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車(chē)輛與動(dòng)力工程學(xué)院畢業(yè)設(shè)計(jì)說(shuō)明書(shū)
實(shí)用微型客車(chē)設(shè)計(jì)—車(chē)架、制動(dòng)系設(shè)計(jì)
摘要
汽車(chē)制動(dòng)系是保證汽車(chē)及駕駛者生命安全的重要部分，制動(dòng)系是使行進(jìn)中的汽車(chē)減慢速度或者停止運(yùn)動(dòng)。
這次我的畢業(yè)設(shè)計(jì)題目是微型客車(chē)設(shè)計(jì)---車(chē)架和制動(dòng)系設(shè)計(jì)。在第二章我主要介紹了制動(dòng)系的概況和設(shè)計(jì)時(shí)應(yīng)滿足的基本要求。第三章主要是制動(dòng)系的類(lèi)型及最后確定的方案，其中列出了幾種可供選擇的類(lèi)型并進(jìn)行了分析、比較最后確定的方案如下：行車(chē)制動(dòng)器：前盤(pán)后鼓，盤(pán)式制動(dòng)器為通風(fēng)型浮動(dòng)鉗盤(pán)式制動(dòng)器，鼓式制動(dòng)器為領(lǐng)從蹄式制動(dòng)器。第四章主要介紹了制動(dòng)系主要結(jié)構(gòu)參數(shù)的選擇并進(jìn)行了簡(jiǎn)單的計(jì)算，是本設(shè)計(jì)說(shuō)明書(shū)的核心部分，其中包括鼓式和盤(pán)式制動(dòng)器主要結(jié)構(gòu)參數(shù)的選擇，例如：制動(dòng)鼓內(nèi)徑、摩擦襯片寬度和包角、摩擦襯片起始角、制動(dòng)盤(pán)直徑和厚度等，同時(shí)對(duì)制動(dòng)力和制動(dòng)力矩分配系數(shù)進(jìn)行了計(jì)算。第五章主要對(duì)駐車(chē)制動(dòng)和應(yīng)急制動(dòng)進(jìn)行了簡(jiǎn)單的計(jì)算。第六章介紹的是制動(dòng)器主要零件的結(jié)構(gòu)設(shè)計(jì)，如制動(dòng)鼓、制動(dòng)蹄、制動(dòng)底板和制動(dòng)輪缸等。第七章包括制動(dòng)驅(qū)動(dòng)機(jī)構(gòu)的選擇和計(jì)算，制動(dòng)管路的分路系統(tǒng)和液壓驅(qū)動(dòng)機(jī)構(gòu)的設(shè)計(jì)和計(jì)算。第八章列出了車(chē)架的幾種類(lèi)型，分析比較之后，最后確定選用前窄后寬的邊梁式車(chē)架，并且在這一章中對(duì)車(chē)架的彎曲強(qiáng)度進(jìn)行了計(jì)算，對(duì)車(chē)架的剛度進(jìn)行了校核。通過(guò)這一系列的分析、計(jì)算、校核等，這套設(shè)計(jì)方案是可行的。 THE DESIGN OF PRARECTICAL MINIATURE
CAR’S —THE DESIGN OF FRAME AND BRAKE SYSTEM
ABSTRACT
The brake system is an important part to keep safety for automobile, the purpose of the braking system is to slow down and stop the moving automobile.
My topic in this graduation design is the design of frame and the brake system.In second chapter we mainly introduced something about the brake system and some requests which the brake system should satisfied. The third chapter mainly introduced the type of the brake system and finally determined the plan, in this chapter we listed several kinds to choose, at last we determined the plan through analysis and compare with as follows: In traveling brake system, the former wheels are disc brake and the rear wheels are drum brake. The disc brake for ventilating fluctuation pliers disc brake, and the drum type brake for collar from foot brake. The fourth chapter mainly introduced the main design parameter’s choice and has carried on the simple computation, and this chapter is the most important part. Including drum type and disc brake main design parameter choice, For example: The brake drum inside diameter, the width, the angle and the outset angle, the diameter and thickness of the brake plate and so on, simultaneously have carried on the computation to the brake strength and the braking moment distribution coefficient. The fifth chapter mainly said the vehicle to brake on stopping and momentary through simple computation. The brake major parts structural design, like brake drum, brake shield plate or disc and brake wheel cylinder and so on were designed in the sixth chapter. Seventh chapter including applies the brake the driving mechanism choice and the computation, the brake line by-pass system and the hydraulic pressure driving mechanism design and the computation. Eighth chapter has listed the frame several kind of types, after the analysis comparison, after finally front determined selects the narrow width side beam plate frame, And has carried on the computation in this chapter to the frame bending strength, has carried on the examination to the frame rigidity. Through this a series of analysis, computation, examination and so on, this set of design proposal is feasible
KEY WORDS: brake system, drum brake, disk brake, frame
目 錄
第一章 前言…………………………………………………………......1
§1.1 汽車(chē)的誕生與世界汽車(chē)工業(yè)的發(fā)展……..…….……….…....1
§1.2 我國(guó)汽車(chē)工業(yè)的發(fā)展………….………….……………..…....2
第二章 制動(dòng)系概況………………………………………………..…....4
第三章 制動(dòng)系的結(jié)構(gòu)類(lèi)型及選擇………………………………..…....6
§3.1 后輪鼓式制動(dòng)器的選擇…………………………………........6
§3.2 前輪盤(pán)式制動(dòng)器的選擇…………………………………...….9
§3.3 盤(pán)式制動(dòng)器的優(yōu)缺點(diǎn)及確定的方案………………………..10
第四章 制動(dòng)系參數(shù)選擇及計(jì)算…………………………………........11
§4.1 制動(dòng)器主要結(jié)構(gòu)參數(shù)的選擇………………………….….....11
§4.2 制動(dòng)力與制動(dòng)力矩分配系數(shù)………………………………..14
第五章 駐車(chē)制動(dòng)和應(yīng)急制動(dòng)計(jì)算…………………………………....18
§5.1 駐車(chē)制動(dòng)計(jì)算………………………………………………..18
§5.2 應(yīng)急制動(dòng)計(jì)算…………………………………………..…....19
第六章 制動(dòng)器主要零件的結(jié)構(gòu)設(shè)計(jì)………………………………....20
第七章 制動(dòng)驅(qū)動(dòng)機(jī)構(gòu)的選擇及計(jì)算………………………………....22
第八章 車(chē)架…………………………………………………………....26
第九章 總結(jié)……………………………………………………….…...33
參考文獻(xiàn)………………………………………………………….….....34
致謝………………………………………………………………...…...35
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