| 摘要 |
A device for coupling two rotary machines with provision for automatic uncoupling under certain operational conditions, comprising a first shaft and a second shaft in two parts which are connected for motion transmission in a first sense by a dog clutch connection and in a second sense by an intermediate co-axial shaft and transverse pins. In the first sense an accidental excess torque is limited by fracture of a frangible groove section disposed in the first shaft. In the second sense in which a substantially lower torque is exerted, this is limited by the fracture of a second frangible groove section disposed in the intermediate shaft. After fracture of this second groove section, the first shaft and one part of the second shaft will become spaced apart and the one shaft part is maintained in this position by a blocking mechanism comprising at one end a cylindrical bush accommodating a radial spring and balls which are displaced to an internal groove of the other shaft part. |
