7.5吨履带式液压挖掘机总体设计.doc

原创通过答辩毕业设计说明书论文 QQ 194535455 摘要本次设计的题目是小型 吨履带式液压挖掘机的总体设计。与其它类型的挖掘机相比,这种类型的挖掘机因有良好通过性能应用最广,对松软地面或沼泽地带还可采用加宽、加长以及浮式履带来降低接地比压。液压挖掘机的主要特点为:能无级调速且调速范围大,能得到较低的稳定转速,快速作用时,液压元件产生的运动惯性小,加速性能好,并可作高速反转,传动平稳,结构简单,可吸收冲击和振动,操纵省力,易实现自动化控制,易于实现标准化、系列化、通用化。本次设计的主要参数是斗容量 3, 它属于中小型液压挖掘机,主要设计挖掘机的工作装置。关键词:液压挖掘机,挖掘机构原创通过答辩毕业设计说明书论文 QQ 194535455 ABSTRACT This designed topic is the marching hydraulic excavator excava - anization. Compared with other types excavators, this kind of type excavator used very universal that because has good through theper - formance, also may use to lengthens widens as well as the floating type caterpillar band to reduce pressure for the soft ground or the bogregion. The hydraulic excavator main characteristic is:not only can adjust s the stepless speed but also can adjust scope very big, can obtain a lower stable rotational speed, when action quickly, the hydraulic parts produce inertia small, accelerational theperformance good,and may make the high speed reverse, the transmission steady,structure simple, may absorb attacks and vibrates, the operation reduces effort, and tobe easy to realize the automated control, is easy to realize the standardization, the seriation, the universalization. This designed main parameter is scoop capacity 3, it is long to the middle and small scale hydraulic excavator, mainly design the excavator ,s the work installment. Key word : Hydraulic pressure excavator , anization 原创通过答辩毕业设计说明书论文 QQ 194535455 目录 1 绪论............................................................................................................... 1 液压挖掘机的工作特点和基本类型..................................................... 2 液压挖掘机的发展概况......................................................................... 4 本次设计概述......................................................................................... 6 反铲装置的工作原理............................................................................. 6 本次设计任务.........................