Tower crane and balance arm thereof

Abstract

The invention provides a tower crane and a balance arm thereof. The balance arm comprises an arm frame of the balance arm and a balancing weight, wherein a first end of the arm frame of the balance arm is connected with a rotating tower body of the tower crane; the balancing weight is placed at a second end of the arm frame of the balance arm and comprises multiple balance weight bodies; and one part of the multiple balance weight bodies are sequentially arranged in a manner of being far away the arm frame of the balance arm from the outside of the second end of the arm frame of the balance arm along the extension direction of the arm frame of the balance arm so as to form a middle-position balancing weight, and the rest part of the balance weight bodies are arranged at the side faces of the middle-position balancing weight so as to form side position balancing weights. According to the tower crane and the balance arm thereof provided by the invention, the barycenter of the balancing weight is farther away the rotation center of the rotating tower body on the premise of meeting the normal trimming moment of the tower crane; and under the circumstance of the same balance weight effect is achieved, the weight of the balancing weight is effectively reduced, and the lightweight design effect is achieved.

Description

technical field [0001] The invention relates to the field of hoisting machinery, and more specifically, to a balance arm of a tower crane and the tower crane. Background technique [0002] Such as figure 1 with figure 2 As shown, in the prior art, the balance arm of the tower crane includes a balance arm frame 10 and a balance weight 30, the first end of the balance arm frame 10 is connected with the slewing tower body of the tower crane, and the balance weight 30 is arranged on the balance The second end of the jib frame 10 also includes a plurality of counterweights labeled 31 to 36 in sequence, and the balance jib frame 10 is connected to the top of the slewing tower body of the tower crane through a tie rod 20 . Wherein, a plurality of counterweight bodies 31 to 36 are sequentially arranged at the second end of the balance arm arm frame 10 along the extension direction of the balance arm arm frame 10 , that is, each counterweight body 31 to 36 of the balance weight 30...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a balance arm of a tower crane and a tower crane, aiming at solving the problem of the balance effect of the balance weight caused by the parallel arrangement of multiple counterweight bodies of the balance weight in the prior art. Good, the technical problem that the total weight of the balance weight is too heavy

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