EP2657379A2 - Rotor de tissage à extrémité ouverte - Google Patents

Rotor de tissage à extrémité ouverte Download PDF

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Publication number
EP2657379A2
EP2657379A2 EP13001318.8A EP13001318A EP2657379A2 EP 2657379 A2 EP2657379 A2 EP 2657379A2 EP 13001318 A EP13001318 A EP 13001318A EP 2657379 A2 EP2657379 A2 EP 2657379A2
Authority
EP
European Patent Office
Prior art keywords
rotor
open
end spinning
cup
shaft
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.)
Granted
Application number
EP13001318.8A
Other languages
German (de)
English (en)
Other versions
EP2657379B1 (fr
EP2657379A3 (fr
Inventor
Heinz-Georg Wassenhoven
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Saurer Germany GmbH 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 Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP2657379A2 publication Critical patent/EP2657379A2/fr
Publication of EP2657379A3 publication Critical patent/EP2657379A3/fr
Application granted granted Critical
Publication of EP2657379B1 publication Critical patent/EP2657379B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/10—Rotors

Definitions

  • the present invention relates to an open-end spinning rotor, comprising a rotor shaft, a rotor cup and a coupling device for releasably connecting the rotor shaft and rotor cup, the coupling device having arranged in a holding element locking body, which in operation of the open-end spinning rotor due to the centrifugal force, the rotor cup and lock the rotor shaft in the axial direction and wherein the locking bodies associated with an elastic element and the elastic element with the locking bodies cooperates such that the locking body lock the rotor cup with the rotor shaft even at a standstill in the axial direction.
  • open-end rotor spinning machines used in the textile industry were usually designed so that the spinning rotors with their rotor shafts were mounted in the bearing gussets of a so-called support disk bearing and were driven by a machine-tangential belt.
  • spinning rotors in which the rotor shaft and the rotor cup are usually connected almost inextricably by means of a press fit, can be installed or removed from the front through the opened rotor housing if necessary, for example during wear or to manufacture another type of yarn on the rotor spinning machine become.
  • single-motor driven spinning rotors are becoming increasingly important.
  • Such a single-motor driven spinning rotor is for example from the P 0 972 868 A2 known.
  • the disclosed spinning rotor is supported with its rotor shaft in a magnetic bearing arrangement.
  • the magnetic bearing assembly consists of a front and a rear bearing, these bearings in turn each have axially opposed permanent magnet rings.
  • One of these permanent magnet rings is in each case fixed on the stator, while the other permanent magnet ring rotates with the rotor shaft.
  • the rotor cup is in each case releasably connected to the rotor shaft in these spinning rotors.
  • a coupling device which consists of a magnetic bearing for axial locking of the rotor shaft and rotor cup and a mechanical anti-rotation, which prevents any relative rotational movement between the rotor shaft and rotor cup over positive engagement exists.
  • a receiving sleeve is inserted by means of a press fit.
  • a permanent magnet and a polygonal socket are inserted in the axial direction one behind the other.
  • the rotor cup has a stub axle with an outer polygon, which corresponds to the polygonal socket.
  • shaft-hub connections Types of connections that transmit torques and power from a rotating shaft or spigot to a hub or vice versa from a rotating hub to a shaft or spigot are referred to in the art as shaft-hub connections.
  • the internal polygon forms in conjunction with the external polygon a positive shaft-hub connection.
  • the DE 38 15 182 A1 discloses various examples in which the coupling in the axial direction as well as the torque transmission from the rotor shaft to the rotor cup is realized either by a frictional or a positive connection.
  • the rotor cup is provided on the outer region of its bottom with connecting pins which are introduced into two axially parallel bores of a coupling disk fastened to the rotor shaft.
  • a coupling disk fastened to the rotor shaft For axial fixation, inter alia, a wavy curved spring steel strip or an S-shaped elastic locking element are proposed. Both parts deform under the influence of centrifugal forces and then engage in detents at the end of the connecting pin. At rest, rotor cup and rotor shaft are not axially locked. Presumably for this reason, the connecting pins are formed relatively long to prevent falling out of the rotor cup at rest under the influence of gravity. The long connecting pins are rather unfavorable for handling.
  • the generic DE 196 18 027 A1 discloses a coupling device between rotor cup and rotor shaft, which produces an exclusively non-positive connection both in the axial direction and for torque transmission. It is a centrifugal clutch with spherical locking bodies. When the spinning rotor is rotated, the centrifugal forces due to the design of the clutch provide for locking in the axial direction as well as in the direction of rotation.
  • the clutch also has an elastic element, the Example may be formed as a rubber block or as a spring element. The elastic element is arranged such that the locking bodies are pressed outwardly without rotational movement with respect to the axis of rotation of the spinning rotor. In this way, a lock is present even when the spinning rotor is at a standstill. For connecting the spinning cup and the rotor shaft, the locking bodies can be easily pushed together.
  • a disadvantage of this arrangement is that with increasing rotational speed of the spinning rotor, the purely non-positive transmission of the torque is no longer reliable.
  • the coupling should be formed with the locking body as a separate component.
  • the manufacturing tolerances add up according to the number of components, so that more components lead to greater inaccuracies and thus to a larger imbalance. At the high speeds with which spinning rotors are operated, this unbalance can lead to problems, up to the damage of the spinning unit.
  • the holding element is designed as a pin and the pin is shaped so that it produces a positive shaft-hub connection between the rotor shaft and rotor cup in conjunction with a correspondingly shaped hub.
  • the invention realizes in a simple manner a positive connection for transmitting a torque from the rotor shaft to the rotor cup. As a result, the torque can be transmitted reliably even at higher speeds.
  • the inventive shape of the holding element for the locking body a compact and space-saving arrangement is created. A separate axle element is not required for the positive connection.
  • the arrangement according to the invention has few individual parts. Thereby, a summation of manufacturing tolerances can be reduced, so that the spinning rotor has a small imbalance.
  • the positive connection can be achieved for example by a splined shaft profile, a polygonal profile or a serration.
  • a simple but effective form for the positive connection is a circular cylindrical shape with at least one flat surface on the circumference.
  • the hub has receptacles that at least partially receive the locking bodies in the assembled state.
  • the centrifugal force acting in the radial direction initially causes a frictional locking in the axial direction.
  • the receptacle may be formed, for example, as a V-shaped groove.
  • the groove is present in the region of the locking body.
  • the groove is advantageously formed circumferentially along the circumference of the hub.
  • the receptacles each have a surface against which the locking body press
  • the rotor shaft and the rotor cup each have a stop for limiting an axial movement
  • the receptacles and the surface are formed so that the force acting in the radial direction the locking body is converted into a force in the axial direction of the open-end spinning rotor and thereby the stops of the rotor shaft and the rotor cup are pressed against each other.
  • the receptacles are formed as a V-shaped groove, this effect can be achieved by an asymmetrical structure of the groove.
  • the groove is designed so that the locking body press only against one of the inclined surfaces and so the radial force is converted into an axial force. If stops of rotor cup and rotor shaft are pressed against each other by the axial force, you get an optimal locking in the axial direction.
  • the stops have stop surfaces.
  • the abutment surfaces are preferably arranged perpendicular to the axis of the open-end spinning rotor and their geometric center of gravity is on the axis of the open-end spinning rotor.
  • the attacks is additionally achieved by the axial force against the attacks a centering of the rotor cup. That is, an angular offset between the axis of the rotor shaft and the axis of the rotor cup is avoided.
  • centrifugal clutches of the type claimed spherical locking body are particularly advantageous.
  • a spherical locking body works particularly effectively in conjunction with a V-shaped groove on the hub.
  • the spherical one Locking body lies against an inclined surface of the groove, so that the centrifugal force is converted into an axial force.
  • the holding element is connected to the locking bodies fixed to the rotor shaft and the hub is formed as part of the rotor cup. Due to the arrangement of the holding element on the rotor shaft, the rotor cup, which is exchanged when needed, can be made particularly simple.
  • the invention also relates to a rotor cup for an open-end spinning rotor having a hub, wherein the hub is shaped to provide a positive shaft-hub connection in conjunction with a correspondingly shaped journal of a rotor shaft, the hub having seats on its inner circumference which are adapted to at least partially receive locking bodies connected to a rotor shaft, the seats having a surface formed such that a force exerting a locking body on the surface in the radial direction into a force in the axial direction of the rotor cup is converted.
  • the rotor cup has stops with stop surfaces which are arranged perpendicular to the axis of the rotor cup and whose geometric center of gravity is located on the axis of the rotor cup.
  • the spinning rotor 1 comprises a rotor shaft 4 and a rotor cup 2.
  • the rotor shaft 4 and the rotor cup 2 are releasably connected to each other, so that the rotor cup 2 can be replaced if necessary.
  • the rotor shaft 4 is connected to a drive, not shown. Since the rotor cup 2 is interchangeable, the rotor shaft 4 can be firmly integrated in the drive, preferably a single drive.
  • the spinning rotor 1 has a coupling device 3.
  • the rotor shaft 4 comprises a pin 5 and the rotor cup 2 a hub 8.
  • the outer shape of the pin 5 and the inner shape of the hub 8 are mutually corresponding, so that when plugging the rotor cup 2 on the pin 5 of the rotor shaft 4 a positive shaft-hub connection results and thus a torque can be transmitted.
  • the in the Figures 1 and 2 embodiment shown has a pin 5 with a circular cylindrical outer shape. To one achieve positive connection, the circular cylinder has two flat surfaces on its circumference.
  • the FIGS. 3 to 5 show exemplary alternative forms for a positive rotation between pin 5 and hub 8.
  • the Fig. 3 shows splined shaft profiles.
  • the Fig. 4 represents polygon profiles.
  • the Fig. 5 shows forms with a serration.
  • the pin 5 is simultaneously formed as a holding element for the locking body 6.
  • 6 two balls are available as a locking body.
  • an elastic element 7 is arranged, which presses the balls 6 also in the idle state of the spinning rotor to the outside.
  • the elastic element 7 may be formed, for example, as a rubber block or as a spring.
  • two balls 6 there is a simple structure.
  • the two balls 6 can be introduced with the elastic element in a transverse bore of the pin 5. By a so-called embossing creates a small bead at the ends of the transverse bore. By this embossment, the balls 6 are held with the elastic element 7 in the transverse bore.
  • the balls 6 are pressed into the receptacles 9 of the hub 8 of the rotor cup 2.
  • the receptacles 9 are formed as a V-shaped circumferential groove in the hub.
  • the Fig. 6 shows a part of the Fig. 2 and illustrates the operation of a possible axial locking.
  • the arrangement is designed such that the ball 6 only presses against the surface 12 facing the rotor shaft 4.
  • the centrifugal force or the force of the elastic element 7 is converted into an axial force.
  • the axial force is directed so that the stop 11 of the rotor cup 2 is pressed against the stop 10 of the rotor shaft 4.
  • the stops 10 and 11 are arranged rotationally symmetrical.
  • the geometric center of gravity of the abutment surfaces is thus on the axis of rotation of the open-end spinning rotor 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP13001318.8A 2012-04-28 2013-03-15 Rotor à filer à bout libre Active EP2657379B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012008693A DE102012008693A1 (de) 2012-04-28 2012-04-28 Offenend-Spinnrotor

Publications (3)

Publication Number Publication Date
EP2657379A2 true EP2657379A2 (fr) 2013-10-30
EP2657379A3 EP2657379A3 (fr) 2014-04-16
EP2657379B1 EP2657379B1 (fr) 2017-02-08

Family

ID=47912856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13001318.8A Active EP2657379B1 (fr) 2012-04-28 2013-03-15 Rotor à filer à bout libre

Country Status (5)

Country Link
US (1) US8875482B2 (fr)
EP (1) EP2657379B1 (fr)
CN (1) CN103374770B (fr)
BR (1) BR102013010578B1 (fr)
DE (1) DE102012008693A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012022092A1 (de) 2012-11-10 2014-05-15 Saurer Germany Gmbh & Co. Kg Offenend-Spinnrotor
DE102013108199A1 (de) * 2013-07-31 2015-02-05 Maschinenfabrik Rieter Ag Offenend-Spinnrotor mit einer Rotortasse, einem Rotorschaft sowie einer Kupplungsvorrichtung
DE102014002102A1 (de) * 2014-02-15 2015-08-20 Saurer Germany Gmbh & Co. Kg Offenend-Spinnrotor
DE102016108859A1 (de) * 2016-05-13 2017-11-16 Rieter Ingolstadt Gmbh Spinnrotor für eine Offenend-Spinnvorrichtung mit einem reibwerterhöhenden Belag und Offenend-Spinnvorrichtung
DE102016109509A1 (de) * 2016-05-24 2017-11-30 Rieter Ingolstadt Gmbh Rotorschaft für einen in einer Magnetlageranordnung berührungslos gelagerten Spinnrotor und Spinnrotor
CN110306264B (zh) * 2019-07-16 2021-07-27 济宁精忠纺织有限公司 一种便于高转速纺纱转杯自由端安装拆卸的装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815182A1 (de) 1988-05-04 1989-11-16 Wolfgang Grahamer Spinnrotor
DE19618027A1 (de) 1996-05-04 1997-11-06 Rieter Ingolstadt Spinnerei Offenend-Spinnrotor
EP1156142B1 (fr) 2000-05-16 2004-04-21 Saurer GmbH & Co. KG Rotor de filage à bout libre

Family Cites Families (27)

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Publication number Priority date Publication date Assignee Title
US2750828A (en) * 1956-06-19 Le roy j
DE2939326C2 (de) * 1979-09-28 1982-05-19 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-Spinnrotor
US4515535A (en) * 1983-08-15 1985-05-07 Baxter Travenol Laboratories, Inc. Peristaltic pump quick disconnect rotor assembly
US4827812A (en) * 1988-09-14 1989-05-09 Markovetz Donald J Pocket screwdriver
US5485769A (en) * 1993-03-24 1996-01-23 Snap-On Incorporated Square drive adapter
DE4312365A1 (de) * 1993-04-16 1994-10-20 Rieter Ingolstadt Spinnerei Offenend-Spinnrotor
DE4342539A1 (de) * 1993-12-14 1995-06-22 Skf Textilmasch Komponenten Schaftloser Spinnrotor einer Offenend-Spinnmaschine
DE9319151U1 (de) * 1993-12-14 1994-03-03 Skf Textilmasch Komponenten Schaftloser Spinnrotor einer Offenend-Spinnmaschine
US5954463A (en) * 1994-05-02 1999-09-21 Jore; Matthew B. Reversible drill driver tool
CZ289599B6 (cs) * 1994-11-29 2002-03-13 Gerhard Wanger Vřeteno pro loľisko mazané plynem rychle se otáčejícího nástroje
DE19544617B4 (de) * 1995-11-30 2008-06-12 Maschinenfabrik Rieter Ag Adapter für Offenend-Spinnvorrichtungen
EP0805224A3 (fr) * 1996-05-04 1997-11-19 Rieter Ingolstadt Spinnereimaschinenbau AG Rotor de filage à bout libre
DE19621190A1 (de) * 1996-05-25 1997-11-27 Rieter Ingolstadt Spinnerei Offenend-Spinnrotor
US6032557A (en) * 1998-09-01 2000-03-07 Anderson; Wayne Driver tool kit with high energy magnetizer/demagnetizer on tool handle(s)
CN2285304Y (zh) * 1996-09-01 1998-07-01 朱寿先 一种钢纺杯
DE19827606A1 (de) 1998-06-20 1999-12-23 Schlafhorst & Co W Lageranordnung für eine Offenend-Spinnvorrichtung
US6250185B1 (en) * 2000-08-04 2001-06-26 Kuo-Hua Tsung Screwdriver
US20020170394A1 (en) * 2001-05-15 2002-11-21 Chiung-Chang Tsai Screwdriver assembly
US6826831B2 (en) * 2002-04-03 2004-12-07 Timothy M. Crawley Method for servicing telecommunication box
DE102004005846A1 (de) * 2004-02-06 2005-08-25 Saurer Gmbh & Co. Kg Rotorschaft eines Spinnrotors
US20060130621A1 (en) * 2004-11-22 2006-06-22 Irwin Industrial Tool Company Multi-tool screwdriver
DE102004062794A1 (de) * 2004-12-20 2006-06-29 Spindelfabrik Süssen Schurr Stahlecker & Grill GmbH Rotorteller für eine Offenend-Spinnvorrichtung
DE102005021920A1 (de) * 2005-05-12 2006-11-16 Saurer Gmbh & Co. Kg Spinnrotor
US7448302B2 (en) * 2007-02-08 2008-11-11 Daniel Huang Adapter coupling device
DE102007007260B4 (de) * 2007-02-14 2022-04-28 Saurer Spinning Solutions Gmbh & Co. Kg Spinnrotor für eine Offenend-Spinnvorrichtung
US8182409B2 (en) * 2008-09-09 2012-05-22 The Western States Machine Company Centrifuge comprising magnetically coupled rotating basket
DE102009048295A1 (de) * 2009-10-05 2010-07-29 Oerlikon Textile Gmbh & Co. Kg Offenend-Spinnrotor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815182A1 (de) 1988-05-04 1989-11-16 Wolfgang Grahamer Spinnrotor
DE19618027A1 (de) 1996-05-04 1997-11-06 Rieter Ingolstadt Spinnerei Offenend-Spinnrotor
EP1156142B1 (fr) 2000-05-16 2004-04-21 Saurer GmbH & Co. KG Rotor de filage à bout libre

Also Published As

Publication number Publication date
DE102012008693A1 (de) 2013-10-31
EP2657379B1 (fr) 2017-02-08
EP2657379A3 (fr) 2014-04-16
CN103374770B (zh) 2018-04-06
BR102013010578A2 (pt) 2015-12-08
CN103374770A (zh) 2013-10-30
US8875482B2 (en) 2014-11-04
US20130283754A1 (en) 2013-10-31
BR102013010578B1 (pt) 2021-04-13

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