液壓式可變配氣系統(tǒng)設(shè)計(jì)
液壓式可變配氣系統(tǒng)設(shè)計(jì),液壓式可變配氣系統(tǒng)設(shè)計(jì),液壓式,可變,系統(tǒng),設(shè)計(jì)
黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)
目 錄
摘要...................................................................................................................II
ABSTRACT.........................................................................................................................................III
第1章 緒論.......................................................................................................1
1.1發(fā)動(dòng)機(jī)配氣機(jī)構(gòu)的可變技術(shù)...................................................................................1
1.1.1可變進(jìn)氣系統(tǒng)........................................................................................................1
1.1.2可變配氣相位.................................................................................................2
1.1.3可變進(jìn)氣渦流強(qiáng)度.........................................................................................4
1.2發(fā)動(dòng)機(jī)氣門驅(qū)動(dòng)機(jī)構(gòu)的發(fā)展...................................................................................4
1.2.1凸輪軸氣門驅(qū)動(dòng)機(jī)構(gòu).....................................................................................4
1.2.2凸輪軸可變氣門驅(qū)動(dòng)機(jī)構(gòu).............................................................................5
1.2.3無凸輪軸驅(qū)動(dòng)配氣機(jī)構(gòu).................................................................................5
1.2.4電液驅(qū)動(dòng)配氣機(jī)構(gòu).........................................................................................6
1.2.5電磁氣門驅(qū)動(dòng)機(jī)構(gòu).........................................................................................7
1.2.6電氣氣門驅(qū)動(dòng)機(jī)構(gòu).........................................................................................8
1.2.7其他的氣門驅(qū)動(dòng)機(jī)構(gòu).....................................................................................8
1.3本課題的意義和主要工作內(nèi)容...............................................................................9
第2章 確定系統(tǒng)方案、擬定液壓原理圖...............................................................11
2.1電控液壓驅(qū)動(dòng)可變配氣系統(tǒng)的構(gòu)成.....................................................................11
2.2電控液壓驅(qū)動(dòng)可變配氣系統(tǒng)的工作原理............................................................12
2.3擬定液壓原理圖....................................................................................................12
2.4本章小結(jié)................................................................................................................13
第3章 液壓系統(tǒng)的設(shè)計(jì)計(jì)算......................................................................................14
3.1液壓系統(tǒng)額定壓力的選取....................................................................................14
3.2液壓系統(tǒng)額定流量的選取....................................................................................15
3.3液壓系統(tǒng)設(shè)計(jì)參數(shù)................................................................................................16
3.4液壓元件的選擇與計(jì)算........................................................................................17
3.4.1液壓泵的選擇.............................................................................................17
3.4.2選擇驅(qū)動(dòng)液壓泵的電動(dòng)機(jī).........................................................................18
3.4.3液壓閥的選擇.............................................................................................18
3.4.4油箱的選擇.................................................................................................19
3.4.5蓄能器的選取.............................................................................................19
3.4.6管道尺寸的確定.........................................................................................19
3.5本章小結(jié)................................................................................................................20
第4章 氣門驅(qū)動(dòng)機(jī)構(gòu)設(shè)計(jì)..........................................................................................21
4.1上端蓋的結(jié)構(gòu)設(shè)計(jì)................................................................................................22
4.2下底蓋得設(shè)計(jì)........................................................................................................22
4.3柱塞的結(jié)構(gòu)設(shè)計(jì)....................................................................................................23
4.4柱塞套筒的結(jié)構(gòu)設(shè)計(jì)............................................................................................23
4.5本章小結(jié)................................................................................................................24
第5章 溢流閥的結(jié)構(gòu)設(shè)計(jì)..........................................................................................25
5.1溢流閥的結(jié)構(gòu)和工作原理...................................................................................25
5.1.1直動(dòng)型溢流閥...........................................................................................25
5.1.2 先導(dǎo)式溢流閥..........................................................................................26
5.2溢流閥的主要性能...............................................................................................28
5.2.1靜態(tài)特性...................................................................................................28
5.2.2動(dòng)態(tài)特性...................................................................................................28
5.2.3先導(dǎo)型溢流閥的靜態(tài)特性分析...............................................................30
5.3溢流閥的基本應(yīng)用...............................................................................................33
5.4本章小結(jié)...............................................................................................................35
結(jié)論.......................................................................................................................................36
參考文獻(xiàn).............................................................................................................................37
致謝.......................................................................................................................................38
附錄.......................................................................................................................................39
附錄A:英文文獻(xiàn)........................................................................................................39
附錄B:中文文獻(xiàn).......................................................................................................................46
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編號(hào):21040845
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上傳時(shí)間:2021-04-22
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液壓式可變配氣系統(tǒng)設(shè)計(jì)
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