Levers in robotics

Very often in robotics and when creating models, one has to use the simplest mechanisms, without which humanity has not been able to do for millennia. Today we will consider the operation of the simplest mechanism: a lever. Probably not every adult knows that levers are of the 1 rd, 2 rd and 3 rd kind.

See online calculator - Lever Force Calculator.

Lever of the first kind. The points of application of forces are located on opposite sides of the fulcrum. The force is applied to the long lever arm.

Lever of the second kind. The points of application of forces are on one side of the fulcrum. The force is applied to the long lever arm.

Lever of the third kind. The points of application of forces are on one side of the fulcrum. The force is applied to the short arm of the lever.

Examples:

Wheelbarrow - the load is the load, and the force is applied by the person to the handles of the wheelbarrow.

Nailer - the load is the nail being pulled out, and the force is applied to the edge of the hammer handle.

Broom - The load is debris and the force is applied to the middle of the broom handle.