As servo technology has evolved-with manufacturers producing smaller, yet more powerful motors -gearheads are becoming increasingly essential companions in motion control. Finding the ideal pairing must consider many engineering considerations.
• A servo engine working at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the motor during operation. The eddy currents actually produce a drag power within the motor and will have a larger negative effect on motor efficiency at lower rpms.
• An off-the-shelf motor’s parameters may not be ideally suited to run at a minimal rpm. When a credit card applicatoin runs the aforementioned engine at 50 rpm, essentially it is not using all of its available rpm. Because the voltage constant (V/Krpm) of the electric motor is set for a higher rpm, the torque constant (Nm/amp)-which is definitely directly related to it-is lower than it needs 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 engine rpm, which is why gearheads are sometimes called gear reducers. Using a gearhead with a 40:1 ratio,
the 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 higher rpm will enable you to avoid the concerns
Servo Gearboxes provide freedom for just how much rotation is achieved from a servo. The majority of hobby servos are limited by just beyond 180 degrees of rotation. Many of the Servo Gearboxes utilize a patented external potentiometer so that the rotation amount is independent of the equipment ratio installed on the Servo Gearbox. In this kind of 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 placement that the transmission from the servo controller demands.
Machine designers are increasingly turning to gearheads to take advantage of the most recent advances in servo electric motor technology. Essentially, a gearhead converts high-rate, low-torque energy into low-speed, high-torque result. A servo electric motor provides highly accurate positioning of its result shaft. When both of these products are paired with one another, they enhance each other’s strengths, offering controlled motion that is precise, robust, and reliable.
Servo Gearboxes are robust! While there are high torque servos on the market that doesn’t suggest they can compare to the load capacity of a Servo Gearbox. The small splined output shaft of a normal servo isn’t long enough, huge enough or supported sufficiently to take care of some loads even though the torque numbers appear to be appropriate for the application form. A servo gearbox isolates the strain to the gearbox result shaft which is supported by a pair of ABEC-5 precision ball bearings. The exterior shaft can withstand severe loads in the axial and radial directions without transferring those forces on to the servo. Subsequently, the servo runs more freely and can transfer more torque to the result shaft of the gearbox.