US3838560A - Bearing unit for open-end spinning turbines - Google Patents

Bearing unit for open-end spinning turbines Download PDF

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Publication number
US3838560A
US3838560A US00205558A US20555871A US3838560A US 3838560 A US3838560 A US 3838560A US 00205558 A US00205558 A US 00205558A US 20555871 A US20555871 A US 20555871A US 3838560 A US3838560 A US 3838560A
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Prior art keywords
bearing
shaft
bearing unit
oil
housing
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US00205558A
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English (en)
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F Stahlecker
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Wilhelm Stahlecker GmbH
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Wilhelm Stahlecker GmbH
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Priority claimed from DE2061520A external-priority patent/DE2061520B2/de
Priority claimed from DE2061462A external-priority patent/DE2061462C3/de
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    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • 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

  • ABSTRACT A high-speed open-end spinning turbine with a horizontal shaft and a thrust bearing for the end of this shaft within a closed oil container and with means for insuring that during the operation of the turbine this end of the shaft and its point of engagement with the thrust bearing within the oil container will always be moistened with oil from the lower part of the container.
  • the present invention relates to a bearing unit for one or more open-end spinning turbines each of which has a substantially horizontal shaft and a thrust bearing engaging upon one end of the shaft and acting in the axial direction upon the latter.
  • the invention relies upon the fact that in most cases the operation of spinning turbines absolutely requires the application of lubricants, and the invention therefore consists in providing the thrust bearing of the shaft of such a turbine within a closed bearing housing which contains a lubricant and into which the end of the turbine shaft projects while being sealed toward the outside.
  • a bearing structure prevents the lubricant from escaping from the bearing housing and it therefore insures that the lubricant will not impair the spinning operation and the material to be spun. It further permits the end of the turbine shaft and the thrust bearing to be made of conventional materials.
  • the bearing housing according to the invention preferably consists of a closed container the lower part of which is filled with oil and in which suitable means are provided for conveying the oil from this lower part of the container to the thrust bearing.
  • These conveying means are preferably provided on a suitable support which is either loosely inserted into the bearing housing or easily removable therefrom. This permits the spinning turbine to be easily assembled and disassembled without requiring the machine itself or the oil container which is preferably connected to the machine to be provided with any complicated or expensive means to permit the turbine to be disassembled or removed from the machine frame.
  • a very simple device for conveying the oil from the lower part of its container to the thrust bearing consists according to the invention of a material which is partly immersed into the oil bath and capable of soaking up the oil, and is held by a supporting device which extends at least to the area adjacent to the thrust bearing.
  • This material may, for example, consist of a wick which is held within a guide channel in a cage which may be loosely inserted into the bearing housing and may also serve as a support for a freely movable thrust-bearing disk which is interposed between and in engagement with the end of the turbine shaft and an abutment which is stationary but preferably adjustable in the axial direction of the turbine shaft.
  • the oil conveying means may, however, also consist of a layer of felt or the like which is inserted between two plates which are pivotably suspended within the bearing housing. Also in this embodiment of the invention the oil will pass through the felt layer to the thrust bearing. ln place of a wick or a felt layer it is also possible either to employ capillary tubes or to employ the vibration of these'pivotably suspended plates for conveying the oil to the thrust bearing.
  • wicks or the like in pivotable arms which are supported on the bearing disk or to provide supporting means for the bearing disk which are made of a porous material andtherefore gradually soak up the oil and then pass the same to the bearing plate or bearing disk to form a moist coating thereon.
  • Other embodiments of the invention are also of great advantage, for example, in the form of an angular plate the rear side of which is provided with a layer of felt and which itself forms a bearing plate. It is also possible to provide a wick or the like on a float which engages upon the lower side of the turbine shaft or of the thrust bearing. In some cases, especially for an automatic lubrication, it is also of advantage to provide an oil conveying device in the form of a spraying device which is operated by compressed air.
  • Another advantageous embodiment of the invention consists in P oviding a common oil container for the thrust bearings of a plurality of spinning turbines which may, for example, form two rows at the opposite sides of the machine, in which the oil cont'aineris disposed centrally of the machine between the two rows and in which the lubricating elements may be loosely inserted as independent units at the required positions into this common oil container.
  • the thrust bearing comprises a movable bear-ing plate, bearing disk or the like which permits the point of engagement of the tip of the end of the turbine shaft upon this bearing disk to change continuously so that the wear by the end of the shaft upon the bearing disk is not confined to a particular point on the surface of this disk but is distributed over a very large surface area of thebearing disk during the operation of the spinning turbine.
  • This movability of the bearing disk and of its point of engagement with the shaft end permits the bearing disk to be made of a conventional material which may be easily machined and be of a low cost.
  • This last-mentioned embodiment of the invention may be attained by providing means for positively driving the bearing plate or disk.
  • This may be done, for example, by designing the bearing plate in the form of a bar which is movable back and forth in its longitudinal direction and the surfaces of which may be moistened during this movement by an oil-saturated strip of felt or the like.
  • This construction has the advantage that the bearing plate will not be excessively worn during a long period of operation of the spinning turbine and that this operation will not cause any harmful noise.
  • By the provision of means for positively moving the bearing plate or disk it is also possible to make this plate of a suitable plastic which has good bearing or antifriction properties.
  • the bearing plate Since the point of engagement on the bearing plate by the end of the turbine shaft constantly changes, the bearing plate will not be affected at any point by a concentration of heat and the good antifriction properties of some of the plastics which are now available may be fully utilized.
  • a very advantageous embodiment of such a plastic bearing may be attained if the bearing plate consists of a traveling belt of plastic which is made, for example, of a material known under the trade mark Teflon and preferably serves as a thrust bearing for simultaneously supporting a plurality of turbine shafts.
  • Teflon a material known under the trade mark Teflon
  • the bearing plate in the form of a disk which is mounted on a driven shaft and may, if desired, be provided with a coating of plastic or be lubricated with oil or other lubricant during its rotation in a similar manner as the reciprocating bearing bar is lubricated which has been previously described.
  • Another very advantageous embodiment of the invention involving the use of a movable bearing plate consists in designing this plate in the form of a freely movable circular or annular disk which abuts eccentrically at one side upon the end of the turbine shaft and is supported at the other side by a stationary abutment which is preferably adjustable.
  • This eccentric arrangement of the turbine shaft relative to the bearing disk has the advantage that this disk does not have to be driven by any separate driving means but will be rotated at a low speed solely by its frictional engagement with the end of the turbine shaft.
  • This embodiment of the invention therefore also attains the advantage that the point of engagement between the end of the shaft and the surface of the bearing disk will be constantly shifted on this surface.
  • This oil bath preferably has a level lower than the axis of rotation of the bearing disk so that during its rotation only the lower part of this disk or ring will be immersed in the oil and the oil will be continuously taken along upwardly by the previously immersed part of the disk or ring and will then flow over the entire outer surfaces of the latter.
  • FIG. 1 shows a top view of a bearing unit according to the invention for an open-end spinning turbine the shaft of which is supported in its axial direction by a thrust bearing which is disposedwithin a closed oil container and in its radial directions by being rotatable within wedge-shaped gaps between two pairs of supporting rollers;
  • FIG. 2 shows a side view, partly in cross section, of the bearing unit according to FIG. 1;
  • FIG. 3 shows a cross section of a bearing and oil housing according to an embodiment of the invention which is similar to that as shown in FIGS. 1 and 2, but provided with a freely movable bearing disk and an oil wick which is held by a special wick support;
  • FIG. 4 shows a cross section which is taken along the line IV IV of FIG. 3;
  • FIG. 5 shows a cross section of the bearing and oil housing of another embodiment of the invention which is provided with a cagelike device for carrying the oil wick and a bearing disk;
  • FIG. 6 shows a cross section of a modification of the invention, in which the oil wick is held by a rider-like or saddlelike element on the bearing disk;
  • FIG. 7 shows a cross section of another embodiment of the invention, in which a freely movable bearing disk is guided by a pivotably suspended supporting strip which curves around the bearing disk and carries a felt wick and holds the same immersed in the oil bath;
  • FIG. 8 shows a side view, partly in cross section, of a bearing unit in which the turbine shaft is mounted radially in air suspension bearings and axially on a rotating bearing disk which is partly immersed in an oil bath,
  • FIG. 9 shows a top view of a bearing unit according to FIG. 8.
  • FIG. 10 shows a top view of an axial or thrust bearing mechanism for several turbine shafts which comprises a belt of plastic traveling around stationary supports;
  • FIG. a shows a side view of one of the turbine units which is provided with a thrust bearing as illustrated in FIG. 10;
  • FIG. 11 shows a cross section of another thrust bearing for the shaft of a spinning turbine, in which the bearing disk is secured to another shaft which is driven independently of the turbine shaft;
  • FIG. 12 shows a cross section of a further thrust bearing according to the invention.
  • FIG. 13 shows a cross section of a modification of the thrust bearing according to FIG. 12, in which the side of the bearing disk facing the end of the turbine shaft is made of a slightly conical shape;
  • FIG. 14 shows a longitudinal section ofa common oil container for the bearing disks of a plurality of spinning turbines of a spinning machine and of the means for driving these disks;
  • FIG. shows a side view of a plurality of adjacent oil containers one of which is partly shown in section and contains a driven bearing disk similar to one of those as shown in FIG. 14; while FIG. 16 shows a cross section which is taken along the line XVI XVI of FIG. 15.
  • FIGS. 1 and 2 illustrate an embodiment of the invention which comprises a frame 1 which supports two pairs of supporting rollers 2 and 3 which are separated by wedge-shaped gaps in which the shaft 4 of an open-end spinning turbine 5 is rotatably supported.
  • the spinning turbine 5 is driven by a belt 6 which runs tangentially over the shaft 4 but at an angle which deviates from a right angle relative to the direction of shaft 4. Due to this angle of the tangential belt 6, an axial thrust is exerted upon shaft 4 carrying the spinning turbine 5 which draws the shaft toward the right.
  • This axial thrust of shaft 4 is taken up at the right end 40 of the shaft by a thrust bearing 7 in the form of a screw which is screwed into the upper end of a vertical end wall 8 of frame 1 and is adjustable in its axial direction within this wall.
  • a pressure roller 6a is provided the axis of which does likewise not extend at a right angle to the direction of travel of belt 6 but is turned in the direction opposite to that in which shaft 4 is turned relative to the belt and thereby insures that during its travel belt 6 will not shift axially along shaft 4.
  • these parts are disposed within a bearing housing 9 the lower part 9a of which is filled with oil into which one end of a wick 10 is immersed which is held in a position adjacent to the thrust bearing 7 by a guide member 11 and from which the upwardly drawn oil may spread over the thrust bearing 7.
  • the bearing housing 9 is completely closed so that the oil cannot pass in the form of a mist or film to areas in which it could impair the quality of the material to be spun.
  • the end of the turbine shaft 4 passes into the bearing housing 9 through a bore 12 in its wall which is sealed toward the outside in a manner not particularly shown.
  • housing 9 has in effect no apertures since its wall opposite to that containing bore 12 is tightly connected to the end wall 8 of frame 1 and the coaxial bores in these walls for the adjusting screw 13 of thrust bearing 7 are sealed toward the outside since this screw 13 through the end wall 8.
  • FIGS. 3 and 4 show an advantageous construction of the means for holding the wick which in this case extends like a horseshoe around the adjacent ends of the turbine shaft and the thrust bearing 7.
  • thrust bearing 7 consists of a bearing disk 7 which is freely movable within a supporting element 14 which also contains a guide channel 11 for the wick 10.
  • This supporting element 14 is rigidly secured to the housing cover 9b and provided adjacent to the bearing plate 7 with slotlike channels 15 which extend radially to the center of disk 7'.
  • the turbine shaft is provided with spirally shaped grooves 4b from which any oil film which might accumulate on the end 4a of the shaft will be thrown off the latter by centrifugal action and which will conduct any oil drops which might form on the housing wall adjacent to the bore 12 back toward the bearing disk 7'.
  • a sealing cap 17 of plastic may be fitted over a flange projecting outwardly from this wall of housing 9. The opening of this cap 17 has at first a slightly smaller diameter than the turbine shaft 4 and it will expand to the diameter of the shaft when the latter'is driven for a certain length of time. When this cap 17 no longer seals properly, it may be exchanged for a new cap. Since the bearing screw 13 may also be screwed tightly through the other wall of housing 9, the thrust bearing of the turbine shaft 4 will be properly oiled and the spinning turbine will therefore run without noise and no oil will pass out of the housing 9 to the outside where it might affect the spinning operation.
  • FIG. 5 illustrates an embodiment of the invention in which the supporting element 14 for the wick 10 is not connected to the cover 9b of the bearing housing but rests on the bottom of the latter.
  • This supporting element 14 consists of a cage 23 for guiding a relatively large bearing disk 7 which is provided with acover 23a for the wick l0 and with oil guide slots 15 which extend radially to the center of disk 7.
  • the bearing disk 7 is rotated due to the fact that the tip 4a of the turbine shaft runs eccentrically on disk 7 and a part of the outer surface of this disk is directly immersed into the oil in housing 9 if the oil level 9a in this housing is sufficiently high.
  • the latter In the event that the oil level should drop below bearing disk 7', the latter will be lubricated by the oil coming from the wick 10.
  • the latter For maintaining the cage 23 in its proper position on the bottom of housing 9, the latter is provided with projections 9c between which the feet of cage 23 are located, while the cover 23a of the cage has a projection 23b which engages into a recess in the outer cover 912.
  • FIG. 6 illustrates an embodiment of the invention in which the supporting element 14 for the wick 10 forms a rider which is placed from above over the end 4a of the turbine shaft or over a stationary thrust bearing 7.
  • This supporting element 14 forms an insert the lower arms 24 of which engage upon the side walls of housing 9, while its upper part forms a cover for housing 9.
  • This construction is very simple and may therefore be produced at a low cost.
  • FIG. 7 illustrates an embodiment of the invention which is designed for a freely movable bearing disk 7.
  • This bearing disk 7 is held within a bent supporting strip 27 of sheet metal or plastic which adjacent to disk 7 clamps the wick I and guides it downwardly into the oil bath 9a.
  • the supporting strip 27 is pivotably suspended on the housing cover 9b and provided adjacent to the bearing disk 7' with an aperture 27a through which the oil can pass from the wick to disk 7'.
  • This embodiment of the invention has the advantage that the entire lubricating device may be lifted together with the cover 9b out of the housing 9 so that, after the end 4a of the turbine shaft has been withdrawn from the housing, the turbine may be easily disassembled, for example, if repairs have to be made.
  • FIGS. 8 and 9 illustrate a bearing unit for an openend spinning turbine S the shaft 4 of which is mounted horizontally in two air-suspension bearings 28 and 29 and is driven by a tangential belt 6 at a very high speed of about 50,000 rpm. or more. While the air-suspension bearings 28 and 29 serve for radially supporting the turbine shaft 4, the end 4a of the shaft is supported by an axial bearing. For this purpose an axial thrust is exerted upon the turbine shaft 4 in the direction toward its end 4a by the tangential belt 6 which is again attained by mounting the shaft 4 so as not to extend at a right angle to the direction of the tangential belt 6.
  • This axial thrust is taken up by a bearing disk 7 which is freely movable within a bearing housing 9 the lower part of which is filled with oil.
  • Bearing disk 7' is, in turn, supported by a bearing screw 13 which is screwed into a vertical end wall 8 of frame 1 and is adjustable in its axial direction.
  • the bearing housing 9 is tightly closed by a removable cover 9b. If it becomes necessary, shaft 4 together with the turbine 5 may be withdrawn toward the left from the bearing housing 9 without requiring any parts of the bearing unit to be loosened or removed.
  • the cover 9b of the latter is provided with downwardly extending supporting projections 30.
  • an overflow channel 31 and an oil collecting chamber 32 are additionally provided. If desired, this collecting chamber 32 and also, for example, the oil chamber in housing 9 may form common chambers for several adjacent turbine bearing units or the individual chambers of each unit as shown in FIGS. 8 and 9 may communicate with each other through connecting pipes.
  • the bearing disk 7' will be slowly rotated due to the rotation of the end 40 of the turbine shaft on the surface of disk 7 and the eccentric position of this end relative to disk 7'.
  • This rotation has the advantage that the point of engagement of the end 40 of the shaft upon the bearing disk 7' changes continuously so that the wear upon the latter is distributed over a larger surface area, Furthermore, the rotation of bearing disk 7 causes all points of the periphery of the disk to pass successively into the oil bath so that the disk will be coated at all times by a film of oil which considerably reduces the friction and wear upon the disk and also the noise of operation of the spinning turbine.
  • FIGS. 10 and 10a illustrate an embodiment of the invention in which, instead of providing a freely movable bearing disk for each turbine shaft, the shafts of a whole group of spinning turbines are supported in their axial directions by a traveling belt of plastic 33 which is driven by a drive pulley 37 and runs at the end 4a of each turbine shaft 4 over a skid 34 which is adjustable to a small extent in the axial direction of the respective shaft 4 on a common stationary element.
  • This bearing arrangement is especially suitable for smaller spinning turbines which require a smaller axial bearing pressure so that a liquid lubrication of the thrust bearings may be omitted which are formed by the belt 33 and the skids 34.
  • each individual turbine shaft 4 is provided with flanges 35 which are slightly offset in the axial direction relative to the poles 36 of an electromagnet or permanent magnet which draws the turbine shaft 4 in its axial direction toward the thrust bearing at its end 4a.
  • the bearing arrangement according to FIGS. 10 and 10a is to be employed for spinning units in which higher axial pressures by the turbine shafts 4 are to be expected.
  • this hearing arrangement may also be employed for machines which are equipped with spinning turbines on opposite sides.
  • FIG. 1 1 illustrates an embodiment of the invention'in which the bearing disk 7' is rigidly secured to one end of a shaft 7a the other end of which is supported on an adjusting screw 13.
  • Shaft 7a runs in two sleeve bearings 38 which are mounted on a frame 39. Shaft 7a and thus also the bearing disk 7 is driven by a belt 40 so that this hearing disk which is partly immersed in an oil bath will always be coated with oil.
  • FIG. 12 only illustrates the parts of a turbine unit which are directly associated with a bearing housing and oil chamber 9 similar to that as already shown in FIGS. 8 and 9.
  • the bearing disk 7' which is partly immersed in the oil bath 9a is provided with a transverse bore of a larger diameter than that of the shaft 41 on which it is mounted which is slidable in a vertical direction within the oil chamber.
  • a projection 90 on the cover of the oil chamber limits the upward movement of bearing disk 7'.
  • the end 4a of the turbine shaft is provided with two annular grooves 4b from which any oil which might pass from the bearing disk 7' to the end 4a of the turbine shaft 4 may be thrown off by centrifugal action.
  • the passage of oil along shaft 4 through the bore 12 to the outside of the oil chamber may be additionally prevented by suitable sealing means.
  • the wall of this bore 12 is provided with a spirally shaped groove 44 which is wound so that during the rotation of shaft 4 any oil will flow back toward the inside of the oil chamber 9.
  • the end part of the turbine shaft at the inside of the oil chamber 9 is provided with two conical surfaces from which the oil which might pass from the bearing disk 7 upon the shaft end 4a will be thrown off by centrifugal action.
  • the cover 9b of the oil chamber is provided with an oil shield 45 which is intended to prevent any oil from passing from the lower side of the cover directly to the bore 12.
  • a thrust bearing in the form of a freely movable or positively driven bearing disk may also be employed for supporting a vertical turbine shaft in its axial direction.
  • the bearing disk would then be disposed within a substantially horizontal plane and would support the turbine shaft with its upper surface.
  • the bearing disk may then run partly or entirely within an oil bath or be provided with an oil coating in any other suitable manner. In smaller turbine units, the turbine shafts may also run without being lubricated.
  • FIG. 14 illustrates a bearing and oil housing 9 for a plurality of turbine units of a spinning machine.
  • This oil housing 9 is made of metal or plastic and adapted to be secured by screws 46 to the rear walls of the individual spinning units or the common rear wall of these units so that the ends of the turbine shafts project into the oil housing 9.
  • the oil housing 9 contains a bearing disk 7 the shaft 41 of which is mounted in a bearing bracket 47.
  • Each of the axially adjustable bearing disks 7 is supported in its axial direction by a bearing screw 13 and is thus acted upon at one side by the end of the turbine shaft and at the other side by the bearing screw 13.
  • the oil housing 9 is filled with oil to such a level that all of the bearing disks 7' are partly immersed in an oil bath 911.
  • All of the bearing disks 7 are positively driven by a common drive which insures that all bearing disks will rotate at a uniform but adjustable speed which facilitates the supervision and adjustment of the thrust bearings.
  • This common drive consists of a longitudinal shaft 48 which is provided at each spinning unit with a worm 49 which engages with wormgear teeth 50 on the peripheral surface of the respective bearing disk 7.
  • the longitudinal shaft 48 is preferably divided into sections each of which has a length substantially equal to the length of one oil housing 9.
  • the longitudinal shaft 48 or the shaft sections are rotatably mounted in bearing rings 51 which are mounted on the ends of the oil housings 9.
  • the individual sections of shaft 48 may be connected to each other by connecting elements (not shown) which preferably consist of parts of plastic which are inserted, for example, into longitudinal grooves in the adjacent ends of the shaft sections and are held in position thereon by spring clamps which surround the connecting elements. If the individual turbines are spaced at short distances from each other.
  • the connecting element between the adjacent sections of shaft 48 is preferably located in or adjacent to a bearing ring 51, while for turbines which are spaced at larger distances from each other, it is possible also to space the adjacent oil housings 9 from each other and to provide the connecting elements of the shaft sections within the areas between the oil housings.
  • each oil housing 9 through the bOlfiiSzWlliCh is provided for the longitudinal shaft 48 or the sections thereof, oil shields (not shown) are provided which may be provided on a common metal strip which extends along the entire length of the oil housing 9 and is secured to either the latter or to its cover 9b.
  • FIGS. 15 and 16 finally illustrate a positive drive for the bearing disks 7 of all turbine units of a spinning machine.
  • a separate oil housing 9 is provided in which a bearing disk 7 is located the shaft 41 of which is rotatably mounted in a bearing bracket 47.
  • Each bearing disk 7 is braced in its axial direction by an adjustable bearing screw 13.
  • the individual oil housings 9 are secured by screws 46 to the frames of the respective turbine units or to a common frame. This individual mounting permits each thrust bearing to the centered within small limits relative to the respective turbine shaft.
  • the cover 9b has integrally connected thereto an oil shield 52 which projects downwardly to the bore in the wall of the oil housing 9 through which the turbine shaft 41 extends. If desired. these oil housings 9 may be made of a transparent plastic through which the operation of the thrust bearing of each turbine unit may be easily inspected from the outside.
  • the bearing disks 7 of all turbine units are provided with outer gear teeth 50 with which a toothed belt 53 engages which runs longitudinally through the spinning machine.
  • This toothed belt 53 which is made of plastic is guided between each adjacent pair of oil housings 9 within an insert 54 of plastic which has a semicylindrical outer shape and is inserted into a semicylindrical aperture between two adjacent oil housings.
  • Each of these inserts 54 has at the inside a channel-of a crosssectional shape substantially equal to that of the toothed belt 53.
  • the covers 9b of the individual oil housings 9 maintain the inserts 54 of the adjacent-spinning units in their proper position.
  • These covers 9b are further provided with inwardly directed projectionsSS which are located ata small distance above the toothed belt 53 so that the latter cannot disengage from the outer gear teeth 50 of the bearing disks 7.
  • suitable means may be providedfor moving the toothed belt back and forth. Thismay bedone, for example, in such a manner that at one end of the spinning machine the toothed belt 53 is mounted on spring means, while the other end. of the belt is connected to a reciprocating drive member so that-. when the direction of travel of the toothed belt 5-3 is. re-
  • a bearing unit for an open-end spinning turbine having a shaft, disposed in a frame, one end of which is operatively connected to the spinning turbine and the other end of which axially abuts against a thrust bearing provided with a bearing surface, said thrust bearing being disposed within a closed bearing housing containing a liquid lubricant, said end of said shaft extending to the inside of said housing through a wall thereof. said shaft being sealed toward the outside of said housing. and means for movably mounting said thrust bearing within said housing to contiriuously change the point of engagement of said other end of said shaft with said bearing surface.
  • a bearing unit as defined in claim 2, wherein said means for conveying the oil includes a U-shaped wick extending around the upper side of said thrust bearing with the two arms of said U-shaped wick being at least partly immersed into said oil bath.
  • said guide channel being provided with a wall having openings through which the oil may pass from said wick to said thrust bearing.
  • a bearing unit according to claim 33 wherein said frame includes an overflow channel and a collecting chamber communicating with said oil bath.
  • a bearing unit as defined in claim 36 wherein a plurality of adjacent spinning turbines are provided, each of said turbines being provided with a turbine shaft and an additional shaft, each of said additional shafts having secured thereto a substantially diskshaped bearing plate, and wherein said drive means are common means for driving simultaneously said plural; ity of adjacent spinning turbines.
  • each of said bearing disks is provided with outer pe ripheral teeth.
  • said common drive means includes an elongated element having teeth engaging with the teeth of said bearing disks. saidjelongated ele ment being movably mounted to drive all ofsaid bearing disks.
  • a hearing unit as defined in claim 42 wherein a reciprocating drive means is provided operatively interconnected with one end of said toothed-beltfor positively moving said additional shaft in one longitudinal direction, the other end of said toothed belt being connected to a resilient means for positively moving said belt in the opposite longitudinal direction.
  • a bearing unit for an open-end'spinning turbine having a shaft, disposed in a frame, one end of which is operatively connected to the spinning turbine and the other end of which axially abuts against a thrust bearing, said thrust bearing being disposed within a closed bearing housing containing a liquid lubricant, said end of shaft extending to the inside of said housing through a wall thereof, said shaft being sealed toward the outside of said housing, said thrust bearing comprises a bearing plate rotatably mounted in said housingis movable during the rotation of said shaft, the'point of engagement of the end of said shaft with the surface of said bearing plate changing continuously on this surface, the axes of said shaft and said bearing plate being substantially parallel but spaced from each other, said bearing plate being driven by the engagement of the end of said shaft with said surface of the bearing plate facing said end in an off-center positionof said surface.
  • a bearing unit as defined in claim 45 wherein said bearing plate forms a disk freely rotatable in said housing and wherein the space between the axes of said shaft and said disk varies during the rotation of, said disk with said axes always spaced at a predetermined minimum distance.
  • a bearing unit for an open-end spinning-turbine having a shaft, disposed in a frame, one end of which the shaft with the surface of the bearing plate changing continuously on this surface, and an abutment, wherein the end of said shaft abutting against said surface of said bearing plate thereby presses the opposite surface of said bearing plate in the axial direction against said abutment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00205558A 1970-12-14 1971-12-07 Bearing unit for open-end spinning turbines Expired - Lifetime US3838560A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2061520A DE2061520B2 (de) 1970-12-14 1970-12-14 Lagerung für einen herausziehbaren Offenend-Spinnrotor
DE2061462A DE2061462C3 (de) 1970-12-14 1970-12-14 Lagerung für Offen-End-Spinnturbinen

Publications (1)

Publication Number Publication Date
US3838560A true US3838560A (en) 1974-10-01

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ID=25760182

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Application Number Title Priority Date Filing Date
US00205558A Expired - Lifetime US3838560A (en) 1970-12-14 1971-12-07 Bearing unit for open-end spinning turbines

Country Status (4)

Country Link
US (1) US3838560A (enrdf_load_stackoverflow)
JP (1) JPS542274Y2 (enrdf_load_stackoverflow)
GB (1) GB1376439A (enrdf_load_stackoverflow)
IT (1) IT943971B (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924398A (en) * 1973-10-24 1975-12-09 Vyzk Ustav Bavlnarsky Method of and apparatus for open end spinning from staple fibers
US4041688A (en) * 1974-08-10 1977-08-16 Fritz Stahlecker Bearing means for spinning rotors of an open-end spinning machine
US4167845A (en) * 1977-03-16 1979-09-18 Skf Kugellagerfabriken Gmbh Axial guide for the shaft of a spinning rotor
US4183199A (en) * 1977-02-19 1980-01-15 Schubert & Salzer Apparatus for bringing to rest the rotor of an open-end spinning device
US4186548A (en) * 1977-04-14 1980-02-05 Fritz Stahlecker Bearing for the spinning rotor of an open-end spinning assembly
US4251119A (en) * 1976-04-13 1981-02-17 Johannes Heidenhain Gmbh Gas bearing for rapidly rotating parts
US4574577A (en) * 1984-01-17 1986-03-11 Hans Stahlecker Driving arrangement for a spinning rotor of an open-end spinning machine
US4763469A (en) * 1986-07-04 1988-08-16 Fritz Stahlecker Open-end rotor spinning arrangement
US5222353A (en) * 1990-11-28 1993-06-29 Fritz Stahlecker Open-end spinning rotor
US5261221A (en) * 1990-06-27 1993-11-16 Fritz Stahlecker Open-end spinning rotor assembly
US5592807A (en) * 1994-07-06 1997-01-14 Rieter Ingolstadt Spinnereimaschinenbau Ag Bearing arrangement for an open-end spinning rotor
US5622040A (en) * 1994-12-21 1997-04-22 W. Schlafhorst Ag & Co. Bearing for an open-end spinning rotor
US5964084A (en) * 1997-05-07 1999-10-12 W. Schlafhorst Ag & Co. Open-end spinning device
CN102691142A (zh) * 2012-06-09 2012-09-26 山西经纬合力机械制造有限公司四厂 用于细纱机粗纱循环中的行走、导向、铰接装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US135295A (en) * 1873-01-28 Improvement in bearings for spindles
US363782A (en) * 1887-05-24 William p
US676471A (en) * 1900-12-13 1901-06-18 George V Cresson Company Journal-box.
US1630310A (en) * 1924-05-16 1927-05-31 George F Sheppard Antifriction bearing
DE1901453A1 (de) * 1969-01-13 1970-08-13 Schurr Stahlecker & Grill Antrieb fuer schnellaufende Spinnorgane
DE1913728A1 (de) * 1969-03-18 1970-10-08 Schurr Stahlecker & Grill Antrieb fuer schnellaufende Spinnorgane
DE1933930A1 (de) * 1969-07-04 1971-01-14 Schurr Stahlecker & Grill Spinnvorrichtung zum Spinnen von Faeden nach dem Offen-End-Verfahren

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS448029Y1 (enrdf_load_stackoverflow) * 1966-06-10 1969-03-27
JPH054075U (ja) * 1991-07-05 1993-01-22 オリンパス光学工業株式会社 測距装置および測距装置用発信装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US135295A (en) * 1873-01-28 Improvement in bearings for spindles
US363782A (en) * 1887-05-24 William p
US676471A (en) * 1900-12-13 1901-06-18 George V Cresson Company Journal-box.
US1630310A (en) * 1924-05-16 1927-05-31 George F Sheppard Antifriction bearing
DE1901453A1 (de) * 1969-01-13 1970-08-13 Schurr Stahlecker & Grill Antrieb fuer schnellaufende Spinnorgane
DE1913728A1 (de) * 1969-03-18 1970-10-08 Schurr Stahlecker & Grill Antrieb fuer schnellaufende Spinnorgane
DE1933930A1 (de) * 1969-07-04 1971-01-14 Schurr Stahlecker & Grill Spinnvorrichtung zum Spinnen von Faeden nach dem Offen-End-Verfahren

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924398A (en) * 1973-10-24 1975-12-09 Vyzk Ustav Bavlnarsky Method of and apparatus for open end spinning from staple fibers
US4041688A (en) * 1974-08-10 1977-08-16 Fritz Stahlecker Bearing means for spinning rotors of an open-end spinning machine
US4251119A (en) * 1976-04-13 1981-02-17 Johannes Heidenhain Gmbh Gas bearing for rapidly rotating parts
US4183199A (en) * 1977-02-19 1980-01-15 Schubert & Salzer Apparatus for bringing to rest the rotor of an open-end spinning device
US4167845A (en) * 1977-03-16 1979-09-18 Skf Kugellagerfabriken Gmbh Axial guide for the shaft of a spinning rotor
US4186548A (en) * 1977-04-14 1980-02-05 Fritz Stahlecker Bearing for the spinning rotor of an open-end spinning assembly
US4574577A (en) * 1984-01-17 1986-03-11 Hans Stahlecker Driving arrangement for a spinning rotor of an open-end spinning machine
US4763469A (en) * 1986-07-04 1988-08-16 Fritz Stahlecker Open-end rotor spinning arrangement
US5261221A (en) * 1990-06-27 1993-11-16 Fritz Stahlecker Open-end spinning rotor assembly
US5222353A (en) * 1990-11-28 1993-06-29 Fritz Stahlecker Open-end spinning rotor
US5592807A (en) * 1994-07-06 1997-01-14 Rieter Ingolstadt Spinnereimaschinenbau Ag Bearing arrangement for an open-end spinning rotor
US5622040A (en) * 1994-12-21 1997-04-22 W. Schlafhorst Ag & Co. Bearing for an open-end spinning rotor
US5964084A (en) * 1997-05-07 1999-10-12 W. Schlafhorst Ag & Co. Open-end spinning device
CN102691142A (zh) * 2012-06-09 2012-09-26 山西经纬合力机械制造有限公司四厂 用于细纱机粗纱循环中的行走、导向、铰接装置
CN102691142B (zh) * 2012-06-09 2015-08-26 山西经纬合力机械制造有限公司四厂 用于细纱机粗纱循环中的行走、导向、铰接装置

Also Published As

Publication number Publication date
JPS542274Y2 (enrdf_load_stackoverflow) 1979-01-30
IT943971B (it) 1973-04-10
JPS531833U (enrdf_load_stackoverflow) 1978-01-10
GB1376439A (en) 1974-12-04

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