Ring taper sleeve for high-speed wire finishing roll
By designing a fine roll ring cone sleeve suitable for high-speed wire rolling mills, the problems of insufficient static friction and disassembly difficulties in the prior art are solved, and higher static friction and simpler disassembly process are achieved, which improves the operating rate of the rolling mill and reduces production costs.
Patent Information
- Application Number
- CN202422197930.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the existing high-speed wire rolling mill, the cone sleeve design of the finishing mill group is unreasonable, resulting in insufficient static friction force of the roller ring, which is prone to insurmountable axial component of the rolling force, and it is difficult to disassemble, which increases the labor intensity of the operator.
A high-speed wire fine rolling roller ring cone sleeve is designed, including a fixed-distance ring, a rolling ring, a roll ring, a cone sleeve and a roller shaft. A boss is provided at the top of the outer wall of the tapered sleeve, and a tapered surface and a mounting groove are provided inside. The material is 1Cr13 or 2Cr13, and the outer diameter is suitable for the inner diameter of the roller ring.
Through the reasonable design of the tapered sleeve, the static friction force of the roller ring is increased, the roller ring is avoided slippage, and the cooperation between the roller box roller shaft, roller ring and tapered sleeve is ensured to be reasonable, the disassembly process is simplified, the labor intensity of the operator is reduced, the mill operation rate is increased, and the production cost is reduced.
Smart Images
Figure CN223011483U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-speed wire rod production in the metallurgical industry, in particular to a high-speed wire rod finishing roll ring taper sleeve. Background Art
[0002] The fifth-generation Morgan high-speed wire rod rolling mill production line is the main model currently used for high-speed wire rod production in China. Its main production process flow includes billet loading, heating, rough rolling, medium rolling, pre-finishing rolling, finishing rolling, water cooling, laying head, Stelmor air cooling line, coiling, P / F line, trimming, packing, weighing, uncoiling, and warehousing. Its pass design is generally: box - square - oval - round - oval - round, etc. According to the operating characteristics of the high-speed continuous rolling production line, the finishing mill unit is one of the most core equipment of the fifth-generation Morgan high-speed wire rod rolling mill. Its main function is the final rolling tool, which precisely shapes the rolled piece provided by the pre-finishing rolling to achieve the required final product size and dimensional accuracy requirements. Generally, the length of the finishing mill of a high-speed wire rod rolling mill is about 7 - 8m, and the finishing mill generally has 8 - 10 passes, with a 45-degree top angle or 15 / 75-degree skew arrangement, and is collectively driven. By different cone box and roll box transmission ratios, the continuous rolling relationship between two adjacent units is ensured, and micro-tension rolling within the overall unit is realized, thereby reducing the steel piling accident and ensuring the uniform dimensionality of the product throughout the length. Generally, powder metallurgy tungsten carbide roll rings are selected as the rolling tools for finishing rolling. The advantages are high hardness and good wear resistance. Its outer diameter is generally about 150mm - 230mm. The cone sleeve, also known as the tapered bushing, emerged with the development of modern roll technology and is used to fix the cemented carbide (WC) roll ring on the roll shaft of the roll box. It relies on the cone sleeve being extruded and expanded under external force to generate a strong static friction force to ensure the precise and stable operation of the roll shaft driving the roll ring. The roll ring is assembled on the roll shaft of the roll box through the cone sleeve, and the rolled piece is rolled and formed through the pass on the roll ring. The rationality of the cone sleeve design ensures that it can not only meet the production needs but also ensure a simple structure and convenient disassembly. The inner surface shape of the cone sleeve is conical, with the same taper as the roll shaft of the roll box. The outer surface of the cone sleeve is cylindrical. The outer diameter of the outer surface of the cone sleeve and the inner surface of the roll ring are in a transition fit, ensuring a reasonable fit among the roll shaft of the roll box, the roll ring, and the cone sleeve. It can not only make the roll ring generate a large enough static friction force to overcome the axial component of the rolling force but also ensure that the disassembly and assembly operations can be carried out normally using the roll-changing tool. If the outer diameter of the cone sleeve is too large, it is easy to cause scratches on the inner surface of the roll ring and is difficult to disassemble. If the outer diameter of the cone sleeve is too small, under the same external force acting on the cone sleeve, the cone sleeve is not deformed and expanded enough by extrusion, resulting in the static friction force generated among the roll shaft of the roll box, the roll ring, and the cone sleeve being insufficient to overcome the axial component of the rolling force. During use, relative displacement and dropping accidents are likely to occur among the roll shaft of the roll box, the roll ring, and the cone sleeve. Similarly, if the taper of the inner surface of the cone sleeve does not match the roll shaft of the roll box and no surface contact is formed between the two, under the same external force acting on the cone sleeve, the cone sleeve is not deformed and expanded enough by extrusion, resulting in the static friction force generated among the roll shaft of the roll box, the roll ring, and the cone sleeve being insufficient to overcome the axial component of the rolling force. During use, relative displacement and dropping accidents are likely to occur among the roll shaft of the roll box, the roll ring, and the cone sleeve.Therefore, by designing and inventing a high-speed wire rod finishing roll ring taper sleeve, it is ensured that the cooperation among the roll box roll shaft, the roll ring, and the taper sleeve is reasonable. It can not only make the roll ring generate a large enough static friction force to overcome the axial component of the rolling force, but also ensure that the disassembly and assembly operations can be carried out normally using the roll removal tool. At the same time, it is necessary to ensure that the structure is simple, the disassembly is convenient, the design is reasonable, the labor intensity of the operator is reduced, the operation rate of the rolling mill is improved, and the production cost is reduced. Summary of the Utility Model
[0003] The present utility model provides a high-speed wire rod finishing roll ring taper sleeve to solve the technical problems existing in the above-mentioned background technology.
[0004] The purpose and effect of a high-speed wire rod finishing roll ring taper sleeve of the present utility model are achieved by the following specific technical means: A high-speed wire rod finishing roll ring taper sleeve includes a spacing ring, a rolling ring arranged on one side of the spacing ring, a roll ring arranged on the rolling ring, a taper sleeve arranged inside the rolling ring, and a roll shaft arranged inside the rolling ring. A boss is arranged at the top of the outer side wall of the taper sleeve. A conical surface is arranged inside the taper sleeve. An installation groove is arranged on the outer side wall of the taper sleeve.
[0005] Preferably, the conical surface is the inner side wall of the part of the taper sleeve located inside the rolling ring. The shape of the conical surface is a frustum of a cone. The internal dimension of the conical surface is adapted to the dimension of the part of the roll shaft located inside the taper sleeve.
[0006] Preferably, the dimension of one end of the roll shaft is adapted to the dimension of the conical surface, and the other end of the roll shaft penetrates through the conical surface.
[0007] Preferably, the number of the bosses is four, and the bosses are arranged in a circular array.
[0008] Preferably, the material of the taper sleeve is 1Cr13 or 2Cr13.
[0009] Preferably, the outer diameter dimension of the taper sleeve is adapted to the inner diameter dimension of the roll ring.
[0010] Preferably, the shape of the roll ring is a circular ring groove, and the number of the roll rings is multiple.
[0011] Advantageous Effects:
[0012] By designing and inventing a high-speed wire rod finishing roll ring taper sleeve, during the installation process, the taper sleeve is rotated and installed between the roll ring and the roll shaft. The setting of the installation groove enables the roll ring taper sleeve to have a larger press-fit interference amount under the same pressure, thereby avoiding the roll ring from slipping. The cooperation among the roll box roll shaft, the roll ring, and the taper sleeve is reasonable. It can not only make the roll ring generate a large enough static friction force to overcome the axial component of the rolling force, but also ensure that the disassembly and assembly operations can be carried out normally using the roll removal tool. The structure is simple, the disassembly is convenient, the design is reasonable, the labor intensity of the operator is reduced, the operation rate of the rolling mill is improved, and the production cost is reduced. Brief Description of the Drawings
[0013] Figure 1 This is a schematic diagram of the overall structure of the present utility model.
[0014] Figure 2 This is a schematic diagram of the internal structure of the tapered sleeve of the present utility model.
[0015] Figure 3 This is a schematic diagram of the structure of the tapered sleeve of the present utility model.
[0016] Figures 1-3 In [the figure], the corresponding relationship between the component names and the drawing numbers is as follows:
[0017] 1. Spacer ring; 2. Ring rolling; 3. Roller ring; 4. Tapered sleeve; 5. Boss; 6. Roller shaft; 7. Tapered surface; 8. Installation groove. Detailed Implementation Manner
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] As shown in [the figure] Figure 1 to [the figure] Figure 3 shown: It includes a spacer ring 1, a ring rolling 2 provided on one side of the spacer ring 1, a roller ring 3 provided on the ring rolling 2, a tapered sleeve 4 provided inside the ring rolling 2, and a roller shaft 6 provided inside the ring rolling 2. A boss 5 is provided at the top of the outer side wall of the tapered sleeve 4, a tapered surface 7 is provided inside the tapered sleeve 4, and an installation groove 8 is provided on the outer side wall of the tapered sleeve 4.
[0020] Preferably, the tapered surface 7 is the inner side wall of the part of the tapered sleeve 4 located inside the ring rolling 2. The shape of the tapered surface 7 is a frustum of a cone. The internal dimension of the tapered surface 7 is adapted to the dimension of the part of the roller shaft 6 located inside the tapered sleeve 4. The taper of the tapered sleeve 4 is determined according to the taper of the roller shaft 6 of the roll box to ensure that the taper of the tapered sleeve 4 is the same as that of the roller shaft 6 of the roll box. The outer diameter of the tapered sleeve 4 is determined according to the inner diameter of the inner surface of the roller ring 3 to ensure that the outer diameter dimension of the tapered sleeve 4 forms an interference fit with the inner surface of the roller ring 3.
[0021] Preferably, the shape of the installation groove 8 is a threaded groove. The dimension of the installation groove 8 is adapted to the dimension of the inner side wall of the tapered surface 7. During installation, the tapered sleeve 4 is rotated and installed between the roller ring 3 and the roller shaft 6. The provision of the installation groove 8 enables the roller ring 3 and the tapered sleeve 4 to have a greater press-fit interference under the same pressure, thereby preventing the roller ring 3 from slipping.
[0022] Preferably, the number of the bosses 5 is four, and the bosses 5 are arranged in a circular array. The thickness of the bosses 5 is selected to be 10 mm to ensure that the taper sleeve 4 has sufficient strength to meet the requirements of using a disassembly tool to disassemble the combination of the roll ring 3 and the taper sleeve 4 on line.
[0023] Preferably, the material of the taper sleeve 4 is 1Cr13 or 2Cr13, and the material quality ensures the reduction of rust and corrosion of the finish rolling taper sleeve 4 during use.
[0024] Preferably, the outer diameter size of the taper sleeve 4 is adapted to the inner diameter size of the roll ring 3 to ensure that the outer diameter of the taper sleeve 4 and the inner surface of the roll ring 3 form an interference fit.
[0025] Preferably, the shape of the roll ring 3 is a circular groove, and the number of the roll rings 3 is multiple. The inner diameter, thickness of the roll ring 3, and taper of the roll shaft 6 used on site are different. Therefore, the specific sizes and materials of the roll ring 3 and the taper sleeve 4 can be changed according to the actual situation on site.
[0026] Working principle: During the installation process, the taper sleeve 4 is rotated and installed between the roll ring 3 and the roll shaft 6. The setting of the installation groove 8 enables the roll ring 3 and the taper sleeve 4 to have a larger interference amount during press-fitting under the same pressure, thereby avoiding slippage of the roll ring 3. When the equipment is in use, the roll box roll shaft 6, the roll ring 3, and the taper sleeve 4 are reasonably matched. The taper of the taper sleeve 4 is determined according to the taper of the roll box roll shaft 6 to ensure that the taper of the taper sleeve 4 is the same as that of the roll box roll shaft 6. The outer diameter of the taper sleeve 4 is determined according to the inner diameter of the inner surface of the roll ring 3 to ensure that the outer diameter of the taper sleeve 4 and the inner surface of the roll ring 3 form an interference fit, so that the roll ring 3 generates a large enough static friction force to overcome the axial component of the rolling force. The height of the working surface of the taper sleeve 4 is selected to be 20 mm greater than the thickness of the roll ring 3. Four bosses 5 are designed at the upper end of the taper sleeve 4, and the thickness of the bosses 5 is selected to be 10 mm. The material of the taper sleeve 4 is 1Cr13 or 2Cr13, which ensures that the taper sleeve 4 has sufficient strength to meet the requirements of using a disassembly tool to disassemble the combination of the roll ring 3 and the taper sleeve 4 on line, ensuring that the roll disassembly tool can be used for normal disassembly and assembly operations. The structure is simple, the disassembly is convenient, the design is reasonable, the labor intensity of the operator is reduced, the operation rate of the rolling mill is improved, and the production cost is reduced.
Claims
1. A high-speed wire rod finishing roller ring cone sleeve, comprising a distance ring (1), a rolling ring (2) arranged on one side of the distance ring (1), a roller ring (3) arranged on the rolling ring (2), a cone sleeve (4) arranged inside the rolling ring (2) and a roller shaft (6) arranged inside the rolling ring (2), characterized in that: A boss (5) is provided at the top end of the outer wall of the cone sleeve (4), a cone surface (7) is provided inside the cone sleeve (4), and a mounting groove (8) is provided on the outer wall of the cone sleeve (4).
2. The high-speed wire rod finishing roller ring cone sleeve according to claim 1, characterized in that: The conical surface (7) is the inner side wall of the conical sleeve (4) located inside the rolling ring (2), the conical surface (7) is in the shape of a truncated cone, and the internal size of the conical surface (7) is compatible with the size of the roller shaft (6) located inside the conical sleeve (4).
3. The high-speed wire rod finishing roller ring cone sleeve according to claim 1, characterized in that: The shape of the mounting groove (8) is a threaded groove, and the size of the mounting groove (8) is compatible with the size of the inner wall of the conical surface (7).
4. The high-speed wire rod finishing roller ring cone sleeve according to claim 1, characterized in that: The number of the bosses (5) is four, and the bosses (5) are arranged in a circular array.
5. The high-speed wire rod finishing roller ring cone sleeve according to claim 1, characterized in that: The material of the cone sleeve (4) is 1Cr13 or 2Cr13.
6. The high-speed wire rod finishing roller ring cone sleeve according to claim 1, characterized in that: The outer diameter of the cone sleeve (4) is matched to the inner diameter of the roller ring (3).
7. The high-speed wire rod finishing roller ring cone sleeve according to claim 1, characterized in that: The roller ring (3) is in the shape of a circular ring-shaped groove, and there are a plurality of roller rings (3).