SE528959C2 - Press arrangement - Google Patents

Abstract

A pressing device for the draining of a fibre material web, in particular, a paper or cellulose web, comprises two pressing rollers (1, 2) which form a pressing gap. The pressing rollers (1, 2) are mounted in bearing blocks (4, 5; 11, 12), which are connected to each other on one side of the pressing rollers (1, 2). The bearing blocks (4, 5, 11, 12) for the pressing rollers (1, 2) are directly connected to each other by means of a rotating bearing (15) and/or by means of tie bars (16, 16'), whereby the tie bars (16, 16') are connected for their part to the bearing blocks (4, 5, 11, 12) by means of rotating bearings (13, 14). The advantage of this manner of connection for the bearing blocks (4, 5; 11, 12) is that, on a deflection of the pressing rollers (1, 2), no additional forces occur at the mounting points or the connection points of the bearing blocks (4, 5; 11, 12) as the deflection of the pressing rollers (1, 2) is taken up by the rotating joints (13, 14, 15).

Description

Preferred embodiments of the invention are subject to the subclaims.

Hereinafter, an exemplary embodiment of the invention will be described with reference to the accompanying drawings.

There fi g shows. 1 is a section through an inventive paddle roller, FIGS. 2 and 2a show a front and a side view of the connection area for the bearing brackets on the driver's side on an enlarged scale and fi g. 3 and 3a a front and a side view of the connection area for the bearing brackets on the drive side on an enlarged scale. _ I fi g. 1 shows a shoe press in section, which has a shoe roller 1 and a counter roller 2.

The counter roller 2 is mounted with pendulum roller bearings 3 in bearing brackets 4 and 5. The bearing bracket 5 is arranged there on the drive side and the bearing bracket 4 on the driver's side. The counter-roller 2 can be connected to a drive device (not shown) over a shaft end 6. As is known, the shoe roller 1 consists of a jacket 7, which is freely rotatably mounted on a stationary carrier 8 and its bearing pins 4 and 11, respectively. The carrier 8 is located inside the jacket 7 a press shoe 24, by means of which the jacket 7 can be hydraulically pressed against the counter-roller 2, so that the web of fibrous material passed between the jacket 7 and the counter-roller 2 is compressed and dewatered.

The bearing pins 9, 10 of the shoe roller 1 are mounted in bearing brackets 11, 12, the bearing bracket 11 being arranged on the driver's side and the bearing bracket 12 on the drive side. The bearing brackets 4 and 5 * of the counter roller 2 and the bearing brackets 11 and 12 of the shoe roller are connected to each other over pivot bearings 13 to 15. A pivot bearing 15 is located on the drive side and connects the bearing brackets 5 and 12 directly to each other. On the driver's side, tie rods 16 are arranged, which on the one hand are connected to the bearing bracket 4 for the counter-roller 2 over a pivot joint 13 and on the other hand to the bearing bracket 11 for the shoe roller 1 over a pivot joint 14. The shafts of the pivot bearings 13, 14 and 15 are formed at right angles to the axis of the press roll. By right-angled is meant in these contexts that the axes of the pivot joint and the press roll are arranged in different parallel planes and stand at right angles to each other seen from above.

The pivot joint 15 on the drive side forms a fixed bearing, viewed in the axial direction of the press rollers, whereby, however, an inclination of the bearing brackets 5 and 12 towards each other due to. of the bending load of the press rollers 1 and 2, in particular the shoe roll 1 and its carrier 8, by the design of the bearing as pivot bearing can be accommodated without problems.

The bearing connection on the driver's side with the tie rods 16, which are connected to the bearing brackets 4, 11 over the pivot joints 13, 14, guarantees that the press rollers 1 and 2 are movably mounted to each other in the axial direction, since the tie rods 16 can oscillate between their bearings 13 and 14. is by this type of bearings again also on this side of the press rollers 1, 2 guaranteed that an inclination of the bearing brackets 4 and 11 towards each other - due to the bending load of the press rollers 1 and 2, in particular the shoe roller 1 and its carrier 8, can be accommodated without problems. 10 15 (fl N) GL- \ .0 z fl 3.

The inventive bearing connection of the press rollers 1, 2 offers the further advantage that the pull rods upon disassembly of the press rollers 1, 2, e.g. for a casing gearbox, do not have to be rebuilt, as they are arranged fold-out on the driver's side (Fig. 3a). A preferred embodiment of the pivot bearing 15- on the drive side is shown in Figs. 2 and 2a on an enlarged scale. It should be recognized that the pivot bearing 15 consists of interlocking rods 17, 18, 17 ', 18', which are connected to each other by means of bearing bolts 19, 19 '. There are two groups of rods 17, 18, 17 ', 18' connected to bearing bolts 19, 19 ', which are spaced apart to create a stable bearing which is nevertheless easy to manufacture and handle. A preferred embodiment of the pivot bearing 13, 14 on the drive side is shown in fi g. 3 and 3a on an enlarged scale. Figs. 3 and 3a show that the tie rods 16. 16 'are received in slots 20. 20' on the side of the counter-roller 2 and slots 21, 21 'on the side »of the shoe roller 1 and there again fastened by means of bearing bolts 22, 22' and 23, 232 Here too, for reasons of simplicity and stability, a paired device has been chosen. In Fig. 3a it can also be seen how the drawbars 16, 16 'mentioned above can be folded out. The fold-out position is indicated by dash-dotted lines.

The bearings must not be arranged in the shape shown, on the contrary, either pivot bearings or drawbars with pivot bearings can also be arranged on both sides.

Claims (6)

10 15 20 25 Patent claims Pressing device for dewatering a web of material, in particular a paper or cellulosic web, with two press rolls (1, 2), which form a press gap. wherein the press rollers (1, 2) are mounted in bearing brackets (4, 5; 11,12), which are always connected to each other on one side of the press rollers (1,2), characterized in that the press rollers (1, 2) bearing brackets (4, 5, 11, 12) are connected to each other via a pivot bearing (15) directly and / or via drawbars (16, 16 '), the drawbars (16, 16') in turn being connected to the bearing brackets (4 , 5, 11, 12) over pivot bearings (13, 14), the shafts of the pivot bearing (13, 14, 15) being formed at right angles to the axis of the press rollers (1, 2). in Press device according to claim 1, characterized in that the bearing brackets (5, 12) on one side of the press rollers (1, 2) are directly connected to each other over a pivot bearing (15) and that the bearing brackets (4, 11) on it the other side of the press rollers (1, 2) are connected to each other via drawbars (16, 16 '). Press device according to Claim 1 or 2, characterized in that the pivot bearing (15) directly connecting the bearing brackets (5, 12) consists of interlocking rods (17, 17, ', 18, 18'), which are connected to each other by means of a bearing bolt (19, 19 '). Press device according to one of Claims 1 to 3, characterized in that the tie rods (16, 16 ') are received in slots (20, 20 ", 21, 21') in the bearing brackets (4, 11) and are connected to the bearing brackets ( 4, 11) by means of bearing bolts (22, 22 ". 23, 23 '). Press device according to one of Claims 1 to 4, characterized in that the pivot bearings (13, 14, 15) on each side of the press roller (1, 2) are arranged in pairs lying next to one another. Pressing device according to one of Claims 1 to 5, the drawbars (16, 16 ') are arranged on the driver's side. characterized by, that