CN2261895Y - Stepped support roll for cold mill - Google Patents
Stepped support roll for cold mill Download PDFInfo
- Publication number
- CN2261895Y CN2261895Y CN 95230973 CN95230973U CN2261895Y CN 2261895 Y CN2261895 Y CN 2261895Y CN 95230973 CN95230973 CN 95230973 CN 95230973 U CN95230973 U CN 95230973U CN 2261895 Y CN2261895 Y CN 2261895Y
- Authority
- CN
- China
- Prior art keywords
- roll
- contact
- stairstepping
- segment
- support roller
- 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.)
- Expired - Fee Related
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model provides a stepped support roll for a cold mill, which forms a stepped roll shape. The roll body of the support roll is composed of strip steel, a roll contact section (1), a stepped section (2) and a roll neck (3), wherein, the length l of the stepped section (2), the length L of the roll body, the width B of the strip steel and the gaps delta except the width B of the strip steel can satisfy the relationship 1=(L-B-2 delta) /2; the step height h and the diameter D of the contact section (1) of the roll body can satisfy the relationship h=0.4%D; a transition section H=2 mm is arranged between the contact section (1) and the stepped section. The utility model can effectively eliminate harmful contact between a supporting roll and a work roll of a four roll cold rolling mill.
Description
The utility model belongs to the support roller of used for cold rolling mill, particularly the stairstepping support roller.
Conventional cold-rolling mill support roller is plain-barreled roll, is cylindrical no convexity support roller.Under the effect of draught pressure P and bending roller force f, during elastic flattening between research work roller and support roller, find in working roll and harmful contact zone of existence, support roller contact zone greater than strip width.Because draught pressure P and bending roller force f all act on the roll neck place, be applied on the band steel by harmful contact zone, this harmful contact can influence of rolled pressure and effect of bending roller force, has also increased the wearing and tearing and the damage of this part roll simultaneously.
Six-roll type HC milling train by simultaneously relative to or opposite shaft orientation move intermediate calender rolls and can eliminate harmful contact zone between working roll and the support roller effectively.But HC milling equipment complexity, control system are huge, the roll poor stability, and investment is big, is difficult for promoting.
The purpose of this utility model provides a kind of used for cold rolling mill stairstepping support roller with stairstepping roll shape, to eliminate the harmful contact zone between working roll and the support roller.
According to the novel used for cold rolling mill stairstepping support roller of this reality, to be formed by contact-segment ladder section and roll neck, the length of ladder section depends on the gap beyond support roller barrel length, strip width and the strip width.
According to the utility model, the ladder height of ladder section depends on the support roller diameter.
According to the utility model, to ladder Duan Youyi changeover portion, its length is fixed from contact-segment.
When this stairstepping support roller roll shape of processing, processing ovality and two ends tapering all there is strict demand.
Adopt support roller of the present utility model, can obviously improve the plate shape of cold-reduced sheet, reduce roll consumption significantly.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is a used for cold rolling mill stairstepping support roller schematic diagram of the present utility model.
Fig. 2 is the A partial enlarged drawing of Fig. 1.
As shown in Figure 1, the body of roll of stepped support roll for cold mill of the present utility model by Band steel and roll contact-segment (1), be positioned at stairstepping section (2) and the body of roll of contact-segment (1) both sides The roll neck at two ends (3) form the length 1 of every offset trapezoidal sections (2) and the support roller body of roll Should satisfy following relation between the clearance delta beyond length L, strip width B, the strip width: 1=(L-B-2 Δ)/2.
As shown in Figure 2, should satisfy the pass between the diameter D of ladder height h and contact-segment (1) Be h=4 ‰ D, between contact-segment (1) and the ladder section (2) a changeover portion H arranged, its value is H=2mm.
Embodiment
The 1700mm cold-rolling mill of certain factory, support roller barrel length L=1700mm establishes strip width B=1000mm, the clearance delta=50mm beyond the strip width, the length 1=300mm of then every offset trapezoidal sections (2).Support roller contact-segment diameter D=1300～1220mm (maximum gauge and minimum diameter), ladder height h=0.53～0.48mm.
The processing request body of roll ovality of this stairstepping roll shape is less than 0.01mm, and the two ends tapering is less than 0.01mm.
Use this cold-rolling mill support roller with stairstepping roll shape, eliminated the harmful contact between 4-roller cold rolling mill support roller and the working roll effectively, improved cold-rolled steel sheet plate shape precision, the wearing and tearing and the consumption of roll have been reduced, and not needing increases investment and equipment, is applicable to all 4-roller cold rolling mills.
Claims (3)
1, a kind of used for cold rolling mill stairstepping support roller of being formed by the body of roll and roll neck (3), it is characterized in that the body of roll is by band steel and roll contact-segment (1), being positioned at the stairstepping section (2) of these contact-segment both sides and the roll neck (3) at body of roll two ends forms, the length 1 of every offset trapezoidal sections (2) and support barrel length L, strip width B, should satisfy following relation: 1=(L-B-2 Δ)/2 between the clearance delta beyond the strip width, should satisfy following relation: h=4 ‰ D between the diameter D of ladder height h and contact-segment (1), between contact-segment (1) and the stairstepping section (2) a changeover portion H=2mm be arranged.
2, according to the used for cold rolling mill stairstepping support roller of claim 1, it is characterized in that at described support roller barrel length L=1700mm, during strip width B=1000mm, get strip width clearance delta=50mm in addition, stairstepping segment length 1=300mm.
3, according to the used for cold rolling mill stairstepping support roller of claim 1, it is characterized in that when described body of roll contact-segment diameter D=1300～1220mm, trapezoidal height h=0.53～0.48mm, body of roll ovality is less than 0.01mm, and the two ends tapering is less than 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230973 CN2261895Y (en) | 1995-04-27 | 1995-04-27 | Stepped support roll for cold mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230973 CN2261895Y (en) | 1995-04-27 | 1995-04-27 | Stepped support roll for cold mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2261895Y true CN2261895Y (en) | 1997-09-10 |
Family
ID=33875695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230973 Expired - Fee Related CN2261895Y (en) | 1995-04-27 | 1995-04-27 | Stepped support roll for cold mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2261895Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552906A (en) * | 2013-11-21 | 2014-02-05 | 武钢集团昆明钢铁股份有限公司 | Double-roller hoisting device suitable for multi-roller rolling mill |
| CN112605129A (en) * | 2020-11-23 | 2021-04-06 | 广西钢铁集团有限公司 | Intermediate roll of six-roll mill |
-
1995
- 1995-04-27 CN CN 95230973 patent/CN2261895Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103552906A (en) * | 2013-11-21 | 2014-02-05 | 武钢集团昆明钢铁股份有限公司 | Double-roller hoisting device suitable for multi-roller rolling mill |
| CN103552906B (en) * | 2013-11-21 | 2016-05-11 | 武钢集团昆明钢铁股份有限公司 | A kind of two roll handling apparatus that are suitable for multi-roll mill |
| CN112605129A (en) * | 2020-11-23 | 2021-04-06 | 广西钢铁集团有限公司 | Intermediate roll of six-roll mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |