Intelligent electrically-driven cable arranging device of marine winch

Abstract

The invention discloses an intelligent electrically-driven cable arranging device of a marine winch. The device is that two groups of three-phase asynchronous motors are respectively connected with a power supply through transducers and are connected with a main shaft of a roller through a planetary gear; a permanent magnet synchronizing motor drives a rolling lead screw supported by a bearing to rotate by speed reduction through a speed reducer; the rolling lead screw drives a cable guide wheel to move leftwards and rightwards on a guide rail; a cable is arranged on the roller through a cable width sensor and the cable guide wheel; a first proximity switch and a second proximity switch are respectively mounted at two ends of the rolling lead screw; signals detected by a roller rotating speed detecting photoelectric encoder, a motor rotating speed photoelectric encoder and a photoelectric encoder are respectively input to an intelligent controller; the intelligent controller controls the working states of the three-phase asynchronous motors and the permanent magnet synchronizing motor. The device has the advantages of being good in cable arranging effect, reliable to work, high in real-time performance, automatic to adjust the working state according to the cable width, and capable of continuously working under a complex marine working environment.

Description

technical field [0001] The invention belongs to the design field of marine winch auxiliary equipment, and in particular relates to a variable-frequency electric drive deep-sea marine winch cable puller with active heave compensation function. Background technique [0002] Compared with the winches widely used on land, marine winches have stricter requirements on cable discharge performance than those widely used on land. [0003] However, the prior art has the following problems: [0004] (1) The single-drum integrated winch currently used widely adopts the parallel cable arrangement mechanism. The single-drum integrated winch has the advantages of small stress on the cable arrangement mechanism and simple system structure in shallow sea surveys. Continuously expanding, the cables stored on the drum are as long as 3,000-10,000 meters, and there are as many as 20 layers of cables, which leads to the inability of the cables to be evenly and neatly arranged on the drum, so the...

AI Technical Summary

Problems solved by technology

[0004] (1) The single-drum integrated winch currently used widely adopts the parallel cable arrangement mechanism. The single-drum integrated winch has the advantages of small stress on the cable arrangement mechanism and simple system structure in shallow sea surveys. Continuously expanding, the cables stored on the drum are as long as 3,000-10,000 meters, and there are as many as 20 layers of cables, which leads to the inability of the cables to be evenly and neatly arranged on the drum, so the traditional conventional parallel cable arrangement cannot be well satisfied. The needs of deep sea survey work

[0005] (2) The reciprocating two-way screw type winch cable unloader is a common automatic winch cable unloader at present. It drives the guide roller to move on the screw rod through a chain or gear, which takes up a lot of space and the reduction ratio of the gear is not fixed. It can only be applied to cables of one diameter, and there is no self-adaptive ability to the diameter of the cable. It is easy to cause impact on the structure of the winch during the cable process

[0006] (3) The control algorithm of the traditional cable controller generally adopts the conventional proportional open-loop control method, and there is a steady-state error relative to the rotation of the drum when the cable is synchronously discharged, and the anti-interference ability is poor

In the actual use process, the effect of cable arrangement cannot always achieve a perfect cable arrangement effect, and there are still frequent cable jumping, stacking cables, cable extrusion and other uneven cable arrangement.

[0007] (4) With the gradual improvement of the performance index requirements of the marine winch for the cable arrangement system, the requirements for the real-time and response performance of the cable arrangement system are also getting higher and higher. The traditional electric drive cable arrangement system is mostly based on a single-chip computer with general performance , in the new application environment, it is inevitable to expose the problems of simple function, slow speed, and poor real-time performance in the cable discharge system. It is easy to produce impact, out of step, overtravel or oscillation when starting, stopping and changing speed

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