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Lifting appliance and lifting system

A spreader and hook technology, which is applied in the field of spreaders and lifting systems, can solve the problems of complex and harsh working environments, the inability to effectively observe the hooking status of the spreader, and equipment damage, and achieve the effect of simple hooking

Active Publication Date: 2020-12-11
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the nuclear fuel reprocessing project, there are many complicated and harsh working environments, especially the radioactive environment, and the staff cannot directly enter the environment to carry out the lifting operation of the equipment
In addition, in some special and complex environments, the spreader needs to go deep inside the equipment for lifting, and observation methods such as cameras and peep windows cannot effectively observe the hooking state of the spreader
If the hook of the spreader is not stable or decoupled during hoisting, it will cause safety accidents such as equipment damage

Method used

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  • Lifting appliance and lifting system
  • Lifting appliance and lifting system
  • Lifting appliance and lifting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment discloses a hanger, including a hook assembly, a mandrel assembly 4, an intermediate block 6 and a housing 7,

[0032] The hook assembly includes a plurality of hooks 1 evenly arranged outside the housing 7 along the circumferential direction, and each hook 1 includes successively extending vertically in the vertical direction (that is, the direction of gravity) from top to bottom. Part 1 (from position B 1 、D 1 to position A 2 ,E 2 part), the second part bent outwards (from position A 2 ,E 2 to position B 2 、D 2 part), and the hook part (position B 2 、D 2 The following part), the second part is provided with a curved slideway 18 conformal to the second part, and the slideway is provided with a roller 3,

[0033] The middle block 6 is fixed on the casing 7 and has a plurality of overhanging structures extending to the outside of the casing 7, the outer end of each of the plurality of overhanging structures passes through the upper end of the fir...

Embodiment 2

[0036] refer to figure 1 , this embodiment provides a hoist, including a hook assembly, a mandrel assembly 4, an intermediate block 6 and a housing 7.

[0037] The hook assembly includes a plurality of hooks 1 uniformly arranged outside the housing 7 along the circumferential direction, and each hook 1 includes successively connected vertical The first part of the extension (from position B 1 、D 1 to position A 2 ,E 2 part), the second part bent outwards (from position A 2 ,E 2 to position B 2 、D 2 part), and the hook part (position B 2 、D 2 The following part), the second part is provided with a curved slideway 18 conformal to the second part, and the slideway 18 is provided with a roller 3. When the number of hooks 1 is two, it may not be possible to stably hook the equipment 21 to be lifted. Therefore, in this embodiment, the number of hooks 1 and rollers 3 may be three, but it is not limited thereto. For example, the number of hooks 1 and rollers 3 can be four ...

Embodiment 3

[0054] This embodiment provides a hoisting system, including a crane (not shown) and a spreader, the spreader adopts the spreader described in Embodiment 1 or 2, and the crane includes a crane hook (not shown), The sling includes a lifting ring 14 which is hooked on the hook of the crane.

[0055] will now refer to Figure 1 to Figure 7 to describe examples of hoisting / hooking, unhooking and releasing conditions of a spreader.

[0056] refer to figure 2 , the hoisting working condition is: the lifting ring 14 is hooked on the crane hook, the mandrel assembly 4 and the cam 9 are located at the upper station of the sling, and at this time, the axial fixing member 12 is in contact with the top cover 13 (see figure 1 A in 1 ), the slider 10 is located at the lower part of the chute on the cam 9 (see Figure 5 A in 3 ), the roller 3 is located on the upper part of the slideway 18 of the hook 1 (the figure 1 A in 2 ), the second keyway 9a and the second key piece 9b of the c...

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Abstract

The invention provides a lifting appliance and a lifting system. The lifting appliance comprises a lifting hook assembly, a mandrel assembly, a middle block and a shell, and the lifting hook assemblycomprises a plurality of lifting hooks uniformly arranged outside the shell along the circumferential direction. Each lifting hook comprises a first part which vertically extends, a second part whichbends and extends towards the outer side and a hooking part which are sequentially connected from top to bottom in the vertical direction, bent slideways which are conformal with the second parts arearranged in the second parts, rollers are arranged in the slideways, and the middle block is fixed to the shell. The middle block is further provided with a plurality of outwards-extending structuresextending to the outer side of the shell, the outer side end of each outwards-extending structure is movably connected with the upper ends of the first parts of one lifting hooks through pin shafts, the mandrel assembly is arranged in the shell and penetrates through the middle block, and the bottom end of the mandrel assembly is connected with the rollers through supporting plates. The bottom endof the mandrel assembly moves up and down in the height range of the slideways to drive the rollers to roll up and down in the slideways. The lifting appliance is simple and convenient to hook.

Description

technical field [0001] The invention relates to a hoisting device and a hoisting system, more particularly, to a hoisting device and a hoisting system for long-distance hoisting of containers and equipment with relatively high radioactivity. Background technique [0002] In the nuclear fuel reprocessing project, there are many complicated and harsh working environments, especially the radioactive environment, and the staff cannot directly enter the environment to carry out equipment lifting operations. In addition, in some special and complex environments, the spreader needs to go deep into the equipment for lifting, and observation methods such as cameras and viewing windows cannot effectively observe the hooking state of the spreader. If the hook of the spreader is not stable or decoupled during lifting, it will cause safety accidents such as equipment damage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/22B66C13/04
CPCB66C1/22B66C13/04Y02E30/30
Inventor 张果吴华杨宏悦徐磊金瑶史继红
Owner CHINA NUCLEAR POWER ENG CO LTD
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