CN203817052U - Rolling mill bearing device - Google Patents
Rolling mill bearing device Download PDFInfo
- Publication number
- CN203817052U CN203817052U CN201420196498.9U CN201420196498U CN203817052U CN 203817052 U CN203817052 U CN 203817052U CN 201420196498 U CN201420196498 U CN 201420196498U CN 203817052 U CN203817052 U CN 203817052U
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- Prior art keywords
- bearing
- slide block
- roller bearing
- block
- roll
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- Expired - Lifetime
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- 238000005096 rolling process Methods 0.000 title claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims description 13
- 238000005452 bending Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 210000003739 neck Anatomy 0.000 description 12
- 238000013000 roll bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 206010052904 Musculoskeletal stiffness Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 206010058483 Nuchal rigidity Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model discloses a rolling mill bearing device which comprises a bearing seat mounted at the neck of a working roller, and a slide block arranged between the bearing seat and a cylindrical roller bearing, wherein a conical roller bearing and the cylindrical roller bearing are mounted in the bearing seat; a through hole for the embedding of the cylindrical roller bearing is formed in the slide block and is in close fit with the outer ring of the cylindrical roller bearing; the left and right sides of the slide block are in close fit with the bearing seat; gaps are formed between the upper and lower sides of the slide block and the bearing seat. According to the rolling mill bearing device, when the plate shape has a problem and needs to be adjusted by bending the working roller, the stress of the cylindrical roller bearing can be guaranteed to be uniform, and meanwhile, the cylindrical roller bearing is not restricted in the vertical direction, so that the purposes of prolonging the service life of the bearing and increasingthe production efficiency are achieved.
Description
Technical field
The utility model belongs to milling equipment technical field, is specifically related to a kind of rolling mill bearing device.
Background technology
Along with the rapid growth of national economy, the demand of flat cold-rolled sheet constantly increases, but the end product quality of China's flat cold-rolled sheet is not high, compared with external product, also have larger gap, be mainly manifested in that chemical composition and mechanical performance are unstable, the aspect such as finished strip surface quality, plate shape and dimensional accuracy.The reason of searching to the bottom is that domestic flat cold-rolled sheet production scale is little, and equipment is low.
Producing the matter of utmost importance of flat cold-rolled sheet is exactly the problem that will solve working roll roller footpath, because can roll cold-strip steel limit minimum thickness with operation roll of mill roller footpath is closely related, working roll roller footpath is less, can roll and be with steel thinner.But in reducing roller footpath, its roll rigidity just reduces naturally, and working roll bending deformation is large, plate shape is difficult to control.As can be seen here, reducing roller footpath is obviously contradiction with increasing roll rigidity.In order to meet the thin plate market demand, it is inexorable trend that working roll roller footpath reduces, and that just must make a search in increase roll rigidity.
Analyze and field trial by mass data, can, by lengthening working roll roll neck and increasing a pair of cylinder roller bearing, be equivalent to carry out support works roller with a pair of four-row tapered roller bearing and a pair of cylinder roller bearing.In the operation of rolling, working roll rigidity increases like this, and deflection reduces, can better control panel shape.Although this mode makes working roll rigidity obtain guarantee, introduce a new problem, i.e. the stressed problem of cylinder roller bearing.When plate shape goes wrong need to adjust with work roll bending time, cylinder roller bearing can hinder working roll roll neck place and produce amount of deflection, the effect of roller is just not obvious like this, plate shape also just can not get better improvement, simultaneously working roll is in the horizontal direction because the roll diameter of roller deflection that diminishes increases, cylinder roller bearing is played a supporting role at axle journal place, has strengthened again working roll roll neck rigidity.This just requires cylinder roller bearing to belong in the vertical direction freely without restrained condition, and horizontal direction will be improved roll neck horizontal deflection, bearing need support stressed, just be equivalent to bearing to be placed in a vertical slotted hole, but when shaft strength, its outer ring is that line contacts with bearing block, so just makes bearing outer ring deform, rolling element unbalance stress, thereby bearing shortens service life greatly, have a strong impact on production efficiency.
Utility model content
The technical problems to be solved in the utility model is to cause because of unbalance stress and the defect of the problems such as the lost of life provide a kind of rolling mill bearing device that can effectively address the above problem when go wrong cylinder roller bearing need to adjust with work roll bending time of plate shape for cannot effectively solving in prior art.
The utility model solves the technical scheme that its technical problem adopts:
A kind of rolling mill bearing device is provided, comprise the bearing block that is installed on working roll roll neck place, taper roll bearing and cylinder roller bearing are installed in described bearing block, this device also comprises the slide block being arranged between bearing block and cylinder roller bearing, on described slide block, offer and embed the through hole that cylinder roller bearing is used, the outer ring of described through hole and cylinder roller bearing fits tightly, and the left and right sides and the bearing block of described slide block fit tightly, and between upper and lower both sides and bearing block, is provided with gap.
In device described in the utility model, the profile of described slide block is rectangle.
In device described in the utility model, one end of described slide block is connected with the ladder step of bearing block, and the other end is connected with the axle head gland that is fixedly installed on bearing block rear end.
In device described in the utility model, between described slide block and axle head gland, be provided with certain interval.
The utility model, there is following beneficial effect: the utility model is going wrong when plate shape need to adjust with work roll bending time, can ensure that cylinder roller bearing is stressed evenly, can allow again cylinder roller bearing in vertical direction without constraint simultaneously, and then the object that reaches prolongation bearing service life, enhances productivity.
Concrete, because working roll roller footpath diminishes, corresponding working roll roll neck reduces simultaneously, roll neck Stiffness.While changing plate shape by work roll bending, roll neck place is because bending roller force produces deflection, in order to make roller effect reach best, cylinder roller bearing (hereinafter to be referred as bearing) is located not hinder roll neck in bending roller force direction and is produced deflection, both bearing can slide up and down, and considered that the diameter of axle reduces roll Stiffness simultaneously, and cylinder roller bearing can improve the horizontal rigidity of working roll roll neck, cause shaft strength inequality, the life-span shortens greatly.As can be seen here, bearing needs in the vertical direction freely, is subject in the horizontal direction load, also will ensure that shaft strength is even.The utility model is by increasing a slide block, bearing is embedded in slide block, slide block is embedded in bearing block again, and slide block and bearing block are gapped in vertical direction, slide block can slide up and down and not limit the vertical deflection of roll neck in bearing block when roller like this, ensure well again the horizontal deflection of axle journal, be equivalent to the line contact of bearing block and bearing to be converted into the face contact of slide block sliding surface and bearing block, and bearing is stressed even because contacting with slider surface all the time, the load of greatly having improved bearing distributes, and has improved bearing service life.
Further, the profile of slide block is designed to rectangle, not only easy to process, and can better ensure the contact area maximum of slide block left and right sides and bearing block it to be slided up and down more stable.
Further, by ladder step and the axle head gland of bearing block, slide block is positioned, simply effective, and leave gap between slide block and axle head gland, can not be slided up and down by axle head gland dieback by anti-limited slip block.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the cutaway view along A-A line in Fig. 1;
Fig. 3 is the stressed schematic diagram of existing cylinder roller bearing;
Fig. 4 is the stressed schematic diagram of cylinder roller bearing of the present utility model.
In figure: gland, 14-dust ring outside 1-bearing block, 2-liner plate, 3-thrust ring, 4-external seal lid, 5-bearing apical ring, the interior seal cover of 6-, 7-taper roll bearing, 8-working roll, 9-distance collar, 10-slide block, 11-cylinder roller bearing, 12-axle head gland, 13-.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
In preferred embodiment of the present utility model, as shown in Figure 1 and Figure 2, rolling mill bearing device, comprise the bearing block 1 that is installed on working roll 8 roll neck places, taper roll bearing 7 and cylinder roller bearing 11 are installed in bearing block 1, this device also comprises the slide block 10 being arranged between bearing block 1 and cylinder roller bearing 11, on slide block 10, offer the through hole that embeds cylinder roller bearing 11 use, the outer ring of through hole and cylinder roller bearing 11 fits tightly, the left and right sides of slide block 10 and bearing block 1 fit tightly, and between upper and lower both sides and bearing block 1, are provided with gap.The profile of slide block 10 is rectangle, and its one end is connected with the ladder step of bearing block 1, and the other end is connected with the axle head gland 12 that is fixedly installed on bearing block 1 rear end, between slide block 10 and axle head gland 12, is provided with certain interval.
In the present embodiment, as shown in Figure 2, taper roll bearing 7 is four-row tapered roller bearing, and its rear end, outer ring is fixed by the interior ladder step of bearing block 1, and outer ring front end is fixing by interior seal cover 6, and interior seal cover 6 is fixed by screws on bearing block 1; Withstand by distance collar 9 its inner ring rear end, and inner ring front end is pressed against on bearing apical ring 5, and bearing apical ring 5 is fixing by thrust ring 3, and thrust ring 3 is fixed by working roll 8 shaft shoulders again, and thrust ring 3 is dissection type assembling.Cylinder roller bearing 11 is Biserial cylindrical roller bearing, and its outer ring front end is fixed by the interior ladder step of bearing block 1, and rear end, outer ring compresses by axle head gland 12, and axle head gland 12 is screwed on bearing block 1; Its inner ring rear end is fixed by collars and the shaft shoulder, and inner ring front end compresses by distance collar 9 and the inner ring of taper roll bearing 7.Bearing block 1 rear and front end is all provided with dust ring 14, the liner plate 2 of bearing block when two ends are provided with roll change Shang Xia 1.
As shown in Figure 3, existing cylinder roller bearing 11 for line contacts, makes cylinder roller bearing unbalance stress with bearing block 1.As Fig. 1, Fig. 2, shown in Fig. 4, principle of the present utility model is: in the time of working roll 8 roller, cylinder roller bearing 11 place's roll necks need to produce deflection and improve plate shape, if bearing block 1 and cylinder roller bearing 11 do not have relative sliding gap, the sag of working roll 8 will reduce, roller effect will reduce, plate shape also just can not get improving, but gapped words between cylinder roller bearing 11 and bearing block 1, cylinder roller bearing 11 is just only subject to the power of horizontal direction, vertical direction does not stress, cylinder roller bearing 11 will unbalance stress, the lost of life, therefore increase by one can be along bending roller force direction the slide block 10 in bearing block 1 interior slip, slide block 10 can slide up and down and not limit the vertical deflection of roll neck in bearing block 1 when roller like this, ensure well again the horizontal rigidity of axle journal, be equivalent to bearing block 1 and the line contact of cylinder roller bearing 11 to be converted into the face contact of slide block 10 sliding surfaces and bearing block 1, the load of greatly having improved cylinder roller bearing 11 distributes, extend service life, improve the production efficiency of thin plate rolling.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. a rolling mill bearing device, comprise the bearing block (1) that is installed on working roll (8) roll neck place, taper roll bearing (7) and cylinder roller bearing (11) are installed in described bearing block (1), it is characterized in that: this device also comprises the slide block (10) being arranged between bearing block (1) and cylinder roller bearing (11), on described slide block (10), offer the through hole that embeds cylinder roller bearing (11) use, the outer ring of described through hole and cylinder roller bearing (11) fits tightly, the left and right sides of described slide block (10) and bearing block (1) fit tightly, between upper and lower both sides and bearing block (1), be provided with gap.
2. device according to claim 1, is characterized in that: the profile of described slide block (10) is rectangle.
3. device according to claim 1, is characterized in that: one end of described slide block (10) is connected with the ladder step of bearing block (1), and the other end is connected with the axle head gland (12) that is fixedly installed on bearing block (1) rear end.
4. device according to claim 3, is characterized in that: between described slide block (10) and axle head gland (12), be provided with certain interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196498.9U CN203817052U (en) | 2014-04-22 | 2014-04-22 | Rolling mill bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196498.9U CN203817052U (en) | 2014-04-22 | 2014-04-22 | Rolling mill bearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817052U true CN203817052U (en) | 2014-09-10 |
Family
ID=51472595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420196498.9U Expired - Lifetime CN203817052U (en) | 2014-04-22 | 2014-04-22 | Rolling mill bearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841698A (en) * | 2015-06-08 | 2015-08-19 | 攀钢集团成都钢钒有限公司 | Changing method of continuous rolling roller subassembly of continuous rolling machine |
| CN110296840A (en) * | 2019-07-25 | 2019-10-01 | 洛阳Lyc轴承有限公司 | A kind of vehicle tapered roller bearing grease lubrication test device |
-
2014
- 2014-04-22 CN CN201420196498.9U patent/CN203817052U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841698A (en) * | 2015-06-08 | 2015-08-19 | 攀钢集团成都钢钒有限公司 | Changing method of continuous rolling roller subassembly of continuous rolling machine |
| CN110296840A (en) * | 2019-07-25 | 2019-10-01 | 洛阳Lyc轴承有限公司 | A kind of vehicle tapered roller bearing grease lubrication test device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |