EP2114573A1 - Moteur annulaire - Google Patents

Moteur annulaire

Info

Publication number
EP2114573A1
EP2114573A1 EP08707937A EP08707937A EP2114573A1 EP 2114573 A1 EP2114573 A1 EP 2114573A1 EP 08707937 A EP08707937 A EP 08707937A EP 08707937 A EP08707937 A EP 08707937A EP 2114573 A1 EP2114573 A1 EP 2114573A1
Authority
EP
European Patent Office
Prior art keywords
stator
tooth
ring motor
rotor
permanent magnets
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Withdrawn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
EP08707937A
Other languages
German (de)
English (en)
Inventor
Markus HÖSLE
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
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 filed Critical Siemens AG
Publication of EP2114573A1 publication Critical patent/EP2114573A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/24—Driving mechanisms
    • 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
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/38—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
    • H02K21/44—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
    • 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 invention relates to a ring motor as a direct drive, in particular for ore mills or tube mills with a stator and a rotor designed as a rotating mill body.
  • the dynamoelectric drive motor is arranged concentrically with the mill body, the rotor and stator having comparatively large diameters in the range of more than 5 m (US Pat. No. 3,272,444).
  • the shaft of the rotor is thereby formed by the mill body itself, which is provided with an annular flange for attachment of the active rotor parts.
  • the rotor has several segments which carry one or more magnetic poles. Each of these segments is provided with a support web extending in the circumferential direction of the rotor, which is mechanically connected to the annular flange of the mill body.
  • the stator is provided for energization with electric current. It has a distributed over the grooves of the stator winding system.
  • the secondary part has individual rotor segments which are provided with permanent magnets or windings which can be energized.
  • the ring motor on a primary part and a secondary part, each with active magnetic means, which are to be used to generate a magnetic field.
  • Active magnetic means are for example energizable windings, permanent magnets or windings in which by means of induction an electric
  • the object of the invention is to provide a ring motor which can be produced, transported and mounted in a simple manner on the system in a simple manner. All electrical tests should be feasible at the factory without having to insert and check additional windings on the system. Furthermore, the assembly of rotor poles to be simplified to facilitate on-site magnetization or the assembly of pre-magnetized parts.
  • a ring motor as a direct drive, in particular for ore mills or tube mills with a stator and a rotor designed as a rotating mill body, wherein the stator has at least two different excitation systems and the mill body has a toothed structure, with the exciter systems of the stator interact electromagnetically and thus causes a rotation of the mill body.
  • the stator now has two different excitation systems which have hitherto been distributed to the stator and rotor.
  • the complicated handling and assembly with pre-magnetized poles on the mill body and / or the magnetization of these rotor segments on site are eliminated.
  • the stator is provided with a winding system which is designed as a toothed coil system, wherein each tooth, or viewed in the circumferential direction every second tooth of the stator has its own form of coil. This allows the electrical tests of the winding system of a stator segment to be completed at the factory.
  • the separation points of the stator segments are provided in a groove, preferably centrally in a groove, so that the assembly of the stator segments result in no flux changes due to missing tooth coils.
  • the separation point is provided in a unwound tooth.
  • the toothed structure of the rotor is made massive and is only attached to the mill body in a simple manner, for example by screw. A magnetization or assembly with pre-magnetized pole elements on the mill body is thus no longer necessary.
  • the toothed structure may also be laminated to avoid eddy currents.
  • the sheets or sheet metal sections are axially layered.
  • the teeth on the mill body in the axial direction is made oblique to locking phenomena between the poles of the rotor and the To avoid or at least reduce stator, which otherwise act as torque fluctuations in the drive system.
  • FIGS. 5 to 8, 12, 14 to 18 show different embodiments of the stator and the rotor, shown in principle
  • FIGS. 9, 10, 11, 13 representations for explaining the physical relationship of the structure according to the invention.
  • FIG. 1 shows a schematic, perspective view of the basic elements of a ring motor 1 with its stationary part, in which the stator 6 is located and the rotating part, in which a rotor 12 is located on a mill body 10, not shown.
  • the stator 6 which has axially laminated sheets, is fastened to a frame 2 via support elements 5, which are suitable both as a torque support and for vibration damping.
  • the end faces of the stator 6 are provided with covers 3 to form a cooling channel 7 between the winding head of the winding system 4 and the cover 3, which is advantageously suitable for air cooling in particular the winding heads.
  • the air flow is thereby by a or generates a plurality of fans which are arranged on the circumference of the stator 6.
  • FIG 2 shows the ring motor 1 in a basic cross-sectional view, wherein the ring motor 1 rests with two bearing surfaces on a foundation 15, so that the stator 6 of the ring motor 1 is suspended freely on the foundations 15.
  • the mill body 10 is connected via bearings not shown with a foundation, which are not essential to the understanding of the invention and therefore not shown in detail.
  • the rotor 12 On the mill body 10 there is a toothed structure 20 as the rotor 12.
  • the rotor 12 is thus, in the circumferential direction, divided into individual rotor segments 21, which are easy to transport and to be mounted on the mill body 10.
  • the rotor segments 21 are solid, that is to say integral or laminated, and / or, with regard to the axial profile of the tooth structure 20, with respect to the axis 33, they are made bevelled.
  • An oblique course of the tooth structure 20 reduces the torque ripple, resulting in a more uniform rotation of the mill body 10.
  • stator 6 is executed encapsulated on the cover 3, and in order to dissipate the heat targeted individual fans 22 are distributed in the circumferential direction.
  • These fans 22 are shown schematically and ensure compared to a centrally located fan due to their number equalization of cooling power.
  • the cover 3 further protects, in particular, the stator 6 from soiling, which could impair the dielectric strength of the winding system 4.
  • the stationary part of the ring motor 1 is divided by way of example into four stator segments 23, wherein the individual stator segments 23 can be mechanically connected to one another via separation points 24.
  • the stator 6 of the ring motor 1 is divided according to FIG 2 in four stator segments 23, since the stator 6 as a whole is no longer transportable due to its dimensions and thus must be divided into individual segments.
  • the winding system 4 is advantageously constructed by tooth coils 25.
  • the toothed coils 25 each comprise only one tooth 27, so that, as shown in FIG. 2, only one outgoing or one return conductor of a toothed coil 25 is present per groove 26. This results in teeth 27 which are surrounded by a tooth coil 25 and there are teeth 28 which are not surrounded by a tooth coil 25. Thus, viewed in the circumferential direction, a change occurs between wound and unwound teeth. The separation point 24 thus passes through the unwound tooth 28.
  • the unwound teeth are as wide as the unwound teeth in terms of their air gap facing side, or made narrower. Furthermore, the unwound teeth are made integral with the sheet metal of the respective stator segment, or designed as a single part, so that it can be positioned in a yoke back of the stator segment.
  • each tooth 27 is wound, so that in each groove 26 return conductors of different tooth coils 25 are located.
  • the separation point 24 is positioned so that it passes centrally through a groove 26 and thus in this separation groove in the assembled state of Ring motor 1 return conductor of different tooth coils 25 are located.
  • the complete winding system 4 can be inserted into the respective stator 23 in the factory, potted, tested and then transported to the system.
  • each stator segment 23 can already be completely provided in the factory with the winding system 4 in the grooves 26 and the permanent magnet (s) in or on the stator 6 and subjected there to a quality and insulation test.
  • a straight, that is, non-curved presentation form is selected, which, however, does not differ in technical-physical terms from a curved shape, such as that underlying a ring motor 1.
  • the rotor 12 according to the invention has a tooth structure 20 according to FIG. 5, which is laminated in the area of a rotor base body 29 as well as in the area of the bolt 30.
  • the permanent magnets 31 are arranged on the stator 6 or stator segment 23. The arrangement of the permanent magnets 31 on the stator segment 23 in the air gap plane is executed, in particular strip-shaped.
  • the permanent magnets 31 are in this longitudinal flow variant substantially parallel to the bars
  • the permanent magnets 31 may be specifically positioned in a kind of inclined position relative to their actual axial course.
  • This skew is determined by the sheet metal section and thus the axial profile of the grooves 26.
  • the tooth structure 20 is produced from sheets which are stacked one behind the other over the axial length of the rotor 12.
  • the respective sheets of a rotor segment 21 with rotor base body 29 and bolt 30 are made of one part, ie in one piece. The successive stacking of the sheets results in the tooth structure 20 of the rotor segment 21 with the bars 30.
  • the type of sheet metal is indicated in FIG.
  • the tooth structure 20 of the rotor 12 is constructed in the circumferential direction by rotor segments 21, so that a rotor segment 21 is adjacent to the next rotor segment 21. Such further in the direction of movement so circumferentially adjacent rotor segments 21 are not shown in the illustration of FIG 5.
  • the illustration according to FIG. 5 furthermore shows the permanent magnets 31.
  • the permanent magnets are NS permanent magnets or SN permanent magnets. These permanent magnets 31 extend, for example, over an entire axial laminated core width 61 of the stator 6. In order to reduce the magnetic scattering, pole gaps 62 are provided.
  • the stator 6 is formed in a further embodiment according to FIG 6 such that it has the air gap facing pole pieces 55. The pole pieces 55 widen the bearing surface for permanent magnets 31. This makes it possible to increase the power output of the ring motor 1.
  • Each strand U, V, W is intended for one phase of a three-phase network.
  • the required phase shift is achieved by the geometric offset of the strands with each other.
  • the geometric offset ⁇ x corresponds to 120 ° electrically for an example three-stranded machine.
  • Each strand U, V and W is not only a tooth coil 25 of the winding system 4 is assigned, but there are two or more tooth coils 25 for each strand U, V and W of the ring motor 1 is provided.
  • the tooth structure 20 is designed in one piece per rotor segment 21.
  • FIG. 7 explicitly shows the ring shape of a ring motor 1 which is possible according to the invention.
  • the ring motor 1 which can be designed as a synchronous motor, has a stator 6 and a rotor 12.
  • the rotor 12 is rotatable about an axis 33, which is also the axis of the mill body 10 not shown in this case.
  • the stator 6 is reversing
  • the stator segments 23 abut against each other at the separation points 24 and are mechanically connected to one another there.
  • FIG. 8 shows a detailed detail from the representation according to FIG. 7.
  • FIG. 9 shows a section of the stator segment 23 and the tooth structure 20 of a rotor segment 21. This detail shows schematically how magnetic fields can be divided in a stator 6, whereby the shape of a side view is selected.
  • a winding of the winding system 4 is shown.
  • the section of the stator 6 and the stator 6 are shown.
  • Tooth structure 20 are divided into sections.
  • the stator 6 has primary sections 50, 51, 52 and 53, these primary sections relating to the permanent magnets 31.
  • these sections are regions in which, corresponding to the magnetization direction of the permanent magnets 31, the magnetic flux either extends away from the rotor segment 21 or towards the rotor segment 21. The course is shown by arrows 38.
  • the sum of all linked with the winding system 4 magnetic fluxes forms a chain flow ⁇ .
  • the Verket- flow is mainly generated by the permanent magnets, which can form a magnetic yoke on the rotor segment 21.
  • the flow arrows 36, 37 of different lengths show, for each permanent magnet 31, the flux linked to the winding system 4 (tooth coil).
  • the rotor segment 21 has sections corresponding to the existing bars 30. These secondary sections 40, 41, 42 and 43 thus correspond to the sections in which a latch 30 is present or absent.
  • a magnetic flux is feasible.
  • a magnetic excitation flux which is caused, for example, by a north-south permanent magnet, closes via the bolt 30 and the stator 6 in a section 50 in connection with the section 40.
  • stator 6 points behind a first north South permanent magnet (NS permanent magnet) on a further permanent magnet, which is magnetized in the opposite direction, so that this is an SN Permanent magnet is.
  • NS permanent magnet north South permanent magnet
  • SN Permanent magnet an SN Permanent magnet
  • the illustration according to FIG. 9 indicates the magnetic excitation flux 36, 37 at the time and for the position of the stator segment 23 and rotor segment 21, in which a current in the winding system 4 has a zero crossing.
  • the position-dependent course of the magnetic exciter flux or the induced voltage in the winding and the power of an energized motor converted thereby are shown in FIG. 11.
  • the illustration according to FIG. 11 shows in three graphs the magnetic interlinkage flux ⁇ , the resulting inductive boilede voltage U 1 and the electrical power P e i, st r of a strand / a winding, over time.
  • the time course is represented by the indication of the phase position of the voltage.
  • the course of the flux ⁇ also reflects the course of the magnetic field, which can be generated, for example, by means of permanent magnets 31.
  • the current must be impressed in phase with the induced voltage.
  • FIG 10 From the third graph, on which the electric power is plotted, it can be seen that for a constant power ( ⁇ force), the number of motor strands m must be greater than and / or equal to two.
  • three strings are chosen because three-phase inverters require fewer semiconductor valves than two- or more-stringed ones.
  • multi-strand systems can also be used for applications in ring motors.
  • FIG. 13 serves to illustrate the technical principle and illustrates the generation of a force F.
  • an auxiliary model is presented.
  • a permanent magnet 31 is replaced by currents on one of these associated lateral surface.
  • the permanent magnet 31 can therefore be imagined, for example, by a cuboid, wherein on the side surfaces of the
  • Ashlar 44 as shown, current flows.
  • the permanent magnet 31 can be represented by a winding, the direction of the current within the winding being represented by a point 48 or a cross 47 according to the model.
  • the permanent magnet is reduced to the conductor cross-section of the equivalent currents. Substituted now in the side view of Stators the permanent magnets, the result is the following arrangement.
  • the magnetic field generated by the winding system 4 concentrates in the air gap 35 at the locations of the bars 30, which serve as flux guides, since here the magnetic resistance is the lowest. So the fictitious ladder lie in the field of the strand coil, reinforcing it on one side and weakening it on the other side.
  • the conductors "dodge" into the region of lower field strength, as indicated by the direction of the force F acting on the stator F in FIG 13. This relationship is also described by the "right-hand rule" in which the current, the magnetic field and the force F are at a right angle.
  • X ⁇ M / 2 of the stator 6 and rotor segment 21 to each other reaches the phase current, ie the current through the winding, so the tooth coil 25 is maximum.
  • FIG. 12 shows a stator segment 23 and a rotor segment 21, which represent a schematic part of a ring motor 1.
  • the rotor segment 21 is designed to be laminated both in the region of the rotor base body 29 and in the region of the bolts 30.
  • the arrangement of the permanent magnets 31 in the air gap plane is designed in strip form.
  • the permanent magnets 31 are aligned in this longitudinal flow variant substantially parallel to the bars 30 (flux guides).
  • the permanent magnets 31 and thus the course of the grooves 26 may be arranged inclined by a predeterminable angle with respect to their axial orientation.
  • the part of a stator segment 23 has a toothed coil 25, permanent magnets and straight, ie formed with parallel groove flanks wound teeth 27.
  • the permanent magnets 31 are NS permanent magnets or SN permanent magnets. These permanent magnets 31 extend over an entire laminated core width 77 of the stator 6, for example. However, the permanent magnets 31 may also be divided into a plurality of partial magnets in their axial extent and / or in their extent in the circumferential direction. This is particularly advantageous for reducing eddy currents within the permanent magnets 31.
  • FIG. 14 shows, in a schematic representation, a further possible embodiment of a ring motor 1.
  • the stator segment 23 has pole shoes 55.
  • the pole pieces 55 widen the bearing surface for permanent magnets 31. This can increase the power yield of the electrical machine see. Because by the enlargement of the stator segment 23
  • the area narrows, in which a winding system 4, in particular a toothed coil 25 in the stator 6 and stator 23 is inserted, the tooth is advantageously carried out with a winding body 56.
  • the winding body 56 has both a pole piece 55 and a winding neck 57.
  • a winding can be wound around the winding neck 57 or a prefabricated tooth coil 25 can be positioned, wherein the wound winding body 56 can then be positioned in the stator segment 23.
  • the winding body 56 is advantageously fixed by means of lugs or dovetail-like elements on the stator segment 23.
  • the winding is designated as a strand U of a ring motor 1.
  • Other motor strings for example V and W
  • the permanent magnets 31 generate the magnetic excitation fluxes whose sum forms the flux linkage ⁇ of the tooth coil 25.
  • the winding body 56 is also divided into two, in order to simplify the assembly of the toothed coils to ensure the stator 23.
  • the winding neck 57 forms a unit with the yoke back 65 and the pole is positioned and fixed on the winding neck 57 by the abovementioned fastening means after the toothed coil 25 has been mounted on the winding roll.
  • FIG 15 shows a schematic representation of a part of a stator and rotor segment 21 of a ring motor 1 with a longitudinal flux magnetic circuit. This corresponds to the representation GE measure FIG 14, wherein only the winding body 56 is integrally connected to the stator 23. As a result, the toothed coil 25 has to be dripped into the groove 26 via the slot slot 64.
  • the illustration according to FIG. 16 shows a multi-stranded arrangement of a ring motor 1.
  • Each strand is designed for one phase of a multi-phase current network, e.g. a three-phase network provided.
  • the required phase shift is achieved by the geometric offset of the strands with each other.
  • the geometric offset ⁇ x corresponds to 120 ° electrically for the illustrated three-stranded machine.
  • Each strand U, V and W of the stator segment 23 are associated with two tooth coil 25 in this illustration.
  • the number of strands and / or the number of tooth coils 25 per strand is basically not limited, but is limited by the practical feasibility upwards.
  • FIG. 17 shows a further embodiment of a ring motor 1, wherein 31 toothed magnets are used here as permanent magnets.
  • the toothed magnets 58 which are also permanent magnets, are located between e.g. braided soft iron material.
  • the further magnetic field 54 generated by the toothed magnets 58 is indicated by lines with arrows.
  • the magnetization direction 59 of the permanent magnets 31 is likewise illustrated by arrows.
  • Toothed magnets are positioned substantially centrally in a tooth and are substantially parallel to a coil axis of the tooth coil 25.
  • the tooth 27 is supported by a tooth trace. Ie 25 surrounded.
  • the magnetic excitation field is the additional magnetic field which is generated by means of the toothed magnets 58.
  • This constructive arrangement leads to the flux concentration at the air gap.
  • the flux concentration is determined by the magnetic circuit geometry. Influencing variables are, for example, the dimensions of the permanent magnets 31 and the sheet-metal section dimensions.
  • the magnetization direction 59 of the toothed magnets 58 (the toothed magnet is a permanent magnet 31) is mainly parallel to an air gap plane of the air gap.
  • the tooth pitch of the rotor segment 21 of the ring motor 1 according to FIG. 17 is not an integral multiple of the magnet pitch of the stator segment 23. This applies in particular to the mean value if the tooth or magnet pitch is not constant.
  • the winding system 4 in particular the arrangement of the tooth coils 25 is likewise designed in single or multi-stranded fashion.
  • the assignment of the tooth coils 25 to individual motor phases is dependent on the selected tooth pitch ratio between the
  • FIG. 17 shows a different tooth pitch at the teeth 27 of the stator 6 than at the teeth of the rotor 6, which are formed by bars 30.
  • a multi-phase ring motor 1 can be realized both for the same and for unequal tooth pitch on the stator 6 and rotor 12.
  • a same pitch is shown for example in FIG 14 and FIG 15.
  • FIG. 18 differs from the illustration according to FIG. 17 essentially in that, instead of toothed magnets 58, yoke magnets 60 are now used as a further means for generating further magnetic fields.
  • the yoke magnets 60 are also permanent magnets 31 and are positioned in the region of a yoke. The yoke is used to connect teeth 27. From the positioning of this mag- In comparison to FIG. 17, FIG. 18 also shows another excitation field.
  • FIGS. 17, 18 shows a stator 6 of a ring motor 1, which is constructed from individual teeth, wherein each tooth has a tooth coil and wherein the tooth elements are connected by magnetic elements.
  • the flow can be amplified and there are no permanent magnets or a further electrical excitation system on the Mühlenkör- per 10 provided. There, only the tooth structure 20 is present.
  • the ring motor 1 is designed as a direct drive of ore mills or tube mills, both in terms of the stator 6 and the rotor 12 in the manner of a segment, in the manner of a segment.
  • the rotor in the assembled condition i. when the rotor segments 21 mounted on each other on the mill body 10 are only a tooth structure 20 on.
  • This tooth structure 20 is formed by a rotor base body 29 and, in the direction of the air gap of the ring motor, radially pointing latches 30.
  • the tooth structure 20 of each Rotor segment 21 is made in one piece and solid, so to speak, forms an individual part.
  • tooth structure 20 of a rotor segment 21 can also be created by plates arranged axially one behind the other.
  • Each sheet is also made in one piece, rotor body 29 and bolt 30 of a sheet form a part.
  • both bars 30 and rotor body 29 are also executable as separate parts, regardless of whether the rotor segment 21, i. so that the items rotor body and bolt 30 solid and / or laminated are executed.
  • Rotor body 29 and executed as a separate part latch 30 laminated.
  • Rotor body 29 solid and bolt 30 made of laminated.
  • the stator 6 of the ring motor 1 is made up of stator segments 23, each stator segment 23 having toothed coils 25. At least one tooth coil 25 is located on each tooth or every other tooth. The teeth are thus all wound at least with one tooth coil 25 or, as viewed in the circumferential direction, only every second tooth is wound with at least one tooth coil 25 in each case.
  • the stator segment 23 is executed laminated or sintered.
  • the grooves of the stator 6 are either parallel flankig or at least the wound teeth have in the direction of air gap broadening of the pole pieces 55 on.
  • the toothed coils 25 are mounted on the teeth of the stator segment 23 from the later air-gap side via the pole shoes 25 and in the case of narrowed slot slots 64 by instillation or by forming a tooth as a winding body 56 in several parts. Either the pole shoe 55 is at the winding or the winding neck 57 can be positioned on the yoke back 65.
  • the permanent magnets 31 are located on the side facing the air gap or in the stator 6 in the teeth 27 as a toothed magnet 58 or in Joch Wegen as Jochmagnet 60 and are integrally or in several parts executable.
  • the direction of magnetization of the remanent magnets 31 is freely selectable, depending on the arrangement flow locks 32 are provided.
  • the pitch of the tooth structure 20 of the rotor 12 is an integer multiple of the magnet pitch of the stator 6 such as e.g. In FIG. 14 and FIG. 15, or else the tooth structure 20 of the rotor 12 is different from this integer multiple of the magnet division of the stator 6, as e.g. shown in FIG 16.
  • the tooth structure 20 is provided between the bars 30 with suitable material, e.g. filled with plastic to prevent dirt deposits.
  • the tooth structure 20 may be spaced apart from one another
  • Latches 30 are formed, wherein the existing gap between the bars 30 corresponds to the width of the bars 30. This gap can also be smaller or larger than the width of the bolt 30.
  • stator 6 stator segments 23, embodiments of the teeth of the stator 6, rotor 12, rotor segments 21, tooth structure 20, materials of stator 6 and rotor 12, embodiments of the permanent magnets 31, material and spacings of the bolt 30, etc. are in the realization a ring motor 1 in the MW range (from some to over 20 MW) on the embodiments already shown in any combination feasible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Food Science & Technology (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Crushing And Grinding (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

L'invention concerne un moteur annulaire (1) en tant qu'entraînement direct, en particulier pour des broyeurs à minerai ou des tubes broyeurs, comprenant un stator (6) et un rotor (12) formé en tant que corps de broyeur rotatif (10), le stator (6) présentant au moins deux systèmes d'excitation différents, et le corps de broyeur (10) présentant seulement une structure dentelée, qui interagit de manière électromagnétique avec les systèmes d'excitation du stator (6), et provoque ainsi une rotation du corps de broyeur (10).
EP08707937A 2007-02-01 2008-01-16 Moteur annulaire Withdrawn EP2114573A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007005131A DE102007005131B3 (de) 2007-02-01 2007-02-01 Ringmotor
PCT/EP2008/050447 WO2008092746A1 (fr) 2007-02-01 2008-01-16 Moteur annulaire

Publications (1)

Publication Number Publication Date
EP2114573A1 true EP2114573A1 (fr) 2009-11-11

Family

ID=38859721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08707937A Withdrawn EP2114573A1 (fr) 2007-02-01 2008-01-16 Moteur annulaire

Country Status (14)

Country Link
US (1) US8129881B2 (fr)
EP (1) EP2114573A1 (fr)
CN (1) CN101610849B (fr)
AR (1) AR065127A1 (fr)
AU (1) AU2008209912B2 (fr)
BR (1) BRPI0806933A2 (fr)
CA (1) CA2677020A1 (fr)
CL (1) CL2008000288A1 (fr)
DE (1) DE102007005131B3 (fr)
MX (1) MX2009008091A (fr)
PE (1) PE20081748A1 (fr)
RU (1) RU2452578C2 (fr)
WO (1) WO2008092746A1 (fr)
ZA (1) ZA200903234B (fr)

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DE102007005131B3 (de) 2007-02-01 2008-01-31 Siemens Ag Ringmotor
AU2010282452B2 (en) * 2009-08-12 2013-11-21 Fluor Technologies Corporation Configurations and methods for liners in grinding mill with gearless motor drive
US10340778B2 (en) 2009-10-19 2019-07-02 Qm Power, Inc. Parallel magnetic circuit motor
DE102010039590A1 (de) * 2010-08-20 2012-02-23 Siemens Aktiengesellschaft Segmentierte elektrische Maschine
AU2011357265B2 (en) * 2011-01-25 2015-04-02 Innomotics Gmbh Tube mill
EP2486983A1 (fr) * 2011-02-10 2012-08-15 ABB Schweiz AG Noyau de stator pour un entraînement sans engrenage d'un broyeur tubulaire
ES2378634B2 (es) * 2011-09-20 2012-10-10 Universidad Politécnica de Madrid Procedimiento de mejora del rendimiento del accionamiento de máquinas existentes accionadas mediante piñón-corona dentada y sistema de accionamiento.
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RU2009132543A (ru) 2011-03-10
MX2009008091A (es) 2009-08-12
PE20081748A1 (es) 2009-01-31
CL2008000288A1 (es) 2009-09-25
BRPI0806933A2 (pt) 2014-05-06
AU2008209912A1 (en) 2008-08-07
WO2008092746A1 (fr) 2008-08-07
US8129881B2 (en) 2012-03-06
CN101610849B (zh) 2012-07-04
US20100033035A1 (en) 2010-02-11
RU2452578C2 (ru) 2012-06-10
AR065127A1 (es) 2009-05-20
ZA200903234B (en) 2010-04-28
CA2677020A1 (fr) 2008-08-07
AU2008209912B2 (en) 2012-02-02
DE102007005131B3 (de) 2008-01-31
CN101610849A (zh) 2009-12-23

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