夹爪结构的设计与分析  

Design and analysis on the structure of claw

作　　者：张小珍[1] 沈嵘枫[1] 周成军[1] 周新年[1] 林曙[1] 吴传宇[1] 

机构地区：[1]福建农林大学交通与土木工程学院,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2016年第3期356-360,共5页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：福建农林大学教材与实践研究项目(111414044);福建农林大学林业智能机械立体化教材项目(112515013);福建农林大学交通运输类实验教学示范中心资助项目(01SJ10009);福建农林大学高水平大学建设重点资助项目(113-612014018);国家教育部创新科技计划项目(111ZC5040)

摘　　要：为了加强夹爪的结构,提高其承载能力,使用Solid Works软件建立夹爪的三维模型,并分析夹爪满载时液压缸和钳口的受力情况,阐述模型静力学分析的边界条件.通过Hyper Works软件对模型进行有限元分析,对钳口的强度进行校验.通过分析钳口的应力云图,对模型进行改进和重新设计,并对新模型进行验证.结果表明,改进模型2(增大侧板外弧半径)的结构设计比改进模型1(增加侧板厚度)的更加合理.To optimize the structure of claw for better bearing capacity and reinforcement, three-dimensional model of claw clip wasestablished by SolidWorks software, and boundary condition of statics analysis was evaluated basing on the force of hydraulic pumpand jaw when claw was fully loaded. Strength of the jaw was verified by finite element analysis via HyperWorks. Subsequently, the o-riginal jaw model was redesigned and modified basing on stress nephogram and followed by revalidation on the performance of thenew model. The results showed that the structure design of the improved model 2 （an increase of side outer arc radius） was morereasonable than the improved model 1 （an increase of side plate thickness）.

关 键 词：夹爪 建模 有限元分析 可靠性 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]