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1、振动筛式花生收获机的设计该文档由3A学习网提供 百度一下：3A学习网摘要 花生不仅是优质油料作物，而且是主要的蛋白资源，加工品类多，产业链条长，现已 成为中国重要的出口创汇产品和农业结构调整重点发展和扶持的种植品种。在消费结构和出 口结构不断调整和优化的双重拉动下，花生生产得到长足发展，并逐渐向主产区相对集 中， .vp 摘要 vbr / 花生不仅是优质油料作物，而且是主要的蛋白资源，加工品类多，产业链条长，现已成为中 国重要的出口创汇产品和农业结构调整重点发展和扶持的种植品种。在消费结构和出口结构 不断调整和优化的双重拉动下，花生生产得到长足发展，并逐渐向主产区相对集中，优势产 业带基本形成
2、。但是中国花生生产机械化发展却严重滞后，特别是用工量占生产全过程1/3 以上、作业成本占生产总成本50%以上的收获作业，目前主要依靠人工完成，劳动强度大、 作业成本高、效率低、损失大、成本高已成为生产发展与产业成长的主要瓶颈，国内对花生 机械化收获技术装备的需求日趋迫切。vbr /设计了振动筛式花生收获机的总体结构、工作原理、技术特点以及关键部件结构与工作参数 设计等。该设备主要由挖掘铲、振动筛、行走轮、动力传动装置及机架等组成，与1113.2kw 拖拉机配套使用，一次完成两行花生收获，挖出来的花生秧被传送到振动筛上，经过振动筛 的振动去除挖掘出的花生所带有的泥土，最后通过输送板实现花生秧一侧
3、倒伏的工作原理。 该机具有作业顺畅、运行可靠、清土率高、损失率低等特点，纯生产率达0.1 hm2/h。 vbr / 关键词：振动筛，收获机，机械化，花生vbr /vbr /Abstractvbr /Peanut oil is not only a high-quality, and is the main protein resources, processing category, and industry chain length, has become Chinas important export products and focus on the development of agr
4、icultural restructuring and support the cultivation of varieties. In the consumption structure and export structure adjustment and optimization of dual-drive, the rapid development of peanut production, and gradually the relative concentration of the main producing areas, with the basic formation of
5、 competitive industries. However, peanut production mechanization in China are seriously lagging behind, especially in the whole process of production and employment accounts for 1 / 3 of the above, operating costs account for the production of more than 50% of the total cost of harvesting operation
6、s, mainly rely on manual completion of the current, labor-intensive, operating costs are high, low efficiency, loss, and the high cost of development and production has become a major bottleneck in the growth of industry, mechanization of domestic peanut harvest technology and equipment needs of the
7、 increasingly urgent. Introduced a shaker-style peanut harvester of the overall structure, working principle and technical characteristics of the key components of the structure and design operating parameters. The device mainly by the mining shovel, vibration screen, vibration-drive components, run
8、ning wheel, power transmission and chassis components, etc., and 11 13.2kw supporting the use of tractors, two lines of a complete peanut harvesting, dug out the peanut seedling was sent to the shaker, after the vibration shaker to remove excavated soil associated with the peanut, and finally throug
9、h the transportation board to achieve the side of peanut seedling lodging works. It has a smooth operation, reliable operation, high rate of land clearance, and low loss ratio, net productivity of 0.1 hm2 / h.Keywords: vibrating screen, harvesting machines, mechanization, peanuts. 目录 字&nb
10、sp; 9 张 cad 图纸vbr / 摘要 &n bsp ;&n bsp ;&n bsp; lvbr / ABSTRACT 2第一章 绪论 3 v/span 1.1 研究的目的和意义 31.1.1 中国花生生产现状 31.1.2 中国花生的种植方式 41.1.3 花生生产机械化现状 51.2 研究目标与
11、内容 6第二章振动筛式花生收获装置的设计原理 72.1 设计依据 72.2 设计方案的选择与分析 82.3 总体设计简介 82.4 作业原理 8第三章主要参数确定与关键部件设计 93.1 主要参数确定 93.1.1花生收获机的功率计算 &nb
12、sp; 93.1.2挖掘铲主要参数的确定 10vbr /3.1.3带轮及带的主要参数确定 143.1.4平行连杆机构的主要参数及行走轮的设定 153.1.5 轴的校核 163.2 总体装配 19第四章 结语 20 参考文献 21 vfont color=#9a9a9av/font 致谢 22 v/
13、p v/pvPv/P vp风道壳体工艺分析及注射模具设计（含CAD零件图和装配图）（包含选题审批表，任务书， 开题报告,中期检查报告，毕业论文说明书字,8张cad图） 摘要：塑料工业是当今世界上增长最快的工业门类之一，而注塑模具是其中发展较快的种类， 因此，研究注塑模具对了解塑料产品的生产过程和提高产品质量有很大意义。 本设计介绍了注射成型的基本原理，特别是单分型面注射模具的结构与工作原理，对注塑产 品提出了基本的设计原则；详细介绍了冷流道注射模具浇注系统、温度调节系统和顶出系统 的设计过程，并对模具强度要求做了说明；最后介绍了当今世界上最为普及的三维 CAD/CAM系统标准软件PRO/ENG
14、NEER的PROGRAM模块，对导柱和导套进行了参数化 设计。 关键词：塑料模具；参数化；镶件；分型面vbr /Dseign Of Ventilation Pipe Shell Process Analysis And Injection MoldAbstract: Plastic industry is in the world grows one of quickest industry classes， but casts the mold is development quick type， therefore， the research casts the mold to under
15、stand the plastic product the production process and improves the product quality to have the very big significance. This design introduced the injection takes shape the basic principle， specially single is divided the profile to inject the mold the structure and the principle of work， to cast the product to propose the basic principle of design; Introduced in detail the cold flow channel injection evil spirit mold pours the system， the temperat
