Convert the load to 3000 Ibs
Convert the other with inch.
Questions.
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)
11-θ – Friction angle (degree)
12-T – Torque (N.m)
13-η – Efficiency (%)
14-Fc – Direct compressive stress (N/mm2)
15-Ft – Torsional shear stress (N/mm2)
16-Fs – Principal shear stress (N/mm2)
17-Ts – Transverse shear stress (N/mm2)
18-t – Thread thickness at the core diameter (mm)
19-n – Number of threads in engagement with the nut.
20-Tn – Transverse shear stress at the root of the nut (N/mm²)
21-Pb – Unit bearing pressure (N/mm²)
22-k – Least radius of gyration of the cross-section about its axis (mm)
23-I – Least moment of inertia of the cross-section (mm4)
24-A – Area of the cross-section (mm2)
25-Pcr – critical load (N).
26-E – Modulus of elasticity (N/mm²)
27-Syt – Yield strength of the material (N/mm2)
28-M – Maximum bending moment at the critical section
29-WT – Tangential load acting at the tooth (N)
30-h – Length of the tooth (mm)
31-y – Half of the thickness of the tooth (t) at critical section (mm)
32-b – Width of gear face (mm)
33-Fw – Permissible working stress
34-y – Lewis form factor
35-Fo – allowable static stress (N/mm2)
36-Cv – velocity factor.
37-v – Pitch line velocity (m/s.)
38-WD – Total dynamic load (N)
39-WT – Steady transmitted load (N),
40-WI – Incremental load due to dynamic action (N)
41-C – A deformation or dynamic factor (N/mm)
42-K – A factor depending upon the form of the teeth of a gear
43-EP – Young‟s modulus for the material of the pinion in N/mm2EG – Young‟s modulus for the material of the gear in N/mm2
44-e – Tooth error action in mm
45-WS – Static tooth load (N)
46-Wd – Dynamic tooth load
47-Ww – Maximum or limiting load for wear (N)
48-Dp – Pitch circle diameter of the pinion in mm
49-Q – Ratio factor
50-K – Load stress factor (N/mm2)
51- Surface endurance limit (N/mm²)
52- Pressure angle
53-N1 – Motor speed (RPM)
54-N2 – Output speed (RPM)
55-D2 – Diameter of the roller gear wheel (mm)
56-D1 – Diameter of the motor gear wheel (mm)
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