Back to results
US 12,140,375 B2Granted
Mounting a ceramic roller in a roller hearth furnace
AssigneeSchwartz GmbH
InventorsChristian Naderer, Andreas Reinartz
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeSchwartz GmbH
InventorsChristian Naderer, Andreas Reinartz
Estimating the term…
Sleeve for mounting a ceramic roller in a roller hearth furnace, the sleeve has a receptacle for one end of the ceramic roller, the receptacle being surrounded by a lateral wall. The lateral wall has, in the axial direction, a waist portion and a clamping portion, wherein a wall thickness (d) of the lateral wall in the waist portion is smaller than in the vicinity of the waist portion, and a cross-sectional area of the receptacle in the clamping portion is smaller than in the vicinity of the clamping portion. A ceramic roller can be mounted in a roller hearth furnace by the sleeve, even at high temperature. During production, the sleeve is provided with a reduced cross-sectional area in the clamping portion. When the sleeve is pressed axially onto the end of a ceramic roller, the reduced cross-sectional area produces an elastic force, with the sleeve being held on the ceramic roller.
Sleeve for mounting a ceramic roller in a roller hearth furnace, wherein the sleeve has a receptacle for one end of the ceramic roller, wherein the receptacle is surrounded by a lateral wall, wherein the lateral wall has, in the axial direction, a waist portion and a clamping portion, the clamping portion being located inside the waist portion, such that the clamping portion does not protrude beyond or coincide with the waist portion, wherein a wall thickness (d) of the lateral wall in the waist portion is smaller than a wall thickness (d) of first and second portions of the lateral wall that are on respective first and second sides of the waist portion, and wherein a cross-sectional area of the receptacle in the clamping portion is smaller than a cross-sectional area of the receptacle that is adjacent to the clamping portion.
Set comprising a ceramic roller for a roller hearth furnace and a sleeve for mounting the ceramic roller in the roller hearth furnace, wherein the sleeve has a receptacle for one end of the ceramic roller, wherein the receptacle is surrounded by a lateral wall, wherein the lateral wall has, in the axial direction, a waist portion and a clamping portion, the clamping portion being located inside the waist portion, such that the clamping portion does not protrude beyond or coincide with the waist portion, wherein a wall thickness (d) of the lateral wall in the waist portion is smaller than a wall thickness (d) of first and second portions of the lateral wall that are on respective first and second sides of the waist portion, and wherein a cross-sectional area of the receptacle is smaller only in the clamping portion than a cross-sectional area of the end of the ceramic roller.
Method for mounting a sleeve on a ceramic roller for a roller hearth furnace, wherein the sleeve for mounting the ceramic roller in the roller hearth furnace is formed, wherein the sleeve has a receptacle for one end of the ceramic roller, wherein the receptacle is surrounded by a lateral wall, wherein the lateral wall has, in the axial direction, a waist portion, the clamping portion being located inside the waist portion, such that the clamping portion does not protrude beyond or coincide with the waist portion, wherein a wall thickness (d) of the lateral wall in the waist portion is smaller than a wall thickness (d) of first and second portions of the lateral wall that are on respective first and second sides of the waist portion, and wherein the method comprises:
Dependencies are inferred from the claim text.