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自走式采茶机液压系统的设计和试验研究
引用本文:韩余,肖宏儒,秦广明,陈东胜,宋志禹,丁文芹,梅松.自走式采茶机液压系统的设计和试验研究[J].茶叶科学,2014,34(6):548-556.
作者姓名:韩余  肖宏儒  秦广明  陈东胜  宋志禹  丁文芹  梅松
作者单位:1. 农业部南京农业机械化研究所,江苏 南京 210014; 2. 云马农机制造有限公司,江苏 大丰 210021
基金项目:国家十二五科技支撑计划资助项目,现代农业茶叶产业技术体系资助,公益性行业专项,农业科技成果转化
摘    要:为了设计简单、合理、可靠的自走式采茶机液压系统,首先进行了其液压系统原理与选型设计,并利用Sim Hydraulic对液压系统进行了功能数值仿真,最后进行样机试验。行驶液压子系统采用双泵双回路闭式容积调速方案,单个回路由双向变量泵与定量马达实现容积调速,系统设计压力为17.6 MPa。采摘子系统为一般开式回路,设计系统压力为10 MPa。系统压力的仿真结果与设计值分别相差2.78%和0.91%,试验结果与设计值分别相差为4.82%和14.3%,仿真、试验结果与设计目标基本相符,表明设计的液压系统能够很好地满足自走式采茶机的作业要求。

关 键 词:自走式采茶机  液压系统  MATLAB  仿真  试验  
收稿时间:2014-03-05

Design and Test for Hydraulic System of Self-propelled Tea Plucker
HAN Yu,XIAO Hongru,QIN Guangming,CHEN Dongsheng,SONG Zhiyu,DING Wenqin,MEI Song.Design and Test for Hydraulic System of Self-propelled Tea Plucker[J].Journal of Tea Science,2014,34(6):548-556.
Authors:HAN Yu  XIAO Hongru  QIN Guangming  CHEN Dongsheng  SONG Zhiyu  DING Wenqin  MEI Song
Institution:1. Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture, Nanjing 210014, China; 2. Yun Ma Agricultural Machinery Manufacturing Co., LTD, Dafeng 210021, China
Abstract:To design a simple, reasonable and robust hydraulic system for self-propelled tea plucker, this paper designed the hydraulic system firstly based on analyzing the actions and operating environment of self-propelled tea Plucker, and then conducted a functional-simulation to whole system with Sim Hydraulic, including traveling simulating and plucking simulating. And also the prototype test was carried out. The system consists mainly of three subsystems: two closed travel loops, whose system pressure is 17.6 MPa, encompass separately a variable pump and a constant-displacement motor with a volumetric speed-control scheme; an open loop, whose pressure is 10 MPa, comprises a constant-displacement pump and a constant-displacement motor used for plucking. The disparity between simulating results and the design values of the system pressure was 2.78% and 0.91% respectively, the difference between test values and design values was 4.82% and 14.3%. All in all, both the simulation and the test were basically in accorded with the design, which indicates the well function of the designed hydraulic system meets well the needs of self-propelled tea plucking machine.
Keywords:self-propelled tea plucker  hydraulic system  MATLAB  simulation  experiment
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