CN103316922A - Roll shaft structure of high-speed rolling mill - Google Patents
Roll shaft structure of high-speed rolling mill Download PDFInfo
- Publication number
- CN103316922A CN103316922A CN2013101880127A CN201310188012A CN103316922A CN 103316922 A CN103316922 A CN 103316922A CN 2013101880127 A CN2013101880127 A CN 2013101880127A CN 201310188012 A CN201310188012 A CN 201310188012A CN 103316922 A CN103316922 A CN 103316922A
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- roll shaft
- oil film
- deformation
- bearings
- filmatic bearing
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Abstract
The invention discloses a roll shaft structure of a high-speed rolling mill. Oil film bearings are installed at the front end and the rear end of a roll shaft, a taper transition structure is designed at the matched position of the front end of the roll shaft and the oil film bearings, and an angle of the taper transition structure is quartered. Quartered tapers are designed at the matched position of the front end of the roll shaft and the oil film bearings; when the roll shaft is subjected to rolling torsion deformation in the using process, a straight line is formed on one opposite side by the roll shaft and the oil film bearings, the oil film thickness is 0.3mm, the maximum impact pressure which an oil film can bear at the time is over 300KN, the problem of deformation of the roll shaft in the deformation rolling process is solved, influence on the roll shaft and the bearings after deformation is controlled, and shaft burning and bearing burning in the high-speed wire rolling process are avoided.
Description
Technical field
The present invention relates to the fast mill roll shaft structure.
Background technology
In the high-speed wire rolling process because larger radial pressure being 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 subject to larger 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 larger in use, oil film is unstable to cause rupture of oil film thereby easily make between roll shaft and the filmatic bearing, thereby cause the stuck rear roller case scaling loss of roll shaft and excentric sleeve, have a strong impact on normal production.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of fast mill roll shaft structure, solves the distortion that roll shaft occurs in the distortion operation of rolling, and the impact of the rear roll shaft of control distortion and bearing.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of fast mill roll shaft structure, the roll shaft rear and front end is equipped with filmatic bearing, it is characterized in that: the cooperation position of described roll shaft front end and filmatic bearing is designed with 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 fore end outer circumference side is socketed with collars in tapering transition structure the place ahead.
The Position Design that roll shaft of the present invention cooperates with filmatic bearing at front end 4 minutes tapering, when use procedure is subject to rolling torsion distortion, 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 occurs in the distortion operation of rolling, and the impact of the rear roll shaft of control distortion and bearing, excessively heated axle, bearing phenomenon can not appear in the high-speed wire rolling process.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments:
Fig. 1 is roller box structure schematic diagram.
The specific embodiment
Specify fast mill roll shaft structure of the present invention below in conjunction with roller box structure shown in Figure 1.
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 1 rear and front end and roller case panel 8 and the roller case body filmatic bearing 12 is installed, the cooperation position of described roll shaft 1 front end and filmatic bearing 12 is designed with 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 1 front end and the filmatic bearing 12.
Described roll shaft 1 is bulge loop 14 before tapering transition structure 13 the place aheads are circumferentially with along roll shaft, described front bulge loop 14 the place aheads are provided with axial cone head 16, be provided with annular groove 15 between described front bulge loop 14 and axial cone head 16 and the tapering transition structure 13, described axial cone head 16 outer circumferential sides socket collars 3 is provided with tapered sleeve 4 between described collars 3 and the axial cone head 16.Tapered sleeve 4 compresses with high pressure between collars 3 and axial cone head 16, locked by static pressure, does not produce relative motion between high-speed wire rolling process collars 3 and roll shaft 1.
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 is provided with double-lip seal 6, outer ring oiler 5 and interior ring oiler 7 in front bulge loop 14, annular groove 15 outer circumferential sides.In the high-speed wire rolling process, outer ring oiler 5 and interior ring oiler 7 relatively rotates with double-lip seal 6, forms a sealing effectiveness by the ceramic coating face of double-lip seal 6 and outer ring oiler 5 and interior ring oiler 7, and high line cooling water and filmatic bearing oil spilling are separated.
Described roll shaft 1 rear end bulge loop 19 after filmatic bearing 12 the place aheads are circumferentially with along roll shaft is provided with eccentric bushing 9 between described rear 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 film in certain space, separates two working surfaces, and direct contact does not occur, and reaches the state of fluid friction.When tapering is excessive, larger at roll shaft and filmatic bearing head space, the pressure that passes into of bearing working zone 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 (4)
1. fast mill roll shaft structure, the roll shaft rear and front end is equipped with filmatic bearing, it is characterized in that: the cooperation position of described roll shaft front end and filmatic bearing is designed with the tapering transition structure.
2. fast mill roll shaft structure according to claim 1, it is characterized in that: the angle of described tapering transition structure is four minutes.
3. fast mill roll shaft 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 roll shaft structure according to claim 1, it is characterized in that: described roll shaft fore end outer circumference side is socketed with collars in tapering transition structure the place ahead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101880127A CN103316922A (en) | 2013-05-20 | 2013-05-20 | Roll shaft structure of high-speed rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101880127A CN103316922A (en) | 2013-05-20 | 2013-05-20 | Roll shaft structure of high-speed rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103316922A true CN103316922A (en) | 2013-09-25 |
Family
ID=49186133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101880127A Pending CN103316922A (en) | 2013-05-20 | 2013-05-20 | Roll shaft structure of high-speed rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103316922A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478090A (en) * | 1993-06-16 | 1995-12-26 | Morgan Construction Company | Interlocked seal and sleeve for rolling mill oil film bearing |
| JPH1110209A (en) * | 1997-06-25 | 1999-01-19 | Mitsubishi Heavy Ind Ltd | Rolling mill |
| CN2389024Y (en) * | 1999-09-13 | 2000-07-26 | 太原重型机械(集团)有限公司 | Oil film bearing capable of monitoring and controlling operation temperature |
| CN2427285Y (en) * | 2000-04-28 | 2001-04-25 | 太原重型机械(集团)有限公司 | Filmatic bearing with quick locking device |
| EP1213061B1 (en) * | 2000-12-08 | 2006-04-12 | Morgan Construction Company | Sleeve for rolling mill oil film bearing |
| CN201470685U (en) * | 2009-08-29 | 2010-05-19 | 薛建刚 | Device for sealing high-speed wire rolling mill shaft head part through filling air or oil gas |
| 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 |
| CN203221066U (en) * | 2013-05-20 | 2013-10-02 | 浙江朋诚科技有限公司 | High-speed rolling mill roller shaft structure |
-
2013
- 2013-05-20 CN CN2013101880127A patent/CN103316922A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5478090A (en) * | 1993-06-16 | 1995-12-26 | Morgan Construction Company | Interlocked seal and sleeve for rolling mill oil film bearing |
| JPH1110209A (en) * | 1997-06-25 | 1999-01-19 | Mitsubishi Heavy Ind Ltd | Rolling mill |
| CN2389024Y (en) * | 1999-09-13 | 2000-07-26 | 太原重型机械(集团)有限公司 | Oil film bearing capable of monitoring and controlling operation temperature |
| CN2427285Y (en) * | 2000-04-28 | 2001-04-25 | 太原重型机械(集团)有限公司 | Filmatic bearing with quick locking device |
| EP1213061B1 (en) * | 2000-12-08 | 2006-04-12 | Morgan Construction Company | Sleeve for rolling mill oil film bearing |
| CN201470685U (en) * | 2009-08-29 | 2010-05-19 | 薛建刚 | Device for sealing high-speed wire rolling mill shaft head part through filling air or oil gas |
| 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 |
| CN203221066U (en) * | 2013-05-20 | 2013-10-02 | 浙江朋诚科技有限公司 | High-speed rolling mill roller shaft structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130925 |