Servo gearheads provide mechanical benefit by multiplying electric motor torque while reducing the driven load’s reflected inertia back again to the motor.
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Do you know why we still use today gearboxes while servo motors becoming stronger and more advanced? The gearboxes are found in many servo motor and gearbox situations in combination with a servo motor, for example because they possess low backlash and so are able to handle high torque. But still we did not give an answer to the previous question: why! In this post we discuss the procedure of a servo drive and translate this to the gearboxes.
Technically translated tis means to follow or execute a command. A servo motor follows the (complex) task given to him.
For commercial applications, servo motors are used where a drive-system has to be accurate or highly dynamic. The opinions to the engine is done through a resolver (analogue sensor of rotation) or encoder (digital sensor of rotation). A servo engine is managed by a servo amplifier, possibly with a shaft controller.
The rotation frequency of the actuator is returned by the resolver or encoder. That is capable in addition to the rotational quickness, also to look for the position of the rotor and the direction of rotation. The servo amplifier compares the established rotational frequency with the measured rotational frequency. Now the servo amplifier can drive the actuator to the required values.
Interesting, AC Servo Motors haven’t any significant disadvantages more! So, why would you use a gearbox?
This has the following reasons:
If you want a very low speed, possibly in combination with an increased torque.
If you need high torque. (Actuators with high torque can be found, but they are exponentially more expensive compared to the smaller servomotors)
Inertia matching, in order to prevent that the strain determines the behaviour of the motor.
To be able to absorb the high radial or axial forces of the application form.
If you want to go “around the corner” otherwise the servomotor shines the application. Gearboxes are available in right-angled versions.
Baldor’s GBSM-series of low backlash, servo motor rated gearheads, attach easily and directly onto AC brushless servo motors to supply industrial motion control products with torque multiplication and proper inertial matching. These gearheads are created for servo applications requiring precision, durability, and lengthy trouble-free operation.