A mill seal cover
By designing an integrated rolling mill sealing cover, combined with replaceable wear parts and specific materials, the problem of poor sealing performance of the sealing cover in harsh environments was solved, thus achieving stable operation of the rolling mill and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI TONGCAI IND & TRADE CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-21
AI Technical Summary
The sealing cover of the rolling mill is easily corroded by dirt in harsh environments, resulting in poor sealing performance, affecting the stability and production efficiency of the rolling mill, and frequent damage leads to increased spare parts costs and labor intensity.
A mill sealing cover is designed, comprising a main sealing body and replaceable wear parts. It adopts an integrated upper sealing plate, side sealing plate and bottom support plate, combined with outer edge shoulder, lower locking groove and extrusion gasket to enhance the sealing effect, and uses chrome plating process and copper-aluminum alloy material to improve durability.
It effectively reduces the intrusion of oil, water, dust and other debris into the rolling mill, improves the durability and stability of the sealing cover, reduces the failure rate, increases production efficiency and reduces maintenance costs.
Smart Images
Figure CN224525608U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of iron and steel metallurgy technology, specifically a rolling mill sealing cover. Background Technology
[0002] The tension column and copper nut components of the rolling mill are more susceptible to corrosion from mud and scale in harsh working environments. This fouling not only affects the normal operation of the rolling mill but can also trigger various malfunctions, leading to the seizing of the tension column and support system. This severely impacts the stability of the rolling mill, causing significant inconvenience and losses to production. Furthermore, this design means that the sealing cover is easily damaged and rendered unusable upon removal during mill repairs, leading to frequent damage and increased spare parts costs and labor intensity. To address these issues, improvements are being made to the rolling mill's pressure sleeve sealing cover. The short-stress rolling mill's main sealing cover is also prone to leaks and severe environmental contamination, such as oil, water, and dust, frequently causing the mill's tie rods to seize, resulting in premature shutdowns and production disruptions.
[0003] The original design of the mill sealing cover involved fixing it to the pressure sleeve with bolts during installation to provide a secure seal. However, during use, it was found that this design was not very effective at securing the seal, as the mill is easily affected by the external environment during operation. Oil, water, dust, and other debris can penetrate the mill through gaps, damaging critical components. Utility Model Content
[0004] The purpose of this application is to provide a rolling mill sealing cover in order to solve the problems mentioned above.
[0005] The technical solution adopted in this application is as follows: a rolling mill sealing cover, including a main sealing body and replaceable wear parts, wherein an upper sealing plate is provided on the outer surface of the front end of the main sealing body, side sealing plates are provided on the outer surfaces of both sides of the main sealing body, and a bottom support plate is provided on the outer surface of the rear end of the main sealing body.
[0006] By adopting the above technical solution, the mill sealing cover consists of a main sealing body and replaceable wear parts. The main sealing body is integrally molded, and the main body is composed of an upper sealing plate, a side sealing plate, and a bottom support plate. The corresponding outer edge pad and lower locking groove are better secured to the outside of the mill, which makes it easier to install screws after fixing, thus reducing the gap and enhancing the sealing effect. This minimizes the intrusion of oil, water, dust and other debris into the mill through the gaps.
[0007] In a preferred embodiment, upper fixing holes are provided on the outer surfaces of both sides of the upper sealing sheet, and outer edge shoulders are provided on the outer surfaces of the corresponding side sealing sheets of the upper sealing sheet.
[0008] By adopting the above technical solution, the upper sealing sheet is integrated and attached to the upper fixing holes on both sides after tightening. The outer edge shoulder makes it easy for the sealing cover to be fixed on the outside of the rolling mill, and it is also easy to install.
[0009] In a preferred embodiment, the outer surfaces of the side sealing sheet are provided with side fixing holes, and the outer surfaces of the bottom support sheet are provided with bottom fixing holes.
[0010] By adopting the above technical solution, the side fixing holes on both sides of the side sealing sheet correspond to the upper fixing holes at the upper end, while the gap between the corresponding bottom fixing holes at the lower end is relatively small. This makes it easier to have more stress points at the lower end after tightening. As the sealing cover is subjected to gravity, the lower end experiences greater force, ensuring durability.
[0011] In a preferred embodiment, a lower locking groove is provided on the outer surface of the main sealing body corresponding to the bottom support plate, and a compression gasket is welded to the outer surface of the main sealing body corresponding to the lower locking groove.
[0012] By adopting the above technical solution, the outer edge lower locking groove is increased, and a compression pad is attached to the outside to increase the stability of the fastening force.
[0013] In a preferred embodiment, a reference groove is provided on the outer surface of the main sealing body.
[0014] By adopting the above technical solution, the reference groove ensures that the protruding ring of the replaceable wear part can be properly inserted into the position, thereby forming a whole with the main sealing body and the replaceable wear part.
[0015] In a preferred embodiment, the replaceable wear part has a raised ring on the outer surface of the corresponding reference groove.
[0016] By adopting the above technical solution, the protruding ring is inserted into the reference groove, which facilitates the integration of the main seal body and the replaceable wear parts. On the other hand, when oil, water, dust and other impurities enter the mill through the gaps, the ductile material of the replaceable wear parts squeezes the impurities to the reference groove. After disassembly, the deformed replaceable wear parts are replaced, while the relatively hard main seal body continues to be used to ensure durability.
[0017] In a preferred embodiment, the replaceable wear part is provided with a side protection ring on the inner ring surface of the main seal body.
[0018] By adopting the above technical solution, the same effect as the raised ring is achieved. The side protection ring facilitates the replacement of worn parts to buffer and protect the main sealing body when the inner ring is squeezed during sealing.
[0019] In a preferred embodiment, the outer surface of the main sealing body is chrome-plated, and the replaceable wear parts are made of copper-aluminum alloy.
[0020] By adopting the above technical solution, chrome plating further ensures the physical hardness of the main sealing body. The copper-aluminum alloy has high toughness and high buffering capacity. When impurities appear during the sealing operation, they will squeeze the replaceable wear parts, thereby ensuring the durability of the main sealing body.
[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: 1. The mill sealing cover consists of a main sealing body and replaceable wear parts. The main sealing body is integrally molded, which greatly increases the physical hardness. The main body is composed of an upper sealing plate, a side sealing plate, and a bottom support plate. The corresponding outer edge pads and lower locking grooves are better secured to the outside of the mill, which makes it easier to install screws after fixing and reduces the gap, thus enhancing the sealing effect and minimizing the intrusion of oil, water, dust and other debris into the mill through the gaps. Second, this application adopts a combination of main sealing body and replaceable wear parts, which is easy to install. When impurities are encountered during sealing, the replaceable wear parts are squeezed to obtain a relatively buffer space, protecting the main sealing body from damage. The main sealing body is mainly subjected to ring-shaped force, which avoids uneven force in multiple places during disassembly and prevents brittleness, thus increasing durability. Attached Figure Description
[0022] Figure 1 This is a front view of the overall shape of the device in this application; Figure 2 This is a schematic diagram of the rear view of the overall shape of the equipment in this application; Figure 3 This is a schematic diagram showing the connection between the main sealing body and the replaceable wear parts in this application; Figure 4 This is a bottom view showing the connection between the main seal and the replaceable wear parts in this application.
[0023] The markings in the diagram are: 1. Main sealing body; 2. Upper sealing plate; 3. Side sealing plate; 4. Bottom support plate; 5. Upper fixing hole; 6. Side fixing hole; 7. Bottom fixing hole; 8. Reference groove; 9. Replaceable wear parts; 10. Raised ring; 11. Side protection ring; 12. Outer edge shoulder; 13. Lower locking groove; 14. Extrusion gasket. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] Example: Reference Figure 1-4 A rolling mill sealing cover includes a main sealing body 1 and a replaceable wear part 9. An upper sealing plate 2 is provided on the outer surface of the front end of the main sealing body 1, side sealing plates 3 are provided on the outer surfaces of both sides of the main sealing body 1, and a bottom support plate 4 is provided on the outer surface of the rear end of the main sealing body 1.
[0026] The mill sealing cover consists of a main sealing body 1 and replaceable wear parts 9. The main sealing body 1 is integrally molded, and the main body is composed of an upper sealing plate 2, a side sealing plate 3, and a bottom support plate 4. The corresponding outer edge pad 12 and lower locking groove 13 are better locked on the outside of the mill, which makes it easier to install screws after fixing, reduce the gap, enhance the sealing effect, and minimize the intrusion of oil, water, dust and other debris into the mill through the gap.
[0027] Reference Figure 1-4 The upper sealing sheet 2 has upper fixing holes 5 on both outer surfaces, and the upper sealing sheet 2 has outer edge shoulder 12 on the outer surface of the corresponding side sealing sheet 3.
[0028] The upper sealing sheet 2 has upper fixing holes 5 on both sides. After tightening, the upper sealing sheet 2 is attached as a whole. The outer edge shoulder 12 makes it easy for the sealing cover to be fixed on the outside of the rolling mill, and also facilitates installation.
[0029] Reference Figure 1-4 The side sealing sheet 3 has side fixing holes 6 on both outer surfaces, and the bottom support sheet 4 has bottom fixing holes 7 on both outer surfaces.
[0030] The side fixing holes 6 are located on both sides of the side sealing plate 3, corresponding to the upper fixing holes 5 at the upper end. The gap between the corresponding bottom fixing holes 7 is relatively small, which makes it easier to have more stress points at the bottom after tightening. The sealing cover is subjected to gravity, and the force at the bottom is greater, ensuring durability.
[0031] Reference Figure 1-4 A lower locking groove 13 is provided on the outer surface between the main sealing body 1 and the bottom support plate 4, and a compression gasket 14 is welded on the outer surface of the main sealing body 1 corresponding to the lower locking groove 13.
[0032] The outer edge lower locking groove 13 is increased, and the compression pad 14 is attached to the outside to increase the stability of the fastening force.
[0033] Reference Figure 1-4 The outer surface of the main sealing body 1 is provided with a reference groove 8.
[0034] The reference groove 8 ensures that the protruding ring 10 of the replaceable wear part 9 can be properly engaged in the position, thereby forming a whole with the main seal body 1 and the replaceable wear part 9.
[0035] Reference Figure 1-4 The replaceable wear part 9 has a raised ring 10 on the outer surface of the corresponding reference groove 8.
[0036] The raised ring 10 is inserted into the reference groove 8, which facilitates the integration of the main seal body 1 and the replaceable wear part 9. On the other hand, when oil, water, dust and other impurities enter the mill through the gaps, the ductile material of the replaceable wear part 9 will squeeze the impurities to the reference groove 8. After disassembly, the deformed replaceable wear part 9 can be replaced, while the relatively hard main seal body 1 can continue to be used to ensure durability.
[0037] Reference Figure 1-4 The replaceable wear part 9 is provided with a side protection ring 11 on the inner ring surface of the main sealing body 1.
[0038] Similar to the effect of the raised ring 10, the side protection ring 11 allows for the replacement of the worn part 9 to buffer and protect the main sealing body 1 when the inner ring is compressed during sealing.
[0039] Reference Figure 1-4 The outer surface of the main sealing body 1 is chrome-plated, and the replaceable wear parts 9 are made of copper-aluminum alloy.
[0040] The chrome plating further ensures the physical hardness of the main sealing body 1. The copper-aluminum alloy has high toughness and high cushioning. When impurities appear during the sealing operation, they will squeeze the replaceable wear parts 9, thereby ensuring the durability of the main sealing body 1.
[0041] The implementation principle of an embodiment of a rolling mill sealing cover in this application is as follows: The mill sealing cover consists of a main sealing body 1 and replaceable wear parts 9. The main sealing body 1 is integrally molded, and the main body is composed of an upper sealing plate 2, side sealing plates 3, and a bottom support plate 4. The corresponding outer edge pads 12 and lower locking grooves 13 are better secured to the outside of the mill, making it easier to install screws after fixing and reducing the gap, thus enhancing the sealing effect and minimizing the intrusion of oil, water, dust, and other debris into the mill through gaps. The upper sealing plate 2 has upper fixing holes 5 on both sides, which allow the upper sealing plate 2 to be integrally attached after tightening. Similarly, the side sealing plates 3 on both sides are secured by the side fixing holes 6, ensuring lateral overall attachment. The sealing cover can better fix the seal in the pressure sleeve, achieving a better sealing effect and reducing the probability of debris entering the mill. Correspondingly, the gap of the bottom fixing holes 7 of the bottom support plate 4 is reduced. Under the action of gravity, the pressure received by the bottom support plate 4 is increased compared to the upper one, and the outer edge... The lower locking groove 13 is enhanced with an additional compression pad 14 on the outer side to increase the stability of the fastening force. The reference groove 8 ensures that the raised ring 10 of the replaceable wear part 9 can be securely engaged in this position. The raised ring 10 engaging in the reference groove 8 facilitates the integration of the main seal body 1 and the replaceable wear part 9. On the other hand, when oil, water, dust, and other impurities enter the mill through gaps, the ductile material of the replaceable wear part 9 squeezes the impurities to the reference groove 8. After disassembly, the deformed replaceable wear part 9 is replaced, while the relatively hard main seal body 1 continues to be used, ensuring durability. The raised ring 10 has a similar effect. The side protection ring 11 provides cushioning protection for the main seal body 1 when the inner ring is compressed during sealing. Even if impurities cause blockage or wear after disassembly, the replaceable wear part 9, which requires less material, is replaced, reducing costs and significantly improving the stability and production efficiency of the mill. The mill operates more smoothly and reliably, with a significantly reduced failure rate.
[0042] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A rolling mill sealing cover, comprising a main sealing body and replaceable wear parts, characterized in that: The outer surface of the front end of the main sealing body is provided with an upper sealing plate, the outer surfaces of both sides of the main sealing body are provided with side sealing plates, and the outer surface of the rear end of the main sealing body is provided with a bottom support plate.
2. A rolling mill sealing cover as described in claim 1, characterized in that: The upper sealing sheet has upper fixing holes on both outer surfaces, and the upper sealing sheet has outer edge shoulders on the corresponding outer surface of the sealing sheet.
3. A rolling mill sealing cover as described in claim 1, characterized in that: The side sealing sheet has side fixing holes on both outer surfaces, and the bottom support sheet has bottom fixing holes on both outer surfaces.
4. A rolling mill sealing cover as described in claim 1, characterized in that: A lower locking groove is provided on the outer surface between the main sealing body and the bottom support plate, and a compression gasket is welded to the outer surface of the main sealing body corresponding to the lower locking groove.
5. A rolling mill sealing cover as described in claim 1, characterized in that: A reference groove is provided on the outer surface of the main sealing body.
6. A rolling mill sealing cover as described in claim 1, characterized in that: The replaceable wear part has a raised ring on the outer surface of the corresponding reference groove.
7. A rolling mill sealing cover as described in claim 1, characterized in that: The replaceable wear part is provided with a side protection ring on the inner ring surface of the main seal body.
8. A rolling mill sealing cover as described in claim 1, characterized in that: The outer surface of the main seal is chrome-plated, and the replaceable wear parts are made of copper-aluminum alloy.