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介绍了直九飞机上使用的复杂镁铝铸件主减机匣的结构特点,阐述了该铸件外型砂芯结构特点及其工艺技术要求,对该外型自硬砂芯芯盒设计中的中心定位体、活块、起吊芯骨、外套框、内套框及其底座等主要结构和零件的优化设计、方案优选作了详细评述,并引入了人体工效学、美学、黄金分割原理等理念来指导该芯盒的设计,生产实践结果,达到了既适(实)用又美观的效果。
This paper introduces the structural features of the main reducer casing for magnesium-aluminum castings used in straight-nine aircraft, expounds the structural characteristics and technical requirements of the exterior sand core structure of castings, and discusses the central positioning of the core- Body, live block, bolster, jacket frame, inner frame and its base and other major structures and components of the optimal design, program optimization made a detailed review, and the introduction of ergonomics, aesthetics, the principle of golden section to guide the concept of The core box design, production practice results, both to meet the (real) with a beautiful effect.