大型液压挖掘机工作装置设计方法研究  

Research on Design Method of Large Hydraulic Excavator Attachment

作　　者：李光[1] 李佳林[1] 谭磊[1] 宁晓斌[2] 

机构地区：[1]太原重型机械集团技术中心,山西太原030024 [2]浙江工业大学机械工程学院,浙江杭州030014

出　　处：《机械管理开发》2016年第7期5-8,共4页Mechanical Management and Development

基　　金：国家自然科学基金项目(51375452);山西省煤基重点科技攻关项目(MJ2014-01)

摘　　要：为大型正铲液压挖掘机工作装置的设计与研发,建立了工作装置多刚体运动模型、工作装置刚柔耦合动力学模型、矿石模型,分析了工作装置的运动性能、装置的动态强度、挖掘过程中铲斗所受挖掘阻力,研究了工作装置的工作范围,工作装置在工作范围内挖掘、举升、平推运动情况;模拟了斗杆挖掘工况;基于离散元技术和多体动力学技术,提出了大型液压挖掘机铲斗挖掘阻力计算方法,为挖掘机结构件强度分析和工作装置液压系统设计提供了关键的数据。研究结果表明:液压挖掘机工作装置运动和力学性能达到预定目标,挖掘阻力的计算为工作装置乃至液压系统的设计提供了理论依据。In order to offer references for design and development of the face-shovel hydraulic excavator attachment,the paper established the multiple rigid kinematics model,coupled dynamic model and ore model and analyzed the kinematic performance of attachment, equipment in the process of the dynamic strength, digging bucket by digging resistance and studied the work scope device, working device in the work within the scope of mining, lifting, horizontal pushing movement; simulated the bucket rod mining condition; And based on discrete element method, large hydraulic excavator bucket digging resistance calculation method is proposed for the excavator structure strength analysis and working device hydraulic system design provides the key data.Research results show that the kinematic and dynamic performance of hydraulic excavator attachment has reached the intended target. The calculation of digging resistance provides the theory basis for the design of attachment and even the hydraulic system.

关 键 词：液压挖掘机 工作装置 挖掘阻力 设计方法 

分 类 号：TU621[建筑科学—建筑技术科学]