CN103303436A

CN103303436A - Process for installing hinges to large hatch cover

Info

Publication number: CN103303436A
Application number: CN2012100611913A
Authority: CN
Inventors: 曾真; 刘和平
Original assignee: ZHOUSHAN YONGJIN MARINE FITTING Co Ltd
Current assignee: ZHOUSHAN YONGJIN MARINE FITTING Co Ltd
Priority date: 2012-03-09
Filing date: 2012-03-09
Publication date: 2013-09-18

Abstract

The invention discloses a process for installing hinges to a large hatch cover and belongs to the field of ship construction. The process for installing the hinges to the large hatch cover comprises the following steps: preparing hatch cover, hinge group and dummy shaft materials; horizontally placing a hatch cover to a jig; manufacturing the specification of a dummy shaft, wherein the dummy shaft is made of stainless steel in general, the diameter of the dummy shaft is 0.1mm larger than that of a true shaft, and the dummy shaft and hinge groups are just within an interference fit range; heating the hinge groups to 100 DEG C; inserting the dummy shaft into inner bores of the hinge groups; performing pre-positioning by running a measuring wire on the two sets of hinge groups into which the dummy shaft is inserted, and fixing the hinge groups to both sides of the hatch cover in advance by spot welding; performing center alignment by an optical light measure instrument, slowly beating the hinge groups by using a hammer, ending beating when centers of the two sets of the hinge groups are overlapped, and finally, performing full-length welding on the hinge groups; removing the dummy shaft and installing the true shaft when the manufactured hatch cover is installed on a ship, and therefore, the hatch cover can be well rotated, and can be more flexibly opened and closed.

Description

Large-hatch cover hinge mounting process

Technical field

The present invention relates to large-hatch cover hinge mounting process, belong to the ship building field.

Background technology

After the hatch cover of at present a lot of shipyards is made, often occur the hinge dislocation when installing or install the rotation of rear deck lid harsh noise occurring, had a strong impact on the quality of ship, above-mentioned reason appears, mainly be in the welding hinge set, hinge set is in free state and causes due to mal-position or the rear deformation of welding, is a urgent problem at present.

Summary of the invention

The purpose of this invention is to provide a kind of large-hatch cover hinge mounting process.

The problem to be solved in the present invention is after present shipyard hatch cover is made, and often occurs the hinge dislocation when installing or install the rotation of rear deck lid harsh noise occurring, has had a strong impact on the deficiency of ship quality.

For realizing purpose of the present invention, the technical solution used in the present invention is:

Large-hatch cover hinge mounting process may further comprise the steps:

A, be ready to hatch cover, hinge set and dummy shaft material;

B, hatch cover entirely is placed on the moulding bed, measures with spirit level it is horizontal;

C, make the specification of dummy shaft, dummy shaft generally adopts corrosion-resistant steel, and diameter will just in time be in the interference fit scope with hinge set greater than true axle 0.1mm, to guarantee accurate concentricity;

D, hinge set are heated to 100 degree, dummy shaft are inserted in the endoporus of hinge set;

E, two groups of hinge set will inserting dummy shaft are carried out the backguy pre-determined bit, pre-fix both sides at hatch cover by spot welding;

F, hope the light instrument carry out the center by optics, allow the workman with iron hammer hinge set slowly be beaten, when the center superposition of two groups of hinge set, stop to beat, at last hinge set is carried out full weld, make it be firmly fixed at the hatch cover both sides;

G, when making good hatch cover and aboard ship install, remove dummy shaft, load onto the true axle less than dummy shaft diameter, just can rotate well, the switching of hatch cover is also more flexible.

Advantage of the present invention: by default dummy shaft, in advance hinge set is positioned, the position is accurate during welding, and precision is high, makes efficient also fast, has also improved the ship quality simultaneously.

Description of drawings

Fig. 1 is the schematic diagram of large-hatch cover hinge mounting process of the present invention;

1, hatch cover 2, hinge set 3, dummy shaft.

The specific embodiment

The present invention is further illustrated below in conjunction with drawings and Examples.

Large-hatch cover hinge mounting process may further comprise the steps:

A, be ready to hatch cover 1, hinge set 2 and dummy shaft 3 materials;

B, hatch cover 1 entirely is placed on the moulding bed, measures with spirit level it is horizontal;

C, make the specification of dummy shaft 3, the dummy shaft 3 general corrosion-resistant steels that adopt, diameter will just in time be in the interference fit scope with hinge set 2 greater than true axle 0.1mm, to guarantee accurate concentricity;

D, hinge set 2 are heated to 100 degree, and dummy shaft 3 is inserted in the endoporus of hinge set 2;

E, the two groups of hinge set 2 that will insert dummy shaft 3 are carried out the backguy pre-determined bit, pre-fix both sides at hatch cover 1 by spot welding;

F, hope the light instrument carry out the center by optics, allow the workman with iron hammer hinge set 2 slowly be beaten, when the center superposition of two groups of hinge set 2, stop to beat, at last hinge set 2 is carried out full weld, make it be firmly fixed at hatch cover 1 both sides;

G, when making good hatch cover 1 and aboard ship install, remove dummy shaft 3, load onto the true axle less than dummy shaft 3 diameters, just can rotate well, the switching of hatch cover 1 is also more flexible.

Claims

1. large-hatch cover hinge mounting process, it is characterized in that: this technique may further comprise the steps:

A, be ready to hatch cover (1), hinge set (2) and dummy shaft (3) material;

B, hatch cover (1) entirely is placed on the moulding bed, measures with spirit level it is horizontal;

C, make the specification of dummy shaft (3), dummy shaft (3) generally adopts corrosion-resistant steel, and diameter will just in time be in the interference fit scope with hinge set (2), to guarantee accurate concentricity greater than true axle 0.1mm;

D, hinge set (2) are heated to 100 degree, dummy shaft (3) are inserted in the endoporus of hinge set (2);

E, the two groups of hinge set (2) that will insert dummy shaft (3) are carried out the backguy pre-determined bit, pre-fix both sides in hatch cover (1) by spot welding;

F, hope the light instrument carry out the center by optics, allow the workman with iron hammer hinge set (2) slowly be beaten, when the center superposition of two groups of hinge set (2), stop to beat, at last hinge set (2) is carried out full weld, make it be firmly fixed at hatch cover (1) both sides;

G, when making good hatch cover (1) when installing aboard ship, remove dummy shaft (3), load onto than the little true axle of dummy shaft (3) diameter, just can rotate well, the switching of hatch cover (1) is also more flexible.