Spring damper based hoisting system stabilization cable tensioning device

Abstract

The invention discloses a spring damper based hoisting system stabilization cable tensioning device which is characterized by comprising at least three spring dampers which are uniformly distributed in an axial direction of a hoisting system and safety locks for limiting over-stretching of the spring dampers respectively; and an included angle between the axis of each spring damper and a directionof a lifting force applied to the hoisting system is larger than 0 degree and less than 90 degrees. By adopting the spring damper based hoisting system stabilization cable tensioning device, the length of a spring can be adjusted in time according to a change of the tension of a stabilization cable so as to ensure that the stabilization cable is always in a tensioned state; different spring dampers can be flexibly selected according to different hoisted weights and different natural conditions, so that a certain stabilization effect can be achieved, the spring dampers can be protected from being damaged, and high-frequency vibration of the hoisting system can be eliminated at the same time; and the spring damper based hoisting system stabilization cable tensioning device is simple in structure and convenient to assemble and disassemble, and can be used flexibly.

Description

Technical field [0001] The invention discloses a design structure for anti-rolling of a novel ship crane, and a tensioning device for anti-rolling cables of a hoisting system based on a spring damper, belonging to the field of mechanical engineering. Background technique [0002] Under various sea conditions, when the crane lifts heavy objects, due to natural factors such as sea wind and waves, ship cranes will produce sway, sway, sway, roll, pitch, and sway six directions The movement of the heavy object will cause the heavy object to shake during the lifting process, which makes it difficult or impossible for the crane to complete the lifting work, and it may cause danger in severe cases. Most of the original anti-rolling devices use anti-rolling cables. Due to the elasticity of the anti-rolling cables and the inherent time lag of the hydraulic winch, it is inevitable that there will be a loose rope phenomenon when the anti-rolling cable is retracted and released, which will ca...

AI Technical Summary

Problems solved by technology

[0002] When the marine crane is working under various sea conditions, when the crane lifts heavy objects, due to natural factors such as sea wind and waves, there will be six directions of sway, surge, yaw, roll, pitch and heave. The movement of the heavy object will cause the heavy object to shake during the lifting process, which makes it difficult or impossible for the crane to complete the lifting work, and may cause danger in severe cases

Most of the original anti-sway devices use anti-sway cables. Due to the elasticity of the anti-sway cables and the inherent time lag of the hydraulic winch, it is inevitable that there will be loose ropes when the anti-sway cables are retracted and retracted, which will lead to the failure of the hoisting system. High-frequency vibration, which seriously affects the flexibility of hoisting operations

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