WO2015082512A2 - Hydrodynamic machine having a measuring system - Google Patents

Hydrodynamic machine having a measuring system Download PDF

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Publication number
WO2015082512A2
WO2015082512A2 PCT/EP2014/076337 EP2014076337W WO2015082512A2 WO 2015082512 A2 WO2015082512 A2 WO 2015082512A2 EP 2014076337 W EP2014076337 W EP 2014076337W WO 2015082512 A2 WO2015082512 A2 WO 2015082512A2
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WO
WIPO (PCT)
Prior art keywords
shaft
sensor
torque
housing
measuring system
Prior art date
Application number
PCT/EP2014/076337
Other languages
German (de)
French (fr)
Other versions
WO2015082512A3 (en
Inventor
Hartmut Frenz
Thorsten Lührs
Markus Schlosser
Volker Middelmann
Original Assignee
Voith Patent 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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to CN201490001227.1U priority Critical patent/CN206067729U/en
Publication of WO2015082512A2 publication Critical patent/WO2015082512A2/en
Publication of WO2015082512A3 publication Critical patent/WO2015082512A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
    • B60T10/02—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrodynamic brake
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means

Definitions

  • the invention relates to a device for transmitting a torque, in particular for a hydrodynamic machine, with a measuring system having the features of the preamble of claim 1.
  • Hydrodynamic systems in particular in the form of hydrodynamic brake devices, also called retarders, are known in a large number of designs from the prior art.
  • these comprise a first blade wheel acting as a rotor, which is rotatably connected or connectable to a shaft to be braked, and a stator, which is fastened to a stationary component, in particular a housing, and is supported on it.
  • the rotor and the stator form a working space that can be filled with operating fluid, wherein the operating medium generates a braking torque when it is circulated through the rotor on the stator.
  • the brake torque that can be generated depends on many parameters. Thus, manufacturing tolerances have an influence on the function of the retarder. These cause, for example, that there are deviations between the desired and actually acting braking torque. A theoretically achievable braking torque could thus remain unused or there are undesirably large deviations in the other direction, for example, reaction deviations may occur.
  • measuring systems which measure the braking torque acting, as disclosed, for example, in DE10 2005 052 105.
  • a system is proposed in which a device for detecting the supporting torque between the stator and the housing is used.
  • DE10 201 1 010 153 it is proposed to measure the torque directly on the shaft, which is rotatably connected to the rotor.
  • two shaft sections are provided on the shaft, which consist of a ferromagnetic material and which correspond with a respective magnetic field sensor. The angle change, with torsion of the shaft, is a measure of the applied torque.
  • the physical measuring principle of magnetostriction has been known for a long time, in which a steel shaft in the measuring region, a shaft section region, is magnetized in such a way that a permanent magnetic field of suitable structure results. Under torsion, the magnetic flux density changes in the vicinity of the shaft and as a result, the inductance of the adjacent housing-fixed coil. With a suitable electrical circuit, the inductance change can be converted into a torque-proportional measurement signal. This measurement is made without contact.
  • a disadvantage of this type of measurement is that the measurement signal depends strongly on the radial distance between the coil and the shaft or magnetic shaft section range. If the distance changes, measuring errors occur at the measuring points. Therefore, at least two measuring points are required offset by 180 °, so that by averaging the signals of the error can be eliminated.
  • the shaft is surrounded at the measuring points by a respective ring, which holds the measuring coils in position. Replacing this ring is only possible with very large assembly costs. Since the price and the lifetime of the sensors are very small in relation to the entire machine, this assembly unfriendliness is a major obstacle.
  • One of the objects of the invention is to obviate the drawbacks and to provide a device in which the measuring system for detecting a variable characterizing the torque is improved.
  • Claim 1 describes the solution according to the invention of the task. Further advantageous embodiments and preferred variants of the solution are described in the subclaims dependent thereon.
  • a device with a measuring system for measuring a torque is proposed, which makes it possible to change the sensor very easily and to align it with respect to a shaft section surface.
  • a sensor with sensor shaft which can be inserted and aligned in an opening located in the housing, extending radially in the direction of the shaft axis from the outside.
  • two gears can be arranged rotationally fixed, via which a torque is passed on or off.
  • a shaft portion is provided, which has a shaft portion of a ferromagnetic material.
  • This shaft section region can be formed by a ring, which consists of a ferromagnetic material at least on its peripheral surface.
  • the senor can be used in a unique position in the housing, stop means may be provided on the sensor and / or on the housing. These slings can be made adjustable. Furthermore, a screw, a spring element and / or ribs may be provided on the sensor housing for fixing the sensor.
  • the sensor shaft and the opening in the housing may have a prismatic or cylindrical basic shape.
  • the sensor in the sensor head in addition to a measuring coil also include a compensation coil and / or a temperature sensor, whereby certain tolerances and temperature fluctuations can be calculated out of the measured value.
  • two or more sensors can be radially arranged in the housing, aligned with the shaft axis.
  • the shaft may be the shaft of a transmission, in particular the shaft of a transmission coupled to a hydrodynamic machine.
  • Figure 1 shows an example of a device with shaft and measuring system
  • Figure 2 shows a sensor
  • Figure 1 shows an example of a device with shaft 5 and measuring system.
  • the measuring system includes an electronic circuit 14 with a voltage input for power supply and an output for the measurement signal.
  • This electronic circuit feeds the coil with a high-frequency oscillation signal in the kHz range.
  • the magnetic flux density is determined metrologically from the required time to inductive saturation of the respective coil. This result is finally processed into a stable standardized measurement signal.
  • an averaging is provided in the circuit 14 in which the signals from a plurality of sensors 1 can be processed.
  • the shaft section region 3 is preferably to be arranged on the shaft 5 in such a way that the greatest possible elastic deformation takes place in order to obtain the most accurate possible measurement result.
  • the measuring point for the torque is in the illustrated embodiment between the gears 15 a, b, arranged in the mechanical power flow 16 between the torque input and torque output.
  • these gears 15a, b as shown here, with a transmission gear 17 and the high-speed gear 18 of the retarder are engaged.
  • a speed sensor 6 is positioned on the shaft 5, so that the torque which can be achieved in accordance with the characteristic field of the retarder can be determined with reference to the rotational speed.
  • the sensors 1 are arranged at a location at which the shaft 5 has a particularly large diameter, so that the sensor can be arranged as accessible as possible in the housing.
  • the sensors 1 are installed in the housing such that no additional axial abdominal space is stressed and, nevertheless, good accessibility for replacement of the sensors is ensured.
  • the sensors 1 can be used in the housing 8 via the opening 19 extending radially to the shaft axis. In the sensor head 10 at the end of the sensor shaft 9, the measuring sensors are installed.
  • the sensor 1 also has a fastener 1 1, which also serves as a stop, so that the sensor can be installed only with a defined distance to the shaft.
  • the senor 1 is shown separately. It consists of the sensor head 10, the Sensorschafft 9, the attachment 1 1 and the connector housing 12 by the plug contacts 13 are positioned.
  • the sensor shaft shown here is cylindrical, although any other prismatic shape can be used.
  • the attachment 1 1 and a screw By means of the attachment 1 1 and a screw, the sensor 1 is held in the housing opening 19 in its position.
  • further adjusting devices can be provided, by means of which the sensor can be aligned in the radial as well as in the axial direction.
  • a board is integrated, on which the circuit 14, the measuring coils as well as the temperature sensor are arranged.
  • the board extends from the sensor head 10 to the electrical connections on the connector housing 12.
  • the measuring coils, compensation coils and possibly the temperature sensor are mounted on the front end (in the sensor head) on the board.
  • the board may be molded with a thermoset or thermoplastic material to the housing.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention relates to a device for transmitting a torque, in particular for a hydrodynamic machine, having a measuring system, comprising a housing (6), a shaft (5) having a first means (15a) for inputting a torque into the shaft (5) and a second means (15b) for outputting the torque, wherein the means (15a, b) are spaced apart from one another in the axial direction, such that, when a torque is transmitted in the shaft section between the means (15a, b), a torsional force acts, wherein the measuring system consists of at least one sensor (1) and of a shaft section surface (3) made of ferromagnetic material. For improvement of the known measurement systems a device structure is proposed, in which the sensor (1) has a sensor shank (9) and the housing (6) has an opening (19) extend radially in the direction of the shaft axis, wherein said sensor shaft and said opening are configured in such a way that the sensor (1) can be introduced from the exterior and oriented relative to the shaft section surface (3).

Description

Hydrodynamische Maschine mit Messsvstem  Hydrodynamic machine with measuring system
Die Erfindung betrifft eine Vorrichtung zur Übertragung eines Drehmomentes, insbe- sondere für eine hydrodynamische Maschine, mit einem Messsystem, mit den Merkmalen aus dem Oberbegriff des Anspruchs 1 . The invention relates to a device for transmitting a torque, in particular for a hydrodynamic machine, with a measuring system having the features of the preamble of claim 1.
Hydrodynamische Systeme, insbesondere in Form von hydrodynamischen Bremseinrichtungen, auch Retarder genannt, sind in einer Vielzahl von Ausführungen aus dem Stand der Technik bekannt. Diese umfassen in der Regel ein als Rotor fungierendes erstes Schaufelrad, das mit einer abzubremsenden Welle drehfest verbunden oder verbindbar ist und einen Stator, welcher an einem ortsfesten Bauteil, insbesondere einem Gehäuse, befestigt ist und sich an diesem abstützt. Rotor und Stator bilden einen mit Betriebsmittel befüllbaren Arbeitsraum, wobei das Betriebsmittel bei Umwälzung durch den Rotor am Stator ein Bremsmoment erzeugt. Das erzeugbare Bremsmoment hängt von vielen Parametern ab. So haben auch Fertigungstoleranzen einen Einfluss auf die Funktion des Retarders. Diese bewirken beispielsweise, dass es zu Abweichungen zwischen gewünschtes und tatsächlich wirkendes Bremsmoment kommt. Ein theoretisch erreichbares Bremsmoment könnte dadurch ungenutzt bleiben oder es treten unerwünscht starke Abweichungen in anderer Richtung auf, zum Beispiel können Reaktionsabweichungen auftreten. Hydrodynamic systems, in particular in the form of hydrodynamic brake devices, also called retarders, are known in a large number of designs from the prior art. As a rule, these comprise a first blade wheel acting as a rotor, which is rotatably connected or connectable to a shaft to be braked, and a stator, which is fastened to a stationary component, in particular a housing, and is supported on it. The rotor and the stator form a working space that can be filled with operating fluid, wherein the operating medium generates a braking torque when it is circulated through the rotor on the stator. The brake torque that can be generated depends on many parameters. Thus, manufacturing tolerances have an influence on the function of the retarder. These cause, for example, that there are deviations between the desired and actually acting braking torque. A theoretically achievable braking torque could thus remain unused or there are undesirably large deviations in the other direction, for example, reaction deviations may occur.
Um diese Problematik zu vermeiden, werden Messsysteme eingesetzt, die das wirkende Bremsmoment messen, wie z.B. in der DE10 2005 052 105 offenbart. Hier wird ein System vorgeschlagen, bei dem eine Einrichtung zur Erfassung des Stützmomentes zwischen Stator und Gehäuse eingesetzt wird. In der DE10 201 1 010 153 wird vorgeschlagen, das Drehmoment direkt an der Welle zu messen, die mit dem Rotor drehfest verbunden ist. Zur Messung sind auf der Welle zwei Wellenabschnitte vorgesehen, die aus einem ferromagnetischen Material bestehen und die mit jeweils einem Magnetfeldsensor korrespondieren. Die Winkelveränderung, bei Torsion der Welle, ist ein Maß für das anliegende Drehmoment. Das physikalische Messprinzip der Magnetostriktion ist seit langem bekannt, dabei wird eine Stahlwelle im Messbereich, einem Wellenabschnittsbereich, so magnetisiert, dass sich ein dauerhaftes Magnetfeld von geeigneter Struktur ergibt. Unter Torsion verändert sich die magnetische Flussdichte im Umfeld der Welle und in dessen Folge die Induktivität der benachbarten gehäusefesten Spule. Mit einer geeigneten elektrischen Schaltung kann die Induktivitätsänderung in ein drehmomentproportionales Messsignal umgewandelt werden. Diese Messung erfolgt berührungslos. In order to avoid this problem, measuring systems are used which measure the braking torque acting, as disclosed, for example, in DE10 2005 052 105. Here, a system is proposed in which a device for detecting the supporting torque between the stator and the housing is used. In DE10 201 1 010 153 it is proposed to measure the torque directly on the shaft, which is rotatably connected to the rotor. For measuring two shaft sections are provided on the shaft, which consist of a ferromagnetic material and which correspond with a respective magnetic field sensor. The angle change, with torsion of the shaft, is a measure of the applied torque. The physical measuring principle of magnetostriction has been known for a long time, in which a steel shaft in the measuring region, a shaft section region, is magnetized in such a way that a permanent magnetic field of suitable structure results. Under torsion, the magnetic flux density changes in the vicinity of the shaft and as a result, the inductance of the adjacent housing-fixed coil. With a suitable electrical circuit, the inductance change can be converted into a torque-proportional measurement signal. This measurement is made without contact.
Nachteilig an dieser Art der Messung ist, dass das Messsignal stark vom radialen Abstand zwischen Spule und Welle bzw. magnetischen Wellenabschnittsbereich abhängt. Ändert sich der Abstand ergeben sich an den Messstellen Messfehler. Deshalb werden mindestens zwei Messstellen um 180° versetzt benötigt, sodass durch Mittelwertbildung der Signale der Fehler eliminiert werden kann. A disadvantage of this type of measurement is that the measurement signal depends strongly on the radial distance between the coil and the shaft or magnetic shaft section range. If the distance changes, measuring errors occur at the measuring points. Therefore, at least two measuring points are required offset by 180 °, so that by averaging the signals of the error can be eliminated.
In der offenbarten Ausführung wird die Welle an den Messstellen von jeweils einem Ring umgeben, der die Messspulen in Position hält. Diesen Ring auszutauschen, ist nur mit sehr großem Montageaufwand möglich. Da der Preis und die Lebensdauer der Sensoren im Verhältnis zur gesamten Maschine sehr klein sind, ist diese Montageunfreundlichkeit ein großes Hindernis. In the disclosed embodiment, the shaft is surrounded at the measuring points by a respective ring, which holds the measuring coils in position. Replacing this ring is only possible with very large assembly costs. Since the price and the lifetime of the sensors are very small in relation to the entire machine, this assembly unfriendliness is a major obstacle.
Eine der Aufgaben der Erfindung ist es, die Nachteile zu vermeiden und eine Vorrichtung anzugeben, bei welcher das Messsystem, zur Erfassung einer das Drehmoment charakterisierenden Größe, verbessert wird. One of the objects of the invention is to obviate the drawbacks and to provide a device in which the measuring system for detecting a variable characterizing the torque is improved.
Anspruch 1 beschreibt die erfindungsgemäße Lösung der Aufgabe. Weitere vorteilhafte Ausgestaltungen und bevorzugte Lösungsvarianten sind in den hiervon abhängigen Unteransprüchen beschrieben. Claim 1 describes the solution according to the invention of the task. Further advantageous embodiments and preferred variants of the solution are described in the subclaims dependent thereon.
Erfindungsgemäß wird eine Vorrichtung mit einem Messsystem zur Messung eines Drehmoments vorgeschlagen, die es ermöglicht, den Sensor sehr einfach zu wechseln und gegenüber einer Wellenabschnittsfläche auszurichten. According to the invention, a device with a measuring system for measuring a torque is proposed, which makes it possible to change the sensor very easily and to align it with respect to a shaft section surface.
Dazu wird vorgeschlagen, einen Sensor mit Sensorschaft zu verwenden, der in eine, im Gehäuse befindliche, radial in Richtung zur Wellenachse verlaufende Öffnung von außen eingesetzt und ausgerichtet werden kann. Auf der Welle können beispielsweise zwei Zahnräder drehfest angeordnet sein, über die ein Drehmoment ein bzw. aus geleitet wird. Zwischen den Zahnrädern ist ein Wellenabschnitt vorgesehen, der einen Wellenabschnittsbereich aus einem ferromag- netischen Material aufweist. Dieser Wellenabschnittsbereich kann durch einen Ring gebildet werden, der zumindest an seiner Umfangsfläche aus einem ferromagneti- schen Material besteht. For this purpose, it is proposed to use a sensor with sensor shaft, which can be inserted and aligned in an opening located in the housing, extending radially in the direction of the shaft axis from the outside. On the shaft, for example, two gears can be arranged rotationally fixed, via which a torque is passed on or off. Between the gears, a shaft portion is provided, which has a shaft portion of a ferromagnetic material. This shaft section region can be formed by a ring, which consists of a ferromagnetic material at least on its peripheral surface.
Damit der Sensor in einer eindeutigen Position in das Gehäuse eingesetzt werden kann, können am Sensor und/oder am Gehäuse Anschlagmittel vorgesehen sein. Diese Anschlagmittel können einstellbar ausgeführt sein. Weiterhin kann zur Fixierung des Sensors eine Schraube, ein Federelement und/oder Rippen am Sensorgehäuse vorgesehen sein. Thus, the sensor can be used in a unique position in the housing, stop means may be provided on the sensor and / or on the housing. These slings can be made adjustable. Furthermore, a screw, a spring element and / or ribs may be provided on the sensor housing for fixing the sensor.
Um eine ideale Ausrichtung des Sensors gegenüber der Wellenachse in Axialrichtung zu erreichen, können der Sensorschaft und die Öffnung im Gehäuse eine prismatische oder zylindrische Grundform aufweisen. Weiterhin kann der Sensor im Sensorkopf neben einer Messspule auch eine Kompensationsspule und/oder einen Temperatursensor enthalten, wodurch gewisse Toleranzen und Temperaturschwankungen aus dem Messwert herausgerechnet werden können. In order to achieve an ideal alignment of the sensor relative to the shaft axis in the axial direction, the sensor shaft and the opening in the housing may have a prismatic or cylindrical basic shape. Furthermore, the sensor in the sensor head in addition to a measuring coil also include a compensation coil and / or a temperature sensor, whereby certain tolerances and temperature fluctuations can be calculated out of the measured value.
Zur Weiteren Verbesserung des Messergebnisses können zwei oder mehr Sensoren strahlenförmig, auf die Wellenachse ausgerichtet, im Gehäuse angeordnet sein. To further improve the measurement result, two or more sensors can be radially arranged in the housing, aligned with the shaft axis.
Die Welle kann die Welle eines Getriebes, insbesondere die Welle eines an eine hydrodynamische Maschine gekoppelten Getriebes, sein. The shaft may be the shaft of a transmission, in particular the shaft of a transmission coupled to a hydrodynamic machine.
Weitere Merkmale der erfindungsgemäßen Vorrichtung und weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausfüh- rungsbeispiele unter Bezugnahme auf die Zeichnungen. Further features of the device according to the invention and further advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.
Nachfolgend wird die Erfindung anhand von Skizzen näher erläutert. The invention will be explained in more detail with reference to drawings.
In diesen zeigen: In these show:
Figur 1 beispielhaft eine Vorrichtung mit Welle und Messsystem Figur 2 einen Sensor Figure 1 shows an example of a device with shaft and measuring system Figure 2 shows a sensor
Figur 1 zeigt beispielhaft eine Vorrichtung mit Welle 5 und Messsystem. Zum Messsystem gehört eine elektronische Schaltung 14 mit einem Spannungseingang zur Energieversorgung und einen Ausgang für das Messsignal. Diese elektronische Schaltung speist die Spule mit einem hochfrequenten Schwingungssignal im kHz- Bereich. Die magnetische Flussdichte wird messtechnisch aus der benötigten Laufzeit bis zur induktiven Sättigung der jeweiligen Spule bestimmt. Dieses Ergebnis wird schließlich in ein stabiles standardisiertes Messsignal aufbereitet. Zur Fehlerkompen- sation ist in der Schaltung 14 eine Mittelwertbildung vorgesehen, in der die Signale von mehreren Sensoren 1 verarbeitet werden können. Der Wellenabschnittsbereich 3 ist vorzugsweise derart auf der Welle 5 anzuordnen, dass es zu einer größtmöglichen elastischen Verformung kommt, um ein möglichst genaues Messergebnis zu erhalten. Figure 1 shows an example of a device with shaft 5 and measuring system. The measuring system includes an electronic circuit 14 with a voltage input for power supply and an output for the measurement signal. This electronic circuit feeds the coil with a high-frequency oscillation signal in the kHz range. The magnetic flux density is determined metrologically from the required time to inductive saturation of the respective coil. This result is finally processed into a stable standardized measurement signal. For error compensation, an averaging is provided in the circuit 14 in which the signals from a plurality of sensors 1 can be processed. The shaft section region 3 is preferably to be arranged on the shaft 5 in such a way that the greatest possible elastic deformation takes place in order to obtain the most accurate possible measurement result.
Die Messstelle für das Drehmoment ist in der dargestellten Ausführung zwischen den Zahnrädern 15 a, b, im mechanischen Leistungsfluss 16 zwischen der Momentenein- und Momentenausleitung, angeordnet. In einer Retarderanordnung bzw. zwischen Retarder und Getriebe können diese Zahnräder 15a, b, wie hier dargestellt, mit einem Getriebezahnrad 17 und dem Hochtriebszahnrad 18 des Retarders in Eingriff stehen. The measuring point for the torque is in the illustrated embodiment between the gears 15 a, b, arranged in the mechanical power flow 16 between the torque input and torque output. In a retarder arrangement or between the retarder and the gear, these gears 15a, b, as shown here, with a transmission gear 17 and the high-speed gear 18 of the retarder are engaged.
Weiterhin ist an der Welle 5 ein Drehzahlsensor 6 positioniert, sodass das entspre- chend dem Kennfeld des Retarders erreichbare Drehmoment im Bezug auf die Drehzahl ermittelt werden kann. Furthermore, a speed sensor 6 is positioned on the shaft 5, so that the torque which can be achieved in accordance with the characteristic field of the retarder can be determined with reference to the rotational speed.
Von Vorteil ist es, wenn die Sensoren 1 an einer Stelle angeordnet sind, an der die Welle 5 einen besonders großen Durchmesser aufweist, sodass der Sensor im Gehäuse möglichst gut zugänglich angeordnet werden kann. In der hier gezeigten Ausführung sind die Sensoren 1 derart im Gehäuse eingebaut, dass kein zusätzlicher axialer Bauchraum beansprucht wird und trotzdem eine gute Zugänglichkeit zum Austausch der Sensoren gewährleistet ist. It is advantageous if the sensors 1 are arranged at a location at which the shaft 5 has a particularly large diameter, so that the sensor can be arranged as accessible as possible in the housing. In the embodiment shown here, the sensors 1 are installed in the housing such that no additional axial abdominal space is stressed and, nevertheless, good accessibility for replacement of the sensors is ensured.
Die Sensoren 1 können über die radial zur Wellenachse verlaufende Öffnung 19 im Gehäuse 8 eingesetzt werden. Im Sensorkopf 10 am Ende des Sensorschafts 9 sind die Messsensoren eingebaut. Der Sensor 1 weist außerdem ein Befestigungselement 1 1 auf, welches gleichzeitig als Anschlag dient, sodass der Sensor nur mit einem definierten Abstand zur Welle eingebaut werden kann. The sensors 1 can be used in the housing 8 via the opening 19 extending radially to the shaft axis. In the sensor head 10 at the end of the sensor shaft 9, the measuring sensors are installed. The sensor 1 also has a fastener 1 1, which also serves as a stop, so that the sensor can be installed only with a defined distance to the shaft.
In Figur 2 ist der Sensor 1 separat dargestellt. Er besteht aus dem Sensorkopf 10, dem Sensorschafft 9, der Befestigung 1 1 und dem Steckergehäuse 12 indem die Steckkontakte 13 positioniert sind. In Figure 2, the sensor 1 is shown separately. It consists of the sensor head 10, the Sensorschafft 9, the attachment 1 1 and the connector housing 12 by the plug contacts 13 are positioned.
Der hier gezeigte Sensorschaft ist zylindrisch ausgeführt, wobei auch jede andere prismatische Form verwendet werden kann. Mittels der Befestigung 1 1 und einer Schraube wird der Sensor 1 in der Gehäuseöffnung 19 auf seiner Position gehalten. Hier können weiterhin Stellvorrichtungen vorgesehen sein, mittels denen der Sensor in radialer wie auch in axialer Richtung ausgerichtet werden kann. The sensor shaft shown here is cylindrical, although any other prismatic shape can be used. By means of the attachment 1 1 and a screw, the sensor 1 is held in the housing opening 19 in its position. Here, further adjusting devices can be provided, by means of which the sensor can be aligned in the radial as well as in the axial direction.
Im Sensor 1 ist eine Platine integriert, auf der die Schaltung 14, die Messspulen wie auch der Temperatursensor angeordnet sind. Die Platine erstreckt sich vom Sensorkopf 10 bis zu den elektrischen Anschlüssen am Steckergehäuse 12. Die Messspulen, Kompensationsspulen und ggf. der Temperatursensor sind am vorderen Ende (im Sensorkopf) auf der Platine angebracht. Die Platine kann mit einem duroplastischen oder termoplastischen Material mit dem Gehäuse vergossen sein. In the sensor 1, a board is integrated, on which the circuit 14, the measuring coils as well as the temperature sensor are arranged. The board extends from the sensor head 10 to the electrical connections on the connector housing 12. The measuring coils, compensation coils and possibly the temperature sensor are mounted on the front end (in the sensor head) on the board. The board may be molded with a thermoset or thermoplastic material to the housing.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Sensor sensor
Anschlag  attack
magnetisierter Bereich magnetised area
Lager camp
Welle  wave
Drehzahlsensor Speed sensor
Messstelle für DrehzahlMeasuring point for speed
Gehäuse casing
Sensorschaft sensor shaft
Sensorkopfsensor head
Befestigungattachment
Steckergehäuseplug housing
Steckkontaktplug contact
Schaltungcircuit
a,b Zahnrad a, b gear
Kraftfluss  power flow
Getriebezahnrad transmission gear
HochtriebszahnradHigh drive gear
Gehäuseöffnung housing opening

Claims

Patentansprüche claims
1 . Vorrichtung zur Übertragung eines Drehmomentes, insbesondere für eine hydrodynamische Maschine, mit einem Messsystem, umfassend ein Gehäuse (6), eine Welle (5) mit einem ersten Mittel (15a) zum Einleiten eines Drehmomentes in die Welle (5) und einem zweiten Mittel (15b) zum Ausleiten des Drehmomentes, wobei die Mittel (15a, b) in axialer Richtung voneinander beabstandet sind, sodass bei Momentenübertragung im Wellenabschnitt zwischen den Mitteln (15a,b) eine Torsionskraft wirkt, wobei das Messsystem aus zumindest einem Sensor (1 ) und einer Wellenabschnittsfläche (3) aus ferromagnetischem Material besteht, 1 . Device for transmitting a torque, in particular for a hydrodynamic machine, comprising a measuring system comprising a housing (6), a shaft (5) having a first means (15a) for introducing a torque into the shaft (5) and a second means (15) 15b) for removing the torque, wherein the means (15a, b) are spaced apart in the axial direction, so that when torque transmission in the shaft portion between the means (15a, b) acts a torsional force, the measuring system of at least one sensor (1) and a shaft section surface (3) made of ferromagnetic material,
dadurch gekennzeichnet,  characterized,
dass der Sensor (1 ) einen Sensorschaft (9) aufweist und das Gehäuse (6) eine radial in Richtung zur Wellenachse verlaufende Öffnung (19) aufweist, die derart gestaltet sind, dass der Sensor (1 ) von außen eingeführt und gegenüber der Wellenabschnittsfläche (3) ausgerichtet werden kann.  in that the sensor (1) has a sensor shaft (9) and the housing (6) has an opening (19) extending radially in the direction of the shaft axis, which are designed in such a way that the sensor (1) is introduced from the outside and opposite the shaft section surface ( 3) can be aligned.
2. Vorrichtung nach Anspruch 1 , 2. Apparatus according to claim 1,
dadurch gekennzeichnet,  characterized,
dass am Sensor (1 ) und/oder am Gehäuse (6) Anschlagmittel vorgesehen sind.  that stop means are provided on the sensor (1) and / or on the housing (6).
3. Vorrichtung nach Anspruch 2, 3. Apparatus according to claim 2,
dadurch gekennzeichnet,  characterized,
dass die Anschlagmittel einstellbar sind.  that the stop means are adjustable.
4. Vorrichtung nach Anspruch 2 oder 3, 4. Apparatus according to claim 2 or 3,
dadurch gekennzeichnet,  characterized,
dass zur Fixierung des Sensors (1 ) eine Schraube, ein Federelement und/oder Rippen am Sensorgehäuse vorgesehen sind. in that a screw, a spring element and / or ribs on the sensor housing are provided for fixing the sensor (1).
5. Vorrichtung nach Anspruch 1 , 5. Apparatus according to claim 1,
dadurch gekennzeichnet,  characterized,
dass der Sensorschaft (9) und die Öffnung (19) eine prismatische oder zylindrische Grundform aufweisen.  the sensor shaft (9) and the opening (19) have a prismatic or cylindrical basic shape.
6. Vorrichtung nach Anspruch 1 , 6. Apparatus according to claim 1,
dadurch gekennzeichnet,  characterized,
dass der Sensor (1 ) einen Sensorkopf (10) aufweist, in dem neben einer Messspule auch eine Kompensationsspule und/oder ein Temperatursensor angeordnet sind.  the sensor (1) has a sensor head (10) in which a compensation coil and / or a temperature sensor are arranged in addition to a measuring coil.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, 7. Device according to one of claims 1 to 6,
dadurch gekennzeichnet,  characterized,
dass zwei oder mehr Sensoren (1 ) strahlenförmig, auf die Wellenachse ausgerichtet, im Gehäuse angeordnet sind.  in that two or more sensors (1) are arranged radially, aligned with the shaft axis, in the housing.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, 8. Device according to one of claims 1 to 7,
dadurch gekennzeichnet,  characterized,
dass die Welle die Welle eines Getriebes, insbesondere die Welle eines an eine hydrodynamische Maschine gekoppelten Getriebes, ist.  that the shaft is the shaft of a transmission, in particular the shaft of a transmission coupled to a hydrodynamic machine.
PCT/EP2014/076337 2013-12-04 2014-12-03 Hydrodynamic machine having a measuring system WO2015082512A2 (en)

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CN201490001227.1U CN206067729U (en) 2013-12-04 2014-12-03 The device for transmitting torque with measuring system

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DE102013224836.9A DE102013224836A1 (en) 2013-12-04 2013-12-04 Hydrodynamic machine with measuring system

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DE102015219569B4 (en) * 2015-10-09 2024-05-16 Vitesco Technologies Germany Gmbh Electronic assembly, combination and method for assembling an electronic assembly
DE102015219571A1 (en) 2015-10-09 2017-04-13 Conti Temic Microelectronic Gmbh Sensor dome assembly
CN108072465B (en) * 2017-11-20 2020-06-30 北京航空航天大学 Three-dimensional force sensor with decoupling structure

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DE102005052105A1 (en) 2005-10-28 2007-05-03 Voith Turbo Gmbh & Co. Kg Hydrodynamic system e.g. hydrodynamic retarder, for e.g. vehicle, has collateral characteristics parameter detecting unit implemented as support moment detecting unit for detecting support moment when unit is supported at stationary unit
DE102011010153A1 (en) 2011-02-02 2012-08-02 Voith Patent Gmbh Hydrodynamic component

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JPS57169641A (en) * 1981-04-14 1982-10-19 Aisin Seiki Co Ltd Torque sensor
JPH10339679A (en) * 1997-06-06 1998-12-22 Toyota Autom Loom Works Ltd Torque sensor and rotation regulating means of its stator

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
DE102005052105A1 (en) 2005-10-28 2007-05-03 Voith Turbo Gmbh & Co. Kg Hydrodynamic system e.g. hydrodynamic retarder, for e.g. vehicle, has collateral characteristics parameter detecting unit implemented as support moment detecting unit for detecting support moment when unit is supported at stationary unit
DE102011010153A1 (en) 2011-02-02 2012-08-02 Voith Patent Gmbh Hydrodynamic component

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