When choosing pulleys for the engine, when building a drill splitter, we should be guided by the formulas below to calculate the ratio of pulleys and the choice of pulley diameter.
i = v1 / v2
where: i - gear ratio v1 - electric motor speed v2 - target speed we want to achieve (on the drill splitter)
EXAMPLE:
For the 1400 rpm engine and the target speed we want to achieve for our drill splitter, i.e. 550 rpm, the ratio will be calculated as follows:
i = 1400/550 = 2.55
If we have already calculated the ratio we can adjust the pulleys.
If we know the diameter of a small pulley, we will calculate the large pulley as follows:
d2 = d1 * i
If we know the diameter of a large pulley, we calculate the small ones by transforming the previous formula, namely:
d1 = d2 / i
where: d1 - small pulley (for engine) d2 - large pulley (for drill) i - gear ratio
For example, suppose we have a small pulley with a diameter of 80mm on the engine, we calculate the large pulley as follows:
d2 = 80mm * 2.55 = 204mm
And vice versa, when we have a large pulley with a diameter of 204mm, we will calculate the small pulley using the second transformed formula:
d1 = 204mm / 2.55 = 80mm
If in doubt, please contact us, we will provide all necessary assistance in choosing the right pulleys for the construction of a wood splitter .
