CN214767783U - Roller assembly and rolling mill set for rolling deformed steel - Google Patents
Roller assembly and rolling mill set for rolling deformed steel Download PDFInfo
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- CN214767783U CN214767783U CN202120863092.1U CN202120863092U CN214767783U CN 214767783 U CN214767783 U CN 214767783U CN 202120863092 U CN202120863092 U CN 202120863092U CN 214767783 U CN214767783 U CN 214767783U
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Abstract
The utility model provides a roll assembly and rolling mill group for rolling deformed steel for roll assembly of rolling deformed steel, include: the device comprises an upper roller, a lower roller, a left roller and a right roller, wherein the left roller is provided with a left forming surface, the right roller is provided with a right forming surface, the upper roller is provided with an upper forming surface, the lower roller is provided with a lower forming surface, and the left forming surface, the right forming surface, the upper forming surface and the lower forming surface jointly enclose a cavity; the upper roller and the lower roller can respectively move along the up-down direction; the left roller and the right roller can move along the left and right directions respectively. The special-shaped steel die can be suitable for special-shaped steel with similar shapes but different sizes, and can be compensated online when the cavity wall of the cavity is abraded, production does not need to be stopped, the roller does not need to be disassembled, production efficiency is guaranteed, and purchase cost of the roller is saved.
Description
Technical Field
The utility model belongs to the technical field of hot rolling shaped steel, concretely relates to roll assembly and rolling mill group for rolling deformed steel.
Background
The rolling process commonly adopted aiming at deformed steel at present is as follows: and finally rolling the rectangular blank or the square blank into the deformed steel with the target shape through a plurality of box-shaped holes, splitting holes, pre-cavity and finished product holes.
Taking the forklift beam profile steel as an example, the forklift beam profile steel is steel for manufacturing a forklift fork frame beam and is supported on a bearing member of a forklift, so that the requirements on the performance, the dimensional accuracy and the surface quality of the forklift beam profile steel are high. As shown in fig. 1, the cross section of the forklift beam section steel is composed of a right trapezoid area 1 and a rectangular area 2, and is made of deformed steel. The width of the right-angle trapezoidal region 1 is H1Thickness of B1 Rectangular area 2 has a width H and a thickness B. As shown in fig. 2, a rolling assembly of a prior art shape rolling mill includes upper and lower rolling rolls 3 and 4, the upper and lower rolling rolls 3 and 4 forming a cavity matching the shape of a target shape, and a steel bar is rolled into a desired shape while passing through the cavity.
In most forklift beam section steels with different specifications,thickness B of right trapezoid area 11And width H1Similarly, the deformed steel rolling mill can be universally used for most forklift beam section steels with different specifications only by enabling the width H and the thickness B of the rectangular area 2 of the forklift beam section steel to be adjustable. In the forklift beam profile steel rolled by the deformed steel rolling mill adopting the upper rolling roll 3 and the lower rolling roll 4 in the prior art, the adjustment range of the width H and the thickness B of a rectangular area is small, so that the production efficiency of producing multi-specification forklift beam profile steel in a workshop is low, and the rolling roll investment is large. When the rolling rolls are worn, only the rolling rolls can be replaced, which results in a large consumption of the rolling rolls and further increases the cost.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the deformed steel rolling mill unit among the above-mentioned prior art, low, the problem with high costs of production efficiency.
In order to achieve the above object, the present invention provides the following technical solutions: roll assembly for rolling deformed steel, comprising:
the roller assembly comprises an upper roller, a lower roller, a left roller and a right roller, wherein the left roller is provided with a left forming surface, the right roller is provided with a right forming surface, the upper roller is provided with an upper forming surface, the lower roller is provided with a lower forming surface, and the left forming surface, the right forming surface, the upper forming surface and the lower forming surface jointly enclose a cavity;
the upper roller and the lower roller can respectively move along the up-and-down direction;
the left roller and the right roller can move along the left and right directions respectively.
Further, at least one of the left molding surface and the right molding surface is non-planar.
Furthermore, the left forming surface is a non-plane surface and comprises a first plane, a second plane and an inclined plane;
the first plane and the second plane are parallel and extend along the up-down direction, and the inclined plane is connected with the first plane and the second plane.
Further, a movable space is formed between the left roller and the right roller, and the upper roller and the lower roller move up and down in the movable space.
Further, the second plane is located at the lower left of the first plane, and the lower roller moves in a space between the second plane and the right roller.
The rolling mill set comprises at least two rolling mills, and each rolling mill comprises a frame and a roll assembly arranged on the frame; the method comprises the following steps: the roller assembly comprises an upper roller, a lower roller, a left roller and a right roller, wherein the left roller is provided with a left forming surface, the right roller is provided with a right forming surface, the upper roller is provided with an upper forming surface, the lower roller is provided with a lower forming surface, and the left forming surface, the right forming surface, the upper forming surface and the lower forming surface jointly enclose a cavity;
the upper roller and the lower roller can respectively move along the up-and-down direction;
the left roller and the right roller can move along the left and right directions respectively.
Further, at least one of the left molding surface and the right molding surface is non-planar.
Furthermore, the left forming surface is a non-plane surface and comprises a first plane, a second plane and an inclined plane;
the first plane and the second plane are parallel and extend along the up-down direction, and the inclined plane is connected with the first plane and the second plane.
Further, a movable space is formed between the left roller and the right roller, and the upper roller and the lower roller move up and down in the movable space.
Further, the second plane is located at the lower left of the first plane, and the lower roller moves in a space between the second plane and the right roller.
Further, the rolling mills are arranged in sequence on a rolling production line;
the distance between the left forming surface and the right forming surface in the roll assembly of each rolling mill is different, and one rolling mill is selected to be put into rolling operation during steel rolling.
Further, the number of said rolling mills in a mill train is not more than five.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect at least:
1) the special-shaped steel die can be suitable for special-shaped steel with similar shapes but different sizes, and can be compensated online when the cavity wall of the cavity is abraded, production does not need to be stopped, the roller does not need to be disassembled, production efficiency is guaranteed, and purchase cost of the roller is saved.
2) At least one of the left forming surface and the right forming surface is a non-plane surface, so that the rolling of the deformed steel can be well adapted.
3) Can adapt to the rolling of the forklift beam profile steel.
4) When the inclined plane is worn, the online adjustment can be realized.
5) The supporting force applied to the deformed steel is dispersed to the lower forming surface with a larger area, and the abrasion speed of the lower forming surface is reduced.
6) When the deformed steel with different shapes is rolled, the rolling mills need to be switched instead of the production lines of the rolling mills, so that the occupied area is small, the switching speed is high, and the production efficiency is high.
Drawings
FIG. 1 is a schematic structural view of a forklift beam profile;
FIG. 2 is a schematic view of a prior art roll assembly of a rolling mill train;
fig. 3 is a schematic view of the structure of a roll assembly according to an embodiment of the rolling mill train of the present invention.
In the figure: 1. a right angle trapezoidal portion; 2. a rectangular portion; 3. an upper rolling roll; 4. a lower rolling roll; 5. an upper roller; 51. forming a molding surface; 6. a lower roller; 61. a lower molding surface; 7. a left molding surface; 71. a first plane; 72. a second plane; 73. a bevel; 8. a right roller; 81. a right molding surface; 9. and (5) rolling the left roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The utility model discloses a specific embodiment of rolling mill train: the rolling mill set is used for rolling the deformed steel and comprises at least two rolling mills, the number of the rolling mills can be adjusted according to the type and the specification of the deformed steel to be rolled by a rolling production line, and each rolling mill set is preferably provided with three to five rolling mills. The distance between the left forming surface 7 and the right forming surface 81 in the roll assembly of each rolling mill is different, and one rolling mill is selected to be put into rolling operation when rolling steel.
The rolling mill comprises a frame and a roll assembly (hereinafter referred to as a roll assembly) arranged on the frame for rolling the deformed steel. The roll assembly comprises an upper roll 5, a lower roll 6, a left roll 9 and a right roll 8, wherein the left roll 9 is provided with a left forming surface 7, the right roll 8 is provided with a right forming surface 81, the upper roll 5 is provided with an upper forming surface 51, the lower roll 6 is provided with a lower forming surface 61, and the left forming surface 7, the right forming surface 81, the upper forming surface 51 and the lower forming surface 61 jointly enclose a cavity; the upper roll 5 and the lower roll 6 are movable in the vertical direction, and the left roll 9 and the right roll 8 are movable in the horizontal direction. According to the shape difference of target deformed steel, select the roll assembly that has different profiled surface, the die cavity that different roll assemblies enclose is different, and the profiled bar of how many shapes has how many sets of roll assembly promptly that the profiled bar of how many shapes is different in the profiled bar of upper roll 5, lower roll 6, left roll 9 and right roll 8, the utility model discloses can't illustrate one by one to the steel rolling subassembly of rolling fork truck crossbeam shaped steel is exemplified and is explained.
As shown in fig. 3, a movable space is formed between the left roll 9 and the right roll 8, and the upper roll 5 and the lower roll 6 move up and down in the movable space. The left forming surface 7 is a non-plane surface, and the left forming surface 7 comprises a first plane surface 71, a second plane surface 72 and a bevel surface 73; the first plane 71 and the second plane 72 are parallel to each other and extend in the up-down direction, and the inclined surface 73 connects the first plane 71 and the second plane 72. The second plane 72 is located at the lower left of the first plane 71, and the lower roller 6 moves in the space between the second plane 72 and the right roller 8, that is, the cavity wall of the cavity has a groove, and the groove has a right trapezoid shape and is surrounded by the inclined surface 73, a part of the second plane 72 and a part of the lower molding surface 61.
The cross-sectional shape of the cavity corresponds to the cross-sectional shape of the forklift beam profile, and includes a right-angled trapezoidal region and a rectangular region, and the boundary of the right-angled trapezoidal region is defined by a portion of the second plane 72, the inclined surface 73, and a portion of the lower forming surface 61. The boundary of the rectangular area is defined by the upper forming surface 51, a portion of the lower forming surface 61, the left forming surface 7 and a portion of the first plane 71.
When the roll assembly generates abrasion, the online compensation can be realized, specifically:
if the upper forming surface 51 is worn by 1mm, so that the upper forming surface 51 moves upwards by 1mm, the thickness B of a rolled finished product is 1mm thicker than the standard thickness, at the moment, the upper roller 5 only needs to move downwards by 1mm to compensate for the worn 1mm of the upper forming surface 51, the thickness B of the rectangular part 2 of the forklift beam profile steel is controlled to return to the standard size again, and therefore the roller assembly can be adjusted on line without stopping rolling and removing the roller assembly to repair a cavity, and subsequent continuous rolling is not influenced. When the die cavity is worn to cause the size of the rolled piece to exceed the standard again, the position of the upper roller 5 can be adjusted again to compensate the wear.
If the lower forming surface 61 is worn by 1mm, resulting in a downward movement of 1mm of the lower forming surface 61, the finished product thicknesses B and B are obtained1Will be 1mm thicker than the standard, at this moment only need move 1mm lower horizontal roller 1 up and can compensate 1mm of lower profiled surface 61 wearing and tearing, control fork truck crossbeam shaped steel's thickness B of rectangular part 2 and right trapezoid part 1's B1And the roller assembly returns to the standard size again, so that the roller assembly can be adjusted on line without stopping rolling and removing the roller to repair the cavity, and subsequent continuous rolling is not influenced. When the size of the rolled piece exceeds the standard due to the abrasion of the cavity, the position of the lower horizontal roller can be adjusted again to compensate the abrasion.
If the right forming surface 81 is worn by 1mm, the width H of a rolled finished product is 1mm larger than the standard, at the moment, the worn 1mm of the right roller 8 can be compensated only by moving the right roller 8 by 1mm to the left (or moving the left roller 9 by 1mm to the right), the width H of the rectangular part 2 of the forklift beam section steel is controlled to be the standard size again, so that the rolling is not stopped, the rollers are dismounted to repair the cavity, the roller assembly can be adjusted on line, the subsequent continuous rolling is not influenced, and when the size of a rolled piece exceeds the standard due to the abrasion of the cavity, the position of the right roller 8 or the left roller 9 can be adjusted again to compensate the abrasion.
If the first plane 71, the second plane 72 and the inclined plane 73 are worn by 1mm, the width H of a rolled finished product is 1mm larger than the standard, at the moment, the width H of the first plane 71, the second plane 72 and the inclined plane 73 can be compensated by only moving the left roller 9 rightwards by 1mm (or moving the right roller 8 leftwards by 1mm), the width H of the rectangular part 2 of the forklift beam section steel is controlled to be the standard size again, so that the rolling is not stopped, the rollers are dismounted to repair the cavity, the roller assembly can be adjusted on line, the subsequent continuous rolling is not influenced, and when the size of a rolled piece exceeds the standard due to the abrasion of the cavity, the position of the left roller 9 or the right roller 8 can be adjusted again to compensate the abrasion.
If the bevel 73 is worn by 1mm, the thickness of the rolled product is B1Will be 1mm larger than the standard, and at this time only the upper roll 5 and the lower roll 6 need to be moved up 1mm at the same time, to compensate for the 1mm wear of the bevel 73. Controlling thickness B of right trapezoid part 1 of forklift beam section steel1The rolling mill is controlled to the standard size again, so that the rolling mill does not need to be stopped and the roller is removed for repairing the cavity, the roll assembly can be adjusted on line, the subsequent continuous rolling is not influenced, and when the cavity is worn, the rolled piece B is rolled1Once again, the upper and lower rolls 5, 6 can be adjusted simultaneously to compensate for the wear of the inclined plane 73.
Meanwhile, the right trapezoid area needs to be rolled, and the width H and the thickness B of the rectangular area are different. The rolling production can be realized by the intervention of replacing other rolling mills (the upper forming surface 51 and the lower forming surface 61 of the roll assembly of the rolling mill after replacement are matched with the width H of the target forklift beam section steel) in the rolling mill train, and the structure is simple and the cost is low.
When a plurality of forklift beam section steel with small size difference is rolled, the sizes of corresponding parts of the cavity can be adjusted by controlling the positions of the upper roller 5, the lower roller 6, the left roller 9 and the right roller 8, so that the sizes of all parts of the target forklift beam section steel are adapted. The thickness B of the rectangular region can be reduced by moving the upper roll 5 downward, moving the lower roll 6 upward, or performing both actions simultaneously (the adjustment range is large when both actions are performed simultaneously). The adjustment range is large when the upper roll 5 moves upward, the lower roll 6 moves downward, or both actions are simultaneously performed) the thickness B of the rectangular region can be increased, wherein the lower roll 6 moves up and down not only to adjust the thickness B of the rectangular region but also to adjust the thickness B of the right-angled trapezoidal region1。
The left roller 9 moves rightwards, the right roller 8 moves leftwards or both actions are carried out simultaneously, so that the width H of the rectangular area can be reduced. The width of the rectangular area can be increased by moving the left roller 9 to the left, moving the right roller 8 to the right, or both. The upper roller 5 and the lower roller 6 move upwards simultaneously by the same stroke, so that the thickness B of the rectangular area can be reduced without changing the thickness B of the rectangular area1. The upper roller 5 and the lower roller 6 move downwards simultaneously by the same stroke, and the thickness B of the rectangular area can be increased without changing the thickness B of the rectangular area1。
The utility model discloses a roll assembly's for rolling deformed steel's roll assembly's specific embodiment is the same with the structure of roll assembly in above-mentioned roll unit's specific embodiment, no longer gives unnecessary details.
To sum up, the utility model discloses a roll unit spare and rolling mill frame for rolling deformed steel compares prior art and has following technological effect:
1) the special-shaped steel die can be suitable for special-shaped steel with similar shapes but different sizes, and can be compensated online when the cavity wall of the cavity is abraded, production does not need to be stopped, the roller does not need to be disassembled, production efficiency is guaranteed, and purchase cost of the roller is saved.
2) At least one of the left forming surface and the right forming surface is a non-plane surface, so that the rolling of the deformed steel can be well adapted.
3) Can adapt to the rolling of the forklift beam profile steel.
4) When the inclined plane is worn, the online adjustment can be realized.
5) The supporting force applied to the deformed steel is dispersed to the lower forming surface with a larger area, and the abrasion speed of the lower forming surface is reduced.
6) When the deformed steel with different shapes is rolled, the rolling mills need to be switched instead of the production lines of the rolling mills, so that the occupied area is small, the switching speed is high, and the production efficiency is high.
The foregoing is considered as illustrative and not restrictive, and all changes coming within the spirit and principles of the invention are intended to be embraced therein.
Claims (8)
1. Roll assembly for rolling deformed steel, characterized in that it comprises:
the roller assembly comprises an upper roller, a lower roller, a left roller and a right roller, wherein the left roller is provided with a left forming surface, the right roller is provided with a right forming surface, the upper roller is provided with an upper forming surface, the lower roller is provided with a lower forming surface, and the left forming surface, the right forming surface, the upper forming surface and the lower forming surface jointly enclose a cavity;
the upper roller and the lower roller can respectively move along the up-and-down direction;
the left roller and the right roller can move along the left and right directions respectively.
2. A roll assembly for rolling a profiled bar according to claim 1 wherein at least one of the left and right forming surfaces is non-planar.
3. A roll assembly for rolling a profiled bar according to claim 2 wherein the left profiled surface is non-planar and comprises a first plane, a second plane and a chamfer;
the first plane and the second plane are parallel and extend along the up-down direction, and the inclined plane is connected with the first plane and the second plane.
4. A roll assembly for rolling profiled steel according to claim 3 wherein a moving space is formed between the left roll and the right roll, the upper roll and the lower roll moving up and down in the moving space.
5. A roll assembly for rolling a profiled bar according to claim 4 wherein the second plane is located to the left and below the first plane, the lower roll being movable in the space between the second plane and the right roll.
6. The rolling mill unit is characterized by comprising at least two rolling mills, wherein each rolling mill comprises a frame and a roll assembly arranged on the frame; the roll assembly is used for rolling profiled steel according to any one of claims 1 to 5.
7. A rolling mill train according to claim 6, characterized in that the rolling mills are arranged one after the other on a rolling line;
the distance between the left forming surface and the right forming surface in the roll assembly of each rolling mill is different, and one rolling mill is selected to be put into rolling operation during steel rolling.
8. A mill train according to claim 6, wherein the number of said mills in a mill train is no more than five.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120863092.1U CN214767783U (en) | 2021-04-25 | 2021-04-25 | Roller assembly and rolling mill set for rolling deformed steel |
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| CN202120863092.1U CN214767783U (en) | 2021-04-25 | 2021-04-25 | Roller assembly and rolling mill set for rolling deformed steel |
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| CN214767783U true CN214767783U (en) | 2021-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227375A1 (en) * | 2021-04-25 | 2022-11-03 | 山东钢铁股份有限公司 | Roll assembly for rolling special-shaped steel and a rolling mill train |
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2021
- 2021-04-25 CN CN202120863092.1U patent/CN214767783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227375A1 (en) * | 2021-04-25 | 2022-11-03 | 山东钢铁股份有限公司 | Roll assembly for rolling special-shaped steel and a rolling mill train |
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