文档介绍：毕业设计(论文)
题目: 货车循环球式转向系统设计
(英文):
货车循环球式转向系统设计
摘要
汽车在行驶的过程中,经常需要改变行驶的方向,称为转向。轮式汽车行驶是通过转向轮(一般是前轮)对汽车纵向轴线偏转一定角度来实现的。驾驶操纵用来改变或恢复汽车行驶方向的专用机构称为汽车转向系统。常用的汽车转向系统分为非动力转向系统和动力转向系统两大类。非动力转向系统又称机械式转向系统,是以人的体力为动力源,其中所有的传力器件都是机械的,主要由转向操纵机构、转向器和转向传动机构三部分组成,其中转向器是汽车转向系统的重要零部件,其性能的好坏直接影响汽车行驶的安全性和可靠性。汽车动力转向系统(Power Steering System),亦可称作转向加力系统,是在机械转向系的基础上增设了一套转向加力装置所构成的转向系统。
本课题的题目是货车循环球式转向系统的设计。课题以机械式转向系统的循环球式转向器设计及校核、整体式转向梯形机构的设计及验算为中心。首先对汽车转向系统进行概述,分析各种转向系统的工作原理和优缺点、发展现状,,对转向系统的整体方案进行选择,,对循环球式转向器的各个数据进行选择,,概述对动力转向机构的要求,对动力转向机构的布置方案进行选择并进行各个数据的计算。五是整体式转向梯形机构的设计以及验算,并根据梯形数据对转向传动机构作尺寸设计。,主要方法和理论采用汽车设计的经验参数和大学所学机械设计的课程内容进行设计,其结果满足强度要求,安全可靠。
关键词:转向系统;机械型转向器;循环球式;液压式助力转向器
Truck circulating ball type steering system design
Abstract
Cars in the course of traveling, often need to change the direction of travel, referred to as steering. Wheeled vehicle with the vehicle longitudinal axis of the deflection angle by the steering wheel (typically a front wheel). The driving control is used to change or restore the direction of vehicle travel special body called the automobile steering systems. Commonly used in automotive steering system is divided into non-power steering system and power steering system two categories. Non-power steering system, also known as mechanical steering system, based on a person's physical power source, power transmission devices are mechanical steering mechanism, steering gear and steering linkage parts, including steering important parts of automobile steering systems, the performance of a direct impact on the safety and reliability of the cars. Power steering system (Power Steering System), also called steering afterburner system in the mechanical steering system based on the creation of a steering system steering afterburner device.
This topic entitled trucks recirculating ball steering sys