CN102151701A - Hydraulic depressing device of wedge of rolling mill - Google Patents
Hydraulic depressing device of wedge of rolling mill Download PDFInfo
- Publication number
- CN102151701A CN102151701A CN 201110126569 CN201110126569A CN102151701A CN 102151701 A CN102151701 A CN 102151701A CN 201110126569 CN201110126569 CN 201110126569 CN 201110126569 A CN201110126569 A CN 201110126569A CN 102151701 A CN102151701 A CN 102151701A
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- wedge
- bearing seat
- upper support
- roll bearing
- tapered wedges
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Abstract
The invention discloses a hydraulic depressing device of a wedge of a rolling mill, belonging to the field of metal pressure machining techniques. The depressing device is arranged in a frame of the rolling mill and connected with an upper backup roll bearing pedestal of the rolling mill; and the depressing device comprises a depressing hydraulic cylinder which is fixed on the frame, wherein the depressing hydraulic cylinder is connected with a compaction wedge which is downward to be spliced with the upper backup roll bearing pedestal and forms self-locking with the upper backup roll bearing pedestal. The hydraulic depressing device of the wedge of the rolling mill can realize the combination of hydraulic pressure and the wedge through connecting the depressing hydraulic cylinder with the compaction wedge and connecting the compaction wedge with the upper backup roll bearing pedestal in self-locking manner so that the depressing device has the advantages of being rapid in hydraulic depressing reaction and high in wedge adjustment precision and having self-locking function and the rigidity and the rolling precision of the rolling mill are improved.
Description
Technical field
The present invention relates to a kind of milling train screwdown gear, particularly a kind of milling train wedge holding-down device of hydraulic belongs to the stress metal processing technique field.
Background technology
The milling train screwdown gear also is roll adjusting device, is mainly used in the adjustment roll gap, to guarantee that rolled piece shuts out desired cross dimensions by given drafts.It is manual, electronic, hydraulic pressure that screwdown gear has.Hand screwdown gear is simple because of it, reaction is slow, precision is low, be used for shape rolling mill more, common hand screwdown gear has following several: (1) wedge is adjusted mode, (2) directly rotate the adjustment mode of housing screw, (3) the adjustment mode of column gear transmission housing screw, the adjustment mode of (4) worm and gear transmission housing screw.
Electric screw down gear is the top roll adjusting device of normal use, generally include: parts such as motor, reductor, brake, housing screw, screw box, depressing position indicator, sphere cushion block and measuring cell, depress reaction speed greatly faster than manually because of it, therefore mostly adopt for the high slightly milling train of required precision.
Holding-down device of hydraulic is promptly controlled depress oil cylinder with servo valve, adjusts roll gap in the operation of rolling rapidly, to eliminate the thick poor of rolled piece, because of its reaction is fast, is widely used on the high precision plates hoop mill.Hydraulic pressure is depressed the spare part accuracy of manufacture of having relatively high expectations, high plant maintenance level and reliable automated system.
Depress mode, all have following shortcoming for above-mentioned three kinds:
(1) depress power and rely on housiung separator to be the basis, be delivered on the roll chock topmost by screwdown gear, these parts are elastomer, thereby make the distortion of whole support very big, integral rigidity reduces, along with the fluctuation of roll-force, roll gap changes greatly, and the precision of rolled piece is reduced.
(2) roll roller system, press down system and machine frame system are to link together by roll-force (depressing power), formed the elastomer of a plurality of frees degree, the fluctuation because of technological parameter causes vibration easily, even resonance, not only reduce the rolled piece precision, and increase equipment breakdown.
(3) in the operation of rolling, because of the effect of roll-force, the power of depressing can't be cancelled; Hydraulic press down system, long-term under the effect of hydraulic oil, control element, hydraulic seal etc. predisposes to damage, and has reduced service life.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of milling train wedge holding-down device of hydraulic, and this device can effectively improve the rolling accuracy and the rigidity of milling train.
For solving the problems of the technologies described above, the present invention takes following technical scheme:
Milling train wedge holding-down device of hydraulic provided by the invention, be installed in the frame of described milling train, and be connected with the upper support roll bearing seat of milling train, comprise the hydraulic cylinder for reduction system that is fixed on the frame, this hydraulic cylinder for reduction system downwards with compress tapered wedges and be connected, this dog wedge skewback is pegged graft with described upper support roll bearing seat downwards, and forms self-locking with the upper support roll bearing seat.
A kind of preferred implementation according to above-mentioned milling train wedge holding-down device of hydraulic, wherein, described hydraulic cylinder for reduction system is set to two of each supporting roller bearing seats, is oppositely disposed in both sides, described upper support roll bearing seat top, and each hydraulic cylinder for reduction system and compresses tapered wedges and fixedlys connected.
Wherein, the described tapered wedges that compresses is made up of connecting portion and wedge-shaped part, and this connecting portion is connected with the described hydraulic cylinder that compresses; Described upper support roll bearing seat and the described tapered wedges opposite position that compresses are provided with and the suitable wedge-shaped slot of described wedge-shaped part; Described when compressing the tapered wedges wedge-shaped part and inserting upper support roll bearing seat wedge-shaped slot, compress tapered wedges and upper support roll bearing seat formation self-locking.
A kind of preferred implementation according to above-mentioned milling train wedge holding-down device of hydraulic, wherein, described hydraulic cylinder for reduction system is set to one of each supporting roller bearing seat, be arranged in described upper support roll bearing seat top center, this hydraulic cylinder for reduction system is downwards depressed crossbeam and is connected with one, and this is depressed the crossbeam both sides and is fixedly connected with respectively downwards and compresses tapered wedges.
Wherein, the described tapered wedges that compresses is made up of connecting portion and wedge-shaped part, and this connecting portion is connected with the described crossbeam of depressing; Described upper support roll bearing seat and the described tapered wedges opposite position that compresses are provided with and the suitable wedge-shaped slot of described wedge-shaped part; Described when compressing the tapered wedges wedge-shaped part and inserting upper support roll bearing seat wedge-shaped slot, compress tapered wedges and upper support roll bearing seat formation self-locking.
Further, the described inclination angle of inclined plane that compresses the tapered wedges wedge-shaped part is less than or equal to angle of friction.
Milling train wedge holding-down device of hydraulic provided by the invention, by hydraulic cylinder for reduction system being set and compressing tapered wedges and be connected, and will compress tapered wedges and be designed to self-locking with the upper support roll bearing seat and be connected, thereby realize hydraulic pressure and wedge are combined, make the existing hydraulic pressure of screwdown gear depress swift advantage, there is wedge to adjust the characteristics of precision height and band auto-lock function again, improved the rigidity and the rolling accuracy of milling train.
When compressing tapered wedges insertion upper support roll bearing seat, frame, compress tapered wedges and become as a whole because of self-locking with the upper support roll bearing seat, thereby make the present invention have following characteristics: (1) is in the operation of rolling, the above parts of upper support roller comprise that press down system, housiung separator etc. do not bear roll-force, thereby reduced the distortion of 10-15%, improved support rigidity; (2) by compressing tapered wedges, the stress of frame is changed, the oriented trend that extends out of framework window has avoided the regular situation framework window inwardly to shrink, and causes each intermediate calender rolls bearing block pressurized of working roll to be difficult to the generation of problem such as axially twitch; (3) line of tension of the operation of rolling shortens, and the vertical deformation of frame reduces, and has improved the longitudinal rigidity of support, realizes permanent roll gap control, improves rolling accuracy; (4) because the upper support roll bearing seat becomes as a whole with frame, the variation of its Natural Frequency of Vibration, the vibration that has alleviated support has greatly improved the dimensional accuracy of rolled piece, has reduced the accident rate of equipment.
Description of drawings
In order to be illustrated more clearly in patent working example of the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiment of patent of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of milling train wedge holding-down device of hydraulic one embodiment of the present invention;
Fig. 2 is the front view that compresses tapered wedges of milling train wedge holding-down device of hydraulic of the present invention;
Fig. 3 is the side view that compresses tapered wedges shown in Figure 2;
Fig. 4 is the vertical view that compresses tapered wedges shown in Figure 2;
Fig. 5 is the front view of the upper support roll bearing seat of milling train wedge holding-down device of hydraulic of the present invention;
Fig. 6 is the side view of upper support roll bearing seat shown in Figure 5;
Fig. 7 is the vertical view of upper support roll bearing seat shown in Figure 5;
Fig. 8 is the schematic diagram of another embodiment of milling train wedge holding-down device of hydraulic of the present invention;
Fig. 9 is a front view of depressing crossbeam embodiment illustrated in fig. 8;
Figure 10 is a side view of depressing crossbeam shown in Figure 9.
The specific embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, the embodiment of milling train wedge holding-down device of hydraulic provided by the invention, this screwdown gear is installed in the frame 10 of described milling train, and be connected with the upper support roll bearing seat 60 of milling train, comprise the hydraulic cylinder for reduction system 20 that is fixed on the frame 10, for each upper support roll bearing seat 60 is provided with two hydraulic cylinder for reduction system 20, these two hydraulic cylinder for reduction system 20 are oppositely disposed in both sides, described upper support roll bearing seat 60 top, and each hydraulic cylinder for reduction system 20 and one compresses tapered wedges 50 and fixedlys connected; This compresses tapered wedges 50 and pegs graft with described upper support roll bearing seat 60 downwards, and forms self-locking with upper support roll bearing seat 60.
Shown in Fig. 2,3,4, the described tapered wedges 50 that compresses is made up of connecting portion 51 and wedge-shaped part 52, and this connecting portion 51 is upwards fixedlyed connected with the described hydraulic cylinder 20 that compresses, and the inclined-plane of this wedge-shaped part 52 can be set to many inclined-planes, can be two inclined-planes in the present embodiment; Shown in Fig. 5,6,7, described upper support roll bearing seat 60 and described tapered wedges 50 opposite positions that compress are provided with the wedge-shaped slot 62 suitable with described wedge-shaped part 52; The described inclination angle of inclined plane that compresses tapered wedges 50 wedge-shaped parts 52 is according to the coefficient of friction design of making wedge-shaped part 52 and wedge-shaped slot 62 materials, and inclination angle of inclined plane is less than or equal to angle of friction; Described when compressing tapered wedges 50 wedge-shaped parts 52 and inserting upper support roll bearing seat 60 wedge-shaped slots 62, compress tapered wedges 50 and form self-lockings with upper support roll bearing seat 60.
In the present embodiment, two hydraulic cylinder for reduction system 20 are set, each hydraulic cylinder for reduction system 20 drives one and compresses tapered wedges 50; When depressing, hydraulic cylinder for reduction system 20 promotes to compress tapered wedges 50 and moves down, compress tapered wedges 50 and depress upper support roll bearing seat 60 by the inclined-plane, after finishing the task of depressing, upper support roll bearing seat 60, compress tapered wedges 50 and form self-lockings with frame 10, form an integral body, thereby controlled moving up of upper support roll bearing seat 60, this moment, the pressure of hydraulic cylinder for reduction system 20 can be " 0 "; In the operation of rolling, the upper support roller can not promote along with the variation of roll-force and vibrate; When lifting the upper support roller, hydraulic cylinder for reduction system 20 is drawn back and is compressed tapered wedges 50 and move up, and the balance sysmte of upper support roll bearing seat 60 is lifted upper support roller and upper support roll bearing seat 60.
As shown in Figure 8, another embodiment of milling train wedge holding-down device of hydraulic provided by the invention, this screwdown gear is installed in the frame 10 of described milling train, and be connected with the upper support roll bearing seat 60 of milling train, it comprises the hydraulic cylinder for reduction system 30 that is fixed on the frame 10, each upper support roll bearing seat 60 is provided with a hydraulic cylinder for reduction system 30, this hydraulic cylinder for reduction system 30 is arranged in described upper support roll bearing seat 60 top center, this hydraulic cylinder for reduction system 30 is depressed crossbeam 40 and is connected with one downwards, as Fig. 9, shown in 10, this is depressed crossbeam 40 both sides and is fixedly connected with respectively downwards and compresses tapered wedges 50; The described tapered wedges 50 that compresses is pegged graft with described upper support roll bearing seat 60 downwards, and forms self-locking with upper support roll bearing seat 60.
Shown in Fig. 2,3,4, the described tapered wedges 50 that compresses is made up of connecting portion 51 and wedge-shaped part 52, and this connecting portion 51 is connected with the described crossbeam 40 of depressing, and the inclined-plane of this wedge-shaped part 52 can be set to many inclined-planes, can be two inclined-planes in the present embodiment; Shown in Fig. 5,6,7, described upper support roll bearing seat 60 and described tapered wedges 50 opposite positions that compress are provided with the wedge-shaped slot 62 suitable with described wedge-shaped part 52; The described coefficient of friction design that compresses the inclination angle of inclined plane of tapered wedges 50 wedge-shaped parts 52 according to wedge-shaped part 52 and wedge-shaped slot 62 manufactured materials, inclination angle of inclined plane is less than or equal to angle of friction; Described when compressing tapered wedges 50 wedge-shaped parts 52 and inserting upper support roll bearing seat 60 wedge-shaped slots 62, compress tapered wedges 50 and form self-lockings with upper support roll bearing seat 60.
In the present embodiment, each upper support roll bearing seat 60 is provided with a hydraulic cylinder for reduction system 30 and depresses crossbeam 40 and be connected, and drives two downwards simultaneously and compresses tapered wedges 50 by depressing crossbeam 40; When depressing, hydraulic cylinder for reduction system 30 is depressed crossbeam 40, depresses crossbeam 40 and promotes to compress tapered wedges 50 and move down, and compresses tapered wedges 50 and depresses upper support roll bearing seat 60 by the inclined-plane; After finishing the task of depressing, upper support roll bearing seat 60, compress tapered wedges 50 and form self-lockings with frame 10, forms an integral body, thereby controlled moving up of upper support roll bearing seat 60, the pressure of hydraulic cylinder for reduction system 30 can be " 0 " at this moment; In the operation of rolling, the upper support roller can not promote along with the variation of roll-force and vibrate; When lifting the upper support roller, hydraulic cylinder for reduction system 30 is drawn back, and compresses tapered wedges 50 and moves up, and the balance sysmte of upper support roll bearing seat 60 is lifted upper support roller and upper support roll bearing seat 60.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (6)
1. milling train wedge holding-down device of hydraulic, be installed in the frame of described milling train, and be connected with the upper support roll bearing seat of milling train, it is characterized in that, comprise the hydraulic cylinder for reduction system that is fixed on the frame, this hydraulic cylinder for reduction system downwards with compress tapered wedges and be connected, this dog wedge skewback downwards with described upper support roll bearing seat grafting, and with upper support roll bearing seat formation self-locking.
2. milling train wedge holding-down device of hydraulic according to claim 1, it is characterized in that, described hydraulic cylinder for reduction system is set to two of each supporting roller bearing seats, is oppositely disposed in both sides, described upper support roll bearing seat top, and each hydraulic cylinder for reduction system and compresses tapered wedges and fixedlys connected.
3. milling train wedge holding-down device of hydraulic according to claim 2 is characterized in that, the described tapered wedges that compresses is made up of connecting portion and wedge-shaped part, and this connecting portion is connected with the described hydraulic cylinder that compresses; Described upper support roll bearing seat and the described tapered wedges opposite position that compresses are provided with and the suitable wedge-shaped slot of described wedge-shaped part; Described when compressing the tapered wedges wedge-shaped part and inserting upper support roll bearing seat wedge-shaped slot, compress tapered wedges and upper support roll bearing seat formation self-locking.
4. milling train wedge holding-down device of hydraulic according to claim 1, it is characterized in that, described hydraulic cylinder for reduction system is set to one of each supporting roller bearing seat, be arranged in described upper support roll bearing seat top center, this hydraulic cylinder for reduction system is downwards depressed crossbeam and is connected with one, and this is depressed the crossbeam both sides and is fixedly connected with respectively downwards and compresses tapered wedges.
5. milling train wedge holding-down device of hydraulic according to claim 4 is characterized in that, the described tapered wedges that compresses is made up of connecting portion and wedge-shaped part, and this connecting portion is connected with the described crossbeam of depressing; Described upper support roll bearing seat and the described tapered wedges opposite position that compresses are provided with and the suitable wedge-shaped slot of described wedge-shaped part; Described when compressing the tapered wedges wedge-shaped part and inserting upper support roll bearing seat wedge-shaped slot, compress tapered wedges and upper support roll bearing seat formation self-locking.
6. according to claim 3 or 5 described milling train wedge holding-down device of hydraulic, it is characterized in that the described inclination angle of inclined plane that compresses the tapered wedges wedge-shaped part is less than or equal to angle of friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101265699A CN102151701B (en) | 2011-05-16 | 2011-05-16 | Hydraulic depressing device of wedge of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101265699A CN102151701B (en) | 2011-05-16 | 2011-05-16 | Hydraulic depressing device of wedge of rolling mill |
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| Publication Number | Publication Date |
|---|---|
| CN102151701A true CN102151701A (en) | 2011-08-17 |
| CN102151701B CN102151701B (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101265699A Active CN102151701B (en) | 2011-05-16 | 2011-05-16 | Hydraulic depressing device of wedge of rolling mill |
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| CN (1) | CN102151701B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436205A (en) * | 2014-09-30 | 2016-03-30 | 宝山钢铁股份有限公司 | Vibration alarming and restraining method and device for rolling mill |
| CN105436207A (en) * | 2015-11-24 | 2016-03-30 | 上海力炯金属科技有限公司 | Direct drive inner-cooling rolling mill |
| CN107542726A (en) * | 2016-06-29 | 2018-01-05 | 宝山钢铁股份有限公司 | Simulate the servo-cylinder performance testing equipment of actual condition |
| CN110328242A (en) * | 2019-08-06 | 2019-10-15 | 河北银隆新能源有限公司 | Regulating device and roll gap adjustment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5460259A (en) * | 1977-10-21 | 1979-05-15 | Kawasaki Steel Corp | Rolling mill device for clearance adjustment between roll housing and choke and removal thereof |
| EP0352329A1 (en) * | 1988-01-21 | 1990-01-31 | Vsesojuzny Zaochny Politekhnichesky Institut | Working stand of rolling mill |
| JPH091215A (en) * | 1995-06-19 | 1997-01-07 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
| JPH10175006A (en) * | 1996-12-13 | 1998-06-30 | Ishikawajima Harima Heavy Ind Co Ltd | Roll crossing mechanism of rolling mill |
| CN201702164U (en) * | 2010-07-10 | 2011-01-12 | 宜昌三峡全通涂镀板股份有限公司 | Hydraulic regular eight-roll cold continuous rolling mill |
-
2011
- 2011-05-16 CN CN2011101265699A patent/CN102151701B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5460259A (en) * | 1977-10-21 | 1979-05-15 | Kawasaki Steel Corp | Rolling mill device for clearance adjustment between roll housing and choke and removal thereof |
| EP0352329A1 (en) * | 1988-01-21 | 1990-01-31 | Vsesojuzny Zaochny Politekhnichesky Institut | Working stand of rolling mill |
| JPH091215A (en) * | 1995-06-19 | 1997-01-07 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling mill |
| JPH10175006A (en) * | 1996-12-13 | 1998-06-30 | Ishikawajima Harima Heavy Ind Co Ltd | Roll crossing mechanism of rolling mill |
| CN201702164U (en) * | 2010-07-10 | 2011-01-12 | 宜昌三峡全通涂镀板股份有限公司 | Hydraulic regular eight-roll cold continuous rolling mill |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436205A (en) * | 2014-09-30 | 2016-03-30 | 宝山钢铁股份有限公司 | Vibration alarming and restraining method and device for rolling mill |
| CN105436205B (en) * | 2014-09-30 | 2018-06-01 | 宝山钢铁股份有限公司 | Rolling mill vibration is alarmed and suppressing method |
| CN105436207A (en) * | 2015-11-24 | 2016-03-30 | 上海力炯金属科技有限公司 | Direct drive inner-cooling rolling mill |
| CN105436207B (en) * | 2015-11-24 | 2018-07-20 | 上海力炯金属科技有限公司 | A kind of straight drive inner-cooled milling train |
| CN107542726A (en) * | 2016-06-29 | 2018-01-05 | 宝山钢铁股份有限公司 | Simulate the servo-cylinder performance testing equipment of actual condition |
| CN107542726B (en) * | 2016-06-29 | 2019-06-25 | 宝山钢铁股份有限公司 | Simulate the servo-cylinder performance testing equipment of actual condition |
| CN110328242A (en) * | 2019-08-06 | 2019-10-15 | 河北银隆新能源有限公司 | Regulating device and roll gap adjustment method |
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| Publication number | Publication date |
|---|---|
| CN102151701B (en) | 2012-11-14 |
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