舰载直升机尾轴折叠机构技术现状及发展建议OA

By means of the tail rotor shaft folding mechanism,the tail drive shaft can be folded synchronously with the tail boom,thereby reducing the overall dimensions of the shipborne helicopter when parked and alleviating the space constraints on the deck and in the hangar.Focusing on the tail rotor shaft folding technology for shipborne helicopters,this paper summarizes the evolution and engineering application of related mechanisms both domestically and internationally,compares the structural characteristics and operational performance of the two configurations—the end-tooth type and the arc-tooth type,and analyzes the main shortcomings of the existing end-tooth type solutions.On this basis,combined with the technology development trends,suggestions are proposed to advance the key technology research of the arc-tooth type folding mechanism and to improve the design verification capability,providing a reference for the subsequent upgrading of shipborne helicopter transmission systems.