SBD-A SAFETY BRAKE

SBD-A series hydraulic clamp disc brakes (hereinafter referred to as brakes) are mainly used for emergency safety braking of the low-speed shaft of the main hoisting mechanism (boom pitching mechanism) of large and medium-sized cranes, or large and medium-sized winch hoists and tilting The working brake and emergency brake of the driving mechanism of the type belt conveyor, as well as the safety braking of the driving mechanism of the cable car and the cable crane.

The SBD-A series brakes are released by hydraulic drive, and braked by disc-shaped projectiles. Its structure is shown in Figure

1. It consists of a brake frame and a hydraulic cylinder. Its working principle is as follows: The brake oil cylinder supplies pressure oil, pushes the piston to move inward and further compresses the disc arrow, the brake pad is driven by the piston rod to separate from the brake disc, and the braking torque is eliminated.

When the hydraulic station is connected under the control of the system command In the oil return channel, the pressure oil returns to the oil tank of the hydraulic station under the action of the disc arrow force, the piston returns, and the disc arrow force in the oil cylinder is transmitted to the brake disc through the brake arm and brake shoe to generate a specified braking torque.

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