Forces in the Lock-Off Device During the Rolling of the Brake Pulley Roller Over the Brake Ramp in the Built Automatic Parking House

Abstract

The paper describes the design of the device, which allows for the scanning and recording of force sizes impacting in horizontal and vertical directions during the rolling of the pulley, which is part of the brake of the lock-off device of the pallet truck, over the top surface of the brake ramp. The paper also presents the results of two experimental measurement procedures. The first measurements taken to obtain the values of the applied resistive forces when the cylindrical part of the pulley was inserted into the brake body were carried out without an installed cylindrical coil spring. The aim of the second measurement was to determine the forces acting on the brake body when the brake pulley holder resists the insertion into the brake body due to the rigidity of two types of compression cylindrical coil springs, type R16-102 and V16-102. These measurements were carried out in order to verify the theoretically calculated values of the acting forces. In the chapter “Pallet brake design” there is a suggestion and recommendation of the lock-off device manufacturer, which is used in the automatic parking system of variants “KOMA TOWER” and “KOMA MULTI TOWER”, to use a sensor to eliminate inaccuracies of parking location in a parking house using this APS option. The forces acting on the brake body, shown in the tables and graphs in this paper, are forces that occur when the brake pulley rolls over the upper surface of the brake ramp until the pulley engages in a circular recess in the brake ramp.