CN218670633U - Multi-lip sealing ring for high-speed wire rod rolling mill - Google Patents
Multi-lip sealing ring for high-speed wire rod rolling mill Download PDFInfo
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- CN218670633U CN218670633U CN202223183024.4U CN202223183024U CN218670633U CN 218670633 U CN218670633 U CN 218670633U CN 202223183024 U CN202223183024 U CN 202223183024U CN 218670633 U CN218670633 U CN 218670633U
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- speed wire
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Abstract
The utility model discloses a multi-lip sealing ring for a high-speed wire rod rolling mill, which comprises a supporting body and is cylindrical; the sealing lips are respectively arranged at two ends of the supporting body and comprise a plurality of sealing lips which are sequentially and coaxially arranged along the radial direction of the supporting body, and each sealing lip is fixedly arranged at the end part of the supporting body; the utility model discloses a kind of high-speed wire rod is multi-lip sealing washer for rolling mill can prevent that the lubricating oil in the rolling mill box from leaking, prevents infiltration rolling mill boxes such as external cooling water and iron scale again, has longer life and better sealed effect.
Description
Technical Field
The utility model relates to the technical field of metallurgical machinery, in particular to multi-lip sealing ring for high-speed wire rod rolling mill.
Background
At present, a double-lip seal ring is widely used on a metallurgical bar and wire high-speed rolling mill to seal the oil film bearing 1 part of a box body. The double-lip sealing ring is suitable for double sealing of lubricating oil and cooling water under the condition of high-speed rotation, so that the lubricating oil in the box body is prevented from leaking, and external cooling water, iron oxide scales and the like are prevented from permeating into the box body. As shown in fig. 1 and 2, the double-lip seal 3 includes an inner seal lip 8, a support body 9, and an outer seal lip 10, and the support body 9 has a metal skeleton 11. When the oil slinger is installed, the supporting body 9 is in interference fit with a retainer 4 fixedly arranged on a rolling mill, the inner sealing lip 8 is in contact with the side face of the inner oil slinger 2, and the outer sealing lip 10 is in contact with the side face of the outer oil slinger 5. When the double-lip oil slinger is used, the double-lip sealing ring 3 and the retainer 4 are kept static, the inner oil slinger 2 and the outer oil slinger 5 rotate along with the roll shaft 7, and relative sliding friction is generated between the double-lip sealing ring 3 and the inner oil slinger 2 and the outer oil slinger 5.
In order to achieve the sealing effect, the inner sealing lip 9 forms enough pressure on the inner flinger 2 and the outer sealing lip 10 forms enough pressure on the outer flinger 5, and when the inner flinger 5 and the outer flinger 5 rotate at high speed of about 12000r/min, on one hand, the lip of the double-lip sealing ring 3 is abraded quickly due to friction force and has short service life; on the other hand, because the inner sealing lip and the outer sealing lip are both surface seals formed by linear sealing, the inner sealing lip and the outer sealing lip generate float deformation under the action of elastic pressure, friction force and scouring of cooling water or lubricating oil, the integrity of a sealing surface cannot be ensured, and the sealing failure is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome foretell not enough, the utility model provides a many lips sealing washer is used to high-speed wire rod rolling mill has stronger sealed effect and longer life.
The utility model provides a multi-lip sealing ring for a high-speed wire rod rolling mill, a supporting body is cylindrical; and two sealing lip portions which are respectively arranged at two ends of the supporting body, wherein each sealing lip portion comprises a plurality of sealing lips, the plurality of sealing lips are sequentially and coaxially arranged along the radial direction of the supporting body, and each sealing lip is fixedly arranged at the end part of the supporting body.
Furthermore, the end faces of the sealing lips, which are far away from one end of the supporting body, are flush.
Further, one end of the sealing lip, which is far away from the supporting body, inclines towards the direction far away from the central axis of the sealing lip.
Further, the sealing lips are arranged at intervals, so that a cavity is formed between every two adjacent sealing lips.
Further, the number of the seal lips in each seal lip portion is two, the outer seal lip is a main seal lip, and the inner seal lip is an auxiliary seal lip.
Furthermore, an installation groove used for being clamped into a retainer of the rolling mill is formed in the outer side face of the sealing ring main body, and the installation groove is in interference fit with the retainer.
Further, the sealing lip is a rubber piece.
Furthermore, an annular clamping groove is formed in the inner wall of the sealing ring main body, the multi-lip sealing ring for the high-speed wire rolling mill further comprises an annular supporting framework, and the supporting framework is fixedly installed in the clamping groove.
Further, the supporting framework is a metal framework.
Further, the sealing lip and the support body are integrally formed.
The utility model has the advantages that: the utility model discloses a multi-lip seal ring for high-speed wire rod rolling mill alleviates the contact pressure of each seal lip to the inside and outside flinger, thereby can alleviate the wearing and tearing volume of each seal lip and inside and outside flinger, prolongs the life of inside and outside flinger and multi-lip seal ring; the influence of temperature rise due to friction heating on the oil film bearing is reduced because the contact stress is reduced; the outer main sealing lip and the outer auxiliary sealing lip are respectively contacted with the outer oil thrower ring, a cavity is formed between the outer main sealing lip and the outer auxiliary sealing lip, and the sealing effect on cooling water, iron oxide scales and other impurities is improved through the throttling and capacity expansion effects; the inner main sealing lip and the inner auxiliary sealing lip are respectively contacted with the inner flinger, a cavity is formed among the inner main sealing lip and the inner auxiliary sealing lip, and the sealing effect on lubricating oil is improved through throttling and expansion effects; the outer main sealing lip and the outer auxiliary sealing lip can be mutually standby, and the inner main sealing lip and the inner auxiliary sealing lip can be mutually standby, so that the sealing reliability is improved.
Drawings
FIG. 1 is an enlarged fragmentary view of a prior art double-lip seal assembly;
FIG. 2 is a schematic view of a prior art double lip seal;
fig. 3 is a schematic structural view of a multi-lip seal ring for a high-speed wire rolling mill according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a multi-lip seal assembly for a high-speed wire rolling mill according to an embodiment of the present invention;
fig. 5 is a partially enlarged view of a portion a in fig. 4.
In the figure, 1, an oil film bearing, 2, an inner flinger; 3. the double-lip sealing ring comprises a double-lip sealing ring 4, a retainer 5, an outer oil slinger 6, a multi-lip sealing ring 7, a roll shaft 8, an inner sealing lip 9, a support body 10, an outer sealing lip 11, a metal framework 12, an inner main sealing lip 13, an inner auxiliary sealing lip 14, an outer main sealing lip 15, an outer auxiliary sealing lip 16 and a cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Fig. 3 is a schematic structural view of a multi-lip seal ring for a high-speed wire rolling mill according to an embodiment of the present invention; fig. 4 is a schematic structural view of a multi-lip seal assembly for a high-speed wire rolling mill according to an embodiment of the present invention; fig. 5 is a partially enlarged view of a portion a in fig. 4. As shown in fig. 3 to 4, the multi-lip seal ring 6 for a high-speed wire rolling mill in the present embodiment includes a support body 9, a support frame, and two seal lip portions.
The support body 9 is cylindrical and has a central through hole therein. An annular mounting hole is formed on the outer wall of the support body 9. The mounting hole is in interference fit with a retainer 4 on the rolling mill. An annular slot is formed on the inner wall of the support body 9. The support 9 is a rubber sleeve.
The supporting framework is a metal framework 11 and is embedded in the clamping groove, the upper end and the lower end of the supporting framework are abutted to the upper inner wall and the lower inner wall of the clamping groove, and the outer side of the supporting framework is abutted to the inner side wall of the clamping groove.
Two sealing lips are respectively provided at both ends of the support body 9, one of which is an outer sealing lip for pressing against the inner end wall of the outer slinger 5, and the other of which is an inner sealing lip for pressing against the inner end wall of the inner slinger 2.
The outer sealing lip comprises two sealing lips. The two sealing lips are arranged spaced apart in the radial direction of the support body 9, so that a cavity 16 is formed between the two sealing lips. Wherein, one sealing lip far away from the central axis of the supporting body 9 is an outer main sealing lip, and the other sealing lip is an outer auxiliary sealing lip 15. One end of the outer main seal lip and one end of the outer auxiliary seal lip 15 are respectively fixedly installed on the supporting body 9, and the other ends of the outer main seal lip and the outer auxiliary seal lip incline towards the direction far away from the central axis of the supporting body. Meanwhile, the end faces of the other ends of the outer main seal lip 14 and the outer auxiliary seal lip 15 are flush, so that the outer main seal lip 14 and the outer auxiliary seal lip 15 can be simultaneously abutted against the outer end wall of the outer slinger 5. The outer main sealing lip 14 and the outer auxiliary sealing lip 15 are both rubber pieces and are integrally connected with the supporting body 9.
The inner sealing lip comprises two sealing lips. The two sealing lips are arranged spaced apart in the radial direction of the support body 9, so that a cavity 16 is formed between the two sealing lips. Wherein, one sealing lip far away from the central axis of the supporting body 9 is an inner main sealing lip, and the other sealing lip is an inner auxiliary sealing lip 1513 of the auxiliary sealing lip 15. One end of the auxiliary sealing lip 1513 in the inner main sealing lip and the auxiliary sealing lip 15 is respectively and fixedly arranged on the supporting body 9, and the other end is respectively inclined towards the direction far away from the central axis. Meanwhile, the end faces of the other ends of the inner main seal lip 12 and the inner auxiliary seal lip 1513 of the auxiliary seal lip 15 are flush, so that the inner main seal lip 12 and the inner auxiliary seal lip 1513 of the auxiliary seal lip 15 can be abutted against the inner end wall of the inner slinger 2 at the same time. The inner main seal lip 12 and the inner auxiliary seal lip 1513 of the auxiliary seal lip 15 are both rubber pieces and are integrally connected with the support body 9.
The sealing principle of the multi-lip sealing ring 6 for the high-speed wire rod rolling mill in the embodiment is as follows: the plurality of seal lips are provided, and each seal lip is simultaneously contacted with the slinger, that is, a plurality of seal points are provided on the slinger and the supporting body 9, compared with the prior art in which only two seal points (two seal lips) are used, if the same sealing efficiency is ensured, the contact pressure of the seal lip and the slinger in the embodiment can be smaller than that of the double-lip seal ring 3 in the prior art.
The outer main seal lip 14 and the outer auxiliary seal lip 15 are respectively contacted with the outer oil slinger 5, a cavity 16 is formed between the outer main seal lip 14 and the outer oil slinger 5, and through the throttling and expanding effects, namely after the pressure of cooling water and iron scales is too large and enters the cavity 16 through a gap between the outer main seal lip 14 and the outer oil slinger 5, the pressure of the cooling water and the iron scales outside the cavity 16 is suddenly reduced, and meanwhile, the pressure of the cooling water and the iron scales entering the cavity 16 is also reduced, so that a pressure reduction effect is formed, and the sealing effect on impurities such as the cooling water and the iron scales is improved; similarly, the inner main seal lip 12 and the inner auxiliary seal lip 1513 of the auxiliary seal lip 15 are respectively contacted with the inner flinger 2, a cavity 16 is formed among the inner main seal lip 12 and the inner auxiliary seal lip 1513, and the sealing effect on lubricating oil is improved through throttling and capacity expansion effects.
To sum up, it is the utility model discloses a concrete application example, right the utility model discloses the protection scope does not constitute the restriction, adopts the technical scheme of equivalent replacement all to fall within the utility model discloses within the protection scope.
Claims (10)
1. A multi-lip seal ring for a high-speed wire rod mill is characterized in that a support body is cylindrical; and the two sealing lips are respectively arranged at two ends of the supporting body and comprise a plurality of sealing lips, the sealing lips are sequentially and coaxially arranged along the radial direction of the supporting body, and each sealing lip is fixedly arranged at the end part of the supporting body.
2. The multi-lip seal ring for a high-speed wire rolling mill according to claim 1, wherein the end surfaces of the plurality of seal lips at the ends away from the support body are flush.
3. The multi-lip seal ring for a high-speed wire rolling mill of claim 1 wherein the end of the seal lip distal from the support is inclined away from the central axis thereof.
4. The multi-lip seal ring for a high-speed wire rolling mill according to claim 1, wherein a plurality of said seal lips are disposed at intervals so as to form a cavity between two adjacent said seal lips.
5. The multi-lip seal ring for a high-speed wire rod mill according to claim 4, wherein the number of the seal lips in each seal lip portion is two, the outer seal lip is a main seal lip, and the inner seal lip is an auxiliary seal lip.
6. The multi-lip seal ring for the high-speed wire rod rolling mill according to claim 1, wherein a mounting groove for being clamped into a retainer of the rolling mill is formed on an outer side surface of the seal ring main body, and the mounting groove is in interference fit with the retainer.
7. The multi-lip seal ring for a high speed wire rolling mill according to claim 1, wherein the seal lip is a rubber member.
8. The multi-lip seal ring for the high-speed wire rolling mill according to claim 7, wherein an annular clamping groove is formed on an inner wall of the seal ring main body, and the multi-lip seal ring for the high-speed wire rolling mill further comprises an annular supporting framework, and the supporting framework is fixedly installed in the clamping groove.
9. The multi-lip seal ring for a high speed wire rolling mill of claim 8 wherein the support framework is a metal framework.
10. The multi-lip seal ring for a high speed wire rolling mill according to claim 7, wherein the seal lip portion and the support body are integrally connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223183024.4U CN218670633U (en) | 2022-11-30 | 2022-11-30 | Multi-lip sealing ring for high-speed wire rod rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223183024.4U CN218670633U (en) | 2022-11-30 | 2022-11-30 | Multi-lip sealing ring for high-speed wire rod rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218670633U true CN218670633U (en) | 2023-03-21 |
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ID=85542915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223183024.4U Active CN218670633U (en) | 2022-11-30 | 2022-11-30 | Multi-lip sealing ring for high-speed wire rod rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218670633U (en) |
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2022
- 2022-11-30 CN CN202223183024.4U patent/CN218670633U/en active Active
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