Lifting hooks for plate type catalyst unit block

Abstract

The invention provides lifting hooks for a plate type catalyst unit block, belonging to the mechanical field and relating to a lifting tool. The aim of the invention is that hook tongues are inserted in spaces among catalyst plates arranged in a unit frame and are used for clamping the folding edges at the end part of the unit frame for lifting. A lifting beam is fixedly arranged on a lifting frame; the lifting hooks are connected onto the lifting frame by shafts; the outer sides of the lifting hooks are provided with lifting hook body protection grooves fixedly arranged on the lifting frame; the bottom ends of the lifting hooks are provided with the hook tongues; a rope wheel is connected on a protection frame by a shaft; the protection frame is fixedly arranged on the lifting beam; the lifting hooks are provided with lock sleeve clamping grooves; a return spring is hung on a hook seat on the lifting hooks by hangers; and the lifting hooks and the lifting hook body protection grooves are sleeved with hook tongue locking sleeves. According to the lifting hooks for the plate type catalyst unit block provided by the invention, the lifting process is stable, firm and safe; as a reserved space is omitted, the detention vortex of smoke in the reserved space is reduced, and the blockage caused by dust accumulation is avoided; the lifting hooks for the plate type catalyst unit block also can be applied to lifting of special articles with limited overall sizes; in the past, when being lifted in a workshop, barrel-shaped articles with smooth outlines are frequently bound by ropes for horizontal lifting or oblique lifting, so that the traditional operation is time-consuming and unsafe; however, the lifting hooks of such a structure are safe and fast to apply.

Description

technical field [0001] The invention belongs to the field of machinery and relates to a hoisting tool. Background technique [0002] The "unit block" is a cuboid with a width of 455mmX455mm and a length of 590-850mm. The outer wall of the cuboid is 1 mm cold-rolled steel plate, and dozens of catalyst plates with a spacing of 6-7 mm are arranged inside, and the weight is about 50-70 kg. The four-wall steel plates at the two ends of the cuboid respectively fold inwards a 90°, 10mm-wide flange, which is to enclose the catalyst plate, and when the unit block is erected, the hook can clamp the flange and lift the unit block away. Because more than a dozen unit blocks are stacked and assembled in a large iron frame, they become a "module". During the process of hoisting and placing in the module, the unit frames are closely attached without gaps. It is required that the hooks and accessories cannot exceed the external dimensions of the unit body and should be lifted and dropped ...

AI Technical Summary

Problems solved by technology

[0004] There are two disadvantages in this type of hook: ① In order to enter the knuckle of the unit frame, an extra space of 450X450X7mm should be left at the end of the unit frame, so that each unit block consumes an extra circle of steel plates

②When the hook tongue falls, it is easy to damage the catalyst plate

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