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1·No commutator motor is a new variable-speed motor, its adjustable-speed performance is more advantage than dc system.

无换向器电动机是一种新型的可调速电机，其调速性能优于直流调速系统。

2·The commutator motor includes a stator and an armature. The stator includes a stator iron core having the main poles and slots and the field windings disposed in the slots.

本发明涉及的具备定子和电枢的换向器电动 机，定子具有具备主磁极和沟槽的定子铁芯、以及配置于沟槽的励磁线圈；

3·Usage: suitable for automatic wire winding of even number slot motor with hook commutator rotor.

用途：适用于偶数槽电机带钩换向器转子的自动绕线。

4·Usage: suitable for automatic wire winding of electric tool, series motor, slot type no hook commutator.

用途：适用于电动工具、串励电机、无钩槽形换向器的自动绕线。

5·Basic formulas for the calculation of bar to bar voltage distributing curve of DC motor commutator are derived and test-verified.

文中导出了计算直流电机换向器片间电压分布曲线的基本公式和试验验证；

6·Innovating conceit and technical experimental study on motor commutator manufacturing technics was reported in this paper.

介绍了对电机换向器现行制造工艺中的一种革新构想与工艺试验研究。

7·Usage: suitable for motor commutator high precision automatic lathing.

用途：适用电机换向器高精度自动车削。

8·Usage: suitable for auto starting motor armature commutator pressing in and pressing into commutator welding slot after wire winding.

用途：适用于汽车起动电机电枢换向器压入及绕组后压入换向器焊接槽。

9·Variable magnetic pole DC motor can resolve the problem of commutator existing in the traditional DC motor.

变磁极性直流电机解决了传统直流电机的换向器问题。

10·The experiment method on sensorless speed estimation in DC motor and three special cases of DC motor with different number of poles and different number of commutator bars were presented.

介绍了直流电动机无传感器测速的实验方法，并选取了三台不同结构的直流电动机进行实验。