| 摘要 |
In a coupling (9) between a hub (10) and a shaft (11) internal splines (12) of the hub are interdigitated with external splines (13) of the shaft. The splines are helical. The hub and shaft are further connected by axial pins (14) arranged in bores (15) which are parallel to the common axis (16) of the hub and the shaft and which intersect the interdigitated splines. A screw (21) in the hub engages an end (24) of the shaft. When the screw is tightened the hub is drawn along the hub. The different helix angle of zero result in that the hub becomes locked against axial movement on the shaft and the splines of the hub are urged circumferentially into engagement with the splines of the shaft thereby to take up circumferential clearance between them. The force applied by the screw applies compression to the shaft and tension to the hub so that Poisson's Law opperates to close radial clearance between the hub and the shaft. |
