Protective sleeve for traveling wave generator of electromagnetic stirring roller

Abstract

The utility model relates to the technical field of slab continuous casting electromagnetic stirring, in particular to a traveling wave generator protective sleeve of an electromagnetic stirring roller. Comprising a roller sleeve and end shafts. A roller end shaft is arranged at the end of an electromagnetic stirring roller traveling wave generator protective sleeve to form an electromagnetic stirring roller traveling wave generator protective sleeve, and a traveling wave generator is arranged in an inner cavity of the electromagnetic stirring roller traveling wave generator protective sleeve in a spaced mode to form a roller type electromagnetic stirring inductor. Fixing devices are arranged at the two ends of the traveling wave generator, so that the traveling wave generator is coaxially suspended in the protective sleeve; a bearing device and a sealing device (including dynamic seal) are respectively arranged at the end part of a protective sleeve of each traveling wave generator to form an independent roller type traveling wave generating device, and the interior of the protective sleeve is in a sealed state and can freely rotate around the respective traveling wave generator under the driving of external force; and cooling water chambers are arranged at two end parts of the roller type traveling wave generating device structure, and a junction box is arranged at a wire outlet end, so that the slab continuous casting electromagnetic stirring roller-roller type electromagnetic stirrer is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic stirring of slab continuous casting, in particular to a protective sleeve of an electromagnetic stirring roller traveling wave generator. Background Art

[0002] In recent years, with the growing demand for high-quality wide and thick steel plates in China, electromagnetic stirring rollers have been widely used as slab continuous casting process equipment because of their good metallurgical effects of improving slab core segregation and enhancing equiaxed crystals, their use requires little modification to the continuous casting line and their easy installation.

[0003] In the current prior art, the typical electromagnetic stirring roller protective sleeve is formed by roller end shafts inserted into the roller sleeves at both ends of the through hole with bolts. This structure is convenient for the assembly of the traveling wave magnetic field generator, but the connecting structure between the roller sleeve and the roller end shaft has many parts, the structure is not compact, and the length is large. When the length of the protective sleeve is constant, the length of the cavity inside is small, resulting in a large weak magnetic area of ​​the electromagnetic stirring roller, affecting the metallurgical effect. Integrating the roller sleeve with one end of the roller end shaft can effectively reduce the weak magnetic area of ​​the electromagnetic stirring roller, but it also has many disadvantages, such as poor processing processability of deep hole blind holes, difficult to ensure processing accuracy, unstable quality, high processing cost, long processing period, etc. In view of this, it is necessary to provide a new structure of the protective sleeve, a new technology and a method to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems in the prior art and to provide a protective cover for an electromagnetic stirring roller traveling wave generator, which adopts a novel and creative composite structure and technology.

[0005] In order to achieve the purpose of the innovative utility model, the following technical solutions can be used:

[0006] The utility model provides an electromagnetic stirring roller traveling wave generator protective cover which is one of the key parts of a roller type electromagnetic stirring device.

[0007] The utility model provides an electromagnetic stirring roller traveling wave generator protective sleeve, comprising: a roller sleeve, an end shaft, a fusion welding connection ring and a bearing mounting surface. The end surface of the electromagnetic stirring roller traveling wave generator protective sleeve is provided with a stopper and a threaded hole, and a roller end shaft is provided at the stopper of the electromagnetic stirring roller traveling wave generator protective sleeve to form the electromagnetic stirring roller traveling wave generator protective sleeve.

[0008] A traveling wave generator is arranged in the air in the inner cavity of the electromagnetic stirring roller traveling wave generator protection sleeve, and fixing devices are arranged at both ends of the traveling wave generator so that it is coaxially suspended in the protection sleeve; a bearing device and a sealing device (including a dynamic seal) are arranged at the end of the protection sleeve to form an independent roller traveling wave generating device; the protection sleeve is in a sealed state and can rotate freely around the traveling wave generator under the drive of an external force, and cooling water chambers and junction boxes are arranged at both ends of the roller traveling wave generating device structure, so as to form a slab continuous casting electromagnetic stirring roller-roller electromagnetic stirring device.

[0009] The electromagnetic stirring roller traveling wave generator protective cover of the utility model comprises: a roller sleeve, an end shaft, a fusion welding connection ring and a bearing mounting surface, wherein the fusion welding connection ring compositely welds the roller sleeve and the end shaft into one body to form the electromagnetic stirring roller traveling wave generator protective cover, and the electromagnetic stirring roller traveling wave generator protective cover is non-magnetic; the electromagnetic stirring roller traveling wave generator protective cover is provided with a cavity formed by the rotation of a smooth busbar, and the cavity is suitable for containing the electromagnetic stirring roller traveling wave generator in the air. The roller sleeve, the end shaft and the fusion welding connection ring are made of the same material to ensure that any temperature change will not change the original assembly and cooperation between the components of the protective cover.

[0010] In the protective cover of the electromagnetic stirring roller traveling wave generator of the utility model, the roller cover is provided with a stop and a through hole, the end shaft is provided with a cylinder and a trumpet hole, the cylinder of the end shaft is inserted into the stop of the roller cover so that the inner end is fitted without gap to form the non-gap hole-shaft connection pair; the through hole and the trumpet hole are coaxially and smoothly merged to form the cavity.

[0011] The fusion welding connection ring is formed by fusion welding at the outer side of the non-gap hole shaft connection pair. The other end surface of the roller sleeve is provided with a stopper and a threaded hole, and the stopper and the threaded hole are suitable for the installation of the roller end shaft of the electromagnetic stirring roller.

[0012] As an optimized design of the electromagnetic stirring roller traveling wave generator protective cover of the utility model, multiple (at least one) saddle pins are arranged at the cylindrical surface of the non-gap hole shaft connection pair. The saddle pin blocks the relative slippage of the roller sleeve and the end shaft. The roller sleeve, the end shaft, the fusion welding connection ring and the saddle pin are made of the same material.

[0013] As a modified design of the electromagnetic stirring roller traveling wave generator protective cover of the utility model, a plurality of (at least one) saddle screws are arranged at the cylindrical surface of the non-gap hole shaft connection pair. The saddle screws prevent the relative slipping of the roller cover and the end shaft. The roller cover, the end shaft and the fusion welding connection ring and the saddle screws are made of the same material.

[0014] In the electromagnetic stirring roller traveling wave generator protective cover of the utility model, a spiral groove is arranged on the outer surface of the roller cover, and the spiral groove relieves and releases the thermal stress generated by thermal expansion within a certain layer depth of the outer surface of the roller cover.

[0015] As a variant design of the protective cover of the electromagnetic stirring roller traveling wave generator of the utility model, the roller cover is provided with an internal thread at one end, and the end shaft is provided with an external thread matching the internal thread of the roller cover, and the external thread of the end shaft is screwed into the internal thread of the roller cover to form a threaded connection pair; the fusion welding connection ring is formed by fusion welding at the outer meshing part of the threaded connection pair.

[0016] The utility model discloses an electromagnetic stirring roller traveling wave generator protective cover which is an important and key part of a slab continuous casting electromagnetic stirring roller-roll type electromagnetic stirrer.

[0017] In the utility model, a roller end shaft is arranged at the stop of the electromagnetic stirring roller traveling wave generator protective sleeve to form an electromagnetic stirring roller traveling wave generator protective sleeve, a traveling wave generator is arranged in the air in the inner cavity of the electromagnetic stirring roller traveling wave generator protective sleeve to form a roller-type electromagnetic stirring induction body, and fixing devices are arranged at both ends of the traveling wave generator so that it is coaxially suspended in the protection sleeve; a bearing device and a sealing device (including a dynamic seal) are arranged at the end of the protection sleeve to form an independent roller-type traveling wave generating device, so that the inside of the protection sleeve is in a sealed state and can rotate freely around the traveling wave generator under the drive of an external force; cooling water chambers are arranged at both ends of the roller-type traveling wave generating device structure and a junction box is arranged at the outlet end, so as to form a slab continuous casting electromagnetic stirring roller-roller electromagnetic stirrer.

[0018] Compared with the prior art, the utility model has the following advantages: the utility model effectively reduces the weak magnetic area of ​​the electromagnetic stirring roller, greatly improves the processing technology, can effectively ensure the processing accuracy, stable quality, low processing cost, short processing period, etc. It effectively solves the problems existing in the prior art.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0020] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic structural diagram of a protective cover for an electromagnetic stirring roller traveling wave generator according to Embodiment 1 of the utility model;

[0023] Figure 2 This is a schematic structural diagram of a protective cover for an electromagnetic stirring roller traveling wave generator according to Embodiment 2 of the utility model;

[0024] Figure 3 This is a schematic structural diagram of a protective cover for an electromagnetic stirring roller traveling wave generator according to Embodiment 3 of the utility model;

[0025] Figure 4 This is a schematic structural diagram of a protective cover for an electromagnetic stirring roller traveling wave generator according to Embodiment 4 of the utility model;

[0026] Figure 5 The right side view of the utility model;

[0027] Figure 6 It is a schematic diagram of the roller sleeve structure;

[0028] Figure 7 Schematic diagram of the end shaft structure of the utility model;

[0029] Figure 8 A cross-sectional schematic diagram of the protective suit derived from the utility model;

[0030] Fig. 9 A schematic cross-sectional view of a roller-type electromagnetic stirring induction body derived from the utility model.

[0031] In the figure: 1- roller sleeve, 101- stop, 102- spiral groove, 103- through hole, 10- cavity, 2- end shaft, 201- cylinder, 202- horn hole, 3- fusion welding connection ring, 4- saddle pin, 5- saddle screw, 12- non-clearance hole shaft connection pair, 13- threaded connection pair, 21- bearing mounting surface. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] The utility model is attached Figure 1 To Attachment Fig. 9 It can be seen that:

[0034] like Figure 1As shown, the electromagnetic stirring roller traveling wave generator protective cover of the utility model comprises: a roller cover 1, an end shaft 2, a fusion welding connection ring 3 and a bearing mounting surface 21. The fusion welding connection ring 3 compositely welds the roller cover 1 and the end shaft 2 into one body to form the electromagnetic stirring roller traveling wave generator protective cover. The electromagnetic stirring roller traveling wave generator protective cover is non-magnetic so as to facilitate the smooth penetration of the magnetic field generated by the electromagnetic stirring roller traveling wave generator. The electromagnetic stirring roller traveling wave generator protective cover is provided with a cavity 10 formed by the rotation of a smooth busbar, and the cavity 10 is suitable for containing the electromagnetic stirring roller traveling wave generator in the air. The roller cover 1, the end shaft 2 and the fusion welding connection ring 3 are made of the same material.

[0035] The utility model discloses a protective sleeve for an electromagnetic stirring roller traveling wave generator, wherein the roller sleeve 1 is provided with a stop 101 and a through hole 103, and the end shaft 2 is provided with a cylindrical surface 201 and a trumpet hole 202, wherein the cylindrical surface 201 of the end shaft 2 is inserted into the stop 101 of the roller sleeve 1 so that the inner end portion fits in a gap-free manner to form a non-gap hole-shaft connection pair 12; wherein the through hole 103 and the trumpet hole 202 are coaxially and smoothly fused to form a cavity 10.

[0036] A fusion welding connection ring 3 is formed by fusion welding at the outer side of the non-gap hole shaft connection pair 12. The other end surface of the roller sleeve 1 is provided with a stopper and a threaded hole, which are suitable for the installation of the roller end shaft of the electromagnetic stirring roller.

[0037] like Figure 2 As shown, in the optimized example (Example 2) of the electromagnetic stirring roller traveling wave generator protective cover of the utility model, a plurality of (at least one) saddle pins 4 are arranged at the cylindrical fitting of the non-gap hole shaft connection pair 12, and the saddle pins 4 are made of the same material as the roller sleeve 1, the end shaft 2 and the fusion welding connection ring 3. The saddle pins 4 prevent the relative slippage of the roller sleeve 1 and the end shaft 2, ensuring that the electromagnetic stirring roller traveling wave generator protective cover is safer and more reliable in actual use.

[0038] like Figure 3 As shown, in another example (Example 3) of the electromagnetic stirring roller traveling wave generator protective cover of the utility model, a plurality of (at least one) saddle screws 5 are arranged at the cylindrical contact of the non-clearance hole shaft connection pair 12, and the saddle screws 5 are made of the same material as the roller sleeve 1, the end shaft 2 and the fusion welding connection ring 3. The saddle screws 5 prevent the relative slippage of the roller sleeve 1 and the end shaft 2, and ensure the safe use of the electromagnetic stirring roller traveling wave generator protective cover in practice.

[0039] The utility model provides an electromagnetic stirring roller traveling wave generator protective cover, wherein a spiral groove 102 is arranged on the surface of the roller cover 1. The elasticity of the spiral groove 102 effectively relieves and releases the thermal stress generated by thermal expansion within a certain layer depth on the surface of the roller cover 1, thereby effectively extending the actual service life of the electromagnetic stirring roller traveling wave generator protective cover.

[0040] like Figure 4As shown, another example (Example 4) of the electromagnetic stirring roller traveling wave generator protective cover of the utility model, the roller cover 1 is provided with an internal thread at one end, the end shaft 2 is provided with an external thread matching the internal thread of the roller cover 1, and the external thread of the end shaft 2 is screwed into the internal thread of the roller cover 1 to form a threaded connection pair 13; the fusion welding connection ring 3 is formed by fusion welding at the outer meshing part of the threaded connection pair 13. The other end surface of the roller cover 1 is provided with a stopper and a threaded hole, which are suitable for the installation of the roller end shaft of the electromagnetic stirring roller.

[0041] The utility model discloses an electromagnetic stirring roller traveling wave generator protective cover as an important and key part of a slab continuous casting electromagnetic stirring roller-roll type electromagnetic stirrer.

[0042] The electromagnetic stirring roller traveling wave generator protective sleeve of the utility model is provided with a roller end shaft at the stopper to form an electromagnetic stirring roller traveling wave generator protective sleeve (attached Figure 8 ), a traveling wave generator is arranged in the inner cavity of the electromagnetic stirring roller traveling wave generator protection suit to form a roller type electromagnetic stirring induction body (attached Fig. 9 ), fixing devices are arranged at both ends of the traveling wave generator so that it is coaxially suspended in the protection sleeve; bearing devices and sealing devices (including dynamic seals) are arranged at the ends of the protection sleeve to form an independent roller traveling wave generating device, so that the protection sleeve is in a sealed state and can rotate freely around the traveling wave generator under the drive of external force; cooling water chambers are arranged at both ends of the roller traveling wave generating device structure and a junction box is arranged at the outlet end, so as to form a slab continuous casting electromagnetic stirring roller-roll electromagnetic stirrer.

[0043] The utility model provides an electromagnetic stirring roller traveling wave generator protective cover which adopts a novel and creative composite structure and technology and effectively solves the problems existing in the prior art.

[0044] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A protective cover for an electromagnetic stirring roller traveling wave generator, characterized in that: include: A roller sleeve (1), an end shaft (2), a fusion-welded connection ring (3) and a bearing mounting surface (21), wherein the fusion-welded connection ring (3) compositely welds the roller sleeve (1) and the end shaft (2) into one body, and the electromagnetic stirring roller traveling wave generator protective sleeve is non-magnetic; a cavity (10) formed by rotating a smooth generatrix is ​​provided inside the electromagnetic stirring roller traveling wave generator protective sleeve, and the cavity (10) is suitable for containing the electromagnetic stirring roller traveling wave generator in space; the roller sleeve (1), the end shaft (2) and the fusion-welded connection ring (3) are made of the same material.

2. The electromagnetic stirring roller traveling wave generator protective cover according to claim 1, characterized in that: The roller sleeve (1) is provided with a stopper (101) and a through hole (103); the end shaft (2) is provided with a cylindrical surface (201) and a trumpet hole (202); the cylindrical surface (201) of the end shaft (2) is inserted into the stopper (101) of the roller sleeve (1) so that the inner end is fitted without gap to form a non-gap hole-shaft connection pair (12); the through hole (103) and the trumpet hole (202) are coaxially and smoothly fused to form the cavity (10); the fusion welding connection ring (3) is formed by fusion welding at the outer fitting position of the non-gap hole-shaft connection pair (12); the other end surface of the roller sleeve (1) is provided with a stopper and a threaded hole, and the stopper and the threaded hole are suitable for installing the roller end shaft of the electromagnetic stirring roller.

3. The electromagnetic stirring roller traveling wave generator protective cover according to claim 2, characterized in that: At least one saddle pin (4) is arranged at the cylindrical contact point of the non-clearance hole shaft connection pair (12), and the saddle pin (4) blocks the relative sliding of the roller sleeve (1) and the end shaft (2).

4. The electromagnetic stirring roller traveling wave generator protective cover according to claim 2, characterized in that: At least one saddle screw (5) is arranged at the cylindrical surface contact position of the non-clearance hole shaft connection pair (12); the saddle screw (5) blocks the relative sliding of the roller sleeve (1) and the end shaft (2).

5. The electromagnetic stirring roller traveling wave generator protective cover according to claim 1, characterized in that: The outer surface of the roller sleeve (1) is provided with a spiral groove (102), and the spiral groove (102) relieves and releases thermal stress generated by thermal expansion within a certain layer depth of the outer surface of the roller sleeve (1).

6. The electromagnetic stirring roller traveling wave generator protective cover according to claim 1, characterized in that: An internal thread is arranged at one end of the roller sleeve (1), and an external thread matching the internal thread of the roller sleeve (1) is arranged at the end shaft (2), and the external thread of the end shaft (2) is screwed into the internal thread of the roller sleeve (1) to form a threaded connection pair (13); the fusion welding connection ring (3) is formed by fusion welding at the outer meshing position of the threaded connection pair (13); a stopper and a threaded hole are arranged at the other end surface of the roller sleeve (1), and the stopper and the threaded hole are suitable for installing the roller end shaft of the electromagnetic stirring roller.

7. The electromagnetic stirring roller traveling wave generator protective cover according to claim 1, characterized in that: A roller end shaft is arranged at the stop of the electromagnetic stirring roller traveling wave generator protective sleeve to form an electromagnetic stirring roller traveling wave generator protective sleeve, a traveling wave generator is arranged in the air in the inner cavity of the electromagnetic stirring roller traveling wave generator protective sleeve to form a roller-type electromagnetic stirring induction body, and fixing devices are arranged at both ends of the traveling wave generator to make it coaxially suspended in the protection sleeve; a bearing device and a sealing device including a dynamic seal are arranged at the end of the protection sleeve to form an independent roller-type traveling wave generating device, the protection sleeve is in a sealed state and can rotate freely around the traveling wave generator under the drive of an external force; cooling water chambers are arranged at both ends of the roller-type traveling wave generating device structure and a junction box is arranged at the outlet end, so as to form a slab continuous casting electromagnetic stirring roller-roll electromagnetic stirrer.

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