Drying roller and a method for the production of same

• US 10,066,340 B2
• Filed: 06/02/2014
• Issued: 09/04/2018
• Est. Priority Date: 07/05/2013
• Status: Active Grant

• Current Assignee: Voith Patent Gmbh
• Original Assignee: Voith Patent Gmbh
• Inventors: Brujas, Marco, Consolato, Robson
• Primary Examiner(s): Vaughan, Jason L
• Application Number:
  US14/902,887
• Publication Number:
  US 20160145804A1
• Time in Patent Office: 1,555 Days
• Field of Search: 34110, 34454, 219101, 219102, 219104, 219105, 219 57, 219 58, 228168, 228169, 8110, 8454
• CPC Class Codes: D21F 5/021 Construction of the cylinders
• CPC Class Codes: D21F 5/028 using steam

Abstract

A drying roller includes at least a cylindrical cylinder shell, two caps which are attached to both sides of the cylinder shell, and two journals which are indirectly fastened to the caps by way of a hollow shaft which is connected to the caps or are directly fastened to the caps, wherein the cylinder shell and the caps are welded to one another by way of an annular weld seam. The weld seam has a joint having at least two mutually opposite and parallel flange regions which are mutually spaced apart. A method for manufacturing a drying roller is also described.

Claims

1. A drying roller, comprising:

a cylindrical cylinder shell having two outer sides and an interior;

two caps each being attached to a respective one of said sides of said cylinder shell;

two journals each being fastened to a respective one of said caps; and

an annular weld seam welding one of said caps to one of said outer sides of said cylinder shell, said weld seam having a joint with at least two mutually opposite and parallel flange regions being mutually spaced apart, said parallel flange regions extending to said interior of said cylindrical cylinder shell, said parallel flange regions forming a minority portion of said joint.

2. The drying roller according to claim 1, which further comprises a hollow shaft connecting each of said journals to a respective one of said caps.

3. The drying roller according to claim 1, wherein said weld seam is welded without a counter bead.

4. A drying roller, comprising:

a cylindrical cylinder shell having two outer sides and an interior;

two caps each being attached to a respective one of said sides of said cylinder shell;

two journals each being fastened to a respective one of said caps;

an annular weld seam welding one of said caps to one of said outer sides of said cylinder shell, said weld seam having a joint with at least two mutually opposite and parallel flange regions being mutually spaced apart, said parallel flange regions extending to said interior of said cylindrical cylinder shell, said parallel flange regions forming a minority portion of said joint;

said caps and said cylinder shell each having radially inward cylindrical workpiece faces on both sides of said weld seam; and

at least one of said caps having a closable or closed inspection opening.

5. The drying roller according to claim 4, which further comprises a hollow shaft connecting each of said journals to a respective one of said caps.

6. A drying roller, comprising:

a cylindrical cylinder shell having two outer sides and an interior;

two caps each being attached to a respective one of said sides of said cylinder shell;

two journals each being fastened to a respective one of said caps;

an annular weld seam welding one of said caps to one of said outer sides of said cylinder shell, said weld seam having a joint with at least two mutually opposite and parallel flange regions being mutually spaced apart, said parallel flange regions extending to said interior of said cylindrical cylinder shell, said parallel flange regions forming a minority portion of said joint; and

a condenser;

said cylinder shell having a cylindrical radially inward workpiece face between said condenser and said weld seam.

7. The drying roller according to claim 6, which further comprises a hollow shaft connecting each of said journals to a respective one of said caps.

8. The drying roller according to claim 6, wherein said condenser has at least one encircling groove.

9. The drying roller according to claim 6, wherein said condenser has a plurality of encircling grooves.

10. The drying roller according to claim 6, which further comprises at least one of a machined transitional radius or a transitional groove provided between said cylindrical inward workpiece face of said cylinder shell and said condenser.

11. The drying roller according to claim 10, which further comprises at least one machined transitional radius disposed between a groove flank of said transitional groove and a groove base of said transitional groove.