Integrated permanent-magnet variable-frequency coal cutter rocker arm device

• Main Authors: YANG XIAOLIN, LIU TONGYAN, ZU HONGBIN
• Format: Patent
• Language: Chinese; English
• Published: 20.06.2017
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; MINING OR QUARRYING

The invention provides an integrated permanent-magnet variable-frequency coal cutter rocker arm device which is composed of a speed reduction part, a permanent-magnet motor, a rectifying unit, an invert unit, a filter and an electric reactor. An existing coal cutter rocker arm can be replaced direct...