Aiming at the disadvantages of cage door's principle and structure used in mine at present, a type of automatic cage door based on endless rope is designed. The equipment is controlled by PLC with mechanism of external motive force switch and traction by endless rope, which achieves safe blocking in the hoisting process of cage door. The system has simple structure, flexible and reliable operation and high degree of automation. In addition, the equipment is also safe, shapely and comfortable with a wide range of practical.
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