US3656695A - Roller mill with rotating grinding vessel - Google Patents

Roller mill with rotating grinding vessel Download PDF

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Publication number
US3656695A
US3656695A US45856A US3656695DA US3656695A US 3656695 A US3656695 A US 3656695A US 45856 A US45856 A US 45856A US 3656695D A US3656695D A US 3656695DA US 3656695 A US3656695 A US 3656695A
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US
United States
Prior art keywords
grinding vessel
transmission
vessel
roller mill
shaft
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
US45856A
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English (en)
Inventor
Ottmar Bacharach
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.)
Gebr Pfeiffer Barbarossawerke AG
Original Assignee
Gebr Pfeiffer Barbarossawerke AG
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 Gebr Pfeiffer Barbarossawerke AG filed Critical Gebr Pfeiffer Barbarossawerke AG
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Publication of US3656695A publication Critical patent/US3656695A/en
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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
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/006—Ring or disc drive gear arrangement

Definitions

  • the invention relates to shaft driven roller grinding mills. More in particular, the invention concerns a roller. mill with a rotary grinding vessel where the grinding vessel is put in rotation by drive means in the base of the mill with an intermediate transmission. Mills of this type, when overly loaded or filled are prone to oscillate if they are improperly operated. This results from the fact that the mass of the grinding vessel and a shaft disposed between the transmission and the vessel form a system as a torsion spring in which rotary oscillations can develop. Due to the grinding rollers, possibly influenced by the gears of the transmission, it is possible that oscillations develop in a resonance range that produce large forces and result under certain conditions in damage to the transmission.
  • the interrupted connection is chosen so that the flange of the transmission is arranged rotatably upon the end shaft and is no longer keyed to the shaft coming from the transmission as heretofore.
  • the transmission shaft is longed or extended upwardly and is one-sidedly coupled with the grinding vessel, as seen in the direction of rotation. At any rate, the oscillatory system that existed heretofore is interrupted, while the radial guidance of the grinding vessel is maintained.
  • FIG. 1 is a section taken along line l-I in FIG. 2, and
  • FIG. 2 is a plan view taken along line II-II in FIG. 1.
  • a drive shaft 2 for the grinding vessel 3 extends vertically upwardly.
  • the flange 4 of the transmission is rotatably arranged in the embodiment chosen as an example.
  • the drive shaft 2 which extends from the transmission 1 is prolonged upwardly and equipped with a head member 5 which has radially outwardly extending keys 6 or the like. These keys 6 rest against driven members having contact surfaces 7 of the grinding vessel base structure 8 as seen in the direction of rotation.
  • the shaft 2 is supported at its lower end and below flange 4' by bearings 2a and 2b, respectively, and a sliding-bearing 4a is interposed between flange 4 and the top of the transmission.
  • roller mill having a rotatable grinding vessel having a base supported above a transmission, a sliding bearing intermediate the base of said vessel and said transmission, a shaft extending intermediate said transmission and said grinding vessel centrally of said grinding vessel base and interrupted force transmitting means intermediate the upper end of said shaft and said grinding vessel base, said interrupted force transmitting means comprising a driving key or the like on said shaft and a driven member having a contact surface on said grinding vessel'base.
  • roller mill with rotatable grinding vessel in accordance with claim 1 comprising a plurality of driving keys or the like and a plurality of corresponding driven members with spaces between said keys and proximate contact surfaces.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Food-Manufacturing Devices (AREA)
US45856A 1969-06-12 1970-06-12 Roller mill with rotating grinding vessel Expired - Lifetime US3656695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1929912A DE1929912C3 (de) 1969-06-12 1969-06-12 Walzenschüsselmühle mit umlaufender Mahlschüssel

Publications (1)

Publication Number Publication Date
US3656695A true US3656695A (en) 1972-04-18

Family

ID=5736832

Family Applications (1)

Application Number Title Priority Date Filing Date
US45856A Expired - Lifetime US3656695A (en) 1969-06-12 1970-06-12 Roller mill with rotating grinding vessel

Country Status (4)

Country Link
US (1) US3656695A (enrdf_load_stackoverflow)
DE (1) DE1929912C3 (enrdf_load_stackoverflow)
FR (1) FR2049972A5 (enrdf_load_stackoverflow)
GB (1) GB1258367A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828401A1 (de) * 1977-07-01 1979-01-11 Erste Oesterr Zahnraeder Antriebsanordnung fuer walzenmuehlen
US4155511A (en) * 1976-05-12 1979-05-22 F. L. Smidth Roller mill
US4210291A (en) * 1978-07-10 1980-07-01 Erste Osterreichische Zahnraderfabrick Rudolf Kienast Gesellschaft m.b.H. Roller mill
US4218023A (en) * 1977-01-28 1980-08-19 Loesche Gmbh Grinding pan bearing arrangement and drive of a roller mill
CN100563835C (zh) * 2006-12-18 2009-12-02 二重集团（德阳）重型装备股份有限公司 立式辊磨机
US10677331B2 (en) * 2017-06-14 2020-06-09 Flender Gmbh Vertical mill gearbox

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2905025A1 (de) * 1979-02-09 1980-08-14 Pfeiffer Ag Geb Walzenquetschmuehle
DK3025784T3 (en) * 2014-11-27 2017-09-18 Loesche Gmbh Grinding Bowl

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518428A (en) * 1947-06-14 1950-08-08 Clearfield Machine Company Combined scraper and emptier mechanism for wet pan mixing machines
US3076489A (en) * 1959-08-10 1963-02-05 Chemetron Corp Comminuting apparatus
US3540234A (en) * 1968-11-29 1970-11-17 Dynamics Corp America Liquidizer disengageable drive coupling
US3550657A (en) * 1968-11-29 1970-12-29 Dynamics Corp America Homogenizing liquidizer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8368C (de) * C. DECHAMP, Ingenieur, in Servilles-les-Eaux Schlagmaschine zum Pulverisiren beliebiger Materialien
DE1192911B (de) * 1961-08-11 1965-05-13 Kohlenscheidungs Ges Mit Besch Quetschmuehle mit umlaufender Mahlschuessel
BE673808A (enrdf_load_stackoverflow) * 1964-12-15
DE1960581A1 (de) * 1969-12-03 1971-06-09 Vdo Schindling Einrichtung zum Festlegen der Drehrichtung eines mit undefinierter Drehrichtung anlaufenden Motors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518428A (en) * 1947-06-14 1950-08-08 Clearfield Machine Company Combined scraper and emptier mechanism for wet pan mixing machines
US3076489A (en) * 1959-08-10 1963-02-05 Chemetron Corp Comminuting apparatus
US3540234A (en) * 1968-11-29 1970-11-17 Dynamics Corp America Liquidizer disengageable drive coupling
US3550657A (en) * 1968-11-29 1970-12-29 Dynamics Corp America Homogenizing liquidizer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155511A (en) * 1976-05-12 1979-05-22 F. L. Smidth Roller mill
US4218023A (en) * 1977-01-28 1980-08-19 Loesche Gmbh Grinding pan bearing arrangement and drive of a roller mill
US4339086A (en) * 1977-01-28 1982-07-13 Loecshe Gmbh Company Grinding pan bearing arrangement and drive of a roller mill
DE2828401A1 (de) * 1977-07-01 1979-01-11 Erste Oesterr Zahnraeder Antriebsanordnung fuer walzenmuehlen
US4210291A (en) * 1978-07-10 1980-07-01 Erste Osterreichische Zahnraderfabrick Rudolf Kienast Gesellschaft m.b.H. Roller mill
CN100563835C (zh) * 2006-12-18 2009-12-02 二重集团（德阳）重型装备股份有限公司 立式辊磨机
US10677331B2 (en) * 2017-06-14 2020-06-09 Flender Gmbh Vertical mill gearbox

Also Published As

Publication number Publication date
DE1929912B2 (de) 1977-02-10
GB1258367A (enrdf_load_stackoverflow) 1971-12-30
DE1929912A1 (de) 1971-01-07
FR2049972A5 (enrdf_load_stackoverflow) 1971-03-26
DE1929912C3 (de) 1981-10-15

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