双节距齿形输送链链板的结构优化  

Structure Optimization of Chain Plate of Double-pitch Silent Chain for Conveyor

作　　者：田辉[1] 王文成[1] 赵海贤[1] 付鑫涛 王锋[1] 刘春哲[1] 

机构地区：[1]承德石油高等专科学校机械工程系,河北承德067000

出　　处：《机械传动》2017年第7期164-167,共4页Journal of Mechanical Transmission

基　　金：河北省高等学校科学技术研究项目(QN2015196)

摘　　要：双节距齿形输送链链板结构是内外复合啮合标准齿形链链板的变异结构,在齿形链啮合原理中,内外复合啮合齿形链的链板结构参数伸出量没有明确的数值关系,导致设计的链条无法最优地实现内外复合啮合机制的功能。基于Solid Works/motion软件创建了双节距齿形输送链链板的参数化模型及与特定链轮齿数相对应的简化的运动分析模型,以伸出量的高度Y与数值δ为变量,以实现内外复合啮合过程与最小啮合冲击力为目标进行仿真分析。结果表明,链轮齿数一定时,伸出量是影响链条实现内外复合啮合过程的重要参数;综合比较,当链轮齿数为38齿,伸出量取值高度Y为0.25P_S,数值δ为0.013P_S时,能够实现双节距齿形输送链与渐开线链轮的内外复合啮合过程,且啮合力最小,结构最优。The chain plate structure of double pitch silent conveyor chain is the variation structural of internal and external composite engaged standard silent chain. The chain cannot normally internal and external composite engage with sprocket because there is no specific numerical relationship of protrusion length,one of the design parameters of silent chain structure,in the meshing principle of silent chain. A parametric model of the chain plate and a simplified model of motion analysis of double-pitch silent conveyor chain drive system are created by Solidworks/Motion software. In order to realize the composite engagement mechanism and the minimum meshing impact force,the height Y of protrusion length and the value δ of protrusion length are defined as variable,and the simulation analysis is carried out. The results show that protrusion length is important influencing factor for realizing internal and external composite engage process of double-pitch silent chain drive system. By the general comparison,the optimal construct parameters are obtained. When the sprocket tooth number is 38,the height Y of protrusion length is 0. 25 P_S,and the value δ of protrusion length is 0. 013 P_S,the internal and external composite engage process of chain can be realized,and the meshing impact force is smallest and structural is optimum at that time.

关 键 词：双节距齿形链链板 结构参数 伸出量 啮合力 

分 类 号：TH233[机械工程—机械制造及自动化]