Cable protecting structure between propeller shaft and propeller hub of helicopter

The invention relates to a cable protecting structure between a propeller shaft and a propeller hub of a helicopter. The two ends of the cable are connecting ends, one connecting end is connected to the propeller hub, and the other connecting end is connected to the propeller shaft; the cable is provided with an insulating sleeve; the two connecting ends of the cable are each sleeved with three layers of heat-shrinkable sleeves, and the length of the inner layer heat-shrinkable sleeve, the length of the middle layer heat-shrinkable sleeve and the length of the outer layer heat-shrinkage sleeveare gradually increased. The rigidity of the earth wire middle flexible portion is lowered, the rigidity of the whole earth wire is distributed again due to the improved whole structure of the earthwire, and the strength is locally reinforced, so that the fatigue property of the earth wire is improved, and the problem of fatigue cracks of the earth wire is solved. 本发明涉及种直升机桨毂与桨轴之间的线缆保护结构，所述线缆的两端为连接端，连接端连接到桨毂，另连接端连接到桨轴；所述