CN104785526A - Rolling mill and hollow roller thereof - Google Patents
Rolling mill and hollow roller thereof Download PDFInfo
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- CN104785526A CN104785526A CN201510232849.6A CN201510232849A CN104785526A CN 104785526 A CN104785526 A CN 104785526A CN 201510232849 A CN201510232849 A CN 201510232849A CN 104785526 A CN104785526 A CN 104785526A
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- roll
- cooling pipe
- supporting component
- hollow
- radiating tube
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Abstract
The invention discloses a hollow roller. The hollow roller comprises a roller body and roll necks which are arranged at the two ends of the roller body, the roller body is in a hollow-shaft shape, support components and a cooling pipeline are arranged in an inner cavity of the roller body, each support component is provided with multiple ends, and all the ends are fixedly connected with the inner wall of the roller body; the cooling pipeline penetrates through and fixed to the support components, and a cooling pipeline inlet and a cooling pipeline outlet are formed in the two ends of the cooling pipeline respectively. According to the hollow roller, the design idea that only a solid structure can be adopted for a roller is revolutionized, the support components are utilized, so that the roller strength is effectively guaranteed, the manufacturing cost is reduced, meanwhile, a hollow structure is combined with the cooling pipeline, the heat dissipation performance of the roller body is greatly improved, and it is facilitated that the dimensional precision and homogeneity of a hot rolled steel plate in the thickness direction are guaranteed. In addition, a rolling mill in which the hollow roller is adopted is further provided.
Description
Technical field
The present invention relates to system for production, be specifically related to milling train and hollow roll thereof.
Background technology
Compared with cold-rolled steel sheet, hot rolled steel plate because having larger price advantage, so application is wider.But hot rolled steel plate exists a fatal defect: profile pattern is poor, dimensional accuracy is lower in a thickness direction, this fatal defects makes hot rolled steel plate cannot replace cold-rolled steel sheet all the time, and can only be applied to the lower occasion of some required precisions.
As everyone knows, in the operation of rolling of hot rolled steel plate, the intensity of roll and form accuracy (dimensional accuracy between roll axle center and each bus of roll and uniformity) are the key factors ensureing dimensional accuracy and uniformity consistency on steel plate thickness direction, only have roll to have higher intensity, just can not produce distortion in the operation of rolling.But due to the special process of hot rolled steel plate rolling in high temperature environments, in the operation of rolling, roll is heated and produces dilatancy is inevitable, and the heat that roll absorbs is more, and temperature raises also more, and dilatancy is also larger.Like this, in continuous rolling process, the size between roll axle center and roll bus can present a kind of trend of gradual change, and then affects hot rolled steel plate dimensional accuracy in a thickness direction and uniformity.
In order to improve roll strength and reduce its generation dilatancy of being heated in the operation of rolling, be all adopt large quality, highdensity solid roller to be rolled at present.Utilizing this roll strength higher and have the characteristic of larger thermal capacitance, making it when absorbing the heat of steel plate blank in the operation of rolling, programming rate is slow, reduces dilatancy, improves elevated temperature strength.Manufacture above-mentioned nip roll method to have: traditional monoblock cast method, overflow or centre spinning, forging method and have employed composite algorithm and the combined method of novel technique.Wherein, composite algorithm mainly comprises continuous casting composite algorithm (CPC method), electroslag remelting welding method, powder metallurgy hot isostatic pressing method, spray-up method and liquid metal Electroslag Cladding method (ESSLM method) etc., and the principle of composite algorithm manufacture roll is to be wrapped in by working layer on prefabricated roller core makes composite roll.Combined method is assembled into by carbide roll ring on the body of roll to make CIC (Cast-In-Carbide) roll.
These roll manufacture methods above, its core be all make roll organize more matter close, to ensure the intensity of roll and good heat conductivility, then improved the thermal capacitance of roll further by the mode strengthening roll radial dimension, thus ensure the appearance and size precision of roll under high-temperature work environment.The roll of these method design is the design philosophy of solid construction, and radial dimension is comparatively large, and therefore manufacturing cost is higher; Simultaneously, although the roll thermal capacitance of large quality is large, but heat-sinking capability is poor, and the thermal capacitance of the bearing block at roll two ends and some transmission devices is less than again roll itself, therefore also need to take cooling measure to bearing block and transmission device, and take into account the hydraulic pressure force application part at roll two ends, thus add the complexity of this body structure of milling equipment.
As can be seen here, being badly in need of looks for another way carries out structure improvement to existing solid roller, under the prerequisite ensureing roll strength, reduces the distortion of roll under high-temperature work environment, significantly reduces the manufacturing cost of roll simultaneously.
Summary of the invention
Technical problem to be solved by this invention be that existing roll quality is large, manufacturing cost is high and make milling equipment because cooling measure causes baroque problem.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is to provide a kind of hollow roll, and comprise the body of roll and be arranged on the roll neck at described body of roll two ends, the described body of roll is hollow shaft-like, and is provided with in the inner chamber of the described body of roll:
Supporting component, it has multiple end, and each described end is all connected and fixed with the inwall of the described body of roll;
Cooling pipe, runs through and is arranged on described supporting component, and the two ends of described cooling pipe are respectively equipped with cooling pipe entrance and cooling pipe outlet.
In such scheme, described supporting component is space network, or described supporting component comprises multiple supporting member, multiple described supporting member is arranged along the axially spaced-apart of the described body of roll, and pitch arrangement mode is: along the described body of roll axial middle ware apart from little, two ends spacing is large.
In such scheme, described supporting member is:
The plane reticular structure that multiple spot on the inwall of the body of roll described in same plane can be fixedly connected with.
In such scheme, described supporting member is:
To be continued in all directions the plane honey comb structure formed by regular hexagon framework.
In such scheme, described cooling pipe comprises many radiating tubes, many described radiating tubes all run through along the axis of the described body of roll and are fixed on described supporting component, and the two ends of many described radiating tubes are connected respectively to described cooling pipe entrance and cooling pipe outlet.
In such scheme, described cooling pipe is made up of a radiating tube, described radiating tube is back and forth arranged in turning back around described supporting component in a zigzag and is fixed on described supporting component vertically in the described body of roll, and return be positioned at described supporting component toward point axial outer end face outside, the two ends of described radiating tube are connected respectively to described cooling pipe entrance and cooling pipe outlet.
In such scheme, described cooling pipe is made up of a radiating tube, described radiating tube axially arranging in the shape of a spiral and being fixed on described supporting component at the described body of roll.
In such scheme, described cooling pipe comprises many radiating tubes and tube connector, each described radiating tube is arranged in each described supporting member in the shape of a spiral, radiating tube in adjacent two described supporting members is connected in series by tube connector, the sidewall of described regular hexagon framework is provided with the through hole passed through for described radiating tube, and described radiating tube is in radial directions successively through regular hexagon framework described in each.
In such scheme, described supporting component and the described body of roll one-body molded, or described supporting component, described cooling pipe and the described body of roll are one-body molded.
Present invention also offers a kind of milling train, comprise frame and cooling device, described frame is provided with organizes roll more, and described roll adopts the hollow roll of said structure, and described cooling pipe entrance is connected with the delivery outlet of described cooling device.
Hollow roll provided by the invention, overturn to only have at present and utilized large quality, high density roll, the mentality of designing of roll elevated temperature deformation could be reduced by the mode improving roll specific heat, Roller Design is become hollow-core construction, and on the body of roll inwall extension supporting assembly, not only effectively ensure the intensity of roll, ensure that the appearance and size precision of roll in the operation of rolling, indirectly improve the accuracy of manufacture of roll, also a saving material, reduce manufacturing cost; And hollow body of roll structure not only contributes to heat radiation, then the heat of roll absorption can be taken away in time efficiently in conjunction with cooling pipe, avoid the intensification dilatancy of roll; Meanwhile, can exempt for the cooling measure of the bearing block at roll two ends and transmission device, reduce further the cost of milling train.
Accompanying drawing explanation
Fig. 1 is the structural representation of hollow core roll of the present invention;
Fig. 2 is the schematic diagram of the embodiment 1 of supporting component in the present invention.
Fig. 3 is the schematic diagram of the embodiment 2 of supporting component in the present invention;
Fig. 4 is the schematic diagram of the embodiment 3 of supporting component in the present invention.
Fig. 5 is the schematic diagram of the 1st kind of cooling pipe structure in the present invention;
Fig. 6 is the schematic front view of the 2nd kind of cooling pipe structure in the present invention;
Fig. 7 is that schematic diagram is looked on a left side for the 2nd kind of cooling pipe structure in the present invention.
Fig. 8 is the schematic diagram of the 3rd kind of cooling pipe structure in the present invention;
Fig. 9 is the schematic diagram of the 4th kind of cooling pipe structure in the present invention.
Figure 10 is A-A schematic diagram in Fig. 9 of the present invention.
Detailed description of the invention
The invention provides a kind of hollow roll, for rolling hot-rolling steel plate, supporting component and cooling pipe is provided with in this hollow roll, on the basis that ensure that structural strength, body of roll expanded by heating can be effectively prevented to be out of shape, the dimensional accuracy of roll between rotation process axis and roll bus is improved greatly, thus ensure that hot rolled steel plate uniformity in a thickness direction.Below in conjunction with detailed description of the invention and Figure of description, the present invention is described in detail.
As shown in Figure 1, hollow roll provided by the invention, comprise the body of roll 1 and be arranged on the roll neck 2 at the body of roll 1 two ends, the two ends of roll neck 2 are provided with roll shaft, and the bearing block by roll shaft hollow roll being installed to milling train is rolled work.
The body of roll 1 is arranged to hollow shaft-like, is provided with supporting component 3 and cooling pipe 4 in its inner chamber.Supporting component 3 has multiple end (end can be considered to arrange along the radial direction of the body of roll 1), and each end is all connected and fixed with the inwall of the body of roll 1.Cooling pipe 4 runs through supporting component 3 along the axis of the body of roll, and is connected with supporting component 3; Can be fixedly connected with between cooling pipe 4 with supporting component 3, also can connect by on-fixed.The two ends of cooling pipe 4 are respectively equipped with cooling pipe entrance 5 and cooling pipe outlet 6, and the both ends of the surface of the body of roll 1 are stretched out in cooling pipe entrance 5 and cooling pipe outlet 6 respectively.Roll neck 2 is fixed on the lateral surface of supporting component.
Supporting component 3, for providing radial support to the body of roll, prevents hollow roll radial deformation in the operation of rolling.Supporting component 3 can adopt the forms such as muscle, plate, Beam or truss, as long as meet support strength, also can adopt other forms of supporting component.Cooling pipe entrance 5 and cooling pipe outlet, for strengthening the heat dispersion of the body of roll 1,6 are connected on cooling device, cooling device just can be utilized to take away the heat of body of roll absorption by cooling pipe 4 respectively, prevent the body of roll 1 to heat up in the course of the work dilatancy.Can certainly adopt such design, only cooling pipe entrance 5 is communicated with the liquid outlet of cooling device, and cooling pipe outlet 6 determines connected relation according to actual needs.
Hollow roll provided by the invention, overturn the traditional design thinking that roll must adopt solid construction, the body of roll adopts hollow-core construction to coordinate supporting component and cooling pipe, on the basis ensureing roll integral rigidity intensity, greatly save manufactured materials on the one hand, improve on the other hand the heat dispersion of roll, reduce roll intensification dilatancy in the course of the work, thus substantially increase the profile pattern of hot rolled steel plate and dimensional accuracy in a thickness direction and uniformity consistency.
Hollow roll provided by the invention, wherein topmost structural design comprises supporting component and cooling pipe two large divisions, is illustrated respectively below.
One, about supporting component.
Main purpose due to supporting component is to provide radial support to the body of roll, and prevent hollow roll pressurized in the operation of rolling from producing radial deformation, therefore, the structural design of supporting component is to improve radial support power for mainly to consider direction.For this reason, supporting component considers the combination two kinds of forms being designed to space network or multiple plane reticular structure, certainly, also can adopt center radiation shape supporting construction, but obviously support strength is less than network structure.
When supporting component adopts the combination of multiple plane reticular structure, supporting component comprises multiple supporting member be arranged in body of roll inner chamber, and multiple supporting member is arranged along the axially spaced-apart of the body of roll.Wherein, this plane reticular structure is the structure that multiple spot on the inwall of the body of roll in same plane can be fixedly connected with.Wherein, be optimal selection by the regular hexagon framework plane honey comb structure formed that continues in all directions.No matter be plane reticular structure or space network, the axis of supporting component place plane and the body of roll is all uneven, and wherein preferably selection is the axes normal of supporting member and the body of roll.
During supporting component employing space network, adopt one group, i.e. the length of supporting component and the axial length adaptation of the body of roll.
Below by way of several specific embodiment, the concrete structure that supporting component can adopt is described.
Embodiment 1:
As shown in Figure 2, supporting component 3 adopts multiple plane reticular textural association, specifically comprise the multiple supporting members be arranged in the body of roll, multiple supporting member is along the uniform setting of axis of the body of roll, namely supporting member adopts the mode be evenly arranged, and ensures that each position on the body of roll can both obtain uniform support force.
Embodiment 2:
As shown in Figure 3, the difference of the present embodiment and embodiment 1 is: the pitch arrangement between multiple supporting member is: along the axial middle ware of the body of roll apart from little, two ends spacing is large, this mode is in order to distribute with the overall stressing conditions adaptation of roll in the operation of rolling, when rolling, the strain of body of roll two ends is stressed less, therefore supporting member distribution is relatively loose, otherwise it is relatively intensive that middle part distributes.
Embodiment 3:
As shown in Figure 4, the difference of the present embodiment and embodiment 1 is: two adjacent supporting member arranged crosswise, and this mode can form the supporting construction of more more stable and stronger, effectively overcomes roll strain, ensures the rigid of roll entirety.
Two, about cooling pipe.
Because the topmost effect of cooling pipe is the heat dispersion improving the body of roll, therefore, its project organization is to increase with the contact area of supporting component in the body of roll as mainly to consider direction.Under this principle, following several structural design can be adopted.
1st kind of cooling pipe structure.
As shown in Figure 5, cooling pipe 4 comprises many radiating tubes, and many radiating tubes all run through supporting component along the axis of the body of roll 1 and are fixed on supporting component, utilizes many radiating tubes to improve heat dispersion.Cooling pipe entrance and cooling pipe outlet is connected respectively to after the two ends convergence of many radiating tubes.
2nd kind of cooling pipe structure.
2nd kind of cooling pipe structure is example as shown in Figure 6, Figure 7, cooling pipe 4 is made up of a radiating tube, radiating tube is back and forth arranged in turning back around supporting component in a zigzag and is fixed on supporting component vertically in the body of roll, and return toward put be positioned at described supporting component axial outer end face outside.Wherein, network structure defines multiple through gap, finally define along the through passage of some on body of roll axial length direction, what cooling pipe came and went successively runs through these passages, cooling pipe is covered with in the gap of roll inside, thus effectively can realizes cooling by cooling fluid.
3rd kind of cooling pipe structure.
As shown in Figure 8, cooling pipe 4 is made up of a radiating tube, arranges in the shape of a spiral vertically and be fixed on supporting component in the body of roll, and namely radiating tube is advanced to the other end of the body of roll by one end spiral of the body of roll.
4th kind of cooling pipe structure.
This structure is applicable to the scheme that supporting component adopts plane reticular textural association, cooling pipe comprises many radiating tubes 7 and tube connector 8, each radiating tube is arranged in each supporting member in the shape of a spiral, and the radiating tube in adjacent two supporting members is connected in series by tube connector.For the plane honey comb structure supporting member shown in Fig. 9, Figure 10, the radiating tube 7 arranged in the shape of a spiral is provided with in each group supporting member, the sidewall of regular hexagon framework is provided with the through hole passed through for radiating tube, radiating tube is in radial directions successively through each regular hexagon framework, radiating tube in adjacent two supporting members is connected in series by tube connector 8, and whole radiating tube 7 and tube connector 8 form cooling pipe 4.In this programme, often organize all corresponding one group of radiating tube on supporting member, adjacent heat radiation pipe is connected in series by tube connector, and ensureing often to organize supporting member and the adjacent body of roll can cooling in time.
Scheme provided by the invention, the body of roll and supporting component integrally casting shaping, also can by shaping to the body of roll, supporting component and cooling pipe integrally casting.
Utilize above-mentioned hollow roll, present invention also offers a kind of milling train that have employed above-mentioned hollow roll, this milling train comprises frame and cooling device, multiple hollow roll transhipment is arranged in frame, cooling pipe entrance is connected with the delivery outlet of cooling device, and cooling pipe outlet is connected with the input port of cooling device.Cooling device adopts existing techniques in realizing, such as: pumping circulation system etc., do not repeat them here.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (10)
1. hollow roll, comprise the body of roll and be arranged on the roll neck at described body of roll two ends, it is characterized in that, the described body of roll is hollow shaft-like, and is provided with in the inner chamber of the described body of roll:
Supporting component, it has multiple end, and each described end is all connected and fixed with the inwall of the described body of roll;
Cooling pipe, runs through and is arranged on described supporting component, and the two ends of described cooling pipe are respectively equipped with cooling pipe entrance and cooling pipe outlet.
2. hollow roll as claimed in claim 1, is characterized in that,
Described supporting component is space network; Or,
Described supporting component comprises multiple supporting member, and multiple described supporting member is arranged along the axially spaced-apart of the described body of roll, and pitch arrangement mode is: along the described body of roll axial middle ware apart from little, two ends spacing is large.
3. hollow roll as claimed in claim 2, it is characterized in that, described supporting member is:
The plane reticular structure that multiple spot on the inwall of the body of roll described in same plane can be fixedly connected with.
4. hollow roll as claimed in claim 3, it is characterized in that, described supporting member is:
To be continued in all directions the plane honey comb structure formed by regular hexagon framework.
5. hollow roll as claimed in claim 1, it is characterized in that, described cooling pipe comprises many radiating tubes, many described radiating tubes all run through along the axis of the described body of roll and are fixed on described supporting component, and the two ends of many described radiating tubes are connected respectively to described cooling pipe entrance and cooling pipe outlet.
6. hollow roll as claimed in claim 1, it is characterized in that, described cooling pipe is made up of a radiating tube, described radiating tube is back and forth arranged in turning back around described supporting component in a zigzag and is fixed on described supporting component vertically in the described body of roll, and return be positioned at described supporting component toward point axial outer end face outside, the two ends of described radiating tube are connected respectively to described cooling pipe entrance and cooling pipe outlet.
7. hollow roll as claimed in claim 1, it is characterized in that, described cooling pipe is made up of a radiating tube, described radiating tube axially arranging in the shape of a spiral and being fixed on described supporting component at the described body of roll.
8. hollow roll as claimed in claim 4, it is characterized in that, described cooling pipe comprises many radiating tubes and tube connector, each described radiating tube is arranged in each described supporting member in the shape of a spiral, radiating tube in adjacent two described supporting members is connected in series by tube connector, the sidewall of described regular hexagon framework is provided with the through hole passed through for described radiating tube, and described radiating tube is in radial directions successively through regular hexagon framework described in each.
9. the hollow roll as described in any one of claim 1-8 item, is characterized in that,
Described supporting component and the described body of roll one-body molded; Or,
Described supporting component, described cooling pipe and the described body of roll are one-body molded.
10. milling train, comprises frame and cooling device, and described frame is provided with organizes roll more, it is characterized in that, described roll adopts the hollow roll as described in claim 1 to 9 any one, and described cooling pipe entrance is connected with the delivery outlet of described cooling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232849.6A CN104785526A (en) | 2015-05-08 | 2015-05-08 | Rolling mill and hollow roller thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232849.6A CN104785526A (en) | 2015-05-08 | 2015-05-08 | Rolling mill and hollow roller thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785526A true CN104785526A (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510232849.6A Pending CN104785526A (en) | 2015-05-08 | 2015-05-08 | Rolling mill and hollow roller thereof |
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| Country | Link |
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| CN (1) | CN104785526A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496286A (en) * | 2019-09-16 | 2021-03-16 | 斯凯孚公司 | Roller body, roller body and method for producing the same |
| CN113020274A (en) * | 2021-02-22 | 2021-06-25 | 山西铄金高温材料科技有限公司 | Internal cooling system capable of uniformly reducing temperature of roller |
| CN114042775A (en) * | 2021-11-23 | 2022-02-15 | 杰森能源技术有限公司 | Metal pipe manufacturing equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB285358A (en) * | 1927-02-12 | 1928-08-02 | Christian Rotzel | Improvements in internally cooled rolls for hot rolling mills |
| CN1101308A (en) * | 1993-10-04 | 1995-04-12 | 河南省中原轧辊厂 | Roller with internal water cooling system and system thereof |
| JPH10235416A (en) * | 1997-02-26 | 1998-09-08 | Toshiba Fa Syst Eng Kk | Roll device incorporated with motor for rolling and rolling device using this roll device |
| CN2461673Y (en) * | 2000-11-06 | 2001-11-28 | 庄河市轧辊厂 | Fluid internally cooling roller |
| RU2270069C1 (en) * | 2004-06-28 | 2006-02-20 | Волгоградский государственный технический университет (ВолгГТУ) | Cooled roll |
| CN201442011U (en) * | 2009-06-24 | 2010-04-28 | 鞍钢股份有限公司 | Tandem-rolling inner-cooling roll cooling water pipe |
| CN203791342U (en) * | 2014-04-28 | 2014-08-27 | 北京中传首高冶金成套设备有限公司 | Water cooling device for heat delivery roller table |
-
2015
- 2015-05-08 CN CN201510232849.6A patent/CN104785526A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB285358A (en) * | 1927-02-12 | 1928-08-02 | Christian Rotzel | Improvements in internally cooled rolls for hot rolling mills |
| CN1101308A (en) * | 1993-10-04 | 1995-04-12 | 河南省中原轧辊厂 | Roller with internal water cooling system and system thereof |
| JPH10235416A (en) * | 1997-02-26 | 1998-09-08 | Toshiba Fa Syst Eng Kk | Roll device incorporated with motor for rolling and rolling device using this roll device |
| CN2461673Y (en) * | 2000-11-06 | 2001-11-28 | 庄河市轧辊厂 | Fluid internally cooling roller |
| RU2270069C1 (en) * | 2004-06-28 | 2006-02-20 | Волгоградский государственный технический университет (ВолгГТУ) | Cooled roll |
| CN201442011U (en) * | 2009-06-24 | 2010-04-28 | 鞍钢股份有限公司 | Tandem-rolling inner-cooling roll cooling water pipe |
| CN203791342U (en) * | 2014-04-28 | 2014-08-27 | 北京中传首高冶金成套设备有限公司 | Water cooling device for heat delivery roller table |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496286A (en) * | 2019-09-16 | 2021-03-16 | 斯凯孚公司 | Roller body, roller body and method for producing the same |
| CN113020274A (en) * | 2021-02-22 | 2021-06-25 | 山西铄金高温材料科技有限公司 | Internal cooling system capable of uniformly reducing temperature of roller |
| CN114042775A (en) * | 2021-11-23 | 2022-02-15 | 杰森能源技术有限公司 | Metal pipe manufacturing equipment |
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Application publication date: 20150722 |