the coaxial degree is beyond limitРDing Zhong-weiР(Jinjiang mechanical factory , ChenDu Sichuan , 610043)РAbstract: The summary lest describes the inspection-test of trail-transfer-shaft’s coaxialinty degree of helicopter and the effect forwards trail-transfer-shaft itself when its coaxialinty degree is beyond limit, then according the scale and the direction of the error and the assembling state of the moving part of trail-transfer-shaft to adjust the coaxialinty degree of trail-transfer-shaft’s bearing ,and the middle-retarder and the trail-retarder stead situation. Use the method above adjust the trail-transfer-shaft’s coaxialinty degree in order to guarantee the safety of the helicopter’s flying.РKey words: Helicopter,Trail-transfer-shaft,Coaxialinty,Inspection-test,Deviation,Eliminate
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