海洋钻井平台大功率行星传动绞车设计

Design of High-Power Planetary Drive Winch for Offshore Drilling Platform

为满足海洋钻井平台对钻机设备的要求,设计一种大功率行星传动绞车。该绞车采用交流变频电机驱动,交流变频电机无级调速的特点使绞车变速系统大大简化;行星传动减速器在相同传动比下结构更加紧凑,进一步缩小了钻机绞车体积。通过绞车额定功率,选择电机型号,对滚筒参数进行设计。在此基础上,完成绞车整体结构布局设计。从行星齿轮配齿计算中的四个条件出发,计算得到各齿轮参数。最后,利用Soildworks软件对行星齿轮进行三维建模,并将该模型导入Ansys Workbench中进行静力学分析,分析表明:行星齿轮啮合时最大位移出现在太阳轮和行星轮啮合处,最大应力位置为太阳轮齿根处。

In order to meet the requirements of offshore drilling platforms for drilling rig equipment,a high-power planetary drive winch is designed in this article.The drawworks is driven by an AC variable frequency motor,and the stepless speed regulation of the AC variable frequency motor greatly simplifies the speed change system of the drawworks;the planetary drive reducer has a more compact structure under the same transmission ratio,which further reduces the volume of the rig drawworks.Through the rated power of the winch,the motor model is selected and the drum parameters are designed;on this basis,the overall structure layout design of the winch is completed.Starting from the four conditions in the calculation of planetary gears,the gear parameters are calculated.Finally,the three-dimensional modeling of the planetary gear is carried out by using the Soildworks software,and the model is imported into the Ansys Workbench for static analysis.The analysis result shows that the maximum displacement occurs when the planetary gear meshes at the meshing position of the sun gear and the planetary gear,and the maximum stress position is at the root of the sun gear.