CN101395308A - Rotor shaft of a spinning rotor which is supported without any contact being made in a permanent-magnet bearing arrangement - Google Patents
Rotor shaft of a spinning rotor which is supported without any contact being made in a permanent-magnet bearing arrangement Download PDFInfo
- Publication number
- CN101395308A CN101395308A CNA2007800077656A CN200780007765A CN101395308A CN 101395308 A CN101395308 A CN 101395308A CN A2007800077656 A CNA2007800077656 A CN A2007800077656A CN 200780007765 A CN200780007765 A CN 200780007765A CN 101395308 A CN101395308 A CN 101395308A
- Authority
- CN
- China
- Prior art keywords
- armature spindle
- bearing accessory
- magnet ring
- magnet
- fixed
- 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.)
- Pending
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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
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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
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/044—Active magnetic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2340/00—Apparatus for treating textiles
- F16C2340/18—Apparatus for spinning or twisting
Abstract
The invention relates to a rotor shaft of a spinning rotor (3) which is supported without any contact being made in a permanent-magnet bearing arrangement, for an open-end spinning apparatus (1) with revolving magnetic-bearing components (28) which are arranged on the rotor shaft (4) and each comprise a closed permanent-magnet ring (31) as well as a ring binding (32) which secures the permanent-magnet ring (31) against the influence of centrifugal forces during spinning operation, and are in each case fixed on a bearing attachment (30). The invention provides for the rotor shaft (4) to have, on the bearing attachment (30), elastic means (40) which allow the relatively sensitive permanent-magnet ring (31) to be pulled carefully onto and securely fixed on the bearing attachment (30) on the rotor shaft (4).
Description
Technical field
The present invention relates to a kind of feature with claim 1 preamble, noncontact is supported on the spinning rotor armature spindle in the permanent magnet bearing arrangement.
Background technology
Be supported on spinning rotor in the permanent magnet bearing arrangement with open-end spinning device is known explicitly by the armature spindle noncontact, and in different patent applications, describe such spinning rotor in detail.
For example EP 0 972 868 A2 have described a kind of open-end spinning device, and its spinning rotor that is driven by independent motor is supported in this class permanent magnet bearing arrangement by its armature spindle.In this case, the permanent magnet bearing arrangement has preceding supporting-point and back supporting-point, and preceding supporting-point and back supporting-point all have static installation and rotatably mounted magnet parts of bearings again; The magnet parts of bearings polarizes vertically in this case, makes magnetic pole all in opposite direction toward each other.In other words, each supporting-point all has the fixed permanent magnet ring that is arranged on the stator casing and is arranged in the magnet ring that also therewith rotates on the armature spindle.Like this, the magnet ring on the rotor-side all is fixed on the bearing accessory of armature spindle, thereby and is fixed by the centrifugal force that loops component opposing spinning operating period produces.
This class permanent magnet bearing arrangement has proved and has been successful on the whole, and usually confirms some problem but magnet ring is moved on the corresponding bearing accessory of armature spindle.About the annular permanent magnet ring being moved on the bearing accessory of armature spindle, two kinds of conventional methods are for example arranged.In first method, the internal diameter of magnet ring is chosen as the external diameter that is slightly larger than the associated bearings annex, so magnet ring can easily be positioned on the bearing accessory, and magnet ring is clamped by the secure bond part of internal diameter less than the external diameter of magnet ring then.The another kind of method that provides is at first fixed magnet ring by the loops component, and this loops component is moved on the external diameter of magnet ring by interference fit, still by means of interference fit magnet ring is pressed onto on the bearing accessory of armature spindle then.
In these two kinds of methods, not only the diameter of joint face must have tolerance (this has a negative impact for production cost) very closely, and can not always avoid the permanent magnet ring scission or the damage of comparison sensitivity in drawing process.Percent defective when in other words, assembling magnet ring in these two kinds of methods is all than higher.
Therefore proposed to use the slotted ring magnet to replace closed magnet ring.
The use of this class fluting magnet ring has for example been described in DE 10 2,004 005 846 A1.In these known fluting magnet rings, the internal diameter of ring magnet is slightly greater than the external diameter of the bearing accessory of armature spindle.The external diameter of ring magnet is again slightly greater than the internal diameter of relevant secure bond part.This class magnet ring can be shifted onto on the bearing accessory of armature spindle owing to their groove has certain elasticity relatively no problemly, can be clamped at the there on the secure bond part by being pulled to then.
In other words, the fluting of magnet ring is a kind of tried method, but utilizes the defect rate during this method can successfully greatly reduce the armature spindle that production magnetic installs, thereby has obviously reduced cost, but also there are several defectives in the fluting of magnet ring.For example in the groove zone, the magnetic field slightly weakened, this bearing function of holding for the associated magnetic axon does not have the obvious influence of essence, but during the rotation of armature spindle, this field weakening causes producing eddy current in relative static magnets parts of bearings owing to being limited to low-angle.These eddy current are active further under high rotating speed, particularly, cause the long-term further heating of spinning rotor driver again, and this has obviously reduced its efficient.
Summary of the invention
From above-mentioned prior art, the purpose that the present invention is based on provides a kind of armature spindle that noncontact is supported on the spinning rotor of permanent magnet bearing arrangement that is used for, and this armature spindle can will be fixed on the corresponding bearing accessory of armature spindle with the magnet parts of bearings that armature spindle rotates together simple and reliablely.
According to the present invention, this purpose realizes by the described armature spindle of claim 1.
Favorable structure of the present invention is the theme of dependent claims.
Advantage according to armature spindle of the present invention is, by using closed magnet ring to avoid the generation of eddy current substantially, uses elastic device to guarantee can not damage when magnet ring is on being pulled to the bearing accessory of armature spindle on the other hand on the one hand.In other words, be also according to the unique distinction of armature spindle of the present invention that in spinning operating period, the thermally developing (heatdevelopment) that the magnet axis bearing apparatus produces is lower, this efficient for the spinning rotor driver has positive impact.And, because the defect rate when pulling on magnet ring is lower, so can produce more economically according to armature spindle of the present invention.
As described in claim 2, in a favourable embodiment, bearing accessory is provided with resilient middle layer, magnet ring can be shifted onto on this resilient middle layer and does not have the risk of damage.This means that this class resilient middle layer allows in the mode of careful material magnet ring to be moved on the associated bearings annex of armature spindle, and allow at spinning operating period fixed permanent magnet ring reliably.
As described in claim 3, resilient middle layer preferably is fixed on the bearing accessory of armature spindle by sulfuration.With resilient middle layer sulfuration is own known method in the mechanical engineering on metallic substrates, and it allows with the long-term and fixing resilient middle layer of mode reliably.
As described in claim 4, in an optional embodiment, elastic device also can be formed by the rubber ring that for example is fixed in the circumferential reception groove, and this circumferentially receives in the surface that groove is combined in bearing accessory.Gou Zao elastic device also allows in the mode of careful material magnet ring to be moved on the bearing accessory by this way, and allows the precalculated position of magnet ring secure fixation on bearing accessory.
In another optional embodiment, the zone of bearing accessory is provided with the structure (claim 5) that is preferably groove (fluting).
In this example, the external diameter of this class formation is slightly greater than the internal diameter of magnet ring.In other words, when pulling on magnet ring, the material of the structure of bearing accessory is plasticity and strain under the influence of magnet ring, and is placed on the internal diameter of magnet ring in big zone, and the distortion of structure makes magnet ring be fixed on reliably on the bearing accessory of armature spindle.
As described in claim 6, can be arranged to bearing accessory in another embodiment and slot in sheet lobe (lamellar) mode.In this case, sheet lobe or be arranged to slight inclination on the direction of rotation of described armature spindle perhaps is arranged to against this direction of rotation slight inclination, and the external diameter of sheet lobe is slightly greater than the internal diameter of magnet ring.When pulling on magnet ring, the sheet lobe is because being in tilted layout of they and elastic deflection radially, and acts on high confining force on the internal diameter of magnet ring.In other words, in this embodiment, in sheet lobe zone, only be out of shape at the Hookean region generating material.The sheet lobe flexibly places also have been guaranteed on the internal diameter of magnet ring long service life magnet ring is placed on the bearing accessory of armature spindle reliably.
In described another embodiment of claim 7 of the present invention, elastic device is arranged to be fixed on U-shaped and is received in the groove.In this case, this U-shaped receives groove and has the side direction clamping web that can regulate along the elastic device direction, by described side direction clamping web can be reliably fixing elastic device.
In this example, this reception groove is preferably configured as two parts, as described in claim 8.
In other words, described reception groove has the first clamping web and the second clamping web, and this first clamping web is parts of bearing accessory, and this second clamping web is configured to second parts.The described second clamping web can be fixed on the guide surface of bearing accessory with fixing elastic device by interference fit.The advantage of this class formation specifically is, elastic device, and for example section is the rubber type bearer ring of rectangle, can easily insert to receive in the groove, and is fixing reliably by the second clamping web then.
In a favourable embodiment, as described in claim 9, the second clamping web is L shaped.In other words, the second clamping web has clamping pin and support foot.In this case, the internal diameter of support foot and the external diameter of the guide surface on the bearing accessory are configured such that when pushing to the second clamping web, produce interference fit and locate the rubber type bearer ring reliably to guarantee the clamping web.
As described in claim 10, in preferable configuration, also be provided with like this, that is, the second clamping web can be fixed on the guide surface of bearing accessory, makes to be formed with radial air gap in the zone of support foot under the assembled state of elastic device.In other words, the support foot of the second clamping web is very short, thereby guarantees reliable clamping rubber type bearer ring under assembled state.
Description of drawings
To the present invention be described in further detail by means of embodiment shown in the drawings below, in the accompanying drawing:
Fig. 1 represents to have the side view of the open-end spinning device of spinning rotor, and this spinning rotor is driven and is supported on non-contactly in the permanent magnet bearing arrangement by independent motor;
Fig. 2 shows the longitudinal profile of the spinning rotor that magnetic installs with the ratio of amplifying a little, and this spinning rotor can be driven by independent motor;
Fig. 3 shows first embodiment of the bearing accessory of the armature spindle that is equipped with elastic device along the section III-III of Fig. 2;
Fig. 4 represents the side view of second embodiment of the corresponding bearing accessory of armature spindle;
Fig. 5 represents the 3rd embodiment of the bearing accessory of armature spindle;
Fig. 6 represents the 4th embodiment of the bearing accessory of armature spindle;
Fig. 7 is illustrated in another optional embodiment of the bearing accessory of the armature spindle before the fixed permanent magnet ring;
Fig. 8 is illustrated in the embodiment shown in Figure 7 after the fixed permanent magnet ring;
Fig. 9 is illustrated in another two parts embodiment of the bearing accessory of the armature spindle before the fixed permanent magnet ring;
Figure 10 is illustrated in the embodiment shown in Figure 9 after the fixed permanent magnet ring.
The specific embodiment
Fig. 1 represents the known and open-end spinning device 1 that for example describe in detail of principle in EP 0 972 868 A2.This open-end spinning device 1 has rotor case 2, and the revolving cup 26 of spinning rotor 3 rotates in rotor case 2 high speeds.The same with traditional approach, self forwards the cap member 8 installed by pivoting during operation of the rotor case 2 of opening close, and be connected to negative pressure source 11 via the pneumatic circuit 10 of correspondence, negative pressure source 11 is created in negative spinning pressure required in the rotor case 2.And the same with traditional approach, in cap member 8, be furnished with channel plate adapter 12 replaceably, channel plate adapter 12 has drawn work mouth 13 and leads the mouth area of fine passage 14.Drawn work pipe 15 and drawn work mouth 13 adjacency, as known.And, on cap member 8, being fixed with opening roller housing 17, opening roller housing 17 is mounted to and can rotates in limited range around pivotal pin 16.Cap member 8 also has the after- poppet 19,20 that is used to install opening roller 21 or fiber band supply tube 22.In this case, opening roller 21 tangentially is with 24 to drive along the rotation of machine length in the zone of its wharve 23, preferably carries out fiber band supplied with a driving (not shown) of tins 22 by means of the gear that links to each other with driving shaft 25 along machine length simultaneously.
In optional embodiment, opening roller 21 and/or fiber band are supplied with tube 22 and obviously also can be driven by single driving device (for example stepper motor) respectively.
As shown in Figure 1, spinning rotor 3 is driven by independent electric motor drive device 18, and is supported on non-contactly by its armature spindle 4 in the preceding supporting-point 6 and back supporting-point 7 of permanent magnet bearing arrangement 5.
Fig. 2 represents that this class magnetic is installed and the enlarged drawing of the spinning rotor 3 that driven by independent motor; In other words, spinning rotor 3 is supported in the permanent magnet bearing arrangement 5 non-contactly by its armature spindle 4, is equipped with the motor magnets 9 of independent motor driver 18 in the zone of rotor 4 between the preceding supporting-point 6 of permanent magnet bearing arrangement 5 and back supporting-point 7.In this case, motor magnets 9 obviously also can be arranged in the armature spindle 4 that is configured to quill shaft.
Supporting- point 6 and 7 all has the magnet parts of bearings 27 and the rotatably mounted magnet parts of bearings 28 of static installation.In other words, the rotatable installation magnet parts of bearings 28 that itself has magnet ring 31 and secure bond part 32 is relative with static magnet parts of bearings 27, static magnet parts of bearings 27 is made of magnet ring 33 and magnet bearing coil 34 substantially, can be by connecting 35 and provide electric current in the mode that limits to magnet bearing coil 34.
Thereby magnet ring 31 is fixed on the bearing accessory 30 of armature spindle 4 with the magnetic aligning of correspondence respectively, and bearing accessory 30 is equipped with elastic device 40 on its periphery.
To shown in Figure 10, these elastic devices 40 can have different embodiments as Fig. 3.
In embodiment shown in Figure 3, resilient middle layer 46 for example cures on the bearing accessory 30 of armature spindle 4.The magnet ring 31 that for example is provided with secure bond part 32 in advance can be pulled on this resilient middle layer 46, and the external diameter of resilient middle layer 46 is slightly larger than the internal diameter of magnet ring.And it is evident that, be positioned on the bearing accessory 30 in case it is contemplated that magnet ring 31, just only secure bond part 32 is moved on the magnet ring 31.
According to the embodiment of Fig. 4, elastic device 40 is configured to rubber ring 44, for example is the form of O shape ring.In this case, rubber ring 44 is put into reception groove 43 on bearing accessory 30 peripheries of armature spindle 4.The magnet ring 31 that internal diameter can be slightly larger than the external diameter of bearing accessory 30 is shifted onto on this rubber ring 44.In this case, rubber ring 44 is stuck in the circumferential recess 45 in magnet ring 31 inner diameter zone, and magnet ring 31 is locked on the bearing accessory 30.In this embodiment, magnet ring 31 also preferably was equipped with secure bond part 32 before or after pulling.
Fig. 5 shows armature spindle 4, and wherein bearing accessory 30 is slotted in sheet lobe mode.In this example, sheet lobe 42 or be arranged to slight inclination on direction of rotation R perhaps is arranged to against this direction of rotation slight inclination.In this embodiment, the external diameter of sheet lobe 42 is also slightly greater than the internal diameter of magnet ring 31, therefore when magnet ring 31 was pulled on the bearing accessory 30, strain took place in sheet lobe 42, made the magnet ring that is provided with secure bond part 32 in advance be fixed on reliably on the bearing accessory 30.
In the embodiment according to Fig. 6, the bearing accessory 30 of armature spindle 4 is provided with structure 41.In this example, be preferably configured as the external diameter of this structure 41 of groove slightly greater than the internal diameter of magnet ring 31.In the time will moving on the bearing accessory 30 by conjunction 32 fixing magnet rings 31, the summit of structure (peak) 41 plasticity and strain, thus between parts, produce firm connection.
In Fig. 7 and embodiment shown in Figure 8, bearing accessory 30 has side direction clamping web 36,37, their for example outwardly-bent at first slightly opening, thus have receiving position shown in Figure 7.The elastic device 40 that for example is the form of rubber ring that section is a rectangle or rubber type bearer ring can be between these clamping webs 36,37, and fixing reliably, because clamping web 36,37 is bent to operating position, as shown in Figure 8.In other words, clamping web 36,37 is along the direction bending of elastic device 40, and the elastic device 40 that will for example be configured to bearer ring then is fixed on its operating position.As mentioned above, the magnet ring 31 that for example is provided with secure bond part 32 in advance can be pulled on this bearer ring, and the external diameter of bearer ring is slightly larger than the internal diameter of magnet ring 31.
In the embodiment according to Fig. 9 and Figure 10, the bearing accessory 30 of armature spindle 4 is two parts.In other words, bearing accessory 30 has first clamping web 36 that is attached in the bearing accessory and the guide surface 38 that is used to receive the second clamping web 37 that separates.The second clamping web 37 is L shaped and has clamping pin 39 and support foot 29 and support holes 47.The support holes 47 of the second clamping web 37 and the guide surface 38 on the bearing accessory 30 match each other, and make them form interference fit when engaging.In order to assemble magnet ring 31, at first bearer ring 40 is shifted onto on the bearing receiving element 30, and fixed by bearer ring 40 is shifted onto on the clamping web 37.In this example, support foot 29 long enoughs of clamping web 37 have enough supports to guarantee bearer ring 40, and enough short in to guarantee that bearer ring 40 is located securely.
As shown in figure 10, also preferably under assembled state, the less radial air gap of width is set in support foot 29 the place aheads.Then, can be fixed on the bearer ring 40, as shown in figure 10 by secure bond part 32 fixing magnet rings 31 in advance or afterwards.
Claims (10)
1. the noncontact of an open-end spinning device (1) is supported on the armature spindle of the spinning rotor (3) in the permanent magnet bearing arrangement, it has the magnet parts of bearings (28) of rotation, described magnet parts of bearings (28) is arranged on the described armature spindle (4), and include closed magnet ring (31) and fixing described magnet ring (31) with loops component (32) in spinning operating period opposing centrifugal forces affect, described magnet parts of bearings (28) all is fixed on the bearing accessory (30), this armature spindle is characterised in that, described armature spindle (4) has elastic device (40) on described bearing accessory (30), this elastic device (40) allows will compare carefully responsive magnet ring (31) and moves on the described bearing accessory (30) of described armature spindle (4) also fixed thereon reliably.
2. armature spindle according to claim 1 is characterized in that, described bearing accessory (30) is provided with resilient middle layer (46), described magnet ring (31) can be shifted onto on this resilient middle layer.
3. armature spindle according to claim 2 is characterized in that, described resilient middle layer (46) is fixed on the described bearing accessory (30) by sulfuration.
4. armature spindle according to claim 1 is characterized in that, described elastic device (40) is configured to rubber ring (44), and this rubber ring can be fixed in the zone of bearing accessory (30) in the corresponding reception groove (43).
5. armature spindle according to claim 1 is characterized in that, described bearing accessory (30) is provided with the structure (41) that is preferably groove.
6. armature spindle according to claim 1, it is characterized in that, described bearing accessory (30) is slotted in sheet lobe mode, described lobe (42) be arranged to or on the direction of rotation of described armature spindle (4) slight inclination, perhaps be arranged to against this direction of rotation slight inclination.
7. armature spindle according to claim 4 is characterized in that, described elastic device (40) can be fixed on U-shaped and receive in the groove (43), and this U-shaped receives the side direction clamping web (36,37) of groove (43) and can regulate along the direction of described elastic device (40).
8. armature spindle according to claim 4, it is characterized in that, described reception groove (43) is configured to two parts, the first clamping web (36) is parts of described bearing accessory (30), and the second clamping web (37) can be fixed on the guide surface (38) of described bearing accessory (30) by interference fit.
9. armature spindle according to claim 8 is characterized in that, the described second clamping web (37) is L shaped, and has clamping pin (39) and support foot (29).
10. armature spindle according to claim 8, it is characterized in that, the described second clamping web (37) can be fixed on the described guide surface (38) of described bearing accessory (30), make under the assembled state of described elastic device (40), in the zone of described support foot (29), be formed with radial air gap (a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006011426.4 | 2006-03-11 | ||
| DE102006011426A DE102006011426A1 (en) | 2006-03-11 | 2006-03-11 | Rotor shaft of a non-contact supported in a permanent magnet bearing assembly spinning rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101395308A true CN101395308A (en) | 2009-03-25 |
Family
ID=37907072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800077656A Pending CN101395308A (en) | 2006-03-11 | 2007-01-11 | Rotor shaft of a spinning rotor which is supported without any contact being made in a permanent-magnet bearing arrangement |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101395308A (en) |
| DE (1) | DE102006011426A1 (en) |
| WO (1) | WO2007104374A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463651A (en) * | 2015-12-29 | 2016-04-06 | 江阴市天力机电制造有限公司 | Magnetic suspension spindle shaft assembly for covering machine |
| CN106592025A (en) * | 2015-10-16 | 2017-04-26 | 索若德国两合股份有限公司 | Open end rotor spinning device with a spinning rotor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017104141A1 (en) * | 2017-02-28 | 2018-08-30 | Maschinenfabrik Rieter Ag | Open-end spinning device with a coupling device for supply lines |
| DE102020104627A1 (en) * | 2020-02-21 | 2021-08-26 | Saurer Spinning Solutions Gmbh & Co. Kg | Shaft bearing for mounting a spinning rotor of a rotor spinning machine |
| US11855521B2 (en) | 2021-02-02 | 2023-12-26 | Black & Decker, Inc. | Brushless DC motor for a body-grip power tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5622040A (en) * | 1994-12-21 | 1997-04-22 | W. Schlafhorst Ag & Co. | Bearing for an open-end spinning rotor |
| CZ410497A3 (en) * | 1996-12-20 | 1998-07-15 | W. Schlafhorst Ag Und Co. | Axial mounting of open-end spinning machine |
| DE19827606A1 (en) * | 1998-06-20 | 1999-12-23 | Schlafhorst & Co W | Non-contact bearing for open-end spinning rotor shaft with magnetic axial bearing |
| DE102004005846A1 (en) * | 2004-02-06 | 2005-08-25 | Saurer Gmbh & Co. Kg | Rotor shaft of a spinning rotor |
-
2006
- 2006-03-11 DE DE102006011426A patent/DE102006011426A1/en not_active Withdrawn
-
2007
- 2007-01-11 CN CNA2007800077656A patent/CN101395308A/en active Pending
- 2007-01-11 WO PCT/EP2007/000181 patent/WO2007104374A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592025A (en) * | 2015-10-16 | 2017-04-26 | 索若德国两合股份有限公司 | Open end rotor spinning device with a spinning rotor |
| CN106592025B (en) * | 2015-10-16 | 2019-01-08 | 索若德国两合股份有限公司 | Open-end rotor spinning unit including spinning rotor |
| CN105463651A (en) * | 2015-12-29 | 2016-04-06 | 江阴市天力机电制造有限公司 | Magnetic suspension spindle shaft assembly for covering machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006011426A1 (en) | 2007-09-13 |
| WO2007104374A1 (en) | 2007-09-20 |
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Open date: 20090325 |