EP0828872B1 - Dispositif de commande pour groupes de broches a friction - Google Patents

Dispositif de commande pour groupes de broches a friction Download PDF

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Publication number
EP0828872B1
EP0828872B1 EP96914139A EP96914139A EP0828872B1 EP 0828872 B1 EP0828872 B1 EP 0828872B1 EP 96914139 A EP96914139 A EP 96914139A EP 96914139 A EP96914139 A EP 96914139A EP 0828872 B1 EP0828872 B1 EP 0828872B1
Authority
EP
European Patent Office
Prior art keywords
spindle
drive shaft
spindles
friction
unit 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.)
Expired - Lifetime
Application number
EP96914139A
Other languages
German (de)
English (en)
Other versions
EP0828872A1 (fr
Inventor
Johann Egbers
Detlef GÖRGENS
Ralf GÖRGENS
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.)
INA Waelzlager Schaeffler OHG
Original Assignee
INA Waelzlager Schaeffler OHG
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 INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Publication of EP0828872A1 publication Critical patent/EP0828872A1/fr
Application granted granted Critical
Publication of EP0828872B1 publication Critical patent/EP0828872B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc

Definitions

  • the present invention relates to a friction spindle unit with three a basic element in the corner points of an isosceles triangle rotatably mounted shafts, which are located in the center of the isosceles Triangular overlapping friction discs are attached.
  • Such an assembly is known for example from DE-U 75 25 192.
  • Each spindle has a pulley one strap engaging all pulleys. In this way it is ensured that all three spindles rotate at the same speed.
  • the Flat belts are used at maximum speed up to 25 m / sec. driven to the previously usual spindle speed of approx. 20,000 revolutions / min. to reach. The higher desired by the users Spindle speeds are with such a friction spindle aggregates unavailable.
  • the invention has for its object a generic To further develop the friction spindle unit in such a way that higher spindle speeds can be achieved or that in particular when driving by means of a flat belt translations are possible between the flat belt and the spindles enable these increased spindle speeds.
  • this object is achieved in that one around the center of the isosceles triangle rotatable and axially parallel to the waves arranged drive shaft is provided between the and each spindle means are provided for power transmission.
  • the drive shaft is used as a gear link to achieve a quick translation from drive to output used.
  • the drive shaft itself can, for example, by the flat belt are driven by the selection of suitable gear ratios the increased spindle speeds between the drive shaft and each spindle can be achieved.
  • Another significant advantage of the invention is the improved distribution of drive power. In the state of the art it drives spindle driven by the flat belt over the straps the two other spindles.
  • the strap provided for power transmission must therefore take over 2/3 of the total drive power. In contrast to According to the invention, take over the means provided for power transmission per spindle only 1/3 of the total drive power, since this means according to the invention are provided between the drive shaft and each spindle.
  • each spindle with its first spur toothing with a second spur toothing provided on the drive shaft combs is appropriate.
  • Such a gearbox makes it possible to omit the from a standing position the straps known in the art.
  • each spindle rolls with its friction wheel on the outer surface the drive shaft.
  • the Drive shaft where it is encompassed by the flat belt, small in diameter train, and where the friction wheels attack, train large in diameter, the diameter of the said friction wheels is chosen to be small.
  • the required gear ratios can be opened adjust particularly cheap way. Even with this training the diameter of the drive shaft where the flat belt engages train small. Where the spindles enter the hollow shaft is the The inner diameter of the hollow shaft is expediently much larger than where the flat belt engages.
  • the spindles can be used here, as above described, be provided with spur gears or friction wheels, the Hollow shaft on its inside diameter with the second spur gear if necessary is provided.
  • a magnetic coupling between each spindle and the drive shaft is provided.
  • Magnetic clutches per se have been known for some time that a power transmission between two waves.
  • Application examples with description of the structure and effect of the magnetic couplings are, for example, in the Catalog "Magnetfabrik Bonn, physical basics and scope of services" the company of the same name and located in Bonn.
  • the invention Arrangement of the drive shaft enables the use of such Magnetic clutches that easily transmit the relatively small torques can.
  • Such magnetic clutches offer the advantage, for example, that the Power transmission is non-contact, i.e. low-noise and low-vibration.
  • expedient Gear ratios selected as described above are.
  • This magnetic coupling can be constructed in such a way that a a first permanent magnet arranged on the circumference of the drive shaft is provided, a radial permanent magnet arranged on the circumference of each spindle is opposite, the permanent magnets are radially polarized.
  • the drive shaft can be arranged between the spindles, but also - if they are as Hollow shaft is formed - include the spindles.
  • the one between the first and the second permanent magnet resulting annular gap is calculated on the basis of the parameters of the permanent magnets and the geometric Easy to determine ratios.
  • every second spur toothing Spindle with a rotatable one in the center of the isosceles triangle Spur gear combs is particularly useful if the power transmission is frictional or by means of the described Magnetic coupling takes place.
  • the arrangement described ensures that the three spindles always run synchronously.
  • the drive shaft is designed as a hollow shaft, this is more appropriate Way according to claim 9 pot-shaped and in particular in the deep-drawing process made, with an axially from the plane of the Pulled-out pot bottom is provided, which on a in the center of the Base element fastened axis is rotatably mounted. On the outer circumference of the The sleeve then engages, for example, the flat belt for driving the drive shaft on.
  • Figure 1 shows in longitudinal section a first friction spindle unit according to the invention. Spacers 2 and friction disks are alternately on three spindles 1 3 arranged and axially clamped together.
  • the spindles 1 are in the corner points of an isosceles triangle and axially parallel to each other arranged, as can be seen for example from Figure 3.
  • the three spindles 1 are in a base element 4 at two axially adjacent locations rotatably mounted.
  • An upper deep groove ball bearing 5 and a lower deep groove ball bearing 6 are provided for mounting each spindle 1, the upper deep groove ball bearing 5 has a damping ring 7, which is between the base element 4 and an outer race 8 of the upper deep groove ball bearing 5 is arranged.
  • the spindles 1 With their lower ends, the spindles 1 are immersed in a hollow cylindrical Pot-shaped drive shaft 9, which is manufactured in the deep-drawing process.
  • a pot bottom 10 of the drive shaft 9 has one axially out of the plane of the pot bottom 10 pulled out and outward sleeve 11 on a in Center of the base element 4 fixed axis 12 by means of two axially adjacent deep groove ball bearing 13 is rotatably supported.
  • the spindles 1 wear their lower ends each have a friction disc 14, each on the inner circumference the hollow cylindrical drive shaft 9 are pressed.
  • On the outer circumference of the Sleeve 11 engages a flat belt 15 for driving the drive shaft 9.
  • the embodiment of Figure 2 differs from that of the Figure 1 essentially in that each spindle 1 additionally one toothed washer 16, a toothed belt 17 comprising the three spindles 1 is placed on each toothed disc 16. This way is a synchronous run of the three spindles 1 guaranteed.
  • the sleeve 11 is directed inwards, the flat belt on Attacks the outer circumference of the hollow cylindrical drive shaft 9.
  • Figure 3 shows one Cross section through the embodiment of Figure 2, clearly to can be seen that the three spindles 1 in the corner points of an isosceles Triangles are arranged.
  • Figure 4 differs from that of the Figure 2 only in that the friction discs 14 not as in Figure 2 on lower end of the spindles 1, but between the upper deep groove ball bearing 5 and the lower deep groove ball bearing 6 are arranged.
  • the cross section according to FIG. 5 clearly shows the arrangement of the spindles 1, with an additional one here Part of the cross-sectional base element 4 is visible.
  • the exemplary embodiment according to FIG. 6 differs from that from FIG Figure 2 essentially in that the drive shaft 9 does not have a on the Base element 4 fixed axis is rotatably mounted. Instead, the Sleeve 11 additionally has a shaft journal 18 which is fastened in the sleeve 11 is.
  • This shaft journal 18 can, for example, by the not shown Flat belt, but also from an electric motor, also not shown be driven.
  • FIG. 7 differs from that of FIG Figure 4 essentially by two features, only that in Figure 7 lower deep groove ball bearing 6 is shown.
  • the sleeve 11 of the drive shaft 9 is in contrast to FIG. 4, not axially inwards, but axially outwards pulled out, the flat belt 15 on the outer circumference of the sleeve 11th attacks.
  • the second essential difference from the exemplary embodiment 4 is that instead of a power transmission by means of A magnetic clutch 19 is provided for the friction disks.
  • This magnetic Coupling 19 consists essentially of outer and inner permanent magnets 20, 21.
  • the outer permanent magnets 20 are attached to the drive shaft 9.
  • the inner permanent magnets are radially adjacent to each spindle on the same plane 21 arranged.
  • the polarity of the outer and inner permanent magnets 20, 21 is aligned radially.
  • the cross section according to FIG. 8 shows the arrangement of the permanent magnets 20, 21 shown schematically.
  • the exemplary embodiment according to FIG. 9 differs of which from FIG. 7 essentially by two features.
  • First is the magnetic clutch 19 differently than in the embodiment according to Figure 7 provided at the lower ends of the spindles 1.
  • FIG. 10 shows the arrangement of the radially polarized permanent magnets 20, 21.
  • the exemplary embodiment according to FIG. 11 differs from that in FIG Figure 2 essentially by two features.
  • First is the drive shaft 9 tubular, the tubular drive shaft 9 between the three Spindles 1 is arranged.
  • the friction disks 14 of the spindles 1 are against the Pressed outer periphery of the tubular drive shaft 9.
  • the second distinctive Feature refers to the modified additional form-fitting Coupling between the three spindles 1.
  • the three spindles 1 each have a spur gear 25 which is rotatably connected to the spindle 1.
  • Another in the center of the isosceles Triangular spur gear 26 is via a slide bearing 27 rotatably mounted on the axis 12. Comb all three spur gears 25 the spur gear 26.
  • the exemplary embodiment according to FIG. 12 differs from that in FIG Figure 6 represented essentially by the following features:
  • the Drive shaft 9 also represents the output shaft of an electric motor 25.
  • the drive shaft 9 has here between the three spindles 1 engaging spur gear 29, mesh with the spur gears 30, of which one is attached to each spindle 1. With this friction spindle unit there is no additional one due to the positive power transmission Synchronization device as in the embodiment according to FIG 6 is provided.
  • Figure 13 shows the top view of the invention Friction spindle unit according to FIG. 12.
  • the spindles 32 are each with a small electric motor 37 connected.
  • the three electric motors have one thing in common Stator housing 38, which - as can be seen better in Figure 15 - for each Spindle 1 has a stator bore 39.
  • Each stator bore 39 is with Excitation windings and pole pieces provided by the in Figure 15 Circular ring with the position number 40 are shown symbolically.
  • runners formed from radially polarized permanent magnets attached, in Figures 14, 15 by an annulus with the position number 41 are shown symbolically.
  • the structure described here is typical for DC machines. The electrical connections are no further here treated.
  • each spindle 32 has a spur gear 42, wherein a toothed belt 43 is placed on the three spur gears 42.
  • the mode of operation of the friction spindle units according to the invention is as follows explained in more detail.
  • the drive has the same structure.
  • the drive shaft 9 is either driven by a flat belt 15 or an electric motor 28, wherein the rotation of the drive shaft 9 is transmitted to each of the three spindles 1.
  • Funds have been proposed.
  • FIGS. 1 to 5 and 11 is attached to each spindle 1, a friction wheel 14 which on the outer surface of the Drive shaft 9 rolls in frictional contact.
  • the spindles 1 are in the case of the exemplary embodiments additionally synchronized according to FIGS. 2 to 5 and 11.
  • the rubber ring 23 however, only grips until the spindle 1 in question is synchronized again with the Drive shaft 9 runs; the permanent magnets 20, 21 are oriented in this way again that the magnetic clutch 19 engages again. From this point on, the Rubber ring 23 only with no load.
  • the variant according to FIG particular preference on that power transmission between the drive shaft 9 and the spindles 1 via the intermeshing spur gears 29, 30 is guaranteed. This training eliminates additional means for synchronization of the three spindles 1.
  • each spindle 32 driven by its own electric motor 37.
  • the electric motor 37 can be made relatively small because of the low power transmission, wherein at the same time with correspondingly designed electric motors 37 very high speeds can be driven.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transmission Devices (AREA)

Claims (10)

  1. Appareil à broche à friction ayant trois broches (1) montées mobiles en rotation aux coins d'un triangle équilatéral sur un élément de base (4), broches (1) sur lesquelles sont fixées des plaques à friction (3) se chevauchant au centre du triangle équilatéral, caractérisé en ce qu'il est prévu un arbre de commande (9) rotatif autour du centre du triangle équilatéral et s'étendant axialement parallèle aux broches (1), il étant prévu entre l'arbre de commande (9) et chacune des broches (1) des moyens (14, 19, 29, 30) de transmission de puissance.
  2. Appareil à broche à friction selon la revendication 1, caractérisé en ce que chaque broche (1) engrène par sa première denture droite (30) sur une seconde denture droite (29) prévue sur l'arbre de commande (9).
  3. Appareil à broche à friction selon la revendication 1, caractérisé en ce que chaque broche (1) roule par sa roue de friction (14) sur la surface périphérique de l'arbre de commande (9).
  4. Appareil à broche à friction selon la revendication 1, caractérisé en ce que l'arbre de commande est configuré en arbre creux (9) dans lequel sont insérées les broches (1).
  5. Appareil à broche à friction selon la revendication 1, caractérisé en ce que l'arbre de commande (9) est agencé entre les broches (1).
  6. Appareil à broche à friction selon la revendication 1, caractérisé en ce qu'un accouplement à aimant (19) est prévu entre chaque broche (1) et l'arbre de commande (9).
  7. Appareil à broche à friction selon la revendication 6, caractérisé en ce qu'un premier aimant permanent (21) est agencé sur la périphérie de l'arbre de commande (9), et un seconde aimant permanent (20) est disposé radialement en face dudit premier aimant permanent (21) sur la périphérie de chaque broche (1).
  8. Appareil à broche à friction selon la revendication 1, caractérisé en ce que chaque seconde denture droite (25) de chaque broche (1) engrène sur une roue dentée droite (26) montée tournante au centre du triangle équilatéral.
  9. Appareil à broche à friction selon la revendication 4, caractérisé en ce que l'arbre creux (9) en forme de pot, fabriqué en tôle, en particulier par emboutissage, comprend au centre de son fond de pot (10) une douille (11) qui est tirée axialement en dehors du plan du fond de pot (10) et est montée mobile en rotation sur un essieu (12) fixé au centre de l'élément de base (4).
  10. Appareil à broche à friction ayant trois broches (32) montées mobiles en rotation aux coins d'un triangle équilatéral sur un élément de base (31), broches (32) sur lesquelles sont fixées des plaques à friction (3) se chevauchant au centre du triangle équilatéral, caractérisé en ce que chaque broche (32) est entraínée par un moteur électrique (37).
EP96914139A 1995-06-01 1996-04-26 Dispositif de commande pour groupes de broches a friction Expired - Lifetime EP0828872B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19520120A DE19520120A1 (de) 1995-06-01 1995-06-01 Antrieb für Friktionsspindelaggregate
DE19520120 1995-06-01
PCT/EP1996/001766 WO1996038605A1 (fr) 1995-06-01 1996-04-26 Dispositif de commande pour groupes de broches a friction

Publications (2)

Publication Number Publication Date
EP0828872A1 EP0828872A1 (fr) 1998-03-18
EP0828872B1 true EP0828872B1 (fr) 1999-07-07

Family

ID=7763422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96914139A Expired - Lifetime EP0828872B1 (fr) 1995-06-01 1996-04-26 Dispositif de commande pour groupes de broches a friction

Country Status (4)

Country Link
EP (1) EP0828872B1 (fr)
JP (1) JPH11506526A (fr)
DE (2) DE19520120A1 (fr)
WO (1) WO1996038605A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040864A1 (de) 2009-09-09 2011-03-10 Schaeffler Technologies Gmbh & Co. Kg Friktions-Motorspindel
WO2013017305A2 (fr) 2011-08-04 2013-02-07 Schaeffler Technologies AG & Co. KG Broche de moteur à friction et procédé d'utilisation de cette broche

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970491A (en) * 1959-07-02 1961-02-07 Dana Corp Bearing and speed reduction mechanism
CH384315A (de) * 1961-02-23 1964-11-15 Heberlein & Co Ag Reibradgetriebe
GB1419085A (en) * 1972-03-06 1975-12-24 Scragg & Sons Yarn processing
GB1379960A (en) * 1972-03-30 1975-01-08 Scragg & Sons False twisting apparatus
DE2319153C3 (de) * 1973-04-16 1980-11-13 Fag Kugelfischer Georg Schaefer & Co, 8720 Schweinfurt Vorrichtung zum Falschdrallen von Fäden
DE7525192U (de) * 1975-08-08 1976-05-20 Barmag Barmer Maschinenfabrik Ag, 5600 Wuppertal Friktionsfalschdraller
JPS5221443A (en) * 1975-08-06 1977-02-18 Kanebo Ltd Apparatus for producing processed yarn
FR2332352A1 (fr) * 1975-11-19 1977-06-17 Roannais Const Textiles Atel Perfectionnement aux broches de texturation fausse-torsion par disques
DE3245574C2 (de) * 1982-12-09 1985-10-03 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Verfahren zum Überwachen des Texturiervorgangs bei einem Friktionsfalschdrall-Aggregat
DE8532434U1 (de) * 1985-11-16 1986-01-02 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Reibrotor zum Falschdrallen von synthetischen Fäden
DE3743708C2 (de) * 1987-12-23 1995-08-31 Temco Textilmaschkomponent Falschdralltexturieraggregat mit elektromotorischem Antrieb
DE4110464A1 (de) * 1991-03-30 1992-10-01 Kugelfischer G Schaefer & Co Friktionsfalschdrallaggregat mit elektromotorischem antrieb

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009040864A1 (de) 2009-09-09 2011-03-10 Schaeffler Technologies Gmbh & Co. Kg Friktions-Motorspindel
EP2295621A1 (fr) 2009-09-09 2011-03-16 Schaeffler Technologies AG & Co. KG Broche à friction motorisée
WO2013017305A2 (fr) 2011-08-04 2013-02-07 Schaeffler Technologies AG & Co. KG Broche de moteur à friction et procédé d'utilisation de cette broche
DE102011080416A1 (de) 2011-08-04 2013-02-07 Schaeffler Technologies AG & Co. KG Friktions-Motorspindel und Verfahren zum Betrieb

Also Published As

Publication number Publication date
DE59602400D1 (de) 1999-08-12
WO1996038605A1 (fr) 1996-12-05
EP0828872A1 (fr) 1998-03-18
JPH11506526A (ja) 1999-06-08
DE19520120A1 (de) 1996-12-05

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