How to choose a harmonic reducer with a motor, and what factors need to be paid attention to

Due to the principle of harmonic drive, the meshing of teeth and teeth is in surface contact, and the number of meshing teeth is large at the same time, so the unit area load is small and the carrying capacity is high, so it is widely used in industrial robots, service robots, aerospace, Engineering equipment, medical equipment, machine tool equipment and other fields. How to choose and match the motor in use can better adjust the performance of the harmonic reducer to the best effect.

1. The purpose of using the harmonic reducer is to increase the torque. The calculation of the torque is very important for the service life, and it is necessary to pay attention to the torque value during acceleration, that is, whether the peak torque of the motor exceeds its load torque.

2. Select the number of stages of the motor when the peak torque of the motor is known. The harmonic reducer is composed of three basic components: a wave generator, a flexible wheel and a rigid wheel. It is a gear transmission in which the wave generator uses the flexible wheel to generate controllable elastic deformation, and meshes with the rigid wheel to transmit motion and power. The speed ratio needs to be considered when choosing a matching motor.
3. When the speed ratio is determined, the service factor and safety factor of the motor need to be considered. The reference value of the service factor in each industry field is different, and it needs to be calculated according to their own industry field. Some harmonic manufacturers choose to match the motor. Calculated using shaft power.
When the harmonic reducer is selected to match the motor, it is enough to query the motor that is more suitable for matching through a series of parameters such as torque, speed ratio, motor series, shaft power and service coefficient.

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