抗弯强度是斜井潜油电泵机组能否通过斜井弯曲段 ,通过后能否恢复直线状态且保证机组正常工作的技术关键之一。根据电泵机组通过弯曲段的受力分析与计算 ,确定了机组的造斜曲率和变形量 ,随后选择两节外径为 95mm、长度为 4 8m的潜油电动机进行中间加力的抗弯性能试验。试验结果表明 ,电动机弯曲后几乎不产生变形 ,基本恢复直线状态 ,说明 10 2系列斜井潜油电泵机组可以通过套管内径为 12 3 7mm、造斜曲率为 10°/ 30m的斜井弯曲段 ,且通过后可以恢复直线状态和正常工作 The flexural strength is one of the key technologies for whether a submersible submersible pump unit can pass the curved section of an inclined shaft and whether the straight line state can be restored and the normal operation of the unit can be ensured. According to the force analysis and calculation of the pump unit through the bending section, the deformation rate and the deformation of the unit were determined. Then two submersible motors with an outer diameter of 95mm and a length of 48m test. The test results show that the motor is almost bent without any deformation, and the linear state is almost restored. This indicates that the 10 2 series inclined shaft submersible pump unit can pass through an inclined shaft with an inner diameter of 12 3 7mm and a bevel curvature of 10 ° / 30m Paragraph, and after the passage of the line can be restored and normal work