EP0492004A1 - Device for determining the gap between a pair of rolls - Google Patents

Device for determining the gap between a pair of rolls 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
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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Withdrawn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
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German (de)
French (fr)
Inventor
Günther Bischof
Ludwig Dipl.-Ing. Pötschke
Hermann Stein
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Maschinen- und Muehlenbau Wittenberg GmbH
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Maschinen- und Muehlenbau Wittenberg GmbH
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Publication of EP0492004A1 publication Critical patent/EP0492004A1/en
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    • 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.

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  • 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)

Abstract

The invention relates to an arrangement for determining, with measuring technology, the gap between a pair of rollers for cylinder mills, the axle ends of each pair of rollers 1, 1' having on their ends measuring points 3, 4, 3', 4', to which sensors 5, 6, 5', 6' are assigned, and further sensors 7, 8, 9, 7', 8', 9' being assigned in each case lying opposite one another in pairs to the casing surfaces of the rollers 1, 1', and preferably all the sensors 5-9, 5'-9' are arranged in a plane determined by the longitudinal axes 2, 2' of the rollers 1, 1' of the pair of rollers .

Description

Die Erfindung betrifft eine Anordnung zum Erfassen, insbesondere Messen des Walzenspaltes zwischen zwei zueinander parallel angeordneten Walzen eines Walzenstuhles.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.

Die Ermittlung des Walzenspaltes zwischen zwei zueinander parallel angeordneten Walzen eines Walzenstuhles mittels verschiedener Geber und Verfahren ist bekannt. So sind vor jeder definierten Walzenspalteinstellung die Walzen bis zur gegenseitigen Berührung gegeneinanderzufahren und anschließend um die gewünschte Walzenspaltbreite auseinanderzufahren. Diese Möglichkeit beschreibt die DE-PS 35 21 154.1. Nachteilig ist, daß Walzenspaltveränderungen, z.B. infolge auf die Walzen wirkender Druckveränderung, Temperatureinflüsse oder mechanischen Verschleißes der Walzen, während des Mahlvorganges nicht erfaßt werden. Weiterhin ist nachteilig, daß diees Verfahren immer den statischen Zustand der Walzen erfordert. Die DE-PS 30 16 786 beschreibt den Einsatz eines induktiven Spaltbreitengebers zur Walzenspaltbreitenregulierung. In der DE-PS 36 31 719 wird die Verwendung der Walzen als Elektroden und die Benutzung des Mahlgutes als Dielektrikum bei der Walzenspaltbreitenmessung dargestellt. Als nachteilig erweist sich in beiden Fällen die Kompliziertheit der dargestellten technischen Lösungen sowie der dafür erforderlich hohe quantitative und qualitative Aufwand. Weiterhin nachteilig bei allen aufgeführten Lösungen ist, daß der Wechsel der Walzen gleichen Nenndurchmessers eine erneute Justierung von Walzen und Sensor erforderlich macht.The determination of the roll gap between two rolls of a roll mill arranged parallel to one another by means of different sensors and methods is known. Before each defined nip setting, the rolls must be moved against each other until they touch each other and then moved apart by the required nip width. This possibility describes the DE-PS 35 21 154.1. The disadvantage is that changes in the nip, for example as a result of pressure changes acting on the rolls, temperature influences or mechanical wear of the rolls, are not detected during the grinding process. Another disadvantage is that this method always requires the static condition of the rolls. DE-PS 30 16 786 describes the use of an inductive nip width transmitter for regulating the nip width. 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. In both cases, 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.

Es ist Aufgabe der Erfindung, die Walzen meßtechnisch so zu erfassen, daß der tatsächliche Walzenspalt mit der erforderlichen Genauigkeit stets wahlweise sowohl im statischen als auch im damischen Zustand der Walzen gemessen werden kann, bei gleichzeitiger Entbehrlichkeit einer Justierung nach dem Wechseln der Walzen gleichen Nenndurchmessers.It is an object of the invention to measure the rolls technically so that the actual roll gap can always be measured with the required accuracy either in the static as well as in the then state of the rolls, while at the same time dispensing with an adjustment after changing the rolls of the same nominal diameter.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß sich stirnseitig der Walzen auf ihren Achsen zumindest eine Meßstelle befindet, der ein Sensor zugeordnet ist und zumindest je ein weiterer Sensor für jede der Walzen vorgesehen ist, der jeweils einer Mantelfläche der zugehörigen Walze zugeordnet ist. Vorzugsweise wird eine überraschend einfache und auch bezüglich der Signalverarbeitung der von den Sensoranordnungen abgegebenen Signale dadurch erreicht, daß die Sensoren in einer Lagerungsebene angeordnet sind, die durch die Achsen der Walzen bestimmt wird.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.

Z.B. für Müllerei-Walzenstühle zur Vermahlung von Getreide ist aufgrund der invasiven Arbeits- und Umgebungsbedingungen eine robuste und störunanfällige Meßanordnung für die Erfassung des Walzenspaltes wünschenswert. Vorzugsweise ist daher auf jedem der gegenüberliegenden Achsende jeder Walze eine Meßstelle angeordnet und ist jeder dieser Meßstellen ein Sensor zugeordnet, der eine Erfassung des zugehörigen Achsendes bzw. der Meßstelle in der durch die Achsen des Walzenpaares ausgespannten Lagerungsebene bewirkt, wobei die Sensoren an den beiden Stirnseiten des Walzenpaares vorzugsweise entweder zwischen den Achsenden bzw. Meßstellen oder radial außenliegend in bezug auf diese oder auch in einer diese Anordnungsformen kombinierenden Position angeordnet sind.For example, for milling roller mills for grinding grain, a robust and fault-free measuring arrangement for detecting the roller gap is desirable due to the invasive working and environmental conditions. 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.

Eine besonders gleichmäßige meßtechnische Erfassung des Walzenspaltes über die gesamte axiale Länge desselben zwischen den Walzen wird insbesondere dadurch erreicht, daS, axial über die Walzenlänge verteilt, jeder der Mantelfläche der Walzen zumindest drei Sensoren zugeordnet sind. Diese liegen einander vorzugsweise in der durch die Achsen der Walzen bestimmten Lagerungsebene bezüglich ihrer Meßstrecken gegenüber. Dabei wird bevorzugt, daß jeweils ein Sensorenpaar dem Walzenpaar radial außenliegend in beiden axialen Endbereichen zugeordnet ist, während ein weiteres Sensorpaar den Mantelflächen der Walzen etwa in der Mitte bezüglich der Axialerstreckung der Walzen zugeordnet ist.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.

Durch die erfindungsgemäße Lösung wird insbesondere der Vorteil erreicht, daß der Walzenspalt des Walzenpaares sowohl im Ruhezustand oder im dynamischen Bewegungszustand der Walzen zuverlässig erfaßt und ohne Lageveränderung der Walzen und/oder Sensoren gemessen werden kann und überdies bei einem Auswechseln der Walzen durch Walzen gleichen Nenndurchmessers ein erneutes Justieren der Walzen und Sensoren zu Meßzwecken und zur Erfassung und Überwachung des Walzenspaltes nicht erforderlich ist.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.

Die Erfindung wird nachstehend anhand von Ausführungsbeispielen und einer zugehörigen Zeichnung erläutert.The invention is explained below using exemplary embodiments and an associated drawing.

Diese zeigt in schematischer Darstellung eine Anordnung von Walzen und Sensoren nach der vorliegenden Erfindung.This shows a schematic representation of an arrangement of rollers and sensors according to the present invention.

Die rechte Seite der Figur zeigt dabei ein erstes Ausführungsbeispiel, während die linke Seite der Figur ein zweites Ausführungsbeispiel der Erfindung verdeutlicht.The right side of the figure shows a first embodiment, while the left side of the figure illustrates a second embodiment of the invention.

In der Figur sind schematisch zwei Walzen 1, 1' eines Walzenstuhles, vorzugsweise eines Walzenstuhles zum Vermahlen von Getreide mit einer Meßanordnung zur Erfassung des Walzenspaltes zwischen den Walzen 1, 1' dargestellt. Die Erfindung ist dabei nicht auf einen Walzenstuhl mit der dargestellten Walzenanordnung beschränkt; vielmehr kann die Erfindung auch auf Walzenstühle mit mehr als zwei Walzen angewandt werden, z.B. einem Walzenstuhl mit drei Walzen, deren Achsen unter Bildung von zwei Walzenspalten parallel zueinander verlaufen.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.

Die Walzen 1, 1' sind in enger, paralleler Anordnung zueinander angeordnet. Jede ihrer Achsen 2, 2' weist beiderseits der Walzenstirnflächen in Verbindung mit den Achsenden Meßstellen 3, 4; 3', 4' auf. Vorzugsweise jeder dieser Meßstellen ist insbesondere ein Sensor 5, 6; 5', 6' zugeordnet. In einer bevorzugten Ausbildung der erfindungsgemäßen Anordnung zur Erreichung einer einfachen Signalverarbeitung sind diese Sensoren 5, 6; 5', 6' jeweils in einer Ebene angeordnet, welche durch die Achsen 2, 2' der Walzen 1, 1' des Walzenstuhles ausgespannt wird.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. In a preferred embodiment of the arrangement according to the invention for achieving simple signal processing, 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.

In dieser bevorzugten Anordnung der Sensoren in der durch die Achsen 2, 2' der Walzen 1, 1' definierten Lagerungsebene des Walzenpaares können dabei die Sensoren sowohl zwischen den Achsenden bzw. Meßstellen 4, 4' angeordnet sein (vgl. Sensoren 6, 6', linke Hälfte der Figur) oder sie können jeweils radial außenliegend in bezug auf die Achsenden bzw. Meßstellen 3, 3' angeordnet sein (vgl. rechte Hälfte der Figur, Sensoren 5, 5') oder es kann eine beliebige Kombination der beiden Ausführungsformen für die Anordnung der Sensoren 5, 5'; 6, 6' gemäß der Darstellung in der Figur gewählt werden. Ebenfalls ist die Art der Sensoren nicht auf bestimmte Gattungen beschränkt; vielmehr können hierfür sowohl fotoelektrische, induktive als auch auf der Grundlage anderer Wirkprinzipien arbeitender Sensorausführungen gewählt werden. Vorzugsweise werden die Meßstellen 3, 3'; 4, 4' als Geber und die Sensoren 5, 5'; 6, 6' als Empfänger verwendet, ohne daß die erfindungsgemäße Anordnung hierauf beschränkt wäre.In this preferred arrangement of the sensors in the bearing plane of the pair of rollers defined by the axes 2, 2 'of the rollers 1, 1', 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. Likewise, 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 measuring points 3, 3 '; 4, 4 'as sensors and sensors 5, 5'; 6, 6 'used as a receiver, without the arrangement according to the invention being limited to this.

Die erfindungsgemäße Anordnung zeichnet sich ferner dadurch aus, daß zusätzlich zu in Verbindung mit die Lage der Achsenden der Walzen 1, 1' überwachenden Sensoranordnungen 3, 5; 3', 5'; 4, 6; 4', 6' zumindest je ein weiterer Sensor 7, 8, 9 bzw. 7', 8', 9' der Mantelfläche jeder der Walzen 1, 1' zugeordnet ist, wobei diese weiteren Sensoren 7, 8, 9 bzw. 7', 8', 9' vorzugsweise ebenfalls in der Ebene angeordnet sind, die durch die Achsen 2, 2' der Walzen 1, 1' ausgespannt wird und in der vorzugsweise ebenfalls die die Achsenden überwachenden Sensoren 5, 5'; 4, 4' angeordnet sind.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.

Nach einer bevorzugten Ausführungsform der Erfindung sind jeweils außenliegend und axial entlang der Mantelfläche der jeweiligen Walze 1, 1' verteilt drei Sensoren 7, 8, 9; 7', 8', 9' jeweils gegenüberliegend vorgesehen, wobei jeweils ein Sensor 8, 8' im mittleren Bereich, bezogen auf die axiale Erstreckung jeder Walze 1, 1' angeordnet ist, während jeweils ein weiterer Sensor 7, 9 bzw. 7', 9' die Umfangsfläche der zugehörigen Walze 1, 1' an den stirnseitigen Endbereichen derselben erfaßt.According to a preferred embodiment of the invention, 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. , 9 'the peripheral surface of the associated roller 1, 1' on the front End areas of the same detected.

Die Erfindung ist selbstverständlich nicht auf eine derartige Anordnung beschränkt; es können vielmehr auch weitere Sensoren entlang der Mantelfläche der Walzen 1, 1', vorzugsweise in der durch die Achsen 2, 2' der Walzen gebildeten Ebene und gegenüberliegend oder auch in anderen Orientierungen, z.B. zu der in der Figur gezeigten Anordnung um 90o in Umfangsrichtung versetzt angeordnet, vorgesehen sein.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.

Es wird jedoch besonders bevorzugt, daß sämtliche Sensoren, d.h. sowohl die die Achsenden überwachenden Sensoren 5, 5', 4, 4' als auch die die Walzenmantelflächen überwachenden Sensoren 7, 8, 9 bzw. 7', 8', 9' jeweils gemeinsam in der Ebene angeordnet sind, die durch die Achsen 2, 2' des Walzenpaares 1, 1' des Walzenstuhles definiert ist.However, it is particularly preferred that all sensors, i.e. 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.

In Abhängigkeit von dem Material der Walzen 1, 1' des Walzenstuhles sowie weiterer Gegebenheiten, kann die Art der Sensoren 7 bis 9 bzw. 7' bis 9' vom Fachmann ohne Schwierigkeiten gewählt werden.Depending on the material of the rollers 1, 1 'of the roller mill and other circumstances, the type of sensors 7 to 9 or 7' to 9 'can be selected by a person skilled in the art without difficulty.

Durch die Anordnung der Meßstellen 3, 4; 3', 4' im Bereich der Walzenlagerungen, die vorzugsweise in der durch die Achsen 2, 2' des Walzenpaares 1, 1' bestimmten Lagerungsebene angeordneten, mit den Meßstellen 3, 4; 3', 4' zusammenwirkenden Sensoren 5, 6; 5', 6' sowie der vorzugsweise ebenfalls in der durch die Achsen 2, 2' bestimmten Haupt- bzw. Lagerungsebene liegenden, weiteren Sensoren 7, 8, 9; 7', 8', 9', die den Mantelflächen der Walzen 1, 2 zu deren meßtechnischer Erfassung gegenüberliegend zugeordnet sind, wird erreicht, daß das Auswechseln der Walzen 1, 1' gegen solche gleichen Nenndurchmesser ein nachfolgendes erneutes Justieren der Walzen und/oder Sensoren zur meßtechnischen Erfassung des Walzenspaltes überflüssig macht und der Walzenspalt zwischen den Walzen 1, 1' durch eine derartige Anordnung wahlweise sowohl im statischen als auch im dynamischen Zustand der Walzen 1, 1' ohne Lageveränderung der Walzen durch die Meßanordnung erfaßt bzw. gemessen werden kann.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.

Die erfindungsgemäße Meßanordnung für den Walzenspalt kann auch mit einer einen Komparator enthaltenden Steuereinrichtung verbunden sein, die ihrerseits in Abhängigkeit von den Meßsignalen der Sensoren 5 bis 9 bzw. 5' bis 9' eine Stelleinrichtung für die Einstellung oder Konstanthaltung des Walzenspaltes steuert, ohne daß dies hier im einzelnen dargestellt wäre.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.

Die Erfindung ist für die meßtechnische Erfassung des Walzenspaltes zwischen zumindest zwei zueinander parallel angeordneten Walzen eines Walzenstuhles, vorzugsweise zum Vermahlen von Getreide, anwendbar.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.

Claims (8)

Anordnung zum Erfassen des Walzenspaltes zwischen zwei zueinander parallel angeordneten Walzen, insbesondere für einen Walzenstuhl, dadurch gekennzeichnet, daß sich stirnseitig der Walzen (1, 1') auf ihren Achsen (2, 2') zumindest eine Meßstelle (3, 4; 3', 4') befindet, der ein Sensor (5, 6; 5', 6') zugeordnet ist und zumindest je ein weiterer Sensor (7, 8, 9; 7', 8', 9') für jede der Walzen (1, 1') vorgesehen ist, der jeweils einer Mantelfläche der zugehörigen Walze (1, 1') zugeordnet ist.Arrangement for detecting the nip between two rollers arranged parallel to one another, in particular for a roller mill, characterized in that at least one measuring point (3, 4; 3 ') is located on the ends of the rollers (1, 1') on their axes (2, 2 '). , 4 '), to which a sensor (5, 6; 5', 6 ') is assigned and at least one further sensor (7, 8, 9; 7', 8 ', 9') for each of the rollers (1 , 1 ') is provided, each of which is assigned to a lateral surface of the associated roller (1, 1'). Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Sensoren (5 bis 9; 5' bis 9') in einer Lagerungsebene angeordnet sind, die durch die Achsen (2, 2') der Walzen (1, 1') definiert ist.Arrangement according to claim 1, characterized in that the sensors (5 to 9; 5 'to 9') are arranged in a bearing plane which is defined by the axes (2, 2 ') of the rollers (1, 1'). Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß auf jedem der gegenüberliegenden Achsenden jeder Walze (1, 1') eine Meßstelle (3, 4; 3', 4') angeordnet und jeder dieser Meßstellen (3, 4; 3', 4') ein Sensor (5, 6; 5', 6') zugeordnet ist.Arrangement according to claim 1 or 2, characterized in that a measuring point (3, 4; 3 ', 4') is arranged on each of the opposite axis ends of each roller (1, 1 ') and each of these measuring points (3, 4; 3', 4 ') a sensor (5, 6; 5', 6 ') is assigned. Anordnung nach zumindest einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die den Meßstellen (3, 4; 3', 4') zugeordneten Sensoren (5, 6; 5', 6') in der durch die Achsen (2, 2') bestimmten Lagerungsebene der Walzen (1, 1') angeordnet sind.Arrangement according to at least one of the preceding claims 1 to 3, characterized in that the sensors (5, 6; 5 ', 6') assigned to the measuring points (3, 4; 3 ', 4') in which the axes (2, 2 ') certain storage plane of the rollers (1, 1') are arranged. Anordnung nach Anspruch 4, dadurch gekennzeichnet, daß die Sensoren (5, 5'; 6, 6') innerhalb und/oder außerhalb des Raumes zwischen den beiden Achsen (2, 2') der Walzen (1, 1') angeordnet sind.Arrangement according to claim 4, characterized in that the sensors (5, 5 '; 6, 6') are arranged inside and / or outside the space between the two axes (2, 2 ') of the rollers (1, 1'). Anordnung nach zumindest einem der vorhergehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jeder Mantelfläche der Walzen (1, 1') axial über die Walzenlänge verteilt, zumindest drei Sensoren (7, 8, 9; 7', 8', 9') zugeordnet sind.Arrangement according to at least one of the preceding claims 1 to 5, characterized in that each lateral surface of the rolls (1, 1 ') is distributed axially over the roll length, at least three sensors (7, 8, 9; 7', 8 ', 9') assigned. Anordnung nach Anspruch 6, dadurch gekennzeichnet, daß die Sensoren (7, 8, 9; 7', 8', 9') einander gegenüberliegend und in der durch die Achsen (2, 2') der Walzen (1, 1') bestimmten Lagerungsebene derselben angeordnet sind.Arrangement according to claim 6, characterized in that the sensors (7, 8, 9; 7 ', 8', 9 ') opposite one another and determined by the axes (2, 2') of the rollers (1, 1 ') Storage level are arranged the same. Anordnung nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, daß Sensoren (7, 7'; 9, 9') jeweils paarweise einander gegenüberliegend in einem axialen Endbereich jeder Mantelfläche der Walzen (1, 1') angeordnet sind und zumindest ein weiterer Sensor (8, 8') jeweils im axialen Mittenbereich der Walzen (1, 1') angeordnet ist.Arrangement according to one of claims 6 or 7, characterized in that sensors (7, 7 '; 9, 9') are arranged in pairs opposite one another in an axial end region of each lateral surface of the rollers (1, 1 ') and at least one further sensor (8th, 8 ') is arranged in each case in the axial central region of the rollers (1, 1').
EP90125785A 1989-11-14 1990-12-28 Device for determining the gap between a pair of rolls Withdrawn EP0492004A1 (en)

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Application Number Priority Date Filing Date Title
DD33455789A DD289122A5 (en) 1989-11-14 1989-11-14 ARRANGEMENT FOR MEASURING THE ROLLING COLUMN

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222085A1 (en) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag Wear measuring method for grinding rolls of roll machines
DE4226182A1 (en) * 1992-08-07 1994-02-10 Kloeckner Humboldt Deutz Ag Hydraulically powered twin roller mill for granular raw materials - has feed unit with controlled flaps adjustable to suit measured gap between rollers
EP2653224A1 (en) * 2012-04-20 2013-10-23 Metso Brasil Industria e Comercio Ltda Test device for roller crusher
WO2013156964A1 (en) * 2012-04-20 2013-10-24 Metso Brasil Indústria E Comércio Ltda Test device for roller crusher

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216807C2 (en) * 1992-05-21 1996-10-17 Wirth Muehlenbau Dresden Gmbh Device for the contactless measurement of the nip of a pair of rollers

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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 (en) * 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 (en) * 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 (en) * 1992-07-04 1994-01-05 Kloeckner Humboldt Deutz Ag Wear measuring method for grinding rolls of roll machines
DE4226182A1 (en) * 1992-08-07 1994-02-10 Kloeckner Humboldt Deutz Ag Hydraulically powered twin roller mill for granular raw materials - has feed unit with controlled flaps adjustable to suit measured gap between rollers
EP2653224A1 (en) * 2012-04-20 2013-10-23 Metso Brasil Industria e Comercio Ltda Test device for roller crusher
WO2013156964A1 (en) * 2012-04-20 2013-10-24 Metso Brasil Indústria E Comércio Ltda Test device for roller crusher
AU2013205189B2 (en) * 2012-04-20 2015-07-23 Metso Brasil Indústria E Comércio Ltda Test device for roller crusher

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