推土机工作装置结构及液压系统设计01.docxVIP

摘 要推土机推铲货物的作业是通过工作装置的运动实现的。推土机的工作装置由铲斗，支撑臂、连杆及液压系统等组成。铲斗以推铲物料；支撑臂和支撑臂油缸的作用是提升铲斗并使之与车架连接；转斗油缸通过支撑板，连杆使铲斗转动。支撑臂的升降和铲斗的转动采用液压操作。先对推土机的发展概况几设计的指导思想、特点、任务进行概述，然后确定方案，在技术设计部分罗列了推土机的主要技术性能和参数，进行了牵引特性计算，工作装置设计。工作装置设计中有工作装置运动分析，对铲斗、支撑臂、连杆机构进行设计等几部分组成。在工艺设计中叙述了工艺工程。应用程序计算了受力分析。总之，整个设计是有序地完成的。关键词：推土机；工作装置；强度校核；液压系统AbstractBulldozers shoveling cargo operation is accomplished by movement of working device. Of bulldozer working device by the bucket, bracket, connecting rod and hydraulic system, etc. Bucket to push shovel material; Bracket and the bracket is to improve the action of oil cylinder bucket and connected to the frame; Turning cylinder through the support plate, connecting rod to rotate the bucket. The rise and fall of bracket and the rotation of the bucket adopts hydraulic operation. General situation of the development of bulldozer first several design guiding principle, characteristics and tasks are summarized, and then determine the scheme, the technical design part listed the main technical performance and parameters of bulldozer, the traction calculation, working device design. Motion analysis device has a job in the design of device, the bucket, bracket, linkage design, etc. In the process described in the design of process engineering. Application to calculate the stress analysis. In a word, the whole design is done in an orderly fashion.Key words: bulldozer, Working device; Intensity; The hydraulic system目录摘 要1Abstract2第一章 绪论41.1推土机的介绍41.2 推土机在地下推铲作业中的应用51.3 我国推土机的发展前景61.4 推土机分类71.5 结构和原理81.6 推土机总体设计的任务81.7 课题背景和设计意义8第二章 推土机总体方案设计102.1 各个机构的选择102.1.1 动力装置102.1.2 传动机构102.1.3 行走机构112.1.4 工作装置112.1.5 液压系统112.2 推土机总体参数选择122.2.1 推土机重量和接地比压122.2.2 推土机的行走速度122.2.3 铲刀的垂直压力及比压入力132.2.4 铲刀的提升高度和切削深度132.2.5推土机生产率132.2.6推土机重心计算15第三章 推土机工作装置设计173.1 工作装置结构类型173.2 工作装置主要参数及结构尺寸的确定183.2.1铲刀的高度和宽度183.2.2 推土板角度参数的选择193.2.3推土板曲率半径213.2.4推土板直线部分及档土板尺寸213.2.5顶推架于台车架的铰点位置213.2.6铲刀钢板厚度223.3 推土机工作装置的强度计算223.3.1土壤的切削性能223.3.2推土机受力分析233.3.3推土机作业阻力计算253.4 推土机铲刀的强度计算283.4.1计算位置的