外壳水冷式隔爆型电动机冷却水路有限元分析  

FEM analysis of water-cooling channel for water-cooling flameproof motor

作　　者：何惠明[1] 白保东[1] 王禹[1] 肖红 杨晓洲 范作智 

机构地区：[1]沈阳工业大学电气工程学院,辽宁沈阳110870 [2]抚顺煤矿电机制造有限责任公司,辽宁抚顺113122

出　　处：《电机与控制学报》2012年第7期40-44,共5页Electric Machines and Control

基　　金：辽宁省教育厅2007年度创新团队项目基金(2007T123)

摘　　要：煤矿井下用外壳水冷式隔爆电动机在使用过程中电动机外壳容易变形,无法从机组中抽出,影响电机的更换和机组维护。针对此问题,提出了在外水套增加小孔塞焊点的解决方案,基于弹性力学基本方程及有限元分析方法,应用SolidWorks的COSMOSXpress软件,分别计算了3.0MPa水压下传统式冷却水套和带有小孔塞焊点新型冷却水套的应力及形变;对增加小孔塞焊点的新型冷却水套及传统冷却水套分别进行了水压实验,新型外水套形变明显减小。实验结果与仿真结果具有一致性,证明了增加小孔塞焊点减小外水套应力及形变的有效性。增加小孔塞焊点的新型外水套冷却结构可以适应较高水压以达到增加电机散热效果的目的。The coal mining water-cooling flameproof motor cannot be drawn out from the motor unit because of deformation of its shell, which makes it difficult to change the motor and maintain the motor unit. The method of adding keyhole caulk weld spots on the outer cooling water jacket was proposed to solve the problem. Based on the elasticity mechanics equations and the principle of finite element method, the stresses and the deformations of the traditional outer cooling water jacket and the outer cooling water jacket with keyhole caulk weld spots were calculated separately in 3.0 MPa hydraulic pressure by Solid Works COSMO- SXpress finite element analysis method. Water press experiments of the two cooling water jackets were implemented. Obviously, the stress and the deformation of the new cooling water jacket were lower. The experimental result is consistent with the simulation results. It is effective to reduce the stress and the deformation of the cooling water jacket by adding the keyhole caulk weld spots. The new high strength type of water-cooling structure can adapt the high hydraulic pressure to increase the heat release.

关 键 词：有限元分析 冷却系统 形变 应力分析 隔爆 

分 类 号：TM357[电气工程—电机]