Unlock instant, AI-driven research and patent intelligence for your innovation.

Cycloidal paddle propeller

A technology of cycloidal propeller and thruster, applied in the field of power system, can solve difficult problems such as vector thrust, achieve the effect of simple structure and overcome the complexity of control system

Inactive Publication Date: 2012-07-18
NORTHWESTERN POLYTECHNICAL UNIV
View PDF7 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cycloid propeller control mechanism in this patent is relatively simple, but the guide wheel groove curve of the cam is fixed, and it is difficult to achieve instantaneously variable vector thrust

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cycloidal paddle propeller
  • Cycloidal paddle propeller
  • Cycloidal paddle propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Describe the present invention below in conjunction with specific embodiment:

[0032] This embodiment is a cycloidal propeller, including a cycloidal blade 2, a blade bracket, a cycloidal shaft 5, a driving motor 19 and an eccentric ring positioning mechanism.

[0033] Refer to attached figure 1 , the drive motor 19 is fixed in the motor housing 18, the power output end of the drive motor passes through the middle wall of the motor housing, and is connected with one end of the cycloidal paddle shaft 5 through a universal coupling 28, using The advantage of the universal joint 28 is that it can transmit high torque and allow small angular displacement deviation between the two shafts due to machining. Refer to attached figure 2 , the cycloidal paddle rotating shaft and the upper wall plate of the motor housing are matched through the rotating shaft bearing 20, and there is a rotating shaft bearing positioning flange 22 on the cycloidal paddle rotating shaft, and the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a cycloidal paddle propeller which comprises a cycloidal paddle blade, a paddle blade bracket, a cycloidal paddle rotating shaft, a driving motor and an eccentric round ring positioning mechanism. A bracket arm and a jacket are arranged on the paddle blade bracket; the jacket is in running fit with a blade main tube beam; the eccentric round ring positioning mechanism comprises a control pull rod, an eccentric rotating round ring, an eccentric hollow cylindrical positioning station and an auxiliary positioning pull rod; the eccentricity between the center axis of the eccentric rotating round ring and the center axis of the cycloidal paddle rotating shaft is implemented by the eccentric round ring positioning mechanism so as to implement the effect that the cycloidal paddle blade takes the periodical pitching motion under the control of the control pull rod, thereby generating a pull force. The invention solves the problems of great bending moment born by a blade pivot and easiness for breaking of the blade of a cantilever beam type blade mounting mode in the prior art and also solves the problem of complexity of a control system, which is caused by a mode of controlling an attack angle by an actuator by forms of electromagnet or hydraulic pressure and the like in the prior art.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a cycloid propeller. Background technique [0002] Cycloidal propellers, also known as straight-wing propellers, get their name because the trajectory of the blades is a cycloid when propelling forward. The span direction of the cycloid paddle blade is parallel to the axis of the paddle disk rotating shaft, and is installed on the paddle disk through a pivot shaft whose axis is parallel to the paddle disk rotating shaft axis, and the paddle blade can swing around the pivot shaft. As the lifting surface of the blade, its angle of attack undergoes a continuous periodic change from zero angle of attack to maximum angle of attack, and then from maximum angle of attack to zero angle of attack during the process of rotating around the rotating shaft of the blade disc. The resulting unsteady aerodynamic effect can greatly improve the aerodynamic efficiency of the cycloidal propel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/32B64C27/14
Inventor 胡峪唐继伟宋笔锋宋文萍
Owner NORTHWESTERN POLYTECHNICAL UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com