The invention discloses a
lithium ion storage battery hydraulic
excavator for a
coal mine. The
lithium ion storage battery hydraulic
excavator aims at solving the problem that an existing electric hydraulic
excavator is inconvenient to use, maintain, move for a long distance and transfer. Comprising a working device, a rotary driving device, a
chassis walking device, a slewing mechanism, a control mechanism, a
lithium ion power supply, a battery
management unit, a vehicle-mounted
control unit, a switched reluctance speed regulating motor, a hydraulic
system, a cooling
system and an upper frame. The upper frame is fixedly connected with the
chassis walking device through a slewing support of the slewing mechanism, a positioning pin and a bolt; the working device bracket is rotatably connected with the outer ring of the rotary driving device; and the inner ring of the rotary driving device is fixedly connected with the frame deflection bracket of the upper frame. An external cable is not needed, a charging
pile is used for direct charging, and professional electricians are not needed; walking and operation only need to be independently operated by a single person, auxiliary personnel are not needed, use, maintenance, long-distance movement and transition are convenient, and the comprehensive operation cost is low.