Transmission chain of wind turbine generator and wind turbine generator including transmission chain

Abstract

The invention discloses a transmission chain of a wind turbine generator and the wind turbine generator including the transmission chain, and belongs to the field of wind turbine generators. The transmission chain comprises a main shaft, a gearbox and a generator, all of which are connected in sequence. A bearing and a bearing pedestal mounted in cooperation with the bearing are mounted on the main shaft. A through hole is formed in the middle of the generator. An output shaft of the gearbox penetrates through the generator through the through hole and is connected with a generator rotor through a reverse flexible device. In the transmission chain, reverse shaft penetrating connecting is adopted between an output shaft of the gearbox and the generator rotor, that is, the output shaft and the generator rotor are connected through the reverse flexible device, the length of the transmission chain can be effectively reduced, and therefore the length of a rack and other relevant structure parts is reduced, and cost is saved. Reverse shaft penetrating connecting is adopted, a brake system can be mounted at the tail of the generator, the length of a cabin and the like can be further reduced, the length of the transmission chain is further reduced, the brake system is mounted at the tail of the generator, and mounting and maintenance are convenient.

Description

technical field [0001] The invention relates to the field of wind turbines, in particular to a transmission chain more suitable for offshore large-scale wind turbines and a wind turbine including the same. Background technique [0002] With the development of the wind power industry from land to sea, the diameter of the wind rotor continues to increase, and the load on the wind turbine is also increasing. The traditional load transmission path cannot adapt to this change well, and it is impossible to design an optimal transmission. chain layout. [0003] The traditional transmission chain design is often divided into separate designs. The main bearing, main shaft, and bearing housing are used as a system, and the gearbox, generator, and coupling are also designed separately. The connection between the parts is not systematic enough, so that The length of the transmission chain is long, especially for large-scale wind turbines above 10 MW. The increase in the length of the t...

AI Technical Summary

Problems solved by technology

[0002] With the development of the wind power industry from land to sea, the diameter of the wind rotor is increasing, and the load on the wind turbine is also increasing. The traditional load transmission path cannot adapt to this change well, and it is impossible to design an optimal transmission. chain layout

[0003] The traditional transmission chain design is often divided into separate designs. The main bearing, main shaft, and bearing housing are used as a system, and the gearbox, generator, and coupling are also designed separately. The connection between the parts is not systematic enough, so that The length of the transmission chain is long, especially for large-scale wind turbines above 10 MW. The increase in the length of the transmission chain will greatly increase the size and weight of the unit, increase the difficulty of transportation, installation and maintenance of the unit, and hinder the development of offshore wind energy resources. develop and use

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