The deceleration ratio, namely the transmission ratio of the deceleration device, is a kind of transmission ratio, which refers to the ratio of the instantaneous input speed to the output speed in the deceleration mechanism, indicated by the symbol "i".
The general representation method of deceleration ratio is 1 as the denominator, and the ratio of input speed and output speed connected with ":". If the input speed is 1500 r/min and the output speed is 25 r/min, then the deceleration ratio is: i=60:1. The general deceleration mechanism deceleration ratio is the actual deceleration ratio, but some special reducer such as cycloid reducer or harmonic reducer sometimes rounded by rounding method, and do not have the denominator, if the actual deceleration ratio may be 28.13, and the annotation is generally marked 28.
1, define the calculation method: deceleration ratio = input speed output speed, the ratio of the connected input speed and output speed, if the input speed is 1500 r/min, the output speed is 25 r/min, then the deceleration ratio is: i=60:1
2, gear system calculation method: deceleration ratio = number of driven gear teeth number of active gear teeth (if it is a multistage gear deceleration, then the number of driven gear teeth of all the engaged pairs of gear sets, and then the results can be multiplied.
3, belt, chain and friction wheel deceleration ratio calculation method: deceleration ratio = driven wheel diameter active wheel diameter.
Main functions:
1. Reduce down and increase the output torque, and the torque output ratio according to the motor output deceleration ratio, but it should be noted not to exceed the rated torque of the reducer.
2, deceleration also reduces the inertia of the load, which is reduced to the square of the transmission ratio. You can look at the general motor has a inertia value.
