Modular water-jet propulsion steering and backward navigation mechanism

A water-jet propulsion and modularization technology, which is applied in the direction of jet steering, steering gear, ship parts, etc., can solve the problems of scrapping guide vane castings and increasing the risk of water-jet propulsion device running vibration, etc. Dismantling time, reduction of vibration risk, and mechanism simplification

Active Publication Date: 2019-11-22
708TH RES INST OF CSSC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, the above-mentioned cantilever structure increases the risk of vibration of the water jet propulsion device; The casting structure, the use of the above cantilever structure also increases the risk of scrapping the guide vane casting

Method used

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  • Modular water-jet propulsion steering and backward navigation mechanism
  • Modular water-jet propulsion steering and backward navigation mechanism
  • Modular water-jet propulsion steering and backward navigation mechanism

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also belong to the scope of the present invention as long as they conform to the gist of the present invention.

[0037] In the preferred embodiment of the present invention, based on the current situation that the water-jet propulsion steering and reversing mechanism has various specifications, the interface with the water-jet propulsion pump is complicated, and the assembly and disassembly are difficult, a modular water-jet propulsion mechanism is now provided. Steering reversing mechanism, such as figure 1 , figure 2 and image 3 shown, including:

[0038] The steering reversing mechanism bracket 1 is used to fix the water jet propulsion steering reversing mechanism;

[0039] The rudder 2 is connected to the steering reversing mechanism bracket 1 through ...

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Abstract

The invention provides a modular water-jet propulsion steering and backward navigation mechanism, and relates to the technical field of ship propulsion. The mechanism comprises a steering and backwardnavigation mechanism bracket for fixing a water-jet propulsion steering and backward navigation mechanism; a rudder which is connected with the steering and backward navigation mechanism bracket through a first pin shaft and is used for moving left and right around the first pin shaft under the driving of a steering oil cylinder arranged in the rudder, so that the jet water flow is reversely folded towards the side to realize steering; a reversing vehicle door which is connected with the rudder through a second pin shaft and used for achieving the ahead function in the open state and enablingthe jet water flow to be reversely folded towards the ship bottom in the closed state so as to achieve backward navigation; and an auxiliary rudder plate which is installed on the rudder through a fastener and used for rotating along with the rudder so as to improve the rudder effect. Through modularization of the water jet propulsion steering and backward navigation mechanism, the specificationnumber of the mechanism is reduced, the design and machining cost is reduced, and the machining period is shortened; the assembling and disassembling difficulty is effectively reduced; the processingdifficulty and the rejection rate of the guide vane body are reduced; and product reliability is improved.

Description

technical field [0001] The invention relates to the technical field of ship propulsion, in particular to a modularized water jet propulsion steering reversing mechanism. Background technique [0002] Water-jet propulsion is an important ship propulsion technology. The reaction force of the high-speed water flow ejected by the propulsion pump in the water-jet propulsion device is used to push the water carrier forward, and the carrier is manipulated by distributing and changing the direction of the jet flow through the steering reversing mechanism. Compared with traditional propulsion methods, water jet propulsion has the advantages of excellent maneuverability, strong cavitation resistance, high propulsion efficiency, simple transmission shafting, low vibration and environmental protection, so it is widely used in high-performance ships. [0003] The existing small and medium power water jet propulsion steering and reversing mechanism mainly includes a rudder and a reversing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H25/46
CPCB63H25/46B63H2025/465
Inventor 李贵斌孟堃宇王俊翟志红张岩常书平
Owner 708TH RES INST OF CSSC
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