Folding-lifting type movable small-scale portal crane

A gantry crane and mobile technology, applied in the direction of trolley cranes, cranes, hoisting equipment braking devices, etc., can solve the problem of floor space, initial construction cost, plant occupation cost, high maintenance and repair cost, waste of manpower, financial resources, etc. Issues such as increasing the risk of accidents

Active Publication Date: 2014-09-03
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method is to set up multiple lifting equipment in different places, and the frequency of use of the equipment is very low, so the area occupied, the initial construction cost, the cost of plant occupation, and the cost of maintenance and repair are all relatively large.
It wastes manpower and financial resources, and also causes a waste of resources. At the same time, multiple cranes also increase the risk of accidents

Method used

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  • Folding-lifting type movable small-scale portal crane
  • Folding-lifting type movable small-scale portal crane
  • Folding-lifting type movable small-scale portal crane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The crane described in the present invention includes a lifting part, a shaft fixing part and a rotating support part.

[0027] The lifting part can be fixed on the shaft fixing part, the fixed position is adjustable in the vertical direction, and the fixing method is a detachable connection, so as to realize the adjustment of the lifting part in the vertical direction. The lifting part includes a The heavy equipment lifts the object to be lifted; the fixed shaft part is connected with the rotating support part, and the rotating support part can rotate in the horizontal plane with the fixed shaft part as an axis.

[0028] When the lifting part is working, it is raised and fixed along the fixed part of the shaft to complete the lifting work at a suitable height. When it is not working, it is lowered to the bottom along the fixed part of the shaft to save space; the rotating support part When working, it can be unscrewed in the horizontal plane to provide good support for...

Embodiment 2

[0030] see figure 1 As shown, it is a schematic structural diagram of the working state of Embodiment 2 of a foldable and lifting mobile small-sized gantry crane of the present invention. In this embodiment, it includes a shaft fixing part 2, a lifting part 1 and a rotating support Part 3, the fixed part 2 includes two sets of lifting legs 21, each group includes two lifting legs 21, the lifting legs 21 are vertically arranged; the lower end is connected with the rotating support part 3, the The rotating support part 3 can rotate around the lifting leg 21 in the horizontal plane to realize the opening and retracting of the rotating supporting part 3; the lifting part 1 is flexibly connected with the fixed shaft part 2 and can be fixed along the fixed Part 2 Ascend and Descend.

[0031] In this embodiment, the number of lifting legs 21 is two groups, four in total. In practical applications, the number of groups of lifting legs 21 and the number of each group can be adjusted a...

Embodiment 3

[0043] Embodiment 3 is similar to Embodiment 2, except that the lifting equipment in Embodiment 2 is an electric hoist, which can provide a more accurate lifting height and save manpower.

[0044]In Embodiment 3, there are three groups of side support parts, correspondingly, there are three groups of lifting legs, and the number of optional support parts is six, so that the beam is divided into two relatively independent spaces, which can Two sets of lifting devices are provided, which are electric hoists in this embodiment, which improves the flexibility of use of the equipment.

[0045] Electric hoists can also be replaced with lifting equipment such as air hoists.

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PUM

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Abstract

The invention provides a folding-lifting type movable small-scale portal crane. The portal crane is characterized by comprising a lifting part, a shaft fixing part and rotary support parts, wherein the lifting part can be fixed on a fixed position on the shaft fixing part in a detachable connection manner, and the fixed position can be adjusted in the vertical direction; the shaft fixing part is fixedly connected with the rotary support parts, and the rotary support parts can rotate in the horizontal plane by taking the shaft fixing part as the axis; the lifting part comprises chain blocks, a cross beam and multiple groups of side support parts; the shaft fixing part comprises multiple groups of lifting support legs, and each group comprises multiple support legs; the rotary support parts comprise bodies and wheels. The folding-lifting type movable small-scale portal crane has the beneficial effect of being capable of being unfolded in the working process, so that the stability of the crane is guaranteed; the portal crane is folded and packed up in the daily storage process, so that the occupied area and volume of the crane are reduced; multiple working states of the portal crane can be adapted to different space sizes and channel sizes; as the crane is provided with the wheels, the crane can conveniently move in the small-range movement process.

Description

technical field [0001] The invention relates to a crane, in particular to a foldable and liftable mobile small gantry crane. Background technique [0002] In workshops with tight space, compact equipment, and narrow passages, on-site lifting is often required during equipment maintenance. Many sites do not have lifting conditions and cannot use traditional large-scale large-volume fixed cranes. For example, in a nuclear power plant, in order to save space in the plant, the layout of equipment and various pipelines is very compact, the flow of people and logistics channels are narrow, the storage space for special tools and equipment for maintenance is small, and the space for lifting equipment in some maintenance stations is very small. Small. The traditional method is to set up multiple lifting equipment in different places, and the frequency of use of the equipment is very low, so the area occupied, the initial construction cost, the cost of plant occupation, and the cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C19/02B66C5/02
Inventor 邢建升孟雷艾长军刘金宏甘谛徐书茂
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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