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(2007屆)
本科生畢業(yè)設(shè)計(jì)(論文)
YC1040載貨汽車底盤總體及制動(dòng)器的設(shè)計(jì)
學(xué) 院、系:
機(jī)械工程學(xué)院
專 業(yè):
機(jī)械設(shè)計(jì)制造及其自動(dòng)化
學(xué) 生 姓 名:
劉 夢(mèng) 華
班 級(jí):
機(jī)本0302
學(xué)號(hào) 26030213
指導(dǎo)教師姓名:
黃開(kāi)有
職稱 副教授
最終評(píng)定成績(jī):
2007年5月
湖南工業(yè)大學(xué)本科生畢業(yè)設(shè)計(jì)(論文)
湖南工業(yè)大學(xué)本科生畢業(yè)設(shè)計(jì)(論文)
YC1040載貨汽車底盤總體及制動(dòng)器設(shè)計(jì)
院 (系):機(jī)械工程學(xué)院
專 業(yè):機(jī)械設(shè)計(jì)制造及其自動(dòng)化
學(xué) 號(hào):26030213
學(xué)生姓名:劉 夢(mèng) 華
指導(dǎo)教師:黃 開(kāi) 有(副教授)
2007年5月
摘 要
底盤的總體設(shè)計(jì)是在參考其他相似車型和相關(guān)規(guī)定的基礎(chǔ)上,確定YC1040載貨汽車的結(jié)構(gòu)型式,包含汽車軸數(shù)的選擇,驅(qū)動(dòng)形式分析,布置形式的分析;主要尺寸和參數(shù)的選擇,有外廓尺寸、軸距、輪距、前懸、后懸、貨車的車頭長(zhǎng)度、車廂長(zhǎng)度等;汽車質(zhì)量參數(shù)的確定,包括整車整備質(zhì)量、裝載質(zhì)量、質(zhì)量系數(shù)、汽車總質(zhì)量、軸荷分配等;發(fā)動(dòng)機(jī)選擇依照需要的功率和相關(guān)國(guó)家排放標(biāo)準(zhǔn)選用了YD480。
制動(dòng)器設(shè)計(jì)的主要工作有:制動(dòng)器的結(jié)構(gòu)方案分析,對(duì)比各種形式結(jié)構(gòu)的優(yōu)缺點(diǎn)后,選用了領(lǐng)從蹄式的方案;制動(dòng)器主要參數(shù)的確定,先參考相關(guān)專業(yè)標(biāo)準(zhǔn)確定制動(dòng)鼓內(nèi)徑,然后根據(jù)制動(dòng)鼓內(nèi)徑就可以定下摩擦襯片寬度和包角、摩擦襯片起始角、制動(dòng)器中心到張開(kāi)力F作用線的距離、制動(dòng)蹄支承點(diǎn)位置坐標(biāo)。最后還需要關(guān)于制動(dòng)器的設(shè)計(jì)計(jì)算。
YC1040載貨汽車主要是面向農(nóng)村市場(chǎng)開(kāi)發(fā)的。隨著農(nóng)民收入的增加和農(nóng)村道路的改善,這種有針對(duì)性而設(shè)計(jì)的低速貨車會(huì)受到農(nóng)民朋友的青睞。
關(guān)鍵詞: YC1040貨車;制動(dòng)器;設(shè)計(jì);底盤
ABSTRACT
The main contents of the total design of bedrock is in the light of other relevant provisions of the model and basis on relevant provisions to identify YC1040 vehicle type that contain the pattern of the certain low speed lorry which includes the choice of the automobile stalk type, transmission, arrangement; main size and choice of the parameter, it has to be wide outside size, wheelbase, track, before hang, after hanging, locomotive length, carriage length, est. of truck. The quality parameters, including completed bus reorganize and outfit quality, load quality, quality coefficient, total quality of the bus, are determined in this paper etc. The engine of YD480 is for the use according to the power needed and relevant country's national discharge standards.
The brake is designed is as follows: the structural scheme of the brake analyzes. After comparing the advantages and disadvantages of various forms of structural, the type is selected. Then on the brake drum diameter can be identified rub, line slices of width with and make horn, line with slices of initial horn, brake in the center get open function distance, brake shoe bearing point position coordinate of line to F of strength. Some designs about the brake are calculated finally.
YC1040 cargo truck is mainly faced with rural .With the increase of peasant's income and improvement of rural road, such low-speed truck will be favored by peasant's friend.
Key words:YC1040 truck; Brake; Design; Chassis
目 錄
前 言 1
第1章 底盤總體設(shè)計(jì) 2
1.1 總體方案分析 2
1.1.1汽車的分類 2
1.1.1汽車的形式 2
1.2 汽車主要尺寸的確定 4
1.3 汽車質(zhì)量參數(shù)的確定 7
第2章 制動(dòng)器設(shè)計(jì) 9
2.1 制動(dòng)器結(jié)構(gòu)方案的分析 9
2.1.1 制動(dòng)器分析 9
2.1.2 鼓式制動(dòng)器 10
2.1.3 制動(dòng)器的間隙調(diào)整 11
2.2 制動(dòng)器主要參數(shù)的確定 11
2.3 制動(dòng)器的設(shè)計(jì)與計(jì)算 14
2.3.1 壓力沿襯片長(zhǎng)度方向的分布規(guī)律 14
2.3.2 計(jì)算蹄片上的制動(dòng)力矩 15
2.3.3 襯片磨損特性的計(jì)算 18
2.3.4 前后輪制動(dòng)器制動(dòng)力矩的確定 19
結(jié)論 21
參考文獻(xiàn) 22
致謝 23
附錄1 24
湖南工業(yè)大學(xué)本科生畢業(yè)設(shè)計(jì)(論文)