To improve motor performance and lower manufacturing costs, rotor-embedded flat NdFeB magnets replace surface-mounted curved magnets. The design effectively doubles the magnet's power volume providing flux for higher torque to inertia, and reduced size and weight.
Stainless-steel center shaft, non-magnetic-retainer rings and glass-fiber rods prestress the rotor assembly. The prestressed rotor cage delivers torque allowing center-shaft elimination in small-diameter motors. High mechanical stiffness allows increased current-loop gains.
The design secures magnets even at high speeds, eliminating the need for special rotor banding. Schlenker Enterprises has designed the synchronous ac servo motor in four diameters rated from 1 Nm to 147 Nm.
Schlenker Enterprises Ltd., 5143 Electric Ave., Hillside, IL 60162-1099, Fax: (708) 449-5703.
At the Design News webinar on June 27, learn all about aluminum extrusion: designing the right shape so it costs the least, is simplest to manufacture, and best fits the application's structural requirements.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.