DE93321C - Rolling mill for the production of profiled rolled stock - Google Patents

Description

cite η ^ i '/ i lit.

IMPERIAL

PATENT OFFICE.

The present invention relates to a rolling mill for. Production of profiled rolled bars, in which two horizontal rollers are the insides and a pair of standing rollers to the side of the The former arranged rollers process the outer sides of the roller rod. The invention extends to the means used to drive these rollers together and to the Arrangement of the rollers themselves in connection with another roller system for rolling the profile edges, which are arranged in front of the mentioned, lying rollers in this way is that the rolling stock passes over to the latter rolls before. it is the rollers in front of it expires.

Such a rolling mill is illustrated in the accompanying drawing.

The rolling mill consists of a roller system A for rolling out the profile edges of the roller bars, a second roller system B for processing the inner surfaces, and a third roller system DD ¹ for processing the outer surfaces of the rolling stock. The two roller systems A and B are placed in front of each other in such proximity that the rolling stock can pass directly from one system to the other, with both roller systems being expediently driven at the same speed. The rolling stock is alternately sent back and forth by the rollers A and B as often as is necessary to complete the rolling process.
. The roller system A (FIGS. 1 to 3) consists of two pairs of lying rollers A ¹ A " ² arranged parallel to one another, of which the upper ones are attached to the shaft A ^3.

The latter is vertically adjustable and rests in bearing shells A *, which can be moved up and down in the brackets A ⁵ and rest on a number of vertical rods A ^6. These are connected at their lower ends with weight levers Ä ¹ , the weights A ^{s of} which make up a little more than the weight of the shaft A ^s and the rollers seated on it combined, and therefore strive to lift these rollers. On the shaft ^3, the bearing shells A A ^9, against whose upper side rest above the bearing A * ^h performed in the blocks A A screws abut ¹⁰ which limit the upward movement of the W ^T elle a ^3. The two lower rollers A ¹ A ² sit on the shaft A ¹² , which is mounted in the blocks ^ ^5. These rollers are therefore on the one hand against the blocks A ⁵ , on the other hand against the one in the middle, between the latter on the corrugation. ³ seated ring ^ L ¹³ at.

Although the rollers shown in the drawings are set up for the production of Σ iron are, the present rolling mill is of course also suitable for rolling other profiles.

On the W ^T ellen A ^s BEZW. A ⁿ seated rings ^ t ¹¹ respectively. A ¹³ are so far apart that they neither touch each other nor the web of the roller bar. :

The shaft A ™ (FIG. 2) is connected to the shaft α by clutches A ^u , while the shaft A ^{s is} connected to the shaft α ¹ by clutches A ^1B . Two spur gears α ² α ^% connect the shafts α and α ¹ with each other; the ^{gear α 2} is also still in engagement with the T K seated on the shaft <x ^h. The spur gear a ^e (PIg. 1) engages

the spur gear α ^{1 of} the shaft a ^s , which is connected by clutches a ⁹ to a gear a ¹⁰ , which lies in a straight line with the shaft a ⁸ between 'this and the journal b ^{1 of} the lower roller B' ² . The superposed rollers B ¹ B ² serve, as already mentioned, for rolling out the inner surfaces of the roller rod. The bearing pin b ^l and the wheel a ¹⁰ are inevitably connected by a suitable coupling b . The gearwheel Λ ¹¹ engaging in the wheel a ^{w is} connected to one of the bearing journals & ^{4 of} the upper roller B ¹ through a coupling b ³ . The transmission ratio of the drive wheels mentioned is such that the working surfaces of the rollers A ¹ , A ² , B ¹ and B ' ^{2 have the} same or almost the same rotational speed.

A suitable number of guide rollers C ¹ for the rolling stock is attached between the roll systems A and B (FIG. I) in order to support the rolling stock as it passes through the rolling mill.

In order to drive the stationary rollers DD ¹ together with rollers B ¹ B ~ , the following device has been implemented:

Horizontal friction disks d (Figs. 4, 6, 7 and 8) are suitably, e.g. B. connected to the rollers DD ¹ by connecting pieces d ³ D ³ . The latter are provided with a central bore D ⁴ (FIG. 7), above which the connecting pieces D ³ are let into the rollers D D ¹ (FIG. 8). The Frictionsscheiben d extend accordingly into the inner part of the rollers in DD ^1, and the connecting pieces D ³ are arranged so, that they a vertical up and down movement of the Frictionsscheiben permit d. The latter are provided on their upper side with inclined running surfaces d ' ² which bear against the friction wheels B ³ connected to the upper roller B ¹ . The wheels B ^s are expediently arranged interchangeably on the shaft ^{journal δ 4 in} order to be able to use them with any diameter of the rollers B ¹ B ' ² . Because the friction disks d can be adjusted in the vertical direction, the engagement between them and the friction wheels JB ^{3 is} always ensured.

To lift each friction disc. serves a piston E (Fig. 7), the Ringflantsch E ¹ is attached d at its upper end by a person sitting on the approaches e screw e ^l to the disk. The piston E lies in the inner chamber f of the cylinder F lying above the plate F ¹ and above which the stationary roller is arranged. The plate F ¹ is provided with a horizontal ring F ' ² , which forms the running surface for the balls F ³ located between it and the roller. In the plate F ¹ a channel f ^{1 is} provided through which the chamber f can be supplied with a liquid under pressure in a suitable manner. This lifts the piston E and the friction disk d connected to it, so that the latter always remains in intimate contact with the wheels B ^s. A stuffing box F ⁴ inside the cylinder F serves to prevent the liquid from escaping. The plate F ¹ lies above the pin b ^{1 of} the roller B ² , as shown in FIGS. 4, 6 and 7. The bearing pins b ^{l of} the roller B ' ² rest in the upper ends of the blocks GG, in their guides g the plate F ¹ lies and slides when the stationary rollers D and D ^{1 are} adjusted. On the guard side of the blocks G horizontally movable carriage H are arranged, each of which is connected by bolts H ¹ with the associated plate F ¹ (Fig. 5), so the removal of the plates von.den F DAF ¹ .getragenen rollers DD ¹ can be regulated by the lateral displacement of the carriage H in this or that direction by means of the screws H ' ² .

The brackets G are expediently connected to one another by a suitable number of horizontal bars G ⁸ .

Each carriage H is provided with a bearing plate J (Figs. 5, 7 and 8) made of very hard material. Between this plate J and the stationary roller, balls are inserted to reduce the friction between the two parts. ;

The provided in the plate F ¹ channel f ^l communicates with a channel / 7 ^l in the carriage H and is engaged with a rubber hoses K (Fig. 4) in conjunction which the supply of liquid under pressure gives, without the movement of the carriage to prevent.

To d a too grofse heating of the working against each other parts and to prevent ^Β Ά and the associated rollers, is each chamber f with an agent channels e ² of the piston E in combination, the liquid in the chamber DAF by the approach e ³ of the Piston E can reach the parts rubbing against each other.

The upward movement of the upper lying roller B ¹ , which BEZW exclusively by the piston E. the friction disks d is supported by the screws L, which are separated by spacers / from the journals of the roller B ¹ . The lateral displacement of the rolling stock when it is fed to the rollers and coming out of them is prevented by two pairs of horizontal guide rods P (FIGS. 4, 5 and 6). These rods are adjustably arranged and in a suitable manner, for. B. connected to the carriage H by rods P ¹ . The rods P rest with their inner ends on projections F ^{5 of} the plates F ¹ (FIG. 7). The latter are provided with flanges F ⁰ on which the rods P

are fastened by screws F ¹ (Fig. 5 and 6). In this way the bars are well supported at each end so that they cannot be bent by the rolling mill.

Claims (1)

Patent Claims: i. A rolling mill for the production of profiled rolling stock, consisting of two superposed, lying rolls (B ¹ B-) and two juxtaposed, standing rolls (DD ¹ J, the latter of which carry vertically adjustable friction disks (d) with friction wheels ³ / the upper lying roller (B ¹ ) are in engagement and thereby obtained with this common drive, while the movement of the upper lying roller (B ¹ ) in the vertical direction is made possible by lifting the friction disks (d) .
A rolling mill according to claim 1, characterized in that the adjustable friction disks (d) can be raised and lowered by hydraulic pistons (E) which at the same time supply cooling liquid to the rubbing surfaces through a channel (e ² ). 1 sheet of drawings.