抽油机用大启动力矩多速电动机

针对抽油机用电动机普遍存在不能按生产工艺要求进行调速、电能浪费较大、胶带和抽油杆等易磨损及使用寿命短等问题，研制出一种为抽油机配套的新型大启动力矩多速电动机。其主要特点：（1）多速可调可控；（2）每一速度下均可带动抽油机一次平稳启动并长斯可靠运行，具有大启动力矩和大的输出功率；（3）同机座号的电动机外形及安装尺寸与普通Y系列电动机相同，便于更换安装。防护等级为IP44，适应野外工作环境。使用证明，新型电动机运行状况良好，比同机座号的Y系列电动机节电15％～35％；可减轻电动机轴承、减速器齿轮及抽油杆等的机械磨损，延长电动机、抽油杆及胶带轮等的寿命。

Multiple-speed motor with large starting moment for pumping unit

In the light of the problems with conventional electric motor used on pumping unit, such as speed being not able tobe adjusted, large power consumption, driving helt and sucker rod being apt to wear and short service life, a multi-speedmotor with large starting moment is developed. The new motor is characterized by (1) controllable multiple speed; (2)large starting moment and large power output; (3 ) convenient installation owing to having the same configuration andmounting dimension as the conventional Series Y motor. Application shows that, the new motor runs well with 15% ~35% less power consumption then Series Y motor, and by using the new motor, the wear of the motor bearing, reducergear and sucker rod can be reduced, thereby the life of the motor, sucker rod and driving belt pulley can be prolonged.