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穴灌坐水播种机种水同位及水路系统关键部件设计
Structure and Working Mechanism of Key-parts for Irrigating-sowing Machine
【摘要】 针对当前坐水播种机具存在的结构复杂、种液播施难同位等问题,提出了"开沟-种、液同时播施-覆土-镇压"的机械作业新工艺,在此基础上设计了新型穴播穴灌坐水播种机实现种水同位的关键部件,并分析了种水同位机理。分析得到试验样机的排种周期与灌水周期均为2.27s,水路系统输水管Ⅰ的长度为200cm,输水管Ⅱ的长度为30cm,输水管内径d为2.5cm,单水箱水路总的水头损失为0.597m。
【Abstract】 A new seeding technique of irrigating-sowing machine was studied,it could ensure seeds and water to flow into seedbed furrow together in the same level.On the basis of general analysis,the key-parts of the irrigating-sowing machine was designed,and the working mechanism was studied.The sowing and irrigating time is 2.27s;the length of water pipeⅠis 200cm;the length of water pipeⅡis 30cm;the diameter of water pipe of exit is 2.5cm;and the total head loss of water-way of single water tank is 0.597m.
【关键词】 坐水播种机；
种水同位；
关键部件；
节水；
【Key words】 irrigating-sowing machine； seeds and water in same level； key-parts； water saving；
【Key words】 irrigating-sowing machine； seeds and water in same level； key-parts； water saving；
【基金】 国家“863”计划项目(2002AA2Z4111);江南大学青年教师科研启动资金(207000-21050705)
- 【文献出处】 沈阳农业大学学报 ,Journal of Shenyang Agricultural University , 编辑部邮箱 ,2008年04期
- 【分类号】S223.2
- 【下载频次】83