The type and calculation method of stepping motor?
When stepping into the motor, the step distance Angle and mechanical system should be matched so that the pulse equivalent of the system is obtained. In the process of mechanical transmission in order to have a smaller pulse equivalent, it is can change the lead screw, 2 it is can be done through stepping motor subdivision driver. But segmentation can only change the resolution, not the accuracy. Accuracy is determined by the intrinsic properties of the motor. Select power stepping motor, it shall estimate the load moment of inertia of the mechanical load and machine tools required start frequency, make it match the inertia frequency characteristics of stepping motor and certain allowance, work of the high speed continuous frequency can meet the needs of the fast moving machine tool.
When stepping into the motor, the first step is to ensure that the output power of the step motor is greater than that of the load. And when choosing power stepping motor, first to compute the mechanical system of load torque, the torque of the motor frequency characteristics can satisfy the mechanical load and has a certain margin to ensure its reliable operation. During the actual working process, the load torque at various frequencies must be within the range of the moment frequency characteristic curve. Generally speaking, the maximum static moment Mjmax is large, and the load torque is large.
the installation specification of the motor, such as 57,86,110, is mainly related to the torque requirement. ? determine the location accuracy and vibration requirements: determine whether or not to subdivide, and how much segmentation is required. ? select the actuator for the current, subdivision, and power supply voltage of the motor. How do you calculate the method
To determine how much torque is required: static torque is one of the main parameters of the step motor. Large torque motor is required when loading. When the torque indicator is large, the motor is also large. ? judge the speed of the motor: when the speed requirement is high, the electric motor with a large current and low inductance should be chosen to increase the power input. The higher power supply voltage is applied when selecting the drive.
