5.0吨液压挖掘机挖掘工作装置设计.docVIP

5.0吨液压挖掘机挖掘工作装置设计 摘要 挖掘机是工程机械的一种主要类型，是土石开挖的主要机械设备，包括有各种类型与功能的挖掘机。液压挖掘机是一种用途广泛的土石方施工机械，被大量应用于道路工程、矿山采掘、水利建设和农田开发的施工作业当中。 在这种国内外挖掘机发展的大情形下，我们进行挖掘机工作装置的合理性分析是有必要的，这有利于国内挖掘机行业的发展，为我国发挖掘机行业在国际竞争中立于不败之地打好基础。 工作装置是液压挖掘机的主要组成部分之一。因用途不同，工作装置的种类繁多，以满足不同的作业要求，例如：正铲，反铲，牵引绳，鹤式，塔式等。在上述工作装置中，反铲挖掘机应用最为广泛，因此合理设计工作装置具有十分重要的意义。 本论文主要对由动臂、斗杆、铲斗、连杆机构组成挖掘机工作装置进行设计。具体内容包括以下五部分: 挖机工作装置的总体设计； 挖掘机的工作装置详细的机构运动学分析；工作装置各部分的基本尺寸的计算和验证；工作装置主要部件的结构设计。最后在几种姿态下，提出施工操作结构改进时应注意的一些问题。通过静强度与动强度分析，得出了工作装置在静载荷下结构是安全的。 关键词：挖掘机，动臂，斗杆 ，铲斗 THE HYDRAULIC EXCAVATOR OF 5 TONS WORKING DEVICE STRUCTURE DESIGN ABSTRACT The excavator is the project machinery one kind of predominant type, is main mechanical device which the earth stone excavates, embody each kind of type and function excavator. Each kind of type excavator widespread application in industry and civil construction, transportation, water conservation electric power project, agricultural transformation, mine purchase as well as modernization military engineering and so on in mechanized construction. In case the domestic excavator development, rationality analysis we excavator working device is necessary, This is conducive to the development of domestic excavator industry, as Chinas Excavator Industry in international competition remain invincible to lay a good foundation. The working device is one of the main parts in hydraulic excavator. Due to the use of different types of work, for many, to satisfy the different requirements of operating, for example: shovel, hoe, a traction rope, crane, tower etc. In the above work device, backhoe excavator is most widely used, so the rational design of work device has a very important significance. This paper mainly carries on the design to the excavator working device is composed of a movable arm, bucket, bucket rod, connecting rod mechanism. Specific content includes the following five parts: The overall design of excavator working device of excavator working device; analysis of kinematics of the detailed calc