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Mechanisms - Coggle Diagram

- - - - Oldham joints.
      - Cardan joints.
- - - - F = R
      - Wheel that has a groove around it into whch a rope. It rotates around an axle that is fixed to an immobile surface.
    - - F = R/2
      - Set of two pulleys, one is fixed while the other can move in a linear direction
    - - F · d = R · r
      - Type of levers
        
        Class 2: R is between the fulcrum and F
        
        Class 3: F is between the fulcrum and R
        
        Class 1: The fulcrum is between F and R
    - - This is a system of fixed and moveable pulleys, often called block and tackle.
  - - - Nwheel = Nscrew · Zgrooves / Zwheel
        
        Nwheel and Nscrew are the velocities of the wheels and the screws
        
        Zgroove is the number of grooves of the screw and Zwheel is the number of teeth of the wheel
      - This is a screw that moves a helical cogwheel that is set perpendicular to the screw.
    - - N1 · Z1 = N2 · Z2 -> Z1/Z2 = N2/N1
        
        Z1 and Z2 are the numbers of teeth
        
        N1 and N2 are the velocities of the wheels
      - These are two cogwheels with parallel axles that are a certain distance apart, they rotate simultaneously by means of a metal chain or a toothed belt stretched over both wheels.
    - - This is a system of more than two gears, connected together
      - N4/N1 = Z1·Z3/Z2·Z4
        
        N4 and N1 are the velocities of the drive wheel and the driven wheel.
        
        Z1 Z2 Z3 and Z4 are the number of teeth on the wheels.
    - - N1 · Z1 = N2 · Z2 -> Z1/Z2 = N2/N1
        
        N1 and N2 are the velocities of the wheels
        
        Z1 and Z2 are the numbers of teeth
      - The cogs fit into the spaces between the cogs of another wheel, so that.
    - - They consist of two pulleys or wheels that are a certain distance apart.
    - - It's a system of pulleys, or wheels, with a belt
        formed by more than two 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.
    - - N1 · D1 = N2 · D2 -> D1/D2 = N2/N1
        
        N1 and N2 are the velocities of the wheels
        
        D1 and D2 are the diametres
      - Friction drives are made up of two or more wheels that are in contact. The pulleys, and the axles, rotate in the same direction
- - - - This uses a pinion mounted on a rack
      - L = P · Z · N
        
        L is the velocity of the rack's movement
        
        P is the distance between two consecutive teeth
        
        Z is the number of teeth on the pinion
        
        N is the number of rpm of the pinion
    - - This consists of a bolt or threaded bar and a nut that has the same interior diameter as the diameter of the bolt.
    - - Consists of a drum that rotates and a crank handle that allows to pull or lift objects.
      - F · d = R · r -> F = R · R · r / d
        
        F is the force applied and R, the resistance.
        
        r is the radius of the winch and d, the length of the crank handle.
  - - - This is a set of connecting rods attached to a jointed axle. Each of the joints of the axle acts as a crank.
    - - This is basically a rotaung object that pushes a follower as it moves.
    - - This is composed of a crank and a rod called a connecting rod or link.
    - - This consists of a wheel with an off-centre rotation axle that doesn't coincide with the centre of its circumference