What is the difference between disc brake pads and drum brake pads?

Release time：

2023-05-18 09:26

What is the difference between disc brake pads and drum brake pads?
What is the difference between disc brake pads and drum brake pads?

The braking system of a car is one of the key components to ensure driving safety, and the most important one is the brake pads. Brake pads are divided into disc brake pads and drum brake pads, which have different structures and working principles.

The structure of disc brake pads and drum brake pads is different. The interaction between disc brake pads and brake discs is similar in structure to wheels, consisting of substrate, friction material, and adhesive. The drum brake pad interacts with the brake drum, and its structure is similar to a bucket, consisting of drum brake shoes, springs, and adjusters.

The working principles of disc brake pads and drum brake pads are also different. Disc brake pads generate braking force through friction with the brake disc. The braking process is relatively direct and simple, and the braking effect is more obvious. They are suitable for high-speed vehicles. The drum brake pad generates braking force through friction with the brake drum, and its braking process is relatively indirect and complex. The braking effect is relatively soft, suitable for vehicles driving at low speeds.

There are also differences in safety and maintenance convenience between disc brake pads and drum brake pads. Disc brake pads, due to their direct and obvious braking effect, make it easier for drivers to grasp the braking force, making driving safer. Meanwhile, the maintenance of disc brake pads is more convenient and easier to replace. The drum brake pads have a softer braking effect, and the braking force is difficult to grasp, which can easily lead to a long braking distance and high technical requirements for the driver. In addition, the maintenance of drum brake pads is more complex and difficult to replace than disc brake pads.

Disc brake pads and drum brake pads each have their own advantages and disadvantages, and are suitable for different driving scenarios. When selecting brake pads, it is necessary to consider factors such as vehicle type, driving scenario, and personal habits to choose the appropriate brake pad for oneself. At the same time, when using brake pads, it is also necessary to pay attention to the braking force and maintain good contact between the brake pads and the brake disc or drum to ensure driving safety.

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Essentials of brake pedal operation

1. Slow braking: Press the clutch pedal while releasing the accelerator pedal, push the gear lever to the low gear position, then lift the clutch pedal and quickly place the right foot on the brake pedal. Gradually press the brake pedal according to the required speed and parking distance until it stops.

The working principle of the brake

Use the mutual friction between non rotating components connected to the vehicle body (or frame) and rotating components connected to the wheel (or transmission shaft) to prevent the rotation or tendency of the wheel. A brake is a device that has the function of slowing down, stopping, or maintaining a stopped state of moving parts (or moving machinery). The brake mainly consists of a brake frame, brake components, and control devices, and some brakes are also equipped with automatic adjustment devices for brake component clearances. In order to reduce braking torque and structural dimensions, brakes are usually installed on the high-speed shaft of equipment, but large equipment with high safety requirements (such as mine hoists, elevators, etc.) should be installed on the low-speed shaft near the working part of the equipment.

Disc and drum brake systems for motor vehicles

The function of the car braking system is to slow down or stop the driving car according to the driver's needs, maintain a stable speed for downhill driving, and keep the stopped car in place. According to the timing of the braking system, it can be divided into service braking system, parking braking system, emergency braking system, and auxiliary braking system. According to the braking control energy, the braking system can be divided into manual braking system, power braking system, and servo braking system. According to the transmission mode of braking energy, braking systems can be divided into mechanical, hydraulic, pneumatic, electromagnetic, and combination braking systems. The automotive braking system mainly consists of four parts, namely energy supply device, control device, transmission device, and brake.