CN102688891A - Static-pressure suspension beam barrel device - Google Patents
Static-pressure suspension beam barrel device Download PDFInfo
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- CN102688891A CN102688891A CN201210170069XA CN201210170069A CN102688891A CN 102688891 A CN102688891 A CN 102688891A CN 201210170069X A CN201210170069X A CN 201210170069XA CN 201210170069 A CN201210170069 A CN 201210170069A CN 102688891 A CN102688891 A CN 102688891A
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- beaming roller
- seat
- beam barrel
- beaming
- roller
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Abstract
The invention relates to the technical field of metallurgy, and provides a static-pressure suspension beam barrel device which comprises a beam barrel, a beam barrel seat and a beam. The beam barrel is rotatably arranged on the beam barrel seat and is wrapped by the beam barrel seat, a working face of the beam barrel is exposed on the outside of the beam barrel seat, the beam barrel seat and the beam barrel form a sealed inner cavity by the aid of a sealing component, the beam barrel seat is disposed on the beam, the sealed inner cavity is connected with a high-pressure source, and the high-pressure source provides high pressure resisting radial force generated when the beam barrel works. Stress of the beam barrel is offset by static pressure, the stress condition of the beam barrel is greatly improved, the service life of the beam barrel is prolonged, requirements on materials of a supporting roll are reduced, and manufacturing cost of a rolling mill is greatly lowered.
Description
Technical field
The invention belongs to metallurgical technology field, particularly a kind of static pressure levitation axis roller arrangement that is used for metallic rolled.
Background technology
At metallurgy industry; The general roller mill that adopts four roll structures of moulding in the Wide and Thick Slab hot rolling unit; Its structure is by two working rolls and two four roller mechanisms that backing roll is formed, and the two ends of each beaming roller are installed in respectively in two rolling bearings, and bearing is installed in respectively in the frame at two ends.It during work the steel plate that is rolled; The another side of roll is linear with backing roll and contacts; Bear the radial load that working roll bears by backing roll, the bending stress that when backing roll rotates, is caused in backing roll by radial load is to the most disadvantageous alternation type of strength of materials dynamic loading.Therefore; On the one hand in order to have enough rigidity to guarantee to be rolled the planarization of steel plate; Simultaneously, for fatigue resistance that improves backing roll and the anti-attrition amount that increases working roll, straight all can do very big and also very high of backing roll and working roll to the quality requirement of its material.The diameter of its backing roll can reach more than 2 meters for 3.5 meters milling trains, and the diameter of working roll also has about 1 meter, and only the weight of moulding section just reaches 300 tons more than.Because the roll-force during work causes the shaft strength at two ends very big very greatly, the mechanical efficiency loss of bearing is that 92%-95% has caused very big energy waste.And to shut down replacing often, cause operating cost very high.In addition, in order to guarantee the working roll calorific intensity in when work, adopt open water-cooled method; Though roller surface has received cooling but has also accelerated the cooling of workpiece like this; Cause the increase of roll-force, also just increased the mechanical loss of profiled part, also wasted mass energy consumption simultaneously.
Therefore, there is above problem in rolling equipment of the prior art:
1, structure is huge, is example with regard to 3.5 meters 4 roller hot-rolling mills, and the weight of its moulding section just reaches 320 tons, owing to the stressed complicacy of beaming roller, is the dynamic loading of alternation, and then very high to the material requirement of beaming roller, the two causes the cost of equipment very high;
2, the bearing at beaming roller two ends is that special rolling mill is used bearing, and working roll is big and complicated owing to load, and mechanical wear is very big, often needs to shut down to change, and causes the operating cost height and influences economic benefit;
3, the bearing transmission efficiency at beaming roller two ends does; 0.92-0.95 the energy consumption that for the high-power transmission of the 4000KW of hot rolling unit, causes owing to the friction of rolling bearing reaches 200-250kw.Power wastage is serious.Open water-cooled but causes water consumption very big, further causes the mechanical wear of equipment and the waste of the energy simultaneously.
Summary of the invention
To the objective of the invention is in order solving the problems of the technologies described above, static pressure levitation axis roller arrangement to be provided,, prolong service life of equipment, reduce equipment energy consumption in the hope of realizing reducing weight of equipment.
The technical scheme that the present invention takes is:
A kind of static pressure levitation axis roller arrangement comprises beaming roller and beaming roller seat, and said beaming roller is rotatable to be arranged on the said beaming roller seat; It is characterized in that; Said beaming roller seat coats said beaming roller, and the working face of said beaming roller is exposed to the outside of said beaming roller seat, and said beaming roller seat and said beaming roller form a closed cavity through black box; Said static pressure levitation axis roller arrangement also comprises the beam body; Said beaming roller seat is arranged on the said beam body, and said airtight inner chamber connects a high-voltage power supply, and said high-voltage power supply provides high pressure to resist the radial load that produces when said beaming roller is worked.
Further, said airtight inner chamber is connected with said high-voltage power supply through Steel Tube Special, and said Steel Tube Special has a plurality of ducts to communicate with said airtight inner chamber, and said high-voltage power supply is the controlled high-pressure hydraulic pump of pressure flow.
Further, between said beaming roller seat and said beaming roller, bearing shell is set, on said bearing shell, offers a plurality of through holes, said through hole connects the both sides cavity of said bearing shell, and the position of a plurality of through holes on a plurality of ducts on the said airtight inner chamber and the said bearing shell is corresponding.
Further, said bearing shell covers the part less than beaming roller 1/3rd on said beaming roller shaft section.
Further, said beaming roller seat and said beam body are one.
Further, said beaming roller seat covers the part of said beaming roller 1/3rd to 2/3rds.
Further; Said black box comprises sealing skeleton and the seal that the beaming roller both ends are provided with; Said seal seals the connecting portion of said beaming roller seat and beaming roller and the connecting portion of sealing skeleton and said beaming roller; Said seal is the monoblock setting, and the centre offers the opening that exposes said beaming roller working face, has the dedusting bead on the contact-making surface of said opening and said beaming roller axial.
Further, said seal is positioned at the inner end of said beaming roller seat and has dovetail groove along said beaming roller axis direction.
The invention has the beneficial effects as follows:
1, because beaming roller is mounted in the beaming roller seat, the contact stress on beaming roller surface is the face contact, and very evenly, has only the 2%-8% of prior art, has therefore overcome prior art bottom bracket axle serious wear, the problem that service life is short;
2, making beaming roller produce static pressure through water under high pressure suspends; Produce liquid film between beaming roller surface and the bearing shell, contact force between the two can go to zero under the effect of fluid pressure, therefore; Its frictional dissipation is the 5%-20% of rolling bearing of the prior art, and energy-saving effect very significantly;
3, the highly pressurised liquid in the annular seal space has also played the effect of cooling to the surface of beaming roller, has overcome the open cooling of the prior art serious problem of wasting water;
4, beaming roller is installed in the groove of beam body at beaming roller seat inward turning then beaming roller seat; The beam body does not rotate during work; Therefore save very expensive rolling bearing, reduced the operating cost of equipment, improved the force environment that receives of beam body simultaneously; Reduce the material requirement of beam body, significantly reduced the manufacturing cost of equipment.
Description of drawings
Accompanying drawing 1 is the structural representation of broken section of the present invention;
Accompanying drawing 2 is the A-A cutaway views in the accompanying drawing 1;
Accompanying drawing 3 is seal planar structure sketch mapes among the present invention;
Accompanying drawing 4 is B-B cutaway views in the accompanying drawing 3;
Accompanying drawing 5 is structural representations of the dovetail groove of seal;
Accompanying drawing 6 is mounting structure sketch mapes of mesohigh steel pipe of the present invention;
Accompanying drawing 7 is C-C cutaway views in the accompanying drawing 6;
Accompanying drawing 8 is partial enlarged drawings of the D in the accompanying drawing 6.
Being labeled as in the accompanying drawing:
1. beaming roller; 11. working face;
2. beaming roller seat; 21. closed inner chamber;
22. sealing skeleton; 23. seal;
231. bead; 232. dovetail groove;
3. beam body; 4. shaft coupling;
41. axle sleeve; 42. end cap;
5. Steel Tube Special; 51. interface channel;
52. plug; 6. bearing shell;
61. through hole.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to static pressure levitation axis roller arrangement of the present invention.
Referring to accompanying drawing 1,2; Static pressure levitation axis roller arrangement comprises beaming roller 1 and beaming roller seat 2; Beaming roller 1 is arranged on the beaming roller seat 2 through sliding bearing; Beaming roller seat 2 envelopes beaming roller 1 on beaming roller 1 and axial direction, the working face 11 of beaming roller 1 is exposed to the outside of beaming roller seat 2, and beaming roller seat 2 forms a closed inner chamber 21 with the two ends of beaming roller 1 main body and beaming roller 1; Beaming roller seat 2 surrounds beaming roller 1 with the two ends of beaming roller 1 through sealing skeleton 22, and closed inner chamber 21 will seal (referring to accompanying drawing 3,4) with the external world through seal 23.This static pressure levitation axis roller arrangement also comprises a beam body 3, and beaming roller seat 2 is fixedly installed on the beam body 3 through securing member, on airtight inner chamber 21, connects a high-voltage power supply through Steel Tube Special 5; High-voltage power supply provides highly pressurised liquid (using water under high pressure usually); The power that highly pressurised liquid produces radially beaming roller 1, when beaming roller 2 work, the opposite radial load that produces during this radial load antagonism beaming roller 1 work; Two power offset, and the radial load when making beaming roller 1 work reduces greatly and even goes to zero.High pressure is the face contact stress to the surface stress that beaming roller 1 produces, and less than the line contact stress of prior art, the frictional force between the sliding bearing in beaming roller 1 and the beaming roller seat 2 also significantly reduces simultaneously, thereby reaches purpose of energy saving out and away for it.The part that beaming roller seat 2 coats beaming roller 1 accounts for 1/3rd to 2/3rds on the cross section of beaming roller 1, big area coverage is used to install seal 23, makes the sealing property under the high pressure better.
Continuation in beaming roller seat 2, is installed a bearing shell 6 referring to accompanying drawing 1,2, and bearing shell 6 encases the area below 1/3rd of beaming roller 1, and bearing shell 6 reduces the rotary resistance of beaming roller 1, offers a plurality of through holes 61 on the bearing shell 6, and through hole 61 is distributed on the surface of bearing shell 6.The inner surface of bearing shell 6 and beaming roller 1 form a clearance space, and a plurality of through holes 61 can let water under high pressure put on equably on the surface of beaming roller 1.
Referring to accompanying drawing 1,6,7,8; Steel Tube Special 5 can be provided with a plurality of with the interface channel 51 of the close inner chamber 21 of envelope; To reach the power that high-pressure hydraulic is uniformly applied to beaming roller 1 surface; Using under the situation of bearing shell 6, the interface channel 51 of Steel Tube Special 5 can be arranged to bearing shell 6 on the position of through hole 61 corresponding, reduce the pressure waste of water under high pressure.Steel Tube Special 5 is welded on the bottom of beaming roller seat 2, and an end of Steel Tube Special 5 is blocked with plug 52, and an end connects the high-pressure hydraulic pump (not shown), sealing between the interface channel 51 of Steel Tube Special 5 and the beaming roller seat 2.
Referring to accompanying drawing 3,4,5, seal 23 is the monoblock setting, can improve sealing property; At the interface position of beaming roller 1 with beaming roller seat 2, seal 23 all has extension at its two ends, and the breach of seal 23 exposes the working face of beaming roller 1; Beaming roller 1 axially on; Seal 23 has dedusting bead 231, and when beaming roller 1 rotated, bead 231 struck off the dust that beaming roller 1 is stained with.All there is dovetail groove 232 inboard of seal 23, and dovetail groove 232 acts in the groove water under high pressure, both sides sealing partly is pressed on the inwall of beaming roller seat, plays better sealing function.
Referring to accompanying drawing 1, the two ends of beaming roller seat 2 connect shaft coupling 4, and shaft coupling 4 comprises axle sleeve 41 and end cap 42, rotate in beaming roller seat 2 when an end of beaming roller 1 connects rear axletree 1 with rotary power through shaft coupling 4 through spline housing, carry out rolling work.
The course of work of the present invention is, install the beaming roller device by accompanying drawing 1 after, regulate the spacing between beaming roller; Start high-pressure hydraulic pump, make between beaming roller seat 2 and the beaming roller 1 and produce static pressure, transmit power to beaming roller 1 through shaft coupling; With treating that rolling steel plate puts between the beaming roller 1, regulate hydraulic pressure simultaneously, the radial load of rolling generation and power that water under high pressure produces are offseted; Because beam body 3 is fixing, when beaming roller 1 rotated in beaming roller 2, beaming roller 2 also only received very little power; Therefore, can beam body 3 and beaming roller seat 2 be processed one.In the process of rolled plate, the heat that steel plate produces conducts to beaming roller 1, and water under high pressure has been got the effect of cooling fluid simultaneously, and such cooling means is more remarkable than open water saving, has also avoided being rolled simultaneously the too fast situation of work-piece cools.Beaming roller seat 2 is fixed in the groove of beam body 3 through securing member; Bear the radial load that beaming roller 1 is born by beam body 3; Beam body 3 itself does not rotate during work, thus the direction of the suffered load of beam body 3 be remain unchanged can be considered dead load or the little impulse load of amplitude, so just improved the mechanical environment of beam body 3 greatly; Compare the material requirement that has reduced beam body 3 with the backing roll in the existing technology, its material grade that can descend.Owing to need not look like the work of backing roll rotation in the existing technology during 3 work of beam body, therefore also just save the very expensive rolling bearing in two ends.Also just do not have the rolling friction loss of bearing simultaneously, the two ends of beam body 3 can better simplyly be installed on the frame at two ends through suitable structural design.
Through an example shows good effect of the present invention, be example below with 3.5 meters 4-roller hot-rolling mills.Itself and the present invention have 4 roll assemblies of identical function and the gross weight of bearing is 320 tons, and as adopting the present invention, its weight has only the 130-135 ton, material savings 55%-60%.Significantly reduced the manufacturing cost of equipment.Also reduced the requirement of material in addition; The disposal environment that has improved beaming roller has prolonged service life, adopts the static pressure technology significantly to reduce the machine driving energy loss, and the loss that its friction causes is the 10%-20% of the energy loss of 3.5 meters hot rolling units; Simultaneously because without rolling bearing; Also just need not to change bearing, so the present invention significantly improves the production efficiency of milling train, significantly reduced the operating cost of equipment.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. static pressure levitation axis roller arrangement; Comprise beaming roller and beaming roller seat, said beaming roller is rotatable to be arranged on the said beaming roller seat, and it is characterized in that: said beaming roller seat coats said beaming roller; The working face of said beaming roller is exposed to the outside of said beaming roller seat; Said beaming roller seat and said beaming roller form a closed cavity through black box, and said static pressure levitation axis roller arrangement also comprises the beam body, and said beaming roller seat is arranged on the said beam body; Said airtight inner chamber connects a high-voltage power supply, and said high-voltage power supply provides high pressure to resist the radial load that produces when said beaming roller is worked.
2. static pressure levitation axis roller arrangement according to claim 1; It is characterized in that: said airtight inner chamber is connected with said high-voltage power supply through Steel Tube Special; Said Steel Tube Special has a plurality of ducts to communicate with said airtight inner chamber, and said high-voltage power supply is the controlled high-pressure hydraulic pump of pressure flow.
3. static pressure levitation axis roller arrangement according to claim 2; It is characterized in that: between said beaming roller seat and said beaming roller, bearing shell is set; On said bearing shell, offer a plurality of through holes; Said through hole connects the both sides cavity of said bearing shell, and the position of a plurality of through holes on a plurality of ducts on the said airtight inner chamber and the said bearing shell is corresponding.
4. static pressure levitation axis roller arrangement according to claim 3 is characterized in that: said bearing shell covers the part less than beaming roller 1/3rd on said beaming roller shaft section.
5. according to each described static pressure levitation axis roller arrangement in the claim 1 to 4, it is characterized in that: said beaming roller seat and said beam body are one.
6. according to each described static pressure levitation axis roller arrangement in the claim 1 to 4, it is characterized in that: said beaming roller seat covers the part of said beaming roller 1/3rd to 2/3rds.
7. according to each described static pressure levitation axis roller arrangement in the claim 1 to 4; It is characterized in that: said black box comprises sealing skeleton and the seal that the beaming roller both ends are provided with; Said seal seals the connecting portion of said beaming roller seat and beaming roller and the connecting portion of sealing skeleton and said beaming roller; Said seal is the monoblock setting, and the centre offers the opening that exposes said beaming roller working face, has the dedusting bead on the contact-making surface of said opening and said beaming roller axial.
8. static pressure levitation axis roller arrangement according to claim 7 is characterized in that: said seal is positioned at the inner end of said beaming roller seat and has dovetail groove along said beaming roller axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210170069XA CN102688891A (en) | 2012-05-29 | 2012-05-29 | Static-pressure suspension beam barrel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210170069XA CN102688891A (en) | 2012-05-29 | 2012-05-29 | Static-pressure suspension beam barrel device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102688891A true CN102688891A (en) | 2012-09-26 |
Family
ID=46854721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210170069XA Pending CN102688891A (en) | 2012-05-29 | 2012-05-29 | Static-pressure suspension beam barrel device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190918321A (en) * | 1908-09-10 | 1909-11-25 | Aluminiumwarenfabrik Gontensch | Improvements in Rolling Mills. |
| US3550971A (en) * | 1967-12-22 | 1970-12-29 | Schloemann Ag | Roll bearings for roll stands |
| SU622516A1 (en) * | 1977-03-01 | 1978-09-05 | Dryagin Dmitrij P | Rolling mill roll stand |
| JPS56151107A (en) * | 1980-04-23 | 1981-11-24 | Yodogawa Seikosho:Kk | Rolling method for steel sheet |
| SU1142189A1 (en) * | 1983-02-15 | 1985-02-28 | Институт металлургии Уральского научного центра АН СССР | Mill roller bearing |
| CN1340388A (en) * | 2000-08-29 | 2002-03-20 | 株式会社日立制作所 | Rolling mill and its rolling method |
| CN1985047A (en) * | 2004-07-19 | 2007-06-20 | 沃依特专利有限责任公司 | Deflection compensating roll |
| CN101402102A (en) * | 2008-11-26 | 2009-04-08 | 圣格兰（嘉兴）光机电技术有限公司 | Hydraulic direct drive backing cloth bearing roller convexity fine tuning structure of cold rolling mill |
| CN101658862A (en) * | 2009-09-24 | 2010-03-03 | 朱勉学 | Sheet rolling mill with hydraulic screwdown on support roll |
-
2012
- 2012-05-29 CN CN201210170069XA patent/CN102688891A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190918321A (en) * | 1908-09-10 | 1909-11-25 | Aluminiumwarenfabrik Gontensch | Improvements in Rolling Mills. |
| US3550971A (en) * | 1967-12-22 | 1970-12-29 | Schloemann Ag | Roll bearings for roll stands |
| SU622516A1 (en) * | 1977-03-01 | 1978-09-05 | Dryagin Dmitrij P | Rolling mill roll stand |
| JPS56151107A (en) * | 1980-04-23 | 1981-11-24 | Yodogawa Seikosho:Kk | Rolling method for steel sheet |
| SU1142189A1 (en) * | 1983-02-15 | 1985-02-28 | Институт металлургии Уральского научного центра АН СССР | Mill roller bearing |
| CN1340388A (en) * | 2000-08-29 | 2002-03-20 | 株式会社日立制作所 | Rolling mill and its rolling method |
| CN1985047A (en) * | 2004-07-19 | 2007-06-20 | 沃依特专利有限责任公司 | Deflection compensating roll |
| CN101402102A (en) * | 2008-11-26 | 2009-04-08 | 圣格兰（嘉兴）光机电技术有限公司 | Hydraulic direct drive backing cloth bearing roller convexity fine tuning structure of cold rolling mill |
| CN101658862A (en) * | 2009-09-24 | 2010-03-03 | 朱勉学 | Sheet rolling mill with hydraulic screwdown on support roll |
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| PB01 | Publication | ||
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Application publication date: 20120926 |