CAJ | 학술논문

由于香蕉秸秆粗大、含水率高，现有的粉碎还田机大多操作繁琐、作业不稳定。针对上述问题，研制了一种喂入式立轴甩刀香蕉秸秆粉碎还田机，描述了该机的总体设计方案及主要部件的结构，分析了各部件之间的相互关系，确定了其关键参数的最优值。试验结果表明：该机在前进速度为2.16～3.60 km/h、压辊进料转速为127.39 r/min、立轴甩刀旋转速度为1080 r/min时，秸秆粉碎质量合格率达94.9%、田间覆盖率达88.61%、茎杆留茬高度为30～35 mm，一次作业可将秸秆粉碎成丝状残渣，且残渣抛洒还田均匀。试验结果对解决因秸秆难处理而制约农村合作社小规模种植的难题具有重要意义。
유우향초갈간조대、함수솔고，현유적분쇄환전궤대다조작번쇄、작업불은정。침대상술문제，연제료일충위입식립축솔도향초갈간분쇄환전궤，묘술료해궤적총체설계방안급주요부건적결구，분석료각부건지간적상호관계，학정료기관건삼수적최우치。시험결과표명：해궤재전진속도위2.16～3.60 km/h、압곤진료전속위127.39 r/min、립축솔도선전속도위1080 r/min시，갈간분쇄질량합격솔체94.9%、전간복개솔체88.61%、경간류치고도위30～35 mm，일차작업가장갈간분쇄성사상잔사，차잔사포쇄환전균균。시험결과대해결인갈간난처리이제약농촌합작사소규모충식적난제구유중요의의。
Bananas occupy an extremely important position in the world of fruit trade; it is the most important fruit in tropical and subtropical areas. China is one of the world’s largest producers of bananas, and bananas have become an agricultural pillar industry in China’s subtropical regions. However, the banana stalks are a major agricultural waste. According to the Food and Agriculture Organization (FAO), in 2010, 24 million tons of annual output of waste is banana straw in China. If such a large amount of waste straw is not handled in time, it would seriously pollute the environment and affect the renewal of the banana plantation. Because banana stalks are thick with a high level of moisture and other issues, there are less mature mechanical equipments for banana stalks treatment at the present. There are usually two main types of banana stalk treatment: one is to cut down and pile the stalk in the fields by laborers, and then let it rot; the other one is a centrally smash processing with machines. This kind of machine can achieve a certain crushing effect, but, due to the characteristics of its own design, can't achieve the field operations, and thus brings great inconvenience for the laborers. In view of above situations, according to craft about the banana stalks’ crushing and returning in the field, this study designed a feeding type vertical shaft flail extracting machine for banana stalks’ crushing and returning, and expounded the machine's overall configuration and the main components of the structure, and determined the key parameters of the optimal value through the analysis of the relationship between components and performance test. The machine could work directly in the field under the tractor traction, for the stalks to achieve down, tackle, grab, feed, crush and return. Field experiments showed that: with the speed for forwarding at 2.16 - 3.60 km/h, for the feed roller at 127.39 r/min, and for the vertical sling knife at 1080 r/min, this machine could achieve a qualification rate of straw smashing of 94.9%, field coverage of 88.61%, stem stubble height of 30 - 35 mm, energy consumption of 4.625 kg/h, and working efficiency of 0.39 hm2/h. This machine was easy to operate and its crushing effect was satisfactory. Its successful implementation could not only greatly improve the production efficiency, and solve the problem of large-scale banana cultivation facing massive stalks processing, but also prevent the pollution of the environment and had important economic and ecological benefits.