Sliding bearing type wind driven generator unit yaw system and friction plate replacement method

Abstract

The invention discloses a sliding bearing type wind driven generator unit yaw system, which is used for connecting a blower tower drum and a framework and comprises a bearing large gear ring, a bearing ring, a bearing axial bearing surface friction plate, a bearing radial bearing surface friction plate, a yaw brake and a yaw driving mechanism, wherein the lower end of the bearing large gear ring is connected with the upper end of a tower drum, and the upper end of the bearing large gear ring supports the lower end of a framework through the bearing axial bearing surface friction plate in combining connection with the bearing large gear ring, a large gear on one side of the bearing large gear ring is meshed with the yaw driving mechanism fixed on the framework, and the other side of the bearing large gear ring is in sliding fit with the circumference of a bearing ring via the bearing radial bearing surface friction plate in combining connection with the bearing large gear ring; and the upper end of the bearing ring is connected to the lower end of the framework, and the yaw brake is connected to the lower end of the bearing ring and acts on the bearing large gear ring. The whole sliding bearing type wind driven generator unit yaw system has the characteristics of simplicity, practicality and low cost, and can reduce the number of the yaw brake; and in addition, the invention further discloses a friction plate method of the system, and the friction plates adopts a combination mode and thus are convenient to mount and replace.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a yaw system of a sliding bearing type wind power generator set and a friction plate replacement method. Background technique [0002] At present, most of the yaw systems of large wind turbines use rolling yaw bearings. The cost of rolling yaw bearing itself is relatively high. At the same time, when the rolling yaw bearing is used, the yaw system must be equipped with a large number of yaw brakes to ensure that the cabin can keep a certain spatial orientation stationary when the crew does not do yaw motion. In addition, when the crew performs yaw motion, a certain yaw damping torque needs to be applied to ensure that the crew can perform stable yaw motion. At the same time, the rolling bearing should be equipped with an automatic lubrication system to ensure the lubrication of the rolling elements. SUMMARY OF THE INVENTION [0003] The main purpose of the present inventi...

AI Technical Summary

Problems solved by technology

The cost of the rolling yaw bearing itself is relatively high

Images