EP1393870B1 - Machine de fendage de bois - Google Patents

Machine de fendage de bois Download PDF

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Publication number
EP1393870B1
EP1393870B1 EP20030012761 EP03012761A EP1393870B1 EP 1393870 B1 EP1393870 B1 EP 1393870B1 EP 20030012761 EP20030012761 EP 20030012761 EP 03012761 A EP03012761 A EP 03012761A EP 1393870 B1 EP1393870 B1 EP 1393870B1
Authority
EP
European Patent Office
Prior art keywords
wood
splitting
stop
splitting device
piece
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
EP20030012761
Other languages
German (de)
English (en)
Other versions
EP1393870A1 (fr
Inventor
Johann Landrichinger
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.)
Lasco Heutechnik GmbH
Original Assignee
Lasco Heutechnik 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 Lasco Heutechnik GmbH filed Critical Lasco Heutechnik GmbH
Priority to SI200330507T priority Critical patent/SI1393870T1/sl
Priority to AT03012761T priority patent/ATE334789T1/de
Publication of EP1393870A1 publication Critical patent/EP1393870A1/fr
Application granted granted Critical
Publication of EP1393870B1 publication Critical patent/EP1393870B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B27L7/02—Arrangements for splitting wood using rotating members, e.g. rotating screws
    • B27L7/04—Conical screws

Definitions

  • the invention relates to a wood splitting device according to the preamble of claim 1.
  • a wood splitting device is apparent, for example, from FR-A-2 758 491.
  • a wood splitting device with a cone-shaped splitting element which has a thread-like structure on its conical surface.
  • the splitting element is placed with its tip on the wood block and set in rotation. Through the thread-like structure, the cone tip screwed into the wood block, which is then pushed apart by the splitting element and thus split.
  • the splitting cone can be fastened to a boom of a vehicle, for example a crane, and hydraulically operated there.
  • a wood splitter with a conical splitting element and an additional wood grab is known from FR-A-2758491. During the splitting operation, a piece of wood to be split can be held by the gripper, but this first has to be turned into a position suitable for gripping.
  • the invention has for its object to provide a wood splitting device with which a fast wood splitting operation can be achieved in conjunction with a high level of safety. This object is achieved according to the invention by the features of claim 1. Further embodiments of the invention will become apparent from the dependent claims.
  • the invention relates to a wood splitting device with a working head, a connecting means for connecting the working head with a motor-operated positioning device, a gap element, a drive means for rotational drive of the gap element and a stop for preventing MitFEens a splitting wood piece with the gap element.
  • the drive means comprise at least two hydraulic motors (22, 24) which can be operated in series.
  • the wood splitting device comprises a stop which prevents the co-rotation of the wood piece to be split.
  • the stop is in this case positioned so that a larger piece of wood rotating about the gap element abuts against the stop.
  • the stop may be a rod or a tube which assumes a fixed or adjustable position relative to the gap element.
  • a wooden gripper connected to the wood splitting device can be used as a stopper.
  • the wood gripper may be provided for holding the piece of wood when splitting or arranged so that a freely rotating piece of wood strikes against the wood gripper.
  • the drive means may be a motor which is arranged inside or outside the gap element and which in particular is hydraulically driven.
  • An advantageous positioning means is a device which can be connected to or attached to a vehicle, for example a machine boom or a crane arm of a crane. Vehicles with or without their own drive are suitable, such as an excavator, a hay excavator, a digger, a tractor, a Unimog or a trailer.
  • the stop can be positioned under the gap element.
  • the stop can be pressed into an already split and not fallen apart piece of wood, without the gap element is pressed, for example, in adjacent soil.
  • the stop can thus be used as a cutting element, which completely splits a split piece of wood whose two parts are still connected to fibers.
  • a position below the gap element takes the stop when it is positioned completely or at least large parts of the stop closer to the ground than the tip of the gap element. Also, a position obliquely below the gap element is considered to be below the gap element.
  • the stop has a dicing means which can be brought into a horizontal position.
  • the dicing means may be introduced into a split piece of wood, similar to an ax, and the piece of wood may be completely diced by a downwardly striking movement or by a reciprocal movement of the dicing means.
  • fiber remains or Astan enthusiasts still interconnected parts of a split piece of wood can be easily separated from each other in this way.
  • horizontal is meant a position which is aligned at least substantially parallel to the ground or substantially perpendicular to the acceleration direction of Erdhekraft.
  • the dicing means is vertical, ie towards the ground, movable.
  • a vertical movement of the dicing means allows a striking movement from above in the split piece of wood into it, which can be completely divided into two parts in a simple manner.
  • the division of still connected parts of an already split piece of wood can be facilitated if the dividing means in a horizontal position has a downwardly narrowing cross-section. With the narrower portion of the dicing agent is retracted between the still contiguous parts and fiber compounds or branch connections can be cut or torn. With the broader section of the dicing agent above, the two parts are pushed apart.
  • the cross-section may in particular be wedge-shaped or cut-shaped, as a result of which the dividing means can be used in a dividing manner like a knife.
  • the drive means comprises a plurality of hydraulic motors.
  • a drive means comprising two hydraulic motors, which can be operated in parallel, a particularly strong rotational movement of the gap element can be achieved, wherein only a part of the rotational force of each motor must be applied.
  • the load of the motors can be kept low, whereby a long life and high reliability of the motors can be achieved.
  • the hydraulic motors can be operated in series, rapid rotation is possible, which is particularly advantageous when unscrewing the gap element.
  • the motors are operable both in series and in parallel.
  • an operator can switch between parallel operation and series operation and one choose fast or slow rotation of the gap element. In this way, can be selected with a relatively fast movement with the usually low flow rate of a hydraulic pump installed on a hay excavator, for example, by an interaction of two hydraulic motors, and it can still be retracted with a high force in the wood to be split.
  • a particularly simple construction of the wood splitting device can be achieved in that the working head is movable relative to the positioning device and the drive means, the splitting element and the stop are arranged on the working head.
  • the drive means can also be arranged in the working head.
  • the working head is for example rotatable or pivotable on the positioning device in order to be able to bring the splitting element or the stop into a good working position.
  • the stop is designed to be movable relative to the gap element and the stop can be used in conjunction with the gap element as a wood grab.
  • the piece of wood to be split can be carried to a cleavage point without further expenditure on apparatus, split there and then loaded onto a carriage, for example.
  • the stopper is in this case designed to be movable around a joint in such a way that it can act as a forceps in conjunction with the gap element, that is to say it can be moved towards the gap element and acted upon by a holding force.
  • the holding force can be applied by a hydraulic mechanism.
  • the stop comprises at least two stop arms.
  • a piece of wood can be safely gripped between the arms and firmly.
  • the arms are parallel and expediently curved to the gap element. Slipping out of the piece of wood from the pliers formed from the arms and splitting element is counteracted.
  • the working head comprises a receiving device for receiving a wooden gripper.
  • the wood to be split can be easily put into position and the split wood parts, for example, for removal, piled up.
  • the log grapple can be easily rotated and thus brought into a good working position when the receiving device has a rotator.
  • the rotator provides the drive movement used, for example, to turn the log grab into a good working position.
  • the rotational energy can be transferred from the rotator to the log gripper via one or more cardan shafts and cardan joints.
  • a simple and quick tool change from the splitting element to the log gripper and vice versa can be achieved when the receiving device is positioned by a rotational movement of the working head at least partially pointing down.
  • the gripper can be pivoted in the direction of the shredded piece of wood by a simple rotary movement of the working head so that the gripper is brought into a position suitable for gripping the pieces of wood.
  • the splitting element can be brought by the oppositely directed rotational movement of the working head back to its working position.
  • the receiving device when a direction in which it points, forms an angle of less than 45 ° to a perpendicular imaginary line.
  • a lubricant container is connected to the gap element.
  • Lubricant can be applied to the surface of the gap element, whereby the adhesion of dirt and in particular resin to the gap element can be counteracted.
  • the penetration of the gap element into the piece of wood can be facilitated and the adhesion of the piece of wood to the gap element can be reduced.
  • the risk of MitFEens the wood piece is reduced around the gap element around.
  • wear of the gap element can be counteracted.
  • the lubricant container may be arranged outside the gap element and connected, for example, by a line to the gap element. However, the lubricant container is expediently arranged inside the gap element. There is no connection of the Gleitsch practicers with the gap element, for example in the form of a coupling, necessary, whereby a high reliability of the lubricant supply to the gap element can be ensured.
  • a safe and reliable guidance of a lubricant from the lubricant container to the outer surface of the gap element can be achieved by the gap element an outlet opening by which a connection is formed by the lubricant container to the outer surface of the gap element.
  • a lubricant channel can be designed so that the lubricant is drawn by the centrifugal force on a rotation of the gap element on the outer surface of the gap element.
  • a coupled with the rotation of the gap element feed pump through which is conveyed on a rotation of the gap element lubricant on the outer OH Formation It is also possible to provide a conveniently remotely operable valve, can be released by the lubricant at desired times.
  • the gap element may comprise a substantially conical head element and a substantially frusto-conical body element, wherein the outlet opening is arranged between the head element and the body element.
  • the outlet opening is thus arranged in the immediate vicinity of the head element, which is loaded the most when penetrating the gap element in the piece of wood.
  • a gap between the head element and the body element can be used as the outlet opening, whereby no separate outlet opening must be provided.
  • FIG. 1 shows, in a schematic manner, a wood splitting device 2 in a side view.
  • the wood splitting device 2 comprises a conical splitting element 4 for splitting a piece of wood 6, a stop 8 for preventing co-rotation of the wood piece 6 to be split with the splitting element 4.
  • the stop 8 comprises an outwardly pointing end Dicing means 10, which is designed in the form of a cutting edge ( Figure 3).
  • the splitting element 4 and the stop 8 are attached to a working head 12, which additionally carries a wooden gripper 14.
  • the working head 12 is connected by a connecting means 18 with a designed as a machine boom of a tractor positioning device 16 and movably mounted thereto.
  • the machine boom is connected to a machine, not shown, such as a tractor, a hay excavator or a hull piece of a wood splitter. Due to the movable mounting of the working head 12 on the machine boom of the working head 12 serves as a second positioning means with which the gap element 4, the stopper 8 and the wood gripper 14 are positioned in a working position.
  • the splitting element 4 is pressed onto the piece of wood 6 with the aid of the machine extension with its point 20 (FIG. 2). Then, the gap element 4 is set in rotation by two hydraulic motors 22 and 24 shown in FIG. 5, which serve as drive means of the gap element 4. On the outer surface of the gap element 4, a threaded structure 26 is attached, through which the gap element 4 screwed into the piece of wood 6.
  • the penetration of the gap element 4 in the piece of wood 6 can also be supported by a force applied by the machine boom on the nip element 4 compressive force. Due to the penetration of the conical gap element 4 in the piece of wood 6, the piece of wood 6 is split. In this case, depending on the nature of the piece of wood 6, more and fewer fibers 28 remain between the split parts of the piece of wood 6, which can still hold the parts quite firmly.
  • the splitting element 4 is pulled out of the piece of wood 6 by being lifted upwards by the machine extension.
  • the extraction of the gap element 4 from the piece of wood 6 can be supported by unscrewing the gap element 4 from the piece of wood 6, wherein the gap element 4 is rotated for this purpose in a screwing opposite direction of rotation.
  • the parts still press firmly on the gap element 4.
  • the friction of the parts on the ground, whereby the parts can rotate with the rotational movement of the gap element 4 decreases , Such a Mitburnish is prevented by the stop 8, to which the piece of wood 6 strikes.
  • the splitting element 4 can be lifted out of the split piece of wood 6 and turned out, the parts of the piece of wood 6 remaining substantially fixed by the stop 8 and the tip 20 of the splitting element 4.
  • the wood splitting device 2 can be brought into a cutting position as shown in FIG.
  • the working head 12 is rotated by about 75 ° counterclockwise, so that the stop 8 is positioned by the working head 12 so that it is arranged substantially below the gap element 4 and the dividing means 10 comes in a substantially horizontal position.
  • the wood column device 2 can now be moved by the machine boom in a direction 32 upwards and in a direction 34 downward, so that the dividing means 10 can be retracted vertically movable pushing or hitting between the parts of the piece of wood 6.
  • the fibers 28 are hereby split, torn or torn from one of the parts, so that the two parts of the split piece of wood 6 can be completely divided and fall apart.
  • the dividing means 10 has a cross section as shown in FIG. 3, which in the horizontal position of the dividing means 10 narrows down in the direction 34 and ends in an edge 36. The cutting of the piece of wood 6 is facilitated by the lower knife-shaped edge 36, can be cut with the between the wood parts.
  • the working head 12 of the wood splitting device 2 is rotated slightly less than half a turn clockwise, so that a receiving device 44 for receiving the wood gripper 14 (Figure 5) down and about 20 ° inclined to a perpendicular imaginary Line is aligned.
  • the working head 12 is thus movable so that the gap element 4, the stop 8 and the receiving device 44 and the wood gripper 14 are pivotable in a working position.
  • the wood gripper 14 For gripping the parts of the wood piece 6, the wood gripper 14 comprises pliers 40, which are arranged hydraulically movable in a holding device 42. To enable easy gripping of the parts of the wood piece 6, the holding device 42 is mounted gimbal rotatably. The rotation is done by the hydraulically driven rotator 44 ( Figure 5), which is connected by not shown in the figures cardan shafts and universal joints with the holding device 42.
  • the drive means with the two hydraulic motors 22, 24 is shown in FIG.
  • the hydraulic motors 22, 24 are operated hydraulically, with pressurized hydraulic oil from a hydraulic pump 48 arranged on an engine, for example a hay excavator, through a conduit 50 through conduits 46, only one of which is shown in FIGS the hydraulic motors 22, 24 is guided.
  • the hydraulic motors 22, 24 are connected to each other via gears 52, 54, wherein the gear 52 is arranged on a shaft which is connected to the gap element 4.
  • Also supplied from the compressor with hydraulic oil is the rotator 44, which is a part of the receiving device 38.
  • the hydraulic motors 22, 24 are operable both in series and in parallel.
  • hydraulic oil compressed by the hydraulic pump 48 is supplied through a line 56 to the hydraulic motor 22 and drives it.
  • the hydraulic oil leaving the hydraulic motor 22 then flows to the valve 50, which is connected as shown in FIG.
  • the hydraulic oil thus passes to the hydraulic motor 24 and also drives this and is then returned to the hydraulic pump 48.
  • this cycle flows a lot of hydraulic oil, for example, 20 liters / minute, one behind the other by both hydraulic motors 22, 24, whereby they are operable in a fast operation.
  • valve 50 In a parallel operation of the hydraulic motors 22, 24, the valve 50 is connected as shown in Figure 7.
  • the hydraulic oil pressurized in the hydraulic pump 48 is supplied through the conduit 56 to both the hydraulic motor 22 and the hydraulic motor 22 promptly to the valve 50.
  • the hydraulic oil bypassing the hydraulic motor 22 is sent to the hydraulic motor 24 through the valve 50.
  • only half of the hydraulic oil flows through each of the hydraulic motors 22, 24, but these hydraulic motors each have the full pressure generated by the hydraulic pump 48, which is why such operation is suitable for slow and vigorous operation of the gap member 4.
  • the circuit shown in Figures 6 to 8 is given by way of example only and may, of course, be implemented in a different manner which allows operation of the hydraulic motors 22, 24 in parallel and in series.
  • the gap element 4 has in its interior a lubricant container 58, which can be filled through a filling opening 60 with a lubricant.
  • the lubricant passes through a filling channel 62 into the lubricant container 58 and from there passes through a lubricant channel 64 into a gap 68.
  • This gap 68 is arranged between the substantially conical head element 70 of the gap element 4 and the substantially frusto-conical body element 72 of the gap element 4.
  • the head element 70 is fastened in the body element 72 with the aid of a fastening element 74, the gap 68 being formed by a number of channels extending in a star-shaped manner from the fastening element 74.
  • a Gleitschkanal 64 protrudes from above, so that the Lubricant may pass from the lubricant reservoir 58 through the lubricant channel 64 into each arm of the gap 68 between the body member 72 and the head member 70. From there, the lubricant is directed to exit ports 76, which form the end of each of the star-shaped channels of the gap 68. The lubricant thus reaches the outer surface 78 of the gap element 4 and contributes to a slight penetration of the gap element 4 into a piece of wood 6 to be split.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Shovels (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Claims (19)

  1. Machine à fendre le bois (2) comportant une tête de travail (12), un moyen de liaison (18) pour relier la tête de travail (12) à un dispositif de positionnement (16) motorisé, un élément de fendage (4), un moyen d'entraînement pour l'entraînement en rotation de l'élément de fendage (4) et un butoir (8) permettant d'empêcher un entraînement en rotation d'une pièce de bois en cours de fendage (6) avec l'élément de fendage (4),
    caractérisée en ce que le moyen d'entraînement comprend au moins deux moteurs hydrauliques (22, 24) pouvant opérer en série.
  2. Machine à fendre le bois (2) selon la revendication 1,
    caractérisée en ce que le butoir (8) est positionnable sous l'élément de fendage (4).
  3. Machine à fendre le bois (2) selon la revendication 1 ou 2,
    caractérisée en ce que le butoir (8) est positionnable sous l'élément de fendage (4) grâce à un mouvement de rotation de la tête de travail (12).
  4. Machine à fendre le bois (2) selon l'une des revendications précédentes,
    caractérisée en ce que le butoir (8) présente un moyen de séparation (10) pouvant être mis en position horizontale.
  5. Machine à fendre le bois (2) selon la revendication 4,
    caractérisée en ce que le moyen de séparation (10) est déplaçable à la verticale.
  6. Machine à fendre le bois (2) selon la revendication 4 ou 5,
    caractérisée en ce que le moyen de séparation (10) présente dans la position horizontale une section transversale diminuant vers le bas.
  7. Machine à fendre le bois (2) selon l'une des revendications précédentes,
    caractérisée en ce que le moyen d'entraînement comprend deux moteurs hydrauliques (22, 24) pouvant opérer en parallèle.
  8. Machine à fendre le bois (2) selon la revendication 7,
    caractérisée en ce que les moteurs hydrauliques (22, 24) peuvent opérer aussi bien en série qu'en parallèle.
  9. Machine à fendre le bois (2) selon la revendication 8,
    caractérisée par une vanne (50) permettant de commuter entre une opération en parallèle et une opération en série.
  10. Machine à fendre le bois (2) selon l'une des revendications précédentes,
    caractérisée en ce que la tête de travail (12) est déplaçable par rapport au dispositif de positionnement (16), et en ce que le moyen d'entraînement, l'élément de fendage (4) et le butoir (8) sont agencés au niveau de la tête de travail (12).
  11. Machine à fendre le bois (2) selon l'une des revendications précédentes,
    caractérisée en ce que le butoir (8) est déplaçable par rapport à l'élément de fendage (4) et en ce que le butoir (8) peut être utilisé conjointement à l'élément de fendage (4) pour servir de grappin à bois.
  12. Machine à fendre le bois (2) selon la revendication 11,
    caractérisée en ce que le butoir comprend au moins deux bras de butée qui sont formés courbés notamment par rapport à l'élément de fendage (4).
  13. Machine à fendre le bois (2) selon la revendication 12,
    caractérisée en ce que la tête de travail (12) comprend un dispositif de logement (38) dans lequel peut se loger un grappin à bois (14).
  14. Machine à fendre le bois (2) selon la revendication 13,
    caractérisée en ce que le dispositif de logement (38) présente un rotateur (44).
  15. Machine à fendre le bois (2) selon la revendication 13 ou 14,
    caractérisée en ce que le dispositif de logement (38) peut être positionné au moins partiellement tourné vers le bas grâce à un mouvement de rotation de la tête de travail (12).
  16. Machine à fendre le bois (2) selon l'une des revendications précédentes,
    caractérisée en ce qu'un réservoir de lubrifiant (58) est relié à l'élément de fendage (4).
  17. Machine à fendre le bois (2) selon la revendication 16,
    caractérisée en ce que le réservoir de lubrifiant (58) est agencé à l'intérieur de l'élément de fendage (4).
  18. Machine à fendre le bois (2) selon la revendication 16 ou 17,
    caractérisée en ce que l'élément de fendage (4) présente un orifice de sortie (76) grâce auquel se forme une liaison entre le réservoir de lubrifiant (58) et la surface extérieure (78) de l'élément de fendage (4).
  19. Machine à fendre le bois (2) selon la revendication 18,
    caractérisée en ce que l'élément de fendage (4) comprend un élément de tête (70) essentiellement conique et un élément de corps (72) essentiellement tronconique et l'orifice de sortie (76) est disposé entre l'élément de tête (70) et l'élément de corps (72).
EP20030012761 2002-09-02 2003-06-05 Machine de fendage de bois Expired - Lifetime EP1393870B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200330507T SI1393870T1 (sl) 2002-09-02 2003-06-05 Naprava za cepljenje lesa
AT03012761T ATE334789T1 (de) 2002-09-02 2003-06-05 Holzspaltevorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT13052002 2002-09-02
AT13052002 2002-09-02

Publications (2)

Publication Number Publication Date
EP1393870A1 EP1393870A1 (fr) 2004-03-03
EP1393870B1 true EP1393870B1 (fr) 2006-08-02

Family

ID=31192781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030012761 Expired - Lifetime EP1393870B1 (fr) 2002-09-02 2003-06-05 Machine de fendage de bois

Country Status (2)

Country Link
EP (1) EP1393870B1 (fr)
DE (1) DE50304437D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058085B4 (de) * 2004-12-06 2010-03-11 Stummer, Günter Holzzange mit Spaltvorrichtung
EP1690657A1 (fr) * 2005-02-12 2006-08-16 LASCO Heutechnik GmbH Dispositif à fendre le bois
US7740033B2 (en) * 2006-10-16 2010-06-22 Peterson Pacific Corporation Debris splitting grinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315534A (en) * 1980-07-14 1982-02-16 Arnold Industries, Inc. Wood splitter
FR2715098A1 (fr) * 1994-01-19 1995-07-21 Lieutard Marie France Fendeur de bûches motorisé.
FR2758491B1 (fr) * 1997-01-23 1999-04-16 Roger Jose Louis Alonso Machine a fendre le bois en grande longueur

Also Published As

Publication number Publication date
EP1393870A1 (fr) 2004-03-03
DE50304437D1 (de) 2006-09-14

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