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10 февраля 2021 г. 13:13

A drum brake is often a brake

A drum brake is often a brake that uses friction a result of a set of shoes or pads that push outward against a rotating cylinder-shaped part called a brake drum.

The term drum brake commonly means a brake in which shoes press on the inner surface on the drum. When shoes press on the outside of the drum, it is usually called a clasp brake. The location where the drum is pinched somewhere between two shoes, similar to a conventional disc brake, it can be sometimes called a touch drum brake, though this sort of brakes are relatively exceptional. A related type called a band brake functions a flexible belt or "band" wrapping about the outside of a drum.

The backing plate provides a base for the other components. The back plate also boosts the rigidity of whole set-up, sustains the housing, and protects it from foreign materials like dust as well as other road debris. It absorbs the torque through the braking action, and that's why back plate is also called as the "Torque Plate". Since all braking operations exert pressure about the backing plate, it have to be strong and wear-resistant. Levers pertaining to emergency or parking brakes, and automatic brake-shoe adjuster were also added in recent years.

The brake drum is mostly made of a special style of cast iron that is usually heat-conductive and wear-resistant. It rotates when using the wheel and axle. Every time a driver applies the brakes, the lining pushes radially resistant to the inner surface of this drum, and the ensuing friction slows or stops rotation in the wheel and axle, thus the vehicle. This chaffing generates substantial heat. During this design, one of your brake shoes always goes through the self-applying effect, regardless of whether the vehicle is moving forwards or backwards. [5] This really is particularly useful on this rear brakes, where the parking brake (handbrake or perhaps footbrake) must exert enough force to halt the vehicle from visiting backwards and hold it on the slope. Provided the contact class of the brake shoes is definitely large enough, which isn't always the case, the self-applying effect can securely hold a car or truck when the weight is transferred into the rear brakes due to the incline of a slope or the reverse path of motion. A further advantage of with a single hydraulic cylinder on the rear would be that the opposite pivot may be made by using a double-lobed cam that may be rotated by the action belonging to the parking brake system.

https://www.winhere.com.cn/Brake-Drums-pl3137543.html

 

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