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A method for constructing a lifting frame of a gravel-laying screed ship

A lifting frame and construction method technology, applied in construction, artificial island, infrastructure engineering and other directions, can solve the problem of not finding the same or similar technical solutions, high requirements for construction and installation accuracy, to improve welding quality and work efficiency, High closing precision and good construction environment

Active Publication Date: 2021-02-09
NANTONG ZHENHUA HEAVY EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] 4. After the construction is completed, machining and mechanical equipment installation are required, and the construction and installation precision requirements are high
After retrieving relevant documents, no technical solutions identical or similar to the present invention have been found

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  • A method for constructing a lifting frame of a gravel-laying screed ship
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  • A method for constructing a lifting frame of a gravel-laying screed ship

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Embodiment Construction

[0059] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.

[0060] In the construction method of the lifting frame of the gravel-laying leveling ship of the present invention, the lifting frame is divided into an upper guide unit, two lifting units, and two cylinder units, wherein the lifting unit includes an upper section of the lifting unit and a lower section of the lifting unit, and then , build and process each unit independently, and finally carry and close them on the berth, which can be realized through the following steps:

[0061] The first step is to make the upper section of the lifting unit: the upper section of the lifting unit includes a pair of symmetrically distributed lifting segments, the two lifting segments are relatively distributed, and the adjacent sides of the two lifting segments are in the shape of a cylind...

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PUM

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Abstract

The invention relates to a construction method of a lifting frame of a gravel-laying leveling ship. Firstly, the lifting frame is divided into an upper guide unit, two lifting units, and two cylinder units, wherein the lifting unit includes an upper section of the lifting unit, a lifting unit In the lower section, each unit is independently built and processed, and finally assembled on the berth. The advantage of the present invention is that: according to the structural characteristics of the lifting frame, through the optimization of the production process, the lifting frame is divided into five units for construction, and each stage is carried out on a dedicated station. According to the production characteristics of each stage, additional Welding shrinkage allowance and anti-deformation, and a special welding sequence have been formulated to ensure that the dimensions of the cylinder and rack after welding the legs meet the tolerance requirements of the drawings.

Description

technical field [0001] The invention relates to the field of marine engineering and ship building methods, in particular to a method for building a lifting frame of a gravel-laying screed. Background technique [0002] In the construction of subsea tunnels, the foundation leveling of immersed tubes is an indispensable construction technology. The traditional manual leveling operation can no longer meet the needs of underwater construction. Key challenges in construction operations. The gravel leveling ship is an indispensable core equipment for foundation leveling, and its designed operating life is as long as 2,000 hours. The realization of this operating time mainly depends on its special components such as pile legs and lifting systems. [0003] The lifting frame structure is responsible for the pile insertion and extraction of pile legs and the positioning of the entire platform, which is the key component for the vertical movement and accurate positioning of the entire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00E02B17/08
CPCE02B17/00E02B17/08
Inventor 徐锐季秋兵吴正峰沈鹏鹏施浩杰
Owner NANTONG ZHENHUA HEAVY EQUIP MFG