Blade pitch feedback mechanism

Abstract

The invention discloses a blade pitch feedback mechanism which comprises a bearing seat assembly, a connecting plate assembly, a connecting frame, a long feedback rod, a joint, a supporting seat, a short feedback rod and the like. The connecting frame is hinged to the connecting plate assembly, and the hinged position serves as a rotating fulcrum of the connecting frame; one end of the connectingframe is connected with the bearing seat assembly, the other end of the connecting frame is hinged to the long feedback rod, the other end of the long feedback rod is hinged to the short feedback rod,and the short feedback rod penetrates through the supporting seat; according to the scheme, the change of the pitch is fed back through a lever mechanism; the spatial layout is more compact, and thefeedback precision of the pitch of the blades is higher; the connecting frame can adopt a right-angled structure, so that the transmission direction of the pitch is skillfully changed, and the space is further saved; due to a joint connection mode of the bearing seat assembly and the connecting frame, the spatial degree of freedom of the bearing seat assembly is properly released and constrained,and the operation flexibility of the whole mechanism is well guaranteed.

Description

technical field [0001] The invention relates to a blade pitch feedback mechanism of a controllable pitch propeller, which belongs to the field of marine propellers. Background technique [0002] In the field of marine propellers, controllable pitch propeller devices all need a blade pitch feedback mechanism, so that the crew, commissioning and maintenance personnel, etc. can understand the pitch of the underwater propeller blades. In the controllable pitch propeller device, the design of the blade pitch feedback mechanism is relatively complicated due to the long distance between the blade and the feedback display, the complicated path, and the limited internal space. [0003] Therefore, it is very important to design a controllable pitch propeller blade pitch feedback mechanism with reliable function, high precision, sensitive feedback and reasonable layout; the traditional pitch feedback mechanism adopts sprocket chain transmission, and the feedback accuracy is relatively ...

AI Technical Summary

Problems solved by technology

In the controllable pitch propeller device, the design of the blade pitch feedback mechanism is relatively complicated due to the long distance between the blade and the feedback display, the complicated path, and the limited internal space

[0003] Therefore, it is very important to design a controllable pitch propeller blade pitch feedback mechanism with reliable function, high precision, sensitive feedback and reasonable layout; the traditional pitch feedback mechanism adopts sprocket chain transmission, and the feedback accuracy is relatively low. Feedback mechanism requires more space

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