Winch lifting and standing system for rocket offshore launching station frame and lifting and standing control method of winch lifting and standing system

Abstract

The invention relates to a winch lifting and standing system for a rocket offshore launching station frame and a lifting and standing control method of the winch lifting and standing system. The winchlifting and standing system comprises a lifting and standing unit and a buffer unit, wherein the lifting and standing unit comprises a winch, a lifting and standing steel wire rope, a lifting and standing pulley and a connecting ring; the buffer unit comprises a supporting arm, a buffer pulley, a reversing pulley, limiting rods, a buffer steel wire rope, a pendant and a butt joint arm, two limiting plates are fixed on the supporting arm, limiting clamping grooves are formed in the left sides of the two limiting plates, the limiting rods are located in the limiting clamping grooves in the twolimiting plates, the limiting rods are connected with one end of the buffer steel wire rope, the other end of the buffer steel wire rope bypasses the reversing pulley and the buffer pulley to be connected with the pendant, the butt joint arm is fixed on a lifting and standing frame, two butt joint plates are fixed at the upper end of the butt joint arm, butt joint clamping grooves are formed in the upper sides of the two butt joint plates. The winch lifting and standing system has the advantages of being simple in structure and stable in action, safe and reliable, good in buffering effect andhigh in adaptability. The lifting and standing control method has the advantages of being simple in process, easy to implement and high in safety.

Description

technical field [0001] The invention relates to an erecting system, in particular to a hoisting and erecting system and an erecting control method for a rocket launch platform at sea. Background technique [0002] In the field of rocket launching, the launch platform is usually designed to be composed of a fixed frame and a vertical frame, and the two are hinged through the rotary shaft, so that the quiver assembly (the combination of the rocket and the launch tube) is hoisted and fixed on the vertical frame. on the frame, and through the erecting system, the erecting frame is rotated around the rotary axis to complete the erecting action of the rocket. For the traditional land launch platform, the actuator of the erection system usually adopts a hydraulic cylinder, because the hydraulic cylinder is a two-force rod structure, which can provide both pulling force and thrust force, and the speed can be controlled by the hydraulic damping buffer structure to achieve smoothness ...

AI Technical Summary

Problems solved by technology

However, for sea launch rigs, due to the limitation of the distance between the rotary axes and the space of the launch ship, the hydraulic cylinder is no longer suitable as the actuator of the erection system, and the dynamic environment at sea is relatively complex, so the hydraulic cylinder cannot be redundantly backed up, and the safety is poor

In response to this problem, the offshore launch platform usually adopts a flexible steel cable erection system, but the existing flexible steel cable erection system has the following problems in the implementation and application: because the flexible steel cable can only provide one-way tension, it cannot provide feedback. In the process of erection, when the overall center of mass of the erection frame and quiver assembly crosses the vertical plane where the rotary shaft is located, a stall phenomenon will occur, which seriously affects the safety of the rocket and the launch platform. If a mechanical limit mechanism is used to control Stall, there will be an impact between the parts that are in contact, which can also cause damage to the quiver assembly or launch stand

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