As servo technology has evolved-with manufacturers producing smaller, yet better motors -gearheads are becoming increasingly essential companions in motion control. Finding the ideal pairing must consider many engineering considerations.
• A servo electric motor working at low rpm operates inefficiently. Eddy currents are loops of electrical current that are induced within the motor during operation. The eddy currents actually produce a drag pressure within the motor and will have a larger negative impact on motor efficiency at lower rpms.
• An off-the-shelf motor’s parameters may not be ideally suitable for run at a low rpm. When an application runs the aforementioned motor at 50 rpm, essentially it is not using most of its available rpm. As the voltage constant (V/Krpm) of the engine is set for a higher rpm, the torque continuous (Nm/amp)-which is usually directly related to it-is definitely lower than it requires to be. As a result, the application needs more current to drive it than if the application form had a motor specifically made for 50 rpm. A gearhead’s ratio reduces the motor rpm, which is why gearheads are occasionally called gear reducers. Using a gearhead with a 40:1 ratio,
the electric motor rpm at the input of the gearhead will be 2,000 rpm and the rpm at the output of the gearhead will be 50 rpm. Operating the motor at the bigger rpm will enable you to avoid the concerns
Servo Gearboxes provide freedom for just how much rotation is achieved from a servo. Many hobby servos are limited by just beyond 180 degrees of rotation. Most of the Servo Gearboxes use a patented exterior potentiometer to ensure that the rotation quantity is independent of the equipment ratio installed on the Servo Gearbox. In such case, the small equipment on the servo will rotate as much times as essential to drive the potentiometer (and hence the gearbox output shaft) into the position that the signal from the servo controller calls for.
Machine designers are increasingly turning to gearheads to take benefit of the latest advances in servo electric motor technology. Essentially, a gearhead converts high-quickness, low-torque energy into low-speed, high-torque result. A servo motor provides highly accurate positioning of its output shaft. When these two gadgets are paired with each other, they promote each other’s strengths, offering controlled motion that is precise, robust, and reliable.
Servo Gearboxes are robust! While there are high torque servos available that doesn’t imply they can compare to the load capability of a Servo Gearbox. The tiny splined output shaft of a regular servo isn’t lengthy enough, large enough or supported well enough to take care of some loads even though the torque numbers seem to be appropriate for the application. A servo gearbox isolates the load to the gearbox output shaft which is backed by a set of ABEC-5 precision ball bearings. The exterior shaft can withstand intense loads in the axial and radial directions without transferring those forces to the servo. Subsequently, the servo runs more freely and is able to transfer more torque to the output shaft of the gearbox.