US3779620A - Bearings for an open-end spinning turbine - Google Patents

Bearings for an open-end spinning turbine Download PDF

Info

Publication number
US3779620A
US3779620A US00235319A US3779620DA US3779620A US 3779620 A US3779620 A US 3779620A US 00235319 A US00235319 A US 00235319A US 3779620D A US3779620D A US 3779620DA US 3779620 A US3779620 A US 3779620A
Authority
US
United States
Prior art keywords
turbine shaft
shaft
turbine
bearing unit
bearing
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 - Lifetime
Application number
US00235319A
Other languages
English (en)
Inventor
F Stahlecker
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.)
Wilhelm GmbH
Original Assignee
Wilhelm GmbH
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 Wilhelm GmbH filed Critical Wilhelm GmbH
Application granted granted Critical
Publication of US3779620A publication Critical patent/US3779620A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the shafts of the supporting rollers at both sides of the turbine shaft extend parallel to the turbine shaft as seen in a top view, but as seen in a side view they are inclined about an axis extending transverse to and underneath the turbine shaft.
  • the present invention relates to a bearing unit for an open-end spinning turbine which is of the type in which the shaft of the turbine is radially supported within one or more wedge-shaped gaps which are formed between rotatable supporting or bearing rollers which are preferably provided with covers of plastic, and which is supported in one axial direction by a thrust bearing.
  • the shaft of the turbine When supported by bearings of this type, the shaft of the turbine may be driven directly by a driving element acting thereon, especially by a belt such as a tangential belt. It is, however, also possible to drive the turbine shaft by means of the supporting rollers in which case an additional pressure roller must be provided for maintaining the turbine shaft within the wedge-shaped gap between the supporting rollers and in engagement with the latter which in the first-mentioned case is done by the driving element which acts directly upon the turbine shaft.
  • a spinning turbine should not be movable in its axial direction relative to the yarn supply means, suitable provisions must be made to exert an axial force upon the turbine shaft which insures that the end of this shaft opposite to the end carrying the turbine will be pressed at all times firmly against a thrust bearing.
  • a driving element which has a slightly inclined surface engaging with the turbine shaft. If the turbine shafts of several spinning units are driven by a common drive belt, all of these shafts are mounted so as to extend at a suitable angle differing from a right angle to the direction of travel of the drive belt. This requires a considerable expense for properly mounting the turbine shafts and for driving the latter, the drive belt is also subjected to additional stresses.
  • the axial force which is produced by inclining the turbine shaft at such an angle to the direction of travel of the drive belt acts as a reactive force of the same value upon the belt which then has to be supported at one lateral side between the individual spinning units.
  • This is generally done by means of additional rollers which are provided with lateral guide flanges.
  • Such guide flanges exert, however, a considerable wear upon the adjacent lateral edge of the drive belt, a wear which may be often so strong that it will considerably reduce the normal length of service of the belt or cause its early destruction.
  • the invention provides that the shaft of at least one of two associated supporting rollers between which the wedge-shaped gap is formed in which the turbine shaft is rotatably supported extends at a small inclination to the turbine shaft, as seen in a direction transverse to the central axial plane of the wedge-shaped gap between the two associated supporting rollers and radially to the turbine shaft.
  • the axial thrust of the turbine shaft which is thus produced depends primarily upon the particular angle of the inclination of the shaft or shafts of the supporting roller or rollers and upon the coefficient of friction between the turbine shaft and the supporting rollers. This angle must therefore be accurately predetermined or accurately adjustable.
  • the shafts of all of the supporting rollers are inclined relative to the turbine shaft in the direction as stated above, but the shaft or shafts of the supporting roller or rollers at each side of the turbine shaft are inclined in a direction opposite to the direction of the shaft or shafts at the other side of the turbine shaft. Due to these opposite inclinations of the shafts of the supporting rollers, the effects of the latter upon the turbine shaft do not counteract but supplement each other. This permits the angles of inclination of these shafts relative to the turbine shaft to be made so small that, if several supporting rollers are provided at each side of and underneath the turbine shaft, these rollers may be mounted on a common shaft. Therefore, both shafts of the two sets of supporting rollers are then inclined in opposite directions to each other and preferably about a common axis which extends transverse to and underneath the turbine shaft.
  • At least the shaft of the supporting roller or rollers at one side of the turbine shaft is rotatably mounted in a bearing bracket which is pivotably adjustable about an axis which extends transverse to the turbine shaft.
  • This bearing bracket is preferably provided with a pointer which is associated with a stationary scale and permits the axial thrust of the turbine shaft to be accurately adjusted to the desired strength and to be indicated.
  • An additional feature of the invention consists in increasing the axial thrust of the turbine shaft by slightly inclining the driving or guide element which acts directly upon the turbine shaft in the direction toward the thrust bearing of this shaft.
  • this driving or guide element is only intended to produce a small component of the axial thrust, the stresses, if any, to which it will then be subjected will only slightly exceed the stresses to which it is normally subjected by its driving or guiding action.
  • the principal purpose of this feature is to compensate any inaccuracy of the desired axial thrust of the turbine shaft as produced by the supporting rollers which may be due to small tolerances in the manufacture of these rollers.
  • the invention provides that the brake linings of this brake and/or the turbine shaft are made of such a shape that when these brake linings are pressed upon the turbine shaft a force component of this pressure will also be exerted upon this shaft which tends to shift the latter in the direction toward the thrust bearing.
  • this may be attained by providing each of the parts of the turbine shaft upon which the brake linings are applied with a helically shaped groove, which according to another embodiment of the invention at least one ring is secured upon the turbine shaft and one side of this ring opposite to the side facing the thrust bearing is made of a conical shape.
  • the edge of one of the brake linings facing the thrust bearing slides along this conical side of the ring and thereby exerts an axial thrust upon the turbine shaft in the direction toward the thrust bearing.
  • FIG. 1 shows a side view of a bearing unit according to the invention
  • FIG. 2 shows a top view of the bearing unit according to FIG. 1;
  • FIG. 3 shows a side view of a bearing unit according to another embodiment of the invention.
  • FIG. 4 shows a side view, partly in section, of a bearing unit according to another embodiment of the invention.
  • FIG. 5 shows a side view, partly in section, of a bearing unit according to a further embodiment of the invention
  • FIG. 6 shows a side view of a bearing unit according to a modification of the unit as shown in FIG. 5.
  • FIGS. 1 and 2 only show parts of an open-end spinning unit, namely, the spinning turbine 1, its shaft 2, two pairs of supporting or bearing rollers 3, 4, 5 and 6 for the shaft 2, a drive belt 7 which acts directly upon the turbine shaft 2, and a thrust bearing 8 upon which the crowned end of shaft 2 bears in the axial direction of this shaft.
  • the two pairs of supporting rollers 3 to 6 are mounted relative to each other so as to form wedges haped gaps between the opposite rollers 3 and 5 as well as 4 and 6 in which the turbine shaft 2 is radially supported.
  • drive belt 7 which is only indicated in dotted lines in FIG. 2 also maintains each turbine shaft 2 in a radial direction within the wedge-shaped gaps between the supporting rollers 3 to 6.
  • this thrust bearing 8 comprises a bearing plate 9 upon which the crowned end of shaft 2 engages.
  • a feed pipe 10 terminates through which a lubricant, for example, oil may be constantly supplied to the crowned end of shaft 2, preferably from a common supply for all of the spinning units of the machine.
  • a lubricant for example, oil may be constantly supplied to the crowned end of shaft 2, preferably from a common supply for all of the spinning units of the machine.
  • an oil collecting trough 11 is provided which extends in the longitudinal direction of the machine transversely to several adjacent spinning units.
  • the required axial thrust of the turbine shaft 2 in the direction toward the thrust bearing 8 may be attained in this embodiment of the invention by the particular construction and arrangement of the radial bearings of the shaft. Therefore aside from the pressure which the drive belt has to exert upon the turbine shaft 2, so as to drive the same and to press it upon the supporting rollers 3 to 6, this belt will not be subjected to additional stresses for producing an axial thrust of shaft 2.
  • the two pairs of supporting rollers 3, 4 and 5, 6 are mounted at the opposite sides of and underneath the turbine shaft 2 on common shafts l2 and 13, respectively, the bearings of which are located between the rollers of each pair.
  • This angle a between shafts 12 and 13 is made of such a size that all supporting rollers 3 to 6 will exert a force upon the turbine shaft 2 which tends to shift the latter in its axial direction toward the thrust bearing 8.
  • the inclination of shafts 12 and 13 in one direction or the other depends upon the direction of travel of the drive belt 7 which in FIG. 2 is assumed to extend in the direction of the arrow 15.
  • shaft 12 which, as seen in this direction 15, is located in front of the turbine shaft 2 is turned in the clockwise direction about the axis 14, while the other shaft 13 which is located behind the turbine shaft 2 is turned in the counterclockwise direction about tha axis 14.
  • the strength of the axial thrust of the turbine shaft 2 toward the thrust bearing 8 depends upon the angle a, the coefficient of friction between the tread layers of plastic on the rollers 3 to 6 and shaft 2, the pressure which the drive belt 7 exerts upon shaft 2 and the speed at which the latter is driven. Since all of these values may be very accurately determined, the axial thrust of shaft 2 may also be very accurately adjusted to a value which remains practically constant at all times.
  • the drive belt 7 will have such a direction of travel relative to the direction of the turbine shaft 2 that it will under no circumstances produce an axial thrust of shaft 2 which is opposed to the axial thrust which is produced by the supporting rollers. Therefore, the angle B between the turbine shaft 2 and the traveling drive belt 7 behind its engagement with shaft 2 and at the side of the belt facing the thrust bearing 8 should have a value not exceeding 90". If this angle ,8 is made smaller than 90, the drive belt'7 will produce an additional axial thrust of the turbine shaft 2 in the direction toward the thrust bearing 8 which increases the thrust which is produced by the supporting rollers 3 to 6.
  • FIG. 3 which shows an embodiment of the invention which in principle corresponds to the embodiment as shown in FIGS. 1 and 2 illustrates an apparatus of a very simple construction for adjusting the roller shafts 12 and 13 to the desired inclinations relative to the turbine shaft 2.
  • the bearing of at last one of the shafts 12 or 13 is secured to an annular bearing bracket 16 which is pivotably mounted on a stationary part 17 of the machine and adapted to be locked to the latter in the particular position to which it is pivoted by means of a screw 20 which extends through an elongated hole 19 in an arm on the bearing bracket 16 and is screwed into the machine part 17.
  • This scale 22 may, however, also form a separate element which is adjustably mounted on the machine part 17 so as to permit a basic adjustment of this scale 22 by the manufacturer of the machine in accordance with the measurements of the axial thrust of the turbine shaft 2 which may be made by a special instrument on the thrust bearing 8. If subsequently in the spinning factory the roller shafts 12 and 13 of all spinning units of a spinning machine are adjusted so as to have the same angle a relative to the turbine shafts 2, the axial thrust of all turbine shafts will also have the same strength.
  • FIG. 4 illustrates an embodiment of the invention in which the wedge-shaped gap for receiving the turbine shaft 2 is formed between two longer supporting rollers 23 and 24 which are rotatably mounted at both sides of and underneath the turbine shaft 2.
  • the shafts 12 and 13 of these supporting rollers 23 and 24 which are likewise covered with layers of a resilient plastic are inclined relative to each other in the same manner as previously described so that an axial thrust will be exerted upon the turbine shaft 2 in the direction toward the thrust bearing 8.
  • the turbine shaft 2 is in this case driven indirectly by means of the supporting rollers 23 and 24 the shafts l2 and 13 of which are for this purpose provided with rollerlike drive pulleys 25 along which a drive belt 26 is adapted to run.
  • each of the shafts 12 and 13 is inclined in one or the other direction relative to the turbine shaft 2 depends also in this case upon the direction of rotation of the spinning turbine 1 an its shaft 2.
  • the angles at which these shafts 12 and 13 are actually inclined are again considerably smaller than those as illustrated.
  • the supporting rollers 23 and 24 are again provided with covers of a resilient plastic which insure that the contact between the turbine shaft 2 and the two supporting rollers 23 and 24 will not be merely pointlike but along the entire length of these rollers.
  • the apparatus according to FIG. 4 is provided with a pressure roller 27 which presses the turbine shaft from above into the wedge-shaped gap.
  • This pressure roller 27 is rotatably mounted on one end of an arm 28 the other end of which is pivotably mounted on a turbine housing 29 and is acted upon by a spring 41, which presses the roller 27 with the required force upon the turbine shaft 2.
  • a thrust bearing 8 is provided which comprises a housing in which a bearing disk 31 on which the crowned end of the turbine shaft 2 is supported is adapted to revolve about a shaft 30.
  • This bearing disk 31 is maintained in a fixed position in the axial direction of the turbine shaft 2 by means of an adjustable setscrew 32.
  • the lower part of this housing forms an oil bath in which the bearing disk 31 is rotatable.
  • the cover 33 of the housing carries several sealing disks 34 which are provided with bores through which the turbine shaft 2 extends. These sealing disks 34 prevent the oil from passing out of the housing and they also serve as a support for carrying the shaft 30 so that, when the cover 33 is removed from the housing after the turbine shaft 2 has been withdrawn, shaft 30 and the bearing disk 31 thereon will likewise be removed from the housing.
  • the brake which may be applied upon the turbine shaft 2 for stopping the spinning turbine 1 may be of a conventional construction of which in FIG. 5 only the brake linings 36 are illustrated which are secured to one or a pair of leaf springs 35.
  • the two parts of the turbine shaft 2 upon which these brake linings 36 may be applied are provided with grooves 37 which are cut in the form of helical threads and produce a screwlike effect and thereby an axial thrust of the turbine shaft 2 in the direction toward the thrust bearing 8 when the brake linings 36 are pressed against the turbine shaft.
  • the outer edges of these screw threads are preferably chamfered.
  • FIG. 6 illustrates another embodiment of the invention which is provided with a brake which aside from its braking action is adapted to maintain the turbine shaft 2 in its proper position and to produce the required axial thrust of this shaft against its thrust bearing 8 during the interval in which the drive belt 7 is being lifted off this shaft and until the latter has been stopped completely.
  • This brake as such may likewise be of a conventional construction and therefore only its brake linings 36 and a leaf spring 35 on which they are mounted are illustrated in FIG. 6.
  • the abovementioned purpose of this brake is attained by securing a ring 39 on the turbine shaft 2 which is provided on is front side facing the turbine l with a conical surface.
  • This ring 39 has an outer diameter which is substantially equal to that of the hub or flange 38 on the turbine 1 so that, after the turbine shaft 2 has been stopped and the brake linings 36 have been withdrawn from the latter, the turbine 1 together with its shaft 2 may be easily pulled forwardly out of the turbine housing without danger that the plastic covers on the supporting rollers 3 to 6 might thereby be damaged.
  • the spinning turbine is driven only in one direction. This is a condition which for practical reasons is inveriably followed in open-end spinning turbines.
  • the desired value of the axial thrust of the turbine shaft depends upon the size of the spinning turbine and the strength of the vacuum in the housing surrounding the turbine and lies between 300 and 800 p.
  • the angle of inclination a of the shafts of the supporting rollers may, however, also be made of such a size that the axial thrust of the turbine shaft will exceed these values.
  • a bearing unit for an open-end spinning turbine having a turbine shaft, a spinning turbine secured to one end of said shaft, a thrust bearing upon which the other end of said shaft is adapted to engage, at least one pair of supporting rollers having shafts, mounting means for mounting said roller shafts underneath and at opposite sides of said turbine shaft so that a wedgeshaped gap is formed between the peripheral surfaces of said rollers in which said turbine shaft is located and rotatable on said rollers, driving and guide means normally acting directly upon said turbine shaft for driving the same and for maintaining it in contact with said rollers, said shaft of at least one of said rollers extending at an inclination relative to said turbine shaft as seen in a direction transverse to the central longitudinal plane of said wedge-shaped gap and radially to said turbine shaft, whereby when said turbine shaft is driven, said roller shaft exerts an axial thrust upon said turbine shaft which maintains said other end of said turbine shaft in constant engagement with said thrust bearing.
  • roller shaft at both sides of said turbine shaft extend at similar inclinations relative to said turbine shaft but are inclined in opposite directions to each other.
  • roller shafts at both sides of said turbine shaft are inclined about a common axis extending underneath and transverse to the said turbine shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00235319A 1971-03-17 1972-03-16 Bearings for an open-end spinning turbine Expired - Lifetime US3779620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2112913A DE2112913B2 (de) 1971-03-17 1971-03-17 Lagerung der Spinnturbine eines Offen-End-Spinnaggregates

Publications (1)

Publication Number Publication Date
US3779620A true US3779620A (en) 1973-12-18

Family

ID=5801864

Family Applications (1)

Application Number Title Priority Date Filing Date
US00235319A Expired - Lifetime US3779620A (en) 1971-03-17 1972-03-16 Bearings for an open-end spinning turbine

Country Status (5)

Country Link
US (1) US3779620A (it)
JP (1) JPS5332409B1 (it)
DE (1) DE2112913B2 (it)
GB (1) GB1358966A (it)
IT (1) IT951045B (it)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938312A (en) * 1973-09-21 1976-02-17 John Michael Noguera Yarn spinning apparatus
US4041688A (en) * 1974-08-10 1977-08-16 Fritz Stahlecker Bearing means for spinning rotors of an open-end spinning machine
US4149365A (en) * 1976-05-01 1979-04-17 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Arrangement for preventing axial displacement of spinning rotor spindle
US4186548A (en) * 1977-04-14 1980-02-05 Fritz Stahlecker Bearing for the spinning rotor of an open-end spinning assembly
US4653265A (en) * 1984-07-04 1987-03-31 Fritz Stahlecker Open-end spinning machine having a plurality of spinning units and a movable servicing apparatus
US4676673A (en) * 1983-07-05 1987-06-30 Fritz Stahlecker Bearing disk construction for supporting a spinning rotor shaft of an open-end spinning machine
US4713932A (en) * 1986-05-10 1987-12-22 Fritz Stahlecker Supporting disk for a supporting-disk bearing of an open-end spinning machine
US5359846A (en) * 1991-07-29 1994-11-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Spinning apparatus of rotor type open-end spinning unit and rotor driving method
US5551226A (en) * 1995-09-01 1996-09-03 Richard M. Keir Disk for open end spinning
US5592807A (en) * 1994-07-06 1997-01-14 Rieter Ingolstadt Spinnereimaschinenbau Ag Bearing arrangement for an open-end spinning rotor
US6220761B1 (en) 1998-05-29 2001-04-24 Rieter Ingolstadt Spinnereimaschinenbau Ag Bearing arrangement with cooling groove for an open-end spin rotor using support disks
CN108972208A (zh) * 2018-07-18 2018-12-11 杭州科技职业技术学院 一种钢轨焊缝抛光机

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324129A1 (de) * 1983-07-05 1985-01-17 Fritz 7347 Bad Überkingen Stahlecker Lagerung und antrieb fuer einen spinnrotor einer offenend-spinnvorrichtung
US5178473A (en) * 1983-11-25 1993-01-12 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Supporting-disk bearing
DE3342768A1 (de) * 1983-11-25 1985-06-05 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Stuetzscheibenlager
DE3346843A1 (de) * 1983-12-23 1985-07-11 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offenend-rotorspinnvorrichtung
DE3826177C2 (de) * 1988-08-02 1993-10-21 Rieter Ingolstadt Spinnerei Offenend-Spinnvorrichtung
KR910009539B1 (ko) * 1989-08-17 1991-11-21 배계환 고속회전축 지지장치
DE19717737B4 (de) * 1997-04-26 2008-02-28 Oerlikon Textile Gmbh & Co. Kg Spinnboxrahmen für eine Offenend-Spinnvorrichtung
DE19719279A1 (de) * 1997-05-07 1998-11-12 Schlafhorst & Co W Offenend-Spinnvorrichtung
DE102006041639A1 (de) * 2006-09-05 2008-03-13 Schaeffler Kg Lageranordnung für eine schnelldrehende Welle
DE102013106687A1 (de) * 2013-06-26 2014-12-31 Maschinenfabrik Rieter Ag Axiallager für einen auf Stützrollen gelagerten Schaft eines Rotors einer Rotorspinnmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974964A (en) * 1908-12-22 1910-11-08 Fellner & Ziegler Method of and means for supporting rotary drums.
US2582563A (en) * 1946-02-14 1952-01-15 Frederick B Romero Marine bushing
US2617694A (en) * 1950-03-07 1952-11-11 Gehre Hans Bearing arrangement for horizontal rotor shafts
US2828938A (en) * 1954-07-30 1958-04-01 Roesch Adolf Turbine spindle bearing
US3482386A (en) * 1967-01-25 1969-12-09 Palitex Project Co Gmbh Spindle bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974964A (en) * 1908-12-22 1910-11-08 Fellner & Ziegler Method of and means for supporting rotary drums.
US2582563A (en) * 1946-02-14 1952-01-15 Frederick B Romero Marine bushing
US2617694A (en) * 1950-03-07 1952-11-11 Gehre Hans Bearing arrangement for horizontal rotor shafts
US2828938A (en) * 1954-07-30 1958-04-01 Roesch Adolf Turbine spindle bearing
US3482386A (en) * 1967-01-25 1969-12-09 Palitex Project Co Gmbh Spindle bearing

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938312A (en) * 1973-09-21 1976-02-17 John Michael Noguera Yarn spinning apparatus
US4041688A (en) * 1974-08-10 1977-08-16 Fritz Stahlecker Bearing means for spinning rotors of an open-end spinning machine
US4149365A (en) * 1976-05-01 1979-04-17 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Arrangement for preventing axial displacement of spinning rotor spindle
US4186548A (en) * 1977-04-14 1980-02-05 Fritz Stahlecker Bearing for the spinning rotor of an open-end spinning assembly
US4676673A (en) * 1983-07-05 1987-06-30 Fritz Stahlecker Bearing disk construction for supporting a spinning rotor shaft of an open-end spinning machine
US4653265A (en) * 1984-07-04 1987-03-31 Fritz Stahlecker Open-end spinning machine having a plurality of spinning units and a movable servicing apparatus
US4713932A (en) * 1986-05-10 1987-12-22 Fritz Stahlecker Supporting disk for a supporting-disk bearing of an open-end spinning machine
US5359846A (en) * 1991-07-29 1994-11-01 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Spinning apparatus of rotor type open-end spinning unit and rotor driving method
US5592807A (en) * 1994-07-06 1997-01-14 Rieter Ingolstadt Spinnereimaschinenbau Ag Bearing arrangement for an open-end spinning rotor
US5551226A (en) * 1995-09-01 1996-09-03 Richard M. Keir Disk for open end spinning
US6220761B1 (en) 1998-05-29 2001-04-24 Rieter Ingolstadt Spinnereimaschinenbau Ag Bearing arrangement with cooling groove for an open-end spin rotor using support disks
CN108972208A (zh) * 2018-07-18 2018-12-11 杭州科技职业技术学院 一种钢轨焊缝抛光机

Also Published As

Publication number Publication date
GB1358966A (en) 1974-07-03
DE2112913B2 (de) 1975-02-27
JPS5332409B1 (it) 1978-09-08
IT951045B (it) 1973-06-30
DE2112913A1 (de) 1972-10-05

Similar Documents

Publication Publication Date Title
US3779620A (en) Bearings for an open-end spinning turbine
US4713932A (en) Supporting disk for a supporting-disk bearing of an open-end spinning machine
US3877212A (en) Apparatus for driving and supporting a spinning element
JPH0153363B2 (it)
JPS6269833A (ja) 水平に配設されたオ−プンエンド精紡ロ−タ−に対する軸受並びに駆動装置
US3811258A (en) Twisting devices for filaments, especially for textile filaments
CN1274302A (zh) 纸浆精炼的控制系统及方法
JPS6249499B2 (it)
JP2001500462A (ja) ヤーン張力装置および装置を備えた織機
US3813826A (en) Spindle support assembly in a glass plate edge grinding machine
US3804477A (en) Centrifugal bearing preload mechanism
CN105697695A (zh) 一种具有张紧功能的收割机风扇调速装置及调速方法
US2737820A (en) Variable speed friction drive device
US4502272A (en) Apparatus for making a yarn
US4030372A (en) Driving method for tangential belt and apparatus therefor
US5730532A (en) Bearing arrangement for an open-end spinning device
US3604162A (en) Grinders for helical cutoff knives
US3180074A (en) High speed spindle apparatus
GB2099465A (en) False-twisting apparatus for falsetwisting yarns
EP0026161A1 (en) Rotating ring
US3667292A (en) Device for checking whether each of running yarns is twisted at the standard turns per minute
US3718050A (en) Apparatus for rotating spindle at high speed
US3669369A (en) Winding shaft
CN210134206U (zh) 一种送纬调节器
US5592807A (en) Bearing arrangement for an open-end spinning rotor