As servo technology has evolved-with manufacturers making smaller, yet more powerful motors -gearheads have become increasingly essential partners in motion control. Finding the optimal pairing must take into account many engineering considerations.
• A servo electric motor operating at low rpm operates inefficiently. Eddy currents are loops of electric current that are induced within the engine during procedure. The eddy currents in fact produce a drag force within the engine and will have a greater negative impact on motor performance at lower rpms.
• An off-the-shelf motor’s parameters may not be ideally suited to run at a minimal rpm. When an application runs the aforementioned motor at 50 rpm, essentially it is not using all of its obtainable rpm. As the voltage constant (V/Krpm) of the engine is set for an increased rpm, the torque constant (Nm/amp)-which is usually directly related to it-can be lower than it requires to be. Because of this, the application requirements more current to operate a vehicle it than if the application form had a motor specifically created for 50 rpm. A gearhead’s ratio reduces the motor rpm, which is why gearheads are sometimes called gear reducers. Utilizing 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 electric 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 by just beyond 180 degrees of rotation. Most of the Servo Gearboxes use a patented exterior potentiometer to ensure that the rotation quantity is in addition to the gear ratio installed on the Servo Gearbox. In such case, the small equipment on the servo will rotate as many times as necessary to drive the potentiometer (and therefore the gearbox servo motor gearbox result shaft) into the placement that the signal from the servo controller demands.
Machine designers are increasingly turning to gearheads to take advantage of the most recent advances in servo engine technology. Essentially, a gearhead converts high-acceleration, low-torque energy into low-speed, high-torque result. A servo engine provides extremely accurate positioning of its result shaft. When both of these products are paired with each other, they enhance each other’s strengths, providing controlled motion that’s precise, robust, and dependable.
Servo Gearboxes are robust! While there are high torque servos out there that doesn’t mean they are able to compare to the load capability of a Servo Gearbox. The tiny splined result shaft of a regular servo isn’t long enough, huge enough or supported sufficiently to handle some loads despite the fact that the torque numbers seem to be appropriate for the application. A servo gearbox isolates the load to the gearbox result shaft which is backed by a pair of ABEC-5 precision ball bearings. The external shaft can withstand extreme loads in the axial and radial directions without transferring those forces to the servo. In turn, the servo operates more freely and is able to transfer more torque to the result shaft of the gearbox.