EP2295621B1 - Broche à friction motorisée - Google Patents

Broche à friction motorisée Download PDF

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Publication number
EP2295621B1
EP2295621B1 EP10171587A EP10171587A EP2295621B1 EP 2295621 B1 EP2295621 B1 EP 2295621B1 EP 10171587 A EP10171587 A EP 10171587A EP 10171587 A EP10171587 A EP 10171587A EP 2295621 B1 EP2295621 B1 EP 2295621B1
Authority
EP
European Patent Office
Prior art keywords
motor
friction
electric motor
spindle
spindle according
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.)
Not-in-force
Application number
EP10171587A
Other languages
German (de)
English (en)
Other versions
EP2295621A1 (fr
Inventor
Johann Egbers
Uwe Junginger
Jürgen Mümmler
Günter Schmid
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 EP2295621A1 publication Critical patent/EP2295621A1/fr
Application granted granted Critical
Publication of EP2295621B1 publication Critical patent/EP2295621B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/06—Spindles
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc

Definitions

  • the invention relates to a suitable for use in a Fritationsfalschdrallaggregat friction motor spindle according to the preamble of claim 1.
  • a generic friction motor spindle is from the EP 0 828 872 B1 with particular reference to Figures 14 and 15 of said document.
  • the friction false-twist unit disclosed therein comprises three friction motor spindles each having an electric direct drive. To synchronize the three spindles, each spindle in addition to the electric direct drive on a spur gear, wherein a toothed belt is placed on the three spur gears.
  • the invention has for its object to provide a suitable for a Fritationsfalschdrallaggregat, having an electric direct drive motor spindle, which in a compact, production-friendly structure by particularly favorable mechanical properties, in particular vibration properties, distinguished.
  • the friction motor spindle comprises a storage unit for a spindle, namely friction spindle, provided bearing unit, which includes two axially spaced rolling bearings, and provided for direct drive of the spindle, no own storage having electric motor.
  • a transmission element which is provided as part of a belt transmission, rotatably connected, wherein the electric motor of the bearing unit is immediately adjacent.
  • the electric motor is arranged axially between the gear element and the bearing unit.
  • the electric motor is arranged on the side facing away from the transmission element of the bearing unit.
  • the bearing unit preferably represents a preassembled structural unit with two bearings axially preloaded against each other, in particular ball bearings.
  • the electric motor is designed as an external rotor, wherein preferably its rotor projects beyond the bearing unit in the radial direction.
  • This embodiment is characterized by a high torque of the electric direct drive.
  • the air gap formed between the stator and the rotor of the electric motor is arranged radially outside of the outer rolling body raceways of the bearing unit.
  • the electric motor-the electric motor is designed as an internal rotor. In this case, no rotating parts are present on the outer circumference of the electric motor.
  • the synchronous motor of the friction motor spindle can be designed either as an AC motor or as a DC motor. Further, as possible engine types an asynchronous motor and an electronically commutated DC motor can be mentioned.
  • a reluctance motor which can be used as drive of the friction motor spindle, in particular a switched reluctance motor or a reluctance stepping motor, has advantages.
  • Such a motor has no magnets.
  • a reluctance motor designed as a stepping motor only requires a simply constructed motor drive electronics. The lower torque density of reluctance motors compared to permanent magnet synchronous motors is sufficient in many applications.
  • the rotor of the electric motor or a component of the rotor of the electric motor may be formed integrally with the spindle.
  • the rotor may be rotatably connected to the spindle, for example, by a press or adhesive connection.
  • the electric direct drive that is, gearless electric drive, sensorless vector control, a U / f control or control via a mounted on the electric motor or built-in rotation angle position transmitter.
  • a designated generally by the reference numeral 1 friction motor spindle is intended for installation in a friction false-twist unit, with respect to its principal function on the above-mentioned prior art and on the DE 10 2005 023 928 A1 is referenced.
  • the friction motor spindle 1 comprises an electric motor 2 which is provided for the direct drive of a spindle 3, which carries not shown friction discs.
  • the bearing of the spindle 3 and the electric motor 2 by means of a bearing unit 4, the two rolling bearings 5, namely axially against each other preloaded ball bearings, and in the embodiments of the Figures 1 and 2 is arranged axially between the electric motor 2 and a nnem for supporting the friction discs provided section 6 of the spindle 3.
  • the electric motor 2 is arranged between the bearing unit 4 and the section 6 of the spindle 3.
  • the electric motor 2 which works as well as the rotatable gear element 7 without its own bearing, has a stator 8 and a rotor 9, wherein the stator 8 has electric coils 10 that can be supplied with energy via lines, not shown, while the rotor 9 has permanent magnets 11, in particular rare earth magnets, is equipped. Between the stator 8 and the rotor 9, an air gap 12 is formed.
  • the rotor 9 is designed as a cup-shaped outer rotor and equipped on its cylindrical inner wall with the permanent magnet 11.
  • the annular air gap 12 is arranged radially outside of the pitch circle described by the center points of the individual rolling bodies 13, namely balls, of a roller bearing 5.
  • this relation applies to each of the rolling bearings. Due to the large diameter of the annular air gap 12, a high torque can be generated even without costly cooling of the electric motor 2, whereby a compact form of the friction motor spindle 1 remains given by the thin-walled construction of the rotor 9.
  • the energizable coils 12 are connected via an intermediate piece 14, which has two hollow cylindrical sections of different diameters and is attributable to the stator 8, fixedly connected to a non-rotating jacket 15 of the bearing unit 4.
  • the concentric to the intermediate piece 14 spindle 3 is inserted through this without contact with the intermediate piece 14 and connected via a Verwarschellesskontur not shown with a disc-shaped bottom portion 16 of the rotor 9 and the transmission element 7.
  • the permanent magnets 11 are applied directly to the spindle 3, for example glued, while the stator 8 is fixed in this case by means of an intermediate piece 14 to the bearing unit 4.

Claims (14)

  1. Broche à friction motorisée, comprenant une unité de palier (4) prévue pour le support d'une broche (3), qui comprend deux paliers à roulement (5) espacés axialement l'un de l'autre, ainsi qu'un moteur électrique (2) prévu pour l'entraînement direct de la broche (3), ne présentant aucun support sur palier propre, et un élément de transmission (7) connecté de manière solidaire en rotation à la broche (3), formant une partie d'une transmission à courroie, caractérisée en ce que le moteur électrique (2) est directement adjacent à l'unité de palier (4).
  2. Broche à friction motorisée selon la revendication 1, caractérisée en ce que le moteur électrique (2) est disposé axialement entre un élément de transmission (7) et l'unité de palier (4).
  3. Broche à friction motorisée selon la revendication 1, caractérisée en ce que l'unité de palier (4) est disposée axialement entre le moteur électrique (2) et l'élément de transmission (7).
  4. Broche à friction motorisée selon la revendication 1, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de rotor extérieur.
  5. Broche à friction motorisée selon la revendication 4, caractérisée en ce que le moteur électrique (2) présente un rotor (9) qui dépasse de l'unité de palier (4) dans la direction radiale.
  6. Broche à friction motorisée selon la revendication 1, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de rotor intérieur.
  7. Broche à friction motorisée selon la revendication 4 ou 6, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de moteur synchrone.
  8. Broche à friction motorisée selon la revendication 7, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de moteur excité par aimant permanent.
  9. Broche à friction motorisée selon la revendication 4 ou 6, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de moteur à courant continu à commutation électronique.
  10. Broche à friction motorisée selon la revendication 4 ou 6, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de moteur asynchrone.
  11. Broche à friction motorisée selon la revendication 4 ou 6, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de moteur à réluctance.
  12. Broche à friction motorisée selon la revendication 11, caractérisée en ce que le moteur électrique (2) est réalisé sous forme de moteur pas à pas à réluctance.
  13. Broche à friction motorisée selon la revendication 1, caractérisée en ce que l'élément de transmission (7) est réalisé sous forme de poulie à cou dentée.
  14. Broche à friction motorisée selon la revendication 1, caractérisée en ce que les paliers à roulement (5) sont réalisés sous forme de roulements à billes précontraints axialement les uns contre les autres.
EP10171587A 2009-09-09 2010-08-02 Broche à friction motorisée Not-in-force EP2295621B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009040864A DE102009040864A1 (de) 2009-09-09 2009-09-09 Friktions-Motorspindel

Publications (2)

Publication Number Publication Date
EP2295621A1 EP2295621A1 (fr) 2011-03-16
EP2295621B1 true EP2295621B1 (fr) 2011-11-02

Family

ID=43304657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10171587A Not-in-force EP2295621B1 (fr) 2009-09-09 2010-08-02 Broche à friction motorisée

Country Status (4)

Country Link
EP (1) EP2295621B1 (fr)
CN (1) CN102021700B (fr)
AT (1) ATE531840T1 (fr)
DE (1) DE102009040864A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011080416A1 (de) * 2011-08-04 2013-02-07 Schaeffler Technologies AG & Co. KG Friktions-Motorspindel und Verfahren zum Betrieb
CN104294431B (zh) * 2013-07-19 2019-06-11 舍弗勒技术股份两合公司 假捻器锭轴及假捻器
CN104294432B (zh) * 2013-07-19 2018-05-29 舍弗勒技术股份两合公司 假捻器锭轴及假捻器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545849A (en) * 1978-09-27 1980-03-31 Oda Gosen Kogyo Kk False twisting method and apparatus
DE3743708C2 (de) * 1987-12-23 1995-08-31 Temco Textilmaschkomponent Falschdralltexturieraggregat mit elektromotorischem Antrieb
DE19520120A1 (de) 1995-06-01 1996-12-05 Schaeffler Waelzlager Kg Antrieb für Friktionsspindelaggregate
CN1052517C (zh) * 1995-06-01 2000-05-17 Ina滚柱轴承制造两合公司 摩擦轴装置的驱动机构
JPH10259529A (ja) * 1997-03-19 1998-09-29 Murata Mach Ltd 仮撚り装置
CN1089384C (zh) * 1998-12-07 2002-08-21 帝人制机株式会社 马达驱动式三轴摩擦假捻装置
DE102005023928A1 (de) 2005-05-24 2006-11-30 Schaeffler Kg Friktionsfalschdrallaggregat

Also Published As

Publication number Publication date
CN102021700B (zh) 2014-11-19
EP2295621A1 (fr) 2011-03-16
ATE531840T1 (de) 2011-11-15
CN102021700A (zh) 2011-04-20
DE102009040864A1 (de) 2011-03-10

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