CA2291409A1

CA2291409A1 - Axial-drive felling head with sturdy attachment device

Info

Publication number: CA2291409A1
Application number: CA 2291409
Authority: CA
Inventors: Normand Roy
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-23
Filing date: 1999-12-23
Publication date: 2000-03-05

Abstract

Les têtes d'abattage à entraînement axial servant à retenir, couper et manipuler les arbres qui existent actuellement sur le marché utilisent un engrenage de type planétaire et sont fixées directement à un support installé à l'extrémité d'un bras manipulateur. Ce type d'engrenage a une structure complexe, nécessitant un entretien rigoureux et de plus, la fixation de la tête d'abattage à l'extrémité dudit bras manipulateur est inefficace telle qu'elle est présentement puisque ladite tête d'abattage se détache à cause de son poids. Ainsi, la présente invention remédie à tous ces inconvénients par un type d'engrenage plus simple et par une fixation robuste installée entre la tête d'abattage et le support situé à l'extrémité dudit bras manipulateur.The axially driven harvester heads used to hold, cut and manipulate the trees which currently exist on the market use a planetary type gear and are fixed directly to a support installed at the end of a manipulator arm. This type of gear has a complex structure, requiring rigorous maintenance and moreover, the fixing of the harvester head to the end of said manipulator arm is ineffective as it is presently since said harvester head is detached at because of its weight. Thus, the present invention overcomes all these drawbacks by a simpler type of gear and by a robust fixing installed between the felling head and the support located at the end of said manipulator arm.

Description

DESCRIPTION
1 Tête d'abattage à entraînement axial munie d'une fixation DESCRIPTION
1 Axially driven harvester head fitted with a fixing

2 robuste. 2 robust.

3 3

4 La présente invention consiste en une tête d'abattage à
entraînement axial munie d'une fixation robuste empêchant 6 le détachement de ladite tête du support fixé à un bras 7 manipulateur.

9 Les têtes d'abattage utilisées présentement et notamment celles faisant l'objet de la demande de brevet canadienne 11 numéro 2242538, sont munies d'un engrenage de type 12 planétaire qui est une structure complexe nécessitant un 13 entretien rigoureux et de plus, aucun système de fixation 14 n'existe empêchant ladite tête d'abattage de se détacher à cause de son poids élevé par rapport au support disposé
16 à l'extrémité d'un bras manipulateur.

18 L'inventeur a découvert que ces inconvénients peuvent être 19 supprimés en simplifiant le système d'engrenage et en disposant une fixation robuste entre la tête d'abattage 21 et le support situé à l'extrémité d'un bras manipulateur.

23 Relativement aux dessins qui illustrent la réalisation de 24 l'invention .
26 La Figure 1 représente le système de fixation en pièces 27 détachées dans leur position de montage.

29 La Figure 2 représente le bras manipulateur muni du support recevant la fixation robuste.

32 La Figure 3 représente la tête d'abattage fixée audit bras 33 manipulateur.

L' appareil comprend un bras manipulateur (Figure 2) 36 généralement hydraulique, lequel est muni à une extrémité

37 d' un support 1 reliant la tête d' abattage 2 (Figure 3) audit 38 bras; ledit support 1 étant une pièce de métal dont le 39 côté opposé à celui qui est fixé au bras manipulateur est 40 une surface plane servant à recevoir la tête d'abattage 41 2; entre ladite tête d'abattage 2 et ledit support 1 est 42 disposé un système de fixation (Figure 1) composé d'un 43 premier disque 3 de métal dont le centre est vide créant 44 ainsi un arc; une desdites surfaces planes du premier 45 disque 3 est fixée au moyen de boulons 4 à la surface 46 dorsale plane dudit support 1; l' autre surface plane dudit 47 premier disque 3 qui est opposée à la première est fixée 48 au moyen de boulons 6 à un second disque 5 de métal dont 49 le centre est vide créant ainsi un arc qui lui est fixé
50 au moyen de boulons 7 à la tête d'abattage 2; pour 51 permettre au système de fixation de suivre le mouvement 52 de rotation de la tête d'abattage 2, une pluralité
53 d'anneaux 8 de roulement sont disposés entre la 54 circonférence du deuxième disque 5 et l'arc du premier 55 disque 3, entre les surfaces latérales du premier disque 56 3 et du second disque 5 et entre l'autre surface latérale 57 du second disque 5 et la surface latérale de la tête 58 d'abattage Z; ladite tête d'abattage 2 est munie d'un 59 système d' engrenage 9 de type soit planétaire qui comprend 60 plusieurs étages superposées d'une pluralité de roues 61 d'engrenage disposées parallèles les unes â côté des 62 autres ou un système d'engrenage de type linéaire où
63 chacune des roues d'engrenage est disposée parallèle à
64 celle qui lui est contigüe une à la suite de l'autre;
65 lequel système d'engrenage 9 est encastré à l'intérieur de 66 la tête d' abattage 2 et est lui aussi fixé au moyen de 67 boulons 7 au second disque 5. 4 The present invention consists of a felling head with axial drive provided with a robust fixing preventing 6 the detachment of said head from the support fixed to an arm 7 manipulator.

9 The harvesting heads currently used and in particular those subject to the Canadian patent application 11 number 2242538, are provided with a gear type 12 planetary which is a complex structure requiring a 13 rigorous maintenance and more, no fixing system 14 does not exist preventing said felling head from coming off because of its high weight compared to the support placed 16 at the end of a manipulator arm.

18 The inventor has discovered that these disadvantages can be 19 deleted by simplifying the gear system and having a robust fixing between the harvester head 21 and the support located at the end of a manipulator arm.

23 Relative to the drawings which illustrate the making of 24 invention.
26 Figure 1 shows the fixing system in pieces 27 detached in their mounting position.

29 Figure 2 shows the manipulator arm fitted with the support receiving the robust fixing.

32 Figure 3 shows the harvester head attached to said arm 33 manipulator.

The device includes a manipulator arm (Figure 2) 36 generally hydraulic, which is provided at one end 37 of a support 1 connecting the harvester head 2 (Figure 3) to said 38 arms; said support 1 being a piece of metal, the 39 opposite side to the one attached to the manipulator arm is 40 a flat surface for receiving the harvester head 41 2; between said harvester head 2 and said support 1 is 42 arranged a fixing system (Figure 1) composed of a 43 first metal disc 3 whose center is empty creating 44 thus an arc; one of said flat surfaces of the first 45 disc 3 is fixed by means of bolts 4 to the surface 46 flat backbone of said support 1; the other flat surface of said 47 first disc 3 which is opposite to the first is fixed 48 by means of bolts 6 to a second metal disc 5 of which 49 the center is empty creating an arc attached to it 50 by means of bolts 7 to the felling head 2; for 51 allow the fastening system to follow the movement 52 of rotation of the harvester head 2, a plurality 53 of 8 rolling rings are arranged between the 54 circumference of the second disc 5 and the arc of the first 55 disc 3, between the side surfaces of the first disc 56 3 and second disc 5 and between the other side surface 57 of the second disc 5 and the lateral surface of the head 58 of slaughter Z; said harvester head 2 is provided with a 59 gear system 9 of either planetary type which includes 60 several stages superimposed with a plurality of wheels 61 gear arranged parallel to each other 62 others or a linear type gear system where 63 each of the gear wheels is arranged parallel to 64 the one contiguous to it one after the other;
65 which gear system 9 is embedded inside 66 harvester head 2 and is also fixed by means of 67 bolts 7 to the second disc 5.

Claims

1. Axially driven harvester head with robust attachment including a support connecting a harvester head to a manipulator arm; a system of fixation composed of a plurality of bearing rings and discs solidifying the relationship between said harvester head and said support; and a gear allowing the head of felling to rotate on itself 360 °.

2. Axial felling head fitted with a robust attachment such as defined to claim 1, in which the support is a part whose side opposite to that which is attached to a manipulator arm is a flat surface for receiving a head slaughter.

3. Axially driven harvester head fitted with a robust attachment such as defined to claim 1, wherein the fastening system is composed of a first disc with empty center creating an arc; one of said surfaces planes of first disc is fixed by means of bolts to the flat dorsal surface of said support;
the other flat surface of said first disc which is opposite to the first is attached to means of bolts to a second disc whose center is empty thus creating a bow, who is fixed by means of bolts to a harvester head.

4 4. Axially driven harvester head fitted with a robust attachment such as defined to claim 1, wherein a plurality of bearing rings are willing between the circumference of the second disc and the arc of the first disc, between surfaces side of the first and second disc and between the other side surface of the second disc and the lateral surface of a harvester head.

5. Axially driven harvester head fitted with a robust attachment such as defined to claim 1, wherein the gear is of the planetary type including several superimposed stages of a plurality of gear wheels arranged parallels one next to the other.

6. Axially driven harvester head fitted with a robust attachment such as defined to claim 1, in which the gear is of the linear type where each of the wheels gear is arranged parallel to that contiguous to it one after the other the other.

7. Axially driven harvester head fitted with a robust attachment such as defined to claims 1, 5 and 6, in which the gear is embedded in a head slaughter.

8. Axially driven harvester head provided with a robust fixing such as defined to claims 1, 3, 5 and 6, wherein the gear is also attached to the means bolts to the second disc.

9. Axially driven harvester head fitted with a robust attachment such as defined to claims 1 and 2, wherein the support is made of metal.

10. Axially driven harvester head fitted with a robust fixing such that defined to claims 1 and 3, wherein the first and second discs are made of metal.

11. Axial felling head fitted with a robust fixing such that defined to claims 1 and 4, in which the bearing rings are made of metal.