US 12,140,215 B2
Gear mechanism for a rolling mill drive, rolling mill drive with a gear mechanism, and use of the gear mechanism as a rolling mill gear mechanism
Markus Cramer, Attendorn (DE); Jan Steinseifer, Hilchenbach (DE); and Klaus Lazzaro, Kirchhundem (DE)
Assigned to SMS group GmbH, Düsseldorf (DE)
Appl. No. 18/011,118
Filed by SMS group GmbH, Düsseldorf (DE)
PCT Filed Jun. 16, 2021, PCT No. PCT/EP2021/066170
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2021/255059, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 10 2020 207 477.1 (DE), filed on Jun. 17, 2020; and application No. 10 2021 206 054.4 (DE), filed on Jun. 15, 2021.
Prior Publication US 2023/0272847 A1, Aug. 31, 2023
Int. Cl. F16H 55/08 (2006.01)
CPC F16H 55/08 (2013.01) [F16H 2055/0893 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A rolling mill drive, comprising:
a gear mechanism (6), including
an involute cylindrical gear tooth system between at least two intermeshing gear wheels (3) with asymmetrical gearing,
wherein a normal pressure angle of load-bearing tooth flanks (5) of the gear wheels (3) is greater than 20° and less than or equal to 30°, and
wherein a normal pressure angle of trailing flanks (4) of the gear wheels is greater than or equal to 14° and less than 22°,
wherein the asymmetrical gearing causes an increased load capacity of the gear mechanism (6) compared to an equivalent gear mechanism with symmetrical gearing having identical normal pressure angles on load-bearing tooth flanks and trailing flanks, and
wherein the asymmetrical gearing causes the load capacity of the gear mechanism to increase by at least 12%.