中型货车车架设计

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1、摘 要本设计课题是关于中型载货汽车的车架设计。所设计的车架结构形式是前后等宽的边梁式车架，其中纵梁和横梁的截面形状都采用槽型，纵梁与横梁通过铆钉连接。本说明书涉及了现阶段载货汽车技术的发展趋势，以及国内外载货汽车车架的发展状况；说明书还详细阐明了中型载货汽车的方案论证：车架的设计要求、车架结构的确定、车架宽度的确定、车架纵梁形式的确定、车架横梁形式的确定、车架纵梁与横梁连接形式的确定、车架的受载分析以及车架的强度计算。在计算时把车架简化成为一个位于支座上的静定结构，然后，用材料力学的知识对本车架进行强度计算，并且在满足应力要求的条件下来确定车架纵梁的断面尺寸。关键词：中型货车、车架、设计 Ab

2、stractThis design issue is about the frame of medium-sized truck. The frame structure designed is the side frame with the beam width, in which the shape of longitudinal and cross-section beams are slot, rails and beams are connected by rivets .This paper involves in lately the technology development

3、 trend of truck as well as the domestic and foreign truck frame development; This paper also expose in detail the medium-sized truck with scheme demonstration :the requirement of frame design、determination of frame structure、determination of frame width 、determination of stringer form 、determination

4、 of beams form、the connection form of beams 、analysis of load the frame suffers and the strength calculation .The frame will be simplified as a stable objective when calculating, and then calculate the strength with mechanics materials knowledge and determine the size of the frame rails with the pre

5、condition that it meets the requirement of stress.Key words: medium-sized trucks, trailers, designII目 录第1章 绪论································

6、;·······················11.1 课题背景·························&#

7、183;····················11.2 国外货车技术的发展趋势· ·························

8、83;··11.3 车架的发展 ···········································2第2章 方案论证·&

9、#183;·················································4

10、 2.1 参考车型及其参数······································42.2 车架设计的技术要求·······

11、83;····························42.3 车架结构的确定 ···················&#