With the rapid development of intelligent mine construction, the efficiency improvement of intelligent fully mechanized mining and intelligent rapid excavation has higher and higher requirements for equipment transportation supply. Due to the narrow space of underground roadway and poor ventilation conditions, problems such as strong noise, large emission and high fuel consumption caused by the large increase in the application of explosion-proof diesel-driven vehicles have become increasingly serious. How to solve the underground exhaust pollution and noise pollution caused by the explosion-proof diesel engine of the trackless transporter and improve the working environment of the mine operators have become a difficult problem to be solved urgently in underground coal mine transportation.
According to the market demand, CCTEG Xi 'an Research Institute (Group) Co., Ltd, drawing on the mature electric drive chassis technology in the field of construction machinery, with the need to have the fast moving ability of the anchor drill as the entry point, designed and developed the mine explosion-proof pure electric drive articulated rubber wheel chassis, through the battery drive motor as the power, and explosion-proof design, so that it meets the explosion-proof requirements of coal mine. The whole machine is driven by lithium battery, the total power is 60 kw, the comprehensive running mileage is 100km, the rated load is 3.5t, the maximum size is 6500×2000×2500 m, the maximum speed is 20km/h, the minimum turning radius is 6.5m, the climbing Angle is 15°, the vehicle has the function of real-time operation data transmission. It can transmit the vehicle running data and driving video to the control center by wireless network. The battery pack is equipped with the functions of electric quantity monitoring, charging state display, voltage and temperature monitoring, etc. After successful development, the electric drive chassis can be combined with the drilling machine, bolt machine and repair equipment, so that it has the ability to move quickly. At present, the whole chassis has been processed and manufactured.
In the next step, the project team will tackle the key problem of automatic fire extinguishing system. For the vehicle-mounted distribution box and explosion-proof power box, automatic fire detection and fire extinguishing functions will be added, so that the articulated railless rubber wheel chassis in underground coal mine can have automatic fire extinguishing function to realize the maximum degree of safety guarantee.
