文档介绍：提供各专业全套毕业设计
本科学生毕业设计
小型举升车改装设计
院系名称: 汽车与交通工程学院
专业班级: 车辆工程 B07-1班
学生姓名:
指导教师:
职称: 副教授
黑龙江工程学院
二○一一年六月
The Graduation Design for Bachelor's Degree
Small lift truck design modifications
Candidate:
Specialty:Vehicle Engingeering
Class:B07-1
Supervisor:Associate Prof.
Heilongjiang Institute of Technology
2011-06·Harbin
摘要
本设计主要以小型举升车改装结构为研究对象,对于副车架结构、上下臂进行结构和该车上的液压系统进行设计。主要分三部分进行阐述,第一部分:根据设计要求选择合适的二类底盘,对副车架进行设计及校核,确定副车架与车架的安装方式。最后画出副车架的总装图及零件图。第二部分:,在满足作业高度的前提下,进行高空作业臂的结构设计;首先根据工作载荷使用要求选择作业臂材料的类型;其次根据最大作业高度确定上下臂的长度;在经过受力分析利用强度来确定臂的截面尺寸及油缸的铰接位置;进而校核强度、刚度、稳定性,查看作业臂的尺寸是否符合要求。对施加均布载荷和约束,进行结构的强度和刚度分析,确定危险截面或危险点的应力分布及变形。最后画出作业臂总装图及上下臂零件图。第三部分:液压控制部分主要是指控制上下臂变幅运动的液压缸。文中详细记录了举升机构上臂液压缸和下臂液压缸的设计过程。在确定液压系统元件参数的基础上,完成了液压传动系统的设计计算,并作出液压系统图。
全套图纸,加153893706
关键词:举升车;高空作业车;液压系统;支腿;液压缸。
ABSTRACT
This is designed to be small lift vehicles into the structure of the study, the sub-frame structure, upper and lower arm to the vehicle structure and hydraulic system design. ponent the same elaborate, part one : according to the maximum working height 4 aerial. 5mm , in meet job height of premise Xia , for aerial arm of structure design ; first under work load using requirements select job arm material of type ; second under maximum job height determine upper and lower arm of length ; in after by force analysis using strength to determine arm of section size and the oil cylinder of articulated location ; turn check strength , and stiffness , and stability , view job arm of size is meet requirements . To impose uniform load and constraint, strength and stiffness of the structural analysis to determine stress distribution and deformation of the dangerous section or so points. Last draw operations arm Assembly plans and parts of upper and lower arm. Part II : hydraulic control part mainly refers to the control arm of luffing motion up and down hydraulic cylinder. Aerial institutions the upper arm is recorded in detail design of hydraulic cylinder with hy