Research on the Flow Distribution Characteristics and Variable Principle of the Double-swashplate Hydraulic Axial Piston Electric Motor Pump with Port Valves

doi:10.3901/JME.2018.20.220

Abstract

Abstract: A kind of double-swashplate hydraulic axial piston electric motor pump with port valves is presented where cylinder is rotating along with the port valves, which is different from the conventional port-valving pump with the swashplate rotating and the cylinder mounted in the casing. The mathematic model of the pump flow distribution mechanism is established to study the effect of various structural parameters and operating parameters on the flow distribution characteristics, especially the effect of centrifugal force on the flow distribution characteristics of the poppet valve. Based on the simulation model and the pressure response curve and output flow curve of a single plunger chamber, the characteristics of the flow ripple and lateral force fluctuation of this type of pump are investigated. It turns out that large rotation speed of the pump will lead to the increase of flow pulsation and lateral force pulsation. The odevity of piston number has no obvious influence on the flow pulsation when piston number is large enough. And, even number of piston will produce larger lateral force pulsation than odd number of piston. A new principle of varying the displacement of axial piston pump with port valves is proposed, and regulating characteristics of the variable mode are studied. The experimental results of the prototype pump show that the operation principle of the pump is feasible and the application prospect of the double-swashplate hydraulic axial piston electric motor pump, or pump with port valves is forecast.

Key words: Crack, Frictional heat, Temperature evolution, Ultrasonic fatigue, Very high cycle fatigue, double-swashplate hydraulic pump, flow ripple, hydraulic electric motor pump, port valves, variable displacement pump

CLC Number:

TH137

ZHU Bihai, QIAN Pengcheng, JI Zengqi. Research on the Flow Distribution Characteristics and Variable Principle of the Double-swashplate Hydraulic Axial Piston Electric Motor Pump with Port Valves[J]. Journal of Mechanical Engineering, 2018, 54(20): 220-234.

References

[1] 杨华勇,张斌,徐兵. 轴向柱塞泵/马达技术的发展演变[J]. 机械工程学报,2008,44(10):1-8. YANG Huayong,ZHANG Bin,XU Bing. Development of axial piston pump/motor technology[J]. Journal of Mechanical Engineering,2008,44(10):1-8.
[2] 艾青林. 轴向柱塞泵配流副润滑特性的试验研究[D]. 杭州:浙江大学,2005. AI Qinglin. Experimental research on lubrication characteristics of port plate/cylinder block frictional pair in axial piston pump[D]. Hangzhou:Zhejiang University,2005.
[3] 王东,朱玉泉,李壮云,等. 海水轴向柱塞泵配流方式的发展状况[J]. 液压与气动,2001(7):29-32. WANG Dong,ZHU Yuquan,LI Zhuangyun,et al. The development of plate type in seawater axial piston pump[J]. Chinese Hydraulics and Pneumatics,2001(7):29-32.
[4] HARRISON A M,EDGE K A. Reduction of axial piston pump pressure ripple[J]. Proceedings of the Institution of Mechanical Engineers,Part I:Journal of Systems and Control Engineering,2000,214(1):53-64.
[5] 唐辉. 全水润滑阀配流液压泵的研究[D]. 武汉:华中科技大学,2013. TANG Hui. Research on a water-lubricated hydraulic pump with port valves[D]. Wuhan:Huazhong University of Science and Technology,2013.
[6] 朱碧海,吴肖宇,牛壮,等. 水液压双斜盘轴向柱塞式电动机泵试验研究[J]. 机械工程学报,2013(2):146-150. ZHU Bihai,WU Xiaoyu,NIU Zhuang,et al. Experimental research on the water hydraulic axial piston canned motor pump with double swash plate[J]. Journal of Mechanical Engineering,2013(2):146-150.
[7] 王伟伟. 液压电机泵转子动力学仿真与试验研究[D]. 武汉:华中科技大学,2015. WANG Weiwei. Dynamics simulation and experiment on hydraulic motor pump's rotor[D]. Wuhan:Huazhong University of Science and Technology,2015.
[8] 余祖耀,张铁华,李壮云. 柱塞泵中柱塞与缸孔环形缝隙的泄漏流量计算[J]. 机械工程师,2000(8):32-33. YU Zuyao,ZHANG Tiehua,LI Zhuangyun. Calculation of leakage flow rate of piston and cylinder annular slot in piston pump[J]. Mechanical Engineer,2000(8):32-33.
[9] 王东,李壮云,张铁华,等. 柱塞泵中柱塞摩擦副泄漏流量的分析[J]. 机械工程师,2002(4):45-46. WANG Dong,LI Zhuangyun,ZHANG Tiehua,et al. Analysis of the leakage flow rate of piston friction pair in piston pump[J]. Mechanical Engineer,2002(4):45-46.
[10] 马吉恩. 轴向柱塞泵流量脉动及配流盘优化设计研究[D]. 杭州:浙江大学,2009. MA Jien. Study on flow ripple and valve plate optimization of axial piston pump[D]. Hangzhou:Zhejiang University,2009.
[11] 杨曙东. 基于海水润滑的中高压海水液压泵研究[D]. 武汉:华中科技大学,2005. YANG Shudong. Research on seawater hydraulic pump with high pressure and seawater lubrication[D]. Wuhan:Huazhong University of Science and Technology,2005.
[12] MANRING N D. The discharge flow ripple of an axial-piston swash-plate type hydrostatic pump[J]. Journal of Dynamic Systems,Measurement,and Control,2000,122(2):263-268.
[13] 李壮云. 液压元件与系统[M]. 3版. 北京:机械工业出版社,2011. LI Zhuangyun. Hydraulic components and systems[M]. 3rd ed. Beijing:China Machine Press,2011.

[1]	ZHENG Jie, QUAN Wei, LIU Yang, LU Xuemin, LIU Xiaohong, YUE Yanan, ZHOU Teng, CAI Zhenbing. Research on Surface Cracks Identification of Cr/Zr Coating in Circumferential Compression [J]. Journal of Mechanical Engineering, 2024, 60(8): 1-10.
[2]	LIANG Peng, ZHAO Wenzhuo, WU Tonghai, RAN Yi. Ultrasonic Echo Characteristics and On-machine Detection Method of Small Tooth Cracks in Generator Rotors [J]. Journal of Mechanical Engineering, 2024, 60(8): 11-21.
[3]	WANG Boshi, CHEN Nannan, CAI Yan, WANG Min. Low-temperature Fatigue Ductile-to-brittle Transition Behavior and Mechanism for Simulated Coarse-grained Heat-affected Zone of a High-strength Low-alloy Bainite Steel [J]. Journal of Mechanical Engineering, 2024, 60(6): 271-278.
[4]	HUA Dongpeng, ZHOU Qing, WANG Wan, LI Shuo, WANG Zhijun, WANG Haifeng. A Molecular Dynamics Simulation on the Subsurface Damage Mechanism in the Nano-polishing Process of Silicon Carbide [J]. Journal of Mechanical Engineering, 2024, 60(5): 231-240.
[5]	LEI Zhen, JIANG Hong, ZHANG Xiangfeng, LI Jun, KONG Yiyi, BAI Yu. Evolutionary Analysis of Tooth Cracks in Planetary Gear Systems [J]. Journal of Mechanical Engineering, 2024, 60(19): 101-115.
[6]	GE Jiuhao, CHEN Xuanang, YANG Chenkai, XU Fei. Novel Method of Eddy Current Distribution Mapping Around Crack Using the Signal of Rotating Eddy Current Testing Technique [J]. Journal of Mechanical Engineering, 2024, 60(18): 17-23.
[7]	SUN Shiyong, ZHU Dianli, LI Jiaqi, FAN Junling, YANG Rui, ZHAO Yanguang. Dynamic Detection Method of Fatigue Crack Growth Based on Image Comparison [J]. Journal of Mechanical Engineering, 2024, 60(18): 24-31.
[8]	GAO Chong, DONG Lihong, WANG Haidou, LIU Bin, Lü Xiaoren. Research Progress on Fatigue Damage of Integrally Stiffened Structure [J]. Journal of Mechanical Engineering, 2024, 60(18): 116-127.
[9]	CHEN Jian, MENG Yixing, YUAN Shenfang, XU Qiuhui, WANG Hui. Digital Twins Prediction of Crack Growth Life for the Lap Joint Structure Combined with Guided Wave Monitoring Data [J]. Journal of Mechanical Engineering, 2024, 60(16): 34-42.
[10]	LI Yiran, YAO Junping, LIANG Chaoqun, XIAO Peng, CHEN Guoxin, LI Buwei. Crack Initiation and Propagation Mechanism of SiC/AZ91D Composites During Uniaxial Tensile Process Based on Three-dimensional Microstructure [J]. Journal of Mechanical Engineering, 2024, 60(16): 160-170.
[11]	ZHAO Lei, WU Yan, XU Lianyong, HAN Yongdian, XIONG Yu. Creep Crack Growth Rate Prediction Method for Welded Joints Considering Constraint Effect [J]. Journal of Mechanical Engineering, 2024, 60(14): 126-138.
[12]	DENG Zhiming, HUANG Tudi, HUANG Hongzhong, WEI Xunkai, WANG Hao. Study on Load Spectrum of Evolution Accelerated Test for Fatigue Spalling of Angular Contact Ball Bearings under Varying Working Conditions [J]. Journal of Mechanical Engineering, 2024, 60(13): 193-204.
[13]	WANG Hao, LIU Kun, LI Jie, YU Wenming, WU Hong, OKULOV Artem. Research Progress on Solidification Cracking of Aluminum Alloy During Welding and Crack Resistance of Filler Materials [J]. Journal of Mechanical Engineering, 2024, 60(12): 207-219.
[14]	TANG Pei, ZHANG Yong, JIA Yunfei, LI Xiao, WANG Yongji. Study on Low-cycle Fatigue Performance of Pure Titanium with Bimodal Structure: Experiment and Simulation [J]. Journal of Mechanical Engineering, 2024, 60(12): 228-239.
[15]	YIN Shaohua, ZHANG Zhenhua, SUN Zhiqiang, LUO Zhen. Long-term High Temperature Aging on the Microstructure of T23 Water-cooled Wall Welds Influences [J]. Journal of Mechanical Engineering, 2024, 60(12): 277-286.