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Rotary guide rod eccentric disc type cycloidal propeller 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: 2014-10-01
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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  • Rotary guide rod eccentric disc type cycloidal propeller mechanism
  • Rotary guide rod eccentric disc type cycloidal propeller mechanism
  • Rotary guide rod eccentric disc type cycloidal propeller mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] Combine Figure 1~4 , figure 1 The mechanism movement diagram in shows the connection relationship and movement pair type of each part of the mechanism. In the figure, the paddle assembly 101 and the paddle shaft assembly 102 are fixedly connected, and the paddle shaft assembly 102 and the chassis assembly 103 are connected through a slewing pair, and the power source drives the chassis assembly 103 to rotate at a uniform speed. The paddle shaft assembly 102 is fixedly connected with the sliding rod assembly 104. The sliding rod assembly 104 and the sliding block assembly 105 constitute a moving pair. The rotating shaft assembly 107 of the sliding block assembly 105 and the eccentric disc assembly 108 constitute a rotating pair. The eccentric disc assembly 108 and the chassis assembly 103 are connected by an Oldham coupling assembly or a parallelogram coupling assembly 109 to ensure that the angle and angular velocity of the eccentric disc assembly 108 and the chassis as...

Embodiment approach 2

[0028] Such as Image 6 with Figure 7 As shown, the mechanism that realizes the angle correspondence between the eccentric disc and the main shaft and the equal angular velocity can be realized by using a parallelogram coupling mechanism. Image 6 It is a schematic diagram of the mechanism movement of the parallelogram coupling mechanism. The upper disc, middle disc and lower disc of the parallelogram coupling mechanism are respectively O 1 , O 2 And O 3 , A 1 , A 2 , A 3 On the Hanging O 1 Up, B 1 , B 2 , B 3 In the middle plate O 2 Up, C 1 , C 2 , C 3 In the bottom O 3 Upper, the connecting rod of the upper plate and the middle plate of the parallelogram coupling is A 1 B 1 , A 2 B 2 And A 3 B 3 , The connecting rod of the middle plate and the bottom plate 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 And O at any moment 2 B 1 Parallel; similarly, B 1 C 1 O 3 O 2 Form a parallelogram, O 2 B 1 And O at any moment 3 C 1 parallel. So, Hang O 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 equal angular velocity can be realized by a synchronous belt wheel mechanism. The eccentric disc 34 and the synchronous belt wheel 40 are fixedly connected by a pin 41, and the lower rotating disc 22 is fixed to the synchronous belt wheel 49. even. The timing pulley 40 and the pin shaft 42 are connected by a bearing 43, and the pin shaft 42 is fixedly connected with the upper connecting plate 44. The timing pulley 49 and the pin shaft 46 are connected by a 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 slide in close contact with each other and rotate around the idler shaft 55. The idler shaft 55 is arranged in the air and is connected to the upper connecting plate 44 and the lower connecting plate 45 through a bearing 56. The upper...

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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 propeller device, specifically a marine propeller device. Background technique [0002] In order to improve the maneuverability of surface ships and submarines, and improve the propulsion efficiency of the propeller, various propellers with special structures have emerged. As a marine propeller, the cycloid propeller has many advantages such as high maneuverability, excellent acoustic characteristics, high propulsion efficiency, and the ability to navigate in shallow water, and has attracted the attention of relevant scientific research institutions at home and abroad. [0003] The cycloid propeller is composed of a set of straight wing blades perpendicular to the plane of rotation and a control mechanism that controls the deflection angle of the blades. Since the actual motion track of the blade is a cycloid, it is called a cycloid propeller. The key to the design of the cycloidal propeller is the blade control mechanism. In order...

Claims

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Application Information

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