Research And Design On The Traction And Proactive Release System For Underwater Winch

The hydraulic winch in the lower chamber of the underwater rescue bell is the key equipment for rescuing. Its main task is to release or recover the steel rope so as that the bell can match or detach from the wrecked submarine successfully. Based on the investigation into the windlass and steel rope winch on the spot,the reason for the steel rope being in disorder when releasing the rope has been found. Adding a proactive traction system to the matching winch is designed. And its performances are also sufficient to the requirements.On the basis of the existing problem, the paper is extended on proactive traction and steel rope release system ,including its hydraulic drive system. Main contents and technical innovations are as follows:1. Development of hydraulic winch. the application of electrical and hydraulic technology in winch, speed and tension control are described in details.2. The problem of the present match winch used in the underwater rescue bell and the schemes for releasing the steel rope proactively from the drum in two ways are introduced and compared.3. The scheme design and general layout plan of the matching hydraulic winch are presented. Detailed design,analysis and calculation of the hydraulic control are listed. Main parameter calculation,selection of the main components and their safety check are presented in the paper.4. Constant tension control system base on proactive release system is discussed and expected.Main technical innovations are as follows:1. Proactive traction system is used in matching winch of underwater rescue bell. It will solve the problem occurred when the steel rope is released from the drum and be helpful to the successful rescuing.2. Calculation for the main mechanism structure,and their safety are also being checked...