As an example, look at a person riding a bicycle, with the person acting like the engine. If that person tries to ride that bike up a steep hill in a gear that’s created for low rpm, she or he will struggle as
they try to maintain their stability and achieve an rpm that may permit them to climb the hill. However, if indeed they change the bike’s gears right into a quickness that will produce a higher rpm, the rider will have
a much easier period of it. A continuous force could be applied with smooth rotation being offered. The same logic applies for industrial applications that require lower speeds while maintaining necessary
• Inertia matching. Today’s servo motors are producing more torque in accordance with frame size. That’s due to dense copper windings, lightweight materials, and high-energy magnets.
This creates greater inertial mismatches between servo motors and the loads they want to move. Using a gearhead to better match the inertia of the electric motor to the inertia of the load allows for utilizing a smaller engine and outcomes in a more responsive system that’s simpler to tune. Again, that is attained through the gearhead’s ratio, where in fact the reflected inertia of the load to the electric motor is decreased by 1/ratio2.
Recall that inertia may be the measure of an object’s level of resistance to change in its movement and its own function of the object’s mass and shape. The higher an object’s inertia, the more torque is required to accelerate or decelerate the object. This implies that when the strain inertia is much larger than the motor inertia, sometimes it could cause excessive overshoot or boost settling times. Both circumstances can decrease production line throughput.
However, when the electric motor inertia is bigger than the load inertia, the motor will need more power than is servo gearbox otherwise necessary for the particular application. This improves costs since it requires having to pay more for a engine that’s larger than necessary, and since the increased power consumption requires higher operating costs. The solution is to use a gearhead to match the inertia of the engine to the inertia of the load.