EP0808923B1 - Open-end spinning rotor - Google Patents

Open-end spinning rotor Download PDF

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Publication number
EP0808923B1
EP0808923B1 EP97104252A EP97104252A EP0808923B1 EP 0808923 B1 EP0808923 B1 EP 0808923B1 EP 97104252 A EP97104252 A EP 97104252A EP 97104252 A EP97104252 A EP 97104252A EP 0808923 B1 EP0808923 B1 EP 0808923B1
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EP
European Patent Office
Prior art keywords
rotor
open
end spinning
spinning rotor
elastic element
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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
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EP97104252A
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German (de)
French (fr)
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EP0808923A1 (en
Inventor
Erich Bock
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Rieter Ingolstadt Spinnereimaschinenbau AG
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Rieter Ingolstadt Spinnereimaschinenbau AG
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Publication of EP0808923A1 publication Critical patent/EP0808923A1/en
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    • 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 application relates to an open-end spinning rotor according to the Preamble of claim 1.
  • DE-A 38 15 182 is a spinning rotor known, the rotor pot with the carrier part of the rotor shaft via a Coupling arrangement is connected.
  • the Coupling made of two elastic hooks which are used when joining the rotor pot and Engage the rotor shaft in an undercut on the rotor cup. This The undercut is in the form of an oblique surface.
  • the coupling arrangement is in the essentially attached to the rotor plate. It consists of one Locking element formed in a perpendicular to the rotor axis Bore is guided.
  • the Locking elements unlocked by a spring.
  • the rotor pot is replaced by a Magnets held on the carrier part or rotor shaft. If the open-end spinning rotor in Offset rotation, the locking elements emerge from the centrifugal forces Holes in which they are guided out and lock rotor pot and that this receiving carrier part.
  • DE-A 43 42 539 is an open-end spinning rotor known, in which the rotor pot on a supporting and driving it Base body, which is designed as an electric rotor, is fastened in that a kind of screw connection is provided.
  • the coupling Due to the inventive design of the proposed open-end spinning rotor according to claim 1 is by the use of an elastic element from which at least one of the parts of the clip connection is received, that the coupling has the necessary deformability for the assembly of the rotor pot and at the same time ensures that the clip connection ensures a secure hold. At the same time it is achieved that at least part of the clip connection from elastic element itself can be included that the coupling is simple and is easy to manufacture.
  • the elastic element ensures that vibrations that are transmitted to the spinning rotor via the carrier part or Vibrations, which are generated by an imbalance of the rotor cup, that each do not burden other parts of the open-end spinning rotor with vibrations, or that the Vibrations can be damped by the elastic element.
  • the elastic Element also has the advantage that the rotation of the spinning rotor during operation the resulting centrifugal force ensures that the clip connection holds together even more firmly.
  • at least part of the clip connection is elastic
  • the element is encircled in a ring shape so that it is secure with a large area to be attached to the elastic element. This can be done, for example, by gluing or already happen when the elastic element is formed.
  • the elastic element made of a plastic, this can be done easily Wise and inexpensive to manufacture. It is also easy to do this with the support part or to connect with the rotor plate, for example. Also has Plastic the favorable property that it has a particularly good damping effect.
  • part of the clip connection is elastic Element encompasses a ring if it is slotted. This increases its deformability so that the rotor pot can be more easily connected to the carrier part can. It is particularly advantageous if several slots are provided.
  • the part of the clip connection attached to the rotor pot is particularly advantageous as annular groove formed, which can be easily by e.g. machining processing can be introduced into the rotor pot. Training the support part as a hub forms a further advantageous embodiment of the invention. Can be particularly easy then the carrier part e.g. be pressed onto a rotor shaft.
  • the part of the coupling that is not on the rotor pot is manufactured separately and then, for example, on the part of the open-end spinning rotor that is used for storage and ensures the drive to be pressed on.
  • This can e.g. be a rotor shaft or advantageously also the part of an electrical bearing and drive rotor.
  • the carrier part is formed with a stop on which the rotor pot is axially supported. This can ensure that the rotor plate is positioned exactly with the carrier part can be connected. Possible dimensional deviations in the This can compensate for the area of the clip connection. To do this, the rotor pot a counter surface that cooperates with the stop of the support part.
  • An elastomer is particularly suitable as the plastic for the elastic element.
  • An advantageous embodiment of the clip connection is at least a part of it Made of aluminum alloy. This makes it possible in a simple operation manufacture. It is particularly cheap because it is precise and quick to manufacture designed as an injection molded part.
  • In a particularly advantageous development of the invention connects the coupling of the rotor pot and the rotor shaft or some other type Carrier part of the rotor pot in a form-fitting manner in the circumferential direction. Thereby can advantageously be ensured that no relative movement in the circumferential direction between the rotor shaft and the rotor pot. This is especially true when accelerating of the spinning rotor and when braking it to a standstill.
  • the open-end spinning rotor 1 of Figure 1 consists of a rotor pot 11, from a carrier part 12 and a shaft 13, via which the spinning rotor 1 in a known manner, for example, via support disks, and for example, via a Tangential belt is driven.
  • the carrier part 12 consists of a hub 121, which is applied to the rotor shaft 13 by means of a press connection.
  • the hub 121 carries on its outer circumference an elastic element 2. This is with the hub 121, e.g. firmly connected by means of an adhesive connection.
  • the elastic element 2 can be made of plastic or rubber, for example. On his Outer circumference, the elastic element 2 carries part of the coupling 3, via the the rotor pot 11 is connected to the carrier part 12.
  • the clutch 3 is here from the nose 31, which has a circumferential groove 32, which is attached to the rotor pot 11, cooperates.
  • the clutch 3 is designed as a clip connection, so that the attachment of the rotor cup 11 on the support member 12 via simple Putting the two components together is possible.
  • the nose 31 on the elastic element 2 is arranged, the nose 31 when assembling dodge the carrier part and the rotor pot in the direction of the rotor shaft 13, whereby the edge of the circumferential groove 32 can be pushed over the nose 31, so that there is a fluid connection between nose 31 and circumferential groove 32.
  • the nose 31 is part of an annular element 310 which, like the hub 121 is firmly connected to the elastic element 2.
  • the annular element 310 can have one or more slots in the longitudinal direction of the shaft 13, whereby a greater elasticity of the annular element when Joining the rotor pot and support part results.
  • the slots can do that Cut through the annular element 310 completely, as in the lower half of FIG. 1 recognizable by the missing hatching. But the slot can just as well concern the part of the nose 31 of the annular element 310.
  • the ring-shaped Element 310 can be made of steel, for example, while the rotor pot 11 can be made of aluminum, for example. It embraces the elastic Element 2 on its outer circumference.
  • the slot also serves at the same time as an anti-rotation device acting in the circumferential direction between the rotor pot 11 and Rotor shaft 13.
  • the nose 31 does not strike one in the circumferential direction shown stop of the rotor pot 11.
  • the circumferential groove 32 may be interrupted, so that one in the axial direction the running web remains.
  • the same effect, namely the anti-rotation device can also e.g. can be achieved by means of axially extending pins, each partially in the rotor pot 11 and e.g. Engage rotor shaft 13 or hub 121.
  • the open-end spinning rotor 1 When operating the open-end spinning rotor 1, it rotates about its axis of rotation, which is the The axis of rotation of the shaft 13 is set in rotation, with speeds of up to 150,000 revolutions per minute are quite possible. It takes place as a result of Centrifugal forces that act on the clutch 3, an expansion of the annular Elements 310 instead, since the elastic element 2 yields to the centrifugal forces. Thereby becomes a particularly good connection between the nose 31 and the circumferential groove 32 accomplished. At the same time, however, the connection of the annular element offers 310 a connection via the elastic element 2 with the hub 121, which at Standstill of the spinning rotor 1 is easily released.
  • FIG. 2 shows an open-end spinning rotor which is likewise designed in accordance with the invention shown in section and only partially.
  • the elastic element 2 is here attached to a hub-shaped extension 122 of the rotor cup 11.
  • the annular element 310 of the coupling 3 is arranged on the elastic element 2, the annular element 310 of the coupling 3 is arranged.
  • the annular element 310 has a circumferential groove 32 which with a Nose 31 works together.
  • the nose 31 is part in the embodiment of Figure 2 the hub 121.
  • the carrier part 12 has a shaft 13 connected, via which the open-end spinning rotor 1 in a known manner Support discs is stored.
  • the carrier part 12 can also be used with a Bearing and drive part connected, as shown in DE-A 43 42 539.

Description

Die vorliegende Anmeldung betrifft einen Offenend-Spinnrotor gemäß dem Oberbegriff des Patentanspruches 1. Aus der DE-A 38 15 182 ist ein Spinnrotor bekannt, dessen Rotortopf mit dem Trägerteil der Rotorwelle über eine Kupplungsanordnung verbunden ist. Bei einer Ausführungsform besteht die Kupplung aus zwei elastischen Haken, die beim Zusammenfügen von Rotortopf und Rotorwelle in eine Hinterschneidung am Rotortopf eingreifen. Diese Hinterschneidung ist in Form einer schrägen Fläche ausgebildet. Bei Betrieb des Spinnrotors drücken die Haken infolge der Fliehkraft auf diese schrägen Flächen, wodurch der Topf des Spinnrotors in Richtung auf Trägerteil und damit Rotorschaft gezogen wird. Bei einer anderen Ausführungsform ist die Kupplungsanordnung im wesentlichen am Rotorteller angebracht. Sie besteht aus einem Verriegelungselement, das in einer senkrecht zur Rotorachse ausgebildeten Bohrung geführt ist. Im Stillstand des Offenend-Spinnrotors werden die Verriegelungselemente durch eine Feder entriegelt. Der Rotortopf wird durch einen Magneten am Trägerteil bzw. Rotorschaft gehalten. Wird der Offenend-Spinnrotor in Drehung versetzt, treten die Verriegelungselemente infolge der Fliehkräfte aus den Bohrungen, in denen sie geführt werden, heraus und verriegeln Rotortopf und das diesen aufnehmende Trägerteil. Aus der DE-A 43 42 539 ist ein Offenend-Spinnrotor bekannt, bei dem der Rotortopf auf einem ihn tragenden und antreibenden Grundkörper, der als elektrischer Rotor ausgebildet ist, dadurch befestigt ist, daß eine Art Schraubverbindung vorgesehen ist.The present application relates to an open-end spinning rotor according to the Preamble of claim 1. From DE-A 38 15 182 is a spinning rotor known, the rotor pot with the carrier part of the rotor shaft via a Coupling arrangement is connected. In one embodiment, the Coupling made of two elastic hooks which are used when joining the rotor pot and Engage the rotor shaft in an undercut on the rotor cup. This The undercut is in the form of an oblique surface. When operating the Spinning rotor presses the hooks on these inclined surfaces due to the centrifugal force, whereby the pot of the spinning rotor in the direction of the carrier part and thus the rotor shaft is pulled. In another embodiment, the coupling arrangement is in the essentially attached to the rotor plate. It consists of one Locking element formed in a perpendicular to the rotor axis Bore is guided. When the open-end spinning rotor is at a standstill, the Locking elements unlocked by a spring. The rotor pot is replaced by a Magnets held on the carrier part or rotor shaft. If the open-end spinning rotor in Offset rotation, the locking elements emerge from the centrifugal forces Holes in which they are guided out and lock rotor pot and that this receiving carrier part. From DE-A 43 42 539 is an open-end spinning rotor known, in which the rotor pot on a supporting and driving it Base body, which is designed as an electric rotor, is fastened in that a kind of screw connection is provided.

Diese Ausführungsformen von Offenend-Spinnrotoren haben den Nachteil, daß die Verbindung zwischen Rotortopf und einem diesen aufnehmenden Trägerteil aufwendig und kostenintensiv ist. Aufgabe der vorliegenden Anmeldung ist es, die Nachteile des Standes der Technik zu vermeiden und einen Offenend-Spinnrotor vorzuschlagen, der einfacher im Aufbau und kostengünstiger herzustellen ist und dabei gleichzeitig eine sichere und einfache Montage des Rotortopfes gewährleistet. Die vorliegende Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst.These embodiments of open-end spinning rotors have the disadvantage that the Connection between the rotor pot and a support part receiving it is complex and costly. The object of the present application is to Avoid disadvantages of the prior art and an open-end spinning rotor to propose that is simpler in construction and less expensive to manufacture, and thereby ensuring a safe and simple assembly of the rotor pot. The present object is achieved by the features of claim 1.

Durch die erfindungsgemäße Ausgestaltung des vorgeschlagenen Offenend-Spinnrotors gemäß Anspruch 1 wird durch die Verwendung eines elastischen Elements von dem wenigstens eines der Teile der Klippsverbindung aufgenommen ist, erreicht, daß die Kupplung die nötige Verformbarkeit für die Montage des Rotortopfes besitzt und gleichzeitig erreicht, daß die Klippsverbindung einen sicheren Halt gewährleistet. Gleichzeitig wird dadurch erreicht, daß wenigstens ein Teil der Klippsverbindung vom elastischen Element selbst aufgenommen werden kann, daß die Kupplung einfach ausgebildet und ist leicht herzustellen ist. Das elastische Element gewährleistet gleichzeitig, daß Schwingungen, die über das Trägerteil auf den Spinnrotor übertragen oder Schwingungen, die durch eine Unwucht des Rotortopfes erzeugt werden, das jeweils andere Teil des Offenend-Spinnrotors nicht mit Schwingungen belasten, bzw. daß die Schwingungen durch das elastische Element gedämpft werden können. Das elastische Element hat darüber hinaus den Vorteil, daß durch die Drehung des Spinnrotors im Betrieb die entstehende Fliehkraft dafür sorgt, daß die Klippsverbindung noch fester zusammenhält. Dadurch, daß wenigstens ein Teil der Klippsverbindung das elastische Element ringförmig umgreift, wird erreicht, daß dieses sicher, mit einer großen Fläche auf dem elastischen Element zu befestigen ist. Dies kann beispielsweise durch Kleben oder bereits bei der Ausformung des elastischen Elements geschehen. Durch die Ausgestaltung des elastischen Elements aus einem Kunststoff, kann dieses auf einfache Weise und kostengünstig hergestellt werden. Auch ist es einfach, dieses mit dem Trägerteil oder beispielsweise auch mit dem Rotorteller zu verbinden. Außerdem hat Kunststoff die günstige Eigenschaft, daß er besonders gut dämpfend wirkt.Due to the inventive design of the proposed open-end spinning rotor according to claim 1 is by the use of an elastic element from which at least one of the parts of the clip connection is received, that the coupling has the necessary deformability for the assembly of the rotor pot and at the same time ensures that the clip connection ensures a secure hold. At the same time it is achieved that at least part of the clip connection from elastic element itself can be included that the coupling is simple and is easy to manufacture. At the same time, the elastic element ensures that vibrations that are transmitted to the spinning rotor via the carrier part or Vibrations, which are generated by an imbalance of the rotor cup, that each do not burden other parts of the open-end spinning rotor with vibrations, or that the Vibrations can be damped by the elastic element. The elastic Element also has the advantage that the rotation of the spinning rotor during operation the resulting centrifugal force ensures that the clip connection holds together even more firmly. In that at least part of the clip connection is elastic The element is encircled in a ring shape so that it is secure with a large area to be attached to the elastic element. This can be done, for example, by gluing or already happen when the elastic element is formed. By design of the elastic element made of a plastic, this can be done easily Wise and inexpensive to manufacture. It is also easy to do this with the support part or to connect with the rotor plate, for example. Also has Plastic the favorable property that it has a particularly good damping effect.

Besonders vorteilhaft ist es insbesondere, wenn ein Teil der Klippsverbindung das elastische Element ringförmig umgreift, wenn dieses geschlitzt ist. Dadurch erhöht sich seine Verformbarkeit, damit der Rotortopf mit dem Trägerteil leichter verbunden werden kann. Besonders vorteilhaft ist es dabei, wenn mehrere Schlitze vorgesehen werden. Das am Rotortopf angebrachte Teil der Klippsverbindung ist besonders vorteilhaft als ringförmige Nute ausgebildet, die auf einfache Weise durch z.B. spandende Bearbeitung in den Rotortopf eingebracht werden kann. Die Ausbildung das Trägerteils als Nabe bildet eine weitere vorteilhafte Ausgestaltung der Erfindung. Besonders einfach kann dann das Trägerteil z.B. auf einen Rotorschaft aufgepreßt werden. Dadurch kann vorteilhaft der Teil der Kupplung, der sich nicht am Rotortopf befindet, getrennt hergestellt werden und dann beispielsweise auf den Teil des Offenend-Spinnrotors, der für die Lagerung und den Antrieb sorgt, aufgepreßt werden. Dies kann z.B. ein Rotorschaft sein oder vorteilhaft auch der Teil eines elektrischen Lager- und Antriebsrotors. Vorteilhaft wird das Trägerteil mit einem Anschlag ausgebildet, an dem sich der Rotortopf axial abstützt. Dadurch kann dafür gesorgt werden, daß der Rotorteller genau positioniert mit dem Trägerteil verbunden werden kann. Eventuell auftretende Maßabweichungen im Bereich der Klippsverbindung können dadurch kompensiert werden. Dazu hat der Rotortopf eine Gegenfläche, die mit dem Anschlag des Trägerteils zusammenarbeitet.It is particularly advantageous if part of the clip connection is elastic Element encompasses a ring if it is slotted. This increases its deformability so that the rotor pot can be more easily connected to the carrier part can. It is particularly advantageous if several slots are provided. The part of the clip connection attached to the rotor pot is particularly advantageous as annular groove formed, which can be easily by e.g. machining processing can be introduced into the rotor pot. Training the support part as a hub forms a further advantageous embodiment of the invention. Can be particularly easy then the carrier part e.g. be pressed onto a rotor shaft. This can be advantageous the part of the coupling that is not on the rotor pot is manufactured separately and then, for example, on the part of the open-end spinning rotor that is used for storage and ensures the drive to be pressed on. This can e.g. be a rotor shaft or advantageously also the part of an electrical bearing and drive rotor. Advantageous the carrier part is formed with a stop on which the rotor pot is axially supported. This can ensure that the rotor plate is positioned exactly with the carrier part can be connected. Possible dimensional deviations in the This can compensate for the area of the clip connection. To do this, the rotor pot a counter surface that cooperates with the stop of the support part.

Als Kunststoff für das elastische Element eignet sich besonders ein Elastomer. In weiterer vorteilhafter Ausgestaltung der Klippsverbindung ist wenigstens ein Teil davon aus einer Aluminiumlegierung hergestellt. Dadurch ist es möglich es in einem einfachen Arbeitsgang herzustellen. Besonders günstig, weil formgenau und schnell herzustellen, ist es als Spritzgußteil ausgebildet. Bei einer besonders vorteilhaften Weiterbildung der Erfindung verbindet die Kupplung Rotortopf und Rotorschaft oder ein anderweitig ausgestaltetes Trägerteil des Rotortopfes in Umfangsrichtung formschlüssig miteinander. Dadurch kann vorteilhaft sichergestellt werden, daß keine Relativbewegung in Umfangsrichtung zwischen Rotorschaft und Rotortopf stattfindet. Dies ist insbesondere beim Beschleunigen des Spinnrotors und bei dessen Abbremsen zum Stillstand wichtig.An elastomer is particularly suitable as the plastic for the elastic element. In another An advantageous embodiment of the clip connection is at least a part of it Made of aluminum alloy. This makes it possible in a simple operation manufacture. It is particularly cheap because it is precise and quick to manufacture designed as an injection molded part. In a particularly advantageous development of the invention connects the coupling of the rotor pot and the rotor shaft or some other type Carrier part of the rotor pot in a form-fitting manner in the circumferential direction. Thereby can advantageously be ensured that no relative movement in the circumferential direction between the rotor shaft and the rotor pot. This is especially true when accelerating of the spinning rotor and when braking it to a standstill.

Im folgenden wird die Erfindung anhand von zeichnerischen Darstellungen beschrieben.The invention is described below with the aid of graphic representations.

Es zeigen:

Figur 1
einen erfindungsgemäß ausgestalteten Offenend-Spinnrotor im Schnitt;
Figur 2
einen erfindungsgemäß ausgebildeten Offenend-Spinnrotor im Schnitt, in teilweiser Darstellung.
Show it:
Figure 1
an open-end spinning rotor designed according to the invention in section;
Figure 2
an open-end spinning rotor designed according to the invention in section, in partial representation.

Der Offenend-Spinnrotor 1 von Figur 1 besteht aus einem Rotortopf 11, aus einem Trägerteil 12 und einem Schaft 13, über den der Spinnrotor 1 in bekannter Weise, beispielsweise über Stützscheiben, gelagert und beispielsweise über einen Tangentialriemen angetrieben wird. Das Trägerteil 12 besteht aus einer Nabe 121, die auf den Rotorschaft 13 mittels einer Preßverbindung aufgebracht ist. Die Nabe 121 trägt an ihrem Außenumfang ein elastisches Element 2. Dieses ist mit der Nabe 121, z.B. mittels einer Klebeverbindung, fest verbunden. Das elastische Element 2 kann beispielsweise aus Kunststoff oder aus Gummi hergestellt sein. An seinem Außenumfang trägt das elastische Element 2 einen Teil der Kupplung 3, über die der Rotortopf 11 mit dem Trägerteil 12 verbunden ist. Die Kupplung 3 besteht hier aus der Nase 31, die mit einer Umfangsnut 32, die am Rotortopf 11 angebracht ist, zusammenarbeitet. Die Kupplung 3 ist als eine Klippsverbindung ausgebildet, so daß die Befestigung des Rotortopfes 11 am Trägerteil 12 über einfaches Zusammenstecken der beiden Bauteile möglich ist. Dadurch, daß die Nase 31 auf dem elastischen Element 2 angeordnet ist, kann die Nase 31 beim Zusammenfügen von Trägerteil und Rotortopf in Richtung auf den Rotorschaft 13 ausweichen, wodurch der Rand der Umfangsnut 32 über die Nase 31 geschoben werden kann, so daß sich eine formflüssige Verbindung zwischen Nase 31 und Umfangsnut 32 ergibt. Die Nase 31 ist Teil eines ringförmigen Elements 310, das ebenso wie die Nabe 121 mit dem elastischen Element 2 fest verbunden ist. Das ringförmige Element 310 kann eine oder mehrere Schlitze in Längsrichtung des Schaftes 13 besitzen, wodurch sich eine größere Elastizität des ringförmigen Elements beim Zusammenfügen von Rotortopf und Trägerteil ergibt. Die Schlitze können dabei das ringförmige Element 310 ganz durchtrennen, wie in der unteren Hälfte von Figur 1 an der fehlenden Schraffur zu erkennen. Der Schlitz kann aber ebensogut auch nur den Teil der Nase 31 des ringförmigen Elements 310 betreffen. Das ringförmige Element 310 kann beispielsweise aus Stahl sein, während der Rotortopf 11 beispielsweise aus Aluminium hergestellt sein kann. Es umgreift das elastische Element 2 an dessen Außenumfang. Der Schlitz dient darüber hinaus gleichzeitig als in Umfangsrichtung wirkende Verdrehsicherung zwischen Rotortopf 11 und Rotorschaft 13. Dazu schlägt die Nase 31 in Umfangsrichtung an einen nicht dargestellten Anschlag des Rotortopfes 11 an. Um diesen Anschlag zu bilden, kann beispielsweise die Umfangsnut 32 unterbrochen sein, so daß ein in axialer Richtung verlaufender Steg stehenbleibt. Die gleiche Wirkung, nämlich die Verdrehsicherung, kann auch z.B. mittels axial verlaufender Stifte erreicht werden, die jeweils teilweise in den Rotortopf 11 und z.B. Rotorschaft 13 oder Nabe 121 eingreifen. The open-end spinning rotor 1 of Figure 1 consists of a rotor pot 11, from a carrier part 12 and a shaft 13, via which the spinning rotor 1 in a known manner, for example, via support disks, and for example, via a Tangential belt is driven. The carrier part 12 consists of a hub 121, which is applied to the rotor shaft 13 by means of a press connection. The hub 121 carries on its outer circumference an elastic element 2. This is with the hub 121, e.g. firmly connected by means of an adhesive connection. The elastic element 2 can be made of plastic or rubber, for example. On his Outer circumference, the elastic element 2 carries part of the coupling 3, via the the rotor pot 11 is connected to the carrier part 12. The clutch 3 is here from the nose 31, which has a circumferential groove 32, which is attached to the rotor pot 11, cooperates. The clutch 3 is designed as a clip connection, so that the attachment of the rotor cup 11 on the support member 12 via simple Putting the two components together is possible. In that the nose 31 on the elastic element 2 is arranged, the nose 31 when assembling dodge the carrier part and the rotor pot in the direction of the rotor shaft 13, whereby the edge of the circumferential groove 32 can be pushed over the nose 31, so that there is a fluid connection between nose 31 and circumferential groove 32. The nose 31 is part of an annular element 310 which, like the hub 121 is firmly connected to the elastic element 2. The annular element 310 can have one or more slots in the longitudinal direction of the shaft 13, whereby a greater elasticity of the annular element when Joining the rotor pot and support part results. The slots can do that Cut through the annular element 310 completely, as in the lower half of FIG. 1 recognizable by the missing hatching. But the slot can just as well concern the part of the nose 31 of the annular element 310. The ring-shaped Element 310 can be made of steel, for example, while the rotor pot 11 can be made of aluminum, for example. It embraces the elastic Element 2 on its outer circumference. The slot also serves at the same time as an anti-rotation device acting in the circumferential direction between the rotor pot 11 and Rotor shaft 13. For this purpose, the nose 31 does not strike one in the circumferential direction shown stop of the rotor pot 11. To make this stop, can For example, the circumferential groove 32 may be interrupted, so that one in the axial direction the running web remains. The same effect, namely the anti-rotation device, can also e.g. can be achieved by means of axially extending pins, each partially in the rotor pot 11 and e.g. Engage rotor shaft 13 or hub 121.

Beim Betrieb des Offenend-Spinnrotors 1 wird dieser um seine Drehachse, die die Drehachse des Schaftes 13 ist, in Drehung versetzt, wobei Drehzahlen bis zu 150.000 Umdrehungen pro Minute durchaus möglich sind. Dabei findet infolge der Fliehkräfte, die auf die Kupplung 3 wirken, ein Ausdehnen des ringförmigen Elements 310 statt, da das elastische Element 2 den Fliehkräften nachgibt. Dadurch wird eine besonders gute Verbindung zwischen der Nase 31 mit der Umfangsnut 32 bewerkstelligt. Gleichzeitig bietet aber die Verbindung von ringförmigem Element 310 über das elastische Element 2 mit der Nabe 121 eine Verbindung, die beim Stillstand des Spinnrotors 1 leicht lösbar ist.When operating the open-end spinning rotor 1, it rotates about its axis of rotation, which is the The axis of rotation of the shaft 13 is set in rotation, with speeds of up to 150,000 revolutions per minute are quite possible. It takes place as a result of Centrifugal forces that act on the clutch 3, an expansion of the annular Elements 310 instead, since the elastic element 2 yields to the centrifugal forces. Thereby becomes a particularly good connection between the nose 31 and the circumferential groove 32 accomplished. At the same time, however, the connection of the annular element offers 310 a connection via the elastic element 2 with the hub 121, which at Standstill of the spinning rotor 1 is easily released.

Figur 2 zeigt einen ebenfalls gemäß der Erfindung ausgebildeten Offenend-Spinnrotor im Schnitt und nur teilweise dargestellt. Das elastische Element 2 ist hier auf einem nabenförmigen Ansatz 122 des Rotortopfes 11 befestigt. Auf dem elastischen Element 2 ist das ringförmige Element 310 der Kupplung 3 angeordnet. Bei Figur 2 besitzt das ringförmige Element 310 eine Umfangsnut 32, die mit einer Nase 31 zusammenarbeitet. Die Nase 31 ist im Ausführungsbeispiel von Figur 2 Teil der Nabe 121. Das Trägerteil 12 ist ebenso wie bei Figur 1 mit einem Schaft 13 verbunden, über das der Offenend-Spinnrotor 1 in bekannter Weise über Stützscheiben gelagert ist. Ebensogut kann das Trägerteil 12 jedoch auch mit einem Lager- und Antriebsteil verbunden sein, wie es in der DE-A 43 42 539 gezeigt ist.FIG. 2 shows an open-end spinning rotor which is likewise designed in accordance with the invention shown in section and only partially. The elastic element 2 is here attached to a hub-shaped extension 122 of the rotor cup 11. On the elastic element 2, the annular element 310 of the coupling 3 is arranged. In Figure 2, the annular element 310 has a circumferential groove 32 which with a Nose 31 works together. The nose 31 is part in the embodiment of Figure 2 the hub 121. As in FIG. 1, the carrier part 12 has a shaft 13 connected, via which the open-end spinning rotor 1 in a known manner Support discs is stored. However, the carrier part 12 can also be used with a Bearing and drive part connected, as shown in DE-A 43 42 539.

Claims (17)

  1. Open-end spinning rotor consisting of a rotor pot and a supporting part (12) receiving it via which the rotor pot is supported and driven, whereby the rotor pot and the supporting part are connected to each other via a coupling (3) which is a snap-on connection with an elastic element (2) and whereby part of the clip connection is received by the rotor pot (11) and part by the supporting part (12), characterized in that a ring-shaped element is provided gripping round and being connected firmly to the elastic element (2) and that said elastic element (2) is firmly connected with the hub (121) or fixed to a hub-shaped attachment (121).
  2. Open-end spinning rotor as in claim 1, characterized in that the elastic element (2) is attenuating.
  3. Open-end spinning rotor as in claim 1 or 2, characterized in that the part of the snap-on connection (3) associated with the supporting part (12) surrounds the elastic element (2) in ring form.
  4. Open-end spinning rotor as in claim 3, characterized in that the part of the snap-on connection which surrounds the elastic element (2) in ring form is slotted to increase its deformability.
  5. Open-end spinning rotor as in claim 4, characterized in that the part surrounding the elastic element (2) in ring form is slotted with multiple slits.
  6. Open-end spinning rotor as in one or several of the claims 1 to 5, characterized in that the rotor pot (11) is provided with a circumferential groove (32) which is part of the snap-on connection.
  7. Open-end spinning rotor as in one or several of the claims 1 to 6, characterized in that the supporting part (12) is made in form of a hub (121).
  8. Open-end spinning rotor as in claim 7, characterized in that the hub (121) is press-fitted on a rotor shaft (13).
  9. Open-end spinning rotor as in claim 7 or 8, characterized in that the elastic element (2) is firmly connected with the hub (121).
  10. Open-end spinning rotor as in one or several of the claims 1 to 8, characterized in that in that the supporting part (12) is part of an electric bearing and driving rotor.
  11. Open-end spinning rotor as in one or several of the claims 1 to 10, characterized in that the supporting part (12) is provided with a stop (4) for the rotor pot.
  12. Open-end spinning rotor as in claim 11, characterized in that the stop (4) is constituted by the elastic element (2).
  13. Open-end spinning rotor as in claim 11 or 12, characterized in that the rotor pot (11) is provided with an opposing surface which interacts with the stop (4) of the supporting part (12).
  14. Open-end spinning rotor as in one or several of the claims 1 to 13, characterized in that in that the elastic element (2) is made of elastomer.
  15. Open-end spinning rotor as in one or several of the claims 1 to 14, characterized in that in that at least part of the snap-on connection is made of an aluminum alloy.
  16. Open-end spinning rotor as in one or several of the claims 1 to 15, characterized in that at least part of the snap-on connection consists of an extruded part.
  17. Open-end spinning rotor as in one or several of the claims 1 to 16, characterized in that the coupling (3) connects the rotor shaft (11) and the supporting part (12) interlockingly in circumferential direction.
EP97104252A 1996-05-25 1997-03-13 Open-end spinning rotor Expired - Lifetime EP0808923B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19621190 1996-05-25
DE19621190A DE19621190A1 (en) 1996-05-25 1996-05-25 Open-end spinning rotor

Publications (2)

Publication Number Publication Date
EP0808923A1 EP0808923A1 (en) 1997-11-26
EP0808923B1 true EP0808923B1 (en) 2002-09-04

Family

ID=7795365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104252A Expired - Lifetime EP0808923B1 (en) 1996-05-25 1997-03-13 Open-end spinning rotor

Country Status (5)

Country Link
US (1) US5802838A (en)
EP (1) EP0808923B1 (en)
CZ (1) CZ289453B6 (en)
DE (2) DE19621190A1 (en)
SK (1) SK56297A3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10024020A1 (en) * 2000-05-16 2001-11-22 Schlafhorst & Co W Open-end spinning rotor
DE10326849A1 (en) * 2003-06-14 2004-12-30 Saurer Gmbh & Co. Kg Spinning rotor for an open-end rotor spinning device
DE102005021920A1 (en) * 2005-05-12 2006-11-16 Saurer Gmbh & Co. Kg spinning rotor
DE202005016198U1 (en) * 2005-10-15 2005-12-29 Saurer Gmbh & Co. Kg Bobbin flange for bobbin with hysteresis brake, having rotating bush with snap fitting elements for connection to hysteresis disk, allowing easy detachment for maintenance
DE102007007260B4 (en) * 2007-02-14 2022-04-28 Saurer Spinning Solutions Gmbh & Co. Kg Spinning rotor for an open-end spinning device
DE102009048295A1 (en) 2009-10-05 2010-07-29 Oerlikon Textile Gmbh & Co. Kg Open-end spinning rotor for use in textile industry, has spring element that is stretched during insertion of stub into borehole such that element transfers torque from shaft to cup, where element is detachably connected with cup and shaft
DE102012008693A1 (en) * 2012-04-28 2013-10-31 Oerlikon Textile Gmbh & Co. Kg Open-end spinning rotor
DE102012022092A1 (en) 2012-11-10 2014-05-15 Saurer Germany Gmbh & Co. Kg Open-end spinning rotor
DE102013108199A1 (en) * 2013-07-31 2015-02-05 Maschinenfabrik Rieter Ag Open-end spinning rotor with a rotor cup, a rotor shaft and a coupling device
DE102016122595A1 (en) * 2016-11-23 2018-05-24 Maschinenfabrik Rieter Ag Rotor cup and open-end spinning rotor with a rotor cup
DE102017129152A1 (en) * 2017-12-07 2019-06-13 Maschinenfabrik Rieter Ag Opening roller for an open-end spinning device and open-end spinning device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU311541A1 (en) * 1969-08-18 1979-08-30 Центральный научно-исследовательский институт хлопчатобумажной промышленности Device for clamping a twisted fibrous yarn in an open-end spinning machine
DE2639763A1 (en) * 1976-09-03 1978-03-16 Fritz Stahlecker Open=end spinning rotor shaft mounting - has ring magnets to counteract any axial shaft movement
CS190771B1 (en) * 1976-10-19 1979-06-29 Josef Havel Spinning unit of open-end rotor spinning machines
DE2939326C2 (en) * 1979-09-28 1982-05-19 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Open-end spinning rotor
DE3212785C3 (en) * 1982-04-06 1987-08-20 Schubert & Salzer Maschinen OPEN-END SPIDER ROTOR
DE3815182A1 (en) * 1988-05-04 1989-11-16 Wolfgang Grahamer Spinning rotor
DE4009374A1 (en) * 1990-03-23 1991-09-26 Schlafhorst & Co W Open=end spinning rotor shaft - has axial elasticity at the free end towards the step bearing to dampen oscillation
DE4020518A1 (en) * 1990-06-28 1992-01-02 Schubert & Salzer Maschinen OPEN-END SPIDER ROTOR
DE4312365A1 (en) * 1993-04-16 1994-10-20 Rieter Ingolstadt Spinnerei Open-end spinning rotor
DE9319151U1 (en) * 1993-12-14 1994-03-03 Skf Textilmasch Komponenten Shankless spinning rotor of an open-end spinning machine
DE4342539A1 (en) * 1993-12-14 1995-06-22 Skf Textilmasch Komponenten Shaftless rotor for open end spinning
DE4344012A1 (en) * 1993-12-23 1995-06-29 Rieter Ingolstadt Spinnerei Open end spinning rotor
CZ289599B6 (en) * 1994-11-29 2002-03-13 Gerhard Wanger Spindle for gas lubricated bearing of a rapidly rotating tool

Also Published As

Publication number Publication date
EP0808923A1 (en) 1997-11-26
CZ289453B6 (en) 2002-01-16
DE19621190A1 (en) 1997-11-27
SK56297A3 (en) 1997-12-10
US5802838A (en) 1998-09-08
DE59708104D1 (en) 2002-10-10
CZ117097A3 (en) 1997-12-17

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