Waste oil collection device for yaw system of wind turbine generator

Abstract

The invention discloses a waste oil collection device for a yaw system of a wind turbine generator and relates to the field of wind power technology. The waste oil collection device comprises a tower drum and a yaw brake disc arranged at the upper end of the tower drum, wherein a yaw platform is arranged on the inner wall of the tower drum; four supports are arranged upwards on the yaw platform; an arc-shaped groove is formed in the upper end of each of the four supports; the four arc-shaped grooves are sequentially connected end to end to form an annular oil collection groove; a plurality of oil leakage holes are formed in the yaw brake disc in the circumferential direction; the annular oil collection groove is formed right below the oil leakage holes. By adoption of the design, waste oil of the yaw system can be collected in a comprehensive 360-degree no-dead-angle manner, so that the problems that waste oil of the yaw system of the wind turbine generator is splashed all around and difficult to collect, the yaw platform is difficult to clean, and the probabilities of such safety accidents as sliding are high are radically solved, and the maintenance efficiency of the whole wind turbine generator is improved without affecting proper functioning of the yaw system.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a waste oil collection device for a yaw system of a wind turbine. Background technique [0002] At present, both onshore and offshore large-scale wind turbines adopt an automatic wind-facing system, that is, a yaw system, which includes a wind direction sensor, a yaw bearing, a yaw drive, a yaw brake disc, a yaw brake and a control system. system, the yaw bearing bears the weight of the entire nacelle and the wind wheel, and is connected to the nacelle and the tower at the same time. Under the driving action of the driving device, the automatic wind and yaw of the wind turbine can be realized through the relative movement of the inner and outer rings of the yaw bearing. The operation of the bearing directly affects the power generation efficiency and overall life of the unit. Therefore, good lubrication and maintenance of the yaw bearing is the key to ensure its good operation...

AI Technical Summary

Problems solved by technology

However, the yaw lubricating pump is started every 36 hours, and each running time is 960s. Since the fan may be in the non-yaw state, but the yaw lubricating pump continues to work for a fixed time, so that the waste yaw lubricating grease accumulates too much and scatter to yaw platform

In addition, there are many round holes on the yaw brake disc, so that the waste oil passes through the round holes of the yaw brake disc, and then falls to the yaw platform in a large area, failing to fully collect the oil collection box, which aggravates the oil pollution on the yaw platform Happening

Images