Abstract:

Abstract: This paper is Lee Coal 569 m shaft auxiliary shaft hoist DC motor drag electronic control system for the research object, the elevator is running too fast conversion layer, instability and other issues, combined with the actual situation and operating personnel and technical levels, and put on a hoist heavy devolution and decentralization of light load on the lift for different conditions such as velocity-depth analysis. Propose practical solutions to improve and modify the PLC program through the host computer methods for investigation and treatment, proven that this method completely solves the auxiliary shaft hoist mine too fast conversion layer problems, and achieved satisfactory results for speed control .

Key words: Keywords：Mine hoist, PLC, DC control system, Digital DC speed regulation