Principle:
The transmission of torque and motion in harmonic gear drive mainly depends on the continuous elastic deformation of flexspline. The principle of harmonic gear transmission is that through the action of wave generator, the moving deformation wave is generated in the flexible gear assembly and meshed with the rigid gear teeth, so as to achieve the purpose of transmission.
Advantages:
1, the backlash of harmonic gear transmission is small and adjustable, and even zero backlash transmission can be realized.
2. When a structural type such as an electromagnetic wave generator or a disk wave generator is adopted, a smaller moment of inertia can be obtained.
Extended data
Application direction:
1. Harmonic gears are widely used in aviation, aerospace, energy, bionic machinery, weapons, electronic equipment, mining metallurgy, transportation, lifting machinery, petrochemical machinery, textile machinery, agricultural machinery and medical equipment.
2. In the servo system with high dynamic performance, harmonic gear transmission shows its superiority. It transmits power from tens of watts to tens of kilowatts, but high-power harmonic gear transmission is mostly used in short-term working occasions.
Baidu encyclopedia-harmonic gear transmission