Where does the brake play a role in inertia?

For mechanical equipment, when it is required to stop running, it is necessary to use brakes for braking, but we know that after braking, due to inertia, mechanical equipment is still running, but the speed is not as fast as before. So what is the role of the brake on inertia? The brake is mainly used in the walking brake of the door crane, and the interaction between the inertial force of the load and the motor torque is used to make the relative rotation between the concave and convex spiral surfaces when the motor starts, and the axial displacement is generated, and the friction pair is opened to release the brake, and the opening distance is limited by the limiting device. When the motor is powered off, the force between the concave and convex spiral surfaces disappears, and the spring energy is released, so that the brake pair is bonded and brakes are generated. It is both a brake and a coupling, with secondary braking and dynamic wind protection. Dynamic windproof means that in the case of downwind walking, when the gust of wind reaches the driving force of the motor, the force between the concave and convex spiral surfaces will disappear, and the spring will be released to form an instant braking and opening, and the driver will have an unstable feeling, prompting the driver to stop, and after stopping, the safety will be guaranteed by the large braking force. The second braking inertia brake has the characteristics of small walking braking torque and large braking torque after stopping, which is generated by its structural characteristics. Before the motor is stopped, the braking torque is used to brake the motor and the load, and the braking torque is divided into two parts, one part is used to brake the motor, and the other part is used to brake the load. An axial reaction force is generated between the brake spiral surfaces of the motor to counteract the pressure of part of the spring on the brake disc. After stopping, the braking force is all loaded onto the load, so the braking torque is larger.