EP0492004A1 - Dispositif pour la détermination de l'écartement d'une paire de rouleaux - Google Patents

Dispositif pour la détermination de l'écartement d'une paire de rouleaux Download PDF

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Publication number
EP0492004A1
EP0492004A1 EP90125785A EP90125785A EP0492004A1 EP 0492004 A1 EP0492004 A1 EP 0492004A1 EP 90125785 A EP90125785 A EP 90125785A EP 90125785 A EP90125785 A EP 90125785A EP 0492004 A1 EP0492004 A1 EP 0492004A1
Authority
EP
European Patent Office
Prior art keywords
rollers
sensors
assigned
axes
arrangement 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.)
Withdrawn
Application number
EP90125785A
Other languages
German (de)
English (en)
Inventor
Günther Bischof
Ludwig Dipl.-Ing. Pötschke
Hermann Stein
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.)
Maschinen- und Muehlenbau Wittenberg GmbH
Original Assignee
Maschinen- und Muehlenbau Wittenberg 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 Maschinen- und Muehlenbau Wittenberg GmbH filed Critical Maschinen- und Muehlenbau Wittenberg GmbH
Publication of EP0492004A1 publication Critical patent/EP0492004A1/fr
Withdrawn legal-status Critical Current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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members

Definitions

  • the invention relates to an arrangement for detecting, in particular measuring, the roll gap between two rolls of a roll mill arranged parallel to one another.
  • DE-PS 36 31 719 shows the use of the rollers as electrodes and the use of the ground material as a dielectric in the measurement of the nip width.
  • the complexity of the technical solutions shown, as well as the high quantitative and qualitative effort required, have proven to be disadvantageous.
  • Another disadvantage of all the solutions listed is that the change of the rollers of the same nominal diameter requires a new adjustment of Rollers and sensor required.
  • This object is achieved in that there is at least one measuring point on its axes at the end of the rolls, to which a sensor is assigned and at least one further sensor is provided for each of the rolls, each of which is assigned to a lateral surface of the associated roll.
  • a surprisingly simple and also with respect to the signal processing of the signals emitted by the sensor arrangements is preferably achieved in that the sensors are arranged in a bearing plane which is determined by the axes of the rollers.
  • a measuring point is therefore preferably arranged on each of the opposite axis ends of each roller and a sensor is assigned to each of these measuring points, which sensor detects the associated axis end or the measuring point in the bearing plane spanned by the axes of the pair of rollers, the sensors on the two end faces of the pair of rollers preferably either between the axle ends or measuring points or radially outside with respect to this or are also arranged in a position combining these arrangement forms.
  • a particularly uniform measurement of the roll gap over the entire axial length of the roll gap between the rolls is achieved, in particular, in that, axially distributed over the roll length, at least three sensors are assigned to each of the lateral surfaces of the rolls. These are preferably opposite each other in the bearing plane determined by the axes of the rollers with respect to their measuring distances. It is preferred that one pair of sensors is assigned to the pair of rollers radially on the outside in both axial end regions, while another pair of sensors is assigned to the lateral surfaces of the rollers approximately in the middle with respect to the axial extent of the rollers.
  • the solution according to the invention has the particular advantage that the roller gap of the pair of rollers can be reliably detected both in the idle state or in the dynamic movement state of the rollers and can be measured without changing the position of the rollers and / or sensors, and, moreover, when the rollers are replaced by rollers of the same nominal diameter readjustment of the rollers and sensors for measuring purposes and for recording and monitoring the roller gap is not necessary.
  • the right side of the figure shows a first embodiment, while the left side of the figure illustrates a second embodiment of the invention.
  • the figure shows schematically two rollers 1, 1 'of a roller frame, preferably a roller frame for grinding grain, with a measuring arrangement for detecting the roller gap between the rollers 1, 1'.
  • the invention is not limited to a roller mill with the roller arrangement shown; rather, the invention can also be applied to roller mills with more than two rollers, e.g. a roller mill with three rollers, the axes of which run parallel to one another to form two roller nips.
  • the rollers 1, 1 ' are arranged in a close, parallel arrangement to one another.
  • Each of its axes 2, 2 ' has measuring points 3, 4 on both sides of the roller end faces in connection with the axis ends; 3 ', 4' on.
  • Each of these measuring points is preferably in particular a sensor 5, 6; 5 ', 6' assigned.
  • these sensors 5, 6; 5 ', 6' each arranged in a plane which is spanned by the axes 2, 2 'of the rollers 1, 1' of the roller frame.
  • the sensors can be arranged both between the axis ends or measuring points 4, 4 '(cf. sensors 6, 6' , left half of the figure) or they can each be located radially outside be arranged with respect to the axis ends or measuring points 3, 3 '(cf. right half of the figure, sensors 5, 5') or any combination of the two embodiments can be arranged for the arrangement of the sensors 5, 5 '; 6, 6 'can be selected as shown in the figure.
  • the type of sensors is not restricted to certain types; Rather, both photoelectric, inductive and sensor designs based on other operating principles can be selected for this.
  • the arrangement according to the invention is further characterized in that, in addition to sensor arrangements 3, 5; 3 ', 5'; 4, 6; 4 ', 6' at least one further sensor 7, 8, 9 or 7 ', 8', 9 'is assigned to the outer surface of each of the rollers 1, 1', these further sensors 7, 8, 9 or 7 ' , 8 ', 9' are preferably also arranged in the plane which is spanned by the axes 2, 2 'of the rollers 1, 1' and in which the sensors 5, 5 '; 4, 4 'are arranged.
  • three sensors 7, 8, 9 are distributed externally and axially along the lateral surface of the respective roller 1, 1 '; 7 ', 8', 9 'are provided opposite each other, a sensor 8, 8' being arranged in the central region, based on the axial extent of each roller 1, 1 ', while a further sensor 7, 9 and 7' is in each case arranged.
  • the invention is of course not limited to such an arrangement; Rather, it is also possible to use further sensors along the lateral surface of the rollers 1, 1 ', preferably in the plane formed by the axes 2, 2' of the rollers and opposite or in other orientations, for example to the arrangement shown in the figure by 90 ° Staggered circumferential direction may be provided.
  • both the sensors 5, 5 ', 4, 4' which monitor the ends of the axes and the sensors 7, 8, 9 and 7 ', 8', 9 'which monitor the roll surface areas are each arranged together in the plane defined by the axes 2 , 2 'of the pair of rollers 1, 1' of the roller frame is defined.
  • the arrangement of the measuring points 3, 4; 3 ', 4' in the area of the roller bearings which are preferably arranged in the bearing plane determined by the axes 2, 2 'of the roller pair 1, 1', with the measuring points 3, 4; 3 ', 4' interacting sensors 5, 6; 5 ', 6' and the further sensors 7, 8, 9; preferably also located in the main or bearing plane determined by the axes 2, 2 '; 7 ', 8', 9 ', which are assigned to the outer surfaces of the rolls 1, 2 for their measurement-related detection, ensures that the rolls 1, 1' are exchanged for such same nominal diameter makes a subsequent readjustment of the rolls and / or sensors for measuring the roll gap unnecessary and the roll gap between the rolls 1, 1 'by such an arrangement either in the static or in the dynamic state of the rolls 1, 1' without Change in position of the rollers can be detected or measured by the measuring arrangement.
  • the measuring arrangement according to the invention for the roll nip can also be connected to a control device containing a comparator, which in turn controls an adjusting device for the setting or keeping the roll nip in dependence on the measuring signals of the sensors 5 to 9 or 5 'to 9', without this would be shown here in detail.
  • the invention is applicable for the metrological detection of the roll gap between at least two rolls of a roll mill arranged parallel to one another, preferably for grinding grain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP90125785A 1989-11-14 1990-12-28 Dispositif pour la détermination de l'écartement d'une paire de rouleaux Withdrawn EP0492004A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD33455789A DD289122A5 (de) 1989-11-14 1989-11-14 Anordnung zum messen des walzenspaltes

Publications (1)

Publication Number Publication Date
EP0492004A1 true EP0492004A1 (fr) 1992-07-01

Family

ID=5613819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90125785A Withdrawn EP0492004A1 (fr) 1989-11-14 1990-12-28 Dispositif pour la détermination de l'écartement d'une paire de rouleaux

Country Status (2)

Country Link
EP (1) EP0492004A1 (fr)
DD (1) DD289122A5 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222085A1 (de) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag Verschleißmeßverfahren für Mahlwalzen von Walzenmaschinen
DE4226182A1 (de) * 1992-08-07 1994-02-10 Kloeckner Humboldt Deutz Ag Anlage und Verfahren zur Druckbehandlung körnigen Gutes
EP2653224A1 (fr) * 2012-04-20 2013-10-23 Metso Brasil Industria e Comercio Ltda Dispositif de test pour broyeur à rouleaux
WO2013156964A1 (fr) * 2012-04-20 2013-10-24 Metso Brasil Indústria E Comércio Ltda Dispositif de test pour broyeur à cylindres

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216807C2 (de) * 1992-05-21 1996-10-17 Wirth Muehlenbau Dresden Gmbh Einrichtung zum berührungslosen Messen des Walzenspaltes eines Walzenpaares

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684332A (en) * 1971-03-29 1972-08-15 Procter & Gamble Apparatus for adjusting the center distance between bearing support members
DE3303014C2 (fr) * 1983-01-29 1989-08-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684332A (en) * 1971-03-29 1972-08-15 Procter & Gamble Apparatus for adjusting the center distance between bearing support members
DE3303014C2 (fr) * 1983-01-29 1989-08-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222085A1 (de) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag Verschleißmeßverfahren für Mahlwalzen von Walzenmaschinen
DE4226182A1 (de) * 1992-08-07 1994-02-10 Kloeckner Humboldt Deutz Ag Anlage und Verfahren zur Druckbehandlung körnigen Gutes
EP2653224A1 (fr) * 2012-04-20 2013-10-23 Metso Brasil Industria e Comercio Ltda Dispositif de test pour broyeur à rouleaux
WO2013156964A1 (fr) * 2012-04-20 2013-10-24 Metso Brasil Indústria E Comércio Ltda Dispositif de test pour broyeur à cylindres
AU2013205189B2 (en) * 2012-04-20 2015-07-23 Metso Brasil Indústria E Comércio Ltda Test device for roller crusher

Also Published As

Publication number Publication date
DD289122A5 (de) 1991-04-18

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