CN210586374U - Three-roller type roughing mill for narrow strip steel without producing step - Google Patents
Three-roller type roughing mill for narrow strip steel without producing step Download PDFInfo
- Publication number
- CN210586374U CN210586374U CN201920979696.5U CN201920979696U CN210586374U CN 210586374 U CN210586374 U CN 210586374U CN 201920979696 U CN201920979696 U CN 201920979696U CN 210586374 U CN210586374 U CN 210586374U
- Authority
- CN
- China
- Prior art keywords
- roll
- section
- roller
- diameter
- thin
- 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.)
- Withdrawn - After Issue
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 6
- 208000002193 Pain Diseases 0.000 abstract 1
- 235000009537 plain noodles Nutrition 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses a three-roller type roughing mill for narrow band steel that does not produce step belongs to steel rolling technical field, and the main plain barreled that is the plain noodles is constituteed to the shaft of this three-roller type roughing mill's three roller, is applicable to the pass requirement of rough rolling narrow band steel on the one hand, and on the other hand is when stinging the steel to one side, and is different with slotted shaft, can effectively avoid the steel billet to be bitten the limit portion of pass and produce the step, also avoids the roll axial float because of limit portion atress produces simultaneously. When the roller is cut, only the roller bodies of the middle roller and the lower roller need to be cut, and the flat roller bodies are mainly used for cutting, so that the cutting difficulty is greatly reduced, the hole pattern cutting is simplified, and the efficiency is greatly improved.
Description
Technical Field
The utility model relates to a steel rolling equipment, concretely relates to do not produce three-roller type roughing mill for ribbon steel of step.
Background
The hot rolling of narrow strip generally adopts three-roller section mill as roughing mill, need in the rolling process to walk three times at certain roughing mill to and fro. Because no steel moving device is arranged, the steel is bitten obliquely, so that the billet is bitten to the edge of the pass to generate steps. Meanwhile, during rolling, due to the fact that the load is large, the roller can be stressed to generate axial movement, and steps can be generated, so that the subsequent finish rolling and the steel quality are affected.
In addition, as shown in fig. 1, the current roughing mill has a complicated hole pattern compared with the roughing rolling of narrow strip steel, which results in a difficult turning process and high cost.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome prior art's defect, the utility model discloses a do not produce three-roller type roughing mill for ribbon steel of step altogether, this roughing mill can not produce the step when rolling ribbon steel.
The technical scheme is as follows: the utility model discloses a do not produce three-roller type roughing mill for ribbon steel of step, including last roller, middle roll and the lower roll of arranging from top to bottom in proper order, the roll body length of going up roller, middle roll and lower roll is unanimous, its characterized in that, the roll body of going up roller is the flat roll body; the roller body of the middle roller is provided with a roller diameter retaining section, a first roller diameter reducing section and a middle roller thin roller section which are sequentially connected, the roller diameter retaining section and the middle roller thin roller section are both flat roller bodies, the roller diameter retaining section is arranged close to the operation side of the rolling mill and occupies 1/3 of the length of the roller body, the middle roller thin roller section is arranged close to the transmission side of the rolling mill, and the roller diameter of the first roller diameter reducing section is gradually reduced from the roller diameter retaining section to the middle roller thin roller section; the roll body of the lower roll is provided with a lower roll thick roll section, a second roll diameter reducing section and a lower roll thin roll section which are sequentially connected, the lower roll thick roll section and the lower roll thin roll section are flat roll bodies, the lower roll thick roll section is arranged close to the operation side of the rolling mill and occupies 1/3 of the length of the roll body, the lower roll thin roll section is arranged close to the transmission side of the rolling mill, and the second roll diameter reducing section is gradually reduced from the lower roll thick roll section to the roll diameter of the lower roll thin roll section.
And the roll surface of the first roll diameter reducing section and the roll surface of the roll diameter retaining section form an included angle of 30 degrees.
And the roll surface of the second roll diameter reducing section and the roll surface of the lower roll thick roll section form an included angle of 30 degrees.
Has the advantages that: the roll body of the three rolls of the three-roll type rough rolling mill mainly forms a plain flat roll body, so that the roll body is suitable for the pass requirement of rough rolling narrow strip steel on the one hand, and on the other hand, when steel is obliquely bitten, the roll body is different from a grooved roll body, so that a billet can be effectively prevented from being bitten into the edge of the pass to generate steps, and meanwhile, the axial movement of the roll caused by the stress of the edge is also avoided. When the roller is cut, only the roller bodies of the middle roller and the lower roller need to be cut, and the flat roller bodies are mainly used for cutting, so that the cutting difficulty is greatly reduced, the hole pattern cutting is simplified, and the efficiency is greatly improved.
Drawings
FIG. 1 is a common hole pattern structure of a three-roll roughing mill in the prior art;
fig. 2 shows the hole pattern structure of the three-roll roughing mill of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses combine the rolling characteristics of ribbon steel, to current roughing mill for rough rolling ribbon steel say the caliber comparatively complicated, and sting the steel to one side and can make the steel billet by being bitten the limit portion of caliber therefore produce the step to the problem that the load of increase roll made its axial float provides a three-roller type roughing mill for ribbon steel that does not produce the step.
As shown in figure 1, the three-roller roughing mill comprises an upper roller 1, a middle roller 2 and a lower roller 3 which are sequentially arranged from top to bottom, wherein the roller bodies of the upper roller 1, the middle roller 2 and the lower roller 3 are consistent in length and are all manufactured by adopting fittings with the same size.
The upper roller 1 passes through one pass, so the original roller diameter is adopted, and the roller body adopts a flat roller body.
The 1/3 roller body length of the middle roller 2 close to the operation side of the rolling mill is the roller diameter reserving section 21, which is consistent with the roller diameter of the upper roller 1, and a flat roller body with the original roller diameter is also adopted. The 2/3 roller body length of the middle roller 2 near the transmission side of the rolling mill is the first roller diameter reducing section 22 and the middle roller thin roller section 23. The first roll diameter reducing section 22 reduces the roll diameter from the roll diameter retaining section 21 to the middle roll thin roll section 23, the roll diameter of the middle roll thin roll section 23 can be determined according to the roll diameter of the upper roll 1 and by combining the roll proportion required in the rolling process, and the middle roll thin roll section 23 of the flat roll body can be turned according to the determined roll diameter.
The roll body of the lower roll 3 is provided with a lower roll thick roll section 31, a second roll diameter reducing section 32 and a lower roll thin roll section 33 which are connected in sequence. The lower roll thick section 31 and the lower roll thin section 33 are also flat roll bodies, the lower roll thick section 31 is arranged close to the operation side of the rolling mill and occupies 1/3 of the length of the roll bodies, the lower roll thin section 33 is arranged close to the transmission side of the rolling mill, and the second roll diameter reducing section 32 reduces the roll diameter from the lower roll thick section 31 to the lower roll thin section 33. The roll diameter of the lower roll thick section 31 can be conveniently determined according to the roll diameter of the roll diameter retaining section 21 of the middle roll 2 and the roll ratio required in the rolling process, and similarly, the roll diameter of the lower roll thin section 33 can be determined according to the roll diameter of the middle roll thin section 23 and the roll ratio required in the rolling process, and turning is carried out according to the determined roll diameter.
In this embodiment, the roll surface of the first roll diameter reducing section 22 is turned to form an edge transition region having an included angle of 30 ° with the roll surface of the roll diameter retaining section 21, and the roll surface of the second roll diameter reducing section 32 is also turned to form an edge transition region having an included angle of 30 ° with the roll surface of the lower roll diameter rough roll section 31, so as to realize slow transition, and further avoid stress generated by transition of the steel billet between the flat roll surfaces of different roll diameters when the steel is obliquely bitten.
In addition, smooth chamfers are ground on the edges of the roll bodies of the upper roll 1, the middle roll 2 and the lower roll 3, the hole pattern of the roughing mill is further improved, all factors which can generate steps are eliminated, and the rolled narrow strip steel does not generate steps.
Claims (5)
1. A three-roller type rough rolling mill for narrow strip steel without steps comprises an upper roller (1), a middle roller (2) and a lower roller (3) which are sequentially arranged from top to bottom, wherein the roller bodies of the upper roller (1), the middle roller (2) and the lower roller (3) are consistent in length, and the three-roller type rough rolling mill is characterized in that the roller body of the upper roller (1) is a flat roller body; the roll body of the middle roll (2) is provided with a roll diameter retaining section (21), a first roll diameter reducing section (22) and a middle roll thin roll section (23) which are sequentially connected, the roll diameter retaining section (21) and the middle roll thin roll section (23) are both flat roll bodies, the roll diameter retaining section (21) is arranged close to the operation side of the rolling mill and occupies 1/3 of the length of the roll body, the middle roll thin roll section (23) is arranged close to the transmission side of the rolling mill, and the first roll diameter reducing section (22) is gradually reduced from the roll diameter retaining section (21) to the roll diameter of the middle roll thin roll section (23); the roll body of the lower roll (3) is provided with a lower roll thick roll section (31), a second roll diameter reducing section (32) and a lower roll thin roll section (33) which are connected in sequence, the lower roll thick roll section (31) and the lower roll thin roll section (33) are flat roll bodies, the lower roll thick roll section (31) is arranged close to the operation side of a rolling mill and occupies 1/3 of the length of the roll body, the lower roll thin roll section (33) is arranged close to the transmission side of the rolling mill, and the second roll diameter reducing section (32) is gradually reduced from the lower roll thick roll section (31) to the lower roll thin roll section (33).
2. The roughing mill of three-high type for narrow strip without generating steps according to claim 1, wherein said roll diameter retaining section (21) has a roll diameter corresponding to that of said upper roll (1).
3. The roughing mill of the three-high type for a narrow strip without a step according to claim 1, wherein the roll surface of said first tapered roll diameter section (22) is at an angle of 30 ° to the roll surface of said roll diameter retaining section (21).
4. The roughing mill of the three-high type for narrow strip steel without creating steps according to claim 3, characterized in that the roll surface of said second tapered roll section (32) is at an angle of 30 ° to the roll surface of said roughing lower roll section (31).
5. A three-roll roughing mill for narrow strip without generating steps according to any of claims 1 to 4 characterized in that the barrel edges of said upper (1), middle (2) and lower (3) rolls are provided with smooth chamfers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920979696.5U CN210586374U (en) | 2019-06-26 | 2019-06-26 | Three-roller type roughing mill for narrow strip steel without producing step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920979696.5U CN210586374U (en) | 2019-06-26 | 2019-06-26 | Three-roller type roughing mill for narrow strip steel without producing step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210586374U true CN210586374U (en) | 2020-05-22 |
Family
ID=70716210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920979696.5U Withdrawn - After Issue CN210586374U (en) | 2019-06-26 | 2019-06-26 | Three-roller type roughing mill for narrow strip steel without producing step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210586374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280593A (en) * | 2019-06-26 | 2019-09-27 | 南京钢铁股份有限公司 | The ribbon steel for not generating step determines method with three roll shape roughing mills and its pass |
-
2019
- 2019-06-26 CN CN201920979696.5U patent/CN210586374U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280593A (en) * | 2019-06-26 | 2019-09-27 | 南京钢铁股份有限公司 | The ribbon steel for not generating step determines method with three roll shape roughing mills and its pass |
| CN110280593B (en) * | 2019-06-26 | 2024-08-13 | 南京钢铁股份有限公司 | Three-roll roughing mill for narrow strip steel without step and hole pattern determining method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103822081B (en) | Horizontal Varying Thickness Plates band and preparation method thereof | |
| CN100467147C (en) | Method for rolling large-size square steel by single machine frame without groove | |
| CN102615138B (en) | Method for manufacturing titanium pipe | |
| CN103272845B (en) | Hot rolling process of small-bore ultra-thin-wall seamless steel tube | |
| CN101190442A (en) | Production process of flat-bulb steel | |
| US20090145193A1 (en) | Method for producing ultra thin wall metallic tube by cold rolling method | |
| CN210586374U (en) | Three-roller type roughing mill for narrow strip steel without producing step | |
| CN105363782A (en) | Stretch-reducing mill working set roll pass | |
| CN104353668A (en) | Production line for rolling hollow steel and rolling forming production method for hollow steel | |
| CN109663831A (en) | A method of producing small-bore Steel Pipe For Bearing | |
| CN105436232B (en) | High-quantity hafnium rod manufacturing method | |
| US8448488B2 (en) | Flat wire manufacturing method of manufacturing flat wire for ring gear | |
| CN101579702B (en) | New technique for producing high alloy steel high-end pipe by adopting cross rolling elongation technology | |
| CN201186286Y (en) | Roller caliber structure for avoiding goffer produced on surface of large size hot-rolling round steel | |
| CN204620715U (en) | A kind of system being applicable to production in enormous quantities multiple section shaped metal wire rod | |
| KR20090067442A (en) | Rod type steel manufacturing method | |
| WO2015141211A1 (en) | Production method for seamless metal tube | |
| CN110280593B (en) | Three-roll roughing mill for narrow strip steel without step and hole pattern determining method thereof | |
| US4007617A (en) | Method of rolling metal blanks | |
| CN204159642U (en) | For the production line of rolling cored steel | |
| CN107297390A (en) | A kind of four-high mill milling round steel technique | |
| CN204700057U (en) | A kind of pipe mill substitutes disc guiding device with guide agency when producing light-wall pipe | |
| CN205146877U (en) | Stretch reducing mill work unit roll pass | |
| CN203917392U (en) | For controlling the backing roll of thin copper belt material template quality | |
| CN110991078A (en) | Working roll shape design method capable of reducing axial force |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200522 Effective date of abandoning: 20240813 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200522 Effective date of abandoning: 20240813 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |