Jiaozuo brake

Hydraulic electromagnetic block brake: Using hydraulic electromagnetic blocks instead of long travel block brake electromagnets, there are two types: YWZ (hydraulic push rod) and YDWZ (hydraulic electromagnet). The YWZ type brake is stable, noiseless, and small in size, making it suitable for operating and rotating mechanisms. Due to its slow braking action, it is not suitable for the use of lifting mechanisms to prevent hook slipping. The YDWZ model has good performance in various aspects and does not require frequent adjustments. It only requires a DC power supply. The working principle of an electrified electromagnetic brake is: when the magnetic coil is used, the electromagnetic force attracts the brake pad, and the brake disc is released using the brake pad. At this time, the transmission shaft runs or starts normally with the brake disc. When the current of the electromagnetic brake is cut off, the brake pad will disengage from the brake disc, Friction torque will be produced between the brake disc, brake pad and flange plate, and the transmission shaft will stop quickly

The structure of the power outage brake:

It mainly consists of two parts: brake electromagnet and brake shoe brake.

The brake electromagnet is composed of three parts: an iron core, an armature, and a coil. The brake shoe brake includes the brake wheel, brake shoe, and spring, etc. The brake wheel and the electric motor are installed on the same shaft.

Working principle: When the electric motor is connected to the power supply, the electromagnetic brake coil is also energized, and the armature is attracted to overcome the tension of the spring to separate the brake shoe and brake wheel, resulting in normal operation of the electric motor. When the switch or contactor is disconnected, the motor loses power, and the electromagnetic brake coil also loses power. The armature separates from the iron core under the force of spring tension, causing the brake shoe of the brake to tightly hold the brake wheel, and the motor is stopped by braking.

Characteristics of electromagnetic holding brake braking

Mechanical braking mainly adopts electromagnetic brake and electromagnetic clutch braking, both of which use the electromagnetic coil to generate a magnetic field after being energized, causing the static iron core to generate enough suction to attract the armature or moving iron core (the moving iron core of the electromagnetic clutch is attracted, and the dynamic and static friction plates are separated), overcoming the tension of the spring and meeting the requirements of the work site. Electromagnetic brake relies on the friction plates of the brake shoe to brake the brake wheel. Electromagnetic clutch uses sufficient friction between the dynamic and static friction plates to immediately brake the motor after power failure.

In 2004, it was awarded the title of High Quality Product in Henan Province. Obtained the National Industrial Product Production License in April 2008 (For explosion-proof electrical appliances, Jiaozuo Hydraulic Brake Factory, brake manufacturer, crane brake, thruster brake, YT1 thruster, explosion-proof brake, wind brake, electromagnetic brake mainly produces YWZB, YWZ2, YWZ3, YWZ4, YWZ5, YWZ6, YWZ8, YWZ9, YWZ10, YWZ12, YWZ13 series electric hydraulic block brake. All kinds of explosion-proof brakes, TJ2 series new energy-saving electromagnetic brake, JZ electromagnetic brake, ZWZ electric brake Magnetic brake, ZWZ3 electromagnetic brake, ZWZA electromagnetic brake, MW electromagnetic brake, MWZ electromagnetic brake, ZWZ electromagnetic brake coil, ZWZ3 electromagnetic brake coil, ZWZA electromagnetic brake coil, MW electromagnetic brake coil, YPZ2 electric hydraulic arm disk brake, QP pneumatic caliper disk brake, DCPZ electromagnetic caliper disk brake, SB hydraulic caliper disk brake, YQP hydraulic caliper disk brake, SBD hydraulic disk brake, SBD-A safety brake, SBD-B disc brake

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

The long stroke electromagnetic block brake relies on the main spring to apply and the electromagnet to release.

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

The advantage of electromagnetic block brakes is that they have a simple structure and 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.

Many friends who know about cranes know that cranes are composed of electric motors, brakes, reducers, drums, and pulley blocks, which together form the purpose of cranes.

Various electromagnetic diagrams such as JZ