螺杆泵防反转装置内棘爪失效力学分析  

Mechanical Analysis of Failure of Inner Pawl in Anti-reversing Device of Screw Pump

作　　者：党黎明 王晓柏 宋超 吴春蕾 Dang Liming;Wang Xiaobai;Song Chao

机构地区：[1]太重集团(西安)装备技术有限公司,陕西省咸阳市712000 [2]三一机器人装备(西安)有限公司

出　　处：《工程机械》2023年第11期45-49,I0011,共6页Construction Machinery and Equipment

摘　　要：螺杆泵的防反转装置在停机后或卡泵时抑制反转,保证生产安全。对于棘轮棘爪式防反转装置,内棘爪是否失效直接决定防反转装置是否失效。采用理论力学的方法对内棘爪的失效原因进行定量分析。主要讨论并计算正常工作时、反转开始时的受力情况,临界转速和转矩,揭示内棘爪的失效原因,为内棘爪设计改进提供理论依据。The anti-reversing device of the screw pump inhibits reversal after shutdown or pumps jammed to ensure production safety.For the ratchet pawl type anti-reversing device,the failure of the inner pawl directly determines the failure of the antireversing device.Theoretical mechanics method is applied to quantitatively analyze the failure causes of the inner pawl.The force and the critical speed and torque during normal operation and at the beginning of reversal are mainly discussed and calculated,andthe failurecauses of the inner pawl are revealed,which provides a theoretical basis for the improvement of the design of the inner pawl.

关 键 词：螺杆泵防反转装置 内棘爪 离心力 惯性力 角加速度 

分 类 号：TH327[机械工程—机械制造及自动化]