In response to the problem of insufficient power for explosion-proof diesel engine trackless auxiliary vehicles using a single power source during long-term operation in coal mines,the development of diesel-diesel dual power,diesel-electric dual power,and electric-electric dual power technologies can solve the problem.The classification and design ideas of three types of dual power systems were introduced,and the key technologies including overall structural design,support operation action design,walking transmission system design,driving power calculation,hydraulic system design,matching analysis of diesel-electric dual power to hydraulic system,and heat dissipation system design of explosion-proof rubber-wheeled single-arm anchor drilling vehicle with diesel-electric dual power were elaborated,and their key parameters were calculated and analyzed.The practical application in Shendong mining area had shown that using a diesel-electric dual power system could save costs by more than 30％under the same operating efficiency,and also improve the service life of the entire vehicle;the equipment ran smoothly and each component moved smoothly during the construction process;a set of anchoring supporting processes could be completed every 8-10 minutes on average,and the operators could monitor the construction within 50 m range with a remote control,and the experiment results met expectations well.
auxiliary operation vehiclesdual power system designdiesel-electric dual powerrubber-wheeled single-arm anchor drilling vehicle
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