CN203599701U - Improved straight seam pipe welding unit extrusion roller device - Google Patents
Improved straight seam pipe welding unit extrusion roller device Download PDFInfo
- Publication number
- CN203599701U CN203599701U CN201320617559.XU CN201320617559U CN203599701U CN 203599701 U CN203599701 U CN 203599701U CN 201320617559 U CN201320617559 U CN 201320617559U CN 203599701 U CN203599701 U CN 203599701U
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- CN
- China
- Prior art keywords
- extrusion roller
- compression roller
- roller
- welding unit
- pipe welding
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- Expired - Fee Related
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Abstract
The utility model discloses an improved straight seam pipe welding unit extrusion roller device. The improved straight seam pipe welding unit extrusion roller device comprises a left horizontal extrusion roller and a right horizontal extrusion roller, wherein the left horizontal extrusion roller and the right horizontal extrusion roller are arranged on a fixed base. The outer diameter of the outer periphery of the upper portion of each horizontal extrusion roller is smaller than the outer diameter of the outer periphery of the lower portion of the horizontal extrusion roller. An inverted trapezoid-shaped adjusting block is vertically installed at the portion, above the horizontal extrusion rollers, of the middle portion of the top face of the fixed base through an adjusting lead screw. Movable sliding plates are arranged at the positions, on the two sides of the adjusting block, of the fixed base respectively. An upper extrusion roller is arranged on each movable sliding plate through an adjusting lead screw. The outer periphery of each upper extrusion roller is an arc-shaped face. The lower portion of each upper extrusion roller makes contact with the top face of a steel tube to be welded.
Description
Technical field
The utility model relates to a kind of improved ERW unit compression roller device.
Background technology
The method of welded pipe product line general using high frequency induction welding, make socket edge produce high frequency electric, utilize the distinctive kelvin effect of high frequency electric and kindred effect, make electric current high concentration on the seam face at socket edge, rely on the resistance of metal self, edge is heated to rapidly to welding temperature, under the pressure-acting of compression roller, completes welding.Compression roller is the key equipment of welded tube unit production line, and its effect is after thick forming machine, to be the welding temperature that socket shape edge is heated to rapidly 1350 ℃～1400 ℃ with steel, under the pressure-acting of compression roller, to complete pressure welding.In the extensive use of welded tube production field.When original welded tube unit is produced, high-frequency welding compression roller adopts two roller compression rollers, because two roller compression rollers are stressed larger, often causes bearing damage, changes frequent.Because extrusion roll shaft bending causes welded tube welding seam quality unstable; And extrusion abrasion is very fast, roller consumption increases.
Summary of the invention
The purpose of this utility model is to provide a kind of improved ERW unit compression roller device, can alleviate the wearing and tearing of compression roller, avoid the welding quality defects that causes because of factors such as the wearing and tearing of bearing damage, compression roller cause, reduce the bearing replacing frequency, reduce compression roller and change number of times, reduce roller consumption.
The purpose of this utility model is to realize like this, a kind of improved ERW unit compression roller device, be included in the horizontal compression roller in two of left and right of installing on holder, the external diameter of the upper periphery edge of two horizontal compression rollers is less than the external diameter of its underpart outer peripheral edges, and the holder end face middle part above horizontal compression roller is vertically installed with an inverted trapezoidal regulating block by adjusting screw; A moving slide board is being set respectively on the holder of these regulating block both sides, on two moving slide boards, by adjusting screw, a upper compression roller is installed respectively, all curved of the outer peripheral face of two upper compression rollers, the bottom of two upper compression rollers contacts respectively with by the end face of Coiling Welded Pipe.
The utility model 1, change compression roller welding manner, changed four rollers extruding forms into by two original roller extruding forms.When steel-pipe welding, exerted pressure and changed into four rollers to being exerted pressure by Coiling Welded Pipe by Coiling Welded Pipe by two rollers, wherein, a pair of lower compression roller mainly bears the bounce being produced by the plastic deformation of Coiling Welded Pipe, another is exerted pressure to welded steel pipe seam edge to upper compression roller, allow by Coiling Welded Pipe edge to concordant, apply the welding pressure needing simultaneously.Owing to producing the needed welding pressure of welded tube of same specification, there are two compression rollers to bear to become four compression rollers and bear, the quantity of bearing, extrusion roll shaft is corresponding increase also, the stressed of each bearing, extrusion roll shaft alleviated, thereby bearing, extrusion roll shaft are effectively avoided because of compression roller bearing damages, extrusion roll shaft bending causes weld seam dislocation, joint welding, lack of penetration mass defect.2, owing to having changed the welding manner of compression roller, to four roller compression rollers compared with two roller compression roller force analysis, the stressed obvious minimizing of the each compression roller of four roller compression rollers, therefore the wearing and tearing of each compression roller greatly reduce, service life of roll extends.(1) two roller compression roller changes into after four roller compression rollers, and 600～700 tons of replacing compression roller bearings of the every production of 114 unit extend to about 3500 tons and change a bearing.Save 7 hours production times, reduced the frequency of changing because of compression roller bearing during welded tube is produced, thoroughly solved the welding tube quality defect causing because of extrusion roll shaft bending.(2) use after four roller extruding, compression roller wearing and tearing greatly reduce, and 2000～2500 tons of welded tubes of the every production of two roller compression rollers just must be changed, and four roller compression rollers are produced 4500～5000 tons and changed a compression roller top roll.Roller consumption obviously reduces.(3) use after four roller extruding, owing to having reduced the replacing number of times of compression roller bearing and compression roller, reduced the downtime of unit; improve accordingly the operating efficiency that welded tube is produced; reduced workman's labour intensity, the lumber recovery of welded tube also improves accordingly simultaneously, and production cost also reduces.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is main TV structure schematic diagram of the present utility model.
The specific embodiment
A kind of improved ERW unit compression roller device, as shown in Figure 1, be included in the horizontal compression roller 7 in two of left and right of installing on holder, the external diameter of the upper periphery edge of two horizontal compression rollers 7 is less than the external diameter of its underpart outer peripheral edges, and the holder end face middle part above horizontal compression roller is vertically installed with an inverted trapezoidal regulating block 3 by adjusting screw 1; A moving slide board 4 is being set respectively on the holder of these regulating block both sides, on two moving slide boards 4, by adjusting screw 2, a upper compression roller 5 is installed respectively, all curved of the outer peripheral face of two upper compression rollers 5, the bottom of two upper compression rollers 5 contacts respectively with by the end face of Coiling Welded Pipe 6.
Claims (1)
1. an improved ERW unit compression roller device, be included in the horizontal compression roller in two of left and right of installing on holder, it is characterized in that: the external diameter of the upper periphery edge of two horizontal compression rollers is less than the external diameter of its underpart outer peripheral edges, the holder end face middle part above horizontal compression roller is vertically installed with an inverted trapezoidal regulating block by adjusting screw; A moving slide board is being set respectively on the holder of these regulating block both sides, on two moving slide boards, by adjusting screw, a upper compression roller is installed respectively, all curved of the outer peripheral face of two upper compression rollers, the bottom of two upper compression rollers contacts respectively with by the end face of Coiling Welded Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617559.XU CN203599701U (en) | 2013-10-09 | 2013-10-09 | Improved straight seam pipe welding unit extrusion roller device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617559.XU CN203599701U (en) | 2013-10-09 | 2013-10-09 | Improved straight seam pipe welding unit extrusion roller device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599701U true CN203599701U (en) | 2014-05-21 |
Family
ID=50712402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617559.XU Expired - Fee Related CN203599701U (en) | 2013-10-09 | 2013-10-09 | Improved straight seam pipe welding unit extrusion roller device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711782A (en) * | 2018-07-14 | 2020-01-21 | 大连冶金工具厂有限公司 | Extrusion roller hole pattern of high-frequency welded pipe rolling mill |
-
2013
- 2013-10-09 CN CN201320617559.XU patent/CN203599701U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110711782A (en) * | 2018-07-14 | 2020-01-21 | 大连冶金工具厂有限公司 | Extrusion roller hole pattern of high-frequency welded pipe rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |