WO2015107142A1 - Système de détermination de paramètres de fonctionnement d'un élément de transmission - Google Patents

Système de détermination de paramètres de fonctionnement d'un élément de transmission Download PDF

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Publication number
WO2015107142A1
WO2015107142A1 PCT/EP2015/050749 EP2015050749W WO2015107142A1 WO 2015107142 A1 WO2015107142 A1 WO 2015107142A1 EP 2015050749 W EP2015050749 W EP 2015050749W WO 2015107142 A1 WO2015107142 A1 WO 2015107142A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
rfid
sensor unit
planetary gear
rfid reader
Prior art date
Application number
PCT/EP2015/050749
Other languages
German (de)
English (en)
Inventor
Bernd Gross
Markus Klaus Becker
Andreas Nicola
Khalid KHALLAYOUNE
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
Priority claimed from DE102014200639.2A external-priority patent/DE102014200639A1/de
Priority claimed from DE102014204392.1A external-priority patent/DE102014204392A1/de
Application filed by Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to EP15700677.6A priority Critical patent/EP3094954A1/fr
Publication of WO2015107142A1 publication Critical patent/WO2015107142A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/021—Gearings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
    • H04Q2209/47—Arrangements in telecontrol or telemetry systems using a wireless architecture using RFID associated with sensors

Definitions

  • the invention relates to a system for determining operating parameters of a transmission element, which is movable relative to a base, in particular a transmission element in a planetary gear, comprising at least one passive RFID sensor unit and an RFID reader.
  • condition monitoring The monitoring of machines or of aggregates, such as transmissions, is becoming increasingly important.
  • online surveillance is playing an increasingly important role, since it is particularly suitable for evaluating operating conditions in order to draw conclusions for the next inspection or maintenance, and in particular to prevent premature failure without advance notice.
  • the monitoring is called "condition monitoring”.
  • vibration sensors and temperature sensors are already being used for monitoring in gearboxes.
  • temperature sensors for temperature monitoring.
  • a rise in temperature is a sure sign of increased wear or imminent failure.
  • DE 10 2010 034 749 A1 describes a device for monitoring a planetary gear by means of a sensor unit. It is proposed to transmit the measurement data determined by means of the sensor unit, for example by RFID technology, to a receiving unit.
  • the power supply of the sensor unit by means of a power supply unit such as a battery.
  • a monitoring system for a planetary gear is known, which provides a wireless transmission of data and energy. Both proposed systems have the disadvantage that the measurement data or the energy can only be transmitted if the field profiles of the antennas of transmitter and receiver are aligned. In the arrangement of the sensor unit on the planet carrier so once per revolution.
  • the well-known RFID technology works in general in the 125 kHz technology which is best suited for the reading out of fixed data (IDs). These RFID chips carrying the data enter the field of the antenna, are activated and interrogated, and then leave the field of the antenna again. Only very slow relative speeds are provided (up to 10 m / s) and large antenna areas and antenna areas (a few m 2 ).
  • Another problem of the known measuring systems with RFID technology is the positioning of the antenna in the metal housing of a transmission, since the metal housing strongly dampens the antenna field, so that energy supply and / or data transmission problems occur, especially at high relative speeds.
  • An object of the invention is therefore to propose a system by means of the operating parameters of transmission elements, in particular components of a planetary gear, continuously and reliably detected.
  • a system for determining operating parameters of a transmission element which is movable relative to a base, in particular a transmission element in a planetary gear, comprising at least one passive RFID sensor unit with a sensor, a power supply unit, a transmitting unit and an antenna and an RFID reader with an antenna, where - - Is arranged at the RFID reader on the base and the RFID sensor unit to a transmission element.
  • the system is characterized in that the antenna of the RFID reader and the antenna of the RFID sensor unit are arranged in such a way that the antenna of the RFID sensor unit moves during the relative movement substantially in the antenna field region of the antenna of the RFID reader, so a substantially uninterrupted transmission of energy and / or data is ensured.
  • the relative movement can also be achieved by a component moving relative to a base and, moreover, still moving about its own axis, for example the planetary gear of a planetary gear.
  • a passive RFID sensor unit also referred to as RFID transponder or TAG, means a unit without its own energy unit, such as a battery. The required energy is induced via the antenna.
  • RFID sensor unit or TAG as well as the reader can be arranged on or in a component or transmission element. Furthermore, the RFID reader can be connected to an evaluation unit, such as a computer, which in turn communicates with the control of the transmission.
  • the energy required to measure operating parameters is transmitted from the RFID reader to the TAG, wherein an energy storage unit can alternatively be arranged on the TAG for temporary storage of energy.
  • the RFID sensor unit or TAG is connected to at least one sensor.
  • the sensor can be arranged on the TAG or be electrically connected to it.
  • the RFID sensor unit, Tag on the planet carrier of a planetary gear. It can be provided that the sensor detects operating parameters of a planetary gear.
  • the antenna can be designed as a double-flow antenna. Such antennas are looped.
  • the reader antenna can be designed such that it forms a rotationally symmetrical or annular antenna field on the movement radius of the rotating TAG antenna.
  • the reader antenna may comprise a plurality of parallel windings, which are arranged offset to one another.
  • a multi-core reader antenna cable can be used, which is positioned, for example, on a transmission housing inner surface.
  • the antenna cable can also be positioned inserted in an annular pipe loop or in a plastic carrier. This ensures that there is less field fluctuation in the antenna overlap area, so that a virtually uninterrupted antenna function is ensured even at high speeds.
  • the reader antenna and the TAG antenna can be arranged in two essential orientations to each other, in the axial or radial direction. For reasons of space but in a planetary gear but the axial orientation is preferable.
  • the antenna loop is designed such that a cylindrical surface is formed, wherein the directional antenna field is directed perpendicular to the axis of rotation.
  • temperature sensors and sensors can be used by means of which one of the following operating parameters pressure, humidity, torques and / or vibrations can be detected.
  • the temperature of a planetary gear bearing can be detected.
  • the monitoring can be extended to all planetary gear bearings, and for this purpose an RFID sensor unit can be arranged on the planetary gear carrier for each planetary gear bearing.
  • the reading all RFID sensor units may be by means of an RFID reader 's follow ER, which during the rotation of the planet carrier or at a standstill with the - - communicates with individual RFID sensor units and supplies them with energy. Coded data can be transmitted to distinguish the measuring points.
  • each RFID sensor unit is associated with an RFID reader.
  • the RFID sensor units and the associated RFID reader can be arranged radially offset in order to obtain a clear assignment.
  • FIG. 1 a schematically known from the prior art functional principle of an RFID system is shown.
  • the illustrated system allows a contactless signal and energy transfer.
  • the system consists of a sensor 6 which is connected to an RFID sensor unit 2 and an RFID reader 1 which is connected to an evaluation unit 25.
  • the antenna fields of the antennas 3a and 3b of Reader 1 and TAG 2 interlock.
  • FIG. 1 b shows the more detailed structure of the RFI D system. In this illustration, all components that can be arranged on a reader 1 and a TAG 2 are shown.
  • the energy transmission as well as the data transmission takes place via the antennas 3a, 3b of the two components 1, 2.
  • RFI D-TAG 2 and RFID reader 1 must be positioned in the radio range or near the field to each other or the antennas are positioned to each other in that the field profiles of the antennas intermesh.
  • the RFID tag 2 in addition to the circuit for transmitting and receiving signals and energy having a power supply unit, which provides for the power supply of the circuits. For storing the energy, an energy storage unit may be provided.
  • a passive RFID tag is therefore generally referred to as a smart sensor.
  • FIG. 2 shows, by way of example, a planetary gear 7 with an RFID system.
  • the illustrated planetary gear 7 is housed in a transmission housing 13, wherein the ring gear 12 of the planetary gear is rotatably connected to the housing 13.
  • the RFID reader 1 and the antenna 3 a are attached to the transmission housing 13, wherein the RFID reader 1 and / or the antenna 3 a can also be arranged on another component of the transmission or can be integrated in one component.
  • the RFID tag 2 and the sensor 6 are mounted on the planet carrier 8, wherein an integration in the planet carrier 8 is also conceivable here.
  • the sensor 6 is a temperature sensor with which the temperature of the bearing 10 of the planetary gear 9 is measured.
  • the arrangement on the planet carrier 8 is therefore to be selected such that the sensor 6 is positioned as close as possible to the bearing 10.
  • the RFID tag 2 may also be attached to one or each planetary gear.
  • the ring gear 12 may be rotatably mounted.
  • an RFID tag 2 with a sensor 6 can be attached to each planet carrier arm 8 so that the temperature of each bearing 10 can be measured. - -
  • FIG. 3 shows two embodiments of the RFID reader antenna 3a.
  • the antenna 3a In order to be able to construct an antenna field region by means of the antenna 3a, which ensures a substantially uninterrupted transmission of energy and / or data, the antenna 3a must be designed in such a way that a double-flow antenna is produced. This is achieved by the antenna wire is applied as a loop on a support body, so that an annular structure is formed.
  • a metal tube 23 may be used as the antenna wire, wherein the tube is then deformed such that an annular structure is formed in which the tube forms two concentric circles which enclose an annular surface.
  • a single or multi-wire antenna wire may be inserted into the tube.
  • the circular ring diameter or the distance of the loop, ie the distance be- see the external antenna and internal antenna is dependent on the movement of the RFID tag 's or the antenna 3b. That is, the antenna ring 3a must be designed such that the antenna 3b of the RFID-TAG ' s always remains in the region of the annular surface during the transmission movement. Depending on the arrangement of the RFID tag 's on the planet gear or planetary gear, the antenna must be designed accordingly.
  • Such a designed antenna generates a directional antenna field perpendicular to the ring surface, concentrating the field area in front of the antenna and less affecting the environment, thereby improving the EMC characteristics.
  • the field increase or weaken the field but only affects a small section area of the antenna ring surface, so that an essentially uninterrupted transmission can take place.
  • the antenna 3a can be executed multi-core.
  • Each vein forms its own ring surface, that is, the individual wires are connected in parallel.
  • a field fluctuation can be well balanced.
  • FIG. 4 shows an embodiment of a tag 's 2 is exemplified. Especially at high temperatures it is necessary that the tag board is protected against excessive heat.
  • the illustrated housing 26 of the TAG ' s 2 has two areas, wherein the sensor 6 can be brought near the tip near a temperature range and the TAG board 2 is well shielded from heat. For further isolation from the heat and for attachment of the TAG is fixed by means of an insulating material 24 in the housing 26.
  • the temperatures of the bearings 15, 16 can be measured by conventional measuring methods, since these are arranged stationary in the gear housing.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un système de détermination de paramètres de fonctionnement d'un élément de transmission (8, 9, 10) mobile par rapport à une base, notamment d'un élément de transmission (8, 9, 10) dans une transmission à trains épicycloïdaux (7), comprenant au moins une unité de détection RFID passive (2) pourvue d'un capteur (6), d'une unité d'alimentation en énergie, d'une unité d'émission et d'une antenne (3b), et un lecteur RFID (1) pourvu d'une antenne (3a), le lecteur RFID (1) étant disposé sur la base (13) et l'unité de détection RFID (2) étant disposée sur un élément de transmission (8, 9, 10). Pour garantir une détection continue et sûre des données, l'antenne (3a) du lecteur RFID (1) et l'antenne (3b) de l'unité de détection RFID (2) sont disposées de telle manière l'une par rapport à l'autre que, lors du mouvement relatif, l'antenne (3b) de l'unité de détection RFID (2) se déplace essentiellement dans la zone du champ de l'antenne (3a) du lecteur RFID (1) de manière à garantir une transmission d'énergie et/ou de données essentiellement sans interruption.
PCT/EP2015/050749 2014-01-16 2015-01-16 Système de détermination de paramètres de fonctionnement d'un élément de transmission WO2015107142A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15700677.6A EP3094954A1 (fr) 2014-01-16 2015-01-16 Système de détermination de paramètres de fonctionnement d'un élément de transmission

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102014200639.2A DE102014200639A1 (de) 2014-01-16 2014-01-16 Verfahren und Vorrichtung zur Funktionsüberwachung eines Planetengetriebes
DE102014200639.2 2014-01-16
DE102014204392.1A DE102014204392A1 (de) 2014-03-11 2014-03-11 System und Verfahren zur Ermittlung von Messgrößen an einem rotierenden Bauteil
DE102014204392.1 2014-03-11

Publications (1)

Publication Number Publication Date
WO2015107142A1 true WO2015107142A1 (fr) 2015-07-23

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2015/050752 WO2015107144A1 (fr) 2014-01-16 2015-01-16 Système de détermination de grandeurs de mesure sur un élément rotatif
PCT/EP2015/050749 WO2015107142A1 (fr) 2014-01-16 2015-01-16 Système de détermination de paramètres de fonctionnement d'un élément de transmission

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/050752 WO2015107144A1 (fr) 2014-01-16 2015-01-16 Système de détermination de grandeurs de mesure sur un élément rotatif

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WO (2) WO2015107144A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016075199A1 (fr) * 2014-11-14 2016-05-19 Siemens Aktiengesellschaft Engrenage de treuil, utilisation, procédé
DE102016123434A1 (de) 2016-12-05 2018-06-07 Voith Patent Gmbh Drahtloses Messsystem für ein rotierendes Bauteil
WO2018108774A1 (fr) 2016-12-15 2018-06-21 Voith Patent Gmbh Système de mesure sans fil pour un composant rotatif
WO2019011883A1 (fr) 2017-07-11 2019-01-17 Voith Patent Gmbh Détermination de température au niveau d'une boîte de superposition
CN110701292A (zh) * 2019-11-01 2020-01-17 南京高速齿轮制造有限公司 一种具有行星轮轴承测温装置的齿轮箱

Citations (7)

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WO2003100743A2 (fr) * 2002-05-25 2003-12-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mesure de position sans contact d'elements rotatifs
JP2006258242A (ja) * 2005-03-18 2006-09-28 Ntn Corp アンテナ付軸受
DE60225514T2 (de) * 2001-09-11 2008-06-26 Nsk Ltd. Wälzlager mit Temperatur- und/oder Vibrations-Sensor
WO2011104433A1 (fr) 2010-02-24 2011-09-01 Espotel Oy Système de surveillance pour surveiller l'état de pignons planétaires
US20120007748A1 (en) * 2008-07-25 2012-01-12 Sylvain Forgues Controlled electro-pneumatic power tools and interactive consumable
DE102010034749A1 (de) 2010-08-19 2012-02-23 Schaeffler Technologies Gmbh & Co. Kg Vorrichtung zur Überwachung eines rotierenden Maschinenteils
US20120156034A1 (en) * 2010-12-17 2012-06-21 Vestas Wind Systems A/S Apparatus for harvesting energy from a gearbox to power an electrical device and related methods

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US6571617B2 (en) * 2001-01-17 2003-06-03 Microchip Technology Incorporated Method and apparatus using directional antenna or learning modes for tire inflation pressure monitoring and location determination

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DE60225514T2 (de) * 2001-09-11 2008-06-26 Nsk Ltd. Wälzlager mit Temperatur- und/oder Vibrations-Sensor
WO2003100743A2 (fr) * 2002-05-25 2003-12-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mesure de position sans contact d'elements rotatifs
JP2006258242A (ja) * 2005-03-18 2006-09-28 Ntn Corp アンテナ付軸受
US20120007748A1 (en) * 2008-07-25 2012-01-12 Sylvain Forgues Controlled electro-pneumatic power tools and interactive consumable
WO2011104433A1 (fr) 2010-02-24 2011-09-01 Espotel Oy Système de surveillance pour surveiller l'état de pignons planétaires
DE102010034749A1 (de) 2010-08-19 2012-02-23 Schaeffler Technologies Gmbh & Co. Kg Vorrichtung zur Überwachung eines rotierenden Maschinenteils
US20120156034A1 (en) * 2010-12-17 2012-06-21 Vestas Wind Systems A/S Apparatus for harvesting energy from a gearbox to power an electrical device and related methods

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Title
See also references of EP3094954A1 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016075199A1 (fr) * 2014-11-14 2016-05-19 Siemens Aktiengesellschaft Engrenage de treuil, utilisation, procédé
DE102016123434A1 (de) 2016-12-05 2018-06-07 Voith Patent Gmbh Drahtloses Messsystem für ein rotierendes Bauteil
WO2018108774A1 (fr) 2016-12-15 2018-06-21 Voith Patent Gmbh Système de mesure sans fil pour un composant rotatif
DE102016124436A1 (de) 2016-12-15 2018-06-21 Voith Patent Gmbh Drahtloses Messsystem für ein rotierendes Bauteil
WO2019011883A1 (fr) 2017-07-11 2019-01-17 Voith Patent Gmbh Détermination de température au niveau d'une boîte de superposition
DE102017115479A1 (de) 2017-07-11 2019-01-17 Voith Patent Gmbh Temperaturbestimmung an einem Überlagerungsgetriebe
CN110701292A (zh) * 2019-11-01 2020-01-17 南京高速齿轮制造有限公司 一种具有行星轮轴承测温装置的齿轮箱

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Publication number Publication date
EP3094954A1 (fr) 2016-11-23
EP3094955A1 (fr) 2016-11-23
WO2015107144A1 (fr) 2015-07-23

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