轉(zhuǎn)向夾送輥設(shè)計說明書(已修改)
2025-06-23 09:19 本頁面
【正文】 1 摘 要 向夾送輥可分為平送斜出和斜送平出兩種類型。從基本工作原理出發(fā)建立了 斜送平出式轉(zhuǎn)向夾送輥的力學(xué)模型，利用彈塑性彎曲變形理論推導(dǎo)出上下夾送輥半徑比、偏移距、偏移角以及實際咬入角的定量計算公式，實例計算結(jié)果與國外進口設(shè)備吻合，為今后該類裝置的自主設(shè)計提供了有益的參考 。 關(guān)鍵詞 : 轉(zhuǎn)向夾送輥 偏移角 咬入角 彈塑性彎曲變形 2 ABSTRACT : Here are two types of steering withdrawal roll inproduction． Which are horizon entrance with declivity with draw and declivity entrance with horizon withdraw． In this paper． mechamical model was established on base of the basic principle of operation of steering withdrawal roll with declivity entrance and horizon withdraw ． In virtue of the elastic and plastic bending deformation theory quantified calculating formula wa8 deduced for radius ratio of up roll to down roll， deflection distance， deflection angle and practical nip ansle． The calculated result turned out according witll the practical evidence of device from overseas． and afford theory basis for designing the type of steering withdrawal roll with independence． The conclusion provide the theory instruction of the production． KEY WORDS : Steering withdrawal roll Deflection angle Nip angle Elastic and plastic bending deformation 3 目錄 1 緒論 .......................................................................................................................... 4 國內(nèi)外研究現(xiàn)狀 ........................................................................................... 4 一條先進的連續(xù)退火機組 ........................................................................... 4 2 對轉(zhuǎn)向夾送輥的工藝要求 ...................................................................................... 7 3 斜送平出式 轉(zhuǎn)向夾送輥中帶鋼的受力 .................................................................. 8 理想咬入狀態(tài)時的受力分析 ....................................................................... 8 起始咬入位置的受力分析 ........................................................................... 9 4 主要結(jié)構(gòu)參數(shù)的設(shè) 計 ............................................................................................ 10 下夾送輥半徑 2R 的設(shè)計 ............................................................................ 10 上下夾送輥半徑比 2k 的設(shè)計 .................................................................. 10 偏移角 ? 和咬入角 39。? 的設(shè)計 ...................................................................... 12 5 帶入給定數(shù)值 ........................................................................................................ 14 6 下輥的零部 件與校核 ............................................................................................ 16 軸的設(shè)計與校核 ......................................................................................... 16 軸承的選擇與校核 ..................................................................................... 18 7 焊接工藝 ................................................................................................................ 19 影響焊接接頭疲勞強度的因素 ................................................................. 19 焊縫型式與應(yīng)力集中的影響 .......................................................... 19 焊接殘余應(yīng)力的影響 ...................................................................... 20 焊接缺陷的影響 .............................................................................. 20 尺寸的影響 ...................................................................................... 20 對接圓筒環(huán)焊縫的縱向殘余應(yīng)力（切向應(yīng)力） ..................................... 21 橫向應(yīng)力 ....................................................................................................... 21 高焊接接頭疲勞強度的方法 ..................................................................... 23 降低應(yīng)力集中
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