Parking brake chamber for excavators, bulldozers, graders, loaders, and other construction machinery spare parts: 14557712000 1455-77-12000

Parking Brake Chamber for Excavators, Bulldozers, Graders, Loaders, and Construction Machinery Spare Parts 14557712000 1455-77-12000

In the braking system of construction machinery, the brake chamber (sometimes called the brake caliper) is a key actuator. Its function is to convert compressed air pressure into mechanical force, thereby driving the brake camshaft to rotate and achieve braking action. The brake chamber also plays an important role in the parking brake function.

Specifically, the working principle of the parking brake system is generally as follows:

Parking Brake State: When the vehicle is parked, there is no compressed air in the right chamber (or corresponding chamber) of the brake chamber. At this time, under the action of spring force, the piston body is pushed to one side, engaging the brake (such as a shoe brake) through a connecting mechanism (such as a double-ended stud, cam tie rod, etc.), thereby locking the wheels and preventing the vehicle from moving.

Releasing the parking brake: When it is necessary to release the parking brake, compressed air enters the right chamber of the brake chamber, pushing the piston against the spring force. This movement, through the connecting mechanism, releases the brake, allowing the vehicle to move normally.

Furthermore, modern construction machinery parking brake systems emphasize safety. For example, new regulations require parking brakes to have a purely mechanical locking device, ensuring the vehicle remains securely locked even in the event of a power outage or hydraulic system failure. Additionally, the operating lever must have an anti-accidental activation design.