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哈爾濱工業(yè)大學(xué)華德應(yīng)用技術(shù)學(xué)院畢業(yè)設(shè)計(jì)(論文)
摘要
當(dāng)今,隨著高速公路路網(wǎng)的不斷發(fā)展,汽車車速得提高以及車流密度的增大,對(duì)汽車制動(dòng)系統(tǒng)的工作可靠性要求日益重要,制動(dòng)器則是制動(dòng)系統(tǒng)的執(zhí)行機(jī)構(gòu),其性能好壞直接影響汽車的安全。因此如何開發(fā)出高性能的制動(dòng)系統(tǒng),為安全行駛提供保障是我們要解決的主要問題。此外,隨著汽車市場(chǎng)競(jìng)爭(zhēng)的加劇,如何縮短產(chǎn)品開發(fā)周期、提高設(shè)計(jì)效率,降低成本等,提高產(chǎn)品的市場(chǎng)競(jìng)爭(zhēng)力,已成為企業(yè)成功的關(guān)鍵。
本文主要根據(jù)已有的CA1041車輛的數(shù)據(jù)對(duì)制動(dòng)系統(tǒng)的前盤式制動(dòng)器及制動(dòng)管路進(jìn)行設(shè)計(jì)。首先介紹了汽車制動(dòng)系統(tǒng)的發(fā)展、結(jié)構(gòu)、分類,并通過對(duì)鼓式制動(dòng)器和盤式制動(dòng)器的結(jié)構(gòu)和優(yōu)缺點(diǎn)進(jìn)行分析。最終確定選用通風(fēng)浮動(dòng)盤式制動(dòng)器。除此之外,還介紹了前后制動(dòng)器、制動(dòng)主缸的設(shè)計(jì)計(jì)算,主要部件的參數(shù)選擇及制動(dòng)管路布置形式等的設(shè)計(jì)過程。
關(guān)鍵詞:盤式制動(dòng)器;制動(dòng)鉗;液壓;制動(dòng)管路
ABSTRACT
It is to carry on the transformation to design to originally design to the car rear wheel drum type brake, the transformation is Elysee car, repack its drum type brake into the a type of floating brake.
Nowadays, with the constant development of the highway network at a high speed, the car speed must be improved and the increase of the density of rate of traffic flow, the working dependability to car brakes is required increasingly importantly, the brake is the executive body of brakes, its quality of performance influences the security of the car directly. The a type brake is regarded as the substitute products of the drum type brake, of simple structure, quality little, hot stability fine, react sensitive, and apt to get rid of muddy water filth,etc. with the aid of centrifugal function of brake disc, it is convenient too to maintain.
This text introductory song expound records of type advantage of brake, introduce hydraulic pressure and atmospheric pressure records of type structure and operation principle of brake respectively. And to records of type brake brake disc designed, design to apply the brake pincers,etc., school and method have explained. And then and design the brake to make power and meet the demands in Institute of Computing Technology. Carried on the analysis of finite element to the brake disc finally.
Keyword: A type brake; Apply the brake to restrain; Make motive force
目 錄
摘要 ……………………………………………………………………………Ⅰ
ABSTRACT…………………………………………………………………………Ⅱ
第1章 緒論…………...........………………………………………………….1
1.1 制動(dòng)系統(tǒng)簡介…………………………………………………………..2
1.2 盤式制動(dòng)器優(yōu)點(diǎn)………………………………………………………..3
1.3 盤式制動(dòng)器發(fā)展歷史與趨勢(shì)…………………………………………..4
1.4 課題的意義及其必要性………………………………………………..4
1.5 課題研究的方法和內(nèi)容………………………………………………..4
第2章 盤式制動(dòng)器結(jié)構(gòu)特點(diǎn)…………………………………………………6
2.1 壓盤式制動(dòng)器的分類及結(jié)構(gòu)特點(diǎn)……………………………………..6
2.1.1浮動(dòng)鉗盤式制動(dòng)器…….…………………………………………...7
2.1.2固定鉗盤式制動(dòng)器……….………………………………………...8
2.1.3全盤式制動(dòng)器…………….………………………………………...8
2.2 主動(dòng)零部件的設(shè)計(jì)……………………………………………………..8
2.2.1制動(dòng)盤…………..…………………………………………………..8
2.2.2制動(dòng)鉗……………………………………………………………..10
2.2.3制動(dòng)塊……………………………………………………………..10
2.2.4摩擦材料…………………………………………………………..10
2.2.5制動(dòng)摩擦襯片……………………………………………………..12
2.2.6盤式制動(dòng)蹄片上的制動(dòng)力矩……......……………………………13
2.2.7摩擦襯片的磨損特性計(jì)算……..........……………………………15
2.2.8制動(dòng)器的熱容量和溫升的核算 ...….……………………………16
第3章 盤式制動(dòng)器布置……………………………………….……………16
3.1 制動(dòng)力匹配….………………………………………………………..16
3.1.1 汽車制動(dòng)時(shí)的受力及相關(guān)分析………………………………...16
3.1.2制動(dòng)力匹配實(shí)例…………………………………………………..21
3.1.3利用附著系數(shù)……………………………………………………..21
3.2 制動(dòng)管路的多回路系統(tǒng)…….………......……………………………26
總結(jié)…………………………………………………………………………… 29
致謝……….……………………………………………………………………30
參考文獻(xiàn)….……………………………………………………………………31
附錄1…….…………………………………………………………………….32
附錄2………………………….....................………………………………….36
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