水稻收割机液压系统升级改造
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摘要
对某款传统水稻收割机液压系统进行分析,指出存在的问题,并进行针对性的升级改造。同时,对新系统原理进行深入分析,对其中的分流阀和调速阀工作原理进行重点阐述,并在台架试验台上对分流阀和调速阀进行不同负载工况测试。试验表明:新系统采用分流阀芯结构,可以满足系统转向与割台、拨禾轮及卸粮等联合动作,显著提升了效率。新系统采用调速阀控制拨禾轮马达方案,通过调整手柄行程,可以控制马达转速且转速稳定,适合收割不同转速要求的农作物,方便且效率高;采用液压马达控制炮筒旋转,功率密度比直流电机大,安全性能突出,故障率降低。
A traditional rice harvester hydraulic system is firstly analysed in this paper,and the key problems are pointed out. The traditional system is upgraded,and the new system 's principle is deeply analysed,meanwhile,the working principle of shunt valve and speed control valve are elaborated. And the two valves have been tested in different load condition on bench test. Test shows that the new system adopts the shunt spool structure,which can satisfy the combined action of the system steering and the cutting table,the wheel and the grain unloading,and remarkably improves the efficiency; The new system adopts the scheme of speed control valve to control the reel motor,which can be adjusted with the stroke of the handle to control the motor speed and the speed is stability,. it is suitable for harvesting crops requiring different speeds,and convenience and high efficiency; The new system adopts the hydraulic motor to control the barrel rotation,the power density ratio is bigger than DC motor,and more safety,lower failure rate.
A traditional rice harvester hydraulic system is firstly analysed in this paper,and the key problems are pointed out. The traditional system is upgraded,and the new system 's principle is deeply analysed,meanwhile,the working principle of shunt valve and speed control valve are elaborated. And the two valves have been tested in different load condition on bench test. Test shows that the new system adopts the shunt spool structure,which can satisfy the combined action of the system steering and the cutting table,the wheel and the grain unloading,and remarkably improves the efficiency; The new system adopts the scheme of speed control valve to control the reel motor,which can be adjusted with the stroke of the handle to control the motor speed and the speed is stability,. it is suitable for harvesting crops requiring different speeds,and convenience and high efficiency; The new system adopts the hydraulic motor to control the barrel rotation,the power density ratio is bigger than DC motor,and more safety,lower failure rate.
引文
[1]王飙,刘峰,李云伍.我国水稻收割机的发展现状及发展方向[J].农机化研究,2013,35(10):226-229.
[2]杨磊,肖丽萍,耿兆奎,等.我国半喂入水稻联合收割机的现状与发展趋势分析[J].中国农机化学报,2014,35(1):8-10.
[3]宗俊杰,李军榜.多级调压回路在联合收割机液压系统中的应用[J].农业机械,2009(4):81-82.
[4]曹玉宝,王宏.联合收割机的典型液压系统[J].农业装备与车辆工程,2006(7):43-45.
[5]徐寿国,李景晖,沈振嗣,等.可供设计联合收割机时选配的各种液压系统简介[J].农业机械,2007(1B):79-80.
[6]许福玲,陈尧明.液压与气压传动[M].北京:机械工业出版社,2005.
[7]何贤剑,陈净生,呼延宏,等.一种收割机的液压系统:中国,201610772984.4,201621007267.4[P].2016-08-30.
[8]何贤剑,陈净生,呼延宏,等.一种收割机的控制阀组:中国,201610772985.9,201620998176.5[P].2016-08-30.
[9]呼延宏,杨济铭,何贤剑,等.一种液压调速阀:中国,201510019595.X,201520025515.7[P].2016-08-30.
[2]杨磊,肖丽萍,耿兆奎,等.我国半喂入水稻联合收割机的现状与发展趋势分析[J].中国农机化学报,2014,35(1):8-10.
[3]宗俊杰,李军榜.多级调压回路在联合收割机液压系统中的应用[J].农业机械,2009(4):81-82.
[4]曹玉宝,王宏.联合收割机的典型液压系统[J].农业装备与车辆工程,2006(7):43-45.
[5]徐寿国,李景晖,沈振嗣,等.可供设计联合收割机时选配的各种液压系统简介[J].农业机械,2007(1B):79-80.
[6]许福玲,陈尧明.液压与气压传动[M].北京:机械工业出版社,2005.
[7]何贤剑,陈净生,呼延宏,等.一种收割机的液压系统:中国,201610772984.4,201621007267.4[P].2016-08-30.
[8]何贤剑,陈净生,呼延宏,等.一种收割机的控制阀组:中国,201610772985.9,201620998176.5[P].2016-08-30.
[9]呼延宏,杨济铭,何贤剑,等.一种液压调速阀:中国,201510019595.X,201520025515.7[P].2016-08-30.