Arm lifting machine is folded to mining crawler -type

The utility model belongs to the technical field of mine tunnel lifting device, specifically speaking is an arm lifting machine is folded to mining crawler -type. The utility model discloses an arm lifting machine is folded to mining crawler -type including lower chassis, the automobile body platform, rotation mechanism and control mechanism, still include boom assembly, boom assembly is including the gyration stand, main folding arm, inferior folding arm, main luffing?cylinder, inferior luffing?cylinder, flexible arm and lifting hook, the setting of gyration stand is at automobile body platform middle part, the tail end of main folding arm is articulated with the top of gyration stand, the front end is articulated with time folding arm, but inferior folding arm and flexible arm telescopic?connection, flexible arm front end fixed connection lifting hook, main luffing?cylinder's cylinder body bottom is articulated bottom the gyration stand, and tailpiece of the piston rod portion articulates with main folding