JPH04262809A - Multilevel roll stand - Google Patents

Abstract

PURPOSE: To easily adjust a position by abutting each supporting roll on supporting shells which are parallel disposed in the upper part and the lower part of a stand via a supporting saddle to support the roll and distributing the whole supporting loads of each group of the supporting saddle over the whole areas of the supporting shell. CONSTITUTION: Each supporting roll is abutted on supporting shells 7-14 which are parallel disposed in the upper part 1 and the lower part 2 of a stand via supporting saddles 19, 20 and supported. The whole supporting loads of each group of the supporting saddles are distributed over the whole areas of the supporting shells. Each supporting shell is composed of only two flat supporting surfaces 16a-18b which are mutually arranged at a fixed angle and distribute the supporting load with both to support it. A working error and a dimensional difference owing to wear are corrected in two spatial coordinates by inserting a wear plate, and a position in each place is adjusted. Thus, the position of the supporting saddle is easily corrected.

Description

[Detailed description of the invention]

0001

FIELD OF INDUSTRIAL APPLICATION The present invention relates to a multi-roll stand having several upper and lower support rolls, the support rolls being arranged in parallel at the top and bottom of the stand through support saddles. The saddle is placed on a support shell, and the entire support load of each support saddle is distributed over the entire area of the support shell.

0002

BACKGROUND OF THE INVENTION In a conventional type of multi-roll stand as disclosed in German Published Patent Application No. 1652556, the supporting shells disposed in parallel have an arcuate shape, and the supporting load is distributed over the shells. The design is designed to prevent any component force from moving the support saddle out of the support shell. In order to maintain these precise dimensional tolerances required for the support shell, the stand is adjusted and machined with the same precision during its manufacture as in service. This applies both to one-piece stands and also to two-piece stands, in which the two parts are connected by four cylinders.

A disadvantage of this type of multi-roll stand is that it is expensive to manufacture. Furthermore, even if errors in manufacturing are corrected, high costs are required.

Another prior art multi-roll stand disclosed in DE 2341768 has a flat bottom and a wall perpendicular to the bottom instead of the arc-shaped shell. A reception space has been set up. In this type of multi-roll stand, the entire supporting weight is transferred from each set of support saddles to this flat bottom, while the side walls merely guide the support saddles. In such cases, at least the parallel side walls must be manufactured with strict dimensional tolerances. Otherwise, the necessary support load will not be transferred to the recessed bottom. Also, subsequent modifications to this can only be made in one spatial coordinate, namely the recessed bottom.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a multi-roll stand that can be manufactured inexpensively and, in particular, that allows for inexpensive correction of the position of the support saddle determined by the support surface.

[0006]

Means for Solving the Problems The above problems are solved by the following configuration according to the present invention. That is, each support shell consists of only two flat support surfaces arranged at an angle with respect to each other and both distributing and supporting the support load.

[0007] Such a stand allows the support surface to be machined more easily and precisely than in a casing with a support shell in the form of an arc. On top of that,
In the case of a two-piece stand construction, the upper and lower parts of the stand can be manufactured separately without any loss of precision. Additionally, the flat support surface clearly demarcates the associated edges. In addition, dimensional deviations due to processing errors or wear can be corrected in two spatial coordinates by inserting a wear plate, and therefore the position in each space can be adjusted.

One feature of the invention is that the flat support surfaces are arranged in a stepped manner. In particular, the support surfaces engaging each set of support saddles are arranged at right angles to each other.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1(a), a multi-roll stand consists of an upper part 1 and a lower part 2. The two parts 1, 2 of this stand are connected via four cylinders 3-6. Support shells 7 to 14 extending parallel to each other operate four support rolls in both the upper part 1 and the lower part 2 of the stand.

The lower part 2 of the stand consists of two flat support surfaces, 16a, 16b, 17a, 17b, 17c, 16a, 16b, 17a, 17b, 17c,
18a, 18b, and the two bottom shells 12, 13 have a common support surface 17b. The upper part 1 of the stand is constructed in the same way as described above. As a result, the supporting shells 7 to 14 as a whole are formed in a stepped manner.

As shown in FIGS. 2 and 3, the upper part 1 of the stand
and the support saddles 19, 20 fitted to the lower part 2 are arranged between the individual support rolls and have a bearing plate 19 in which the support roll shaft is mounted, and two support saddles 19, 20 arranged at right angles to each other. It consists of a base 20 having support surfaces 20a and 20b. This base 20 connects the stands 1 and 2 via the support surfaces 20a and 20b.
Flat support surfaces 16a, 16b, 17a, 17 corresponding to
b, 17c, 18a, and 18b.

[0012] Since the support surfaces 18a and 18b are arranged at a constant angle to each other, the support saddles 19 and 20
A geometrically well-defined connection between the support shells 7 to 14 and the supporting shells 7 to 14 can be obtained.

By inserting this thin wear plate between the flat support surfaces, deviations within the tolerance range can thus be compensated for in a targeted manner and inexpensively.

[Brief explanation of the drawing]

1 shows a multi-roll stand according to an embodiment of the present invention, (a) is a perspective view showing the upper and lower parts thereof, (b)
FIG. 2 is a perspective view of the lower part of the roll stand with support saddles.

FIG. 2 is a side view of the support saddle shown in FIG. 1;

FIG. 3 is a sectional view taken along the line AB in FIG. 2 of the support saddle shown in FIG. 2;

[Explanation of symbols]

1... Upper stand 2... Lower stand 3, 4, 5, 6... Cylinder 7, 8, 9, 10, 11, 12, 13, 14... Support shell 16a, 16b, 17a, 17b, 17c, 18a, 1
8b...Support surface 19, 20...Support saddle

Claims (3)

[Claims] 1. A multi-roll stand comprising several upper and lower support rolls, each of the support rolls being arranged parallel to the upper and lower parts of the stand via support saddles (19, 20). The supporting shells (7-14) are supported in contact with each other, and the total supporting load of each pair of supporting saddles (19, 20) is distributed over the entire area of the supporting shells (7-14). ~14) are only two flat support surfaces (16a, 16b, 1
7a, 17b, 17c, 18a, 18b). Claim 2: Flat support surfaces (16a, 16b, 17
The multi-roll stand according to claim 1, wherein the rolls (a, 17b, 17c, 18a, 18b) are arranged in a stepwise manner. 3. Support surfaces (16a, 16b, 17a, 17b) engaged with each set of support saddles (19, 20).
, 17c, 18a, 18b) are arranged at right angles to each other.
Multi-roll stand described in section.