There are additional torque, maximum torque and servo motor inertia and other parameters in the standard items of each type of servo motor, and there must be relevant contact between each parameter and load torque and load inertia, and the output torque of the servo motor should meet the requirements of the motion conditions of the load organization, such as the speed of acceleration and the component of the organization; methods of movement of the organization (horizontal, vertical rotation), etc.; There is no direct relationship between the motion condition and the output power of the servo motor, but the higher the output power of the servo motor, the higher the relative output torque. Therefore, not only the tissue components will affect the selection of the servo motor, but the motion conditions will also change the selection of the servo motor. The larger the inertia, the greater the acceleration and deceleration torque, and the shorter the acceleration and deceleration time, the greater the output torque of the servo motor. When selecting the servo motor standard, follow the following steps.
(1) Clear requirements for the movement conditions of the load tissue, that is, the speed of acceleration/deceleration, the speed of movement, the component of the tissue, the movement method of the tissue, etc.
(2) According to the requirements of the operating conditions, the appropriate load inertia accounting formula is selected to calculate the load inertia of the organization.
(3) According to the load inertia and servo motor inertia, select the appropriate false servo motor standard.
(4) Combined with the inertia and load inertia of the servo motor in the primary selection, the acceleration torque and deceleration torque are calculated.
(5) Calculate the load torque according to the load component, configuration method, friction coefficient and operation effect.
(6) The maximum output torque of the primary servo motor must be greater than the acceleration torque + load torque; If the conditions are not met, it is necessary to use other types of accounting verification until the requirements are met.
(7) The continuous instantaneous torque is calculated according to the load torque, acceleration torque, deceleration torque and holding torque.
(8) The additional torque of the primary servo motor must be greater than the continuous instantaneous torque, for example, if it does not meet the conditions, it is necessary to choose other types of accounting verification until it meets the requirements.
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