| 摘要 |
<p>1. Annular rotating hydraulic joint of stabilized temperature, intended for conveying a pressurized fluid between a stationary source and a rotating receiver, the said joint comprising a shaft which is fastened to the receiver and on the surface of which open out the fluid feed ducts, two rolling bearings fastened to the shaft on either side of the orifices of the ducts, a static sleeve mounted on the bearings and carrying the fluid inlet and fluid outlet, sealing means for the passage of the fluid from the sleeve to the rotating shaft, characterized in that it comprises a device for adjusting a leakage passage, for the incoming fluid, this passage being defined on the one hand, by a conical surface formed on an axially movable ring having radial grooves (19A, 19B) opposite the orifices of the ducts of the rotating shaft and, on the other hand, another conical surface (22) formed on shaft (1), the device further comprising means for axially moving the ring (18) which comprise axial chambers (23) provided in the periphery of the ring and communicating with at least one radial groove (19A, 19B), at least one tappet (25) sliding in each chamber and capable of interacting with one of the stop rings (9, 12) of the bearings (7, 8), in order to move the ring (18) in respect of the shaft conical surface (22) counter to the action of elastic elements (21) arranged between the ring and the other stop ring (12, 9) of the bearings (8, 7).</p> |
