文档介绍：本科学生毕业设计
黑龙江工程学院汽车低温实验室设计
院系名称: 汽车与交通工程学院
专业班级: 车辆工程08-1班
学生姓名:
指导教师:
职称: 高级实验师
黑龙江工程学院
二零一二年六月
The Graduation Design for Bachelor's Degree
Design of Heilongjiang Institute of Technology’s Automobile Low Temperature Laboratory
Candidate:Dou Dan
Specialty: Vehicle Engineering
Class: 08-1
Supervisor:Senior Experimentalist
Bao Yu
Heilongjiang Institute of Technology
2012-06·Harbin
摘要
本设计结合黑龙江工程学院现有的空间环境,设计汽车低温实验室。如今生活水平日益提升,汽车不仅仅是代步的工具,更增添其舒适性及可靠性。同时,随着试验技术的不断进步,汽车的试验方面也愈加广泛,适应性试验更是重中之重。哈尔滨的冬天时间长,而且平均气温较低,部分汽车会出现一些低温启动困难、除霜效果差等低温适应性问题。为了研究汽车使用的低温性能,结合现有的空间布置及设计汽车低温实验室。这样既满足学习研究,同时校企结合也可以使企业更具有竞争力。
通过初步估算的方法计算热负荷,通过热负荷的数值,选取适合的制冷系统。使制冷系统的功率满足其冷冻负荷的功率。将发动机、电涡流测功机、转鼓测试台等试验设备布置在低温试验室,同时绘制CAD图,为了清晰明了表示试验室内部安置情况,将其绘制成轴侧图,能方便直观的看到试验室内部及外围的布置情况。同时针对设计的零件绘制零件图及装配图。同时简单介绍低温试验项目及方法。完成低温试验室的基本设计。
关键字:汽车;低温;制冷;发动机台架;电涡流测功机;转鼓测试台;低温试验
ABSTRACT
This bine with Heilongjiang Academy of Engineering of existing space environment design, automobile low temperature laboratory. Now the standard of living rising, cars are more than just walking tool, increasing fort and reliability. At the same time, along with test technology continues to progress, automobile test and also more and more widely, adaptability test is the most important. Harbin in the winter time, and lower average temperature, part of the car will be some cold starting difficulty, defrosting effect is poor and low temperature adaptability problem. In order to study the vehicle using low temperature properties, combined with the existing space arrangement and design of automobile low temperature test chamber. This is not only to meet the learning research, while bination of universities and enterprises can also make the enterprise petitive.
Through the preliminary estimation method for the calculation of heat load, heat load by numerical, selection of suitable refrigeration system. The refrigeration system power to meet its freezing load power. The engine, eddy current dynamometer, drum tester and othe