Lifting appliance for stable lifting of port steel pipe stacking and carrying crane

Abstract

The invention relates to a lifting appliance for stable lifting of a port steel pipe stacking and carrying crane. The lifting appliance comprises a base plate and a plurality of gantries; the gantries are composed of a flat frame plate and two vertical frame plates, strip-shaped holes are formed in the plate faces of the vertical frame plates, and a rotating rod, a pressing plate and a base plate are arranged below the flat frame plate; two bearing seats are installed on the upper plate face of the pressing plate, the rotating rod is divided into two sections of unit rod parts, the outer walls of the two sections of unit rod parts are provided with two external threads with opposite rotating directions, rod bodies of the two sections of unit rod parts are sleeved with nut kits, two hinge plates are arranged between the flat frame plate and the rotating rod, and the two ends of the hinge plates are correspondingly hinged to the flat frame plate and the outer walls of the nut kits correspondingly. and at least three crimping parts are uniformly arranged on the pressing plate in the axial direction, each crimping part comprises a hanging rod and an inverted-V-shaped pressing claw, and arc-shaped grooves are formed in positions, corresponding to the inverted-V-shaped pressing claws, of the upper plate face of the base plate. According to the lifting appliance, and it is guaranteed that any number of steel pipes within the lifting upper limit can be compacted and stably lifted while the steel pipes are firmly and tightly gathered and fixed.

Description

technical field [0001] The invention relates to the technical field of hoisting spreaders, in particular to a spreader for stable lifting of a port steel pipe stacking and handling crane. Background technique [0002] In places where freight is concentrated such as ports, there are often steel pipes stacked in bulk that need to be hoisted, such as figure 1 As shown, when hoisting round rods such as steel pipes in a pile, the following two problems will be encountered: the first is the gathering problem caused by the shape, the circle is not easy to fix, and if it is bundled on site, it will seriously affect the lifting Efficiency, and once it is scattered during the lifting process, it will cause serious safety accidents; the second is the shaking and balance problems caused by the uncertain quantity. Usually the lifting quantity is certain, and it is easy to use such as figure 1 The traditional hangers shown are stacked and lifted, but the indeterminate quantity will cause...

AI Technical Summary

Problems solved by technology

[0002] In places where freight is concentrated such as ports, there are often steel pipes stacked in bulk that need to be hoisted, such as figure 1 As shown, when hoisting round rods such as steel pipes in a pile, the following two problems will be encountered: the first is the gathering problem caused by the shape, the circle is not easy to fix, and if it is bundled on site, it will seriously affect the lifting Efficiency, and once it is scattered during the lifting process, it will cause serious safety accidents; the second is the shaking and balance problems caused by the uncertain quantity. Usually the lifting quantity is certain, and it is easy to use such as figure 1 The traditional hangers shown are stacked and lifted, but the indeterminate quantity will cause insufficient adaptability. If it cannot be compacted, it will cause lifting shaking and affect the lifting balance

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