EP1913187B1 - Spindle bearing for a double-thread twisting spindle - Google Patents

Spindle bearing for a double-thread twisting spindle Download PDF

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Publication number
EP1913187B1
EP1913187B1 EP06754674A EP06754674A EP1913187B1 EP 1913187 B1 EP1913187 B1 EP 1913187B1 EP 06754674 A EP06754674 A EP 06754674A EP 06754674 A EP06754674 A EP 06754674A EP 1913187 B1 EP1913187 B1 EP 1913187B1
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EP
European Patent Office
Prior art keywords
spindle
bearing
lubricant
bearing device
screw
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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.)
Not-in-force
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EP06754674A
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German (de)
French (fr)
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EP1913187A1 (en
Inventor
Heinz Fink
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Oerlikon Textile GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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Publication of EP1913187A1 publication Critical patent/EP1913187A1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/04—Spindles
    • D01H7/20—Lubricating arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/88—Hollow-spindle arrangements

Definitions

  • the invention relates to a spindle bearing for a double-twisting spindle according to the preamble of claim 1.
  • Conventional double-twisting spindles include a spindle bearing, a driven rotor element and a protective pot for receiving the spool.
  • Your spindle bearing has two storage areas. In a top storage area, the protective pot is rotatably mounted on the rotor element and relative thereto. In a sub-storage area, both the pressure forces of a tangential belt, which drives the rotor element by means of a whorl, and the axially acting forces are absorbed by the weight of the protective pot and the coil located therein.
  • the rolling bearings of the sub-storage area are designed for a typical service life of approx. 50,000 h.
  • the rolling bearings in the upper bearing area are designed so that they do not reach this life.
  • a spindle bearing for a double-twisting spindle is for example from the DE-A-195 02 135 known.
  • channels are introduced to Zusupplementarytician discharge of grease.
  • Each Rolling bearing is assigned a grease supply channel and a Fettab technicallykanal. Fettzu Beforekanal and Fettab technicallykanal are each connected to a Fettzu 800ö réelle or Fettabriosö réelle.
  • the grease supply opening or the grease discharge opening form on the outside of the bearing housing the conclusion of a horizontal channel.
  • the generic DE-A-102 50 423 describes a spindle bearing for a double-twisting spindle whose spindle rotor has a spindle shaft which is rotatably supported by means of an upper and a lower rolling bearing.
  • the bearing housing has a fat channel running transversely to the axis of rotation of the spindle rotor. Inside the bearing housing, the grease is distributed by means of a conical distributor ring and fed to the bearings. For the mounting of the distributor ring, a circumferential groove to be introduced into the spindle shaft is required.
  • Both the DE-A-195 02 135 as well as the DE-A-102 50 423 show spindle bearings, in which the accessibility of the grease channels is impaired by the position of the lubricant.
  • the possibilities of a compact design of the double-twisting spindle are limited by the position of the grease channels at half the height between the bearings of the lower storage.
  • a running from above through the Fadenleit analyses parallel to the axis of rotation of the spindle shaft and opening into the lower bearing means lubricant channel is easily accessible after removing the protective cup for the Befettungsvorgang.
  • the placement of a grease gun takes place in the vertical direction and is ergonomically favorable for the maintenance person.
  • the lubricant may enter the bearing area due to the vertical position of the spindle and the running vibrations of the bearing supported by gravity.
  • both the size of the passage for the lubricant and the holding action of the fastening screw are sufficient.
  • the lubricant passage passes through a ring which surrounds the spindle shaft and is firmly connected thereto.
  • a ring stabilizes the attachment and allows a secure engagement of the screw.
  • the rotating ring and the lower bearing device is surrounded by a stationary bearing housing and formed between the bearing housing and the ring a gap seal.
  • the gap seal prevents the lubricant introduced into the lower bearing device through the lubricant channel from rising upwards again. This is done in a simple manner by such a design of the ring that only a small distance between the ring and the bearing housing, whereby no additional sealing elements are needed here. Assembly costs associated with additional sealing elements are avoided.
  • the lower bearing means comprises two axially spaced rolling bearings, wherein above the upper roller bearing a lubricant reservoir is arranged, in which the lubricant channel opens.
  • a sufficient supply of lubricant can be introduced into the lower bearing device, which can be distributed during rotation of the rotor element under the influence of gravity so that both bearings are lubricated satisfactorily.
  • the spindle shaft is driven by means of a cup-shaped whorl, the whorl at least partially enclosing the bearing housing of the lower bearing device, a compact construction of the spindle bearing is possible.
  • Location and Training the whorl allow a largely uniform load on the bearings of the lower bearing device.
  • the spindle bearing according to the invention enables a compact, cost-effective design and an improvement in lubrication.
  • a spindle bearing 1 is shown with a protective pot 2.
  • the protective pot 2 is mounted on a spindle rotor.
  • the spindle rotor comprises the spindle shaft 3, the thread guide body 4, the ring 5 and the whorl 6.
  • the spindle shaft 3 is rotatably supported in the bearing housing 8 by means of the lower bearing device 7.
  • the axis of rotation 12 of the spindle shaft 3 is arranged vertically.
  • the bearing housing 8 is fixedly connected to a known for reasons of simplification, known per se spindle bank.
  • the lower bearing device 7 has two axially spaced rolling bearings 9, 10.
  • the whorl 6 is cup-shaped and on the in the representation of Fig. 1 lower end of the Spindle shaft 3 pressed on.
  • Fig. 1 shows from the screw connection only the fastening screw 13.
  • the screw connection by means of the fastening screws 13, 14, 15, as shown in the illustration of Fig. 3 is recognizable.
  • an upper bearing means 16 is arranged, on which the protective pot 2 is placed. As a result, the protective pot 2 is rotatable relative to the spindle shaft 3.
  • a coil can be plugged, from the in Fig. 1 only part of the sleeve 17 is shown.
  • the upper bearing means 16 comprises two vertically spaced rolling bearings 20, 21.
  • a Fadenleitkanal 22 as in Fig. 1 represented and for example from the DE-A-102 50 423 is known.
  • the fastening screws 13, 14, 15 are designed as hexagon socket screws.
  • Fig. 2 shows the fastening screw 13 in an enlarged view.
  • a lubricant channel 18 is introduced, which, starting from the hexagon socket in the screw head 19, the fastening screw 13 in the longitudinal direction as a bore.
  • the fastening screw 13 replaces a standard grease nipple.
  • the production of Fixing screw 13 is easy and inexpensive by drilling.
  • the bore forming the lubricant channel has, for example, a diameter of 1.2 mm.
  • the lubricant channel 18 opens into a cavity 23 above the rolling bearing 9 of the lower bearing means 7, wherein the cavity 23 serves as a lubricant reservoir.
  • the ring 5 is shaped such that it forms a gap seal 24 with the stationary bearing housing 8 surrounding it.
  • the protective cup 2 is detached from the spindle shaft 3.
  • the fastening screw 13 has become visible or exposed and created without additional effort a light, unobstructed access to the mounting screws 13, 14, 15.
  • the screw head 19 of the fastening screw 13 is marked in color and therefore recognizable without searching at first glance.
  • the color marking is in the detail X the Fig. 3 indicated by cross-hatching.
  • the introduction of the grease used as a lubricant is done with a grease gun.
  • the grease gun can, ergonomically favorable for the operator to be placed in a vertical position on the screw head 19 of the fastening screw 13.
  • the amount of grease required for the lower bearing device 7 is introduced through the lubricant channel 18 of the fastening screw 13 into the cavity 23.
  • the gap seal 24 prevents the grease from rising from the cavity 23 upwards and thus exits the lower bearing means 7.
  • the cavity 23 is dimensioned such that the amount of grease required for the adequate lubrication of the roller bearings 9, 10 does not completely fill the cavity 23.
  • the fat, respectively the oil in the grease can due to the vertical arrangement of the spindle shaft 3 and thus the vertical arrangement of the lower bearing means 7 and under the influence of gravity and the running vibrations, which is subjected to the lower bearing means 7, reach the rolling bearings 9, 10 and enter into this.

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

Abstract

The invention relates to a spindle bearing (1) for a double-thread twisting spindle having a spindle rotor which comprises a thread guide body (4) and a spindle shank (3). The spindle shank (3) is rotatably mounted, so as to be arranged vertically, by means of a lower bearing device (7) in a bearing housing (8) which is fastened to a spindle bank, and has an upper bearing device (16) for mounting a protective cup (2). A lubricant duct (18) runs from the top through the thread guide body (4), parallel to the rotational axis (12) of the spindle shank (3), and opens out into the lower bearing device (7). The design according to the invention constitutes a simple, cost-effective and compact design.

Description

Die Erfindung betrifft eine Spindellagerung für eine Doppeldraht-Zwirnspindel nach dem Oberbegriff des Anspruchs 1.The invention relates to a spindle bearing for a double-twisting spindle according to the preamble of claim 1.

Übliche Doppeldraht-Zwirnspindeln umfassen eine Spindellagerung, ein angetriebenes Rotorelement und einen Schutztopf zur Aufnahme der Spule. Ihre Spindellagerung hat zwei Lagerbereiche. In einem Oberlagerbereich wird der Schutztopf auf dem Rotorelement und relativ zu diesem drehbar gelagert. In einem Unterlagerbereich werden sowohl die Andruckkräfte eines Tangentialriemens, der mittels eines Wirtels das Rotorelement antreibt, als auch die axial wirkenden Kräfte aus dem Gewicht des Schutztopfes und der darin befindlichen Spule aufgenommen. Die Wälzlagerungen des Unterlagerbereichs sind auf eine übliche Lebensdauer von ca. 50.000 h ausgelegt. Die Wälzlagerungen im Oberlagerbereich sind dagegen so ausgelegt, dass sie diese Lebensdauer nicht erreichen. Sie werden nach einer Betriebsdauer, die zwischen 20.000 und 30.000 h liegt, gewechselt. Der Wechsel kann einfach und schnell vorgenommen werden, da der Oberlagerbereich nach Entfernen des Schutztopfes gut zugänglich ist. Beim Unterlagerbereich ist diese leichte Zugänglichkeit nicht vorhanden, da der Wirtel auf den Spindelschaft des Rotorelementes aufgepresst ist und somit ein Abziehen des Wirtels nicht möglich ist. Die Wälzlagerungen im Unterlagerbereich werden daher üblicherweise mit Standardfetten nachgeschmiert, um die Lebensdauer von 50.000 h zu erhalten.Conventional double-twisting spindles include a spindle bearing, a driven rotor element and a protective pot for receiving the spool. Your spindle bearing has two storage areas. In a top storage area, the protective pot is rotatably mounted on the rotor element and relative thereto. In a sub-storage area, both the pressure forces of a tangential belt, which drives the rotor element by means of a whorl, and the axially acting forces are absorbed by the weight of the protective pot and the coil located therein. The rolling bearings of the sub-storage area are designed for a typical service life of approx. 50,000 h. The rolling bearings in the upper bearing area, however, are designed so that they do not reach this life. They are changed after an operating time of between 20,000 and 30,000 h. The change can be made easily and quickly, since the upper bearing area is easily accessible after removing the protective pot. In the sub-storage area, this easy accessibility is not present, since the whorl is pressed onto the spindle shaft of the rotor element and thus a removal of the whorl is not possible. The rolling bearings in the sub-storage area are therefore usually relubricated with standard greases in order to preserve the service life of 50,000 hours.

Eine Spindellagerung für eine Doppeldraht-Zwirnspindel ist beispielsweise aus der DE-A-195 02 135 bekannt. In das Lagergehäuse des Unterlagerbereichs sind Kanäle zum Zubeziehungsweise Abführen von Schmierfett eingebracht. Jedem Wälzlager ist ein Fettzuführkanal und ein Fettabführkanal zugeordnet. Fettzuführkanal und Fettabführkanal sind jeweils mit einer Fettzuführöffnung beziehungsweise Fettabführöffnung verbunden. Die Fettzuführöffnung beziehungsweise die Fettabführöffnung bilden an der Außenseite des Lagergehäuses den Abschluss eines horizontalen Kanales. Das Einbringen von Kanalabschnitten unterschiedlicher Richtungen, wie sie in der DE-A-195 02 135 gezeigt sind, ist fertigungstechnisch aufwändig und kostenträchtig.A spindle bearing for a double-twisting spindle is for example from the DE-A-195 02 135 known. In the bearing housing of the sub-storage area channels are introduced to Zubeziehungsweise discharge of grease. Each Rolling bearing is assigned a grease supply channel and a Fettabführkanal. Fettzuführkanal and Fettabführkanal are each connected to a Fettzuführöffnung or Fettabführöffnung. The grease supply opening or the grease discharge opening form on the outside of the bearing housing the conclusion of a horizontal channel. The introduction of channel sections of different directions, as shown in the DE-A-195 02 135 are shown, is technically complex and costly.

Die gattungsbildende DE-A-102 50 423 beschreibt eine Spindellagerung für eine Doppeldraht-Zwirnspindel, deren Spindelrotor einen Spindelschaft aufweist, der mittels eines oberen und eines unteren Wälzlagers drehbar gelagert ist. Das Lagergehäuse weist einen quer zur Rotationsachse des Spindelrotors verlaufenden Fettkanal auf. Im Innern des Lagergehäuses wird das Fett mittels eines konischen Verteilerrings verteilt und den Lagern zugeführt. Für die Halterung des Verteilerringes wird eine in den Spindelschaft einzubringende Umfangsnut benötigt. Bei der Ausführung der Lagerung der DE-A-102 50 423 ist mit dem lediglich der Fettverteilung dienenden Verteilerring gegenüber anderen bekannten Spindellagerungen ein zusätzliches Teil sowie zusätzlicher Montageaufwand für dieses Teil erforderlich.The generic DE-A-102 50 423 describes a spindle bearing for a double-twisting spindle whose spindle rotor has a spindle shaft which is rotatably supported by means of an upper and a lower rolling bearing. The bearing housing has a fat channel running transversely to the axis of rotation of the spindle rotor. Inside the bearing housing, the grease is distributed by means of a conical distributor ring and fed to the bearings. For the mounting of the distributor ring, a circumferential groove to be introduced into the spindle shaft is required. In carrying out the storage of DE-A-102 50 423 with the only serving distribution of fat distribution ring over other known spindle bearings an additional part and additional installation work for this part is required.

Sowohl die DE-A-195 02 135 als auch die DE-A-102 50 423 zeigen Spindellagerungen, bei der die Zugänglichkeit der Fettkanäle beim Einbringen des Schmiermittels durch ihre Lage beeinträchtigt ist. Auch die Möglichkeiten einer kompakten Ausbildung der Doppeldraht-Zwirnspindel sind durch die Lage der Fettkanäle in halber Höhe zwischen den Wälzlagern der unteren Lagerung begrenzt.Both the DE-A-195 02 135 as well as the DE-A-102 50 423 show spindle bearings, in which the accessibility of the grease channels is impaired by the position of the lubricant. The possibilities of a compact design of the double-twisting spindle are limited by the position of the grease channels at half the height between the bearings of the lower storage.

Es ist Aufgabe der Erfindung, die beschriebenen Nachteile zu beseitigen und die bekannten Spindellagerungen zu verbessern. Diese Aufgabe wird mit einer Spindellagerung mit den Merkmalen des Anspruchs 1 gelöst.It is an object of the invention to eliminate the disadvantages described and to improve the known spindle bearings. This object is achieved with a spindle bearing with the features of claim 1.

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

Ein von oben durch den Fadenleitkörper parallel zur Rotationsachse des Spindelschaftes verlaufender und in die untere Lagereinrichtung mündender Schmiermittelkanal ist nach Abnehmen des Schutztopfes für den Befettungsvorgang leicht zugänglich. Das Aufsetzen einer Fettpresse erfolgt in vertikaler Richtung und ist ergonomisch günstig für die Wartungsperson. Das Schmiermittel kann aufgrund der vertikalen Lage der Spindel und der Laufschwingungen des Lagers, unterstützt durch die Schwerkraft, in den Lagerbereich eintreten.A running from above through the Fadenleitkörper parallel to the axis of rotation of the spindle shaft and opening into the lower bearing means lubricant channel is easily accessible after removing the protective cup for the Befettungsvorgang. The placement of a grease gun takes place in the vertical direction and is ergonomically favorable for the maintenance person. The lubricant may enter the bearing area due to the vertical position of the spindle and the running vibrations of the bearing supported by gravity.

Ist der Schmiermittelkanal in eine Befestigungsschraube mit nach oben weisendem Schraubenkopf eingebracht, mit der der Fadenleitkörper relativ zum Spindelschaft fixierbar ist, ist neben den Bohrungen für die Befestigungsschrauben kein zusätzlicher Fettkanal durch den Fadenleitkörper erforderlich. Ein üblicher Schmiernippel ist nicht erforderlich. Dadurch werden sowohl Kosten für einen üblichen Schmiernippel als auch Kosten für die Montage eines solchen Schmiernippels vermieden.If the lubricant channel is introduced into a fastening screw with an upwardly pointing screw head with which the thread guide body can be fixed relative to the spindle shaft, no additional grease channel through the thread guide body is required in addition to the holes for the fastening screws. A usual grease nipple is not required. As a result, both costs for a common grease nipple and costs for the installation of such a grease nipple are avoided.

Mit einer farblichen Kennzeichnung des Schraubenkopfes, durch die er von Schraubenköpfen weiterer Befestigungsschrauben ohne Schmiermittelkanal unterscheidbar ist, ist die Lage der Befestigungsschraube mit Schmiermittelkanal auf den ersten Blick erkennbar und ein schnelles Nachschmieren möglich.With a color coding of the screw head, by means of which it can be distinguished from screw heads of further fastening screws without lubricant channel, the position of the fastening screw with lubricant channel can be recognized at first glance and a quick relubrication is possible.

Beträgt der Durchmesser des Schmiermittelkanals maximal 1,2 mm, sind sowohl die Größe des Durchlasses für das Schmiermittel als auch die Haltewirkung der Befestigungsschraube ausreichend.If the diameter of the lubricant channel is at most 1.2 mm, both the size of the passage for the lubricant and the holding action of the fastening screw are sufficient.

Vorteilhaft durchquert der Schmiermittelkanal einen Ring, der den Spindelschaft umgibt und fest mit diesem verbunden ist. Ein solcher Ring bewirkt ein Stabilisieren der Befestigung und erlaubt ein sicheres Angreifen der Schraube.Advantageously, the lubricant passage passes through a ring which surrounds the spindle shaft and is firmly connected thereto. Such a ring stabilizes the attachment and allows a secure engagement of the screw.

Bevorzugt ist der rotierende Ring und die untere Lagereinrichtung von einem stillstehenden Lagergehäuse umgeben und zwischen dem Lagergehäuse und dem Ring eine Spaltdichtung gebildet. Die Spaltdichtung verhindert, dass das durch den Schmiermittelkanal in die untere Lagereinrichtung eingebrachte Schmiermittel wieder nach oben steigt. Dies erfolgt auf einfache Weise durch eine solche Ausbildung des Ringes, dass zwischen dem Ring und dem Lagergehäuse nur ein geringer Abstand besteht, wodurch hier keine zusätzlichen Dichtungselemente benötigt werden. Mit zusätzlichen Dichtungselementen verbundener Montageaufwand wird vermieden.Preferably, the rotating ring and the lower bearing device is surrounded by a stationary bearing housing and formed between the bearing housing and the ring a gap seal. The gap seal prevents the lubricant introduced into the lower bearing device through the lubricant channel from rising upwards again. This is done in a simple manner by such a design of the ring that only a small distance between the ring and the bearing housing, whereby no additional sealing elements are needed here. Assembly costs associated with additional sealing elements are avoided.

Vorteilhaft umfasst die untere Lagereinrichtung zwei axial zueinander beabstandete Wälzlager, wobei über dem oberen Wälzlager ein Schmiermittelspeicher angeordnet ist, in den der Schmiermittelkanal mündet. Auf diese Weise lässt sich ein ausreichender Schmiermittelvorrat in die untere Lagereinrichtung einbringen, der sich bei Rotation des Rotorelementes unter Einfluss der Schwerkraft so verteilen kann, dass beide Wälzlager zufrieden stellend geschmiert werden.Advantageously, the lower bearing means comprises two axially spaced rolling bearings, wherein above the upper roller bearing a lubricant reservoir is arranged, in which the lubricant channel opens. In this way, a sufficient supply of lubricant can be introduced into the lower bearing device, which can be distributed during rotation of the rotor element under the influence of gravity so that both bearings are lubricated satisfactorily.

Wird der Spindelschaft mittels eines topfförmigen Wirtels angetrieben, wobei der Wirtel das Lagergehäuse der unteren Lagereinrichtung mindestens teilweise umschließt, ist eine kompakte Bauweise der Spindellagerung möglich. Lage und Ausbildung des Wirtels erlauben eine weitgehend gleichmäßige Belastung der Wälzlager der unteren Lagereinrichtung.If the spindle shaft is driven by means of a cup-shaped whorl, the whorl at least partially enclosing the bearing housing of the lower bearing device, a compact construction of the spindle bearing is possible. Location and Training the whorl allow a largely uniform load on the bearings of the lower bearing device.

Die erfindungsgemäße Spindellagerung ermöglicht eine kompakte, kostengünstige Bauform und eine Verbesserung der Schmierung.The spindle bearing according to the invention enables a compact, cost-effective design and an improvement in lubrication.

Weitere Einzelheiten der Erfindung sind den Ausführungsbeispielen der Figuren entnehmbar.Further details of the invention are the embodiments of the figures removed.

Es zeigen:

Fig. 1
einen Schnitt durch die Spindellagerung einer Doppeldraht-Zwirnspindel,
Fig. 2
einen Schnitt durch eine Befestigungsschraube mit Schmiermittelkanal in gegenüber der Fig. 1 vergrößerter Darstellung,
Fig. 3
eine Draufsicht auf den Fadenleitring und den Spindelschaft bei abgenommenem Schutztopf sowie die Einzelheit X in vergrößerter Darstellung.
Show it:
Fig. 1
a section through the spindle bearing a double-twisting spindle,
Fig. 2
a section through a fastening screw with lubricant channel in relation to the Fig. 1 enlarged view,
Fig. 3
a plan view of the Fadenleitring and the spindle shaft with removed protective pot and the detail X in an enlarged view.

In der Fig. 1 ist eine Spindellagerung 1 mit einem Schutztopf 2 dargestellt. Der Schutztopf 2 ist auf einen Spindelrotor aufgesetzt. Der Spindelrotor umfasst den Spindelschaft 3, den Fadenleitkörper 4, den Ring 5 und den Wirtel 6. Der Spindelschaft 3 ist mittels der unteren Lagereinrichtung 7 im Lagergehäuse 8 drehbar gelagert. Die Rotationsachse 12 des Spindelschaftes 3 ist vertikal angeordnet. Das Lagergehäuse 8 ist mit einer aus Vereinfachungsgründen nicht dargestellten, an sich bekannten Spindelbank fest verbunden. Die untere Lagereinrichtung 7 weist zwei axial zueinander beabstandete Wälzlager 9, 10 auf. Der Wirtel 6 ist topfförmig ausgebildet und auf das in der Darstellung der Fig. 1 untere Ende des Spindelschaftes 3 aufgepresst. An den Wirtel 6 greift ein Tangentialriemen 11 an, der über den Wirtel 6 dem Spindelrotor eine Drehbewegung erteilt. Oberhalb der unteren Lagereinrichtung 7 ist der Ring 5 auf den Spindelschaft 3 aufgepresst. Der Fadenleitkörper 4 liegt auf dem Ring 5 auf und ist mittels Schraubverbindung mit diesem fest verbunden. Die Fig. 1 zeigt von der Schraubverbindung lediglich die Befestigungsschraube 13. Im dargestellten Ausführungsbeispiel erfolgt die Schraubverbindung mittels der Befestigungsschrauben 13, 14, 15, wie aus der Darstellung der Fig. 3 erkennbar ist.In the Fig. 1 a spindle bearing 1 is shown with a protective pot 2. The protective pot 2 is mounted on a spindle rotor. The spindle rotor comprises the spindle shaft 3, the thread guide body 4, the ring 5 and the whorl 6. The spindle shaft 3 is rotatably supported in the bearing housing 8 by means of the lower bearing device 7. The axis of rotation 12 of the spindle shaft 3 is arranged vertically. The bearing housing 8 is fixedly connected to a known for reasons of simplification, known per se spindle bank. The lower bearing device 7 has two axially spaced rolling bearings 9, 10. The whorl 6 is cup-shaped and on the in the representation of Fig. 1 lower end of the Spindle shaft 3 pressed on. At the whorl 6 engages a tangential belt 11, which gives the spindle rotor via the whorl 6 a rotary motion. Above the lower bearing device 7, the ring 5 is pressed onto the spindle shaft 3. The Fadenleitkörper 4 rests on the ring 5 and is firmly connected by means of a screw connection with this. The Fig. 1 shows from the screw connection only the fastening screw 13. In the illustrated embodiment, the screw connection by means of the fastening screws 13, 14, 15, as shown in the illustration of Fig. 3 is recognizable.

Am oberen Ende des Spindelschaftes 3 ist eine obere Lagereinrichtung 16 angeordnet, auf die der Schutztopf 2 aufgesetzt ist. Dadurch ist der Schutztopf 2 relativ zum Spindelschaft 3 drehbar. Im Schutztopf 2 ist eine Spule aufsteckbar, von der in Fig. 1 lediglich ein Teil der Hülse 17 gezeigt ist. Die obere Lagereinrichtung 16 umfasst zwei vertikal zueinander beabstandete Wälzlager 20, 21. Durch den Schutztopf 2, den Spindelschaft 3 und den Fadenleitkörper 4 verläuft ein Fadenleitkanal 22, wie er in Fig. 1 dargestellt und beispielsweise aus der DE-A-102 50 423 bekannt ist.At the upper end of the spindle shaft 3, an upper bearing means 16 is arranged, on which the protective pot 2 is placed. As a result, the protective pot 2 is rotatable relative to the spindle shaft 3. In protective cup 2, a coil can be plugged, from the in Fig. 1 only part of the sleeve 17 is shown. The upper bearing means 16 comprises two vertically spaced rolling bearings 20, 21. Through the protective pot 2, the spindle shaft 3 and the thread guide 4 a Fadenleitkanal 22, as in Fig. 1 represented and for example from the DE-A-102 50 423 is known.

Die Befestigungsschrauben 13, 14, 15 sind als Innensechskantschrauben ausgebildet. Fig. 2 zeigt die Befestigungsschraube 13 in vergrößerter Darstellung. In die Befestigungsschraube 13 ist ein Schmiermittelkanal 18 eingebracht, der vom Innensechskant im Schraubenkopf 19 ausgehend die Befestigungsschraube 13 in Längsrichtung als Bohrung durchquert. Die Befestigungsschraube 13 ersetzt einen üblichen Schmiernippel. Die Herstellung der Befestigungsschraube 13 erfolgt einfach und kostengünstig durch Aufbohren. Die den Schmiermittelkanal bildende Bohrung weist zum Beispiel einen Durchmesser von 1,2 mm auf.The fastening screws 13, 14, 15 are designed as hexagon socket screws. Fig. 2 shows the fastening screw 13 in an enlarged view. In the fastening screw 13, a lubricant channel 18 is introduced, which, starting from the hexagon socket in the screw head 19, the fastening screw 13 in the longitudinal direction as a bore. The fastening screw 13 replaces a standard grease nipple. The production of Fixing screw 13 is easy and inexpensive by drilling. The bore forming the lubricant channel has, for example, a diameter of 1.2 mm.

Der Schmiermittel kanal 18 mündet in einen Hohlraum 23 oberhalb des Wälzlagers 9 der unteren Lagereinrichtung 7, wobei der Hohlraum 23 als Schmiermittelspeicher dient. Der Ring 5 ist derart geformt, dass er mit dem ihn umgebenden stillstehenden Lagergehäuse 8 eine Spaltdichtung 24 bildet.The lubricant channel 18 opens into a cavity 23 above the rolling bearing 9 of the lower bearing means 7, wherein the cavity 23 serves as a lubricant reservoir. The ring 5 is shaped such that it forms a gap seal 24 with the stationary bearing housing 8 surrounding it.

Bei der Wartung, die durchgeführt wird, um den Zustand der Wälzlager 20, 21 der oberen Lagereinrichtung 16 zu überprüfen, wird der Schutztopf 2 vom Spindelschaft 3 abgenommen. Damit ist gleichzeitig die Befestigungsschraube 13 sichtbar beziehungsweise freigelegt geworden und ohne zusätzlichen Aufwand ein leichter, unbehinderter Zugang zu den Befestigungsschrauben 13, 14, 15 geschaffen. Der Schraubenkopf 19 der Befestigungsschraube 13 ist farbig markiert und daher auf den ersten Blick ohne Suchen erkennbar. Die Farbmarkierung ist in der Einzelheit X der Fig. 3 durch Kreuzschraffur angedeutet.In the maintenance performed to check the condition of the rolling bearings 20, 21 of the upper bearing device 16, the protective cup 2 is detached from the spindle shaft 3. Thus, at the same time the fastening screw 13 has become visible or exposed and created without additional effort a light, unobstructed access to the mounting screws 13, 14, 15. The screw head 19 of the fastening screw 13 is marked in color and therefore recognizable without searching at first glance. The color marking is in the detail X the Fig. 3 indicated by cross-hatching.

Üblicherweise erfolgt das Einbringen des als Schmiermittel verwendeten Fettes mit einer Fettpresse. Die Fettpresse kann, ergonomisch günstig für die Bedienungsperson, in vertikaler Lage auf den Schraubenkopf 19 der Befestigungsschraube 13 aufgesetzt werden. Die für die untere Lagereinrichtung 7 benötigte Fettmenge wird durch den Schmiermittelkanal 18 der Befestigungsschraube 13 in den Hohlraum 23 eingebracht. Die Spaltdichtung 24 verhindert, dass das Fett aus dem Hohlraum 23 nach oben steigt und damit aus der unteren Lagereinrichtung 7 austritt. Der Hohlraum 23 ist so bemessen, dass die für die ausreichende Schmierung der Wälzlager 9, 10 benötigte Fettmenge den Hohlraum 23 nicht ganz auffüllt. Das Fett beziehungsweise das im Fett befindliche Öl kann aufgrund der vertikalen Anordnung des Spindelschaftes 3 und damit der vertikalen Anordnung der unteren Lagereinrichtung 7 und unter Einfluss der Schwerkraft sowie der Laufschwingungen, denen die untere Lagereinrichtung 7 unterworfen ist, die Wälzlager 9, 10 erreichen und in diese eintreten.Usually, the introduction of the grease used as a lubricant is done with a grease gun. The grease gun can, ergonomically favorable for the operator to be placed in a vertical position on the screw head 19 of the fastening screw 13. The amount of grease required for the lower bearing device 7 is introduced through the lubricant channel 18 of the fastening screw 13 into the cavity 23. The gap seal 24 prevents the grease from rising from the cavity 23 upwards and thus exits the lower bearing means 7. The cavity 23 is dimensioned such that the amount of grease required for the adequate lubrication of the roller bearings 9, 10 does not completely fill the cavity 23. The fat, respectively the oil in the grease can due to the vertical arrangement of the spindle shaft 3 and thus the vertical arrangement of the lower bearing means 7 and under the influence of gravity and the running vibrations, which is subjected to the lower bearing means 7, reach the rolling bearings 9, 10 and enter into this.

Claims (8)

  1. Spindle bearing for a two-for-one twisting spindle, the spindle rotor of which has a thread guide body (4) and a spindle shaft (3), which is rotatably mounted in a vertical arrangement by means of a lower bearing device (7) in a bearing housing which can be fastened to a spindle bank and which has an upper bearing device (16) for mounting a protective cup (2),
    characterised by
    a lubricant duct (18) extending from the top through the thread guide body (4) at least approximately parallel to the rotational axis (12) of the spindle shaft (3) and opening into the lower bearing device (7).
  2. Spindle bearing according to claim 1, characterised in that the lubricant duct (18) is introduced into a fastening screw (13) with a screw head (19) pointing upward, with which screw the thread guide body (4) can be secured to the spindle shaft (3).
  3. Spindle bearing according to claim 2, characterised in that the screw head (19) is characterised by colour in such a way that it can be distinguished from screw heads of further fastening screws (14, 15).
  4. Spindle bearing according to any one of the preceding claims, characterised in that the diameter of the lubricant duct (18) is a maximum of 1.2 mm.
  5. Spindle bearing according to any one of the preceding claims, characterised in that the lubricant duct (18) traverses a ring (5), which surrounds the spindle shaft (3) and is rigidly connected thereto.
  6. Spindle bearing according to claim 5, characterised in that the rotating ring (5) and the lower bearing device (7) are surrounded by the bearing housing (8) and a gap seal (24) is formed between the bearing housing (8) and the ring (5).
  7. Spindle bearing according to any one of the preceding claims, characterised in that the lower bearing device (7) comprises two roller bearings (9, 10) which are axially spaced apart from one another and a lubricant store into which the lubricant duct (18) opens is arranged above the upper roller bearing (9).
  8. Spindle bearing according to any one of the preceding claims, characterised in that the spindle shaft is driven by means of a cup-shaped whorl (6) and the whorl (6) at least partially surrounds the bearing housing (8).
EP06754674A 2005-07-30 2006-07-05 Spindle bearing for a double-thread twisting spindle Not-in-force EP1913187B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005035895A DE102005035895A1 (en) 2005-07-30 2005-07-30 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
PCT/EP2006/006528 WO2007014612A1 (en) 2005-07-30 2006-07-05 Spindle bearing for a double-thread twisting spindle

Publications (2)

Publication Number Publication Date
EP1913187A1 EP1913187A1 (en) 2008-04-23
EP1913187B1 true EP1913187B1 (en) 2012-04-25

Family

ID=36917345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06754674A Not-in-force EP1913187B1 (en) 2005-07-30 2006-07-05 Spindle bearing for a double-thread twisting spindle

Country Status (5)

Country Link
US (1) US7788894B2 (en)
EP (1) EP1913187B1 (en)
CN (1) CN101233269B (en)
DE (1) DE102005035895A1 (en)
WO (1) WO2007014612A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040512A1 (en) * 2006-08-30 2008-03-06 Oerlikon Textile Gmbh & Co. Kg Twister head Rotor
CN102154746A (en) * 2010-12-14 2011-08-17 江苏华佳丝绸有限公司 Spindle bearing protective device of double twisting machine
CN106801277A (en) * 2017-03-22 2017-06-06 嵊州市裕宝纺织机械有限公司 A kind of weaving spindle that can independently lubricate
CN107904719A (en) * 2017-12-23 2018-04-13 新昌县羽林街道元洋机械厂 A kind of anti-silk thread wind of silk double-twisting machine spindle
DE102019105072A1 (en) * 2019-02-28 2020-09-03 Saurer Technologies GmbH & Co. KG Coil pot storage

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CH289032A (en) * 1951-04-26 1953-02-28 Hauenstein Ernst Two-for-one twisting spindle.
US2942919A (en) * 1956-02-25 1960-06-28 Uster Spindel Motoren Maschf Bearing arrangement on a vertical shaft
SE376025B (en) * 1969-01-07 1975-05-05 Hamel Gmbh Zwirnmaschinen
US3945695A (en) * 1975-03-31 1976-03-23 Mcdonnell Douglas Corporation Fatigue bushing assembly
CN86201745U (en) * 1985-05-17 1987-09-30 米凯拉蒂公司 Double-twist spindle of yarn
IT1235686B (en) * 1989-03-17 1992-09-21 Simec Spa PROCEDURE AND MEANS FOR THE DIRECT AND CURRENT DETERMINATION OF VOLUMES, AVAILABLE IN NEGATIVE, OF AN ENGRAVED TABLE, PARTICULARLY CYLINDRICAL, OR OF THE ABSOLUTE AND RELATIVE CAPACITY OF INK CYLINDERS, PARTICULARLY FOR THE PRESS.
DE19502135C2 (en) 1995-05-04 2003-05-08 Spindelfabrik Neudorf Gmbh Storage for a spinning or twisting spindle
DE29613087U1 (en) * 1996-07-29 1996-09-19 Baier & Köppel GmbH & Co, 91257 Pegnitz Arrangement for the central supply of several friction points with an oil / air mixture
EP1437429B1 (en) * 1998-07-14 2006-07-26 Murata Kikai Kabushiki Kaisha Individual-spindle-drive type multiple twister with a special motor housing
CN2665155Y (en) * 2002-02-03 2004-12-22 于学海 A weaving spindle
DE10250423A1 (en) 2002-10-30 2004-05-19 Volkmann Gmbh Spindle bearing for a double wire twisting machine
CN2615160Y (en) * 2003-05-07 2004-05-12 上海良纺纺织机械专件有限公司 Oil bath lubricating mechanism for ring spinning spindle
CN2625398Y (en) * 2003-05-25 2004-07-14 于学海 Weaving spindle

Also Published As

Publication number Publication date
WO2007014612A1 (en) 2007-02-08
EP1913187A1 (en) 2008-04-23
CN101233269B (en) 2011-01-19
US7788894B2 (en) 2010-09-07
US20090263060A1 (en) 2009-10-22
CN101233269A (en) 2008-07-30
DE102005035895A1 (en) 2007-02-01

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