CN116689497A - Steel strip production line is with rolling mill group - Google Patents
Steel strip production line is with rolling mill group Download PDFInfo
- Publication number
- CN116689497A CN116689497A CN202310878434.0A CN202310878434A CN116689497A CN 116689497 A CN116689497 A CN 116689497A CN 202310878434 A CN202310878434 A CN 202310878434A CN 116689497 A CN116689497 A CN 116689497A
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- Prior art keywords
- roller
- extrusion
- cooling
- guide block
- supporting
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 238000005096 rolling process Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 97
- 238000001125 extrusion Methods 0.000 claims description 80
- 239000000498 cooling water Substances 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000003491 array Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 description 11
- 238000005299 abrasion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
- B21B2027/083—Lubricating, cooling or heating rolls internally cooling internally
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The application relates to the technical field of rolling mills, and discloses a rolling mill set for a steel strip production line, which is used for solving the problems of uneven roller wear and serious roller wear after cooling of steel strips.
Description
Technical Field
The application relates to the technical field of rolling mills, in particular to a rolling mill group for a steel strip production line.
Background
The rolling mill is equipment for realizing a metal rolling process, generally refers to equipment for completing the whole process of rolled material production, and comprises main equipment, auxiliary equipment, lifting and transporting equipment, auxiliary equipment and the like, but the rolling mill generally refers to only the main equipment, and the rolling mill is used in the steel strip rolling process.
In the process of rolling the steel strip by using a rolling mill, the steel strip is rolled by mainly using the rollers of the rolling mill, but the steel strip is not fully filled with the whole rollers, but only using the rollers at the middle part to roll the steel strip, after long-time use, the rollers need to be replaced, the middle part of the replaced rollers is severely worn, the wear on the two sides is lighter, the wear on the rollers is uneven, and the resource waste is caused; in addition, in the hot rolling process, the temperature of the steel belt is too high, so that the temperature of the roller is also high, in order to reduce the temperature of the roller, the cooling water is sprayed on the surface of the roller in the conventional mode, however, the cooling water is sprayed on the surface of the roller and simultaneously sprayed on the steel belt, so that the steel belt in a high-temperature state is rapidly cooled, the hardness of the cooled steel belt is increased, and the abrasion of the surface of the roller is increased.
Disclosure of Invention
The application provides a steel strip production line steel rolling mill set, which has the advantages of prolonging the service life of a roller and reducing the abrasion of the roller by a steel strip, and is used for solving the problems of uneven roller abrasion and serious roller abrasion caused by cooling the steel strip.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a steel band is rolling mill group for production line, includes supporting leg and roll, the activity is equipped with the bearing frame on the pull rod in the supporting leg, fixed mounting has support bearing in the bearing frame, two of same altitude support bearing internal fixation cover is equipped with the transmission shaft of roll, its characterized in that: the transmission shaft outside is equipped with: the inner supporting roller is fixedly sleeved at the middle position of the transmission shaft, a sliding groove is formed in the annular array on the outer surface of the inner supporting roller, and a limit strip is slidably arranged in the sliding groove; the outer extrusion roller is movably sleeved on the outer side of the inner support roller, and the inner wall of the outer extrusion roller is fixedly connected with the limit strips; the guide block is movably sleeved on the outer side of the transmission shaft, the side wall of the guide block is fixedly arranged on the bearing seat, an annular guide groove is formed in the end face of the guide block, which is clung to the outer extrusion roller, a sliding ball is slidably arranged in the guide groove, a connecting rod is fixedly arranged on the sliding ball, and one end of the connecting rod is fixedly connected to the end face of the outer extrusion roller.
Further, the connecting rods at the two ends of the extrusion outer roller are on the same straight line.
Further, the guide block is annular, one end face of the guide block is perpendicular to the axis of the guide block and is fixedly arranged on the inner side face of the bearing seat, the other end face of the guide block and the axis of the guide block form an included angle of minus DEG, and the inclined faces of the guide blocks on two sides of the outer roller are opposite in direction.
Further, the annular surface of the guide groove is parallel to the inclined surface of the guide block.
Further, a plurality of cooling grooves are formed between two adjacent sliding grooves on the supporting inner roller, cooling water is filled in the cooling grooves, an extrusion plate is arranged in the cooling grooves in a sliding sealing manner, and the extrusion plate is fixedly arranged on the inner wall of the extrusion outer roller; the inner wall annular arrays at two ends of the extrusion outer roller are provided with a plurality of connecting grooves, the inner annular arrays inside the extrusion outer roller are provided with a plurality of inner cooling holes and outer cooling holes, the inner cooling holes enable the connecting grooves at one end of the extrusion outer roller to be communicated with the cooling grooves at one side of the extrusion plate, and the outer cooling holes enable the connecting grooves at the other end of the extrusion outer roller to be communicated with the cooling grooves at the other side of the extrusion plate; the support inner roller is provided with a connecting hole communicated with the connecting groove; the inner ring of the hydraulic slip ring is fixedly arranged on the end face of the inner supporting roller, the inner ring is communicated with the connecting hole, the outer ring of the hydraulic slip ring is fixedly arranged on the inner wall of the guide block, and the outer ring is fixedly connected with a connecting pipe which is communicated with the circulating cooling water pool.
Further, the length of the cooling groove in the axial direction of the supporting inner roller is longer than the distance of the extrusion outer roller moving in the axial direction of the supporting inner roller; the length of the connecting groove in the axial direction of the extrusion outer roller is greater than the distance of the extrusion outer roller moving in the axial direction of the supporting inner roller.
Further, the inner cooling hole is close to the inner wall of the extrusion outer roller, the outer cooling hole is close to the outer wall of the extrusion outer roller, and the center of the inner cooling hole and the center of the outer cooling hole are not on the same diameter.
The application has the following beneficial effects:
1. according to the rolling mill set for the steel strip production line, the integral roller is changed into the split type, the extrusion outer roller can slide in the axial direction of the supporting inner roller, the guide blocks are arranged on the bearing seats on the two sides of the roller, the sliding balls are embedded in the guide blocks and fixedly connected with the extrusion outer roller through the connecting rods, when rolling operation is carried out, the extrusion outer roller moves back and forth under the action of the guide blocks through the rotation of the roller, the area of steel strip rolled by the extrusion outer roller is increased through the axial movement of the extrusion outer roller, the whole surface of the extrusion outer roller can participate in the steel strip rolling process, and therefore the service life of the extrusion outer roller is prolonged.
2. According to the steel strip production line steel rolling mill provided by the application, the cooling grooves are formed in the inner supporting roller at equal intervals, the extruding plates are arranged in the cooling grooves in a sliding and sealing manner, the extruding plates are fixedly arranged on the inner wall of the outer extruding roller, the extruding plates divide the cooling grooves into two parts, the inner cooling holes and the outer cooling holes are formed in the outer extruding roller, the inner cooling holes and the outer cooling holes are respectively communicated with the cooling grooves on two sides of the extruding plates, cooling water is filled in the cooling grooves, hydraulic slip rings are respectively arranged at two ends of the inner supporting roller, the hydraulic slip rings on two sides are respectively communicated with the inner cooling holes and the outer cooling holes, the other ends of the hydraulic slip rings are communicated with the circulating cooling water tank through connecting pipes, and in operation, the guide blocks enable the outer extruding roller to reciprocate in the axial direction of the inner supporting roller, and drive the extruding plates to slide in the cooling grooves, so that the cooling water in the extruding plates extrude the outer cooling grooves is enabled to enter or be discharged from the inner cooling holes, the outer extruding roller is cooled, the cooling water is prevented from directly contacting the cooling water in a cooling manner from the inner extruding outer roller, the hardness of the steel strip is increased, and the damage to the surface of the steel strip after cooling is reduced.
3. According to the steel strip production line steel rolling machine set, the heat transferred from the extrusion outer roller to the support inner roller and the transmission shaft is further reduced through the double-layer cooling mode of the inner cooling holes and the outer cooling holes, and the high-temperature transmission shaft is prevented from affecting the service life of the support bearing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
The application may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a top view of the present application;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present application;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 3B in accordance with the present application;
FIG. 5 is a schematic view of the internal structure of the roll of the present application;
FIG. 6 is a cross-sectional view taken at C-C of FIG. 5 in accordance with the present application;
fig. 7 is an enlarged view of a partial structure at D in fig. 5 according to the present application.
In the figure: 1. a base; 2. support legs; 201. a pull rod; 3. a bearing seat; 4. a support bearing; 5. a roller; 501. a transmission shaft; 502. supporting the inner roller; 503. extruding the outer roller; 504. a cooling tank; 505. an extrusion plate; 506. an inner cooling hole; 507. an outer cooling hole; 508. a connecting groove; 509. a connection hole; 510. a sliding groove; 511. a limit bar; 6. a guide block; 601. a guide groove; 602. a sliding ball; 603. a connecting rod; 7. a hydraulic slip ring; 701. an inner ring; 702. an outer ring; 8. a connecting pipe; 9. a pressing mechanism.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1, 2 and 3, a steel strip production line rolling mill unit comprises a base 1, supporting legs 2 and rollers 5, wherein four supporting legs 2 are arranged on a rectangular array at the top end of the base 1, pull rods 201 are movably sleeved in the supporting legs 2, two bearing seats 3 are movably sleeved on the pull rods 201 on the same side, a transmission structure for lifting or lowering the bearing seats 3 is movably sleeved on the pull rods 201, a pressing mechanism 9 is fixedly arranged at the top ends of the supporting legs 2, and supporting bearings 4 are fixedly arranged in the bearing seats 3.
Referring to fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, a transmission shaft 501 of a roller 5 is fixedly sleeved in two supporting bearings 4 of the same height, a supporting inner roller 502 is fixedly sleeved in the middle position of the transmission shaft 501, a sliding groove 510 is formed in an annular array on the outer surface of the supporting inner roller 502, a limit bar 511 is slidably mounted in the sliding groove 510, an outer extrusion roller 503 for extruding a steel belt is movably sleeved on the supporting inner roller 502, the inner wall of the outer extrusion roller 503 is fixedly connected with the limit bar 511, the length of the limit bar 511 is the same as the length of the outer extrusion roller 503, the outer extrusion roller 503 is slidably mounted with the supporting inner roller 502, a guide block 6 is fixedly mounted on the inner side surface of a bearing seat 3, the guide block 6 is movably sleeved outside the transmission shaft 501, an annular guide groove 601 is formed in the end surface of the guide block 6, a sliding ball 602 is slidably mounted in the guide groove 601, a connecting rod 603 is fixedly mounted on the sliding ball 602, the other end of the connecting rod 603 is fixedly connected to the end surface of the outer extrusion roller 503, and the connecting rods 603 are on the same straight line.
Referring to fig. 1, 2 and 3, the guide block 6 is circular, one end face of the guide block 6 is perpendicular to the axis of the guide block 6 and is fixedly mounted on the inner side face of the bearing seat 3, the other end face of the guide block 6 forms an included angle of 30-60 ° with the axis of the guide block 6, and the inclined faces of the guide blocks 6 on both sides of the same extrusion outer roller 503 face in opposite directions.
The annular surface of the guide groove 601 is parallel to the inclined surface of the guide block 6, i.e., the lowest end of the guide groove 601 is at the same distance from the inclined surface of the guide block 6. When the sliding balls 602 slide in the guide grooves 601, the sliding balls 602 on both sides can drive the connecting rod 603 and the pressing outer roller 503 to slide in the axial direction of the supporting inner roller 502.
Referring to fig. 3, 4, 5, 6 and 7, a cooling groove 504 is formed between two adjacent sliding grooves 510 on the inner supporting roller 502, a plurality of cooling grooves 504 are formed in the inner supporting roller 502 at equal intervals in the axial direction, when the outer extruding roller 503 slides in the axial direction of the inner supporting roller 502, the cooling groove 504 is always located within the range of the inner wall of the outer extruding roller 503 to ensure the sealing of the cooling groove 504, the cooling groove 504 is filled with cooling water, an extruding plate 505 is mounted in the cooling groove 504 in a sliding sealing manner, the extruding plate 505 is fixedly mounted on the inner wall of the outer extruding roller 503, a plurality of connecting grooves 508 are formed in annular arrays on the inner walls of the two ends of the outer extruding roller 503, the number of the connecting grooves 508 is the same as the number of the sliding grooves 510, a plurality of inner cooling holes 506 and outer cooling holes 507 are formed in the annular array inside the outer extruding roller 503, the inner cooling holes 506 enable the connecting groove 508 at one end of the extrusion outer roller 503 to be communicated with the cooling groove 504 at one side of the extrusion plate 505, the outer cooling holes 507 enable the connecting groove 508 at the other end of the extrusion outer roller 503 to be communicated with the cooling groove 504 at the other side of the extrusion plate 505, the connecting holes 509 communicated with the connecting groove 508 are formed in the support inner roller 502, the hydraulic slip rings 7 are arranged at two ends of the support inner roller 502, each hydraulic slip ring 7 comprises an inner ring 701 and an outer ring 702, the inner ring 701 of each hydraulic slip ring 7 is fixedly arranged on the end face of the support inner roller 502, the inner ring 701 is communicated with the connecting holes 509, the outer ring 702 of each hydraulic slip ring 7 is fixedly arranged on the inner wall of the guide block 6, and the connecting pipe 8 communicated with the circulating cooling water tank is fixedly connected to the outer ring 702.
The length of the cooling groove 504 in the axial direction of the support inner roller 502 is longer than the distance the pressing outer roller 503 moves in the axial direction of the support inner roller 502. When the pressing outer roller 503 drives the pressing plate 505 to slide, it can be ensured that the side wall of the cooling groove 504 does not hinder the pressing plate 505 from sliding.
The length of the connection groove 508 in the axial direction of the pressing outer roller 503 is longer than the distance the pressing outer roller 503 moves in the axial direction of the supporting inner roller 502. When the outer squeeze roll 503 moves axially on the inner support roll 502, the connecting holes 509 on the inner support roll 502 are always communicated with the connecting grooves 508 on the outer squeeze roll 503, so that the cooling water in the cooling grooves 504 can flow through the inner cooling holes 506, the outer cooling holes 507, the connecting grooves 508 and the connecting holes 509.
The inner cooling holes 506 are near the inner wall of the pressing outer roller 503, the outer cooling holes 507 are near the outer wall of the pressing outer roller 503, and the center of the inner cooling holes 506 and the center of the outer cooling holes 507 are not on the same diameter. The inner cooling holes 506 and the outer cooling holes 507 are arranged in a staggered manner, so that the inner cooling holes 506 and the outer cooling holes 507 are prevented from being communicated in a crossed manner, and when the extrusion plate 505 extrudes the cooling water in the cooling groove 504, the cooling water at two sides of the extrusion plate 505 is prevented from flowing through the inner cooling holes 506 and the outer cooling holes 507.
The working principle of the application is as follows:
referring to fig. 1, 2, 3, 4, 5, 6 and 7, during operation of the rolling mill, the strip passes through the anti-run-out mechanism of the rolling mill to enter the intermediate position of the two rolls 5.
The power system of the rolling mill drives the two transmission shafts 501 to rotate relatively, the transmission shafts 501 drive the supporting inner roller 502 and the extruding outer roller 503 to rotate in the same direction, the extruding outer roller 503 drives the connecting rod 603 and the sliding ball 602 to rotate synchronously while the extruding outer roller 503 rotates, the sliding ball 602 is always positioned in the guiding groove 601, and the guiding groove 601 is an inclined groove, so that the sliding ball 602 drives the connecting rod 603 and the extruding outer roller 503 to slide in the axial direction of the supporting inner roller 502, the extruding outer roller 503 rotates for one circle, the extruding outer roller 503 slides back and forth in the axial direction of the supporting inner roller 502 once, and the steel belt is rolled in different positions of the extruding outer roller 503 when the extruding outer roller 503 moves in the axial direction of the supporting inner roller 502 all the time, thereby increasing the working area of the extruding outer roller 503, enabling the outer surface of the extruding outer roller 503 to participate in the steel belt rolling process, and prolonging the service life of the extruding outer roller 503; in addition, the sliding directions of the upper outer extrusion roll 503 and the lower outer extrusion roll 503 are opposite, the friction directions of the two outer extrusion rolls 503 to the steel strip are opposite, the influence of the movement of the outer extrusion rolls 503 to the steel strip is reduced, and the phenomenon of deviation of the steel strip is avoided.
While the extrusion outer roller 503 rolls the steel strip, the extrusion outer roller 503 moves axially on the supporting inner roller 502, the extrusion outer roller 503 drives the extrusion plate 505 to slide in the cooling groove 504, when the extrusion plate 505 slides in the cooling groove 504, the extrusion plate 505 extrudes cooling water on one side of the cooling groove 504, so that cooling water with higher temperature in the cooling groove 504 is discharged from the inner cooling hole 506, the connecting groove 508, the connecting hole 509, the hydraulic slip ring 7 and the connecting pipe 8, meanwhile, the cooling groove 504 on the other side of the extrusion plate 505 forms negative pressure, so that the cooling groove 504 on the other side of the extrusion plate 505 sucks low-temperature cooling water in the cooling water tank through the outer cooling hole 507, the connecting groove 508, the connecting hole 509, the hydraulic slip ring 7 and the connecting pipe 8, and when the low-temperature cooling water enters the cooling groove 504 through the outer cooling hole 507, the low-temperature cooling water cools the extrusion outer roller 503; when the extrusion outer roller 503 moves to the other side of the supporting inner roller 502, cooling water in the cooling groove 504 on one side of the extrusion plate 505 is discharged through the outer cooling holes 507, a certain amount of cooling water is sucked into the cooling groove 504 on the other side of the extrusion plate 505, and the cooling water in the cooling groove 504 circulates once every turn of rotation of the extrusion outer roller 503, so that the extrusion outer roller 503 is cooled, and the cooling water circulates from the inside of the extrusion outer roller 503 to cool the extrusion outer roller 503, so that the cooling water is prevented from directly contacting the steel strip, the phenomenon of hardness increase after the steel strip is cooled is avoided, and the damage of the cooled steel strip to the surface of the extrusion outer roller 503 is reduced; and, the inner cooling holes 506 and the outer cooling holes 507 are inner and outer double-layer cooling, and the inner side and the outer side of the extrusion outer roller 503 are cooled, so that the heat transferred to the support inner roller 502 and the transmission shaft 501 by the extrusion outer roller 503 is further reduced, and the service life of the support bearing 4 is prevented from being influenced by the high-temperature transmission shaft 501.
Claims (7)
1. The utility model provides a steel band is rolling mill group for production line, includes supporting leg (2) and roll (5), the activity is equipped with bearing frame (3) on pull rod (201) in supporting leg (2), fixed mounting has supporting bearing (4) in bearing frame (3), two of same altitude supporting bearing (4) internal fixation cover is equipped with transmission shaft (501) of roll (5), its characterized in that: the outside of the transmission shaft (501) is provided with:
the inner supporting roller (502) is fixedly sleeved at the middle position of the transmission shaft (501), a sliding groove (510) is formed in an annular array on the outer surface of the inner supporting roller (502), and a limit strip (511) is arranged in the sliding groove (510) in a sliding mode;
the outer extrusion roller (503) is movably sleeved outside the inner support roller (502), and the inner wall of the outer extrusion roller (503) is fixedly connected with the limit strip (511);
the guide block (6), guide block (6) movable sleeve locates the transmission shaft (501) outside, the lateral wall fixed mounting of guide block (6) is on bearing frame (3), annular guide slot (601) have been seted up to the terminal surface of extrusion outer roller (503) is hugged closely to guide block (6), slidable mounting has slip ball (602) in guide slot (601), fixed mounting has connecting rod (603) on slip ball (602), the one end fixed connection of connecting rod (603) is on the terminal surface of extrusion outer roller (503).
2. A steel strip production line rolling train according to claim 1, characterized in that the connecting rods (603) at both ends of the outer squeeze roll (503) are on the same straight line.
3. The steel strip production line steel rolling mill set according to claim 1, wherein the guide block (6) is annular, one end face of the guide block (6) is perpendicular to the axis of the guide block (6) and is fixedly mounted on the inner side face of the bearing seat (3), the other end face of the guide block (6) forms an included angle of 30-60 degrees with the axis of the guide block (6), and inclined faces of the guide blocks (6) on two sides of the same extrusion outer roller (503) face opposite directions.
4. A steel strip production line rolling train as claimed in claim 3, characterized in that the annular surface of the guide groove (601) is parallel to the inclined surface of the guide block (6).
5. A steel strip production line steel rolling mill set according to claim 3, wherein a plurality of cooling grooves (504) are formed between two adjacent sliding grooves (510) on the inner supporting roller (502), the cooling grooves (504) are filled with cooling water, an extrusion plate (505) is mounted in the cooling grooves (504) in a sliding sealing manner, and the extrusion plate (505) is fixedly mounted on the inner wall of the outer extrusion roller (503);
the inner wall annular arrays at two ends of the extrusion outer roller (503) are provided with a plurality of connecting grooves (508), the inner annular arrays of the extrusion outer roller (503) are provided with a plurality of inner cooling holes (506) and outer cooling holes (507), the inner cooling holes (506) enable the connecting grooves (508) at one end of the extrusion outer roller (503) to be communicated with the cooling grooves (504) at one side of the extrusion plate (505), and the outer cooling holes (507) enable the connecting grooves (508) at the other end of the extrusion outer roller (503) to be communicated with the cooling grooves (504) at the other side of the extrusion plate (505);
a connecting hole (509) communicated with the connecting groove (508) is formed in the supporting inner roller (502);
an inner ring (701) of a hydraulic slip ring (7) is fixedly arranged on the end face of the supporting inner roller (502), the inner ring (701) is communicated with the connecting hole (509), an outer ring (702) of the hydraulic slip ring (7) is fixedly arranged on the inner wall of the guide block (6), and a connecting pipe (8) communicated with the circulating cooling water tank is fixedly connected to the outer ring (702).
6. The steel strip production line rolling mill train according to claim 5, wherein the length of the cooling groove (504) in the axial direction of the support inner roller (502) is longer than the distance the extrusion outer roller (503) moves in the axial direction of the support inner roller (502); the length of the connecting groove (508) in the axial direction of the extrusion outer roller (503) is larger than the distance that the extrusion outer roller (503) moves in the axial direction of the supporting inner roller (502).
7. A steel strip production line rolling mill train according to claim 5, wherein the inner cooling holes (506) are located close to the inner wall of the outer pinch roll (503), the outer cooling holes (507) are located close to the outer wall of the outer pinch roll (503), and the centers of the inner cooling holes (506) and the outer cooling holes (507) are not located on the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310878434.0A CN116689497B (en) | 2023-07-18 | 2023-07-18 | Steel strip production line is with rolling mill group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310878434.0A CN116689497B (en) | 2023-07-18 | 2023-07-18 | Steel strip production line is with rolling mill group |
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| Publication Number | Publication Date |
|---|---|
| CN116689497A true CN116689497A (en) | 2023-09-05 |
| CN116689497B CN116689497B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310878434.0A Active CN116689497B (en) | 2023-07-18 | 2023-07-18 | Steel strip production line is with rolling mill group |
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| SU171368A1 (en) * | А. А. Морозов , О. А. Сарычев | MILL COLD ROLLING PIPE WITH ROLLERS | ||
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| GB9002554D0 (en) * | 1990-02-06 | 1990-04-04 | Cooper Roller Bearings Company | Steel mill roll |
| JPH0357403U (en) * | 1989-10-09 | 1991-06-03 | ||
| CN103801558A (en) * | 2014-01-27 | 2014-05-21 | 胜利油田康贝石油工程装备有限公司 | Method and device for machining trapezoidal slit of slotted pipe for petroleum |
| RU2726532C1 (en) * | 2019-12-02 | 2020-07-14 | Акционерное общество «ЕВРАЗ Нижнетагильский металлургический комбинат» (АО «ЕВРАЗ НТМК») | Vertical roll braking device of rolling mill universal stand |
-
2023
- 2023-07-18 CN CN202310878434.0A patent/CN116689497B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU171368A1 (en) * | А. А. Морозов , О. А. Сарычев | MILL COLD ROLLING PIPE WITH ROLLERS | ||
| SU768495A2 (en) * | 1978-05-24 | 1980-10-07 | Уральский ордена Трудового Красного Знамени политехнический институт им.С.М.Кирова | Working stand for multistrand tube cold rolling mill |
| JPH0357403U (en) * | 1989-10-09 | 1991-06-03 | ||
| GB9002554D0 (en) * | 1990-02-06 | 1990-04-04 | Cooper Roller Bearings Company | Steel mill roll |
| CN103801558A (en) * | 2014-01-27 | 2014-05-21 | 胜利油田康贝石油工程装备有限公司 | Method and device for machining trapezoidal slit of slotted pipe for petroleum |
| RU2726532C1 (en) * | 2019-12-02 | 2020-07-14 | Акционерное общество «ЕВРАЗ Нижнетагильский металлургический комбинат» (АО «ЕВРАЗ НТМК») | Vertical roll braking device of rolling mill universal stand |
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| Publication number | Publication date |
|---|---|
| CN116689497B (en) | 2023-10-20 |
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