需要金幣： 1000 個金幣 |
資料包括：完整論文 |  |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字數(shù)：18294 |  | |
| 折扣與優(yōu)惠：團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:為了減輕農(nóng)民的勞動強度，提高農(nóng)業(yè)作業(yè)的機械化程度，填補農(nóng)業(yè)機械的一項空白，針對玉米含水率高（將近30%左右），脫粒干凈、低破碎率和玉米芯完整等問題進行設(shè)計。主要研究玉米脫粒的方式、方法、玉米剝皮脫粒機的結(jié)構(gòu)、工作原理，設(shè)計整體結(jié)構(gòu)，并在此基礎(chǔ)上完成零部件的設(shè)計，并依據(jù)相關(guān)機械設(shè)計軟件來完成零部件的設(shè)計。本著從經(jīng)濟性和實用性的角度出發(fā)，針對農(nóng)業(yè)發(fā)展的需要設(shè)計出一種結(jié)構(gòu)簡單，工作效率高、能完成玉米剝皮和脫粒的的差速式免剝皮玉米脫粒機。 研究的主要內(nèi)容基本包括玉米剝皮脫粒機構(gòu)、裝置、電機的選擇、整機傳動方案的選擇計算。一般機械設(shè)計方法，多從總體方案開始，在總體方案中又首先從機構(gòu)的分析開始，確定方案后再進行必要的設(shè)計計算和結(jié)構(gòu)設(shè)計，最后以完成的設(shè)備圖紙和設(shè)計說明書作為整個設(shè)計計算的成果。在本課題的研究中，剝皮脫粒裝置由機蓋和兩輥筒組成，兩輥的轉(zhuǎn)向相同，在果穗與兩輥接觸部位的兩輥外緣處的兩切向力組成旋轉(zhuǎn)力矩，使果穗繞自身軸線旋轉(zhuǎn)，螺旋葉片的設(shè)置使果穗產(chǎn)生過沿平行于輥軸的軸向運動，在此過程中，在兩輥旋轉(zhuǎn)力矩的作用下完成玉米果穗的剝皮脫粒作業(yè)。該機突破了以往以打擊式脫粒的傳統(tǒng)方式，采用差速原理，同步進行剝皮和脫粒作業(yè)，實現(xiàn)了低沖擊、高效脫粒的效果，脫盡率高、破碎率低和玉米芯完好。 關(guān)鍵詞：差速；玉米；剝皮；脫粒；機械
ABSTRACT:In order to reduce the farmer labor intensity, improve agricultural mechanization of homework, fill a gap of agricultural machinery, in view of the corn with high moisture content (nearly 30%), threshing clean, low broken rate and complete several problems such as design. The main research corn threshing means, method, corn skinning threshing the structure, working principle, structure design, and on this basis to complete parts design, and according to the relevant mechanical design software to complete parts design. In line with from the point of view of economy and practicability, according to the needs of the development of agriculture designed a kind of simple structure, high efficiency, can finish stripping and threshing of corn of differential type from skinning threshers corn. The main contents include corn skinning threshing basic institution, device, the choice of the drive motor, the choice is calculated. General mechanical design methods, many from the overall scheme started, the overall scheme and the analysis of the first from the agency began, determine the scheme more necessary design calculation and structure design, and finally to complete equipment drawings and the design specification for the design and calculation results. In this topic research, skinning device by threshing machine cover and two roller composition, two roller turned to the same, in the ear and two rollers contact roller in two parts of the outer tangential force of the two rotating torque, make their own axis rotate around the average, spiral leaf Settings that have characterized the parallel to the axis of the roll shaft to the sport, in the process, in two roll under the effect of rotating torque finish the homework stripping out of corn ear. The machine broke through in their fight against type of threshing past traditional way, USES the principle of differential, synchronized skinning and threshing homework, realize low impact, efficient threshing effect, take off all rate is high, broken rate is low and several intact. Keywords: Differential type;Corn;Skin;Thresh; Mechanical
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