The invention discloses a propeller blade root structure and relates to the technical field of propellers, the propeller blade root structure is of an integrated structure and comprises a blade root cylindrical section, a blade root check ring and a blade body connecting section which are sequentially connected, and a blade root arc is arranged at the end, close to the blade root check ring, of the blade body connecting section; a blade root bearing hole is formed in the center of the end face of the blade root cylindrical section, a balance weight hole is formed in the center of the hole bottom of the blade root bearing hole, a variable-pitch pin mounting hole is further formed in the end face of the blade root cylindrical section, and a centrifugal variable-pitch block is arranged on the side wall of the blade body connecting section. The propeller blade root structure provided by the invention can bear the load borne by the blade, and has the functions of balancing the weight moment of the propeller and changing the angle of the blade.
本发明公开了一种螺旋桨桨叶叶根结构,涉及螺旋桨技术领域,桨叶叶根结构为一体式结构,包括依次连接的叶根圆柱段、叶根挡圈和叶身连接段,所述叶身连接段靠近所述叶根挡圈的一端设有叶根圆弧,所述叶根圆柱段的端面中心设有叶根轴承孔,所述叶根轴承孔的孔底中心设有配重孔,所述叶根圆柱段的端面上还设有变距销安装孔,所述叶身连接段的侧壁上设有离心变距块。本发明提供的螺旋桨桨叶叶根结构,能够承载桨叶所受载荷,并且具备螺旋桨重量力矩的配平和改变桨叶角度的功能。
Propeller blade root structure
一种螺旋桨桨叶叶根结构
2024-07-26
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |