大米分級(jí)下料裝置及其整體結(jié)構(gòu)設(shè)計(jì)

包括論文，cad圖紙，答辯ppt

摘    要

本設(shè)計(jì)的設(shè)備是基于機(jī)器視覺(jué)技術(shù)的品質(zhì)檢測(cè)系統(tǒng)的大米分級(jí)裝置，分別對(duì)下料裝置和整體結(jié)構(gòu)進(jìn)行了改進(jìn)設(shè)計(jì)。下料裝置從整個(gè)設(shè)備中獨(dú)立出來(lái)，并改進(jìn)設(shè)計(jì)成了具有一定的可調(diào)性，針對(duì)于多種物料的送料料斗，使物料能一粒一粒依次地落至輸送帶上。整臺(tái)設(shè)備的動(dòng)力是由220V、420W交流低速電動(dòng)機(jī)所驅(qū)動(dòng)，且是利用計(jì)算機(jī)視覺(jué)檢測(cè)系統(tǒng)，模擬人的視覺(jué)功能，檢測(cè)大米的圖像信息，然后進(jìn)行分析和處理，并通過(guò)計(jì)算機(jī)程序?qū)LC發(fā)出指令，操縱氣閥的啟閉，最終把大米分離成六個(gè)等級(jí)，從不同的出料口中輸出。
關(guān)鍵詞：大米分級(jí)    品質(zhì)檢測(cè)    下料裝置    整體結(jié)構(gòu)設(shè)計(jì)    機(jī)器視覺(jué)技術(shù)

Classification Of Rice Under The Device And
                 Its Overall Structural Design
Abstract: The design of the equipment is based on the quality of machine vision technology detection system of rice classification devices, respectively, cutting devices and improved the overall design layout. Device under the devices from the whole independent and to improve the design has become a certain adjustable for a variety of materials in the feed hopper, so that materials can be an order to drop to a conveyor belt on. Driving force for the entire piece of equipment is 220V, 420W AC low-speed motor-driven and detected by use of computer vision systems, simulation of human visual function, detection of image information of rice, and then the analysis and processing, and through a computer program to give directions to the PLC , the gate control valve, and ultimately into the merits of the grade separation of rice from different feed the mouth of the output.
Key words:  rice classification    quality determination    cutting device     the overall structure design     machine vision technology

 
目        錄
1  緒    論 1
1.1 前言 1
1.2 大米概況及其質(zhì)量等級(jí)標(biāo)準(zhǔn)[1] 1
1.3  基于MVT的大米品質(zhì)檢測(cè)的發(fā)展概況及研究現(xiàn)狀[2] 3
1.3.1  國(guó)外對(duì)大米檢測(cè)的研究 4
1.3.2　國(guó)內(nèi)大米檢測(cè)研究現(xiàn)狀 4
1.3.3  稻米檢測(cè)裝置的研究簡(jiǎn)況 5
1.3.4 　存在的問(wèn)題 5
2 總體設(shè)計(jì) 7
2.1 工作原理 7
2.2 設(shè)備的組成 7
2.3  改進(jìn)前的工作原理圖 8
3  各零部件的設(shè)計(jì)和計(jì)算 9
3.1  輸送帶的設(shè)計(jì) 9
3.1.1  輸送帶的速度估算 9
3.1.2  輸送帶的材料選擇與結(jié)構(gòu)設(shè)計(jì) 9
3.2  電動(dòng)機(jī)的選擇[3][4] 9
3.2.1  電動(dòng)機(jī)的功率計(jì)算 9
3.2.2 電動(dòng)機(jī)轉(zhuǎn)速n的確定 10
3.2.3  電動(dòng)機(jī)的類(lèi)型結(jié)構(gòu)及型號(hào)的選擇 10
3.3  聯(lián)軸器的選擇[6] 11
3.4 軸的設(shè)計(jì)及校核[3] 12
3.4.1 主動(dòng)軸軸端直徑的確定 12
3.4.2 軸的結(jié)構(gòu)設(shè)計(jì) 12
3.4.3 軸的校核（按許用彎曲應(yīng)力校核） 12
3.5  鍵的選擇 15
3.6  軸承及軸承座的選擇 15
3.7 傳動(dòng)滾筒的設(shè)計(jì) 16
3.8 總體支架及外觀設(shè)計(jì) 16
4 下料裝置的設(shè)計(jì) 19
4.1 振動(dòng)電機(jī)的選擇 19
4.2 彈簧的設(shè)計(jì)及計(jì)算[4] 20
4.2.1 彈簧的端部結(jié)構(gòu)選擇 20
4.2.2 彈簧的設(shè)計(jì)計(jì)算 20
4.3 料斗的設(shè)計(jì) 23
4.4 下料裝置的總體設(shè)計(jì) 24
5 整體外觀設(shè)計(jì) 25
6 總   結(jié) 26
6.1 全文總結(jié) 26
6.2 創(chuàng)新點(diǎn) 26
參考文獻(xiàn) 27
致    謝 28