The ZHT-3 disc brake system consists of a hydraulic aggregate, several ZH-3 brake calipers connected to it and the ATHamulec control system.
This set is designed for braking a conveyor in a specified time (set by the operator in the control system), irrespective of its loading.
The correct operation of the ZHT-3 set is controlled by the ATHamulec control system cooperating with the belt conveyor automation system and it enables the implementation of the braking and brake release process and checks whether the system functions correctly.
The control system reads the current speed of the brake disc from a speed sensor placed on one of the calipers at the moment when braking commences (it is also possible to use the reading of the linear speed of the conveyor belt) and on the basis of the set braking time decides on the appropriate braking stage and controls the operation of the hydraulic distributors, and consequently the value of oil pressure in the calipers, in such a way that the actual braking time equals the set one.
