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适合丘陵烟区的间歇作业型打窖机设计与性能试验

Design and performance test of intermittent operation cellar machine adapted to hilly tobacco areas

  • 摘要: 为了解决当前丘陵烟区井窖式膜上移栽作业中存在井窖质量低、机器适应性差的问题,设计了一种间歇作业型打窖机,运用Adams进行了运动学仿真,获得了成穴器运动轨迹;结合烟苗农艺性状要求对成穴器、升降机构等关键部件进行了设计与分析。并选用丘陵烟区一款连续作业型打窖机进行移栽环节的对比试验,通过检测井窖质量、孔距均匀性、纵向撕膜口及行直线度偏差等指标,考察该机器的作业效果。结果表明:与连续作业型打窖机相比,该间歇作业型打窖机的井窖直径合格率、井窖深度合格率分别高1.7%、3.4%,井窖直立度方差比连续作业型打窖机低1.33,成穴质量较好;间歇作业型打窖机的孔距变异系数、纵向撕膜口尺寸分别比连续作业型机器低1.03%、4.7 mm,表明间歇作业型打窖机的孔距均匀性好,对地膜的损伤程度小;行直线度偏差两种机器的差异性较小。因此,该间歇作业型打窖机可满足丘陵烟区井窖制作的农艺要求。

     

    Abstract: In order to solve the problems of low quality of well-cellars and poor adaptability of machine in the current well-cellars transplanting on film in hilly tobacco areas, an intermittent operation cellar machine was designed. The kinematics simulation was carried out by Adams, and the trajectory of the hole-opener was obtained. According to the agronomic requirements, the key components such as the hole-opener and the lifting mechanism were designed and analyzed. A continuous operation cellar machine in hilly tobacco areas was selected for comparative test of transplanting. The operation effect of the machine was determined by detecting the well-cellars quality, cellar spacing uniformity, longitudinal tear film size and line straightness deviation. The results show that compared with the continuous operation cellar machine, the qualified rate of cellar diameter and the qualified rate of cellar depth of the intermittent operation cellar machine are 1.7% and 3.4% higher, respectively. The variance of cellar uprightness is 1.33 lower than that of the continuous operation cellar machine, and the hole forming quality is better. The coefficient of variation of hole spacing and the longitudinal tear film size of the intermittent operation type cellar machine were 1.03% and 4.7 mm lower than those of the continuous operation cellar machine, respectively, which indicated that the hole spacing uniformity of the intermittent operation cellar machine was good and the damage degree to the plastic film was small. The difference between the line straightness deviation is small. In summary, the intermittent operation cellar machine can better complete the production of well-cellars in hilly areas. the intermittent operation cellar machine meets the agronomic requirements of well-cellars production in hilly tobacco areas.

     

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