What does a simple drum wheel brake consist of?

A typical drum brake is mainly composed of bottom plate, brake drum, brake shoe, brake wheel cylinder (brake cylinder), return spring, positioning pin and other parts. The bottom plate is installed in a fixed position of the shaft. It's still. Equipped with brake shoe, wheel cylinder, return spring and positioning pin, and bear the rotating torque when braking. Each brake drum has a pair of brake shoes with friction linings. The brake drum is installed on the wheel and rotates with the wheel. It is made of a certain weight of cast iron and looks like a drum.

The drum brake uses the brake transmission mechanism to make the brake shoe press the brake friction plate to the inner side of the brake drum, thus generating braking force, and slowing down the wheels or stopping in the shortest distance as required, thus ensuring driving safety, ensuring that the car can stop reliably and will not slip automatically.

Hope to adopt.