Transmission device of any rotation angle ratio of ship flap rudder of slide block type

Abstract

The invention provides a transmission device of any rotation angle ratio of a ship flap rudder of a slide block type, comprising a main rudder blade, a main rudder shaft, a wing rudder blade and a wing rudder shaft. The main rudder shaft penetrates through a ship bottom shell by a ship bottom seal, the main rudder blade is mounted on the main rudder shaft, and the wing rudder blade is mounted on the wing rudder shaft. The transmission device also comprises a fixed guide rail, a fixed slide block, a sliding bearing, a movable slide block, a movable slideway, a hydraulic oil cylinder and a piston rod; the hydraulic oil cylinder is mounted in the ship bottom shell, and the piston rod of the hydraulic oil cylinder penetrates through the ship bottom shell to be connected with the movable slide block which is connected with the fixed slide block; a sliding bearing is mounted outside the movable slide block, the fixed slide block is mounted in the fixed guide rail, the movable slide block is mounted in the movable slideway, and the wing rudder shaft is connected with the movable slideway. The transmission device enables the flap rudder to rotate and separate from the restriction of a main rudder, improves the course control performance of a rudder system, reduces the energy consumption, improves the reliability and improves the ship navigability.

Description

(1) Technical field [0001] The invention relates to a propulsion device or a steering device of a ship. Specifically, it is a transmission device for combined control of ship flaps and rudders. (2) Background technology [0002] Two wings with the same aspect ratio and the same chord length, under the same angle of attack, the curved wing with camber has a larger lift coefficient than the wing with symmetrical section, because the effect of camber is equivalent to increasing Bigger angle of attack. The flap rudder is to divide the rudder into two parts, the main rudder and the wing rudder according to a certain ratio. Through the transmission device, an angle is formed between the main rudder and the wing rudder. In fact, it is to change a general streamlined rudder into a certain arch degrees of rudder. In a broad sense, wing rudders are equivalent to variable camber wings, which can provide greater lift at the same main rudder angle before the incoming flow separates, g...

AI Technical Summary

Problems solved by technology

However, gear transmission is used between the main rudder and the wing rudder. The volume of the gears leads to irregular structural shapes of the device, which affects the hydrodynamic performance of the ship.

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