二维(2D)活塞泵原理性验证研究
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摘要
介绍了二维(2D)活塞泵的结构和工作原理,该泵利用活塞双自由度的运动原理(转动的同时能够轴向移动)来实现吸排油功能,并根据其工作原理给出了该泵的理论流量计算公式.为了验证二维(2D)活塞泵原理的可行性和初步测试该泵的容积效率,搭建了试验平台,设计了空载流量特性试验和负载压力流量特性试验.在空载和负载工况下,该泵都能正常完成吸排油工作.在空载工况下,随着转速升高实际流量呈线性增长,与理论流量接近.在负载工况下,随着压力升高,流量减小.通过试验验证了二维(2D)活塞泵的原理可行,容积效率在空载时较高,在负载时随压力增大有所下降.
The structure and the operating principle of the two-dimensional(2D)piston pump is introduced,the oil suction and extrusion functions are achieved by the motion principle of two degrees of freedom(rotate and axially move at the same time),and the theoretical flow formula of the pump is given.No-load flow characteristic test and pressure-flow characteristic test are designed in order to verify the feasibility of the principle prototype.Test bed is built in order to get its volumetric efficiency.The results show that the prototype can work properly both under no-load and load condition.The actual flow is close to the theoretical value and the pump has a high volumetric efficiency under no-load condition.Under load condition,volumetric efficiency decrease with the pressure increasing.
The structure and the operating principle of the two-dimensional(2D)piston pump is introduced,the oil suction and extrusion functions are achieved by the motion principle of two degrees of freedom(rotate and axially move at the same time),and the theoretical flow formula of the pump is given.No-load flow characteristic test and pressure-flow characteristic test are designed in order to verify the feasibility of the principle prototype.Test bed is built in order to get its volumetric efficiency.The results show that the prototype can work properly both under no-load and load condition.The actual flow is close to the theoretical value and the pump has a high volumetric efficiency under no-load condition.Under load condition,volumetric efficiency decrease with the pressure increasing.
引文
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[2]贾跃虎,王荣哲,安高虎.新型径向柱塞泵[M].北京:国防工业出版社,2012.
[3]裘信国.端面配流径向柱塞式液压泵特性的研究[D].杭州:浙江工业大学,2009.
[4]许耀铭.油膜理论与液压泵和马达的摩擦副设计[M].北京:机械工业出版社,1987.
[5]市川常雄.液压工程学[M].北京:机国防工业出版社,1982.
[6]阮健,杨继隆,历明忠.2D数字换向阀的步进特性分析[J].浙江工业大学学报,1999,27(1):1-5.
[7]李胜,朱小平,阮健,等.2D数字压力阀[J].浙江工业大学学报,2003,31(3):293-296.
[8]曾祥荣,叶文柄,吴沛容.液压传动[M].北京:国际出版社,1980.
[9]徐绳武.柱塞式液压泵[M].北京:机械工业出版社,1985.
[10]HOOKE C J,LI K Y.Slipper balance in axial piston pumps and motors[J].Transactions of the ASME,1992,114(4):766-772.
[11]张斌.轴向柱塞泵的虚拟样机及油膜压力特性研究[D].杭州:浙江大学,2009.
[12]那成烈.轴向柱塞泵可压缩流体配流原理[M].北京:兵器工业出版社,2013.
[13]马吉恩,徐兵,杨华勇.轴向柱塞泵流动特性理论建模与实验分析[J].农业机械学报,2010,41(1):188-194.
[14]邹正佳,李胜,阮健,等.2D数字伺服阀的动态特性实验研究[J].浙江工业大学学报,2011,39(4):429-432.