Hengyang Heavy Industry MWZ500-2500 Electromagnetic Drum Brake DC Equal Retraction Device

Due to the limitation of the electromagnetic attraction of the short stroke electromagnetic brake, the braking torque of the short stroke brake is generally not large. Mechanisms that require high braking torque often use long stroke electromagnetic drum brakes.

Hengyang Heavy Industry's long stroke electromagnetic drum brake relies on the main spring to apply and the electromagnet to release.

The commonly used long stroke electromagnetic drum brake is the JCZ type 200-600 brake. It is mostly used on Overhead crane of 20-30 tons or more.

The advantage of Hengyang Heavy Industry's electromagnetic drum brake is its simple structure, which can be interlocked with the control circuit of the motor. Therefore, when the motor stops working or an accident power outage occurs, the electromagnet can automatically power off and the brake will automatically switch on, ensuring safe and reliable operation. However, there is a major drawback that the electromagnet has a strong impact, causing severe braking on the mechanism and causing mechanical vibration of the transmission mechanism. At the same time, due to frequent starting and braking of the lifting mechanism, the electromagnet produces a huge collision sound, and the service life of the electromagnet is short, requiring frequent repair and replacement.

Electromagnetic brake is a universal transmission device widely used in various fields such as packaging machinery, printing machinery, machine tools, automation equipment, etc. How to ensure the service life of this product, which factors can affect its service life, as so many industries have applied it? Hengyang Heavy Industry Brake has made the following analysis:

1. It is related to load characteristics, dynamic load torque and static load torque. Large loads, sudden loading, and incomplete unloading methods can also have a significant impact on the lifespan of electromagnetic brakes.

2. It is related to the lifespan of brush materials, and high-quality brush materials can extend the service life of electromagnetic brakes.

3. Related to the friction materials of electromagnetic brakes, the use of new friction materials has a longer lifespan than conventional friction materials.

4. It is related to the reaction time of the electromagnetic brake action, that is, the time for powering on and releasing should be short, otherwise it will shorten the service life of the electromagnetic brake.

Electromagnetic brake is an electric device that relies on the electromagnetic attraction generated by the electromagnetic system to make the armature work externally. Due to the characteristics of convenient loading and unloading, good response performance, high reliability, and green environmental protection, electromagnetic brakes are widely used in construction machinery.