毕业论文__7吨液压挖掘机斗杆铲斗和油缸设计.docVIP

7吨液压挖掘机斗杆、铲斗总成及油缸的设计 摘 要 液压挖掘机应用面广，使用量大，在工程机械市场占有很重要的地位，目前已成为工程机械第一主力机种。液压挖掘机模仿人体构造，有大臂、小臂和手腕，能“扭腰”旋转和行走，具有较长的臂和杆，可做空间六自由度动作，配装上各种工作装置能进行立体作业。这种带有类似人类“基因”的挖掘机已成为人类工程建设中的主要伙伴之一，也被称为土建机械手，是建设机器人的代表。正因为液压挖掘机通用性强，作业范围广，所以被认为是多功能的工程机械。 我的毕业设计课题是7吨液压挖掘机斗杆总成及斗杆油缸设计。该设计主要是通过对广西玉柴生产的YC-60液压挖掘机进行现场测绘，取得了工作装置的大体结构数据。对YC-60和YC-70液压挖掘机的主要参数进行比较，再结合《液压挖掘机》和《液压与气动传动》，对单斗液压挖掘机的工作装置进行运动学分析和结构参数的计算。根据运动学分析和结构参数的计算结果得到斗杆的基本尺寸和结构尺寸，同时完成斗杆油缸的计算设计。最后用CAD 软件进行二维图的绘制。 关键词：液压挖掘机；斗杆；铲斗；铲斗油缸；设计 7 Tons of Hydraulic Excavator Arm Bucket Assembly and Cylinder Design Abstract Hydraulic excavator, a wide range of applications, the use of a large quantity, occupies a very important position in the market engineering machinery, has now become the first main machines of mechanical engineering. Hydraulic excavator mime the human body structure, a big arm, small arm and wrist, to twist rotation and walking, with long arms and bar, does six degree of freedom motion space, equipped with a variety of working device for stereo operation. This is similar to the human gene of the excavator has become a human engineering construction in the main partners, also known as civil mechanical hand, is representative of construction robot. Because of the hydraulic excavator versatility, wide scope of operation, so it is considered a function of Engineering machinery. My graduation project is seven-ton hydraulic excavator arm and bucket cylinder assembly and design. The design is mainly produced by Guangxi Yuchai YC-60 hydraulic excavators site mapping, made the general working device data. Combining with?‘hydraulic excavator’?and?‘hydraulic and pneumatic?drive’,respectively, using the mechanical knowledge of hydraulic excavator working device kinematics analysis and mechanical calculations. Kinematic analysis and mechanical calculations based on the results obtained Stick size of the basic size and structure, while the calculation of the completion Stick