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US 2018/0216460 A1Published application
Cutting apparatus
AssigneeSandvik Intelectual Property AB
InventorsBernhard EBNER, Christoph HABERER, Georg SCHERZ
Life of this patent
Estimating the term…
Abstract
A cutting apparatus suitable for creating tunnels and subterranean roadways includes independently pivoting supports that each carry a respective independently pivoting arm and a rotatable cutting head. Each cutting head via the supports and arms, is configured to slew laterally outward in a sideways direction and to pivot in a vertical upward and downward direction. The supports and arms are mounted on a linear moving sled carried by a main frame.
Claims20
A cutting apparatus suitable for creating tunnels or subterranean roadways and the like comprising:
- at least one arm pivotally mounted to the apparatus and adapted to pivot in an upward and downward direction;
- at least one arm actuator to actuate pivoting movement of the at least one arm, wherein the actuator includes a drive motor unit and a drive train coupled to the drive motor unit, the drive motor unit and drive train being configured for selective operation in one of:
- a first operating mode in which a first pivoting velocity and a first torque are transmitted to the at least one arm, or a second operating mode in which a second velocity and a second torque are transmitted to the at least one arm, the first velocity being lower than the second velocity and the first torque being higher than the second torque.
Dependencies are inferred from the claim text.