CN210450884U - Short core shaft connecting structure - Google Patents
Short core shaft connecting structure Download PDFInfo
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- CN210450884U CN210450884U CN202020424655.2U CN202020424655U CN210450884U CN 210450884 U CN210450884 U CN 210450884U CN 202020424655 U CN202020424655 U CN 202020424655U CN 210450884 U CN210450884 U CN 210450884U
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Abstract
The utility model discloses a short dabber connection structure, belong to continuous casting steel equipment roller structure, all set up the axial water course through at first short dabber and the short dabber link of second, set up the radial water course of intercommunication axial water course simultaneously at first short dabber and the short dabber of second, the axial water course of first short dabber and the coaxial sealing butt joint of the axial water course tip of the short dabber of second, utilize adapter sleeve and first short dabber and the short dabber outer lane of second to pass through the screw connection, the axis connection of two short dabbers has been realized, connection structure is simple, the adapter sleeve is difficult for receiving the cooling water erosion, installation easy maintenance, utilize the limbers of roller shell pipe wall to realize the cooling water guide simultaneously, avoid seting up the through-hole on the short dabber, the intensity of short dabber has been strengthened, connection stability is improved.
Description
Technical Field
The utility model belongs to continuous casting steel equipment roller structure, concretely relates to short core shaft connection structure.
Background
The continuous casting technology is a new method for rapidly promoting molten steel to be formed, is called as the continuous casting technology for short, and is used as a core link of steel mill production, and plays a key role in bearing up and down in the steel mill, so that the stability and the high efficiency of a continuous casting system play a decisive role in the whole production process; the continuous casting roller is a working structure directly contacted with the surface of a steel billet in the whole system, has good stability and long service life in continuous casting production, and is popular in steel mills.
At present, a short mandrel continuous casting roller structure is mainly used, as shown in fig. 6, the structure comprises a plurality of first mandrels and a plurality of roller bodies which can be arranged at two ends of the first mandrels, second mandrels are respectively arranged at the outer ends of the roller bodies at two ends of the short mandrel continuous casting roller, each short mandrel is arranged in a shaft sleeve, axial connection is completed by a pull rod and a nut, a connecting structure of the first mandrels and the roller bodies is connected by the roller sleeves and keys, and the short mandrels are connected and tensioned, and when the continuous casting roller works on line, the pull rod has thermal expansion and cold contraction effects, so that the preloaded pull rod is loosened; the pull rod is arranged on the inner side of the roller sleeve and is not easy to install and pre-tighten; when the pull rod works, the pull rod is immersed in water, so that the pull rod is easy to rust and brings trouble of difficult disassembly for maintenance.
Disclosure of Invention
For overcoming the not enough of current structure, the utility model provides a short core shaft connecting structure, the utility model discloses connection structure is simple, and connection structure is difficult for receiving the cooling water erosion, installation easy maintenance.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A short mandrel connecting structure comprises a first short mandrel and a second short mandrel which are coaxially connected; the connecting end of the first short mandrel and the connecting end of the second short mandrel are both provided with axial water channels, the first short mandrel and the second short mandrel are respectively provided with a radial water channel communicated with the respective axial water channels, the axial water channels of the first short mandrel and the axial water channel end of the second short mandrel are in coaxial sealing butt joint, and the outer ring of the connecting end of the first short mandrel and the second short mandrel is fixedly connected with a fastening sleeve.
Furthermore, a first interface part is arranged at the connecting end of the first short mandrel, a second interface part is arranged at the connecting end of the second short mandrel, the first interface part and the second interface part are both hollow semicylinders, a hollow cylindrical structure is formed after the two hollow semicylinders are butted and spliced, the first interface part and the second interface part are complementary to form a sealing connecting end, and the outer diameters of the first interface part and the second interface part are smaller than the outer diameters of the first short mandrel and the second short mandrel; the fastening sleeve is sleeved outside the first interface part and the second interface part.
Furthermore, a rectangular tooth groove is formed in the end portion of the first connecting portion, rectangular teeth capable of being inserted into the rectangular tooth groove are formed in the end portion of the second connecting portion, and the rectangular teeth of the second connecting portion are embedded into the rectangular tooth groove of the first connecting portion to form a hollow cylindrical structure.
Further, a sleeve is sleeved on the outer ring of the fastening sleeve, radially arranged key grooves are respectively formed in the peripheries of the first short mandrel, the second short mandrel and the fastening sleeve, radially arranged key grooves are formed in the inner wall of the sleeve, and the sleeve is connected with the fastening sleeve, the first short mandrel and the second short mandrel through keys; the sleeve pipe is used for installing the bearing, and the first short dabber and the short dabber outside cover of second are equipped with the roller shell, are equipped with the limbers with radial water course intercommunication on the roller shell.
Furthermore, one end of the sleeve is provided with a boss structure, the other end of the sleeve is fixedly connected with an end flange through a fastening screw, the end flange is a hollow disc, the thickness of the end flange is the same as that of the boss structure, the outer diameter of the end flange is the same as that of the boss structure, and the end part of the roller sleeve is provided with a concave hole; the boss structure of the sleeve and the end flange fixed at the end part of the sleeve are respectively nested in the concave holes of the corresponding roller sleeves.
Furthermore, the axial water channels of the first short mandrel and the second short mandrel are hermetically connected through a sealing sleeve arranged inside the axial water channels.
Further, a sealing ring is arranged between the sealing sleeve and the inner wall of the axial water channel of the first short mandrel; and a sealing ring is arranged between the sealing sleeve and the inner wall of the axial water channel of the second short mandrel.
Further, the sealing sleeve is connected with the inner wall of the axial water channel of the first short mandrel in an interference fit manner; the sealing sleeve is connected with the inner wall of the axial water channel of the second short mandrel in an interference fit manner.
Further, the first short mandrel is symmetrically arranged about the central cross section of the first short mandrel; the axial water channel is arranged in a blind hole; the radial water channels are uniformly distributed along the circumferential direction of the axial water channel and are communicated with each other through the bottoms of the blind holes.
Further, the second short mandrel and the first short mandrel are identical in structure, and the first short mandrels and the second short mandrels are sequentially connected.
Compared with the prior art, the utility model discloses following profitable technological effect has.
The utility model relates to a short dabber connection structure, all set up the axial water course at first short dabber and the short dabber link of second, set up the radial water course of the respective axial water course of intercommunication simultaneously on first short dabber and the short dabber of second respectively, the axial water course of first short dabber and the coaxial sealed butt joint of axial water course tip of the short dabber of second utilize adapter sleeve and the short dabber of first short dabber and second outer lane fixed connection, the axial fixity of two short dabbers has been realized, connection structure is simple, the adapter sleeve is difficult for receiving the cooling water erosion, installation easy maintenance.
Furthermore, first short dabber hub connection end is equipped with first interface part, and the short dabber hub connection end of second is equipped with the second interface part, and first interface part and second interface part are hollow semicylinders, form hollow cylinder structure after two hollow semicylinders butt joint amalgamations, and first interface part and the complementary seal connection end that forms of second interface part effectively improve first short dabber and the short dabber circumference of second and connect stability, avoid the adapter sleeve to receive torsional force, simple structure, the assembly of being convenient for.
Furthermore, the end part of the first connecting part is provided with a rectangular tooth groove, the end part of the second connecting part is provided with a rectangular tooth which can be inserted into the rectangular tooth groove, and the rectangular tooth of the second connecting part is embedded into the rectangular tooth groove of the first connecting part to form a hollow cylindrical structure, so that the connecting stability is good.
Furthermore, a sleeve is sleeved on the outer ring of the fastening sleeve, radially arranged key grooves are formed in the peripheries of the first short mandrel, the second short mandrel and the fastening sleeve respectively, radially arranged key grooves are formed in the inner wall of the sleeve, the sleeve and the fastening sleeve are connected with the first short mandrel and the second short mandrel simultaneously through keys, and therefore the circumferential connection stability of the first short mandrel and the second short mandrel is improved; utilize the sleeve pipe to realize the bearing installation, avoid adapter sleeve and bearing direct contact, improved adapter sleeve connection stability, utilize the limbers of roller shell pipe wall to realize the cooling water guide simultaneously, avoid seting up the through-hole on short dabber, strengthened the intensity of short dabber, improve connection structure's stability.
Furthermore, one end of the sleeve is provided with a boss structure, the other end of the sleeve is fixedly connected with an end flange through a fastening screw, and a limiting structure of the bearing sleeved on the sleeve is formed at the two ends of the sleeve, so that the bearing can be conveniently mounted and dismounted, and the mounting efficiency is improved.
Furthermore, the axial water channel of the first short core shaft and the second short core shaft is connected in a sealing mode through the sealing sleeve arranged inside the axial water channel, radial leakage of cooling water along the connecting end of the first short core shaft and the second short core shaft is avoided, and connection sealing performance is improved.
Further, a sealing ring is arranged between the sealing sleeve and the inner wall of the axial water channel of the first short mandrel; and a sealing ring is arranged between the sealing sleeve and the inner wall of the axial water channel of the second short mandrel, so that the sealing effect is improved, and the sealing sleeve is convenient to disassemble.
Further, the sealing sleeve is connected with the inner wall of the axial water channel of the first short mandrel in an interference fit manner; the sealing sleeve is connected with the inner wall of the axial water channel of the second short core shaft in an interference fit mode, the sealing sleeve is expanded by utilizing the liquid pressure in the axial water channel, and the sealing performance is good.
Furthermore, first short dabber is the blind hole setting about its self central cross section symmetry, and radial water course is along axial water course circumference evenly distributed, and through blind hole bottom intercommunication setting, has improved the cooling effect of first short dabber.
Furthermore, the second short mandrel and the first short mandrel are the same in structure, the plurality of first short mandrels and the second short mandrels can be connected in sequence, the installation efficiency is improved, and the installation universality is high.
Drawings
Fig. 1 is a schematic view of a short core shaft connection structure in an embodiment of the present invention.
Fig. 2 is a schematic view of a connection end structure of the first short mandrel and the second short mandrel according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 4 is a schematic view of the structure in direction D of fig. 1.
Fig. 5 is a schematic view of a connection structure of two second short mandrels and one first short mandrel according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a conventional short mandrel continuous casting roll.
Fig. 7 is a schematic view of a connection structure of the short core shaft and the cooling source according to an embodiment of the present invention.
Wherein, 1, a first short mandrel; 2. a second short mandrel; 3. sealing the sleeve; 4. an end flange; 5. a seal ring; 6. a sleeve; 7. a key; 8. a screw; 9. fastening sleeves; 10. fastening screws; 11. an axial water channel; 12. a radial water channel; 13. a bearing; 14. a roller sleeve; 15. a first interface section; 16. a second interface part; 17. a water hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the short mandrel connection structure of the present invention includes a first short mandrel 1 and a second short mandrel 2 which are coaxially connected; the connecting end of the first short mandrel 1 and the connecting end of the second short mandrel 2 are both provided with an axial water channel 11, the axial water channel of the first short mandrel 1 and the axial water channel of the second short mandrel 2 are coaxially arranged, the diameters of the axial water channel of the first short mandrel 1 and the axial water channel of the second short mandrel 2 are the same, the influence of a through hole on the strength of the first short mandrel 1 is avoided, and the axial water channels 11 are arranged in blind holes; the first short mandrel 1 and the second short mandrel 2 are respectively provided with a radial water channel 12 communicated with the respective axial water channels; in order to improve the cooling efficiency of the first short mandrel 1 and the second short mandrel 2, a plurality of radial water channels 12 communicated to the axial water channel 11 can be arranged on the first short mandrel 1 according to actual conditions; in order to improve the installation universality, the radial water channels 12 are uniformly distributed along the circumferential direction of the axial water channel 11 and are communicated with each other through the bottoms of the blind holes; the first short mandrel 1 and the second short mandrel 2 are identical in structure, and the first short mandrel 1 is symmetrically arranged about the central cross section of the first short mandrel 1; preferably, the first short mandrel 1 is provided with two radial water channels 12, the two radial water channels 12 are coaxially arranged, and the radial water channels 12 are communicated with the inner end part of the axial water channel.
As shown in fig. 5, two second short mandrels are connected with a first short mandrel in sequence, one end of the first short mandrel 1 is connected with one end of a second short mandrel 2 to form a first connecting structure a, and the other end of the first short mandrel 1 is connected with one end of another second short mandrel 2 to form a second connecting structure B; the first short mandrels 1 and the second short mandrels 2 can be connected in sequence, and the installation efficiency and the installation universality of the short mandrels are improved.
The end parts of the axial water channel of the first short mandrel 1 and the axial water channel of the second short mandrel 2 are coaxially and hermetically butted; the outer ring of the connecting end of the first short mandrel 1 and the second short mandrel 2 is fixedly connected with a fastening sleeve 9 through a screw 8, the fastening sleeve 9 is selected to be sleeved on the outer ring of the first short mandrel 1 and the outer ring of the second short mandrel 2 to realize the axial fixed connection of the first short mandrel 1 and the second short mandrel 2, the connecting structure is simple, the fastening sleeve is not easy to be corroded by cooling water, and the installation and maintenance are convenient; the cover is equipped with sleeve 6 in the 9 outside covers of adapter sleeve, and sleeve 6 is used for the cover to establish installation bearing 13, and the cover is equipped with roller shell 14 in the first short dabber 1 and the 2 outside covers of the short dabber of second, is equipped with the limbers 17 with radial water course 12 intercommunication on the roller shell 14, constitutes short dabber continuous casting roller structure, utilizes the limbers 17 of the 14 pipe walls of roller shell to realize the cooling water guide, avoids offering the through-hole on short dabber, has strengthened the intensity of short dabber, improves connection stability. As shown in fig. 7, a short mandrel connection structure formed by connecting a first short mandrel 1 and two second short mandrels 2, an axial water channel of the second short mandrel 2 at one end of the short mandrel connection structure is communicated with a water source water outlet through a rotary connecting pipe, an axial water channel of the second short mandrel 2 at the other end of the short mandrel connection structure is communicated with a water source water inlet through a rotary connecting pipe, a water flow direction is shown as an arrow in fig. 7, cooling liquid enters from the water source water outlet into the axial water channel of the second short mandrel 2 at one end of the short mandrel connection structure, then enters into a water through hole 17 of a roller sleeve 14 sleeved on the second short mandrel 2 after being drained from a radial water channel 12 communicated with the axial water channel, enters into the axial water channel at the other end of the second short mandrel 2 after being drained to the radial water channel at the other end of the second short mandrel 2 through the water through the axial water channel at the other end of the second short mandrel 2, and enters into a shaft at one end of the first short mandrel 1 communicated And (3) towards the water channel, the flowing route of the cooling liquid in the first short mandrel 1 is the same as the flowing route of the cooling liquid in the second short mandrel 2, and the cooling liquid finally enters the water source water inlet through the axial water channel of the second short mandrel 2 at the end part of the other end of the short mandrel connecting structure, so that the cooling circulation of the cooling liquid in the short mandrel connecting structure is realized.
As shown in fig. 1, the axial water channels of the first short mandrel 1 and the second short mandrel 2 are hermetically connected through a sealing sleeve 3 arranged in the axial water channels, so that the axial water channels of the first short mandrel 1 and the second short mandrel 2 are communicated, and cooling water in the axial water channels flows between the first short mandrel 1 and the second short mandrel 2; a sealing ring 5 is arranged between the sealing sleeve 3 and the inner wall of the axial water channel of the first short mandrel 1, and a sealing ring is arranged between the sealing sleeve 3 and the inner wall of the axial water channel of the second short mandrel 2, so that the sealing effect is improved, and the sealing sleeve is convenient to disassemble; or the sealing sleeve 3 is connected with the inner wall of the axial water channel of the first short mandrel 1 and the second short mandrel 2 in an interference fit manner, the sealing sleeve 3 is expanded to be in close contact with the inner wall of the axial water channel by utilizing the liquid pressure in the axial water channel, the sealing performance is good, the sealing and communication with the axial water channel between the first short mandrel 1 and the second short mandrel 2 are realized, the radial leakage of cooling water along the connecting end of the first short mandrel 1 and the second short mandrel 2 is avoided, and the connection sealing performance is improved.
As shown in fig. 2, a first interface portion 15 is arranged at the connecting end of the first short mandrel 1, a second interface portion 16 is arranged at the connecting end of the second short mandrel 2, the first interface portion 15 and the second interface portion 16 are complementary to form a sealing connecting end and form a self-sealing structure, the outer diameters of the first interface portion 15 and the second interface portion 16 are smaller than the outer diameters of the first short mandrel 1 and the second short mandrel 2, the fastening sleeve 9 is sleeved outside the first interface portion 15 and the second interface portion 16, the outer diameter of the fastening sleeve 9 is the same as the outer diameters of the first short mandrel 1 and the second short mandrel 2, the connecting ends of the first short mandrel 1 and the second short mandrel 2 are formed into the sealing connecting end by using the first interface portion 15 and the second interface portion 16, the sealing performance of the axial water channel communication between the first short mandrel 1 and the second short mandrel 2 is further enhanced, and the fastening sleeve 9 is connected with the first interface portion 15 and the second interface portion.
As shown in fig. 2, the interface parts of the first short mandrel 1 and the second short mandrel 2 are both hollow semicylinders, and the two hollow semicylinder structures are butted and spliced to form a hollow cylindrical structure, so that the structure is simple and convenient to assemble; or adopt the rectangular tooth structure of mutual nested meshing, set up the rectangular tooth groove at first interface portion 15 tip promptly, set up the rectangular tooth that can insert in the rectangular tooth groove at the 16 tip of second interface portion, the rectangular tooth embedding of second interface portion 16 forms hollow cylinder structure in the rectangular tooth groove of first interface portion 15, and connection stability is good, effectively improves first short dabber 1 and the short dabber 2 circumferential connection intensity of second, avoids adapter sleeve 9 to receive first short dabber 1 and the short dabber 2 rotational torque of second.
As shown in fig. 1 and 3, the outer walls of the first short mandrel 1, the second short mandrel 2 and the fastening sleeve 9 are respectively provided with a radial key groove, the sleeve 6 is simultaneously connected with the first short mandrel 1, the second short mandrel 2 and the fastening sleeve 9 through a key 7, the sleeve 6 and the fastening sleeve 9 are simultaneously connected with the first short mandrel 1 and the second short mandrel 2 through the key 7, the circumferential connection stability of the first short mandrel 1 and the second short mandrel 2 is improved, and the key groove connected with the key 7 is arranged at the end part of the inner ring of the roller sleeve 14. Bearing 13 installs on the bearing frame, and roller shell 14 can be along with the operation of continuous casting billet along with the free rotation together with first short dabber 1 and the short dabber 2 of second at the during operation, utilizes the sleeve pipe to realize the bearing installation, avoids adapter sleeve and bearing direct contact, has improved adapter sleeve connection stability, utilizes the limbers of roller shell pipe wall to realize the cooling water guide simultaneously, avoids offering the through-hole on short dabber, has strengthened the intensity of short dabber, improves connection structure's stability.
As shown in fig. 1 and 4, one end of the sleeve 6 is provided with a boss structure, the other end of the sleeve 6 is a cylinder, and the end of the roller sleeve 14 is provided with a concave hole matched with the boss structure, so that the assembly and positioning are convenient; the end part of the cylinder at the other end of the sleeve 6 is fixedly connected with an end flange 4 through a fastening screw 10, the end flange 4 is a hollow disc, the thickness of the end flange 4 is the same as that of the boss structure, the outer diameter of the end flange 4 is the same as that of the boss structure, and during installation, the boss structure of the sleeve 6 and the end flange 4 fixed at the end part of the sleeve 6 are respectively nested in the concave holes of the roller sleeves 14 at the two ends of the sleeve 6; the installation and the dismantlement of the bearing of being convenient for utilize the boss structure at sleeve pipe 6 both ends and tip flange 4 to carry out the pre-installation to the bearing, improve the installation effectiveness, can prevent 14 axial contacts bearings of roller shell simultaneously, have ensured bearing operating stability.
In the using process, a first short mandrel 1 and a second short mandrel 2 are fixedly connected through a fastening sleeve 9, in order to improve the connection stability and the sealing performance of the first short mandrel 1 and the second short mandrel 2, a first interface part 15 is arranged at the connecting end of the first short mandrel 1, a second interface part which forms a sealing connecting end with the first interface part 15 is arranged at the connecting end of the second short mandrel 2, the first interface part 15 and the second interface part 16 are complementary to form the sealing connecting end, the fastening sleeve 9 is sleeved outside the first interface part 15 and the second interface part 16 and fixed through screws, then a sleeve 6 provided with a bearing is simultaneously connected with the first short mandrel 1 and the second short mandrel 2 and the fastening sleeve 9 through a key 7, so that the first short mandrel 1 and the second short mandrel 2 form a stable connecting structure, finally a roller sleeve 14 is sleeved outside the first short mandrel 1 and the second short mandrel 2, and a water through hole 17 and a radial water channel 12 are aligned, the end part of the inner ring of the roller sleeve 14 is provided with a key groove connected with the key 7, and the roller sleeve 14, the first short mandrel 1 and the second short mandrel 2 can freely rotate together along with the running of the continuous casting billet during working.
Claims (10)
1. A short mandrel connecting structure is characterized by comprising a first short mandrel (1) and a second short mandrel (2) which are coaxially connected; the connecting end of the first short mandrel (1) and the connecting end of the second short mandrel (2) are respectively provided with an axial water channel (11), the first short mandrel (1) and the second short mandrel (2) are respectively provided with a radial water channel (12) communicated with the respective axial water channels, the axial water channels of the first short mandrel (1) and the axial water channel end of the second short mandrel (2) are in coaxial sealing butt joint, and the outer ring of the connecting end of the first short mandrel (1) and the second short mandrel (2) is fixedly connected with a fastening sleeve (9).
2. A short mandrel connecting structure according to claim 1, wherein the first short mandrel (1) connecting end is provided with a first connecting part (15), the second short mandrel (2) connecting end is provided with a second connecting part (16), the first connecting part (15) and the second connecting part (16) are both hollow semicylinders, the hollow semicylinders form a hollow cylindrical structure after being butted and spliced, the first connecting part (15) and the second connecting part (16) are complementary to form a sealing connecting end, and the outer diameters of the first connecting part (15) and the second connecting part (16) are smaller than the outer diameters of the first short mandrel (1) and the second short mandrel (2); the fastening sleeve (9) is sleeved outside the first interface part (15) and the second interface part (16).
3. A short spindle connection according to claim 2, characterized in that the first connecting portion (15) is provided with a rectangular spline at its end, the second connecting portion (16) is provided with a rectangular spline at its end, and the rectangular spline of the second connecting portion (16) is inserted into the rectangular spline of the first connecting portion (15) to form a hollow cylindrical structure.
4. The short mandrel connecting structure according to claim 2, wherein a sleeve (6) is sleeved on the outer ring of the fastening sleeve (9), radially arranged key grooves are respectively formed on the peripheries of the first short mandrel (1), the second short mandrel (2) and the fastening sleeve (9), radially arranged key grooves are formed on the inner wall of the sleeve (6), and the sleeve (6) is simultaneously connected with the fastening sleeve (9), the first short mandrel (1) and the second short mandrel (2) through keys (7); the sleeve (6) is used for installing a bearing (13), the outer sides of the first short mandrel (1) and the second short mandrel (2) are sleeved with a roller sleeve (14), and a water through hole (17) communicated with the radial water channel (12) is formed in the roller sleeve (14).
5. A short core shaft connecting structure according to claim 4, characterized in that one end of the sleeve (6) is provided with a boss structure, the other end of the sleeve (6) is fixedly connected with an end flange (4) through a fastening screw (10), the end flange (4) is a hollow disc, the thickness of the end flange (4) is the same as that of the boss structure, the outer diameter of the end flange (4) is the same as that of the boss structure, and the end of the roller sleeve (14) is provided with a concave hole; the boss structure of the sleeve (6) and the end flange (4) fixed at the end part of the sleeve (6) are respectively nested in the concave hole of the corresponding roller sleeve (14).
6. A short spindle connection according to claim 1, characterized in that the axial water channels of the first short spindle (1) and the second short spindle (2) are sealingly connected by means of a sealing sleeve (3) arranged inside the axial water channel.
7. A short mandrel connection structure according to claim 6, characterized in that a sealing ring is arranged between the sealing sleeve (3) and the inner wall of the axial water channel of the first short mandrel (1); and a sealing ring is arranged between the sealing sleeve (3) and the inner wall of the axial water channel of the second short mandrel (2).
8. A short mandrel connection structure according to claim 6, characterized in that the sealing sleeve (3) is connected with the inner wall of the axial water channel of the first short mandrel (1) in an interference fit manner; the sealing sleeve (3) is connected with the inner wall of the axial water channel of the second short mandrel (2) in an interference fit manner.
9. A short spindle connection according to claim 1, characterized in that the first short spindle (1) is arranged symmetrically with respect to its own central cross section; the axial water channel (11) is arranged in a blind hole; the radial water channels (12) are uniformly distributed along the circumferential direction of the axial water channel (11) and are communicated with each other through the bottoms of the blind holes.
10. A short mandrel connection according to claim 9, characterized in that the second short mandrel (2) is of the same construction as the first short mandrel (1), and that several first short mandrels (1) and second short mandrels (2) are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020424655.2U CN210450884U (en) | 2020-03-30 | 2020-03-30 | Short core shaft connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020424655.2U CN210450884U (en) | 2020-03-30 | 2020-03-30 | Short core shaft connecting structure |
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| CN210450884U true CN210450884U (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145814A (en) * | 2021-04-19 | 2021-07-23 | 中钢集团西安重机有限公司 | Continuous casting free roll |
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2020
- 2020-03-30 CN CN202020424655.2U patent/CN210450884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145814A (en) * | 2021-04-19 | 2021-07-23 | 中钢集团西安重机有限公司 | Continuous casting free roll |
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