Electrohydraulic Brakes For Cranes

Electric hydraulic brakes are widely used in deceleration or parking brake devices of mechanical drive devices in lifting machinery, metallurgical equipment, mining machinery, port machinery, construction and other industries.

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Description

The electric hydraulic brake is a common braking device, which is mainly used for deceleration or parking brake of various mechanical drive devices. This brake has the characteristics of safe and reliable performance, smooth braking and high action frequency. During use, it can keep the backing distance of the pads on both sides equal, avoiding the phenomenon that the brake pad on one side floats against the brake wheel due to uneven backing distance. In addition, the main swing hinge is equipped with a self-lubricating bearing, which makes the transmission efficiency high, the service life long, and no lubrication is required during use. The asbestos-free brake pad adopts a card-mounted structure, which is convenient and quick to replace.

Application areas of electrohydraulic brakes
Electric hydraulic brakes are widely used in equipment that requires high load and high precision braking, especially for high power and precision control occasions, such as:
Crane: used for precise braking of lifting mechanism, walking mechanism and running mechanism to ensure that the equipment is stable and reliable when carrying heavy objects.
Elevator and lifting platform: ensure that the load is lifted and lowered smoothly to prevent accidents due to power failure or hydraulic failure.
Machine tool equipment: used in the feed system of machine tools to ensure that the machine tools can stop quickly and prevent excessive movement.
Wind turbine: used to control the rotor of wind turbine to ensure that the wind turbine can stop safely in strong winds.

Conveyor belt system: used for efficient braking to ensure the stable operation and stop of the conveyor belt.

The main features of hydraulic brakes are:

1. The main swing hinges are equipped with self-lubricating bearings, which have high transmission efficiency and do not require lubrication during use;
2. The main performance is safe and reliable, the braking is smooth, and the action frequency is high. Electrohydraulic brakes for cranes
3. It has a chain-type equal back-off device, which always keeps the back-off distance of the pads on both sides equal during use, avoiding the phenomenon that the brake pad on one side floats against the brake wheel due to uneven back-off;
4. The brake spring is arranged in the spring tube, and a braking torque scale is provided on one side, which is convenient and intuitive to adjust;
5. Asbestos-free brake pads and brake shoes are card-mounted and inserted, which is safe and reliable, and easy and quick to replace.
Compliance with standards: The installation dimensions comply with GB6333-86 standards, and the technical requirements comply with JB6406-2006 standards.
The ambient temperature of the hydraulic brake support requires that the low temperature is not lower than minus 20 degrees Celsius and the high temperature is not higher than 50 degrees Celsius.

Application cases of electro-hydraulic brakes in cranes

01.

Used in the lifting mechanism of crane

In the hoisting mechanism of the crane with a normally closed electric hydraulic brake, when the hoisting mechanism is working, the brake is automatically opened by the system pressure to allow the hydraulic motor to operate. When the hydraulic motor stops, the brake is automatically closed under the action of the spring force to prevent the load from falling. This design can respond quickly to prevent accidents when the load tends to fall due to internal leakage of the hydraulic motor.

02.

Translation mechanism for crane

When the lifting or translation mechanism is working, the brake is automatically opened by the system pressure to allow the hydraulic motor to operate. When the hydraulic motor stops, the brake immediately stops the rotating part.