A bearing, which is suitable for a wind turbine, with a lubricant collection system is provided. The bearing comprises a first bearing component with a first contact face and a first front face. It furthermore comprises a second bearing component with a second contact face and a second front face. The first front face is coupled with the first contact face; the second front face is coupled with the second contact face. The first bearing component and the second bearing component are movable relative to each other. The first contact face and the second contact face are prepared and arranged in a way to accommodate a lubricant. Furthermore, the bearing comprises a scraper, which is attached to the first front face and is in contact with the second front face. Finally, the invention also relates to a method of collecting a lubricant leaking out of a bearing, wherein the bearing is suitable for a wind turbine and comprises a first step of scraping off the lubricant escaping from in-between the first contact face and the second contact face, and a second step of guiding the scraped-off lubricant to a lubricant collection device by means of gravitational force.

Bearing and method of collecting a lubricant leaking out of a bearing

The present invention relates to a bearing system (100) for a wind turbine (300). The bearing system (100) comprises a first bearing ring (130), a second bearing ring (140), a roller element (106), and a scraper element (403). The first bearing ring (130) has a first surface (107) to which a first turbine element (210) of the wind turbine is coupleable. The second bearing ring (140) has a second surface (108) to which a second turbine element (220) of the wind turbine (300) is coupleable. The roller element (106) is installed inside an inner volume (102) between the first bearing ring (130) and the second bearing ring (140) and which supports the first bearing ring (130) rotatably to the second bearing ring (140). The scraper element (403) is coupled to the first bearing ring (130), wherein the scraper element (403) abuts onto the second bearing ring (140) such that grease is scrapable off from the second bearing ring (140).

Scraper element for a direct drive main bearing of a wind turbine

A bearing, which is suitable for a wind turbine, with a lubricant collection system is provided. The bearing comprises a first bearing component with a first contact face and a first front face. It furthermore comprises a second bearing component with a second contact face and a second front face. The first front face is coupled with the first contact face; the second front face is coupled with the second contact face. The first bearing component and the second bearing component are movable relative to each other. The first contact face and the second contact face are prepared and arranged in a way to accommodate a lubricant. Furthermore, the bearing comprises a scraper, which is attached to the first front face and is in contact with the second front face. Finally, the scraper is arranged and prepared to scrape off the lubricant which escapes from in-between the first contact face and the second contact face and adheres to the second front face. The scraper is also arranged and prepared to guide the lubricant to a lubricant collection device by means of gravitational force. Finally, the invention also relates to a method of collecting a lubricant leaking out of a bearing, wherein the bearing is suitable for a wind turbine and comprises a first step of scraping off the lubricant escaping from in-between the first contact face and the second contact face, and a second step of guiding the scraped off lubricant to a lubricant collection device by means of gravitational force.

Direct drive turbine comprising a bearing and method of collecting a lubricant leaking out of a bearing

The utility model discloses a variable propeller system used in wind generator set. the system includes a wheel hub (1), a slewing bearing (2) on the wheel hub (1); and an oil cleaning component (3), the oil cleaning component (3) is disposed on the wheel hub (1) and contacts with any part of the slewing bearing (2). In this way, when the slewing bearing (2) has oil stain needed to be cleaned, the oil stain can be transferred to the oil cleaning component (3) or other proper positions due to the oil cleaning component (3) contacts with the slewing bearing (2), the overall oil cleaning of the slewing bearing (2) can be realized by the rotation of the slewing bearing (2) around the wheel hub, at the same time, the wind generator set can normally work, thereby improving the work efficiency of air blowers. The utility model also discloses a wind generator set equipped with the variable propeller system.

Shengwu Tang

Papers

Wind generator set and the variable propeller system thereof