As servo technology has evolved-with manufacturers generating smaller, yet more powerful motors -gearheads have become increasingly essential companions in motion control. Finding the ideal pairing must take into account many engineering considerations.
• A servo electric motor working at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the electric motor during operation. The eddy currents actually produce a drag force within the engine and will have a larger negative effect on motor efficiency at lower rpms.
• An off-the-shelf motor’s parameters might not be ideally servo motor gearbox suited to run at a low rpm. When an application runs the aforementioned electric motor at 50 rpm, essentially it is not using all of its obtainable rpm. As the voltage continuous (V/Krpm) of the engine is set for an increased rpm, the torque constant (Nm/amp)-which is directly linked to it-can be lower than it needs to be. Because of this, the application requirements more current to operate a vehicle it than if the application form had a motor particularly created for 50 rpm. A gearhead’s ratio reduces the engine rpm, which is why gearheads are sometimes called gear reducers. Utilizing 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 bigger rpm will allow you to avoid the concerns
Servo Gearboxes provide freedom for how much rotation is achieved from a servo. Many hobby servos are limited to just beyond 180 levels of rotation. Most of the Servo Gearboxes utilize a patented external potentiometer to ensure that the rotation amount is independent of the equipment ratio set up on the Servo Gearbox. In such case, the small gear on the servo will rotate as many times as essential to drive the potentiometer (and hence the gearbox result shaft) into the placement that the signal from the servo controller calls for.
Machine designers are increasingly turning to gearheads to take advantage of the latest advances in servo electric motor technology. Essentially, a gearhead converts high-velocity, low-torque energy into low-speed, high-torque output. A servo motor provides extremely accurate positioning of its result shaft. When these two products are paired with each other, they promote each other’s strengths, offering controlled motion that’s precise, robust, and reliable.
Servo Gearboxes are robust! While there are high torque servos available that doesn’t indicate they can compare to the strain capacity of a Servo Gearbox. The small splined output shaft of a normal servo isn’t lengthy enough, large enough or supported well enough to handle some loads despite the fact that the torque numbers look like suitable for the application form. A servo gearbox isolates the strain to the gearbox output shaft which is backed by a set of ABEC-5 precision ball bearings. The external shaft can withstand intense loads in the axial and radial directions without transferring those forces to the servo. Subsequently, the servo operates more freely and can transfer more torque to the result shaft of the gearbox.