DE202004011502U1 - Toothed belt for non contact measurement of distance and speed of the belt using magnetic material for inductive sensing of the distance travelled using magnetic sensors - Google Patents

Toothed belt for non contact measurement of distance and speed of the belt using magnetic material for inductive sensing of the distance travelled using magnetic sensors Download PDF

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Publication number
DE202004011502U1
DE202004011502U1 DE200420011502 DE202004011502U DE202004011502U1 DE 202004011502 U1 DE202004011502 U1 DE 202004011502U1 DE 200420011502 DE200420011502 DE 200420011502 DE 202004011502 U DE202004011502 U DE 202004011502U DE 202004011502 U1 DE202004011502 U1 DE 202004011502U1
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Prior art keywords
teeth
belt
distance
sensors
magnetic
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/28—Driving-belts with a contact surface of special shape, e.g. toothed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The toothed belt (1) is made of a plastic material or a rubber type material and comprises a carrier (3) and a row of teeth (2) at predetermined spacing. The teeth are augmented with magnetic material (4) such as iron rods or iron powder. The magnetic material allows the distance travelled by the belt to be inductively determined using magnetic sensors. Alternatively holes can be provided between the teeth to enable the travelled distance to be determined using optical sensors. Alternatively markings can be printed on the back of the belt for detection by an optical reflex light box. Alternatively strips of copper foil can be applied to the back of the belt for detection by capacitive sensors.

Description

Die vorliegende Erfindung betrift einen Antriebsriemen. Aus dem Stand der Technik sind Antriebsriemen aus Kunststoff oder Gummi mit eingearbeitetem Textilgewebe oder anderen Verstärkungen bekannt.The The present invention relates to a drive belt. From a standing start The technology is plastic or rubber drive belts with incorporated Known textile fabrics or other reinforcements.

Ausgehend von diesem Stand der Technik besteht die Aufgabe der vorliegenden Erfindung darin, einen Antriebsriemen zu schaffen, bei dem die berührungslose Weg- und Geschwindigkeitsmessung möglich ist.outgoing from this prior art there is the object of the present Invention to provide a drive belt in which the non-contact Distance and speed measurement is possible.

Dazu werden beispielsweise magnetische Materialien (z.B. Eisenstäbe, Eisenpulver,...) im Bereich der Zähne des Zahnriemens eingemischt um mit einem magnetischen Sensor die einzelnen Zähne zu erkennen und in elektrische Signale umzuwandeln. 1 For this purpose, magnetic materials (e.g. iron bars, iron powder, ...) are mixed in the teeth of the toothed belt in order to recognize the individual teeth with a magnetic sensor and convert them into electrical signals. 1

Eine weitere Möglichkeit besteht aus zwischen den Riemenzähnen eingestanzten Löchern für optische Sensoren. 2 Another possibility consists of holes punched between the belt teeth for optical sensors. 2

Eine weitere Möglichkeit besteht in der Beschriftung oder Beschichtung der Rückseite des Antriebsriemens mit Codestrichen 3 Another option is to label or coat the back of the drive belt with code lines 3

Eine weitere Möglichkeit besteht in der Beschichtung der Rückseite des Antriebsriemens mit einer metallischen Folie, die aufgeklebt, metallisiert oder galvanisiert und mit einer elastischen Schutzfolie überzogen ist, für die Auswertung mit kapazitiven Sensoren. 4 Another option is to coat the back of the drive belt with a metallic film that is glued, metallized or galvanized and coated with an elastic protective film for evaluation with capacitive sensors. 4

Die Lösung dieser Aufgabe liefert ein erfindungsgemäßer Antriebsriemen mit den kennzeichnenden Merkmalen des Hauptanspruchs. Nach dem erfindungsgemäßen Gedanken ist der Antriebsriemen anders als ein herkömmlicher Antriebsriemen zusätzlich mit optischen oder magnetischen Markierungen versehen um berührungslos den Weg und die Geschwindigkeit erfassen zu können.The solution this task is provided by a drive belt according to the invention characteristic features of the main claim. According to the idea of the invention the drive belt is different from a conventional drive belt optical or magnetic markings provided around contactless to be able to record the path and the speed.

Die Erfindung betrifft ein Verfahren zum Messen eines Weges und der Geschwindigkeit einer Schiebetür mit einem an der Wand fest angebrachten Sensorelement und einem an der Tür fest angebrachten Antriebsriemen mit auf dem Antriebsriemen angebrachter Markierung, die in Längsrichtung mit einem Rastermaß periodisch angeordnete Längsmarken umfasst, mit mindestens zwei im Sensorelement angebrachten Sensoren, die in Längsrichtung zueinander um einen Betrag versetzt sind, der ungleich dem n-fachen des halben Rastermaßes ist, wobei n eine ganze Zahl ist, derart, dass beim Verschieben des Antriebsriemens von den Sensoren erzeugte periodische Signale eine Phasenverschiebung zueinander aufweisen, und mit Schaltmitteln zum Addieren und Subtrahieren von aus den Signalen abgeleiteten Impulsen in Abhängigkeit vom Vorzeichen der Phasenverschiebung.The Invention relates to a method for measuring a path and the Speed of a sliding door with a sensor element fixed to the wall and one at the door firmly attached drive belt with attached to the drive belt Marking in the longitudinal direction periodically with a grid dimension arranged longitudinal marks comprises, with at least two sensors mounted in the sensor element, the one another in the longitudinal direction are offset by an amount not equal to n times half grid size where n is an integer such that when moving of the drive belt periodic signals generated by the sensors have a phase shift to each other, and with switching means for Adding and subtracting pulses derived from the signals dependent on from the sign of the phase shift.

Die von den Sensoren erzeugten Signale werden zunächst verstärkt und dann über Schwellwertstufen geleitet, um die sinusförmigen Signale in impulsförmige Signale umzuwandeln. In einer nachgeschalteten Recheneinheit findet nun eine Zählung von Impulsen statt, wobei die Zählrichtung von der Phasenlage der Signale der Sensoren zueinander abhängt.The Signals generated by the sensors are first amplified and then via threshold levels headed to the sinusoidal Signals in pulse form Convert signals. In a downstream computing unit now a count of Pulses instead, taking the counting direction depends on the phase relationship of the signals from the sensors to one another.

Claims (4)

Aus einem Kunststoffmaterial oder gummiähnlichem Material bestehender Zahnriemen (1), der aus einem Zugträger (3) und einer mit diesem verbundenen Zahnreihe (2) besteht, welche aus hintereinander in einem bestimmten Abstand angeordneten Zähnen besteht, wobei die Zähne mit einem magnetischem Material (4) (z.B. Eisenstäbe, Eisenpulver,...) angereichert sind. Das magnetische Material dient zur induktiven Wegerkennung durch magnetische Sensoren.Timing belts made of a plastic material or rubber-like material ( 1 ) which consists of a tension member ( 3 ) and a row of teeth connected to it ( 2 ), which consists of teeth arranged one behind the other at a certain distance, the teeth with a magnetic material ( 4 ) (e.g. iron bars, iron powder, ...) are enriched. The magnetic material is used for inductive path detection using magnetic sensors. Aus einem Kunststoffmaterial oder gummiähnlichem Material bestehender Zahnriemen (1), der aus einem Zugträger (3) und einer mit diesem verbundenen Zahnreihe (2) besteht, welche aus hintereinander in einem bestimmten Abstand angeordneten Zähnen besteht, wobei zwischen den Zähnen eingestanzte Löcher (5) vorhanden sind, die mit optischen Sensoren zur Wegerkennung verwendet werden.Timing belts made of a plastic material or rubber-like material ( 1 ) which consists of a tension member ( 3 ) and a row of teeth connected to it ( 2 ), which consists of teeth arranged one behind the other at a certain distance, holes punched between the teeth ( 5 ) are available, which are used with optical sensors for path detection. Aus einem Kunststoffmaterial oder gummiähnlichem Material bestehender Zahnriemen (1), der aus einem Zugträger (3) und einer mit diesem verbundenen Zahnreihe (2) besteht, welche aus hintereinander in einem bestimmten Abstand angeordneten Zähnen besteht, wobei sich auf der Rückseite aufgedruckte oder beschichtete Markierungen befinden, die zur Wegerkennung mit optischen Reflexlichtschranken verwendet werden.Timing belts made of a plastic material or rubber-like material ( 1 ) which consists of a tension member ( 3 ) and a row of teeth connected to it ( 2 ), which consists of teeth arranged one behind the other at a certain distance, whereby there are printed or coated markings on the back, which are used for path detection with optical reflex light barriers. Aus einem Kunststoffmaterial oder gummiähnlichem Material bestehender Zahnriemen (1), der aus einem Zugträger (3) und einer mit diesem verbundenen Zahnreihe (2) besteht, welche aus hintereinander in einem bestimmten Abstand angeordneten Zähnen besteht, wobei sich auf der Rückseite eine in Streifen aufgeklebte, aufgedampfte oder galvanisch angebrachte Kupferfolie (7) befindet, die mit einer elastischen Folie geschützt ist und zur Wegerkennung mit kapazitiven Sensoren geeignet ist.Timing belts made of a plastic material or rubber-like material ( 1 ) which consists of a tension member ( 3 ) and a row of teeth connected to it ( 2 ), which consists of teeth arranged one behind the other at a certain distance, with a copper foil (glued, evaporated or galvanically attached) in strips on the back ( 7 ) is located, which is protected with an elastic film and is suitable for path detection with capacitive sensors.
DE200420011502 2004-07-22 2004-07-22 Toothed belt for non contact measurement of distance and speed of the belt using magnetic material for inductive sensing of the distance travelled using magnetic sensors Expired - Lifetime DE202004011502U1 (en)

Priority Applications (1)

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DE200420011502 DE202004011502U1 (en) 2004-07-22 2004-07-22 Toothed belt for non contact measurement of distance and speed of the belt using magnetic material for inductive sensing of the distance travelled using magnetic sensors

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DE200420011502 DE202004011502U1 (en) 2004-07-22 2004-07-22 Toothed belt for non contact measurement of distance and speed of the belt using magnetic material for inductive sensing of the distance travelled using magnetic sensors

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001431B4 (en) * 2005-01-12 2013-01-17 Robert Bosch Gmbh Traction drive, method for detecting the wear of an endless traction means and endless traction means for such a traction mechanism drive
IT202100031577A1 (en) * 2021-12-16 2023-06-16 Ammega Italia S P A BELT EQUIPPED WITH A WEAR INDICATOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005001431B4 (en) * 2005-01-12 2013-01-17 Robert Bosch Gmbh Traction drive, method for detecting the wear of an endless traction means and endless traction means for such a traction mechanism drive
IT202100031577A1 (en) * 2021-12-16 2023-06-16 Ammega Italia S P A BELT EQUIPPED WITH A WEAR INDICATOR
EP4198338A1 (en) * 2021-12-16 2023-06-21 Ammega Italia S.p.A. Belt provided with a wear indicator

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