装载机行走静液压传动系统特性仿真与试验研究
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摘要
静液压传动装置已被逐渐用于装载机的行走系统中,是由液压泵和液压马达组成的闭式液压传动系统。该文分析了装载机静液压传动系统的组成及工作原理,针对某4吨装载机研究了一种单泵-双马达行走静液传动系统。在AMESim环境下建立仿真模型,分析了静液压传动系统的特性。此外,还提出了一种针对单泵-双马达静液传动系统的变量调节规律,并将该规律在已经构建模型的基础上进行了仿真模拟。进行了某4吨装载机牵引特性试验,将仿真结果与整机试验进行对比,从而验证了静液传动系统仿真和变量调节规律的正确性。
Hydrostatic transmission has been gradually used in the loader's traveling system, which is a closed hydraulic transmission system composed of a hydraulic pump and a hydraulic motor. The composition and working principle of the hydrostatic transmission system is analyzed in this paper and a hydrostatic transmission system with a single pump and dual-motor has been studied for a 4 ton loader. A simulation model is established under AMESim environment in order to analyze the characteristics of the hydrostatic transmission system. A variable regulation law for the single pump and dual-motor hydrostatic transmission system is proposed, and the law is simulated on the basis of the constructed model. The traction characteristic test of a 4 ton loader was carried out, and the simulation results were compared with the whole machine test to verify the correctness of the simulation and variable adjustment law of the hydrostatic transmission system.
Hydrostatic transmission has been gradually used in the loader's traveling system, which is a closed hydraulic transmission system composed of a hydraulic pump and a hydraulic motor. The composition and working principle of the hydrostatic transmission system is analyzed in this paper and a hydrostatic transmission system with a single pump and dual-motor has been studied for a 4 ton loader. A simulation model is established under AMESim environment in order to analyze the characteristics of the hydrostatic transmission system. A variable regulation law for the single pump and dual-motor hydrostatic transmission system is proposed, and the law is simulated on the basis of the constructed model. The traction characteristic test of a 4 ton loader was carried out, and the simulation results were compared with the whole machine test to verify the correctness of the simulation and variable adjustment law of the hydrostatic transmission system.
引文
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[2]陈恒峰,郭辉,张学军,等.浅谈静液压技术在农业机械中的应用现状与发展趋势[J].新疆农机化,2016,(2).
[3]夏长高,高翠.基于Simulink拖拉机整体式HST电-液模拟特性分析[J].机械设计与制造,2011,(1).
[4]吴德友,罗艳蕾,辛亮.基于AMESim的静液压传动装置的特性分析[J].现代机械,2013,(5).
[5]高春雷.静液压闭式传动系统输出特性计算分析[J].铁道建筑,2005,(3).
[6]田晋跃,于英.车辆静液压传动特性研究[J].农业机械学报,2002,(4).
[7] Dasgupta K, Kumar N, Kumar R. Steady State Performance Analysis of Hydrostatic Transmission System Using Two Motor Summation Drive[J]. Journal of the Institution of Engineers,2013,94(4):357-363.
[8] Kumar A,Kumar N,Dasgupta K,et al. Analysis of Steady State Performance of an Open Loop Drive of a Hydraulic Motor Used in Hydrostatic Transmission System[J]. International Journal of Current Engineering and Technology, Special Issue-2(Feb2014).
[9] Dasgupta K. Analysis of a Hydrostatic Transmission SystemUsing Low Speed High Torque Motor[J]. Mechanism&Machine Theory,2000,35(10):1481-1499.
[10]姚怀新.行走机械液压传动与控制[M].北京:人民交通出版社,2002.
[11]唐曙光.静液压传动装置及其控制系统的设计分析[J].机电工程技术,2015,(9).
[12]徐绳武.泵控系统在国外的发展[J]·液压气动与密封,2010,(3).
[13]曾斌.静液压多马达传动系统浅析[J].液压气动与密封,2011,(10).
[14]陈金全,胡军科,张峥明.静液压驱动系统在高速越野叉车上的应用研究[J].现代制造工程,2010,(4).
[15]陈中武,何林,王斌斌,等.履带式静液压驱动收割机液压系统的设计[J].南方农机,2017,(11).
[16]黄松,冯勇建,黄志凌.静液压传动在装载机上的应用及参数匹配分析[J].机电技术,2011,(1)
[17]姜皓.静液压传动式车辆驱动系统的研究[D].北京:北京理工大学,2016.
[18]于庆丽,王刚.A4VG系列泵及其在静液压传动系统中的应用[J].工程机械,2012,(11).
[19]赵亮.全液压驱动底盘行驶驱动系统匹配及控制研究[J].中国工程机械学报,2013,(6).
[20] Ho T H, Ahn K K. Modeling and Simulation of Hydrostatic Transmission System with Energy Regeneration Using Hydraulic Accumulator[J]. Journal of Mechanical Science&Technology,2010,24(5):1163-1175.