CN210765440U - Furnace roller supporting device - Google Patents
Furnace roller supporting device Download PDFInfo
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- CN210765440U CN210765440U CN201921706176.3U CN201921706176U CN210765440U CN 210765440 U CN210765440 U CN 210765440U CN 201921706176 U CN201921706176 U CN 201921706176U CN 210765440 U CN210765440 U CN 210765440U
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Abstract
The utility model provides a stove roller strutting arrangement sets up in the tip of a stove roller, include: the supporting seat is provided with a through hole and sleeved outside the furnace roller, and the surface of the supporting seat is contacted with a furnace body through an expansion joint; the sealing ring is positioned between the furnace roller and the supporting seat; the first water-cooling cavity of annular sets up in the supporting seat and around the stove roller, the sealing washer with the furnace body is located the heterolateral in first water-cooling cavity. Because the temperature of the furnace body is higher, the sealing ring and the furnace body are positioned on the opposite sides of the first water-cooling cavity, so that the furnace body is positioned on the high-temperature side of the first water-cooling cavity, the sealing ring is positioned on the low-temperature side of the first water-cooling cavity, the cooling effect of the first water-cooling cavity on the sealing ring is improved, the sealing ring is not easy to damage, and the service life of the sealing ring is prolonged.
Description
Technical Field
The utility model relates to the technical field of metallurgy, especially, relate to a furnace roller strutting arrangement.
Background
The furnace roller is the main strip steel conveying equipment of a vertical or horizontal continuous annealing furnace in a cold rolling area, two ends of the furnace roller are generally fixed through a furnace roller supporting device, the current commonly used furnace roller supporting device always has the problem of oil leakage, and lubricating oil leaked by the furnace roller supporting device is volatilized under the action of high temperature after penetrating into the furnace due to the fact that the temperature in the furnace is high during the work of the continuous annealing furnace, so that the surface of strip steel can be polluted, furnace roller accretion can be caused, and the quality defect of the strip steel can be caused. The main reason for oil leakage of the furnace roller supporting device is that the sealing ring between the furnace roller supporting device and the furnace roller is in a high-temperature environment for a long time, so that the abrasion of the sealing ring is intensified, and lubricating oil penetrates through the sealing ring to enter the furnace.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stove roller strutting arrangement improves the cooling effect to the sealing washer, so that the sealing washer is difficult to damaged, prolongs its life.
In order to achieve the above object, the utility model provides a furnace roller supporting device sets up in the tip of a furnace roller, include:
the supporting seat is provided with a through hole and sleeved outside the furnace roller, and the surface of the supporting seat is contacted with a furnace body through an expansion joint;
the sealing ring is positioned between the furnace roller and the supporting seat;
the first water-cooling cavity of annular sets up in the supporting seat and around the stove roller, the sealing washer with the furnace body is located the heterolateral in first water-cooling cavity.
Optionally, the furnace roller supporting device further comprises a casing, the casing and the furnace body are located on opposite sides of the supporting seat, the casing is provided with a lubricating cavity, the end of the furnace roller extends into the lubricating cavity, the wall of the casing is connected with the surface of the supporting seat so as to seal the lubricating cavity, and the supporting seat is partially contacted with the lubricating cavity.
Optionally, the shell and the furnace body are located on different sides of the supporting seat.
Optionally, an annular second water-cooling cavity is further arranged in the shell wall of the shell, and the second water-cooling cavity is communicated with the first water-cooling cavity.
Optionally, the end of the furnace roller is further sleeved with a bearing, the bearing is located in the lubricating cavity, the outer wall of the bearing is in contact with the inner wall of the lubricating cavity, and lubricating oil is filled in the lubricating cavity.
Optionally, a positioning sleeve is further sleeved outside the end portion of the furnace roller, one end of the positioning sleeve is in contact with the side wall of the inner ring of the bearing, and the other end of the positioning sleeve is in contact with the surface of the furnace roller.
Optionally, the outer surface of the positioning sleeve is plated with a layer of metal film.
Optionally, an oil baffle plate is arranged on a contact part of the supporting seat and the lubricating cavity, and a gap is formed between an end part of the oil baffle plate and the positioning sleeve.
Optionally, the bottom of casing is provided with leads oil groove and first oil drainage channel, it is located at least to lead the oil groove the outer wall of bearing with between the inner wall in lubrication chamber, the one end intercommunication of first oil drainage channel lead the oil groove, the other end is located outside the casing.
Optionally, a second oil drain channel is further disposed on a portion between the top and the bottom of the lubrication cavity.
Optionally, the temperature in the furnace body is between 850 ℃ and 900 ℃.
The utility model provides a pair of furnace roller strutting arrangement, furnace roller strutting arrangement sets up in the tip of a furnace roller, include: the supporting seat is provided with a through hole and sleeved outside the furnace roller, and the surface of the supporting seat is contacted with a furnace body through an expansion joint; the sealing ring is positioned between the furnace roller and the supporting seat; the first water-cooling cavity of annular sets up in the supporting seat and around the stove roller, the sealing washer with the furnace body is located the heterolateral in first water-cooling cavity. Because the temperature of the furnace body is higher, the sealing ring and the furnace body are positioned on the different sides of the first water-cooling cavity, so that the furnace body is positioned on the high-temperature side of the first water-cooling cavity, the sealing ring is positioned on the low-temperature side of the first water-cooling cavity, the cooling effect of the first water-cooling cavity on the sealing ring is improved, the sealing ring is not easy to damage, and the service life of the sealing ring is prolonged.
Drawings
FIG. 1 is a schematic structural view of a furnace roller supporting device;
fig. 2 is a schematic structural view of a furnace roller supporting device provided by an embodiment of the present invention;
wherein the reference numerals are:
10-furnace roller; 20-a housing; 30-a support seat; 40-a bearing; 50-sealing ring; 60-a water-cooling cavity;
100-furnace roller; 110-a positioning sleeve; 200-a support seat; 300-a furnace body; 400-sealing ring; 510-a first water-cooled chamber; 520-a second water-cooling cavity; 600-a housing; 610-a lubrication chamber; 700-a bearing; 800-oil baffle; 910-oil guiding groove; 920-a first oil drain passage; 930-second oil drainage channel.
Detailed Description
Fig. 1 is a schematic structural view of a furnace roller supporting device. The furnace roller supporting device is arranged at the end part of a furnace roller 10 and comprises a shell 20, a supporting seat 30, a bearing 40, a sealing ring 50 and a water-cooling cavity 60, wherein the supporting seat 30 is sleeved outside the furnace roller 10, and the surface of the supporting seat 30 is contacted with a furnace body through an expansion joint; the shell 20 is provided with a lubricating cavity 210, the end part of the furnace roller 10 extends into the lubricating cavity 210, and the shell wall of the shell 20 is connected with the surface of the supporting seat 30; the end part of the furnace roller 10 is also sleeved with the bearing 40, the bearing 40 is positioned in the lubricating cavity 210, the outer wall of the bearing 40 is in contact with the inner wall of the lubricating cavity 210, and the lubricating cavity 210 is filled with lubricating oil to lubricate the bearing 40. The furnace roller 10 is also sleeved with a positioning sleeve, one end of the positioning sleeve is in contact with the side wall of the bearing 40, and the other end of the positioning sleeve is in contact with the surface of the furnace roller 10 so as to limit the bearing 40 and prevent the bearing 40 from moving along the axial direction of the furnace roller. The seal ring 50 is arranged between the furnace roller 10 and the shell 20, the lubrication cavity 210 is sealed by the seal ring 50, the seal ring 50 is closer to the furnace body relative to the bearing 40 to prevent the lubricating oil in the shell 20 from leaking out and permeating into the furnace of the continuous annealing furnace, and the water cooling cavity 60 is arranged in the shell wall of the shell 20 and used for cooling the bearing 40 and the seal ring 50 to prolong the service life of the bearing 40 and the seal ring 50.
This furnace roller supporting device has the following disadvantages:
1) although the water cooling cavity 60 is arranged in the housing 20 for cooling, the sealing ring 50 is located between the water cooling cavity 60 and the furnace body and is far away from the water cooling cavity 60, and the temperature near the furnace body is higher, which is equivalent to that the sealing ring 50 is located on the high temperature side of the water cooling cavity 60, so that the sealing ring 50 has a poor cooling effect and is easily worn, and further, the lubricating oil in the lubricating cavity 210 enters the furnace through the sealing ring 50.
2) The position of the oil guide groove on the shell 20 is unreasonable, under a high-temperature environment, the furnace roller 10 is heated to extend, and the bearing 40 is driven to axially slide towards the direction far away from the furnace body, so that the lubricating oil is accumulated in the gap between the bearing 40 and the sealing ring 50, when the furnace temperature is reduced, the bearing 40 axially slides towards the direction close to the furnace body, and the lubricating oil in the gap is difficult to discharge because the oil guide groove is arranged at the top of the shell 20, and the lubricating oil in the gap is pushed into the furnace.
Based on this, the utility model provides a stove roller strutting arrangement, stove roller strutting arrangement sets up in the tip of a stove roller, include: the supporting seat is provided with a through hole and sleeved outside the furnace roller, and the surface of the supporting seat is contacted with a furnace body through an expansion joint; the sealing ring is positioned between the furnace roller and the supporting seat; the first water-cooling cavity of annular sets up in the supporting seat and around the stove roller, the sealing washer with the furnace body is located the heterolateral in first water-cooling cavity. Because the temperature of the furnace body is higher, the sealing ring and the furnace body are positioned on the opposite sides of the first water-cooling cavity, so that the sealing ring is positioned on the low-temperature side of the first water-cooling cavity, the cooling effect of the sealing ring on the first water-cooling cavity is improved, the sealing ring is not easy to damage, and the service life of the sealing ring is prolonged.
The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 2, the present embodiment provides a furnace roller supporting device provided at an end of a furnace roller 100, comprising:
the supporting seat 200 is provided with a through hole, sleeved outside the furnace roller 100, and the surface of the supporting seat 200 is contacted with a furnace body 300 through an expansion joint;
a sealing ring 400 between the furnace roller 100 and the supporting base 200;
the annular first water-cooling cavity 510 is arranged in the supporting seat 200 and surrounds the furnace roller 100, the sealing ring 400 and the furnace body 300 are positioned on different sides of the first water-cooling cavity 510, and because the temperature of the furnace body 300 is higher, the sealing ring 400 is farther away from the furnace body 300 than the first water-cooling cavity 510, so that the furnace body 300 is positioned on the high-temperature side of the first water-cooling cavity 510, and the sealing ring 400 is positioned on the low-temperature side of the first water-cooling cavity 510, the cooling effect of the first water-cooling cavity 510 on the sealing ring 400 is improved, and the service life of the sealing ring 400 is prolonged. It can be understood that, since the support base 200 is generally made of metal, after the cooling water is introduced into the first water-cooling cavity 510, even if the first water-cooling cavity 510 is not in direct contact with the sealing ring, the first water-cooling cavity 510 can cool the sealing ring 400 due to the good thermal conductivity of metal. Meanwhile, the first water cooling cavity 510 is arranged in an annular shape, so that the flow of cooling water is facilitated, the cooling area of the sealing ring 400 is large due to the cooling water, and the cooling is more uniform.
Specifically, the furnace body 300 is, for example, a furnace body 300 of a heat treatment furnace, when the heat treatment furnace works, the temperature in the furnace body is between 850 ℃ and 900 ℃, the middle part of the furnace roller 100 is located in the furnace body 300 of the heat treatment furnace, two ends of the furnace roller 100 extend out of the furnace body 300 and are fixed by the furnace roller supporting device, and the furnace roller supporting device can bear axial and radial loads of the furnace roller 100 and is used for supporting the furnace roller 100.
In this embodiment, an expansion pipe is disposed outside the furnace wall of the furnace body 300, and the support base 200 is in contact with the furnace body 300 through the expansion pipe, and the expansion pipe is used for absorbing thermal expansion caused by thermal expansion and contraction of the furnace body 300.
With continued reference to fig. 2, the furnace roller supporting device further includes a housing 600 having a lubrication cavity 610, the end of the furnace roller 100 extends into the lubrication cavity 610, and the wall of the housing 600 is connected to the surface of the supporting seat 200 to close the lubrication cavity 610, and the supporting seat 200 is partially in contact with the lubrication cavity 610. In this embodiment, the shell 600 is an annular structure, one end of the shell 600 extends in a direction perpendicular to the axial direction of the furnace roller 100 so as to be connected to the supporting seat 200, the extending portion of the shell 600 is symmetrical with respect to the central axis of the furnace roller 100, and the shell 600 and the supporting seat 200 are detachably connected, for example, by a screw connection or a pin connection, which is not limited in this application.
Further, the housing 600 and the furnace body 300 are located at opposite sides of the supporting seat 200, and it can be understood that the housing 600 is connected to the furnace body 300 through the supporting seat 200.
Referring to fig. 2, a bearing 700 is further sleeved at an end of the furnace roller 100, the bearing 700 is located in the lubrication cavity 610, an outer wall of the bearing 700 contacts with an inner wall of the lubrication cavity 610, and the lubrication cavity 610 is filled with lubricating oil. The bearing 700 is used for supporting the furnace roller 100 and reducing the friction coefficient of the furnace roller 100 in the rotating process, in the embodiment, the bearing 700 comprises an inner ring and an outer ring, the inner ring can rotate synchronously with the furnace roller 100, and when the furnace roller 100 expands with heat and contracts with cold, the outer ring can slide along the axial direction of the furnace roller 100. The lubricating oil is used to lubricate the bearing 700, and reduce the frictional force between the bearing 700 and the furnace roller 100.
The seal ring 400 is a rotary seal ring, and is disposed between the furnace roller 100 and the supporting seat 200 to prevent the leakage of the lubricating oil in the lubricating cavity 610.
Referring to fig. 2, a positioning sleeve 110 is further sleeved outside the end of the furnace roller 100, one end of the positioning sleeve 110 is in contact with the inner ring side wall of the bearing 700, and the other end of the positioning sleeve 110 is in contact with the surface of the furnace roller 100. It can be understood that the locating sleeve is used for limiting the bearing 700 and preventing the bearing 700 from moving along the axial direction of the furnace roller 100.
Furthermore, the outer surface of the positioning sleeve is plated with a layer of metal film to improve the surface hardness of the positioning sleeve. It is understood that the seal ring is located between the positioning sleeve 110 and the supporting seat 200, and when the positioning sleeve 110 moves along with the furnace roller 100, relative movement is generated between the positioning sleeve 110 and the seal ring 400, which helps to reduce the abrasion of the seal ring 400 by coating the outer surface of the positioning sleeve 110, and the material of the metal film includes, but is not limited to, chromium, but may be other methods capable of increasing the surface hardness of the positioning sleeve 110, such as quenching, which is not limited in this application.
With reference to fig. 2, an oil baffle 800 is disposed at a portion of the supporting seat 200 contacting the lubricating cavity 610, and a gap is formed between an end of the oil baffle 800 and the positioning sleeve 110 to prevent the positioning sleeve 110 from damaging the oil baffle 800. Specifically, a gap with a certain distance is formed between the sealing ring 400 and the bearing 700, after the furnace roller 100 extends into the furnace roller supporting device, a cavity is formed between the inner walls of the furnace roller 100, the supporting seat 200, the sealing ring 400, the lubricating cavity 610 and the bearing 700, when the furnace roller 100 contracts with cold, the outer ring of the bearing 700 can slide along the axial direction of the furnace roller 100 towards the direction close to the furnace body 300, and the lubricating oil is continuously pressed into the cavity, so that the sealing ring 400 is easily damaged and the lubricating oil is easily leaked, and the excessive lubricating oil can be prevented from contacting the sealing ring 400 by the oil baffle plate 800, so that the risk of the lubricating oil entering the furnace is reduced.
Referring to fig. 2, the bottom of the housing 600 is provided with an oil guiding groove 910 and a first oil draining channel 920, which are communicated with each other, the oil guiding groove 910 is at least located between the outer wall of the bearing 700 and the inner wall of the lubricating cavity 610, one end of the first oil draining channel 920 is communicated with the oil guiding groove 910, and the other end is located outside the housing 600. Lead oil groove 910 and first oil drainage channel 920 will mainly be used when stove roller 100 low temperature contracts lubricating oil in the cavity is derived because lead oil groove 910 and first oil drainage channel 920 and set up in the bottom of casing 200, and the lubricating oil in the cavity is more, and the oil pressure is big more, passes through more easily first oil drainage channel 920 discharges.
Further, a second oil discharge passage 930 is provided at a portion between the top and the bottom of the lubricating chamber 610, and since the lubricating oil in the housing 600 is easily contaminated after a long-term use and becomes waste oil, the waste oil is discharged through the second oil discharge passage 930 so as to be convenient for injecting new lubricating oil.
In this embodiment, an annular second water-cooling cavity 520 is further disposed in the shell wall of the shell 600, and the second water-cooling cavity 520 is communicated with the first water-cooling cavity 510. The second water cooling chamber 520 is mainly used for cooling the housing 600 and the bearing 700, reducing the temperature thereof and prolonging the service life thereof. Specifically, the one end of second water-cooling chamber 520 that keeps away from supporting seat 200 is for being provided with the water inlet, the other end with first water-cooling chamber 510 intercommunication so that the flow of water simplifies cooling structure among the stove roller strutting arrangement can further cool off sealing washer 400 simultaneously, and the cooling effect is better.
To sum up, the embodiment of the utility model provides a stove roller strutting arrangement sets up in the tip of a stove roller, include: the supporting seat is provided with a through hole and sleeved outside the furnace roller, and the surface of the supporting seat is contacted with a furnace body through an expansion joint; the sealing ring is positioned between the furnace roller and the supporting seat; the first water-cooling cavity of annular sets up in the supporting seat and around the stove roller, the sealing washer with the furnace body is located the heterolateral in first water-cooling cavity. Because the temperature of the furnace body is higher, the sealing ring and the furnace body are positioned on the opposite sides of the first water-cooling cavity, so that the furnace body is positioned on the high-temperature side of the first water-cooling cavity, the sealing ring is positioned on the low-temperature side of the first water-cooling cavity, the cooling effect of the first water-cooling cavity on the sealing ring is improved, the sealing ring is not easy to damage, the service life of the sealing ring is prolonged, and the risk that lubricating oil enters the furnace body is reduced.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (10)
1. The utility model provides a stove roller strutting arrangement sets up in the tip of a stove roller which characterized in that includes:
the supporting seat is provided with a through hole and sleeved outside the furnace roller, and the surface of the supporting seat is contacted with a furnace body through an expansion joint;
the sealing ring is positioned between the furnace roller and the supporting seat;
the first water-cooling cavity of annular sets up in the supporting seat and around the stove roller, the sealing washer with the furnace body is located the heterolateral in first water-cooling cavity.
2. The furnace roller supporting device according to claim 1, further comprising a housing, the housing and the furnace body being located on opposite sides of the supporting base, the housing having a lubrication chamber into which an end portion of the furnace roller protrudes, and a wall of the housing being connected to a surface of the supporting base so as to close the lubrication chamber, the supporting base being in partial contact with the lubrication chamber.
3. The furnace roller supporting device according to claim 2, wherein an annular second water-cooling chamber is further provided in the shell wall of the shell, and the second water-cooling chamber is communicated with the first water-cooling chamber.
4. The furnace roller supporting device according to claim 2, wherein a bearing is further sleeved on the end of the furnace roller, the bearing is located in the lubricating cavity, the outer wall of the bearing is in contact with the inner wall of the lubricating cavity, and lubricating oil is filled in the lubricating cavity.
5. The furnace roller supporting device according to claim 4, wherein a positioning sleeve is further sleeved outside the end portion of the furnace roller, one end of the positioning sleeve is in contact with the side wall of the inner ring of the bearing, and the other end of the positioning sleeve is in contact with the surface of the furnace roller to limit the bearing.
6. The furnace roller supporting device according to claim 5, wherein an outer surface of the position sleeve is coated with a metal film.
7. The furnace roller supporting device according to claim 5, wherein an oil baffle plate is provided on a portion of the supporting seat which contacts the lubrication cavity, and a gap is provided between an end of the oil baffle plate and the positioning sleeve.
8. The furnace roller supporting device according to claim 4, wherein the bottom of the housing is provided with an oil guiding groove and a first oil draining passage, the oil guiding groove is at least positioned between the outer wall of the bearing and the inner wall of the lubricating cavity, one end of the first oil draining passage is communicated with the oil guiding groove, and the other end of the first oil draining passage is positioned outside the housing.
9. The furnace roller supporting device according to claim 8, wherein a second oil drain passage is further provided in a portion between the top and the bottom of the lubrication chamber.
10. The furnace roller supporting device according to claim 1, wherein the temperature in the furnace body is between 850 ℃ and 900 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921706176.3U CN210765440U (en) | 2019-10-12 | 2019-10-12 | Furnace roller supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921706176.3U CN210765440U (en) | 2019-10-12 | 2019-10-12 | Furnace roller supporting device |
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| Publication Number | Publication Date |
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| CN210765440U true CN210765440U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921706176.3U Active CN210765440U (en) | 2019-10-12 | 2019-10-12 | Furnace roller supporting device |
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| CN (1) | CN210765440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564947A (en) * | 2019-10-12 | 2019-12-13 | 宝钢工程技术集团有限公司 | Furnace roller supporting device |
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2019
- 2019-10-12 CN CN201921706176.3U patent/CN210765440U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564947A (en) * | 2019-10-12 | 2019-12-13 | 宝钢工程技术集团有限公司 | Furnace roller supporting device |
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