EP0794273B1 - Offenend-Spinnvorrichtung - Google Patents
Offenend-Spinnvorrichtung Download PDFInfo
- Publication number
- EP0794273B1 EP0794273B1 EP97102380A EP97102380A EP0794273B1 EP 0794273 B1 EP0794273 B1 EP 0794273B1 EP 97102380 A EP97102380 A EP 97102380A EP 97102380 A EP97102380 A EP 97102380A EP 0794273 B1 EP0794273 B1 EP 0794273B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carbide
- open
- spinning device
- end spinning
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
- D01H4/12—Rotor bearings; Arrangements for driving or stopping
Definitions
- the object of the present application is to provide an open-end spinning device Form mentioned in such a way that the wear is further reduced is, although the cost should be very low to insignificant.
- This object is achieved according to the invention with an open-end spinning device solved the features of claim 1.
- a carbon material together with a carbide offers one Particularly advantageous, low-friction and low-wear material pairing.
- the Lifespan of an open-end spinning device with an aerostatic thrust bearing can be significantly extended by the training according to the invention.
- the use of a boron carbide is particularly favorable since this is a very high one Has hardness and causes little wear of the carbon material.
- Silicon carbide is particularly favorable as a material for the bearing surface of the shaft applicable. Together with the carbon material, this forms the bearing surface of the Axial bearings a particularly cheap, low-friction and even under load particularly low-wear material pairing.
- the bearing surface of the rotor shaft with a carbide is coated.
- the design of the bearing surface of the shaft is particularly favorable, if it consists of a flat surface that is coated. Thereby is achieved that the coating can be applied very thin and at the same time it is ensured that the geometric conditions in the thrust bearing are cheap.
- a carbide is coated, which is in a metal matrix, in particular one Nickel matrix is stored. This ensures that simple and cost-effective way the shaft end with a carbide tread can be designed.
- the tread is like this is coated. It is obviously not necessary for the entire tread consists of carbide. It is particularly advantageous if by sufficient carbide content in the coating bath is ensured that the Bearing surface of the rotor shaft at least 20% of its tread made of carbide consists. This share is already sufficient to make significant improvements to the Achieve downtimes of the thrust bearing.
- the storage area is advantageously 25% up to 50% made of carbide. It is particularly favorable if the coating is silicon carbide contains.
- the rest can also be added in one operation Shaft coated with, so that the remaining areas of the shaft are wear-resistant without incurring additional costs.
- a grain size of Carbide grains of the coating between 2 ⁇ m and 6 ⁇ m are particularly good in integrate the metal matrix and at the same time result in good running properties.
- Cheap the coating has mechanical properties with a thickness between 10 ⁇ m and 30 ⁇ m.
- the main components are the spinning rotor 1 with its Shaft 11 and the rotor plate 12, the rotor housing 2 with the Rotor housing seal 21, the bearing block 3 with a receptacle 31 for the Thrust bearing 6 and a receptacle 32 for the support of the support disks 4, as well as the Support discs 4 themselves, for receiving the rotor shaft 11. Furthermore, these are Drive means 5, a tangential belt, and the axial bearing 6 for axial support the rotor shaft 11 shown.
- the rotor shaft 11 extends with its Rotor plate 12 bearing end in the rotor housing 2 through the bore of Rotor housing seal 21 through.
- the thrust bearing 6 is in an adjusting screw 61 arranged and is opposite the free end 111 of the rotor shaft 11.
- the Recording 31 has a bore with a thread into which the set screw is screwed in axially adjustable. A lock nut is used for fixation.
- the connection 62 At the the other end of the screw 61 is the connection 62 for the supply of Compressed air to the axial bearing 6 is arranged. Between this and the shaft end 111 extends the bearing gap 630.
- On spinning rotors of generic open-end spinning devices an axial force is applied in a known manner, which is is supported via the free end 111 of the rotor shaft 11.
- the axial force on the The rotor or rotor shaft is in the open-end spinning device shown in Figure 1 applied by supporting disks 4 which are skewed in a known manner.
- the axial force component e.g. over a sloping to the Drive shaft running through the rotor shaft or an inclined pressure or Traction sheave to apply.
- the open-end spinning device is on the Recording 33, which is part of the associated spinning machine, attached.
- FIG. 2a shows an adjusting screw 61 and a bearing plate 63 arranged therein an aerostatic thrust bearing 6. Has air to escape into the bearing gap the bearing plate 63 a plurality of bores 7.
- a throttle device 8, which consists of a Sintered material is upstream of the holes, which makes the bearing receives high rigidity, since the short air columns in the holes hardly are compressible.
- Figure 2b shows the bearing plate 63 of Figure 2a in plan view.
- the holes 7 are evenly distributed on a circular line at a distance from the center arranged.
- the bearing plate 63 is made of a carbon material, e.g. Coal graphite.
- the bearing plate can also be from a coked or graphitized carbon and a synthetic resin bond Carbon graphite material.
- FIG. 3 shows a shaft end 111 designed according to the invention, which with the Bearing plate of the thrust bearing works together.
- the shaft end 111 has one flat ground surface 115, which is coated with a carbide material. This can e.g. Boron carbide or silicon carbide.
- the shaft end 111 has a little in the area of the surfaces 115 smaller diameter than the rest of the shaft, which means that the rotor shaft when Inserting the rotor into the open-end spinning device easier in the wedge gap Support discs can be inserted.
- FIG. 4 shows the free end 111 of an embodiment according to the invention Rotor shaft in which this carries a shoulder 113 made of a carbide material consists.
- This can e.g. Boron carbide or silicon carbide.
- Approach 113 is over suitable connecting means, e.g. an adhesive into the prepared one Inserted and fastened end of the rotor shaft.
- the bearing surface 115 is as well the bearing surface 115 consisting of a coating, from FIG. 3, flat trained and designed with a low roughness. This ensures together with the carbide material that only very little wear on the Bearing plate is done.
- this can also be connected to the shaft without a form fit.
- the attachment can for example by means of an adhesive.
- Figure 5 shows a section through the free end of an inventive configured rotor shaft, the bearing surface 115 of carbide crystals 7 consists of a metallic matrix 71, which here advantageously consists of nickel, are stored.
- the bearing surface 115 is made of carbide, So it has been shown that it is already possible with such a coating is the favorable running properties between a carbide material and a Realize bearing plate 63 made of carbon material. It has been shown that already with an area share of 20% of the carbide in the total storage area 115 is sufficient for this.
- This type of training of the invention Open-end spinning device also has the advantage that not only the Bearing surface 115 of the rotor shaft 11 with e.g.
- Silicon carbide can be coated can, but also advantageously in one operation remaining surface of the rotor shaft, to this by the coating with Protect silicon carbide from wear. This wear occurs e.g. in the area of Tangential belt 5, in the area of the support disks 4 or in the area of a not shown brake on.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
- Figur 1
- eine erfindungsgemäße Offenend-Spinnvorrichtung im Schnitt;
- Figur 2a
- einen Schnitt durch das Axiallager;
- Figur 2b
- eine Draufsicht auf die Lagerplatte des Axiallagers;
- Figur 3
- das freie Ende eines Rotorschaftes;
- Figur 4
- einen Rotorschaft mit einem Ansatz;
- Figur 5
- einen Schnitt durch die Lagerfläche des Rotorschaftes mit einer Beschichtung aus Karbidkörnern, die in Nickel eingelagert sind.
Claims (14)
- Offenend-Spinnvorrichtung mit einem Spinnrotor, der über seinen Schaft durch Stützscheiben gelagert ist, auf den eine axial wirkende Kraft ausgeübt wird, die sich über den Schaft an einem aerostatischen Axiallager abstützt, wobei die Lagerfläche des Axiallagers aus einem Kohlenstoffwerkstoff besteht, dadurch gekennzeichnet, daß die mit dem Axiallager (6) zusammenwirkende Lagerfläche (115) des Schaftes (11) wenigstens teilweise aus einem Karbid besteht.
- Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Karbid Borkarbid ist.
- Offenend-Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Karbid Siliziumkarbid ist.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Karbid in Form eines Ansatzes (113) am Schaft (11) angebracht ist.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Lagerfläche (115) des Schaftes (11) mit einem Karbid beschichtet ist.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Lagerfläche (115) des Schaftes (11) eine plan geschliffene Fläche ist, die beschichtet ist.
- Offenend-Spinnvorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Beschichtung aus einem Karbid besteht, das in eine Metallmatrix eingelagert ist.
- Offenend-Spinnvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Metallmatrix eine Nickelmatrix ist.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Oberfläche der Lagerfläche (115) des Rotorschaftes (11) wenigstens zu 20% aus Karbid besteht.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Lagerfläche (115) des Rotorschaftes (11) zwischen 25% und 50% aus Karbid besteht.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 5 bis 10, dadurch gekennzeichnet, daß das Karbid eine Korngröße von 2 µm bis 6 µm besitzt.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 5 bis 11, dadurch gekennzeichnet, daß die Beschichtung eine Dicke zwichen 10 µm und 30 µm hat.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 5 bis 12, dadurch gekennzeichnet, daß das Karbid Siliziumkarbid ist.
- Offenend-Spinnvorrichtung nach einem oder mehreren der Ansprüche 5 bis 13, dadurch gekennzeichnet, daß die übrige Oberfläche des Rotorschaftes (11), wenigstens teilweise, ebenfalls mit einem Karbid beschichtet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19608272 | 1996-03-05 | ||
DE19608272 | 1996-03-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0794273A1 EP0794273A1 (de) | 1997-09-10 |
EP0794273B1 true EP0794273B1 (de) | 1998-08-12 |
Family
ID=7787150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97102380A Expired - Lifetime EP0794273B1 (de) | 1996-03-05 | 1997-02-14 | Offenend-Spinnvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US5730532A (de) |
EP (1) | EP0794273B1 (de) |
CZ (1) | CZ287255B6 (de) |
DE (2) | DE59700010D1 (de) |
SK (1) | SK27897A3 (de) |
TW (1) | TW366370B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10055443A1 (de) * | 2000-11-09 | 2002-05-29 | Wacker Chemie Gmbh | Beschichtete Rotorwelle für einen Spinnrotor zum Offenend-Spinnen |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6401444B1 (en) | 1999-10-26 | 2002-06-11 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Bearing composition for a open-end spin rotor |
DE10014861A1 (de) * | 1999-10-26 | 2001-05-03 | Rieter Ingolstadt Spinnerei | Lagerung für einen Offenend-Spinnrotor |
IT1318240B1 (it) * | 2000-07-25 | 2003-07-28 | Balance Systems Spa | Dispositivo di arresto assiale di un rotore, in particolare di unindotto di motore elettrico, per macchine equilibratrici. |
DE10106204A1 (de) * | 2001-02-10 | 2002-08-14 | Rieter Ingolstadt Spinnerei | Offenend-Spinnvorrichtung mit einem aerostatischen Radiallager für einen Spinnrotor |
DE10106726A1 (de) * | 2001-02-14 | 2002-08-22 | Rieter Ingolstadt Spinnerei | Offenend-Spinnrotor mit einer aufsetzbaren Abstützkappe |
EP1316629A1 (de) * | 2001-11-29 | 2003-06-04 | Rieter Ingolstadt Spinnereimaschinenbau AG | Stützscheibe und Lagerung für einen Spinnrotor |
EP1927687A3 (de) * | 2006-11-29 | 2010-01-20 | Rieter Ingolstadt GmbH | Offenend-Spinnvorrichtung mit einem aerostatischen Axiallager für einen Spinnrotor, aerostatisches Axiallager sowie Verfahren zur Herstellung eines aerostatischen Axiallagers |
CN102501317A (zh) * | 2011-11-03 | 2012-06-20 | 山东瑞天工程器材有限公司 | 混凝土搅拌运输车 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375891A (en) * | 1980-05-10 | 1983-03-08 | Rolls-Royce Limited | Seal between a turbine rotor of a gas turbine engine and associated static structure of the engine |
JPS6356315U (de) * | 1986-09-30 | 1988-04-15 | ||
DE3942612C2 (de) * | 1989-12-25 | 2003-05-08 | Rieter Ingolstadt Spinnerei | Offenend-Spinnvorrichtung |
DE4037833A1 (de) * | 1990-11-28 | 1992-06-04 | Fritz Stahlecker | Oe-spinnrotor |
EP0583656B1 (de) * | 1992-08-07 | 1995-09-20 | Rieter Ingolstadt Spinnereimaschinenbau AG | Führung für den Schaft eines Offenend-Spinnrotors |
DE4442384C1 (de) * | 1994-11-29 | 1995-12-07 | Wanger Gerhard | Spindel zur aerostatischen Lagerung eines Offenend-Spinnrotors |
-
1997
- 1997-02-14 EP EP97102380A patent/EP0794273B1/de not_active Expired - Lifetime
- 1997-02-14 DE DE59700010T patent/DE59700010D1/de not_active Expired - Lifetime
- 1997-02-14 DE DE19705607A patent/DE19705607A1/de not_active Withdrawn
- 1997-02-26 CZ CZ1997577A patent/CZ287255B6/cs not_active IP Right Cessation
- 1997-02-28 US US08/807,912 patent/US5730532A/en not_active Expired - Lifetime
- 1997-03-03 SK SK278-97A patent/SK27897A3/sk unknown
- 1997-03-04 TW TW086102585A patent/TW366370B/zh active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10055443A1 (de) * | 2000-11-09 | 2002-05-29 | Wacker Chemie Gmbh | Beschichtete Rotorwelle für einen Spinnrotor zum Offenend-Spinnen |
Also Published As
Publication number | Publication date |
---|---|
SK27897A3 (en) | 1997-10-08 |
DE59700010D1 (de) | 1998-09-17 |
DE19705607A1 (de) | 1997-09-11 |
US5730532A (en) | 1998-03-24 |
CZ287255B6 (en) | 2000-10-11 |
CZ57797A3 (en) | 1997-09-17 |
EP0794273A1 (de) | 1997-09-10 |
TW366370B (en) | 1999-08-11 |
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