Method for correcting deviation of connecting surface of wind wheel system and transmission spindle of wind generating set

Abstract

The invention discloses a method for correcting deviation of a connecting surface of a wind wheel system and a transmission spindle of a wind generating set. The method comprises the following steps that the wind wheel system is reversed by using aerodynamic force, a hydraulic braking device of the wind generating set is adopted for braking, and after the reversing-braking cycle is repeated for multiple times, the deviation of the connecting surface of the wind wheel system and the transmission spindle is corrected. According to the method, the deviation of the connecting surface of the wind wheel system and the transmission spindle is corrected by adopting aerodynamic force and a wind turbine generator braking device, and the deviation of the connecting surface of the wind wheel system and the transmission spindle can be effectively solved.

Description

technical field [0001] The disclosure belongs to the technical field of wind power generation, and in particular relates to a method for correcting the deviation of the connection surface between the wind wheel system and the transmission main shaft of a wind power generator set. Background technique [0002] Wind energy is a renewable resource, and using wind energy to generate electricity is a new technology that plays an important role in my country's energy supply today. With the advancement of wind power technology and the deepening of research, the safe operation of wind turbines has become a hot topic of research. Among them, the wind rotor system is the source component that converts wind energy into mechanical energy. It is mainly composed of blades, hubs, covers and electrical components. The wind rotor system and the transmission shaft are connected by high-strength fasteners. [0003] The safe and reliable connection between the wind wheel system and the transmi...

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Problems solved by technology

However, the inventor found that this method belongs to the maintenance after the completion of the project, so the wind field needs to be requisitioned twice, and the cost is doubled. At the same time, the crane entry and rental costs are very high, and dismantling the blades and hoisting the hub are high-altitude outdoor operations , the safety risk is very high, resulting in high manual construction costs. Therefore, the construction cost and safety risk of this scheme remain high, and the construction period is long, the efficiency is slow, and the labor is much (from the crane entering the site to the wind turbine restart, and the deviation correction of a single wind turbine. 8 people are required to work continuously for four days), and more power generation is lost, which brings greater economic losses to the owner

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