EP1352117A2 - Ensemble galette - Google Patents

Ensemble galette

Info

Publication number
EP1352117A2
EP1352117A2 EP01974097A EP01974097A EP1352117A2 EP 1352117 A2 EP1352117 A2 EP 1352117A2 EP 01974097 A EP01974097 A EP 01974097A EP 01974097 A EP01974097 A EP 01974097A EP 1352117 A2 EP1352117 A2 EP 1352117A2
Authority
EP
European Patent Office
Prior art keywords
cooling
ring
drive shaft
godet
unit according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01974097A
Other languages
German (de)
English (en)
Inventor
Dirk Zenzen
Dieter Zenker
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
Barmag AG
Saurer GmbH and Co KG
Barmag Barmer Maschinenfabrik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Barmag AG, Saurer GmbH and Co KG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP1352117A2 publication Critical patent/EP1352117A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2340/00—Apparatus for treating textiles
    • F16C2340/18—Apparatus for spinning or twisting

Definitions

  • the invention relates to a godet unit for conveying and guiding a running thread according to the preamble of claim 1.
  • Such godet units are known for guiding individual threads or groups of threads in spinning systems and. promote, for example, to withdraw the thread or threads from a spinneret or, for example, to stretch the thread or threads.
  • the godets are generally equipped with a single drive, which drives the drive shaft connected to a godet jacket.
  • the drive shaft is usually mounted in an area between the godet casing and the electric drive, as is known, for example, from DE 37 01 077.
  • a further godet unit is known from US Pat. No. 4,822,972, in which the drive shaft is mounted in a carrier via at least one roller bearing.
  • the carrier has a plurality of cooling channels, which in particular cool the outer region of the rolling bearing.
  • Such a design essentially absorbs and dissipates the heat given off by the outer ring of the roller bearing on the carrier by the cooling medium.
  • this only increases the problem of differential temperatures between the inner ring and the outer ring of the rolling bearing.
  • the bearing shaft of the drive shaft is essentially heated on the one hand by the bearing friction within the rolling bearing and on the other hand by the amount of heat supplied from the outside.
  • the heat generated by the bearing friction reaches the inner ring and the outer ring of the rolling bearing evenly or unevenly, depending on the design conditions.
  • the heat supplied from outside reaches the rolling bearing depending on the place of origin and the heat conduction within the godet unit. It is known that the electric drive of the drive shaft leads directly to heating of the drive shaft.
  • the heat dissipation from the drive shaft is now preferably provide clock to the con-, so that in particular an additional 'amount of heat is conducted in-the inner ring of the bearing.
  • the godet unit has a means for directly cooling the inner ring. This essentially maintains a uniform operating temperature between the outer ring and the inner ring of the rolling bearing. The influence of external heating is essentially kept away from the rolling bearing, so that a very precise design of the rolling bearing is possible.
  • the means for cooling the inner ring can be designed particularly advantageously as a heat sink which is in heat-transferring contact with the inner ring of the rolling bearing.
  • the heat sink is arranged next to the roller bearing and extends at least radially over a partial circumference of the inner ring. This enables a uniform and continuous heat transfer and heat dissipation.
  • the heat sink is preferably designed as an annular cooling ring which is attached to the circumference of the drive shaft next to and / or below the inner ring.
  • the heat sink is formed in two parts from a cooling ring and a cooling fin carrier.
  • the cooling ring is attached to the circumference of the drive shaft and is connected in such a heat-transferring manner to the cooling fin carrier attached to the carrier that the cooling ring can rotate with the drive shaft relative to the cooling fin carrier.
  • the heat sink is advantageously designed with cooling fins.
  • cutouts in the cooling fins result in a turbulent cooling air flow which is advantageous for cooling being generated when the cooling ring rotates with the drive shaft.
  • the design of the bearing cooling according to the invention is not only limited to godet units with one bearing.
  • the coolant assigned to the roller bearings can achieve a relatively high constancy of the preload force.
  • the disadvantage that temperature differences between the inner ring and the outer ring of the rolling bearing causes a change in the angular position and thus the preload force in the case of inclined rolling bearings can be avoided.
  • the direct heat dissipation on the inner ring of the rolling bearing prevents a change in the angular position, so that the axial preload remains essentially unchanged.
  • the cooling bodies are preferably mounted on the sides of the inner rings facing outside the bearing bore, preferably on the side of the rolling contact between the rolling body and the inner ring.
  • the heat sink facing the drive side can advantageously be flushed with a cooling fluid, preferably with a cooling air that is generated by a cooling fluid generator on the drive side.
  • Cooling fluid generators of this type are primarily used for cooling the electric drive.
  • the cooling air or a cooling fluid can also advantageously be conducted via cooling channels to the cooling body attached to the projecting side of the godet unit.
  • the godet unit according to the invention is particularly suitable for heating the threads guided on the godet jacket.
  • a heating means is provided for heating the godet casing, which is arranged in an annular space formed between the godet casing and the drive shaft.
  • the heat dissipated inwards to the drive shaft is advantageously absorbed and emitted via the heat sinks directly on the inner ring of the roller bearings.
  • FIG. 1 schematically shows a longitudinal section through a first exemplary embodiment of the godet unit according to the invention
  • FIG. 2 schematically shows a longitudinal section through an embodiment of a heated godet unit.
  • a longitudinal section through a godet unit according to the invention is shown schematically.
  • the godet unit consists of a godet jacket 2.
  • the godet jacket 2 is pot-shaped and placed over a drive shaft 1.
  • the projecting end of the drive shaft 1 is rotatably connected to an end wall 4 of the godet casing 2.
  • the godet casing 2 is held on the drive shaft 1 via the bracing element 5.
  • the drive shaft 1 is coupled to a drive 3.
  • the drive 3 is designed as an electric motor and drives the drive shaft 1 and thus the godet casing 2.
  • the drive shaft is supported by two roller bearings 6.1 and 6.2 arranged at a distance from one another.
  • a bearing bore 11 is made in a carrier 10 penetrated by the drive shaft 1, in which the roller bearings 6.1 and 6.2 are received.
  • the roller bearings 6.1 and 6.2 each have an inner ring 8, a rolling element 9 and an outer ring 7.
  • the roller bearings 6.1 and 6.2 are fitted in the bearing bores 11 in such a way that the outer rings 7.1 and 7.2 are held in the carrier 10 and the inner rings 8.1 and 8.2 sit on the drive shaft 1.
  • the bearing bores 11 are connected via an essentially concentric shaft bore made in the carrier 10.
  • the shaft bore is dimensioned such that an air gap forms between the carrier 10 and the drive shaft 11.
  • a cooling body 12.1 and 12.2 is assigned to each rolling bearing 6.1 and 6.2 as a coolant.
  • the heat sink 12.1 is formed by a cooling ring 13.1, which is attached directly next to the inner ring 8.1 of the rolling bearing 6.1 on the circumference of the drive shaft 1.
  • the cooling ring 13.1 and the inner ring 8.1 are in heat-conducting contact.
  • the cooling ring 13.1 is arranged directly on the side of the roller bearing 6.1 facing the projecting end of the drive shaft 1.
  • the cooling ring 13.1 has a heat-emitting opposite to its contact surface resting on the inner ring 8.1 Cooling surface.
  • a plurality of cooling ribs 14 are formed on the cooling ring 13.1 in such a way that they extend in the axial direction and surround the drive shaft 1 as rings with different diameters lying concentrically radially one behind the other.
  • the heat sink 12.2 is assigned to the rolling bearing 6.2 facing the drive side.
  • the heat sink is also designed as a cooling ring 13.2, which bears with a contact surface on the inner ring 8.2 and is attached to the circumference of the drive shaft.
  • the peripheral surface of the cooling ring 13.2 is designed as a cooling surface with a plurality of cooling fins 14.2.
  • the cooling fins are axially formed on the circumference of the cooling ring 13.2 in a disk-like manner.
  • the cooling fins 14.2 and part of the cooling ring 13.2 protrude outside the bearing bore 11 of the carrier 10 into the interior of the housing 15 slipped over the drive 3.
  • the housing 15 is attached to the carrier 10 and encloses the drive 3.
  • the housing 17 has on the closed end face, an opening through which the power supply to the drive 3 takes place via the line 16.
  • the drive shaft 1 is driven to rotate by the drive 3, in particular an electric motor.
  • the godet casing 2 rotates to guide one or more threads that lie against the circumference of the godet casing.
  • the cooling rings rotate in the bearing area of the drive shaft 1
  • the ffy lring is made of a material which is particularly characterized by a high thermal conductivity, such as aluminum or aluminum alloys.
  • the cooling ring 8 is therefore particularly well suited for the transport of thermal energy. Due to the molded cooling rib The amount of heat introduced into the cooling ring is released into the environment. This results in a heat transfer from the inner ring 8 at the contact surface of the cooling ring, so that the amount of heat introduced into the bearing ring by the drive shaft 1 is emitted directly to the cooling ring 13.
  • the cooling of the inner rings 8.1 and 8.2 thus prevents a significant temperature difference between the outer ring 7 and the inner ring 8 of the roller bearings 6 from occurring.
  • An operating temperature prevailing in the rolling bearing essentially depends on the bearing friction and the bearing forces.
  • the design of the heat sinks 12.1 and 12.2 for cooling the inner rings 8 of the roller bearings 6 is exemplary. Any other shape that makes contact with the inner ring 8 of the roller bearing 6 can be carried out. It is essential for the godet unit according to the invention that the heat introduced into the roller bearing from the outside can be dissipated directly in order to avoid possible temperature differences in the roller bearing.
  • FIG. 1 An exemplary embodiment of a heated godet unit is shown in FIG. The components with the same function were given identical reference numbers.
  • the arrangement of the godet casing 2, the drive shaft 1, the drive 3, the carrier 10 and the housing 15 is essentially identical to the exemplary embodiment shown in FIG. 1. To avoid repetition, reference is made to the description of FIG. 1.
  • a hollow cylindrical heating support 17 is placed over the drive shaft 1 in the area within the godet casing 2 and attached to the support 10 with one end face.
  • a heating means 18 extending essentially over the length of the godet casing 2 is arranged on the circumference of the heating support 17.
  • the heating means 18 is preferably formed by electrical coils, which enable the godet casing 2 to be heated by induction.
  • the drive shaft 1 is supported by the roller bearings 6.1 and 6.2 in the carrier 10. Each of the roller bearings 6.1 and 6.2 is assigned a heat sink as a coolant.
  • the inner ring 8.1 of the roller bearing 6.1 is cooled by the cooling ring 13.1, which is constructed identically to the previous embodiment according to FIG. 1.
  • the roller bearing 6.2 is assigned a heat sink, which consists of a cooling ring 20 and a cooling fin carrier 22.
  • the cooling ring 20 is mounted on the side of the roller bearing 6.2 facing the drive on the circumference of the drive shaft 1 such that an end face of the cooling ring 20 is in contact with the inner ring 8.2 of the roller bearing 6.2.
  • the cooling fin carrier 22 is fastened to the carrier 10.
  • the cooling fin carrier has congruent cooling webs 23 at the level of the incisions of the cooling ring 20, which protrude into the incisions of the cooling ring 20, so that the cooling webs 21 of the cooling ring 20 and the cooling webs 23 of the cooling fin carrier 22 overlap without contact.
  • a thermal bridge is thus formed between the cooling ring 20 and the cooling fin carrier 22, which does not hinder the rotational movement of the drive shaft 1.
  • the cooling fin carrier 22 has a plurality of axially directed cooling fins 14 on the end face facing away from the carrier.
  • the cooling fins are ring-shaped or segment-shaped in order to realize the largest possible cooling surface on the cooling fin carrier 22.
  • a cooling fluid generator 19 is coupled to the electric motor 3, so that a cooling air flow can be generated, which flows around both the drive 3 and the cooling body 12.2.
  • a cooling air flow into the area of the godet casing can be made by appropriate air channels in the housing 15 and / or the carrier 10 lead to intensify the cooling of the rolling bearing 6.1 in cooperation with the cooling ring 13.
  • the design of the heat sink in the exemplary embodiment shown is also exemplary.
  • the invention is not limited to the fact that the inner ring of the rolling bearing is cooled by a cooling body in contact with the inner ring. Solutions are also shown, in which a cooling medium, for example a heat transfer fluid, is guided directly in the vicinity or through the inner ring of the rolling bearing.
  • the heat sink is replaced by a heat conduction system.
  • the contact area between the roller bearing and the heat sink is not limited to the inner ring of the roller bearing.
  • An expansion of the contact surface at least to a partial area of the outer ring of the rolling bearing is possible without major problems.
  • larger differential temperatures between the inner ring and the outer ring but on the other hand, an overall reduction in the operating temperature of the rolling bearing can be achieved.
  • a change can also be carried out in such a way that the heat sink essentially only in heat-conducting contact with the outer ring of the roller bearing stands.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

Ensemble galette destiné au transport et au guidage d'au moins un fil synthétique courant. Un capot de galette en forme de pot est monté de manière saillante sur un support, à l'aide d'un arbre d'entraînement doté d'au moins un palier à roulement. L'arbre d'entraînement est connecté à un entraînement électrique. Selon la présente invention, ledit ensemble comporte un moyen de refroidissement de la bague interne du palier à roulement montée sur l'arbre d'entraînement, qui permet d'éviter la chauffe du palier à roulement par l'intermédiaire de l'arbre d'entraînement. Il en résulte ainsi une homogénéisation et un maintien des températures de fonctionnement entre la bague externe et la bague interne du palier à roulement.
EP01974097A 2000-08-10 2001-08-02 Ensemble galette Withdrawn EP1352117A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10038967 2000-08-10
DE10038967 2000-08-10
PCT/EP2001/008953 WO2002012603A2 (fr) 2000-08-10 2001-08-02 Ensemble galette

Publications (1)

Publication Number Publication Date
EP1352117A2 true EP1352117A2 (fr) 2003-10-15

Family

ID=7651912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01974097A Withdrawn EP1352117A2 (fr) 2000-08-10 2001-08-02 Ensemble galette

Country Status (5)

Country Link
EP (1) EP1352117A2 (fr)
JP (1) JP2004506145A (fr)
CN (1) CN100396832C (fr)
AU (1) AU2001293713A1 (fr)
WO (1) WO2002012603A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024287A1 (de) * 2004-05-15 2005-12-01 Robert Bosch Gmbh Lagervorrichtung und Lüftungsvorrichtung
JP5562417B2 (ja) * 2009-07-22 2014-07-30 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 合成糸を引出しかつ延伸するための方法並びに該方法を実施する装置
DE102010046898A1 (de) * 2010-09-29 2012-03-29 Oerlikon Textile Gmbh & Co. Kg Galette
DE102011102560A1 (de) * 2011-05-26 2012-11-29 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Abziehen und Verstrecken eines synthetischen Fadens
US10823227B2 (en) * 2018-03-20 2020-11-03 Safran Electrical & Power System to provide reliable flow of low temperature cooling air to an antifriction bearing buried inside a rotating machine
DE102019134639B4 (de) * 2019-12-17 2021-07-29 Stc Spinnzwirn Gmbh Galette
CN111910339B (zh) * 2020-09-09 2022-05-06 东莞今富五金机械有限公司 一种可加热的送纱器

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7113902U (de) * 1971-07-15 Dienes Honeywell Holding Gmbh Kuhlvorrichtung fur Lager von Heiz galetten
US3706483A (en) * 1971-10-06 1972-12-19 Trw Inc Heat transfer bearing mounting
DE3341862A1 (de) * 1983-11-19 1985-05-30 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Galette
EP0235505B1 (fr) * 1986-03-03 1990-07-18 TEIJIN SEIKI CO. Ltd. Dispositif de refroidissement de palier pour un cylindre chauffant
JPH0823094B2 (ja) * 1988-07-18 1996-03-06 帝人製機株式会社 加熱ローラ装置
JPH04185260A (ja) * 1990-11-20 1992-07-02 Fuji Electric Co Ltd 回転機の軸受部冷却装置
JPH0632752U (ja) * 1992-09-30 1994-04-28 エヌティエヌ株式会社 空冷軸受装置
DE4234303A1 (de) * 1992-10-12 1994-04-14 Schaeffler Waelzlager Kg Wälzlager mit verbesserter Wärmeabfuhr
JPH06335202A (ja) * 1993-05-25 1994-12-02 Fuji Electric Co Ltd 全閉外扇形回転電機
EP0654097B1 (fr) * 1993-06-04 1997-09-17 Maschinenfabrik Rieter Ag Ensemble de cylindres-etireurs
JP3548330B2 (ja) * 1996-04-09 2004-07-28 エンシュウ株式会社 主軸のベアリング冷却装置
JPH109276A (ja) * 1996-06-24 1998-01-13 Yaskawa Electric Corp 回転電機の軸受冷却装置
DE19726258C2 (de) * 1996-07-01 2001-10-04 Barmag Barmer Maschf Galetteneinheit zum Führen und Fördern eines Fadens
CH692954A5 (de) * 1997-11-28 2002-12-31 Barmag Barmer Maschf Galette zum Fördern und Führen eines laufenden synthetischen Fadens.
JPH11193826A (ja) * 1997-12-26 1999-07-21 Murata Mach Ltd 加熱ローラの軸受冷却装置
JP4003343B2 (ja) * 1999-04-07 2007-11-07 いすゞ自動車株式会社 軸受冷却装置
JP3374825B2 (ja) * 2000-02-10 2003-02-10 村田機械株式会社 糸条加熱処理ローラ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0212603A3 *

Also Published As

Publication number Publication date
JP2004506145A (ja) 2004-02-26
CN100396832C (zh) 2008-06-25
WO2002012603A2 (fr) 2002-02-14
WO2002012603A3 (fr) 2002-04-25
AU2001293713A1 (en) 2002-02-18
CN1443255A (zh) 2003-09-17

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