Axle brakes include: disc brake, roller brake, drum brake, common brake, etc., that is, the braking force acts on the wheel axle to stop the axle,
thus stopping the car.
1. Disc brake: a relatively new braking method, which was commonly used on motorcycles in the early days. It has the characteristics of light weight, good braking effect, mud prevention and so on. Because of its high price, it is a popular accessory for many mountain bike enthusiasts. Disadvantages: the failure rate < P > is high due to the cost and fragility of the disc. This kind of brake is common in mountain bikes, recreational vehicles and other models that do not require excessive body weight.
2. Roller brake: a popular bicycle braking method in Japan. Due to the design of similar bearings made of all steel, the braking effect and life are excellent, and it can be said that it is a once-and-for-all accessory. However, due to the patent (invented by SHIMANO Company in Japan), the accessory
is not universal, so it cannot be matched with flower drums and brake parts at will.
advantages: long service life (ten years is not a problem), safety and reliability, and low noise.
Disadvantages: It is the heaviest of all brake accessories and has poor versatility. This kind of brake is common in recreational vehicles (daily travel, walking to work)
3. Drum brake: an early all-steel brake, in which the brake parts are integrated with the flower drum or cannot be completely separated. At present, it has been eliminated (on bicycles < P >), and it is common in old-fashioned flying pigeons, permanent, phoenix and other cars. Japanese reverse brake (pedal backward to brake) also belongs to this category. Some electric cars and motorcycles are still in use. It is noisy when braking.
4. Braking: A kind of braking device that relies on the huge friction generated by rubber or steel spring and the friction device installed on the flower drum. Because of its simple structure, low cost and good reliability, it is commonly used in daily leisure scooters.
Disadvantages: heavy weight, fear of water, loud noise during braking and short service life.
wheel brakes include: v brake, caliper brake, suspension brake, etc. That is, the braking force acts on the wheel rim, making the axle stop rotating, thus stopping the car.
1.v-brake: V-brake is a very common braking device on bicycles. Two brake shoes clamp each other to generate friction, and the braking effect is achieved from
. Because its shape resembles the word "V", it is called V brake. V-brakes are widely used in various bicycles and electric vehicles.
advantages: light weight, simple structure, convenient installation, maintenance and repair, low cost and high cost performance.
Disadvantages: it is easy to slip in rainy days, mud or wading roads.
2. caliper brake: the brakes of road vehicles are mostly caliper brakes. The caliper brake is to fix the brake frame at a position on the front fork of the road vehicle. In fact, its working principle is similar to that of the v
brake.
advantages: light weight, simple structure, convenient installation, maintenance and repair, low cost and high cost performance.
Disadvantages: it is easy to slip in rainy days, mud or wading roads. The braking effect is limited by the tire diameter, and the caliper < P > brake is generally used for cars with smaller tire diameter.
3. Suspension brake: The principle is the same as that of the V-brake, which can also be said to be a simplified version of the V-brake. However, it has been basically eliminated due to poor reliability, and it is common on inexpensive bicycles, but it also appears on professional racing road vehicles due to its light weight.