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摘 要
汽車已成為最主流的交通工具，它在現(xiàn)代社會中發(fā)揮出的作用是無與倫比的。高速公路的覆蓋率日益提高，汽車行駛速度的加快等等因素對汽車駕駛?cè)藛T及乘車人員的安全都會產(chǎn)生消極影響，同時(shí)也對汽車設(shè)計(jì)人員提出了更高的要求，尤其是對制動系的研究設(shè)計(jì)。
汽車制動系是整輛汽車中最為重要的系統(tǒng)之一。因?yàn)樗男阅苤苯佑绊懼{駛安全的重要問題。只有制動性能良好、制動系工作可靠的汽車才能充分發(fā)揮出其高速行駛的動力性能并保證行駛的安全性。
本次名為轎車制動系設(shè)計(jì)的課題目的在于通過深入了解學(xué)習(xí)當(dāng)前廣泛用于輕型轎車上的制動系統(tǒng)的基礎(chǔ)上分析并計(jì)算各類數(shù)據(jù)設(shè)計(jì)出制動效果顯著，工作可靠性高，成本合理的制動系統(tǒng)。盤式制動器是目前應(yīng)用最為廣泛的制動器結(jié)構(gòu)，無論是在它的制動性能和結(jié)構(gòu)緊湊度上都比傳統(tǒng)的鼓式制動器有不小的優(yōu)勢。
關(guān)鍵詞：汽車安全 制動系統(tǒng) 盤式制動器
Ⅰ
ABSTRACT
Car has been the mainstream traffic tools, the role played by cars is unique in the modern society. The factors such as Highway coverage is increasing day by day, the speed of cars is increasing and so on can produce negative influence on the driver and the safety of the driving, and at the same time, car designers is putted forward higher request, especially for study and design of brake system.
Car brake system is the one of the most important system in the whole car . Because it's performance directly affect on the safety of driving . Only the car with braking system which is good and reliable enough,it just can performance the high-speed dynamic driving and ensure the safety of the running.
The mission named designing brake system whose purpose is analysising of all kinds of data to design the brak system which has high work efficiency,reliability and economic cost thorough understanding and learning car brake system widely used in the current. Disc brake is the most widely used brake, it has more advantage than the traditional drum brake on braking performance and compact of structure.
Keywords: car safety brake system disc brake
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目 錄
摘要…………………………………………………………………………………I
ABSTRACT……………………………………………………………………………II
1 緒論………………………………………………………………………………1
2 制動系統(tǒng)與制動器………………………………………………………………2
2.1 制動系統(tǒng)分類……………………………………………………………2
2.1.1 按制動系統(tǒng)功用分類…………………………………………………2
2.1.2 按制動系統(tǒng)制動能源分類……………………………………………2
2.2 制動器分類………………………………………………………………2
2.2.1 鼓式制動器……………………………………………………………2
2.2.2 盤式制動器……………………………………………………………5
2.2.3 駐車制動器……………………………………………………………6
2.3 盤式制動器與鼓式制動器比較…………………………………………7
3 制動系統(tǒng)設(shè)計(jì)計(jì)算………………………………………………………………9
3.1 制動系統(tǒng)主要參數(shù)………………………………………………………9
3.1.1 汽車相關(guān)原始參數(shù)……………………………………………………9
3.1.2 同步附著系數(shù)的確定…………………………………………………9
3.1.3 制動時(shí)前后法向反力…………………………………………………10
3.2 制動器相關(guān)計(jì)算…………………………………………………………11
3.2.1 確定前后輪制動力矩分配系數(shù)………………………………………11
3.2.2 制動器制動力矩確定…………………………………………………11
3.2.3 盤式制動器主要參數(shù)確定……………………………………………13
3.2.4 制動盤所需的壓緊力…………………………………………………13
3.3 制動器主要部件的結(jié)構(gòu)設(shè)計(jì)……………………………………………13
4 液壓驅(qū)動機(jī)構(gòu)的形式選擇及設(shè)計(jì)計(jì)算…………………………………………15
4.1 液壓驅(qū)動機(jī)構(gòu)形式選擇…………………………………………………15
4.2 制動管路的多回路系統(tǒng)…………………………………………………16
4.3 制動輪缸直徑與工作容積計(jì)算…………………………………………18
4.4 制動主缸直徑與工作容積計(jì)算…………………………………………18
4.5 制動踏板力與踏板行程…………………………………………………19
4.5.1 制動踏板力……………………………………………………………19
4.5.2 制動踏板行程…………………………………………………………19
5 制動性能分析……………………………………………………………………21
5.1 制動減速度與制動距離…………………………………………………21
5.2 制動襯塊的磨損特性計(jì)算………………………………………………21
5.3 駐車制動計(jì)算……………………………………………………………22
結(jié)論…………………………………………………………………………………24
參考文獻(xiàn)……………………………………………………………………………25
致謝…………………………………………………………………………………26