Roundness adjusting device for large-diameter steel pipe

Abstract

The utility model discloses a large-diameter steel pipe roundness adjusting device, and relates to the field of municipal pipeline engineering. Comprising a rear supporting base; a first steel stand column is connected to the upper portion of the rear supporting base. The first steel stand column is connected with a motor. The motor output end is connected with a rotating rod; the rotating rod is located on the center line of the large-diameter steel pipe. The connecting rod is located on the diameter line of the large-diameter steel pipe. The tail end of a piston rod of the first hydraulic cylinder is connected with a first arc-shaped block; and the tail end of a piston rod of the second hydraulic cylinder is connected with a second arc-shaped block. The first steel stand column is telescopically adjusted according to the pipe diameter of the large-diameter steel pipe, so that the rotating rod is located on the center line of the large-diameter steel pipe, and the first hydraulic cylinder and the second hydraulic cylinder are started to enable the piston rod to extend; and the motor is started to drive the rotating rod to rotate, so that the first arc-shaped block and the second arc-shaped block rotate, and the large-diameter steel pipe is rounded.

Images