Disk braking mechanism of a tractor produced by Minsk tractor works

Operation of tractors in high-mountain conditions is very different from their use in flat terrain. When braking on a steep long slope with large number of turns with minimal radius, the intensive heating of braking mechanisms is occurred, which not only reduces the efficiency of braking system, but also often leads to a complete failure. The aim of the study is to improve the operational efficiency of disk braking mechanism of a tractor produced by Minsk tractor works when braking during direct motion by means of increasing the impact of pressure disk on brake disk by the use of tractive effort torques that arise between them. The general characteristics of tractor braking mechanisms, as well as the characteristics of a proposed improved braking mechanism are given. The improved braking mechanism allows to rotate simultaneously the pressure disks in the direction of rotation of brake disks during tractor forward motion. At that, the tractive effort torques generated in the process of interaction of surfaces of pressure and friction disks match with the torques applied to the pressure disks from the side of brake gears. As a result, the total axial forces affecting from the side of pressure disks on brake disks are increased, which leads to the efficiency improvement of tractor braking. The patent no. 2435997 for the invention of disk braking mechanism has been received based on this study. The proposed design significantly improves the braking capabilities of a tractor. It can be used in the braking systems of tractors, vehicles and motorcycles.

disk braking mechanism, tractor, Minsk tractor works, pressure disk, brake disk, friction disk, brake gear, tractive effort torque, braking torque, tractor braking, radius of friction, spacer balls, friction facings