EP1895033B1 - Twisting head rotor - Google Patents

Twisting head rotor Download PDF

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Publication number
EP1895033B1
EP1895033B1 EP20070014370 EP07014370A EP1895033B1 EP 1895033 B1 EP1895033 B1 EP 1895033B1 EP 20070014370 EP20070014370 EP 20070014370 EP 07014370 A EP07014370 A EP 07014370A EP 1895033 B1 EP1895033 B1 EP 1895033B1
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EP
European Patent Office
Prior art keywords
twisting head
head rotor
bore
lubricant
bearing bores
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 - Fee Related
Application number
EP20070014370
Other languages
German (de)
French (fr)
Other versions
EP1895033A3 (en
EP1895033A2 (en
Inventor
Christian Felber
Dieter Leuthold
Wolfgang Schöffl
Bernhard Wolny
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
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Publication date
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Publication of EP1895033A2 publication Critical patent/EP1895033A2/en
Publication of EP1895033A3 publication Critical patent/EP1895033A3/en
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Publication of EP1895033B1 publication Critical patent/EP1895033B1/en
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Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28Doubled, plied, or cabled threads
    • D02G3/285Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/02Spinning or twisting arrangements for imparting permanent twist
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/02Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04Spindles
    • D01H7/20Lubricating arrangements

Definitions

  • the invention relates to a twisting head rotor for a cabling machine according to the preamble of claim 1.
  • a first thread is withdrawn from a first stationary feed bobbin arranged above a hollow spindle, while a second thread withdrawn from a second feed bobbin is introduced centrally from below into the hollow spindle.
  • the second thread exits laterally from the hollow spindle and rotates in a yarn balloon around the first feed bobbin before it is brought together by a above the hollow spindle freely rotatably mounted Zwirnkopfrotor with the first thread.
  • the Zwirnkopfrotor has two pairs of balancing rollers, which are each arranged on a common axis of rotation. The two axes of rotation are arranged in mutually parallel bearing bores which extend transversely to the longitudinal axis of the Zwirnkopfrotors.
  • the bearing of the two axes of rotation takes place in two juxtaposed arranged in the bearing bores bearings.
  • the rolling bearing pairs are mutually spaced by a arranged in a circumferential groove in the interior of the bearing bores spacer.
  • relubricated or life-lubricated bearings are used for the bearings of the axes of rotation .
  • the service life of the roller bearings of the twisting head rotor depends largely on their lubrication condition. Due to the centrifugal forces acting on the rolling bearings due to the rotation of the twisting head rotor, the grease used as the lubricant is pressed outwards, resulting in deficient lubrication due to the oil separation from the bearing Adjusting lubricant. This requires replacement of rolling bearings or regular relubrication.
  • the use of lifetime-lubricated bearings also eliminates due to the incoming deficient lubrication, caused by the centrifugal force, from. Again, the centrifugal force leads to a separation of the oil contained in the lubricant, which then emerges from the rolling bearings. The part of the lubricant remaining in the rolling bearings is not suitable for ensuring adequate lubrication during operation of the twisting head rotor. In addition, these bearings are no longer relubricated due to the design.
  • the DE 202 09 091 U1 describes a Zwirnkopfrotor of the aforementioned type, which is designed to simplify the relubrication of the rolling bearings such that in each case a compensating roller pair is mounted together with the rolling bearings and the axis of rotation in a roller cartridge.
  • the roller cartridge can be removed from the bearing bore of the twisting head rotor in order to relubricate the rolling bearings by means of a specially developed lubricating device.
  • the respectively disassembled roller cartridge is inserted into the lubricating device, to which a lubricant press is connected.
  • this solution has proved to be less practicable, since the cost of removing and installing the roller cartridge has only slightly reduced compared to the complete replacement of the roller bearings, if they must be replaced due to the lack of lubrication.
  • the invention is based on the object to provide a Zwirnkopfrotor that allows easy re-lubrication of rolling bearings without additional installation work.
  • one of the two bearing bores is connected to a connection device for supplying a lubricant and the two bearing bores are connected to each other by a through hole.
  • connection device can be connected via a connecting bore with one of the bearing bores.
  • the through-hole and the connecting bore may be substantially coaxial with the axis of rotation, which may be manufacturing aspects of the Zwirnkopfrotors is advantageous.
  • connection device can be arranged in the region of the axis of rotation of the twisting head rotor. This allows the connection of a Schmierstoffzu GmbHvortechnisch such as a lubricant press above one of the two bearing bores.
  • connection device can be arranged coaxially to one of the axes of rotation.
  • the supply of lubricant through the axis of rotation of one of the bearing bores is perpendicular to the axis of rotation of the Zwirnkopfrotors, which may be characterized by a better accessibility of the connection device.
  • the spacer means may be formed as spacers, which are each arranged in a radially circumferential groove of the bearing bores.
  • a circumferential channel-shaped recess may be introduced, which has a smaller cross section than the groove, which prevents the touching of the bottom of the recess by the respective spacer ring.
  • the present invention carried out Zwirnkopfrotor allows almost simultaneous supply of a lubricant to both pairs of bearings by the introduced by a connection device in a bearing bore lubricant spreads through the channel-like recess behind the spacer ring through the through hole in the other bearing bore.
  • a homogenization of the lubricant supply is achieved by the spacer rings.
  • the spacer ring can be interrupted in the circumferential direction by a ring segment in order to release the through-hole at least in sections for supplying the lubricant to the roller bearings.
  • the flow of lubricant is improved by the one bearing bore in the direction of the other bearing bore.
  • the mobility of the spacer ring may be limited by an elevation disposed adjacent the through-hole and disposed in the groove.
  • the sectionally extending in the circumferential direction of the groove survey interrupts the recess in the groove partially, whereby it is achieved that the spacer rests on its positioning with one of its ends on the survey. If the through hole is covered by the one end of the spacer ring, the spacer ring can be returned due to the build-up lubricant pressure in the recess in its ideal position, whereby the through hole is released again.
  • Fig. 4 an enlarged detail sectional view X according to Fig. 3 ,
  • FIG. 1 shows a twisting head rotor 1 as shown in the DE 197 00 222 C1 is described, the disclosure of which is made the content of the present description.
  • the Zwirnkopfrotor 1 is provided with two superposed, perpendicular to the rotation axis 14 of the Zwirnkopfrotors 1 bearing bores 2a, 2b.
  • the bearing bores 2a, 2b are offset relative to the rotation axis 14 of the twisting-end rotor 1, respectively, to the rear, as in FIG Fig. 1 shown.
  • the bearing bores 2a, 2b serve to receive a respective rotation axis 3a, 3b, which are mounted in the respective bearing bores 2a, 2b by means of two roller bearings 4.
  • two balancing rollers 5 are arranged opposite one another at the end, which are spaced apart from each other by the twisting-head rotor 1.
  • the bearing bore 2a, 2b is divided by a coaxial with the longitudinal axis of the bearing bore 2a, 2b circumferential groove 6 into two sections, as in Fig. 2 shown, which serve the arrangement of the two rolling bearings 4 in the respective bearing bore 2a, 2b.
  • a spacer ring 7 is arranged, which mutually spaced the rolling bearing 4 and secures against axial displacement.
  • the groove 6 additionally has a radially encircling, preferably channel-shaped recess 8 at its bottom, which has a smaller cross-section than the groove 6.
  • the cross section of the recess 8 is chosen such that the touching of the bottom of the recess 8 is prevented by the located in the groove 6 spacer ring 7.
  • the bearing bores 2 a, 2 b are connected to one another by a through bore 9 extending coaxially to the axis of rotation 14 of the twisting-end rotor 1.
  • the upper bearing bore 2a is in turn connected via a connecting bore 10 with a connection device 11, such as a grease nipple, for supplying a lubricant.
  • the spacers 7 are designed as retaining rings, which are interrupted in the circumferential direction by an annular gap.
  • a survey 12 is provided, which extends in sections in the circumferential direction of the groove 6.
  • the spacer ring 7 rests with one of its two ends on the elevation 12, that is, the elevation 12 is located between the annular gap.
  • the spacer ring 7 is positioned relative to the through-hole 9 such that the opening of the through-hole 9 is generally largely exposed to ensure the passage of the lubricant.
  • the supply of the lubricant is preferably carried out by a connectable to the connection device 11 lubricant press.
  • the lubricant passes through the connecting hole 10 in the recess 8 behind the spacer ring 7 of the upper bearing bore 2a.
  • the recess 8 channels the lubricant From there, the lubricant between the interruption of the spacer ring 7 pushes outwardly towards the two rolling bearings 4.
  • the lubricant is pressed through the through hole 9 between the bearing holes 2a, 2b in the lower bearing bore 2b and enters There to also extend in the direction of the bearings 4 of the lower bearing bore 2b.
  • the further distribution of the lubricant is effected by the centrifugal force acting during operation, whereby the relubrication only from the interior of the twisting head rotor 1 makes sense.
  • the rolling bearings 4 are sealed on one side on their compensation rollers 5 side facing.
  • a lubricant guide channel 15 extends coaxially to the longitudinal axis of the rotation axis 3a starting from the connection device 11 into the region of the through-hole 9 between the bearing bores 2a, 2b, as in FIG Fig. 4 shown.
  • the relubrication of the rolling bearing 4 can be carried out from the side of the Zwirnkopfrotors 1 ago.
  • the lubricant exits radially from the Schmierstoffleitichkanal 15, and is arranged on a arranged between the bearings 4 disc 13 of the Through hole 9 and the annular gap of the spacer ring 7 of the bearing bore 2a supplied.
  • the lubricant enters via the through hole 9 in the annular gap of the spacer ring 7 of the bearing bore 2b.
  • the lubricant emerging from the annular gaps of the spacer rings 7 is further distributed in the bearing bores 3 a, 3 b towards the roller bearings 4.
  • the disk 13 is equipped with appropriately designed lubricant grooves, which promote the distribution of the lubricant.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Die Erfindung betrifft einen Zwirnkopfrotor für eine Kabliermaschine gemäß dem Oberbegriff des Anspruches 1.The invention relates to a twisting head rotor for a cabling machine according to the preamble of claim 1.

Bei einer Kabliermaschine wird ein erster Faden von einer über einer Hohlspindel angeordneten ersten stationären Vorlagespule abgezogen, während ein zweiter von einer zweiten Vorlagespule abgezogener Faden von unten zentral in die Hohlspindel eingeführt wird. Der zweite Faden tritt seitlich aus der Hohlspindel aus und rotiert in einem Fadenballon um die erste Vorlagespule, bevor er durch einen oberhalb der Hohlspindel frei drehbar gelagerten Zwirnkopfrotor mit dem ersten Faden zusammengeführt wird. Der Zwirnkopfrotor weist zwei Ausgleichsrollenpaare auf, die jeweils an einer gemeinsamen Drehachse angeordnet sind. Die beiden Drehachsen sind in zueinander parallel angebrachten Lagerbohrungen angeordnet, die quer zur Längsachse des Zwirnkopfrotors verlaufen. Die Lagerung der beiden Drehachsen erfolgt in jeweils zwei nebeneinander angeordneten in den Lagerbohrungen angeordneten Wälzlagern. Die Wälzlagerpaare sind durch einen in einer umlaufenden Nut im Inneren der Lagerbohrungen angeordneten Distanzring gegenseitig beabstandet. Zur Lagerung der Drehachsen werden nachschmierbare oder lebensdauergeschmierte Wälzlager verwendet.In a cabling machine, a first thread is withdrawn from a first stationary feed bobbin arranged above a hollow spindle, while a second thread withdrawn from a second feed bobbin is introduced centrally from below into the hollow spindle. The second thread exits laterally from the hollow spindle and rotates in a yarn balloon around the first feed bobbin before it is brought together by a above the hollow spindle freely rotatably mounted Zwirnkopfrotor with the first thread. The Zwirnkopfrotor has two pairs of balancing rollers, which are each arranged on a common axis of rotation. The two axes of rotation are arranged in mutually parallel bearing bores which extend transversely to the longitudinal axis of the Zwirnkopfrotors. The bearing of the two axes of rotation takes place in two juxtaposed arranged in the bearing bores bearings. The rolling bearing pairs are mutually spaced by a arranged in a circumferential groove in the interior of the bearing bores spacer. For the bearings of the axes of rotation relubricated or life-lubricated bearings are used.

Die Lebensdauer der Wälzlager des Zwirnkopfrotors ist maßgeblich von deren Schmierzustand abhängig. Auf Grund der durch die Rotation des Zwirnkopfrotors auf die Wälzlager einwirkenden Zentrifugalkräfte wird das als Schmiermittel verwendete Fett nach außen gepresst, wodurch sich mit zunehmender Laufzeit eine Mangelschmierung auf Grund der Ölabscheidung aus dem Schmiermittel einstellt. Dies lässt den Austausch der Wälzlager oder ein regelmäßiges Nachschmieren erforderlich werden.The service life of the roller bearings of the twisting head rotor depends largely on their lubrication condition. Due to the centrifugal forces acting on the rolling bearings due to the rotation of the twisting head rotor, the grease used as the lubricant is pressed outwards, resulting in deficient lubrication due to the oil separation from the bearing Adjusting lubricant. This requires replacement of rolling bearings or regular relubrication.

Der Einsatz von lebensdauergeschmierten Wälzlagern scheidet ebenfalls auf Grund der eintretenden Mangelschmierung, bedingt durch die Zentrifugalkraft, aus. Auch hier führt die Zentrifugalkraft zu einer Abscheidung des im Schmiermittel enthaltenen Öles, welches dann aus den Wälzlagern austritt. Der in den Wälzlagern verbleibende Teil des Schmiermittels ist nicht geeignet, eine ausreichende Schmierung während des Betriebes des Zwirnkopfrotors zu gewährleisten. Zudem sind diese Wälzlager bauartbedingt nicht mehr nachschmierbar.The use of lifetime-lubricated bearings also eliminates due to the incoming deficient lubrication, caused by the centrifugal force, from. Again, the centrifugal force leads to a separation of the oil contained in the lubricant, which then emerges from the rolling bearings. The part of the lubricant remaining in the rolling bearings is not suitable for ensuring adequate lubrication during operation of the twisting head rotor. In addition, these bearings are no longer relubricated due to the design.

Die DE 202 09 091 U1 beschreibt einen Zwirnkopfrotor der eingangs genannten Art, der zur Vereinfachung der Nachschmierung der Wälzlager derart ausgebildet ist, dass jeweils ein Ausgleichsrollenpaar mitsamt den Wälzlagern und der Drehachse in einer Rollenpatrone gelagert ist. Die Rollenpatrone ist aus der Lagerbohrung des Zwirnkopfrotors entnehmbar, um mittels einer eigens dafür entwickelten Schmiervorrichtung die Wälzlager nachschmieren zu können. Hierzu wird die jeweils demontierte Rollenpatrone in die Schmiervorrichtung eingesetzt, an die eine Schmiermittelpresse angeschlossen ist. Diese Lösung hat sich jedoch als wenig praktikabel erwiesen, da der Aufwand des Aus- und Einbaus der Rollenpatrone sich gegenüber dem vollständigen Austausch der Wälzlager, wenn diese aufgrund der Mangelschmierung ausgetauscht werden müssen, nur geringfügig reduziert hat.The DE 202 09 091 U1 describes a Zwirnkopfrotor of the aforementioned type, which is designed to simplify the relubrication of the rolling bearings such that in each case a compensating roller pair is mounted together with the rolling bearings and the axis of rotation in a roller cartridge. The roller cartridge can be removed from the bearing bore of the twisting head rotor in order to relubricate the rolling bearings by means of a specially developed lubricating device. For this purpose, the respectively disassembled roller cartridge is inserted into the lubricating device, to which a lubricant press is connected. However, this solution has proved to be less practicable, since the cost of removing and installing the roller cartridge has only slightly reduced compared to the complete replacement of the roller bearings, if they must be replaced due to the lack of lubrication.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zu Grunde, einen Zwirnkopfrotor bereitzustellen, der ein einfaches Nachschmieren der Wälzlager ohne zusätzlichen Montageaufwand ermöglicht.Based on the aforementioned prior art, the invention is based on the object to provide a Zwirnkopfrotor that allows easy re-lubrication of rolling bearings without additional installation work.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is solved by the characterizing features of claim 1.

Vorteilhafte Ausbildungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Gemäß Anspruch 1 wird vorgeschlagen, dass eine der beiden Lagerbohrungen mit einer Anschlusseinrichtung zur Zuführung eines Schmiermittels verbunden ist und die beiden Lagerbohrungen durch eine Durchgangsbohrung miteinander verbunden sind. Ein wesentlicher Vorteil liegt darin, dass der Montageaufwand zum Aus- und Einbau der Wälzlager entfällt, um beide Wälzlagerpaare durch einen Arbeitsgang nachzuschmieren. Die vereinfachte Möglichkeit der Nachschmierung in montierter Position der Wälzlagerpaare verkürzt das für die Nachschmierung notwendige Wartungsintervall gegenüber dem aus dem Stand der Technik bekannten Zwirnkopfrotor, wodurch einerseits die Produktivität der Kabliermaschine mit erfindungsgemäßen Zwirnkopfrotoren gesteigert wird. Andererseits wird der zur Pflege erforderliche Aufwand reduziert, was ein häufigeres Nachschmieren zulässt, ohne die Produktivität zu reduzieren. Dies führt gegenüber dem Stand der Technik zu einer Erhöhung der Standzeiten des Zwirnkopfrotors und somit zu einer Erhöhung des Nutzeffektes der Maschine, auf der der erfindungsgemäße Zwirnkopfrotor zum Einsatz kommt. Dies ist vor allem auf die Reduzierung des Verschleißes der Wälzlagerpaare zurückzuführen, da dem Auftreten einer Mangelschmierung durch Ölabscheidung vorgebeugt wird.According to claim 1 it is proposed that one of the two bearing bores is connected to a connection device for supplying a lubricant and the two bearing bores are connected to each other by a through hole. A significant advantage is that the assembly costs for removing and installing the rolling bearings omitted to relubricate two pairs of rolling bearings by a single operation. The simplified possibility of relubrication in the assembled position of the rolling bearing pairs shortens the maintenance interval necessary for the relubrication over the prior art twisting head rotor, which on the one hand increases the productivity of the cabling machine with twisting head rotors according to the invention. On the other hand, the effort required for the care is reduced, which allows a more frequent relubrication without reducing productivity. This leads over the prior art to an increase in the service life of the Zwirnkopfrotors and thus to an increase in the efficiency of the machine on which the Zwirnkopfrotor invention is used. This is mainly due to the reduction in the wear of the roller bearing pairs, as the occurrence of a lack of lubrication is prevented by oil separation.

Die Anschlusseinrichtung kann über eine Verbindungsbohrung mit einer der Lagerbohrungen verbunden sein. Vorteilhafterweise können die Durchgangsbohrung und die Verbindungsbohrung im Wesentlichen koaxial zur Rotationsachse verlaufen, was aus fertigungstechnischen Gesichtspunkten des Zwirnkopfrotors vorteilhaft ist.The connection device can be connected via a connecting bore with one of the bearing bores. Advantageously, the through-hole and the connecting bore may be substantially coaxial with the axis of rotation, which may be manufacturing aspects of the Zwirnkopfrotors is advantageous.

Vorteilhafterweise kann die Anschlusseinrichtung im Bereich der Rotationsachse des Zwirnkopfrotors angeordnet sein. Dies ermöglicht den Anschluss einer Schmiermittelzuführvorrichtung wie beispielsweise einer Schmiermittelpresse oberhalb einer der beiden Lagerbohrungen.Advantageously, the connection device can be arranged in the region of the axis of rotation of the twisting head rotor. This allows the connection of a Schmiermittelzuführvorrichtung such as a lubricant press above one of the two bearing bores.

Alternativ kann die Anschlusseinrichtung koaxial zu einer der Drehachsen angeordnet sein. In diesem Fall erfolgt die Zuführung des Schmiermittels durch die Drehachse einer der Lagerbohrungen senkrecht zur Rotationsachse des Zwirnkopfrotors hindurch, was sich durch eine bessere Zugänglichkeit der an Anschlusseinrichtung auszeichnen kann.Alternatively, the connection device can be arranged coaxially to one of the axes of rotation. In this case, the supply of lubricant through the axis of rotation of one of the bearing bores is perpendicular to the axis of rotation of the Zwirnkopfrotors, which may be characterized by a better accessibility of the connection device.

Vorzugsweise können die Distanzmittel als Distanzringe ausgebildet sein, die jeweils in einer radial umlaufenden Nut der Lagerbohrungen angeordnet sind.Preferably, the spacer means may be formed as spacers, which are each arranged in a radially circumferential groove of the bearing bores.

Des Weiteren kann in die Nut eine umlaufende kanalförmige Ausnehmung eingebracht sein, die einen geringeren Querschnitt als die Nut aufweist, der das Berühren des Grundes der Ausnehmung durch den jeweiligen Distanzring verhindert.Furthermore, in the groove, a circumferential channel-shaped recess may be introduced, which has a smaller cross section than the groove, which prevents the touching of the bottom of the recess by the respective spacer ring.

Der erfindungsgemäß ausgeführte Zwirnkopfrotor erlaubt die nahezu gleichzeitige Zuführung eines Schmiermittels zu beiden Wälzlagerpaaren, indem sich das durch eine Anschlusseinrichtung in eine Lagerbohrung eingebrachte Schmiermittel über die kanalartige Ausnehmung hinter dem Distanzring durch die Durchgangsbohrung in die andere Lagerbohrung ausbreitet. Durch die kanalisierte Zufuhr über die zwischen den Wälzlagerpaaren angeordneten Distanzringe werden alle Wälzlager mit dem eingebrachten Schmiermittel versorgt. Dabei wird durch die Distanzringe eine Vergleichmäßigung der Schmiermittelzufuhr erreicht.The present invention carried out Zwirnkopfrotor allows almost simultaneous supply of a lubricant to both pairs of bearings by the introduced by a connection device in a bearing bore lubricant spreads through the channel-like recess behind the spacer ring through the through hole in the other bearing bore. Through the channeled supply via the arranged between the rolling bearing pairs spacers all rolling bearings with the supplied lubricant supplied. In this case, a homogenization of the lubricant supply is achieved by the spacer rings.

Insbesondere kann der Distanzring in Umfangsrichtung durch ein Ringsegment unterbrochen sein, um die Durchgangsbohrung zumindest abschnittsweise zur Zuführung des Schmiermittels zu den Wälzlagern freizugeben. Auf diese Weise wird der Schmiermittelfluss von der einen Lagerbohrung in Richtung der anderen Lagerbohrung verbessert.In particular, the spacer ring can be interrupted in the circumferential direction by a ring segment in order to release the through-hole at least in sections for supplying the lubricant to the roller bearings. In this way, the flow of lubricant is improved by the one bearing bore in the direction of the other bearing bore.

Um zu gewährleisten, dass die Distanzringe eine bevorzugte Position in der Nut einhalten, kann die Beweglichkeit des Distanzrings durch eine der Durchgangsbohrung benachbarte, in der Nut angeordnete Erhebung begrenzt sein. Die sich abschnittsweise in Umfangsrichtung der Nut erstreckende Erhebung unterbricht die Ausnehmung in der Nut partiell, wodurch erreicht wird, dass der Distanzring zu seiner Positionierung mit einem seiner Enden an der Erhebung anliegt. Wird die Durchgangsbohrung durch das eine Ende des Distanzringes verdeckt, kann der Distanzring auf Grund des sich aufbauenden Schmiermitteldruckes in der Ausnehmung in seine ideale Position zurückgeführt werden, wodurch die Durchgangsbohrung wieder freigegeben wird.In order to ensure that the spacers maintain a preferred position in the groove, the mobility of the spacer ring may be limited by an elevation disposed adjacent the through-hole and disposed in the groove. The sectionally extending in the circumferential direction of the groove survey interrupts the recess in the groove partially, whereby it is achieved that the spacer rests on its positioning with one of its ends on the survey. If the through hole is covered by the one end of the spacer ring, the spacer ring can be returned due to the build-up lubricant pressure in the recess in its ideal position, whereby the through hole is released again.

Die Erfindung wird nachfolgend anhand der Figuren näher erläutert.The invention will be explained in more detail with reference to FIGS.

Es zeigen:

Fig. 1
eine Teilschnittansicht eines erfindungsgemäßen Zwirnkopfrotors,
Fig. 2
eine vergrößerte Detailschnittansicht gemäß dem Schnitt A-A nach Fig. 1,
Fig. 3
eine Teilschnittansicht einer alternativen Ausführungsform des Zwirnkopfrotors gemäß Fig. 1 in einer um 90° gedrehten Position,
Show it:
Fig. 1
a partial sectional view of a Zwirnkopfrotors invention,
Fig. 2
an enlarged detail sectional view according to the section AA after Fig. 1 .
Fig. 3
a partial sectional view of an alternative embodiment of the Zwirnkopfrotors according to Fig. 1 in a position rotated by 90 °,

Fig. 4 eine vergrößerte Detailschnittansicht X gemäß Fig. 3. Fig. 4 an enlarged detail sectional view X according to Fig. 3 ,

Figur 1 zeigt einen Zwirnkopfrotor 1 wie er in der
DE 197 00 222 C1 beschrieben ist, deren Offenbarungsgehalt zum Inhalt der vorliegenden Beschreibung gemacht wird.
FIG. 1 shows a twisting head rotor 1 as shown in the
DE 197 00 222 C1 is described, the disclosure of which is made the content of the present description.

Der Zwirnkopfrotor 1 ist mit zwei übereinander, senkrecht zur Rotationsachse 14 des Zwirnkopfrotors 1 angeordneten Lagerbohrungen 2a, 2b versehen. Die Lagerbohrungen 2a, 2b sind gegenüber der Rotationsachse 14 des Zwirnkopfrotors 1 jeweils nach hinten versetzt angeordnet, wie in Fig. 1 dargestellt. Die Lagerbohrungen 2a, 2b dienen der Aufnahme jeweils einer Drehachse 3a, 3b, die mittels zweier Wälzlager 4 in der jeweiligen Lagerbohrungen 2a, 2b gelagert sind. An den Drehachsen 3a, 3b sind endseitig zwei Ausgleichsrollen 5 einander gegenüberliegend angeordnet, die durch den Zwirnkopfrotor 1 zueinander beabstandet sind.The Zwirnkopfrotor 1 is provided with two superposed, perpendicular to the rotation axis 14 of the Zwirnkopfrotors 1 bearing bores 2a, 2b. The bearing bores 2a, 2b are offset relative to the rotation axis 14 of the twisting-end rotor 1, respectively, to the rear, as in FIG Fig. 1 shown. The bearing bores 2a, 2b serve to receive a respective rotation axis 3a, 3b, which are mounted in the respective bearing bores 2a, 2b by means of two roller bearings 4. At the rotational axes 3 a, 3 b two balancing rollers 5 are arranged opposite one another at the end, which are spaced apart from each other by the twisting-head rotor 1.

Die Lagerbohrung 2a, 2b ist durch eine koaxial zur Längsachse der Lagerbohrung 2a, 2b umlaufende Nut 6 in zwei Abschnitte unterteilt, wie in Fig. 2 dargestellt, die der Anordnung der beiden Wälzlager 4 in der jeweiligen Lagerbohrung 2a, 2b dienen.The bearing bore 2a, 2b is divided by a coaxial with the longitudinal axis of the bearing bore 2a, 2b circumferential groove 6 into two sections, as in Fig. 2 shown, which serve the arrangement of the two rolling bearings 4 in the respective bearing bore 2a, 2b.

In der jeweiligen Nut 6 der Lagerbohrungen 2a, 2b ist ein Distanzring 7 angeordnet, der die Wälzlager 4 gegenseitig beabstandet und gegen eine axiale Verschiebung sichert.In the respective groove 6 of the bearing bores 2a, 2b, a spacer ring 7 is arranged, which mutually spaced the rolling bearing 4 and secures against axial displacement.

Die Nut 6 weist zusätzlich eine radial umlaufende, vorzugsweise kanalförmige Ausnehmung 8 an ihrem Grund auf, die einen geringeren Querschnitt als die Nut 6 besitzt. Der Querschnitt der Ausnehmung 8 ist derart gewählt, dass das Berühren des Grundes der Ausnehmung 8 durch den in der Nut 6 befindlichen Distanzring 7 verhindert wird.The groove 6 additionally has a radially encircling, preferably channel-shaped recess 8 at its bottom, which has a smaller cross-section than the groove 6. The cross section of the recess 8 is chosen such that the touching of the bottom of the recess 8 is prevented by the located in the groove 6 spacer ring 7.

Des Weiteren sind die Lagerbohrungen 2a, 2b durch eine koaxial zur Rotationsachse 14 des Zwirnkopfrotors 1 verlaufende Durchgangsbohrung 9 miteinander verbunden. In dem in Fig. 1 dargestellten Ausführungsbeispiel ist die obere Lagerbohrung 2a ihrerseits über eine Verbindungsbohrung 10 mit einer Anschlusseinrichtung 11, wie zum Beispiel einem Schmiernippel, zur Zuführung eines Schmiermittels verbunden.Furthermore, the bearing bores 2 a, 2 b are connected to one another by a through bore 9 extending coaxially to the axis of rotation 14 of the twisting-end rotor 1. In the in Fig. 1 illustrated embodiment, the upper bearing bore 2a is in turn connected via a connecting bore 10 with a connection device 11, such as a grease nipple, for supplying a lubricant.

Die Distanzringe 7 sind als Sicherungsringe ausgeführt, die in Umfangsrichtung durch einen Ringspalt unterbrochen sind. Um derartige Distanzringe 7 gegen ein Verdrehen innerhalb der Nut 6 zu sichern, ist benachbart zu der die Lagerbohrungen 2a, 2b verbindenden Durchgangsbohrung 9 eine Erhebung 12 vorgesehen, die sich abschnittsweise in Umfangsrichtung der Nut 6 erstreckt. Der Distanzring 7 liegt mit einem seiner beiden Enden an der Erhebung 12 an, das heißt, die Erhebung 12 befindet sich zwischen dem Ringspalt. Somit wird der Distanzring 7 gegenüber der Durchgangsbohrung 9 derart positioniert, dass die Öffnung der Durchgangsbohrung 9 im Allgemeinen weitgehend freiliegt, um den Durchtritt des Schmiermittels zu gewährleisten.The spacers 7 are designed as retaining rings, which are interrupted in the circumferential direction by an annular gap. To secure such spacers 7 against rotation within the groove 6, adjacent to the bearing bores 2a, 2b connecting through hole 9, a survey 12 is provided, which extends in sections in the circumferential direction of the groove 6. The spacer ring 7 rests with one of its two ends on the elevation 12, that is, the elevation 12 is located between the annular gap. Thus, the spacer ring 7 is positioned relative to the through-hole 9 such that the opening of the through-hole 9 is generally largely exposed to ensure the passage of the lubricant.

Die Zuführung des Schmiermittels erfolgt vorzugsweise durch eine an die Anschlusseinrichtung 11 anschließbare Schmiermittelpresse. Das Schmiermittel gelangt über die Verbindungsbohrung 10 in die Ausnehmung 8 hinter dem Distanzring 7 der oberen Lagerbohrung 2a. Die Ausnehmung 8 kanalisiert das Schmiermittel in Richtung der Öffnung der Durchgangsbohrung 9. Von dort drängt das Schmiermittel zwischen der Unterbrechung des Distanzringes 7 nach außen hin zu den beiden Wälzlagern 4. Zugleich wird das Schmiermittel über die Durchgangsbohrung 9 zwischen den Lagerbohrungen 2a, 2b in die untere Lagerbohrung 2b gepresst und tritt dort aus, um sich ebenfalls in Richtung der Wälzlager 4 der unteren Lagerbohrung 2b auszudehnen.The supply of the lubricant is preferably carried out by a connectable to the connection device 11 lubricant press. The lubricant passes through the connecting hole 10 in the recess 8 behind the spacer ring 7 of the upper bearing bore 2a. The recess 8 channels the lubricant From there, the lubricant between the interruption of the spacer ring 7 pushes outwardly towards the two rolling bearings 4. At the same time, the lubricant is pressed through the through hole 9 between the bearing holes 2a, 2b in the lower bearing bore 2b and enters There to also extend in the direction of the bearings 4 of the lower bearing bore 2b.

Die weitere Verteilung des Schmiermittels wird durch die im Betrieb einwirkende Fliehkraft bewirkt, wodurch die Nachschmierung nur aus dem Inneren des Zwirnkopfrotors 1 heraus sinnvoll ist. Während des Betriebes wird das Schmiermittel auf Grund der Rotation des Zwirnkopfrotors 1 hervorgerufenen Fliehkraft sowie durch die Führung des Fadens über die Ausgleichsrollen 5 erzeugte Rotation der Drehachse 3a, 3b ausgehend von der Ausnehmung 8 nach Außen in die Wälzlager 4 befördert. Die Wälzlager 4 sind einseitig auf ihrer den Ausgleichsrollen 5 zugewandten Seite abgedichtet.The further distribution of the lubricant is effected by the centrifugal force acting during operation, whereby the relubrication only from the interior of the twisting head rotor 1 makes sense. During operation, the lubricant due to the rotation of the Zwirnkopfrotors 1 caused centrifugal force as well as by the leadership of the thread on the compensating rollers 5 generated rotation of the rotation axis 3a, 3b transported from the recess 8 to the outside in the bearings 4. The rolling bearings 4 are sealed on one side on their compensation rollers 5 side facing.

Gemäß der in Fig. 3 und Fig. 4 dargestellten alternativen Ausführungsform des Zwirnkopfrotors ist eine der beiden Drehachsen 3a, 3b mit einer Anschlusseinrichtung 11 verbunden. In dem Ausführungsbeispiel gemäß Fig. 3 erstreckt sich hierzu ein Schmiermittelleitkanal 15 koaxial zur Längsachse der Drehachse 3a ausgehend von der Anschlusseinrichtung 11 bis in den Bereich der Durchgangsbohrung 9 zwischen den Lagerbohrungen 2a, 2b, wie in Fig. 4 dargestellt.According to the in Fig. 3 and Fig. 4 illustrated alternative embodiment of the Zwirnkopfrotors one of the two axes of rotation 3a, 3b is connected to a connection device 11. In the embodiment according to Fig. 3 For this purpose, a lubricant guide channel 15 extends coaxially to the longitudinal axis of the rotation axis 3a starting from the connection device 11 into the region of the through-hole 9 between the bearing bores 2a, 2b, as in FIG Fig. 4 shown.

Durch den Schmiermittelleitkanal 15 lässt sich die Nachschmierung der Wälzlager 4 von der Seite des Zwirnkopfrotors 1 her durchführen. Dabei tritt das Schmiermittel radial aus dem Schmiermittelleitkanal 15 aus, und wird über eine zwischen den Wälzlagern 4 angeordnete Scheibe 13 der Durchgangsbohrung 9 und dem Ringspalt des Distanzrings 7 der Lagerbohrung 2a zugeführt. Das Schmiermittel tritt über die Durchgangsbohrung 9 in den Ringspalt des Distanzrings 7 der Lagerbohrung 2b ein. Das aus den Ringspalten der Distanzringe 7 austretende Schmiermittel verteilt sich weiter in den Lagerbohrungen 3a, 3b hin zu den Wälzlagern 4. Die Scheibe 13 ist mit zweckmäßig gestalteten Schmiermittelnuten ausgestattet, die die Verteilung des Schmiermittels begünstigen.By the Schmiermittelleitkanal 15, the relubrication of the rolling bearing 4 can be carried out from the side of the Zwirnkopfrotors 1 ago. In this case, the lubricant exits radially from the Schmiermittelleitichkanal 15, and is arranged on a arranged between the bearings 4 disc 13 of the Through hole 9 and the annular gap of the spacer ring 7 of the bearing bore 2a supplied. The lubricant enters via the through hole 9 in the annular gap of the spacer ring 7 of the bearing bore 2b. The lubricant emerging from the annular gaps of the spacer rings 7 is further distributed in the bearing bores 3 a, 3 b towards the roller bearings 4. The disk 13 is equipped with appropriately designed lubricant grooves, which promote the distribution of the lubricant.

Claims (9)

  1. Twisting head rotor (1) for a cabling machine, which has two compensating rollers (5) arranged in pairs for evening out the thread tension of two threads to be twisted, wherein the two pairs of compensating rollers are rotatably mounted with one pivot pin (3a, 3b), in each case, in the twisting head rotor (1), and the pivot pins (3) are arranged in bearing bores (2a, 2b), in which two roller bearings (4) in each case, are located for mounting the pivot pins (3a, 3b), the pairs of roller bearings being mutually spaced apart, in each case, by a spacer means (7), characterised in that one of the two bearing bores (2a, 2b) is connected to a connecting device (11) for the supply of a lubricant and the two bearing bores (2a, 2b) are connected to one another by a through-bore (9).
  2. Twisting head rotor (1) according to claim 1, characterised in that the connecting device (11) is connected to one of the bearing bores (2a, 2b) via a connecting bore (10).
  3. Twisting head rotor (1) according to either of claims 1 or 2, characterised in that the through-bore (9) and the connecting bore (10) extend substantially coaxially to the rotational axis (14).
  4. Twisting head rotor (1) according to any one of claims 1 to 3, characterised in that the connecting device (11) is arranged in the region of the rotational axis (14) of the twisting head rotor (1).
  5. Twisting head rotor (1) according to any one of claims 1 to 3, characterised in that the connecting device (11) is arranged coaxially to one of the pivot pins (3a, 3b).
  6. Twisting head rotor (1) according to any one of claims 1 to 5, characterised in that the spacer means (7) are configured as spacer rings (7), which in each case are arranged in a radially peripheral groove (6) of the bearing bores (2a, 2b).
  7. Twisting head rotor (1) according to claim 6, characterised in that a peripheral channel-shaped recess (8) is introduced into the groove (6), which recess has a smaller cross-section than the groove (6), which prevents the base of the recess (8) being touched by the respective spacer ring (7).
  8. Twisting head rotor (1) according to either of claims 6 or 7, characterised in that the spacer rings (7) are interrupted in the peripheral direction in order to clear the through-bore (9) at least in sections to supply the lubricant to the roller bearings (4).
  9. Twisting head rotor (1) according to any one of claims 6 to 8, characterised in that the mobility of the respective spacer ring (7) is limited by an elevation (12) adjacent to the through-bore (9) and arranged in the groove (6).
EP20070014370 2006-08-30 2007-07-21 Twisting head rotor Expired - Fee Related EP1895033B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610040512 DE102006040512A1 (en) 2006-08-30 2006-08-30 Twister head Rotor

Publications (3)

Publication Number Publication Date
EP1895033A2 EP1895033A2 (en) 2008-03-05
EP1895033A3 EP1895033A3 (en) 2011-05-04
EP1895033B1 true EP1895033B1 (en) 2012-11-21

Family

ID=38779570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070014370 Expired - Fee Related EP1895033B1 (en) 2006-08-30 2007-07-21 Twisting head rotor

Country Status (3)

Country Link
EP (1) EP1895033B1 (en)
CN (1) CN101135076B (en)
DE (1) DE102006040512A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696055B (en) * 2013-11-30 2017-04-12 宁波屹立特沃纺织机械有限公司 Uniform twister for twisting
DE102016006832A1 (en) 2016-06-02 2017-12-07 Saurer Germany Gmbh & Co. Kg Twister head rotor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1008713A (en) * 1948-08-02 1952-05-21 Double twist spindle
DE19700222C1 (en) * 1996-07-26 1997-10-09 Saurer Allma Gmbh Twisting head for a cable laying machine
KR100476276B1 (en) * 1998-10-06 2005-03-16 무라타 기카이 가부시키가이샤 Yarn twisting unit
DE19925528C1 (en) * 1999-06-04 2000-05-31 Saurer Allma Gmbh Assembly to mount a twister head to the carrier plate at a twisting machine has a ratchet locking ring at the carrier plate and a ratchet ring at the twister head housing with a sprung disk
CN2416114Y (en) * 2000-03-14 2001-01-24 台州市路桥纺织配件厂 Yarn tension balancer
DE20209091U1 (en) * 2002-06-12 2003-10-16 Saurer Allma Gmbh Roller arrangement for a twisted head rotor
DE10250423A1 (en) * 2002-10-30 2004-05-19 Volkmann Gmbh Spindle bearing for a double wire twisting machine
DE102005035895A1 (en) * 2005-07-30 2007-02-01 Saurer Gmbh & Co. Kg Spindle bearing for double-twist thread spindle with thread guide and vertical shaft, includes downward lubricant channel through thread guide parallel to shaft to improve lubrication

Also Published As

Publication number Publication date
EP1895033A3 (en) 2011-05-04
DE102006040512A1 (en) 2008-03-06
CN101135076B (en) 2011-01-05
CN101135076A (en) 2008-03-05
EP1895033A2 (en) 2008-03-05

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