CN107052773A - A kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe - Google Patents
A kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe Download PDFInfo
- Publication number
- CN107052773A CN107052773A CN201611202210.4A CN201611202210A CN107052773A CN 107052773 A CN107052773 A CN 107052773A CN 201611202210 A CN201611202210 A CN 201611202210A CN 107052773 A CN107052773 A CN 107052773A
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- CN
- China
- Prior art keywords
- lower nut
- pallet
- groups
- cross
- steel pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to a kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe, it is characterized in that：A pallet is made with steel plate, one flat post hydraulic jack for being capable of vertical jacking is set under pallet, the steel ball that one layer of cloth can be rolled on pallet, lower nut is placed on steel ball, and lower nut is located at immediately below three groups of cross-roll straightening machine columns of seamless steel pipe, with flat post hydraulic jack jacking pallet, the movement and rotation of lower nut are adjusted using the steel ball on pallet, most lower nut is screwed under column on screw thread at last.Its advantage is：Can three groups of cross-roll straightening machine column lower nuts of Fast Installation large-sized seamless steel pipe, security is higher, and construction cost is low, quality is high.
Description
Technical field
The present invention relates to a kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe, belong to metallurgical machinery and set
Standby installation Technology field.
Background technology
On seamless steel pipe rolling line in order to eliminate seamless steel pipe in the operation of rolling influence of various factors and produce shape
Etc. defect, rolled piece needs to be aligned on straightener, therefore straightener is the important plant equipment in Rolling production.
Three groups of cross-roll straightening machines of seamless steel pipe (are used for upper straightening roll by three groups of upper roller system adjusting apparatus containing three groups of hoisting cross beams
Highly adjust), the assembling of three groups of top working rolls, three groups of bottom working rolls assemblings, lower roll system adjusting apparatus (highly adjust for lower smoothing roll
It is whole), reclining apparatus (be used for smoothing roll angle adjustment), rack (be made up of, column entablature, lower bearing bracket and eight root posts
By hydraulic pre-tightening mode to upper lower bearing bracket apply pretightning force), main drive, changing rig, straightener approach table, aligning
Machine runout table is constituted.Wherein main drive is made up of main motor, combining speed reducer, base, Hooks coupling universal coupling.Main transmission is filled
Put and two sets, a set of offer upper straightening roll power, smoothing roll power under a set of offer are provided.
The mandrel mill-rolled steel pipe production line installing engineerings of Φ 460 are arranged symmetrically two straighteners, belong to big on seamless steel tube production chain
The skew roller type structure straightener of type.Seamless steel pipe cross-roll straightening machine has 8 root posts, and column mid diameter is 360mm, two ends screw thread
For M240mm.Column two ends are respectively mounted upper and lower nut.Due to lower nut weight 110kg, and stood installed in sill lower base
Between muscle, narrow space, it is impossible to be directly threaded into.Installed for this larger lower nut, general method is：M240mm is made to hang
Loading nut, hangs column lower nut, when landing to axle, be screwed into after lower nut, the M240mm that dismantles lifting nuts carry out next nut
Install.It is using the M240mm shortcomings for lifting nut progress lower nut installation：Processing whole ring nut need to cut into two, Cai Nengshi
It is existing convenient to assemble and disassemble, but the cutting deformation after cutting is larger, and not only construction cost is high, difficulty is big, and security is poor, construction quality
It is low.
The content of the invention
Can be with the larger lower nut of Fast Installation it is an object of the invention to provide one kind, security is higher, and construction cost is low, matter
The high three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe of amount.
The method of the present invention is as follows：
A pallet is made with steel plate, is set under pallet on a flat post hydraulic jack for being capable of vertical jacking, pallet
The steel ball that one layer of cloth can be rolled, lower nut is placed on steel ball, and lower nut is vertical positioned at three groups of cross-roll straightening machines of seamless steel pipe
Immediately below post, with flat post hydraulic jack jacking pallet, the movement and rotation of lower nut are adjusted using the steel ball on pallet, most
Lower nut is screwed under column on screw thread at last.
It is an advantage of the invention that：Being capable of three groups of cross-roll straightening machine column lower nuts of Fast Installation large-sized seamless steel pipe, safety
Property is higher, and construction cost is low, quality is high.
Brief description of the drawings
The installation schematic diagram that Fig. 1 is.
In figure：1st, screw thread under column, 2, lower nut, 3, round steel circle, 4, steel ball, 5, pallet, 6, flat post hydraulic jack.
Embodiment
The installation method of seamless steel pipe cross-roll straightening machine is：
1st, after base, sill are installed, 8 M240mm, long 4990mm column are hung with bridge crane by root
Fill, penetrate the column mounting holes that base, sill are set；
2nd, after bottom working roll is installed, sling every hoisting cross beam and every top working roll is screwed into bearing block fixing bolt and consolidated
It is fixed；
3rd, three groups of hinge type hoisting cross beams are corresponded into 8 root post axles one by one, penetrates column；
4th, entablature hangs installation；
The 5th, the upper and lower nut of M240 columns is installed
1) column top nut is directly lifted using factory building overhead traveling crane, and is screwed into fastening.
2) installation of column lower nut is using method of the invention.Referring to the drawings, the steel plate for being 16mm with thickness makes one
The one flat post hydraulic pressure for being capable of vertical jacking is set on individual pallet 5, pallet under the concentric round steel circle 3 of fixed inside and outside two circle, pallet
The steel ball 4 that one layer of cloth can be rolled between the concentric round steel circle 3 of inside and outside two circle on jack 6, pallet, steel is placed on by lower nut 2
On pearl, and lower nut is located at immediately below three groups of cross-roll straightening machine columns of seamless steel pipe, with flat post hydraulic jack jacking pallet, profit
The movement and rotation of lower nut are adjusted with the steel ball on pallet, most lower nut is screwed under column on screw thread 1 at last.
Claims (1)
1. a kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe, it is characterized in that：A support is made with steel plate
The steel ball that one layer of cloth can be rolled on one flat post hydraulic jack for being capable of vertical jacking, pallet is set under disk, pallet, by lower spiral shell
Mother is placed on steel ball, and lower nut is located at immediately below three groups of cross-roll straightening machine columns of seamless steel pipe, with flat post hydraulic jack
Jacking pallet, the movement and rotation of lower nut is adjusted using the steel ball on pallet, most lower nut is screwed to screw thread under column at last
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202210.4A CN107052773A (en) | 2016-12-23 | 2016-12-23 | A kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202210.4A CN107052773A (en) | 2016-12-23 | 2016-12-23 | A kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107052773A true CN107052773A (en) | 2017-08-18 |
Family
ID=59618977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611202210.4A Pending CN107052773A (en) | 2016-12-23 | 2016-12-23 | A kind of three groups of cross-roll straightening machine column lower nut installation methods of seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107052773A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009747A (en) * | 1999-06-29 | 2001-01-16 | Toshiba Plant Kensetsu Co Ltd | Mounting and demounting jig of lock nut for coupling |
| JP2008254143A (en) * | 2007-04-06 | 2008-10-23 | Meishin Kogyo Kk | Embedded nut mounting device |
| CN101618506A (en) * | 2009-07-10 | 2010-01-06 | 上海江南长兴造船有限责任公司 | Installation tool and installation method for rudderstock hydraulic nut of supertanker |
| CN202114460U (en) * | 2011-04-15 | 2012-01-18 | 南通太平洋海洋工程有限公司 | Seabed hydraulic nut setting tool for rudderstock |
| CN102357797A (en) * | 2011-10-19 | 2012-02-22 | 中国二十二冶集团有限公司 | Elasticity-type rotary tray and method for installing nut on large oil press |
| CN103817517A (en) * | 2014-02-21 | 2014-05-28 | 中信重工机械股份有限公司 | Device and method for mounting heavy nuts in low space |
| CN203751667U (en) * | 2014-03-03 | 2014-08-06 | 中国十七冶集团有限公司 | Disassembly and assembly device for pressing-down copper nut of rolling mill |
-
2016
- 2016-12-23 CN CN201611202210.4A patent/CN107052773A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009747A (en) * | 1999-06-29 | 2001-01-16 | Toshiba Plant Kensetsu Co Ltd | Mounting and demounting jig of lock nut for coupling |
| JP2008254143A (en) * | 2007-04-06 | 2008-10-23 | Meishin Kogyo Kk | Embedded nut mounting device |
| CN101618506A (en) * | 2009-07-10 | 2010-01-06 | 上海江南长兴造船有限责任公司 | Installation tool and installation method for rudderstock hydraulic nut of supertanker |
| CN202114460U (en) * | 2011-04-15 | 2012-01-18 | 南通太平洋海洋工程有限公司 | Seabed hydraulic nut setting tool for rudderstock |
| CN102357797A (en) * | 2011-10-19 | 2012-02-22 | 中国二十二冶集团有限公司 | Elasticity-type rotary tray and method for installing nut on large oil press |
| CN103817517A (en) * | 2014-02-21 | 2014-05-28 | 中信重工机械股份有限公司 | Device and method for mounting heavy nuts in low space |
| CN203751667U (en) * | 2014-03-03 | 2014-08-06 | 中国十七冶集团有限公司 | Disassembly and assembly device for pressing-down copper nut of rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |