The coal was hailed as the black gold, food industry, it is one of the main energy of the human world in the 18th century. Mine system, the elevator is one of the indispensable equipment, to protect the mine to enhance the safe operation of the machine is a top priority of mine production.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.
As a multi-purpose cage hoisting container, the cage not only can hoist personnel, various types of mechanical and electrical equipment for use underground, but also can transfer materials and minerals in mine shaft hoisting system. When lifting personnel in particular must ensure the personal safety, so the safety cage must be installed for lifting cage’s entrances and exits, the request is safe, reliable and easy to use. Although the cage of the structure has experienced several improvements, the cage’s design concept is keeping emphasizing the safety, and its comfort and user-friendly are ignored. A type of new automatic cage door based on endless rope is designed in order to protect the safety and comfort, increase the degree of automation and reduce manual labor intensity.
The device of the structure of automatic cage door based on endless rope is based on PLC for the overall program’s control of the core with external motive force switch and endless rope exercise closed loop passing, which achieves to safe blocking in the lifting process of cage door.
Keywords： endless rope ; cage door ; PLC.
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