四垄单行宝塔菜播种机的设计
发布时间：2018-07-27 16:11
【摘要】：作为宁夏特色农产品,宝塔菜是一种主要经济作物,对农民增收有重要作用,但其种植还未实现机械化,制约了宝塔菜产业链的发展。为了提高种植经济性和种植效率,设计一款符合宝塔菜农艺要求的播种机具有十分重要的意义。针对宝塔菜种植机械化需求,依据宝塔菜种植农艺要求,参照现有根茎类作物播种机的工作原理,首先进行了整体方案设计,然后对机架、开沟器、种子箱、排种器、地轮、覆土器、深浅调节机构、传动系统等进行设计,运用SolidWorks软件设计出了产品三维模型及产品工程图。在设计中,对宝塔菜播种机的关键功能机构(排种装置)应用TRIZ理论,进行了方案设计,得到了一种集理料、单粒排种功能为一体的精密排种机构,在设计排种装置时,根据宝塔菜物性,提出了一种适合宝塔菜形状的轮勺式排种轮。传动系统采用机械传动和液压传动组合的方式。最终得到了一款符合宝塔菜特性的悬挂式四垄单行宝塔菜种植联合机组。最后,利用EDEM软件仿真获得了排种装置的系统阻力,在此基础上利用ADAMS软件对排种装置传动系统进行了动力学仿真分析。仿真结果表明:排种装置中的各轴转速符合设计预期要求,各功能构件的速度匹配良好。在仿真的基础上,制作了排种试验台,进行了排种功能性验证。
[Abstract]:As a special agricultural product in Ningxia, pagoda vegetable is one of the main cash crops, which plays an important role in increasing farmers' income, but its planting has not been mechanized, which restricts the development of the industry chain of pagoda vegetable. In order to improve planting economy and planting efficiency, it is of great significance to design a planter that meets the requirements of pagoda agronomy. According to the requirement of planting mechanization of pagoda vegetables, according to the agronomic requirements and the working principle of the existing rhizome crop seeder, the overall scheme is designed first, and then the rack, trench opener, seed box, seeding device, ground wheel are designed. The three dimensional model and the engineering drawing of the product are designed by using the SolidWorks software, such as the earth cladding device, the deep and shallow adjusting mechanism, the transmission system and so on. In the design, the TRIZ theory is used to design the key function mechanism (seeding device) of the seed seeding machine, and a precision seed metering mechanism is obtained, which is integrated with the function of single grain seeding, and is used in the design of the seeding device. According to the physical properties of pagoda vegetables, a kind of wheel-scoop seed-discharging wheel suitable for the shape of pagoda vegetables was put forward. The transmission system adopts the combination of mechanical transmission and hydraulic transmission. Finally, a hanging four-row single-row pagoda plant combination unit was obtained in accordance with the characteristics of pagoda dishes. Finally, the system resistance of the seeding device is obtained by using the EDEM software, and the dynamic simulation analysis of the transmission system of the seeding device is carried out by using the ADAMS software. The simulation results show that the rotation speed of each axis in the seed metering device meets the expected design requirements and the speed of each functional component matches well. On the basis of simulation, the metering test bench is made and the function of seeding is verified.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S223.2
本文编号：2148375
[Abstract]:As a special agricultural product in Ningxia, pagoda vegetable is one of the main cash crops, which plays an important role in increasing farmers' income, but its planting has not been mechanized, which restricts the development of the industry chain of pagoda vegetable. In order to improve planting economy and planting efficiency, it is of great significance to design a planter that meets the requirements of pagoda agronomy. According to the requirement of planting mechanization of pagoda vegetables, according to the agronomic requirements and the working principle of the existing rhizome crop seeder, the overall scheme is designed first, and then the rack, trench opener, seed box, seeding device, ground wheel are designed. The three dimensional model and the engineering drawing of the product are designed by using the SolidWorks software, such as the earth cladding device, the deep and shallow adjusting mechanism, the transmission system and so on. In the design, the TRIZ theory is used to design the key function mechanism (seeding device) of the seed seeding machine, and a precision seed metering mechanism is obtained, which is integrated with the function of single grain seeding, and is used in the design of the seeding device. According to the physical properties of pagoda vegetables, a kind of wheel-scoop seed-discharging wheel suitable for the shape of pagoda vegetables was put forward. The transmission system adopts the combination of mechanical transmission and hydraulic transmission. Finally, a hanging four-row single-row pagoda plant combination unit was obtained in accordance with the characteristics of pagoda dishes. Finally, the system resistance of the seeding device is obtained by using the EDEM software, and the dynamic simulation analysis of the transmission system of the seeding device is carried out by using the ADAMS software. The simulation results show that the rotation speed of each axis in the seed metering device meets the expected design requirements and the speed of each functional component matches well. On the basis of simulation, the metering test bench is made and the function of seeding is verified.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S223.2
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