DC Speed Regulation System
The automatic control system uses control module of Siemens 6RA70 series all-digital display DC speed regulating device as trigger device of thyristor or original rectified power module according to customer demands. The thyristor can be configured single-set 6-pulsation or parallel-serial 12-pulsation according to customer demands. For 12-pulsation, when one-set thyristor goes wrong, it can be switched 12-pulsation into 6-pulsation to work well, so it has high cost performance and easy maintenance and repair for DC motor.
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DC Speed Regulation System
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DC Speed Regulation System
The automatic control system uses control module of Siemens 6RA70 series all-digital display DC speed regulating device as trigger device of thyristor or original rectified power module according to customer demands. The thyristor can be configured single-set 6-pulsation or parallel-serial 12-pulsation according to customer demands. For 12-pulsation, when one-set thyristor goes wrong, it can be switched 12-pulsation into 6-pulsation to work well, so it has high cost performance and easy maintenance and repair for DC motor.
Main control, monitoring and safety protection system select Mitsubishi Fx2N (or original Siemens S7) series PLC. Dual PLC control forms network system, realizing intelligent control.
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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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