TORQUE TRANSMISSION AND MEASUREMENT ASSEMBLY FOR A TURBOMACHINE

The invention relates to 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) supporting a gear system (4) of the pinion (2), the first and second annular portions (5, 6) extending axially along an axis of rotation (X) of the pinion (2) in directions (D1, D2) opposite from the connecting portion (7), the rotation of at least one of the the annular portions (5, 6) being guided via a bearing (8, 9) for guiding the pinion (2), the pinion further comprising an axially extending power shaft (10), the power shaft (10) comprising a first area (11) rotatably coupled to the first annular portion (5) of the pinion (2), and a second area (12) intended to be rotatably coupled to the second member (16) of the turbomachine, the first area being axially spaced apart from the second area, and means for measuring the torsion of the power shaft (10) which are arranged in a third area of the power shaft (10) located between the first and second areas (11, 12), the measuring means comprising at least one tone wheel (20, 25) and acquisition means capable of engaging with the tone wheel (20, 25), characterised in that the measuring means comprise a first tone wheel (20) provided in the third area of the power shaft (10) and a second tone wheel (25) provided in the second annular portion (6) of the pinion (2) and located axially opposite the first tone wheel (20), the acquisition means being arranged axially opposite the first tone wheel (20) and the second tone wheel (25) and being configured to supply a signal representative of an angular variation between the first tone wheel (20) and the second tone wheel (25). L'invention concerne un ensemble (1) de transmission et de mesure d'un couple transmis entre un premier organe et un second organe (16) d'une turbomachine, comprenant un pignon (2) qui comporte une première partie annulaire (5) et une seconde partie annulaire (6) se rejoignant entre elles au niveau d'une partie de liaison (7) portant une denture (4) du pignon (2), lesdites première et seconde parties annulaires (5, 6) s'étendant axialement selon un axe de rotation (X) du pignon (2) dans des directions (D1, D2), opposées à partir de la partie de liaison (7), l'une au moins desdites parties annulaires (5, 6) étant guidée en rotation par l'interméd