Ropeway fluid power system for mine

The invention discloses a hydraulic driving system for a ropeway for mines, which comprises a motor, a closed type pump, a gear pump, the hydraulic driving system, a hydraulic tension system and a hydraulic brake system. The hydraulic driving system for the ropeway for the mines has the following advantages: (1) the hydraulic driving system can realize stepless speed adjustment and positive and reverse rotation of the ropeway, and the ropeway can rotate positively or reversely at a low speed (which can be set freely) to check a steel wire rope; (2) no-load starting of the motor can be realized so as to prolong service life of the motor and electrical elements; (3) acceleration and deceleration properties of starting and stopping can be freely set (the time for starting acceleration and stopping deceleration can be set) so as to improve riding comfort; (4) the hydraulic tension system has the characteristics of compact volume, large tensile force and stepless adjustment, and simultaneously can display the tensile force on line to ensure realization of tension of constant tensile force under the condition of load changing; (5) the system is suitable for severe working environmental (dusty, damp and explosion-proof) conditions, hydraulic oil flow flows between the hydraulic pump and the motor circularly, and a main oil path is not contacted with air directly, so air suction cannot occur and the system is not easy to be polluted; and (6) because a flame-proof device (such as a flame-proof transducer) is not needed to adjust speed, the hydraulic system for adjusting speed is more safe in the underground gas environment due to no explosion danger factor.