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WO2008141671A1 - Tête de coupe de plante haute pour machines hache-bois autopropulsées. - Google Patents

Tête de coupe de plante haute pour machines hache-bois autopropulsées. Download PDF

Info

Publication number
WO2008141671A1
WO2008141671A1 PCT/EP2007/054804 EP2007054804W WO2008141671A1 WO 2008141671 A1 WO2008141671 A1 WO 2008141671A1 EP 2007054804 W EP2007054804 W EP 2007054804W WO 2008141671 A1 WO2008141671 A1 WO 2008141671A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
unit
cutting
chipping
propelled
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.)
Ceased
Application number
PCT/EP2007/054804
Other languages
English (en)
Inventor
Giuliano Sgorlon
Denis Gobbo
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.)
BIOMASSE EUROPA Srl
VENETA MAIS Srl
Original Assignee
BIOMASSE EUROPA Srl
VENETA MAIS Srl
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 BIOMASSE EUROPA Srl, VENETA MAIS Srl filed Critical BIOMASSE EUROPA Srl
Priority to PCT/EP2007/054804 priority Critical patent/WO2008141671A1/fr
Publication of WO2008141671A1 publication Critical patent/WO2008141671A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/093—Combinations of shearing, sawing or milling apparatus specially adapted for felling trees
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/10—Mowers combined with apparatus performing additional operations while mowing with means for crushing or bruising the mown crop

Definitions

  • This invention concerns a head for cutting tall plants, for use in association with self-propelled chipping machines and particularly suitable for use in cutting poplar trees grown on a short two-year cycle.
  • the poplar is cut and chopped to obtain the required size of chipped wood.
  • the operator cuts the plant with manual tools and then places it in the chipping machine, from the outlet of which the chopped poplar wood can be collected.
  • This cutting unit consists of a pair of revolving blades with a plurality of lifting devices installed over them, which lift the poplar stem and direct it towards a chipping unit forming part of the self-propelled chipping machine.
  • this head can be used exclusively with very young plants, having a diameter of the stem no greater than 7-8 cm. This means that, in the particular case of poplar trees, the cutting head can only be used with plants that are no more than one year old.
  • This drawback derives from the fact that, if the stem of the plant being cut is too large in diameter, when it reaches the chipping unit forming part of the self- propelled chipping machine, it is not flexible enough to bend and consequently cannot be chopped properly. To be more precise, most of the times the stem slides diagonally inside the chipping machine, consequently blocking the machine and preventing it from operating smoothly.
  • a further drawback of the above-described head consists in that it is made with hydraulic transmission systems, which makes it necessary to apply hydraulic pumps to the self-propelled chipping machine in order to drive said transmission systems.
  • This last aspect is a particularly important limitation because it is common knowledge that more adult poplar trees, e.g. those approximately two years old, are more suitable for the purpose of manufacturing chipboard panels and for the production of chipped wood for use as fuel in power plants.
  • the object of the present invention is to overcome all the above-mentioned drawbacks typical of the known state of the art.
  • a first object of the present invention is to produce a tall plant cutting head to be associated with a self-propelled chipping machine that is also suitable for cutting tall plants having a diameter in excess of 7-10 cm, such as poplar trees on a short two-year cycle.
  • a plant cutting head to be associated with self-propelled chipping machines of the type comprising a frame, complete with means for coupling it to said self-propelled chipping machine, with an associated unit for cutting said plants that, in accordance with the contents of the main claim, is characterized in that it comprises a conveyor unit situated downstream of said cutting unit, that has two or more rotating elements cooperating with one another so as to arrange the tree stems in a substantially horizontal position and carry them towards a chipping unit forming part of said chipping machine.
  • the component parts of the cutting head are driven by mechanical transmission means.
  • the cutting head that is the subject of the invention has a first transmission system for driving the cutting unit and a second transmission system for driving the conveyor unit.
  • the latter unit consists of three revolving rollers with a plurality of conveyor blades arranged around their perimeter.
  • the presence of the conveyor unit advantageously allows the cut poplar stems to be conveyed in the direction of the chipping unit of the self-propelled chipping machine at the right inclination so as to prevent them from sliding diagonally into the machine, thereby blocking the machine's operation.
  • the conveyor unit is composed of three revolving rollers placed so as to form a triangle, and each roller is equipped with a plurality of conveyor blades that bring the cut poplar trees into a position with their stems substantially horizontal.
  • Another advantage lies, moreover, in that these mechanical transmissions simply need to be connected to the power supply of the self-propelled chipping machine in order to drive said transmissions without the need to add any hydraulic pumps or other costly elements.
  • the presence of two mechanical transmission systems for separately driving the conveyor unit and the cutting unit advantageously enables the mechanical power required to be drawn from different points of the self-propelled chipping machine, further simplifying the construction of the head that is the subject of the invention.
  • the revolving elements of the conveyor unit turn at a lower speed than those of the cutting unit, the opportunity to connect them to two different points on the self-propelled chipping machine enables the units to be operated correctly with transmissions of limited size and complexity.
  • FIG. 2 shows a cross-section of the cutting head of the invention
  • Figures 3 to 5 show several details of the cutting head of the invention
  • FIG. 6 shows a further axonometric view of the cutting head of the invention
  • FIG 7 shows the cutting head of the invention during an operating stage.
  • the cutting head that is the subject of the invention is illustrated in Figure 1 , where it is indicated as a whole by the numeral 1 and shown associated with a self-propelled chipping machine T.
  • the head 1 is of the type comprising a frame 2, complete with means 3 for coupling it to the self-propelled chipping machine T, with an associated unit 4 for cutting the plants close to the ground.
  • the cutting head 1 comprises a conveyor unit 5 that, as also shown in Figure 2, has three revolving elements 5a, 5b, 5c cooperating with one another so as to bring the cut stems into a substantially horizontal position and convey them towards a chipping unit 6 forming part of the self-propelled chipping machine T.
  • the revolving elements 5a, 5b, 5c are consequently installed downstream of the cutting unit 4 and upstream of the chipping unit 6.
  • each of the revolving elements 5a, 5b, 5c is a roller 7 with a plurality of conveyor blades 8 around its perimeter.
  • the three revolving elements 5a, 5b, 5c are arranged, as shown in Figure 2, so that the three centers 10, 11 and 12 of the circumferences identified by the cross-sections of each of the rollers form the vertices of a triangle that, according to the preferred embodiment described herein, is a scalene triangle, the base of which lies on the line Y pointing towards the surface of the ground on which the head 1 rests.
  • the triangle may be an isosceles triangle or an equilateral triangle.
  • this comprises a pair of lifting units 15, as shown in
  • the cutting unit 4 also comprises a pair of revolving blades 18, each of which is mechanically associated with a corresponding lifting unit 15.
  • each revolving blade 18 is situated underneath its respective lifting unit 15 and has its center of rotation coaxial to the center of the circumference identified by the casing 17 of the corresponding lifting unit 15.
  • the mechanical association between the revolving blades 18 and the lifting unit 15 enables the two to turn at different angular velocities.
  • the revolving blades and lifting units may be present in a number other than two, or the revolving blades may be arranged differently with respect to the corresponding lifting units.
  • a first transmission system 19 mechanically connects the power supply of the chipping machine T to the cutting unit 4, while a second transmission system 20 mechanically connects the power supply of the chipping machine T to the conveyor unit 5.
  • the first transmission system 19 comprises a gear wheel assembly 21 connected to the aforementioned power supply by means of moving parts consisting of a pair of pulleys 22 connected together with belts 23.
  • the second transmission system 20 comprises a gear wheel assembly 24 connected to the power supply by means of moving parts consisting of a cardan joint 25.
  • the only components added to the chipping machine T in order to operate the head 1 of the invention are advantageously the cardan joint 25 and the pulley 22.
  • the cutting head 1 of the invention comprises an extendable fork 26 for pressing against and guiding the fall of the cut stems.
  • the user associates the head 1 with the self-propelled chipping machine T using the coupling means 3 provided on the cutting head 1.
  • the user connects the pulley 22 and the cardan joint 25, which are installed on the chipping unit 6 of the self-propelled chipping machine T, to the head 1.
  • the driving force of the power supply serving the chipping machine T is thus mechanically transferred to the cutting unit 4 and to the conveyor unit 5 on the head 1 of the invention.
  • the self-propelled chipping machine T When the self-propelled chipping machine T is started, it drives the chipping unit 6, the conveyor unit 5 and the cutting unit 4.
  • the cutting unit 4 on the cutting head 1 cuts the plants P close to the ground, i.e. at a height of approximately 7-8 cm above the ground.
  • the cutting head of the invention achieves all the previously-stated objects. To be more precise, the object of producing a head for cutting tall plants that is even suitable for cutting stems with a diameter in excess of 7-10 cm, such as poplar trees on a short two-year cycle, has been achieved.
  • the invention achieves the object of producing a cutting head that is less expensive than the cutting heads carried out according to the known art because, as explained above, it only comprises mechanical elements that are driven mechanically, not hydraulically, so that its application to the self-propelled chipping machine only requires the addition of a cardan joint and a pulley, unlike the chipping heads of known type, which are hydraulically driven and consequently require the addition of hydraulic pumps.
  • the cutting head that is the subject of the invention may undergo changes that, though not illustrated or described herein, shall nonetheless be covered by the present patent, provided that they come within the scope of the claims that follow.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Scissors And Nippers (AREA)

Abstract

La présente invention concerne une tête de coupe (1) pour plantes hautes (P) à associer à des machines hache-bois autopropulsées (T) de type comprenant un cadre (2), complet avec des moyens (3) de couplage de la machine hache-bois autopropulsée (T) à une unité associée (4) pour couper les plantes (P). La tête se compose d'une unité de convoyeur (5) située en aval de l'unité de coupe (4), avec des éléments tournants (5a, 5b, 5c) qui coopèrent l'un avec l'autre pour amener les tiges coupées sur un plan pratiquement horizontal et pour les acheminer vers une unité de hachage (6) qui fait partie de la machine hache-bois (7).
PCT/EP2007/054804 2007-05-17 2007-05-17 Tête de coupe de plante haute pour machines hache-bois autopropulsées. Ceased WO2008141671A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/054804 WO2008141671A1 (fr) 2007-05-17 2007-05-17 Tête de coupe de plante haute pour machines hache-bois autopropulsées.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/054804 WO2008141671A1 (fr) 2007-05-17 2007-05-17 Tête de coupe de plante haute pour machines hache-bois autopropulsées.

Publications (1)

Publication Number Publication Date
WO2008141671A1 true WO2008141671A1 (fr) 2008-11-27

Family

ID=38314306

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/054804 Ceased WO2008141671A1 (fr) 2007-05-17 2007-05-17 Tête de coupe de plante haute pour machines hache-bois autopropulsées.

Country Status (1)

Country Link
WO (1) WO2008141671A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009103269A1 (fr) * 2008-02-24 2009-08-27 Viessmann Werke Gmbh & Co. Kg Véhicule pour récolter des plantes ligneuses minces sur tige
WO2010129986A1 (fr) * 2009-05-15 2010-11-18 Future Farm Industries Crc Limited Moissonneuses d'arbre
ITTO20091002A1 (it) * 2009-12-18 2011-06-19 Biopoplar S R L Testa di taglio per colture legnose a ciclo breve
WO2017111633A1 (fr) * 2015-12-23 2017-06-29 R&D Centre Inventor Sp. Z.O.O. Construction de machine pour la récolte de cultures énergétiques

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634569A (en) * 1951-03-01 1953-04-14 Int Harvester Co Stalk crop harvester
US4207726A (en) * 1977-12-24 1980-06-17 Karl Mengele & Sohne Maschinenfabrik & Eisengiesserei Gmbh & Co Harvesting implement
US4860808A (en) * 1987-09-14 1989-08-29 Clerc De Bussy Le Process and device for harvesting copses grown in lines
DE9316683U1 (de) * 1993-11-02 1994-02-10 Claas OHG beschränkt haftende offene Handelsgesellschaft, 33428 Harsewinkel Feldhäcksler
EP0818136A1 (fr) * 1996-07-11 1998-01-14 CLAAS KGaA Dispositif pour hacher des végétaux
DE19715552C1 (de) * 1997-04-15 1998-10-15 Heinrich Noelke Schneid- und Entschäbungssystem für ein Ernten und zum Behandeln geernteter Hanfpflanzen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634569A (en) * 1951-03-01 1953-04-14 Int Harvester Co Stalk crop harvester
US4207726A (en) * 1977-12-24 1980-06-17 Karl Mengele & Sohne Maschinenfabrik & Eisengiesserei Gmbh & Co Harvesting implement
US4860808A (en) * 1987-09-14 1989-08-29 Clerc De Bussy Le Process and device for harvesting copses grown in lines
DE9316683U1 (de) * 1993-11-02 1994-02-10 Claas OHG beschränkt haftende offene Handelsgesellschaft, 33428 Harsewinkel Feldhäcksler
EP0818136A1 (fr) * 1996-07-11 1998-01-14 CLAAS KGaA Dispositif pour hacher des végétaux
DE19715552C1 (de) * 1997-04-15 1998-10-15 Heinrich Noelke Schneid- und Entschäbungssystem für ein Ernten und zum Behandeln geernteter Hanfpflanzen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009103269A1 (fr) * 2008-02-24 2009-08-27 Viessmann Werke Gmbh & Co. Kg Véhicule pour récolter des plantes ligneuses minces sur tige
WO2010129986A1 (fr) * 2009-05-15 2010-11-18 Future Farm Industries Crc Limited Moissonneuses d'arbre
RU2545762C2 (ru) * 2009-05-15 2015-04-10 Фьюче Фарм Индастриз Црц Лимитед Лесоуборочные машины
US9585314B2 (en) 2009-05-15 2017-03-07 Bionic Beaver Pty Limited Tree harvesters
ITTO20091002A1 (it) * 2009-12-18 2011-06-19 Biopoplar S R L Testa di taglio per colture legnose a ciclo breve
WO2017111633A1 (fr) * 2015-12-23 2017-06-29 R&D Centre Inventor Sp. Z.O.O. Construction de machine pour la récolte de cultures énergétiques

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