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黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)
目 錄
摘要.........................................................................................................................Ⅰ
Abstract....................................................................................................................Ⅱ
第1章 緒論.........................................................................................................1
1.1 引言..........................................................................................................1
1.2 離合器研究現(xiàn)狀......................................................................................3
1.2.1 國(guó)外研究現(xiàn)狀...................................................................................3
1.2.2 國(guó)內(nèi)研究現(xiàn)狀...................................................................................4
1.3 本設(shè)計(jì)的目的和意義................................................................................5
1.4 本設(shè)計(jì)的主要內(nèi)容....................................................................................5
第2章 膜片彈簧離合器基本參數(shù)的選擇..............................................5
2.1 離合器的原理及應(yīng)滿足的要求................................................................5
2.2 壓緊彈簧的結(jié)構(gòu)型式及............................................................................6
2.2.1 周置彈簧離合器...............................................................................6
2.2.2 中央彈簧離合器...............................................................................7
2.2.3 斜置彈簧離合器...............................................................................7
2.2.4 膜片彈簧離合器...............................................................................7
2.3 基本結(jié)構(gòu)尺寸參數(shù)的選擇......................................................................8
2.3.1 摩擦片的設(shè)計(jì)...................................................................................8
2.3.2 后備系數(shù)β的確定...........................................................................8
2.3.3單位壓力P0的確定...........................................................................9
2.3.4摩擦因子f選擇.................................................................................9
2.4 摩擦片的優(yōu)化............................................................................................9
2.5 本章小結(jié)..........................................................................................10
第3章 從動(dòng)盤總成設(shè)計(jì)................................................................................11
3.1 從動(dòng)盤的組成型式及要求........................................................................11
3.2 從動(dòng)片設(shè)計(jì)................................................................................................11
3.3 從動(dòng)盤轂的設(shè)計(jì).......................................................................................11
3.4 花鍵強(qiáng)度校核...........................................................................................12
3.5 從動(dòng)盤摩擦材料選擇...............................................................................12
3.6 扭轉(zhuǎn)減震器的設(shè)計(jì)...................................................................................13
3.6.1 扭轉(zhuǎn)減震器的功能........................................................................13
3.6.2 扭轉(zhuǎn)減震器主要參數(shù)的選擇 .......................................................13
3.6.3 減震彈簧的計(jì)算............................................................................15
3.7 本章小結(jié)...................................................................................................16
第4章 膜片彈簧、壓盤和離合器蓋的設(shè)計(jì)...........................................17
4.1 膜片彈簧基本參數(shù)的選擇.......................................................................17
4.1.1 H/h 比值的選擇...............................................................................17
4.1.2 碟簧部分大端半徑R、內(nèi)半徑r及R/r 的比值確定.................17
4.1.3 彈簧起始圓錐底角的選擇........................................................17
4.1.4 膜片彈簧小端半徑r0 及分離軸承作用半徑rf選擇 ...................17
4.1.5 分離指數(shù)目n 切槽寬度窗口槽寬及半徑re選擇.................17
4.1.6壓盤加載點(diǎn)R1和支撐環(huán)加載點(diǎn)半徑r1選取..................................18
4.2 膜片彈簧的設(shè)計(jì)........................................................................................18
4.2.1繪制特性曲線.......................................................................18
4.3膜片彈簧工作點(diǎn)位置的選擇.....................................................................20
4.4 求離合器徹底分離時(shí)分離軸承作用的載荷F2.的計(jì)算..................................21
4.5 分離軸承的行程的計(jì)算........................................................................21
4.6 膜片彈簧的強(qiáng)度校核.................................................................................22
4.7 膜片彈簧的優(yōu)化.........................................................................................23
4.8 壓盤傳動(dòng)方案的選擇.................................................................................24
4.9 壓盤的材料選擇.........................................................................................24
4.10 壓盤幾何尺寸的確定...............................................................................24
4.11 離合器蓋的設(shè)計(jì).......................................................................................25
4.12 本章小結(jié)...................................................................................................26
第5章 離合器操縱機(jī)構(gòu)的設(shè)計(jì).......................................................................27
5.1 離合器操縱機(jī)構(gòu)的要求.............................................................................27
5.2 操縱機(jī)構(gòu)的設(shè)計(jì).........................................................................................27
5.2.1 操縱機(jī)構(gòu)的組成及優(yōu)點(diǎn)....................................................................27
5.2.2 踏板行程S的計(jì)算............................................................................27
5.3 踏板力的計(jì)算........................................................................................28
5.4 助力器缸直徑計(jì)算.....................................................................................28
5.5 分離軸承的選擇和校核.............................................................................29
5.6 本章小結(jié).....................................................................................................29
結(jié)論...........................................................................................................................30
參考文獻(xiàn)..................................................................................................................31
致謝.............................................................................................................................32
附錄A..........................................................................................................................33
附錄B..........................................................................................................................34