Wheel set shaft for an electric drive unit mounted on the axle and drive unit
A wheel-to-axle and motor technology, applied in the field of wheel-to-axle, can solve the problems of increasing manufacturing cost, high cost, etc., and achieve the effect of reducing types
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[0022] same parts in Figure 1 to Figure 3 are indicated by the same reference symbols.
[0023] figure 1 Shown is an exemplary embodiment of a gearless drive unit 1 with an electric motor 2 and a wheel shaft 4 driven to rotate about a rotational axis 3 . In this embodiment, the motor 2 is a permanent magnet synchronous motor, the rotor 5 of which is directly mounted on the wheel set shaft 4 . That is to say, the drive unit 1 is a gearless shaft-mounted non-flexible wheel set direct drive. This type of drive is mainly used in figure 1 on rail vehicles not shown in detail.
[0024] The motor 2 basically adopts a common structure. In addition to the rotor 5, the electric motor 2 also includes a stator 6 with a winding system, figure 1 Only the two axial end windings 7 of this winding system are shown schematically. The rotor 5 includes a stack of laminations 8 which has a plurality of punched laminations 9 stacked one after the other along the axial direction. A pluralit...
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