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THREE-LINK SCREW-TYPE MECHANISM WITH A SLIDING PAIR

Link 1 is connected by screw pair A to the fixed link and by screw pair B to link 2 which, in turn, is connected by sliding pair C to the fixed link. When link 1 is turned through the angle ϕ₁, the displacement of link 2 along axis x-x is s₂=(h_A-h_B)ϕ₁/(2π) where h_A and h_B are the pitches of the threads in screw pairs A and B. These pitches are taken with a plus sign for right-hand thread and w…