Casing of tail speed reducer, manufacturing method of casing, tail speed reducer and aircraft
By employing a structure combining a skeleton body and composite materials in the tail gearbox, and manufacturing it using 3D printing and thermoplastic molding technologies, the problems of the tail gearbox's large weight and high processing difficulty were solved, achieving a balance between lightweight and rigidity, and improving the aircraft's performance.
CN122276158APending Publication Date: 2026-06-26NINGBO ZHONGKE XIANGLONG LIGHTWEIGHT TECH CO LTD
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Patent Information
- Application Number
- CN202411951198.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
The complex shape and material selection limitations of the tail reducer's casing result in high mass and difficult processing, which is not conducive to the design of a lightweight transmission system.
Method used
The structure combines a skeleton body with a composite material. The skeleton body is made of metal, and the composite material is filled into the cavity through the first through hole. The liner is made of metal and is embedded in the inner circumference of the skeleton connector. The structure is manufactured using 3D printing and thermoplastic molding technology.
Benefits of technology
The weight of the casing was reduced by 10%-17% while meeting the rigidity and strength requirements, thus improving the flight performance of the aircraft.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a casing of a tail speed reducer, a manufacturing method of the casing, the tail speed reducer and an aircraft. The casing of the tail speed reducer comprises a framework, a main body and a lining body. The framework is made of metal materials and comprises a framework connecting body and a framework main body. The framework connecting body is of a cavity structure with two open ends; the framework main body is of an annular structure, the annular structure is arranged around the framework connecting body, the framework main body comprises a first surface and a second surface, a cavity is formed between the first surface and the second surface, and at least two first through holes are formed in each of the first surface and the second surface; the main body is made of a composite material and is filled into the cavity through the first through hole; the lining body is made of metal materials, is of a cavity structure with two open ends, and is embedded in the inner periphery of the framework connecting body.
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