MG300700-WD交流電牽引采煤機設計

機械論文編號:JX271 所有圖紙,任務書,外文翻譯。論文字數:31543.頁數:78
目    錄
1 .采煤機的發展概況 ..........................................................1
1.1 國際上的技術現狀和趨勢 ...................................................1
1.1.1 裝機功率有較大幅度增加 .................................................1
1.1.2 電牽引采煤機成為主導機型 ...............................................1
1.1.3 牽引速度和牽引力不斷增加 ...............................................1
1.1.4 采用多電動機驅動橫向布置的總體結構 .....................................2
1.1.5 滾筒的截深不斷增大..................................................... 2
1.1.6 普遍采用中高壓供電..................................................... 2
1.1.7 完善的監控系統..........................................................2
1.2 國內使用和研制情況....................................................... 2
1.2.1 雙級行星齒輪減速器的設計............................................... 2
1.2.2 牽引機構采用無鏈牽引系統............................................... 3
1.2.3 采用液壓緊固技術 .......................................................3
1.2.4 交流變頻調速牽引裝置的研制............................................. 3
1.2.5 電控技術的研究和電氣控制裝置的研制..................................... 3
1.2.6 截割部電動機使用彈性扭矩軸............................................. 3
1.2.7 為了提高塊煤率，采用耐磨滾筒及鎬形截齒................................. 4
2.對設計題目的分析........................................................... 4
2.1 設計思路的提出........................................................... 4
2.2 設計藍圖................................................................. 4
2.1.4 牽引行走部............................................................. 6
2.1.5 截割部、行走部電機的選用 ...............................................8
3 設計過程 ...................................................................9
3.1 整機功率的安排 ...........................................................9
3.2 搖臂減速器傳動比的安排................................................... 9
3.3 搖臂減速箱的具體結構..................................................... 9
3.3.1 殼體................................................................... 9
3.3.2 一軸................................................................... 9
3.3.3 第一級減速惰輪組....................................................... 9
3.3.4 二軸................................................................... 9
3.3.5 第二級減速惰輪 .........................................................9
3.3.6 中心齒輪組............................................................. 9
3.3.7 第一級行星減速器 .......................................................9
3.3.8 第二級行星減速器 .......................................................10
3.3.9 中心水路............................................................... 10
3.3.10 離合器................................................................ 10
3.4各軸的轉速 ................................................................10
3.5 各軸的功率 ...............................................................10
3.6 截割部齒輪的設計計算..................................................... 10
3.6.1 第一級減速圓柱直齒輪的設計計算 .........................................10
3.6.2 第二級減速圓柱直齒輪的設計計算......................................... 18
3.6.3 第一級行星減速器的設計計算 .............................................26
3.6.4 第二級行星減速器的設計計算............................................. 33
3.7 截割部軸的設計及校核以及軸承的選用和校核................................. 41
3.7.1 齒輪軸1 ................................................................41
3.7.2 第一級惰輪軸 ...........................................................43
3.7.3 二軸齒輪............................................................... 46
3.7.4 第二級惰輪軸........................................................... 49
3.7.5 第三級惰輪軸（與第二級惰輪軸相同） .....................................52
3.7.6 中心齒輪軸 .............................................................52
3.8截割部花鍵連接強度校核 ....................................................55
3.8.1 電動機輸出軸與齒輪嚙合處的花鍵 .........................................55
3.8.2 二軸處與齒輪嚙合的花鍵..................................................56
3.8.3 中心輪與太陽輪嚙合處的花鍵............................................. 56
3.8.4第一級行星減速器機架與第二級行星減速器太陽輪嚙合處的花鍵 ................57
3.8.5 方法蘭與第二級行星減速器機架嚙合處的花鍵............................... 57
4 輔助部件................................................................... 58
4.1 機身連接 .................................................................58
4.2 托纜裝置................................................................. 59
4.3 噴霧冷卻系統............................................................. 59
4.3.1 噴霧冷卻系統的作用...................................................： 59
4.3.2 噴霧冷卻系統組成： .....................................................59
4.3.3 噴霧冷卻系統：......................................................... 59
4.4、輔助液壓系統 ............................................................60
4.4.1 輔助液壓系統的作用及組成............................................... 60
4.4.2 輔助液壓系統的組成..................................................... 61
4.5、護板及拆卸工具.......................................................... 61
4.5.1 組成 ...................................................................61
4.5.2 作用及工具............................................................. 61
4.6. 螺旋滾筒 ................................................................61
專題論述重載齒輪變位系數的選擇：............................................. 62
變位齒輪的產生............................................................... 62
變位齒輪的優點............................................................... 63
變位系數的選擇.......................................................... .....63
結論........................................................................ 64
參考文獻：................................................................... 65
英文原文 .....................................................................70
致   謝 ......................................................................76

摘   要
     本說明書描述了MG300/700-W型電牽引采煤機整機方案設計以及截割部的設計和計算過程。
MG300/700-WD型液壓牽引采煤機可用于煤層厚度為2-4m、煤質中硬的緩傾斜煤層。與傳統的縱向布置的單電機采煤機相比，該采煤機將截割電機直接安裝在截割部殼體內，齒輪減速裝置全部集中在截割部殼體及行星減速器內，取消了螺旋傘齒輪、固定減速箱、搖臂回轉套等結構，使其結構更簡單、緊湊，可靠性更高。
截割部是采煤機直接落煤、裝煤的部分，其消耗的功率約占整個采煤機功率的80%-90%，主要由截割部殼體、截割電機、齒輪減速裝置、滾筒等組成。該采煤機的截割部采用四級傳動；前三級為直齒傳動，第四級為行星傳動。二級傳動的圓柱齒輪為可換齒輪，使輸出轉速可根據不同的煤質硬度在兩檔速度內選取。截割部采用了三個惰輪軸，使采煤機能夠滿足截割高度對截割部長度的要求。設計將截割部行星減速器和滾筒直接聯結，取消了安裝在滾筒上的截齒，使結構簡單、可靠。

關鍵詞：采煤機，截割部，結構，設計

Abstract
This brochure describes the type of hydraulic MG300/700-W shearer traction unit program design and cutting the Department of Design and calculation process.
MG300/700-WD traction Shearer hydraulic seam thickness can be used for 2-4 m, Hard coal to the gently inclined seam. With the traditional vertical layout of the single-motor compared to Shearer, Shearer will be the ranging-arm installed directly in the cutting of the shell, gear device exclusively on cutting Shell and planetary reducer, the abolition of the spiral bevel gears, gear box fixed, Rocker rotating sets of structures, their structure is simpler, more compact and higher reliability.
Ranging-arm of the shearer is directly charged coal, the coal loaded, its about the power consumption of the entire power shearer 80% -90%, mainly by cutting Shell, cutting electrical, Gear and drum components. The shearer cutting unit used four drive; Before three straight tooth drive, the fourth level of planetary transmission. 2 Drive Gear to be for the gears, enabling the output speed can be based on different coal hardness in two tranches within the selected speed. Cutting the Department has adopted a three lazy axle, to meet the shearer cutting height on the ranging-arm degree requirements. Designed to be cutting planetary reducer and drum direct link, canceled installed in the drum Pick, simple and reliable.

Keywords: shearer, ranging-arm,structure,design