乘用车雨刮器结构设计.doc

乘用车雨刮器结构设计
摘要
雨刮器作为现代汽车上不可或缺的一部分,虽然结构小,但在汽车安全驾驶方面却起着及其重要的作用。雨刮器的主要功能主要是将前后挡风玻璃上的雨水、污泥刮刷干净,擦亮汽车的挡风玻璃,使乘用车司机获得的视野更加清晰,保障司机安全行驶,所以驾驶员的驾驶安全性与雨刮器的挂刷效果好坏有着直接的联系。为此,国标中对汽车雨刮器的工作性能制定了严格的标准,本文的工作正是基于此,对雨刮器的结构进行了设计。
首先,通过分析和计算确定A、B区域。然后分析雨刮器机械原理,通过计算确定雨刮器的布置和杆长的参数,对雨刮器进行参数的确定以及雨刮器输出轴位置的确定。最后调整雨刮结构和位置使得雨刮器的刮刷面积尽可能的大,通过改变结构使雨刮的刮刷效果得到改善。此次设计要求对乘用车的雨刮器的零部件的尺寸进行设计,确定雨刮器结构的尺寸和参数。再利用catia建立雨刮器的三维模型及其仿真运动,观察仿真运动,根据需要绘制结果图像,运用仿真结果,分析雨刮器的运动曲线。最后根据仿真运动中的不足进行优化设计,争取增加雨刮器的挂刷区域,为生产实际提供理论参考,力使消除死角,增加干净度,让司机不用为在恶劣天气情况下看不清前方的情况而产生烦恼,降低因雨刮引起的交通事故,保障行车安全提高幸福感。
关键字:结构设计;运动分析;A区;B区
Abstract
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窗体底端
Wiper, as an integral part of modern vehicles, although small in structure, plays an important role in the safe driving of automobiles. The main function of wiper is rain, mud on the windshield wiper clean, polished the windshield of the car, the driver's line of sight is more clear, to get a clear vision, to ensure traffic safety, so the wiper brush effect is directly related to the driver's driving safety. Therefore, the performance of GB automotive windshield wiper set strict standards, the work of this paper is based on this, the wiper structure design.
First, the A and B regions are determined by analysis and calculation. And then analyze the wiper mechanical principle, parameters of wiper arrangement and the rod length is determined by calculating, the wiper parameters are determined and the wiper output shaft position determination. Finally, the structure and position of the wiper are adjusted so that the wiper area of the wiper is as large as possible, and the wiper effect of the wiper is improved by changing the structure. The design requirements for the design of passenger car wiper unit size, wiper structure size and parameters were determined, and then using CATIA to establish the wiper of the 3D model and Simulation of motion simulation, observe movement, according to the results of image rendering, using the simulation results, analysis of the motion curve of the wiper, accor