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Rotating guide rod eccentric disc type cycloid thruster mechanism

A technology of cycloid propeller and eccentric disc, which is applied in the direction of non-rotating propulsion elements, mechanical gear transmission, etc., can solve the problems of blade motion law and arbitrary adjustment of the magnitude and direction of propulsion force, and achieve large eccentricity Effect

Active Publication Date: 2016-08-17
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current blade deflection control mechanisms cannot achieve the optimal blade motion law and the arbitrary adjustment of the magnitude and direction of the propulsion force

Method used

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  • Rotating guide rod eccentric disc type cycloid thruster mechanism
  • Rotating guide rod eccentric disc type cycloid thruster mechanism
  • Rotating guide rod eccentric disc type cycloid thruster mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] combine Figure 1~4 , figure 1 The schematic diagram of the mechanism motion in the figure shows the connection relationship and motion pair type of each part of the mechanism. In the figure, the paddle assembly 101 is fixedly connected to the paddle shaft assembly 102, and the paddle shaft assembly 102 is connected to the chassis assembly 103 through a rotary pair, and the power source drives the chassis assembly 103 to rotate at a constant speed. The paddle shaft assembly 102 is fixedly connected with the slide bar assembly 104, and a moving pair is formed between the slide bar assembly 104 and the slider assembly 105. The rotary shaft assembly 107 of the slider assembly 105 and the eccentric disk assembly 108 form a rotary pair, and the eccentric disk assembly 108 and the chassis assembly 103 are connected by an Oldhams coupling assembly or a parallelogram coupling assembly 109 to ensure that the angle and angular velocity of the eccentric disc assembly 108 and the ...

Embodiment approach 2

[0028] Such as Image 6 and Figure 7 As shown, the mechanism that realizes the angle correspondence between the eccentric disc and the main shaft, and the angular velocity is equal can be realized by using a parallelogram coupling mechanism. Image 6 is a schematic diagram of the mechanism movement of the parallelogram coupling mechanism, the upper plate, the middle plate and the lower plate of the parallelogram coupling mechanism are respectively O 1 , O 2 and O 3 , A 1 、A 2 、A 3 On the plate O 1 up, B 1 , B 2 , B 3 In the middle disk O 2 up, C 1 、C 2 、C 3 In the lower plate O 3 Upper, the connecting rod of the upper disc and the middle disc of the parallelogram coupling is A 1 B 1 、A 2 B 2 and A 3 B 3 , the connecting rod between the middle disc and the lower disc is B 1 C 1 , B 2 C 2 and B 3 C 3 . A 1 B 1 o 2 o 1 form a parallelogram, O 1 A 1 at any time with O 2 B 1 parallel; similarly, B 1 C 1 o 3 o 2 form a parallelogram, O 2 B 1...

Embodiment approach 3

[0032] Such as Figure 5 As shown, the mechanism that realizes the angle correspondence between the eccentric disc and the main shaft, and the angular velocity is equal can be realized by using a synchronous pulley mechanism. even. The synchronous pulley 40 is connected with the pin shaft 42 through the bearing 43, and the pin shaft 42 is fixedly connected with the upper connecting plate 44. The synchronous pulley 49 is connected with the bearing pin 46 through the bearing 47, and the pin shaft 46 is fixedly connected with the lower connecting plate 45. The upper connecting plate 44 and the lower connecting plate 45 fit and slide together, and rotate around the idler shaft 55 , the idler shaft 55 is suspended and connected with the upper connecting plate 44 and the lower connecting plate 45 through bearings 56 . The upper end of the idler shaft 55 is connected with a synchronous pulley 57, and the relative rotation is limited by a key 58 between the two. The lower end of th...

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PUM

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Abstract

The invention aims at providing a rotary guide rod eccentric disc type cycloidal propeller mechanism. The blade deflecting motion law of the According to the rotary guide rod eccentric disc type cycloidal propeller mechanism meets the normal intersection law, namely, the chord of every blade is perpendicular to a certain fixed point of a rotating plane at any time, wherein the fixed point is named as an eccentric point, and the distance between the eccentric point and a rotating center is named as an eccentric distance; the propelling force of a propeller is proportional to the eccentric distance , the propelling direction of the propeller is perpendicular to the connecting line of the eccentric point and the rotating center. According to the rotary guide rod eccentric disc type cycloidal propeller mechanism, the propelling force of the propeller can be adjusted by rotating a screw, the propelling direction of the propeller can be adjusted by rotating a worm, and a relatively large eccentric ratio can be achieved by moving a control point at a relatively small distance due to the amplification effects of an eccentric disc.

Description

technical field [0001] The invention relates to a thruster device, in particular to a marine propeller device. Background technique [0002] In order to improve the maneuverability of surface ships and submarines and increase the propulsion efficiency of propellers, various propellers with special structures have emerged as the times require. As a marine propeller, the cycloidal propeller has attracted the attention of relevant scientific research institutions at home and abroad because of its high maneuverability, excellent acoustic characteristics, high propulsion efficiency and the ability to navigate in shallow water. [0003] The cycloid propeller consists of a set of straight wing blades perpendicular to the plane of rotation and a control mechanism to control the deflection angle of the blades. Since the actual motion trajectory of the blades is a cycloid, it is called a cycloid propeller. The key to the design of the cycloid propeller lies in the control mechanism o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H1/30B63H23/02
Inventor 张洪雨赵文德贾瑞栋刘杨
Owner HARBIN ENG UNIV