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Production process of steel pile structure of cutter suction dredger

A cutter suction dredger, manufacturing technology, applied in the direction of earth mover/excavator, mechanically driven excavator/dredger, construction, etc., can solve problems such as difficulty in meeting drawing design requirements, and achieve working results Good, high production precision, convenient production effect

Inactive Publication Date: 2010-08-25
南通港闸船舶制造有限公司
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Problems solved by technology

[0002] There are two positioning steel piles at the stern of the cutter suction dredger, among which the main steel pile is installed on the movable track trolley, and its position is in the middle of the stern. The total length of the main steel pile is 42 meters, and the pipe body plate thickness specification They are DH36 (25mm, 30mm, 40mm, 50mm, 60mm), and there are three pin holes on the pile body. The existing technology is generally difficult to meet the drawing design requirements

Method used

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Embodiment Construction

[0016] A manufacturing process for the steel pile structure of a cutter suction dredger includes the following steps:

[0017] (1) Sheet blanking: According to the requirements of the drawing, select the sheet blanking pretreated by DH36, the blanking size is the size without margin, the blanking accuracy is strictly controlled below 1mm, the diagonal error is also below 1mm, and the bevel is under Open the material at the same time. The longitudinal welding seam of the coiled pipe is an "X" groove with a 2mm root in the middle. The pipe and the pipe are connected in a "v" shape. Pay attention to the front and back of the plate when loading the material, and leave the root of the 30° groove on the reverse side. 2mm margin, considering the board thickness difference, the transition groove should be opened;

[0018] (2) Tire frame production: The tire frame is supported by L125 angle steel at the bottom, and the upper part is composed of a semi-circular arc template with CNC cutting ...

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Abstract

The invention discloses a production process of the steel pile structure of a cutter suction dredger. The production process comprises the following steps: blanking boards, preparing a jig, machining and bending, performing sectionalized assembly of round tubes, performing integral-type assembling, measuring pin holes, positioning and installing, coating, removing the jig, etc. the invention has the advantages of high production precision, convenient preparation and good operational effect.

Description

Technical field: [0001] The invention relates to a manufacturing process for a steel pile structure of a cutter suction dredger. Background technique: [0002] There are two positioning steel piles at the stern of the cutter suction dredger. The main steel pile is installed on the movable rail trolley and is located in the middle of the stern. The main steel pile is 42 meters in length and the thickness of the pipe body is specified. They are DH36 (25mm, 30mm, 40mm, 50mm, 60mm), and there are three pin holes on the pile. The existing technology is generally difficult to meet the design requirements of drawings. Summary of the invention: [0003] The purpose of the present invention is to provide a manufacturing process for the steel pile structure of a cutter suction dredger with high manufacturing precision, convenient manufacturing and good working effect. [0004] The technical solution of the present invention is: [0005] A manufacturing process for the steel pile structure of ...

Claims

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Application Information

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IPC IPC(8): E02F3/88E02F3/90E02F5/28
Inventor 孟锦华刘鹏鑫邵金炎
Owner 南通港闸船舶制造有限公司
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