Axial setting device with linear driving mechanism

摘要

The disclosure relates to a coupling assembly for connecting an optionally drivable secondary driveline to a permanently driven primary driveline, comprising a friction coupling and an axial setting device. The friction coupling has a first coupling part and a second coupling part which are rotatable around an axis of rotation A and which, by axial forces, can be coupled to one another for transmitting torque. The axial setting device is configured for actuating the friction coupling, wherein the axial setting device comprises a first ring which is at least indirectly axially supported relative to a fixed component and a second ring which is supported at least indirectly relative to the first ring and which, when at least one of the first and second rings; is rotated around the axis A, is axially displaceable, wherein, for rotating the at least one of the first and second rings there is provided a linear driving mechanism.

主权项

1. A coupling assembly for connecting an optionally drivable secondary driveline to a permanently driven primary driveline, comprising:
a friction coupling with a first coupling part, a second coupling part, a pressure plate and a plate package, wherein the first coupling part and the second coupling part are rotatable around an axis of rotation and, by axial forces loading the plate package, can be coupled to one another for transmitting torque; and an axial setting device for actuating the friction coupling, wherein the axial setting device comprises a first ring and a second ring which is axially supported at least indirectly relative to the first ring and which, when one of the first and the second rings is rotated relative to the other one of the first and second rings around the axis of rotation, is axially displaceable, wherein the first ring and the second ring of the axial setting device are rotatingly supported relative to the first coupling part around the axis of rotation by a respective first axial bearing and second axial bearing, wherein the first ring and the second ring each include a ramp face, the pressure plate having a recess axially receiving a portion of the second ring such that the pressure plate radially surrounds the ramp face of the second ring; wherein said first axial bearing is axially supported against the first coupling part in a first axial direction, wherein said second axial bearing is interposed between the second ring and the pressure plate such that the pressure plate loads the plate package upon axial movement of the second ring in a second axial direction, wherein the plate package of the friction coupling is axially supported against the first coupling part in said second axial direction, wherein, for rotating the at least one of the two rings, there is provided a linear driving mechanism; and wherein the linear driving mechanism acts on one of the first and second rings so as to rotate said one of the first and second rings, whereas another one of the first and second rings is held so as to be rotationally fixed relative to a stationary component.