MG200475-W型采煤機設計

機械論文編號:JX317  所有圖紙,外文翻譯。論文字數:12814.頁數:72
目錄
目錄.................................................................. 1
第1章緒論...........................................................  4
1.1引言 .............................................................. 4
1.2采煤機械概述 ...................................................... 4
1.2.1采煤機械化的發展................................................. 4
1.2.2機械化采煤的類型................................................  5
1.3采煤機簡述........................................................  6
1.31采煤機的分類、組成和工作原理 ..................................... 6
1.32滾筒采煤機的工作原理 ............................................. 7
1.33滾筒采煤機的特點.................................................  8
1.34煤機與刨煤機的比較 ............................................... 8
第2章  MG200/475－W型采煤機 .......................................... 10
2.1概述 ...............................................................10
2.2主要用途及適用范圍 ................................................ 10
2.3型號的組成及其代表的含義..........................................  10
2.4 使用環境條件 ..................................................... 11
2.5安全警示..........................................................  11
第3章  MG200/475－W型采煤機截割部的設計..............................  12
3.1 截割部傳動總體方案 ............................................... 12
3.1.1 設計總則.......................................................  12
3.1.2 已知條件.......................................................  12
3.1.3 截割電動機的選擇 ............................................... 12
3.1.4 計算傳動效率 ................................................... 13
3.1.5 傳動比的分配及配齒情況 ......................................... 13
3.2 截割部傳動系統齒輪的校核計算...................................... 14
3.2.1  Z1與Z2嚙合參數及強度計算 .......................................14
3.2.2  Z2與Z3嚙合參數及強度計算 .......................................19
3.2.3  Z4與Z5嚙合參數及強度計算....................................... 23
3.2.4 Z6與Z7嚙合參數及強度計算 ........................................28
3.2.5 Z8與Z9嚙合參數及強度計算........................................ 33
3.2.6行星傳動齒輪參數及強度計算....................................... 38
3.3 截割部傳動系統各傳動軸、軸承的校核計算 ............................50
3.3.1截一軸軸、軸承的校核計算 .........................................50
3.3.2惰一軸軸、軸承的校核計算 .........................................52
3.3.3截二軸軸、軸承的校核計算 .........................................55
3.3.4 截三軸軸、軸承的校核計算 ........................................57
3.3.5 惰二軸軸、軸承的校核計算 ........................................60
3..3.6 惰三軸軸、軸承的校核計算....................................... 63
3.3.7  截四軸軸、軸承的校核計算....................................... 63
3.3.8太陽輪軸軸、軸承的校核計算 .......................................65
3.3.9行星輪軸軸、軸承的校核計算 .......................................66
3.4各軸花鍵的設計與校核 ...............................................67
3.4.1截一軸花鍵設計計算 ...............................................67
3.4.2 截二軸花鍵設計計算 ..............................................68
3.4.3 截三軸花鍵設計計算 ..............................................69
3.4.4截四軸花鍵設計計算 ...............................................70
3.4.5輸出軸花鍵設計計算 ...............................................71
總結.................................................................  73
參考文獻 ............................................................. 74

摘   要
     本說明書描述了MG200/475-W型液壓牽引采煤機整機方案設計以及截割部的設計和計算過程。
MG200/475-W型液壓牽引采煤機可用于煤層厚度為1.3-2.5m、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 MG200/475-W shearer traction unit program design and cutting the Department of Design and calculation process.
MG200/475-W traction Shearer hydraulic seam thickness can be used for a .3-2.5 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