农机化研究2018，Vol.40Issue(11)：74-79,6.
水稻收割机液压系统升级改造
Upgrade of Rice Harvester Hydraulic System
摘要
Abstract
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 con-dition on bench test.Test shows that the new system adopts the shunt spool structure,which can satisfy the combined ac-tion of the system steering and the cutting table, the wheel and the grain unloading, and remarkably improves the effi-ciency;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 dif-ferent speeds,and convenience and high efficiency;The new system adopts the hydraulic motor to control the barrel rota-tion,the power density ratio is bigger than DC motor, and more safety,lower failure rate.关键词
水稻收割机/液压系统/升级改造/分流阀/调速阀/台架试验Key words
rice harvester/hydraulic system/upgrade/shunt valve/speed control valve/bench test分类
农业科技引用本文复制引用
何贤剑..水稻收割机液压系统升级改造[J].农机化研究,2018,40(11):74-79,6.基金项目
"十二五"国家科技支撑计划项目(2014BAF02B01) （2014BAF02B01）
