EP2754228A2 - Moteur électrique comprenant un carter divisé et le stator en segments - Google Patents

Moteur électrique comprenant un carter divisé et le stator en segments

Info

Publication number
EP2754228A2
EP2754228A2 EP12787433.7A EP12787433A EP2754228A2 EP 2754228 A2 EP2754228 A2 EP 2754228A2 EP 12787433 A EP12787433 A EP 12787433A EP 2754228 A2 EP2754228 A2 EP 2754228A2
Authority
EP
European Patent Office
Prior art keywords
stator
segments
housing
air gap
windings
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.)
Withdrawn
Application number
EP12787433.7A
Other languages
German (de)
English (en)
Inventor
Christian Schiller
Peter Petereit
Rüdiger Schäfer
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP2754228A2 publication Critical patent/EP2754228A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/50—Disassembling, repairing or modifying dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/15—Sectional machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine

Definitions

  • the invention relates to an electrical machine having a housing, a disposed in the housing stator and, disposed within the stator rotatable rotor, wherein the housing min ⁇ least comprises at least two housing segments and the stator two stator segments, and a method for producing such a machine.
  • Such an electric machine or such a method can be used, for example, in tube mills.
  • the motors required for their drive can be particularly powerful and have diameters of several meters.
  • a ring motor of a tube mill which consists inter alia of a plurality of stator segments and housing covers and a rotor, wherein the ring motor between the stator and the rotor has an air gap.
  • the stator segments each have a Wicklungssys ⁇ system and simultaneously form the support structure of the Ringmo ⁇ tors.
  • the invention has for its object to provide an electric machine, which has favorable transport and installation properties at high output and despite normal manufacturing tolerances of their components allows the achievement of a precisely adjustable air gap.
  • This object is further achieved by a mill of demanding 6. Since mill drives make special demands on Leis ⁇ tung, torque, and stability of the support structure, a use of the electric machine there is particularly advantageous ⁇ way. Finally, this object is also achieved by a method for producing an electrical machine according to claim 7.
  • the stator and the housing are two separate machine components which are each subdivided into segments. This allows the construction of particularly slightest ⁇ tung strong and large electric machines by assembling the respective segments.
  • Such powerful Ma ⁇ machines are in particular used as a direct drive, for example in mill drives.
  • An important aspect of the present invention is the separation of the stator from the casing so that the electrical machines Ma ⁇ housing segments and separate stator segments comprising. Because especially powerful machines are not in one
  • the mechanically detachable connection is used inter alia to initiate the required counter torque of the motor from the stator into the support structure of the housing and can in particular be designed positive or non-positive.
  • the connection for example in the form of a screw connection, is an assembly of the machine relatively easy to bewerkstelli ⁇ conditions.
  • stator segments are ver ⁇ used so that they are relatively small and are produced in larger quantities.
  • the connection can be used for adjusting the stator segments. This is particularly advantageous if the housing segments and stator segments are used comparatively coarse Vietnamese toysstoleran ⁇ zen and can serve the mechanically releasable connection to compensate for the tolerances. Even with a deformation caused by gravity of the housing, this is an advantageous aspect, especially for large and heavy machines, as can also be readjusted. Furthermore, the production costs can be reduced by the larger number of stator segments and by the large manufacturing tolerances.
  • stator segments can be replaced without much effort at a ⁇ OF INVENTION to the invention the electrical machine.
  • stator segments can be such ges ⁇ taltet that they each include electrical windings or coils and impregnation of the windings or
  • Coils is performed only after their application to the respective stator segments.
  • the impregnation can be carried out, for example, as a vacuum pressure impregnation.
  • This initially allows the not yet impregnated windings to be applied to the respective stator segment, wherein a plurality of windings can certainly be applied.
  • the windings may for example be designed as coil, loop, rod or tooth windings.
  • at least two of the stator segments can be fixed to one of the housing segments. By fixing at least two stator segments to a housing segment, it is possible to make the housing comparatively ⁇ as grobgliedrig, so that the housing is divided into a few housing segments. Thus, the at ⁇ paid is reduced by partial joints between the housing segments.
  • stator segments on the housing segments can be carried out more precisely, since the stator can be subdivided into finer stator segments.
  • a wide ⁇ rer advantage of the finer subdivision of the stator such that the stator segments can be produced in a standardized form and Her ⁇ out costs can be reduced due to the higher number, and the lower development or adjustment requirements.
  • a respective air gap between the respective stator segments and the rotor is adjustable in such a way by means of the particular compound, the air gap for each of the Statorseg ⁇ elements is equal to a predetermined air gap.
  • the air gap for each stator segment is a separately ⁇ adjustable.
  • the air gap for each stator segment is a separately ⁇ adjustable.
  • the housing segments and the stator can be selected, which reduces the manufacturing costs of the housing segments and the Statorseg ⁇ ments.
  • stator segments each comprise at least two windings, which are each part of a total winding of the stator.
  • stator segment By applying at least two windings on each stator segment, the production of the entire stator is simplified ver ⁇ .
  • a coil is first wound, drawn and insulated, for example by bandaging. Subsequently ⁇ ated the coil is impregnated and finally employed isolated and the impregnated coil in the stator.
  • the simplification lies in the fact that the respective stator segment is first with at least two windings, such as windings 20, is provided, which already may have a isolie ⁇ Rende bandaging. Thereby, the impregnation of at least two or more Wicklun ⁇ gene in a single step by impregnating the entire stator segment together with the windings applied can be effected, which simplifies the production and makes it more cost-effective.
  • the stator segment including windings for this purpose has such a spatial extent that it can be impregnated in a single operation, in particular by introducing it into a vessel for carrying out a vacuum pressure impregnation.
  • the impregnation of stator segments together with windings which have not yet been impregnated enables an overall faster impregnation of the windings, in particular in comparison with the impregnation of individual windings in the manufacture of larger motors.
  • the advantage is particularly evident when an electric machine is particularly large and powerful. For example, such machines may have about 600 windings which have been previously impregnated individually and only then assembled into a stator. It is now possible, the windings 600, such that windings 50 come to 12 to stator defending ⁇ len on each stator segment, which are impregnated together in each case in one step.
  • the electric machine has a power of more than 10 MW.
  • the drive power can also be in the range of 20 MW to 40 MW.
  • the present invention can be transferred from rotary electric machines to linear electric machines, for example, to linear synchronous motors.
  • rotary electric machines for example, to linear synchronous motors.
  • linear electric machines for example, to linear synchronous motors.
  • FIG. 2 shows a detail of a schematic representation of an embodiment of an electric machine according to the invention.
  • Figure 1 shows an electrical machine according to the prior Tech ⁇ technology.
  • a ring motor 10 has a stator 1 with stator segments 4 and a rotor 2, wherein an air gap 5 is arranged between the stator 1 and the rotor 2.
  • the stator segments 4 are connected to one another via separation points 12, wherein the ring motor 10 rests on a foundation 13 via two bearing surfaces.
  • the stator segments 4 have a Wicklungssys ⁇ TEM having teeth 14, grooves 15 and tooth coils 16 summarizes environmentally.
  • FIG. 2 shows a section of a schematic representation of an embodiment of an electrical machine according to the invention 10.
  • Several stator 4 are fi xed in each case by means of a me ⁇ mechanically releasable connection to a housing segment.
  • a cylindrical housing is formed by a plurality of housing segments 3 and a cylindrical stator 1 by a plurality of stator segments 4, wherein based on the connec ⁇ tion, a desired stator inner diameter can be adjusted.
  • an air gap 5 between the stator 1 and a cylindrical rotor 2 is adjustable, wherein the adjustable distance between the rotor 2 and the respective stator 4 by means of the mechanically releasable connection, for example in the form of a screw, is selectable and usefully for each stator 4 equal is selected and set.
  • the housing segments 3 are comparatively robust and large components, since they must pass on the required counter torque of the electric ⁇ machine 10, which is supplied to them via the connection of the stator 4.
  • the housing is made up of comparatively few housing segments 3, which are chosen to be comparatively large, since connecting points between housing segments 3 weaken the carrying structure.
  • the stator 4 can on the one hand small Ver ⁇ be chosen to be equal to the housing segments 3, so that a plurality of stator segments 4 fi respectively to a housing segment 3 are xed. Since a plurality of windings may be applied to the respective stator segments 4, the stator 4 on the other hand are guided in size from ⁇ compared to the windings. For example, several dozen Wick- lungs or coils on a stator 4 is applied to ⁇ .
  • the size of the respective stator segments 4 together with the depending ⁇ nosti applied windings is preferably dimensioned such that in each case the entire stator segment 4 together with up ⁇ brought windings can be impregnated in a single step by means of vacuum-pressure impregnation, for which it in common for this process vessels must be feasible.
  • the invention relates to an electric Ma ⁇ machine with a housing, a disposed in the housing Sta ⁇ tor and, disposed within the stator rotatable rotor, wherein the housing at least two housing segments and the stator comprises at least two stator segments, and a method for producing such Machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un moteur électrique comprenant un carter, un stator qui est disposé dans ce carter et un rotor rotatif qui est disposé dans le stator. Le carter comprend au moins deux segments de carter tandis que le stator comprend au moins deux segments de stator. Cette invention se rapporte en outre à un procédé de production de ce moteur. L'objectif de cette invention est de créer une machine électrique qui présente des propriétés de transport et d'installation avantageuses pour une puissance de sortie élevée et qui, bien que ses composants présentent des tolérances de finition courantes, permet la création d'un entrefer ajustable avec précision. A cet effet, chacun des segments de stator peut être fixé individuellement à un des segments de carter au moyen respectivement d'au moins une liaison libérable mécaniquement.
EP12787433.7A 2011-12-15 2012-11-14 Moteur électrique comprenant un carter divisé et le stator en segments Withdrawn EP2754228A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011088660A DE102011088660A1 (de) 2011-12-15 2011-12-15 Elektrische Maschine mit Gehäuse- und Statorsegmenten
PCT/EP2012/072585 WO2013087330A2 (fr) 2011-12-15 2012-11-14 Moteur électrique comprenant des segments de carter et des segments de stator

Publications (1)

Publication Number Publication Date
EP2754228A2 true EP2754228A2 (fr) 2014-07-16

Family

ID=47189932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12787433.7A Withdrawn EP2754228A2 (fr) 2011-12-15 2012-11-14 Moteur électrique comprenant un carter divisé et le stator en segments

Country Status (8)

Country Link
US (1) US20150137653A1 (fr)
EP (1) EP2754228A2 (fr)
AU (1) AU2012351038B2 (fr)
BR (1) BR112014014123A2 (fr)
CA (1) CA2859270A1 (fr)
CL (1) CL2014001507A1 (fr)
DE (1) DE102011088660A1 (fr)
WO (1) WO2013087330A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2924847A1 (fr) 2014-03-28 2015-09-30 Siemens Aktiengesellschaft Machine électrique composée
EP2993766A1 (fr) 2014-09-08 2016-03-09 Siemens Aktiengesellschaft Refroidissement amélioré d'un moteur annulaire
EP3035500A1 (fr) 2014-12-18 2016-06-22 Siemens Aktiengesellschaft Segment de stator pour un stator segmenté, creux et cylindrique d'une machine électrique
CN108711966B (zh) * 2018-06-26 2019-12-06 新疆金风科技股份有限公司 发电机的转子组件及发电机
CN121461659A (zh) * 2026-01-06 2026-02-03 江苏嘉轩智能工业科技股份有限公司 环形电机、磨机和用于装配磨机的方法

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US3626219A (en) * 1970-05-21 1971-12-07 Leon R Lease Dynamo electric machine and method of making same
US3683218A (en) * 1971-08-16 1972-08-08 Harowe Servo Controls Inc Rotary electrical device
ATE52881T1 (de) * 1985-11-25 1990-06-15 Bbc Brown Boveri & Cie Verfahren zur herstellung der wicklung einer elektrischen maschine.
DE19608286B4 (de) * 1996-02-23 2004-02-12 Siemens Ag Belüftungssystem für den Ringmotor einer Rohrmühle
NZ335900A (en) * 1996-11-04 2000-12-22 Abb Ab A stator for a rotating electric machine and a method of manufacturing a stator
DK173641B1 (da) * 1998-12-15 2001-05-14 Bonus Energy As Generator, fortrinsvis til en vindmølle
CA2573089C (fr) * 2004-07-19 2011-11-22 Rotatek Finland Oy Machine electrique rotative basee sur le principe d'une machine lineaire
US7692357B2 (en) * 2004-12-16 2010-04-06 General Electric Company Electrical machines and assemblies including a yokeless stator with modular lamination stacks
DE102005029895A1 (de) * 2005-06-27 2007-01-04 Siemens Ag Direktantrieb für Großantriebe
DE102007005131B3 (de) * 2007-02-01 2008-01-31 Siemens Ag Ringmotor
EP2063115B1 (fr) * 2007-11-26 2019-06-05 Siemens Gamesa Renewable Energy A/S Générateur et éolienne à entraînement direct
EP2211443B1 (fr) * 2009-01-23 2016-05-18 Siemens Aktiengesellschaft Fabrication de segments avec des bobines spéciales aux extrémités pour la connexion des segments
ES2523775T3 (es) * 2011-01-25 2014-12-01 Siemens Aktiengesellschaft Molino tubular

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2013087330A2 *

Also Published As

Publication number Publication date
CL2014001507A1 (es) 2014-10-24
AU2012351038A1 (en) 2014-05-29
DE102011088660A1 (de) 2013-06-20
BR112014014123A8 (pt) 2017-06-13
BR112014014123A2 (pt) 2017-06-13
WO2013087330A3 (fr) 2014-05-01
US20150137653A1 (en) 2015-05-21
WO2013087330A2 (fr) 2013-06-20
AU2012351038B2 (en) 2016-06-09
CA2859270A1 (fr) 2013-06-20

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