排灌机械工程学报
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排灌机械工程学报  2012, Vol. 30 Issue (1): 35-39    DOI: 10.3969/j.issn.1674-8530.2012.01.008
泵理论与技术 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
滚柱转子油泵滚柱与配流盘间隙的计算
张生昌, 连加俤, 邓鸿英, 陈锡栋, 柯愈龙, 张玉林
(浙江工业大学化工机械研究所, 浙江 杭州 310014)
Calculation of gap between roller and valve plate for roller rotary oil pump
ZHANG Sheng-Chang, LIAN Jia-Di, DENG Hong-Ying, CHEN Xi-Dong, KE Yu-Long, ZHANG Yu-Lin
(Institute of Chemical Machinery Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China)
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摘要 针对杆式抽油泵效率低的问题,提出一种新型多级双作用滚柱转子式油泵.对多级双作用滚柱转子油泵结构特征及工作原理进行了介绍,该泵将滚柱与定子内壁的滚动摩擦代替传统的滑动摩擦,将单级滚柱泵设计为轴向多级串联形式,大大提高了泵排出压力.该泵同时采用双作用进出口设计,使得该泵转子轴及轴承径向受力平衡.对泵运转时滚柱受力状况进行了分析,建立了滚柱运动受力平衡方程,按滑动摩擦为最小原则,计算机编程实例准确地计算最优槽型夹角.分析了滚柱滚动条件,推导出滚柱端面摩擦合力矩,基于平行平板最佳缝隙原则,推导出滚柱端面与配流盘间隙计算式,并通过实例计算与分析,计算出实例泵滚柱端面与配流盘间隙大小.计算结果表明:间隙大小分别为h1=0.044 399 mm,[AKh-]2=0.055 975 mm,改善滚柱受力,同时可减小泵容积损失,提高泵效率,为泵的间隙设计计算及优化选择提供了一定的理论依据.
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张生昌
连加俤
邓鸿英
陈锡栋
柯愈龙
张玉林
关键词滚柱转子泵   配流盘   转子槽型   摩擦力矩   间隙     
Abstract: To improve the efficiency of rod oil pumps,a new type of multistage,doubleaction roller rotary oil pump was put forward.In the pump rolling friction pairs are used to replace the conventional sliding friction ones and that cause a lower friction loss.A structure of multiple stages in series was adopted to raise discharge pressure greatly.Meantime a doubleaction structure in the inlet and outlet chamber was applied to get the radial force on the rotor balanced.Through analysis of forces applied on a roller in the pump,a force equilibrium equation was established.Based on the principle of minimum sliding friction,an optimal slot width was determined precisely by means of a computer code composed.By analyzing the rolling condition of a roller,the equilibrium equation of frictional moments on the roller surface was deduced,and considering the principal of optimal gap between two flat plates,eventually,a formula for determining the optimal gap between the roller and the valve plate was deduced.For a design example,such an optimal gap was calculated.As the gaps     were 0.044 399 mm and 0.055 975 mm,respectively,the forces applied on rollers will be relief and the leakage will be reduced,subsequently the pump overall efficiency will be improved.The method proposed in the article comes up with a theoretical trial for determining,optimizing and choosing the gap to the pump.
Key wordsroller rotary pump   valve plate   rotor slot   friction moment   gap   
收稿日期: 2011-09-02; 出版日期: 2012-01-30
基金资助:

浙江省教育厅科研项目(Y201018610)

通讯作者: 张生昌(1956—),男,江西新干人,教授级高级工程师(zsc666@zjut.edu.cn),主要从事泵技术及特种泵开发研究.   
作者简介: 连加俤(1986—),男,福建三明人,硕士研究生(lianjiadi@163.com),主要从事泵技术研究.
引用本文:   
张生昌,连加俤,邓鸿英等. 滚柱转子油泵滚柱与配流盘间隙的计算[J]. 排灌机械工程学报, 2012, 30(1): 35-39.
ZHANG Sheng-Chang,LIAN Jia-Di,DENG Hong-Ying et al. Calculation of gap between roller and valve plate for roller rotary oil pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(1): 35-39.
 
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