EP0184557A2 - Shredder mit rotierenden Achsen - Google Patents

Shredder mit rotierenden Achsen Download PDF

Info

Publication number: EP0184557A2
Authority: EP; European Patent Office
Prior art keywords: shredder according; shredder; cavity; spacers; cutting
Prior art date: 1984-12-04
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

EP85810572A

Other languages

English (en)

French (fr)

Other versions

EP0184557B1 (de

EP0184557A3 (en

Inventor

Guelfo Bubani

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.)

Industrielle de la Doux Sa Ste

Original Assignee

Industrielle de la Doux Sa Ste

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.)

1984-12-04

Filing date

1985-12-03

Publication date

1986-06-11

1985-12-03 Application filed by Industrielle de la Doux Sa Ste filed Critical Industrielle de la Doux Sa Ste

1985-12-03 Priority to AT85810572T priority Critical patent/ATE53512T1/de

1986-06-11 Publication of EP0184557A2 publication Critical patent/EP0184557A2/de

1988-07-06 Publication of EP0184557A3 publication Critical patent/EP0184557A3/fr

1990-06-13 Application granted granted Critical

1990-06-13 Publication of EP0184557B1 publication Critical patent/EP0184557B1/de

2005-12-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- B02C18/182—Disc-shaped knives

Definitions

the present invention relates to a shredder with rotary shafts, comprising several cutting rings mounted parallel to each other on each shaft and separated by spacers.
shredders In which the materials to be treated pass between two parallel shafts provided with shredding rings rotating in opposite directions so as to grind and lacerate this waste.
the cutting or shredding rings consist of integral parts of annular shape, mounted on the drive shafts, parallel to each other and separated by spacers.
This traditional construction method has a major drawback, due to the fact that the replacement of one of the cutting rings requires the complete disassembly of the shredder. Indeed, if a central cutting ring is damaged, the whole installation must be put to rest, the shredder must be removed and all the cutting rings, even in good condition, placed on one side of the damaged ring must be removed from the shaft to allow replacement of the damaged ring.
the present invention proposes to overcome this drawback by producing a shredder as mentioned above, in which the replacement of any cutting ring can be carried out very easily without requiring the complete dismantling of the installation.
the shredder according to the invention is characterized in that the cutting rings are constituted by at least two elements assembled by keying members.
the keying members comprise two identical tangential keys, the surface of which in térieur forms a ramp of keying and whose external surface has the shape of a dihedral with reentrant angle.
the ring elements preferably each have, along their joining edge, a recess of substantially trapezoidal section, arranged in such a way that when the ring elements are juxtaposed, the recesses are adjacent and form a cavity limited by surfaces complementary to the external surfaces of the keys engaged in this cavity.
the cavity is preferably through and is closed on each side by a protective flange.
the spacers are constituted by at least two annular segments welded together.
each cutting ring consists of two segments of identical shape.
the shredder comprises a central shaft 10 having a fluted peripheral surface 11, which drives a series of cutting rings 12 mounted parallel to each other and separated by spacers 13. These cutting rings have a annular shape and have, at their periphery, a series of teeth 14 intended to grind and shred the waste introduced into the shredder.
Their inner surface 15 has a grooved shape which is adapted to that of the peripheral surface of the shaft 10 so as to provide a drive connection between the shaft on the one hand, the cutting rings and the spacers of somewhere else.
the invention proposes to produce these cutting rings in two segments 12a and 12b juxtaposed along their joining edges 16 and 17.
the connection between the two elements d 'cutting rings is effected by means of keying members 18 which will be described in more detail below.
the keying members 18 consist of two identical tangential keys 19 and 20, placed in abutment one against the other along their inner surface, forming a keying ramp whose slope is between 1 and 10% and, preferably around 3%.
the outer surface of these keys has the shape of a dihedral 21 with a re-entrant angle.
Each of the elements 12a and 12b of the cutting rings 12 comprises, along the joining edge 16 or 17, a recess 22 of substantially trapezoidal section, which is arranged so that when the elements 12a and 12b are juxtaposed, these recesses 22 are adjacent and form a cavity 23 in which the keys 19 and 20 are housed, so that their dihedral-shaped outer surfaces 21 bear on the surfaces of complementary shape of the cavity 23.
the keying ramps of the tangential keys make it possible to ensure a locking in position of the elements 12a and 12b of the cutting rings 12.
the existence of the dihedral-shaped external surfaces and the coupling of these surfaces with the surfaces of complementary shape of the cavity 23 allow tangential clamping of the cutting ring elements against one another along the joining edges.
the spacers 13 are advantageously constituted by two semi-cylindrical sleeves 13a and 13b assembled along joining edges 24 and welded or connected by screws along a zone 25 common to their joining edges 24 and their peripheral surfaces.
Two protective flanges 26 and 27 of circular section close off the cavity 23 on either side of the two tangential keys 20 and 21.
the present invention is not limited to the embodiments described, but can undergo different modifications and come in different variants obvious to those skilled in the art.
the protective flanges constitute additional security which is not absolutely essential for the proper functioning of the system.
shredders comprising cutting rings formed of several segments assembled together, in particular by means of screws according to FR-A-2 257 346
the advantages of a shredder according to the invention reside in greater robustness of the elements of rings and their assembly members, great security with regard to loosening of these assembly members during operation, as well as better protection of the assemblies against soiling.

Landscapes

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

EP85810572A 1984-12-04 1985-12-03 Shredder mit rotierenden Achsen Expired - Lifetime EP0184557B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT85810572T ATE53512T1 (de)	1984-12-04	1985-12-03	Shredder mit rotierenden achsen.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8418584A FR2574001B1 (fr)	1984-12-04	1984-12-04	Dechiqueteur a arbres rotatifs
FR8418584		1984-12-04

Publications (3)

Publication Number	Publication Date
EP0184557A2 true EP0184557A2 (de)	1986-06-11
EP0184557A3 EP0184557A3 (en)	1988-07-06
EP0184557B1 EP0184557B1 (de)	1990-06-13

Family

ID=9310281

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85810572A Expired - Lifetime EP0184557B1 (de)	1984-12-04	1985-12-03	Shredder mit rotierenden Achsen

Country Status (4)

Country	Link
EP (1)	EP0184557B1 (de)
AT (1)	ATE53512T1 (de)
DE (1)	DE3578138D1 (de)
FR (1)	FR2574001B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0401620A1 (de) *	1989-06-08	1990-12-12	Lindemann Maschinenfabrik GmbH	Rotor mit Schutzkappen
EP3012024A1 (de) *	2014-10-21	2016-04-27	FOR REC srl	Mähmaschine für abfallmaterial

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB254576A (en) *	1925-10-21	1926-07-08	Charles David Phillips	Improvements in and relating to rollers for mortar, grinding and other similar mills
GB394430A (en) *	1932-02-19	1933-06-29	Roy Wallace Green	Improvements in and relating to machines for breaking coke and the like
FR2257346A1 (en) *	1973-10-24	1975-08-08	Baikoff Eugene	Waste disintegrator esp. for old tyres - has elastic axial displacement of cutting discs when encountering very hard material
GB1558423A (en) *	1978-03-03	1980-01-03	Dresser Europe Sa	Shredding machine
EP0093223A1 (de) *	1982-04-29	1983-11-09	Officina Meccanica Pierangelo Colombo	Sektormesser und Wellenantriebseinrichtung, insbesondere für Zerkleinerungsmaschinen und dergleichen

1984
- 1984-12-04 FR FR8418584A patent/FR2574001B1/fr not_active Expired
1985
- 1985-12-03 AT AT85810572T patent/ATE53512T1/de not_active IP Right Cessation
- 1985-12-03 EP EP85810572A patent/EP0184557B1/de not_active Expired - Lifetime
- 1985-12-03 DE DE8585810572T patent/DE3578138D1/de not_active Expired - Fee Related

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0401620A1 (de) *	1989-06-08	1990-12-12	Lindemann Maschinenfabrik GmbH	Rotor mit Schutzkappen
EP3012024A1 (de) *	2014-10-21	2016-04-27	FOR REC srl	Mähmaschine für abfallmaterial

Also Published As

Publication number	Publication date
EP0184557B1 (de)	1990-06-13
ATE53512T1 (de)	1990-06-15
EP0184557A3 (en)	1988-07-06
DE3578138D1 (de)	1990-07-19
FR2574001B1 (fr)	1987-08-14
FR2574001A1 (fr)	1986-06-06

Legal Events

Date	Code	Title	Description
1986-04-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1986-06-11	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1988-05-16	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1988-07-06	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1988-12-28	17P	Request for examination filed	Effective date: 19881021
1989-11-08	17Q	First examination report despatched	Effective date: 19890921
1990-04-28	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1990-06-13	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE
1990-06-13	REF	Corresponds to:	Ref document number: 53512 Country of ref document: AT Date of ref document: 19900615 Kind code of ref document: T
1990-07-19	REF	Corresponds to:	Ref document number: 3578138 Country of ref document: DE Date of ref document: 19900719
1990-08-31	ITF	It: translation for a ep patent filed
1990-09-05	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1990-12-31	ITTA	It: last paid annual fee
1991-04-13	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1991-04-13	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1991-06-05	26N	No opposition filed
1991-12-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19911227 Year of fee payment: 7 Ref country code: LU Payment date: 19911227 Year of fee payment: 7
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1991-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19911231 Year of fee payment: 7
1992-01-03	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19920103 Year of fee payment: 7
1992-04-09	EPTA	Lu: last paid annual fee
1992-12-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19921203 Ref country code: GB Effective date: 19921203 Ref country code: AT Effective date: 19921203
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1992-12-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19921231
1993-06-30	BERE	Be: lapsed	Owner name: SOC. INDUSTRIELLE DE LA DOUX S.A. Effective date: 19921231
1993-07-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19930701
1993-07-28	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19921203
1993-08-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1994-12-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19941229 Year of fee payment: 10
1995-01-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19950124 Year of fee payment: 10
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 85810572.9 Effective date: 19930709
1995-03-02	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19950302 Year of fee payment: 10
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1996-10-31	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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EP0184557A2 - Shredder mit rotierenden Achsen - Google Patents

Info

Links

Images

Classifications

Definitions

Landscapes

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

Family

ID=9310281

Family Applications (1)

Country Status (4)

Cited By (2)

Family Cites Families (5)

Cited By (2)

Also Published As

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