EP3636811A9 - Procédé de vérification de l'état de montage d'un rotor de filature d'un dispositif de filature à bout libre et dispositif de filature à bout libre - Google Patents

Procédé de vérification de l'état de montage d'un rotor de filature d'un dispositif de filature à bout libre et dispositif de filature à bout libre Download PDF

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Publication number
EP3636811A9
EP3636811A9 EP19202310.9A EP19202310A EP3636811A9 EP 3636811 A9 EP3636811 A9 EP 3636811A9 EP 19202310 A EP19202310 A EP 19202310A EP 3636811 A9 EP3636811 A9 EP 3636811A9
Authority
EP
European Patent Office
Prior art keywords
axial
rotor
spinning
bearing
spinning rotor
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.)
Granted
Application number
EP19202310.9A
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German (de)
English (en)
Other versions
EP3636811B1 (fr
EP3636811A1 (fr
Inventor
Matthias Lauer
Markus Kübler
Bernd Loos
Constantin RIEGER
Peter Dirnberger
Andreas Josef Pröll
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP3636811A1 publication Critical patent/EP3636811A1/fr
Publication of EP3636811A9 publication Critical patent/EP3636811A9/fr
Application granted granted Critical
Publication of EP3636811B1 publication Critical patent/EP3636811B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning

Definitions

  • the present invention relates to a method for checking an assembly state of a spinning rotor, which comprises a rotor shaft with a shoulder and a rotor cup detachably connected to the rotor shaft.
  • the spinning rotor is mounted in a magnetic bearing in an open-end spinning device that can be closed with a cover element on the front.
  • the magnetic bearing has means for adjusting an axial position of the rotor shaft, means for detecting the axial position and at least one front axial catch bearing for the shoulder of the rotor shaft.
  • Spinning rotors of today's open-end spinning machines are often stored in magnetic bearings due to the high speeds of well over 100,000 rpm. These are advantageous compared to purely mechanical bearings at very high speeds because they have only low friction losses and are hardly susceptible to wear. They can be designed as passive bearings with permanent magnets as well as active bearings with controlled electromagnets. Non-contact storage in the radial and axial directions is not possible with passive bearings. If passive magnetic bearings are used in open-end spinning devices, they are generally used for radial bearings. So that the spinning rotor maintains a predetermined operating position in the axial direction, passive magnetic bearings are provided with an additional position control for the axial position.
  • both the radial position and the axial position of the spinning rotor are permanently recorded and controlled accordingly.
  • Both the position control for passive magnetic bearings and the actively controlled magnetic bearings are dependent on a constant power supply. In order to avoid damage to the magnetic bearings in the event of malfunctions, therefore mechanical catch bearing provided.
  • the present invention deals with both types of magnetic bearings.
  • An open-end spinning device with a passive magnetic bearing and a position control for the axial position (central position control) is for example from the DE 10 2006 030 187 A1 known.
  • Such magnetic bearings each contain a front and a rear position with magnetic devices, ie either permanent magnets, actively controllable electromagnets or a combination of the two.
  • a part of these magnetic devices is fixed on the rotating rotor shaft of the spinning rotor and interacts with fixed magnetic devices which are fixed on the bearing housing of the spinning rotor.
  • the assembly and removal of such a spinning rotor is therefore associated with considerable effort.
  • it is therefore detachably connected to the rotor shaft by means of a coupling device.
  • a spinning rotor with a coupling device is from the EP 2 832 903 B1 known.
  • the coupling device is designed as a plug-in coupling, in which the rotor cup can be inserted into or plugged onto the rotor shaft.
  • plug-in couplings of this type the rotor cup may not be pushed onto the rotor shaft or inserted into the rotor shaft far enough, and the coupling length may be too short.
  • the running behavior of the spinning rotor and also the spinning results are impaired by such incorrect assembly.
  • a correct assembly state of the spinning rotor ie the correct axial position of the rotor cup with respect to the rotor shaft, is also essential from a safety point of view because the rotor cup could become detached from the rotor shaft during operation.
  • the object of the present invention is therefore to propose a method for checking the assembly state of a spinning rotor. Furthermore, a corresponding open-end spinning device is to be proposed.
  • the spinning rotor is mounted in a magnetic bearing in an open-end spinning device that can be closed with a cover element on the front.
  • the spinning rotor has a rotor shaft with a shoulder and a rotor cup detachably connected to the rotor shaft.
  • the magnetic bearing includes means for adjusting an axial position of the rotor shaft, means for detecting the axial position and at least one front catch bearing for the shoulder of the rotor shaft.
  • a first distance between the shoulder of the rotor shaft and the front catch bearing is defined for a regular axial operating position of the spinning rotor.
  • the spinning rotor is moved axially in the direction of the front catch bearing until it reaches an axial stop.
  • a first travel path of the spinning rotor between the regular axial operating position and the axial stop is recorded and compared with the first distance.
  • the spinning rotor is started when the first travel path is equal to the previously defined first distance.
  • the spinning rotor is prevented from starting if the determined travel path is smaller than the previously defined first distance.
  • a corresponding open-end spinning device which can be closed at the front with a cover element, has a control device which is designed to carry out the method.
  • the invention is based on the idea that the spinning rotor accommodated in its regular axial operating position in the magnetic bearing can only be moved against the front catching bearing by the full travel distance, i.e. the first distance between the shoulder of the rotor shaft and the front catching bearing, if it has a correct installation condition.
  • the spinning rotor since the rotor cup is in its correct axial position in relation to the rotor shaft, the spinning rotor can be moved from its regular axial operating position in the direction of the front axial catch bearing until it strikes it.
  • the axial stop which limits the travel of the spinning rotor, is thus formed in this case by the front axial catch bearing.
  • the travel of the spinning rotor or the rotor shaft therefore corresponds exactly to the previously defined distance between the shoulder of the rotor shaft and the front catch bearing.
  • the spinning rotor has a faulty assembly state, i. H. If the rotor cup is not completely pushed onto or inserted into the rotor shaft, the spinning rotor has a greater axial length. If this spinning rotor is now moved in the direction of the front axial catching bearing, the spinning rotor strikes the cover element of the open-end spinning device due to the greater length with the edge of the rotor cup before the shoulder of the rotor shaft has reached the front axial catching bearing. In this case, the axial stop that limits the travel of the spinning rotor is not formed by the axial catch bearing, but by the cover element. The travel distance between the regular operating position and the axial stop is therefore shorter than the first distance between the regular operating position and the front axial catch bearing.
  • the entire method can be carried out automatically with the aid of components which are in any case part of the magnetic bearing or the open-end spinning device. Since no additional components are required, the method and the open-end spinning device can also be carried out correspondingly inexpensively. It is also particularly advantageous that the method can be carried out completely automatically. This advantageously prevents the start of an incorrectly installed spinning rotor, which also ensures the safety of the operating personnel.
  • the cover element of the open-end spinning device is first closed and the spinning rotor is moved into its regular axial operating position. Only then is the spinning rotor moved in the direction of the front axial catch bearing until it reaches the axial stop.
  • This means that the magnetic bearing is activated after the open-end spinning device is closed and the spinning rotor is brought into its regular axial operating position. From this he is then moved with the means for adjusting the axial position of the rotor shaft in the direction of the front axial catch bearing until he reaches the axial stop.
  • the spinning rotor is first moved in the direction of the front catch bearing until it reaches the axial stop, and only then is the cover element of the open-end spinning device closed and the spinning rotor is moved into the regular axial operating position.
  • the magnetic bearing is activated before the open-end spinning device closes and the spinning rotor is moved up to the axial stop. Then becomes the open end spinning device closed with the cover element, the entire spinning rotor is displaced backwards in the axial direction by the cover element.
  • the cover element forms the axial stop; if the spinning rotor is correctly installed, however, the front axial catch bearing forms the axial stop. If the spinning rotor is now moved from the axial stop into its regular axial operating position after the open-end spinning device has been closed, the assembly state of the spinning rotor can in turn be inferred from the travel path.
  • the spinning rotor before the spinning rotor is started, the spinning rotor is additionally moved in the direction of a rear axial catch bearing until it strikes the rear axial catch bearing with a rear bearing surface.
  • the magnetic bearing has a rear axial catch bearing and the rotor shaft has a rear bearing surface for striking the rear catch bearing.
  • Further information regarding the operational readiness of the open-end spinning device can be obtained from the travel path between the rear axial catch bearing and a reference point, for example the regular axial operating position or the front axial catch bearing. For example, contamination or damage in the bearing can be concluded from this.
  • a second distance between the rear bearing surface of the rotor shaft and the rear catch bearing is defined for the regular axial operating position of the spinning rotor and the spinning rotor is moved between the regular axial operating position and the rear catch bearing.
  • a second travel path of the spinning rotor is recorded.
  • the detected second travel path is then compared with the second distance between the regular axial operating position and the rear catch bearing. From a deviation of the determined second travel distance from the defined second distance, damage and / or contamination of the rear axial catch bearing can be concluded.
  • the open-end spinning device has an output device which can be controlled by the control device in the event of such a deviation. In this way, the operating personnel can quickly see that and possibly also why the open-end spinning device in question has not been put into operation.
  • the determination of the first travel path and / or the determination of the second travel path is carried out before each start of the spinning rotor.
  • errors which have occurred after the successful initial start-up can also be reliably detected.
  • the spinning rotor is no longer checked again after a stop due to a normal, automatic maintenance process.
  • Such normal maintenance processes are, for example, piecing after a thread break or a cleaner cut, after cleaning the rotor or even changing the bobbin.
  • the determination of the first travel path and / or the second travel path could, for example, also be carried out in rotation after a certain number of maintenance processes in each case, or could even be limited to the initial start-up after a lot change.
  • the coupling device of the spinning rotor comprises a locking device. At least the unintentional loosening of the coupling device after the correct assembly of the spinning rotor, for example during operation, can thereby be avoided.
  • the locking device has a catch area which, when the spinning rotor is assembled, has a correct assembly state of the spinning rotor. This means that the spinning rotor automatically slips into the correct assembly state as soon as the catching area of the coupling device is reached when the rotor cup is mounted on the rotor shaft. This makes it possible to avoid faulty assemblies with only slight deviations from the correct assembly state. In comparison to those with large deviations, such faulty assemblies can often neither be visually detected by the operating personnel, nor can they be recognized by means of the described method after being inserted into the spinning device. The safety of the open-end spinning device can thereby be increased further.
  • Such a locking device with a catch area can be implemented, for example, with an axial clip.
  • the spinning rotor has a minimal gap to the cover element when the shoulder rests against the front catch bearing and when the assembly is correct, and the catch range of the locking device is larger than the minimum gap.
  • the safety of the open-end spinning device can hereby be guaranteed for all faulty assembly states of the spinning rotor, since larger assembly errors can be recognized by means of the described method and smaller assembly errors can be avoided by the locking device with the catch area.
  • FIG. 1 shows an open-end spinning device 1 in a schematic, sectional overview.
  • the open-end spinning device 1 can be closed at the front with a cover element 7.
  • the spinning rotor 2 is formed in two parts with a rotor cup 4 and a rotor shaft 3, which are connected by a coupling device 14.
  • the spinning rotor 2 can be rotated and held by means of a drive 18.
  • the magnetic bearing 6 conventionally includes a front radial bearing 6a, a rear radial bearing 6b and, in the present case, a separate axial bearing 6c.
  • the open-end spinning device 1 further includes a control device 15, by means of which the magnetic bearing 6 can be operated and with which, depending on the design the magnetic bearing 6, at least some of the components of the magnetic bearing 6 are in a tax-related connection (dotted lines).
  • a control device 15 by means of which the magnetic bearing 6 can be operated and with which, depending on the design the magnetic bearing 6, at least some of the components of the magnetic bearing 6 are in a tax-related connection (dotted lines).
  • the various designs of such magnetic bearings 6 and their structure are well known and are therefore not explained in detail.
  • the open-end spinning device 1 shown here has an output device 16 for outputting a signal, which is likewise in control connection (dotted line) with the control device 15.
  • the magnetic bearing 6 has means 8 for adjusting the axial position of the spinning rotor 2 or the rotor shaft 3 and means 9 for detecting the axial position. In the present case, these are arranged in the region of a rear end of the spinning rotor 2, but a different arrangement would also be conceivable, depending on the design of the magnetic bearing 6.
  • the means 9 for detecting the axial position of the spinning rotor 2 include a sensor coil, which reports the detected axial position of the control device 15, and the means 8 for adjusting the axial position include a magnetic coil which can be controlled by the control device 15.
  • the means 8 for adjusting the axial position can also include one or more regulated electromagnets of an active magnetic bearing 6 and the means 9 for detecting the axial position can comprise a plurality of position sensors. It is also possible for the means 9 to be designed to detect the absolute position of the spinning rotor 2 in the magnetic bearing 6. To carry out the method, however, it is sufficient if the means 9 are only designed to detect a change in position of the spinning rotor 2 in the axial direction. The actual position of the spinning rotor 2 can nevertheless be inferred from the detected change in position and the control data of the means 8 for setting the axial position.
  • the open-end spinning device 1 has, in a manner known per se, a front axial catch bearing 10 and a rear axial catch bearing 12, which meet the rotating and the stationary parts prevent the magnetic bearing 6 in the event of a power failure or if vibrations occur.
  • the spinning rotor 2 accordingly has a shoulder 5 which interacts with the front axial catch bearing 10.
  • the spinning rotor 2 has a rear bearing surface 13, which in the present case is formed by the rear end of the rotor shaft 3.
  • the spinning rotor 2 In its regular axial operating position 11 (see Figures 2-5 ) the spinning rotor 2 is usually in a central position between the two catch bearings 10, 12, which is held by the means 9 for detecting the axial position and the means 8 for adjusting the axial position.
  • a first embodiment of the method for checking an assembly state of a spinning rotor 2 will now be described with reference to FIG Figures 2a, 2b , 3a and 3b explained.
  • the cover element 7 of the open-end spinning device 1 is first closed and only then is the spinning rotor 2 moved in the direction of the front axial catch bearing 10.
  • the spinning rotor 2 is shown in its regular axial operating position 11, in which the shoulder 5 of the rotor shaft 3 is at a first distance s0 from the front axial catch bearing 10. Likewise, the rear bearing surface 13 has a second distance h0 from the rear axial catch bearing 12.
  • the spinning rotor 2 is shown here in a correct assembly state, in which the rotor cup 4 is completely attached to the rotor shaft 3. If the spinning rotor 2 is in a correct assembly state and in its regular axial operating position 11, then it has a regular gap dimension k0 to the cover element 7 of the open-end spinning device 1, as shown here.
  • the cover element 7 can contain a channel plate or a channel plate adapter that can be inserted into such a channel plate.
  • the magnetic bearing 6 is now activated and the spinning rotor 2 is made to float. Furthermore, the spinning rotor 2 or the rotor shaft 3 by the means 8 for adjusting the Axial position of the rotor shaft 3 moves in the direction of the front axial catch bearing 10 until it reaches an axial stop.
  • Figure 2b shows the spinning rotor 2 after it has been moved in the direction of the front catch bearing 10 and has reached the axial stop.
  • the first travel path s covered by the spinning rotor 2 was detected or determined by the means 9 for detecting the axial position of the rotor shaft 3. Since the spinning rotor 2 is in a correct assembly state, the shoulder 5 of the rotor shaft 3 can be moved against the axial catch bearing 10 as far as it will go. The spinning rotor 2 still has a minimum gap dimension km to the cover element 7 even after striking. The axial stop is thus formed by the front axial catch bearing 10 when the spinning rotor 2 is correctly mounted.
  • the control device 15 see Figure 1
  • the first travel path s is now compared with the first distance s0.
  • the determined first travel path s corresponds to the first distance s0 which the shoulder 5 has in the regular axial operating position 11 of the spinning rotor 2 from the front axial catch bearing 10 .
  • the open-end spinning device 1 can thus be put into operation and the spinning rotor 2 can be started.
  • FIG 3a shows a spinning rotor 2 in a faulty assembly state, in which the rotor cup 4 is not completely pushed onto the rotor shaft 3 or the coupling device 14 is not completely closed.
  • the spinning rotor 2 is also shown in its regular axial operating position 11, in which the shoulder 5 is at the first distance s0 from the front axial catch bearing 10.
  • the gap dimension k between the spinning rotor 2, more precisely between the open edge of the rotor cup 4 of the spinning rotor 2, and the cover element 7 is, however, reduced compared to the regular gap dimension k0, since the spinning rotor 2 has a greater axial length due to the faulty assembly state.
  • a second embodiment of the method is based on the Figures 4a, 4b and 4c described.
  • the magnetic bearing 6 is first activated and the spinning rotor 2 is moved in the direction of the front axial catch bearing 10 and only then is the cover element 7 closed.
  • FIG 4a shows the open-end spinning device 1 with the cover element 7 still open, the spinning rotor 2 having already been driven against the front axial catch bearing 10 and striking it.
  • the axial stop is thus formed by the front axial catch bearing 10 in this method.
  • the spinning rotor 2 is shown here in a faulty assembly state in which it has a greater axial length.
  • the spinning rotor 2, more precisely the shoulder 5 of the spinning rotor 2 again has the first distance s0 from the regular axial operating position 11, which is symbolized here only by a line.
  • the cover element 7 closed it contacts the incorrectly mounted spinning rotor and pushes it back in the direction of its regular axial operating position 11, as shown by the two-dot chain lines.
  • the spinning rotor 2 is transferred from the shifted position (solid lines) into its regular axial operating position 11 (dashed lines) after the cover element 7 has been closed.
  • the first travel path s covered is in turn recorded and compared with the predetermined first distance s0. Since the spinning rotor 2 has already been displaced by the cover element 7 due to the faulty assembly state, the first travel path s in the present example is, however, smaller than the first distance s0 or possibly even negative, namely when the spinning rotor 2 is above its regular axial operating position 11 was also moved in the direction of the rear axial catch bearing 12. From the too small travel s, it can in turn be concluded that the spinning rotor 2 is in an incorrect assembly state.
  • Figure 4c shows the method after the second embodiment with the spinning rotor 2 correctly installed Figure 4a described, the spinning rotor 2 is moved to the front axial catch bearing 10 until the cover element 7 is closed. The cover element 7 is now closed (two-dot chain lines). Since the spinning rotor 2 has a correct axial length due to the correct assembly state, it is not displaced by the cover element 7. If, after the cover element 7 is closed, the spinning rotor 2 is moved from the axial stop, here the front catch bearing 10, into its regular axial operating position 11, the first travel path s therefore corresponds exactly to the predefined, first distance s0.
  • Figure 5 shows a further step that can be carried out both in the method after the first execution and in the method after the second execution.
  • the spinning rotor 2 is thereby by means 8
  • the second travel h is detected by means 9 for detecting the axial position and compared with the predefined second distance h0. If the second travel path h is smaller than the second distance h0, it can be concluded, for example, that the rear axial catch bearing 12 has a flight.
  • Figure 6 shows the rear end of the rotor shaft 3 and the rear axial catch bearing 12 again in a detailed representation. It can be seen that, due to contamination 21 of the rear axial catch bearing 12, the spinning rotor 2 or the rotor shaft 3 cannot be moved by the full second distance h0, but already strikes the contamination 21 after a shorter second travel path h. If the second travel path h deviates from the second distance h0, the output device 16 ( Figure 1 ) a signal is output.
  • the spinning rotor 2 Most of the faulty assembly states of the spinning rotor 2 can be identified by means of the described methods. How from Figure 2b emerges, the spinning rotor 2 also has a minimum gap km to the cover element 7 when it is in the correct assembly state when it is struck against the front axial catch bearing 10. A faulty assembly state, in which the deviation of the axial position of the rotor cup 4 is smaller than the minimum gap km, can therefore not be identified using the described methods become. Rather, the spinning rotor 2 can be moved up to the stop on the front axial catch bearing 10, despite the slightly faulty assembly.
  • the coupling device 14 of the spinning rotor 2 therefore preferably has a locking device 17 with a catch area I.
  • a locking device 17 is in the Figures 7 and 8 shown.
  • the locking device 17 is designed in the form of an axial clip 19.
  • Figure 7 shows a schematic sectional view of the coupling device 14 in a side view
  • Figure 8 shows a sectional detailed view of the locking device 17 with the catch area I in a side view.
  • the axial clip 19 can be designed, for example, in the form of a snap ring or O-ring which interacts with a corresponding recess 22 or groove.
  • the catch area I describes the distance to the correctly coupled position at which the rotor cup 4 just snaps into the correctly coupled axial position. This catch area I is preferably larger than the minimum gap dimension km, so that the faulty assembly states can now be recognized with only slight deviations of the rotor cup 4 from the correct axial position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19202310.9A 2018-10-10 2019-10-09 Procédé de vérification de l'état de montage d'un rotor de filature d'un dispositif de filature à bout libre et dispositif de filature à bout libre Active EP3636811B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018124947.0A DE102018124947A1 (de) 2018-10-10 2018-10-10 Verfahren zum Überprüfen eines Montagezustands eines Spinnrotors einer Offenendspinnvorrichtung sowie Offenendspinnvorrichtung

Publications (3)

Publication Number Publication Date
EP3636811A1 EP3636811A1 (fr) 2020-04-15
EP3636811A9 true EP3636811A9 (fr) 2020-06-17
EP3636811B1 EP3636811B1 (fr) 2021-03-17

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Application Number Title Priority Date Filing Date
EP19202310.9A Active EP3636811B1 (fr) 2018-10-10 2019-10-09 Procédé de vérification de l'état de montage d'un rotor de filature d'un dispositif de filature à bout libre et dispositif de filature à bout libre

Country Status (3)

Country Link
EP (1) EP3636811B1 (fr)
CN (1) CN111020757B (fr)
DE (1) DE102018124947A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005032184A1 (de) * 2005-07-09 2007-01-18 Saurer Gmbh & Co. Kg Verfahren zum Betreiben eines elektromotorischen Antriebs
DE102006030187A1 (de) * 2006-06-30 2008-01-10 Oerlikon Textile Gmbh & Co. Kg Lagereinrichtung für einen Spinnrotor
DE102013108199A1 (de) * 2013-07-31 2015-02-05 Maschinenfabrik Rieter Ag Offenend-Spinnrotor mit einer Rotortasse, einem Rotorschaft sowie einer Kupplungsvorrichtung
DE102014001627B4 (de) * 2014-02-07 2022-03-24 Saurer Spinning Solutions Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung und Verfahren zum Betreiben einer Offenend-Rotorspinnvorrichtung
DE102015111673A1 (de) * 2015-07-17 2017-01-19 Rieter Cz S.R.O. Verfahren zum sicheren Starten und/oder Stoppen eines Rotors einer Rotorspinnmaschine und Rotorspinnmaschine
DE102015016055A1 (de) * 2015-12-11 2017-06-14 Saurer Germany Gmbh & Co. Kg Elektrischer Antrieb und Offenend-Spinneinrichtung mit dem elektrischen Antrieb
DE102016122595A1 (de) * 2016-11-23 2018-05-24 Maschinenfabrik Rieter Ag Rotortasse und Offenend-Spinnrotor mit einer Rotortasse
DE102017103622A1 (de) * 2017-02-22 2018-08-23 Rieter Cz S.R.O. Verfahren zur Lagerung eines Spinnrotors sowie Lagerung, Spinnrotor und Stützlager

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Publication number Publication date
CN111020757A (zh) 2020-04-17
CN111020757B (zh) 2022-11-08
EP3636811B1 (fr) 2021-03-17
EP3636811A1 (fr) 2020-04-15
DE102018124947A1 (de) 2020-04-16

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