A jack shown in figure 1, uses a single square-thread screw to raise a known load. The major diameter and pitch of the screw and the thrust collar mean diameter were known. (a) Determine the thread depth [3 Marks) (b) Determine helix angle. [4 Marks] (c) Estimate the torque required to raise the load. [6 Marks] (d) Estimate the torque required to lower the load. [6 Marks] (e) Estimate the efficiency of the jack for raising the load [6 Marks)

Question-Answer › Category: Machine Design › A jack shown in figure 1, uses a single square-thread screw to raise a known load. The major diameter and pitch of the screw and the thrust collar mean diameter were known. (a) Determine the thread depth [3 Marks) (b) Determine helix angle. [4 Marks] (c) Estimate the torque required to raise the load. [6 Marks] (d) Estimate the torque required to lower the load. [6 Marks] (e) Estimate the efficiency of the jack for raising the load [6 Marks)

A jack shown in figure 1, uses a single square-thread screw to raise a known load. The major diameter and pitch of the screw and the thrust collar mean diameter were known. (a) Determine the thread depth [3 Marks) (b) Determine helix angle. [4 Marks] (c) Estimate the torque required to raise the load. [6 Marks] (d) Estimate the torque required to lower the load. [6 Marks] (e) Estimate the efficiency of the jack for raising the load [6 Marks)