EP3861627A1 - Verfahren zum magnetisieren, bauteil und kupplungsaktor - Google Patents
Verfahren zum magnetisieren, bauteil und kupplungsaktorInfo
- Publication number
- EP3861627A1 EP3861627A1 EP19787153.6A EP19787153A EP3861627A1 EP 3861627 A1 EP3861627 A1 EP 3861627A1 EP 19787153 A EP19787153 A EP 19787153A EP 3861627 A1 EP3861627 A1 EP 3861627A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- magnetic field
- magnetizing
- rotation
- axis
- 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- Withdrawn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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
Definitions
- the invention relates to a method for magnetizing a component according to the preamble of claim 1. Furthermore, the invention relates to a component which is produced using the method and a clutch actuator with such a component.
- actuators are known to be used for the automated actuation of clutches.
- Actuators are used in the case of automatically actuated clutches, such as the E-clutch, in connection with manual transmissions.
- Such an actuator is the modular clutch actuator, also called the modular clutch actuator or MCA for short.
- MCA modular clutch actuator
- the rotor performs a rotary movement, which is converted into a translatory movement of the spindle via a planetary roller thread, abbreviated PWG.
- PWG planetary roller thread
- DE 10 2017 122 171.9 describes an actuator in a clutch actuation system of a motor vehicle in which an axial actuation force is applied
- Clutch actuation is measured via a magnetostrictive measuring element.
- DE 10 2017 125 848.5 describes a magnetostrictive force determination on a threaded spindle of a clutch actuator.
- DE 10 2017 123 475.6 describes a bearing of an actuator spindle, the bearing ring of which is magnetized in order to detect an actuating force on the bearing using magnetostrictive detection.
- the object of the present invention is to provide a method for
- Propose magnetizing a component At least one of these tasks is solved by a method for magnetizing a component with the features of claim 1. Accordingly, a
- the outer circumference of the component is encircled and increasingly weakened with each encirclement, as a result of which a circularly closed magnetic field is generated in the component in the first plane. In this way, an economical and cost-saving magnetization of the component can be produced, with which a magnetostrictive measurement of an axial force acting on the component is possible.
- the outer circumference of the component is the outer border of the
- the outer circumference can be the outer border of one of the two halves or both halves of the component in the cross section formed by the first plane.
- the magnetic field is preferably equidistant from the component surface containing the outer circumference.
- the component has a width in the direction perpendicular to the axis of rotation and the excitation magnetic field has a field width in the same direction, the field width being at least as large as the width.
- the excitation magnetic field orbits in a second plane containing the axis of rotation and different from the first plane
- the component can rotate about the axis of rotation to switch between the first and second levels.
- the component can rotate about the axis of rotation to switch between the first and second levels.
- the component can be magnetized uniformly with respect to the circumferential direction directed in the direction of rotation.
- the magnetic field can be in all of these
- Circumferential cross-sections of the component may be present.
- the excitation unit is a
- the encirclement is carried out by moving the permanent magnet in the plane containing the axis of rotation about the
- the excitation unit is an electromagnet.
- the electromagnet can have a current-carrying coil.
- a flux conduction element for example a flux conduction element containing iron, can be arranged in the coil.
- the orbiting takes place by moving the electromagnet in the plane containing the axis of rotation around the
- the excitation unit comprises
- the electromagnets are preferably arranged at the same distance from one another. More than two electromagnets can be arranged.
- Electromagnets can be the same size or different sizes.
- Electromagnets can have the same properties or different properties.
- the orbiting can take place by weakening the excitation magnetic field of the first electromagnet and building up and strengthening the excitation magnetic field of the second electromagnet.
- the excitation magnetic field of the first electromagnet can be weakened continuously. Building and strengthening the excitation magnetic field of the first electromagnet
- Excitation magnetic field of the second electromagnet can take place continuously.
- Gain can be proportional to the weakening.
- the component can be a shaft, a spindle or a bearing component, for example a bearing ring.
- the bearing component can be used in a bearing of a clutch actuator or in a wheel bearing.
- a clutch actuator with a component which is produced using the method described above is proposed, the component being a shaft, a spindle and / or a bearing component.
- Figure 1 A spatial cross-sectional view of a clutch actuator in a special embodiment of the invention.
- Figure 2 An arrangement for magnetizing a wave
- Figure 3 An arrangement for magnetizing a bearing ring
- Figure 4 An arrangement for magnetizing a wave
- Figure 5 An arrangement for magnetizing a bearing ring
- FIG. 1 shows a spatial cross-sectional view of a clutch actuator 10 in a special embodiment of the invention.
- the clutch actuator 10 comprises an electric motor with a stator 11 and a rotor 13.
- the rotor 13 can be one
- the component 12 is a spindle 14. Also includes the Coupling actuator 10 is a ball bearing 16 with a further component 12, here a bearing component, for example an outer bearing ring 18.
- the spindle 14 and the components connected to it bring about a clutch actuation via the translatory movement.
- the spindle 14 is subjected to an axial force, for example the clutch actuation force.
- the axial force can also act on the bearing ring 18.
- the magnetostrictive measurement of the axial force has proven to be particularly advantageous.
- the axial force causes the respective component 12 to deform axially. If the component 12 is magnetized, the magnetostrictive effect can be used to measure the
- Axial load can be used.
- the exact magnetization of the component is crucial for a reliable measurement of the axial load.
- the component should preferably have a circularly closed magnetic field aligned in the first plane in order to enable the best possible detection of the axial load via the magnetostrictive effect.
- FIG. 2 shows an arrangement for magnetizing a component 12 designed as a shaft in a special embodiment of the invention.
- the shaft 20 is rotatable about an axis of rotation 100 and consists of a magnetizable
- An excitation unit 22 which is designed here as a permanent magnet 24, generates an excitation magnetic field 26, which acts on the shaft 20.
- the excitation magnetic field 26 is guided by moving the permanent magnet 24 in a first plane 32 containing the axis of rotation 100 such that it has an outer circumference of the component 12 encircled. With each encirclement, the permanent magnet 24 is increasingly moved away from the shaft 20, as a result of which the component 12 acts
- Exciter magnetic field 26 is increasingly weakened and thus the magnetic field 30 is constantly impressed in the component 12.
- the shaft 20 has a width 34 in the direction perpendicular to the axis of rotation 100 and the excitation magnetic field 26 has a field width 36 in the same direction, the field width 36 being at least as large as the width 34.
- FIG. 3 shows an arrangement for magnetizing a bearing component
- the bearing component 38 is here, for example, a bearing ring 40.
- the magnetization of the bearing ring 40 takes place in that an excitation unit 22, which is designed here as a permanent magnet 24, generates an excitation magnetic field 26, which acts on the bearing ring 40.
- the excitation magnetic field 26 is guided in this way by moving the permanent magnet 24 in a first plane 32 containing the axis of rotation 100 that this encircles an outer circumference of the component 12. With each encirclement, the permanent magnet 24 is increasingly moved away from the bearing ring 40, as a result of which the component 12 acts
- Exciter magnetic field 26 is increasingly weakened and thereby the magnetic field 30 is constantly impressed in the bearing ring 40.
- the bearing ring 40 In order to carry out the magnetization of the bearing ring 40 around the entire component surface 28 and thus also in the inner region 42, the permanent magnet 24 is transferred through the inner region 42 of the bearing ring 40.
- the bearing ring 40 can be designed in a divided manner, with which the encircling with the
- Permanent magnets 24 can be made easier.
- FIG. 4 shows an arrangement for magnetizing a component 12 designed as a shaft in a further special embodiment of the invention.
- the excitation unit 22 is an electromagnet 44 arranged around the component surface 28 in a plane 32 containing the axis of rotation 100.
- the electromagnet 44 consists of several individual electromagnets 44, each of which has a current-carrying coil 46.
- a flux conduction element for example a flux conduction element containing iron, can be arranged in the coil 46.
- the encirclement for magnetizing the shaft 20 with a closed magnetic field 30 which extends equidistantly from the component surface 28 takes place through increasing weakening of the excitation magnetic field 26 of the first
- the excitation magnetic field 26 of the first electromagnet 48 is continuously weakened.
- the excitation magnetic field 26 of the second electromagnet 50 is built up and amplified continuously and in proportion to the weakening of the excitation magnetic field 26 of the first electromagnet 48.
- the individual electromagnets 44 are arranged at the same distance from one another in order to ensure a uniform circumference of the component surface 28 and thus a uniform magnetization to enable.
- FIG. 5 shows an arrangement for magnetizing a component 12 designed as a bearing ring in a further special embodiment of the invention.
- the excitation unit 22 is an electromagnet 44 arranged around the component surface 28 in a plane 32 containing the axis of rotation 100.
- the electromagnet 44 consists of several individual electromagnets 44, each of which has a current-carrying coil 46.
- a flux conduction element for example a flux conduction element containing iron, can be arranged in the coil 46.
- the encircling for magnetization of the bearing ring 40 with a closed magnetic field 30 which is equidistant from the component surface 28 takes place through increasing weakening of the excitation magnetic field 26 of the first
- Excitation magnetic field 26 of the adjacent second electromagnet 50 The weakening of the excitation magnetic field 26 of the first electromagnet 48 takes place continuously.
- the excitation magnetic field 26 of the second electromagnet 50 is built up and amplified continuously and in proportion to the weakening of the excitation magnetic field 26 of the first electromagnet 48.
- the individual electromagnets 44 are arranged at the same distance from one another in order to enable a uniform encirclement of the component surface 28 and thus a uniform magnetization.
- electromagnets 44 are also introduced in the inner region.
- the size of the individual electromagnets does not necessarily have to be the same. Smaller electromagnets 44 can also be arranged in the inner area than in the adjacent areas.
- the magnetic field that can be generated is arranged in the inner region 42
- Electromagnet 44 can still be the same size as that in the
- the electromagnets arranged in the inner region 42 can be operated with a higher current.
- the bearing ring 40 can be designed in a divided manner, which makes it easier to arrange the electromagnets 44. After the component 12 has been magnetized in the first plane 32, this can be done
- Excitation magnetic field 26 encircling an outer circumference of the component 12 in a second level containing the axis of rotation 100 and different from the first level 32 and thus causing magnetization of the component 12 also in the second level.
- the component 12 can rotate about the axis of rotation 100 in order to change between the first level 32 and the second level.
- the excitation unit 22 can rotate about the axis of rotation 100. Magnetization in two or more such planes can be advantageous if there is a local axial load which is distributed unevenly in the direction of rotation of the component 12 and which is to be detected magnetostrictively.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018124355.3A DE102018124355A1 (de) | 2018-10-02 | 2018-10-02 | Verfahren zum Magnetisieren, Bauteil und Kupplungsaktor |
| PCT/DE2019/100844 WO2020069694A1 (de) | 2018-10-02 | 2019-09-25 | Verfahren zum magnetisieren, bauteil und kupplungsaktor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3861627A1 true EP3861627A1 (de) | 2021-08-11 |
Family
ID=68242227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19787153.6A Withdrawn EP3861627A1 (de) | 2018-10-02 | 2019-09-25 | Verfahren zum magnetisieren, bauteil und kupplungsaktor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3861627A1 (de) |
| CN (1) | CN112534689B (de) |
| DE (1) | DE102018124355A1 (de) |
| WO (1) | WO2020069694A1 (de) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0890179B1 (de) * | 1996-03-29 | 2005-06-15 | Urenco (Capenhurst) Limited | Verfahren zum magnetisieren eines zylindrischen körpers |
| GB0009492D0 (en) * | 2000-04-17 | 2000-06-07 | Fast Technology Gmbh | Magnetic transducer element and method of preparation |
| US6854573B2 (en) * | 2001-10-25 | 2005-02-15 | Lord Corporation | Brake with field responsive material |
| US6792817B2 (en) * | 2002-08-09 | 2004-09-21 | Visteon Global Technologies, Inc. | Fixtures and processes for magnetizing magnetoelastic shafts circumferentially |
| US7053611B2 (en) * | 2004-06-04 | 2006-05-30 | Schlumberger Technology Corporation | Method and apparatus for using pulsed field gradient NMR measurements to determine fluid properties in a fluid sampling well logging tool |
| DE102006037992A1 (de) * | 2006-08-14 | 2008-02-21 | Magna Powertrain Ag & Co Kg | Bauteil mit Haltefunktion, Aufhaltesystem und Verfahren zu deren Betrieb |
| DE102009007209B4 (de) * | 2009-02-03 | 2014-07-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Schaltbare magnetorheologische Drehmoment- oder Kraftübertragungsvorrichtung, deren Verwendung sowie magnetorheologisches Drehmoment- oder Kraftübertragungsverfahren |
| CN102829101B (zh) * | 2011-09-14 | 2014-08-13 | 南京理工大学 | 一种应用永磁材料的磁粉离合器 |
| US9046430B2 (en) * | 2013-03-15 | 2015-06-02 | Methode Electronics, Inc. | Method of reducing rotation noise in a magnetoelastic torque sensing device |
| DE102016212925A1 (de) * | 2016-07-14 | 2018-01-18 | Schaeffler Technologies AG & Co. KG | Permanentmagnet für eine Sensoranordnung zur Bestimmung einer Winkelposition des Permanentmagneten |
| DE102016213591B3 (de) * | 2016-07-25 | 2017-05-18 | Schaeffler Technologies AG & Co. KG | Lageranordnung mit Messanordnung zum Messen einer Kraft und/oder eines Momentes |
| DE102016015409A1 (de) * | 2016-12-22 | 2018-06-28 | Kiekert Ag | Kraftfahrzeugtür mit Feststelleinrichtung |
| DE102017103814A1 (de) * | 2017-02-24 | 2018-08-30 | Schaeffler Technologies AG & Co. KG | Anordnung zur Messung einer Kraft oder eines Momentes mit mindestens einem Magnetfeldsensor |
| DE102017122171A1 (de) | 2017-09-25 | 2019-03-28 | Schaeffler Technologies AG & Co. KG | Aktor und Verfahren zur Messung einer Betätigungskraft sowie ein Kraftfahrzeug mit einem Aktor |
| DE102017123475A1 (de) | 2017-10-10 | 2019-04-11 | Schaeffler Technologies AG & Co. KG | Messanordnung zur magnetostriktiven Kraftmessung an einem Lagerring |
| DE102017125848A1 (de) | 2017-11-06 | 2019-05-09 | Schaeffler Technologies AG & Co. KG | Verfahren zur Ansteuerung eines Kupplungsbetätigungssystems und ein Kupplungsbetätigungssystem |
-
2018
- 2018-10-02 DE DE102018124355.3A patent/DE102018124355A1/de active Granted
-
2019
- 2019-09-25 WO PCT/DE2019/100844 patent/WO2020069694A1/de not_active Ceased
- 2019-09-25 EP EP19787153.6A patent/EP3861627A1/de not_active Withdrawn
- 2019-09-25 CN CN201980050519.1A patent/CN112534689B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112534689B (zh) | 2025-03-04 |
| DE102018124355A1 (de) | 2020-04-02 |
| WO2020069694A1 (de) | 2020-04-09 |
| CN112534689A (zh) | 2021-03-19 |
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