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Propulsion system protection method and a propeller

A propulsion system and propeller technology, applied in the direction of rotating propellers, rotary propellers, etc., can solve problems such as blade deformation and damage, and achieve the effect of reducing the difficulty of replacement and repair

Inactive Publication Date: 2019-01-18
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a general ship is sailing, the blades of the propeller will be damaged by the load. Under this load, the blades will not break, but will be locally deformed, which will damage other parts of the propulsion system connected to the propeller, such as the shafting of the main engine And shaft bracket, after such parts are damaged, the difficulty of replacement and repair is far greater than that of the propeller, and due to the deformation of the propeller, the propeller still needs to be repaired

Method used

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  • Propulsion system protection method and a propeller
  • Propulsion system protection method and a propeller

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Embodiment Construction

[0022] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...

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Abstract

The invention discloses a propulsion system protection method and a propeller, wherein, the propulsion system protection method comprises: providing a propeller and a shafting, opening a groove at theroot of a blade of the propeller, filling a filling part in the groove, and then mounting the propeller on the shafting. By making grooves at the root of the blade of the propeller, The strength of the blade root can be reduced, and the blade can be broken first if the resistance is large during the rotation of the propeller, so as to prevent the destructive force of the high resistance to the propeller from being transmitted to the shaft system or the shaft bracket, effectively protecting the shaft system and the shaft bracket, and reducing the difficulty of replacement and repair of the propulsion system; By filling the grooves with fillers, the strength of the roots of some blades can be repaired, and the blade surface can be smoothed so that the resistance of the blade surface does not change.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a method for protecting a propulsion system and a propeller. Background technique [0002] The propulsion system of a ship generally includes the main engine, the shafting of the main engine, the shaft support and the propeller. Usually, the propeller of the ship is made of copper-nickel alloy castings, and the strength generally needs to meet the requirements of being able to bear the corresponding load. The requirements of the blade shape make the strength of the root of the blade far exceed the requirements. When a general ship is sailing, the blades of the propeller will be damaged by the load. Under this load, the blades will not break, but will be locally deformed, which will damage other parts of the propulsion system connected to the propeller, such as the shafting of the main engine And the shaft bracket, after such parts are damaged, the difficulty of replacement and rep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/26
CPCB63H1/26
Inventor 张天平茆海
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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