Clamping cylinder for an electrode slipping device

Patent metadata

Field	Value
Publication number	US-10045404-B2
Application number	US-201414902620-A
Country	US
Kind code	B2
Filing date	Jun 25, 2014
Priority date	Jul 5, 2013
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

An electrode slipping device comprises an upper holder and a lower holder, both holders containing one or more clamping shoes and one or more clamping cylinders in co-operation with the clamping shoes. The clamping shoes are operable between a position where the electrode is clamped and a position where the electrode is unclamped. The clamping cylinder is connected to the electrode holder by first fastening means and to the clamping shoe by second fastening means such that the clamping cylinder can be released from engagement with the holder by unlocking both sets of fastening means.

First claim

The invention claimed is:

1. A clamping cylinder for an electrode slipping device which comprises an upper annular holder ring and a lower annular holder ring, both containing one or more clamping assemblies including a clamping shoe and the clamping cylinder arranged in co-operation so that the clamping shoe is operable between a clamping position and a releasing position wherein the clamping cylinder is connectable to the annular holder ring by first fastening means and to the clamping shoe by second fastening means, and that the clamping cylinder can be released from engagement with the annular holder ring by unlocking both fastening means,
wherein the clamping cylinder comprises a stationary cylinder element, which is connectable to the annular holder ring by first fastening means, and a movable cylinder element, which is connectable to the clamping shoe by second fastening means, and
wherein drawers which are retained in contact with the clamping shoe by the second fastening means and a pressing piece that is pressed against the clamping shoe to force the clamping shoe against the electrode are mounted to an end wall of the movable cylinder element.

2. The clamping cylinder of claim 1 , wherein the first and second fastening means comprise studs, screws, bolts, nuts, or a combination of them.

3. The clamping cylinder of claim 1 , wherein the movements of the movable cylinder element in relation to the stationary cylinder element are effected by fluid pressure, or spring force, or both.

Assignees

• Outotec Finland Oy

Inventors

• Ollila Janne
• Ceder Ari
• Juvonen Seppo
• Rönnberg Tom

Classifications

• H05B7/107 Primary

  specially adapted for self-baking electrodes · CPC title

• H05B7/10 Primary

  Mountings, supports, terminals or arrangements for feeding or guiding electrodes · CPC title

• H05B7/109

  Feeding arrangements (H05B7/107 takes precedence; where the electrode movement is part of a closed loop for automatic control of power H05B7/148) · CPC title

• H05B7/105

  comprising more than two jaws equally spaced along circumference, e.g. ring holders · CPC title