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Table 4 Dimensional parameters of ball screw

From: Design of bionic active–passive hybrid-driven prosthesis based on gait analysis and simulation of compound control method

Parameter

Value

Parameter

Value

Lead

\(P_{h} = 2\,{\text{ mm}}\)

Weight

\(m = 68 {\text{g}}\)

Shaft diameter

\(D = 8 \,{\text{mm}}\)

Stroke

\({\text{ST}} = 40 \,{\text{mm}}\)

Length

\(L_{1} = 75\,{\text{ mm}}\)

Number of Turns

\(1 {\text{Circle}} \times 3 {\text{Row}}\)

 

\(L_{2} = 86 \,{\text{mm}}\)

Basic Static Load Rating

\(C_{oa} = 2.3 {\text{kN}}\)

Full Length

\(L_{3} = 125\,{\text{ mm}}\)

Basic Dynamic Load Rating

\(C_{a} = 1.4 {\text{kN}}\)