CN210045762U - Acid rolling unit backing roll bearing frame blast pipe structure - Google Patents
Acid rolling unit backing roll bearing frame blast pipe structure Download PDFInfo
- Publication number
- CN210045762U CN210045762U CN201920728102.3U CN201920728102U CN210045762U CN 210045762 U CN210045762 U CN 210045762U CN 201920728102 U CN201920728102 U CN 201920728102U CN 210045762 U CN210045762 U CN 210045762U
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- Prior art keywords
- hole
- pipe body
- elbow
- thread
- exhaust
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- Expired - Fee Related
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Abstract
The utility model discloses a supporting roll bearing seat exhaust pipe structure of an acid mill set.A through hole is arranged above a thrust end cover along the radial direction, a thread is arranged in the through hole, a thread is arranged on the excircle below the exhaust pipe, and the exhaust pipe is screwed in the through hole; the exhaust pipe comprises a pipe body, a lower screwing handle is arranged on the outer side below the pipe body, and a thread section matched with the through hole is arranged on the outer circle below the pipe body; the upper part of the pipe body is provided with an upper screwing handle, a through hole in the inner side of the upper part of the pipe body is provided with a thread, a thread is arranged below the elbow, the lower part of the elbow penetrates through the sealing gasket and then is screwed on the upper part of the pipe body, and a locking nut is also arranged below the elbow and screwed on the outer side of the sealing gasket; the screw plug blocks the exhaust hole of the thrust end cover; the utility model has the advantages that: the air is exhausted in a mode that the elbow faces downwards, so that emulsion from top to bottom is prevented from entering the cavity of the bearing seat, and meanwhile, the air exhaust is not influenced; the splashed emulsion is prevented from permeating into the bearing seat cavity.
Description
Technical Field
The utility model relates to the field of machinary, a bearing frame specifically says so, more specifically says an exhaust structure of acid rolling unit's bearing frame.
Background
The five-stand six-roller rolling mill has large rolling force, and the maximum rolling force reaches 3300T; the rolling speed is high, and the highest speed reaches 1500 m/min; the maximum width of the rolled strip steel reaches 2150mm, so that the supporting roller bearing bears large load in the rolling process, a large amount of heat is generated during working, the heat is cooled through a lubricating oil circulating system, and an air release plug with a small hole is arranged on a thrust end cover of a bearing seat and communicated with the outside to reduce the temperature in the bearing seat.
The cold rolling process is characterized in that tension rolling is adopted in the rolling process, rolling emulsion is used for carrying out process cooling and lubrication, and work hardening is generated after the strip steel is rolled. The characteristics of the cold rolling process require that the sealing performance of the bearing seat is excellent, so that the rolling emulsion can not enter the bearing seat, and the lubricating oil in the bearing seat is prevented from leaking. The emulsion intrudes into the bearing seat to cause the viscosity reduction, deterioration and emulsification of the lubricating oil, even failure, and the bearing can not be well lubricated, so that the service life can be reduced, and the production spare part cost can be increased. If the lubricating oil in the bearing seat leaks, the lubricating oil directly enters the emulsion, so that the content index of the mixed oil in the rolling emulsion is increased, the defects of oil spots, color difference and the like are generated on the surface of the rolled strip steel, the product degradation is caused, the treatment cost of the emulsion system is increased, and the economic benefit is influenced.
The lower supporting roller bearing seat is positioned at the lowest part of the rack, rolling emulsion with very high pressure and flow is directly sprayed on the lower supporting roller bearing seat, and a small amount of emulsion inevitably enters the bearing seat through an air release plug with a small hole; in addition, the design of the thrust end cover of the supporting roller bearing seat in the prior art is not perfect, the condensate water at the lowest part in the thrust bearing seat can not be completely drained and enters the circulating oil, so that the lubricating condition of the thrust bearing is severe, and the service life of the bearing is seriously influenced.
Disclosure of Invention
In order to solve the technical problem, the utility model discloses an exhaust pipe of design on backing roll bearing frame thrust end cover down eliminates former thrust end cover exhaust hole design defect, makes it both can reach and prevents that the emulsion from invading the bearing frame, can make the heat in the bearing frame distribute away again, reduces in the bearing frame with external difference in temperature, reduces the condition that the comdenstion water formed. Thereby ensuring that the thrust bearing is in a good lubricating condition. The specific technical scheme is as follows:
a through hole is radially arranged above a thrust end cover, threads are arranged in the through hole, threads are arranged on the outer circle below the exhaust pipe, and the exhaust pipe is screwed in the through hole; the exhaust pipe comprises a pipe body, the pipe body is a cylindrical through hole, a lower screwing handle is arranged on the outer side below the pipe body, and a thread section matched with the through hole is arranged on the outer circle below the pipe body; the upper part of the pipe body is provided with an upper screwing handle, a through hole in the inner side of the upper part of the pipe body is provided with a thread, a thread is arranged below the elbow, the lower part of the elbow penetrates through the sealing gasket and then is screwed on the upper part of the pipe body, and a locking nut is also arranged below the elbow and screwed on the outer side of the sealing gasket; the screw plug blocks the exhaust hole of the thrust end cover; the outlet height of the elbow is greater than the height of the exhaust hole.
The height of the exhaust pipe is 50-60mm greater than that of the exhaust hole.
In order to prevent the splashed emulsion from entering the lower part of the elbow when moving upwards and influencing exhaust, a conical part is arranged below the elbow.
The taper of the taper part is 6-8 degrees.
The utility model has the advantages that: the air is exhausted in a mode that the elbow faces downwards, so that emulsion from top to bottom is prevented from entering the cavity of the bearing seat, and meanwhile, the air exhaust is not influenced; and the higher position also avoids the splashed emulsion from permeating into the bearing seat cavity.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural view of the exhaust pipe.
Detailed Description
The present invention is described in detail with reference to the accompanying drawings, as shown in fig. 1, the prior art is to arrange a horizontal exhaust hole 2 on a vertical end cover 1 of a support roll bearing seat, and the structure of the present invention is as shown in fig. 2, the exhaust hole 2 is blocked by a plug, a through hole is radially arranged above a thrust end cover 5, a thread is arranged in the through hole, a thread is arranged on the outer circle below an exhaust pipe 3, and the exhaust pipe 3 is screwed in the through hole; as shown in fig. 3, the exhaust pipe 3 includes a pipe body 31, the pipe body 31 is a cylindrical through hole, a lower screwing handle 34 is arranged on the outer side of the lower part of the pipe body 31, and a thread section 32 matched with the through hole is arranged on the outer circle of the lower part of the pipe body; the upper part of the pipe body is provided with an upper screwing handle 35, a through hole in the inner side of the upper part of the pipe body is provided with a thread, a thread is arranged below the elbow, the lower part of the elbow penetrates through a sealing gasket 37 and then is screwed on the upper part of the pipe body, a locking nut 33 is also arranged below the elbow, and the locking nut 33 is screwed on the outer side of the sealing gasket 37; the outlet height of the elbow is greater than the height of the exhaust hole 2.
The height of the exhaust pipe is 50-60mm greater than that of the exhaust hole.
To prevent the splashed emulsion from entering below the elbow as it moves upward, and affecting the exhaust, a tapered portion 361 is provided below the elbow.
The taper of the taper part is 6-8 degrees.
The component 4 in the figure is a bearing.
Claims (4)
1. The utility model provides a sour rolling mill group backing roll bearing frame exhaust pipe structure which characterized in that: a through hole is arranged above the thrust end cover along the radial direction, a thread is arranged in the through hole, a thread is arranged on the outer circle below the exhaust pipe, and the exhaust pipe is screwed in the through hole; the exhaust pipe comprises a pipe body, the pipe body is a cylindrical through hole, a lower screwing handle is arranged on the outer side below the pipe body, and a thread section matched with the through hole is arranged on the outer circle below the pipe body; the upper part of the pipe body is provided with an upper screwing handle, a through hole in the inner side of the upper part of the pipe body is provided with a thread, a thread is arranged below the elbow, the lower part of the elbow penetrates through the sealing gasket and then is screwed on the upper part of the pipe body, and a locking nut is also arranged below the elbow and screwed on the outer side of the sealing gasket; the screw plug blocks the exhaust hole of the thrust end cover; the outlet height of the elbow is greater than the height of the exhaust hole.
2. A backup roll bearing housing exhaust pipe structure for an acid mill train as claimed in claim 1, wherein: the height of the exhaust pipe is 50-60mm greater than that of the exhaust hole.
3. A backup roll bearing housing exhaust pipe structure for an acid mill train as claimed in claim 1, wherein: the lower part of the elbow is a conical part.
4. A backup roll bearing block exhaust pipe structure for an acid mill set according to claim 3, characterized in that: the taper of the taper part is 6-8 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728102.3U CN210045762U (en) | 2019-05-21 | 2019-05-21 | Acid rolling unit backing roll bearing frame blast pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920728102.3U CN210045762U (en) | 2019-05-21 | 2019-05-21 | Acid rolling unit backing roll bearing frame blast pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210045762U true CN210045762U (en) | 2020-02-11 |
Family
ID=69382374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920728102.3U Expired - Fee Related CN210045762U (en) | 2019-05-21 | 2019-05-21 | Acid rolling unit backing roll bearing frame blast pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210045762U (en) |
-
2019
- 2019-05-21 CN CN201920728102.3U patent/CN210045762U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 Termination date: 20200521 |