Tie rod assembly structure, gas turbine having same, and tie rod assembly method
AssigneeDoosan Enerbility Co., Ltd.
InventorYoung Seob Kwak
Life of this patent
Estimating the term…
Abstract
A tie rod assembly structure, a gas turbine having the same, and a method of assembling tie rod are provided. The tie rod assembly structure includes a tie rod on which a plurality of rotor disks are mounted, a bearing support shaft mounted to the tie rod to support the rotor disks and on which a bearing is mounted, a first nut mounted on the tie rod on one side of the bearing support shaft, and a second nut that is fastened to the first nut to tension the tie rod and then is in close contact with the bearing support shaft to support the bearing support shaft.
Claims20
A tie rod assembly structure comprising:
- a tie rod on which a plurality of rotor disks are mounted;
- a bearing support shaft mounted to the tie rod to support the rotor disks and on which a bearing is mounted;
- a first nut mounted on the tie rod on one side of the bearing support shaft;
- and
- a second nut that is screwed to the first nut to tension the tie rod and then is in close contact with the bearing support shaft to support the bearing support shaft.
A gas turbine comprising:
- a compressor configured to compress external air;
- a combustor configured to mix fuel with air compressed by the compressor to combust an air-fuel mixture;
- and
- a turbine having a turbine blade mounted on a turbine rotor disk and configured to be rotated by the combustion gas discharged from the combustor,
- wherein the turbine comprises:
- a tie rod on which a plurality of rotor disks are mounted;
- a bearing support shaft mounted to the tie rod to support the rotor disks and on which a bearing is mounted;
- a first nut mounted on the tie rod on one side of the bearing support shaft;
- and
- a second nut that is screwed to the first nut to tension the tie rod and then is in close contact with the bearing support shaft to support the bearing support shaft.
A method of assembling tie rod comprising:
- mounting a plurality of rotor disks on a tie rod;
- mounting a bearing support shaft on the tie rod;
- fastening a first nut to which a second nut is fastened to the tie rod;
- tensioning the tie rod with a tensioner;
- and
- screwing the second nut to come into close contact with one side of the bearing support shaft.
Dependencies are inferred from the claim text.