现代飞机前缘缝翼作动装置——齿轮-齿条的设计技巧

Leading Edge Slat Actuating Unit of Modern Civil Aircraft——The Design Technique of Pinion-Rack

前缘缝翼在飞机起飞、降落中起到提高飞机升力、改善飞行性能的重要作用。新型的缝翼作动装置—齿轮-齿条,由于构思巧妙、占用空间小、重量轻而备受重用。在小齿轮与大圆弧齿条设计中,诸多参数的确定、关键细则的设计、全机多作动装置的协调、故障载荷的计算与深入分析,构成了其设计的重点和难点。采用此方法研制的齿轮-齿条装置已成功应用在飞机中。

The leading edge slat takes an important role to increase aircraft lift and to improve flight performance during taking off and landing . The new type slat actuating unit---pinion-rackis used greatly due to ingenious design , little occupied room and light weight. In design of pinion and big are rack , definition of parameters, design of key details , coordination for full-scale actuating units , calculation and analysis of fault-loads make of important and difficult points of units design. The pinion-rack actuating units which is adopted the method hereinbefore to design and research have been applied on aircrafts successfully.