本发明提供一种废旧有刷变桨电机延寿再制造方法，涉及电机再制造技术领域，包括S1：原废旧有刷变桨电机再制造性评估；S2：获取原废旧有刷变桨电机的物理属性；S3：根据原废旧有刷变桨电机的制造图纸或逆向测绘数据，利用数值解析有限元的设计思路，对再制造无刷变桨电机的电磁方案、结构性能参数等进行优化设计；S4：将设计出的组件再制造成新的无刷变桨电机并进行性能测试。本发明提供的方案在不改变原有安装尺寸及方式的前提下，将原有刷变桨直流电机再制造成永磁无刷电机，提高了资源利用率以及电机的使用寿命。

The invention provides a life-prolonging remanufacturing method for waste brushed variable paddle motor, which relates to the technical field of motor remanufacturing, including S1: remanufacturability evaluation of the original waste brushed variable paddle motor; S2: Obtain the physical properties of the original and waste brushed variable paddle motor; S3: Based on the manufacturing drawings or reverse mapping data of the old and discarded brushless paddle motors, the electromagnetic scheme and structural performance parameters of the remanufactured brushless paddle motors are optimized by using the design ideas of numerical analysis and finite element; S4: Remanufacture the designed components into new brushless motors and perform performance tests. Under the premise of not changing the original installation size and mode, the scheme provided by the invention reproduces the original brushless DC motor into permanent magnet brushless motor, thus improving the utilization rate of resources and the service life of the motor.