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WO2015058747A1 - Palier à roulement à générateur électrique - Google Patents

Palier à roulement à générateur électrique Download PDF

Info

Publication number
WO2015058747A1
WO2015058747A1 PCT/DE2014/200391 DE2014200391W WO2015058747A1 WO 2015058747 A1 WO2015058747 A1 WO 2015058747A1 DE 2014200391 W DE2014200391 W DE 2014200391W WO 2015058747 A1 WO2015058747 A1 WO 2015058747A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling bearing
outer ring
annular holder
rolling
permanent magnets
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.)
Ceased
Application number
PCT/DE2014/200391
Other languages
German (de)
English (en)
Inventor
Rainer Schröder
Gerhard Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2015058747A1 publication Critical patent/WO2015058747A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • F16C41/004—Electro-dynamic machines, e.g. motors, generators, actuators
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06—Ball or roller bearings
    • F16C23/08—Ball or roller bearings self-adjusting
    • F16C23/082—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086—Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/48—Cages for rollers or needles for multiple rows of rollers or needles

Definitions

  • the present invention relates to a rolling bearing with an electric generator.
  • an electric generator can be structurally integrated into the rolling bearing.
  • Such an electric generator can be designed, for example, as a claw pole generator, in which permanent magnets interact with an induction coil.
  • a claw pole generator two claw rings surround an induction coil that orbits the axis of rotation of the roller bearing, the two claw rings being circumferentially offset from each other.
  • the two claw rings and the induction coil can for example be attached to a bearing ring.
  • a magnetic circle is connected via a circumferentially adjacent second claw, namely a claw of the second claw ring to a circumferentially adjacent second, unlike, magnetic pole this case a south pole, formed. If the bearing ring continues to rotate with the two claw rings, the second claw faces the north pole and the first claw a south pole, so that the direction of the magnetic circuit surrounding the induction coil reverses and a magnetic voltage is generated in the induction coil. This voltage can be removed for example via a supplied cable to the induction coil.
  • Rolling bearings with an electric generator for example rolling bearings with a claw-pole generator, are required by the practice to provide a constant and sufficiently large voltage, while maintaining the standard dimensions of the rolling bearing and a simpledersab- to allow.
  • swing-out roller bearings it is additionally demanded by the practice that the swing-out capability should not be significantly restricted by the integration of the electric generator.
  • DE 10 201 1075547 A1 A1 describes a designed as a particular double-row spherical roller bearings with a bearing ring, a bearing cage for receiving at least one rolling element and designed as a particular claw pole generator electric generator with permanent magnets, wherein the magnets integrated into a cage groove in the middle guide ring of the bearing cage and the induction coil surrounded by the two claw rings is arranged opposite the middle guide ring.
  • the available space determines the dimensions of the electric generator.
  • the size and number of permanent magnets and the induction coil and thus the energy that can be generated are therefore limited.
  • the electric generator in a rolling bearing as described in DE 10201 1 075 547 A1 can produce about 5 watts at about 200 revolutions per minute, for example.
  • only simple energy consumers for example a single piezoelectric pressure sensor for a roller for paper webs, can be supplied.
  • the object of the invention is therefore, starting from a rolling bearing with a claw pole generator, to specify a rolling bearing construction with an electric generator which enables a higher energy production while maintaining the standard dimensions and / or only slightly adapted standard rolling bearing components.
  • the object is achieved according to claim 1, characterized in that an induction coil is arranged on the inner ring and the permanent magnets are arranged on the outer ring. Due to the relative movement of the outer ring, on which the permanent magnets are arranged, and the inner ring or the shaft, on which the claw rings are arranged with the induction coil, can generate energy.
  • the relative movement of outer ring and inner ring is about 50 percent higher than the relative movement of the bearing cage and inner ring, as described for example in DE 10 201 1 075 547 A1. This higher speed difference allows you to generate more energy.
  • the dimension of the coil and / or of the permanent magnets can advantageously be reduced. This takes up less space and also a shield against, for example, extending in the circumferential direction rolling elements is facilitated. An advantageous reduction of the number of permanent magnets is possible.
  • the permanent magnets are connected to one another via a magnetically conductive ring, for example made of steel.
  • a magnetically conductive ring ensures the magnetic inference between unlike magnetic poles.
  • the permanent magnets are arranged distributed on an annular holder over its circumference.
  • the annular holder is connected to the outer ring in the circumferential direction against rotation.
  • the annular holder is not magnetically conductive, for example made of brass.
  • the fact that the annular holder is not magnetically conductive is the magnetic Conclusion better ensured.
  • the annular holder thus has an insulating function for the magnetic yoke, in particular against a magnetically conductive outer ring and / or cage with recorded rolling elements.
  • the arrangement of the permanent magnets can be made on the annular holder, while the magnetically conductive ring ensures the magnetic return.
  • the permanent magnets may be disposed on the magnetically conductive ring, and the magnetically conductive ring is disposed on the annular holder.
  • the magnetically conductive ring has the further function of the carrier of the permanent magnets.
  • the manufacture of the rolling bearing of the magnetically conductive ring can be advantageously prepared in advance with the permanent magnet and then simply be placed on the annular holder.
  • two rows of rolling elements are provided.
  • the bearing cage between the at least two rows of rolling elements in the circumferential direction is divided into at least two cage halves and the annular holder extends between these cage halves.
  • the annular holder which is arranged on the outer ring, thus advantageously passes between the cage halves the slower in operation rotating cage and arranges the permanent magnets of the induction coil opposite to the generation of induction energy. Furthermore, the annular holder assumes a guiding function for the cage halves.
  • a Vermosommese- element is received in an outer ring recess.
  • the anti-rotation element thus fixes the annular holder against rotation in the circumferential direction.
  • the annular holder and the anti-rotation element are designed such that the outer ring is tilted relative to the annular holder or to the main axis of the roller bearing. bar is. Tilting to the main axis of the rolling bearing can be achieved, for example, that the anti-rotation element is accommodated without Schoachsenspiel in the outer ring recess, wherein the annular holder allows a game in the direction of the main axis of the rolling bearing.
  • the rotation without Schoachsenspiel can be firmly connected to the annular holder, wherein the outer ring allows a Hauptachsenspiel by means of, for example, extending in the main axis of the rolling bearing groove.
  • the main-axis clearance advantageously allows the distance between the permanent magnets and the induction coil to remain constant when tilting from the outer ring relative to the inner ring or the annular holder.
  • embodiments of the invention can be used with an anti-rotation element in rolling bearings with one-piece outer ring.
  • a positive clamping of the annular holder between two outer ring halves is not necessary, for example.
  • the outer ring is multi-part and comprises at least two outer ring halves and the annular holder is clamped form-fitting between the outer ring halves.
  • the rolling bearing is designed as a spherical roller bearing.
  • spherical roller bearings are used for example for the rotatable mounting of large-building rollers.
  • a possible bearing arrangement is the rotatable mounting of the roller as a guide roller for paper webs, wherein a pressure sensor on the lateral surface of the guide roller can be energetically acted upon by the electric generator of the rolling bearing.
  • multi-row rolling bearings between each row of rolling elements may have integrated an electric generator according to the invention.
  • FIG. 1 shows an axial partial section of a rolling bearing according to the invention according to an embodiment
  • FIG. FIG. 2 is a schematic longitudinal section of the embodiment shown in FIG. 1 illustrated inventive rolling bearing
  • FIG. 3 shows an axial partial section of a rolling bearing according to the invention according to a further embodiment. Detailed description of the drawings
  • FIG. 1 shows the partial axial section of a roller bearing 1, which is designed as a double-row spherical roller bearing, and comprises an inner ring 2 and an outer ring 3.
  • the inner ring 2 of the rolling bearing 1 is mounted on the shaft 12.
  • Rolling bearing 1 further comprises a bearing cage consisting of two cage halves 4a, 4b, each cage half 4a, 4b pockets for receiving rolling elements 5a, 5b and the rolling elements 5a, 5b spaced so feasible are.
  • FIG. 1 is a schematic representation of components of a claw pole generator for power generation.
  • the illustrated components of the claw pole generator comprise the induction coil 7 surrounded by claw rings (not illustrated in FIG. 1) and the opposing permanent magnets 6. Between the permanent magnets 6 and the induction coil 7 surrounded by claw rings is an air gap 14.
  • the annular holder 9 extends from the outer ring 3 between the two cage halves 4a, 4b.
  • the outer ring 3 has at least one outer ring recess 1 1 for receiving a Verwood spiritsselements 10, which is positively received in the outer ring recess 1 1 and protrudes from the raceway of the outer ring 3.
  • the anti-rotation element 10 can be designed, for example, as a pin or threaded pin.
  • the part of the anti-rotation element 10 projecting beyond the raceway is accommodated in a groove of the annular holder 9 that is positive in the circumferential direction, the groove having a play 15a, 15b in the main axis direction of the rolling bearing 1.
  • the game 15a, 15b allows tilting of the outer ring 3 with respect to shaft 12 or the inner ring 2 with rolling elements 5a, 5b, annular holder 9, permanent magnets 6, cage halves 4a, 4b and induction coil 7.
  • the air gap 14 between the permanent magnets 6 and induction coil 7 advantageously an approximately constant distance.
  • a constant energy value can be generated by the claw pole generator.
  • securing of the annular holder 9 against rotation in the circumferential direction can also be achieved by two or more anti-rotation elements 10.
  • the play can be dispensed with and the anti-rotation element can be positively connected to the annular holder.
  • FIG. FIG. 2 shows a schematic longitudinal section of the embodiment shown in FIG. 1 illustrated inventions rolling bearing. 1 It shows the inner ring 2, the induction coil 7 of a claw pole generator (claw rings not shown), the magnetically conductive ring 8 with arranged permanent magnets 6, which form an air gap 14 with the induction coil 7, the annular holder 9, which in the circumferential direction against rotation by means of an anti-rotation element 10th is fixed in the outer ring recess 1 1 of the outer ring 3.
  • the anti-rotation element 10 is connected in a form-fitting manner in the circumferential direction with the annular holder 9, and thus has a clearance only in the main axis direction (see FIG. 1).
  • FIG. 3 shows an axial partial section of a rolling bearing 1 according to the invention according to a further embodiment.
  • the rolling bearing in FIG. 2 differs from the rolling bearing in FIG. 1 in particular in the construction of the outer ring and the fixation of the annular holder 9 in the circumferential direction.
  • the outer ring is divided into two outer ring halves 3a, 3b.
  • the annular holder 9 extends between the outer ring halves 3 a, 3 b and is therefore also positively clamped and is fixed against rotation in the circumferential direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un palier à roulement (1) comprenant une bague intérieure (2), une bague extérieure (3), une cage de roulement pour la réception d'au moins une rangée de corps de roulement (5a, 5b) et des aimants permanents (6) qui interagissent avec une bobine d'induction (7). Le palier à roulement (1) selon l'invention est caractérisé en ce que la bobine d'induction (7) est positionnée contre la bague intérieure (2) et les aimants permanents (6) sont disposés au niveau de la bague extérieure (3).
PCT/DE2014/200391 2013-10-21 2014-08-07 Palier à roulement à générateur électrique Ceased WO2015058747A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310221269 DE102013221269A1 (de) 2013-10-21 2013-10-21 Wälzlager mit elektrischem Generator
DE102013221269.0 2013-10-21

Publications (1)

Publication Number Publication Date
WO2015058747A1 true WO2015058747A1 (fr) 2015-04-30

Family

ID=51494058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200391 Ceased WO2015058747A1 (fr) 2013-10-21 2014-08-07 Palier à roulement à générateur électrique

Country Status (2)

Country Link
DE (1) DE102013221269A1 (fr)
WO (1) WO2015058747A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019205796B4 (de) 2019-04-23 2023-05-04 Thyssenkrupp Ag Generatorvorrichtung für die Energieversorgung von innerhalb eines Wälzkörpers eines Wälzlagers angeordneten Elektronikkomponenten
CN113915241B (zh) * 2021-10-27 2023-10-03 北京石墨烯技术研究院有限公司 轴承结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006064094A (ja) * 2004-08-27 2006-03-09 Jtekt Corp 発電機付き転がり軸受装置
JP2009005430A (ja) * 2007-06-19 2009-01-08 Ntn Corp 発電機付軸受
DE102011075547A1 (de) 2011-05-10 2012-11-15 Schaeffler Technologies AG & Co. KG Wälzlager, insbesondere zweireihiges Wälzlager, mit einer Energieerzeugungseinheit, insbesondere zur Lagerung einer Walze
DE102011079081A1 (de) * 2011-07-13 2013-01-17 Schaeffler Technologies AG & Co. KG Lager mit Energieerzeugungseinheit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1941531U (de) * 1963-09-20 1966-06-30 Albrecht Graefer Waelzlager-anordnung an wellen, die unter einwirkung einer axialen schubkraft stehen.
US3773397A (en) * 1972-06-29 1973-11-20 Borg Warner Self-aligning bearing assembly
US5385410A (en) * 1992-08-31 1995-01-31 General Motors Corporation Variable reluctance integral bearing sensor
US5440184A (en) * 1994-09-12 1995-08-08 The Timken Comapany Antifriction bearing capable of generating electrial energy
DE102009031609A1 (de) * 2009-07-03 2011-01-05 Schaeffler Technologies Gmbh & Co. Kg Lager mit Energieerzeugungseinheit
DE102010021160A1 (de) * 2010-05-21 2011-11-24 Schaeffler Technologies Gmbh & Co. Kg Wälzlager mit integriertem Generator
DE102011075548B4 (de) * 2011-05-10 2015-12-17 Schaeffler Technologies AG & Co. KG Lager mit einer Energieerfassungseinheit, insbesondere Pendelrollen-Lager zur Lagerung einer Walze
DE102011079080A1 (de) * 2011-07-13 2013-01-17 Schaeffler Technologies AG & Co. KG Lager mit einer Energieerzeugungseinheit
DE102011082804A1 (de) * 2011-09-16 2013-03-21 Schaeffler Technologies AG & Co. KG Lager, insbesondere Wälzlager, mit einer Energieerzeugungseinheit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006064094A (ja) * 2004-08-27 2006-03-09 Jtekt Corp 発電機付き転がり軸受装置
JP2009005430A (ja) * 2007-06-19 2009-01-08 Ntn Corp 発電機付軸受
DE102011075547A1 (de) 2011-05-10 2012-11-15 Schaeffler Technologies AG & Co. KG Wälzlager, insbesondere zweireihiges Wälzlager, mit einer Energieerzeugungseinheit, insbesondere zur Lagerung einer Walze
DE102011079081A1 (de) * 2011-07-13 2013-01-17 Schaeffler Technologies AG & Co. KG Lager mit Energieerzeugungseinheit

Also Published As

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