Crank-slider type vane oscillating mechanism and straight-wing propeller comprising same

Abstract

The invention discloses a crank-slider type vane oscillating mechanism and a straight-wing propeller comprising the same. The crank-slider type vane oscillating mechanism comprises a control rod, a connecting frame, guide rods, a boss, a support frame structure and a connecting rod, wherein the boss and the support frame structure are fixed on a rotary disk, and the connecting rod is connected between the adjacent two frame arms of the connecting frame and the support frame structure; a sliding block sliding along a long groove of each guide rod is arranged at the outer end of each frame arm of the connecting frame, and the outer end of each guide rod is vertically and fixedly connected with the main shaft of a vane; the main shaft of the vane rotationally and vertically penetrates into the rotary disk; under the rotating action of two steering engines, the control rod does a lever motion by taking a second joint bearing in the middle of the control rod as a supporting point, and the lower end of the control rod is mounted in the center of the connecting frame through a first joint bearing and forms a control point N; when the rotary disk drives the vanes to revolute, a crank slider structure drives all the vanes to rotate; the crank slider structure is combined with the guide rods, and therefore the magnification of eccentric distance of the straight-wing propeller is realized.

Description

technical field [0001] The invention relates to a crank slider type vane swing mechanism and a straight-wing propeller for ships including the mechanism. Background technique [0002] Straight-wing propeller is a kind of propulsion equipment with vertically installed rotary axis, which can quickly change the magnitude and direction of thrust at all angles, and realize the movement of the ship in all directions. Compared with the traditional helical propeller, the straight-wing propeller has the advantages of large hydraulic cross-sectional area, small water flow rotation loss, convenient operation, and fast response, which can greatly improve the flexibility and operability of the ship. [0003] To realize the function of a straight-wing propeller, the most important thing is to design a blade swing mechanism that meets the needs. Chinese patent 201310744655.5 "Blade swing mechanism and cycloid propeller for ships including this mechanism" uses a connecting rod structure to ...

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Problems solved by technology

[0003] To realize the function of a straight-wing propeller, the most important thing is to design a blade swing mechanism that meets the needs. Chinese patent 201310744655.5 "Blade swing mechanism and cycloid propeller for ships including this mechanism" uses a connecting rod structure to realize cycloid movement , but there are many structural components, and the realization of the structure is complex

Chinese patent 201410158236.8 "Crank-slider hydraulically driven cycloidal propulsion mechanism" adopts the combination of hydraulic mechanism and crank-slider structure to realize cycloidal motion, but the hydraulic system is not convenient to use, difficult to maintain, and the working noise is relatively large, and the action response is real-time Difference

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