiving space that promotes the formation of an earth stocking. These earth trimmings provide effective wear protection for the scraper underneath.
  • Another feature of the invention is that the scraper is pressed against the lateral surface by the reaction force of the incoming earth current and not, as in the known case, away from it.
  • the spoon-like shape leads to an inherent increase in pressure, which is not the case with a flat design of the scraper.
  • the flat design of the holder and mounting plate ensures uniform power transmission.
  • the mounting plate is angled towards the spoon-like end against the spoon curvature. This prevents the soil particles detached from the packer roller from building up on the mounting plate.
  • FIG. 1 shows the part of a tool for tillage consisting of a packer roller 1.
  • the packer roller 1 is connected to the rest of the tool via fastening elements (not shown in more detail). It is generally pulled by a tractor without its own drive, which results in a clockwise rotation for FIG. 1.
  • the packer roller 1 is composed of a circular cylindrical jacket 2, which is provided on its surface with axially spaced projections in the form of several toothed disks 3, which serve for local soil compaction. Between the toothed disks 3, at least one axially extending wiper 4 engages in the peripheral region of the jacket 2.
  • This scraper 4 is connected via a scraper holder 5 and a scraper bar 6 to the packer roller bearing or to the rest of the tool in a manner not shown in more detail, the scraper being screwed to the scraper holder and the scraper holder to the scraper bar.
  • the scraper 4 which is arranged behind and slightly above the lowest roller point in the direction of travel, rests on a screw-on surface 5a of the scraper holder 5, which is inclined slightly downward in the packer roller direction.
  • the attachment between the scraper and the scraper holder is accomplished by screwing the screw-on surface 5a of the scraper holder 5 to a mounting plate 4a of the scraper 4 via elongated holes and screws 7.
  • the one-piece scraper 4 has at its end facing the lateral surface a spoon-like partial body 4b which is related to a radial section and which, with a surface 4c (cf.
  • the angular position of the surface 4c compared to the jacket 2 can be influenced on the one hand by the orientation of the scraper holder 5 and on the other hand by the shape of the spoon.
  • the spoon-like end ends with an end face 4d which runs parallel to the tool axis and approximately perpendicular to the lateral surface and represents the wear zone of the present embodiment.
  • FIG. 2 shows an embodiment of the scraper, in which the spoon-like shape has been realized by a harmonious curvature. It is also possible instead to work with a single or multiple angled profile shape.
  • FIG. 3 A corresponding exemplary embodiment is shown in FIG. 3, in which the scraper 14 is composed of a mounting plate 14a, a spoon-like metal body 14b, a surface 14c tapering tangentially to the packer roller and an end face 14d. In both cases, the spoon-like wiper profile is open at the bottom.
  • the lumps of earth adhering to the jacket of the packer roller are driven against the stripper 4 (or 14), in particular the end face 4d (14d) thereof, and are directed towards the inside of the bucket.
  • a movement away from the packer roller is impressed on them in accordance with the direction of the end face and the shape of the spoon, whereby they undergo detachment at the latest at the concave transition region between the spoon-like partial body 4b (14b) and the mounting plate 4a (14a) and fall down.
  • the spoon-like area of the scraper fills with a relatively firmly adhering soil during operation.
  • the wear zones of the scraper are no longer directly affected applied to the incoming earth current but shielded.
  • the wipers according to the invention therefore manage with minimal wear. While in conventional wipers, after tilling 20 to 30 hectares, the wipers usually had to be replaced, no material removal is discernible when using the design according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Working Implements (AREA)
  • Road Repair (AREA)

Claims (7)

  1. Outil tournant pour travailler le sol, comprenant une surface latérale cylindrique (2) dont la région du pourtour est attaquée par au moins un racloir s'étendant axialement (4, 14) et qui est pourvue, en particulier sur sa surface, de parties en saillie (3) à distance entre elles dans le sens axial en vue du compactage local du sol, cependant que le racloir (4, 14) présente à son extrémité (4b, 14b) qui est tournée vers la surface latérale un profil à peu près en forme de cuillère sur une vue en coupe radiale passant par l'outil tournant, et qu'il se termine à peu près tangentiellement sur la surface latérale (2) à l'opposé de la direction de rotation de l'outil, caractérisé par le fait que la direction de la courbure du racloir à profil en forme de cuillère est opposée à la courbure de la surface latérale, et par le fait que le côté concave du racloir à profil en forme de cuillère est dirigé vers le bas.
  2. Outil tournant selon la revendication 1, caractérisé par le fait que l'extrémité en forme de cuillère (4b, 14b) se termine par un côté frontal (4d, 14d) qui s'étend parallèlement à l'axe de l'outil et à peu près perpendiculairement à la surface latérale (2).
  3. Outil tournant selon la revendication 1, caractérisé par le fait que le racloir (4, 14) est pressé contre la surface latérale (2) par la force de réaction de la terre qui afflue.
  4. Outil tournant selon la revendication 1, caractérisé par le fait qu'une plaque de montage plate (4a, 14a) au moyen de laquelle le racloir (4, 14) est monté sur un support (5) se raccorde d'un seul tenant à l'extrémité en forme de cuillère (4b, 14b).
  5. Outil tournant selon la revendication 1, caractérisé par le fait que la plaque de montage (4a, 14a) est coudée à l'inverse de la courbure de la cuillère par rapport à l'extrémité en forme de cuillère (4b, 14b).
  6. Outil tournant selon la revendication 1, caractérisé par le fait que le profil à peu prés en forme de cuillère est réalisé au moyen d'un ou plusieurs pliages.
  7. Outil tournant selon la revendication 6, caractérisé par le fait que, dans le cas d'un pliage unique, l'extrémité du racloir qui se termine sur la surface latérale présente un angle compris entre 90° environ et 160° environ par rapport à la zone du racloir qui se raccorde à celle-ci.
EP93114642A 1992-10-22 1993-09-11 Raclage d'un dispositif rotatif de cultivation de sol Expired - Lifetime EP0593893B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9214279U 1992-10-22
DE9214279U DE9214279U1 (fr) 1992-10-22 1992-10-22

Publications (2)

Publication Number Publication Date
EP0593893A1 EP0593893A1 (fr) 1994-04-27
EP0593893B1 true EP0593893B1 (fr) 1996-11-27

Family

ID=6885107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114642A Expired - Lifetime EP0593893B1 (fr) 1992-10-22 1993-09-11 Raclage d'un dispositif rotatif de cultivation de sol

Country Status (3)

Country Link
EP (1) EP0593893B1 (fr)
AT (1) ATE145684T1 (fr)
DE (2) DE9214279U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004043038A1 (de) * 2003-10-02 2005-06-02 Bomag Gmbh Abstreifvorrichtung für eine Bodenverdichtungswalze und Bodenverdichtungswalze mit einer derartigen Abstreifvorrichtung
EP1520935B1 (fr) 2003-10-02 2011-01-26 BOMAG GmbH Racleur de nettoyage pour un rouleau de compactage et rouleau de compactage
DE202007008930U1 (de) * 2007-06-26 2007-09-20 Bomag Gmbh Abstreifvorrichtung für eine Bodenverdichtungswalze und Bodenverdichtungswalze mit einer derartigen Abstreifvorrichtung
CN106908296B (zh) * 2017-04-10 2023-06-02 东北农业大学 全自动土壤饱和器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124063A (en) * 1982-07-30 1984-02-15 Lely Nv C Van Der Soil cultivating implements
EP0294903A1 (fr) * 1987-06-10 1988-12-14 C. van der Lely N.V. Machine pour le travail du sol comportant un rouleau

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071051A (en) * 1960-04-11 1963-01-01 William E Martin Patch roller apparatus
US3554101A (en) * 1968-09-19 1971-01-12 Caterpillar Tractor Co Support bearing for compactor cleaner bar frame
US4348134A (en) * 1980-01-24 1982-09-07 Ingersoll-Rand Company Scraper assembly for a padfoot compactor, and method of forming same
DE8031009U1 (de) * 1980-11-20 1981-06-11 Maschinenfabrik Rau Gmbh, 7315 Weilheim Kruemelwalze
DE3219373C2 (de) * 1982-05-19 1986-12-04 Howard Machinery Public Ltd. Co., Harleston, Norfolk Abstreifer insbesondere für Krumenpacker
NL191352C (nl) * 1982-07-30 1995-06-16 Lely Nv C Van Der Grondbewerkingsmachine.
NL192557C (nl) * 1983-07-07 1997-10-03 Lely Nv C Van Der Grondbewerkingsmachine, in het bijzonder voor de bereiding van een zaaibed.
DE3340686C1 (de) * 1983-11-10 1985-01-24 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Bodenwalze
DE3626271A1 (de) * 1986-08-04 1988-03-10 Thrige Agro As Landwirtschaftliche bodenwalze mit abstreifern
DE8708361U1 (fr) * 1987-06-13 1988-10-13 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen, De
NL8801489A (nl) * 1988-06-10 1990-01-02 Lely Nv C Van Der Grondbewerkingsmachine.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124063A (en) * 1982-07-30 1984-02-15 Lely Nv C Van Der Soil cultivating implements
EP0294903A1 (fr) * 1987-06-10 1988-12-14 C. van der Lely N.V. Machine pour le travail du sol comportant un rouleau

Also Published As

Publication number Publication date
EP0593893A1 (fr) 1994-04-27
DE59304600D1 (de) 1997-01-09
ATE145684T1 (de) 1996-12-15
DE9214279U1 (fr) 1992-12-10

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