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摘要为满足汽车安全带固定点强度试验需要，研制了汽车安全带固定点强度试验台。根据汽车安全带固定点试验台法规及相关试验，该试验台采用UG三维制图、装配并以电液伺服系统为加载机构，具有9个通道，能实现单个缸或多个缸同步加载试验。每个通道能进行位置伺服控制和力伺服控制加载试验。着重论述了机械结构的设计、计算、校核以及液压系统的设计和性能验算，能够满足试验要求。并绘制了固定点试验台的装配图、零件图、液压原理图以及液压结构图。该试验台机械台架结构强度高，机械机构功能灵活，能针对不同车型自行调整工装位置，满足各种车型多种试验安装要求。由于现在汽车企业对于安全越来越重视，研究此试验台具有重大意义。43917
毕业论文关键词：安全带；固定点试验台；机械结构；液压原理
Abstract
In order to meet the fixed point of the car seat belt strength test, developed a test bed of fixed points of the automobile seat belt strength. UG three-dimensional mapping test bed and regulations according to a fixed point of the car seat belts and related test, the test bench, assembly and electro-hydraulic servo system for the loading mechanism, with nine channels, to achieve a single cylinder or multiple cylinder synchronous load test . Each channel can carry out the position servo control and force servo control of the load test. Focuses on the design of mechanical structure, calculation, checking and hydraulic system design and performance checking, to meet the test requirements. And draw a fixed-point test bed assembly drawing, parts diagrams, hydraulic schematics and hydraulic structure diagram. Machinery of the trial bench of the high structural strength, the mechanical system is flexible, can adjust for different models of the tooling location, and installation requirements to meet a variety of models with various tests. As the auto companies for more and more attention, research of this test bed is of great significance.
Keyword: safety belt ；fixed point test bench；mechanical structure ；hydraulic principle
目录
第一章 绪论 2
1.1 研究背景 2
1.2 研究目的及意义 2
1.3 研究主要内容 3
第二章 安全带固定试验台实验及相关法规 4
2.1 引言 4
2.2 安全带的实验 5
2.2.1 安全带固定点试验 5
2.2.2 织带性能试验 5
2.2.3 带扣锁性能试验 7
2.2.4 调节件的调节力试验 7
2.2.5 卷收器性能试验 7
2.2.6 卷收器耐久性试验 9
2.3 安全带总成性能试验 12
第三章 总体机械结构设计 15
1.1 概述 15
3.1.1机械装置总体设计的设计原则 15
3.1.2 安全带固定点试验台总体功能方案设计 15
3.2 基本组成 16
3.3 尺寸设计 16
3.3.1 试验台支架