Abstract: A roller conveying rack includes two carrier plates with rectangular shapes, wherein the carrier plates are arranged in parallel and aligned, legs are disposed on both sides of a bottom of each carrier plate in a longitudinal direction of the carrier plate, the legs on different carrier plates are connected by sleeve shafts broken in a middle portion, rolling sleeves broken in a middle portion are arranged between upper portions of the carrier plates in the longitudinal direction of the carrier plates, movable shafts are disposed at the broken middle portion of the sleeve shafts and connecting shafts are disposed at the broken middle portion of the rolling sleeves, insertion holes are provided on each sleeve shaft between the legs and threaded holes are provided on each movable shaft between the legs, and each insertion hole is connected to a corresponding threaded hole by a bolt.

Abstract: An all-in-one wafer cleaning machine for monocrystalline silicon production includes: a circulation track disposed at a rear end of a cleaning equipment main body and fixed to the cleaning equipment main body; a horizontal moving device disposed at an outer side of the circulation track; a first motor fixedly installed at one end inside the horizontal moving device; a first transmission gear disposed at an output end of the first motor; a first fixed rod fixedly disposed at the other end of the horizontal moving device; a first fixed gear disposed at one end of the first fixed rod, wherein the first transmission gear and the first fixed gear are engaged with the circulating track; and a vertical track fixedly disposed at the horizontal moving device.