Self-made traditional woodworking toolbox

Assume that the pulley diameter of the motor is D 1 and the rotation speed is n1; The diameter of the pulley at the shaft end of the circular saw machine is D2, and the rotating speed is n2.

In belt drive, the speed of pulley is inversely proportional to the diameter, as follows: d1/d2 = n2/n1;

Substituting n2=2500 and n 1=2800 into the above formula, we get D 1/D2=0.893 and D 1=0.893xD2.

After selecting D2 of the pulley diameter at the shaft end of the circular saw machine, D 1 of the pulley diameter of the motor can be obtained.

If D2= 14cm, then d1=12.5cm;

D2= 13cm, then d1=11.6cm;

D2= 12cm, then d1=10.7cm;

............. and so on.

(In the above calculation, the factor of belt slip is not considered. In order to consider this factor, the diameter of motor pulley can be appropriately increased or the diameter of shaft end pulley of circular saw machine can be reduced. )