Brake composition

The crane brake consists of a brake pad, a brake arm, a brake wheel and a brake. The brake wheel is often mounted as a half of the coupling on the rotating shaft of the mechanism, the symmetrically arranged brake arm is hinged to the fixed portion of the frame, and the two brake pads with the friction material on the inside are respectively articulated On the two brake arms, under the action of the slamming force on the sluice gate, the pair of brake dams hold the brake wheel in the radial direction to generate the braking torque.

When the power is turned on, the iron core of the electromagnetic release attracts the armature to the push rod, the push rod pushes the left brake arm to the left, and the main spring is compressed. At the same time, the auxiliary spring that releases the pressure pushes the right brake arm to the right, and the two brake arms drive the brake pad to separate from the brake wheel, and the mechanism can move. When the power is cut off, the core loses its magnetic force, and the attraction of the armature is eliminated, thereby relieving the pressure of the armature on the push rod. Under the action of the main spring tension, the two brake arms are swayed inwardly to drive the brake pad to hold tight. The brake wheel generates a braking torque; at the same time, the auxiliary spring is compressed. The braking torque is determined by the main spring force, and the auxiliary spring ensures the interstitial clearance. The braking performance of the block brake is largely determined by the performance of the brake.