We all know that a crane is a kind of large-scale mechanical equipment with a large workload every day. The brake is very important in its various mechanisms and is an indispensable part to ensure the safe operation of the crane. It is an important component used to ensure accurate, reliable and safe operation of the crane.
The braking device of the hoisting mechanism ensures the stop position of the hanging object, and can keep the hanging object in this position after the hoisting mechanism stops running, so as to prevent the heavy object from falling.
The braking device of the running mechanism and other mechanisms is used to realize the parking and keep it in the parking position. In special cases, the speed of the mechanism can also be reduced or adjusted according to the needs of the work.
Crane brake device usually consists of crane brake, brake wheel and brake drive device. It includes three aspects of adjustment work: adjusting the working stroke, adjusting the braking force, and adjusting the braking clearance. It realizes the mechanism braking through the principle of friction.
When the friction part of the brake set on the static base presses the friction part on a certain running shaft in the mechanism with a certain force, the friction force generated between the two contact surfaces produces a friction torque on the rotation axis. The torque is often referred to as the braking torque.
When the braking torque is balanced with the torque generated by the torsional force when the hanging object is running, the braking requirement is achieved.
