Continuous casting roller for continuous casting machine
By setting up a high-temperature resistant layer, heat insulation layer and reinforcement ribs on the continuous casting roller, combined with spiral grooves and ceramic coating, the problem of wear and deformation of the continuous casting roller at high temperatures is solved, and a longer service life and higher casting quality is achieved.
Patent Information
- Application Number
- CN202422276764.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The continuous casting roller wears fast during long contact and friction with the high-temperature casting billet, resulting in uneven roller surfaces, affecting the quality of the casting billet and increasing production costs and downtime.
A high-temperature resistant layer is provided on the outer surface of the continuous casting roller body, and a heat insulation layer and a high-strength support layer are provided inside, including cavity and reinforcement ribs, combined with spiral grooves and ceramic coatings to enhance cooling effect and structural stability.
It extends the service life of continuous casting rollers, reduces wear and deformation, and improves the surface quality and production efficiency of the casting billet.
Smart Images
Figure CN223198029U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of continuous casting rollers, in particular to a continuous casting roller used in a continuous casting machine. Background Art
[0002] In a continuous casting machine, the continuous casting roller plays an important role. It supports the solidifying billet, guides the billet to run in a specific direction, and ensures that the billet maintains a stable position and forward direction during the continuous casting process. Existing continuous casting rollers are usually composed of a roller body, a roller neck, a bearing seat and other parts. The roller body: directly contacts the billet, and its surface is generally specially treated to have high hardness and wear resistance to withstand the high temperature, heavy pressure and friction of the billet; the roller neck: used to install bearings, connect the roller body and the bearing seat, and transmit the rotation of the roller body to the entire continuous casting roller system; the bearing seat: fixes the continuous casting roller, ensures its stability during operation, and provides support and lubrication for the roller neck.
[0003] At present, the continuous casting rollers wear out quickly during the long-term contact and friction with the high-temperature ingots, which not only affects the surface quality of the ingots, but also leads to frequent replacement of the continuous casting rollers, increasing production costs and downtime. During the continuous casting process, the continuous casting rollers have to withstand high temperatures of up to thousands of degrees. Under the continuous high temperature, the continuous casting rollers are prone to deformation, resulting in uneven roller gaps, which affects the solidification and cooling process of the ingots.
[0004] To this end, a continuous casting roller for a continuous casting machine is proposed. Utility Model Content
[0005] In view of the above problems, the present invention provides a continuous casting roller for a continuous casting machine to solve the problems raised in the above background technology.
[0006] The technical solution of the utility model is:
[0007] A continuous casting roller for a continuous casting machine comprises a roller body, a roller neck, and a bearing seat. The outer surface of the roller body is provided with a high-temperature resistant layer, and the interior of the roller body is provided with a heat insulation layer and a high-strength support layer. The heat insulation layer includes a cavity, and the high-strength support layer includes a support sleeve. The cavity is opened between the roller body and the support sleeve. A first reinforcing rib is fixedly connected between the outer surface of the support sleeve and the inner wall of the roller body, and three groups of the first reinforcing ribs are provided along the length direction of the roller body. The roller neck is located at both ends of the roller body, and the bearing seat is fixed to the outer surface of the roller neck.
[0008] A high-temperature resistant layer is provided on the outer surface of the roller body, which can effectively resist the high temperature during the continuous casting process, reduce the deformation and damage of the roller body caused by high temperature, and extend the service life of the continuous casting roller. A heat-insulating layer cavity is provided inside to block the heat from being transferred to the internal high-strength support layer, reduce the temperature borne by internal structures such as the support sleeve, and reduce the risk of thermal deformation. The support sleeve of the high-strength support layer and the three groups of first reinforcing ribs arranged along the length of the roller body provide support for the roller body, ensuring that it is not easily deformed when subjected to the heavy pressure and friction of the billet, ensuring that the roller gap is uniform, and facilitating the solidification and cooling process of the billet.
[0009] In a further technical solution, both ends of the roller body are fixedly connected with connecting plates, the connecting plates are conical, and the small ends of the connecting plates are fixedly connected to the roller neck.
[0010] Through the above technical solution, the force transmitted by the roller body can be better dispersed, the stress concentration at the roller neck can be reduced, and the stability of the connection can be improved.
[0011] In a further technical solution, the inner wall of the support sleeve is fixedly connected with second reinforcing ribs distributed at equal intervals, and each of the second reinforcing ribs is in a cross-shaped shape.
[0012] Through the above technical solution, the strength and rigidity of the support sleeve are further enhanced. During the continuous casting process, it can better withstand the pressure and impact force from the outside of the roller body, reduce the deformation of the support sleeve, and thus ensure the structural stability of the entire continuous casting roller.
[0013] In a further technical solution, each group of the first reinforcing ribs is composed of six circumferentially distributed reinforcing ribs, and the cross-section of the reinforcing ribs is hexagonal.
[0014] Through the above technical solution, the contact area between the reinforcing ribs and the inner wall of the roller body and the outer surface of the support sleeve is increased, the supporting effect of the reinforcing ribs is improved, and the reinforcing ribs with hexagonal cross-section have better stability and load-bearing capacity, can more effectively resist external forces, and prevent the roller body from deformation.
[0015] In a further technical solution, an arc plate is fixedly connected to the intersection of the roller body and the connecting disk, and the middle part of the surface of the roller body forms a concave surface through the arc plate.
[0016] Through the above technical solution, the structural strength of the roller body is increased and the deformation during the stress-bearing process is reduced.
[0017] In a further technical solution, a first spiral groove is provided on the outer surface of the roller body, a third spiral groove is provided on the outer surface of the roller neck, and a second spiral groove is provided on the outer surface of the connecting plate.
[0018] Through the above technical solution, the spiral groove can increase the contact area between the continuous casting roller and the cooling medium, improve the cooling efficiency, reduce the temperature of the continuous casting roller at high temperatures, and reduce thermal deformation and wear.
[0019] In a further technical solution, the outer surface of the roller body is sprayed with a high-temperature resistant ceramic coating.
[0020] Through the above technical solution, the high-temperature resistance of the roller body can be improved, and it can effectively resist high-temperature erosion during the continuous casting process. At the same time, the ceramic coating has good wear resistance, which can reduce the wear rate of the roller surface, improve the surface quality of the casting, and reduce the replacement frequency of the continuous casting roller.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] The first spiral groove on the outer surface of the roller body and the second and third spiral grooves on the outer surfaces of the connecting plate and the roller neck increase the cooling effect and reduce the roller surface temperature. In addition, the setting of the cavity blocks the heat from being transferred to the inside, reducing the temperature borne by the internal structure of the roller body. Combined with the support sleeve and the first and second reinforcing ribs, a stable supporting force is provided for the continuous casting roller. When subjected to the heavy pressure and friction of the high-temperature ingot, it is not easy to deform, ensuring the uniformity of the roller gap. In addition, the connecting plate is conical and the connection structure with the roller neck, as well as the setting of the arc plate, enhances the stability of the connection between the roller body and the roller neck, and further improves the structural strength of the entire continuous casting roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0024] Figure 2 This is a schematic diagram of the assembly structure of the roller body and the connecting plate of the utility model;
[0025] Figure 3 This is a schematic diagram of the partial cross-sectional structure of the roller body of the utility model;
[0026] Figure 4 This utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.
[0027] Description of reference numerals:
[0028] 1. Roller body; 2. Roller neck; 3. Bearing seat; 4. Cavity; 5. Support sleeve; 51. First reinforcing rib; 6. Connecting plate; 7. First spiral groove; 8. Second spiral groove; 9. Third spiral groove; 10. Second reinforcing rib; 11. Arc plate. DETAILED DESCRIPTION
[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0032] Example:
[0033] See also Figure 1-4 A continuous casting roller for a continuous casting machine includes a roller body 1, a roller neck 2, and a bearing seat 3. The outer surface of the roller body 1 is provided with a high-temperature resistant layer, and the interior of the roller body 1 is provided with a heat insulation layer and a high-strength support layer. The heat insulation layer includes a cavity 4, and the high-strength support layer includes a support sleeve 5. The cavity 4 is opened between the roller body 1 and the support sleeve 5. A first reinforcing rib 51 is fixedly connected between the outer surface of the support sleeve 5 and the inner wall of the roller body 1, and three groups of first reinforcing ribs 51 are provided along the length direction of the roller body 1. The roller neck 2 is located at both ends of the roller body 1, and the bearing seat 3 is fixed to the outer surface of the roller neck 2.
[0034] A high-temperature resistant layer is provided on the outer surface of the roller body 1, which can effectively resist the high temperature during the continuous casting process, reduce the deformation and damage of the roller body caused by high temperature, and extend the service life of the continuous casting roller. A heat-insulating layer cavity 4 is provided inside to block the heat from being transferred to the internal high-strength support layer, reduce the temperature borne by internal structures such as the support sleeve 5, and reduce the risk of thermal deformation. The support sleeve 5 of the high-strength support layer and the three groups of first reinforcing ribs 51 arranged along the length direction of the roller body 1 provide support for the roller body 1, ensuring that it is not easy to deform when subjected to the heavy pressure and friction of the casting, ensuring that the roller gap is uniform, and facilitating the solidification and cooling process of the casting.
[0035] See also Figure 1and Figure 2 Both ends of the roller body 1 are fixedly connected with a connecting plate 6, the connecting plate 6 is conical, and the small end of the connecting plate 6 is fixedly connected to the roller neck 2.
[0036] The connecting plates 6 at both ends of the roller body 1 are conical, and the small ends are fixedly connected to the roller neck 2, which can better disperse the force transmitted by the roller body 1, reduce stress concentration at the roller neck 2, and improve the stability of the connection.
[0037] See also Figure 2 and Figure 3 The inner wall of the support sleeve 5 is fixedly connected with second reinforcing ribs 10 distributed at equal intervals, and each second reinforcing rib 10 is in a M-shape.
[0038] The M-shaped second reinforcing ribs 10 evenly distributed on the inner wall of the support sleeve 5 further enhance the strength and rigidity of the support sleeve 5. During the continuous casting process, it can better withstand the pressure and impact force from the outside of the roller body 1, reduce the deformation of the support sleeve 5, and thus ensure the structural stability of the entire continuous casting roller.
[0039] See also Figure 2 and Figure 3 Each group of first reinforcing ribs 51 is composed of six circumferentially distributed reinforcing ribs, and the cross-section of the reinforcing ribs is hexagonal.
[0040] The contact area between the reinforcing ribs and the inner wall of the roller body 1 and the outer surface of the support sleeve 5 is increased, and the supporting effect of the reinforcing ribs is improved. The reinforcing ribs with hexagonal cross-section have good stability and bearing capacity, can more effectively resist external forces, and prevent the roller body 1 from deforming.
[0041] See also Figure 3 and Figure 4 The intersection of the roller body 1 and the connecting plate 6 is fixedly connected with an arc plate 11, and the middle part of the surface of the roller body 1 forms a concave surface through the arc plate 11.
[0042] The structural strength of the roller body 1 is increased, and deformation during the stress-bearing process is reduced.
[0043] See also Figure 1 and Figure 2 The outer surface of the roller body 1 is provided with a first spiral groove 7, the outer surface of the roller neck 2 is provided with a third spiral groove 9, and the outer surface of the connecting plate 6 is provided with a second spiral groove 8.
[0044] The spiral groove can increase the contact area between the continuous casting roller and the cooling medium, improve the cooling efficiency, reduce the temperature of the continuous casting roller at high temperatures, and reduce thermal deformation and wear.
[0045] The outer surface of the roller body 1 is sprayed with a high-temperature resistant ceramic coating.
[0046] The high temperature resistance of the roller body 1 can be improved, and it can effectively resist high temperature erosion during the continuous casting process. At the same time, the ceramic coating has good wear resistance, which can reduce the wear rate of the roller surface, improve the surface quality of the casting, and reduce the replacement frequency of the continuous casting roller.
[0047] During operation, the roller body 1 is installed on the bearing seat 3 through the roller necks 2 at both ends. The bearing seat 3 provides support and fixation for the roller neck 2 to ensure that the roller body 1 can rotate stably. During the rotation process, the roller body 1 bears the weight and friction of the ingot and transmits the force to the roller neck 2. The roller neck 2 then disperses the force through the connection with the bearing seat 3. The high-temperature resistant layer is in direct contact with the high-temperature ingot to resist high-temperature erosion. The heat-insulating layer cavity 4 is located between the roller body 1 and the high-strength support layer, which effectively blocks the heat from being transferred to the inside. The support sleeve 5 of the high-strength support layer and the first reinforcement rib 51, the first reinforcement rib 52 and the second reinforcement rib 53 are provided. The two reinforcing ribs 10 provide support for the roller body 1 to prevent deformation of the roller body. The connecting plate 6 is a conical structure that connects the roller body 1 and the roller neck 2, and can transmit and transition force. The arc plate 11 can strengthen the structural strength of the junction between the roller body 1 and the connecting plate 6. At the same time, it cooperates with the concave surface design in the middle of the surface of the roller body 1, which may help guide the operation of the casting and the flow of the cooling medium. The first spiral groove 7, the second spiral groove 8 and the third spiral groove 9 are distributed on the outer surfaces of the roller body 1, the connecting plate 6 and the roller neck 2, which increases the contact area between the cooling medium and the continuous casting roller and improves the cooling efficiency.
[0048] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.
Claims
1. A continuous casting roller for a continuous casting machine, characterized in that: The invention comprises a roller body (1), a roller neck (2), and a bearing seat (3); the outer surface of the roller body (1) is provided with a high-temperature resistant layer; the interior of the roller body (1) is provided with a heat-insulating layer and a high-strength support layer; the heat-insulating layer comprises a cavity (4); the high-strength support layer comprises a support sleeve (5); the cavity (4) is opened between the roller body (1) and the support sleeve (5); a first reinforcing rib (51) is fixedly connected between the outer surface of the support sleeve (5) and the inner wall of the roller body (1); and three groups of the first reinforcing ribs (51) are provided along the length direction of the roller body (1); the roller neck (2) is located at both ends of the roller body (1); and the bearing seat (3) is fixed to the outer surface of the roller neck (2).
2. A continuous casting roller for a continuous casting machine according to claim 1, characterized in that: Both ends of the roller body (1) are fixedly connected to a connecting disk (6), the connecting disk (6) is conical, and the small end of the connecting disk (6) is fixedly connected to the roller neck (2).
3. The continuous casting roller for a continuous casting machine according to claim 1, characterized in that: The inner wall of the support sleeve (5) is fixedly connected with second reinforcing ribs (10) distributed at equal intervals, and each of the second reinforcing ribs (10) is in a cross-shaped shape.
4. The continuous casting roller for a continuous casting machine according to claim 1, characterized in that: Each group of the first reinforcing ribs (51) consists of six circumferentially distributed reinforcing ribs, and the cross-section of the reinforcing ribs is hexagonal.
5. The continuous casting roller for a continuous casting machine according to claim 1, characterized in that: An arc plate (11) is fixedly connected to the intersection of the roller body (1) and the connecting disk (6), and the middle part of the surface of the roller body (1) forms a concave surface through the arc plate (11).
6. The continuous casting roller for a continuous casting machine according to claim 2, characterized in that: The outer surface of the roller body (1) is provided with a first spiral groove (7), the outer surface of the roller neck (2) is provided with a third spiral groove (9), and the outer surface of the connecting plate (6) is provided with a second spiral groove (8).
7. The continuous casting roller for a continuous casting machine according to claim 1, characterized in that: The outer surface of the roller body (1) is sprayed with a high-temperature resistant ceramic coating.