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Mechanism (Linear motion mechanism (Levers (Types (Class 2 (The resistance…

- - - - Class 2
        
        The resistance is between the fulcrum and the effort appplied
        
        Effort multiplied
      - Class 3
        
        The effort applied is between the resistance and the fulcrum
        
        Effort reduced
      - Class 1
        
        The fulcrum is between the effort applied and the resistance
        
        Effort reduce or multiplied
- - - - By compression
      - By torsion
      - By traction
- - - - N1·D1=N2·D2-----N1/D1=N2/D2
      - N= Velocities of the first drive wheel(rpm) D=Diametres
    - - Theconnection of one axle is transmited to the other through the connected pulleys
    - - N1·Z1=N2·Z2
      - Z=numbers of theeth
    - - N wheel=N screw·Z grooves/Z wheel
      - N are the velocities of the wheel and of the screw
      - Z grooves is the number of grooves of the screw and Z wheel is the number
        of teeth of the wheel
    - - N1·Z1=N2·Z2----Z1/Z2=N2/Z1
      - N1 AND N2 are the velocities of the corresponding wheels
      - Z1 AND Z2 are the number of teeth
    - - N4/N1=Z1·Z3/Z2·Z4
      - N1 AND N4 are the velocities of the drive wheel and the driven wheel.
      - Z1,Z2,Z3 AND Z4 are the number of teeth on the wheels
    - - N4/N1=D1·D3/D2·D4
      - N1 and N4 are the respective velocities of the drive and driven
        pulleys
      - D1,D2.D3 and D4 are the diameters of each wheel.
    - - Reducing system
        
        velooty is reduced
      - Multiplying system
        
        velooty is increased
      - Constant system
        
        elocity remains constan
- - - - Nut and bolt system
        
        This consists of a bolt or threaded bar and a nut that has the same intenor diameter as the diameter of the bolt.
      - Winch and crank handle
      - Rack and pinion system
        
        L=P·Z·N
        
        L is the velocity of the rack's movement in millimetres per
        minute
        
        Z is the number of teeth in the pinion
        
        P is the distance between two consecutive teeth in millimetres.
        
        Z is the number of teeth in the pinion
    - - Crankshaft
      - Crank-link-slide
      - Cam
      - Eccentric cam
- - - - Dru m brakes
      - Band brakes
      - Disc brakes