Automatic pitch changing system of generator, motor and engine

Abstract

The invention discloses an automatic pitch changing system of a generator, a motor and an engine. The automatic pitch changing system comprises a main shaft and a plurality of blades distributed around the axis of the main shaft; and the automatic pitch changing system is characterized by further comprising a blade cavity shell, an elastic movable steering mechanism, the generator or the motor orthe engine, the blade cavity shell is arranged on the main shaft and is used for installing the blades, the elastic movable steering mechanism is used for guiding the blades to deflect when the bladesmove relative to the blade cavity shell, and is used for applying elastic force to the blades, and the generator, or the motor or the engine is connected to a rotating shaft. According to the automatic pitch changing system, the optimal combination of the pitch angle and the rotation speed can be automatically obtained on different types of turbine machines, and a pure mechanical structure is notused for power failure, so that the reliability, the strictness and the control efficiency of the system are enhanced, and the defects that an existing active control system is extremely complex andexpensive are overcome.

Description

technical field [0001] The invention relates to blade technology, in particular to an automatic pitch-adjusting system for a generator, an electric motor and an engine. Background technique [0002] At present, devices that use rotating blades to achieve power input or power output are widely used, for example, they are widely used in wind power generators, water turbines, screw propellers, turbines, rotary machines and other equipment. Wherein, since the blade is affected by the velocity of the fluid (gas or liquid) during the rotation process, it is usually necessary to adjust the pitch angle of the blade for different flow velocities. In the prior art, the pitch angle of the blades is usually adjusted by means of electronic control, and the pitch angle of the blades is adjusted by using a computer system to detect the wind speed. However, all of the above rely on several subsystems, such as computers, software, anemometers, thermometers, etc., which are easily affected b...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide an automatic pitch system, which solves the defects of low reliability and high cost of the automatic pitch system in the prior art, realizes improving the reliability of the automatic pitch system, and reduces its manufacturing cost and maintenance cost

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