DZD-1 unit brake

Application:The DZD-1 brake unit is powered by compressed air and has a mechanical booster mechanism and an automatic clearance adjustment mechanism. The main structure consists of brake shoes and brake shoe supports, a box with a brake cylinder, a set of wedge-shaped booster and force transmission mechanisms, and a built-in brake shoe clearance adjuster that can automatically compensate for the wear of brake shoes and wheel treads.Main features:Basic structural characteristics of brake shoe (tread) brake unit:The amplification mechanism of ▲ force is based on the principle of wedge angle amplification, which makes the braking unit lightweight, small in size, large in output force, and wide in range.The one-way clearance adjuster ensures the non adjustability of elastic deformation, ensuring effective clearance between the brake shoe and the wheel tread.The arc-shaped slider type and pivot movable radial movable brake shoe support structure can automatically maintain uniform brake shoe clearance and preventBrake shoes are slightly worn.▲ When replacing the brake pad with a new one, it saves time and effort. Use a 16 hex wrench to turn the inner hexagonal adjustment nut behind the brake unit,▲ It can quickly and conveniently reset the brake shoe support to obtain the space required for installing new brake shoes.Working principle:When braking, pressure air P enters the brake cylinder, overcomes the force of the restoring spring of the wedge-shaped force increasing mechanism, pushes the wedge-shaped force increasing mechanism downward, and pushes the bearing bracket and clearance adjuster forward, pushing the brake shoe holder to make contact with the wheel tread, thus achieving the braking effect.Basic parameters:▲ Brake cylinder diameter 180mm;▲ Normal clearance (backlash) between brake pads and wheel tread is 3-5 ± 1mm;▲ Brake shoe clearance adjustment capability: 12.5mm;▲ Single stroke of brake shoe: 11mm;When the air pressure is 0.45MPa, the brake unit outputs a positive pressure of not less than 37KN;