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AssigneeLeitner S.P.A.
InventorMichael Rechenmacher
Estimating the term…
A device for setting and automatic adjustment of the tractive forces of the cable of an overhead winch for a ski slope preparation and maintenance machine comprising an adjustment control unit connected to a controllable winch drive and a processing device connected to sensors and to the adjustment control unit is described. In accordance with the present invention the sensors are pressure sensors which detect the pressure applied to a selection valve (16,20) with maximum value with said valve being connected between the delivery ducts (6,8) of the drives on the right- and left-hand sides in a first travel direction or a travel direction opposite thereto with there being deposited in the processing device an algorithm which calculates a nominal value based on the pressure taken by the pressure sensors and which controls winch operation through the adjustment control unit.
Device for setting and automatic adjustment of the tractive forces of the cable of an overhead winch for a ski slope preparation and maintenance machine comprising an adjustment control unit connected to a controllable winch drive and a processing device connected to sensors and to the adjustment control unit characterized in that the sensors are pressure sensors which detect the pressure applied to a selection valve (16,20) with maximum value with said valve being connected between the delivery ducts (6,8) of the drives on the right- and left-hand sides in a first travel direction or a travel direction opposite thereto with there being deposited in the processing device an algorithm which calculates a nominal value based on the pressure taken by the pressure sensors and which controls winch operation through the adjustment control unit.
Device in accordance with the above claims characterized in that one of the sensors is a rotation angle transmitter which determines the angle α of the winch cable (24) or arm (23) relative to the longitudinal axis (25) of the vehicle with there being formed a signal proportional to the angle α which is fed to the processing unit for calculation of the maximum admissible tractive force.
Device in accordance with the above claims characterized in that one of the sensors is made up of the dynamometric pin applied to the cable for formation of a maximum admissible nominal tractive force.
Device in accordance with the above claims characterized in that to the adjustment unit is connected a potentiometer which can be set by the ski slope preparation and maintenance machine operator and allows input of a correction factor to increase or reduce the detected nominal tractive force.
Dependencies are inferred from the claim text.