Outer slip ring structure of rolling mill roller box
By designing the outer slip ring structure of the integrated roll box, the ring-shaped projection design stabilizes the contact between the outer slip ring and the glasses plate, solving the problem of wear of the double-lip seal ring, extending the service life and improving the lubricating effect of the equipment.
Patent Information
- Application Number
- CN202420410907.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The existing rolling mill roll box outer slip ring structure causes wear of the double-lip seal ring during the rolling process, shortening its service life.
An integrated roll box outer slip ring structure including a roll shaft mounting hole, a first annular projection, a second annular projection and a third annular projection is designed. Through the design of these annular projections, the contact between the outer slip ring and the glasses plate is ensured to be stable and the iron oxide powder is prevented from entering.
It effectively prevents the entry of iron oxide powder, extends the service life of the double-lip sealing ring, and prevents water inflow problems caused by wear of the sealing ring, improving the quality of oil and the lubricating effect of the equipment.
Smart Images
Figure CN222830343U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of installation of high-wire finishing mills in the metallurgical industry, and in particular to an outer slip ring structure of a mill roll box. Background Art
[0002] The function of the outer slip ring is to set the rolling height and cooperate with the sealing ring to prevent water ingress and oil leakage. The outer slip ring on the roll box of the high-speed wire finishing mill is fixed on the roll shaft, rotates with the roll shaft, and has the effect of waterproofing and leak-proofing the roll box through the double lip seal sandwiched in the middle.
[0003] The existing roller box outer slip ring is a split structure, that is, the outer ring of the outer slip ring and the outer slip ring body are two separate parts. In actual use, it is found that since the split outer ring of the outer slip ring and the outer slip ring body are in a transitional fit relationship, when the roller box rotates at high speed, the outer ring of the outer slip ring will bounce upward after contacting the eyeglass plate, resulting in a gap between the outer slip ring and the eyeglass plate. When the iron oxide powder generated during the rolling process enters and reaches a certain amount, it will wear the double lip seal ring, greatly shortening the service life of the double lip seal ring. Summary of the invention
[0004] The purpose of the present application is to provide a rolling mill roll box outer slip ring structure to solve the problem of wear of the double lip seal ring during rolling caused by the roll box outer slip ring structure in the prior art, which greatly shortens the service life of the double lip seal ring.
[0005] To achieve the above-mentioned purpose, the embodiment of the present application provides a rolling mill roll box outer slip ring structure, comprising: a roll shaft mounting hole, a first annular protrusion, a second annular protrusion, and a third annular protrusion, wherein:
[0006] The roller shaft mounting hole is arranged in the middle of the outer slip ring, and includes a first roller shaft mounting hole and a second roller shaft mounting hole which are connected and coaxial;
[0007] The first annular protrusion is provided on the outer periphery of the first roller shaft mounting hole, the first annular protrusion faces the left side of the outer sliding ring, and the inner side surface of the first annular protrusion is flush with the inner side surface of the first roller shaft mounting hole;
[0008] The second annular protrusion is provided on the outer periphery of the second roller shaft mounting hole, the second annular protrusion faces the right side of the outer sliding ring, and the inner side surface of the second annular protrusion is flush with the inner side surface of the second roller shaft mounting hole;
[0009] The third annular protrusion is arranged on the edge of the outer slip ring. The third annular protrusion faces the left side of the outer slip ring, and the outer side surface of the third annular protrusion is flush with the outer side surface of the outer slip ring.
[0010] Optionally, the diameter of the first roller shaft mounting hole is greater than the diameter of the second roller shaft mounting hole;
[0011] The diameter of the first roller shaft mounting hole is 140mm-144mm, and the diameter of the second roller shaft mounting hole is 134mm-138mm.
[0012] Optionally, the left end surface of the first annular protrusion is a positioning surface, and the thickness of the outer slip ring at the first annular protrusion is 17.5 mm-23 mm.
[0013] Optionally, the annular plane between the first annular protrusion and the third annular protrusion is a double-lip contact surface, and the double-lip contact surface is sprayed with chromium oxide.
[0014] Optionally, the height of the second annular protrusion is 2.5 mm-3.5 mm.
[0015] Optionally, the thickness of the outer slip ring at the third annular protrusion is 15.5 mm-22.5 mm.
[0016] Optionally, the thickness of the chromium oxide sprayed on the double-lip contact surface is 0.1 mm-0.15 mm.
[0017] Optionally, the width of the double-lip contact surface is 32mm-60mm.
[0018] Optionally, the width of the first annular protrusion is 12mm-16mm.
[0019] Optionally, the width of the second annular protrusion is 2mm-6mm.
[0020] The embodiments of the present application have the following advantages:
[0021] An embodiment of the present application provides an outer slip ring structure of a rolling mill roll box, comprising: a roll shaft mounting hole, a first annular protrusion, a second annular protrusion, and a third annular protrusion, wherein the roll shaft mounting hole is opened in the middle of the outer slip ring, and comprises a first roll shaft mounting hole and a second roll shaft mounting hole that are connected and coaxial; the first roll shaft mounting hole is provided with the first annular protrusion on the outer periphery, the first annular protrusion faces the left side of the outer slip ring, and the inner side surface of the first annular protrusion is flush with the inner side surface of the first roll shaft mounting hole; the second roll shaft mounting hole is provided with the second annular protrusion on the outer periphery, the second annular protrusion faces the right side of the outer slip ring, and the inner side surface of the second annular protrusion is flush with the inner side surface of the second roll shaft mounting hole; the third annular protrusion is provided on the edge of the outer slip ring, the third annular protrusion faces the left side of the outer slip ring, and the outer side surface of the third annular protrusion is flush with the outer side surface of the outer slip ring.
[0022] Compared with the prior art, the above technical solution provides an integrated rolling mill roll box outer slip ring structure including a roll shaft mounting hole, a first annular protrusion, a second annular protrusion, and a third annular protrusion. When the roll box rotates at high speed, the integrated outer slip ring will no longer bounce upward after contacting the eyeglass plate, thereby preventing the existence of a gap between the outer slip ring and the eyeglass plate, thereby preventing the iron oxide powder generated during the rolling process from entering, and ensuring the service life of the double-lip seal ring. In addition, the third annular protrusion can also prevent the problem of water ingress into the roll box due to wear of the double-lip seal ring, thereby improving the quality of oil and the lubrication effect of the equipment, and preventing equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0024] Figure 1 A cross-sectional view of an outer slip ring structure of a rolling mill roll box provided by at least one embodiment of the present application;
[0025] Figure 2 A cross-sectional view of another rolling mill roll box outer slip ring structure provided for at least one embodiment of the present application. DETAILED DESCRIPTION
[0026] The following is a description of the implementation of the present application by specific specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0027] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense, for example, it can be 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0028] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0029] The present application embodiment provides a rolling mill roll box outer slip ring structure, referring to Figure 1 to Figure 2 ,include:
[0030] Roller shaft mounting hole, first annular protrusion 3, second annular protrusion 4, third annular protrusion 5, wherein:
[0031] The roller shaft mounting hole is arranged in the middle of the outer slip ring, and comprises a first roller shaft mounting hole 1 and a second roller shaft mounting hole 2 which are connected and coaxial.
[0032] Specifically, the roller shaft mounting hole opened in the middle of the outer slip ring has two connected front and rear holes (a first roller shaft mounting hole 1 and a second roller shaft mounting hole 2), and the two holes are coaxial but have different diameters. In some embodiments, the diameter of the first roller shaft mounting hole 1 is greater than the diameter of the second roller shaft mounting hole 2.
[0033] In some embodiments, the diameter of the first roller shaft mounting hole 1 is 140 mm-144 mm, and the diameter of the second roller shaft mounting hole 2 is 134 mm-138 mm.
[0034] Specifically, if installed on a Danieli 200 / 250 roll box, the diameter of the first roll shaft mounting hole 1 may be 142 mm, and the diameter of the second roll shaft mounting hole 2 may be 136 mm.
[0035] The first annular protrusion 3 is provided on the outer periphery of the first roller shaft mounting hole 1 . The first annular protrusion 3 faces the left side of the outer sliding ring, and the inner side surface of the first annular protrusion 3 is flush with the inner side surface of the first roller shaft mounting hole 1 .
[0036] Specifically, the left end surface of the first annular protrusion 3 is the positioning surface 6 .
[0037] In some embodiments, the thickness of the outer slip ring at the first annular protrusion 3 is 17.5 mm-23 mm; the width of the first annular protrusion 3 is 12 mm-16 mm.
[0038] Specifically, if installed on a Danieli 200 roller box, the thickness of the outer slip ring at the first annular protrusion 3 can be 20.5 mm, and if installed on a Danieli 250 roller box, the thickness of the outer slip ring at the first annular protrusion 3 can be 21 mm; and the width of the first annular protrusion 3 can be 14 mm.
[0039] The second annular protrusion 4 is provided on the outer periphery of the second roller shaft mounting hole 2 . The second annular protrusion 4 faces the right side of the outer sliding ring, and the inner side surface of the second annular protrusion 4 is flush with the inner side surface of the second roller shaft mounting hole 2 .
[0040] In some embodiments, the height of the second annular protrusion 4 is 2.5 mm-3.5 mm; the width of the second annular protrusion 4 is 2 mm-6 mm.
[0041] Specifically, if installed on a Danieli 200 / 250 roller box, the height of the second annular protrusion 4 may be 3 mm, and the width of the second annular protrusion 4 may be 4 mm.
[0042] The third annular protrusion 5 is provided on the edge of the outer slip ring. The third annular protrusion 5 faces the left side of the outer slip ring, and the outer side surface of the third annular protrusion 5 is flush with the outer side surface of the outer slip ring.
[0043] In some embodiments, the thickness of the outer slip ring at the third annular protrusion 5 is 15.5 mm-22.5 mm.
[0044] Specifically, if installed on a Danieli 200 roller box, the thickness of the outer slip ring at the third annular protrusion 5 may be 20.5 mm, and if installed on a Danieli 250 roller box, the thickness of the outer slip ring at the third annular protrusion 5 may be 17.5 mm.
[0045] In some embodiments, the annular plane between the first annular protrusion 3 and the third annular protrusion 5 is a double-lip contact surface 7, and the double-lip contact surface 7 is sprayed with chromium oxide.
[0046] In some embodiments, the width of the double-lip contact surface 7 is 32 mm-60 mm; the thickness of the chromium oxide sprayed on the double-lip contact surface 7 is 0.1 mm-0.15 mm.
[0047] Specifically, if installed on a Danieli 200 roller box, the width of the double-lip contact surface 7 may be 34 mm, and if installed on a Danieli 250 roller box, the width of the double-lip contact surface 7 may be 62 mm.
[0048] The outer slip ring structure of the rolling mill roll box provided in the above embodiment is different from the outer slip ring and the outer slip ring outer ring of the existing split structure. The outer slip ring outer ring of the existing split structure is located on the outside of the outer slip ring, and there is a transitional matching relationship between the two. With the increase of the use time, the outer slip ring outer ring will be worn. Since the outer slip ring outer ring and the outer slip ring body are separated, there is no limit device at the outer slip ring outer ring. Therefore, the worn outer slip ring outer ring will swing up and down during use, thereby generating a gap. When the iron oxide powder enters the gap and reaches a certain amount, it will wear the double lip sealing ring, greatly shortening the service life of the double lip sealing ring.
[0049] The outer ring portion of the integrated rolling mill roll box outer slip ring structure provided in the embodiment of the present application is also fixed by a limiting device and will not swing, so that there is no excessive gap between the outer slip ring and the eyeglass plate, ensuring that little or no iron oxide powder enters, thereby ensuring the service life of the double-lip sealing ring.
[0050] In addition, the third annular protrusion 5 can also prevent the problem of water entering the roller box due to wear of the double-lip seal ring, thereby improving the quality of the oil and the lubrication effect of the equipment and preventing damage to the equipment.
[0051] In summary, compared with the prior art, the rolling mill roll box outer slip ring structure provided in the present application combines the existing outer slip ring outer ring with the outer slip ring body structure into one, which is easy to install, can extend the service life and save costs.
[0052] Note that, unless otherwise directly stated, all features disclosed in this specification (including any attached claims, abstracts and drawings) may be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features. Where used, further, preferably, further and more preferably are simple beginnings for elaborating another embodiment based on the aforementioned embodiment, and the content of the further, preferably, further or more preferably followed by the combination with the aforementioned embodiment constitutes a complete construction of another embodiment. Several further, preferably, further or more preferably settings following the same embodiment can be arbitrarily combined to form another embodiment.
[0053] In the implementation of functions and steps, the corresponding functions and steps in various embodiments may also occur in a different order than shown. For example, two consecutive functions and steps may actually be performed or implemented substantially in parallel, and they may sometimes be performed or implemented in the opposite order, depending on the functions involved.
[0054] Although the present application has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made to the present application. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope of protection claimed in the present application.
Claims
1. A rolling mill roll box outer slip ring structure, characterized in that: include: Roller shaft mounting hole, first annular protrusion, second annular protrusion, third annular protrusion, wherein, The roller shaft mounting hole is arranged in the middle of the outer slip ring, and includes a first roller shaft mounting hole and a second roller shaft mounting hole which are connected and coaxial; The first annular protrusion is provided on the outer periphery of the first roller shaft mounting hole, the first annular protrusion faces the left side of the outer sliding ring, and the inner side surface of the first annular protrusion is flush with the inner side surface of the first roller shaft mounting hole; The second annular protrusion is provided on the outer periphery of the second roller shaft mounting hole, the second annular protrusion faces the right side of the outer sliding ring, and the inner side surface of the second annular protrusion is flush with the inner side surface of the second roller shaft mounting hole; The third annular protrusion is arranged on the edge of the outer slip ring. The third annular protrusion faces the left side of the outer slip ring, and the outer side surface of the third annular protrusion is flush with the outer side surface of the outer slip ring.
2. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The diameter of the first roller shaft mounting hole is larger than the diameter of the second roller shaft mounting hole; The diameter of the first roller shaft mounting hole is 140mm-144mm, and the diameter of the second roller shaft mounting hole is 134mm-138mm.
3. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The left end surface of the first annular protrusion is a positioning surface, and the thickness of the outer sliding ring at the first annular protrusion is 17.5mm-23mm.
4. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The annular plane between the first annular protrusion and the third annular protrusion is a double-lip contact surface, and the double-lip contact surface is sprayed with chromium oxide.
5. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The height of the second annular protrusion is 2.5 mm-3.5 mm.
6. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The thickness of the outer sliding ring at the third annular protrusion is 15.5 mm-22.5 mm.
7. The outer slip ring structure of a rolling mill roll box according to claim 4, characterized in that: The thickness of the chromium oxide sprayed on the double-lip contact surface is 0.1mm-0.15mm.
8. The outer slip ring structure of a rolling mill roll box according to claim 4, characterized in that: The width of the double-lip contact surface is 32mm-60mm.
9. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The width of the first annular protrusion is 12 mm-16 mm.
10. The outer slip ring structure of a rolling mill roll box according to claim 1, characterized in that: The width of the second annular protrusion is 2 mm-6 mm.