# US 9,873,144 B2 · Reel for winding metal strip

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- Number: US 9,873,144 B2
- Document ID: US9873144B2
- Status: Granted
- Kind: B2
- Application number: 14/771,996
- Filed: 2014-02-17
- Published: 2016-01-21
- Granted: 2018-01-23
- Earliest claimed: 2013-03-01
- Assignees: Primetals Technologies Austria GmbH
- Applicants: Primetals Technologies Austria GmbH
- Inventors: Pascal Ostheimer; Juergen Schiefer
- Web page: https://patentgrep.com/patent/US9873144B2

## CPC

- B21B 1/22: for rolling {plates, strips,} bands or sheets of indefinite length (B21B1/42 takes precedence)
- B21C 47/28: Drums or other coil-holders
- B65H 18/026: {Cantilever type}
- B65H 18/10: Mechanisms in which power is applied to web-roll spindle
- B21B 2001/225: {by hot-rolling}
- B65H 2301/4132: Cantilever arrangement
- B21B: ROLLING OF METAL (auxiliary operations used in connection with metal-working operations covered in B21, see B21C; bending by rolling B21D; manufacture of particular objects, e.g. screws, wheels, rings, barrels, balls, by rolling B21H; pressure welding by means of a rolling mill B23K20/04)
- B21C: MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

A reel for winding metal strip, in particular rolled hot strip, having a mandrel shaft (2), which has a first shaft end piece (18), which is rotably mounted by means of at least one bearing (4) provided in the machine frame (3) of the reel, a clamping device (5) arranged between the at least one bearing (4) and the mandrel shaft (2), such that, in a clamped operating state, a frictional connection can be produced between the at least one bearing (4) and the mandrel shaft (2).

## Claims

### Claim 1

A reel for winding metal strip and hot-rolled strip comprising:
a machine frame;
at least one bearing in the machine frame;
a mandrel shaft having a first shaft end piece which is rotatably mounted by the at least one bearing in the machine frame; and
a clamping device disposed between the at least one bearing and the mandrel shaft, the clamping device being configured and operable such that in a clamped operating state thereof, the clamping device produces a tangential frictional connection between the at least one bearing and the mandrel shaft,
wherein the clamping device is configured to be actuated hydraulically to produce the tangential frictional connection between the at least one bearing and the mandrel shaft.

### Claim 2 (depends on 1)

The reel as claimed in claim 1, further comprising the clamping device has a hydraulically actuated clamping sleeve which is configured to apply radially directed force toward the mandrel shaft when the clamping sleeve is hydraulically activated.

### Claim 3 (depends on 2)

The reel as claimed in claim 2, further comprising the hydraulically actuated clamping sleeve has a hollow cylinder in the clamping sleeve for receiving a hydraulic medium to hydraulically activate the clamping device.

### Claim 4 (depends on 3)

The reel as claimed in claim 3, further comprising the hollow cylinder is configured to be accessible from outside the clamping device via a channel for conducting the hydraulic medium into the hollow cylinder.

### Claim 5 (depends on 4)

The reel as claimed in claim 4, further comprising:
the channel is configured to be closed from outside the clamping device; and
a closure at the channel and configured for closing the channel.

### Claim 6 (depends on 3)

The reel as claimed in claim 3, wherein the hollow cylinder has an axial extent that is wider than the axial width of the associated bearing.

### Claim 7 (depends on 2)

The reel as claimed in claim 2, further comprising the hydraulically actuated clamping sleeve has a hollow cylinder in the clamping sleeve for receiving a hydraulic medium to hydraulically activate the clamping device.

### Claim 8 (depends on 1)

The reel as claimed in claim 1, further comprising the shaft end piece is mounted in two of the bearings which are spaced apart along the mandrel shaft.

### Claim 9 (depends on 1)

The reel as claimed in claim 1, further comprising a rotation drive for rotating the mandrel shaft.