摘要
抓斗挖泥船的定位桩系统的升降单元常用的齿轮齿条机构可控制连续升降等优点,但其制造和维护成本高、制造困难,而销轮齿条机构具备了齿轮齿条的优点,又避免其缺点。在12方钢索抓斗挖泥船定位桩系统升降单元采用了销轮齿条机构,但国内使用销轮齿条结构转递动力的场合较少。为了验算销轮齿条结构能满足使用要求,利用SolidEdge软件对定位桩系统升降单元进行三维建模,利用有限元软件ANSYS对销轮齿条结构升降单元进行应力分析。首先是基于该系统的各个部件结构参数进行说明,然后对啮合传动的整体部件进行有限元应力分析,得出各个零部件的应力分布及最大应力点。结论表明,各个部件的应力情况均能满足强度要求。齿条受力面积增大,齿条最大应力呈现下降趋势;随着销齿跨度增大,所受弯矩变大,销齿最大应力呈现上升趋势。
The rack and pinion mechanism commonly used in the lifting unit of the positioning pile system of grab dredger can control the continuous lifting and so on, but its manufacturing and maintenance cost is high, and the manufacturing is difficult. The pinion and pinion mechanism has the advantages of the rack and pinion, and avoids the disadvantages of the rack and pinion unit. In the essay, pin-wheel tooth bar mechanism is adopted in the lifting unit of 12-square cable grab dredger positioning pile system, but it is seldom used in China to transfer power. In order to check the pin tooth strip structure can meet the requirements of use, SolidEdge software was used to conduct 3D modeling of the lifting unit of the positioning pile system, and stress analysis software ANSYS was used to conduct stress analysis of the lifting unit of the pin gear tooth strip structure. Firstly, the structural parameters of each component of the system were explained, and then the finite element stress analysis of the whole component of meshing transmission was carried out to obtain the stress distribution and maximum stress point of each component. The conclusion shows that the stress of each component can meet the strength requirements. When the stress area of the rack increases, the maximum stress of the rack shows a downward trend. With the increase of pin tooth span, the bending moment becomes larger,and the maximum stress of pin tooth shows an upward trend.
作者
吴平平
孙长林
Wu Pingping;Sun Changlin(Guangdong Jingyin Marine Engineering Co.,Ltd.,Foshan,Guangdong 528000,China)
出处
《机电工程技术》
2022年第8期64-68,77,共6页
Mechanical & Electrical Engineering Technology
基金
广东省自然资源厅2020年省级促进经济高质量发展专项资金项目(编号:粤自然资合GDNRC [2020] 015号)。
关键词
挖泥船
定位桩系统
升降装置
销齿轮齿条传动
建模计算
dredger
positioning pile system
lifting device
pin gear tooth drive
modeling calculation
作者简介
第一作者:吴平平(1958-),男,高级工程师,研究领域为海洋工程和机电一体化,已发表论文5篇。
