EP0024993A1 - Holzzerkleinerungsmaschine - Google Patents

Holzzerkleinerungsmaschine Download PDF

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Publication number
EP0024993A1
EP0024993A1 EP80401225A EP80401225A EP0024993A1 EP 0024993 A1 EP0024993 A1 EP 0024993A1 EP 80401225 A EP80401225 A EP 80401225A EP 80401225 A EP80401225 A EP 80401225A EP 0024993 A1 EP0024993 A1 EP 0024993A1
Authority
EP
European Patent Office
Prior art keywords
blade
aforementioned
drum
groove
crusher according
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.)
Granted
Application number
EP80401225A
Other languages
English (en)
French (fr)
Other versions
EP0024993B1 (de
Inventor
Marcel Luc Amédée Paulve
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT80401225T priority Critical patent/ATE3249T1/de
Publication of EP0024993A1 publication Critical patent/EP0024993A1/de
Application granted granted Critical
Publication of EP0024993B1 publication Critical patent/EP0024993B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/186—Axially elongated knives
    • 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
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the invention generally relates and essentially relates to a grinding device or grinder intended more particularly to be used for brush cutting and cleaning of wood.
  • this type of shredder uses the known principle of wood planers, that is to say the use of blades mounted tangentially to a rotating cylinder.
  • One of the problems is to fix the blades on the cylinder.
  • Certain devices provide for the fixing of the blades using longitudinal grooves. This process is however very expensive because it requires not only the grooving of the grooves of the rotating cylinder, but also the faithful reproduction of these grooves on the blades themselves.
  • Other devices use stop screws placed at the bottom of the blade-holder housings provided in the rotating cylinder. As a result, however, the exchange of the blades, either for sharpening or for a pure and simple change, requires meticulous and long work, which is difficult for a forest worker to carry out.
  • the invention aims to overcome these drawbacks and proposes a crusher which is characterized by a cutting device constituted by a blade, a counter blade against which abuts a face of the blade, and a clamping device carried by the counter blade for pressing the other face of the blade against one of the longitudinal side walls of the groove forming the blade housing and provided at the periphery of the rotating cylinder, said clamping device coming to bear pressed against the other longitudinal side wall of the groove.
  • the clamping device is constituted by at least one screw, partly screwed into a threaded bore of the counter blade and whose free end situated outside the counter blade comes pressing pressed against the adjacent longitudinal side wall of the groove forming a housing.
  • a device for adjusting the height of the blade a device which is carried by the counter blade and consisting of at least two adjustable screws on the ends of which rests the surface d end of the blade opposite its cutting end.
  • the adjustment of the blade height adjustment screws is carried out before mounting in the associated housing of the rotating cylinder of the mill.
  • the axis of the rotating drum is aligned with the power take-off of a motor member such as a tractor which pulls the crusher.
  • the crusher 1 according to the invention comprises a rotating cylinder or drum 2 rotatably mounted on a shaft 3 itself supported in rotation by the frame or casing 4 of the crusher 1.
  • the drum 2 is provided, on its periphery, with parallel longitudinal grooves 5, for example regularly spaced from one another and four in number in the example shown. Each groove forms a housing for a cutting device 6 which will be described later.
  • Each groove 5 is offset by an angle ⁇ , in the direction of rotation of the drum 2, with respect to a groove which would be located radially with respect to the drum 2. This angle is between approximately 30 and 45 °.
  • each groove 5 is mounted a removable cutting device 6 comprising a lamp 7 and a counter blade 8 which will be described in more detail with reference to FIGS. 2 to 4.
  • a blade 7 is in the form of a rectangular beveled plate on one of its longitudinal ends to form a cutting edge.
  • the counter blade 8 is in the form of a substantially parallelepipedal block 9 extending substantially over the same length as the blade 7.
  • This counter blade has on one of its longitudinal edges a flange 6 at 90 ° s extending over the entire length of the block 9 by having a width which corresponds substantially to that of the blade 7.
  • Each counter-blade 8 carries on the one hand a device for clamping the blades 7 and a device for adjusting the height of these blades 7.
  • the clamping device consists of at least two screws 11, partly screwed into two threaded orifices 12 in the block 9 of the counter blade 8.
  • Each device for adjusting the height of the blade 7 consists of at least two screws 13 mounted respectively in two threaded holes 14 of the flange 10 of the counter blade 8. It is important to note that the screws 13 protrude on either side of the rim 10 and also come to be screwed respectively into two threaded blind half-bores 15 machined in the adjacent longitudinal face of the block 9 of the counter blade 8 being axially aligned with threaded holes 14.
  • the first operation consists in introducing the counter blade 8 inside the groove 5, so that the body 9 of the counter blade 8 is mounted parallel to the external longitudinal side wall 23 of the associated groove 5, bearing on the bottom of the groove 5 by its surface end extended by the rim 10 which will itself be in contact with the side wall 15.
  • the first operation consists in introducing the counter blade 8 inside the groove 5, so that the body 9 of the counter blade 8 is mounted parallel to the external longitudinal side wall 23 of the associated groove 5, bearing on the bottom of the groove 5 by its surface end extended by the rim 10 which will itself be in contact with the side wall 15.
  • a guide pin 17 is fitted into the bottom of the groove 5 and is freely received by its free end in an orifice 18 provided in the flange 10 of the counter blade 8 (FIG. 3), this orifice 18 being for example provided between the two orifices 14 of the rim 10 of the counter blade 8.
  • each screw 11 is example secured to a nut 19 provided towards the free end of the screw 11 not introduced into the associated orifice 12 of the counter blade 8.
  • This nut 19 makes it possible to screw the screw in a direction tending to bring out the screw 11 from its orifice 12 so as to bring the free end of the screw 11 into pressed contact with the other longitudinal side surface 20 or an inner side surface of the groove 5.
  • the inner lateral surface 20 is provided with a longitudinal groove 21 intended to receive the adjacent end of the fixing screws 11 so as to ensure better tightening.
  • the opposite reaction by the fixing screws 11 ensures the clamping of the counter blade 8 and consequently of the blade 7 against the external longitudinal side surface 23 of the groove 5.
  • adjustment screws 13 for the height of the blade 7 are advantageously locked in position by means, for example, of pressure screws 22 mounted perpendicularly to the adjustment screws 13 so as to come into contact with one end pressed against them.
  • Each pressure screw 22 is supported by the counter blade 8, for example being screwed into a threaded bore of the counter blade 8 and opening, at one end, into the corresponding threaded orifice 14 of the flange 10 into which the screw is screwed. associated adjustment screw 13.
  • the adjustment template 25 comprises a base 26 surmounted by a T-structure 27.
  • each counter blade 8 and its associated blade 7 are mounted on the template 25 between its base 26 and one of the lateral branches of the structure en T 27.
  • the adjusting screws 13 are adjusted so that the blade 7 comes, at its cutting edge, in contact with the lower surface 28 or 29 of the lateral branches of the T-structure 27.
  • the lower surfaces 28 and 29 of the two branches of the T-structure 27 are not at the same height relative to the base 26, which allows two different adjustments for the blades 7.
  • the counter blade 8 which supports the adjusted adjustment screws 13 and the clamping screws 11, and the blade are mounted in the associated groove 5 of the drum 2.
  • the space delimited between the drum 2 and the frame 4 of the crusher 1 communicates on the one hand with an inlet duct 30 by which the elements to be ground are introduced, and a duct d 'evacuation 31 to eject the crushed products to send them in a truck or a trailer for example.
  • the crusher 1 also comprises a part 32 serving as a support for cutting.
  • This part 32 is located in the vicinity of the inlet duct 30 and is supported by a support 33 secured to the frame or casing 4 of the crusher. It should be noted that this plate-shaped part 32 is held on its support 33 by at least one screw 34 which is not located in the axis of symmetry of the part 32.
  • the part 32 can be mounted in two positions by simple 180 ° turning of the part 32 with respect to its support 33. Without this arrangement, the cutting edge of the blades 7 could come into contact with this bearing part 32.
  • the elements to be ground are introduced by the inlet duct 30, they fall between the support plate 32 and the drum 2 which, in its rotation will crush the elements at the level of the support plate 32.
  • the PTO such as a drive shaft 35 driven in rotation by a drive member (not shown) rotates the drum 2 via a transmission 36 allowing the drum 2 to rotate faster than the shaft 35 .
  • the shaft 3 of rotation of the drum projects from either side of it.
  • the shaft 3 is supported in rotation by means of bearings 37, for example rolling bearings supported by the frame 4 of the casing.
  • the drum 2 is secured to the shaft 3 by means of keys 38.
  • the transmission 36 consists of a first toothed pulley 39 mounted idly, by means of a rolling bearing 40, on the shaft 3 in the vicinity of its end adjacent to the drive shaft 35.
  • the pulley 39 is made integral in rotation with the shaft 35 by means of a Cardan joint 41.
  • the pulley 39 drives in rotation a second toothed pulley 42 of smaller diameter by means of transmission belts 43.
  • This pulley 42 is rotationally secured, by a valve 44, to a shaft 45 mounted parallel to the shaft 3 and supported in rotation by the crusher housing 4 1.
  • the shaft 45 supports a third toothed pulley 46 which has substantially the same diameter as the toothed pulley 39.
  • the pulley 46 is rotatably connected to the shaft 45 by means of a key 47.
  • This third pulley 46 rotates a fourth toothed pulley 48 by means of belts 49.
  • This pulley 48 is mounted for rotation, by a key 52, from the shaft 3 towards the end thereof opposite the first pulley 39.
  • the pulley 48 has substantially the same diameter as the second pulley 42.
  • This transmission 36 mounted between the control shaft 35 and the drum 2 is therefore constituted, in this embodiment, by a double return which allows the shaft 35 and the drum 2 to rotate in the same direction but at speeds different by being substantially axially aligned, which makes it possible to avoid any imbalance between the tractor member (not shown) and the crusher 1.
  • two tensioning devices 50 are provided which allow the distance between the shaft 3 supporting the drum 2 and the shaft 45 to be varied which supports the intermediate pulleys 42 and 46,
  • the double gear can be replaced by a planetary gear 36 'mounted between the universal joint 41 and the adjacent end of the shaft 3 substantially axially aligned with the shaft 35.
  • the mill according to the invention is therefore equipped with cutting devices 6 which are easily mounted in the housings 5 of the drum, with the blades 7 already adjusted in height by means of the screws 13 carried by the counterblades 8.
  • cutting devices 6 which are easily mounted in the housings 5 of the drum, with the blades 7 already adjusted in height by means of the screws 13 carried by the counterblades 8.
  • the length of which may have varied due to work incidents (chipping or other)
  • it suffices to dismantle the blade 7 considered and its associated counter blade 8 and to carry out a new adjustment of the blade by means of the adjustment template 25. Under these conditions, the assembly and disassembly times of the blades 7 and the adjustment times are considerably reduced and the handling operations facilitated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Amplifiers (AREA)
EP80401225A 1979-08-30 1980-08-27 Holzzerkleinerungsmaschine Expired EP0024993B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80401225T ATE3249T1 (de) 1979-08-30 1980-08-27 Holzzerkleinerungsmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7921797A FR2464099A1 (fr) 1979-08-30 1979-08-30 Broyeur forestier
FR7921797 1979-08-30

Publications (2)

Publication Number Publication Date
EP0024993A1 true EP0024993A1 (de) 1981-03-11
EP0024993B1 EP0024993B1 (de) 1983-05-11

Family

ID=9229222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401225A Expired EP0024993B1 (de) 1979-08-30 1980-08-27 Holzzerkleinerungsmaschine

Country Status (6)

Country Link
US (1) US4390134A (de)
EP (1) EP0024993B1 (de)
AT (1) ATE3249T1 (de)
CA (1) CA1146516A (de)
DE (1) DE3063142D1 (de)
FR (1) FR2464099A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144096A1 (de) * 1983-09-07 1985-06-12 Autobedrijf de Beemd B.V. Holzzerspäner
EP0156934A1 (de) * 1984-04-02 1985-10-09 Fritz Vogelmann Messerkopf für die Bearbeitung von nichtmetallischen Werkstücken
US5226607A (en) * 1990-07-28 1993-07-13 Lescha Maschinenfabrik Gmbh & Co. Kg Chopper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI944004A0 (fi) * 1994-09-01 1994-09-01 Nummek Automatic Oy Bettkonstruktion foer kross
CA2319838A1 (fr) 2000-09-15 2002-03-15 Louis-Philippe Nault Procede et appareil pour le debroussaillage sylvicole

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB119175A (en) * 1918-01-28 1918-09-26 Ralph Miller Improvements relating to Milling and like Cutting Tools.
US3430873A (en) * 1966-11-04 1969-03-04 Rader Pneumatics Inc Wood fractionator
DE2353371A1 (de) * 1973-10-25 1974-11-07 Jenz Masch & Fahrzeug Hans Messertrommel, insbesondere fuer hackmaschinen zur zerkleinerung von abfaellen
DE2431349A1 (de) * 1974-06-29 1976-01-15 Kloeckner Kg Geb Messerbefestigung an zerkleinerungsmaschinen mit umlaufenden schneidmessern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059384A (en) * 1961-01-03 1962-10-23 Deere & Co Cutterhead for agricultural machines and the like
US3378053A (en) * 1966-02-23 1968-04-16 Case Co J I Cutter head for forage harvesters
FR2284274A1 (fr) * 1974-09-13 1976-04-09 Deere John Cie Francaise Ramasseuse-hacheuse
US4019396A (en) * 1975-07-07 1977-04-26 Frechette Alphonse A Powered wheel system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB119175A (en) * 1918-01-28 1918-09-26 Ralph Miller Improvements relating to Milling and like Cutting Tools.
US3430873A (en) * 1966-11-04 1969-03-04 Rader Pneumatics Inc Wood fractionator
DE2353371A1 (de) * 1973-10-25 1974-11-07 Jenz Masch & Fahrzeug Hans Messertrommel, insbesondere fuer hackmaschinen zur zerkleinerung von abfaellen
DE2431349A1 (de) * 1974-06-29 1976-01-15 Kloeckner Kg Geb Messerbefestigung an zerkleinerungsmaschinen mit umlaufenden schneidmessern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144096A1 (de) * 1983-09-07 1985-06-12 Autobedrijf de Beemd B.V. Holzzerspäner
US4702424A (en) * 1983-09-07 1987-10-27 Autobedrijf De Beemd Device for chipping wood-like material
EP0156934A1 (de) * 1984-04-02 1985-10-09 Fritz Vogelmann Messerkopf für die Bearbeitung von nichtmetallischen Werkstücken
US5226607A (en) * 1990-07-28 1993-07-13 Lescha Maschinenfabrik Gmbh & Co. Kg Chopper

Also Published As

Publication number Publication date
FR2464099A1 (fr) 1981-03-06
DE3063142D1 (en) 1983-06-16
CA1146516A (en) 1983-05-17
US4390134A (en) 1983-06-28
ATE3249T1 (de) 1983-05-15
EP0024993B1 (de) 1983-05-11
FR2464099B1 (de) 1984-12-28

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