畢業(yè)設(shè)計 MG300700 WD型采煤機截割部的設(shè)計
論文說明書共66頁，字數(shù)總計：14663
畢業(yè)設(shè)計說明書.doc
目錄.doc
任務(wù)書03.doc
摘要.doc
A2-齒輪5.dwg
A1-搖臂箱體.dwg
A2-截四軸.dwg
目錄
1 概述．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．1
1.1采煤機的發(fā)展歷史．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．1
1.2我國采煤機30多年的發(fā)展進程．．．．．．．．．．．．．．．．．．．．．．．．．．2
1.3采煤機的發(fā)展趨勢．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．6
1.4采煤機的類型及主要組成．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．7
2 總體方案的確定．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．9
2.1 主要技術(shù)參數(shù)．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．9
2.2 搖臂結(jié)構(gòu)設(shè)計方案的確定．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．10
2.3 截割部電動機的選擇．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．10
2.4 傳動方案的確定．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．11
2.5 傳動系統(tǒng)的設(shè)計．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．13
2.6 齒輪設(shè)計與強度效核．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．15
2.7 軸的設(shè)計及強度效核．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．26
2.8 行星機構(gòu)的設(shè)計與計算．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．32
2.9 截割部軸承壽命的校核．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．54
2.10 截割部鍵及其花鍵強度校核．．．．．．．．．．．．．．．．．．．．．．．．．．．．55
3 采煤機的使用與維護．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．57
3.1 潤滑及注油．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．57
3.2 地面檢查與試運行．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．57
3.3 下井及井下組裝．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．58
3.4 采煤機的井下操作．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．59
3.5 機器的維護與檢修．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．61
4. 結(jié)論．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．63
5. 致謝．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．64
6. 參考文獻．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．65

摘要
本文介紹了采煤機的發(fā)展歷史、組成及工作原理，在分析煤炭工業(yè)及煤炭工業(yè)的行業(yè)背景的基礎(chǔ)上，展望了采煤機的發(fā)展趨勢，并針對采煤機的發(fā)展現(xiàn)狀，進行了 MG300/700-WD 型采煤機的截割部設(shè)計。
本文首先確定了設(shè)計方案和選擇了基本部件并開展了傳動系統(tǒng)的可靠性分析，MG300/700-WD型采煤機截割部主要是由一個減速箱和四級齒輪傳動組成，截割部電機放在搖臂內(nèi)橫向布置，電動機輸出的動力經(jīng)由三級直齒圓拄齒輪和行星輪系的傳動，最后驅(qū)動滾筒旋轉(zhuǎn)。并對所設(shè)計的齒輪和花鍵進行了公差分析，同時介紹了截割部的安裝、維護和故障處理。本采煤機截割部具有較高的可靠性和安全維修性。

關(guān)鍵詞：滾筒式采煤機； 截割部； 行星齒輪傳動

ABSTRACT
The design of MG300/700-WD Shearer’s cutting unit
This paper presents the development history, the composition and the principle of shearers in brief. On the foundation of analyzing the trade background of coal industry and mining equipment, look ahead the development of shearers, and according to the present development situation of shearers, we carried out the design of MG300/700-WD Shearer’s cutting unit.
This design firstly fixed on design scheme and selected basic components, and besides, developed the reliability analysis of transmission system. The design of MG300/700-WD Shearer’s cutting unit. It is made up of a gearbox and moderate breeze gear wheel transmission that the MG300/700-WD type mining machine cuts the cutting department, Cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, The power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, Urge the cylinder to rotate finally. And gears and involute splines’ tolerances of geometrical quantity were analyzed. At the same time, introduced the installation, maintenance and fault disposal of this cutting unit. The cutting unit of MG300/700-WD Shearer has reliability and installation maintainability.
Keywords: shearer; the cutting unit; planetary gear drive