Whenever a conventional planetary gearhead is mounted to a engine, the sun gear should be aligned to compensate for runout error of the servomotor shaft. Without proper alignment, load is unevenly distributed over the planetary gears and the drive train operates less smoothly. Also, gear life could be shortened. These alignment changes require skills that aren’t normally obtainable in the field.
Achieving a more substantial speed reduction ratio takes a smaller sun gear diameter (or an exceptionally large ring gear). This smaller sun gear is usually integral using its shaft, which should be smaller aswell, thereby reducing its strength and its servo motor and gearbox torque or load capacity.
Several types of gear trains, including those with planetary gears, are commonly used to obtain this optimum reduction ratio. Planetary equipment trains offer high stiffness and low backlash (necessary for accurate procedure), plus actually load distribution (to obtain optimum torque). Some planetary versions combine external-tooth pinion-and-gear sets with planetary gear sections to simplify set up and boost velocity. These hybrid gearheads are explained later.
A basic planetary gearhead has some limitations regarding simple installation, load capacity, and speed, which are related to sunlight gear.
Generally, the designer usually obtains the the best possible speed decrease ratio by matching the inertia of the engine and gearbox with the inertia of the driven load. This inertia complementing minimizes power reduction in the motor, making it run more efficiently.
Servo motors deliver precise control of position, velocity, and acceleration in the closed-loop systems of servomechanisms. Servo motors require a servo drive – this uses the feedback data to specifically control the position of the motors direction and rotation distance.
Cone Drive’s stainless steel precision motion gearboxes are made for sterile manufacturing conditions. The product’s smooth surface and curved contour allows for easy cleaning and bacteria-free surfaces, perfect for meals digesting and pharmaceutical applications. The product is designed and rated to IP69k offering maximum protection against contaminant ingress and also leak free operation.
Servomotor selection usually starts with the designer seeking to reduce the electric motor size by using a gearbox to reduce speed and increase torque. Speed reduction allows fast acceleration and deceleration of huge loads utilizing a small, less expensive motor.