JX1021TS3轻型货车驱动桥毕业设计.docx
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1、JX1021TS3轻型货车驱动桥毕业设计 ABSTRACT Pickup trucks take a large proportion of commercial vehicles production, and the drive axle is one of the most important structure. Drive axle is the one of automobile four important assemblies, Its performance directly influence on the entire automobile, especially for
2、 the truck .Because using the big power engine with the big driving torque satisfied the need of high speed, heavy-loaded, high efficiency, high benefit today truck, must exploiting the high driven efficiency single reduction final drive axle is becoming the trucks developing tendency. Design a simp
3、le, reliable, low cost of the drive axle, can greatly reduce the total cost of vehicle production, so the title of the fine structure of the design of a pickup vehicle drive axle has a certain practical significance. The configuration of the Driving Axle is introduced in the thesis at first. On the
4、basis of the analysis of the structure and the developing process of Driving Axle, the design adopted the Integral Driving Axle, Single Reduction Gear for Main Decelerators deceleration form, Spiral Bevel Gear for Main Decelerators gear, Full Floating for Axle and Casting Integral Axle Housing for A
5、xle Housing. In the design, we accomplished the design for Double Reduction Gear, tapered Planetary Gear Differential Mechanism, Full Floating Axle, the checking of Axle Housing and the election of the material and so on. Finally complete the final assembly drawing by using AUTOCAD and mapping the m
6、ain components.In this paper, first of all determine the structure of major components and the main design parameters, the analysis of the various parts of the structure of the bridge drive type, the form of the development process and its advantages and disadvantages of the past, determined on the
7、basis of the design program, using the traditional design method of various parts of the drive axle Main reducer, differential, axle, axle housing was designed to calculate and complete the check. Finally complete the final assembly drawing by using AUTOCAD and mapping the main components. Keywords:
8、 Pickup truck; Drive axle; Single reduction final drive; Differential; Axle; Drive Axle housing 目录 摘要. 错误!未定义书签。Abstract . 错误!未定义书签。第1章绪论 . (1) 1.1选题的背景目的及意义 (1) 1.2国内外驱动桥研究状况 (1) 1.3 设计主要内容 (3) 第2章驱动桥的总体方案确定 (4) 2.1驱动桥的种类结构和设计要求 (4) 2.1.1汽车车桥的种类 (4) 2.1.2驱动桥的种类 (4) 2.1.3驱动桥结构组成 (4) 2.1.4 驱动桥设计要求 (5
9、) 2.1.5设计车型主要参数 (5) 2.2主减速器结构方案的确定 (6) 2.2.1主减速比的计算 (6) 2.2.2主减速器的齿轮类型 (7) 2.2.3主减速器的减速形式 (8) 2.2.4主减速器主从动锥齿轮的支承形式及安装方法 (9) 2.3 差速器结构方案的确定 (11) 2.4半轴的形式确定 (11) 2.5桥壳形式的确定 (12) 2.6本章小结 (13) 第3章主减速器设计 (14) 3.1概述 (14) 3.2主减速器齿轮参数的选择与强度计算 (14) 3.2.1主减速器计算载荷的确定 (14) 3.2.2主减速器齿轮参数的选择 (15) 3.2.3主减速器齿轮强度计算
10、(18) 3.2.4主减速器轴承计算 (24) 3.3主减速器齿轮材料及热处理 (30) 3.4主减速器的润滑 (31) 3.5本章小结 (31) 第4章差速器设计 (32) 4.1概述 (32) 4.2对称式圆锥行星齿轮差速器原理 (32) 4.3对称式圆锥行星齿轮差速器的结构 (33) 4.4对称圆锥行星锥齿轮差速器的设计 (34) 4.4.1差速器齿轮的基本参数选择 (34) 4.4.2差速器齿轮的几何尺寸计算 (36) 4.4.3差速器齿轮的强度计算 (37) 4.4.4差速器齿轮的材料 (39) 4.5本章小结 (39) 第5章半轴及驱动桥桥壳的设计 (40) 5.1概述 (40)
11、5.2半轴的设计与计算 (40) 5.2.1全浮式半轴的计算载荷的确定 (40) 5.2.2半轴杆部直径的初选 (42) 5.2.3全浮式半轴强度计算 (42) 5.2.4全浮式半轴花键强度计算 (43) 5.2.5半轴材料与热处理 (44) 5.3桥壳的受力分析及强度计算 (44) 5.3.1桥壳的静弯曲应力计算 (45) 5.3.2在不平路面冲击载荷作用下桥壳的强度 (46) 5.3.3汽车以最大牵引力行驶时的桥壳的强度计算 (46) 5.3.4汽车紧急制动时的桥壳强度计算 (48) 5.3.5汽车受最大侧向力时桥壳强度计算 (48) 5.4本章小结 (51) 结论 (52) 参考文献 (
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