DEVICE FOR COUPLING COOLANT DUCT OF A ROTATING PART

摘要

The invention relates to a device for coupling the coolant duct of a rotating part such as a supporting and transporting roller which is mounted in bearings via pins and through which a coolant flows via an axial bore in the pin. The pin is connected to a coolant duct which can be connected at one end to a coolant inlet and outlet and at the other opens out in the region of the pin bore. A compensator is provided between the inlet and outlet region of the cooling medium and the pin bore. Said compensator acts elastically to prevent movement between the pin and the fixed parts of the system, co-operates with a seal in this intermediate region and is so connected by its end facing the rotating part to the pin of the rotating part as to be incapable of rotating. The end (12) of the compensator (11) facing away from the rotating part (1) is connected to a friction ring (13) of a friction ring seal so as not to rotate and the stationary friction ring (14) of the seal is supported on its inner side on a floor-like projection of a receiving sleeve (16); said receiver sleeve is detachably connected to a frame element (2) of the bearing of the rotating part (19 and encloses the compensator (11) and influences the latter's bias.