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山西大同大學(xué)工學(xué)院2009屆畢業(yè)設(shè)計論文
摘要 II
Abstract III
第一章 緒論 1
1.1本課題研究意義 1
1.2 國內(nèi)電牽引采煤機(jī)的技術(shù)特點及發(fā)展趨勢 2
1.2.1 采煤機(jī)的技術(shù)特點 2
1.2.2 采煤機(jī)的發(fā)展趨勢 3
1.3 總體方案的確定 4
1.3.1 采煤機(jī)類型 4
1.3.2 采煤機(jī)的組成 4
1.4截割部結(jié)構(gòu)及技術(shù)特征 6
1.4.1截割部傳動方式確定 6
1.4.2 電動機(jī)的選擇 8
第二章 傳動參數(shù)的確定 9
2.1總傳動比的計算 9
2.2傳動比的分配 9
2.3確定各軸的轉(zhuǎn)速n、功率P、轉(zhuǎn)矩T 10
第三章 齒輪嚙合參數(shù)及強(qiáng)度計 11
3.1齒輪的初步設(shè)計及強(qiáng)度校核 11
3.1.1第一級減速齒輪傳動設(shè)計計算及強(qiáng)度校核 12
3.1.2 第二級減速齒輪傳動設(shè)計計算及強(qiáng)度校核 15
3.1.3 三級減速齒輪傳動設(shè)計及計算 19
3.1.4 一級減速中惰輪軸的齒輪設(shè)計計算及校核 22
3.1.5 三級減速中惰輪軸的齒輪設(shè)計計算及校核 24
3.2 行星減速機(jī)構(gòu)的齒輪設(shè)計計算及校核 26
第四章 軸及軸承的設(shè)計 31
4.1軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 31
4.1.1 Ⅰ軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 31
4.1.2 Ⅱ軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 36
4.1.3 Ⅲ軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 41
4.1.4 Ⅳ軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 47
4.1.5 Ⅴ軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 53
4.1.6 Ⅵ軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 57
4.1.7 大齒輪軸的結(jié)構(gòu)設(shè)計及其強(qiáng)度校核 58
4.2 軸承的選用及其校核 64
4.2.1 Ⅰ軸上軸承的選用及其校核 65
4.2.2 Ⅱ軸上軸承的選用及其校核 66
4.2.3 Ⅲ軸上軸承的選用及其校核 66
4.2.4 Ⅳ軸上軸承的選用及其校核 67
4.2.5 Ⅴ軸上軸承的選用及其校核 68
4.2.6 Ⅵ軸上軸承的選用及其校核 69
第五章 截割部的潤滑及密封 69
結(jié) 論 72
參考文獻(xiàn) 73
摘要
MG400/940-WD型采煤機(jī)是一種電牽引大功率采煤機(jī)，該機(jī)機(jī)身矮，裝機(jī)功率大，所有電機(jī)橫向布置，機(jī)械傳動都是直齒傳動，電機(jī)、行走箱驅(qū)動輪組件等均可從老塘側(cè)抽出，故傳動效率高，容易安裝和維護(hù)。
本說明書主要介紹了采煤機(jī)截割部的設(shè)計計算。MG400/940-WD 型采煤機(jī)截割部主要是由四級齒輪傳動組成，截割部電機(jī)放在搖臂內(nèi)橫向布置，電動機(jī)輸出的動力經(jīng)由三級直齒圓柱齒輪和一級行星輪系的傳動，最后驅(qū)動滾筒旋轉(zhuǎn)。截割部采用四行星單浮動結(jié)構(gòu)，減小了結(jié)構(gòu)尺寸，采用大角度彎搖臂設(shè)計，加大了過煤空間，提高了裝煤效果。
在設(shè)計過程中，對截割部的軸、傳動齒輪、軸承和聯(lián)接用的花鍵等部件進(jìn)行了設(shè)計計算、強(qiáng)度校核和選用。本說明書主要針對主要部件的設(shè)計計算和強(qiáng)度校核進(jìn)行了敘述和介紹。
此外，還對MG400/940-WD采煤機(jī)的使用與維護(hù)進(jìn)行了說明，以便能更好的發(fā)揮該采煤機(jī)的性能，達(dá)到最佳工作效果。
關(guān)鍵詞：采煤機(jī)；截割部；行星輪系；齒輪傳動設(shè)計
Abstract
The MG400/940-WD type mining machine is that a kind of electricity draws the high-power mining machine, this machine fuselage is low, Installation is large in power, all electrical machineries are fixed up horizontally, mechanical drive is all the transmission of straight tooth, electrical machinery, walk case drive wheel package etc. can take from old pool side out, so the transmission is high in efficiency, easy to install and safeguard.
Calculate in design which cuts the cutting department of main introduction mining machine of this manual. It is made up of a moderate breeze gear wheel transmission that the MG400/940-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. Cut the cutting department and adopt the floating structure of four planetary forms, have reduced the physical dimension, adopt the large angle to curve the rocker arm to design, have strengthened the space of coal, have improved the coal result of putting.
In the course of designing, to cutting the axle of the cutting department, gear wheel of the transmission, parts such as the bearing and spline linking using, etc have designed to calculate, the intensity is checked and selected for use. This manual mainly designs for main part one calculating to check with the intensity have narrated and introduced.
In addition，returning use for MG400/940-WD mining machine and maintenance proves, In order to be able to good full play performance of person who should mine, reach the best working result.
Keyword: Mining machine ；the cutting department ； A department of planet ；Gear wheel of the transmission Design
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