Cutter head for a ground cutter machine having rotary cutters
AssigneeCompagnie du Sol
InventorsPhilippe Chagnot, Laurent Pivert
Life of this patent
Estimating the term…
Abstract
The invention relates to a cutter head for a ground cutter machine having at least one cutter motor. Each cutter motor comprises: two hydraulic motors, each comprising a stator and a rotor and having a common axis; a single shaft extending along said common axis and having two ends; two cutter drums mounted to rotate; two transmission assemblies for drivingly connecting each end of the common shaft to one of said cutter drums; and mechanical members for constraining the rotor of each hydraulic motor directly in rotation with the transmission assembly corresponding to the cutter drum that is closer to the hydraulic motor.
Claims12
A cutter head for a ground cutter machine having at least one cutter motor, each cutter motor comprising:
- two hydraulic motors, each comprising a stator and a rotor and having a common axis;
- a single shaft extending along said common axis and having two ends;
- two cutter drums mounted to rotate;
- two transmission assemblies for drivingly connecting each end of the common shaft to one of said cutter drums;
- and
- mechanical members for fixing the rotor of each hydraulic motor directly with the transmission assembly corresponding to the cutter drum that is closer to the hydraulic motor, whereby the rotors of the hydraulic motors are directly fixed to the transmission assemblies so there is no relative movement between the rotor of each hydraulic motor and the cutter drum that is closer to the hydraulic motor during rotation of the rotor.
A cutter head for a ground cutter machine having at least one cutter motor, each cutter motor comprising:
- two hydraulic motors, each comprising a stator and a rotor and having a common axis;
- a single shaft extending along said common axis and having two ends;
- two cutter drums mounted to rotate;
- two transmission assemblies for drivingly connecting each end of the common shaft to one of said cutter drums;
- and
- mechanical members for constraining the rotor of each hydraulic motor directly in rotation with the transmission assembly corresponding to the cutter drum that is closer to the hydraulic motor,
- wherein each transmission assembly comprises a disk-shaped structure having its center secured to one end of said common shaft and having its periphery secured to one of the cutter drums, and
- wherein the mechanical members for providing constraint in rotation comprise clamping screws for providing friction between a face of said disk-shaped structure and a face of the rotor structure.
A cutter head for a ground cutter machine having at least one cutter motor, each cutter motor comprising:
- two hydraulic motors, each comprising a stator and a rotor and having a common axis;
- a single shaft extending along said common axis and having two ends;
- two cutter drums mounted to rotate;
- two transmission assemblies for drivingly connecting each end of the common shaft to one of said cutter drums;
- and
- mechanical members for constraining the rotor of each hydraulic motor directly in rotation with the transmission assembly corresponding to the cutter drum that is closer to the hydraulic motor,
- wherein each transmission assembly comprises a disk-shaped structure having its center secured to one end of said common shaft and having its periphery secured to one of the cutter drums, and
- wherein the rotor has a structure including a face and the disk-shaped structure presents a face, said mechanical constraining members comprising pegs engaged in holes formed in said faces.
Dependencies are inferred from the claim text.