车辆工程毕业设计166轻型货车转向器设计

本科学生毕业设计

轻型货车液压转向器设计

院系名称：汽车与交通工程学院

专业班级：车辆工程

学生姓名：

指导教师：

职称：实验师

The Graduation Design for Bachelor's Degree

The Design for Vans Hydraulic Steering

Gear

Candidate：wangwei

Specialty：Construction Machinery

Class: BW07-3

Supervisor：Tianfang

Heilongjiang Institute of Technology

摘要

本设计是一款轻型货车的转向器。通过有关资料对转向器的分类,结构性能，工作原理，发展方向做一系列的调查了解，决定本设计的转向器，主要是根据汽车的类型、前轴负荷、使用条件等来决定，并要考虑其效率特性、角传动比变化特性等对使用条件的适应性以及转向器的其他性能、寿命、制造工艺等。

设计的主要内容包括总体设计方案的确定、主要性能参数的确定、齿轮齿条转向器的尺寸计算和齿轮齿条的几何传动关系计算，对齿轮齿条进行了设计计算并进行了校核，其中着重对主动小齿轮的齿根弯曲强度进行了校核。最后查阅有关资料对其进行动力辅助液压装置的相关设计，主要对液压动力缸直径的计算，分配阀和反作用阀有关参数的确定，油罐容积和油泵排量的设计等，根据计算利用AutoCAD画出装配图和零件图。

关键词：轻型货车；转向器；齿轮齿条；转向助力；转向系统。

Abstract

This design is a light wagon steering gear. Through the relevant material to the classification of steering gear, structure performance, principle of work, doing a series of development direction, decided to investigate the design of steering gear, mainly based on the type, front axle load, use conditions to decide, and should consider its efficiency characteristics, Angle changes to use characteristics of transmission ratio of the conditions of the adaptability and other properties, life the products, manufacturing process, etc.

Design of the main content including overall design scheme, the main property parameter determination of the determination of the size of the steering gear, gear rack calculation and super-modulus gear geometry calculation of gear transmission relations, the designing calculation rack and checks, which focuses on the initiative of the small gear tooth root bending strength check. Finally consult relevant material to the auxiliary power of hydraulic equipment related design, mainly to the hydraulic power cylinder the diameter of the calculation, and adverse effect on distributing valve valve of parameters, volume and oil pump oil tank displacement of design, according to the calculated using AutoCAD draw assembly drawings and drawing.

Keywords: Vans, Redirector; Rack-and pinion; Steering system.

目录

摘要 (Ⅰ)

Abstract (Ⅱ)

第1章绪论 (1)

1.1研究的目的意义 (1)

1.2转向器的发展现状 (1)

1.3 确定设计方案 (5)

1.4 本章小结 (7)

第2章主要性能参数的确定 (9)

2.1确定转向盘直径 (9)

2.2计算转向系效率 (9)

2.3计算转向系传动比 (11)

2.4 本章小结 (12)

第3章转向器机械部分的设计计算 (13)

3.1 齿轮齿条尺寸结构的设计 (13)

3.2齿轮齿条几何传动的关系 (14)

3.3齿轮强度的校核 (16)

3.4 本章小结 (26)

第4章转向器液压动力辅助系统设计 (27)

4.1液压动力缸直径设计 (27)

4.2分配阀有关参数确定 (28)

4.3反作用阀和回位弹簧参数确定 (29)

4.4油罐容积和油泵排量设计 (30)

4.5结论 (30)

结论 (31)

参考文献 (32)

致谢 (33)

附录A (34)