EP2697619A1 - Kombination aus einer ein drehmoment übertragenden antriebswelle und einer die antriebswelle lagernden lageranordnung - Google Patents
Kombination aus einer ein drehmoment übertragenden antriebswelle und einer die antriebswelle lagernden lageranordnungInfo
- Publication number
- EP2697619A1 EP2697619A1 EP12713013.6A EP12713013A EP2697619A1 EP 2697619 A1 EP2697619 A1 EP 2697619A1 EP 12713013 A EP12713013 A EP 12713013A EP 2697619 A1 EP2697619 A1 EP 2697619A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive shaft
- torque
- sensor device
- bearing
- bearing assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- G01L3/102—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 involving magnetostrictive means
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
Definitions
- the invention relates to a combination of a torque transmitting drive shaft and a bearing assembly supporting the drive shaft.
- the invention is thus based on the problem, in particular with respect to a torque measurement improved combination of a torque transmitting Drive shaft and a bearing the drive shaft bearing assembly for detecting the torque of a drive shaft specify.
- the bearing assembly at least one integrated sensor device for contactless detection of a torsional change of a magnetic field on the drive shaft in the area the bearing assembly provided or torque-tight connected to the drive shaft magnetized portion, wherein the detected field change is a measure of the transmitted torque.
- the bearing arrangement comprises at least one integrated sensor device for detecting a torsion-related change in a magnetic field of a magnetized section provided on the drive shaft in the region of the bearing arrangement or connected torque-tight to the drive shaft.
- the magnetic field change of the shaft is easy to detect and directly proportional to the mechanical load.
- Such sensor devices are also insensitive to many application-typical influences, such as, for example, high temperatures, aggressive liquids, vibrations or mechanical shocks and most types of dust particles or dirt particles.
- application-typical influences such as, for example, high temperatures, aggressive liquids, vibrations or mechanical shocks and most types of dust particles or dirt particles.
- excessively high temperatures can lead to demagnetization, and too high vibrations, impacts and other mechanical vibrations are normally disadvantageous.
- the sensor device allows a torque detection without distorting the detected torque, for example caused by a slope of a terrain or an inclination of the combination, as by the slope or the inclination additionally a downgrade force acts on the combination, which this is loaded obliquely.
- any sensor device can be used as long as it allows a non-contact torque measurement.
- the sensor device in particular the sensors, can be active or passive.
- passive coils are to be used, since they are very robust and cost-effective to manufacture and can work in applications with high operating temperatures.
- Passive sensors are sensors that contain only passive elements, such as coils, resistors or capacitors, and operate without a permanent power supply.
- Active sensors are sensors which contain internally amplifying or signal-shaping components, for example transistors, thyristors, optocouplers or relays, and are operated with a power supply.
- the sensor device can be arranged on a bearing supporting the working shaft, wherein of course the sensor device can be arranged on another non-rotating component, as long as the magnetized portion of the drive shaft remains detectable.
- An outer ring of the bearing designed as a radial bearing can be axially extended, wherein the sensor device is arranged here on the inside of the outer ring.
- the sensor device is integrated in the bearing and can thus be installed as a unit, which does not incur additional and high costs.
- a circumferential groove on the outer ring is inserted on the inside, in which the annular sensor device can be arranged.
- An expedient development of the invention provides to enclose the sensor device by means of a sealing element, in particular a sealing ring, which is arranged on the bearing arrangement, in particular on the outer ring, and seals off towards the drive shaft. This may be necessary in cases where the combination is exposed to wet or humid climatic working conditions. In this respect, a failure of the electronics, in particular the sensor device can be avoided.
- the width of the magnetized portion may substantially correspond to the width of the sensor device.
- the width of the magnetized portion or the width of the sensor device may vary, as long as sufficient coverage or detection of the magnetic field change is possible.
- the magnetic portion may be provided or formed on the drive shaft itself.
- the magnetized portion may be provided or formed at the torque-fixed to the drive shaft connected inner ring of the bearing.
- a torque-resistant connection can be made possible for example by working methods such as gluing, welding, soldering or interference fit. Of course, other working methods can be used, which enable a torque-resistant connection.
- the invention relates to an agricultural implement, in particular agricultural vehicle, z.
- a self-propelled harvester such as combine harvester, forage harvester, sugar beet harvesters, potato harvesters comprising at least one combination of shaft and bearing assembly of the type described, based on the determined by the sensor device magnetic field change information in a control device at least one operating parameter, which is the subsequent operation of the implement based , is determinable.
- implements can be understood, for example, machines or vehicles comprising a PTO, a gear, a feeder, a drum, a shredder or a cutting unit. With the help of the determined magnetic field change information operating parameters can be determined or adjusted.
- the invention can generally be used in tractors such as balers (round and square presses), harvesting wagons, loading wagons, hay tedders, rotary mowers, cutting units. For example, based on the determined torque on the drive shaft a conclusion on the flow rate of a material to be conveyed possible. A feedback to the controller and / or to the driver can thus ensure an optimal driving speed of a harvester or a tractor, whereby a high utilization of implements or agricultural vehicles is possible without an overload with associated damage, such as the destruction of equipment, units or to risk storage. In this respect, a longer life of the tools can be made possible. Furthermore, the torque detection can also prevent blockages of the equipment by the vehicle speed is reduced. A so-called reversing operation, ie an operating mode which runs backwards, can thus be avoided.
- control device can use the determined torque to calculate an optimum output of a grit, for example from a fertilizer spreader, a manure spreader, a lime spreader, a salt spreader or a sand spreader (winter service), and convert this by changing the rotational speed of a slinger on the spreader.
- a fertilizer spreader for example from a fertilizer spreader, a manure spreader, a lime spreader, a salt spreader or a sand spreader (winter service)
- FIG. 1 shows a schematic illustration of a combination according to the invention of a first embodiment
- Figure 2 is a schematic diagram of a combination of a second embodiment according to the invention
- Figure 3 is a schematic diagram of an agricultural implement according to the invention, in particular an agricultural vehicle of a first embodiment.
- Figure 1 shows a schematic representation of a combination of the invention 1, comprising a drive shaft 2 and a drive shaft 2 superimposed bearing assembly 3, wherein the drive shaft 2 is rotatable about a horizontal axis. This is indicated by the rotation arrow D.
- a circumferential groove on the non-rotating outer ring 9 is inserted inside the bearing assembly 3, in which an annular sensor device 4 is arranged. This makes it possible that an additional radial space is avoided.
- the sensor device 4 here formed for example with coils, is used to detect a torsional change in a magnetic field of a provided on the drive shaft 2 in the region of the bearing assembly 3 magnetized portion 5, which field change is a measure of the transmitted torque.
- the magnetized section 5 of the ferromagnetic drive shaft 2 see are white domains or domains in which electron spins, which form the elementary magnets of matter, are aligned parallel. If there is now a torsion-related change of a magnetic field on the drive shaft 2, the white domains or the domains in the magnetized section 5 change, which leads to a change in the magnetic field. This change in the magnetic field of the shaft is easy to detect via the sensor device 4 and is directly proportional to the mechanical torsional load, whereby the torque is determined wear-free and non-contact.
- a local magnetization of the section 5 can be achieved for example by a magnetization device with a permanent magnet or a permanent magnet.
- the sensor device 4 is connected via a cable outlet 6 with a downstream control device 7, which processes the received signals, for example, to determine the optimum driving speed and the To reduce or increase the driving speed or to determine the utilization / load of the machine.
- a feedback of this information or information for example, via a visual display device, for. B. a display done.
- a sealing element 11 preferably a sealing ring 11a, is arranged in front of the sensor device 4 in order to seal the sensor device 4 with respect to the drive shaft 2 and to prevent a failure of the electronics and thus a failure of the sensor device.
- the consequence of a failure of the sensor device would therefore be that the torque detection can not be determined, and thus, for example, optimum spreading of the grit can not be determined.
- FIG. 2 shows a second embodiment of a combination 1 according to the invention, where the same reference numerals are used as far as possible for identical components.
- Figure 2 shows a schematic representation of a combination according to the invention 1 according to Figure 1, however, detects the sensor device 4, the torsional change of a magnetic field of a magnetized portion 5 at the torque fixed to the drive shaft 2 connected inner ring of the bearing 8, wherein the same laws apply as in Fig. 1.
- the magnetic field change is also a measure of the transmitted torque.
- a torque-resistant connection can be achieved for example by working methods such as gluing, welding, soldering or interference fit.
- the section 5 can be formed on the inner ring itself, or be attached as a separate ring member on the inner ring.
- FIG. 3 shows a schematic diagram of an inventive agricultural work- ing device, in particular an agricultural vehicle, here exemplarily a tractor 13, wherein the tractor 13 on the front side 14 a working device 15, for example, a power take-off or PTO 16, where not closer combination of the invention shown 1 is arranged in the housing 12.
- the detected torque signals are forwarded by the sensor device 4 to the control device 7, after which further steps are initiated.
- a grit such as a fertilizer spreader, a manure spreader or a Kalkstreuer.
- the result leads For example, to a change in the speed of a centrifugal disc on the spreader, so that optimum spreading of a grit is guaranteed.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011007465A DE102011007465A1 (de) | 2011-04-15 | 2011-04-15 | Kombination aus einer ein Drehmoment übertragenden Antriebswelle und einer die Antriebswelle lagernden Lageranordnung |
| PCT/EP2012/055303 WO2012139875A1 (de) | 2011-04-15 | 2012-03-26 | Kombination aus einer ein drehmoment übertragenden antriebswelle und einer die antriebswelle lagernden lageranordnung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2697619A1 true EP2697619A1 (de) | 2014-02-19 |
Family
ID=45937261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12713013.6A Withdrawn EP2697619A1 (de) | 2011-04-15 | 2012-03-26 | Kombination aus einer ein drehmoment übertragenden antriebswelle und einer die antriebswelle lagernden lageranordnung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140029879A1 (de) |
| EP (1) | EP2697619A1 (de) |
| DE (1) | DE102011007465A1 (de) |
| WO (1) | WO2012139875A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289604A (zh) * | 2015-06-26 | 2017-01-04 | 弗里茨·福尔哈贝尔博士两合公司 | 具有转矩测量构件的用于小型和微型驱动装置的传动装置 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120234107A1 (en) * | 2010-08-26 | 2012-09-20 | Halliburton Energy Services, Inc. | Non-contact torque measurement apparatus and methd |
| DE102012209771A1 (de) | 2012-06-12 | 2013-12-12 | Schaeffler Technologies AG & Co. KG | Kombination aus einer ein Drehmoment übertragenden Antriebswelle und einer die Antriebswelle lagernden Lageranordnung |
| DE102013205491A1 (de) * | 2013-03-27 | 2014-10-02 | Siemens Aktiengesellschaft | Lagerungsvorrichtung zum Lagern eines ersten Bauteils an einem zweiten Bauteil sowie Verfahren zum Erfassen von auf ein Lagerelement wirkenden Belastungen |
| DE102013212052A1 (de) | 2013-06-25 | 2015-01-08 | Schaeffler Technologies Gmbh & Co. Kg | Vorrichtung zur Drehmomentmessung |
| DE102014103793A1 (de) * | 2014-03-20 | 2015-09-24 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | Vorrichtung zur Bestimmung des Drehmomentes einer Streuscheibe eines Schleuderstreuers |
| DE102015201577A1 (de) * | 2015-01-29 | 2016-08-04 | Robert Bosch Gmbh | Sensoranordnung zur indirekten Erfassung eines Drehmoments einer rotierbar gelagerten Welle |
| DE102015225696A1 (de) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Verfahren zur Drehmomentmessung einer Antriebseinheit |
| DE102016218926A1 (de) | 2016-09-29 | 2018-03-29 | Schaeffler Technologies AG & Co. KG | Landwirtschaftliche Maschine |
| IT202000000928A1 (it) * | 2020-01-20 | 2021-07-20 | Kverneland Group Ravenna Srl | Rotopressa |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3434824A1 (de) * | 1984-09-22 | 1986-04-03 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum regeln der zugkraft eines an einem landwirtschaftlichen arbeitsfahrzeug angehaengten arbeitsgeraets |
| US4655616A (en) * | 1985-09-25 | 1987-04-07 | Magtrol, Inc. | Computer direct disc drive with magnetically stabilized shaft |
| US5255567A (en) * | 1990-06-30 | 1993-10-26 | Nippon Densan Corporation | Torque transducer |
| JPH11344394A (ja) * | 1998-05-29 | 1999-12-14 | Toyota Autom Loom Works Ltd | トルクセンサ |
| JP2000241264A (ja) * | 1999-02-25 | 2000-09-08 | Aisin Seiki Co Ltd | トルクセンサ用磁歪素子及びその製造方法 |
| WO2004099747A1 (ja) * | 2003-05-06 | 2004-11-18 | Ntn Corporation | センサ内蔵車輪用軸受 |
| JP2004340783A (ja) * | 2003-05-16 | 2004-12-02 | Ntn Corp | トルク検出装置 |
| US20050117825A1 (en) * | 2003-11-26 | 2005-06-02 | Ntn Corporation | Wheel support bearing assembly with built-in sensor |
| JP2006010477A (ja) * | 2004-06-25 | 2006-01-12 | Ntn Corp | 荷重センサ内蔵車輪用軸受装置 |
| DE102007017705A1 (de) * | 2007-04-14 | 2008-10-16 | Schaeffler Kg | Wellenanordnung mit einem Wälzlager |
| DE102007046749A1 (de) * | 2007-05-16 | 2008-11-20 | Schaeffler Kg | Antriebseinrichtung mit einer Antriebswelle und einer Einrichtung zur Erfassung eines Drehmoments |
| US8585295B2 (en) * | 2010-07-05 | 2013-11-19 | Eagle Industry Co., Ltd. | Rolling bearing |
-
2011
- 2011-04-15 DE DE102011007465A patent/DE102011007465A1/de not_active Withdrawn
-
2012
- 2012-03-26 WO PCT/EP2012/055303 patent/WO2012139875A1/de not_active Ceased
- 2012-03-26 US US14/110,735 patent/US20140029879A1/en not_active Abandoned
- 2012-03-26 EP EP12713013.6A patent/EP2697619A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012139875A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289604A (zh) * | 2015-06-26 | 2017-01-04 | 弗里茨·福尔哈贝尔博士两合公司 | 具有转矩测量构件的用于小型和微型驱动装置的传动装置 |
| CN106289604B (zh) * | 2015-06-26 | 2020-02-28 | 弗里茨·福尔哈贝尔博士两合公司 | 具有转矩测量构件的用于小型和微型驱动装置的传动装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140029879A1 (en) | 2014-01-30 |
| DE102011007465A1 (de) | 2012-10-18 |
| WO2012139875A1 (de) | 2012-10-18 |
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Legal Events
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BERESCH, EDUARD Inventor name: GERNER, ARMIN Inventor name: BREHM, HORST Inventor name: WITTMANN, BERND |
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| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20151001 |
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| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230523 |