The invention discloses an automatic unhooking
dynamic compaction machine with a rammer falling distance adjusting function and a working method of the automatic unhooking
dynamic compaction machine. The automatic unhooking
dynamic compaction machine comprises a machine body, an arm frame, a first cable mechanism, a second cable mechanism, a locking control mechanism and a rammer. The first cable mechanism comprises a first
winch set, a first cable and a first fixed
pulley mechanism, one end of the first cable is wound on the first
winch, and the other end of the first cable is connected with the top end of the locking control mechanism; the second cable mechanism comprises a second
winch unit and a second cable, one end of the second cable is wound on the second winch unit, and the other end of the second cable penetrates through the locking control mechanism and hoists the rammer; the locking control mechanism comprises a control box body, a second fixed
pulley mechanism, a first hydraulic oil cylinder and a second hydraulic oil cylinder. The device has the advantages that the tamper falling distance is adjusted through the two sets of cable mechanisms, and large-range coarse adjustment and fine adjustment can be achieved; the first hydraulic oil cylinder and the second hydraulic oil cylinder which abut against each other oppositely can clamp and lock the second cable temporarily.