A cast roll sleeve anti-circumferential slip structure

Abstract

This utility model relates to the field of casting roll technology, specifically disclosing a structure for preventing circumferential slippage of a casting roll sleeve. The structure comprises several anti-circumferential slippage components located at both ends of the casting roll sleeve and connected to the roll core inside the sleeve. Each anti-circumferential slippage structure includes an anti-rotation component, a sealing ring, and a nylon rod. The anti-rotation component comprises, integrally formed, a connecting section one, a connecting section two, a sealing section one, a mating section, a sealing section two, and a positioning section arranged sequentially from bottom to top. This utility model ensures the tightness of the connection between the casting roll sleeve and the roll core, preventing relative displacement of the casting roll sleeve during use and ensuring synchronous rotation with the roll core, greatly improving stability during use. The sealing ring design ensures a tight seal between the casting roll sleeve and the anti-rotation component, and the nylon rod filling design ensures that the anti-rotation component will not fall off during use, further improving the stability of the anti-circumferential slippage structure.

Description

Technical Field

[0001] This utility model relates to the field of casting and rolling roll technology, specifically a structure for preventing circumferential slippage of a casting and rolling roll sleeve. Background Technology

[0002] Currently, slippage between the cast roll sleeve and the roll core is a common problem during the use of cast rolls in the workshop. This is mainly due to impurities generated in the internal circulating water over a long period of time, leading to scale and corrosion inside the roll core. This reduces the contact area between the cast roll sleeve and the roll core, causing slippage. Additionally, excessive external clamping force on the cast roll sleeve during initial use can also cause slippage. Furthermore, as the wall thickness of the cast roll sleeve gradually decreases during use, the tension decreases, resulting in a mismatch between internal and external friction and causing slippage.

[0003] Based on this, this application proposes a structure to prevent circumferential slippage of the casting and rolling mill roll sleeve. Summary of the Invention

[0004] The purpose of this invention is to provide a structure to prevent circumferential slippage of the cast roll sleeve, which ensures the tightness of the connection between the cast roll sleeve and the roll core, ensures that the cast roll sleeve will not have relative displacement during use, ensures synchronous rotation with the roll core, achieves the purpose of preventing circumferential slippage of the cast roll sleeve, and greatly improves the stability during use.

[0005] To solve the above technical problems, this utility model provides a structure for preventing circumferential slippage of a cast roll sleeve. The structure has several anti-circumferential slippage components located at both ends of the cast roll sleeve and connected to the roll core inside the cast roll sleeve. Each anti-circumferential slippage component includes an anti-rotation component, a sealing ring, and a nylon rod. The anti-rotation component includes a connecting section 1, a connecting section 2, a sealing section 1, a mating section, a sealing section 2, and a positioning section, which are integrally formed and arranged from bottom to top. The cast roll sleeve and the roll core are respectively provided with mounting holes 1 and 2, which are the same number as the anti-circumferential slippage components. The center lines of the corresponding mounting holes 1 and 2 are aligned.

[0006] The first connecting section extends into the second mounting hole and is threaded thereto. The lower end of the second connecting section is embedded in the second mounting hole and is interference-fitted with it. The upper end is located in the first mounting hole and is interference-fitted with it. The first sealing section, the mating section, the second sealing section, and the positioning section are all located in the first mounting hole. There are two sealing rings, which are respectively fitted on the outside of the first sealing section and the second sealing section. The mating section is interference-fitted with the inner wall of the first mounting hole. The top of the positioning section has a groove for inserting a tool. The nylon rod is set in the first mounting hole and connected to the positioning section. The upper end of the nylon rod is flush with the outer wall of the casting roll sleeve.

[0007] Furthermore, the plurality of anti-circumferential slippage structures on each end of the casting and rolling roll sleeve are arranged in a circumferential direction, and there are at least three anti-circumferential slippage structures that are equally spaced.

[0008] Furthermore, the second mounting hole is provided with a second step, and the lower outer periphery of the second connecting section is provided with a tapered section. The bottom of the tapered section abuts against the second step. The outer diameter of the second connecting section is larger than the outer diameter of the first connecting section. The outer diameters of the second connecting section, the mating section, and the positioning section are the same.

[0009] Furthermore, a step is provided inside the mounting hole, the bottom of the nylon rod abuts against the step, the nylon rod is interference-fitted with the inner wall of the mounting hole, and the outer diameter of the nylon rod is larger than the outer diameter of the positioning section.

[0010] Furthermore, the groove is a straight groove or a cross groove.

[0011] Furthermore, both ends of the cast roll sleeve and the roll core are provided with pressure caps, the pressure caps have protrusions that are engaged in the slots of the roll core, and a rubber ring is provided between the protrusions and the slots.

[0012] The beneficial effects of this utility model are:

[0013] 1. The anti-circumferential slippage structure of this utility model ensures the tightness of the connection between the cast roll sleeve and the roll core, ensuring that the cast roll sleeve will not experience relative displacement during use and will rotate synchronously with the roll core, thus achieving the purpose of preventing circumferential slippage of the cast roll sleeve and greatly improving the stability during use. Specifically, the design of the anti-rotation component ensures the stability and reliability of the connection between the cast roll sleeve and the roll core, and the design of the sealing ring ensures the sealing performance between the cast roll sleeve and the anti-rotation component, improving the sealing effect during use. Furthermore, the combination of the nylon rod filling design ensures that the anti-rotation component will not fall off during use, further improving the stability of the anti-circumferential slippage structure.

[0014] 2. The present invention, through the design of step one and step two, can increase the contact area between the anti-rotation component and mounting holes one and two, thereby improving the stability and reliability of the connection. This design allows the anti-rotation component to better disperse stress when under force, reducing loosening or damage caused by stress concentration, and the step design helps to improve the sealing performance of the connection.

[0015] 3. Through the anti-circumferential slippage structure design of this utility model, even if the casting roll sleeve becomes thinner during use, resulting in changes in binding force and tension, slippage will not occur. Furthermore, if the casting roll sleeve becomes thinner during use, the exposed nylon rod can be cut off without affecting the use of the internal anti-rotation component, and the connection between the casting roll sleeve and the roll core can still be achieved, thus improving the service life. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an application diagram of the anti-circumferential slippage structure of this utility model;

[0018] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0019] Figure 3 This is a schematic diagram of the anti-rotation component of the anti-circumferential slippage structure of this utility model;

[0020] Figure 4 yes Figure 3 Top view;

[0021] In the diagram: 1-Anti-circumferential slippage structure, 2-Cast roll sleeve, 3-Roller core, 4-Pressure cap, 5-Rubber ring, 11-Anti-rotation component, 12-Sealing ring, 13-Nylon rod, 21-Step 1, 31-Step 2, 32-Slot, 41-Protrusion, 111-Connecting section 1, 112-Connecting section 2, 1121-Conical section, 113-Sealing section 1, 114-Matching section, 115-Sealing section 2, 116-Positioning section, 1161-Groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In one specific embodiment of this utility model, such as Figure 1-4As shown, a casting roll sleeve anti-circumferential slip structure is provided. The anti-circumferential slip structure 1 has several parts and is located at both ends of the casting roll sleeve 2 and connected to the roll core 3 inside the casting roll sleeve 2. Each anti-circumferential slip structure 1 includes an anti-rotation component 11, a sealing ring 12 and a nylon rod 13. The anti-rotation component 11 includes an integrally formed connecting section 111, a connecting section 2 112, a sealing section 113, a mating section 114, a sealing section 2 115 and a positioning section 116 arranged sequentially from bottom to top. The casting roll sleeve 2 and the roll core 3 are respectively provided with mounting holes 1 and 2, which are the same number as the anti-circumferential slip structure 1. The center lines of the corresponding mounting holes 1 and 2 are aligned.

[0024] Connecting section 111 extends into mounting hole 2 and is threadedly connected thereto. The lower end of connecting section 212 is embedded in mounting hole 2 with an interference fit, and the upper end is located in mounting hole 1 with an interference fit. Sealing section 113, mating section 114, sealing section 215, and positioning section 116 are all located in mounting hole 1. There are two sealing rings 12, which are respectively fitted on the outside of sealing section 113 and sealing section 215. The mating section has an interference fit with the inner wall of mounting hole 1. The top of positioning section 116 has a groove 1161 for inserting tools. Nylon rod 13 is set in mounting hole 1 and connected to positioning section. The upper end of nylon rod 13 is flush with the outer wall of casting roll sleeve 2. Here, flush means that the upper end of nylon rod 13 is machined flat with the outer diameter of casting roll sleeve 2 to ensure that there is no unevenness.

[0025] This utility model's anti-circumferential slippage structure for cast roll sleeves ensures the tightness of the connection between the cast roll sleeve and the roll core, preventing relative movement of the cast roll sleeve during use and ensuring synchronous rotation with the roll core. This achieves the purpose of preventing circumferential slippage of the cast roll sleeve, greatly improving stability during use. Furthermore, the sealing ring design ensures the sealing between the cast roll sleeve and the anti-rotation component, preventing water leakage even during continuous cooling operation, thus improving the sealing effect during use. In addition, the nylon rod filling design ensures that the anti-rotation component will not fall off during use, further improving the stability of the anti-circumferential slippage structure.

[0026] Specifically, several anti-circumferential slippage structures 1 on each end of the casting roll sleeve 2 are arranged in a circumferential direction, and there are at least three anti-circumferential slippage structures 1 distributed at equal distances on the outer diameter circumference of the casting roll sleeve 2; in this embodiment, three mounting holes 1 and corresponding mounting holes 2 are drilled at 120° circumferentially at both ends of the casting roll sleeve 2; a step 2 31 is provided in the mounting hole 2, and a tapered section 1121 is provided on the lower outer circumference of the connecting section 2 112. The bottom of the tapered section 1121 abuts against the step 2 31. The outer diameter of the connecting section 2 112 is larger than the outer diameter of the connecting section 1 111. The outer diameters of the connecting section 2 112, the mating section 114 and the positioning section 116 are the same.

[0027] The design of steps one and two increases the contact area between the anti-rotation component 11 and mounting holes one and two, thereby improving the stability and reliability of the connection. This design allows the anti-rotation component 11 to better distribute stress under load, reducing loosening or damage caused by stress concentration. Furthermore, the step design helps improve the sealing performance of the connection.

[0028] Specifically, a step 21 is provided inside the mounting hole, and the bottom of the nylon rod 13 abuts against the step 21. The nylon rod 13 is interference-fitted with the inner wall of the mounting hole, and the outer diameter of the nylon rod 13 is larger than the outer diameter of the positioning section 116.

[0029] Specifically, groove 1161 is a slotted groove or a cross-shaped groove, such as... Figure 4 As shown, a slotted groove is used in this embodiment. During installation, the tool can be inserted into the slotted groove to thread the anti-rotation component into the second mounting hole, improving the ease of operation.

[0030] Specifically, pressure caps 4 are provided on the outer sides of both ends of the casting roll sleeve 2 and the roll core 3. The pressure cap 4 has a protrusion 41 inside and is locked in the groove 32 of the roll core 3. A rubber ring 5 is provided between the protrusion 41 and the groove 32. The design of the pressure cap and the protrusion further strengthens the connection between the casting roll sleeve and the roll core, further reduces the relative sliding between the two, improves the stability during use, and the design of the rubber ring here can improve the sealing performance.

[0031] The installation principle of this utility model is as follows:

[0032] First, install the sealing rings 12 at sealing section 113 and sealing section 215. Then, insert the anti-rotation component 11 with the sealing rings 12 into the mounting hole 1. Use a tool to thread the connecting section 111 of the anti-rotation component into the mounting hole 2. Install the nylon rod 13 on top of the anti-rotation component 11. Here, interference fit and glue can be used to fix the nylon rod 13 to the casting roll sleeve 2 to prevent the nylon rod 13 from loosening and falling out during rotation. This also ensures that the anti-rotation component 11 will not fall off during use, further improving the stability of the anti-circumferential slippage structure.

[0033] With the anti-circumferential slippage structure design of this utility model, even if the casting roll sleeve becomes thinner during use, causing changes in binding force and tension, slippage will not occur. Furthermore, if the casting roll sleeve becomes thinner during use, the exposed nylon rod can be cut off without affecting the use of the internal anti-rotation component, and the connection between the casting roll sleeve and the roll core can still be achieved, thus improving the service life.

[0034] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A structure for preventing circumferential slippage of a cast rolling mill roll sleeve, characterized in that, The anti-circumferential slip structure (1) has several of them located at both ends of the cast roll sleeve (2) and connected to the roll core (3) inside the cast roll sleeve (2). Each anti-circumferential slip structure (1) includes an anti-rotation component (11), a sealing ring (12) and a nylon rod (13). The anti-rotation component (11) includes an integrally formed connecting section one (111), a connecting section two (112), a sealing section one (113), a mating section (114), a sealing section two (115) and a positioning section (116) arranged sequentially from bottom to top. The cast roll sleeve (2) and the roll core (3) are respectively provided with mounting holes one and two, which are the same number as the anti-circumferential slip structure (1). The center lines of the corresponding mounting holes one and mounting holes two are aligned. The first connecting section (111) extends into the second mounting hole and is threaded to it. The lower end of the second connecting section (112) is embedded in the second mounting hole and is press-fitted with it. The upper end is located in the first mounting hole and is press-fitted with it. The first sealing section (113), the mating section (114), the second sealing section (115), and the positioning section (116) are all located in the first mounting hole. The sealing ring (12) has two rings and is respectively fitted on the outside of the first sealing section (113) and the second sealing section (115). The mating section is press-fitted with the inner wall of the first mounting hole. The top of the positioning section (116) has a groove (1161) for inserting a tool. The nylon rod (13) is set in the first mounting hole and connected to the positioning section. The upper end of the nylon rod (13) is flush with the outer wall of the casting roll sleeve (2).

2. The anti-circumferential slippage structure for casting and rolling roll sleeves according to claim 1, characterized in that, The anti-circumferential slip structure (1) on each end of the casting roll sleeve (2) is arranged in a circumferential direction, and the anti-circumferential slip structure (1) has at least three and is distributed at equal distances.

3. The anti-circumferential slippage structure for casting and rolling roll sleeves according to claim 1, characterized in that, The second mounting hole is provided with a second step (31), and the lower outer periphery of the second connecting section (112) is provided with a tapered section (1121). The bottom of the tapered section (1121) abuts against the second step (31). The outer diameter of the second connecting section (112) is larger than the outer diameter of the first connecting section (111). The outer diameters of the second connecting section (112), the mating section (114), and the positioning section (116) are the same.

4. The anti-circumferential slippage structure for casting and rolling roll sleeves according to claim 1, characterized in that, The mounting hole is provided with a step (21), the bottom of the nylon rod (13) abuts against the step (21), the nylon rod (13) is interference-fitted with the inner wall of the mounting hole, and the outer diameter of the nylon rod (13) is larger than the outer diameter of the positioning section (116).

5. The anti-circumferential slippage structure for casting and rolling roll sleeves according to claim 1, characterized in that, The groove (1161) is a straight groove or a cross groove.

6. The anti-circumferential slippage structure for casting and rolling roll sleeves according to claim 1, characterized in that, Both ends of the cast roll sleeve (2) and the roll core (3) are provided with pressure caps (4). The pressure caps (4) have protrusions (41) inside and are locked in the slots (32) of the roll core (3). A rubber ring (5) is provided between the protrusions (41) and the slots (32).

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