| 摘要 |
A device is disclosed for joining at least two elements. One element has a pin (1) and the other element has a reception (2) for the pin (1). At least one circumferential area of the pin (1) has at least one cam (5) that radially projects over an imaginary cylindrical surface (4) and the reception has in its circumferential direction a number of grooves (8) corresponding to the number of cams (5) and which radially deepen an imaginary cylindrical surface (7). The cams (5) and grooves (8) are designed as wedge profiles whose wedging surfaces (6, 9) substantially follow the path of a logarithmic spiral with respect to the axis of the pin (1) or reception (2). The pitch of cooperating wedging surfaces (6, 9) has the same value and is so flat that when the cooperating wedging surfaces (6, 9) contact each other following an increase in the joining pressure, a self-locking, clearance-free frictional engagement is ensured between the pin (1) and the reception (2), independently of the direction of rotation and of the stress direction, both radial and axial. |
