摘要:本論文主要介紹了汽車驅動橋殼體常見的故障檢測以及維修的方法。汽車驅動 橋是汽車的重大總成，承載著汽車的滿載簧荷重及地面經車輪、車架及承載式車身 經懸架給予的鉛垂力、縱向力、橫向力及其力矩，以及沖擊載荷；驅動橋還傳遞著 傳動系中的最大轉矩，橋殼還承受著反作用力矩。汽車驅動橋結構型式和設計參數 除對汽車的可靠性與耐久性有重要影響外，也對汽車的行駛性能如平順性、通過性、 機動性和穩定性等有直接影響。而作為驅動橋總成中處于支柱地位的殼體基本承受 了驅動橋所承受的絕大部分的力，可以這樣說，驅動橋殼體之于汽車而言起到了頂 梁柱的作用也一點都不為過。驅動橋是非易損件，其常見故障主要為殼體的彎曲變 形及裂縫。另外，半軸套管的磨損及裂紋也是構成橋殼故障的一個重要方面。因此， 本文通過對驅動橋殼體的分類以及組成等基本知識的介紹，通過對殼體在工作時的 受力分析、剪力分析、彎曲分析以及疲勞強度的分析找出殼體發生故障的根本原因所在，更能指導我們對癥下藥，找出汽車驅動橋殼體維修的方法。

關鍵詞：橋殼，工藝，強度，彎矩，檢測，維修

Abstract:This paper introduces the common driving axle housing failure detection and repair methods. Automotive drive axle is a major automobile assembly, spring loaded cars carrying the load and ground by the wheels, frame and suspension Unibody given by the vertical force, vertical force, lateral force and torque, and impact loading; drive axle also conveys the maximum torque transmission, axle torque reaction also suffer. Automotive drive axle structure type and design parameters in addition to the reliability and durability of vehicles have a major impact, but also the car's driving performance, such as ride comfort, by nature, mobility and stability have a direct impact. As a drive axle assembly in a dominant position in the basic shell of the drive axle to withstand exposure to most of the force, can be said drive axle housing of a pillar in the car in terms of the role played not for the point too. Drive axle non-wearing parts, the common faults are mainly in bending and cracking the shell. In addition, the wear bushing and axle failure crack is also constituted an important aspect. Therefore, this article on the drive axle housing through the classification and basic knowledge of the composition of the introduction, through the shell at work, stress analysis, shear analysis, analysis and fatigue analysis of curved shell failure to identify the fundamental reason, a better guide us in the right remedy, find the vehicle drive axle housing maintenance.

Key words: Axle housing, technology, strength, bending moment, testing, maintenance