WO2015058762A1 - Palier à roulement doté d'un générateur électrique intégré en structure modulaire - Google Patents

Palier à roulement doté d'un générateur électrique intégré en structure modulaire Download PDF

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Publication number
WO2015058762A1
WO2015058762A1 PCT/DE2014/200547 DE2014200547W WO2015058762A1 WO 2015058762 A1 WO2015058762 A1 WO 2015058762A1 DE 2014200547 W DE2014200547 W DE 2014200547W WO 2015058762 A1 WO2015058762 A1 WO 2015058762A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolling bearing
teeth
bearing
groove
rolling
Prior art date
Application number
PCT/DE2014/200547
Other languages
German (de)
English (en)
Inventor
Thomas Rink
Original Assignee
Schaeffler Technologies AG & 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 & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2015058762A1 publication Critical patent/WO2015058762A1/fr

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
    • F16C33/46—Cages for rollers or needles
    • F16C33/49—Cages for rollers or needles comb-shaped
    • F16C33/494—Massive or moulded comb cages
    • F16C33/495—Massive or moulded comb cages formed as one piece cages, i.e. monoblock comb cages
    • F16C33/497—Massive or moulded comb cages formed as one piece cages, i.e. monoblock comb cages made from metal, e.g. cast or machined comb cages
    • 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
    • F16C33/56—Selection of substances
    • 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
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • 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
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • 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
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/30—Electric properties; Magnetic properties
    • F16C2202/40—Magnetic
    • F16C2202/42—Magnetic soft-magnetic, ferromagnetic
    • 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

Definitions

  • the present invention relates to a rolling bearing with integrated electric generator.
  • DE 202 02 536 U1 describes a device for monitoring a bearing assembly in a rolling mill with at least one bearing for supporting a rotating machine part relative to a stationary housing.
  • the storage comprises at least one sensor for detecting at least one process variable.
  • the sensor is connected to a transmitting unit, which transmits the measured sensor data, for example via radio or induction, to a transmitter.
  • an electric generator for power supply of sensor or sensor unit is integrated in the bearing assembly, an electric generator.
  • a first generator element is rotatably connected, which cooperates with a second, non-rotatably connected to the housing generator element.
  • a magnetic ring is disposed on the rotating machine part and a coil in the housing. When the shaft is rotated, the magnetic ring in the coil induces an electrical voltage, which is forwarded to the transmitting unit.
  • DE 695 24 014 T2 shows a roller bearing with built-in electric generator.
  • the generator consists of a rotor, which rotates with the shaft and the inner ring, and a stator, which is attached to the outer ring.
  • the inner ring is constructed of two components.
  • the rotor in this embodiment comprises a spacer ring which separates the two components of the inner ring from each other and a series of permanent magnets which are arranged at equal intervals in the circumferential direction around the spacer ring.
  • the outer surface of the spacer ring on flats, in each of which a permanent magnet, preferably via an adhesive connection, is attached.
  • the stator attached to the outer ring has a lamellar structure with teeth and the teeth separating from each other winding slots. Each tooth carries a coil that surrounds the tooth.
  • the rolling bearing described is preferably used in a railway carriage for charging a battery, which feeds actuators for the rail car brakes. Summary of the invention
  • the object of the present invention is to provide a rolling bearing with an integrated electric generator available, wherein the generator is designed such that it can be adapted to different Wälzlager tipmesser with little effort.
  • the rolling bearing according to the invention comprises two bearing rings and a cage arranged between the bearing rings for receiving rolling elements and an integrated into the rolling electric generator with a series of permanent magnets and a series of teeth, each carrying a coil winding and arranged in the circumferential direction on one of the two bearing rings are.
  • the serving for receiving the teeth bearing ring has a circumferential groove for receiving the teeth, each tooth is fixed individually in the circumferential groove.
  • the permanent magnets are arranged on the cage or on the other of the two bearing rings in the circumferential direction. The magnetic return of the permanent magnets is taken over by the corresponding bearing component (bearing ring, cage).
  • a significant advantage of the rolling bearing according to the invention is that the modular design of the integrated generator allows an individual performance adjustment, which makes it easy to adapt to different types of bearings.
  • the generator is not bound by its modular design to a specific diameter, but covers a larger diameter range.
  • the groove contour, the groove width and the individual tooth with coil winding are firmly defined and thus represent the key elements of the module.
  • the integrated generator is characterized by a simple design.
  • the number of components of the generator is limited to the essentials.
  • the use of a circumferential groove in the bearing ring for attachment of the teeth allows a largely arbitrary positioning of the individual teeth, so that depending on the power requirement, the number of teeth used and their position can be varied accordingly. In this way, corresponding degrees of freedom can be obtained.
  • Specific to the bearing only the magnetic circuit has to be adapted accordingly.
  • the modular design of the generator also allows segment areas remain free at the periphery of the bearing, ie have no components of the generator. The thus available space in the free segment areas can be used for the sensor or power electronics.
  • the groove serving to receive the teeth is dovetail-shaped.
  • a dowel pin For attachment of the individual teeth in the dovetail groove is preferably used in each case a dowel pin.
  • the dowel pin expands the tooth in the groove base. As a result, a clamping effect is achieved and the tooth securely fixed in the groove.
  • the serving for receiving the teeth groove may also be designed U-shaped.
  • the individual teeth are fastened via corresponding mechanical fastening means in the U-shaped groove. As appropriate, an attachment has proven by means of a captive ringoder riveted joint.
  • the coil windings of the individual teeth are connected in series. As a result, a high output voltage can be achieved at low speeds.
  • each coil of a tooth is electrically connected to this guide ring during integration into the bearing ring, by means of clamping or cutting technology.
  • the teeth have laminated cores in salient pole design.
  • the individual sheets of the single tooth are correspondingly twist-proof sheet-packed and electrically isolated from each other.
  • the rolling bearing according to the invention can u. a. be used for storage of a roll in a machine of the steel industry.
  • the pressure load is determined by means of a sensor.
  • the sensor With the help of built-in rolling bearing electric generator, the sensor can be continuously supplied with the required energy.
  • Fig. 1 is a longitudinal sectional view of a rolling bearing according to the invention in a first embodiment
  • Fig. 2 is a detail A of Fig. 1;
  • FIG. 3 shows a cross-sectional view of the rolling bearing according to the invention along a section line B-B in FIG. 1;
  • FIG. 4 shows a detail B from FIG. 3;
  • FIG. 5 shows a section of FIG. 1 showing the inner ring
  • Fig. 6 is a detail X of Figure 5;
  • FIG. 7 shows a longitudinal sectional view of the rolling bearing according to the invention in a second embodiment
  • FIG. 8 shows a detail Z from FIG. 7;
  • FIG. 10 shows a detail Y from FIG. 9.
  • Figs. 1 and 3 show sectional views of a rolling bearing 01 according to the invention in a first embodiment.
  • the rolling bearing 01 comprises an inner ring 02, an outer ring 03, a cage 04 and rolling elements 05, which are held by means of cage 04 at the same distance.
  • the rolling bearing 01 shown is as double-row roller bearing 01 executed. Of course, single-row roller bearings 01 are also possible.
  • an electric generator 07 is integrated, which is modular. The structure of the electric generator 07 will be explained in more detail with reference to FIGS. 2, 4 and 6, which show detailed views of the rolling bearing 01.
  • the electric generator 07 comprises a series of permanent magnets 08, which are arranged on the cage 04 and fixed there in a suitable manner, for example via an adhesive connection.
  • the electric generator 07 comprises a series of teeth 09, which are fastened to the inner ring 02.
  • the magnetic return is provided here by the inner ring 02.
  • To accommodate the teeth 09 is a circumferential dovetail-shaped groove 10, which is introduced into the inner ring 02.
  • the number of teeth 09 corresponds to the number of permanent magnets 08. If the number of teeth 09 changes, the number of permanent magnets 08 must accordingly be adjusted accordingly.
  • Each tooth 09 consists of laminated cores 14 (see Fig. 2, 6), which are designed in salient pole.
  • the individual sheets of the tooth 09 are torsionally sheet-packed and electrically isolated from each other.
  • the winding of the teeth 09 can subsequently be realized by a needle winder to provide a coil winding 15.
  • the coil winding 15 can be mounted in advance and the tooth 09 with the coil winding 15 are shed accordingly.
  • the coil windings 15 of the teeth 09 can be connected in series to achieve high output voltages at low speeds. They are 1-phase or 3-phase phase coil windings 15 possible. A 3-phase coil winding 15 can be switched in the star and in the triangle.
  • the coil windings 15 of the teeth 09 can be connected to each other by an electrical guide ring (not shown) in the groove bottom 13 electrically connected to each other. In this embodiment, each coil winding 15 of a tooth 09 in the integration into the inner ring 02 is electrically conductively connected to the guide ring.
  • the coil support 15 supporting the coil support is preferably made of two half-shells made of plastic, such as PA 66, and is positioned by a snap connection to the respective tooth 09.
  • teeth 09 and permanent magnets 08 are arranged around the entire circumference of the roller bearing 01. Alternatively, however, it is possible to arrange teeth 09 and permanent magnets 08 only in certain segment areas. In this way, an individual power adjustment can be realized with little effort.
  • the free segment areas, which have no components 08, 09 of the electric generator 07, can be used, for example, for the sensors or power electronics.
  • FIGS. 7 and 9 show sectional views of the rolling bearing according to the invention in a second embodiment.
  • serving for receiving the teeth 09 groove 10 is executed in this embodiment U-shaped.
  • the attachment of the individual teeth 09 in the groove 10 is effected by a captive screw 17 or alternatively by means of a riveted joint.
  • the teeth 09 can be securely fixed in the groove 10.
  • the teeth 09 can in turn be placed at any position in the groove 10 to enable inter alia a power adjustment.
  • the arrangement of the permanent magnets 08 is to be adapted to the arrangement of the teeth 09 accordingly. LIST OF REFERENCE NUMBERS

Abstract

La présente invention concerne un palier à roulement (01) comprenant deux bagues (02, 03) de palier et une cage (04) qui est disposée entre lesdites bagues (02, 03) de palier et est destinée à recevoir des corps de roulement (05), ainsi qu'un générateur électrique (07) intégré dans le palier à roulement (01) et pourvu d'une rangée d'aimants permanents (08) et d'une rangée de dents (09) portant chacune un enroulement (03) de bobine et disposées dans la direction périphérique au niveau l'une des deux bagues (02, 15) de palier. Le palier à roulement selon la présente invention se caractérise en particulier en ce que la bague (02, 03) de palier destinée à recevoir les dents (09) comporte une rainure périphérique (10) destinée à recevoir les dents (09) et en ce que les aimants permanents (08) sont disposés au niveau de la cage (04) ou sur l'autre des deux bagues (02, 03) de palier dans la direction périphérique.
PCT/DE2014/200547 2013-10-21 2014-10-14 Palier à roulement doté d'un générateur électrique intégré en structure modulaire WO2015058762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310221271 DE102013221271A1 (de) 2013-10-21 2013-10-21 Wälzlager mit integriertem elektrischem Generator in modularer Bauweise
DE102013221271.2 2013-10-21

Publications (1)

Publication Number Publication Date
WO2015058762A1 true WO2015058762A1 (fr) 2015-04-30

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ID=52016353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200547 WO2015058762A1 (fr) 2013-10-21 2014-10-14 Palier à roulement doté d'un générateur électrique intégré en structure modulaire

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DE (1) DE102013221271A1 (fr)
WO (1) WO2015058762A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112145548B (zh) * 2020-08-31 2021-12-28 清华大学 自供能滚动轴承、轴承组件和旋转机械

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20202536U1 (de) 2002-02-19 2002-05-02 Skf Ab Vorrichtung zur Überwachung einer Lageranordnung
DE69524014T2 (de) 1994-09-12 2002-07-04 Timken Co Wälzlager mit eingebautem elektrischen Generator
JP2009005430A (ja) * 2007-06-19 2009-01-08 Ntn Corp 発電機付軸受
DE102009052954A1 (de) * 2009-11-12 2011-05-19 Schaeffler Technologies Gmbh & Co. Kg Pendelrollenlager
WO2012152537A1 (fr) * 2011-05-10 2012-11-15 Schaeffler Technologies AG & Co. KG Palier à roulement, en particulier palier à roulement à deux rangées, comprenant une unité génératrice d'énergie, en particulier pour le support d'un rouleau

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD62882A3 (de) * 1967-10-06 1968-07-20 Günther Bader Polrad für Innenpolgeneratoren
DE102010021159B4 (de) * 2010-05-21 2019-03-28 Schaeffler Technologies AG & Co. KG Wälzlager mit einer integrierten permanenterregten elektrischen Maschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69524014T2 (de) 1994-09-12 2002-07-04 Timken Co Wälzlager mit eingebautem elektrischen Generator
DE20202536U1 (de) 2002-02-19 2002-05-02 Skf Ab Vorrichtung zur Überwachung einer Lageranordnung
JP2009005430A (ja) * 2007-06-19 2009-01-08 Ntn Corp 発電機付軸受
DE102009052954A1 (de) * 2009-11-12 2011-05-19 Schaeffler Technologies Gmbh & Co. Kg Pendelrollenlager
WO2012152537A1 (fr) * 2011-05-10 2012-11-15 Schaeffler Technologies AG & Co. KG Palier à roulement, en particulier palier à roulement à deux rangées, comprenant une unité génératrice d'énergie, en particulier pour le support d'un rouleau

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