1. Simple harmonic vibration principle: Simple harmonic vibration refers to the phenomenon that when an external force acts on an object, it causes the object to resume vibration at a certain frequency. Simple harmonic vibration has high periodicity and stability, and is widely used in various precision transmission devices.
2. Function of the internal gear: The tooth profile of the internal gear of the harmonic reducer is trapezoidal with three or more teeth. When the input shaft transmits power through the internal gear, the internal gear will produce periodic vibration and form simple harmonic vibration.
3. Function of flexspline: Flexspline is the core component of harmonic reducer, and its tooth profile is wavy. When the internal gear produces simple harmonic vibration, the flexible gear will be elastically deformed under the action of the internal gear, thus producing simple harmonic vibration.
4. Function of the output gear: The output gear is the output component of the harmonic reducer, which meshes with the flexspline and transmits harmonic vibration through the deformation of the flexspline, thus realizing the reduction drive.
To sum up, the harmonic reducer uses the combination of internal gear, flexible gear and output gear, and realizes deceleration transmission through the principle of harmonic vibration. Compared with other reducers, harmonic reducers have the advantages of high precision, high efficiency, strong bearing capacity, small size and long life, so they are widely used in machine tools, robots, medical devices, automated production equipment and other fields.