Brake Supplier: Structure and characteristics of the brake

Brake Supplier Brakes can be classified by structure into block, band, disc, and cone types.

 

　　Brake Supplier Brakes can be classified by structure into block, band, disc, and cone types. According to operating conditions, they can be classified as normally closed, normally open, or combined. By drive method, they can be classified as automatic control and combined control. According to the type of power source, they can be classified as manual, foot-operated, electromagnetic, hydraulic, and electromagnetic-hydraulic combinations.

 

　　Brake Supplier: Block brakes have a simple structure and reliable operation. Block brakes are divided into short-stroke and long-stroke types. A short-stroke electromagnetic block brake using a main spring and a frame lever is used for braking, acting on the brake pads of the left and right wheels. The auxiliary spring provides outward force to the right brake arm, facilitating nut loosening, armature stroke adjustment, and adjustment of the braking torque on the main spring nut tightening.

       

　　Brake Supplier: When energized, the electromagnetic iron armature of the electromagnet presses against the push rod, further compressing the main spring. The eccentric pressure of the left brake arm acts on the weight of the electromagnet, causing it to swing outward. The left brake block moves away from the brake wheel, and the adjusting nut is adjusted until it stops. The right spring brake block is placed on the brake wheel of the left and right brake arms for braking. The braking stroke is short, characterized by quick release and braking action; the brake is heavy and compact; as a hinge, the release dead due to small stroke; due to the hinge between the brake pad and brake arm, the contact between the brake pad and brake wheel is even, and easy to adjust. However, because the short-stroke brake acts quickly, the impact force of the suction force directly acts on the entire braking mechanism, so the screws on the brake are easily loosened, leading to brake failure and reduced operational reliability, requiring frequent inspection; at the same time, due to the short braking stroke and fast action, the crane will cause violent vibration of the bridge under the action of inertia. Short-stroke brakes are mostly used in the running mechanisms of small cranes with smaller lifting weights and elevator running mechanisms.

 

　　Brake Supplier: Drum brakes were one of the earliest types of brakes used in automobiles and are widely used in trucks or buses. Compared with disc brakes, drum brakes have the advantage of being able to generate a large braking force with a relatively small force, but their hot water fade resistance, self-adjustment of braking clearance, and stability of braking direction are relatively poor.

 

　　Brake Supplier Drum brakes can be applied to the front or rear wheels. Drum brakes have more components than disc brakes. The main components include the base plate, brake wheel cylinder, return spring, limit spring, adjuster, brake shoe, and brake drum. When braking force is applied, the brake pedal force is transmitted to the master brake cylinder with the assistance of a vacuum booster. The master cylinder delivers hydraulic pressure to the brake lines and brake hoses. Under the action of hydraulic pressure, the piston of the brake wheel cylinder pushes outward, causing the brake shoe to contact the brake drum. The friction between the brake shoe and the brake drum forces the brake drum to slow down, thereby reducing vehicle speed and bringing the vehicle to a stop. When the braking force is released, the hydraulic pressure in the hydraulic system decreases. Under the action of the return spring, the piston of the brake wheel cylinder returns, and the brake shoe separates from the brake drum, eliminating the friction between the two.