CN103272850A - High-speed mill roller box structure - Google Patents
High-speed mill roller box structure Download PDFInfo
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- CN103272850A CN103272850A CN2013101887520A CN201310188752A CN103272850A CN 103272850 A CN103272850 A CN 103272850A CN 2013101887520 A CN2013101887520 A CN 2013101887520A CN 201310188752 A CN201310188752 A CN 201310188752A CN 103272850 A CN103272850 A CN 103272850A
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- roll shaft
- roller box
- box structure
- mill roller
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Abstract
The invention discloses a high-speed mill roller box structure. Oil film bearings are installed between the front end of each roll shaft and each roller box panel and between the rear end of each roll shaft and a roller box body. Taper transition structures are designed at the matched positions of the front ends of the roll shafts and the oil film bearings. According to the high-speed mill roller box structure, four-percent tapers are designed at the matched positions of the front ends of the roll shafts and the oil film bearings, when the high-speed mill roller box structure is deformed due to rolling torsion in use, opposite faces of each roll shaft and each oil film bearing form a straight line, the thickness of each oil film is 0.3mm, at the moment, the highest surge pressure which can be born by the oil films reaches more than 300KN, influences of deformation and deformation control of the roll shafts in a deformation rolling process on the roll shafts and the bearings are removed, and the phenomena of shaft burning and bearing burning can not be caused in a high-speed wire rod rolling process.
Description
Technical field
The present invention relates to fast mill roller case.
Background technology
In the high-speed wire rolling process because bigger radial pressure arranged, at operation of rolling axis all the time at little deformation state, what use at roll shaft is filmatic bearing special-purpose on the high-speed wire rolling, roll shaft is subjected to bigger torsion when low level is rolling especially, making the roll shaft distortion is to support by oil film between filmatic bearing and the roll shaft greatly, when the roll shaft distortion is big in use, the oil film instability causes rupture of oil film between roll shaft and the filmatic bearing thereby easily make, thereby cause the stuck back of roll shaft and excentric sleeve roller case scaling loss, have a strong impact on ordinary production.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of fast mill roller box structure, solves the distortion that roll shaft takes place in the distortion operation of rolling, and control distortion back is to the influence of roll shaft and bearing.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of fast mill roller box structure, comprise the roller case body that at least one roll shaft and the place ahead are uncovered, described roller case body the place ahead is uncovered by the capping of roller case panel, the roll shaft front end is supported on the roller case panel, the roll shaft rear end is supported on roller case body bottom, between described roll shaft rear and front end and roller case panel and the roller case body filmatic bearing is installed, and the cooperation position design of described roll shaft front end and filmatic bearing has the tapering transition structure.
Preferably, the angle of described tapering transition structure is four minutes.
Preferably, the thickness of oil film is 0.3mm between described roll shaft front end and the filmatic bearing.
Preferably, described roll shaft is circumferentially with preceding bulge loop in tapering transition structure the place ahead along roll shaft, bulge loop the place ahead is provided with the axial cone head before described, be provided with annular groove between bulge loop and axial cone head and the tapering transition structure before described, described roll shaft preceding bulge loop and annular groove outer circumferential sides be provided with double-lip seal reach outside ring oiler, interior ring oiler.
Preferably, described axial cone head outer circumferential sides socket collars is provided with tapered sleeve between described collars and the axial cone head, and described tapered sleeve compresses with high pressure between collars and axial cone head.
Preferably, described roll shaft front end head is provided with over cap, and described over cap inwall is hierarchic structure.
Preferably, described tapered sleeve fore end outer circumference side is provided with a circle flange, and described flange cooperates with the hierarchic structure oral area of over cap inwall.
Preferably, described roll shaft rear end is circumferentially with the back bulge loop in filmatic bearing the place ahead along roll shaft, is provided with eccentric bushing between described back bulge loop and the filmatic bearing.
Preferably, described roll shaft rear end is provided with thrust bearing at the roll shaft rear, and described thrust bearing is by the capping of thrust bearing end cap.
The Position Design that roll shaft of the present invention cooperates with filmatic bearing at front end 4 minutes tapering, when use is subjected to the distortion of rolling torsion, roll shaft forms straight line with filmatic bearing mutually in relative one side, oil film thickness is at 0.3mm, oil film can bear the highest surge and reached more than the 300KN this moment, solved the distortion that roll shaft takes place in the distortion operation of rolling, and control distortion back in the high-speed wire rolling process excessively heated axle, bearing phenomenon can not appear to the influence of roll shaft and bearing.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further described:
Fig. 1 is roller box structure schematic diagram.
The specific embodiment
As shown in Figure 1, fast mill roller case comprises the uncovered roller case body of at least one roll shaft 1 and the place ahead, described roller case body the place ahead is uncovered by 8 cappings of roller case panel, roll shaft 1 front end is supported on the roller case panel 8, roll shaft 1 rear end is supported on roller case body bottom, between described roll shaft rear and front end and roller case panel 8 and the roller case body filmatic bearing 12 is installed, the cooperation position design of described roll shaft front end and filmatic bearing 12 has tapering transition structure 13.The angle of described tapering transition structure 13 is four minutes.The thickness of oil film is 0.3mm between described roll shaft front end and the filmatic bearing.
Described roll shaft 1 is bulge loop 14 before tapering transition structure 13 the place aheads are circumferentially with along roll shaft, bulge loop 14 the place aheads are provided with axial cone head 16 before described, be provided with annular groove 15 between bulge loop 14 and axial cone head and the tapering transition structure before described, described axial cone head outer circumferential sides socket collars 3 is provided with tapered sleeve 4 between described collars 3 and the axial cone head 16.Between collars 3 and axial cone head 16, compress with high pressure, locked by static pressure, between high-speed wire rolling process collars 3 and roll shaft 1, do not produce relative motion.
Described roll shaft front end head is provided with over cap 2; described over cap 2 inwalls are hierarchic structure 18; described tapered sleeve fore end outer circumference side is provided with a circle flange 17, and described flange 17 cooperates with hierarchic structure 18 oral areas of over cap inwall, plays the accident safety effect in the operation of rolling.
Described roll shaft 1 preceding bulge loop 14, annular groove 15 outer circumferential sides be provided with double-lip seal 6, outer ring oiler 5 and in ring oiler 7.In the high-speed wire rolling process, outer ring oiler 5 and interior ring oiler 7 relatively rotate with double-lip seal 6, and the ceramic coating face of ring oiler 7 forms a sealing effectiveness in being reached by double-lip seal and outer ring oiler 5, and high line cooling water and filmatic bearing oil spilling are separated.
Described roll shaft 1 rear end is circumferentially with back bulge loop 19 in filmatic bearing 12 the place aheads along roll shaft, is provided with eccentric bushing 9 between described back bulge loop 19 and the filmatic bearing 12.Described roll shaft rear end is provided with thrust bearing 10 at the roll shaft rear.Thrust bearing is by 11 cappings of thrust bearing end cap.Prevent the roll shaft up and down play that runs up down.
Filmatic bearing is to utilize hydrodynamic lubrication to form a complete pressure oil film in certain space, separates two working surfaces, and direct contact does not take place, and reaches the state of fluid friction.When tapering is excessive, bigger at roll shaft and filmatic bearing head space, the pressure of bearing working zone feeding has and axle can't be lifted at work, the thicker formation of oil film is difficult at work in other words, make that can't to bear higher torsion in the operation of rolling rolling, when tapering is too small, often do not reach the required requirement of design concept.The position optimization that roll shaft of the present invention cooperates with filmatic bearing at front end has designed 4 minutes tapering.
Claims (9)
1. fast mill roller box structure, comprise the roller case body that at least one roll shaft and the place ahead are uncovered, described roller case body the place ahead is uncovered by the capping of roller case panel, the roll shaft front end is supported on the roller case panel, the roll shaft rear end is supported on roller case body bottom, between described roll shaft rear and front end and roller case panel and the roller case body filmatic bearing is installed, the cooperation position design of described roll shaft front end and filmatic bearing has the tapering transition structure.
2. fast mill roller box structure according to claim 1, it is characterized in that: the angle of described tapering transition structure is four minutes.
3. fast mill roller box structure according to claim 2, it is characterized in that: the thickness of oil film is 0.3mm between described roll shaft front end and the filmatic bearing.
4. fast mill roller box structure according to claim 1, it is characterized in that: described roll shaft is circumferentially with preceding bulge loop in tapering transition structure the place ahead along roll shaft, bulge loop the place ahead is provided with the axial cone head before described, be provided with annular groove between bulge loop and axial cone head and the tapering transition structure before described, described roll shaft preceding bulge loop and annular groove outer circumferential sides be provided with double-lip seal reach outside ring oiler, interior ring oiler.
5. fast mill roller box structure according to claim 4 is characterized in that: described axial cone head outer circumferential sides socket collars, be provided with tapered sleeve between described collars and the axial cone head, and described tapered sleeve compresses with high pressure between collars and axial cone head.
6. fast mill roller box structure according to claim 5, it is characterized in that: described roll shaft front end head is provided with over cap, and described over cap inwall is hierarchic structure.
7. fast mill roller box structure according to claim 6 is characterized in that: described tapered sleeve fore end outer circumference side is provided with a circle flange, and described flange cooperates with the hierarchic structure oral area of over cap inwall.
8. fast mill roller box structure according to claim 7 is characterized in that: described roll shaft rear end is circumferentially with the back bulge loop in filmatic bearing the place ahead along roll shaft, is provided with eccentric bushing between described back bulge loop and the filmatic bearing.
9. fast mill roller box structure according to claim 8, it is characterized in that: described roll shaft rear end is provided with thrust bearing at the roll shaft rear, and described thrust bearing is by the capping of thrust bearing end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101887520A CN103272850A (en) | 2013-05-20 | 2013-05-20 | High-speed mill roller box structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101887520A CN103272850A (en) | 2013-05-20 | 2013-05-20 | High-speed mill roller box structure |
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| Publication Number | Publication Date |
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| CN103272850A true CN103272850A (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101887520A Pending CN103272850A (en) | 2013-05-20 | 2013-05-20 | High-speed mill roller box structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715694A (en) * | 2020-07-20 | 2020-09-29 | 西安威科多机电设备有限公司 | Roll ring type cantilever roll box and rolling mill assembly with same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2380315Y (en) * | 1998-01-15 | 2000-05-31 | 北京钢成冶金机械技术开发公司 | Novel wire-material fine-rolling machine frame |
| JP2001062506A (en) * | 1999-08-27 | 2001-03-13 | Daito Seisakusho:Kk | Method and equipment to support work roll for 4-stage rolling mill |
| CN101590490A (en) * | 2009-03-13 | 2009-12-02 | 东阳市朋诚科技有限公司 | A kind of line, bar rolling mill taper bush |
| CN201875141U (en) * | 2010-12-14 | 2011-06-22 | 哈尔滨广旺机电设备制造有限公司 | Oil-gas sealing device for roll box of finishing mill |
| CN202263766U (en) * | 2011-10-31 | 2012-06-06 | 西安航空发动机集团机电石化设备有限公司 | Finishing mill group for rolling copper |
| CN103056166A (en) * | 2013-02-19 | 2013-04-24 | 中冶赛迪工程技术股份有限公司 | Adaptive roller group |
| CN203253727U (en) * | 2013-05-20 | 2013-10-30 | 浙江朋诚科技有限公司 | Roller box structure of high-speed mill |
-
2013
- 2013-05-20 CN CN2013101887520A patent/CN103272850A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2380315Y (en) * | 1998-01-15 | 2000-05-31 | 北京钢成冶金机械技术开发公司 | Novel wire-material fine-rolling machine frame |
| JP2001062506A (en) * | 1999-08-27 | 2001-03-13 | Daito Seisakusho:Kk | Method and equipment to support work roll for 4-stage rolling mill |
| CN101590490A (en) * | 2009-03-13 | 2009-12-02 | 东阳市朋诚科技有限公司 | A kind of line, bar rolling mill taper bush |
| CN201875141U (en) * | 2010-12-14 | 2011-06-22 | 哈尔滨广旺机电设备制造有限公司 | Oil-gas sealing device for roll box of finishing mill |
| CN202263766U (en) * | 2011-10-31 | 2012-06-06 | 西安航空发动机集团机电石化设备有限公司 | Finishing mill group for rolling copper |
| CN103056166A (en) * | 2013-02-19 | 2013-04-24 | 中冶赛迪工程技术股份有限公司 | Adaptive roller group |
| CN203253727U (en) * | 2013-05-20 | 2013-10-30 | 浙江朋诚科技有限公司 | Roller box structure of high-speed mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715694A (en) * | 2020-07-20 | 2020-09-29 | 西安威科多机电设备有限公司 | Roll ring type cantilever roll box and rolling mill assembly with same |
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| PB01 | Publication | ||
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Application publication date: 20130904 |