Pellet press
AssigneeBuhler AG
InventorsWalter Signer, Roger Räss, Andrea Hermsmeyer
Life of this patent
Estimating the term…
Abstract
A pellet press having a motor with a motor housing and a rotor arranged rotatably in the housing. The rotor is a hollow shaft. A pressing mechanism has a pressing mold and pressing rolls arranged in the pressing mold. The rolls are fastened to a stationary shaft. The stationary shaft is arranged in the rotor designed as the hollow shaft. A mold holder is operationally connected to the pressing mold. The mold holder and the rotor are connected to each other by a shaft-hub connection such that a transmission of a torque of the rotor to the mold holder is ensured.
Claims17
A direct drive pellet press comprising an electric motor having a motor rotor, the motor rotor is housed within a motor housing, the motor rotor being rotatably arranged within the motor housing so as to rotate about an axis,
- wherein the motor rotor is formed as a hollow shaft,
- a pressing unit having a pressing mold and pressing devices, and the pressing devices being arranged in said pressing mold,
- said pressing devices being fixed to a stationary shaft so as to prevent relative rotation between the pressing devices and the stationary shaft,
- the stationary shaft axially extending within said motor rotor,
- a mold holder being operatively connected to the pressing mold, and
- said mold holder having a first element of a spline connection and said motor rotor having a second element of the spline connection, the first element of the spline connection directly meshing with the second element of the spline connection so that a torque of the motor rotor is transferred from the motor rotor directly to the mold holder, wherein the second element of the spline connection is formed as toothing at an axial end of the motor rotor formed as the hollow shaft, and the first element of the spline connection is formed as toothing in the mold holder in a longitudinal direction, which meshes with the toothing of the motor rotor.
A direct drive pellet press with a motor which has a motor housing and a motor rotor rotatably arranged therein,
- wherein the motor rotor is formed as a hollow shaft and the motor housing concentrically surrounds the motor rotor, an axial end of the motor rotor is formed as a second element of a spline connection,
- a pressing unit with a pressing mold,
- pressing devices being arranged in the pressing mold,
- the pressing devices being fixed to a stationary shaft,
- the stationary shaft being arranged concentrically within the motor rotor and the motor housing so that the motor rotor is rotatably located between the motor housing and the stationary shaft,
- a mold holder being operatively connected to the pressing mold, and having an end that is formed as a first element of the spline connection, and
- the first element of the spline connection of the mold holder directly meshing with the second element of the spline connection of the motor rotor so that a torque of the motor rotor is transferred from the motor rotor directly to the mold holder during operation, wherein the second element of the spline connection is formed as toothing at an axial end of the motor rotor formed as the hollow shaft, and the first element of the spline connection is formed as toothing in the mold holder in a longitudinal direction, which meshes with the toothing of the motor rotor.
Dependencies are inferred from the claim text.