Conveyor pulley, process for producing a roller tube and deforming tool
AssigneeInterroll Holding AG
InventorNiels Hastrup
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Abstract
According to the present invention, a conveyor pulley for use in a belt conveyor is provided, comprising: a roller tube (1); wherein the roller tube (1) is formed by plastically deforming a central portion of a substantially cylindrical metal tube (2) radially outwardly so as to form a crowned portion (4) having an enlarged outer diameter (ODENL) with respect to remaining portions (6) of the metal tube (2).
Claims17
A conveyor pulley for use in a belt conveyor, comprising:
- a roller tube (1);
- wherein the roller tube (1) is formed by plastically deforming a central portion of a substantially cylindrical metal tube (2) radially out so as to form a crowned portion (4) having an enlarged outer diameter (ODENL) with respect to remaining portions (6) of the metal tube (2).
A process for producing a roller tube (1) of a conveyor pulley for use in a belt conveyor, comprising the steps of:
- providing a substantially cylindrical metal tube (2);
- inserting a deforming tool (12) into the metal tube (2), the deforming tool (12) having a radially outwardly expandable deforming portion (18);
- radially outwardly expanding the deforming portion (18) such that a central portion of the metal tube (2) is plastically deformed radially out so as to form a crowned portion (4) having an enlarged outer diameter (ODENL) with respect to remaining portions (6) of the metal tube.
A deforming tool (12) for forming a crowned portion (4) of a roller tube (1) of a conveyor pulley for use in a belt conveyor, comprising:
- an actuator (14);
- a shaft (16);
- and
- a radially outwardly expandable deforming portion (18) arranged at an end of the shaft (16);
- wherein the deforming tool (12) is configured to be inserted into a substantially cylindrical metal tube (2) and plastically deforming a central portion of the metal tube (2) radially outwardly by radially outwardly expanding the deforming portion (18).
Dependencies are inferred from the claim text.