Long cable traction automatic pressure balancing supporting frame

The utility model relates to the technical field of suspension bridge construction, in particular to a long cable traction automatic pressure balancing supporting frame, aiming at traction construction of galvanized steel wire ropes and main cable strands. The long cable traction automatic pressure balancing supporting frame at least comprises a support steel section, spring assemblies, a pin roll and a nylon carrier roller. The long cable traction automatic pressure balancing supporting frame is characterized in that the support steel section is an L-shaped frame which is welded by using Q235 steel materials, two vertical steel materials are welded on the short side of one end of the bottom surface of a rectangular steel material, and two diagonal bracings are led to the middle parts of the two vertical steel materials from the short side of the other end of the bottom surface of the rectangular steel material; the nylon carrier roller is fixedly arranged between the two vertical steel materials of the suppo