Connecting device for connecting a fan blade to a rotor of a...

Details Connecting device for connecting a fan blade to a rotor of a... Connecting device for connecting a fan blade to a rotor of a...

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 29/34 (2006.01) F04D 25/08 (2006.01) F24F 7/007 (2006.01)

Patent

CA 2274156

A connecting device includes a bottom member with a periphery for attaching on a rotor of a motor, a circumferential wall which extends upwardly from the periphery, and a mounting arm which has an anchored end adapted for mounting the fan blade thereon and an anchoring end for anchoring on the bottom member such that the mounting arm is oriented in a radial direction relative to the bottom member by guidance of a guiding member. A tightening member is disposed to tighten the anchoring end relative to the bottom member through a clamping force generated in a circumferential direction of the bottom member when the anchoring end is pulled away from the bottom member in the radial direction. A retaining member is disposed between the tightening member and the anchored end in the radial direction, and has an engaging spring member that abuts against the circumferential wall once the anchoring end is moved away from the bottom member.

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