目录 家用轿车汽车安全带结构设计- 1 - 摘要- 1 - Structural Desig
n of Household Car Seat Belt - 2 - Abstract - 2 - 第一章绪论- 4 - 1.1安全带设计的意义和目的- 4 - 1.2安全带的发展趋势及现状- 5 - 1.3课题主要设计的内容- 8 - 第二章安全带的工作原理- 10 - 2.1安全带的组成结构- 10 - 2.2安全带的工作原理- 10 - 第三章安全带的结构设计- 12 - 3.1固定结构的整体设计- 12 - 3.1.1锁扣的组成结构- 12 - 3.1.2锁扣整体要求- 12 - 3.1.3锁扣的设计内容- 12 - 3.1.4各可动零部件的运动范围- 14 - 3.1.5各零部件材料的选择- 14 - 3.2卷收器的设计- 16 - 3.2.1安全带卷收器的组成- 16 - 3.2.2安全带卷收器的工作原理- 17 - 3.2.3卷收力的设计检测- 18 - 3.2.4卷收器的设计优势- 18 - 3.3织带的选择与设计- 19 - 3.3.1织带保护效率的确定- 19 - 3.3.2织带的设计特点- 20 - 3.3.3织带的设计要求- 21 - 3.4安全带预警装置- 21 - 3.5安全带的总体结构三维- 22 - 第四章安全带的结构及安装位置的设计- 24 - 4.1卷收器芯轴设计计算- 24 - 4.2卷收器弹簧的计算及选用- 25 - 4.3卷收器安装位置的强度计算校核- 27 - 总结- 29 - 参考文献- 30 - 致谢- 32 - 家用轿车汽车安全带结构设计 摘要 驾驶汽车的安全性能是驾驶员和乘员在使用轿车过程中首要考虑的问题，汽车的驾驶安全已成为了汽车最重要的性能之一。所以在轿车汽车的安全带的使用上，是我们驾驶汽车在启动前必须使用的关键部件之一。安全带的重要性能够在驾驶和乘坐的过程中给人员带来重要的“安全性”。因此安全带的重要作用是体现轿车性能的重要指标之一，也是轿车汽车必不可少的关键性配件。 轿车汽车的安全带主要的组成部分有织带、卷收器、安全锁扣、锁止机构和三点时式结构上的固定装置组成。在本次的设计中，通过查阅相关的设计资料和文献，了解相关安全带设计上的结构特点和工作原理，设计出轿车安全带的结构形式及布局样式，通过三维软件及二维软件对安全带进行结构绘制。计算处安全带卷收器的具体强度及选择设计，对设计进行分析，了解汽车的发展史及其安全带结构特点，设计的安全带满足人体使用上的舒适性和确保人员使用上的安全性。在设计过程中主要对安全带的卷收器进行详细的设计和分析，了解卷收器的关键组成零件及内部结构形式。了解安全锁扣的工作原理及安全锁扣在使用上的参数设计计算，在防止开脱的结构紧固装置中，安全带锁扣起到的重要作用，以及锁扣在性能上的要求。在设计后，进行安全带锁扣的计算中，得到按压开锁的扭转力的大小，满足国家标准在安全带设计制造上的要求。整体工作通过三维设计、二维结构绘制、说明书的撰写等工作展开，完成本次课题设计的意义及达到设计的目的。 关键词：锁扣、织带、轿车、卷收器、三点式。 Structural Desig
n of Household Car Seat Belt Abstract The safety performa
nce of drivi
ng a car is the primary co
nsideratio
n for both drivers a
nd passe
ngers duri
ng the use of the car, a
nd drivi
ng safety has become o
ne of the most importa
nt performa
nce aspects of a car. Therefore, the use of seat belts i
n seda
ns is o
ne of the key compo
ne
nts that we must use before starti
ng the car. The importa
nce of seat belts ca
n bri
ng importa
nt "safety" to perso
n
nel duri
ng drivi
ng a
nd ridi
ng. Therefore, the importa
nt role of seat belts is o
ne of the importa
nt i
ndicators reflecti
ng the performa
nce of seda
ns, a
nd it is also a
n esse
ntial key accessory for seda
ns. The mai
n compo
ne
nts of a car's seat belt i
nclude a webbi
ng, a retracter, a safety buckle, a locki
ng mecha
nism, a
nd a fixi
ng device o
n a three-poi
nt timi
ng structure. I
n this desig
n, by co
nsulti
ng releva
nt desig
n materials a
nd literature, u
ndersta
ndi
ng the structural characteristics a
nd worki
ng pri
nciples of releva
nt seat belt desig
ns, desig
ni
ng the structural form a
nd layout style of seda
n seat belts, a
nd drawi
ng the structure of seat belts usi
ng 3D a
nd 2D software. Calculate the specific stre
ngth a
nd selectio
n desig
n of the seat belt retracter, a
nalyze the desig
n, u
ndersta
nd the developme
nt history of automobiles a
nd the structural characteristics of seat belts, a
nd e
nsure that the desig
ned seat belts meet the comfort of huma
n use a
nd e
nsure the safety of perso
n
nel. I
n the desig
n process, the mai
n focus is o
n providi
ng detailed desig
n a
nd a
nalysis of the seatbelt retracter, u
ndersta
ndi
ng its key compo
ne
nts a
nd i
nter
nal structural form. U
ndersta
nd the worki
ng pri
nciple of safety buckles a
nd the parameter desig
n calculatio
n of safety buckles i
n use, the importa
nt role of safety belt buckles i
n preve
nti
ng detachme
nt i
n structural faste
ni
ng devices, a
nd the performa
nce requireme
nts of buckles. After desig
n, i
n the calculatio
n of the seat belt buckle, the mag
nitude of the twisti
ng force for pressi
ng a
nd u
nlocki
ng the lock is obtai
ned, which meets the requireme
nts of
natio
nal sta
ndards for seat belt desig
n a
nd ma
nufacturi
ng. The overall work is carried out through three-dime
nsio
nal desig
n, two-dime
nsio
nal structure drawi
ng, a
nd ma
nual writi
ng, to achieve the sig
nifica
nce a
nd purpose of the project desig
n. Keywords: buckle, webbi
ng, seda
n, retracter, three-poi
nt 第一章绪论 1.1安全带设计的意义和目的 安全带是一种保持驾驶机动车过程中安全性能的一个重要的部件，已经在现代化建设中发展成为不可缺少的一部分。安全带在使用过程中，作为汽车在发生事故及出现急刹等情况下，能