采煤機截割部設計


摘要
本文描述了中煤層電牽引采煤機整機方案設計以及截割部的設計過程。
中煤層電牽引采煤機可用于煤層厚度為2-4m、煤質(zhì)中硬的緩傾斜煤層。與傳統(tǒng)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(nèi)，齒輪減速裝置全部集中在截割部殼體及行星減速器內(nèi)，取消了螺旋傘齒輪、固定減速箱、搖臂回轉(zhuǎn)套等結(jié)構，使其結(jié)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(zhuǎn)速可根據(jù)不同的煤質(zhì)硬度在兩檔速度內(nèi)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(lián)結(jié)，取消了安裝在滾筒上的截齒，使結(jié)構簡單、可靠。

關鍵詞：采煤機，截割部，結(jié)構，設計
 
Abstract
This brochure describes the type of hydraulic shearer traction unit program design and cutting the Department of Design and calculation process.
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
 
目錄
摘要 2
Abstract 3
目錄 4
第一章 國內(nèi)外采煤機研究及應用概況 5
1.1 國內(nèi)外研究現(xiàn)狀 5
1.2 國內(nèi)外應用狀況 7
第二章 傳動方案的設計 11
2.1總體傳動方案的設計 11
2.2傳動比分配 15
2.3截割部第一級圓柱齒輪傳動設計 16
2.4截割部第二級圓柱齒輪傳動設計 25
2.5截割部第一級行星傳動設計 33
2.6截割部第二級行星齒輪傳動設計 41
第三章 截割部輔助零部件的設計 50
3.1齒輪軸1的設計及校核 50
3.2第一級惰輪軸的設計及校核 52
3.3齒輪二軸的設計及校核 55
3.4第二級惰輪軸的設計及校核 59
3.5中心齒輪軸的設計及校核 62
3.6截割部花鍵連接強度校核 65
第四章 輔助零部件概述 69
4.1機身 69
4.2托纜裝置 70
4.3噴霧冷卻系統(tǒng) 70
4.4輔助液壓系統(tǒng) 72
4.5護板及拆卸工具 73
4.6螺旋滾筒 74
結(jié)論 75
參考文獻 76