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Stepper motor factory _ industrial stepper motor quotation

by:Zhenyu      2020-10-26
The classification step planetary gear motor is introduced: stepper motor from its structure form can constitute a reactive stepper motors, permanent magnet stepper motor, hybrid stepping motors, single-phase stepper motor, planar stepping motor and so on a variety of categories, in the currently adopted by the stepper motor is given priority to with reactive stepper motor. Performance and control method of stepper motor are closely related, stepping motor control system from its control method, can make the following categories: open loop control system, closed loop control system, half closed loop control system. A half closed loop control system in actual applications generally classified as open loop or closed loop system.



closed-loop stepper motor:

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 1. 2° , but poor dynamic performance, low efficiency, big fever, stability is difficult to guarantee.

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 15 & 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.

in the stator winding, a total of two phase, three-phase equals five series. Popular is the two-phase hybrid stepping motor, accounts for more 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 of 1. 8° Steps/step, with the upper drive, from the Angle of reduced to zero. 9° With subdivision driver after 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.
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