Harmonic gear drives are high-precision, high-rigidity, high-torque enclosed transmission devices and are indispensable equipment in modern industrial production. Their role is to transfer a certain load torque to the output shaft after deceleration and adjust the rotation speed, while achieving precise motion control in this process. They are widely used in industrial machinery, precision instruments, automation equipment, and other fields.
Reduction Ratio
The reduction ratio refers to the ratio between the output shaft speed and the input shaft speed of the harmonic gear drive, usually represented by i. The larger the reduction ratio, the greater the output torque but the slower the output speed. The reduction ratio of harmonic reducers is usually between 30-100, with some special models reaching up to a reduction ratio of 1:160.
Rated Output Torque
Rated output torque refers to the maximum torque value that the harmonic reducer can operate for extended periods. Different models of harmonic gear drives have different rated output torques, generally ranging from 0.1N·m to 10,000N·m. The suitable model of harmonic reducer should be chosen based on actual usage requirements.
Rated Input Speed
Rated input speed refers to the maximum input speed value that the harmonic reducer can operate at for extended periods. Exceeding the rated input speed will cause damage to the harmonic reducer. Different models of harmonic reducers have different rated input speeds, generally ranging from 3000 RPM to 10000 RPM.
Transmission Accuracy
The transmission accuracy of the harmonic gear drive refers to the difference between the actual output angle and the theoretical output angle for each rotation of the output shaft. The higher the transmission accuracy, the smaller the angle error of the output, usually expressed in arc seconds (") or arc minutes ('). The transmission accuracy of harmonic reducers is generally 1", 3", 5", etc.
Repeatable Positioning Accuracy
Repeatable positioning accuracy refers to whether the positioning accuracy of the output shaft is consistent after multiple operations of the harmonic gear drive. The higher the repeatable positioning accuracy, the smaller the repeatable positioning error of the output shaft. Different models of harmonic reducers have different repeatable positioning accuracies, generally ranging from 5" to 10".
The above are common parameters of harmonic reducers. When selecting harmonic reducers, it is necessary to comprehensively consider the impact of these parameters based on specific usage requirements to choose the appropriate model.
Machinery Manufacturing
Harmonic gear drives are one of the most important components in machinery manufacturing. They can help machines reduce speed and increase torque during operation to meet operational requirements and extend the service life of the machinery.
Precision Measuring Instruments
Harmonic gear drives can also be applied to precision measuring instruments, such as optical measuring instruments and precision instruments. In the process of precise measurement, the role of the reducer is to achieve accurate and precise measurement of the measured object by reducing the rotation speed.
Robotics
Harmonic gear drives, as one of the core components of robots, can achieve precise motion control and fast positioning of robots. At the same time, harmonic gear drives also have the characteristics of high rigidity and low inertia, ensuring the stability of robots during movement and improving motion efficiency.
Other Fields
Harmonic gear drives can also be widely used in other fields such as stage lighting. In these fields, the role of the reducer is mainly to control the rotation speed, direction, and position to achieve accurate control and operation.
In summary, harmonic gear drives, as indispensable components in modern industrial production, have the characteristics of precision, efficiency, and low noise, and are widely used in industrial production.
