3ZT-3型中耕追肥机设计与试验

针对中耕追肥机动力功耗大、除草效果不好和肥料利用率不高等问题,结合现有的中耕机械技术,研制出3ZT-3型中耕追肥机。该机通过施肥铲和前后松土铲,可以分别完成垄帮儿施肥和垄沟分层松土除草。为此,主要论述了追肥机整体结构、工作原理和主要工作部件的设计。田间试验结果表明:总排量稳定性变异系数为5.4%,各行排肥量一致性最大变异系数为6%,行间杂草除净率为95%,其它各项技术性能指标均符合设计要求,能满足实际工作需求。

Design and Experiment of the 3 ZT-3 Cultivator Fertilizer Machine

In order to solve the problems of the crops absorbing insufficiently fertilizer , the large power consumption and the low weeding rate , the 3 ZT-3 cultivator fertilizer machine was designed .The machine which had the fertilizer shovel and the scarification and weeding shovel was suitable for the cultivator ridging tillage .The machine could complete side deep fertilizing on the ridging platform and stratified scarification and weeding on the ridging furrow by one time .This ar-ticle mainly discussed the structure of the machine , working principle and the design of the main working parts .The re-sults of the field experiment showed that the total displacement stability coefficient of variation was 5 .4%, each row fer-tilizer consistency maximum coefficient of variation of 6%, inter row weeds in addition to the net rate of 95%, other the technical performance indicators were in line with the design requirements .Experimental results show that this machine can meet the practical needs of the work .