SUPPORTING ELEMENT AND MACHINE FOR MACHINING LARGE CRANKSHAFTS

摘要

The invention relates to a supporting element and a machine for machining large crankshafts, enabling the anchoring of a crankshaft (1) to be machined and the transmission of a torque thereto using a rotation shaft (2). The invention includes zero-clearance rotation transmission means comprising at least a first endless screw (3) and at least a second endless screw (4) which are functionally connected to a crown wheel (5) configured to transmit torque to the crankshaft (1). According to the invention, the first endless screw (3) is functionally connected to the second endless screw (4) and the connection area between the first endless screw (3) and the crown wheel (5) is different from the connection area between the second endless screw (4) and the crown wheel (5).