Product recommendations | DARO drum brake axle

Drum brake axle is adopted as drum brake axle. drum brake axle has been available for nearly 100 years, but it is still widely used in freight vehicles. Drum Brake Axle is the axle type with the highest proportion in the trailer axle market at present. It is more common to install on some semi-trailers, trailers or trucks.

Drum brake axle composition

Drum brake axle is mainly composed of axle body, brake assembly, wheel end assembly, camshaft assembly and so on.

Drum brake axle principle

Compared with disc axle, the most obvious feature of drum brake axle is the 360° closed brake drum at both ends of axle beam.

When the vehicle is moving, the brake drum rotates with the wheel, and the brake drum is provided with a static brake pad. When the vehicle needs to brake, the brake pad pushes outward under the action of the piston, scratches the inner wall of the brake drum and produces friction, so as to achieve the effect of braking.

Drum brake axle advantage

1, large braking force: Drum brake axle brake pad and brake Drum friction area is large, the friction generated is sufficient, so drum brake axle output braking force is large, especially suitable for relatively large weight cargo vehicles.

2, low production cost: drum brake technology came out earlier, in the field of vehicle braking application for a long time, the technology is more popular, in the production manufacturer's technical level is relatively low, so the cost input is less than the disc brake.

3. Convenient maintenance and replacement: at present, most parts of the drum brake bridge on the market have unified specifications and strong universality. If the follow-up needs to be replaced or maintained, it is relatively convenient.

Disadvantages of Drum brake axle:

1. Obvious thermal decay: although the brake drum around the seal provides stronger braking force, it also causes certain difficulties for the heat dissipation of the brake system, especially under the condition of continuous braking, the brake pad is prone to heat decay due to overheating, affecting the braking effect. Therefore, try not to step on the brake continuously for a long time. If the road conditions require it, take cooling measures or use auxiliary braking devices to avoid thermal attenuation of the braking system.

2, brake drum easy water retention: drum brake axle easy water, which will reduce the friction output between brake pad and brake drum to a certain extent, resulting in water attenuation. Therefore, after the vehicle wading or car washing, it is best to continuously step on a few feet brake, consume the moisture in the brake drum, but also can test the braking performance.

3, brake response is relatively slow: drum brake axle brake linkage is more complicated than disc axle, brake response is relatively slow, and the braking force is not easy to control, which is not favorable for high frequency braking.

4, daily maintenance is indispensable: also because of the complexity of the drum brake structure, many parts, the owner in the daily need to do regular maintenance, especially the adjustment of the brake gap, can not be taken lightly.

Drum brake axle application field:

Although it is true that Drum brake axle is inferior to disc axle in terms of brake stability, Drum brake axle still has irreplaceable advantages as disc axle for vehicles with large weight and load capacity, such as vehicles transporting sand and stone, steel coil, wood, coal and other goods.

In addition, Drum brake axle has a wide range of application. In addition to those transportation with high requirements on goods damage, most general cargo transportation can be applied.

It is undeniable that Drum brake axle of the same tonnage is much cheaper than disc axle in price, which is more acceptable to the majority of axle owners. Especially in the current environment where freight is generally low and oil price continues to rise, it is almost the consensus of the owners to reduce the cost of comprehensive vehicle.

Drum brake trailer axlecommon specification parameters:

Drum brake axle common faults and removal:

Drum brake axle maintenance frequency recommendations:

Drum brake axle Select DARO:

1. The raw material is 20Mn2 high-strength alloy seamless steel pipe produced by Tianjin "Da Seamless". The wall thickness is 10-11mm, and the tensile strength, yield strength, impact toughness and other properties are better, and the trailer axle strength, toughness, elongation and fatigue resistance are more outstanding.

2, built a special high standard factory, the whole production process is subject to unified, strict quality control, 15 production processes, fully meet the requirements of national standards.

3. The quality inspection program covers every link of design, production and testing. Meanwhile, the quality inspection workshop such as fatigue test, salt spray test and magnetic particle detection test of shaft body is set up. With high-precision instruments, the stress limit of trailer axle is accurately tested to ensure that fatigue failure does not occur during service.

4, select the industry for many years of deep cultivation of parts suppliers, such as Luoyang bearings, Huateng Heavy industry hub, Feiying brake pads, Mobil grease, quality after the baptism of the market and test, quality assurance ability is reliable.

5. All trailer axles, axles and accessories delivered by DARO Group are equipped with warranty service commitment letters, and a special after-sales team is set up to track users' usage and help customers solve product-related problems. DARO axle entered the market for 20 years, cooperative customers all over the world, always maintain zero quality disputes.

6. Axle customization service, design drawings and carry out customized production according to customers' actual use requirements, meet customers' different tonnage, wheel pitch, parameters and other requirements, and provide a variety of accessories matching schemes, so that customers can relax and feel more at ease.