Paddle fan blade mounting device

By designing the paddle fan blade installation device, the combination of rotating seat and wheel hub is used to solve the difficulties in the installation and decomposition of the paddle fan blades, the rapid disassembly and assembly of the blades and simplified operation, and the economics of the engine are improved.

CN222633284UActive Publication Date: 2025-03-18AECC COMML AIRCRAFT ENGINE CO LTD
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Patent Information

Application Number
CN202421370915.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-14
Publication Date
2025-03-18
Estimated Expiration
2034-06-14

AI Technical Summary

Technical Problem

The paddle fan blades of the paddle fan engine have difficulties in the installation and decomposition process, especially when replacing the blades, the cap cover and mounting seat need to be decomposed, and frequent decomposition is not conducive to the service life of the threaded connection structure.

Method used

A paddle fan blade installation device is designed, including a rotating seat and a wheel hub. The rotating seat is equipped with a tongue and groove for fixing the paddle fan blades. The wheel hub is equipped with a mounting groove for the tenon head to enter and exit the tongue and groove, realizing the rapid disassembly and assembly of the blades.

Benefits of technology

Through this device, the disassembly and assembly of the paddle fan blades does not require disassembly or rotary seats, which simplifies operation, reduces labor time, improves the economy of the engine, and extends the service life of the threaded connection structure on the cap and mount.

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Abstract

A paddle fan blade mounting device is used for improving the condition that paddle fan blades are inconvenient to disassemble and assemble. The paddle fan blade mounting device comprises a rotating seat and a hub; the rotating seat is provided with a mortise, and the mortise is used for being connected with a tenon of a paddle fan blade in an inserted mode so as to fix the paddle fan blade. The hub receives and rotatably supports the rotating seat and is provided with a mounting groove, the mounting groove is used for being communicated with the first opening of the mortise so as to allow a tenon of a paddle fan blade to enter and exit from the mortise through the mounting groove, and the mounting groove is provided with a second opening in the periphery of the hub so as to allow the tenon of the paddle fan blade to enter and exit from the mounting groove.
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