排灌机械工程学报2011，Vol.29Issue(1)：61-66,6.DOI:10.3969.j.issn.1674-8530.2011.01.013
灯泡贯流泵机组支撑形式比较
Comparison of bulb tubular pump unit's support forms
摘要
Abstract
In order to optimize supporting structures of bulb tubular pump units and improve the properties, the supports of bulb tubular pump units were divided into 3 hierarchies, i.e.the bearing block support, the bulb support and the pump body support.The support forms of 3 typical bulb tubular pump units were investigated.The shaft deformations and fatigue strength safety factors were calculated through force analysis.Several typical support forms were compared in pump unit reliability, installation, maintainability and overall structure, and the pump system hydraulic performances.The design principles and methods of bulb tubular pump unit supports were put forward in bearing number and their arrangement and installation, the bulb supports and the pump body supports.The results show that supporting forms of bulb tubular pump units affect reliability, stability, installation and maintainability of the pump units and the pump system hydraulic performances.The flexivities of motor rotor and pump impeller reach 0.19 ～0.39 mm and 0.22 ～ 0.62 mm, respectively.The oil film thicknesses of journal bearings and rolling bearings are 0.41 ～0.53 mm and 0.12 ～0.17 mm, respectively.When determining the installation height of the bearing saddle, the flexivities of the rotor and the impeller and oil film thicknesses of the bearings should be considered so that the motor's air gap and the clearance between pump blade and shell are evenly distributed.The reliability and hydraulic performances of bulb tubular pump units could be improved by reasonably arranging guide bearings, adopting radiating plate support of the bulb, combining the maintenance channel and the main support which is under the bulb, and using the metal pipe pump structure.The achievements could provide references to optimum design of bulb tubular pump units.关键词
灯泡贯流泵机组/支撑形式/受力分析/装配质量/结构设计Key words
bulb tubular pump units/ support forms/ force analysis/ assembly quality/ structure design分类
农业科技引用本文复制引用
仇宝云,裴蓓,申剑,冯旭松,冯晓莉..灯泡贯流泵机组支撑形式比较[J].排灌机械工程学报,2011,29(1):61-66,6.基金项目
"十一五"国家科技支撑计划重大项目(2006BAB04A03) （2006BAB04A03）
全国百篇优秀博士学位论文作者专项资金资助项目(2007B41) （2007B41）
江苏省六大人才高峰专项资金资助项目(09-4-25) （09-4-25）
