飼料振動篩的設(shè)計

包括論文，整套cad圖紙，答辯ppt

摘    要
振動篩的研究不斷地向著標(biāo)準(zhǔn)化、系列化、通用化發(fā)展，并引入現(xiàn)代化設(shè)計手段，采用新材料、新技術(shù)、新工藝，其目的在于不斷擴大篩機應(yīng)用領(lǐng)域，滿足國民經(jīng)濟(jì)建設(shè)發(fā)展的需要，并擔(dān)當(dāng)對外出口的任務(wù)。
本文所設(shè)計的振動篩的篩分物料為飼料產(chǎn)品。該產(chǎn)品的大小不是很平均，為了做出更符合要求的物料就需要用振動篩來將球磨機產(chǎn)品進(jìn)一步細(xì)分，將不符合要求的物料重新用球磨機磨小。經(jīng)過這樣的反復(fù)處理最終將物料全部做成符合要求的產(chǎn)品。本課題的振動篩為自同步雙振動電機驅(qū)動的，其特點是結(jié)構(gòu)簡單、安裝方便、成本低、容易操作及維護(hù)等。其篩箱為板梁鉚焊組合結(jié)構(gòu)，由主副側(cè)板、管梁、入料擋板、出料板、篩板等組成，側(cè)板選用低合金壓力容器鋼板，強度高、可焊性好，周邊折彎，并在振動方向及沿縱向連接多根角鋼，使側(cè)板剛度大大增強，有利于強度的提高和噪音的降低。管梁由法蘭盤、無縫鋼管、加強槽鋼等組成，重量輕、強度大，便于制造安裝，具有互換性。加強槽鋼上有T形孔，使用T形螺栓，便于篩板的安裝維護(hù)，消除U形螺栓對管梁的磨損。工作原理：兩臺振動電機的型號相同，可以產(chǎn)生一種組合的直線振動。這種振動可以使輸送槽體中的物料運動，并與篩面發(fā)生碰撞，使小于篩孔的物料透過，從而實現(xiàn)物料的幾何分級，實現(xiàn)篩分?？傮w方案為：采用普通篩分法，振動形式為共振，運動軌跡為直線運動，激振方式為慣性式，隔振方式為一級隔振，隔振彈簧為金屬螺旋式隔振彈簧。

關(guān)鍵詞：振動篩; 篩箱; 振動電機

 
Abstract
The shaker research unceasingly to the standardization, the seriation, the universalized development, and the introduction modernization design method, uses the new material, the new technology, the new craft, its goal lies in unceasingly expands the sieve machine application domain, satisfies national economy construction the need to develop, and takes on the foreign exportation the duty.
Finally completely makes after such repeatedly processing the materi all tallies the request product. This topic shaker for self-synchronizing pair vibration motor-driven, Its characteristic is the structure simple, the installs convenient, the cost low, is easy to operate and the maintenance and so on. It sieves the box is board crossbeam riveting hitch welds built-up section, By host vice- side bar, Hollow beam, Enters the material back plate, Leaves material board, Sieves board and so on composition, The side bar selects the low-alloy pressure vessel steel plate, The intensity is high, The weldability is good, Peripheral knee bend, And in the vibration direction and along longitudinal connects themulti- roots angle steel, Causes the side bar rigidity big enhancement, Is advantageous to the intensity enhancement and noise reducing. Hollow beam by flange plate, Seamless steel pipe, Strengthens composition and so on channel steel, The weight light, the intensity is big, is advantageous for themanufacture installment, Has the interchangeability. Strengthens in the channel steel to have the T shape hole, Uses the T shape bolt, Is advantageous for screen board installs the maintenance, Eliminates the U shape bolt to the hollow beam attrition. Principle of work: Two vibrate the electrical machinery the model to be same, May have one kind of combination straight-line oscillation. This kind of vibration may cause in the transportation trough body thematerial movement, And has the collision with the screening surface, And has the collision with the screening surface, Thus realization material geometry graduation, Realization screening. The overall plan is: Uses the ordinary screening law, The vibration form for resonates, The path is the translation, Stirs up the strength vibration the way is the inertia type, The vibration isolation way is level of vibration isolations, The vibration isolation spring is the metal screw type vibrationisolation spring。

Keywords:the vibration screen; the box screen; the vibration electric machinery
 
目    錄
摘    要 I
Abstract II
第1章 概述 1
1.1國內(nèi)外現(xiàn)狀 1
1.2 振動機械的用途和分類 1
1.2.1 振動機械的組成 2
1.2.2 振動機械的特點 2
1.2.4 振動機械的分類 3
第2章 主要問題及解決方案 5
2.1 振動篩降噪措施 5
2.2 常見故障及處理措施 5
2.2.1 篩分時篩子不下料或下料不暢 5
2.2.2 篩框斷裂根 5
2.2.3 軸承過熱 5
2.2.4 篩分的分級(根據(jù)篩分的目的) 6
第3章 直線振動細(xì)篩的結(jié)構(gòu)、工作原理及總體方案的比較確定 7
3.1結(jié)構(gòu)及工作原理 7
3.2直線型振動細(xì)篩的特點 7
3.3 各類篩分方法的比較確定 8
3.3.1 普通篩分方法 8
3.3.2 概率篩分方法 9
3.3.3 等厚篩分法 9
3.3.4 概率等厚篩分法 10
3.3.5 篩分方法的確定 10
3.4 振動形式的確定 10
3.4.1 非共振篩 10
3.4.2 共振篩 10
3.5 運動軌跡的確定 10
3.5.1 圓運動軌跡 10
3.5.2 直線運動軌跡 11
3.6激振方式的比較 11
3.6.1 彈性連桿式 11
3.6.2 電磁式 11
3.6.3 慣性式 12
3.6.4 激振方式的確定 12
第4章 其它零部件的選擇 13
4.1隔振系統(tǒng)的選擇 13
4.2篩箱及篩面 13
4.2.1篩箱 13
4.2.2篩面的比較選擇 14
4.2.3 篩面的壓緊裝置 15
4.3支撐裝置的選擇 15
第5章 各部分設(shè)計計算 17
5.1運動學(xué)參數(shù)的選擇計算 17
5.1.1 物料運動狀態(tài)的選擇 17
5.1.2 安裝傾角的選擇 17
5.1.3 振動方向角的選擇 17
5.1.4 物料的平均速度 18
5.2工藝參數(shù)的確定 18
5.3動力學(xué)參數(shù)的選擇計算 18
5.3.1工作機體的質(zhì)量 18
5.3.2物料的結(jié)合質(zhì)量 19
5.3.3 隔振系統(tǒng)的頻率比及隔振彈簧剛度 19
第6章 結(jié)論 20
參考文獻(xiàn) 21
致   謝 22