What is the difference between disc brakes and drum brakes for sedans?

Drum brake has a good self-braking effect, because the brake to make the piece outward, the wheel rotation with the outward tension of the brake drum twisted by an angle to make the piece tension greater, the drum brake cost, low technical level.

Because the drum brake pad is sealed in the brake drum, the fragmentation of the brake pad after wear cannot be dispersed, which affects the contact surface between the brake drum and the pad and affects the brake performance.

Disc brake, because the brake system is not sealed, so the brake wear can not accumulate on the brake, the centrifugal force of the disc brake can throw all water, dust and other pollution outward, in order to maintain a certain cleanliness. In addition, disc brake parts are easier to service than drum brakes because they are separated. In addition to the higher cost of disc brakes, they are basically better than drum brakes, but just this point, it has become its fatal injury, people love money, unless you are very rich, otherwise buying things is basically based on money first, do you say yes or no?

Disc brakes, also known as disc brakes, are named after their shape. It is controlled by hydraulic pressure, and the main components are brake discs, cylinders, brake calipers, oil pipes, etc. The brake disc is made of alloy steel and fixed to the wheel, which rotates with the wheel.

The sub-cylinder is fixed on the bottom plate of the brake. The two friction pads on the caliper are mounted on each side of the brake disc. The piston of the sub-cylinder is driven by the hydraulic action from the oil pipe, and the friction plate is pressed against the brake disc to cause friction braking, and the action is as if the rotating disc is clamped with pliers to force it to stop.

This kind of brake dissipates heat quickly, is light in weight, simple in structure, and easy to adjust. Especially under high load, the high temperature resistance is good, the braking effect is stable, and it is not afraid of mud and water invasion, in winter and bad road conditions, disc brakes are easier to stop the car in a shorter time than drum brakes. Some disc brakes also have many small holes in the brake disc to accelerate ventilation and heat dissipation and improve braking efficiency.

1. The disc brake (disc brake) has a large and stable braking force under the help of the liquid, and has good braking performance on various road surfaces, and its braking effect is much higher than that of the drum brake. Moreover, because the air passes directly through the disc brake, its heat dissipation is very good, but the disc brake structure is more complex than the drum brake, and the requirements for the paper moving pliers and pipeline system are also higher, and the cost is higher than that of the drum brake.

2. The drum brake (drum brake) is significantly inferior to the disc brake in terms of braking performance and heat dissipation, and its dynamic stability is poor, and the braking force performance on different roads changes greatly, which is difficult to control, and the drum brake also has thermal decay due to poor heat dissipation.

3. However, the drum brake is cheap and the structure is simple, and now most of the domestic cars still use the front disc and rear drum, but the disc brake is still the main trend to replace the drum brake.

Car brakes are available in drum brakes and disc brakes. Drum brake, the general drum brake is composed of a rotating part, a fixed part, an actuating part and a positioning adjustment device. It is only commonly used on the rear wheels.

Disc brakes, the brake pads on the calipers, the brake discs linked to the wheels, interact with each other during braking until the wheels stop turning. It is divided into disc type, ventilation disc type, disc type, and friction plate type. Here are the differences between disc brakes and drum brakes:

1. The drum brake is to install two semi-circular brake pads in the wheel hub, and use the "lever principle" to make the brake pads contact with the inner surface of the wheel drum and brake by friction. Disc brakes use brake calipers to control two brake pads to clamp the brake disc on the wheels. When the brake pads clamp the disc, friction occurs between the two;

2. The braking system of the drum brake can use a lower oil pressure, and the diameter of the drum brake will increase after being heated, and the brake response will be less than expected. Disc brakes have better heat dissipation than drum brakes, and will not cause brake recession and brake failure when continuously pressing the brakes. The braking force of the left and right wheels of the disc brake is relatively average, and the brake disc has good drainage, which can reduce the phenomenon of poor braking caused by water chain bend or sediment;

3. The handbrake mechanism of the drum brake is easy to install, and some of the rear wheels are equipped with disc brakes, and the drum handbrake is installed in the center of the brake bizhao ridge disc. The braking force is not easy to control, which is not conducive to sudden braking action. The friction area between the disc brake pad and the brake disc is smaller than that of the drum brake, so the braking force is weaker, and in order to improve the shortcomings of the braking force, a larger pedaling force or an increase in oil pressure is needed to improve the braking force;

4. The processing of parts of drum brakes is relatively simple, and the manufacturing cost is low, but there are many structural parts. Disc brakes are simple in structure and easier to repair, but the brake pads wear out a lot and are replaced frequently.

Millions of car purchase subsidies.

Hello, disc brakes (disc brakes) have large and stable braking force under the help of fluids, and have good braking performance on various road surfaces, and their braking effect is much higher than that of drum brakes. Moreover, since the air passes directly through the disc brakes, it dissipates heat very well. However, the disc brake structure is more complex than the drum brake, and the requirements for the paper tongs and pipeline system are also higher, and the cost is higher than that of the drum brake.

Drum brakes (drum brakes) are significantly inferior in braking performance and heat dissipation performance compared to disc brakes. Moreover, its dynamic stability is poor, and the braking force performance on different road surfaces changes greatly, which is difficult to control. Due to poor heat dissipation, the drum brake also has thermal decay.

However, drum brakes are cheap and simple in structure.

At present, most domestic sedans still use front disc rear drums. However, the wholesale replacement of drum brakes with disc brakes is still the main trend. Drum brakes can be changed to disc brakes.

<> "A friend said in the past few days that his Civic has only driven 3w kilometers, and as soon as he steps on the brakes, he will hear a screeching sound of metal rubbing. Do I need to change my brake pads? Today, I'm going to talk to you about the brake discs.

There are usually two types of brakes: "drum brakes" and "disc brakes". Except for a few cars that still use drum brakes, most models on the market use disc brakes.

Disc brakes (commonly known as "disc brakes") are based on the principle of using a brake caliper to control the first two brake pads and clamp the brake disc to the wheels. Through friction braking, the brake pads are getting thinner and thinner. A brand new brake pad thickness is generally about centimeters, and the brake pad has a raised mark of about 3 mm at both ends, if the thickness of the brake pad is equal to this mark, it should be replaced immediately.

If not replaced in time, the brake disc will wear out severely.

The braking system is directly related to the life of the owner and cannot be underestimated. Therefore, it is important to pay attention to any unusual noise coming from the braking system as soon as you hear it.

Service intervals for the brake system.

1.Brake pad replacement cycle: generally 6w-8w kilometers or about 3-4 years, vehicles equipped with brake induction lines have the function of alarm sleepiness. Once the wear limit is reached, the instrument will alarm and prompt replacement.

2.Brake discs have a lifespan of 3 years or more than 100,000 kilometers, and there's a formula to help you remember: change the brake pads twice, change the brake discs. Depending on your driving habits, you can also advance or slow down appropriately.

3.The replacement cycle of brake fluid is subject to the maintenance manual, and it generally needs to be replaced for 2 years or 40,000 kilometers. After the brake fluid is used for a long time, the leather bowl and piston in the brake pump will wear out, causing the brake fluid to become cloudy and the braking performance will also deteriorate.

In addition, brake fluid is generally not expensive, so as to avoid saving small money and causing big losses.

In short, the entire braking system is related to the life safety of the people on the car, so the braking system should be checked every 2 years or 40,000 kilometers, especially for cars that often drive at high speed or long distances, they need to be regularly maintained and checked.

There are two types of car brake systems: drum brakes and disc brakes, and many riders don't know what the advantages and disadvantages of drum brakes and disc brakes are.

Advantages of drum brakes:The braking force is very high, and the best braking effect can be achieved in a short time. Counterfeiting is cheap, has good performance on the road surface with more sand and gravel, and is more durable, suitable for large cars.

Disadvantages of drum brakes:The contact area between the brake drum and the brake pads is large, and the heat dissipation is poor, which affects the braking performance. Do not use it continuously at high frequency, otherwise it may cause brake failure or failure.

Advantages of disc brakes:It dissipates heat quickly and has excellent water stability. The braking force is relatively even, and the response is fast. The brakes are relatively smooth, the comfort is very high, it can be used continuously and frequently, and the structure is simple, which is convenient for daily maintenance and repair.

Disadvantages of disc brakes:The braking force is small, the wear is fast, and the brake pads need to be replaced frequently. The manufacturing process is relatively complex, so both the maintenance cost and the manufacturing cost are relatively high.

Which is better, disc brake or drum brake?

Disc brakes are a little better than drum brakes. As we can see from the above, whether it is braking performance or practicality, the performance of disc brakes is a little better than that of drum brakes. Drum brakes are still the earliest brake type of poor brakes, a bit old in terms of design, more suitable for some large cars, so if you are a car enthusiast who drives a car in the wild, I personally recommend choosing disc brakes, and if you want to save money, it is naturally better to drum brakes.