The invention relates to a directionally adjustable blade pivot (2) for a turbine fan hub, comprising: a stud (4) having means for holding (10) the root of a fan blade and coupling means for transmitting torque; a rolling bearing (14) for absorbing centrifugal forces, having an inner ring (16) mounted to abut against a radially outer portion of the stud in a laterally abutting manner; a radial retaining ring (24) for retaining the stud relative to the rolling bearing, the ring being housed in an annular groove (22) formed in the stud; a plurality of clamping members (26) each mounted in a laterally abutting manner against the retaining ring and in a radially abutting manner against the inner ring of the rolling bearing; and a clamping nut (28) which is screwed onto the external thread (30) of the stud so as to be in conical abutment with the clamping member such that the clamping member clamps the inner ring of the rolling bearing on the stud and the retaining ring in the groove.
本发明涉及一种用于涡轮机风扇轮毂的定向可调的叶片枢转部(2),包括:螺柱(4),具有用于保持(10)风扇叶片根部的装置和用于传递扭矩的联接装置;用于吸收离心力的滚动轴承(14),具有安装成以横向邻抵方式抵靠螺柱的径向外部部分的内环(16);径向保持环(24),用于相对于滚动轴承保持螺柱,该环容纳在螺柱中形成的环形凹槽(22)中;多个夹紧部件(26),各自以横向邻抵方式抵靠保持环安装,并且以径向邻抵方式抵靠滚动轴承的内环安装;以及夹紧螺母(28),夹紧螺母(28)拧到螺柱的外螺纹(30)上,以与夹紧部件锥形邻抵,使得所述夹紧部件将滚动轴承的内环夹紧在螺柱上,并将保持环夹紧在凹槽中。
Improvements in directionally adjustable blade pivot radial locking for turbine fan hub
用于涡轮机风扇轮毂的定向可调的叶片枢转部径向锁定的改进
2022-07-22
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / F16C SHAFTS , Wellen |
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