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New pinion shaft for Renk Tacke gearbox

Our customer - a Waste-to-Energy Plant - generates sustainable energy from waste. The waste is incinerated over grates, 24 hours a day, 7 days a week. The heat released by the combustion converts the water in the boiler walls and superheaters into steam which drives turbine-generator applications that generate sustainable electricity. Some of the heat is piped directly to local homes and businesses in the district heating network.

Stork Gears & Services was invited for the inspection of the reduction gearbox which is located between the high pressure and low pressure steam turbine. High vibration levels of the gearbox switched off the application. The inspection revealed a broken input pinion tooth. OEM-er executed a temporarily emergency repair of the gearbox. Stork Gears & Services was able to manufacture a completely new pinion shaft within the fastest delivery time in order to be able to operate at full power as soon as possible.

We manufactured a new pinion shaft by reverse engineering.
We managed to complete the project within 2 months. Our customer appreciated our fast delivery time and our reverse engineering skills to replicate the pinion shaft. The result is a brand-new component that meets the specifications of the original pinion shaft.

Please view the photogallery below for a brief impression of the inspection!

Customer
Amsterdam’s Waste and Energy Company AEB (Afval Energie Bedrijf)

Location
The Netherlands

Market segment

Waste and Energy company

Gearbox
Reduction gearbox of a steam turbine driven generator set
Renk Tacke turbogetriebe type TNA-500
23470 kW
RPM 6293/3000

Scope of work

  • Vibration measurements
  • New pinion shaft by reverse engineering
  • Alignment check between high pressure turbine and gearbox
  • Inspection of bearings and gear output shaft
  • Check of clearances and dimensional check
  • Check of contact patterns
  • Assembly of the new pinion shaft
Installation overview at Waste-To-Energy plant The load gearbox, type Renk Tacke The damaged old pinion shaft
Temporarily repair of the old pinion shaft Alignment check of the high speed shaft Gearbox internals overview
Gearbox inspection Bearing inspection Bearing inspection
Static tooth contact pattern check
New pinion shaft for Renk Tacke gearbox
Click the thumbnails to enlarge