Yaw structure of wind generating set

Abstract

The invention discloses a yaw structure of a winding generating set. The yaw structure comprises a cabin, a tower drum, a yaw drive, a plurality of brakes and a yaw gear ring, wherein the yaw gear ring is fixedly connected to the tower drum; the position, close to the outer circle of the yaw gear ring, of the bottom of the cabin is equipped with multiple brakes; friction plates are separately arranged between the top surface, the bottom surface and the side surfaces of the yaw gear ring and the upper side surfaces, the lower side surfaces and the bottom surfaces of brake grooves; and force moment regulating devices are arranged between the friction plate on the bottom surface of the yaw gear ring and the brakes. The yaw structure is simple in structure, is low in cost, is convenient in maintenance, and avoids the problem that cabin blocking slot processing is inconvenient, and avoids the risk that the cabin is damaged during cabin blocking slot processing.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a yaw structure of a wind power generating set. Background technique [0002] The yaw device of the wind turbine is an important part of the wind turbine. It usually consists of a nacelle, a tower, a yaw drive, a rolling bearing and a brake. Its functions are mainly yaw and brake functions. Yaw function: when the wind direction changes, the yaw drive drives the nacelle to rotate relative to the tower, so that the nose always faces the direction of the incoming wind; braking function: when the nose faces the direction of the incoming wind or other required positions, the braking provided by the brake Power, prevent the nacelle from deviating from the target position relative to the tower under the action of inertia and external load, and ensure the safe and reliable operation of the wind turbine. [0003] The Chinese patent "A Sliding Yaw Bearing for Lar...

AI Technical Summary

Problems solved by technology

[0004] 1. The friction plate on the upper bearing surface is located in the card slot of the engine room, the processing of the card slot is complicated and the cost is high

In addition, once the card slot is damaged, a crane must be used to drop the entire cabin for replacement, and the maintenance cost is high;

[0005] 2. The upper bearing surface friction plate needs to be replaced regularly, but because the upper bearing surface friction plate is pressed by the engine room, it is actually difficult to replace;

[0006] 3. Restricted by the structure, the length of the connecting bolts between the brake and the engine room is limited, and the bearing capacity of the bolt pair is small, so there is a risk of slipping of the connecting surface and damage of the bolts

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