DE102011089903A1 - Device for detecting angular position of pinion of gear box drive device, has magnetic element whose magnetically active particles are bonded with each other through injection molding process and located on end face of wheel and gear - Google Patents
Device for detecting angular position of pinion of gear box drive device, has magnetic element whose magnetically active particles are bonded with each other through injection molding process and located on end face of wheel and gear Download PDFInfo
- Publication number
- DE102011089903A1 DE102011089903A1 DE102011089903A DE102011089903A DE102011089903A1 DE 102011089903 A1 DE102011089903 A1 DE 102011089903A1 DE 102011089903 A DE102011089903 A DE 102011089903A DE 102011089903 A DE102011089903 A DE 102011089903A DE 102011089903 A1 DE102011089903 A1 DE 102011089903A1
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- Germany
- Prior art keywords
- gear
- magnetic element
- magnetically active
- active particles
- particles
- 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.)
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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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
-
- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
-
- 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
- G01D5/142—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 using Hall-effect devices
- G01D5/145—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 using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
- F16H2055/065—Moulded gears, e.g. inserts therefor
-
- 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
- G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
- G01D2205/80—Manufacturing details of magnetic targets for magnetic encoders
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Einrichtung zur Erfassung der Winkellage eines Getrieberades einer Getriebe-Antriebseinrichtung nach dem Oberbegriff des Anspruchs 1. Ferner betrifft die Erfindung ein Verfahren zum Herstellen einer Einrichtung zur Erfassung der Winkellage eines Getrieberades einer Getriebe-Antriebseinrichtung. The invention relates to a device for detecting the angular position of a gear of a transmission drive device according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a device for detecting the angular position of a gear of a transmission drive device.
Eine Einrichtung nach dem Oberbegriff des Anspruchs 1 ist aus der
Offenbarung der ErfindungDisclosure of the invention
Ausgehend von dem dargestellten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Einrichtung zur Erfassung der Winkellage eines Getrieberades einer Getriebe-Antriebseinrichtung nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass diese zur Gewährleistung einer hohen Positionsgenauigkeit an einem Getrieberad bzw. alternativ an einem Abtriebsrad fertigungstechnisch besonders einfach, sicher und mit hoher Positionsgenauigkeit befestigbar ist. Diese Aufgabe wird erfindungsgemäß bei einer Einrichtung zur Erfassung der Winkellage eines Getrieberades mit den Merkmalen des Anspruchs 1 dadurch gelöst, dass das Magnetelement aus magnetisch wirksamen Teilchen besteht, die in einer Kunststoffmasse gebunden und verteilt angeordnet sind, und dass das Magnetelement vorzugsweise an einer Stirnseite des Getrieberades bzw. des Abtriebsrades mit dem Getrieberad bzw. dem Abtriebsrad im Spritzgussverfahren verbunden ist. Der Erfindung liegt dabei die Idee zugrunde, vorzugsweise durch Anspritzen des Getrieberades bzw. des Antriebsrades an das Magnetelement, vorzugsweise im Bereich der Stirnseite des Getrieberades bzw. des Antriebsrades, eine hochgenaue Positionierung des Magnetelements in Bezug zu dem Getrieberad bzw. zum Abtriebsrad zu erzielen. Dies wird dadurch ermöglicht, dass die magnetisch wirksamen Teilchen in einer Kunststoffmasse gebunden und in dem Spritzgußwerkzeug hochgenau angeordnet sind, so dass das Getrieberad bzw. das Abtriebsrad mit hoher Genauigkeit gegen das Magnetelement angespritzt werden kann.Based on the illustrated prior art, the invention has the object, a device for detecting the angular position of a gear of a transmission drive device according to the preamble of claim 1 such that they to ensure a high positional accuracy on a gear or alternatively on a Output gear manufacturing technology particularly simple, safe and can be fastened with high position accuracy. This object is achieved in a device for detecting the angular position of a gear with the features of claim 1, characterized in that the magnetic element consists of magnetically active particles bound and distributed in a plastic mass, and that the magnetic element preferably at one end of Gear wheel or the output gear is connected to the gear or the output gear by injection molding. The invention is based on the idea, preferably by injecting the gear or the drive wheel to the magnetic element, preferably in the region of the end face of the gear or the drive wheel to achieve a highly accurate positioning of the magnetic element with respect to the gear or the output gear. This is made possible by the fact that the magnetically active particles are bound in a plastic compound and arranged with high precision in the injection molding tool, so that the gear or the output gear can be injection-molded with high accuracy against the magnetic element.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Einrichtung sind in den Unteransprüchen aufgeführt. In den Rahmen der Erfindung fallen sämtliche Kombinationen aus zumindest zwei von in den Ansprüchen, der Beschreibung und/oder den Figuren offenbarten Merkmalen.Advantageous developments of the device according to the invention are listed in the subclaims. All combinations of at least two of the features disclosed in the claims, the description and / or the figures fall within the scope of the invention.
In ganz bevorzugter konstruktiver Ausgestaltung ist der Verbindungsbereich zwischen dem Getrieberad bzw. dem Abtriebrad und dem Magnetelement als Formschlussverbindung ausgebildet. Dadurch wird eine drehfeste Befestigung des Magnetelements an dem Getrieberad bzw. dem Abtriebsrad ermöglicht, die darüber hinaus eine axiale Sicherung des Magnetelements an dem Getrieberad bzw. Abtriebsrad ermöglicht. In a very preferred structural embodiment of the connecting portion between the gear or the driven gear and the magnetic element is designed as a positive connection. As a result, a rotationally fixed attachment of the magnetic element to the gear or the output gear is made possible, which also allows axial securing of the magnetic element to the gear or output gear.
Zur Erzeugung eines möglichst eindeutigen sowie großen Magnetfeldes für das Sensorelement ist es vorgesehen, dass das Magnetelement eine axiale Begrenzung in Richtung zum Sensorelement ausbildet und eine ebene Stirnfläche aufweist, die senkrecht zur Drehachse des Getrieberades bzw. des Abtriebsrades angeordnet ist. Dadurch ist es möglich, das Magnetelement in einem relativ geringen Abstand zum Sensorelement anzuordnen, wobei bei einer Drehung des Getrieberades bzw. des Abtriebsrades das Magnetelement stets denselben Abstand zur Oberfläche des Sensorelements aufweist. To generate a magnetic field as clear as possible and large for the sensor element, it is provided that the magnetic element forms an axial boundary in the direction of the sensor element and has a flat end face, which is arranged perpendicular to the axis of rotation of the gear or the driven wheel. This makes it possible to arrange the magnetic element in a relatively small distance from the sensor element, wherein upon rotation of the gear or the driven wheel, the magnetic element always has the same distance from the surface of the sensor element.
Dadurch, dass das Magnetelement sehr präzise zu dem Getrieberad bzw. dem Abtriebsrad angeordnet werden kann, ist es – im Gegensatz zum Stand der Technik – möglich, einen relativ geringen Abstand zum Sensorelement vorzusehen. Dies ermöglicht neben der Verwendung von (relativ teuren) seltenen Erden für die magnetisch wirksamen Teilchen auch die Verwendung von Magnetteilchen, deren Magnetfeld gegenüber dem Magnetfeld von Magneten, die aus seltenen Erden bestehen, geringer ist. Dadurch lassen sich bei der zuletzt genannten Variante die Herstellkosten des Magnetelements verringern.The fact that the magnetic element can be arranged very precisely to the gear or the output gear, it is - in contrast to the prior art - possible to provide a relatively small distance from the sensor element. This allows not only the use of (relatively expensive) rare earths for the magnetically active particles but also the use of magnetic particles whose magnetic field lower than the magnetic field of magnets made of rare earths. As a result, the manufacturing costs of the magnetic element can be reduced in the latter variant.
Die Erfindung umfasst auch ein Verfahren zum Herstellen einer Einrichtung zur Erfassung der Winkellage eines Getrieberades einer Getriebeantriebseinrichtung, wobei ein Magnetelement an einem stirnseitigen Endbereich eines Getrieberades oder eines Abtriebsrades angeordnet ist. Dabei ist es erfindungsgemäß vorgesehen, dass das Magnetelement als Verbundteil ausgebildet wird, das in einer Kunststoff-Grundmasse angeordnete magnetisch wirksame Teilchen und dass die Kunststoff-Grundmasse in einem Spritzgußwerkzeug mit dem stirnseitigen Endbereich des Getrieberades oder des Abtriebsrades durch ein Spritzgussverfahren verbunden wird.The invention also includes a method for producing a device for detecting the angular position of a gear wheel of a gear drive device, wherein a magnetic element is arranged on a front end region of a gear wheel or a driven wheel. It is inventively provided that the magnetic element is formed as a composite part, the arranged in a plastic matrix magnetically active particles and that the plastic matrix is connected in an injection mold with the front end portion of the gear or the driven wheel by an injection molding process.
In einer ersten Variante des Herstellverfahrens kann es vorgesehen sein, dass als magnetisch wirksame Teilchen vormagnetisierte Teilchen verwendet werden. Unter magnetischen Teilchen werden dabei vormagnetisierte Teilchen verstanden, so dass nach dem Anspritzen des Magnetelements keine weiteren Herstellungsschritte bezüglich der Erzeugung eines Magnetfeldes für das Magnetelement erforderlich sind. In a first variant of the production method, provision may be made for particles which are magnetized to be premagnetized particles to be used. Magnetic particles are understood to mean premagnetized particles, so that after the injection of the magnetic element, no further production steps are required with respect to the generation of a magnetic field for the magnetic element.
In einer alternativen Ausgestaltung der Erfindung ist es auch denkbar, dass die magnetisch wirksamen Teilchen im Bereich des Spritzgusswerkzeuges magnetisiert werden. In an alternative embodiment of the invention, it is also conceivable that the magnetically active particles are magnetized in the region of the injection molding tool.
Wiederum in alternativer Ausgestaltung ist es vorgesehen, dass das Magnetisieren der magnetisch wirksamen Teilchen erst nach der Entnahme aus dem Spritzgusswerkzeug in einer separaten Einrichtung erfolgt. Dadurch wird der Aufbau des Spritzgusswerkzeugs besonders einfach gehalten. Darüber hinaus wird ein Entmagnetisieren von magnetisch wirksamen Teilchen vermieden, das ansonsten auftreten kann, wenn bei dem Erhitzen der Kunststoff-Grundmasse oder beim Anspritzen des Getrieberades bzw. des Abtriebsrades die magnetisch wirksamen Teilchen zu stark erwärmt werden (Curie-Temperatur). Again in an alternative embodiment, it is provided that the magnetization of the magnetically active particles takes place only after removal from the injection molding tool in a separate device. As a result, the structure of the injection molding tool is kept particularly simple. In addition, a demagnetization of magnetically active particles is avoided, which can otherwise occur when the magnetically active particles are heated too high (Curie temperature) during heating of the plastic matrix or during injection molding of the gear or the driven gear.
Bei einer Magnetisierung der magnetisch wirksamen Teilchen entweder innerhalb des Spritzgusswerkzeuges, oder im Bereich einer separaten Einrichtung kann die Magnetisierung der metallischen Teilchen durch eine Magnetisierspule oder durch einen Permanentmagneten erfolgen. In a magnetization of the magnetically active particles either within the injection molding tool, or in the range of a separate device, the magnetization of the metallic particles can be effected by a magnetizing coil or by a permanent magnet.
Ganz besonders bevorzugt ist es, wenn die Magnetisierung der magnetisch wirksamen Teilchen noch im flüssigen Zustand der Kunststoff-Grundmasse erfolgt. Dies hatte den besonderen Vorteil, dass sich dadurch die metallischen Teilchen innerhalb des (flüssigen) Kunststoffs orientieren können, so dass ein besonders starkes Magnetfeld erzeugt werden kann. It is very particularly preferred if the magnetization of the magnetically active particles still takes place in the liquid state of the plastic matrix. This has the particular advantage that it allows the metallic particles within the (liquid) plastic to orient, so that a particularly strong magnetic field can be generated.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung. Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing.
Diese zeigt in:This shows in:
Gleiche Bauteile bzw. Bauteile mit gleicher Funktion sind in den Figuren mit den gleichen Bezugsziffern versehen. The same components or components with the same function are provided in the figures with the same reference numerals.
In der
Zur Steuerung des Komfortantriebs ist es erforderlich, die Winkelstellung des Getrieberades
Erfindungsgemäß ist es vorgesehen, dass das Magnetelement
Erfindungswesentlich ist, dass die Verbindung zwischen dem Magnetelement
In der
Die soweit beschriebene Getriebe-Antriebseinrichtung
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 1412603 B1 [0002, 0026] EP 1412603 B1 [0002, 0026]
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011089903A DE102011089903A1 (en) | 2011-12-27 | 2011-12-27 | Device for detecting angular position of pinion of gear box drive device, has magnetic element whose magnetically active particles are bonded with each other through injection molding process and located on end face of wheel and gear |
| CN2012105639629A CN103185540A (en) | 2011-12-27 | 2012-12-24 | Device for detecting angular position of pinion of gear box drive device and method for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011089903A DE102011089903A1 (en) | 2011-12-27 | 2011-12-27 | Device for detecting angular position of pinion of gear box drive device, has magnetic element whose magnetically active particles are bonded with each other through injection molding process and located on end face of wheel and gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102011089903A1 true DE102011089903A1 (en) | 2013-06-27 |
Family
ID=48575400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102011089903A Withdrawn DE102011089903A1 (en) | 2011-12-27 | 2011-12-27 | Device for detecting angular position of pinion of gear box drive device, has magnetic element whose magnetically active particles are bonded with each other through injection molding process and located on end face of wheel and gear |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103185540A (en) |
| DE (1) | DE102011089903A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091918A (en) * | 2016-06-22 | 2016-11-09 | 清华大学 | A kind of dynamic measures the device and method of mechanical transmission clutch collar angular displacement |
| DE102016007590A1 (en) * | 2016-06-21 | 2017-12-21 | Thomas Magnete Gmbh | Method for producing a coil assembly for an electromagnet |
| DE102020132148A1 (en) | 2020-12-03 | 2022-06-09 | MS-Schramberg Holding GmbH | Composite component, in particular magnetic composite component, and method for the production thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020110204A1 (en) * | 2020-04-14 | 2021-10-14 | Illinois Tool Works Inc. | Ejector element for a belt lock sensor with a trigger and a belt lock with such an ejector element |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1412603B1 (en) | 2001-07-18 | 2007-12-19 | Robert Bosch Gmbh | Gear drive unit with speed measurement |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10207399A1 (en) * | 2001-02-24 | 2002-09-12 | Marquardt Gmbh | Electrical rotary switch for adjusting angles of rotation has a rotor on a stator adjusting between angular rotary positions and moving a permanent magnetic field sensor and a Hall sensor to create a signal for an angle of rotation. |
| CN101216324B (en) * | 2008-01-18 | 2011-07-06 | 浙江飞亚电子有限公司 | Angular displacement sensor |
| DE102008011448A1 (en) * | 2008-02-27 | 2009-09-03 | Valeo Schalter Und Sensoren Gmbh | Arrangement for detecting a rotation angle |
| US8901921B2 (en) * | 2009-11-25 | 2014-12-02 | Infineon Technologies Ag | Angle measurement system for determining an angular position of a rotating shaft |
| DE102010015366B4 (en) * | 2010-01-04 | 2015-04-02 | Oechsler Aktiengesellschaft | Angle of rotation sensor system and method for its manufacture |
-
2011
- 2011-12-27 DE DE102011089903A patent/DE102011089903A1/en not_active Withdrawn
-
2012
- 2012-12-24 CN CN2012105639629A patent/CN103185540A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1412603B1 (en) | 2001-07-18 | 2007-12-19 | Robert Bosch Gmbh | Gear drive unit with speed measurement |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016007590A1 (en) * | 2016-06-21 | 2017-12-21 | Thomas Magnete Gmbh | Method for producing a coil assembly for an electromagnet |
| DE102016007590B4 (en) | 2016-06-21 | 2022-12-29 | Thomas Magnete Gmbh | Method of manufacturing a coil assembly for an electromagnet |
| CN106091918A (en) * | 2016-06-22 | 2016-11-09 | 清华大学 | A kind of dynamic measures the device and method of mechanical transmission clutch collar angular displacement |
| CN106091918B (en) * | 2016-06-22 | 2019-07-02 | 清华大学 | A device and method for dynamically measuring the angular displacement of a mechanical transmission coupling sleeve |
| DE102020132148A1 (en) | 2020-12-03 | 2022-06-09 | MS-Schramberg Holding GmbH | Composite component, in particular magnetic composite component, and method for the production thereof |
| DE102020132148B4 (en) | 2020-12-03 | 2024-12-05 | MS-Schramberg Holding GmbH | Magnetic composite component, method for producing and use of the magnetic composite component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103185540A (en) | 2013-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |