SE467213B - DEVICE FOR A SPINNING MACHINE WITH DRIVING AND STORAGE FOR AN AXELLOES OPEN-END SPIN NUTTER - Google Patents

DEVICE FOR A SPINNING MACHINE WITH DRIVING AND STORAGE FOR AN AXELLOES OPEN-END SPIN NUTTER

Info

Publication number
SE467213B
SE467213B SE9002398A SE9002398A SE467213B SE 467213 B SE467213 B SE 467213B SE 9002398 A SE9002398 A SE 9002398A SE 9002398 A SE9002398 A SE 9002398A SE 467213 B SE467213 B SE 467213B
Authority
SE
Sweden
Prior art keywords
core
winding
stator
spinning rotor
bearing
Prior art date
Application number
SE9002398A
Other languages
Swedish (sv)
Other versions
SE9002398L (en
SE9002398D0 (en
Inventor
B Lind
Original Assignee
Skf Ab
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 Skf Ab filed Critical Skf Ab
Priority to SE9002398A priority Critical patent/SE467213B/en
Publication of SE9002398D0 publication Critical patent/SE9002398D0/en
Priority to PCT/EP1991/001275 priority patent/WO1992001096A1/en
Priority to EP91912412A priority patent/EP0538304B1/en
Priority to JP91511840A priority patent/JPH05508888A/en
Priority to DE59105467T priority patent/DE59105467D1/en
Publication of SE9002398L publication Critical patent/SE9002398L/en
Publication of SE467213B publication Critical patent/SE467213B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D01H4/12—Rotor bearings; Arrangements for driving or stopping
    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0692—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for axial load only
    • 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
    • F16C37/005—Cooling of bearings of magnetic bearings
    • 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
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

A shaftless open-end spinning rotor, designed as the armature an axial field motor, and a stator have plane, parallel bearing surfaces for a combined magnetic/gas bearing. To ensure smooth running in critical operating conditions because the range of operating rpm must lie above the critical rpm, a gas distributor and supporting and centering magnets are incorporated in and, respectively, disposed symmetrically about the axis and centrally in the stator (2), which has a grooveless, hollow cylindrical core (5) and a multiphase winding (19) of flat cross-section arranged between the core (5) and the spinning rotor (1). The faces of the winding (19) opposite the open-end spinning rotor (1), the gas distributor and the supporting and centuring magnets form the plane bearing surface on the drive side.

Description

15 20 25 30 35 467 213 2 Ytterligare fördelar framgår ur följande beskrivning av ett utföringsexempel. 15 20 25 30 35 467 213 2 Further advantages appear from the following description of an exemplary embodiment.

Figuren visar: Fig. 1 Snitt genom anordningen; Pig: 2 Lageryta hos anordningen; Fig. 3 Utsnitt ur centrum av lagerytan.The figure shows: Fig. 1 Section through the device; Pig: 2 Bearing surface of the device; Fig. 3 Section from the center of the bearing surface.

Anordningen för drivning och lagring av en öppen-änd-spinn- rotor består i huvudsak av följande konstruktionsdelar: Statorn 2 med det integrerade och kombinerade gaslagret 3 och huset 4, vilket uppbär statorn 2 och på icke framställt sätt utgör anslutningen till spinnerimaskinen.The device for driving and storing an open-end spinning rotor mainly consists of the following structural parts: The stator 2 with the integrated and combined gas bearing 3 and the housing 4, which supports the stator 2 and in a non-manufactured manner forms the connection to the spinning machine.

Den hålcylindriska, spårlösa kärnan 5 hos statorn 2 är vid sin yttercylinder tätt omsluten av en kylring 6; båda är sammanlindade. I det inre av den lindade kärnan 5 är en gasfördelningscylinder på så sätt insatt och företrädesvis fastlimmad, att dess frontyta 8 ligger i lindningsfrontytans 9 plan. Fogspalterna och spalterna mellan de enskilda lind- ningarna är företrädesvis ingjutna med en värmeledande gjutmassa till en plan lageryta 10 med hög ytgodhet. De i lagerytan 10 mynnande dyshålen ll är symmetriskt anordnade tätt vid kanten av frontytan 8 av gasfördelningscylindern.The hollow-cylindrical, traceless core 5 of the stator 2 is tightly enclosed at its outer cylinder by a cooling ring 6; both are intertwined. In the interior of the wound core 5 a gas distribution cylinder is inserted and preferably glued in such a way that its front surface 8 lies in the plane of the winding front surface 9. The joint gaps and the gaps between the individual windings are preferably cast in with a heat-conducting casting mass to a flat bearing surface 10 with high surface goodness. The nozzle holes 11 opening into the bearing surface 10 are symmetrically arranged close to the edge of the front surface 8 of the gas distribution cylinder.

I centrum av frontytan 8 är skiv- och ringformade perma- nentmagneter insatta, scma hållar- och centreringsmagneter 12;13 koncentriskt med varandra och statoraxeln och med växlande polaritet och på radiellt avstånd samt på den från lagerytan 10 vända sidan förbundna medelst en okskiva 14.In the center of the front surface 8, disc and annular permanent magnets are inserted, holding and centering magnets 12; 13 concentrically with each other and the stator shaft and with varying polarity and at a radial distance and on the side facing away from the bearing surface 10 connected by means of a yoke disc 14.

Dessa magneter 12;13 verkar på kongruenta,dock omvänt pola- riserade magneter i spinnrotorn 1.These magnets 12; 13 act on congruent, however inverted polarized magnets in the spinning rotor 1.

Därigenom centreras spinnrotorn med hög styvhet på sin magnetiska styrníngsaxel och hålls i jämvikt med den motsatt riktade kraften hos tryckgasen._Därvid kan den tryckberoende i) 10 15 20 25 30 35 467 2"3 3 mycket smala lagerspalten 18 hos gas-magnetlagret 3 ställas in. Genom de planparallella lagerytorna 10 på anordningen och på spinnrotorn 1-kan spinnrotorn 1 i driftsvarvtalsom- rådet rotera radialstyrningskraftsfritt runt sin tyngd- drift fullständigt spinnrotorn 1 uppkomna obalanser. punktsaxel och under utjämna i Gummielement 17 eller fjäderstavar, vilka uppbär hela statorn 2 och den därpå medelst magneterna 12,13 styrningsstyvt lagrade spinnrotorn 1 fjädrande i huset 4, dämpar även spinnrotorsvängningar, t.ex vid egenkritiska varvtal. De -via den magnetiska styrningen överförda svängningarna reduceras så mycket genom material att det varvtalsområdet kan genomlöpas utan problem. eller friktionsdämpning, kritiska Luftfriktionsvärmet avledes från lagerspalten 18 via kärnan 5 och via lindningen 19 till kylringen 6, vilken uppvisar ett ringspår, genom vilket via en lindningsdelarfläns 20 till- och bortförd kylvätska ledes.As a result, the spinning rotor is centered with high rigidity on its magnetic control shaft and is kept in equilibrium with the opposite direction of the compressed gas. The pressure-dependent i) 10 15 20 25 30 35 467 2 "3 very narrow bearing gap 18 of the gas-magnetic bearing 3 can be adjusted Through the plane-parallel bearing surfaces 10 on the device and on the spinning rotor 1, the spinning rotor 1 in the operating speed range can rotate radially control-force-free around its gravitational drive completely the imbalances arising on the spinning rotor 1 and point in then, by means of the magnets 12, 13, the spinning rotor 1, which is resiliently mounted in a control manner in the housing 4, also dampens spin rotor oscillations, for example at self-critical speeds.The oscillations transmitted by the magnetic guide are reduced so much by material that critical The air friction heat is dissipated from the bearing gap 18 via the core 5 and vi a the winding 19 to the cooling ring 6, which has an annular groove, through which coolant supplied and removed via a winding divider flange 20 is led.

Genom lindningsdelarflänsarna 20 uppstår mellan lindnings- avsnitten på framsidan av kärnan 5 kilformiga spalter 21, i vilka magnetiska sensorer 22 är insatta och hopgjutna med lagerytan 10. Sensorerna 22 övertäckes av drivmagneterna 23 hos spinnrotorn och. kan därvid detektera dess läge och tjänar som styrning av en flerfasig lindning.Through the winding part flanges 20, wedge-shaped gaps 21 arise between the winding sections on the front of the core 5, in which magnetic sensors 22 are inserted and cast with the bearing surface 10. The sensors 22 are covered by the drive magnets 23 of the spinning rotor and. can thereby detect its position and serves as a control of a multiphase winding.

Genom användning av' amorfa ferromagnetiska material för ringbandkärnan minimeras de elektromagnetiska förlusterna.By using amorphous ferromagnetic materials for the ring band core, the electromagnetic losses are minimized.

Den magnetiska spalten mellan kärnan 5 och spinnrotorn 1 kan reduceras genom en flackprägling av lindningen 19 i stator- frontytan och därmed sänka det magnetiska motståndet.The magnetic gap between the core 5 and the spinning rotor 1 can be reduced by a flat embossing of the winding 19 in the stator front surface and thereby lowering the magnetic resistance.

I stället för den beskrivna kollektorlösa likströmsmotorn som axialfältmotor kan även en reluktansmotor eller asyn- kronmotor användas.Instead of the described collectorless DC motor as an axial field motor, a reluctance motor or asynchronous motor can also be used.

Claims (8)

10 15 20 25 30 35 467 213 4 PATENTKRAV10 15 20 25 30 35 467 213 4 PATENT CLAIMS 1. Anordning för en spinnmaskin med drivning och lagring för en axellös öppen-änd-spinnrotor bildande rotorn hos en axialfältsmotor, varvid anordningen omfattar statorn hos axialfältsmotorn och ett kombinerat magnet-gaslager med ~ planparallella lagerytor, k ä n n e t e c k n a d d ä r a v, att i statorn (2) vilken har en spårlös, hålcylindrisk kärna (5) och en i den magnetiska spalten mellan kärnan (5) och spinnrotorn (1) utförd lindning (14) med plant tvärsnitt vilken, är flerfasig och företrädesvis symmetrisk, är en axiellt symmetrisk gasfördelningsanordning för lagret liksom centrerat anordnade hållar- och centreringsmagneter (l2,13) integrerade på ett sådant sätt att de frontytor hos lind- ningen (14), gasfördelningsanordningen samt hållar- och centreringsmagneterna (l2,13) vilka är vända mot öppen-änd- spinnrotorn (1) bildar drivsidans plana lageryta (10).Device for a spinning machine with drive and storage for a shaftless open-end spinning rotor forming the rotor of an axial field motor, the device comprising the stator of the axial field motor and a combined magnetic-gas bearing with planar parallel bearing surfaces, characterized in that in the stator (2) which has a grooveless, hollow cylindrical core (5) and a winding (14) formed in the magnetic gap between the core (5) and the spinning rotor (1) with a flat cross section which, is multiphase and preferably symmetrical, is an axially symmetrical gas distribution device for the bearing as well as centrally arranged holding and centering magnets (12,13) integrated in such a way that the front surfaces of the winding (14), the gas distribution device and the holder and centering magnets (12,13) which face the open-end spinneret (1) forms the flat bearing surface of the drive side (10). 2. Anordning enligt krav 1, k ä n n e t e c k n a d d ä r a v, att i innerutrymmet av' den spårlösa hålcylindriska och toroidalt lindade kärnan (5) är insatt en gasfördelnings- cylinder (7), vilken i sitt centrum uppbär håll- och cen- treringsmagneterna (l2,13) samt tätt invid sin ytterdiameter uppvisar symmetriskt anordnade i lagerytan (10) mynnande dyskanaler (ll) och att fog- och lindningsspalter är ut- fyllda med värmledande gjutmassa.2. Device according to claim 1, characterized in that a gas distribution cylinder (7) is inserted in the inner space of the trackless hollow cylindrical and toroidally wound core (5), which in its center carries the holding and centering magnets ( l2,13) and close to its outer diameter have symmetrically arranged nozzle channels (ll) arranged in the bearing surface (10) and that joint and winding gaps are filled with heat-conducting casting compound. 3. Anordning enligt kraven 1 eller 2 k ä n n e t e c k n a d att hållar- och centreringsmagneterna (l2,13) består av koaxiella och på radiellt avstånd anordnade skiv>och ring- formade permanentmagneter av växlande polaritet, vilka på den från lagerytan (10) vända sidan är förbundna genom en okskiva (14) och vilka samverkar med motsvarande magnetpar d ä r a v, av motsatt polaritet i spinnrotorn (1). 10 15 20 25 30 467 213 5Device according to Claim 1 or 2, characterized in that the holding and centering magnets (12, 13) consist of coaxial and radially spaced disk> and annular permanent magnets of varying polarity, which on the side facing away from the bearing surface (10) are connected by a yoke disk (14) and which cooperate with corresponding magnetic pairs thereof, of opposite polarity in the spinning rotor (1). 10 15 20 25 30 467 213 5 4. Anordning enligt ett av kraven 1 till 3, k ä n n e t e c k n a d d ä r a v, - A-»a att en kylring (6) med ringspår och med lindningsdelarflän- sar (20) tätt omsluter kärnan (5) vid dess cylindermantel samt är sammanlindad med denna och att kylvätska till- och bortföres via åtminstone en av lindningsdelarflänsarna (20)Device according to one of Claims 1 to 3, characterized in that a cooling ring (6) with ring grooves and with winding part flanges (20) tightly encloses the core (5) at its cylinder shell and is coiled. with this and that coolant is supplied and removed via at least one of the winding part flanges (20) 5. Anordning enligt ett av kraven 1 till 4, k ä n n e t e c k n a d d ä r a v, _ att magnetiska sensorer (22) är insatta i kilformiga spalter (21), ingjutna med lagerytan (10). vilka bildas av lindningsdelarflänsar (20), och ärDevice according to one of Claims 1 to 4, characterized in that magnetic sensors (22) are inserted in wedge-shaped slots (21), cast in with the bearing surface (10). which are formed by winding divider flanges (20), and are 6. Anordning enligt ett av kraven 1 till 5, k ä n n e t e c k n a d d ä r a v, att gummielement (17) eller fjäderstavar är anordnade för elastisk upphängning av statorn (2) och att ledningarna för tryckgas, kylmedel och ström till statorn (2) är böjligt utformade.Device according to one of Claims 1 to 5, characterized in that rubber elements (17) or spring rods are arranged for elastic suspension of the stator (2) and that the lines for pressurized gas, coolant and current to the stator (2) are flexible. designed. 7. Anordning enligt ett av kraven 1 till 6, k ä n n e t e c k n a d d ä r a v, att kärnan (5) är utformad som ringbandkärna av amorft, ferromagnetiskt material med minsta förluster eller som ring av sintrad magnetkeramik.Device according to one of Claims 1 to 6, characterized in that the core (5) is designed as a ring band core of amorphous, ferromagnetic material with the least losses or as a ring of sintered magnetic ceramics. 8. Anordning enligt ett av kraven 1 till 7, k ä n n e t e c k n a d d ä r a v, att en kollektorlös likströmsmotor, en reluktansmotor eller en asynkronmotor används som axialfältsmotor.Device according to one of Claims 1 to 7, characterized in that a collectorless DC motor, a reluctance motor or an asynchronous motor is used as the axial field motor.
SE9002398A 1990-07-10 1990-07-10 DEVICE FOR A SPINNING MACHINE WITH DRIVING AND STORAGE FOR AN AXELLOES OPEN-END SPIN NUTTER SE467213B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9002398A SE467213B (en) 1990-07-10 1990-07-10 DEVICE FOR A SPINNING MACHINE WITH DRIVING AND STORAGE FOR AN AXELLOES OPEN-END SPIN NUTTER
PCT/EP1991/001275 WO1992001096A1 (en) 1990-07-10 1991-07-09 Drive and bearing for a shaftless open-end spinning rotor
EP91912412A EP0538304B1 (en) 1990-07-10 1991-07-09 Drive and bearing for a shaftless open-end spinning rotor
JP91511840A JPH05508888A (en) 1990-07-10 1991-07-09 Equipment and bearings for shaftless open-end spinning rotors
DE59105467T DE59105467D1 (en) 1990-07-10 1991-07-09 DRIVE AND BEARING FOR A SHAFHLESS OE SPINNING ROTOR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9002398A SE467213B (en) 1990-07-10 1990-07-10 DEVICE FOR A SPINNING MACHINE WITH DRIVING AND STORAGE FOR AN AXELLOES OPEN-END SPIN NUTTER

Publications (3)

Publication Number Publication Date
SE9002398D0 SE9002398D0 (en) 1990-07-10
SE9002398L SE9002398L (en) 1992-01-11
SE467213B true SE467213B (en) 1992-06-15

Family

ID=20379975

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002398A SE467213B (en) 1990-07-10 1990-07-10 DEVICE FOR A SPINNING MACHINE WITH DRIVING AND STORAGE FOR AN AXELLOES OPEN-END SPIN NUTTER

Country Status (5)

Country Link
EP (1) EP0538304B1 (en)
JP (1) JPH05508888A (en)
DE (1) DE59105467D1 (en)
SE (1) SE467213B (en)
WO (1) WO1992001096A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207673C1 (en) * 1992-03-11 1993-03-11 Skf Textilmaschinen-Komponenten Gmbh, 7000 Stuttgart, De
DE4342539A1 (en) * 1993-12-14 1995-06-22 Skf Textilmasch Komponenten Shaftless rotor for open end spinning
DE4409992A1 (en) * 1994-03-23 1995-09-28 Skf Textilmasch Komponenten Separate motor drive for shaftless rotor of an open end spinner
DE4411032A1 (en) * 1994-03-30 1995-10-05 Skf Textilmasch Komponenten Motor drive useful for a shaftless rotor in an open end spinner
DE4421406A1 (en) * 1994-06-18 1995-12-21 Skf Textilmasch Komponenten Motor drive for shaftless rotor of an open end spinner
DE102020122250A1 (en) 2020-08-26 2022-03-03 Schaeffler Technologies AG & Co. KG Electrical machine assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2640111C2 (en) * 1976-09-07 1984-12-06 Teldix Gmbh, 6900 Heidelberg OE rotor spinning unit
DE3000357C2 (en) * 1980-01-07 1982-12-30 Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar Mechanical auxiliary bearing for magnetic storage
SE453419B (en) * 1985-02-04 1988-02-01 Skf Nova Ab DEVICE WITH AXIAL LAYERS WHICH STORAGE SITES INCLUDE MAGNETIC PARTIES
CA1295723C (en) * 1987-07-23 1992-02-11 Robert A. Golobic Gas bearings for gas lasers

Also Published As

Publication number Publication date
EP0538304B1 (en) 1995-05-10
WO1992001096A1 (en) 1992-01-23
JPH05508888A (en) 1993-12-09
EP0538304A1 (en) 1993-04-28
SE9002398L (en) 1992-01-11
DE59105467D1 (en) 1995-06-14
SE9002398D0 (en) 1990-07-10

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