Improving Braking Efficiency by Upgrading the Design of the Clamping Mechanism of the Braking Device

The interaction of the working pairs of the braking device with the clamping mechanism during the movement of the electric train trolley on a turn is analyzed. The resulting roll of the wheelset leads to the formation of local contact areas of the pad with the surfaces of the brake disc. As a result, there is uneven interaction within not only one wheelset, but also unevenness within one brake unit. To eliminate this drawback, an improved design of the clamping mechanism has been proposed, allowing the pads to rotate in three planes, which increases the contact area of the working pairs. An actuator was used to adjust the interacting pads with the disc surface. Computer simulation of the braking process by power devices with serial and improved clamping mechanisms was carried out. The use of a brake with an improved clamping mechanism has reduced braking time by 1.28 times compared to the standard brake. The normal forces in contact were reduced by 57.5 times, which showed an increase in braking efficiency when passing curved sections of the track.

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