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US 2018/0258765 A1Published application
Tunnel boring machine
AssigneeHitachi Zosen Corporation
InventorsToshiyuki OKADA, Takayuki IWAMURO
Life of this patent
Estimating the term…
Abstract
A tunnel boring machine includes: a cutter head; a cutter support; a cutter driving unit; a rotational position sensing unit; a strain sensor; and a data processing unit configured to calculate a force acting on the cutter head in association with the position of the cutter head in the rotational direction, based on sensing results of the strain sensor and the rotational position sensing unit.
Claims6
A tunnel boring machine comprising:
- a cutter head;
- a cutter support supporting the cutter head and configured to rotate with the cutter head;
- a cutter driving unit configured to rotationally drive the cutter head and the cutter support;
- a rotational position sensing unit configured to sense a position of the cutter head in a rotational direction;
- at least one strain sensor provided in a cutter spoke itself of the cutter head or the cutter support;
- and
- a data processing unit configured to calculate a force acting on the cutter head in association with the position of the cutter head in the rotational direction, based on sensing results of the at least one strain sensor and the rotational position sensing unit.
4 more elements
A tunnel boring machine having an intermediate support structure, comprising:
- a cutter head;
- a cutter column, which is a cutter support supporting the cutter head and configured to rotate with the cutter head;
- a cutter driving unit configured to rotationally drive the cutter head and the cutter support;
- a rotational position sensing unit configured to sense a position of the cutter head in a rotational direction;
- a strain sensor provided in the cutter column;
- and
- a data process unit configured to calculate a force acting on the cutter head in association with the position of the cutter head in the rotational direction, based on sensing results of the strain sensor and the rotational position sensing unit.
4 more elements
A tunnel boring machine comprising:
- a cutter head;
- a cutter support supporting the cutter head and configured to rotate with the cutter head;
- a cutter driving unit configured to rotationally drive the cutter head and the cutter support;
- a rotational position sensing unit configured to sense a position of the cutter head in a rotational direction;
- a strain sensor provided in a cutter spoke itself of the cutter head;
- and
- a data processing unit configured to calculate a force acting on the cutter head in association with the position of the cutter head in the rotational direction, based on sensing results of the strain sensor and the rotational position sensing unit.
4 more elements
Dependencies are inferred from the claim text.