本文選題：青飼料收獲機 + 割臺��； 參考：《河北科技師范學(xué)院》2017年碩士論文

【摘要】：青飼料收獲機主要用來收獲玉米、高粱、牧草等作物,其發(fā)展對農(nóng)、畜牧業(yè)產(chǎn)生了巨大的影響,有效提高了農(nóng)、畜牧業(yè)帶來的國民經(jīng)濟。隨著科技的革新,青飼料收獲機的性能也在不斷的改進(jìn)。針對目前我國青飼料收獲機可靠性差、割幅小、高能耗、切斷不均及破碎率等問題,設(shè)計了高效、低能耗和高質(zhì)量的青飼料收獲機,以期有效改善青飼料收獲機的收獲效果及適應(yīng)性。本課題主要研究內(nèi)容包括以下幾部分:1.同軸雙轉(zhuǎn)速割臺本設(shè)計研究的青飼料收獲機收獲割臺為同軸雙轉(zhuǎn)速割臺,通過對刀盤上的刀片及割臺整體結(jié)構(gòu)進(jìn)行優(yōu)化設(shè)計,提高割臺喂入、切割效率,基于SolidWorks利用有限元分析對刀片進(jìn)行靜力學(xué)特性分析和模態(tài)分析。2.喂入切碎拋送裝置喂入切碎拋送裝置是青飼料收獲機的重要結(jié)構(gòu),其作用是由喂入輥將割臺割倒的秸稈壓縮、喂入到切碎器,再由切碎器將輸送過來的青飼作物莖稈切碎并由拋送裝置拋送至拋料筒。在對喂入切碎拋送裝置工作部件設(shè)計的基礎(chǔ)上,利用有限元分析對動刀片進(jìn)行靜力學(xué)特性分析和模態(tài)分析。3.籽粒破碎裝置針對青飼料收獲機9QSZ-3000在莖穗收獲蠟熟期玉米籽粒難破碎,影響青飼料適口性及消化吸收難的問題,設(shè)計了用于提高青貯玉米籽粒破碎率的對輥式籽粒破碎裝置,基于SolidWorks對盤刀及破碎輥軸進(jìn)行靜力學(xué)特性分析和模態(tài)分析。經(jīng)初步生產(chǎn)應(yīng)用,該籽粒破碎裝置結(jié)構(gòu)緊湊,工作面長度比傳統(tǒng)的破碎輥長3倍左右,降低約30%能耗,籽粒破碎率達(dá)到了90%以上。
[Abstract]:Green feed harvester is mainly used to harvest corn, sorghum, forage and other crops, its development has a great impact on agriculture and animal husbandry, and has effectively improved the national economy brought about by agriculture and animal husbandry. With the innovation of science and technology, the performance of green feed harvester is improving constantly. Aiming at the problems of poor reliability, small cutting width, high energy consumption, uneven cutting and breaking rate of green feed harvester in China, a green feed harvester with high efficiency, low energy consumption and high quality was designed. In order to effectively improve the harvesting effect and adaptability of green feed harvester. The main content of this research includes the following parts: 1. The harvesting table of the green feed harvester, which is designed and studied in this paper, is a coaxial double-speed cutting table. By optimizing the blade on the cutter head and the overall structure of the cutting table, the feeding and cutting efficiency of the cutting table can be improved. Based on SolidWorks, finite element analysis is used to analyze the static characteristics and modal analysis of the blade. Feeding, shredding and throwing device is an important structure of the green feed harvester. Its function is to compress the straw cut down by the feed roller and feed it into the shredder. The green forage crop stalks are then chopped by the shredder and thrown into the barrel by the throwing device. Based on the design of the working parts of the feeding, shredding and throwing device, the static characteristics and modal analysis of the moving blade are analyzed by using the finite element analysis (FEM). Aimed at the problem of difficult breakage of corn grain in the waxy stage of stalk and ear harvesting with 9QSZ-3000, which affected the palatability of green feed and the difficulty of digestion and absorption, the grain crushing device was designed to improve the crushing rate of silage corn grain. Based on SolidWorks, static analysis and modal analysis of disc cutter and broken roller shaft are carried out. Through the preliminary production and application, the grain crushing device is compact, the working face length is about 3 times longer than the traditional crushing roller, the energy consumption is reduced by about 30%, and the grain crushing rate is more than 90%.
【學(xué)位授予單位】：河北科技師范學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S817.11

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