Smoothness and lack of ripple are crucial for the printing of elaborate color images on reusable plastic material cups available at fast-food chains. The color image is made up of millions of tiny ink spots of many colours and shades. The complete glass is printed in one pass (unlike regular color separation where each color is published separately). The gearheads must function efficiently enough to synchronize ink blankets, printing plates, and glass rollers without presenting any ripple or inaccuracies that may smudge the picture. In cases like this, the hybrid gearhead reduces motor shaft runout error, which reduces roughness.
Sometimes a motor’s capability may be limited to the point where it needs gearing. As servo manufacturers develop more powerful motors that can muscle tissue applications through more complicated moves and create higher torques and speeds, these motors require gearheads equal to the task.
Interestingly, no more than a third of the movement control systems operating use gearing at all. There are, of training course, reasons to do so. Using a gearhead with a servo motor or using an integrated gearmotor can enable the use of a smaller motor, thereby reducing the machine size and price. There are three primary advantages of going with gears, each of which can enable the use of smaller sized motors and drives and therefore lower total system cost:
Torque multiplication. The gears and quantity of tooth on each gear make a ratio. If a engine can generate 100 in-lbs of torque, and a 5:1 ratio gear head is attached to its output, the resulting torque will become near to 500 in-lbs.
When a motor is running at 1,000 rpm and a 5:1 ratio gearhead is mounted on it, the quickness at the output will be 200 rpm. This speed decrease can improve system overall performance because many motors do not operate efficiently at very low rpm. For example, look at a stone-grinding mechanism that requires the motor to perform at 15 rpm. This slow acceleration makes turning the grinding wheel difficult because the motor tends to cog. The variable level of resistance of the stone being ground also hinders its simple turning. With the addition of a 100:1 gearhead and letting the motor run at 1,500 rpm, the engine and gear mind provides smooth rotation as the gearhead output provides a more constant power using its output rotating at 15 rpm.
Inertia matching. Servo motors generate more torque relative to frame size because of lightweight materials, dense copper windings, and high-energy magnets. The effect is greater inertial mismatches between servo motors and the loads they want to control. The use of a gearhead to better match the inertia of the motor to the inertia of the strain can enable the use of a smaller electric motor and results in a far more responsive system that’s easier to tune.
Do your study … you’ll find people are completely pleased with servo motor gearbox.