The general working principle of the brake system is to […]
The general working principle of the brake system is to prevent the tendency of the wheels to roll or roll by utilizing the mutual friction between the non-rotating elements connected to the body (or the frame) and the rotating elements connected to the wheels (or the drive shaft).
A simple hydraulic brake system diagram can be used to illustrate the working principle of the brake system. A metal brake drum with an inner circular surface as the working surface is fixed to the wheel hub and rotates with the wheel. On the stationary brake floor, there are two support pins that support the lower ends of the two curved brake shoes. A friction plate is mounted on the outer circumference of the brake shoe. The brake base plate is also provided with a hydraulic brake wheel cylinder, and the oil pipe 5 is connected with a hydraulic brake master cylinder mounted on the frame. The piston 3 in the master cylinder can be operated by the driver via a brake pedal mechanism.
When the driver steps on the brake pedal to compress the brake fluid, the wheel cylinder piston presses the brake shoe against the brake drum under the action of hydraulic pressure, so that the brake drum reduces the rolling speed or remains stationary.
The resistance torque that must be applied to stop or decelerate the mechanical running component is called the braking torque. The braking torque is the basis for the design and selection of the brake. The size is determined by the type of the machine and the working requirements. The function of the friction material (brake) used on the brake directly affects the braking process, and the main factors affecting its function are the operating temperature and the temperature rise rate. The friction material should have a high and not chaotic coefficient of friction and good wear resistance. Friction materials are classified into metal and non-metal. The former is commonly used in cast iron, steel, bronze and powder metallurgy friction materials, the latter including leather, rubber, wood and asbestos.