US 12,460,979 B2
Torque transmission and measurement assembly for a turbomachine
Benjamin Nicolas Fulleringer, Moissy-Cramayel (FR); Rémi Joseph Lanquetin, Moissy-Cramayel (FR); and Arnaud Georges Nifenecker, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 18/270,287
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Dec. 29, 2021, PCT No. PCT/FR2021/052466
§ 371(c)(1), (2) Date Jun. 29, 2023,
PCT Pub. No. WO2022/144530, PCT Pub. Date Jul. 7, 2022.
Claims priority of application No. 2014235 (FR), filed on Dec. 30, 2020.
Prior Publication US 2024/0053213 A1, Feb. 15, 2024
Int. Cl. G01L 3/08 (2006.01)
CPC G01L 3/08 (2013.01) 10 Claims
OG exemplary drawing
 
1. An assembly (1) for transmitting and measuring a torque transmitted between a first member and a second member (16) of a turbomachine, comprising:
a pinion (2) which includes a first annular portion (5) and a second annular portion (6) joining together at a connecting portion (7) carrying a gearing (4) of the pinion (2), said first and second annular portions (5, 6) extending axially according to an axis of rotation (X) of the pinion (2) in opposite directions (D1, D2), from the connecting portion (7), at least one of said annular portions (5, 6) being guided in rotation by a guide bearing (8, 9) of the pinion (2), the pinion further including a power shaft (10) extending axially, said power shaft (10) including a first area (11) coupled in rotation to the first annular portion (5) of the pinion (2), and a second area (12) for coupling in rotation to the second member (16) of the turbomachine, the first area being spaced axially apart from the second area, and
means for measuring the torsion of the power shaft (10) disposed at a third area of the power shaft (10) located between the first and second areas (11, 12), said means for measuring including
a first phonic wheel (20) equipping the third area of the power shaft (10),
a second phonic wheel (25) equipping the second annular portion (6) of the pinion (2) and axially aligned with the first phonic wheel (20), and
an acquisition means (27) axially aligned with and opposite the first phonic wheel (20) and the second phonic wheel (25) and being configured to output a signal representative of an angular variation between the first phonic wheel (20) and the second phonic wheel (25).