A fan blade angle connecting rod compound adjustment mechanism

Abstract

The invention relates to the technical field of wind power generation equipment, in particular to a connecting rod type composite adjusting mechanism for the angle of a fan blade. The connecting rod composite adjusting mechanism comprises a screw and nut assembly connected with an output mechanism of a power unit, a plurality of sliding rods parallel to the screw and nut assembly, a base assembly fixing the screw and nut assembly and the sliding rods, a sliding device arranged at the front end of the screw and nut assembly and conducting linear sliding along the sliding rods, and a connecting rod assembly connecting the sliding device and the blade. The connecting rod assembly comprises connecting rods, rotating arms and joint shafts. The connecting rods are rotationally installed on the sliding device. One ends of the rotating arms are rotationally connected with the connecting rods, and the other ends of the rotating arms are fixedly connected with the joint shafts. The joint shafts are connected with all blade shaft sleeves of a wind wheel through connecting assemblies. According to the connecting rod type composite adjusting mechanism for the angle of the fan blade, the structure of the fan blade adjusting mechanism is changed, a transmission manner is changed, transmission stability and accuracy are improved, and the blade shaking amount is reduced.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment, in particular to a fan blade angle link type composite adjustment mechanism. Background technique [0002] The wind turbine blade adjustment mechanism is connected with the power unit to drive the main transmission part to move, and the windward angle of the blade is adjusted through the transmission of the transmission mechanism. At present, some wind turbine blades are installed at a fixed angle, and some are independently adjusted for the blade angle. The independent adjustment of the blade angle has poor synchronization, and the blade has a free end, which causes a large amount of shaking. [0003] In order to solve the above problems, the applicant is committed to the development of related technologies. For example, the two patents submitted by the applicant are related to the improvement of the adjustment mechanism of the wind turbine blades - the patent application...

AI Technical Summary

Problems solved by technology

These two adjustment mechanisms have changed the traditional transmission mode to achieve synchronous blade adjustment; however, the transmission friction coefficient of the worm gear is large and the transmission efficiency is low, and the adjustment mechanism of the straight rack type cannot easily realize the change of the transmission angle. As a result, the control of the blade angle is still not very ideal

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