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A marine adjustable pitch propeller control device driven by shape memory alloy

A memory alloy and control device technology, used in ship construction, ship propulsion, ship parts, etc., can solve problems such as difficult maintenance and complex mechanical structure, and achieve the effects of good corrosion resistance, simple operation, and easy maintenance.

Active Publication Date: 2020-04-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of complex mechanical structure and difficult maintenance of the adjustable pitch control device in the prior art, the present invention provides an adjustable pitch control device based on intelligent materials with simple structure and convenient maintenance

Method used

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  • A marine adjustable pitch propeller control device driven by shape memory alloy
  • A marine adjustable pitch propeller control device driven by shape memory alloy
  • A marine adjustable pitch propeller control device driven by shape memory alloy

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Embodiment Construction

[0035]In order to illustrate the present invention more clearly, the implementation of the present invention will be further described below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0036] like figure 1 As shown, the controllable pitch propulsion system is mainly composed of a controllable pitch propeller control device 101, a propeller hub 102 and a transmission shaft 103, and a plurality of controllable pitch propeller control devices 101 are arranged on the propeller hub 102 at intervals. The number of installed propeller control devices 101 is 3-6. One end of the transmission shaft 103 is connected to the propeller hub 102, and the other end is connected to the driving motor; the pitch adjustment of the propeller is performed by an adjustable pitch propeller control device 101 driven by a shape memory alloy.

[0037] like figure 2 As shown, the controllable pitch propeller control device 101 i...

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Abstract

The invention discloses a shape memory alloy drive marine adjustable-pitch propeller control device. The device is mainly composed of a paddle, a rotation mechanism and a fixing chassis, one end of the rotation mechanism is connected with the paddle, and the other end of the rotation mechanism is connected with the fixing chassis; a rotary disc is provided with two limiting grooves, and the limiting grooves are perpendicular to the disc face of the rotary disc and are formed along the two ends of the diameter of the disc face of the rotary disc; one spring fixing groove is formed, is perpendicular to the disc face of the rotary disc and is located in the edge of the disc face of the rotary disc and formed between the two limiting grooves; limiting screws are arranged in the two limiting grooves; multiple spring fixing screws are arranged in the spring fixing groove; at least one stainless steel spring containing groove and at least one SMA spring containing groove are formed between one of the two limiting grooves and the spring fixing groove; and stainless steel springs and SMA springs are arranged in the stainless steel spring containing grooves and the SMA spring containing grooves. Through change of the size parameters of the SMA springs, the service performance of the device can be controlled, and maintenance and part replacement are convenient.

Description

technical field [0001] The invention relates to a marine propeller pitch adjusting device, in particular to a shape memory alloy-driven adjustable pitch propeller adjusting device, which belongs to the application field of intelligent materials and intelligent equipment. Background technique [0002] Propellers can be divided into fixed-pitch propellers and controllable-pitch propellers, which are an important part of the ship's propulsion device and are installed at the stern of the ship. The propeller consists of a hub and blades, the hub is a frustoconical body, and a fairing is added at the rear end; from the tail end of the ship to the head end, the blade surface seen is the pressure surface, and the other side of the blade is the suction force Each surface is composed of blade root area, blade tip area, leading edge and trailing edge. The helical line segment surrounds the cylindrical surface, and the axial distance between the two ends of the line segment is called t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H3/00
Inventor 袁斌刘凯李雨田周雪峰朱敏
Owner SOUTH CHINA UNIV OF TECH
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