| 摘要 |
A safety device for a blade of a wind power generator is provided to protect a blade by switching a state of the blade into a free rotation state when the intensity of 15m/s or more, to block wind. A safety device for a blade of a wind power generator includes an injector(55), a tow rod(51), a rotational plate(57), a wire(147), and upper and lower couplings. The injector operates at the preset intensity of wind. The tow rod is lifted by the injector. The rotational plate rotates by the tow rod. The wire is pulled by the rotation of the rotational plate. The locking state of the upper and lower couplings is controlled by the wire. The injector is driven by a motor(54) that is controlled by a wind meter(60) and a central control system(70). A ball joint is installed between the tow rod and the screw rod. |
