MAINTENANCE SYSTEM FOR WIND TURBINE EQUIPMENT

• US 20120125876A1
• Filed: 03/31/2009
• Published: 05/24/2012
• Est. Priority Date: 09/01/2008
• Status: Active Grant

• Current Assignee: Doosan Heavy Industries and Construction Company Limited
• Original Assignee: Doosan Heavy Industries and Construction Company Limited
• Inventors: Park, Jong Po, Kim, Jeong Il, Lee, Byung Kyu, Park, Hyun Yong, Park, Jung Hun, Lee, Jeong Hoon
• Granted Patent: US 9,086,051 B2
• Time in Patent Office: Days
• US Class Current: 212/312
• CPC Class Codes: B66C 17/04 with lifting beams, e.g. slewable beams, carrying load-engaging elements, e.g. magnets, hooks constructions of load-engaging elements B66C1/00, B66C3/00
• CPC Class Codes: B66C 23/207 with supporting couples provided by wind turbines
• CPC Class Codes: F03D 80/50 Maintenance or repair
• CPC Class Codes: F05B 2240/916 with provision for hoisting onto the structure
• CPC Class Codes: F05B 2250/43 with three degrees of freedom
• CPC Class Codes: Y02E 10/72 Wind turbines with rotation axis in wind direction
• CPC Class Codes: Y02E 10/728 Onshore wind turbines

Abstract

The present invention provides a maintenance system for wind turbine equipment. The maintenance system includes a trolley support unit (130), a trolley (140), a pulley, a winch unit (150) and a door (160). The trolley support unit is provided in the nacelle so as to be movable in the longitudinal direction of the nacelle. The trolley is provided on the trolley support unit so as to be movable in the lateral direction of the nacelle. The pulley is rotatably installed in the trolley. The winch unit is connected to the pulley through a wire. The door is provided in the nacelle so that an element of the nacelle to be repaired is removed from or inserted into the nacelle through the door. Therefore, in the present invention, when maintenance or repair of an element in the nacelle is required, it can be conveniently conducted without using a separate crane.

Claims

1. A maintenance system for wind turbine equipment including a nacelle having a gear box and a generator to generate electricity using wind power, a blade mechanically connected to the gear box, and a tower supporting the nacelle on an upper end thereof, the maintenance system, comprising:

a trolley support unit provided at an upper position in the nacelle so as to be movable in a longitudinal direction of the nacelle;

a trolley provided on the trolley support unit so as to be movable in a lateral direction of the nacelle;

a pulley installed in the trolley so as to be rotatable;

a winch unit connected to the pulley through a wire; and

a door provided in a lower end of the nacelle so that an element of the nacelle to be maintained or repaired is removed from or inserted into the nacelle through the door.

2. The maintenance system according to claim 1, further comprising:

a jig provided below the pulley to hold the element to be maintained or repaired.

3. The maintenance system according to claim 2, wherein the winch unit is fastened to the tower or supporting ground.

4. The maintenance system according to claim 2, wherein the pulley comprises a drive pulley connected to the winch unit, and a driven pulley coupled to the jig, wherein the drive pulley comprises a plurality of drive pulleys, and the driven pulley comprises a plurality of driven pulleys.