CN203253727U - Roller box structure of high-speed mill - Google Patents
Roller box structure of high-speed mill Download PDFInfo
- Publication number
- CN203253727U CN203253727U CN 201320277955 CN201320277955U CN203253727U CN 203253727 U CN203253727 U CN 203253727U CN 201320277955 CN201320277955 CN 201320277955 CN 201320277955 U CN201320277955 U CN 201320277955U CN 203253727 U CN203253727 U CN 203253727U
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- CN
- China
- Prior art keywords
- roll shaft
- roller box
- box structure
- structure according
- bulge loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model discloses a roller box structure of a high-speed mill. Oil film bearings arranged are among the front end and the rear end of a roll shaft, a roller box panel and a roller box body, and a taper transition structure is designed at a matching position of the front end of the roll shaft and the oil film bearings. According to the roller box structure, a taper of 4' is designed at the matching position of the front end of the roll shaft and the oil film bearings, when the roller box structure deforms when being subjected to a rolling torsion in a use process, the roll shaft and the oil film bearings form a straight line on an opposite surface, the thickness of each oil film is 0.3mm, at this moment, the oil film is capable of bearing the highest impact pressure of reaching above 300KN, the problem of deformation of the roll shaft in a deformation rolling process is solved, the influence of deformation to the roll shaft and the bearings is controlled, and the phenomenon of burning the shaft and the bearings in a high-speed process of rolling a wire can not be caused.
Description
Technical field
The utility model relates to fast mill roller case.
Background technology
In the high-speed wire rolling process because larger 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 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.
The utility model content
Technical problem to be solved in the utility model just provides a kind of fast mill roller box 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 utility model 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 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 is bulge loop before tapering transition structure the place ahead is circumferentially with along roll shaft, described front bulge loop the place ahead is provided with the axial cone head, be provided with annular groove between described front bulge loop and axial cone head and the tapering transition structure, described roll shaft is provided with double-lip seal and outer ring oiler, interior ring oiler in front bulge loop and annular groove outer circumferential sides.
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 bulge loop after filmatic bearing the place ahead is circumferentially with along roll shaft, is provided with eccentric bushing between described rear 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 utility model 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
Below in conjunction with the drawings and specific embodiments the utility model 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 of described roll shaft 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 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, 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 and the tapering transition structure, 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 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 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 utility model 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 of described roll shaft front end and filmatic bearing is designed with 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 bulge loop before tapering transition structure the place ahead is circumferentially with along roll shaft, described front bulge loop the place ahead is provided with the axial cone head, be provided with annular groove between described front bulge loop and axial cone head and the tapering transition structure, described roll shaft is provided with double-lip seal and outer ring oiler, interior ring oiler in front bulge loop and annular groove outer circumferential sides.
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, it is characterized in that: described roll shaft rear end is bulge loop after filmatic bearing the place ahead is circumferentially with along roll shaft, is provided with eccentric bushing between described rear 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 |
|---|---|---|---|
| CN 201320277955 CN203253727U (en) | 2013-05-20 | 2013-05-20 | Roller box structure of high-speed mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320277955 CN203253727U (en) | 2013-05-20 | 2013-05-20 | Roller box structure of high-speed mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203253727U true CN203253727U (en) | 2013-10-30 |
Family
ID=49466336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320277955 Expired - Lifetime CN203253727U (en) | 2013-05-20 | 2013-05-20 | Roller box structure of high-speed mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203253727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272850A (en) * | 2013-05-20 | 2013-09-04 | 浙江朋诚科技有限公司 | High-speed mill roller box structure |
| WO2016058235A1 (en) * | 2014-10-14 | 2016-04-21 | 江苏甬金金属科技有限公司 | Roll box structure of twenty-roller rolling mill |
-
2013
- 2013-05-20 CN CN 201320277955 patent/CN203253727U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272850A (en) * | 2013-05-20 | 2013-09-04 | 浙江朋诚科技有限公司 | High-speed mill roller box structure |
| WO2016058235A1 (en) * | 2014-10-14 | 2016-04-21 | 江苏甬金金属科技有限公司 | Roll box structure of twenty-roller rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |