Novel roller inner connecting sleeve structure
Through the interference matching structure between the roll seat and the inner joint hole, the problems of wear and dimensional deviation of the inner joint sleeve of the roll are solved, and the high-precision and reliable connection between the roll and the roll mill is achieved, reducing assembly complexity and cost.
Patent Information
- Application Number
- CN202420789576.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing roll inner sleeves are prone to wear and fall during frequent assembly, resulting in dimensional deviations and affecting the accuracy and reliability of the components.
The interference fit structure between the roll seat and the inner joint hole is adopted. Through the surface treatment of the inner joint hole and the double-layer interference fit design, the assembly steps are reduced, the dimensional deviation is avoided, and the accuracy and reliability are improved.
No need to use an internal socket, which reduces installation steps, improves the connection accuracy and stability between the roll and the mill, and reduces cost and resource consumption.
Smart Images
Figure CN222175378U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of processing, and in particular to a novel roller inner sleeve structure. Background Art
[0002] Rollers are commonly used equipment in metal processing and play a vital role in the rolling process. They can realize functions such as plastic deformation, shape adjustment, and surface treatment of metal materials. They are one of the key equipment for metal processing and manufacturing. Rolling work is usually carried out by applying appropriate pressure and driving force to the rollers through the rolling mill.
[0003] The roller sleeve refers to the sleeve installed inside the roller. It is an important component for supporting the roller and transmitting the rolling force. It is used to connect the roller to the rolling mill. Therefore, the roller sleeve plays a very important role in the normal operation of the roller and the rolling process.
[0004] In the prior art, there are a rolling mill for driving the rolls to rotate, a roll seat arranged on the rolling mill, a roll for rolling, and a roll inner sleeve arranged in the roll. The roll inner sleeve is assembled with the roll by interference fit, and the inner sleeve is inserted into the roll seat and pressure is applied to fix it tightly on the roll seat, thereby connecting the rolling mill with the roll and performing rolling work.
[0005] However, since the rollers need to be frequently installed and removed from the machine, the inner sleeves are prone to wear and fall off, resulting in dimensional deviations that affect the accuracy and reliability of the components. Utility Model Content
[0006] In order to improve the existing inner sleeve wear, falling and other phenomena, resulting in dimensional deviation, thereby affecting the accuracy and reliability of the components, the present application provides a roller inner sleeve structure with high accuracy and reliability.
[0007] The novel roller inner sleeve structure provided in the present application adopts the following technical solution:
[0008] A novel roller inner sleeve structure comprises a rolling mill and a roller arranged on the rolling mill, wherein the rolling mill is provided with a roller seat, and an inner connection hole is opened on the sides of the rollers which are away from each other, the inner connection hole is opened corresponding to the shape of the roller seat, the cross-sectional area of the inner connection hole is slightly smaller than the cross-sectional area of the roller seat, and the inner connection hole is surface treated.
[0009] By adopting the above technical solution, during assembly, by aligning the inner hole with the roll seat, and driving the roll seat to extend into the inner hole, the roll seat is interference-fitted with the inner hole, and the inner sleeve is not required, which reduces the installation steps and is beneficial to cost control and resource utilization. The roll is directly connected to the rolling mill, which can also enable the roll to be assembled normally, and is also beneficial to avoid dimensional deviation caused by assembly reasons, making the inner diameter dimension tolerance more accurate, reducing the matching clearance or interference, and thus improving the accuracy and reliability of the components.
[0010] Preferably, the rolling roller includes a rolling portion for extruding and rolling the material and connecting portions arranged at both ends of the rolling portion, the connecting portions are distributed along the length direction of the rolling portion, the connecting portions and the rolling portion are on the same straight line, and the cross-sectional area of the connecting portions is smaller than the cross-sectional area of the rolling portion.
[0011] By adopting the above technical solution, the connecting part provides good support and fixation for the roller, thereby preventing the roller from generating unnecessary vibration and deformation during operation.
[0012] Preferably, the rolling portion and the connecting portion are both made of a strong metal material, and the metal material includes alloy steel.
[0013] By adopting the above technical solution, alloy steel is a steel containing multiple metal elements, which has excellent hardness, strength and wear resistance, and is conducive to withstanding high temperature and high frequency working conditions.
[0014] Preferably, a first transition edge is further provided on the side of the roll seat facing away from the rolling mill, and the first transition edge surrounds the edge of the roll seat.
[0015] By adopting the above technical solution, the roll seat can be extended into the inner hole more smoothly through the transition of the first transition edge, so that the roll seat can be more conveniently interference-fitted with the inner hole.
[0016] Preferably, the roll seat is further provided with an annular groove, which is provided on the side of the roll seat away from the rolling mill, and a convex ring is provided at the bottom of the inner hole, which is provided with a shape corresponding to the annular groove.
[0017] By adopting the above technical solution, when the roll seat extends into the inner hole, the convex ring extends into the ring groove, so that the roll seat and the inner hole are more accurately aligned.
[0018] Preferably, the thickness of the convex ring is slightly greater than the thickness of the annular groove, so that the convex ring is interference fit in the annular groove.
[0019] By adopting the above technical solution, when installing the rolling mill rolls, the inner hole and the rolling mill seat are aligned with each other, and the rolling mill rolls are driven so that the rolling mill seat is extended into the inner hole, and the rolling mill seat and the inner hole are interference fit. At the same time, the convex ring is extended into the ring groove, and the convex ring and the ring groove are interference fit. Through the double-layer interference fit, the connection between the rolling mill and the rolling mill rolls is more stable.
[0020] Preferably, both the inner and outer surfaces of the convex ring are surface treated.
[0021] By adopting the above technical solution, the hardness and strength of the inner and outer surfaces of the convex ring are increased, which is conducive to achieving the structural strength of the interference fit between the convex ring and the ring groove.
[0022] Preferably, a second transition edge is further provided on the side of the convex ring facing the annular groove, and the second transition edge surrounds the convex ring.
[0023] By adopting the above technical solution, the convex ring can be inserted into the annular groove more smoothly through the transition of the second transition edge, so that the convex ring can be more conveniently interference-fitted in the annular groove.
[0024] In summary, the present application includes at least one of the following beneficial technical effects:
[0025] 1. During assembly, by aligning the inner hole with the roll seat and driving the roll seat to extend into the inner hole, the roll seat is interference-fitted with the inner hole, and the inner sleeve is not required, which reduces the installation steps and is beneficial to cost control and resource utilization. The roll is directly connected to the rolling mill, which can also enable the roll to be assembled normally, and is also beneficial to avoid dimensional deviations caused by assembly reasons, making the inner diameter dimension tolerance more accurate, reducing the matching clearance or interference, thereby improving the accuracy and reliability of the components;
[0026] 2. Therefore, when installing the roller, the inner hole and the roller seat are aligned with each other, and the roller is driven to extend the roller seat into the inner hole, so that the roller seat and the inner hole have an interference fit, and at the same time, the convex ring is extended into the ring groove, so that the convex ring and the ring groove have an interference fit. Through the double-layer interference fit, the connection between the rolling mill and the roller is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.
[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.
[0029] Figure 3 It is a schematic diagram of the overall structure of the second embodiment of the present application.
[0030] Figure 4 yes Figure 3 Enlarged view of point B in the middle.
[0031] Explanation of the reference numerals: 1. rolling mill; 2. rolling roller; 21. rolling section; 22. connecting section; 3. rolling roller seat; 4. internal hole; 5. first transition edge; 6. annular groove; 7. convex ring; 8. second transition edge. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] Embodiment 1:
[0034] A new type of roller inner sleeve structure, refer to Figure 1 , including a rolling mill 1 and a rolling roller 2 arranged on the rolling mill 1.
[0035] Reference Figure 1 and Figure 2 The rolling mill 1 is a relatively mature technology in the prior art and will not be described in detail here. The rolling mill 1 is provided with 2 roller seats, which are arranged in a cylindrical shape and are used to install the rollers 2. There are two roller seats, which are arranged on both sides of the rolling mill 1 opposite to each other.
[0036] Reference Figure 1 and Figure 2 The roller 2 includes a cylindrical rolling part 21 and connecting parts 22 arranged at both ends of the rolling part 21. The rolling part 21 is distributed along the direction in which the two rollers 2 seats face each other. The rolling part 21 is used to extrude and roll the material, thereby rolling it into shape. The connecting part 22 is also cylindrical and distributed along the direction in which the two rollers 2 seats face each other. The connecting part 22 and the rolling part 21 are on the same central axis, and the radius of the connecting part 22 is smaller than the radius of the rolling part 21. The connecting part 22 provides good support and fixation for the roller 2, thereby preventing the roller 2 from generating unnecessary vibration and deformation during operation.
[0037] Reference Figure 1 and Figure 2 The rolling portion 21 and the connecting portion 22 are both made of solid metal materials. In this embodiment, the rolling portion 21 and the connecting portion 22 are both made of alloy steel. Alloy steel is a steel material containing multiple metal elements and has excellent hardness, strength and wear resistance, which is conducive to withstanding high temperature and high frequency working conditions.
[0038] Continue to refer to Figure 1 and Figure 2, the sides of the connecting parts 22 of the rollers 2 facing away from each other are provided with internal holes 4, which are opened corresponding to the shape of the roller 2 seat, and the cross-sectional area of the internal holes 4 is slightly smaller than the cross-sectional area of the roller 2 seat, so that the roller 2 seat is interference-fitted with the internal holes 4, so that when the roller 2 is installed, the internal holes 4 and the roller 2 seat are aligned with each other, and the roller 2 is driven so that the roller 2 seat extends into the internal holes 4. The internal holes 4 are surface treated, and the surface treatment includes heat treatment, surface carburizing and other methods. Surface treatment is a relatively mature technology in the prior art, and will not be described in detail here. The hardness and strength of the hole wall of the internal holes 4 are increased through surface treatment, which is conducive to achieving the structural strength of the interference fit between the roller 2 seat and the internal holes 4. Therefore, there is no need to use an internal sleeve, which reduces the installation steps, and is conducive to cost control and resource utilization. The roller 2 is directly connected to the rolling mill 1, which can also enable the roller 2 to be assembled normally. At the same time, it is beneficial to avoid dimensional deviation caused by assembly reasons, make the inner diameter dimension tolerance more precise, reduce the fitting clearance or interference, thereby improving the accuracy and reliability of the components.
[0039] In addition, refer to Figure 1 and Figure 2 A first transition edge 5 is also provided on the side where the two roller seats face each other. The first transition edge 5 surrounds the edge of the two roller seats, so that the two roller seats can be inserted into the internal connection hole 4 more smoothly through the transition of the first transition edge 5, so that the two roller seats can be more conveniently interference-fitted in the internal connection hole 4.
[0040] The implementation principle of this embodiment is: during assembly, the inner hole 4 and the roller 2 seat are aligned with each other, and the roller 2 seat is driven to extend into the inner hole 4, so that the roller 2 seat is interference-fitted with the inner hole 4, and the two rollers 2 seats are extended into the inner holes 4 on the two connecting parts 22 one by one, so that the inner sleeve is not needed, the installation steps are reduced, and it is beneficial to cost control and resource utilization. The roller 2 is directly connected to the rolling mill 1, which can also enable the normal assembly of the roller 2, and at the same time is beneficial to avoid dimensional deviation caused by assembly reasons, make the inner diameter dimension tolerance more accurate, reduce the matching clearance or interference, and thus improve the accuracy and reliability of the assembly.
[0041] Embodiment 2:
[0042] The difference between this embodiment and the first embodiment lies in the difference between the roller 2 seat and the internal connection hole 4 .
[0043] Reference Figure 3 and Figure 4The roller 2 seat is further provided with an annular ring groove 6 on the basis of the first embodiment. The ring groove 6 is provided on the side of the roller 2 seat away from the rolling mill 1, and the ring groove 6 extends into the roller 2 seat along the direction in which the two rollers 2 seats face each other. A convex ring 7 is provided at the bottom of the inner hole 4, and the convex ring 7 is arranged corresponding to the shape of the ring groove 6. When the roller 2 seat extends into the inner hole 4, the convex ring 7 extends into the ring groove 6, so that the roller 2 seat and the inner hole 4 are more accurately aligned.
[0044] Reference Figure 3 and Figure 4 The thickness of the convex ring 7 is slightly larger than the thickness of the annular groove 6, so that the convex ring 7 is interference-fitted in the annular groove 6. Therefore, when the roller 2 is installed, the inner hole 4 and the roller 2 seat are aligned with each other, and the roller 2 is driven to make the roller 2 seat extend into the inner hole 4, so that the roller 2 seat and the inner hole 4 are interference-fitted, and at the same time, the convex ring 7 is extended into the annular groove 6, so that the convex ring 7 and the annular groove 6 are interference-fitted. Through the double-layer interference fit, the connection between the rolling mill 1 and the roller 2 is more stable.
[0045] Continue to refer to Figure 3 and Figure 4 The inner and outer surfaces of the convex ring 7 are surface treated, so that the hardness and strength of the inner and outer surfaces of the convex ring 7 are increased, which is conducive to achieving the structural strength of the interference fit between the convex ring 7 and the annular groove 6.
[0046] In addition, refer to Figure 3 and Figure 4 A second transition edge 8 is also provided on the side of the convex ring 7 facing the annular groove 6. The second transition edge 8 surrounds the convex ring 7, so that the convex ring 7 can be inserted into the annular groove 6 more smoothly through the transition of the second transition edge 8, so that the convex ring 7 can be more conveniently interference-fitted in the annular groove 6.
[0047] The implementation principle of this embodiment is as follows: during assembly, the inner hole 4 and the roller seat 2 are aligned with each other, and the roller seat 2 is driven to extend into the inner hole 4, so that the roller seat 2 is interference-fitted with the inner hole 4, and the convex ring 7 is extended into the annular groove 6, so that the convex ring 7 is interference-fitted with the annular groove 6. By extending the two roller seats 2 into the inner holes 4 on the two connecting parts 22 one by one, and the two convex rings 7 are extended into the two annular grooves 6 one by one, it is possible to eliminate the need for an inner sleeve, reduce the number of installation steps, and make the connection between the rolling mill 1 and the roller 2 more stable through the double-layer interference fit, further improving the accuracy and reliability of the assembly.
[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A novel roller inner sleeve structure, comprising a rolling mill (1) and a roller (2) arranged on the rolling mill (1), Features: The rolling mill (1) is provided with a roller (2) seat, and an internal connection hole (4) is provided on the side of the rollers (2) facing away from each other. The internal connection hole (4) is provided corresponding to the shape of the roller (2) seat, the cross-sectional area of the internal connection hole (4) is slightly smaller than the cross-sectional area of the roller (2) seat, and the internal connection hole (4) is surface treated.
2. According to the new roller inner sleeve structure described in claim 1, Features: The rolling roller (2) comprises a rolling portion (21) for extruding and rolling a material, and connecting portions (22) arranged at both ends of the rolling portion (21), wherein the connecting portions (22) are distributed along the length direction of the rolling portion (21), the connecting portions (22) and the rolling portion (21) are located on the same straight line, and the cross-sectional area of the connecting portions (22) is smaller than the cross-sectional area of the rolling portion (21).
3. According to the new roller inner sleeve structure of claim 2, Features: The rolling part (21) and the connecting part (22) are both made of a strong metal material, and the metal material includes alloy steel.
4. According to the new roller inner sleeve structure of claim 1, Features: A first transition edge (5) is also provided on the side of the rolling roller (2) seat facing away from the rolling mill (1), and the first transition edge (5) surrounds the edge of the rolling roller (2) seat.
5. According to the new roller inner sleeve structure of claim 1, Features: The roller (2) seat is also provided with an annular groove (6), which is provided on the side of the roller (2) seat facing away from the rolling mill (1), and a convex ring (7) is provided at the bottom of the inner hole (4), and the convex ring (7) is provided in a shape corresponding to the annular groove (6).
6. A new roller inner sleeve structure according to claim 5, Features: The thickness of the convex ring (7) is slightly greater than the thickness of the annular groove (6), so that the convex ring (7) is interference-fitted into the annular groove (6).
7. A new roller inner sleeve structure according to claim 5, Features: The inner and outer surfaces of the convex ring (7) are both surface treated.
8. According to the novel roller inner sleeve structure of claim 5, Features: A second transition edge (8) is also provided on the side of the convex ring (7) facing the annular groove (6), and the second transition edge (8) surrounds the convex ring (7).