Study of Gear Ratio Influence of Reducer on Characteristics of Discrete Electric Drive

摘要

When developing digital motion replication systems based on a positional discrete electric drive, the problem of choosing a stepper motor in relation to a given load on its shaft in order to achieve high speed arises. The characteristic feature of the motion trajectories in systems with positional control is the accelerated movement during acceleration at a given time interval. In this connection, when designing the drive, the actual problem of calculating the optimal gear ratio of the kinematic converter of the form of motion in interrelation with the main drive parameters that are included in its mathematical description arises. The purpose of this study is to determine the optimum gear ratio of the reducer when the drive operates in the mode with the maximum acceleration in the frequency range up to the pickup frequency based on the methodological concept of the representation of the main drive parameters which are the part of its mathematical description in relative units. In connection with the set task, the recommendations for determining the optimum value of the gear ratios of the reducer are given. The results of the experimental study on the drive model allow us to predict the steady behavior of the stepping motor with accelerated movement of the drive shaft and in the recommended range of the gear ratios of the reducer, and the generalized scientific approach allows them to be applied to a single discrete drive of any power when designing motion replication positional systems for this type of motion.