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Stepping drive selection _ manipulator with stepper motor control

by:Zhenyu      2020-09-24
Stepping planetary gear motor on the structure there are three main types: reactive, permanent magnet, and hybrid.



reactive: are there on the stator winding and rotor is composed of soft magnetic materials. Simple structure, low cost, step Angle is small, can reach. 2° , but poor dynamic performance, low efficiency, big fever, difficult to ensure reliability.



permanent magnet, permanent magnet stepper motor rotor permanent magnet materials, the rotor pole and stator pole is the same. Is characterized by good dynamic performance, large output torque, step precision is poor, but the planetary gear motor torque Angle ( As a general rule, be 7. 5° Or 5 & deg; ) 。



hybrid: combines reactive hybrid stepping motor and permanent magnet, the advantages of the multiphase winding on the stator, rotor with permanent magnet materials, have multiple small teeth on the rotor and stator step in order to improve the torque accuracy. Its characteristic is the output torque, good dynamic performance and interval Angle is small, but the complex structure, the cost is relatively high.



stepper motor windings on the stator, a total of two phase, three-phase equals five series. Popular is a two-phase hybrid stepping motor, accounted for more than 97% of market share, high performance/price ratio, and the reason is, deserve to go up after subdivision driver effect is good. This kind of motor is apart from the Angle of the basics. 8° / step, with the upper stepper planetary gear motor drives, step away from the Angle of reduced to zero. 9° , deserve to go up after subdivision stepper motor drives the interval Angle can be subdivided by 256 times ( 0. 007° / micro step) 。 Due to friction and manufacturing precision, etc, the actual control precision is slightly lower. With the step motor can match different subdivision drive in order to change the accuracy and effect.



the above is the brief introduction of the stepper motor, if you are interested in our products, welcome calls to contact us.


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