Spur gear drive for turbo-engine testing - has separate gears for coupled drive wheels enabling high power operation

摘要

One drive wheel (20) is connected to a further drive wheel (33) via an intermediate wheel (40) that engages both. It is developed from similar devices at low cost to enable a specific high power to be transferred. This is achieved without reducing the safety margins of the intermediate wheel against tooth fracture below requirements and without exceeding max. permissible heating. The intermediate wheel has two axially adjacent gear sets (43,43') separated by an annular slot (44). One gear set (43) is connected to the first drive wheel only and the other set (43') to the second drive wheel (43') only. The drive wheels are offset by the gear width of one of them. The intermediate wheel is as wide or wider than the sum of the drive wheel widths.