When a conventional planetary gearhead is mounted to a electric motor, the sun gear must be aligned to pay 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 can be shortened. These alignment adjustments require skills that are not normally obtainable in the field.
Achieving a larger speed reduction ratio requires a smaller sun gear diameter (or an exceedingly large ring equipment). This smaller sun gear is usually integral with its shaft, which should be smaller as well, thereby reducing its power and its torque or load capacity.
Various kinds gear trains, including those with planetary gears, are generally used to obtain this optimum reduction ratio. Planetary equipment trains offer high stiffness and low backlash (necessary for accurate operation), plus actually load distribution (to acquire maximum torque). Some planetary variations combine external-tooth pinion-and-gear models with planetary equipment sections to simplify set up and boost velocity. These hybrid gearheads are defined later.
A basic planetary gearhead has some limitations regarding simple installation, load capacity, and speed, all of which are related to sunlight gear.
As a rule, the designer usually obtains the optimum speed reduction ratio by matching the inertia of the engine and gearbox with the inertia of the driven load. This inertia matching minimizes power reduction in the motor, which makes it run more efficiently.
Servo motors deliver precise control of placement, velocity, and acceleration in the closed-loop systems of servomechanisms. Servo motors require a servo drive – this uses the feedback data to precisely control the position of the motors path and rotation distance.
Cone Drive’s stainless steel precision motion gearboxes are made for sterile manufacturing environments. The product’s smooth surface area and curved contour permits easy cleaning and bacteria-free surfaces, ideal for meals processing and pharmaceutical applications. The product is designed and ranked to IP69k offering maximum security 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 lessen speed and enhance torque. Speed reduction allows speedy acceleration and deceleration of large loads using a small, less costly motor.
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