单斗液压挖掘机工作装置结构设计

摘  要

液压挖掘机是工程机械的重要产品之一，具有较高的技术含量。工作机构是液压挖掘机的主要装备，机构各铰点以及其具体结构的设计将是决定工作机构性能水平的重要因素，决定了液压挖掘机的工作性能，影响其最终使用性能的好坏，所以对液压挖掘机工作机构的研究是十分有必要的。利用SolidWorks软件先建模后分析，可以大大缩短设计周期和设计工作量，能快速适应市场竞争的需求，有着重大的社会价值和经济价值。

本次设计完成的主要任务有：

1） 挖掘机工作机构类型的综合分析和选用；

2） 液压挖掘机工作装置的结构设计和尺寸计算；

3） 工作装置部分的液压系统设计；

4） 对主要零部件进行力学分析和计算；

5） 驾驶室、三组油缸、铲斗、动臂、斗杆、摇杆的三维建模；

6） 挖掘机整体建模与装配设计；

关键词： 液压挖掘机；工作机构；液压系统；力学分析；

The Design and Motion Analysis of Hydraulic Excavator's Working Mechanism

Abstract

The hydraulic excavator is one of the most important construction machineries, and includes the higher technical specification. Working device is the main equipment of the Hydraulic Excavator. The design of hinge points and concrete structures is an important factor which has a decisive influence on the use of working device. And it affects the quality of the end-use performance. Therefore, the research of the hydraulic excavator is necessary. Motion simulation is down after modeling by SolidWorks .This method of design can greatly reduce the design cycle. Also it can quickly adapt to the needs of market competition, has significant social value and economic value.

Main contents contained in the article are following:

1) The comprehensive analysis and selection of excavator working mechanism type;

2) The structure design and size calculation of hydraulic excavator working equipment;

3) The hydraulic system design of working device;

4) The analysis and calculation of the ma the typical parts;

5) The 3D modeling of operator cab, three groups of oil cylinder, bucket, boom, arm and bucket;

6) Excavator overall modeling and assembly design;

Key Words：Hydraulic Excavator；Working Device；Hydraulic System；Mechanical Analysis；Motion Analysis