Patent · US Expired

Rotary lead-through for the coolant inflow and outflow of a back-up and/or conveyor roller which is rotably held in a bearing arrangement at the end

US7152660B2 · kind B2 · utility

2Cited by

1References

4Claims

0Family size

Assignee

THYSSEN KRUPP STAHL AG · DE

Inventors

Erich Bergmans · Oberhausen, DE
Gerhard Grelewitz · Rheinberg, DE
Walter Krume · Rheinberg, DE

Key dates

Filing date	Mar 12, 2003
Grant date	Dec 26, 2006
Priority date	—
Expiry date	Jul 5, 2023

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21B2027/083
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a rotary lead-through for the coolant inflow and outflow of a back-up and/or conveyor roller (1) which is held in a bearing arrangement at the end at least by means of bearing journals (10) located in bearing blocks (11), in particular in a continuous casting plant. To compensate for the axial movement and oscillating movement of the back-up and/or conveyor roller during operation, the bearing (9) at one end, to which the coolant inflow line and the coolant outflow line is connected, is a fixed axial bearing which is nevertheless able to absorb oscillating movement, while the other bearing is a detached axial bearing. In this way it is possible to provide on the fixed axial bearing a rotary lead-through, without a compensator, between the bearing journal (10) and a covering plate (12), wherein a fixed sleeve (16), sealed in the bearing journal (10), is sealed at the covering plate (12) by means of a rotary shaft sealing ring (18) which makes it possible for relative rotary movement and oscillating movement to occur.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.