BJ1041型載貨汽車設(shè)計(jì)（變速器總成設(shè)計(jì)）
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- BJ1041型載貨汽車設(shè)計(jì)（變速器總成設(shè)計(jì)）目 錄
第一章 前言 ······························································ 1
§1.1 手動(dòng)變速器（MT） ··············································1
§1.2 自動(dòng)變速器（AT） ··············································2
§1.3 自動(dòng)/手動(dòng)變速器（AMT） ·····································2
§1.4 無級(jí)變速器（CVT） ············································3
第二章 變速器的結(jié)構(gòu)分析與形式選擇 ······························ 4
§2.1 概述 ······························································ 4
§2.2 變速器的總體結(jié)構(gòu) ············································ 5
§2.3 變速器傳動(dòng)機(jī)構(gòu)布置方案分析 ······························ 6
§2.4 變速器零、部件的結(jié)構(gòu)分析與型式選擇 · ··············· 12
第三章 變速器主要參數(shù)的選擇 ····································· 17
§3.1 變速器的傳動(dòng)比 ·············································· 17
§3.1.1 擋數(shù) ······················································· 17
§3.1.2 輪胎半徑的選擇 ········································ 18
§3.1.3 主減速器傳動(dòng)比 ········································ 18
§3.1.4 分配各擋傳動(dòng)比 ········································ 19
§3.1.5 初定中心距 ·············································· 20
§3.1.6 變速器的外形尺寸 ····································· 21
§3.2 齒輪參數(shù) ······················································· 21
§3.2.1 齒輪模數(shù) ················································· 21
§3.2.2 壓力角及螺旋角 ········································ 22
§3.2.3 齒輪齒寬 ················································· 24
§3.2.4 齒頂高系數(shù) ·············································· 25
§3.3 各擋齒輪齒數(shù)的分配 ········································ 26
§3.3.1 確定一擋齒輪的齒數(shù) ·································· 26
§3.3.2 確定常嚙合傳動(dòng)齒輪副的齒數(shù) ······················ 26
§3.3.3 確定其他各擋的齒數(shù) ·································· 27
§3.3.4 確定倒擋齒輪齒數(shù) ····································· 27
第四章 變速器齒輪的設(shè)計(jì)計(jì)算 · ··································· 29
§4.1 齒輪的損壞形式 ·············································· 29
§4.2 齒輪的材料選擇 ·············································· 29
§4.3 輪齒強(qiáng)度計(jì)算 ················································· 30
§4.3.1 輪齒彎曲強(qiáng)度計(jì)算 ····································· 30
§4.3.2 輪齒接觸應(yīng)力計(jì)算 ····································· 35
第五章 變速器軸的設(shè)計(jì)計(jì)算 ········································ 37
§5.1 初選軸的直徑 ················································· 37
§5.2 軸的強(qiáng)度驗(yàn)算 ················································· 38
§5.2.1 軸的剛度驗(yàn)算 ················································· 38
§5.2.2 軸的強(qiáng)度驗(yàn)算 ··········································· 41
第六章 變速器軸承壽命計(jì)算 ········································ 45
§6.1 變速器軸承 ···················································· 45
§6.2 第二軸上的軸承壽命計(jì)算 ····································· 46
第七章 鍵的校核計(jì)算 ·················································· 49
§7.1 鍵的選擇 · ····················································· 49
§7.2 鍵的校核 ···························· ····························· 49
第八章 同步器設(shè)計(jì) ·· ················································· 50
§8.1 同步器主要零件材料的選擇 ······························· 50
§8.2 鎖環(huán)式同步器結(jié)構(gòu) ··········································· 51
§8.3 鎖環(huán)式同步器的工作原理 ·································· 51
§8.4 摩擦力矩的計(jì)算 · ············································ 52
§8.5 鎖環(huán)式同步器主要尺寸的確定 ···························· 52
§8.5.1 摩擦錐面上的螺紋槽 · ································ 52
§8.5.2 錐面半錐角 · ············································ 53
§8.5.3 摩擦錐面平均半徑 ····································· 53
§8.5.4 錐面工作長度 ··········································· 53
§8.5.5 鎖止角 ···················································· 54
第九章 變速器操縱機(jī)構(gòu) ··············································· 55
§9.1 操縱方式 · ····················································· 55
§9.2 鎖止裝置 · ····················································· 56
第十章 結(jié)論 ······························································ 60
參考文獻(xiàn) · ································································· 61
致 謝 ······································································· 62
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