Device and control system for realizing automatic speed limiting and stopping of traction machine by identifying coupler

The invention belongs to the technical field of automatic control of power transmission line engineering machinery, and particularly relates to a device and a control system for achieving automatic speed limiting and stopping of a traction machine by recognizing a coupler. Comprising a main beam, a first traction wheel, a second traction wheel, a mounting supporting seat, a travel switch and a travel switch contact mechanism, the first traction wheel and the second traction wheel are installed on one side of the main beam through bearings, and the installation support is fixed to the main beam of the traction machine in a welding or bolt connection mode. The travel switch is mounted on one side of the mounting supporting seat; and the travel switch contact mechanism is mounted on the mounting support through a positioning pin. The problem that personnel need to observe and operate to decelerate and shut down when the traction rope is replaced is solved, and the labor intensity of operators is effectively reli