摘要
针对目前红花的采收效率低下,主要依靠人工采摘等问题,设计一种梳夹式红花采收机;结合红花植株高低不同和地形变化,设计一种可实现驱动红花采摘头工作以及可以随时根据地理环境调整红花采摘头转速的液压系统;采摘头转速范围为60~150 r/min,并可以根据植株的高低对采摘装置进行升降调节。通过工况分析和理论计算,对红花采收机液压系统主要元件进行选型,确定液压缸内径为80 mm,活塞杆直径为56 mm,选行程为350 mm。根据系统需求确定液压泵排量为45 mL/r。通过对液压系统的性能验算,可知液压系统压力损失为0.39 MPa,满足系统设计要求,通过对梳夹式红花采收机液压驱动系统仿真分析,仿真结果表明液压马达扭矩为515 N·m,与理论计算值509 N·m大小基本相符,满足采收机对动力的要求。为梳夹式红花采收机的研发提供理论依据。
In view of the low efficiency of safflower harvesting, mainly relying on manual picking problems, a comb-type safflower harvesting machine was designed. Combined with the difference of safflower plant height and topographical variation, a design can be designed to drive safflower picking head work. The hydraulic system can adjust the speed of the safflower picking head according to the geographical environment at any time;the picking head speed ranges from 60 to 150 r/min, and the picking device can be adjusted up and down according to the height of the plant. Through the analysis of working conditions and theoretical calculations, the main components of the hydraulic system of the safflower harvesting machine are selected, and the inner diameter of the hydraulic cylinder is determined to be 80 mm, the diameter of the piston rod is 56 mm, and the stroke is 350 mm. The hydraulic pump displacement was determined to be 45 mL/r according to system requirements. Through the performance check of the hydraulic system, it can be known that the pressure loss of the hydraulic system is 0.39 MPa, which meets the system design requirements. Through the simulation analysis of the hydraulic drive system of the comb-type safflower harvester, the simulation results show that the hydraulic motor torque is 515 N·m. It is basically consistent with the theoretical calculation value of 509 N·m, which satisfies the requirements of the harvester for power. Provide theoretical basis for the development of comb-type safflower harvesting machine.
作者
安亮亮
曹卫彬
李树峰
麻平
连国党
杨双平
An Liangliang;Cao Weibin;Li Shufeng;Ma Ping;Lian Guodang;Yang Shuangping(College of Mechanical and Electrical Engineering,Shihezi University,Shihezi,832000,China;Xinjiang Corps Agricultural Machinery Extension Station,Urumqi,830000,China)
出处
《中国农机化学报》
北大核心
2020年第1期37-42,共6页
Journal of Chinese Agricultural Mechanization
基金
新疆生产建设兵团科技攻关项目(2017AB020).
关键词
红花采收机
梳夹式
升降调节
液压系统
safflower harvesting machine
comb-clip type
lifting adjustment
hydraulic system
