Lightweight attachment joint convenient to assemble and lift

A lightweight, chord technology, applied in the direction of cranes, pivot connections, etc., can solve problems such as lifting, installation in place, heavy weight, etc., to achieve the effect of easy and fast assembly and safe lifting, light weight, and reduced welding

Pending Publication Date: 2021-08-10
HUADIAN ZHENGZHOU MECHANICAL DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the tower body structure 1 of the attached self-elevating tower crane, the tower body weight is greatly reduced, and the consumables and costs are also greatly reduced. Any point in the whole section of the reinforced attachment joint (DYJ) can be selected as the attachment point , and cooperate with the external attachment connectors to connect with the building, but due to the heavy weight of the full-section reinforced attachment joint (DYJ), it is still difficult to lift, install and position the full-section reinforced attachment joint.

Method used

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  • Lightweight attachment joint convenient to assemble and lift
  • Lightweight attachment joint convenient to assemble and lift
  • Lightweight attachment joint convenient to assemble and lift

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 6 ~ Figure 9 As shown, a light-weight attachment joint that is easy to assemble and lift in Embodiment 1 is composed of four identical vertical chords 1, an upper, middle and lower three-layer cross-web rod group 2 hingedly connected to the vertical chords, arranged on each The cuboid frame (as the stiffness skeleton of the attachment joint) composed of eight sets of façade web bar groups 3 between two adjacent vertical chords and each adjacent two-layer transverse web bar group, in the upper half of the cavity of the cuboid frame There are several layers of horizontally reinforced web members 4 in the way of hinged connection (this can improve the flexural modulus of the vertical chords and attachment joints, and meet the load requirements of the adhesion on the tower body structure), in the upper half of the four vertical chords The inner sides are all provided with vertical stiffeners 5 (this can increase the shear area of ​​the vertical chords and at...

Embodiment 2

[0037] Such as Figure 10 , Figure 11 As shown, the difference between embodiment two and embodiment one is that in embodiment two, several layers of horizontal reinforcing web bar groups 4 are arranged in a hinged connection mode in the lower half of the cuboid frame (which can improve The flexural modulus of the vertical chords and attachment joints meets the load requirements of the adhesion on the tower body structure), and vertical stiffeners 5 are arranged on the inner sides of the lower half of the four vertical chords (this can improve the vertical chord The shear area of ​​the rod and the attachment joint meets the load requirements of the adhesion on the tower body structure); the horizontal reinforced web rod group 4 is composed of four horizontal diagonal braces 4-1 through the proximal connecting plate 4-2 and hinged Bolt 6 connects each near-end hingedly together, through the far-end connecting plate 4-3 and hinged bolt 6, each far-end is respectively hingedly ...

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Abstract

The invention discloses a lightweight attachment joint convenient to assemble and lift, and belongs to the technical field of hoisting machinery. The attachment joint is a cuboid frame composed of four identical vertical chord members, an upper layer of transverse web member set, a middle layer of transverse web member set, a lower layer of transverse web member set and vertical web member sets, wherein the upper layer of transverse web member set, the middle layer of transverse web member set and the lower layer of transverse web member set are hinged to the vertical chord members, and the vertical web member sets are arranged between every two adjacent vertical chord members and between every two adjacent layers of transverse web member sets. A plurality of layers of horizontal reinforcing web member sets are arranged in an inner cavity of the upper half section or the lower half section of the cuboid frame in a hinged mode, and vertical reinforcing rib plates are arranged on the inner side faces of the upper half sections or the lower half sections of the four vertical chord members. Each horizontal reinforcing web member set is a cross-shaped horizontal supporting frame formed in the mode that the near ends of four horizontal inclined supporting rods are hinged together through near-end connecting plates and hinged bolts, and the far ends of the horizontal inclined supporting rods are hinged to the upper half sections or the lower half sections of the corresponding vertical chord members through far-end connecting plates and hinged bolts. The lightweight attachment joint is low in weight, low in material consumption, low in cost, large in attachment point rigidity, capable of effectively reducing welding and convenient to assemble rapidly and lift safely.

Description

technical field [0001] The invention belongs to the technical field of hoisting machinery, and more specifically relates to a lightweight attachment section that is easy to assemble and lift, and is especially suitable for combining with a unit section without an attachment tower body to form a light-weight, less-welding, Attached tower body for easy splicing. Background technique [0002] Tower cranes are more and more widely used in electric power, metallurgy, petrochemical, construction and other industries, especially self-elevating tower cranes are more common. The tower body of the self-elevating tower crane works by standing vertically on the ground. The tower body can be divided into attached tower body (the tower body is connected with nearby buildings), self-supporting tower body or non-attached tower body according to different types and uses. There are two types of attached tower body (the tower body is not connected to nearby buildings). Due to the increased l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/62B66C23/20F16C11/04
CPCB66C23/208B66C23/62F16C11/04
Inventor 郭志康李伟李太周安外尔·克热木赵小伟
Owner HUADIAN ZHENGZHOU MECHANICAL DESIGN INST
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