倉庫大門開閉機構設計

機械論文編號:JX347  所有圖紙,任務書,外文翻譯。論文字數:20039.頁數:74

目    錄
1 緒論1
1.1 概述..........................................................1
1.2 鏈傳動........................................................1
1.3 齒輪傳動......................................................3
1.3.1 齒輪傳動發展趨..............................................3
2 鏈傳動部份的設計................................................5
2.1 鏈的設計................................................................5 

2.2 滾子鏈強度校核................................................7
3 減速機構的設計..................................................8
3.1 電機的選型....................................................8
3.2 傳動零件設計..................................................9
3.2.1 第一級傳動..................................................9
3.2.2 第二級傳動..................................................14
3.2.3 第三級傳動..................................................19
3.3 軸的計算......................................................24
3.3.1 高速軸......................................................24
3.3.2 中間軸......................................................28
3.3.3 中間軸......................................................32
3.3.4 輸出軸......................................................36
3.4 滾動軸承的選擇和計算..........................................40
3.5 鍵連接的計算..................................................43
3.6 減速器的潤滑和密封形式........................................45
3.7 減速器箱體、附件設計..........................................47
3.8 出廠檢驗與試驗................................................49
3.9 儲運、安裝、試動轉、維護......................................51
3.10 試運轉.......................................................52
3.11 使用維護.....................................................53
4 鏈輪的具體尺寸設計..............................................54
4.1 整體尺寸......................................................54
4.2 軸向齒廓及尺寸................................................55
5 鏈輪軸的設計與布置..............................................56
5.1 鏈條的豎直張緊與軸的設計......................................56
5.2 鏈輪的水平張緊與軸的設計......................................58
5.3 大門2的主動輪布置.............................................59
結論..............................................................61
參考文獻..........................................................62
翻譯部分
英文原文..........................................................64
中文譯文..........................................................69
致謝..............................................................73

摘   要
     倉庫大門主要是為了方便倉庫內的貸物進出，為了達到此目的。此次設計中大門為對開式，每扇門寬4米、高6米，重900千克。大門開閉驅動方式為電機驅動，而且兩扇門共用一個電機。電機帶動一個圓柱直齒三級減速器，在減速器的輸出軸上帶鏈輪，大門的伸縮桿卡在鏈條的卡口內，當鏈輪轉動時帶動鏈運動從而使大門與鏈同步運動。為了使兩個大門能實現同步開閉，在電機的輸出軸上還帶有一個齒輪，與另一扇門的鏈輪軸上同尺寸齒輪相嚙合，使另一扇門的鏈輪與電機直接驅動的鏈輪轉速相等而方向相反。門的開與閉由電機正反轉控制。當大門開到極限位置時，會將大門導軌上的行程開關觸點壓開電機停止轉動。整個機構中主要涉及的傳動方式為鏈傳動。由于每扇大門寬4米所以鏈傳中系統中兩個鏈輪的設計中心距為4.5米，為了防止中心距過大鏈產生下垂，采用增大中心距的辦法對鏈進行張緊。而鏈輪軸都采用懸臂梁式軸，一端伸在預埋在墻上的鋼板內，在軸表面車螺紋軸用螺母將其固定在鋼板上。

關鍵詞：鏈傳動、 鏈張緊、 三級減速

ABSTRACT

Warehouse door is to facilitate the storage of the loan-to-access, in order to achieve this objective. The design of the off-door, the door of each four meters wide, six meters high, weight 900 kg. Closed the door open for the drive motor drive, and two doors share a motor. A cylindrical motor driven three straight teeth reducer, the output shaft in reducer with sprocket, the expansion-card door to the chain of cards in the mouth, when the rotation when the sprocket chain driven movement so that the door chain synchronization with the movement. In order to achieve the two doors can be opened simultaneously closed, the output shaft in the motor also has a gear, and another door of the same size gear sprocket axis of engagement so that another door of the motor and direct drive sprocket Moving the sprocket and the same speed in opposite directions. The doors opened and closed by the positive and motor control. When the door opened to the limit position, the door will guide the trip switch contact pressure to stop a motor rotation. The main agencies involved in the transmission mode for the chain drive. Since each door four meters wide in the so-linked system of the two sprocket design center distance of 4.5 metres, in order to prevent the center from a drop too much linked with increased distance to the chain tension. The chain axle-shaft cantilever used, in the end stretch of embedded in the wall plate, in the shaft surface car nut threaded shaft with its fixation on the plate.

 Keywords：Chain drive、Chain tension、 Three reducer