Products Description

Transformation of hoist chain frequency conversion speed regulation technology:

Transformation of hoist chain frequency conversion speed regulation technology completes high efficiency mode:

Mine hoist is an important equipment in the production process of coal mines and non-ferrous metal ores. The reliable operation of the hoist is directly related to the company's production situation and economic benefits. In order to overcome the shortcomings of the traditional communication wire-wound motor string resistance speed regulation system, the variable frequency speed regulation technology is used to transform the hoist, which can complete the constant torque control in the full frequency range. The hydromechanical brake needs to be kept, and the hydromechanical brake and the inverter brake are combined in the drawing process.

The load characteristic of the hoist is a constant torque potential energy load with a large starting torque. When selecting an inverter, leave a proper margin. Because the hoist motor is in an electric state most of the time, and only a small amount of regenerative energy occurs, the inverter is connected to a braking unit and a braking resistor, which can satisfy the regenerative braking when the heavy truck is descending, and complete a stable Down. The hydraulic mechanical brake is controlled by the original control system and the frequency converter. Whether the mechanical brake is controlled by the frequency arrival port of the frequency converter, when the output frequency of the frequency converter reaches the set value at startup. After the hoist is transformed by frequency conversion and speed regulation, the operating process of the system has not changed much.

The hoist chain enables the entire hoist to complete more useful operating conditions and reach the operating form after technical transformation.

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