The invention discloses a blade bolt for a controllable-pitch propeller, and belongs to the field of ships. Wherein the paddle bolt comprises a main bolt and a plurality of pushing pieces, the main bolt comprises a screw rod and a screw cap, a plurality of screw holes are formed in the screw cap, and one pushing piece is inserted into each screw hole. According to the invention, the plurality of pushing pieces abut against the blades, and under the action of the pushing pieces, the blades can be tightly attached to the crankpin disc, so that the friction force between the blades and the crankpin disc is increased, the looseness prevention is realized, and the connection and fixation of the blades and the crankpin disc are realized in a labor-saving manner.
本发明公开了一种用于调距桨的桨叶螺栓,属于船舶领域。所述桨叶螺栓包括主螺栓和多个顶推件,主螺栓包括螺杆和螺帽,螺帽中设置有多个螺孔,每个螺孔中均插装有一个顶推件。本发明通过将多个顶推件与桨叶相抵,并在顶推件的作用下,桨叶会紧贴曲柄销盘,增大了桨叶与曲柄销盘之间的摩擦力,实现了防松,从而省力的实现对桨叶和曲柄销盘的连接固定。
Blade bolt for controllable-pitch propeller
用于调距桨的桨叶螺栓
24.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / 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 |
Engineering Index Backfile | 1940
|Engineering Index Backfile | 1929
|Engineering Index Backfile | 1940
|Engineering Index Backfile | 1931
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