eccentric
In mechanics and mechanical engineering, an eccentric (from Latin ex centro , `` from the center ''; meaning `` moved out of the center '') is a control disc attached to a shaft , the center of which is outside the shaft axis.
With an eccentric, for example, rotary (rotary ) movements can be converted into translatory (length) movements and vice versa. The smaller the eccentricity - for example in machine tools - the more force can be developed by the drive shaft ( lever law ), the smaller the stroke will be .
The purpose of the eccentric can therefore be more to convert rotary to longitudinal movement, or rather to increase force, whereby both effects are generally desired.
The power amplification is mainly used in the eccentric press for punching and pressing sheet metal or plastics . Examples for the conversion of direction are " eccentric sander ", planing machine , jigsaw and connecting fittings for do -it-yourself furniture .
literature
- Heinrich Dubbel (Ed.): Pocket book for mechanical engineering . Julius Springer, Berlin 1914.
- Oscar Thiering: The gears of textile technology . Springer-Verlag, Berlin / Heidelberg 1926.
- H. Mauri: The fixture construction . Part I, eighth edition, Springer-Verlag, Berlin / Heidelberg 1965.
