大采高采煤機(jī)截割部設(shè)計(jì)

摘要
煤是重要的能源物質(zhì)，在我國(guó)有著很大的儲(chǔ)量。采煤一直以來(lái)都被人們看作一項(xiàng)非常危險(xiǎn)的事情。采煤機(jī)作為采煤的主要工具是實(shí)現(xiàn)煤礦生產(chǎn)機(jī)械化和現(xiàn)代化的重要設(shè)備之一。機(jī)械化采煤可以減輕體力勞動(dòng)、提高安全性，達(dá)到高產(chǎn)量、高效率、低消耗的目的。它對(duì)提高煤的采掘效率有著重要的影響。因此國(guó)內(nèi)外采煤機(jī)的設(shè)計(jì)、改進(jìn)一直都在以較快的速度向前發(fā)展。
最早的滾筒采煤機(jī)出現(xiàn)在英國(guó)，它是把截煤機(jī)的減速箱部分改成允許安裝一根橫軸和截割滾筒。滾筒采煤機(jī)經(jīng)過(guò)多次改進(jìn)設(shè)計(jì)而得到不斷的發(fā)展。
本文描述了中煤層電牽引采煤機(jī)整機(jī)方案設(shè)計(jì)以及截割部的設(shè)計(jì)過(guò)程。所設(shè)計(jì)的電牽引采煤機(jī)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(jī)采煤機(jī)相比，該采煤機(jī)將截割電機(jī)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(gòu)，使其結(jié)構(gòu)更簡(jiǎn)單、緊湊，可靠性更高。
截割部是采煤機(jī)直接落煤、裝煤的部分，其消耗的功率約占整個(gè)采煤機(jī)功率的80%-90%，主要由截割部殼體、截割電機(jī)、齒輪減速裝置、滾筒等組成。該采煤機(jī)的截割部采用四級(jí)傳動(dòng)；前三級(jí)為直齒傳動(dòng)，第四級(jí)為行星傳動(dòng)。二級(jí)傳動(dòng)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(gè)惰輪軸，使采煤機(jī)能夠滿足截割高度對(duì)截割部長(zhǎng)度的要求。設(shè)計(jì)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(gòu)簡(jiǎn)單、可靠。

關(guān)鍵詞：采煤機(jī)，截割部，結(jié)構(gòu)，設(shè)計(jì)
 
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(guó)內(nèi)外采煤機(jī)研究及應(yīng)用概況 5
1.1 國(guó)內(nèi)外研究現(xiàn)狀 5
1.2 國(guó)內(nèi)外應(yīng)用狀況 7
第二章 傳動(dòng)方案的設(shè)計(jì) 11
2.1總體傳動(dòng)方案的設(shè)計(jì) 11
2.2傳動(dòng)比分配 15
2.3截割部第一級(jí)圓柱齒輪傳動(dòng)設(shè)計(jì) 16
2.4截割部第二級(jí)圓柱齒輪傳動(dòng)設(shè)計(jì) 25
2.5截割部第一級(jí)行星傳動(dòng)設(shè)計(jì) 33
2.6截割部第二級(jí)行星齒輪傳動(dòng)設(shè)計(jì) 41
第三章 截割部輔助零部件的設(shè)計(jì) 50
3.1齒輪軸1的設(shè)計(jì)及校核 50
3.2第一級(jí)惰輪軸的設(shè)計(jì)及校核 52
3.3齒輪二軸的設(shè)計(jì)及校核 55
3.4第二級(jí)惰輪軸的設(shè)計(jì)及校核 59
3.5中心齒輪軸的設(shè)計(jì)及校核 62
3.6截割部花鍵連接強(qiáng)度校核 65
第四章 輔助零部件概述 69
4.1機(jī)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(hù)板及拆卸工具 73
4.6螺旋滾筒 74
結(jié)論 75
參考文獻(xiàn) 76