CN202621555U - High-frequency straight seam welded steel pipe sizing equipment - Google Patents
High-frequency straight seam welded steel pipe sizing equipment Download PDFInfo
- Publication number
- CN202621555U CN202621555U CN 201220238971 CN201220238971U CN202621555U CN 202621555 U CN202621555 U CN 202621555U CN 201220238971 CN201220238971 CN 201220238971 CN 201220238971 U CN201220238971 U CN 201220238971U CN 202621555 U CN202621555 U CN 202621555U
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- China
- Prior art keywords
- steel pipe
- reducing mill
- roll gap
- mill stand
- week
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Abstract
The utility model discloses high-frequency straight seam welded steel pipe sizing equipment, which comprises at least two sizing frames, wherein each sizing frame is formed by four rollers around a steel pipe; a roller gap is formed between the two adjacent rollers; and the corresponding roller gaps on at least two sizing frames are staggered in the circumferential direction of the steel pipe.
Description
Technical field
The utility model relates to the Machining Technology field, relates in particular to a kind of high-frequency straight seam welded pipe sizing apparatus.
Background technology
4 frames that roll is formed up and down of serving as reasons as shown in Figure 1, promptly " sizing " frame generally has the identical reducing mill stand of 4 shelf structures to come the shaping to the outer diameter of steel pipes size on the unit of producing high-frequency straight seam welded pipe.In the steel pipe's production process, in order to guarantee the size of outer diameter of steel pipes, these 4 rolls must be to steel pipe extruding adjustment; In this process; Impression just appears in the roll gap place of roll and roll (like the A place among Fig. 1) easily, because of the roll gap of 4 reducing mill stands on same straight line, so produce impression on the steel pipe just relatively seriously; The steel pipe because of this section roll gap place is not out of shape by roll pressed yet, and the phenomenon of straight flange also appears in steel pipe easily.In addition, when producing high-frequency straight seam welded pipe, if sheet material is harder, under the also thicker situation of thickness, scratching appears in roll gap place steel tube surface between roll and the roll easily.
Summary of the invention
The technical problem that (one) will solve
The technical problem that the utility model will solve is: a kind of high-frequency straight seam welded pipe sizing apparatus is provided, alleviates roll on the reducing mill stand to the impression of steel pipe.
(2) technical scheme
For addressing the above problem; The utility model provides a kind of high-frequency straight seam welded pipe sizing apparatus; Comprise at least two reducing mill stands; Each reducing mill stand is made up of four rolls that are located in the steel pipe periphery, is formed with roll gap between adjacent two rolls, and roll gap corresponding at least two reducing mill stands is in the setting of upwards staggering in the week of steel pipe.
Preferably, in said at least two reducing mill stands, roll gap corresponding on the reducing mill stand of adjacent setting is in the setting of upwards staggering in the week of steel pipe; Corresponding roll gap upwards overlaps in the week of steel pipe and is provided with on the reducing mill stand that is provided with at interval.
Preferably; Said sizing apparatus comprises four reducing mill stands; Wherein first reducing mill stand upwards overlaps setting with the roll gap of the 3rd reducing mill stand in the week of steel pipe; Corresponding roll gap upwards overlaps in the week of steel pipe and is provided with on second reducing mill stand and the 4th reducing mill stand, and roll gap corresponding on said first reducing mill stand and second reducing mill stand is in the setting of upwards staggering in the week of steel pipe.
Preferably, said roll is the smooth transition surface setting of internal diameter greater than said outer diameter of steel pipes near the edge of roll gap.
(3) beneficial effect
The utility model will at least two on the reducing mill stands corresponding roll gap upwards staggering setting the week of steel pipe, make impression that roll gap produces on steel pipe not point-blank, and then make roll also alleviate the impression of steel pipe.
The utility model roll is the face contact near the contacting between steel pipe and the roll edge that be arranged so that of roll gap part smooth transition surface, makes that the roll edge is difficult for the steel pipe periphery is produced impression, and more difficult generation scratches the phenomenon of steel pipe.
Description of drawings
Fig. 1 is the structural representation of reducing mill stand in the prior art;
Fig. 2 is the structural representation of the utility model embodiment first and the 3rd reducing mill stand;
Fig. 3 is the structural representation of the utility model embodiment second and the 4th reducing mill stand;
Fig. 4 is the local enlarged diagram at B place among Fig. 3;
The sketch map that roll gap staggered when Fig. 5 overlapped for the utility model embodiment Fig. 2 and Fig. 3;
Wherein: 1: roll; 2: roll gap; 3: the first reducing mill stands; 4: the second reducing mill stands; 5: steel pipe; 6: smooth transition surface.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated as follows.
Embodiment one:
Present embodiment has been put down in writing a kind of high-frequency straight seam welded pipe sizing apparatus; Comprise at least two reducing mill stands; Each reducing mill stand is made up of four rolls that are located in the steel pipe periphery; Be formed with roll gap between adjacent two rolls, roll gap corresponding at least two reducing mill stands is in the setting of upwards staggering in the week of steel pipe.
In the present embodiment, in said at least two reducing mill stands, roll gap corresponding on the reducing mill stand of adjacent setting is in the setting of upwards staggering in the week of steel pipe; Corresponding roll gap upwards overlaps in the week of steel pipe and is provided with on the reducing mill stand that is provided with at interval.
Embodiment two:
As shown in Figures 2 and 3; Present embodiment has been put down in writing a kind of high-frequency straight seam welded pipe sizing apparatus; Said sizing apparatus comprises four reducing mill stands, and each reducing mill stand is made up of four rolls 1 that are located in steel pipe 5 peripheries, is formed with roll gap 2 between adjacent two rolls 1.
Wherein first reducing mill stand 3 upwards overlaps setting with the roll gap 2 of the 3rd reducing mill stand in the week of steel pipe 5, and in the present embodiment, the structure of first reducing mill stand 3 and the 3rd reducing mill stand is identical; Corresponding roll gap 2 upwards overlaps in the week of steel pipe 5 and is provided with on second reducing mill stand 4 and the 4th reducing mill stand, and in the present embodiment, the structure of second reducing mill stand 4 and the 4th reducing mill stand is identical; Roll gap 2 corresponding on said first reducing mill stand 3 and second reducing mill stand 4 is in the setting (like Fig. 2, Fig. 3 and shown in Figure 5) of upwards staggering in the week of steel pipe 5.
As shown in Figure 4, in the present embodiment, said roll 1 is smooth transition surface 6 settings of internal diameter greater than said steel pipe 5 external diameters near the edge of roll gap 2.
The utility model has alleviated the impression of roll to steel pipe, and is not easy to scratch the phenomenon of steel pipe.
Above embodiment only is used to explain the utility model; And be not the restriction to the utility model; The those of ordinary skill in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to the category of the utility model, and the scope of patent protection of the utility model should be defined by the claims.
Claims (4)
1. high-frequency straight seam welded pipe sizing apparatus; Comprise at least two reducing mill stands; Each reducing mill stand is made up of four rolls that are located in the steel pipe periphery; Be formed with roll gap between adjacent two rolls, it is characterized in that, roll gap corresponding at least two reducing mill stands is in the setting of upwards staggering in the week of steel pipe.
2. high-frequency straight seam welded pipe sizing apparatus as claimed in claim 1 is characterized in that, in said at least two reducing mill stands, roll gap corresponding on the reducing mill stand of adjacent setting is in the setting of upwards staggering in the week of steel pipe; Corresponding roll gap upwards overlaps in the week of steel pipe and is provided with on the reducing mill stand that is provided with at interval.
3. high-frequency straight seam welded pipe sizing apparatus as claimed in claim 2; It is characterized in that; Said sizing apparatus comprises four reducing mill stands; Wherein first reducing mill stand upwards overlaps setting with the roll gap of the 3rd reducing mill stand in the week of steel pipe, and corresponding roll gap upwards overlaps in the week of steel pipe and is provided with on second reducing mill stand and the 4th reducing mill stand, and roll gap corresponding on said first reducing mill stand and second reducing mill stand is in the setting of upwards staggering in the week of steel pipe.
4. high-frequency straight seam welded pipe sizing apparatus as claimed in claim 1 is characterized in that, said roll is the smooth transition surface setting of internal diameter greater than said outer diameter of steel pipes near the edge of roll gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238971 CN202621555U (en) | 2012-05-24 | 2012-05-24 | High-frequency straight seam welded steel pipe sizing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220238971 CN202621555U (en) | 2012-05-24 | 2012-05-24 | High-frequency straight seam welded steel pipe sizing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202621555U true CN202621555U (en) | 2012-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220238971 Expired - Lifetime CN202621555U (en) | 2012-05-24 | 2012-05-24 | High-frequency straight seam welded steel pipe sizing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202621555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038921A (en) * | 2019-05-09 | 2019-07-23 | 潘克云 | A kind of welded still pipe sizing straightening process |
-
2012
- 2012-05-24 CN CN 201220238971 patent/CN202621555U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038921A (en) * | 2019-05-09 | 2019-07-23 | 潘克云 | A kind of welded still pipe sizing straightening process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |