EP0146820B1 - Broyeur de copeaux - Google Patents

Broyeur de copeaux Download PDF

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Publication number
EP0146820B1
EP0146820B1 EP84114517A EP84114517A EP0146820B1 EP 0146820 B1 EP0146820 B1 EP 0146820B1 EP 84114517 A EP84114517 A EP 84114517A EP 84114517 A EP84114517 A EP 84114517A EP 0146820 B1 EP0146820 B1 EP 0146820B1
Authority
EP
European Patent Office
Prior art keywords
comminuting
housing
rotor
turnings
comminuting device
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
Application number
EP84114517A
Other languages
German (de)
English (en)
Other versions
EP0146820A1 (fr
Inventor
Richard Steimel
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
Publication of EP0146820A1 publication Critical patent/EP0146820A1/fr
Application granted granted Critical
Publication of EP0146820B1 publication Critical patent/EP0146820B1/fr
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
    • 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

Definitions

  • the invention relates to a chip crusher with a rotor arranged drivably in the crusher housing, on the inlet side of which at least one pre-crushing arm is arranged, the pre-crushing knife cooperates with crushing bars arranged on the crusher housing and on the outlet side several rotor knives of a fine crusher distributed over the circumference, the breaking edges of which are arranged interact with the breaking edges of several stator knives distributed over the circumference in the crusher housing.
  • a chip breaker of this type is known from DE-OS 2547980.
  • the crusher housing is U-shaped or trough-shaped in cross section at right angles to the rotor axis, and the upper flat side of the crusher housing is designed as an openable lid.
  • the inner wall of the crusher housing runs essentially parallel to the rotor axis.
  • the chip breaker has no restriction in the direction of the material flow.
  • the rotor is driven by a slip clutch so that nothing is destroyed if the rotor is overloaded or blocked.
  • the drive is controlled so that when the rotor is blocked, the direction of rotation is changed so that the rotor can work freely again.
  • the present invention has for its object to provide a chip breaker in which the removal of a coarse part causing a blockage of the rotor is made possible quickly and without effort.
  • this object is achieved according to the invention in that at least one stator knife in the crusher housing is guided in a radially movable manner from an operating position into an opening position which releases a large part outlet.
  • a coarse part for example a rod end piece, blocks the rotor in the chip breaker according to the invention because it has become jammed between the rotor knife and the stator knife, the coarse part is removed by changing the direction of rotation of the rotor and releasing the coarse part outlet.
  • the radially movable stator knife is held in the working position by a drive, for example by a hydraulic cylinder.
  • a drive for example by a hydraulic cylinder.
  • the coarse part outlet is advantageously arranged at the deepest point of the crusher chamber, namely in the region of the lowest casing surface line.
  • the 1 has a crusher housing 1, in which a rotor 2 is drivably mounted.
  • the rotor 2 has a pre-breaking arm 3 with a pre-breaking knife 4, the breaking edges of which cooperate with the breaking edges of breaking bars 5, which are fixedly arranged in the breaker housing 1.
  • rotor knives 6 of a fine crusher are arranged on the rotor, the breaking edges of which cooperate with the breaking edges of a plurality of stator knives 7 distributed in the crusher housing 1 over the circumference.
  • the chips to be crushed pass from the filling funnel 8 into the crusher housing 1, where they are gripped by the pre-crushing arm 3 and broken between the crushing bars 5 and the pre-crushing knife 4 sliding past them at a distance.
  • the block 14 is conical and is pressed into a correspondingly conical guide 17 which is placed on the crusher housing 1 and which absorbs the shear forces which act on the stator blades 7 '.
  • the stator blades 7 ' are blocked hydraulically by means of the piston-cylinder unit 15. If a coarse part causes a blockage of the rotor, this coarse part can be removed from the crusher chamber by opening the coarse part outlet and reversing the drive of the rotor. The coarse part reaches the outlet chute 11 via the coarse part outlet 10 '. The stator knives 7' are then pressed back into their working position and the chip breaker can resume normal operation.
  • the rotor rotates, for example, at a speed of 60 to 80 rpm.
  • the rotor drive is controlled to reverse three to four times. If the rotor has not yet cleared itself, the piston-cylinder drive 15 is given an impulse to open the coarse part outlet 10 'by pulling back the radially movable stator blades 7'. The rotor is then reversibly driven at a speed of 2 to 4 rpm, for example. It has been shown that in most cases the coarse part causing the blocking moves to the open coarse part outlet 10 'and leaves the crusher chamber.
  • the chip crusher must be switched off and the lid 12 opened towards the crusher chamber.
  • signal generators are attached to this chip breaker, which give an optical and acoustic signal if, after opening the coarse part outlet 10 'and after the motor has been reversed several times, the rotor has not yet cleared itself.
  • the housing cover 12 can be opened with a handle and the crusher chamber can be cleared by hand.
  • the rotor 2 is fastened to a rotor shaft which is mounted in a frame 13 via a slide bearing and a rolling element bearing.
  • the outlet chute 11 is arranged between the crusher housing 1 and the frame 13.
  • a co-rotating wiper 30 is arranged on the underside of the rotor and pushes the broken chips out of the outlet space 10 so that they reach the outlet chute 11.
  • stator knife 7 ' is arranged to be radially movable.
  • This stator knife 7 ' is attached via a block 14 to a rigid lever 18 which is pivotally mounted on the crusher housing 1 about the axis 19 and which is moved by a piston-cylinder drive 15 via the piston rod 16 into an open position and into a closed position can. So that the shear forces acting on the stator knife 7 'during chip breaking do not have to be absorbed by the bearing 19, the stator knife 7' and the block 14 connected to it are guided in a guide 17 which is placed on the crusher housing 1.
  • the length of the lever 18 corresponds approximately to the diameter of the chip breaker, so that the cylinder-piston drive 15, which is supported against a bracket 20, can be arranged on one side of the chip breaker.
  • stator knives 7 ′ are arranged to be radially movable, but also the wall 24 of the crusher housing 1 adjoining this stator knife 7 ′ and a part 23 of the ceiling 22 of the outlet mouth 21.
  • the radially displaceable part 24 of the wall of the crusher housing 1 and the displaceable part 23 of the ceiling 22 of the outlet mouth 21 form with guide walls 26 a carriage 25 which is guided in a guide housing 27 so as to be displaceable radially to the rotor axis 9.
  • this guide housing 27 there is the piston-cylinder unit 15, the cylinder of which is rigidly attached to a wall of the housing 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (7)

1. Broyeur de copeaux du genre comportant un rotor à entraînement (2) disposé à l'intérieur du carter (1), présentant sur le côté aspirant au moins un bras préconcasseur (3) dont le couteau préconcasseur (4) coopère avec des mâchoires concassantes (5) disposées sur le carter, et sur le côté d'évacuation plusieurs couteaux mobiles (6) répartis sur le pourtour d'un broyeur, dont les bords concassants coopèrent avec les bords concassants de plusieurs couteaux fixes (7) répartis sur le pourtour à l'intérieur du carter (1), caractérisé en ce que au moins un couteau fixe (7') se déplace à l'intérieur du carter (1) de sa position de travail radialement vers une position d'ouverture débloquant l'évacuation (10') de fragments de taille importante.
2. Broyeur de copeaux selon la revendication 1, caractérisé en ce que l'axe (9) du rotor (2) est incliné verticalement de manière connue en soi, et en ce que l'évacuation (10') de fragments de taille importante avec le ou les couteaux fixes (7') radialement mobiles est disposée au niveau de la ligne inférieure du carter et au-dessus du collecteur d'évacuation (21).
3. Broyeur de copeaux selon la revendication 1 ou 2, caractérisé en ce que le couteau fixe (7') mobile est fixé à un bloc (14) introduit dans un dispositif de guidage (17) monté sur le carter (1).
4. Broyeur de copeaux selon la revendication 3, caractérisé en ce que le bloc (14) et le dispositif de guidage (17) présentent des surfaces adhérentes (28) qui convergent en direction du serrage.
5. Broyeur de copeaux selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le couteau fixe (7') radialement mobile est relié à la tige de piston (16) d'une unité vérin-tige (15) à alimentation hydraulique.
6. Broyeur de copeaux selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le couteau fixe (7') radialement mobile est fixé à un levier (18), fixé pivotant sur le carter (1), déplaçable par l'intermédiaire d'un entraînement (15) d'une position de fermeture vers une position d'ouverture et vice versa.
7. Broyeur de copeaux selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les couteaux fixes (7') radialement mobiles se déplacent radialement avec.une partie. (24) de la paroi du carter (1) entourant les couteaux fixes (7') et avec une partie (23) du plafond (22) du collecteur d'évacuation (21).
EP84114517A 1983-12-13 1984-11-30 Broyeur de copeaux Expired EP0146820B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8335662U 1983-12-13
DE19838335662U DE8335662U1 (de) 1983-12-13 1983-12-13 Spaenebrecher

Publications (2)

Publication Number Publication Date
EP0146820A1 EP0146820A1 (fr) 1985-07-03
EP0146820B1 true EP0146820B1 (fr) 1987-03-04

Family

ID=6759787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114517A Expired EP0146820B1 (fr) 1983-12-13 1984-11-30 Broyeur de copeaux

Country Status (4)

Country Link
US (1) US4903904A (fr)
EP (1) EP0146820B1 (fr)
JP (1) JPS60209264A (fr)
DE (2) DE8335662U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3116240B2 (ja) * 1991-08-20 2000-12-11 株式会社大川原製作所 攪拌混合造粒方法並びに装置
WO1993020038A1 (fr) * 1992-04-03 1993-10-14 Gist-Brocades N.V. N-acylation selective d'amino-alcools
DE4239342C2 (de) * 1992-11-23 1996-05-09 Fritz Breckner Zerkleinerungsmaschine zum Mahlen oder Häckseln von industriellen und landwirtschaftlichen Produkten und Abfällen
DE4330882A1 (de) * 1993-09-13 1995-03-16 Klaus Lanner Vorrichtung zum Zerkleinern von Stahl- oder Metallspänen
US5722604A (en) * 1995-04-18 1998-03-03 Dudley; Russell D. Metal scrap shredder
US5769337A (en) * 1997-01-14 1998-06-23 Abilfida (Chiasso) S.A. Waste container made of synthetic material with means of reducing the volume of said waste
US7748655B2 (en) * 2007-06-15 2010-07-06 Riley Power, Inc. Crusher block assembly for particulate size reduction system
CN112302119B (zh) * 2020-08-24 2022-04-22 宁波新冠联机电有限公司 一种能打长纤维食物垃圾的处理机
DE102021126898B3 (de) 2021-10-17 2023-03-23 Thomas Spyra Zerkleinerer zum Zerkleinern von Spänen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703970A (en) * 1971-02-23 1972-11-28 Benson Ind Ltd Apparatus for treating waste material
DE2547980A1 (de) * 1975-10-27 1977-04-28 Richard Steimel Spaenebrecher
JPS5823142A (ja) * 1981-07-31 1983-02-10 Toshiba Corp 陰極構体の製造方法

Also Published As

Publication number Publication date
EP0146820A1 (fr) 1985-07-03
JPS60209264A (ja) 1985-10-21
DE3462437D1 (en) 1987-04-09
US4903904A (en) 1990-02-27
DE8335662U1 (de) 1984-03-08

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