CN108393603B - Mounting process of square mud door of dredger - Google Patents
Mounting process of square mud door of dredger Download PDFInfo
- Publication number
- CN108393603B CN108393603B CN201810110027.4A CN201810110027A CN108393603B CN 108393603 B CN108393603 B CN 108393603B CN 201810110027 A CN201810110027 A CN 201810110027A CN 108393603 B CN108393603 B CN 108393603B
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- mud door
- mud
- square
- door body
- dredger
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000011900 installation process Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 claims 1
- 239000002893 slag Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000011017 operating method Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
Abstract
The utility model provides an installation technology of square mud door of dredge, including 10 steps, this installation technology of square mud door of dredge is at the assembling process of square mud door, round pin axle adjustment otic placode and mud door horizontal position after with mud door otic placode and the mud door body coupling, make it reach the level unanimity, then push the mud door mouth with it, through jack leveling, the otic placode of spot welding again, the horizontal position of the otic placode and the mud door body has directly been adjusted in this operation, make the shaft hole reach the same position, need not carry out secondary operation to the shaft hole again after the installation, reduce operating procedure, alleviate staff's work load, make work efficiency higher.
Description
Technical Field
The invention relates to the field of steel structure assembly, in particular to a mounting process of a square mud door of a dredger.
Background
The square mud door on the ship body consists of two square mud doors, namely a broadside square mud door and a midship square mud door, the two square mud doors are different except for a boss and a rubber strip clamping plate, and other structures are the same. The main structural component of the square mud door consists of an upper panel, a lower panel, an ear plate, an adjusting web plate, an internal rib plate and a clamping plate for fixing a sealing rubber strip. In the installation process of the square mud door, the coaxiality of the lug plates of the hinge points in the square door structure and the levelness of the panel and the adjusting web plate need to be considered in a key mode, and therefore the installation accuracy of the square mud door is guaranteed.
Disclosure of Invention
In order to solve the problems, the invention provides the mounting process of the square mud door of the dredger, which can effectively ensure the mounting precision of the square mud door and is convenient.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a mounting process of a square mud door of a dredger comprises the following steps:
1) horizontally placing the mud door body on a temporary jig frame, connecting the lug plate with the mud door body through a pin shaft, and using a tool to enable the lug plate to be horizontal to the mud door body;
2) completely arranging the left mud door body and the right mud door body, measuring the distance between the two mud door bodies and recording;
3) respectively pushing the left and right mud door bodies into the lower part of the mud door opening, and ejecting the mud door bodies into the mud door opening from bottom to top;
4) leveling the mud door body;
5) then measuring the distance between the two mud door bodies, recording, comparing with the data in the step 2), adjusting to be consistent, checking the fitting condition of the lug plates and the mud door opening longitudinal plates, and trimming the lug plate allowance according to the condition;
6) spot welding the lug plate;
7) taking down the mud door lug plate pin shaft, and detaching the mud door body through the tooling platform;
8) a dummy shaft making tool passes through the centers of the lug plate holes, then the lug plates are welded, and the dummy shaft making tool is disassembled after cooling;
9) pushing the two mud door bodies into the mud door openings again, and assembling the pin shafts of the mud door ear plates;
10) and leveling the mud door body through the jack again, and fixing the lower part of the mud door by using the adjusting device to finish the installation of the square mud door.
The invention has the beneficial effects that: this installation technology of square mud door of dredge boat is in the assembling process of square mud door, round pin axle adjustment otic placode and mud door horizontal position after with mud door otic placode and the body coupling of mud door, make it reach the level unanimity, then push the mud door mouth with it, through the jack leveling, the otic placode is welded again in the spot, the horizontal position of otic placode and the mud door body has directly been adjusted in this operation, make the shaft hole reach same position, need not carry out secondary operation to the shaft hole again after the installation, reduce operating procedure, alleviate staff's work load, make work efficiency higher.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
The mud door body 1, the otic placode 2, indulge board 3, the otic placode hole 4, wedge billet 5.
Detailed Description
The following further describes the example of a 7000m3 square mud door of a trailing suction hopper dredger.
The embodiment of the invention provides an installation process of a square mud door of a dredger, which adopts the following technical scheme:
the mud door body is placed on interim bed-jig horizontally in first step, is connected mud door otic placode 2 and mud door body 1 through the round pin axle, uses the frock to make otic placode 2 and mud door body 1 level, and 4 tolerances in mud door round pin axle and mud door otic placode hole should accord with the IHC requirement (before the dress mud door body, guarantee the segmentation level of mud door body within range, the outer bottom plate plane degree is not more than 4mm, should be not more than 2mm with the high drop of bilge floor after the mud door body dress is good).
And in the second step, the left mud door body 1 and the right mud door body 1 are completely arranged, and the distance between the two mud door bodies 1 is measured and recorded.
And thirdly, pushing the mud door body 1 into the lower part of the mud door opening respectively, and ejecting the mud door body 1 into the mud door opening from bottom to top.
And fourthly, respectively arranging 1 jack at four corners of each mud door body 1, and leveling the mud door body 1 through the jacks. And fifthly, measuring the distance between the two mud door bodies 1, recording, comparing with the data in the step 2), adjusting to be consistent, checking the fitting condition of the ear plates 2 and the mud door opening longitudinal plates 3, and trimming the allowance of the ear plates 2 according to the condition.
And sixthly, spot welding 4 lug plates 2, wherein the length of each welding line is 50mm, and the distance between the welding lines is 50 mm.
And seventhly, taking down the pin shaft of the mud door ear plate 2, and detaching the mud door body 1 through the tooling platform.
And eighthly, making a dummy shaft tool, penetrating through the centers of the 2 lug plate holes 4, welding the lug plates 2, welding two sides simultaneously during welding, ensuring that the welding current is as small as possible, observing the deformation condition of the lug plates 2 while welding, intermittently rotating the dummy shaft to prevent the dummy shaft from being stuck and seized in the welding process, and disassembling the dummy shaft tool after cooling.
And in the ninth step, the two mud door bodies 1 are pushed into the mud door opening again, the mud door lug plate 2 is arranged well through the pin shaft, in the process of arranging the pin shaft, the mud door is knocked slowly, and the resistance is uniformly good when people feel. After the pin shaft is installed, the anti-loosening covers at the two ends of the pin shaft are firmly welded in a spot mode.
And step ten, leveling the mud door body 1 again through a jack, fixing the lower part of the mud door by using a wedge-shaped wood block 5, and entering the next procedure.
The diameter of the dummy shaft tool is larger than that of the pin shaft.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The mounting process of the square mud door of the dredger is characterized by comprising the following steps of:
1) horizontally placing the mud door body (1) on a temporary jig frame, connecting the lug plate (2) with the mud door body (1) through a pin shaft, and using a tool to enable the lug plate (2) to be horizontal to the mud door body (1);
2) completely arranging the left mud door body and the right mud door body (1), measuring the distance between the two mud door bodies (1) and recording;
3) respectively pushing the left and right mud door bodies (1) into the lower part of the mud door opening, and pushing the mud door bodies (1) into the mud door opening from bottom to top;
4) leveling the mud door body (1);
5) then measuring the distance between the two mud door bodies (1), recording, comparing with the data in the step 2), adjusting to be consistent, checking the bonding condition of the ear plates (2) and the mud door opening longitudinal plates (3), and trimming the allowance of the ear plates (2) according to the condition;
6) spot welding the lug plate (2);
7) the mud door ear plate (2) is taken down through the pin shaft, and the mud door body (1) is detached through the tooling platform;
8) a false shaft tool is made, penetrates through the centers of the lug plate holes (4), then the lug plates (2) are welded, and the false shaft tool is disassembled after cooling;
9) the two mud door bodies (1) are pushed into the mud door openings again, and the pin shafts of the mud door lug plates (2) are installed well;
10) and leveling the mud door body (1) by the jack again, and fixing the lower part of the mud door by using an adjusting device to finish the installation of the square mud door.
2. The installation process of the dredger square mud door according to claim 1, wherein: in the step 6), the lug plates (2) are spot-welded, the length of each welding line is 50mm, and the distance between the welding lines is 50 mm.
3. The installation process of the dredger square mud door according to claim 1, wherein: in the step 8), the lug plates (2) in the same dummy shaft tool are welded simultaneously, the welding current is as small as possible, the defects of incomplete welding and slag inclusion are preferably avoided, the deformation condition of the lug plates (2) is observed while welding, and the dummy shaft is discontinuously rotated in the welding process to prevent the dummy shaft from being clamped and seized.
4. The installation process of the dredger square mud door according to claim 1, wherein: and 9), slowly knocking in the process of installing the pin shaft, sensing that the resistance is uniform and good, and firmly welding the anti-loosening covers at the two ends of the pin shaft after installing the pin shaft.
5. The installation process of the dredger square mud door according to claim 3, wherein: the diameter of the dummy shaft tool is larger than that of the pin shaft.
6. The installation process of the dredger square mud door according to claim 1, wherein: in the step 4), 1 jack is respectively arranged at four corners of each mud door body (1), and the mud door body (1) is leveled through the jacks.
7. The installation process of the dredger square mud door according to claim 1, wherein: in the step 10), the adjusting device is a wedge-shaped wood block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110027.4A CN108393603B (en) | 2018-02-05 | 2018-02-05 | Mounting process of square mud door of dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110027.4A CN108393603B (en) | 2018-02-05 | 2018-02-05 | Mounting process of square mud door of dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108393603A CN108393603A (en) | 2018-08-14 |
| CN108393603B true CN108393603B (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810110027.4A Active CN108393603B (en) | 2018-02-05 | 2018-02-05 | Mounting process of square mud door of dredger |
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| Country | Link |
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| CN (1) | CN108393603B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114162281B (en) * | 2021-12-15 | 2023-04-18 | 上海振华重工启东海洋工程股份有限公司 | Double-open type mud door installation process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038795A (en) * | 1998-04-22 | 2000-03-21 | Navarro; Pablo | Dredger with lockable rear door |
| CN202225114U (en) * | 2011-08-23 | 2012-05-23 | 武昌造船厂集团有限公司 | Dummy shaft positioning mechanism |
| CN104625452A (en) * | 2014-12-31 | 2015-05-20 | 广州文冲船厂有限责任公司 | Installation technology for dredger square mud doors |
| CN105000128A (en) * | 2015-07-03 | 2015-10-28 | 浙江舟山博斯特船舶设计研究院有限公司 | Mud door installation method for trailing suction hopper dredger |
| CN206084900U (en) * | 2016-08-16 | 2017-04-12 | 南通润邦海洋工程装备有限公司 | Mud door otic placode coaxial arrangement frock |
-
2018
- 2018-02-05 CN CN201810110027.4A patent/CN108393603B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6038795A (en) * | 1998-04-22 | 2000-03-21 | Navarro; Pablo | Dredger with lockable rear door |
| CN202225114U (en) * | 2011-08-23 | 2012-05-23 | 武昌造船厂集团有限公司 | Dummy shaft positioning mechanism |
| CN104625452A (en) * | 2014-12-31 | 2015-05-20 | 广州文冲船厂有限责任公司 | Installation technology for dredger square mud doors |
| CN105000128A (en) * | 2015-07-03 | 2015-10-28 | 浙江舟山博斯特船舶设计研究院有限公司 | Mud door installation method for trailing suction hopper dredger |
| CN206084900U (en) * | 2016-08-16 | 2017-04-12 | 南通润邦海洋工程装备有限公司 | Mud door otic placode coaxial arrangement frock |
Non-Patent Citations (3)
| Title |
|---|
| 大型耙吸挖泥船泥舱结构设计与研究;唐旭东;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20120715(第7期);全文 * |
| 大型耙吸挖泥船疏浚设备建造技术研究;钱善波;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20100415;全文 * |
| 耙吸式挖泥船泥门浮坞安装控制与研究;俞冬军等;《中国高新区》;20170430(第8期);全文 * |
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| CN108393603A (en) | 2018-08-14 |
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Application publication date: 20180814 Assignee: ZHOUSHAN HAORUILAN SHIPPING TECHNOLOGY DEVELOPMENT CO.,LTD. Assignor: ZHEJIANG INTERNATIONAL MARITIME College Contract record no.: X2024980002312 Denomination of invention: Installation Technology of Square Mud Gate on Dredger Granted publication date: 20200731 License type: Common License Record date: 20240228 |
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Application publication date: 20180814 Assignee: Zhoushan Cize Shipbuilding Co.,Ltd. Assignor: ZHEJIANG INTERNATIONAL MARITIME College Contract record no.: X2024980011903 Denomination of invention: Installation process of square mud door for dredger Granted publication date: 20200731 License type: Common License Record date: 20240813 Application publication date: 20180814 Assignee: Zhoushan Junhang Ship Engineering Service Co.,Ltd. Assignor: ZHEJIANG INTERNATIONAL MARITIME College Contract record no.: X2024980011785 Denomination of invention: Installation process of square mud door for dredger Granted publication date: 20200731 License type: Common License Record date: 20240813 |