结合规范,对插销升降系统的主要工况、结构材料及安保功能进行了分析,确定了插销升降系统的主要计算工况、强度校核基本原则、结构材料选型原则及重要的安保功能,对插销升降系统的总体设计具有重要的指导意义.

The leakproofness of revolving end face of the deep underwater mooring winch is usually poor.A dynamic sealing unit was developed for revolving end face of the mooring winch.The physical models of static sealing ring and dynamic sealing ring in this unit were established to simulate the deformation, stress and contact gap of the sealing ring under different pressure.The technique feasibility of the dynamic sealing unit for revolving end face of mooring winch was verified.

The jacking system and torque sensor of jack-ups was expatiated.For large tonnage climb pinion sensor, the calibration device was complicated and expensive, a new way for calibration was set forth by using classification society type test equipment to calibrate.The principle of the calibration method was elaborated.The method has been applied successfully in an actual electric jacking system project.

Aiming at the reason that the cutting piece distorts in CNC flame cutting machine,the distortion of the windlass brake band cutting piece is analyzed in the paper.And the distortion control of the windlass brake band is elaborated in detail.