Speed increasing device and wind generating set

Abstract

The invention discloses a speed increasing device for a wind generating set, which comprises at least one hydraulic speed increasing unit. The hydraulic speed increasing unit comprises a hydraulic pump (1) and a hydraulic motor (2), an input shaft of the hydraulic pump (1) is connected with an output shaft of a wind wheel of the wind generating set, an oil inlet of the hydraulic pump (1) is communicated with an oil tank, an oil outlet of the hydraulic pump (1) is communicated with an oil inlet of the hydraulic motor (2), an oil outlet of the hydraulic motor (2) is communicated with the oil tank, and an output shaft of the hydraulic motor (2) is connected with an input shaft of a generator (3) matched with the output shaft. The speed increasing device can meet requirements of wind generating sets with different power by increasing or decreasing the number of the hydraulic speed increasing units, is high in modularization level, strong in generality, simple in structure, easy to assemble and high in work efficiency. In addition, the invention further provides the wind generating set including the speed increasing device.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a speed increasing device for a wind power generating set. In addition, the present invention also relates to a wind power generating set comprising the above speed increasing device. Background technique [0002] With the rapid development of economic construction, wind energy, as a new energy source, is more and more widely used in the field of power generation by countries all over the world. [0003] A wind turbine generally includes a wind rotor, a speed-increasing device and a generator. The wind rotor is an important component that converts the kinetic energy of the wind into mechanical energy. Its function is to convert the kinetic energy of the flowing air into rotational mechanical energy. [0004] Please refer to figure 1 , figure 1 It is a schematic structural diagram of a typical speed-up device for a wind power generating set in the prior art. [0...

AI Technical Summary

Problems solved by technology

[0010] To sum up, the speed-increasing gearboxes of wind turbines in the prior art are relatively poor in versatility, complex in structure, and relatively high in cost. Especially for wind turbines with relatively high installed power, the design of the speed-increasing gearbox requires investment Relatively large manpower and material resources, and the design cycle is relatively long, and the cost of use is higher

[0011] In addition, when the speed-increasing gearbox or the matching generator 5' breaks down during use, the whole machine has to stop working, and the work can only be started after repairing, and the working efficiency of the wind power generating set is relatively low.

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