Planetary reduction step motor is a conveying mechanism, its structure by a combined closely with the inner gear ring on the gear box shell, ring gear center has a sun gear of external power driven somewhere in between a group of bisected by three gear combination on the tray of the planetary gear set, this group of planetary gear on the output shaft, and the sun on the annular gear tooth support during the planktonic in; When the lateral force driving the sun gear, drive to planetary gear rotates, and follows the path along the center orbit on the annular gear, the planets of the rotating drive the output shaft power output of the links in the tray. when the drive motor and reducer assembly concentricity between guarantee better when the drive motor output shaft turn on only the power (Torque), when running, also will be very smooth, no pulsation. And in different heart, drive motor output shaft and radial force at the input to inherit from the reducer (Bending moment)。 the function of the radial force will make the drive motor output shaft was forced to bend, and bend with the output shaft rotational direction changing. If concentricity error is large, the radial force make the stepper motor output shaft local temperature, the metal structure has been destroyed, will eventually lead to the drive motor output shaft broken by local fatigue. Both concentricity error is bigger, the shorter the time broken drive motor output shaft. in the drive motor output shaft broken at the same time, the speed reducer input will also suffer from the drive motor output shaft radial force, if the radial force is beyond reducer input can withstand maximum radial load, the result will also result in reducer input causes deformation or even rupture or input support bearing damage. so, when the assembly is very important to ensure the concentricity. Analysis from the assembly process, if the drive motor shaft and concentric reducer input end, then drive motor shaft between the surface and the surface of the reducer input hole will match, their contact tightly stick, no radial force and deformation of space. While assembly if different heart, will not be identical or space between the contact surface, providing a space is the radial force and deformation. in the same way, the output shaft of the reducer are broken or bending phenomenon occurs, the reason and drive motor broken shaft causes the same. But the output of the speed reducer is the product of drive motor output and reduction ratio, relative to the motor output more, so the speed reducer output shaft are more likely to be broken. As a result, users in the use of deceleration machine, the output terminal assembly concentricity guarantee should be very attention! planetary gear reduction step motor light weight, small volume, large range of transmission ratio, high efficiency, stable operation, low noise, strong adaptability, etc. Reducer is widely used in metallurgy, mining, lifting transport, electricity, energy, light industry, building materials, transportation and other industrial sectors. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
