Hydrostatic drive and method for operating such a hydrostatic drive

摘要

A hydrostatic drive ( 1 ) with a hydraulic pump ( 3 ) and a plurality of hydraulic motors ( 6-9 ) that are hydraulically linked with the hydraulic pump ( 3 ). One speed sensor ( 20; 21; 22; 23 ) each allocated to a respective hydraulic motor ( 6; 7; 8; 9 ) and is linked with a control device ( 24 ) and detects the speed (n₁; n₂; n₃; n₄) of the allocated hydraulic motor ( 6; 7; 8; 9 ). Every hydraulic motor ( 6; 7; 8; 9 ) is functionally linked with a brake device ( 26; 27; 28; 29 ) that in turn is linked with the control device ( 24 ). When the speed (n₁; n₂; n₃; n₄) of one of the hydraulic motors ( 6; 7; 8; 9 ) exceeds a predetermined threshold value (n_g), the control device ( 24 ) triggers the brake device ( 26; 27; 28; 29 ) allocated to the associated hydraulic motor ( 6; 7; 8; 9 ).