北京大兴国际机场线车辆牵引变流器冷却风机异常振动原因分析及维保措施
于欣杰
Analysis of Traction Converter Cooling Fan Abnormal Vibration and Maintenance Measures for Beijing Daxing International Airport Line Vehicles
YU Xinjie
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作者信息:河北轨道运输职业技术学院,050051,石家庄
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Affiliation:Hebei Rail Transportation Vocational and Technical College, 050051, Shijiazhuang, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.10.013
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中图分类号/CLCN:U264.5+5
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栏目/Col:研究报告
摘要:
通过在试验台上对冷却风机清灰前后的振动和平衡度测试，认为叶轮积灰是导致北京大兴国际机场线车辆牵引变流器冷却风机异常振动的原因。该线运营环境复杂，沿途受公路运输、土木工程、农垦耕作等影响，空气中灰尘、硅胶等颗粒物质较多，容易造成车辆牵引变流器冷却风机叶轮积灰，导致异常振动。提出了车辆牵引变流器冷却风机的现阶段维保措施和后续改进建议。
Abstracts:
Through testing the cooling fan vibration and balance degree before and after ash cleaning on the testbed, the cooling fan abnormal vibration of Beijing Daxing International Airport Line vehicles is detected as the dust accumulation on the impeller. The operation environment of this line is complicated, affected by road transportation, civil engineering, land reclamation and farming along the line, there are plenty dust, silica gel and other particulate matters in the air, all of these are very likely to cause dust accumulation on the cooling fan impeller of vehicle traction converter and leads to abnormal vibration. Finally, the maintenance measures for current stage and follow-up improvement suggestions for vehicle traction converter cooling fan are put forward.
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