An anti breakable submersible linear motor driver, which includes a linear motor driver, is characterized by a groove in the axial direction of the non guided magnetic core of a linear motor, and a finite convex block at any place in the inner hole of the diaphragm. The spacing bumps of the spacer rings are located in the grooves of the non magnetic core shaft. The utility model realizes the long-term operation of the linear motor motion under the complicated environment of high temperature and high pressure in the downhole. The diaphragm and the non magnetic core axis are kept as one, and the faults of the non magnetic core shaft are broken and broken when the permanent magnet and the diaphragm are rotated at the same time during the operation of the linear motor. The high cost of maintenance, replacement of equipment and manpower resulting from the oil wells is avoided.
【技术实现步骤摘要】
防断脱的潜油直线电机动子
本技术属于一种潜油直线电机动子,特别是一种防断脱的潜油直线电机动子。
技术介绍
目前,国内外采油一般采用抽油机、抽油杆和抽油泵构成的采油机械,现有的采油机械存在体积大,成本高,无功损耗大,容易发生故障等缺点,为此研究开发的一种“往复式潜油电泵”(中国技术专利号:ZL200410050431.5)改变了原油开采的举升方式,具有结构简单、节能降耗、操作方便、在线调参等特点,彻底解决国内外长期困扰机械采油的抽油杆脱、断和管杆偏磨的难题。该产品不仅可替代原有的采油方式,还非常适用于水平井、定向井、低渗透油层井的开采。但是该产品通过现场十年时间使用实践,发现潜油直线电机动子出现断脱现象,使潜油直线电机动子无法正常进行往复运动,因此必须进行起井维修作业,不但大大降低了检泵周期,而且每次更换设备和人工所花费用需10万元左右。从技术上分析,现有潜油直线电机动子由永磁体、隔环、非导磁芯轴组成,永磁体与隔环依次间隔叠加穿入非导磁芯轴上,永磁体、隔环、非导磁芯轴三者均为个体,在外力作用下永磁体与隔环均可以以非导磁芯轴为中心,沿顺时针或逆时针进行转动,所以潜油直 ...
【技术保护点】
1.一种防断脱的潜油直线电机动子,它包括直线电机动子,其特征是:在直线电机动子非导磁芯轴沿轴向设有凹槽;在隔环内孔任意处设有限位凸块,进行直线电机动子装配时,永磁体与设有限位凸块的隔环依次间隔叠加穿入设有凹槽非导磁芯轴上,各隔环的限位凸块位于非导磁芯轴的凹槽中。
【技术特征摘要】
1.一种防断脱的潜油直线电机动子,它包括直线电机动子,其特征是:在直线电机动子非导磁芯轴沿轴向设有凹槽;在隔环内孔任意处设有限位凸块,进行直线电机动子装配时,永磁体与设有限位凸块的隔环依次间隔叠加穿入设有凹槽非...
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