Solar Powered Toggle Jack Mechanism

Toggle jacks are simple mechanism used to drive large loads short distance and to lift heavy loads. It also have the advance feature of rotating the parts about their axis where there is not enough space to move the load. The power screw design of a common toggle jack reduces the amount of force required by the user to drive the mechanism. Most of the toggle jacks are similar in design, consisting of eight main members out of whom four are driven by power screw and rest of four by loading condition. A screw is moving part and the nut is stationary part. Both part always works in meshing condition. Therefore these are stresses like shear and tensile stresses induced in materials which are responsible for failure of screw. Different materials of screw and nut can induce different magnitude of stresses so it is necessary to select a pair of material combination in such a way that a pair gives induced stress within safe limit.