Bearing housing support of a double-roll crusher

Abstract

A device for supporting a roller bearing housing of a double-roll crusher is provided, wherein each roller has a fixed bearing with a non-self-aligning design and a floating bearing with a non-self-aligning design, and wherein at least one load distribution element is arranged between the machine frame of the double-roll crusher and the housing of each roller bearing. The at least one load distribution element has at least two elastic, spatially separated individual elements, with at least one recess between the individual elements providing a spatial separation in the vertical direction.

Claims

1. A rolling mill bearing housing assembly for a two-high roller press, in which both rollers respectively exhibit a fixed bearing in a design that cannot be moved at an angle and a floating bearing in a design that cannot be moved at an angle, said rolling mill bearing housing assembly comprising: at least one load distribution element comprising at least two spatially-separate, elastic individual elements spaced along a vertical direction; and at least one bearing housing comprising: a bearing opening configured to support the fixed or floating bearing therein and having an axis extending along a horizontal direction, the horizontal direction being transverse to the vertical direction; and at least two support surfaces on a first side of the at least one bearing housing; wherein a first side of the at least one load distribution element is positioned against the at least two support surfaces, and wherein the at least one bearing housing further comprises at least one recess extending into the first side of the at least one bearing housing positioned between the at least two support surfaces and the at least two individual elements in the vertical direction that forms an open spatial separation therebetween in the vertical direction.

2. The assembly according to claim 1, further comprising a non-elastic pressure transfer element fitted against a second side of each of the at least two individual elements that opposes the first side thereof.

3. The assembly according to claim 1, wherein the at least one load distribution element is symmetrical to a horizontal plane.

4. The assembly according to claim 1, wherein the at least one load distribution element is of the same construction for all rolling mill bearings of the two-high roller press.

5. The assembly according to claim 1, wherein the bearing opening is configured to support a cylindrical roller bearing.

6. The assembly according to claim 1, wherein the at least two individual elements of the at least one load distribution element are cuboid shaped.

7. The according to claim 1, wherein the at least two individual elements of the at least one load distribution element comprise an elastomer.

8. The assembly according to claim 1, wherein the individual elements of the at least one load distribution element comprise one of rubber or polyurethane.

9. The assembly according to claim 1, wherein the at least two support surfaces are recesses surface portions of the first side of the at least one bearing housing such that they are at least partially enclosed by an closed edge.

10. The assembly according to claim 9, wherein the closed edge is formed partially by supporting wall portions that extend in the horizontal direction and are positioned above and below each of the at least two support surfaces, the supporting wall portions extending along at least a portion of a thickness of the individual elements from the first side to a second side thereof that opposes the first side.

11. A rolling mill bearing assembly for a two-high roller press, comprising: the rolling mill bearing housing assembly according to claim 1; and at least one bearing installed in the bearing opening of the at least one bearing housing.

12. The assembly according to claim 10, wherein the supporting wall portions extend past the second side of the individual elements.

13. The assembly according to claim 10, wherein the at least one recess is positioned between a first supporting wall portion and a second wall portion along the vertical direction such that the open spatial separation is positioned therebetween in the vertical direction.

14. The assembly according to claim 13, wherein the first and second supporting wall portions form the at least one recess.

15. The assembly according to claim 13, wherein the first supporting wall portion is positioned below a first support surface of the at least two support surfaces and a first individual element of the at least two individual elements that is positioned against the first support surface, and wherein the second supporting wall portion is positioned below a second support surface of the at least two support surfaces and a second individual element of the at least two individual elements that is positioned against the second support surface.

16. The assembly according to claim 10, wherein the closed edge is formed partially by supporting plates that extend in the vertical direction and are positioned on left and right sides of each of the at least two support surfaces along the horizontal direction.

17. The assembly according to claim 16, wherein a pair of the supporting wall portions and a pair of the support plates form respective closed edges that fully enclose each of the at least two supporting surfaces.

Description

(1) Respectively schematically:

(2) FIG. 1 shows a vertical cross-section of a bearing housing support according to the invention for the floating roller,

(3) FIG. 2 shows a side view of a section of the floating roller side of a two-high roller press with the bearing housing support of the floating roller according to the invention,

(4) FIG. 3 shows a side view of a section of the fixed roller side of a two-high roller press with the bearing housing support for the fixed roller according to the invention,

DETAILED DESCRIPTION

(5) FIG. 1 schematically shows a vertical cross-section of an illustrative example of a bearing housing support 1 according to the invention for the floating roller in a two-high roller press, in which the axis of rotation of the floating roller is vertical to the plane of the drawing. The shaft of the floating roller is supported in cylindrical roller bearings with cylindrical roller elements (not shown). On bearing housing 2 of a cylindrical roller bearing rests a load distribution element 3, which exhibits two equivalent, cuboid elastic individual elements 31a, 31b, for example rubber elements, in which the elastic individual element 31a is arranged on the upper half of the bearing housing and the elastic individual element 31b is arranged on the lower half of the bearing housing. The individual elements 31a, 31b extend in the horizontal direction over the entire width of the bearing housing 2. In a vertical direction, the load distribution element 3 encloses somewhat with the upper and lower cover surface of the bearing housing 2. Between the individual elements 31a, 31b is located a recess 32 which, as with the load distribution element 3, is symmetrical in relation to the horizontal central plane of the bearing housing 2. On the surface 33a, 33b of an individual element 31a, 31b, opposite to the surface 34a, 34b resting on the bearing housing 2, precisely fitting metal stamps 4a, 4b are arranged as means of transferring pressure, in which the size of the contact surface of the metal stamps 4a, 4b corresponds to the individual elements 31a, 31b of the size of surface 33a, 33b. Each individual element 31a, 31b is enclosed by a closed edge. This is illustrated in the horizontal direction (vertical to the plane of the drawing) by raised supporting walls 21a, 21b welded onto the bearing housing (each individual element 31a, 31b is therefore guided into a horizontally-aligned groove) and in a vertical direction (parallel to the plane of the drawing) on both sides are supporting plates (not shown) fastened by force-fit to the bearing housing 2 and to the horizontal supporting walls 21a, 21b (not shown). Each individual element 31a, 31b is enclosed piston-like by the supporting walls 21a, 21b and the supporting plates (not shown). The supporting walls 21a, 21b and the supporting plates (not shown) extend over the relevant individual element 31a, 31b on the surface 33a, 33b, so that also the section of the stamp 4a, 4b facing towards the surface 33a, 33b is enclosed and supported by the edge of the individual element 31a, 31b. The stamps 4a, 4b are respectively connected via an articulated and sprung screw connection to spacers 5a, 5b. The spacers 5a, 5b are connected to a hydraulic cylinder 6 for the application of the pressing force.

(6) FIG. 2 shows in sections a side view of the floating roller side of a two-high roller press with bearing housing support 1 according to the invention, as shown in FIG. 1. In this case, the axis of rotation of the roller (not shown) is vertical to the plane of the drawing. The bearing housing 2 exhibits a load distribution element 3 with two spatially-separated, elastic individual elements (concealed here), between which a recess 32 is located, that is symmetrical in relation to the horizontal central plane of the bearing housing 2 (indicated by the horizontal dotted line). The enclosed edge of the individual elements (concealed here) is formed in the horizontal direction by the supporting walls 21a, 21b (partially concealed) welded onto the bearing housing 2 and in the vertical direction by the supporting plates 22a, 22b connected by force-fit with the supporting walls. The enclosed edge therefore supports a section of the stamps 4a, 4b resting on the individual elements. The stamps 4a, 4b are connected by an articulated and sprung screw connection with spacers 5a, 5b, that is in turn connected to a hydraulic cylinder 6 for applying the pressing force. The hydraulic cylinder 6 is fastened to the vertical pillars 7 of the machine frame of the two-high roller press. The bearing housing support 1 according to the invention is of identical construction for the fixed bearing and floating bearing side of the floating roller.

(7) FIG. 3 shows sections of a side view of the fixed roller side of a two-high roller press with a bearing housing support 1′ according to the invention. As in FIG. 2, the axis of rotation of the roller (not shown) is vertical to the plane of the drawing. The bearing housing support 1′ on the fixed bearing and floating bearing side of the fixed roller side is the same construction as the bearing housing support 1 on both bearing sides of the floating bearing, as shown in FIG. 1 and FIG. 2. In contrast to the floating bearing side, the spacers 5a′, 5b′ on the fixed roller side are fastened directly to the vertical pillars 7′ of the machine frame of the two-high roller press.

REFERENCE NUMBERS

(8) 1,1′ Bearing housing support 2 Bearing housing 21a Upper supporting wall 21b Lower supporting wall 22a Upper supporting plate 22b Lower supporting plate 3 Load distribution element 31a Upper individual element 31b Lower individual element 32 Recess 33a The side surface of the upper individual element opposite the contact surface on the bearing housing 33b The side surface of the lower individual element opposite the contact surface on the bearing housing 34a Contact surface on the bearing housing of the upper individual element 34b Contact surface on the bearing housing of the lower individual element 4a Upper stamp 4b Lower stamp 5a, 5a′ Upper spacer 5b, 5b′ Lower spacer 6 Hydraulic cylinder 7, 7′ Vertical pillar