Steering device of water jet propeller

Abstract

The invention provides a steering device of a water jet propeller, and belongs to the field of ship propelling devices. The steering device comprises a steering nozzle, a fluted disc, a rack and a hydraulic oil cylinder; the steering nozzle is provided with a nozzle water inlet installed on the water outlet of the water jet propeller and a nozzle water outlet communicated with the nozzle water inlet; the fluted disc is fixedly connected with the steering nozzle; the axis of the fluted disc is perpendicular to and intersects with the axis of the nozzle water outlet; the rack is meshed with thefluted disc; the hydraulic oil cylinder comprises a piston rod and a cylinder body used for being fixed to the water jet propeller; the first end of the piston rod is arranged in the cylinder body ina sliding mode; and the second end of the piston rod is coaxially connected with the first end of the rack. A whole process is completed through driving of one hydraulic oil cylinder, cooperation of the two hydraulic oil cylinders is not involved, and therefore, reliability is high, implementation cost is low. The device is particularly suitable for ships sailing at a high speed.

Description

technical field [0001] The present disclosure relates to the field of ship propulsion devices, in particular to a steering device of a water jet propulsion device. Background technique [0002] The water jet propulsion is a kind of propulsion tool of the ship, which propels the ship together with the ship's power plant. The jet part of the propulsion mechanism of the water jet propeller is immersed in water, and the reaction force generated by the jet water is used to drive the ship forward, and the steering device changes the jet direction of the water flow to realize the steering of the ship. [0003] In the related art, the steering device includes a steering nozzle, a steering cover, a steering handle and two hydraulic cylinders. The steering cover is fixed outside the water outlet of the water jet propeller, and the steering nozzle is rotatably installed on the water outlet of the water jet propeller and protrudes from the steering cover. The middle part of the steeri...

AI Technical Summary

Problems solved by technology

[0005] The rotation of the steering handle is realized by the cooperation of two hydraulic cylinders. If the telescopic lengths of the piston rods of the two hydraulic cylinders do not match, it will cause problems in the rotation of the steering handle, and the water jet propeller cannot turn normally.

For ships sailing at high speed, water jets cannot turn normally, which may cause the risk of the ship hitting bridges and other ships

Therefore, the steering device in the related art is unreliable

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