Supporting leg transverse moving structure of single-line bridge erecting machine

The utility model discloses a single-line bridge girder erection machine supporting leg transverse moving structure which comprises adjusting beams and a transverse moving device, first positioning points are arranged at the two ends of each adjusting beam, the adjusting beams are fixed to supporting legs on the two sides of a bridge girder erection machine through the first positioning points respectively, and the transverse moving device is composed of a transverse moving supporting bottom beam, a transverse moving beam and a transverse moving oil cylinder. The adjusting beam is further provided with a plurality of second positioning points, and the adjusting beam is detachably installed on the transverse moving beam through the second positioning points. The adjusting beam is arranged on the supporting leg of the bridge girder erection machine, meanwhile, the transverse moving device is arranged, the bridge girder erection machine can be centered again through the transverse moving device, the problem that