2BZ-4型棘轮振动式油菜播种机设计与性能测试
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国家自然科学基金项目(51275197); “十二五”国家科技支撑计划项目(013BAD08B02); 国家油菜产业技术体系专项(CARS-13)


Design and performance testing of 2BZ-4 vibrational planter for rapeseed
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    摘要:

    为适应小田块油菜种植机械化的需求,利用振动破坏散粒体架空的原理,设计一种棘轮振动式油菜播种机,确定其主要结构和运行参数,得出在满足油菜播种各行稳定性和均匀性条件下,其排种单元最大的排种频率为6.3 Hz,最大理论作业速度为0.55 m/s; 分析棘轮转速与排种装置单行排种量稳定性、各行排种量一致性和总排种量稳定性之间的关系。性能测试结果表明:当棘轮转速为20~45 r/min时,排种装置具有良好的排种稳定性和均匀性;当棘轮转速为40 r/min时,总排种量稳定性变异系数和各行一致性变异系数最小,分别为1.08%和2.74%,且种子破损率为0.38%,能够满足播种机标准JB 6274.1-2001的技术要求。

    Abstract:

    Based on the principle of vibration damage for the granular mixtures overhead, a vibrational planter for rapeseed was designed to improve the planting efficiency of the small plots. The working principle and main structure of the vibratory planter were analyzed. The maximum frequency of metering device is 6.3 Hz, and maximum speed is 0.55 m/s. The relationship between rotation speed of ratchet and stability and consistency of the single row delivery capacity, the stability of the full delivery capacity was analyzed through the captive test of the seeding device. The experiments showed that the seeding device had good seeding stability and uniformity when the rotation speed range of ratchet was 20-40 r/min. The stability variability coefficient of the full seeding quantity is 1.08% and the consistency variability coefficient of seeding quantity is 2.74% when the rotation speed is 40 r/min, and the seed breakage is 0.38%,which meet the standard planter of the JB 6274.1-2001.

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方荣政,舒彩霞,廖宜涛,田波平,廖庆喜.2BZ-4型棘轮振动式油菜播种机设计与性能测试[J].华中农业大学学报,2015,34(5):115-120

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  • 收稿日期:2014-05-15
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  • 在线发布日期: 2015-07-22
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