《气动射种器及其机构设计-说明书》.docVIP

摘要：迄今农作物机械化播种基本都是由入土装置先入土再将种子播入土壤的方式。由于入土装置与土壤直接作用，传统播种方式动力消耗较大，且不能适应近年来发展起来的多种先进农艺技术要求。为解决这些问题，所提出气动射种研究旨在开辟气动射种这一非接触式播种研究新领域。 本研究的核心是气动射种播种，为进一步探索这种非接触式播种方式的可行性，专门设计试制了气动射种播种试验装置。装置由机架、自动排种系统、气动射种元件、高压供气系统、控制电路等组成，是一个机电一体化集成系统。其工作原理是：在排种阀关闭时，由步进电机驱动排种器，将种子气动射种播种元件上部的给种阀；给种阀牵引电磁铁在高压气阀关闭时打开，将种子投入气动射种腔，然后关闭给种阀；高压气阀牵引电磁铁在给种阀关闭时打开高压气阀，那么种子在高压气体的作用下，排除箱体射入土壤，然后关闭高压气阀。由于排种和气动射种播种都是在给种阀关闭的状态下进行，因此可以同时动作，以提高工作效率。这一过程由控制电路进行智能控制。采用MSP430F123单片机作为整个装置的中央处理器。 关键词：非接触式播种，气动射种；播种方式；射种器 abstract：So far seeding in mechanization is basically the manner which device is first made to enter soil and then eject seeds into soil. As the device that enters soil direct contact with soil the amount of consumed power in traditional manner is greater. And it can adapt to the demand of various kinds of advanced agriculture technique developing in recent years. In order to solve the problems the research on pneumatic shooting-seed aim to cut new research domain which is pneumatic shooting-seed and no contacting semination. Research this core pneumatic to penetrate kinds of sowing, for explore this kind non- contact-type to sow the feasibility of the way further, have specially designed and trial-produced and penetrated kind and sown the experimental rig pneumatically. Device by framework, arrange system of planting automatically, pneumatic to penetrate kinds of component , high-pressure air supply system , control circuit ,etc. make up, it is a integrated integrated system of a piece of electromechanics. Its operation principle is: While arranging and planting the valve to close , walk into electrical machinery is it arrange device of planting to urge , make seed pneumatic to penetrate kind sow component giving kinds of valving top; Draw the electro-magnet to open when the pneumatic valve of high pressure is closed for one kind of valves, put the seed into and penetrate each pneumatically, then close to one kind of valves; The high-pressure pneumatic valve draws the electro