Whenever a conventional planetary gearhead is mounted to a electric motor, the sun gear should be aligned to compensate for runout error of the servomotor shaft. Without proper alignment, load is certainly unevenly distributed over the planetary gears and the drive train operates less smoothly. Also, gear life could be shortened. These alignment modifications require skills that aren’t normally available in the field.
Achieving a more substantial speed servo motor and gearbox reduction ratio requires a smaller sun equipment diameter (or an exceedingly large ring equipment). This smaller sun equipment is usually integral using its shaft, which must be smaller aswell, thereby reducing its strength and its torque or load capacity.
Several types of gear trains, including people that have planetary gears, are commonly used to acquire this ideal reduction ratio. Planetary equipment trains offer high stiffness and low backlash (needed for accurate operation), plus actually load distribution (to obtain optimum torque). Some planetary variations combine external-tooth pinion-and-gear sets with planetary gear sections to simplify installation and boost acceleration. These hybrid gearheads are described later.
A simple planetary gearhead has a few limitations regarding simple installation, load capacity, and speed, all of which are related to the sun gear.
As a rule, the designer usually obtains the ideal speed reduction ratio by matching the inertia of the motor and gearbox with the inertia of the driven load. This inertia matching minimizes power loss in the motor, which makes it run more efficiently.
Servo motors deliver precise control of position, velocity, and acceleration in the closed-loop systems of servomechanisms. Servo motors need a servo drive – this uses the feedback data to exactly control the position of the motors path and rotation distance.
Cone Drive’s stainless precision movement gearboxes are created for sterile manufacturing environments. The product’s smooth surface and curved contour allows for easy cleaning and bacteria-free surfaces, ideal for meals digesting and pharmaceutical applications. The product is designed and ranked to IP69k offering maximum security against contaminant ingress as well as leak free operation.
Servomotor selection usually starts with the designer wanting to reduce the engine size by using a gearbox to lessen speed and increase torque. Speed reduction allows speedy acceleration and deceleration of large loads utilizing a small, less costly motor.