Gear Units for Wind Power Plants
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Sonderdruck aus Wind Kraft Journal >

by Dipl.-Ing. Peter Boiger, RENK AG Motivation In the early 80ies already, RENK AG in Augsburg started to deal with gear units for large-size wind power stations up to 3 MW. The Njun֤sud- den plant in Godland which was operated successfully for 13 years was designed in 1982 with a power rate of 2.5 MW and may therefore be mentioned as a representative example. Based on the experiences gained in the design and construction of indus- trial gear units, RENK managed tofind a most sophisticated and yet durable and trouble-free gear unit solution. Further gear unit projects for large-size wind...

The Aim With this technology, RENK keeps pursuing the aim which in the indus- trial gear unit sector has lead to a maximum degree of availability: ?Restriction of component stress ?Antifriction bearings are to besupplied with clean oils (cleanli- ness class 15/12, as per ISO 4406)?Consistent pressure oil lubricationof all lubrication points?Solid construction ensuring thatthe rated load distribution factor over the face width is not exceed- ed for the toothing and the anti-friction bearings by disregarded deflection?Use of Plain Bearings instead ofRoller Bearings wherever it is for- tunate...

Author: Dipl. Ing. Peter Boiger The Strategy The motivation behind RENKs par- ticipation in the wind power market is based on the firm intention to qualify the gear unit wind turbine to become an equivalent solution in any respect compared to a direct drive. Of course, the product costs have been optimised under series manu- facture aspects, however, there has always been the top-priority princi- ple not to save costs when availabi- lity is at stake. At no time has it been our aim to reach a certain market position via the price of a product? (- price for- mation gefҤllt mir eigentlich...

Disassembly device in mounted condition in themachinery house. A special stand was placed over the gear unit, disassembled piece by piece and reassembled. The check of the individual parts showed an impeccable gear unit condition. Disassembled planetary gear unit and pinion. Annulus >