论文部分内容阅读
重型运输车外形尺寸大,往往需要多轮甚至全轮转向,以便减小转弯半径。为了降低轮胎摩损,提高方向控制的平稳性,要求转向连杆机构有较高的传动精度。SolidW orks软件具有几何约束和尺寸驱动等参数化设计功能,且与Excel软件无缝兼容。在SolidW orks软件中建立动态模型,并采用作图法,结合Excel软件的数据处理及图表功能,考核目标值,找出其变化趋势,通过优化分析得到合理的机构铰点尺寸。确定机构后,再利用转矩平移原理,建立机构杆系的数学模型,在Excel软件中采用枚举法求极限值,计算出机构中各类力学数值,设计机构合理的尺寸。
Heavy truck size, often require multiple rounds or even all-wheel steering, in order to reduce the turning radius. In order to reduce the wear and tear of the tire and improve the stability of the direction control, the steering linkage mechanism is required to have higher transmission precision. SolidW orks software has parametric design features such as geometry constraints and dimensioning, and is seamlessly compatible with Excel software. In SolidWakes software, a dynamic model was established. With the help of drawing method and data processing and charting function of Excel software, the target value was evaluated and the trend of change was found out. Through reasonable analysis, the reasonable size of hinge point was obtained. After determining the mechanism, the principle of torque translation is used to establish the mathematical model of mechanism bar, and the limit value is obtained by enumeration method in Excel software to calculate the various mechanics values in the mechanism and design the reasonable size of the mechanism.