초록 ▼

Apparatus for providing supplementary cooling to the thrust bearing of a vertical shaft machine, without requiring an additional exterior pump and motor, has an oil conducting path formed by grooves in the engaging surfaces of an upper and a lower portion of each bearing shoe. The oil conducting pat

Apparatus for providing supplementary cooling to the thrust bearing of a vertical shaft machine, without requiring an additional exterior pump and motor, has an oil conducting path formed by grooves in the engaging surfaces of an upper and a lower portion of each bearing shoe. The oil conducting path terminates at an opening on either side of the outer periphery of the shoe. A nozzle is mounted in each opening. The nozzle extends upwardly with a horizontally extending nose portion with the nozzle opening in the end. The nose portion is adjacent the outer periphery of the rotating bearing ring which the shoes support. The ring is mounted to the vertical shaft. The shoes and the ring are immersed in an oil bath. Rotation of the shaft and the ring moves the oil adjacent the periphery of the ring. The nozzles are oriented in opposite directions, preferably facing one another. The oil caused to move by the rotating ring enters the opening in the end of one nozzle, moves through the oil conducting path, and exits from the other nozzle in the direction of oil movement. The apparatus provides supplementary cooling by oil circulation regardless of the direction of rotation.

대표청구항 ▼

In a thrust bearing for a vertical-shaft rotating machine having a rotating ring mounted to said shaft for rotation with said shaft and having a downwardly directed bearing surface, a plurality of segmented bearing shoes each having radially extending sides, an inner and an outer curved end and each

In a thrust bearing for a vertical-shaft rotating machine having a rotating ring mounted to said shaft for rotation with said shaft and having a downwardly directed bearing surface, a plurality of segmented bearing shoes each having radially extending sides, an inner and an outer curved end and each having an upwardly directed bearing surface facing the bearing surface of said rotating ring, and walls defining an oil both in which said rotating ring and said bearing shoes are immersed, an arrangement providing supplementary cooling of said thrust bearing, comprising: at least an upper and a lower portion in each said bearing shoe, the junction between said portions defining a supplementary cooling plane, passages extending in at least one of said upper and lower portions for conducting oil, said passages having a first and a second end terminating at the outer curved end of a respective shoe, said first end being adjacent one of said radially extending sides and said second end being adajcent the other of said radially extending sides, a first and a second nozzle for each said bearing shoe, said first and second nozzles being mounted to the respective shoe and communicating respectively with said first and second end, said nozzles having a vertically extending body portion and a horizontally extending nose portion with an open nozzle end therein, the nose portion of said first and second nozzles being directed in opposite directions whereby oil caused to move by said rotating ring enters the open nozzle end of the nose portion of said first nozzle, moves through the passages of said supplementary cooling plane, and is discharged from the open nozzle end of the nose portion of said second nozzle.