机械5

摘要 车轮摆差测量技术是测量技术中重要的一门学科。现代汽车工业对传动部件—车轮的摆动要求愈来愈高,车轮的摆差大小也是汽车平稳行驶的保证。 本设计将车轮侧向和径向的摆差作为一个整体来检测,把车毂边缘作为车轮在侧向和径向摆差测量的位置，利用光栅位移传感器来检测车轮侧向和径向的摆差。它包括三个部分：首先是车轮摆差试验机的传动机构，其次是被检测车轮的定位和夹紧机构，再则是车轮的检测机构（检测侧向和径向的摆差）。通过车轮摆差试验机，可以精确的检测车轮在径向和侧向摆差的程度和大小，从而验证所生产的产品是否符合实际的使用要求，是否能够达到用时最短和最低成本的检测。同时它可以用于各种轻型轿车、卡车等无内胎车轮在径向、侧向摆差进行精确的检测。本文详细的分析了车轮摆差试验机的结构设计和工作原理。 关键词：车轮摆差试验机结构设计工作原理 ABSTRACT Ru
n-out tolera
nce measureme
nt of thewheel o
n thevolume of tech
nologya
nd tech
nologyis a
n importa
nt measureme
nt of a subject.Tra
nsmissio
n compo
ne
nts of the moder
n automobile i
ndustrythe swi
ngwheel risi
ng ever higher,the size of thewheels is bad the car before traveli
ng to e
nsure a smooth. The desig
n of thewheel before the lateral a
nd radial deviatio
n to detect as awhole,the edge of the car as thewheel hub i
n place of lateral a
nd radial deviatio
n of the positio
n measureme
nt usi
ng grati
ng displaceme
nt se
nsor to detect a
nd track lateralwheel the pe
ndulum to the poor. It i
ncludes three parts: first,poor testi
ng machi
ne before thewheels of the tra
nsmissio
n mecha
nism,followed bydetectio
n of the positio
ni
ng a
nd clampi
ng thewheel body,is agai
n testi
ng orga
nizatio
nswheels(detectio
n of lateral a
nd radial deviatio
n of the pe
ndulum).Poor through the testi
ng machi
ne before thewheels ca
n accuratelydetect thewheels of the radial a
nd lateral deviatio
n of the pe
ndulum a
nd the size of the productio
n i
n order toverifywhether a product complieswith the actual use requireme
nts,whetherwe ca
n achievewhe
n the shortest a
nd lowest cost of test.At the same time,it ca
n be used i
n avarietyof light cars a
nd trucks i
n the radial tubelesswheels,side-faci
ng aspects of homody
ne detectio
n of the detectio
n accuracy.I
n this paper,a detailed a
nalysis of the differe
nce testi
ng machi
ne before thewheels of the structure a
ndworki
ng pri
nciple. Keywords: Ru
n-out Tolera
nce of the Wheels Testi
ng Machi
ne Mecha
nism Worki
ng Pri
nciple 目录 绪论2 第一章车轮摆差试验机结构总体设计5 1.1车轮摆差试验机的结构组成5 1.2车轮摆差试验机的工作原理5 1.3车轮摆差试验机各个结构的分析6 1.3.1检测结构6 1.3.2定位结构和夹紧结构6 1.3.3系统传动结构7 第二章车轮摆差试验机传动系统的设计8 2.1传动系统的作用、类型与组成8 2.1.1传动系统的作用8 2.1.2传动系统的类型8 2.1.3传动系统的组成9 2.2车轮摆差试验机传动方案的选择9 2.3电动机的选用11 2.3.1选择电动机类型11 2.3.2选择电动机的容量11 2.3.3确定电动机转速11 第三章车轮摆差试验机各结构的设计和校核12 3.1变速箱传动系统的设计12 3.2轴的结构设计和计算13 3.3蜗轮和蜗杆的计算与校核16 3.3.1.蜗杆传动的主要参数和几何尺寸16 3.3.2计算蜗轮和蜗杆的参数与几何尺寸17 3.3.3校核齿根弯曲疲劳强度18 3.3.4蜗杆传动的热平衡核算18 3.3.5蜗杆轴的设计19 3.3.6蜗轮轴的设计和计算21 结论23 参考文献24 致谢26