Servo gearheads provide mechanical advantage by multiplying motor torque while reducing the driven load’s reflected inertia back again to the motor.
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Have you any idea why we still use today gearboxes while servo motors becoming stronger and more complex? The gearboxes are found in many cases in mixture with a servo engine, for instance because they have low backlash and so are able to servo motor and gearbox handle high torque. But nonetheless we didn’t give an answer to the previous question: why! In this article we discuss the operation of a servo drive and translate this through to the gearboxes.
Technically translated tis methods to follow or execute a command. A servo engine follows the (complex) job given to him.
For commercial applications, servo motors are used in which a drive-system has to be accurate or highly dynamic. The feedback to the motor is performed through a resolver (analogue sensor of rotation) or encoder (digital sensor of rotation). A servo motor is managed by a servo amplifier, probably with a shaft controller.
The rotation frequency of the actuator is given back by the resolver or encoder. That is capable as well as the rotational speed, also to determine the placement of the rotor and the path of rotation. The servo amplifier compares the set rotational frequency with the measured rotational frequency. Right now the servo amplifier can drive the actuator to the desired values.
Interesting, AC Servo Motors haven’t any significant disadvantages more! Therefore, why would you utilize a gearbox?
This has the next reasons:
If you want a very low quickness, possibly in combination with a higher torque.
If you want high torque. (Actuators with high torque are available, however they are exponentially more costly when compared to smaller servomotors)
Inertia matching, to be able 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 would like to go “nearby” otherwise the servomotor shines the application. Gearboxes are available in right-angled versions.
Baldor’s GBSM-series of low backlash, servo electric motor rated gearheads, mount easily and directly onto AC brushless servo motors to supply industrial motion control apparatus with torque multiplication and proper inertial matching. These gearheads are made for servo applications needing precision, durability, and long trouble-free operation.