Project review: Elastic decoupling of a large roller grinder

In this conference-contribution a detailed insight-view of a project for the elastic decoupling of a machine is given.The project is about the elastic decoupling of a roller grinder. The roller grinder is situated in the vicinity of other machines; so the machine is exposed to high levels of shock and vibrations.To ensure the accuracy of this high-precision-machine over the total service life a passive vibration protection with polyurethane-bearings was requested.Studies were performed and a solution with discrete polyurethane-bearings was suggested. This solution was approved by the customer and the installation was done in April 2015.The background of the studies will be presented including explanations of the distinctive features of non-linear polyurethane-material. Recommendations for handling and processability of the material will be given. Finally the constructional execution of the decoupling will be introduced. fact box:machine: roller grindermachine weight: 170tofoundation: 17m x 4,6m with depth 2,5mfoundation weight: 490tovibration isolation: discrete polyurethane-bearingscommissioned: sept 2015