The utility model relates to an oil machinery, in particular to large -scale equipment locating sells puller. This instrument includes frame support, and open frame support's bottom has first through -hole, and open at frame support's top has the screw, and the screw fit in has the screw rod, and the upper end of screw rod is fixed with the nut, still include the shank support, the shank support is located frame support's inboard, the lower extreme of screw rod be connected with the top of shank support through toper thrust bearing, open the position that the bottom of shank support corresponds first through -hole has the second through -hole. The utility model has the advantages of simple structure, easily operation, the efficient and locating pin repeatedly usable that extracts.