液压挖掘机行走机构设计(cg)液压挖掘机行走机构设计(crg)液压挖掘机行走机构设计(crg)液压挖掘机行走机构设计(crg).doc

昆明理工大学成人高等教育 毕 业 设 计（论文） 题目：液压挖掘机行走机构设计 姓 名：付文香 专 业：机电设备维修与管理 年 级：2010级 指导教师：杜宝林 函 授 站：昆明工业职业技术学院 目 录 前言·····················································2 - 摘要·····················································2 - 第一章 绪论··············································3- 1.1液压挖掘机在现代化建设中的作用·······················3- 1.2液压挖掘机的基本类型·································4- 1.3本设计的目的和意义···································5- 第二章 总体方案设········································5 2.1履带式液压挖掘机的组成·······························5- 2.2设计依据·············································6- 2.3总体设计原则·········································7- 2.4传动方式的比较与选择·································7 第三章 主要参数确·······································10- 3.1总体几何尺寸的设计···································10 3.2驱动轮主要参数的确定及强度校核·······················13 3.3功率计及挖掘力参数计算与确定·························14 3.4行走装置的牵引力计算·································16 3.5液压马达主要参数计算确定·····························18 第四章 张紧装置设计要求与计算···························21 - 4.1张紧弹簧的设计·······································21 第五章 四轮一带及其他部件·······························22 - 5.1四轮一带选型·········································22 5.2悬架选型与制动器选型·································26 第六章 设计工作总结······································28 - 致 谢·····················································29 参考文献··················································29 液压挖掘机行走机构设计 【摘要】随着人类社会的不断进步，科学技术的高速发展，工程机械在各行各业中得到了很好的运用。然而，在不同的环境下，对挖掘机等工程机械的大小、性能的要求有所不同，各种性能参数决定其工作环境。工程机械在国民生产中有着很重要的位置，它在很大程度上取代了原始的、落后的生产工具，它在现今中国和全世界的飞速发展的今天功不可没。然而，在不同的环境下，对挖掘机等工程机械的大小、性能的要求有所不同， 各种性能参数决定其工作环境。 而挖掘机的行走装置是整个机械的支撑部分，它承受机械的自重及工作装置挖掘时的反力，使挖掘机稳定的支撑在地面工作，也是挖掘机在工作 场地自由移位的装置。行走装 置设计的好坏会影响挖掘机的机动性、爬坡能力、越野性能、接地比压以及挖掘机的稳定性等。 【关键词】履带式，液压挖掘机，行走机构，张紧装置。 前 言 改革开放以来，我国的科学技术、信息技术迅猛发展，各行各业都发生了翻天覆地的变化，工程机械行业同样得到了相应的快速发展。各行各业都在奋力拼搏、大胆创新，使得工程机械品种不断增加、产量不断提高、性能不断完善，发展势头强劲。 液压挖掘机是工程机械的一个重要品种，是一种广