CN217727075U - Cooling type continuous casting roller - Google Patents
Cooling type continuous casting roller Download PDFInfo
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- CN217727075U CN217727075U CN202221190539.4U CN202221190539U CN217727075U CN 217727075 U CN217727075 U CN 217727075U CN 202221190539 U CN202221190539 U CN 202221190539U CN 217727075 U CN217727075 U CN 217727075U
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Abstract
The utility model discloses a cooling type continuous casting roller belongs to continuous casting roller technical field. The cooling type continuous casting roll comprises a mandrel and a roll sleeve which are in clearance fit, a first jacket and a second jacket which are respectively close to two ends of the mandrel are arranged between the mandrel and the roll sleeve, a first flow guide hole and a second flow guide hole are arranged in the first jacket and the second jacket, and a flow guide groove communicated with the first flow guide hole and the second flow guide hole is arranged between the first jacket and the second jacket; a first axial hole, a first radial hole and a second radial hole are formed in the mandrel, the first radial hole is communicated with the first flow guide hole, and the second radial hole is communicated with the second flow guide hole; a second axial hole is arranged in the roller sleeve, and two ends of the second axial hole are respectively communicated with the first flow guide hole and the second flow guide hole. The utility model discloses a cooling type continuous casting roller not only can flow through the inside of dabber and roller shell, can flow through the structure surface of dabber and roller shell moreover to dispel the heat when having realized the inside of dabber and roller shell and structure surface.
Description
Technical Field
The utility model belongs to the technical field of the continuous casting roller, especially, relate to a cooling type continuous casting roller.
Background
The quality and life of a continuous casting roll, which is one of the main components of a continuous casting machine, directly affects the product cost, the quality of a cast slab, and the operating rate of the continuous casting machine. The continuous casting roller directly contacts with a high-temperature casting blank and is in thermal radiation of the casting blank for a long time, failure conditions such as thermal stress fatigue crack, deformation and the like are easily generated, and accordingly the surface of the roller body and the casting blank are adhered to each other to cause blank stagnation, and the continuous casting roller is damaged. Therefore, cooling of the continuous casting rolls is required to reduce the surface temperature of the continuous casting rolls.
At present, two ends of a mandrel are generally provided with water through holes, and the water through holes are communicated with a roll surface cooling structure on the outer side wall of the mandrel, so that cooling water takes away heat of a roll surface when flowing through the roll surface cooling structure, and timely heat dissipation of a continuous casting roll is realized.
However, the heat inside the roller sleeve needs to be transferred to the roller surface cooling structure to be absorbed and taken away by cooling water, the heat transfer distance is long, the heat dissipation effect of the roller sleeve is poor, the service life is affected, and the water through holes are designed at the two ends of the mandrel, so that the cooling water circulates at the two ends of the mandrel, and the heat dissipation effect of the middle section of the mandrel is poor.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a cooling type continuous casting roller for solve the poor technical problem of radiating effect of current cooling continuous casting roller.
Realize the utility model discloses the technical scheme of purpose as follows:
in an embodiment of the present invention, there is provided a cooling type continuous casting roll, comprising a mandrel and a roll shell which are in clearance fit;
a first clamping sleeve and a second clamping sleeve are arranged between the mandrel and the roller sleeve, and the first clamping sleeve and the second clamping sleeve are respectively close to two ends of the mandrel; a first guide hole and a second guide hole are arranged in the first jacket and the second jacket along the radial direction, a guide groove is arranged between the first jacket and the second jacket, and two ends of the guide groove are respectively communicated with the first guide hole and the second guide hole;
a first axial hole, a first radial hole and a second radial hole are arranged in the mandrel, the first radial hole is close to one end of the mandrel, the second radial hole is close to the other end of the mandrel, the first radial hole is communicated with the first flow guide hole, the second radial hole is communicated with the second flow guide hole, and the first radial hole and the second radial hole are communicated with the first axial hole;
and a second axial hole is formed in the roller sleeve, and two ends of the second axial hole are respectively communicated with the first flow guide hole and the second flow guide hole.
In the preferred implementation of the embodiment of the present invention, the first jacket and the second jacket are respectively provided with a sealing ring at both axial ends.
In the preferred implementation of the embodiment of the present invention, the extending direction of the diversion trench is parallel to the axis of the mandrel.
In the preferred implementation of the embodiment of the present invention, the roller sleeve is connected with the mandrel key.
In the preferred implementation of the embodiment of the present invention, the inner wall of the diversion trench is provided with a heat conducting coating.
In a preferred implementation manner of the embodiment of the present invention, the material of the first jacket and the second jacket is cemented carbide.
Compared with the prior art, the utility model discloses advantage or beneficial effect include at least:
the embodiment of the utility model discloses a cooling type continuous casting roller, which is characterized in that a first clamping sleeve and a second clamping sleeve which are close to two ends of a mandrel are arranged between the mandrel and a roller sleeve, a first flow guide hole and a second flow guide hole which are along the radial direction are respectively arranged in the first clamping sleeve and the second clamping sleeve, and a flow guide groove which is communicated with the first flow guide hole and the second flow guide hole is arranged between the first clamping sleeve and the second clamping sleeve; simultaneously, set up first axial hole and be close to the first radial hole and the second radial hole at dabber both ends respectively in the inside of dabber to communicate first radial hole and first water conservancy diversion hole, second radial hole and second water conservancy diversion hole intercommunication respectively, and communicate first radial hole, second radial hole all with first axial hole, and set up in the roller shell along second axial hole, and communicate first water conservancy diversion hole and second water conservancy diversion hole with the both ends in second axial hole. When the cooling medium is injected into the first axial hole, part of the cooling medium flows through the first axial hole and can take away heat in the mandrel to dissipate heat, the other part of the cooling medium flows to the first flow guide hole through the first radial hole and is divided into the flow guide groove and the second axial hole in the first flow guide hole, the heat on the surfaces of the mandrel and the roller sleeve is taken away to dissipate heat, and the heat in the roller sleeve is taken away, so that the heat in the mandrel and the roller sleeve can be dissipated simultaneously in the inner part and the surface of the roller sleeve, the heat transmission with a long distance is not needed, the heat dissipation efficiency is greatly improved, and the service life of the continuous casting roller is effectively prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some of the embodiments described in the present application, and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.
FIG. 1 is a schematic view of a cooling type continuous casting roll according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of a first jacket provided in an embodiment of the present invention;
fig. 4 is an axial sectional view of the first jacket according to an embodiment of the present invention.
Reference numerals: 1-mandrel; 2-roller sleeve; 3-a first jacket; 4-a second jacket; 5-a diversion trench; 6-a bond; 7-sealing sleeve; 11-a first axial bore; 12-a first radial hole; 13-a second radial hole; 21-a second axial hole; 31-first flow guide holes; 41-second diversion holes.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments described in the present invention, all other embodiments obtained by a person skilled in the art without any creative work belong to the protection scope of the present invention.
In the description of the following embodiments of the present invention, the terms "front", "back", "upper", "lower", "inner", "outer", "left", "right", "center", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; may be a mechanical or electrical connection; either directly or indirectly through an intermediate media, or the two elements may be in internal communication. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In order to solve the technical problem of poor heat dissipation effect of the conventional cooling continuous casting roller, the embodiment discloses a cooling continuous casting roller, and please refer to fig. 1 to 4 together. Wherein, fig. 1 is a schematic structural view of a cooling type continuous casting roll provided in the present embodiment; FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1; fig. 3 is a schematic structural diagram of a first jacket provided in this embodiment; fig. 4 is an axial sectional view of the first jacket provided in the present embodiment.
Referring to fig. 1 to 4, the cooling type continuous casting roll includes a mandrel 1 and a roll sleeve 2 which are in clearance fit, a first jacket 3 and a second jacket 4 are arranged between the mandrel 1 and the roll sleeve 2, and the first jacket 3 and the second jacket 4 are respectively close to two ends of the mandrel 1; a first guide hole 31 and a second guide hole 41 are arranged in the first jacket 3 and the second jacket 4 along the radial direction, a guide groove 5 is arranged between the first jacket 3 and the second jacket 4, and two ends of the guide groove 5 are respectively communicated with the first guide hole 31 and the second guide hole 41; a first axial hole 11, a first radial hole 12 and a second radial hole 13 are arranged in the mandrel 1, the first radial hole 12 is close to one end of the mandrel 1, the second radial hole 13 is close to the other end of the mandrel 1, the first radial hole 12 is communicated with the first flow guide hole 31, the second radial hole 13 is communicated with the second flow guide hole 41, and the first radial hole 12 and the second radial hole 13 are both communicated with the first axial hole 11; a second axial hole 21 is arranged in the roller sleeve 2, and two ends of the second axial hole 21 are respectively communicated with the first diversion hole 31 and the second diversion hole 41.
In the cooling type continuous casting roll disclosed in this embodiment, a first jacket 3 and a second jacket 4 near two ends of a mandrel 1 are arranged between the mandrel 1 and a roll sleeve 2, a first guide hole 31 and a second guide hole 41 along a radial direction are respectively arranged in the first jacket 3 and the second jacket 4, and a guide groove 5 communicating the first guide hole 31 and the second guide hole 41 is arranged between the first jacket 3 and the second jacket 4; meanwhile, a first axial hole 11, a first radial hole 12 and a second radial hole 13 which are respectively close to two ends of the mandrel 1 are arranged in the mandrel 1, the first radial hole 12 is communicated with the first flow guide hole 31, the second radial hole 13 is communicated with the second flow guide hole 41, the first radial hole 12 and the second radial hole 13 are communicated with the first axial hole 11, a second axial hole 21 is arranged in the roller sleeve 2, and two ends of the second axial hole 21 are communicated with the first flow guide hole 31 and the second flow guide hole 41. When the cooling medium is injected into the first axial hole 11, a part of the cooling medium flows through the first axial hole 11 and can absorb and take away heat in the mandrel to dissipate heat, the other part of the cooling medium flows to the first flow guide hole 31 through the first radial hole 12 and is distributed to the flow guide grooves 5 and the second axial hole 21 in the first flow guide hole 31, so that not only is the heat on the surfaces of the mandrel 1 and the roller sleeve 2 absorbed and taken away to dissipate heat, but also the heat in the roller sleeve 2 is absorbed and taken away, the heat inside and the surface of the mandrel 1 and the roller sleeve 2 are dissipated simultaneously, long-distance heat transfer is not needed, the heat dissipation efficiency is greatly improved, and the service life of the continuous casting roller is effectively prolonged.
Referring to fig. 2, the number of the first guiding holes 31, the number of the second guiding holes 41, and the number of the guiding grooves 5 are all plural, the plural first guiding holes 31 are uniformly distributed along the circumferential direction of the first jacket 3, the plural second guiding holes 41 are uniformly distributed along the circumferential direction of the second jacket 4, and the plural guiding grooves 5 are circumferentially distributed along the outer side wall of the mandrel 1; the number of the first guiding holes 31, the second guiding holes 41 and the guiding grooves 5 is the same, and each first guiding hole 31 is communicated with one guiding groove 5 and one second guiding hole 41. Taking the orientation shown in fig. 1 as an example, the first diversion hole 31 and the second diversion hole 41 on the upper side of the mandrel 1 are communicated with each other to form a diversion group, the first diversion hole 31 and the second diversion hole 41 on the lower side of the mandrel 1 are communicated with each other to form a diversion group, and each diversion group is communicated through a diversion trench 5.
Referring to fig. 1 to 2, the number of the first radial holes 12 and the second radial holes 13 is multiple, and the multiple first radial holes 12 are close to one end of the mandrel 1 and are uniformly distributed along the circumferential direction of the mandrel 1; the second radial holes 13 are close to the other end of the mandrel 1 and are uniformly distributed along the circumferential direction of the mandrel 1; the number of the first radial holes 12 and the number of the second radial holes 13 are the same as that of the first guide holes 31, each first radial hole 12 is correspondingly communicated with one first guide hole 31, and each second radial hole 13 is correspondingly communicated with one second guide hole 41, so that a cooling medium uniformly flows between the mandrel 1 and the roller sleeve 2, and the heat dissipation effect of the continuous casting roller is improved.
According to fig. 2, the number of the second axial holes 21 is multiple, one end of each second axial hole 21 is correspondingly communicated with one first diversion hole 31, and the other end of each second axial hole 21 is correspondingly communicated with one second diversion hole 41, so that the cooling medium flows into the roller shell 2, and the heat dissipation of the interior of the roller shell 2 is realized.
In this embodiment, the two axial ends of the first jacket 3 and the second jacket 4 are respectively provided with a sealing ring 6 so as to seal the two ends of the first jacket 3 and the second jacket 4 and prevent the cooling medium from overflowing from the two ends of the first jacket 3 and the second jacket 4.
In this embodiment, the extending direction of the diversion trench 5 is parallel to the axis of the mandrel 1, so that the cooling medium flows between the mandrel 1 and the roller sleeve 2 along the axial direction of the mandrel 1, thereby absorbing and taking away the heat of the outer surface of the mandrel 1 and the inner surface of the roller sleeve 2, and improving the heat dissipation effect.
In this embodiment, the roller shell 2 is connected with the mandrel 1 in a key mode, so that the installation is convenient, the axial positioning and fixing effects are achieved, and the relative movement during the work is avoided.
In this embodiment, the inner walls of the first axial hole 11, the second axial hole 21 and the diversion trench 5 are all provided with a heat conduction coating, which is beneficial to improving the heat dissipation effects of the inside of the mandrel 1, the inside of the roller sleeve 2, the inner surface of the mandrel 1 and the outer surface of the roller sleeve 2.
In this embodiment, the first jacket 3 and the second jacket 4 are made of cemented carbide, which has the characteristics of high hardness, high strength, and good wear resistance and heat resistance, and not only meets the requirements of hardness and strength required for supporting the mandrel 1 and the roller sleeve 2, but also ensures the stable shape and size of the mandrel 1 and the roller sleeve 2 during operation.
Based on the above description, the working principle and the use method of the cooling type continuous casting roll of the present embodiment are as follows:
when the segmental continuous casting machine works, a cooling medium is introduced from the left end of the first axial hole 11 of the mandrel 1, enters the first axial hole 11 and then flows to the first flow guide hole 31, a part of the cooling medium in the first flow guide hole 31 flows to the flow guide groove 5, flows to the second flow guide hole 41 through the flow guide groove 5, then flows to the second radial hole 13 through the second flow guide hole 41 and reflows to the first axial hole 11 to flow to the next stage or is discharged; meanwhile, the other part of the cooling medium in the first flow guide hole 31 flows to the second axial hole 21, and flows back to the first axial hole 11 through the second flow guide hole 41 and the second radial hole in sequence at the other end of the second axial hole 21 to flow to the next stage or be discharged, so that the internal heat dissipation of the mandrel 1 and the roller sleeve 2 is realized, the heat dissipation of the outer side wall of the mandrel 1 and the inner side wall of the roller sleeve 2 is realized, and the heat dissipation effect is effectively improved. Namely, a cooling medium is circulated and cooled in the roller sleeve 2 through the first jacket 3, the first jacket 4, the diversion trench 5 and the second axial hole 21 in the roller sleeve, so that the self-cooling effect of the roller sleeve 2 is realized, and a casting blank contacted with the surface of the roller sleeve can be cooled. Among them, the cooling medium is preferably water.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such descriptions are merely for clarity, and those skilled in the art should understand that the embodiments in each embodiment can be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A cooling type continuous casting roller is characterized by comprising a mandrel and a roller sleeve which are in clearance fit;
a first jacket and a second jacket are arranged between the mandrel and the roller sleeve, and the first jacket and the second jacket are respectively close to two ends of the mandrel; a first guide hole and a second guide hole are arranged in the first jacket and the second jacket along the radial direction, a guide groove is arranged between the first jacket and the second jacket, and two ends of the guide groove are respectively communicated with the first guide hole and the second guide hole;
a first axial hole, a first radial hole and a second radial hole are arranged in the mandrel, the first radial hole is close to one end of the mandrel, the second radial hole is close to the other end of the mandrel, the first radial hole is communicated with the first flow guide hole, the second radial hole is communicated with the second flow guide hole, and the first radial hole and the second radial hole are communicated with the first axial hole;
and a second axial hole is formed in the roller sleeve, and two ends of the second axial hole are respectively communicated with the first flow guide hole and the second flow guide hole.
2. The cooled continuous casting roll according to claim 1, wherein the first jacket and the second jacket are provided with respective seal rings at both axial ends thereof.
3. The cooled continuous casting roll according to claim 1, wherein the channels extend in a direction parallel to the axis of the mandrel.
4. The cooled continuous casting roll according to claim 1, characterized in that the roll shell and the mandrel are keyed.
5. The cooled continuous casting roll according to claim 1, characterized in that the first axial bore, the second axial bore and the inner wall of the channel are provided with a thermally conductive coating.
6. The cooled continuous casting roll according to claim 1, characterized in that the material of the first jacket and the second jacket is cemented carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221190539.4U CN217727075U (en) | 2022-05-18 | 2022-05-18 | Cooling type continuous casting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221190539.4U CN217727075U (en) | 2022-05-18 | 2022-05-18 | Cooling type continuous casting roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217727075U true CN217727075U (en) | 2022-11-04 |
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ID=83836081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221190539.4U Active CN217727075U (en) | 2022-05-18 | 2022-05-18 | Cooling type continuous casting roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217727075U (en) |
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2022
- 2022-05-18 CN CN202221190539.4U patent/CN217727075U/en active Active
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