- Please Give Complete Working 1 (9.63 KiB) Viewed 26 times
PLEASE GIVE COMPLETE WORKING
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answerhappygod
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PLEASE GIVE COMPLETE WORKING
PLEASE GIVE COMPLETE WORKING
A given double-thread power screw is 50 mm in major diameter with a pitch of 4 mm. A vertical load on the screw reaches a maximum of 10 kN. The coefficients of friction are 0.07 for the collar and 0.06 for the threads. The frictional diameter of the collar is 60 mm. (2) Find the pitch diameter and the lead, (b) Calculate the torque to raise" and "lower" the loads, and (©) Determine the overall efficiency in raising the load.
A given double-thread power screw is 50 mm in major diameter with a pitch of 4 mm. A vertical load on the screw reaches a maximum of 10 kN. The coefficients of friction are 0.07 for the collar and 0.06 for the threads. The frictional diameter of the collar is 60 mm. (2) Find the pitch diameter and the lead, (b) Calculate the torque to raise" and "lower" the loads, and (©) Determine the overall efficiency in raising the load.