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Case of deceleration Coupling Case
Case of reducer
Zhongxin Weichuang| 2022-09-24|Return list
The principle of planetary reducer is a power transmission mechanism, which uses the speed converter of gears to reduce the rotation number of the motor to the desired rotation number and obtain a mechanism with large torque. The gears with fewer teeth on the transmission shaft of the planetary reducer mesh with the big gears on the output shaft to reduce speed. Ordinary reducers also have several pairs of gears with the same principle engaged to achieve the ideal reduction effect. The ratio of the number of teeth of big and small gears is the transmission ratio.
Series: number of sets of planetary gears. As one set of planetary gears cannot meet the requirements of large transmission ratio, sometimes two or three sets are required to meet the user's requirements of large transmission ratio As the number of planetary gears is increased, the length of the two-stage or three-stage reducer will increase and the efficiency will decrease. Return clearance: when the output end is fixed and the input end rotates clockwise and counterclockwise to make the input end produce - 2% of the rated torque, there is a small angular displacement at the input end of the reducer. This angular displacement is the return clearance. The unit is "minute", which is one sixtieth of one degree Some people call it back space. With the continuous development of the gear reducer industry, more and more enterprises have applied the gear reducer. The planetary gear reducer is an industrial product, and the planetary gear reducer is a transmission mechanism. Its structure is closely connected to the gearbox housing by an internal gear ring. There is a sun gear driven by external dynamic force in the center of the gear ring. Between the two, there is a group of planetary gear sets which are composed of three gears equally on the tray, This group of planetary gears is supported by the output shaft, internal gear ring and sun gear during the floating period; When the power at the input side drives the sun gear, it can drive the planetary gear to rotate, and follow the path of the inner gear ring to revolve along the center. The rotation of the planet drives the output shaft connected to the tray to output power. The speed converter of the gear is used to reduce the rotation number of the motor (motor) to the desired rotation number, and a mechanism with large torque is obtained. Among the gear reducer mechanisms used to transmit power and motion, the planetary gear reducer is a precision type gear reducer, and the reduction ratio can be accurate to 0.1 rpm - 0.5 rpm.