Gear case with bubble removal labyrinth seal structure

Abstract

The invention relates to the field of gear case structures, in particular to a gear case with a bubble removal labyrinth seal structure. A planet carrier, a case body and a bearing are arranged in thegear case. Through the gear case, lubricating oil is directly sprayed to the bearing through a lubricating oil way. A labyrinth seal inner ring is closely attached to and sleeves the exterior of theplanet carrier. A labyrinth seal outer ring sleeves the labyrinth seal inner ring. The labyrinth seal outer ring is provided with a third groove, the third groove is in penetrating connection with thecase body, and accordingly a third oil return way is formed. The case body is connected with a bubble removal component on the end face of a third oil return way port. During usage, when the bubblesmake contact with the bubble removal component, the bubbles can disappear, and therefore the situation that the bubbles enter a third oil way and seeps into the outer surface of the gear case througha V-shaped sealing ring, and oil leakage happens is avoided; the problem that due to excessive bubbles, oil seepage happens to the gear case is effectively solved; and cost is low, and assembling is convenient.

Description

technical field [0001] The invention relates to the field of gear box structure, in particular to a gear box with a labyrinth sealing structure for removing bubbles. Background technique [0002] During the long-term operation of the wind turbine, the oil leakage of the gearbox is very serious. The oil leakage at the low-speed end is generally considered to be affected by the excessive oil volume of the gearbox, so appropriate oil discharge measures are taken. On the other hand, during the peak period of wind turbine power generation, the longer the operation time of the gearbox, the more foam will be generated, and the labyrinth oil return port has no air bubble removal parts, which will cause large oil level changes, and the more prone to false oil shortage failures Call the police. [0003] However, wind turbines are often installed at an altitude of 70 to 90 meters at the outlets of mountains, wilderness, beaches, etc., where they are easily polluted and corroded, and a...

AI Technical Summary

Problems solved by technology

[0003] However, wind turbines are often installed at an altitude of 70 to 90 meters at the outlets of mountains, wilderness, beaches, etc., where they are easily polluted and corroded, and are often subjected to wind force with irregular directions and loads and strong gusts of wind. The internal space is small, so it is quite difficult to repair when it breaks down

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