15-05-2017, 11:10 AM
Lever connector as material handling device "is the modification of the simple" lever lever "this project consists of the combination of two main mechanisms which are trolley mechanism and screw power mechanism.Power screw is composed of squire wires ,, So the power screw is self-locking. The power screws are used to convert the rotary motion into translatory motion, for example, in case of a lathe machine screw, rotary motion available, but the tool has to Be advanced distance in the direction of cutting against the shear resistance Of a material In the case of force screw applied in the horizontal plane is used to raise or lower the large load. The power is also used in the jack lever, screw Screw, vice, material testing machine, etc. In a lever jack has an axial movement Against the resistive axial force while e L screw rotates in a stationary bearing In a threaded jack, a screw rotates and moves axially against the force of resistance while the nut is stopped.