Shore crane rear pull rod mounting system and mounting method

The invention provides a quay crane rear pull rod mounting system and method. The installation system comprises a crane used for suspending a rear pull rod and controlling the rear pull rod to ascend and descend; the jacking mechanism is used for being arranged below a rear girder of the quay crane, a supporting frame and a gusset plate are arranged on the rear girder at intervals, a first through hole is formed in the gusset plate, the first end of the rear pull rod is used for being hinged to the upper end of the supporting frame, a connecting plate is arranged at the second end of the rear pull rod, and a second through hole is formed in the connecting plate; the optical signal transmitter is used for being detachably arranged in the first through hole and is coaxial with the circle center of the first through hole; and the photoelectric sensing assembly is detachably arranged at the center of the second through hole and used for detecting the optical signal transmitted by the optical signal transmitter an