I need help engineering questions

timer Asked: Jan 27th, 2015

Question description

Convert the load to 3000 Ibs

Convert the other with inch.


I would u like to calculate all these parts in the scissor jack, the load will be 3000 Ibs, calculate all bellow

1-p - Pitch of screw thread (mm)

2-l - Lead of screw thread (mm)

3-d - Nominal diameter of screw (mm)

4-dc - Core diameter of screw (mm)

5-dm - Mean diameter of screw

6-α - Helix angle of screw (degree)

7-W - Load (kg)

8-N - Normal reaction

9-μ - Coefficient of friction

10-P - Effort (N)

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