摘要:
When sub-field magnets 8a and 8b are not provided, the magnetic fluxes that pass through main field magnets 7a and 7b respectively and interlink with stator windings 5 and first rotor windings 6, and the magnetic fluxes that pass through the main field magnets 7a and 7b respectively and short-circuit adjacent main field magnets 7b' and 7a' are generated. The short-circuited magnetic fluxes do not contribute to torque generation, therefore a favorable inner periphery magnetic circuit is not formed, and the torque received between a second rotor 4 and a first rotor 3 becomes small. When sub-field magnets 8a and 8b are provided, on the other hand, the short-circuited magnet fluxes interlink with the first rotor windings 6 by the sub-field magnets 8a and 8b, and an inner periphery magnetic circuit is formed, whereby the motor driving torque received between the second rotor 4 and the first rotor 3 increases.
摘要:
An electromechanical converter, in particular an electric variable transmission, is provided with a primary shaft (5) having a rotor (8) mounted thereon, a secondary shaft (7) having an interrotor (15) mounted thereon, and a stator (10), fixedly mounted to the housing (3) of the electromechanical converter. Viewed from the primary shaft (5) in radial direction, the rotor (8), the interrotor (15) and the stator (10) are arranged concentrically relative to each other. The rotor (8) and the stator (10) are designed with one or more mono- or polyphase, electrically accessible windings. The interrotor (15) forms one whole both mechanically and electromagnetically, and is arranged as a conductor for the magnetic flux in an at least tangential direction.
摘要:
The invention relates to a motor comprising a drive unit like a rotor/stator unit of an electric motor or a hydraulic or pneumatic actuator, an output shaft coupled to the drive unit to transfer rotational movement and torque and an inner housing surrounding at least partially the drive unit, wherein the output shaft is journalled to rotate in rotation to the inner housing. According to the invention, a motor is provided having double-wall housing with an interior space between the inner and the outer housing wherein the outer housing is coupled to the inner housing such that it is free to rotate in relation thereto.
摘要:
A rotational difference is generated between a first and a second rotor (28, 78) and a third rotor (18), which causes an induced current to flow in a first rotor winding (30). This causes a torque to act between the first rotor (28) and the third rotor (18). The rotary magnetic field generated by the induced current flowing through a second rotor winding (80) interacts with a second stator (66), which in turn generates an induced electromotive force in a second stator winding (70). The induced electromotive force is applied via a phase adjustment circuit (43) to a first stator winding (20), which generates a rotary magnetic field and causes a torque to act between the first stator (16) and the third rotor (18). The rotary magnetic field generated by the second rotor winding (80) and the induced current flowing in the second stator winding (70) causes a torque to act between the second stator (66) and the second rotor (78).
摘要:
A multi-rotor A.C. electric drive device comprises a stator capable of producing a rotating or an alternating magnetic field and at least two rotors capable of producing an electromagenetic torque at asynchronous speed. The rotors are respectively called the main rotor and the auxiliary rotors. In low speed operating mode of said device, the electromagnetic torque of the auxiliary rotor is amplified through a transmission portion and drives an output element together with the main rotor; after the auxiliary rotor is accelerated to the synchronous speed, an automatic unloading device releases the auxiliary rotor from the driving engagement with the output element. Examples illustrating several types of electromagnetic portion, transmission portion and the automatic unloading device are given.
摘要:
L'invention se situe dans le domaine des actionneurs mécaniques de précision. Elle concerne un moteur pas à pas à forte précision et peut notamment être utilisée dans les mécanismes d'actionnement des satellites artificiels. Le moteur pas à pas (10) selon l'invention comprend deux rotors (12, 13) tournant en sens inverse de manière à générer un mouvement de faible amplitude entre l'un des rotors (13) et un stator (11). Plus précisément, le premier rotor (12) comprend un premier ensemble de dents (121) réparties selon un premier pas p 1 , et un deuxième ensemble de dents (122) réparties selon un deuxième pas p 2 . Le stator (11) comprend N plots statoriques (111-114) comprenant par plot une pluralité a de dents réparties selon le pas p 1 , répartis selon un troisième pas égal à p 1 (a+1/N), et pouvant coopérer avec les dents (121) du premier ensemble. Le deuxième rotor (13, 33) comprend N plots rotoriques (131-134) comprenant par plot une pluralité b de dents réparties selon le pas p 2 , répartis selon un quatrième pas égal à p 2 (b+1/N), et pouvant coopérer avec les dents (122) du deuxième ensemble du premier rotor.
摘要:
The invention relates to a motor-driven device for adjusting the position, relative to a frame (12), of a main part (10) that is movably mounted on a mounting (13) supported by the frame (12), said device including: a movable compensation part (15); a compensated motor-driven actuation device (18) positioned between the main part (10) and the compensation part (15) and suitable for moving the compensation part (15) and the main part (10) relative to each other; and a unit for controlling the compensated actuation device, the assembly being suitable for minimizing the resultant of reaction forces induced, relative to the mounting (13), by the movements of the main part (10) and the compensation part (15).
摘要:
The invention relates to a method of operating an electromechanical converter, in particular an electric variable transmission, provided with a primary shaft having a rotor mounted thereon, a secondary shaft having an interrotor mounted thereon, and a stator, fixedly mounted to the housing of the electromechanical converter, wherein, viewed from the primary shaft in radial direction, the rotor, the interrotor and the stator are arranged concentrically relative to each other. The rotor and the stator are designed with one or more windings. Further, the interrotor forms one whole both mechanically and electromagnetically, and is arranged as a conductor for magnetic flux in an at least tangential direction. The method comprises the step of variably controlling a magnetic rotor flux.