FI68107B - LAGRINGSANORDNING FOER EN VALS - Google Patents

Description

ΙνΗτη NOTICE ^ 8107 48Ff 11 UTLÄGGN, NGSSKR, FT 00,0 • jSjS c (45) ^, '7: (51) Kv.! K. * / Lnt.CI.4 F 16 C 13/02 FINLAND — FINLAND ( 21) Patent application - PatentansSknlng 801953 (22) Filing date— Ansöknlngsdag 18.06.80 (23) Starting date - Giltighetsdag l8.06.80 (41) Published Public - Blivit offentllg 2J 01 81

National Board of Patents and Registration For the date of publication | - pq '„5' or

Patent- och registerstyrelsen '' Ansökan utlagd och utl.skriften publicerad .j.uj.op (32) (33) (31) Pyydetty etuoikeus - Begärd priority 24.07.79

Federal Republic of Germany T-Förbunds Repub Ii ken Tyskland (DE) P 2929942.1

Styrkt (71) Eduard Kusters, Gustav-Fiinders-Weg 18, 1 * 150 Krefeld, German Federal Republic of Germany (DE) (72) Karl-He inz Liessem, Krefeld, Erwin Janssen, Kempen, German Federal Republic Förbundsrepubliken Tyskland (DE) (7¾) Leitzinger Oy (5¾) Bearing device for a roller - Lagringsanordning för en The invention relates to a bearing device according to the preamble of claim 1.

Such a bearing device is known from French patent publication 22 26 508. In this case, the bearing housing consists of a rectangular body and a bearing body of a rectangular component with an opening for receiving a roller pin bearing. The piston / cylinder unit is arranged on one of the transverse sides of the body, whereby the piston presses directly against the bearing body.

The bearing device disclosed in French patent publication 22 26 508 is intended for a calender. The bearing housing is screwed laterally into the calender body so that the bearing housing moves vertically in the bearing housing. Normally, the piston / cylinder units are under pressure, but otherwise 2,610,107 are inoperative. They are therefore not intended to affect the line pressure. This is most often determined by the lower roller. The function of the piston / cylinder unit starts only in case of an emergency, for example during a track break, when the calender must be cut off quickly. The lower roller is then quickly lowered, and the piston / cylinder units trap the next upper roller during its return movement as the bearing housing moves in the bearing housing to alleviate the fall.

Line pressure control in a rolling mill with hydraulic piston / cylinder blade units has long been known per se (German Patent Publication 91,573). It is also common in calenders (DOS Publication 20 10 322, U.S. Patent 3,451,332). Common to known embodiments using hydraulic or pneumatic control, however, is that the rollers are in some way guided in the machine direction in their direction of adjustment and that there are separate structural units for generating pressure in the device, which conduct movement in the guides. In DOS publication 20 10 322 calender rolls are mounted on bearing bases which can move in vertical sliding guides of the calender body, U.S. Pat. No. 3,451,332 provides a rocker fork for bearing the rollers.

The known design causes a considerable structural loss due to the separation of control and pressure delivery. It becomes particularly large if individual inja pressures in calender assemblies have to be controlled separately (U.S. Patent 3,158,088).

It is therefore an object of the present invention to reduce the structural loss in line pressure equipment in rollers.

This object is solved according to the invention by the features according to the characterizing part of claim 1.

The pistons connected to the bearing housing then take on not only to provide control forces for obtaining the line pressures, but also at the same time to control the bearing housing so that no structural means of their own are required to provide this control. The guide is particularly effective because the diameter of the pistons is relatively large and they are arranged on the opposite side of the bearing body and the bearing pin, respectively. The bearing device can be made quite narrow, since the pistons do not in themselves require any large guide lengths, as is otherwise necessary in cylindrical guides, in which case it is also a rule that the guide length must be at least the same as the diameter of the tank. This requirement is now omitted because the opposite piston of the bearing housing acts as part of the steering. The guide length of the piston is thus essentially determined only by the required stroke of the bearing housing inside the bearing housing.

This provides a structural unit which can be made so small that it does not exceed the outer surface of the roll to any preventable extent. Structural obstacles or limitations in roller-operated equipment that are otherwise required by the components required to guide and apply pressure are thus eliminated.

In principle, however, it is necessary that both pistons are bearing-coaxially in the bearing housing or that they are arranged in the direction of adjustment. However, this corresponds to the preferred embodiment according to claim 2.

The bearing housing must be controlled exclusively by the piston. Generally, the rollers with their pins are mounted on a bearing frame so that the shaft of the rollers can bend slightly under line pressure without coming into contact with the bearing. It is therefore necessary to install a pendulum bearing or to support the outer bearing rings on the ball bearing surfaces. But if the roller pin can bend in the adjustment direction relative to the bearing housing, naturally the bearing housing can also rotate in a plane perpendicular to the roller pin.

Since this is not desirable, rotation securing according to claim 3 is recommended.

Claim 4 states that the bearing housing aims at a certain type of body structure which allows a very simple installation.

68107 4

Embodiments of the invention are shown in the accompanying drawings in which:

Figure 1 shows a side view of a bearing device according to the invention in a partial sectional view.

Figure 2 shows a top view of the device of Figure 1.

Figures 3-5 show side views of various rolling mills provided with a bearing device according to the invention.

The bearing device shown in Figures 1 and 2 is indicated in its entirety by reference numeral 10. It comprises a U-shaped body 1 with two arms 2, 3 and a sill 4. The free ends of the arms 2, 3 are connected 7 on the end faces of branches 2, 3. In this way, a stable, substantially rectangular frame is created. The outer surfaces 8, 8 and 9, 9 are also parallel to each other and the outer surfaces 8 and 9 are perpendicular to each other, so that a shell-like formation is ignited, the outer surfaces 8, 9 of which are simultaneously mounting surfaces.

Arranged in the sill 4 and in the transverse member 5 are coaxial cylinders 11, 12 which are opposite at their open ends and closed at the other ends and connected by lines to pressurized hydraulic oil.

The cylinders 11, 12 are provided with pistons 13, 14 which are fixedly connected to the bearing housing 15. Thus, in a certain way, it is a double piston arranged on each opposite side of the bearing housing. The bearing housing 15 and the pistons 13, 14 can be made in one piece.

The bearing body 15 has a certain type of bearing eye in which a wobble bearing 16 with a hole 17 for receiving a roller pin is arranged.

5 08107

In the exemplary embodiment, the pistons 13, 14 are arranged on a common shaft 18, which in the bearing device 10 mounted on the rolling device is in the adjusting direction and intersects the shaft of the roll. Thanks to the wobble bearing 16, the bearing body 15 could rotate about the shaft 18. To prevent this, a rotary lock is provided in the form of a bolt 19 arranged in a branch 2 engaging a groove 20 parallel to the shaft 18 of the bearing housing 15.

Between the opposite end ends of the bearing housing 15 and the cylinders 11, 12, gaps 21, 22 are formed corresponding to the impact of the bearing housing 15 with respect to the bearing housing 1. The bearing housing 15 and thus also the roller can thus be displaced relative to the bearing housing in the axial direction 18. to achieve line pressure, to compensate for changes in diameter caused by wear of the rollers, to ventilate the rollers, etc.

The bearing housing 1 is made very stable so that the forces caused by the roller can be dissipated by fastening devices which engage the bearing housing 1, e.g. by screws which engage the holes 23.

FIG. Line pressure can be provided by loading the lower piston / cylinder unit 11, 13. But it is also possible to provide a quick release by relieving the pressure from the lower piston / cylinder unit 11, 13 and applying pressure to the upper piston / cylinder unit 12, 14. The end of the elongate hole 28 in the 27 rests on the pin 29.

Thanks to the bearing device 10, no stressful and complicated control and loading devices are required for the lower roller 24.

Figure 4 shows a three-roll device 40 in which two rollers 33, 34 provided with bearing devices 10 are arranged laterally in the bearing housing 31 of the central roll 32. No large machine body is required to extend beyond the side rollers 33, 34. This body of the 6 68107 machine is better replaced by self-supporting bearing devices 10.

Similarly, an ironing device 50 according to Fig. 5 is provided, with an upper roller 42 mounted on lower rollers 41 with bearing devices 10. As shown below in broken lines, the ironing device 50 can be supplemented as a multi-roll device by providing further rollers 43, 44 with bearing devices 10 'connected. immediately lowered with bolts. Also in this case, a large machine frame can be omitted.

Claims (4)

681 07 7 Patented applications A bearing device for a roller rotatably mounted at each of its roller pins on a bearing body (15) movably guided in a bearing housing (1) and integrally connected in a transverse direction with pistons (13, 14) arranged on both sides in the bearing housing ( 1) arranged in a cylinder (11, 12), characterized in that the cylinders (13, 14) are arranged coaxially in a plane passing through the roller shaft and in that the bearing housing (1) has a substantially II-shaped part (2, 3,4), that an open cylinder (11) is arranged inside the "I" at the threshold (4) of the "U", that a transverse member (5) with a second one connecting the free ends of the branches (2, 3) of the "U" is provided Inside the U "an open cylinder (12) and that the bearing body (15) is arranged between the threshold (4) of the branches (2, 3) and the transverse member (5). Bearing device according to Claim 1, characterized in that the cylinders (13, 14) are arranged in the adjusting direction. Bearing device according to Claim 1 or 2, characterized in that a rotation lock (1.9, 20) is provided which prevents the bearing housing (15) from rotating about the axis (18) of the pistons (13, 14), but still allows the bearing housing (15) displacement of the pistons (13, 14) in their axial direction (18). Bearing device according to one of Claims 1 to 3, characterized in that the bearing housing (1) is delimited at right angles and can be connected to the machine frame coaxially with the piston shaft (18) or at its sides (8, 9) perpendicular thereto.