WO2017064613A1 - Spindelunterteil für spindeln einer ringspinnmaschine - Google Patents
Spindelunterteil für spindeln einer ringspinnmaschine Download PDFInfo
- Publication number
- WO2017064613A1 WO2017064613A1 PCT/IB2016/056071 IB2016056071W WO2017064613A1 WO 2017064613 A1 WO2017064613 A1 WO 2017064613A1 IB 2016056071 W IB2016056071 W IB 2016056071W WO 2017064613 A1 WO2017064613 A1 WO 2017064613A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spindle
- spindle lower
- magnet
- hollow cylinder
- reinforced plastic
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/04—Spindles
- D01H7/08—Mounting arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Definitions
- the present invention relates to a spindle lower part for spindles of a ring spinning machine.
- Ring spinning machines with single spindle drive as an alternative to tape drive have been known for some time, even if they could not prevail today in practice for various reasons compared to the conventional tape drive. Accordingly, there are numerous publications in this field, which inter alia with the drive concept, the bearing concept or with the attachment of such spindle units on the machine frame, d. H. deal with the spindle bank.
- ring spinning machines to bespulende sleeves are held on spindle upper parts.
- the drive belt usually wraps around a spindle lower part, wherein spindle upper part and lower spindle part are made in one piece and form the spindle.
- each individual spindle is driven by a motor assigned to it.
- DE 198 420 C1 discloses a single motor driven spindle.
- the spindle is mounted on a shaft which simultaneously forms the motor axis.
- the motor is designed as an external rotor motor.
- the stator is rotatably held on the shaft and the rotor rotates, being taken through the rotor, a spindle top part via a coupling.
- On the spindle upper part is the sleeve to bespulende is attached.
- the spindle upper part is provided on the shaft with a bearing independent of the spindle lower part.
- EP 1 156 141 A1 discloses a single-motor driven spindle in which the rotor is fastened to the spindle lower part.
- the stator is firmly anchored to the spindle bank. This turns the motor shaft, which simultaneously represents the spindle lower part.
- the spindle upper part is designed as an extension of the spindle lower part and serves as a receptacle for the sleeve to bespulende.
- the spindle lower part is mounted below the motor in a bearing sleeve.
- the CH 701 482 A2 a possible magnetic storage of a belt driven or single motor driven spindle can be seen.
- the proposed therein storage includes a magnetic bearing in combination with a rolling bearing.
- the invention has for its object to provide a spindle lower part, which allows a compact design and a reduced mass of the rotating components and a correspondingly simple storage energy savings in operation over conventional designs and a high level of user-friendliness.
- a spindle lower part is proposed with a provided at one end of the spindle lower part receptacle for rotationally fixed a spindle top and a first magnet for a motor and a second magnet for a magnetic thrust bearing and a third magnet for a magnetic radial bearing.
- the spindle lower part is designed as a cylinder-shaped hollow body produced by injection molding from a fiber-reinforced plastic having a longitudinal axis.
- the magnets are arranged in the hollow body, wherein the first magnet in a first hollow cylinder and the third magnet in a second hollow cylinder rotatably held are.
- the hollow cylinders are at least partially enclosed by the fiber-reinforced plastic, wherein a fiber-reinforced plastic facing surface of the hollow cylinder forms a permanent connection with the fiber-reinforced plastic.
- the hollow cylinders are rotatably held in the hollow body.
- the spindle lower part is placed in the ring spinning machine on a spindle foot which is rotatably attached to the spindle. On the spindle foot, the counterparts necessary for the motor and the magnetic bearings are applied. Since the spindle root is held against rotation, this forms the stator in the motor region and the spindle lower part is designed accordingly as a rotor. Since the first magnet for the motor forms the rotor and is held in a rotationally fixed manner via the first hollow cylinder in the hollow body of the spindle lower part, the entire spindle lower part is rotated by the motor. The motor is thus operated as a so-called external rotor motor in which the motor axis represents the stator and thus the stationary part of the engine.
- the arrangement of the various bearings on the spindle root is arbitrary, and it has been shown that advantageously the thrust bearing is to be arranged on a, the receptacle for the spindle top opposite end of the spindle lower part.
- a magnetic radial bearing is provided in this case between the engine and the thrust bearing.
- the storage of the spindle lower part on the spindle root with a magnetic thrust bearing and also a magnetic radial bearing can be supplemented to improve the running properties advantageously by another radial bearing.
- This radial bearing is advantageously not to be integrated in the spindle lower part, but mounted between the spindle top and the spindle root.
- the radial bearing is provided in the spindle top and is also designed as a magnetic bearing.
- the first hollow cylinder in which the magnet is held for the motor, formed from a magnetically conductive or ferromagnetic material.
- the ferromagnetic material traps the magnetic field lines and limits the propagation of the magnetic field.
- magnetic conductive materials are not austenitic steel alloys with a high content of iron, nickel or cobalt into consideration.
- the magnet is pressed into the hollow cylinder and is thus held against rotation. To improve ribbing in the axial direction are conceivable, which mounted between the hollow cylinder and the magnet in mutually matching design on the magnet and the hollow cylinder.
- the ribs of the hollow cylinder and the magnet engage with each other, resulting in an additional anti-rotation lock.
- annular disc made of a magnetically non-conductive material is provided adjacent to the second magnet.
- the annular disc is used for manufacturing technical need to keep the second magnet in a predetermined position.
- the magnetically non-conductive material used may be, for example, aluminum or a plastic.
- a plastic ring is held in the second hollow cylinder in addition to the second magnet.
- This plastic ring is suitable as an emergency bearing and advantageously made of PA6, PTFE or POM. In the event of failure of the magnetic radial bearing contact with the spindle lower part is avoided by the emergency bearing with the spindle root. Also, the spindle lower part is held at standstill of the system by the emergency bearing in its axial position.
- the plastic ring can be clamped in the hollow cylinder, for this purpose, the outer diameter of the plastic ring with a slight excess over the inner diameter of the hollow cylinder to manufacture.
- at least one of the three magnets is formed from a plurality of magnetic elements.
- a structure of the magnetic radial bearing of at least two magnetic elements has proven to be advantageous.
- the two magnetic elements are arranged as rings in the axial direction next to each other and are held by the common hollow cylinder.
- the use of a ferromagnetic material for the hollow cylinder of the radial bearing is not necessary with the use of multiple magnetic elements.
- the hollow cylinder can, for example, bronze, aluminum or alloys thereof and from Plastic be formed.
- the magnetic elements are held by pressing or gluing in the hollow cylinder.
- the thrust bearing is advantageously provided as an active magnetic bearing. Due to the fact that a yarn is wound up in operation on a spinning sleeve placed on the spindle upper part, the axial load of the spindle lower part constantly changes. To take this fact into account, the axial magnetic bearing is designed as an active element. With an active thrust bearing it is possible to keep the axial position of the spindle lower part constant even with changing axial load. In order to enable control of the active axial bearing, the current position of the spindle lower part on the longitudinal axis must be determined. To determine the position or a deviation from a predetermined position, a distance sensor is used, which performs a measurement against a provided in the spindle lower part sensor plate.
- eddy-current sensors or inductive sensors can be used as sensors.
- a sensor plate made of steel is provided in the spindle lower part.
- the sensor plate is annular and held by a permanent connection in the fiber-reinforced plastic of the spindle lower part.
- the sensor plate is partially enclosed on at least three sides of the fiber-reinforced plastic and is held immovably in the spindle lower part.
- a surface of the sensor plate facing the fiber-reinforced plastic of the spindle lower part is provided, for example, with a structure which promotes a connection of the steel to the plastic.
- the surfaces of the hollow cylinder are provided with a structure for surface enlargement.
- the structure can be formed by a ribbing, knurling or a simple roughening of the surface.
- the surface enlargement serves to improve the connection of the hollow cylinder with the fiber-reinforced plastic and also to achieve an anti-rotation between fiber-reinforced plastic and the hollow body.
- depressions in the direction of the longitudinal axis are provided in a wall of the hollow body, wherein the depressions are concentric with the Longitudinal axis arranged.
- the recesses may be formed in the manufacture of the spindle lower part or introduced at a later date in the form of holes.
- the recesses are uniformly distributed in the form of individual holes concentrically to the longitudinal axis. For example, an array of fifteen to eighteen wells having a diameter of 2 to 3 mm has proven sufficient.
- the depressions serve the possibility of a center of gravity correction when balancing the spindle top part.
- the exact concentricity of the spindle lower part itself, as well as with an attached spindle top part, is essential for reliable operation of a spinning station.
- the recesses provided for this purpose can be filled in a balancing process if necessary with different materials to achieve an exact concentricity of the spindle top.
- a depression in the form of an annular gap arranged concentrically to the longitudinal axis can also be provided.
- the provided in the spindle lower part receptacle for the spindle upper part is formed in a preferred embodiment as a running in the longitudinal axis cylindrical opening.
- the cylindrical opening preferably has a diameter of 17 to 18 mm over a length of 29 to 30 mm. These dimensions allow an attachment of spindle tops with today's usual diameters, wherein the diameter of a spindle top is matched to the dimensions of the réellesteckenden spin tubes.
- Alternative embodiments of the receptacle are, for example, a receptacle formed with a polygonal cross-section or threaded. Such a shape would allow a rotationally secure attachment of the spindle top in the spindle lower part.
- the spindle top part can be pressed into the spindle top part.
- a safeguard against rotation can be achieved with a corresponding pressing operation, but can also be achieved in another known manner, such as, for example, gluing, welding, pinning or the like.
- the spindle lower part is produced by injection molding from a fiber-reinforced plastic.
- the reinforcement of the plastic is formed in a preferred embodiment by glass fibers, aramid fibers or carbon fibers. By adding the fibers, an increase in the strength and dimensional stability of the plastic mass is achieved, which contributes to the components held in the plastic such as hollow cylinder, ring disk, magnets and sensor plate are immovably integrated into the spindle lower part. Due to its mechanical and thermal properties and its suitability for processing in an injection molding process, a plastic material has proven to be a plastic material, for example polypropylene.
- the spindle lower part To produce the spindle lower part, an injection molding process is used.
- the hollow cylinders are held with the magnets held therein on a core and molded with a fiber-reinforced Kuststoffmasse.
- the spindle lower part In the subsequent shaping, the spindle lower part is removed from the core and can be used without further post-processing.
- This cost-effective method of manufacture allows true to scale production of the spindle lower parts with the simultaneous integration of the magnets and other components. Subsequent necessary complex assembly of the individual components by means of fasteners is unnecessary.
- Figure 1 Schematic representation of a spindle of a ring spinning machine
- FIG. 2 Schematic representation of an inventive spindle lower part in a longitudinal section
- FIG. 1 shows a schematic representation of a spindle 25 of a ring spinning machine.
- Today's ring spinning machines are equipped with several hundred spinning stations, each spinning station being provided with a spindle 25.
- the spindle 25 is composed of a spindle upper part 20 and a lower spindle part 1.
- the upper spindle part 20 is rotatably fixed in the lower spindle part 1 in a designated would take 28 held.
- the spindle lower part 1 which rotates with the spindle upper part 20 about a common longitudinal axis 5, is in turn rotatably mounted together with the spindle upper part 20 on a stationary spindle spindle 21 mounted on a spindle base 22.
- the bearing of the spindle 25 via a magnetic thrust bearing 27 and two spaced radial bearings 26, 29.
- the spindle rail 21 facing radial bearing 29 is designed as a magnetic radial bearing 29 and arranged in the spindle lower part.
- the radial bearing 26 facing away from the spindle rail 21 can likewise be designed as a magnetic bearing and is arranged in the spindle upper part 20.
- the drive of the spindle 25 is provided, with the rotatably anchored on the spindle root 22 stator 23 and built-in spindle base 1 rotor 24. A necessary enclosure of the rotating at high speed spindle lower part 1 is not here shown.
- the spindle lower part 1 is made as a cylindrical hollow body 6 made of a fiber-reinforced plastic. Embedded in the hollow body 6 are necessary for the storage and the drive elements. By embedded is meant that the elements are partially surrounded by the fiber reinforced plastic and thereby held in place. In the manufacturing process, the elements are applied to a core corresponding to the inner contour of the spindle lower part 1 and then encapsulated with the fiber-reinforced plastic in an injection molding process.
- a receptacle in the form of a cylindrical opening 16 is provided for a spindle upper part.
- the cylindrical opening 16 has a length L of 29 mm to 30 mm a diameter D of 17 mm to 18 mm.
- the sensor plate 13 is an annular disk made of steel, which is immovably integrated into the hollow body 6 of the spindle lower part 1.
- the sensor plate 13 serves to determine the position of the spindle lower part 1 on the longitudinal axis 5 with respect to the spindle root and the spindle bank. With the help of this position determination, the regulation of an active magnetic axial allagers possible.
- a first hollow cylinder 7 made of a ferromagnetic material is integrated, which holds the magnet 2 for the motor.
- the hollow cylinder 7 with the magnet 2 form the rotor of the motor for driving the spindle lower part 1.
- the longitudinal axis 5 facing away from the surface 9 of the hollow cylinder 7 is provided with a structure for surface enlargement. This contributes to a better connection and thus rotationally fixed anchoring of the hollow cylinder 7 in the hollow body 6.
- a second magnet 3 is provided for a thrust bearing in the form of a ring in the hollow body 6. Adjacent to the magnet 3 on the side facing the magnet 2, an annular disk 11 consisting of a non-magnetically conductive material is installed. This annular disc 1 1 serves to hold the magnet 3 in the manufacturing process. Furthermore, a second hollow cylinder 8 is integrated in the hollow body 6. Analogous to the first hollow cylinder 7, the surface 9 of the second hollow cylinder 8 facing away from the longitudinal axis 5 is also provided with a structure for surface enlargement. This second hollow cylinder 8 carries two annular magnetic elements 4a, 4b, which together form the magnet 4 for a radial bearing.
- the hollow cylinder 8 does not have to consist of a ferromagnetic material and merely serves to hold the annular magnetic elements 4a, 4b. Also held in the hollow cylinder 8 is a plastic ring 12. This serves as an emergency bearing, so that in case of failure of the magnetic radial bearing, the spindle lower part 1 does not or only slightly diverges from the longitudinal axis 5.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201690001271.1U CN208594356U (zh) | 2015-10-16 | 2016-10-11 | 用于环锭精纺机的锭子的锭子下部以及环锭精纺机 |
| JP2018600047U JP3219826U (ja) | 2015-10-16 | 2016-10-11 | リング精紡機のスピンドル用のスピンドル下側部分 |
| DE112016004709.6T DE112016004709A5 (de) | 2015-10-16 | 2016-10-11 | Spindelunterteil für Spindeln einer Ringspinnmaschine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01501/15 | 2015-10-16 | ||
| CH01501/15A CH711652A1 (de) | 2015-10-16 | 2015-10-16 | Spindelunterteil für Spindeln einer Ringspinnmaschine. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017064613A1 true WO2017064613A1 (de) | 2017-04-20 |
Family
ID=57209655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2016/056071 Ceased WO2017064613A1 (de) | 2015-10-16 | 2016-10-11 | Spindelunterteil für spindeln einer ringspinnmaschine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3219826U (de) |
| CN (1) | CN208594356U (de) |
| CH (1) | CH711652A1 (de) |
| DE (1) | DE112016004709A5 (de) |
| WO (1) | WO2017064613A1 (de) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE198420C (de) | 1907-05-01 | 1908-05-15 | United Shoe Machinery Ab | Maschine zum falten oder umbiegen van schuhleder |
| DE69417253T2 (de) * | 1993-11-09 | 1999-07-08 | Societe De Mecanique Magnetique, Saint-Marcel | Montage und antriebsvorrichtung einer spindel, insbesondere einer textilspindel |
| EP1156141A1 (de) | 2000-05-18 | 2001-11-21 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Einzelspindel-antriebsvorrichtung mit Vibrationsdämpfungsmitteln |
| DE102006008339A1 (de) * | 2006-02-23 | 2007-08-30 | Saurer Gmbh & Co. Kg | Aufspulmaschine |
| CH701482A2 (de) | 2009-07-16 | 2011-01-31 | Rieter Ag Maschf | Spindellagerung. |
| US20140300233A1 (en) * | 2013-04-03 | 2014-10-09 | Fanuc Corporation | Rotator member to be fixed to rotary shaft of rotary electric machine, rotator including rotator member, and method for manufacturing rotary electric machine and rotator |
| DE102014119131A1 (de) * | 2013-12-27 | 2015-07-02 | Fanuc Corporation | Rotor eines Elektromotors mit Magnet-Halterungs-Vorrichtung und Elektromotor mit dem Rotor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2337696C3 (de) * | 1973-07-25 | 1982-12-09 | Teldix Gmbh, 6900 Heidelberg | Magnetische Vorrichtung, insbesondere für ein Schwungrad |
| CH688515A5 (de) * | 1994-07-23 | 1997-10-31 | Traxler Alfons Dr | Vakuumzentrifuge und Dichtung hierfuer. |
| JPH11262214A (ja) * | 1998-03-11 | 1999-09-24 | Nippon Seiko Kk | スピンドルモータ |
| DE102005062196A1 (de) * | 2005-12-23 | 2007-06-28 | Saurer Gmbh & Co. Kg | Offenend-Spinnrotor für eine Kreuzspulen herstellende Textilmaschine |
-
2015
- 2015-10-16 CH CH01501/15A patent/CH711652A1/de not_active Application Discontinuation
-
2016
- 2016-10-11 CN CN201690001271.1U patent/CN208594356U/zh not_active Expired - Fee Related
- 2016-10-11 DE DE112016004709.6T patent/DE112016004709A5/de not_active Withdrawn
- 2016-10-11 WO PCT/IB2016/056071 patent/WO2017064613A1/de not_active Ceased
- 2016-10-11 JP JP2018600047U patent/JP3219826U/ja not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE198420C (de) | 1907-05-01 | 1908-05-15 | United Shoe Machinery Ab | Maschine zum falten oder umbiegen van schuhleder |
| DE69417253T2 (de) * | 1993-11-09 | 1999-07-08 | Societe De Mecanique Magnetique, Saint-Marcel | Montage und antriebsvorrichtung einer spindel, insbesondere einer textilspindel |
| EP1156141A1 (de) | 2000-05-18 | 2001-11-21 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Einzelspindel-antriebsvorrichtung mit Vibrationsdämpfungsmitteln |
| DE102006008339A1 (de) * | 2006-02-23 | 2007-08-30 | Saurer Gmbh & Co. Kg | Aufspulmaschine |
| CH701482A2 (de) | 2009-07-16 | 2011-01-31 | Rieter Ag Maschf | Spindellagerung. |
| US20140300233A1 (en) * | 2013-04-03 | 2014-10-09 | Fanuc Corporation | Rotator member to be fixed to rotary shaft of rotary electric machine, rotator including rotator member, and method for manufacturing rotary electric machine and rotator |
| DE102014119131A1 (de) * | 2013-12-27 | 2015-07-02 | Fanuc Corporation | Rotor eines Elektromotors mit Magnet-Halterungs-Vorrichtung und Elektromotor mit dem Rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112016004709A5 (de) | 2018-06-28 |
| CH711652A1 (de) | 2017-04-28 |
| JP3219826U (ja) | 2019-01-31 |
| CN208594356U (zh) | 2019-03-12 |
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