The advantages and disadvantages of drum brake

   The advantages of self braking function: drum brake with self braking effect, because the brake pad and a rotating wheel, anda brake drum twist an angle (of course not to be large enough toallow you to easily see) the brake pad tension (braking force) is greater, more situation obviously, therefore, generally large vehicles or the use of drum brake, in addition to low cost, drum brake large cars and small cars, the difference may have largegas dynamic auxiliary, and the small car production of vacuum assisted to help brake. Low cost: drum brake manufacturing technology level is low, is also the first for the brake system, so the manufacturing cost is lower than the disc brake.

As a result of the shortcomings of the drum brake brake pads on the brake drum sealing, causing the brake pad wear afterchipping can not be dispersed, effects of brake drum and liningof the contact surface and the effects of brake performance. The greatest disadvantage of drum brake is a rainy day with rain willskid, brake failure caused by this is the most terrible leading trailing shoe brake growth and reduce the potential function, the auto forward when the brake drum rotation direction (this is called the brake drum is rotated). Brake hoof 1 bearing point 3 in the front, brake wheel cylinder 6 by prokinetic effect on the back end, the rotating direction of the rotating direction of the brake shoe and brake drum when open the same. Brake shoe has theproperty called hoof. On the contrary, the supporting point ofbrake shoe 2 of 4 on the rear end to the front end, driving force,the direction of rotation of the rotation direction when open and brake drum instead. Brake shoe has this property is called from the shoe. When the car was driving, the brake drum rotating reversely, hoof 1 turns from the shoe, and shoe 2 has becomethe leading shoe. The brake drum forward rotation and reverse rotation, has a leading shoe and a trailing shoe brake that is known as the leading trailing shoe brake. Two piston brakeapplied prokinetic is equal.

Electromagnetic Clutches And Brakes

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