Due to the increasing use of hydraulic winches on working machines, there is a growing need for appropriate sizing of their hydraulic drives. This thesis deals with the design of hydraulic drives for three forestry winches with different rated pulling forces. Based on their design parameters, the required torque and rotational speed of the hydraulic motor were determined. A computational programme was developed to select suitable hydraulic motor and to determine its torque and rotational speed at different pressure and flow rate values. The results were compared with the requirements of the individual winches to evaluate the suitability of the selected hydraulic motors.
|
