초록 ▼

A roller press for the pressure treatment or compaction of granular material, having at least two rolls formed as freely rotating rolls, in each case rotatably mounted in a machine frame by a shaft, driven in opposite directions and separated from one another by a roll gap. The shafts of the rolls a

A roller press for the pressure treatment or compaction of granular material, having at least two rolls formed as freely rotating rolls, in each case rotatably mounted in a machine frame by a shaft, driven in opposite directions and separated from one another by a roll gap. The shafts of the rolls are accommodated in bearing housings movably mounted in the machine frame and in each case two bearing housings arranged on one side of the rolls and belonging to different rolls are connected to each other via at least one pressure cylinder. The connection between the bearing housings in each case has at least one torque balance. In this way, the structure of a roller press having roller centering is simplified and can be produced more cost-effectively.

대표청구항 ▼

1. A roller press for the pressure treatment or compaction of granular material, comprising: at least two rolls, configured as movable rolls, which are respectively rotatably mounted in a machine frame via a shaft extending from one side to another side of each of the rolls, are driven in counter ro

1. A roller press for the pressure treatment or compaction of granular material, comprising: at least two rolls, configured as movable rolls, which are respectively rotatably mounted in a machine frame via a shaft extending from one side to another side of each of the rolls, are driven in counter rotation and are separated from one another by a roll gap,wherein the shafts of each of the rolls are accommodated in separate bearing housings movably disposed in the machine frame, andwherein on each of the sides of the at least two rolls, two of said bearing housings disposed on a common side of the at least two rolls, and belonging to different ones of the at least two rolls, are connected to each other via at least one pressure cylinder,the connection between the two of said bearing housings including at least one torque balance on each of the sides of the at least two rolls,wherein the at least one torque balance on each of the sides of the at least two rolls is mounted rotatably about a vertical rotation shaft which lies in a plane spanned by the centerline of the roll gap and a vertical line passing through the centerline. 2. The roller press as claimed in claim 1, wherein the at least one torque balance is disposed roughly midway between the bearing housings. 3. The roller press as claimed in claim 1, wherein the at least one torque balance has a rocker, via which the two bearing housings are connected to each other, and has a rotatably mounted pendulum, via which the rocker is mounted pivotably about the rotation shaft. 4. The roller press as claimed in claim 1, wherein the rotation shaft is fixedly connected to the machine frame. 5. The roller press as claimed in claim 1, wherein the pressure cylinders act upon the torque balance respectively in pairs and in mutually opposing arrangement. 6. The roller press as claimed in claim 1, wherein the pressure cylinders are tensile loaded. 7. The roller press as claimed in claim 1, wherein the bearing housings, the pressure cylinders, and the torque balance form a self-contained system of forces. 8. The roller press as claimed in claim 1, wherein at least one of the bearings of at least one roll is a loose bearing, which provides a degree of freedom in the axial direction of the shafts. 9. A method for centering a roll gap of a roller press for the pressure treatment or compaction of granular material, which roller press has at least two rolls, configured as movable rolls, which are each rotatably mounted in a machine frame via a shaft extending from one side to another side of each of the rolls, are driven in counter rotation and are separated from one another by the roll gap, comprising the steps: accommodating the shafts of each of the rolls in separate bearing housings movably disposed in the machine frame,connecting, on each of the sides of the at least two rolls, two of said bearing housings disposed on a common side of the at least two rolls and belonging to different ones of the at least two rolls to each other via at least one pressure cylinder, andusing at least one torque balance between the two of said bearing housings on each of the sides of the at least two rolls, wherein the at least one torque balance on each of the sides of the at least two rolls is mounted rotatably about a vertical rotation shaft which lies in a plane spanned by the centerline of the roll gap and a vertical line passing through the centerline.