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Comparison of direct drive motors with other transmission methods

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Update time : 2019-03-23 20:51:59
 1. The main difference between the direct drive motor and the AC servo is its structure. The output torque of the AC servo is the output power of the output shaft, and the output shaft of the direct drive motor is the motor body. The load can be mounted directly on the motor body without the need for aDirect Driveitional transitions. Such as belts, reducers, gears, screw rods, etc., it is conducive to save space and reduce design difficulty.
         2. Since the direct drive motor is equipped with a high-resolution circular grating, it can be made one level higher than the ordinary AC servo. The absolute rotation angle error of its positioning accuracy can be accurate to ±1arc-sec to ±30arc-sec. Suitable for equipment mechanisms that require precise positioning.
         3. Constant torque characteristics: It works within the rated load range of the motor, and its operating characteristics will not change when the load changes. Suitable for work situations where the load changes frequently.
         4. Due to the direct connection method, the positioning error caused by the mechanical structure is reduced, and the process precision is ensured.
         5. In a direct drive, for the partial camshaft control mode, on the one hand, the dimensional error due to mechanical structure friction is reduced, and on the other hand, the noise during installation and use is also reduced.
         6, high rigidity, compact structure, high efficiency. The direct drive motor is very rigid and has a very hard characteristic when combined with a load. The unique design of the motor hollow not only reduces its own inertia, but also provides customers with a more convenient installation form. The combined mechanical structure will be more compact and the efficiency of use will be higher than other methods.
         7. direct drive motor driver is a digital electronic product. It is easy to interface with controllers such as PLC in practical applications. Moreover, when the indexing operation is implemented, only the corresponding indexing program needs to be written to the driver, and the external only needs the IO to control the starting action of the motor.