An adjustable strand threading and lubricating device for prefabricated box girders includes an underframe. Multiple first spline shafts are rotatably installed between left and right side walls of the strand threading boxes. The first openings are respectively located above the first spline shafts, first sliding blocks are respectively provided and configured to slide up and down in the first openings, multiple second spline shafts is rotatably installed between two first sliding blocks, and axes of the second spline shafts are parallel to the first spline shafts. The first spline shafts and the second spline shafts are slidably provided with multiple strand threading units for threading steel strands, a lubricating unit is arranged on a front side of the strand threading units, and a bundling unit is arranged on a rear side of the strand threading units.

An adjustable strand threading and lubricating device for prefabricated box girders includes an underframe. Multiple first spline shafts are rotatably installed between left and right side walls of the strand threading boxes. The first openings are respectively located above the first spline shafts, first sliding blocks are respectively provided and configured to slide up and down in the first openings, multiple second spline shafts is rotatably installed between two first sliding blocks, and axes of the second spline shafts are parallel to the first spline shafts. The first spline shafts and the second spline shafts are slidably provided with multiple strand threading units for threading steel strands, a lubricating unit is arranged on a front side of the strand threading units, and a bundling unit is arranged on a rear side of the strand threading units.

Disclosed is a moving device. A moving device for moving a tubular member according to an aspect of the present disclosure may include a housing through which the tubular member passes, a first roller and a second roller arranged to face both sides of the tubular member inside the housing and having outer circumferential surfaces that presses the tubular member, an actuator that provides a driving force for rotating the first roller, a sensor that measures a movement amount of the tubular member, and a controller that controls the actuator on the basis of the movement amount of the tubular member, wherein, when the first roller rotates, the tubular member between the first roller and the second roller moves by a frictional force.

Disclosed is a moving device. A moving device for moving a tubular member according to an aspect of the present disclosure may include a housing through which the tubular member passes, a first roller and a second roller arranged to face both sides of the tubular member inside the housing and having outer circumferential surfaces that presses the tubular member, an actuator that provides a driving force for rotating the first roller, a sensor that measures a movement amount of the tubular member, and a controller that controls the actuator on the basis of the movement amount of the tubular member, wherein, when the first roller rotates, the tubular member between the first roller and the second roller moves by a frictional force.

A cable retractor includes a housing. A motorized drive section within the housing urges at least a segment of cable past the drive section. A circular chamber within the housing, including a circular spindle at a center, holds at least another segment of cable. The at least another segment of cable loops around the spindle. The motorized drive section urges the cable in one direction to draw the at least another segment of the cable from the circular chamber, past the motorized drive section, and through an external opening in the housing to outside the housing. The motorized drive section and urges the cable in an opposing direction to draw the at least another segment through the external opening from outside, past the motorized drive section, into the circular chamber, and around the circular-shaped spindle, then looping around itself in a circular manner.

A cable retractor includes a housing. A motorized drive section within the housing urges at least a segment of cable past the drive section. A circular chamber within the housing, including a circular spindle at a center, holds at least another segment of cable. The at least another segment of cable loops around the spindle. The motorized drive section urges the cable in one direction to draw the at least another segment of the cable from the circular chamber, past the motorized drive section, and through an external opening in the housing to outside the housing. The motorized drive section and urges the cable in an opposing direction to draw the at least another segment through the external opening from outside, past the motorized drive section, into the circular chamber, and around the circular-shaped spindle, then looping around itself in a circular manner.