汽车零部件碰撞试验用紧凑型牵引系统设计+CAD图纸

摘要汽车零部件碰撞试验用牵引系统采用电机牵引钢丝绳的方法，满足1.8t汽车进行正面碰撞试验的要求。牵引系统主要包括电机及驱动轮毂、张紧总成、测速轮总成、滑轮总成、回程轮总成、轨道、壁障平台、钢结构等零部件。本文的研究思路是根据试验室的设计要求，确定牵引系统的总体方案和整体布局，再对各部分的零部件进行详细设计，最后对重要零部件进行强度校核，确定最终的设计方案。该牵引系统由直流电机接通电源后带动两个驱动转毂转动，驱动转毂转动带动钢丝绳传动。钢丝绳经过导轮后改变运动方向，平行于导轨运动。牵引小车固定在钢丝绳上，另一端接试验车，牵引小车带动试验车在导轨上做直线加速运动，试验车达到碰撞速度后，与碰撞台发生碰撞。通过对设计零部件进行三维建模，验证牵引系统的可行性。结果表明，牵引系统的结构设计比较合理，设计能够满足在室内较短的距离进行车辆碰撞试验的要求。50229

毕业论文关键词：牵引系统；车辆碰撞；钢丝绳传动；碰撞试验

Abstract Concluding the Motor and drive hub, tensioner, speed wheel assembly, pulley assembly, return wheel assembly, track, barrier platforms, steel and other components, the traction system structure of the powertrain of vehicle crash testing laboratory meet the test requirements of frontal collision by 1.8 tons car with the method using motor traction rope. According to the design requirements,a designed idea and method of was proposed to determine the overall layout and the overall program of the traction system and define the final program after detailed design and check of parts of car. Two rotating drive rotor hub driven by DC motor after energizing drive rope movement. Towing dolly fixed on a wire drive the test car on the rail straight line acceleratively until obstacle crashed by the test car with a fixed speed. By Three-dimensional modeling,it verify the feasibility of the traction system. The results showed that the structural design of traction system is reasonable and it is able to meet the design requirements.

Keywords: wire rope; vehicle crash; Traction system;crash laboratory

第一章绪论 1

1.1 序言 1

1.2 国内外碰撞试验发展状况 1

1.3 本文研究的内容 2

第二章汽车碰撞试验用牵引系统的机械方案设计 3

2.1 牵引系统设计 3

2.2 总体布局 4

2.3 牵引系统的工作方式 5

第三章运动分析 6

3.1 加速阶段的运动分析 6

3.2 牵引系统力学分析 8

3.3 主要零部件选取 11

3.3.1 选用电机 11

3.3.2钢丝绳选型 12

3.3.3 绳槽设计 13

第四章牵引系统的具体方案设计 14

4.1 牵引系统设计 14

4.2 轨道设计 14

4.3 钢丝绳导轮设计 15

4.3.1 滑轮总装设计 15

4.3.2 回程轮总装设计 16

4.3.3 测速轮总装设计 18

4.4 固定壁障设计汽车零部件碰撞试验用紧凑型牵引系统设计+CAD图纸:http://www.youerw.com/jixie/lunwen_53499.html