Medium and small sized variable propeller pitch wind-driven generator

Abstract

The invention discloses a medium and small sized variable propeller pitch wind-driven generator, which mainly comprises a generator, a hub, a rotating body, a bearing chamber and a vertical shaft. The front end of the generator is connected with the hub through a spindle; a hub cover is arranged on the hub; the rear end of the generator is fixedly connected with the rotating body; and the bottom of the rotating body is connected with the vertical shaft through the bearing chamber. The wind-driven generator is characterized in that: fan blade connecting shafts are uniformly distributed on the hub annularly; centrifugal hammers are arranged on the fan blade connecting shafts; the fan blade connecting shafts are arranged at one end in the hub to be connected with a synchronous mechanism; the synchronous mechanism is connected with a synchronous disc which is arranged at one end of a reciprocating rod; an offsetting spring is arranged between the synchronous disc and the hub cover; the reciprocating rod passes through the spindle to extend into the rotating body; the reciprocating rod and the spindle are in movable fit; a poking arm is connected in the rotating body through a brake bracket hinge; one end of the poking arm is contacted with the reciprocating rod, and the other end of the poking arm is connected with a brake rod; and the brake rod passes through the bearing chamber to extend into the vertical shaft.

Description

technical field [0001] The invention relates to a generator, in particular to a medium-sized and small-sized pitch-variable wind power generator. Background technique [0002] Among the existing small and medium-sized variable pitch wind turbines, most wind turbines are mainly yaw wind power generation, the starting torque is large, the generator is difficult to start in the breeze, and the speed cannot be limited, all according to the size of the wind Since it rotates by itself, the output power is unstable, and the safety is poor. In the case of a hurricane, it cannot effectively protect itself. Contents of the invention [0003] The purpose of the present invention is to provide a highly efficient and reliable variable pitch wind generator that can be started at low wind speeds, limited in high winds, and automatically shuts down in hurricanes in order to solve the deficiencies of the above-mentioned technologies. [0004] In order to achieve the above-mentioned purpos...

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Problems solved by technology

[0002] Among the existing small and medium-sized variable pitch wind turbines, most wind turbines are mainly yaw wind power generation, the starting torque is large, the generator is difficult to start in the breeze, and the speed cannot be limited, all according to the size of the wind Since it rotates by itself, the output power is unstable, and the safety is poor. In the case of a hurricane, it cannot effectively protect itself

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