Drum brake - feature

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2020-03-15 00:20:07

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Drum brakes – the so-called brake system, which consists of a rotating drum. It achieves braking by pressing to the drum brake pads.

Drum brakeAs usual, the pads in such a system how drum brake located inside the drum. If they are arranged on the outside of a cast iron flat disc, such a mechanism is referred to as disk. Drum brakes are still a different kind – a ribbon. This braking mechanism is carried out by “coverage” drum brake flexible metal tape.

This device, which has two working cylinders, the efficiency increases with the rotation of the drum when the car carries out the movement. It is during braking, presses the pads even more. Similar to no effect on the disk mechanisms, because the drive provides rotation in the direction perpendicular to the direction of the braking force. When the machine moves forward and starts to act front porch. It is called the incoming to the secondary brake Shoe (otherwise it's called back).

Drum brakeNecessary to enumerate what are the key elements has a drum brake. This pad, which carry out braking. To do this, they have a lining made of friction material. Also, its packaging has a brake drum, and brake wheel cylinders. The first of these under the pressure of a special fluid, which is hydraulic, comes into effect from the brake pedal. All these parts are mounted on the brake shield (stamped base).

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In addition, the drum brakes have fingers (axis) brake pads, mechanisms regulating clearance between the drum and pads, springs that hold the pads in place and reduce them after the driver releases the brake pedal.

rear drum brakeAnd, of course, not to enumerate the advantages of this mechanism. It is used on trucks (mostly) and cars. Can still use on motorcycles. The main advantage of this mechanism is its capacity. Or rather, the fact that it is extremely easy to increase with increasing drum diameter and width. This makes it possible to achieve a high absolute values of the braking effort necessary to stop and slow down, heavy vehicles (buses, trucks). Drum brakes are perfectly protected from water and dust, but rather from their contact. Pads on a dirt or dusty road, less wear – it is a great quality that makes the mechanism is durable. If you use this, it is possible to greatly simplify the equipment of the vehicle Parking brake. In addition, such mechanisms do not emit a lot of heat, and this makes it possible to use a non-hygroscopic brake fluid on an alcohol-oil base. Such advantages and have rear drum brakes. It should be noted only one drawback - the reaction from them is a bit slow when compared with disk.


Article in other languages:

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BE: https://www.tostpost.com/be/a-tamab-l/39020-barabannyya-tormazy---haraktarystyka.html

DE: https://www.tostpost.com/de/autos/38542-trommelbremsen---eigenschaft.html

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JA: https://www.tostpost.com/ja/cars/21073-drum-brake---feature.html

KK: https://www.tostpost.com/kk/avtomobil-der/39393-barabandy-tezheg-sh---sipattamasy.html

PL: https://www.tostpost.com/pl/samochody/41073-hamulce-b-bnowe---charakterystyka.html

PT: https://www.tostpost.com/pt/carros/40734-tambor-de-freio---caracter-stica.html

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UK: https://www.tostpost.com/uk/avtomob-l/39833-barabann-gal-ma---harakteristika.html

ZH: https://www.tostpost.com/zh/cars/28780-drum-brake---feature.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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