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齿轮齿条 液压助力式 HGC1050轻型商用车转向系统设计【齿轮齿条 液压助力式】【5张PDF图纸+CAD制图+文档 HGC1050 轻型 商用 转向 系统 设计 齿轮 齿条 液压 助力 PDF 图纸

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黑龙江工程学院本科生毕业设计摘 要 本课题的题目是转向系的设计。用来改变或保持汽车行驶或倒退方向的一系列装置称为汽车转向系统。汽车转向系统的功能就是按照驾驶员的意愿控制汽车的行驶方向,因此对汽车的行驶安全至关重要。机械转向系由转向操纵机构、转向器和转向传动机 转向系统构三大部分组成。 此次是以齿轮齿条转向器的设计为中心，一是汽车总体构架参数对汽车转向的影响；二是机械转向器的选择；三是数据的确定，包括计算转向阻力矩和对转向盘施加的手力、力传动比和角传动比的计算，以满足转向器的正确传动比和强度要求；四是动力转向机构设计，包括动力缸尺寸计算、分配阀的设计以及参数计算。 因此本课题在考虑上述要求和因素的基础上研究利用转向盘的旋转带动传动机构的齿轮齿条转向轴转向，通过万向节带动转向齿轮轴旋转，转向齿轮轴与转向齿条啮合，从而促使转向齿条直线运动，实现转向。实现了转向器结构简单紧凑，轴向尺寸短，且零件数目少的优点又能增加助力，从而实现了汽车转向的稳定性和灵敏性。在本文中主要进行了转向器齿轮齿条的设计和对转向齿轮轴的校核，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；机械型转向器 ；齿轮齿条；机械设计；液压式助力转向器 ABSTRACT This topics topic is steering system design. Used to modify or keep driving or setback a series of device is called the direction for automotive steering system. The function of automotive steering system according to the drivers intention is the driving direction control vehicle, so safe driving the car is very important. Mechanical steering system, steering by steering control agencies and steering preach motivation steering system structure composed of three. This is the design of rack-and pinion steering gear for center, one is the overall structure parameters on car steering influence; 2 it is mechanical redirector choice; Three is data set, including the calculation of steering resistance moment and pressure of steering plate and Angle individual, force transmission differential calculation, to meet the correct ratio and the intensity of the steering requirements; Four is power steering mechanism design, including power cylinder size calculation, distributing design and parameter calculation. So this topic in considering the requirement and factors of using based on research of rotating disk drives to the drive mechanism for rack-and pinion steering shaft steering, through the gimbal drive shaft rotation, steering gear steering gear axle and steering rack, which prompted steering rack of meshing, realizing linear movement steering. Realize the redirector simple and compact structure, short axial dimensions, and the number of advantages and fewer parts can increase power, thus fulfilling the vehicle steering stability and sensitivity. In this paper focused on the design of steering gear rack of steering gear axle and checking, the main method and theory adopts car design experience in mechanical design parameters and the university the curriculum content of learned, its result meet design strength requireme