Improving operation of a drawing mill

The report considers the purpose of drawing mills and possible violations of the technological process associated with the design flaws of drawing mill drive. We analyzed the design of a planetary gearbox with a common carrier used in the drive of the stretching drum of a drawing mill. During the operation of such a transmission, there are disadvantages: due to the imbalance of links of the mechanism relative to the central axis, additional dynamic forces arise. This design transmits movement from the leading link to the carrier only through one satellite, the teeth of which perceive all the force transmitted by the torque, which reduces the reliability of the gearbox and the drive as a whole. The design of a three-satellite balanced self-aligning planetary gearbox, free from these disadvantages, is described.