Linear or Rotary Actuator Using Electromagnetic Driven Hammer as Prime Mover

Paine, Jeffrey S N [Inventor]Smith, Byron F [Inventor]Sesler, Joshua J [Inventor]Paine, Matthew T [Inventor]McMahan, Bert K [Inventor]McMahan, Mark C [Inventor]

关键词: ACTUATORS;    ELECTROMAGNETIC HAMMERS;    FRICTION;    SOLENOIDS;    KINETIC ENERGY;    DISPLACEMENT;    PATENTS;   

RP-ID  :  US-Patent-9,941,779, US-Patent-Appl-SN-14/707,177

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

We claim a hammer driven actuator that uses the fast-motion, low-force characteristics of an electro-magnetic or similar prime mover to develop kinetic energy that can be transformed via a friction interface to produce a higher-force, lower-speed linear or rotary actuator by using a hammering process to produce a series of individual steps. Such a system can be implemented using a voice-coil, electro-mechanical solenoid or similar prime mover. Where a typical actuator provides limited range of motion or low force, the range of motion of a linear or rotary impact driven motor can be configured to provide large displacements which are not limited by the characteristic dimensions of the prime mover.