Calculation of gearmotor reduction ratio

1, define the calculation method: reduction ratio = input speed ÷ output speed.
2. General Calculation method: Use a torque reduction ratio = ÷ 9550 ÷ × motor power motor power input revolutions ÷ utilization factor.
3. Calculation gear train: reduction ratio = ÷ driven gear driving gear teeth (if it is a multi-stage gear, the number of teeth will be driven initiative ÷ number of teeth all meshed pair of gears set, and then the results obtained by multiplying.
Representation is a general reduction ratio denominator, with ":" The ratio of input speed and output speed connections, such as the input speed is 1500r / min, the output speed is 25r / min, then the reduction ratio was: i = 60: 1. General reduction ratio marked reduction mechanism is the actual reduction ratio, but some special gear such as cycloid reducer or mechanical variable speed gearbox sometimes rounded by rounding, and do denominator, such as the actual reduction ratio may be 28.13, And when labeling generally designated 28.