Low-voltage Frequency Conversion Speed Regulation System
The system uses ABB ACS800 series transducer as main control equipment, specially designed for frequency conversion system of the hoisting equipment. The system has constant torque and low-speed starting 100% torque, speeding up stably and reliably. In the whole circulation, the system can effectively stop or remove the elastic vibration of the wire rope, guaranteeing accuracy of positioning and stopping, with error less than ±3cm. Main loop is 6-pulsation control mode, which can work according to set speed and hoisting requirements within four quadrants, regulate speed acceleration, constant speed and speed reduction of the hoist automatically, and has some protection functions of over-current, over-voltage, under-voltage, over-speed, etc. Besides, the system has some advantages of surge voltage control, energy saving, easy operation and maintenance. The system is universal to various hoists, which can be connected with various hydraulic stations. The system is widely used in lifting materials and staff in inclined shaft or silo of coal mine, metal mine and non-metal mine.
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Low-voltage Frequency Conversion Speed Regulation System
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Low-voltage Frequency Conversion Speed Regulation System
The system uses ABB ACS800 series transducer as main control equipment, specially designed for frequency conversion system of the hoisting equipment. The system has constant torque and low-speed starting 100% torque, speeding up stably and reliably. In the whole circulation, the system can effectively stop or remove the elastic vibration of the wire rope, guaranteeing accuracy of positioning and stopping, with error less than ±3cm. Main loop is 6-pulsation control mode, which can work according to set speed and hoisting requirements within four quadrants, regulate speed acceleration, constant speed and speed reduction of the hoist automatically, and has some protection functions of over-current, over-voltage, under-voltage, over-speed, etc. Besides, the system has some advantages of surge voltage control, energy saving, easy operation and maintenance. The system is universal to various hoists, which can be connected with various hydraulic stations. The system is widely used in lifting materials and staff in inclined shaft or silo of coal mine, metal mine and non-metal mine.
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Full digital mine hoist explosion-proof and intrinsically safe four-quadrant frequency conversion speed control system, consisting of integrated driver's operating console, mine explosion-proof and intrinsically safe four-quadrant frequency conversion speed control device, mine explosion-proof and intrinsically safe winch control box (including intrinsically safe counting sensor).
1. Main shaft and hub are entirely forged, and hub and friction spoke are connected with high-strength bolt.
2. It uses high-strength friction pad, with high frictional factor, good wear resistance and strong anti-corrosion, which absorbs vibrational energy of the wire rope, prevents twist of the wire rope, and can’t be soaked.
This product is designed and manufactured according to AQ1036-2007, "Safety Inspection Specification for Multi-Rope Friction Hoist for Coal Mine", GB/T10599-1988 "Multi-Rope Friction Hoist", "Coal Mine Safety Regulations", Q/XTD005-2010 "Multi-Rope Friction Hoist" and the current relevant mining machinery product standards. Mainly used in coal mines, metal mines, non-metallic mines ground shaft, for lifting minerals and lifting personnel, materials and equipment.
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