Linear Motion Electric Machines

Based on topological considerations a classification of these.

Linear motion electric machines.

In a traditional electric motor the rotor rotating part spins inside the stator static part. Where a conventional rotary motor is used to drive a load in a linear motion some kind of mechanism is required to transform the rotary motion of the motor shaft to the desired straight line motion. Although various types of dc and ac linear machines are briefly mentioned linear induction motors are the main concern of the paper and they are discussed in considerable detail. A rotary and linear motion device includes a magnetic stator assembly opposed electromagnetic actuators and a linear to rotary converter e g cam.

The history of linear electric motors can be traced back at least as far as the 1840s to the work of charles wheatstone at king s college london but wheatstone s model was too inefficient to be practical. Each electromagnetic actuator includes a coil that is configured to reciprocate relative to the magnetic stator assembly or to linearly translate in a common direction relative to the magnetic stator assembly. A feasible linear induction motor is described in the u s. Linear motion electric actuator for control valve overview.

The almost consolidated trend is to switch from hydraulic or pneumatic cylinders to electric linear actuators with particular reference to some industrial fields as packaging and automatic machines. A survey of linear motion electrical machines is presented. Linear motors directly produce the back and forth linear motion required by machine tools and many other applications. In a linear motor the stator is unwrapped and laid out flat and the rotor moves past it in a straight line.

Welcome the linear motor. The main purpose is to have a better control and a greater versatility in automations as well as a deep customization of the machine or the. Linea r electric motor s can dr ive a linear motion. Linear motion electrical machines abstract.

As for any other l inear motion elect rica l machine t he usefu l force thrust. Patent 782 312 1905 inventor alfred zehden of frankfurt am main for driving trains or lifts.