The invention discloses a propeller pitch angle adjusting device and adjusting method, which includes: an outer ring is arranged vertically and an angle mark is arranged along the periphery of its outer edge, an inner ring is coaxially arranged with the outer ring, located in an inner cavity of the outer ring and capable of rotating along its center in the outer ring , two fixing pipes are symmetrically arranged and fixed to the edges of the two sides of the inner ring correspondingly, and the connecting line of the axes of the two pipe bodies passes through the center of the inner ring, two Y-shaped pieces are located in an inner cavity of the inner ring, the polymerization end of each Y-shaped piece is sleeved with a spring so that the polymerization end can extend into the correspondingfixing pipe and move along the fixing pipe, and the spring is fixedly connected with the inner end of the corresponding fixing pipe, the inner ring is used to clamp the blade and drive the blade to rotate a predetermined angle, so as to adjust the angle between the chord line of the blade and the rotation plane of the propeller disc. The invention improves the efficiency of the experiment and reduces the cost, which can accurately locate the position of the front and rear edges of 75% spread profile and adjust the pitch angle through the angle between the chord line of the blade and the rotation plane of the propeller disc.
本发明公开了一种螺旋桨桨距角调节装置及调节方法,包括:外圆环,竖向设置,沿其外沿一周设置有角度标记,内圆环,与外圆环同轴设置,且位于外圆环内腔,可以其圆心在外圆环内转动,两个固定管,对称设置,分别固定在内圆环的两侧边沿上,两个管体轴线的连线过内圆环的圆心,两个Y形件,位于内圆环内腔,其聚合端上套设有弹簧,使得聚合端可伸入对应的固定管内、且可顺着固定管移动,弹簧与对应的固定管的内端固定连接,内圆环用于夹持住桨叶后带动桨叶转动预定角度,进而调整桨叶弦线与桨盘旋转平面的夹角;本发明提高了实验的效率并且降低成本,能准确找到75%展向剖面处前、后缘的位置,并通过桨叶弦线和桨盘旋转平面的夹角,实现桨距角的调节。
A propeller pitch angle adjusting device and adjusting method
一种螺旋桨桨距角调节装置及调节方法
2020-12-25
Patent
Electronic Resource
Chinese
IPC: | B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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