關鍵詞：無極變速 螺旋 給料器 變頻器
Design of continuously variable speed screw feeder
Abstract: Screw feeder is a common continuous conveyor that has not flexible traction, it is one of the important and indispensable manchinery and equipment .Widely used in warious industries, such as building materials, chemicals, power, metallurgy, coal, grain etc. Apply to horizontal and inclined conveying powder, granular and small bulk materials. Does not apply to transport perishable, viscous, easy caking materials. Screw feeder make up of trough, spirocheres, bearings and drive components. Spirochete is supported of both ends of bearings and the middle suspension of bearings, divern by the dive. Continuously Variable Transmission is adjusted motor speed by changing the frequency of AC, thus changing the speed. In the speed of the process, with the impact of small, gentle to exchange rate, it is an ideal high-efficiency and high-performance speed control means. It can meet the engineering requirements of the production and can also ruduce workers labor intensity, improve productivity, to achieve material handling process mechanization and automation.
The design uses ideas and methods of optimization, through the feeder allows the complete design and calculation of transmission capacity and efficiency of a more reasonable match, transmission performance and transmission capacity of the main parameters of the analysis and use in the production and improvement of practical rationality. Subject to the design research methods of screw conveyor, theoretical analysis combined the performance of the machine to conduct a comprehensive, parameters of in-depth study. According to model selection, design parameters to determine the principles and methods of identification of aircraft for the LS-type screw conveyor. Optimization of spiral blades, combined with the actual completion of work objectives through the calculated use of R-bend helical sounded style blade, to determine the most reasonable fill factor that is feeding quantity, pitch size. With frequency converter or motor, so screw conveyor applications to improve productivity, improve quality, increase the degree of automation equipment.
Keyword: Infinitely variable Spiral Feeder Inverter
目錄
1. 引言………………………………………………………（1）
2. 螺旋給料器概述
2.1 螺旋給料器的基本結構………………………………………………(2)
2.2 螺旋給料器的類型……………………………………………………(3)
2.2.1 水平螺旋給料器………………………………………………………(3)
2.2.2 傾斜螺旋給料器………………………………………………………(3)
2.2.3 垂直螺旋給料器………………………………………………………(4)
2.3 螺旋給料器的特點……………………………………………………(4)
2.4 螺旋給料器的研究現狀………………………………………………(4)
2.5 螺旋給料器的發展趨勢………………………………………………(5)
3. 螺旋給料器工作原理及主要構件的設計和選用
3.1 水平螺旋給料器的工作原理…………………………………………(6)
3.2. 螺旋體…………………………………………………………………(7)
3.2.1 螺旋葉片………………………………………………………………(7)
3.2.2 螺旋軸 ………………………………………………………………(11)
3.2.3 軸承 …………………………………………………………………(12)
3.2.4 機槽 …………………………………………………………………(13)
3.2.5 驅動裝置 ……………………………………………………………(17)
4. 水平給料器工作過程分析
4.1 物料的運動分析和葉片的設計…………………………………………(19)
5. 總體設計計算
5.1 被輸送物料的名稱及特性 …………………………………………(27)
5.2 選型要求 ……………………………………………………………(27)
5.3 螺旋給料器的設計計算 ……………………………………………(27)
5.3.1 確定螺旋直徑 D ……………………………………………………(30)
5.3.2 確定螺旋轉速 n ……………………………………………………(30)
6. 總體尺寸設計
6.1 LS 螺旋給料器的外形及尺寸 ……………………………………(31)
6.2 附件尺寸 ……………………………………………………………(31)
6.2.1 進出料口 ……………………………………………………………(31)
7. 無級變速器
7.1 變頻調速器 …………………………………………………………(33)
7.1.1 變頻調速器的基本原則 ……………………………………………(34)
7.1.2 變頻調速器的工作原理 ……………………………………………(35)
7.2 變頻調速器的選型 …………………………………………………(37)
7.2.1 變頻調速器的選用原則 ……………………………………………(37)
7.3 變頻調速器的特點 …………………………………………………(41)
7.3.1 變頻調速器優點 ……………………………………………………(41)
7.3.2 變頻調速器的缺點 …………………………………………………(45)
結 論 ………………………………………………………(47)
參考文獻 ………………………………………………………(48)
致 謝 ………………………………………………………(49)
