CN110328480B

CN110328480B - Mud door welding set for dredger

Info

Publication number: CN110328480B
Application number: CN201910226351.7A
Authority: CN
Inventors: 刘新东; 江沛波; 沈立刚; 褚爱明; 胡卓; 陈鼎
Original assignee: Guangzhou Wenchuan Heavy Industry Co ltd; Guangzhou Wenchong Shipyard Co Ltd
Current assignee: Guangzhou Wenchuan Heavy Industry Co ltd; Guangzhou Wenchong Shipyard Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2022-03-15
Anticipated expiration: 2039-03-25
Also published as: CN110328480A

Abstract

The invention relates to the technical field of ship manufacturing, in particular to a mud door welding device for a dredger, which comprises a base column, a workbench and at least one rotary supporting column, wherein the workbench is arranged on the circumferential surface of the base column in a surrounding mode and is vertical to the axis of the base column, and the rotary supporting column is obliquely connected to the base column. The invention has simple structure, and in the welding and assembling process of the conical mud door, the conical mud door is sleeved on the rotary supporting column, so that the angle of the welding position of the conical mud door needing the vertical fillet welding and the overhead fillet welding is changed, and the welding can be completed by a flat welding method, thereby greatly reducing the labor intensity and the skill requirement of workers and improving the welding quality and efficiency.

Description

Mud door welding set for dredger

Technical Field

The invention relates to the technical field of ship manufacturing, in particular to a mud door welding device for a dredger.

Background

With the increasing of international inter-enterprise competition, the enterprise quality improvement and efficiency increase become one of main competitiveness, the ship outfitting industry is extremely competitive, and in order to improve the quality and efficiency of built products, various enterprises continuously innovate ideas on the basis of the existing construction, improve the construction process and reduce the influence of personnel factors. As a domestic famous dredger, the key outfitting conical mud door has high manufacturing precision requirement and welding quality; the structure is relatively complicated, a large amount of vertical welding and dead angle welding exist, and the construction difficulty is large.

CN201410855385.X discloses a manufacturing process of a conical mud door, which is used for welding on a manufacturing platform, and has the defects of large quantity of vertical fillet welding and overhead welding, narrow central position during welding, inconvenient welding, low welding efficiency and difficult control of welding quality. Mainly due to the central concentration problem of the vertebral body structure.

Disclosure of Invention

The invention aims to provide a mud door welding device for a dredger, which is beneficial to improving the welding quality and efficiency of a conical mud door and reducing the labor intensity of construction personnel.

In order to achieve the purpose, the invention provides a mud door welding device for a dredger, which comprises a base column, a workbench and at least one rotary supporting column, wherein the workbench is arranged around the circumferential surface of the base column and is vertical to the axis of the base column, and the rotary supporting column is obliquely connected to the base column.

Optionally, an included angle α formed by the axis of the rotating support column and the horizontal plane is 4-7 °.

Optionally, the two ends of the rotating support column are rotatably sleeved with a first pulley and a second pulley for supporting the rotation of the conical mud door.

Optionally, the first pulley is evenly provided with a plurality of limiting holes along the circumferential direction, the rotating support column is provided with positioning holes corresponding to the limiting holes, and the limiting posts penetrate through the limiting holes and are connected with the positioning holes.

Optionally, an included angle β between axes of adjacent limiting holes is 30 °.

Optionally, the limiting column is connected with an installation chain, and one end of the installation chain is connected with the base column.

Optionally, the first pulley and the second pulley are provided with a chamfer angle for facilitating the sleeving of the conical mud door at one end back to the base column.

Optionally, a distance d between one side edge of the workbench far away from the base column and the base column is greater than 1 m.

Optionally, the workbench is provided with a ladder stand for climbing up and down.

The embodiment of the invention has the following technical effects:

the invention has simple structure, and in the welding and assembling process of the conical mud door, the conical mud door is sleeved on the rotary supporting column, so that the angle of the welding position of the conical mud door needing the vertical fillet welding and the overhead fillet welding is changed, and the welding can be completed by a flat welding method, thereby greatly reducing the labor intensity and the skill requirement of workers and improving the welding quality and efficiency.

Drawings

FIG. 1 is a front view of a preferred embodiment of the present invention;

FIG. 2 is a left side view of the preferred embodiment of the present invention;

FIG. 3 is a schematic view of the assembly of the preferred embodiment of the present invention with a conical mud door;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

fig. 5 is a cross-sectional view taken at a-a in fig. 1.

Description of reference numerals:

1. the base column, 2, the workstation, 3, the rotation support post, 4, first pulley, 5, second pulley, 6, spacing post, 7, spacing hole, 8, installation chain, 9, chamfer angle, 10, cat ladder, 11, toper mud door.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, the embodiment provides a mud door welding device for a dredger, including a base column 1, a workbench 2 and at least one rotating support column 3, where the workbench 2 is enclosed on the circumferential surface of the base column 1 and perpendicular to the axis of the base column 1, and the rotating support column 3 is obliquely connected to the base column 1. The invention has simple structure, and in the welding and assembling process of the conical mud door 11, the conical mud door 11 is sleeved on the rotary supporting column 3, so that the angle of the welding position of the conical mud door 11 which needs vertical fillet welding and overhead fillet welding can be changed, and the welding can be completed by a flat welding method, thereby greatly reducing the labor intensity and the skill requirement of workers and improving the welding quality and efficiency.

Referring to fig. 1, wherein, the axis of the rotation support column 3 and the horizontal plane form an included angle α of 4~7 °, on the one hand, when making the toper mud door 11 cover on the rotation support column 3, the toper mud door 11 is coaxial with the rotation support column 3, and the angle is predetermine in the slope, more convenient welding, on the other hand, when making the toper mud door 11 cover establish on the rotation support column 3, the rotation support column 3 is gone into under self action of gravity, and it is more convenient to use.

Further, the rotatable cover in 3 both ends of rotation support post is equipped with and is used for supporting the rotatory first pulley 4 and the second pulley 5 of toper mud door 11, conveniently makes toper mud door 11 rotatory relatively with rotation support post 3 through first pulley 4 and second pulley 5 to adjust welded position wantonly in welding process, improve welded efficiency, reduce workman's intensity of labour.

Referring to fig. 1 and 4, this embodiment still includes spacing post 6, and the spacing hole 7 of a plurality of has evenly been seted up along the circumferencial direction to first pulley 4, and the locating hole that corresponds with spacing hole 7 is seted up to rotation support post 3, and spacing post 6 is worn to establish spacing hole 7 and is connected with the locating hole, prevents that the rotation of toper mud door 11 from influencing welding quality among the welding process, has improved among the welding process position relatively stable of toper mud door 11 and rotation support post 3, conveniently welds.

Wherein, the contained angle beta between the axis of adjacent spacing hole 7 is 30, makes toper mud door 11 rotate every 30 and can carry on spacingly through spacing hole 7 and spacing post 6, and 30 rotation angles be applicable to the displacement range when the workman welds, and the welding is more convenient.

Referring to fig. 1, specifically, the limiting column 6 is connected with an installation chain 8, and one end of the installation chain 8 is connected with the base column 1, so that the limiting column 6 can be used and placed conveniently, and loss is prevented.

Further, the one end of first pulley 4 and second pulley 5 back to base post 1 all is equipped with the chamfer angle 9 that is used for making things convenient for toper mud door 11 to embolia, makes things convenient for emboliaing of toper mud door 11, improves convenient degree and the installation effectiveness of use.

Referring to fig. 4, in the present embodiment, a distance d between one side edge of the workbench 2 away from the base column 1 and the base column 1 is greater than 1m, which is convenient for a constructor to stand and walk, and improves safety in use.

Referring to fig. 2, further, the working table 2 is provided with a ladder stand 10 for climbing up and down, so that the use of constructors is facilitated, and the construction is more convenient.

In conclusion, the invention has simple structure, can effectively solve the problem that the conical mud door 11 needs fillet welding and overhead welding due to complex structure in the machining process, and improves the assembly efficiency and quality of the conical mud door 11.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the term "horizontal" is based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention.

In addition, the terms "first", "second", and the like are employed in the present invention to describe various information, but the information should not be limited to these terms, which are used only to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The mud door welding device for the dredger is characterized by comprising a base column, a workbench and at least one rotary supporting column, wherein the workbench is arranged around the circumferential surface of the base column and is vertical to the axis of the base column;

an included angle alpha formed by the axis of the rotating support column and the horizontal plane is 4-7 degrees;

a first pulley and a second pulley for supporting the conical mud door to rotate are rotatably sleeved at the two ends of the rotating support column;

in the welding process, the conical mud door is sleeved on the outer side of the rotary supporting column and is rotationally connected with the rotary supporting column through a first pulley and a second pulley, so that the angle of the conical mud door is changed when the conical mud door needs to be welded in the vertical fillet welding position and the overhead fillet welding position;

the first pulley is uniformly provided with a plurality of limiting holes along the circumferential direction, the rotating support column is provided with a positioning hole corresponding to the limiting holes, and the limiting column penetrates through the limiting holes and is connected with the positioning holes;

the distance d between one side edge of the workbench far away from the base column and the base column is more than 1 m.

2. The mud door welding apparatus for a dredger according to claim 1, wherein an angle β between axes of adjacent ones of the stopper holes is 30 °.

3. The mud door welding device for the dredger according to claim 1, wherein the limiting column is connected with a mounting chain, and one end of the mounting chain is connected with the base column.

4. The mud door welding device for the dredger according to claim 1, wherein the ends of the first pulley and the second pulley, which face away from the base column, are provided with bevels for facilitating the insertion of the conical mud door.

5. The mud door welding apparatus for a dredger according to claim 1, wherein the table is provided with a ladder stand for ascending and descending.