A counterweight is a weight which is located in the opposite sector of another with the objective that both reach a Balance . The idea of weight, meanwhile, refers to the force of attraction that the planet exerts land on the bodies
It can be said that a counterweight, therefore, is used to balance forces . Its use is frequent when there is a significant displacement of masses, as in cranes and elevators (elevators ).
In the case of cranes, the counterweight is exerted with concrete blocks (concrete). This allows to compensate the force that the arm makes when lifting load . The elevators, meanwhile, have counterweights that are fixed to the cabin through rollers. The engine is responsible for mobilizing the difference between the load of the lift and the counterweight.
What a counterweight does is achieve the compensation of the expected force that will occur . This ensures stability due to the opposing forces, by action of the gravity , they end up neutralizing themselves.
If we put it in simpler words, we can quickly understand the operation of an elevator and the reason that manufacturers should always indicate the maximum load weight , either in the case of those who transport people or those used for objects. If we place a 10 kilogram box at one end and we intend to lift it, we know that the counterweight should be greater than that value otherwise it would simply cancel out the force that the box exerts down.
The elevators need a counterweight so that the displacement of the load is possible, and the fluidity of the load depends largely on its characteristics. functioning . The design contemplates a series of rails through which it must circulate, which are the same as those in the cabin although they are in the opposite direction.
In the case of electric elevators, the most commonly used today, the counterweight is one of the fundamental elements, and must be combined with a series of electrical, electronic and mechanical parts to ensure that the cabin move in a vertical direction, in either direction. A failure in any of these parts can be fatal, which is why frequent maintenance is necessary. As an interesting fact, the speed of the elevators can range from a fraction of a meter per second to several hundred meters per second, depending on its technology and its applications.
The concept of counterweight can also be used symbolically to name what is conducive to moderation of something that is preponderant or excessive. By example : "The deputies of the Liberal Party said they will be the counterweight of the ruling party in Congress", "The dictators usually dismantle the institutions because they do not want any counterweight", “Independent journalism is the natural counterweight of the abuse of power”.
If we stay with this last example, we can visualize the destructive action of the abuse of power in society, since it blocks all channels of free expression to ensure that victims submit to it without hope; when a arrives movement Free as being independent journalism, it is as if the sun was rising after a long and devastating storm, as it begins to illuminate everything that the great monsters want to keep under a veil of darkness.
Suppose, in one Chamber of Deputies , he 65% of the legislators belong to the ruling party. He 35% Remaining, in this framework, acts as a counterweight: it is responsible for guaranteeing the debate and presenting the objections it deems necessary to prevent all Projects Officials are approved directly.