CN213039815U - Roller distance sealing device - Google Patents
Roller distance sealing device Download PDFInfo
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- CN213039815U CN213039815U CN202021103194.5U CN202021103194U CN213039815U CN 213039815 U CN213039815 U CN 213039815U CN 202021103194 U CN202021103194 U CN 202021103194U CN 213039815 U CN213039815 U CN 213039815U
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- ring
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Abstract
The utility model discloses a roll distance sealing device relates to roll machinery technical field, has solved easy wearing and tearing and lead to the condemned technical problem of spare part between distance ring among the prior art and the snap ring. Including distance ring and sealed clamping ring, wherein: the distance ring comprises a contact part, a ring body part and a sealing part; the sealing compression ring comprises at least two groups of compression plates with arc-shaped structures; the outer diameters of the contact part and the sealing part are larger than that of the ring body part, and at least two groups of pressing plates are connected to the bearing seat to press the sealing part. The utility model discloses an add the contact site on the distance ring, make the area of contact increase between distance ring and the snap ring to improved the wear resistance of distance ring and snap ring, reduced the disability rate of spare part, prolonged the life of distance ring and snap ring, because the external diameter of contact site and sealing all is greater than the external diameter of ring body portion, consequently will seal the clamping ring and set up the clamp plate structure into the sectional type, made things convenient for the installation of sealed clamping ring.
Description
Technical Field
The utility model relates to a roll machinery technical field particularly indicates a roll distance sealing device.
Background
Steel rolling is a process of press working a steel billet by a rotating roll, which is one of main production facilities of steel enterprises. At present, in the technical field of steel hot rolling, snap rings are generally used for determining the positions of a distance ring and a bearing seat on a roller, the distance ring is mainly used for determining the play amount of the bearing seat on the roller and sealing the roller, and the distance ring is fixed on the bearing seat through a sealing pressing ring. In the actual production process, when the roll begins to rotate or bites steel, because there is relative motion between distance ring and the snap ring, very easily cause the problem of distance ring and snap ring wearing and tearing to make distance ring and snap ring inefficacy scrap, increased the consumption of spare parts, reduced the efficiency of production. In addition, there is cooling water between sealed clamping ring and the sealing washer, and the cooling water leads to bearing lubricating oil emulsification and the problem of bearing corrosion damage because long-time unable discharge. In the process of disassembling and assembling the sealing pressure ring, the sealing pressure ring is not installed in place, so that the sealing pressure ring is easy to clamp between the distance ring and the bearing seat, and the sealing pressure ring is deformed and scrapped.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a roller distance sealing device to solve the technical problem that the distance ring and the snap ring are easy to wear and cause the spare parts to be scrapped in the prior art.
The utility model provides a technical scheme that this technical problem adopted is:
the utility model provides a roll distance sealing device, includes distance ring and sealed clamping ring, wherein:
the distance ring comprises a contact part, a ring body part and a sealing part;
the sealing compression ring comprises at least two groups of compression plates with arc-shaped structures;
the outer diameters of the contact part and the sealing part are larger than that of the ring body part, and at least two groups of pressing plates are connected to the bearing seat to press the sealing part.
On the basis of the technical scheme, the roller distance sealing device can be further improved as follows.
Optionally, the pressing plate is provided with a plurality of connecting holes, the pressing plate penetrates through the connecting holes through screws and then is connected with the bearing seat, and the outer diameter of the contact portion is not greater than the distance between the connecting holes and the ring body.
Optionally, a sealing ring is arranged between the sealing portion and the bearing seat, and a gap for discharging cooling water is formed between at least two groups of pressure plates.
Optionally, the width of the gap is 2-5 mm.
Optionally, a key groove used for being connected with the snap ring key is formed in the contact portion, and the length of the contact portion in the axial direction of the distance ring is larger than the depth of the key groove in the axial direction of the distance ring.
Optionally, an inclined transition surface is arranged between the contact part and the ring body part.
Optionally, a sealing groove for mounting the sealing ring is arranged in the distance ring.
Optionally, the sealing portion and the ring body portion are in inclined surface transition.
Optionally, chamfers are arranged at two ports of the distance ring.
Optionally, the distance ring is made of 42CrMo subjected to surface nitriding, and the sealing pressure ring is made of Q325 steel.
Compared with the prior art, the utility model provides a roll distance sealing device has beneficial effect is:
the utility model discloses an add the contact site on the distance ring, make the area of contact increase between distance ring and the snap ring to improved the wear resistance of distance ring and snap ring, reduced the disability rate of spare part, prolonged the life of distance ring and snap ring, because the external diameter of contact site and sealing all is greater than the external diameter of ring body portion, consequently will seal the clamping ring and set up the clamp plate structure into the sectional type, made things convenient for the installation of sealed clamping ring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of the roll distance seal of the present invention;
FIG. 2 is a schematic view of the sealing collar of FIG. 1;
fig. 3 is a schematic view of the overall structure of the roll distance sealing device of the present invention.
In the figure:
1-distance ring; 11-a contact portion; 12-a ring body part; 13-a sealing portion; 14-a seal groove; 15-key groove; 16-a sloping transition surface; 2-a snap ring; 3, sealing the pressure ring; 31-a pressure plate; 32-connecting hole; 4, sealing rings; and 5, bearing seats.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are merely exemplary of the invention and are not intended to be exhaustive. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b):
in the prior art, the outer diameter of a common distance ring 1 is the same as that of a snap ring 2, and the body of the distance ring 1 is straight, so that the contact area between the distance ring 1 and the snap ring 2 is small, and when a roller starts to rotate or bites steel, the distance ring 1 and the snap ring 2 are easily worn due to relative motion between the distance ring 1 and the snap ring 2. The sealing press ring 3 is generally a full-circle ring structure, cooling water used for cooling the rolled roller easily permeates between the sealing press ring 3 and the sealing ring 4, and if the cooling water cannot be discharged in time, bearing lubricating oil is easily emulsified, and a bearing is also easily rusted and damaged. In addition, when the sealing pressure ring 3 with a full-circle ring structure is installed in the distance ring 1, the situation that the sealing pressure ring 3 is inclined to the distance ring 1 in the installation process may also occur, so that the sealing pressure ring 3 is clamped between the distance ring 1 and the bearing seat 5.
The utility model provides a roll distance sealing device, as shown in figure 1 to figure 3, including distance ring 1 and sealed clamping ring 3. The material of the distance ring 1 is 42CrMo subjected to surface nitriding, the 42CrMo surface nitriding can improve the wear resistance and the corrosion resistance of the distance ring 1, and the material of the sealing pressure ring 3 is Q325 steel. Of course, the material of the distance ring 1 and the sealing press ring 3 may be made of other steel materials with high wear resistance, such as alloy steel.
As shown in fig. 1 and 3, the distance ring 1 comprises a contact portion 11, a body portion 12 and a sealing portion 13, and the outer diameters of the contact portion 11 and the sealing portion 13 are both larger than the outer diameter of the body portion 12. The outer diameters of the contact portion 11 and the sealing portion 13 may be equal or different. An inclined transition surface 16 is arranged between the contact part 11 and the ring body part 12, and the inclination angle of the inclined transition surface 16 is 45-80 degrees. The inclined transition surface 16 prevents damage between the contact portion 11 and the ring body portion 12 due to stress concentration, and improves the strength of the distance ring 1. The contact part 11 is provided with a key groove 15, and the distance ring 1 and the snap ring 2 are connected through the matching of a key and the key groove 15. The length of the contact portion 11 in the axial direction of the distance ring 1 is larger than the depth of the key groove 15 in the axial direction of the distance ring 1, i.e. the key groove 15 is provided on the contact portion 11. The length of the ring body part 12 meets the requirements of roller positioning. The sealing part 13 and the ring body part 12 are in inclined transition, so that the sealing part 13 and the ring body part 12 can be prevented from being damaged due to stress concentration.
As shown in fig. 1 and 3, a seal groove 14 is provided in the distance ring 1 for mounting a seal ring to hermetically connect the distance ring 1 and the roll, and two seal grooves 14 are provided at positions 35mm inward of both ports of the distance ring 1. Chamfers are arranged at two ports of the distance ring 1, the axial distance of the chamfers is 10mm, and the single-side angle of the chamfers is 15 degrees. Of course, the position of the sealing groove 14 and the chamfer structure can be adjusted adaptively according to the size of the distance ring 1.
As shown in fig. 1 to 3, the sealing press ring 3 includes two sets of pressing plates 31 having circular arc structures, the two sets of pressing plates 31 are respectively provided with a plurality of connecting holes 32, and the pressing plates 31 are screwed with the bearing seats 5 after penetrating through the connecting holes 32 by screws. Of course, the connection mode of the pressure plate 31 and the bearing seat 5 can also be interference connection or clamping connection. After the snap ring 2 is connected and positioned with the distance ring 1, the sealing part 13 is pressed by the connection of the pressure plate 31 and the bearing seat 5, and the sealing ring 4 is arranged between the sealing part 13 and the bearing seat 5. The outer diameter of the contact portion 11 is not greater than the distance between the connection hole 32 and the ring body portion 12 so that the screw in the connection hole 32 can be tightened with a tool. And a gap for discharging cooling water is formed between the two groups of pressing plates 31, and the width of the gap is 2-5 mm. Of course, the sealing press ring 3 may be provided with three, four or more sets of the pressing plates 31.
The utility model discloses an add contact site 11 on distance ring 1, for prior art, increased the area of contact between distance ring 1 and the snap ring 2 to improved the wear resistance of distance ring and snap ring, made distance ring 1 more wear-resisting with snap ring 2, reduced the disability rate of spare parts, prolonged the life of distance ring 1 and snap ring 2. However, since the outer diameters of the contact portion 11 and the sealing portion 13 are both larger than the outer diameter of the ring body portion 12, the sealing pressure ring 3 of a full ring structure cannot be directly fitted into the distance ring 1, and therefore, the sealing pressure ring 3 is configured as a segmented pressure plate 31. On one hand, the gap between the pressure plates 31 can discharge cooling water, so that emulsification of bearing lubricating oil and corrosion damage of the bearing are prevented; on the other hand, the sectional type pressing plate 31 can be further respectively installed between the distance ring 1 and the bearing seat 5, the phenomenon that the sealing pressing ring 3 is clamped between the distance ring 1 and the bearing seat 5 to cause deformation scrapping due to the fact that the sealing pressing ring 3 is of a full-circle ring structure and is obliquely installed relative to the distance ring 1 is avoided, and the assembly, disassembly and replacement efficiency of the roller distance sealing device is improved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a roll distance sealing device which characterized in that, includes distance ring (1) and sealed clamping ring (3), wherein:
the distance ring (1) comprises a contact part (11), a ring body part (12) and a sealing part (13);
the sealing press ring (3) comprises at least two groups of press plates (31) with arc-shaped structures;
the outer diameters of the contact part (11) and the sealing part (13) are larger than that of the ring body part (12), and at least two groups of pressure plates (31) are connected to the bearing seat (5) to press the sealing part (13).
2. Roll distance sealing device according to claim 1, characterised in that the pressure plate (31) is provided with a number of attachment holes (32), that the pressure plate (31) is connected to the chock (5) after being screwed through the attachment holes (32), and that the outer diameter of the contact part (11) is not larger than the distance between the attachment holes (32) and the ring body part (12).
3. Roll distance sealing device according to claim 2, characterized in that a sealing ring (4) is arranged between the sealing part (13) and the chock (5), and that at least two sets of pressure plates (31) have a gap for draining cooling water between them.
4. Distance seal arrangement according to claim 3, characterized in that the width of the gap is 2-5 mm.
5. Roll distance sealing arrangement according to claim 1, characterized in that the contact part (11) is provided with a key groove (15) for key connection with the snap ring (2), and that the length of the contact part (11) in the axial direction of the distance ring (1) is larger than the depth of the key groove (15) in the axial direction of the distance ring (1).
6. Roll distance sealing device according to claim 1, characterized in that an inclined transition surface (16) is provided between the contact part (11) and the ring body (12).
7. Roll distance sealing arrangement according to claim 1, characterized in that a sealing groove (14) for mounting a sealing ring is provided in the distance ring (1).
8. Roll distance sealing arrangement according to claim 1, characterized in that between the sealing part (13) and the ring body part (12) there is a bevelled transition.
9. Roll distance sealing device according to claim 1, characterized in that both ends of the distance ring (1) are provided with chamfers.
10. Roll distance sealing arrangement according to any of claims 1-9, characterized in that the distance ring (1) is of 42CrMo surface nitrided and the pressure sealing ring (3) is of Q325 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021103194.5U CN213039815U (en) | 2020-06-16 | 2020-06-16 | Roller distance sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021103194.5U CN213039815U (en) | 2020-06-16 | 2020-06-16 | Roller distance sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213039815U true CN213039815U (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021103194.5U Active CN213039815U (en) | 2020-06-16 | 2020-06-16 | Roller distance sealing device |
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| CN (1) | CN213039815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790950A (en) * | 2021-09-17 | 2021-12-14 | 长春市镨策试验仪器有限责任公司 | Pressure-bearing device for simulating high-energy-storage rock mass excavation unloading test and sealing method |
-
2020
- 2020-06-16 CN CN202021103194.5U patent/CN213039815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790950A (en) * | 2021-09-17 | 2021-12-14 | 长春市镨策试验仪器有限责任公司 | Pressure-bearing device for simulating high-energy-storage rock mass excavation unloading test and sealing method |
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