Defnyddio systemau pwli a belt i newid cyfeiriad
Using a pulley to change direction
Newid y cyfeiriad a’r ongl gyda gyrrwr belt. Mae’n bosib gwrthdroi cyfeiriad mudiant gyda gyrrwr belt trwy droelli’r belt fel y dangosir. Defnyddir y dull troelli hwn hefyd i newid ongl y mudiant fel y gall un siafft yrru siafft arall i’r cyfeiriad dirgroes pan fydd yn troi.
Changing the direction and angle with a belt drive. It is possible to reverse the direction of motion with a belt drive by twisting the belt around as shown. This twisting method is also used to change the angle of motion so that a revolving shaft can drive another in the opposite direction.