| 摘要 |
<p>The invention relates to electrotechnical switching equipment, in particular to methods and devices for high speed displacement of contacts in the contact unit of a commutation switch. The inventive method consists in modifying the position of the working part of a plate spring by simultaneously applying a force to the opposite parts thereof in the areas which are symmetrically disposed with respect to said working part. The applied force is exerted with a linear and reciprocal motion. The inventive device for high speed displacing the contacts in the contact unit of the commutation switch comprises a body provided with actuating and overrunning mechanisms, a contact unit provided with fixed and movable contacts, at least one plate spring provided with fixing elements whose working part is interconnected to the movable contacts of the contact unit of the commutation switch through a dielectric yoke. Said device also comprises a pair of pushers which are connected to the actuating mechanism by means of the overrunning mechanism and at least two interconnected pares of pushers which are disposed on the opposite parts with respect to the working part of the spring. Said plate spring can be embodied in the form of a set of plate springs, each of them being provided with one common pusher arranged on the opposite ends thereof. The fixing elements are arranged in the body in such a away that they are tiltable with respect to the fixing axis thereof. In order to ensure synchronous operation of the pair of pushers a mechanical connection is introduced therebetween.</p> |
