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Tower crane, pull rod structure for balance arm thereof and mounting method for structure

A technology of tower crane and tie rod structure, which is applied in the direction of cranes, etc., can solve the problems of poor force on the tie rod structure, inconvenient installation and transportation, etc., and achieve the effects of eliminating bending moment, convenient installation and easy disassembly

Active Publication Date: 2012-02-01
ZOOMLION HEAVY IND CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to provide a balance arm tie rod of a tower crane to solve the problems of poor structural stress and inconvenient installation and transportation of the existing tie rods.

Method used

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  • Tower crane, pull rod structure for balance arm thereof and mounting method for structure
  • Tower crane, pull rod structure for balance arm thereof and mounting method for structure
  • Tower crane, pull rod structure for balance arm thereof and mounting method for structure

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0038] like Figure 2a As shown, the balance arm tie rod structure of the tower crane according to the first embodiment of the present invention includes: two tie rods 6 intersecting at a certain angle, an adapter 17 and a first connecting member 10 .

[0039] Two tie rods 6 form the two long sides of the triangle, and the two tie rods 6 are usually of the same length and have the same structure, so as to achieve the same force, and the resultant force formed is on the angle bisecting line of the angle formed by the two tie rods 6. Pull bar 6 is close to one end of the balance arm of crane, i.e. the first end of pull bar 6 ( Figure 2aThe left end in the center) has the structure that is conn...

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Abstract

The invention provides a tower crane, a pull rod structure for a balance arm thereof and a mounting method for the structure. The pull rod structure for the balance arm comprises two pull rods which are crossed to form a certain angle, and an adaptor, wherein each pull rod is provided with a first end connected with the balance arm of the crane, and a second end connected with the tower top of the crane; the distance of the first ends of the two pull rods is greater than that of the second ends of the two pull rods; the adaptor is arranged on the second ends of the pull rods; the second ends of the pull rods are connected to two first connecting pieces arranged on the adaptor at intervals; and each first connecting piece is respectively provided with a first end connected with the adaptorand a second end connected with the tower top of the crane through a first pin roll. In the mounting method, the pull rod structure for the balance arm is adopted. The pull rod structure for the balance arm is stressed stably and reasonably, and is safe and quick to mount.

Description

technical field [0001] The invention relates to the field of hoisting machinery, more specifically, to a tower crane, a balance arm pull rod structure thereof and an installation method for the structure. Background technique [0002] At present, in super-large tower cranes, the balance arm tie rods can be divided into two types: parallel double tie rods and triangular double tie rods. Parallel double tie rods, that is, the balance arm and the top of the tower (that is, the brace) are connected by two parallel round steel rods. The structure seems simple, but the structure is not good, because when the two rods are under different forces, the overall stability of the rods Not good, easy to break. [0003] Compared with the former, the triangular double tie rod has much better overall stability of the tie rod. like figure 1 As shown, this structure consists of two pull rods 6 intersecting at a certain angle to form two long sides of a triangle, one end of the two pull rods...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/72
CPCB66C23/26B66C23/821
Inventor 冯军付英雄刘帝芳
Owner ZOOMLION HEAVY IND CO LTD
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