冶金工程毕业论文专业：冶金工程目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc170135558"1.绪论PAGEREF_Toc170135558\h1HYPERLINK\l"_Toc170135559"1.1轧钢技术的国内外发展概况PAGEREF_Toc170135559\h1HYPERLINK\l"_Toc170135560"1.1.1钢材产量连续大幅度增长，品种结构调整取得初步成效PAGEREF_Toc170135560\h1HYPERLINK\l"_Toc170135561"1.1.2一批新轧机投产和技术改造，进一步提高了轧钢装备水平PAGEREF_Toc170135561\h2HYPERLINK\l"_Toc170135562"1.3实习厂的情况介绍PAGEREF_Toc170135562\h6HYPERLINK\l"_Toc170135563"2.方案设计PAGEREF_Toc170135563\h8HYPERLINK\l"_Toc170135564"3.设计计算PAGEREF_Toc170135564\h11HYPERLINK\l"_Toc170135565"3.1压下电机容量的选择PAGEREF_Toc170135565\h11HYPERLINK\l"_Toc170135566"3.1.1被平衡件重量计算PAGEREF_Toc170135566\h11HYPERLINK\l"_Toc170135567"3.1.2转动压下螺丝静力矩计算PAGEREF_Toc170135567\h11HYPERLINK\l"_Toc170135568"3.1.3压下电机容量的选择PAGEREF_Toc170135568\h13HYPERLINK\l"_Toc170135569"3.2压下装置传动机构设计PAGEREF_Toc170135569\h14HYPERLINK\l"_Toc170135570"3.2.1蜗杆传动的设计计算PAGEREF_Toc170135570\h14HYPERLINK\l"_Toc170135571"3.2.2蜗杆轴的强度计算（二级减速器蜗杆轴）PAGEREF_Toc170135571\h21HYPERLINK\l"_Toc170135572"3.2.3压下螺丝螺母的强度计算PAGEREF_Toc170135572\h26HYPERLINK\l"_Toc170135573"3.3机架的强度计算PAGEREF_Toc170135573\h28HYPERLINK\l"_Toc170135574"3.3.1机架的结构尺寸PAGEREF_Toc170135574\h28HYPERLINK\l"_Toc170135575"3.3.2受力及其力矩PAGEREF_Toc170135575\h29HYPERLINK\l"_Toc170135576"4.润滑方式的选择PAGEREF_Toc170135576\h33HYPERLINK\l"_Toc170135577"5.试车规程PAGEREF_Toc170135577\h34HYPERLINK\l"_Toc170135578"6.经济性与环保性分析PAGEREF_Toc170135578\h35HYPERLINK\l"_Toc170135579"6.1经济性分析PAGEREF_Toc170135579\h35HYPERLINK\l"_Toc170135580"6.1.1经济寿命的计算PAGEREF_Toc170135580\h35HYPERLINK\l"_Toc170135581"6.1.2经济设备大修期确定PAGEREF_Toc170135581\h37HYPERLINK\l"_Toc170135582"6.2环保性分析PAGEREF_Toc170135582\h39HYPERLINK\l"_Toc170135583"结论PAGEREF_Toc170135583\h40HYPERLINK\l"_Toc170135584"致谢PAGEREF_Toc170135584\h41HYPERLINK\l"_Toc170135585"参考文献