A yaw device for wind turbines that effectively resists strong wind attacks

Abstract

The invention discloses a wind driven generator yawing device capable of effectively withstanding strong wind attack. A connection arm is eccentrically mounted relative to a yawing rotary seat, a tail vane rotary sleeve is rotatably connected onto the connection arm and positioned behind the yawing rotary seat, and the tail vane rotary sleeve is in a tilted arrangement in a way that the higher the tail vane rotary sleeve is, the closer the tail vane rotary sleeve approaches to the side of the yawing rotary seat. A tail vane rod is fixed onto the tail vane rotary sleeve, a first limiting block and a second limiting block are positioned on two sides of the tail vane rod respectively and arranged on the connection rod, and a limiting plate is arranged on the tail vane rod. A tail vane plate is perpendicular to a vane rotation surface when the first limiting block and the limiting plate are in abutted connection. The tail vane plate is parallel to the vane rotation surface when the connection arm rotates relative to the tail vane rod to drive the second limiting block to be in abutted connection with the limiting plate. The wind driven generator yawing device has the advantages of simplicity, reasonability and compactness in structure, convenience in installation, low implementation cost, capability of automatically adjusting vane rotation speed according to wind speed, avoidance of galloping and the like.

Description

technical field [0001] The present invention relates to power generation equipment, in particular wind generators. Background technique [0002] The use of natural renewable resources such as solar energy and wind energy to replace limited energy such as fuel oil has become an important strategy to solve energy problems. As one of the important ways to utilize renewable resources in nature, wind turbines convert wind energy into electrical energy, and then apply the produced electrical energy to various fields of daily life. Most of the current wind turbines use propeller blades to receive wind. However, the blade should not be too large. If it is too large, when encountering strong winds, the blade will be severely bent towards the main trunk of the generator, or even interrupt the main trunk of the generator, causing huge economic losses, so the efficiency of the generator will be limited to a certain extent; In addition, in the state of strong wind, it is easy to cause t...

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Problems solved by technology

However, the blade should not be too large. If it is too large, the wind blade will be severely bent towards the generator trunk in case of strong wind, or even break the generator trunk, causing huge economic losses, so the efficiency of the generator is limited to a certain extent; In addition, in the state of strong wind, it is easy to cause the speed to be out of control. After exceeding the maximum speed set by the generator, it still does not stop. Accompanying it is the overcurrent of the generator, which seriously damages the internal structure of the generator and causes the phenomenon of speeding

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