DE1621058C - Power feed roller - Google Patents

Description

Coolant dispensed with and can be switched to air cooling. Has been particularly beneficial the compressed air that is already present in every operation is shown here, as well as its flow velocity can be changed relatively easily within wide limits.

In the drawing, the invention is shown using an exemplary embodiment. It shows

F i g. 1 shows a simplified longitudinal section through the power supply roller, and

F i g. 2 a scheme for the coolant supply and discharge.

On the shaft 1 of the roll mantle 2 slices 3, 3 a are welded in width, which in turn are connected in the same manner with the casing. 2

At an appropriate distance from the roll shell 2 is another shell 2a, and at the same distance from the flange disks 3, 3 α, the disks 3fe and 3c are attached. This results in water-tight or gas-tight chambers compared to the interior space 4 penetrated by the shaft 1. At both ends, the shaft is provided with central bores 1 a , 1 b , which are used to supply or discharge the coolant. The central bores ending in the interior of the power supply roller merge there into radial bores lc, Id that are offset in a crosswise manner.

For the forced guidance of the coolant inside the chambers, these are spiral-shaped Guide plates 5 provided.

The coolant - either water or (compressed) air - is passed through the bore 1 a into the shaft 1. From there it passes through the radial bores 1 d into the chamber formed by the disks 3 a, 3 c and is spirally transported through the guide plates 5 to the bore 6, which connects to the shaft-parallel chamber formed from shells 2, 2 a. Also the transport of the coolant in this chamber takes place through the 5th in their arranged guide plates via the holes 6 a enters the refrigerant now in the constituted by the discs 3, 3 further chamber, from where it is continuously transported there through baffles to the Radial bores 1 c, which then clear the way to the drain through the central bore arranged in the shaft 1 to the outside.

All details that do not serve to guide the coolant are in the description as well as in the drawing has been omitted.

1 sheet of drawings

Claims (3)

As a result, the gentle inertia forces caused excessive patent claims: disruptive vibrations causing wear in the roller bearings. In addition, required 1. All-round closed power supply - this formation of the roller has a considerable roller, especially for use with the 5 cooling water throughput per unit of time,
electrolytic treatment of strips, with the ^ present. The invention has the task of supplying and discharging coolant through the cavities provided with, 'such Märigel and disadvantages of eliminating crosswise radial bores is firmly connected to the roll shell, ge ίο the hollow shaft and consists essentially of characterized by one within the one within the power supply roller by . Power supply roller through guide devices guide devices forcibly guided coolant flow, (5) Forcibly guided coolant flow, which is fed to the feed side after exiting the cross On the forward side (1 ä) after exiting the cross bores, first one on the side of the roller stanchions (1 rf) initially a guide device arranged on the disc that closes off the roller Lich closing disc (3 a) arranged processing chamber passes, then into a through interior Leiteinrichtungskammer (3 a, 3 c) passes, so- and outer jacket formed further Leiteinrichtungs- then enters a chamber through the inner and outer jacket and finally a third guide inlet (2 a, 2) formed further guide device chamber is supplied to the direction chamber, the discharge side arrives and finally a third guide device on the disk closing off the roller there processing chamber (3, 3 b) is fed, which is installed, from which he after passing the cross drilling on the tongue side (1 b) where the roller exits to the outside again, ßenden disc (3) is installed, of which he according to a feature essential to the invention After passing the cross bores (1 c) again, the guide devices consist of spiral-shaped exits outside. 25 curved thin sheets. 2. Power supply roller according to claim 1, that the connection of the guide device chambers he through characterized in that the guiding devices follows another feature of the invention in (5) made of spirally-bent thin sheet metal essentially through axially parallel to the shaft, however exist. Holes offset by 180 ° to each other. 3. Power supply roller according to claim 1 30 If the power supply roller is operated with and2, characterized in that for the connection DC voltage, after a further formation of the guide device chambers (3 a, 3 c; feature of the invention a gaseous coolant 2, 2 α, 3, 3 ft) axially used essentially for the shaft (1), which is made up of air, preferably compressed air, parallel, but offset from one another by 180 °. Bores (6, 6 α) are arranged. 35 The advantages that the proposed invention with are plausible and convincing: Compared to the known power supply roller, which for reasons of mechanical strength proportionally had to be trained massively, leaves 40 the power supply roller according to the invention by applying the chamber principle at least same strength make relatively thin-walled, which leads to a not inconsiderable weight The invention relates to a closed on all sides reduction led. The spiral-shaped guide plates located between the chamber walls, in particular for use, stiffen the roller even further in mechanical terms during the electrolytic treatment of strips,
the od. The like. As a further essential advantage of the invention The power supply roller, which is generally made of copper and / or steel, should also be mentioned that existing power supply rollers are those in the rotational movement, especially in the usual operating phase of the system operated with mains AC voltage, occurring inertia forces and therefore require inadmissibly high dimensions of the chambers in order to avoid them Warming up an intensive cooling. mern, and thus the amount of cooling water throughput a power supply roller is already vorgeszes, can be set relatively precisely so that have been suggested, the cooling of which by water leads to critical operating states with certainty at this point. According to this proposal, the water reached should be avoided. In addition, contribute to this from the outside first in one of the holes in the power supply and also in the holes offset by 180 ° to one another centrally arranged roller with an axially parallel one for the cooling water flow from chamber to chamber lelen drilled shaft. This longitudinal hole at. ended inside the roller at right angles to it- by the proposed invention of ordered crosswise radial bores. At the 60 dimensioning of chambers, which can be precisely defined in advance, on the opposite side of the roll, the water reached the size of the merge and the coolant flow rate can be reduced at the same time Via the same cross-bores in which the cooling effect also determine relatively precisely what-how-hollow bores the shaft and from this back to the other to a reduction of the cooling water export. need, and thus to increase the effectiveness This solution had the disadvantage that 65 degrees of the plant contribute. the power supply roller when starting the approach. It has also been shown to be advantageous that was only half filled with cooling water; with power supply rollers, which are in the same spandie due to the rotational movement of the water, it can be driven completely to liquid