共查询到19条相似文献,搜索用时 125 毫秒
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目前市场上销售的辣椒收获机均不配备物料清选系统,收获的辣椒含杂率较高,用户无法接受,导致辣椒机械化采收受限。本文设计了一种辣椒收获机的清选装置,并制作成台架进行试验验证,通过正交试验对影响清选效果的清选轮轴距、星形轮转速、整机喂入量以及清选风机转速等进行分析,基于含杂率和损失率要求确定了最优的参数组合。 相似文献
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4JD-2型悬挂式辣椒收获机的研制 总被引:1,自引:1,他引:0
<正>经调研和查新,目前国外辣椒收获机大多处在研发阶段,收获原理多为拨轮式、搅龙式、摘杆式,机型有侧悬挂双行机和自走式三行机,代表性为美国和巴拿马生产的辣椒收获机。由于辣椒机械化采摘难度大,需要解决的问题多,目前国内还没有该项技术的研究。 相似文献
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针对贵州山地土质松软,田块面积小、坡度大,现有辣椒收获机在山地上行驶困难等问题,设计一种适用于丘陵山地的履带自走式辣椒收获机,并以该收获机的底盘为对象,研究收获机在山地行驶过程中的通过性和稳定性。利用RecurDyn对底盘在横坡行驶、纵坡行驶、翻越垂直壁和跨越壕沟等过程进行仿真。仿真结果表明,收获机在黏土路面上满载行驶时,横坡行驶最大坡度角为22°,纵坡上坡最大坡度角为30°,纵坡下坡最大坡度角为21°,翻越垂直壁最大高度为510 mm,跨越壕沟最大宽度为1 020 mm。田间试验结果表明,收获机纵坡上坡、翻越垂直壁和跨越壕沟的极限值与仿真结果的相对误差分别为10%、1.96%和3.92%,吻合度较高。试验验证了收获机在行驶过程中具有较好的稳定性和通过性,能够满足现阶段贵州山地辣椒采收要求。 相似文献
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基于4LZ-3.0型自走式辣椒收获机工作原理与试验设计的科研项目,设计了一种新型的自走式辣椒收获机,探讨了其工作原理,并进行了田间试验。本次研究主要以我国内蒙古辣椒产区作为研究对象,首先,根据国内外在该技术领域最新的研究和经验,介绍4LZ-3.0自走式辣椒收获机的结构特点、工作原理,并进行有针对性、目的性的试验检测;其次,具体介绍一些比较关键的装置系统及零部件。在特定的试验环境下,针对椒叶悬浮速度和作业效率进行了性能检测,结果表明:椒叶悬浮速度基本维持在3m/s,在工作速度、生产效率、采摘净率及破损率等指标统计上,状态均较佳。 相似文献
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《Journal of Agricultural Engineering Research》1997,66(3):195-201
Paprika pepper is a traditional crop in Spain. Unfortunately, it is labour intensive and increasing manpower costs, relative to the product value, are such that the crop is now economically unattractive. Harvesting is the operation that requires most hand work, thus it is the most interesting to mechanize. Pepper harvesters already exist, but it was necessary to find one that was able to harvest the varieties of paprika pepper that are grown in Spain.At first, green bean harvesters were tried, but these were not suitable to work with Spanish varieties of peppers. Similarly, an American open helix harvester used in Murcia (Spain) was also found to be unsatisfactory. As a result of these negative experiences, an experimental prototype paprika pepper harvester was designed and built in 1992, adapted to Spanish conditions. A commercial harvester was constructed in 1993 and this tested in the three main paprika pepper production regions of Spain, namely, Murcia, Extremadura, and Valle del Ebro from 1993-1995.With the variety “Negral”, 89 to 95% of the production was collected with 4 to 11% trash, depending on the state of the crop and harvesting dates. With another widespread variety “Ocal ”, 90 to 93% of fruits were recovered, with 1 to 7% trash. All these results were obtained when the crops were in the best condition. These results are economically interesting, and can be obtained if farmers give more attention to cultural practices that favour mechanical harvesting, such as straight rows, plants with the fruits as high over the soil as possible, and avoid stones, clods and other obstacles that can be collected by the harvester. 相似文献
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农机与农艺相结合是一条适应当前农业机械研发的道路。该文通过对辣椒收获机研发现状及研究成果的分析总结,验证了农机农艺相结合是适合农机今后发展,并值得进一步在其他农机研发上推广借鉴的有效途径。 相似文献
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