Is to make the machinery moving parts to stop or slow down the machine parts

Is to make the machinery moving parts to stop or slow down the machine parts. Commonly known as the brakes, brake. Mainly by aircraft brake system, brake parts and steering devices and other components. Some brake is also equipped with an automatic brake parts gap adjusting device. In order to reduce the braking torque and structure-inch, high-speed brake is usually mounted on the shaft of the device, but for higher security requirements of large equipment (such as mine hoists, elevators, etc.) should be installed near the equipment and work in low-speed shaft section on. Some brakes have been standardized and dn series, manufactured by professional factory for selection.
Block brake
shoe brake, the brake pads against the brake pressed to achieve the brake wheel brake. Single axle braking pressure to the brake block and uneven, it is usually more than offset by a pair of brake pads, the pressure on the brake axle suffered brake pad.
Block brake hold outside and inside there are two kinds of sheets:
Outside hold block brake: it operated device according to the length of the trip is divided into short stroke and long stroke block brake block brake block brake short trip magnet mounted directly on the brake arm. When working around moving core pin rotation to achieve loose brake; tight against the main spring brake when the magnet energized. This brake structure compact, tight and loose brake brake fast action, but the impact force. Long stroke brake block brake lever system can produce large loose brake force, but slow braking action, suitable for large brakes.