轴向柱塞马达广泛应用于航空航天、工程机械液压作动系统,容积效率是其重要指标。然而其柱塞副承载润滑状态恶劣,发生的磨损会导致泄漏损失增大,进而使马达的容积效率低于理想设计值。建立了轴向柱塞马达柱塞副磨损退化进程模拟模型,获得了其从跑合磨损到稳态磨损过程中承载界面轮廓的变化,基于此,对自然磨损状态下柱塞副泄漏行为进行分析。结果表明,随着缸孔的磨损,柱塞副泄漏量呈先增大后减小的趋势,柱塞副运行400 min时达到稳态磨损阶段,此时泄漏量相比初始泄漏量增加了2.3%。指出了柱塞副磨损状态和泄漏损失变化的映射关系,对提高轴向柱塞马达的容积效率和实现轴向柱塞马达磨损预测性维护具有一定指导意义。
Abstract
Axial piston motors are widely used in aerospace and construction machinery areas. and the volumetric efficiency is one of the significant performance characteristics of the axial piston motors. However, the wear of the piston/cylinder interface under poor lubrication conditions can lead to increased leakage loss and makes the volumetric efficiency of the motor lower than the ideal design value. In this paper, a simulation model for the wear degradation process of the piston/cylinder interface of the axial piston motor is established, and the characteristic of the cylinder wear contour from the running-in wear stage to the steady-state wear stage is obtained. Considering the natural wear of the cylinder bore, the micro-motion of the piston in the cylinder bore and the leakage behavior of the piston/cylinder interface is analyzed. The results indicate that the leakage flow of the piston/cylinder interface firstly increases, and then decreases to a value that is 2.3% higher than the original leakage at 400 minutes. The relationship between the leakage and the wear characteristics in this paper can guide the anti-wear design of the piston/cylinder interface and the predictive maintenance of wear of the axial piston motors.
关键词
轴向柱塞马达 ;
柱塞副 ;
磨损 ;
泄漏损失
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Key words
axial piston motor ;
piston/cylinder interface ;
wear ;
leakage loss
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基金
国家重点研发计划(2018YFB2001101);国家自然科学基金优秀青年科学基金(51922093)
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参考文献
[1] 邱寒雨,张春峰,徐兵,等.基于优化BP神经网络的快速起竖装置液压驱动系统故障诊断[J].液压与气动,2021,45(3):1-6.
QIU Hanyu, ZHANG Chunfeng, XU Bing, et al. Fault Diagnosis of Hydraulic Drive System of Rapid-erection Device Based on Optimized BP Neural Network [J]. Chinese Hydraulics & Pneumatics, 2021,45(3):1-6.
[2] 杨毅博,李运华.全飞行剖面下的航空液压泵热载荷分析与温度预测[J].液压与气动,2021,45(8):34-38.
YANG Yibo, LI Yunhua. Thermal Load Analysis and Temperature Prediction of Aviation Hydraulic Pump Under Full Flight Profile [J]. Chinese Hydraulics & Pneumatics, 2021,45(8):34-38.
[3] HUANG C, IVANTYSYNOVA M. An Advanced Gap Flow Model Considering Piston Micro Motion and Elastohydrodynamic Effect [C]//4th FPNI-PhD Symposium, Sarasota, USA. 2006:181-196.
[4] 聂松林,李壮云,余祖耀.轴向柱塞式液压马达转矩特性的理论研究[J].液压与气动,2002,(7):7-10.
NIE Songlin, LI Zhuangyun, YU Zuyao. Study on Torque Characteristic of Axial Piston Hydraulic Motor [J]. Chinese Hydraulics & Pneumatics, 2002,(7):7-10.
[5] 胡仁喜,苑士华,刘红宁,等.高压高速条件下柱塞副泄漏流场分析[J].农业机械学报,2009,40(4):221-226.
HU Renxi, YUAN Shihua, LIU Hongning, et al. Analysis on the Leaking Flow Field of the Piston Sector Considering the High Press and High Velocity [J]. Transactions of the Chinese Society of Agricultural Machinery, 2009,40(4):221-226.
[6] WIECZOREK U, IVANTYSYNOVA M. Caspar-a Computer Aided Design Tool for Axial Piston Machines [C]// Proceedings of the Power Transmission Motion and Control International Workshop, Bath, UK. 2000:113-126.
[7] WIECZOREK U, IVANTYSYNOVA M. Simulation of the Gap Flow in the Sealing and Bearing Gaps of Axial Piston Machines [C]//4th FPNI-PhD Symposium, Hamburg, Germany. 2000:493-507.
[8] WIECZOREK U, IVANTYSYNOVA M. Computer Aided Optimization of Bearing and Sealing Gaps in Hydrostatic Machines—The Simulation Tool Caspar [J]. International Journal of Fluid Power, 2002,3(1):7-20.
[9] XU B, ZHANG J, YANG H, et al. Investigation on the Radial Micro-motion About Piston of Axial Piston Pump [J]. Chinese Journal of Mechanical Engineering, 2013,26(2):325-333.
[10] XU B, WANG Q, ZHANG J. Effect of Case Drain Pressure on Slipper/Swashplate Pair Within Axial Piston Pump [J]. Journal of Zhejiang University-SCIENCE A, 2015,16(12):1001-1014.
[11] CHEN Y, ZHANG J, XU B, et al. Multi-objective Optimization of Micron-scale Surface Textures for the Cylinder/Valve Plate Interface in Axial Piston Pumps [J]. Tribology International, 2019,138:316-329.
[12] ARCHARD J. Elastic Deformation and the Contact of Surfaces [J]. Nature, 1953,172(4385):918-919.
[13] CHALLEN J, MCLEAN L, OXLEY P. Plastic Deformation of a Metal Surface in Sliding Contact with a Hard Wedge: Its Relation to Friction and Wear [J]. Proceedings of the Royal Society of London a Mathematical and Physical Sciences, 1984,394(1806):161-181.
[14] CHALLEN J, OXLEY P. An Explanation of the Different Regimes of Friction and Wear Using Asperity Deformation Models [J]. Wear, 1979,53(2):229-243.
[15] CHALLEN J, OXLEY P, HOCKENHULL B. Prediction of Archard's Wear Coefficient for Metallic Sliding Friction Assuming a Low Cycle Fatigue Wear Mechanism [J]. Wear, 1986,111(3):275-288.
[16] GODET M. The Third-body Approach: A Mechanical View of Wear [J]. Wear, 1984,100(1-3):437-452.
[17] 黄平,温诗铸.粘弹性流体动力润滑与润滑磨损[J].机械工程学报,1996,32(3):35-41.
HUANG Ping, WEN Shizhu. Visco-elastohydrodynamic Lubrication and Lubricated Wear [J]. Chinese Journal of Mechanical Engineering, 1996,32(3):35-41.
[18] WEN S, HUANG P. Principles of Tribology [M]. New York: John Wiley & Sons, 2012.
[19] ZOU Q, HUANG P. Abrasive Wear Model for Lubricated Sliding Contacts [J]. Wear, 1996,196(1-2):72-76.
[20] WILLIAMS J A. Wear and Wear Particles—Some Funda-mentals [J]. Tribology International, 2005,38(10):863-870.
[21] IVANTYSYNOVA M, HUANG C, JAPING A J. Determ-ination of Gap Surface Temperature Distribution in Axial Piston Machines [C]//ASME International Mechanical Engineering Congress and Exposition, Chicago, USA.2006:85-93.
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