Balance principle of tower crane        

The balance of tower cranes is very important. If it tilts or collapses, it will be an unexpected disaster. In the manufacture and working process of tower crane, how to maintain balance has become the problem of tower crane design, manufacture and even safety production.

As you know from basic mechanics, the lever consists of three parts -- the power arm, the resistance arm and the supporting point. The length of the power arm is multiplied by the force applied on it, equal to the length of the resistance arm multiplied by the resistance, which is equal to the torque at both ends, and the balance of the lever can be maintained. Although the structure of the tower crane is very complex, but as a whole, it can be seen as a lever. Balance weight and objects are brought to the crane force, is two in the force on the lever.

Different from the lever, the balance weight of tower crane in different lifting tasks, cranes, heavy weight and balance of the three public focus, still does not go beyond the base platform (or supported by wheels on rails) range, because the line of gravity of the object must in support of the support plane. Therefore, the use of tower crane in the construction site or other installed on the platform crane, total weight from the supporting mechanism for adjusting the balance of the distance, so that the torque balance, so as to lift the lift heavy objects, not tipping. It is worth mentioning that, if you do not meet this condition, for example, brought heavy overweight or balance weight is not heavy enough, so the center of gravity platform after the crane load out, it will be in danger that tower crane dumping.

But generally speaking, in the upper part of tower crane has two fixed pulley and a movable pulley (pulley) with an electric winch to drop cable, end up weight, the other end is in according to the weight of the force of gravity, balance weight distance, so both ends together, the building materials mentioned above.

Through the introduction of the working principle of tower crane, I believe that we have a profound understanding of the balance of tower cranes, we should also pay more attention to the safety of tower crane production.