Flexible parallel drive device for ship propeller swing and rotation

Abstract

The invention relates to a flexible parallel drive device for ship propeller swing and rotation. The flexible parallel drive device comprises a propeller, a parallel propeller swinging mechanism, a rotary driver and a flexible shaft coupling, wherein the parallel propeller swinging mechanism comprises a machine base, a moving table, a middle SP-type constraint branch, two SPS-type drive branches and an SPR-type drive branch and realizes swinging and axial movement of the propeller along with the middle constraint branch around a ball pair at the center of the machine base; the rotary driver comprises an engine and a main shaft; the flexible shaft coupling comprises two flange plates and a group of rope traction components; the two flange plates are respectively and fixedly connected with the main shaft and one end of the middle constraint branch; the rope traction components are circumferentially, uniformly and flexibly connected with the two flange plates; the rotary driver drives the middle constraint branch to drive the propeller to rotate through the flexible shaft coupling. The flexible parallel drive device provided by the invention has the benefits that the structure is simple and compact, the propeller is flexible to rotate and swing, the rotary driver is good in stability, small in vibration and easy to control, and a swinging rudder drive mechanism and a swinging rudder control system are not required.

Description

technical field [0001] The invention belongs to the technical field of ships, in particular to a ship propeller driving device. Background technique [0002] Ship propeller movement driving device is a key component of submarine and ship navigation. Usually the ship propeller is coaxially installed at one end of the rotating shaft, the rotating shaft is supported by a slewing bearing fixed at the lower end of the hull, and the other end of the rotating shaft is connected with the driving device fixed on the hull. The propeller and the control system of the rudder mechanism work together to push the ship forward and change direction. In this regard, domestic and foreign engineering and technical personnel have made some improvements and researches. The invention patent with the publication number of CN104527962A in 2015 discloses a flexible steering ship driving device. The rod is supported on the surrounding rod, the whole rotating rod is outside the hull, and the lower en...

AI Technical Summary

Problems solved by technology

[0003] The devices and ideas of the above inventions have their own characteristics, but the rudder drive mechanism and rudder control system are still very complicated, and they generate relatively large resistance in water. They are prone to failure due to rust in seawater for a long time

In order to meet the lifting and lowering requirements of the submarine, a multi-swing rudder drive mechanism is also required, and the corresponding multi-swing rudder drive mechanism and its control system are more complicated.

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