毕业设计（论文）-ZL50铰接式装载机带轮边减速驱动器设计.docx

太原科技大学本科毕业设计说明书 ZL50 铰接式装载机带轮边减速驱动器设计 ZL50 Loader Drive Bridge Preliminary Design 学院(系):机械工程学院专业: 工程机械学生姓名: 学号: 指导教师: 评阅教师: 完成日期: 2012 年6月 10日太原科技大学 Taiyuan University of Science and Technology ZL50 铰接式装载机带轮边减速驱动器设计 I 摘要本次毕业设计题目为 ZL50 装载机驱动桥及主传动器设计,大致上分为主传动器设计、差速器设计、半轴设计、终传动设计和桥壳设计五大部分。本说明书将以“驱动桥设计”为内容,对驱动桥及其主要零部件的结构型式与设计计算作一一介绍。本次设计中,ZL50 装载机传动采用液力机械传动方案,选用双涡轮液力变矩器和行星动力换挡变速箱,并按以下原则分配传动比:在终传动能安装的前提下,将传动比尽可能地分配给终传动,使整机结构尺寸减小,结构紧凑。主传动器采用单级锥齿轮传动式,锥齿轮采用 35o螺旋锥齿轮并选用悬臂式支承。将齿轮的基本参数确定以后,算得齿轮所有的几何尺寸,然后进行齿轮的受力分析和强度校核。齿轮的基本参数和几何尺寸的计算是此部分设计的重点。在掌握了差速器、半轴、终传动和桥壳的工作原理以后,结合设计要求,合理选择其类型及结构形式,然后进行零部件的参数设计与强度校核。差速器设计采用普通对称式圆锥行星齿轮差速器, 齿轮选用直齿锥齿轮。半轴设计采用全浮式支承方式。终传动设计采用单行星排减速形式。关键词: ZL50 ;装载机;驱动桥;设计 ZL50 铰接式装载机带轮边减速驱动器设计 II ZL50 Loader Drive Bridge Preliminary Design Abstract The content of my graduation design is The Design of ZL50 Loader Axles (Main Transmission), largely at five parts, included of the main transmission design, differential design, half-shaft design, the design of the final drive and design of axle case .The design specifications will introduce the structure type and design of the drive axle and the ponents in the driving axle design one by one. In this design, ZL50 loader is adopts hydromechanical transmission, select and uses double turbine hydraulic torque converter and ary power shift transmission, and distribution of the transmission ratio according to the following principles: in the premise of final drive can be installed in the hub, assign the transmission ratio to final drive as much as possible to makes the whole structure size decreases and structure terse. Main drive is adopts a single-stage bevel gear with 35 o and spiral bevel gears use cantilever support. After considered of the basic parameters of gear, calculate all the geometric parameters of the gear, and then analysis gear stress and check its strength. The calculation of gear ’s basic parameters and geometry parameters is the key point of this part. After mastered the working principle of differenti