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Double gantry crane lifting device

A technology of two-door crane and door crane, which is applied to cranes and other directions, can solve problems such as operation deviation, and achieve the effect of stable objects, consistent force, and simple structure

Inactive Publication Date: 2013-01-23
SHANGHAI INTERNATIONAL PORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a lifting device for double door cranes, which can coordinate the operation of two door cranes and avoid the problem of operation deviation caused by manual command

Method used

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be described in further detail below according to the accompanying drawings.

[0033] like figure 1 As shown, the present invention is a lifting device for double door cranes, which includes two opposite door cranes, and the two door cranes walk along the same horizontal track. For clarity, figure 2 The structure of one of the door machines is shown, and the structure of the other door machine is exactly the same.

[0034] In one embodiment, the model of the door crane is MQ4033, the corresponding door crane has a maximum lifting capacity of 40t, a corresponding range of ≦24m, a maximum swing range of 33m, and a corresponding lifting capacity of≦29t. The above parameters are just examples, and the present invention is not limited thereto.

[0035] see figure 2 , every door machine comprises door frame 17. Traveling mechanism 1 is installed in the bottom of door frame 17 and makes whole door machine...

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Abstract

The invention discloses a double gantry crane lifting device. The double gantry crane lifting device comprises two gantry cranes which travel along the same horizontal guide rail. Each gantry crane comprises a gantry, a travelling mechanism, a cylinder, an upper structure, a rotation mechanism, a lifting mechanism and a derricking mechanism. The travelling mechanism is provided with a first rotary encoder which acquires the traveling position information of the gantry; the lifting mechanism is provided with a second rotary encoder which acquires lifting height information; the rotation mechanism is provided with a third rotary encoder which acquires the information of an angle at which the upper structure rotates relative to the cylinder; and the derricking mechanism is provided with a fourth rotary encoder which acquires amplitude information of a connecting rod mechanism. The double gantry crane lifting device also comprises a synchronous control system; preset position information of lifting points is stored in the synchronous control system, the position information of the lifting points of the gantry crane is acquired by all rotary encoders, and the position information is compared with the prestored information of the lifting points so as to control the positions of the lifting points of the two gantry cranes, wherein one gantry crane is a driving machine and the other gantry crane is a driven machine to ensure that two gantry cranes coordinately act.

Description

technical field [0001] The invention relates to a lifting device for a double-door crane at a wharf. Background technique [0002] Portal crane, referred to as gantry crane, is a common loading and unloading equipment for general cargo terminals. However, at present, there are generally problems in the loading and unloading of oversized, overweight, and expensive large-scale equipment that cannot be safely lifted by a single door crane. If you rent a floating crane, first, it will increase the loading and unloading costs of the goods, which will easily lead to the loss of supply. Second, due to the limited floating crane, you need to apply in advance, and it is difficult to pre-control the time for loading and unloading large equipment; High, and the cost recovery period is long. Second, the design load capacity of the wharf is limited, which has great restrictions on the increase of large-tonnage gantry cranes. [0003] Therefore, loading and unloading large-scale equipme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/62B66C23/88
Inventor 任胜华廖胜前陆龙兴张惠杰卜明春范伟李小松卢超杨强
Owner SHANGHAI INTERNATIONAL PORT
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