CN214391630U - Intermediate roll of six-roll mill - Google Patents
Intermediate roll of six-roll mill Download PDFInfo
- Publication number
- CN214391630U CN214391630U CN202022726589.7U CN202022726589U CN214391630U CN 214391630 U CN214391630 U CN 214391630U CN 202022726589 U CN202022726589 U CN 202022726589U CN 214391630 U CN214391630 U CN 214391630U
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- roll
- section
- roller body
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- effective
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Abstract
The utility model discloses a six-roller mill intermediate roll, which comprises a middle roll body and roll necks at two ends, wherein the roll body comprises an effective roll body section, and the left end and the right end of the effective roll body section are respectively provided with a small roll body left section and a small roll body right section; the diameter of the small roller body left section is equal to that of the small roller body right section and smaller than that of the effective roller body section, and the length of the small roller body left section is equal to that of the small roller body right section and equal to half of the difference between the roller body length and the effective roller body section length. Compared with the prior art, the utility model, it is unreasonable to solve roller type in the middle of the current six high-rolling mill, and roll the poor stability of board control, causes the poor problem of belted steel plate face quality.
Description
Technical Field
The utility model relates to the technical field of strip steel cold rolling equipment manufacturing, in particular to a six-roller mill intermediate roll for cold rolling strip steel.
Background
The middle roll of the existing six-roll mill for cold-rolled strip steel comprises a roll body in the middle and roll necks at two ends, wherein the roll body is provided with an upper roll gap and a lower roll gap which are symmetrically arranged and have S-shaped curves. When the roll gap changing device is used, the roll gap can be continuously changed by moving the rolls in an anti-symmetric manner. However, the adjusting range of the roll gap shape decreases quadratically along with the reduction of the width of the strip steel, which is not beneficial to the shape control of the narrower strip steel of the ultra-wide rolling mill. When the ultra-wide rolling mill produces narrower strip steel, the problems that the control stability of the plate shape of the rolling mill is poor, the difference between the roughness attenuation speed of the edge part of the strip steel and the attenuation speed of the middle part of the strip steel is large, the quality of the plate surface of the strip steel plate is finally influenced, and the like exist.
Disclosure of Invention
The utility model aims to solve the problem that a roller in the middle of six rolling mills is provided to it is unreasonable to solve roller type in the middle of the current six rolling mills, and roll plate control stability is poor, causes the poor problem of belted steel plate face quality.
In order to solve the above problem, the technical scheme of the utility model is that: the middle roller of the six-roller mill comprises a middle roller body and roller necks at two ends, wherein the roller body comprises an effective roller body section, and the left end and the right end of the effective roller body section are respectively provided with a small roller body left section and a small roller body right section; the diameter of the small roller body left section is equal to the diameter of the small roller body right section and smaller than the diameter of the effective roller body section, and the length of the small roller body left section is equal to the length of the small roller body right section, which is smaller than the length of the effective roller body section and equal to half of the difference between the roller body length and the effective roller body section length.
In the above technical solution, a more specific solution may be: the diameter of the effective roll body ranges from 620 mm to 700 mm.
Further: the diameters of the left section of the small roller body and the right section of the small roller body are 4 mm smaller than the diameter of the effective roller body.
Further: the length of the effective roller body section is 1600 mm.
Further: the length of the left section of the small roller body and the length of the right section of the small roller body are both 425 millimeters.
Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:
the intermediate roll of the six-roll mill adopts the sectional design of the roll body, and the diameter of the small roll body section is smaller than the step-type large and small roll bodies of the effective roll body section, so that the intermediate roll can better control the plate shape without moving the roll to splice a symmetrical step-type in the rolling process of an upper mill, the plate shape control capability of the mill is obviously improved, the difference between the roughness attenuation speed of the edge part of the plate surface and the attenuation speed of the middle part of strip steel is improved to a certain extent, and the surface quality and the plate shape of the steel plate of the rolled strip are both improved.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
the labels in the figure are: the roller comprises an effective roller body section 1, a small roller body left section 2, a small roller body right section 3, a left roller neck 4 and a right roller neck 5.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
the intermediate roll of the six-roll mill shown in fig. 1 comprises a roll body in the middle and roll necks at two ends, wherein the left end is a left roll neck 4, the right section is a right roll neck 5, the roll body comprises an effective roll body section 1, and a small roll body left section 2 and a small roll body right section 3 are respectively arranged at two ends of the effective roll body section 1. The diameter D1 of the active roll body section is the same as the roll body diameter D in the prior art, D1= D, D1 is 620 mm, and the length L1 of the active roll body section is 1600 mm. The diameter D2 of the small roller body left section 2 is equal to the diameter D3 of the small roller body right section 3 and is smaller than the diameter D1 of the effective roller body section, D2= D3= D1-h, h is the difference between the diameter of the effective roller body section and the diameter of the small roller body left section or the small roller body right section, h =4 mm, the length L2 of the small roller body left section 2 is equal to the length L3 of the small roller body right section 3 and is equal to half of the difference between the length L of the roller body and the length L1 of the effective roller body section 1, namely L2= L3= (L-L1)/2 = (2450 mm-1600 mm)/2 =425 mm.
The roller body is processed according to the following steps: the roll body is ground to roll shape tolerance through a special cylindrical grinder for the roll, then according to roll shape design requirements, the radius of two ends of the roll body is ground by the grinder to half of the diameter difference between an effective roll body section 1 and a small roll body left section 2 or a small roll body right section 2, namely h/2, namely 2 mm, the actual value of the diameter difference between the effective roll body section 1 and the small roll body left section 2 or the small roll body right section 3 is measured, and if the actual value is less than the theoretical value of 2 mm, the small roll body left section 2 and the small roll body right section 3 are ground to reach the theoretical value of 2 mm.
In other embodiments, the diameter D1 of the effective roll body segment may be any value between 620 mm and 700 mm according to different working conditions.
The intermediate roll of the six-roll mill adopts the sectional design of the roll body, and the diameter of the small roll body section is smaller than the step-type large and small roll bodies of the effective roll body section, so that the intermediate roll can better control the plate shape without moving the roll to splice a symmetrical step-type in the rolling process of an upper mill, the plate shape control capability of the mill is obviously improved, the difference between the roughness attenuation speed of the edge part of the plate surface and the attenuation speed of the middle part of strip steel is improved to a certain extent, and the surface quality and the plate shape of the steel plate of the rolled strip are both improved.
Claims (5)
1. The utility model provides a six rolling mill intermediate roll, includes the roll body in the middle of and the roll neck at both ends, its characterized in that: the roll body comprises an effective roll body section, and the left end and the right end of the effective roll body section are respectively provided with a small roll body left section and a small roll body right section;
the diameter of the small roller body left section is equal to the diameter of the small roller body right section and smaller than the diameter of the effective roller body section, and the length of the small roller body left section is equal to the length of the small roller body right section, which is smaller than the length of the effective roller body section and equal to half of the difference between the roller body length and the effective roller body section length.
2. The six-high mill intermediate roll of claim 1, characterized in that: the diameter of the effective roll body ranges from 620 mm to 700 mm.
3. The six-high mill intermediate roll according to claim 1 or 2, characterized in that: the diameters of the left section of the small roller body and the right section of the small roller body are 4 mm smaller than the diameter of the effective roller body.
4. The six-high mill intermediate roll of claim 3, characterized in that: the length of the effective roller body section is 1600 mm.
5. The six-high mill intermediate roll of claim 4, characterized in that: the length of the left section of the small roller body and the length of the right section of the small roller body are both 425 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022726589.7U CN214391630U (en) | 2020-11-23 | 2020-11-23 | Intermediate roll of six-roll mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022726589.7U CN214391630U (en) | 2020-11-23 | 2020-11-23 | Intermediate roll of six-roll mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214391630U true CN214391630U (en) | 2021-10-15 |
Family
ID=78035106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022726589.7U Expired - Fee Related CN214391630U (en) | 2020-11-23 | 2020-11-23 | Intermediate roll of six-roll mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214391630U (en) |
-
2020
- 2020-11-23 CN CN202022726589.7U patent/CN214391630U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |