WO2013113353A1 - Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif - Google Patents

Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif Download PDF

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Publication number
WO2013113353A1
WO2013113353A1 PCT/EP2012/051413 EP2012051413W WO2013113353A1 WO 2013113353 A1 WO2013113353 A1 WO 2013113353A1 EP 2012051413 W EP2012051413 W EP 2012051413W WO 2013113353 A1 WO2013113353 A1 WO 2013113353A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
electrical
electric drive
drive device
shaft
Prior art date
Application number
PCT/EP2012/051413
Other languages
German (de)
English (en)
Inventor
Jens Makuth
Markus Reinhard
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/EP2012/051413 priority Critical patent/WO2013113353A1/fr
Publication of WO2013113353A1 publication Critical patent/WO2013113353A1/fr

Links

Classifications

    • 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
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • 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

Definitions

  • the present invention relates to an electric An ⁇ drive device. Moreover, the present OF INVENTION ⁇ dung relates to a drive arrangement comprising at least one electrical drive means. Finally, the present invention relates to a conveyor system with at least one Antriebsanord ⁇ voltage.
  • Electric drives for conveyor systems such as runways or belt, offer great potential for energy savings when both full load and in sectionlastbe ⁇ drove a good efficiency is achieved.
  • This can be achieved at play as ⁇ with so-called coreless electric machines as arise in these no speed-dependent magnetization losses and iron losses.
  • coreless electric machines as arise in these no speed-dependent magnetization losses and iron losses.
  • Kup ⁇ ferhimmare the ohmic resistance
  • the losses fall quadratically with the reduced electric current.
  • the electric driving device of the invention comprises a secondary part having a plurality of permanent magnets, a primary part having a plurality of windings which surround at least the permanent magnets of the secondary part in regions, wherein the secondary part is relatively be ⁇ wegbar to the primary part, a shaft element mechanically connected to the secondary part is connected and a housing in which the primary part and the secondary part are arranged, wherein the housing has a housing connection device with which the electrical drive means is mechanically connectable to a housing of a similar electric drive means and wherein the shaft member comprises a shaft connection device, with which the electrical Drive device with egg ⁇ nem shaft element of a similar electric drive device is mechanically connected.
  • the electrical drive device can be formed in particular Ba ⁇ sis a coreless electric machine, the AI is known for example from EP 1,858,142. Viewed tech ⁇ cally, these are a field-oriented driven electric motor with permanent magnets.
  • This electrical machine is characterized by the special shape of the coils, which is derived from a plunger coil.
  • the electric machine may be designed as a linear motor, but it is preferably designed as a rotary electric machine.
  • the electrical machine described above, which is also referred to as Doppelspulenaktor is characterized ⁇ to that by a very flat disc-shaped design. So ⁇ with the primary part and the secondary part of the electric drive device can be accommodated in a cylindrical or disc-shaped housing with a small width in the axial direction.
  • the electric drive device can be arranged in a cylindrical or disk-shaped housing.
  • a cuboid housing with a ge ⁇ wrestle width is also conceivable.
  • two or more electrical drive means can be connected to each other axially. In this case, the torques or the forces that are provided by the individual drive devices add up.
  • the housings of the electrical drive devices which are preferably constructed identically, have a housing connection device with which the housings of two or more electrical drive devices can be mechanically firmly connected.
  • the housings are non-rotatably connected.
  • the mechanical connection also keeps the weight of the motors in flange mounting.
  • identical refers to the geometric shape of the housing and the shaft member.
  • identical be ⁇ does not rely on the performance of the drive devices.
  • the shaft elements have a corresponding shaft connection device with which the shaft elements of at least two electric drive devices can be mechanically (rotationally) fixed to one another in the axial direction.
  • a corresponding shaft connection device with which the shaft elements of at least two electric drive devices can be mechanically (rotationally) fixed to one another in the axial direction.
  • the housing connecting device comprises a recess on a first end side of the housing and a protrusion on one of the first opposite, second end side of the housing.
  • the housing of the electrical Antriebsein ⁇ direction can, for example, at a first end face a corresponding recess, have a hole or a hole.
  • At a second end face may be arranged on the housing a corresponding elevation, a projection or a bolt.
  • a corresponding Ge ⁇ threaded bolts can be used, for example, which is attached to a thread provided for this purpose on the second end of the housing.
  • the shaft connecting device comprises a recess on a first end side of the shaft element and a protrusion on one of the first opposing second end side of the shaft element.
  • a force ⁇ positive or a positive connection is conceivable for the mechanical connection of the shaft members.
  • a formschlüs ⁇ sige connection between two adjacent wave elements is preferable.
  • the shaft element or the shaft protrudes beyond the dimensions of the housing on one end face.
  • This part of the shaft element could, for example, have a quadrangular or a hexagonal cross-section.
  • this part of the Wellenele ⁇ ment could have the shape of a Torx screwdriver.
  • the shaft element could terminate flush with the housing of the electric drive device and via a corresponding positive reception or Ausspa ⁇ tion a positive connection with a shaft element allow the adjacent electric drive device.
  • the Wellenele ⁇ ment of the electric drive device is designed such that it is flush with both sides of the housing ⁇ closes off. Then, on both end sides of the corrugated Enele ⁇ ments, for example, in the form ei ⁇ ner square socket could be a corresponding receptacle, can be provided.
  • the shaft elements of adjacent electric drive devices could then be mechanically connected to each other via corresponding square pins for torque transmission.
  • the shaft member may be formed such that it projects beyond the housing on both end sides.
  • the shaft elements of adjacent electric drive means with corresponding couplings can be mechanically non-rotatably connected.
  • two or more electrical Antriebseinrich ⁇ lines are mechanically connected to one another in a simple manner.
  • the electrical drive device comprises an electrical input element on a first end side of the housing and an electrical output ⁇ element on one of the opposite, second end face, wherein the electrical input element and the electrical output element are electrically connected to the winding of the primary part.
  • the respective electrical drive devices preferably have a corresponding electrical feedthrough, with which adjacent electric drive devices can be electrically connected to one another. This can be made possible, for example, by contact-protected sockets.
  • the electrical ⁇ rule terminals of the drive means which are designed in particular as three phases are, in each case between the electrical input and the electrical output element element of the respective drive device connected or looped through.
  • the electrical input and output elements can be designed such that at the same time an electrical Verbin ⁇ manure comes with the mechanical Ver ⁇ bind adjacent drive elements about. This can be made possible, for example, with entspre ⁇ sponding electrical contact elements on one end face of the housing and associated electrical connectors on the other end side of the housing. Thus, it is sufficient to connect one of the electric drive devices to an electrical power supply device in order to operate all interconnected electric drive devices.
  • the electrical supply and other conductors can be looped through the individual electrical drive means or additional electrical input and output elements can be provided. For example, corresponding electrical connections for the grounding cable, a connection for the neutral point or a corresponding temperature sensor can be provided.
  • the housing and / or the shaft element preferably have a marking for identifying the position of the poles of the electric drive devices.
  • the individual electrical drive devices In order to enable field-oriented operation of at least two electric drive devices, which are mechanically connected to one another, the individual electrical drive devices have the same number of poles. In addition, make sure that the electrical drive devices are connected to each other so that they have the same pole position. Ie. the permanent magnets should all be aligned identically to a position on shaft elements. In order to prevent twisting during assembly of two adjacent electrical drive means, a corresponding optical Markie ⁇ tion on the housing and / or the shaft member may be provided.
  • At least two electrical Antriebsein ⁇ directions which are mechanically connected to each other, on be operated in a simple manner and reliably with a common Umrich ⁇ ter.
  • the connecting elements of the shaft and the housing can also be configured so that a rotation of the pole position out ⁇ closed, since the elements can be connected in the correct (field oriented) position.
  • the drive arrangement according to the invention comprises at least one electric drive device.
  • the drive ⁇ arrangement comprises at least one functional device which is electrically and / or mechanically connected to the at least one electric drive device, wherein the at least one functional device is arranged in a housing, the ⁇ at least in two dimensions identical to the housing of the electric drive device is trained.
  • the at least one functional device may have a housing which is at least substantially identical in construction to the housing of the electric drive device.
  • the housing may be formed corresponding disc-shaped.
  • one or more functional devices can be electrically and / or mechanically connected in a simple manner, preferably in the axial direction, with at least one electric drive device.
  • a drive arrangement based on the principle of a modular system can be constructed in a simple manner.
  • one or more electrical drive means may be provided.
  • appropriate functional facilities can be added in a simple manner.
  • Such functional means may for example be a Fre ⁇ inverters, with the speed of the at least one electrical drive means may be adapted accordingly.
  • a frequency converter can be connected to an electrical supply device and adjust the voltage of the supply device with respect to the frequency and amplitude.
  • a function ⁇ ons comprise a gear, especially a planetary gear train ⁇ be. This gear can be mechanically with the shaft or be mechanically non-rotatably connected to the shaft element of at least one electric drive device.
  • the speed of the shaft can be easily adapted to ⁇ .
  • a further possibility is to provide a function ⁇ device in the form of a cooling device. This can be made possible for example by an air, water or oil cooling.
  • Such a cooling device can be positioned, for example, between the frequency converter and the at least one electric drive device. In this way, a heat transfer between these two devices can be prevented in a particularly simple manner.
  • a corresponding control device for example in the form of a PLC controller, a microcontroller or a corresponding computer, may be provided in a functional device.
  • an electrical connection device may be provided in a functional device, which is similar to the terminal box of a standard motor abandoned ⁇ det.
  • a rotary encoder such as a resolver, a sine-cosine encoder or a speedometer can be provided in the functional device.
  • one or more sensor devices may be provided in the functional device for condition monitoring, vibration detection or temperature detection.
  • a functional device with additional bearings. This is conceivable, for example, in the case of increased radial loads, for example in the case of a pulley. In addition, special requirements for rigidity can thus be met.
  • a functional device can serve for the thermal, electrical and / or vibration-related decoupling of the electrical drive devices from the design environment.
  • the functional device can be manufactured from the corresponding materials, which are suitable either as a thermal insulator, as an electrical insulator and / or for vibration damping.
  • such a functional device can assume corresponding design tasks.
  • a braking resistor or corresponding electrical energy store for an extended DC link in such a functional device.
  • a bar code reader or an RFID module can be provided in a functional device, for example.
  • a functional device is particularly suitable if the drive arrangement is used for the conveyor technology.
  • further applications can be provided in such a functional module.
  • a functional device may include a pump or egg ⁇ nen axial or radial fan.
  • the drive assembly includes at least two elekt ⁇ generic drive means, which are so mechanically connected that generated by the electrical drive means forces and / or torques are added together.
  • the electrical drive means are designed as rotary electric machines.
  • a plurality of electrical drive means can be connected to each other in the axial direction.
  • the torque provided by the individual electric drive devices is added.
  • Another possibility is to connect electrical linear drives together.
  • corresponding linear motors can be arranged parallel to each other.
  • connecting devices and / or the shaft connecting devices of the electrical drive means are formed in such a shape that mechanically interconnected electrical Antriebseinrich ⁇ obligations have the same position of the poles.
  • the housing-connecting device and / or the shaft connecting device can be designed such that adjacent drive devices can be connected only in a predefined position or alignment with each other. This can be preferred by the mechanical Forming the recesses and the associated elevations of the threaded connection devices and / or the shaft connecting devices are created.
  • the conveyor system according to the invention also has a drive ⁇ arrangement and is used to drive a roller conveyor of the conveyor system.
  • the housing of the at least one electric drive device and / or the housing of the at least one functional device is at least partially delimiting element and / or designed as contact protection for the roller tape.
  • the housing of the at least one electric drive device and / or the at least one functional device may be arranged on the lateral boundary of a runway such that the falling off of goods to be transported from the roller conveyor is prevented. Thus, no additional lateral boundaries must be provided to secure the cargo.
  • the conveyor system comprises a plurality of operating configurations, these can be alternie ⁇ rend arranged on the two sides of the roller conveyor, so that the transported ⁇ is particularly reliably secured before Herabfal ⁇ len.
  • the housing of the at least one electric drive device and / or the at least one functional device can be designed in such a way that it can be avoided a possible pinching in the roller belt.
  • the conveyor one or more Antriebsanord ⁇ voltages can be used.
  • the torque provided by the conveyor can be scaled accordingly. This can also be done temporarily if, for example, there are increased load requirements. This can be the case, for example, during the holiday season, when more suitcases have to be transported on one line or when more parcels run on a parcel line before Christmas.
  • the functional means may be coupled in one of the drive means with the electrical drive means in the other drive arrangements.
  • a Inverter module can be used for all electrical drive equipment.
  • the inverter module can be connected by means of ent ⁇ speaking electrical lines to the respective driving means.
  • FIGS. 3, 4, 5 show various embodiments of the recesses of the shaft connecting device and
  • FIG. 6 shows a perspective view of the drive assembly.
  • the electric drive device 10 comprises an electrical machine according to the prior art.
  • the drive device 10 comprises a secondary part 12 with a plurality of permanent magnets 14.
  • the permanent magnets 14 are arranged one behind the other in the circumferential direction.
  • the permanent magnets 14 are preferably arranged relative to one another such that each because north and south poles of the permanent magnet 14 are opposite.
  • the electric drive device 10 comprises a primary part 16 with a plurality of windings 18.
  • the windings 18 are formed or shaped such that they surround the permanent magnets 14 of the secondary part 12 at least in regions.
  • FIG. 2 shows a perspective view of the electric drive device 10 in the assembled or closed state.
  • the primary part 16 and the secondary part 12 are arranged in a corresponding housing 20.
  • the housing 20 in the present case has the shape of a cylinder.
  • the housing 20 is formed such that it has the smallest possible width in the axial direction.
  • With the electrical drive device 10 see a defined torque can be provided.
  • several of the electrical drive means 10 can be connected to each other in the axial direction. The torques provided by the respective drive devices 10 thus add up.
  • the housing 20 and the shaft members 22 must be mechanically miteinan ⁇ connected.
  • the first end face 24 opposite, second end face 26, the housing 20 has a corresponding, not shown here, survey.
  • a recess may be provided, for example, a hole or a hole.
  • a corresponding bolt can be provided.
  • the bolt can be inserted into the recess of an adjacent electric drive element 10.
  • a mechanically non-rotatable connection between the housings 20 of adjacent drive devices 10 can be created.
  • the shaft member 22 has a survey 34.
  • the elevation 34 is designed such that with the recess 30 of a be ⁇ adjacent electric drive device 10, a positive connection can be made possible.
  • the Figures 3, 4 and 5 show the recesses 30 of the corrugated Enele ⁇ ments 22 in various forms from guide.
  • the recess 30 in the shaft member 22 can have different gear tooth ⁇ voltage types with which a positive connection between adjacent electrical drive means 10 can be provided.
  • the drive arrangement 36 comprises an electric drive device 10 and five functional devices 38, 40, 42, 44, 46.
  • the electric drive device 10 and the functional devices 38, 40, 42, 44, 46 are in the present case connected to each other in the axial direction.
  • the housing of the electric drive device 10 and the housing of the functional devices 38, 40, 42, 44, 46 have the same diameter.
  • the functional devices 38, 40, 42, 44, 46 have different diameters. For example, can have a larger diam ⁇ ser one flange than the other functional devices 38, 40, 42, 44, 46.
  • the housing can have a different width in the axial direction.
  • the drive arrangement 36 shown here comprises a connection module 46.
  • This can be designed analogously to a terminal box ei ⁇ nes standard motor.
  • This electrical An ⁇ connection module 46 is used for electrical connection to an electrical supply means.
  • the drive arrangement 36 comprises an electric storage module 44. With such an electric storage module 44, for example, an extended intermediate circuit can be provided.
  • the drive arrangement 36 comprises a transmitter module 40.
  • This timer module 40 which is integrally flanged ⁇ to the drive means 10 may comprise for example a corresponding resol ver.
  • the drive assembly 36 includes an inverter module 42, with a corresponding frequency converter. With this inverter module 42, the electrical voltage can bezüg ⁇ Lich the amplitude and frequency are adjusted accordingly and transmitted to the electric driving device 10th
  • the drive assembly 36 includes a transmission module 38.
  • this gear module 38 may ⁇ example, a planetary gear may be provided, with which the rotational speed is adjusted ⁇ which is transmitted from the electric drive device 10 to the shaft 48th
  • the drive arrangement 36 can be used in particular for a conveyor system.
  • a roller conveyor of the conveyor system can be driven via the shaft 48.
  • a modular An ⁇ drive assembly 36 may be provided depending on the application or application in which the function ⁇ ons Huaweien 38, 40, 42, 44, 46 can be easily added and removed.
  • the torque provided by the drive arrangement 36 can be determined by the number of electrical drive devices 10 used in the drive arrangement 36.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un système d'entraînement électrique (10) équipé : d'une partie secondaire (12) ayant une pluralité d'aimants permanents (14); d'une partie primaire (16) ayant une pluralité d'enroulements (18) qui entourent au moins par zones les aimants permanents (14) de la partie secondaire (12), la partie secondaire (12) pouvant être déplacée par rapport à la partie primaire (16); d'un élément d'arbre (22) qui est relié mécaniquement à la partie secondaire (12); et d'un boîtier (20), dans lequel sont disposées la partie primaire (16) et la partie secondaire (12). Le boîtier (20) comporte un équipement de liaison de boîtier, avec lequel le système d'entraînement électrique (10) peut être relié mécaniquement à un boîtier (10) d'un système d'entraînement électrique de même type. L'élément d'arbre (22) comporte un équipement de liaison d'arbre, avec lequel le système d'entraînement électrique (10) peut être relié mécaniquement à un élément d'arbre d'un système d'entraînement électrique de même type.
PCT/EP2012/051413 2012-01-30 2012-01-30 Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif WO2013113353A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/051413 WO2013113353A1 (fr) 2012-01-30 2012-01-30 Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/051413 WO2013113353A1 (fr) 2012-01-30 2012-01-30 Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif

Publications (1)

Publication Number Publication Date
WO2013113353A1 true WO2013113353A1 (fr) 2013-08-08

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PCT/EP2012/051413 WO2013113353A1 (fr) 2012-01-30 2012-01-30 Système d'entraînement électrique pour un dispositif d'entraînement modulaire évolutif

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020079763A1 (en) * 2000-12-21 2002-06-27 Fleshman Roy R. Field configurable modular motor
US20040119356A1 (en) * 1998-10-21 2004-06-24 Werner Anwander Electric machine having electric coils and permanent magnets
EP1858142A1 (fr) 2006-05-16 2007-11-21 Technische Universität Kaiserlautern Moteur linéaire
DE102007005321A1 (de) * 2007-01-29 2008-07-31 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Elektromotorsystem und Baukassten hierfür

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040119356A1 (en) * 1998-10-21 2004-06-24 Werner Anwander Electric machine having electric coils and permanent magnets
US20020079763A1 (en) * 2000-12-21 2002-06-27 Fleshman Roy R. Field configurable modular motor
EP1858142A1 (fr) 2006-05-16 2007-11-21 Technische Universität Kaiserlautern Moteur linéaire
DE102007005321A1 (de) * 2007-01-29 2008-07-31 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Elektromotorsystem und Baukassten hierfür

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