CN2770827Y - Rolling mill bearing with two-side sealing - Google Patents
Rolling mill bearing with two-side sealing Download PDFInfo
- Publication number
- CN2770827Y CN2770827Y CN 200520002255 CN200520002255U CN2770827Y CN 2770827 Y CN2770827 Y CN 2770827Y CN 200520002255 CN200520002255 CN 200520002255 CN 200520002255 U CN200520002255 U CN 200520002255U CN 2770827 Y CN2770827 Y CN 2770827Y
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- Prior art keywords
- sealing
- ring
- bearing
- lip
- face
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 52
- 238000005096 rolling process Methods 0.000 title claims abstract description 28
- 230000002146 bilateral effect Effects 0.000 claims description 16
- 238000010276 construction Methods 0.000 claims description 5
- 210000003813 thumb Anatomy 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 claims description 2
- 230000002902 bimodal effect Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- TXNRYTCUNXUNFH-QPHDTYRISA-N N(3)-fumaramoyl-(S)-2,3-diaminopropanoic acid zwitterion Chemical compound OC(=O)[C@@H](N)CNC(=O)\C=C\C(N)=O TXNRYTCUNXUNFH-QPHDTYRISA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a rolling mill bearing with a two-side sealing devices, which comprises a bearing inner ring, four rows of rollers and two outer rings which are in parallel, wherein the inner diameter face of the bearing is provided with a left spiral groove or a right spiral groove; the bearing is provided with a two-side axial-direction and radial-direction multi-point type sealing structure; the positions near both ends of the outer diameter of a rolling way of the bearing inner ring are respectively provided with an annular groove; a snap ring which is provided with a fracture is matched with the annular groove; a ring face which is larger than the outer diameter of the inner ring is an axially sealing base face; the outer end face of a retaining side of a rolling way of each of the two outer rings which are in parallel is provided with a radial sealing of an inner loop spigot with inclination; an L-shaped annular support is installed on the outer end face of the retaining side of the rolling way of each of the two outer rings which are in parallel; the L-shaped annular support supports the inner side face of a sealing end and a rubber sealing loop with a double-peak isosceles triangle type main sealing lip, which is matched with the axially sealing base face; the top end of the rubber sealing loop with a double-peak isosceles triangle type main sealing lip is provided with a thumb-shaped sealing auxiliary lip which is matched with the radial sealing base face of the outer loop face of the bearing inner ring. The utility model is a product which can be utilized until the design life without maintenance in the midway.
Description
Technical field
The utility model relates to a kind of improved rolling mill bearing, and particularly a kind of rolling mill bearing that has the bilateral sealing is applicable to rolling bearing mill multiple row cylinder roller bearing.
Background technology
In existing technology, rolling mill bearing is to be applied on the rolling-mill roller roll neck, and the structure of rolling mill bearing is by three kinds on the FC type of People's Republic of China (PRC) machinery industry standard JB/T5389.1-1995 " rolling bearing mill four-line column roller bearing " defined (inner ring, two outer rings, two retainers and four-row cylindrical roller), FCD type (two inner rings, two outer rings, two retainers and four-row cylindrical roller) and FCDP type (two inner rings, two outer rings, four retainers, four-row cylindrical roller and three outer ring back-up rings).The rolling mill bearing structure is also seen four-line column roller bearing part (the 10th page the-the 49th page) in the catalogue of sample B earings forheavy engineering applications of Sweden SKF bearing company (the 98th page the-the 105th page) and the people of BeiJing, China Bearing Factory.
The characteristics of these bearings are: all contain inner ring, outer ring, four row rollers, retainer four parts in their structure, the outer back-up ring in addition that has.Bearing inner race does not have rib, and it is fastened on the roller neck, can come with the overall separation of bearing, with the bearing exchange of other same model, so that roll change.But because the working environment of rolling mill bearing is very abominable, not only high temperature, high load capacity, the erosion that also will bear a large amount of cooling waters, hammer scale and dust.And milling train needs often to change roll at work, in order to make roll change quick, easy, the bearing block sealing device that makes is all fairly simple, its sealing effectiveness is not good, and lubricating grease is run off, and water and iron filings, dust are invaded bearing inside, rolling mill bearing does not reach the fatigue life of expectation, the raceway face layer takes place too early to be peeled off, even " stuck " phenomenon that usually bearing takes place, heavy losses brought to steel rolling production.
Send out the name content
The purpose of this utility model is to remedy above-mentioned the deficiencies in the prior art part, and a kind of inseparable, rolling mill bearing of carrying the bilateral sealing device is provided.
The utility model is to realize with such method: a kind of rolling mill bearing that has the bilateral sealing, include 2, two on a bearing inner race 1, four row roller arranged side by side outer ring 3, on the bearing bore diameter face, be shaped on a dark 1mm left side or right helicla flute; It is characterized in that: bearing be have bilateral, axially with multipoint mode hermetically-sealed construction radially, be by snap ring 4, slightly be the rubber seal ring 6 of " J " shape, and on main lip 7 of sealing and sealing pair lip 8, slightly L-shaped ring skeleton 5 formations; At the place, nearly two ends of the roller raceway external diameter of bearing inner race 1, respectively a cannelure that 1.5～3mm is dark is arranged, in cannelure, cooperate a snap ring 4 is housed, snap ring 4 is shaped on fracture, and in the cannelure of the bearing inner race of packing into after can drawing back, it rotates with bearing inner race 1; The thickness of this snap ring 4 is 2～4mm, be that the cannelure internal diameter is identical with snap ring 4 internal diameters, cannelure width and snap ring 4 thickness match, the size of snap ring 4 external diameters, it is its size of covering 1/4～1/3 place of roller 2 diameters, the outer of cannelure is to the cylinder of the roller raceway two ends external diameter of bearing inner race 1, be with rubber seal ring 6 on sealing pair lip 8, the axial seal basal plane that cooperates; The wide anchor ring that goes out bearing inner race 1 outer radius portion of snap ring 4, for rubber seal ring 6 on the main lip 7 of sealing, the axial seal basal plane of cooperation; And on the outer face of two outer rings, 3 roller raceway ribs arranged side by side, ring seam in being shaped on, the axial limit of ring seam in being somebody's turn to do, towards shaft centre line direction tilt alpha=4 °～8 °, cooperate on interior ring seam slightly L-shaped ring skeleton 5 is housed, rubber seal ring 6 is equipped with towards shaft centre line direction tilt alpha=4 °～8 ° in these ring skeleton 5 axial limits on ring skeleton 5, smear viscose glue between the assembly parts, in order to reinforce bond strength; Inner seal end at rubber seal ring 6 one ends, it is the main lip 7 of sealing that slightly is two projecting points of " ∑ " shape, two projecting points that seal main lip 7 are similar to bimodal isoceles triangle form, and the sealing basal plane of itself and snap ring 4 matches, and constitutes two projecting point lip labyrinth seal structures; And be the secondary lip 8 of annular seal that slightly is the thumb capitiform with the axial support end of 7 one-tenths 90 ° on main lip of sealing, the cylinder of the external diameter of sealing pair lip 8 and bearing inner race 1 matches to constitute and seals, and also can play the radial seal effect.Seal lip is top, and angle is 30 °～75 ° between its top with the slick and sly switching of R0.2～0.5mm, seals main lip 7 and snap ring 4 sides of rotating with inner ring, and sealing pair lip 8 is formed sealing pair with the external diameter cylinder of bearing inner race 1.
The advantage that the utility model and prior art are compared is: bearing is for having bilateral, multipoint mode hermetically-sealed construction axially and radially, the rubber seal ring medial surface has two circular protrusions to seal main lip, there is the sealing pair lip on the top, it matches with the sealing basal plane of snap ring respectively, and the cylinder of bearing inner race raceway two ends external diameter match, constitute the contact seal pair.
1 bearing has self-seal device, this the device for axially, radially multiple spot lip seal, be greatly improved compared with prior art bearing lubrication condition, bearing can be turned round under bad working environment safely and reliably, avoided the modal accident of rolling mill---bearing burns because of the accident that has entered reasons such as water and hammer scale and cause, make the carefree running of bearing, improved the steel rolling operation rate.
2 both-end multiple spot self sealing structures make to lubricate guarantee, has improved the wear-out life of bearing effectively.Inseparable structure makes raceway can arrange full roller (not self-locking), removes retainer simultaneously, has improved the bearing capacity of bearing greatly, has prolonged the fatigue life of bearing, in rolling processing Bearing Consumption is obviously reduced, and has reduced production cost.
3 because the bilaterals of bearing, axially with multipoint mode hermetically-sealed construction radially, be the inseparable formula of integral body, so bearing is separated no longer when changing roll, has protected the cleaning of bearing inside effectively.Simultaneously bearing can prepacked with grease, often need not the bearing cleaning maintenance has been alleviated working strength of workers greatly.
4 rolling mill bearings are realized integral replacing, no longer need bearing is taken apart, cleaned, and mend dress lubricating grease, and dirty oily degras can not overflow the pollution working site.Therefore, also help purifying working environment.
Description of drawings
Fig. 1 is a structure cutaway view of the present utility model.
Fig. 2 is bilateral of the present utility model, multipoint mode sealed structure chart axially and radially.
Among the figure: 1. 3. two outer rings arranged side by side of bearing inner race 2. 4 row rollers, 4. snap rings, 5. ring skeletons, 6. rubber seal rings 7. seal main lip 8. sealing pair lips
The specific embodiment
The utility model is made the detailed description in a step below in conjunction with accompanying drawing.
Referring to Fig. 1,2, a kind of rolling mill bearing that has bilateral sealing, be in rolling bearing mill with on the basis of four-line column roller bearing, install additional axially and radially multipoint mode sealing in the bilateral of bearing; Promptly at cannelure its bearing inner race 1 nearly two ends, that respectively be shaped on dark a 1.5～3mm outside the raceway on the diametric plane, in cannelure, cooperate and adorning the snap ring 4 that has opening, the thickness of this snap ring 4 is 3mm, the cannelure internal diameter is identical with snap ring 4 internal diameters, cannelure width and snap ring 4 thickness match, the outside dimension of snap ring 4 is covered roller diameter and is of a size of 1/4, and it is the radial seal basal plane greater than ring surface part bearing inner race 1 outer radius portion, snap ring 4; Is footpath, axial seal basal plane by cannelure to the outer cylinder the outer face of bearing inner race 1; On the outer face of the outside of four row rollers, two outer rings 3 arranged side by side, be shaped on axial inner stopper, the axial limit of inner stopper, towards shaft centre line direction tilt alpha=4 °～8 °, on inner stopper, slightly L-shaped ring skeleton 5 is housed, ring skeleton 5 supports slightly the rubber seal ring 6 that is " J " shape, and smear binding agent in its junction, in order to increase the bond strength between the element.End in addition at rubber seal ring 6 is inboard, be shaped on slightly and be the main lip 7 of sealing " ∑ " shape, that two projecting points are arranged, seal two projecting points of main lip 7, be the double-peak type isosceles triangle, and rubber seal ring 6 end tops, and be the annular seal pair lip 8 that slightly is the thumb capitiform with the axial support end of 7 one-tenths 90 ° on main lip of sealing; Snap ring 4 ring surface parts that seal main lip 7 and be with bearing inner race 1 outer radius portion match, sealing pair lip 8 is and footpath, the sealing that matches of axial seal basal plane, constituted rolling mill bearing bilateral contact seal pair, seal lip is top with the slick and sly switching of R0.2～0.5mm, and angle is 30 °～75 ° between its top.The utility model because of have bilateral, axially with multipoint mode hermetically-sealed construction radially, make mill roller bearing use time limit projected life, or till the breaking-up, in its whole work, need not take cleaning, maintenance process such as grease-added apart.
Claims (3)
1, a kind of rolling mill bearing that has bilateral sealing includes a bearing inner race (1), multiple row roller (2), and two outer rings (3) arranged side by side are manufactured with a dark 1mm left side or right helicla flute on the bearing bore diameter face; It is characterized in that: bearing is to have bilateral, multipoint mode hermetically-sealed construction axially and radially, be by snap ring (4), slightly be the rubber seal ring (6) of " J " shape, and on main lip of sealing (7) and sealing pair lip (8), slightly L-shaped ring skeleton (5) constitutes; Nearly two ends at bearing inner race (1) raceway external diameter are located, respectively a cannelure that 1.5～3mm is dark are arranged, and cooperate in cannelure a snap ring (4) is housed; Snap ring (4) is shaped on fracture, is to rotate with bearing inner race; The thickness of this snap ring (4) is 2～4mm, and the size of snap ring (4) external diameter is its size of covering 1/4～1/3 place of roller diameter; The outer of cannelure is to the cylinder of the roller raceway two ends external diameter of bearing inner race (1), be with rubber seal ring (6) on sealing pair lip (8), the axial seal basal plane that cooperates; The wide anchor ring that goes out bearing inner race (1) outer radius portion of snap ring (4) is the axial seal basal plane that cooperates with the main lip of sealing (7) on the rubber seal ring (6); And on the outer face of two outer ring (3) roller raceway ribs arranged side by side, ring seam in being shaped on, the axial limit of this inner stopper is towards shaft centre line direction tilt alpha=4 °～8 °, on interior ring seam, cooperate a slightly L-shaped ring skeleton (5) is housed, rubber seal ring (6) is housed on ring skeleton (5), is coated with viscose glue between the assembly parts; Inner seal end at rubber seal ring (6) one ends, it is the main lip of sealing (7) that slightly is two projecting points of " ∑ " shape, these two projecting points are similar to bimodal isoceles triangle form, the sealing basal plane of itself and snap ring (4) matches, constitute two projecting point lip labyrinth sealings, and becomes 90 ° axial support end with the main lip of sealing (7) is the annular seal pair lip (8) that slightly is the thumb capitiform, the sealing that matches of the cylinder of the external diameter of secondary lip (8) and bearing inner race (1); Seal lip is top, and angle is 30 °～75 ° between its top with the slick and sly switching of R0.2～0.5mm, and lip is formed sealing pair with snap ring (4) side of rotating with inner ring and with the cylinder of bearing inner race (1) external diameter.
2, the rolling mill bearing of bilateral sealing according to claim 1 is characterized in that the cannelure internal diameter is identical with snap ring (4) internal diameter, and cannelure width and snap ring (4) thickness matches;
3, the rolling mill bearing of bilateral according to claim 1 sealing, it is characterized in that ring skeleton (5) axially the limit towards shaft centre line direction tilt alpha=4 °～8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002255 CN2770827Y (en) | 2005-02-17 | 2005-02-17 | Rolling mill bearing with two-side sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002255 CN2770827Y (en) | 2005-02-17 | 2005-02-17 | Rolling mill bearing with two-side sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2770827Y true CN2770827Y (en) | 2006-04-12 |
Family
ID=36704613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520002255 Expired - Fee Related CN2770827Y (en) | 2005-02-17 | 2005-02-17 | Rolling mill bearing with two-side sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2770827Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896070A (en) * | 2015-05-29 | 2015-09-09 | 桂林市华力重工机械有限责任公司 | Driving motor driving gear structure in series connection |
-
2005
- 2005-02-17 CN CN 200520002255 patent/CN2770827Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896070A (en) * | 2015-05-29 | 2015-09-09 | 桂林市华力重工机械有限责任公司 | Driving motor driving gear structure in series connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: No. 28, Zhongshan Road, Beijing, Changping District, China: 102200 Patentee after: Beijing Kunlun Bearing Co., Ltd. Address before: Unit 101, unit 2, building 4, Kang Shan Jia Yuan District, Changping District, Beijing, zip code: 102200 Co-patentee before: Wang Feng Patentee before: Li Yunshan |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING KUNLUN BEARING CO., LTD. Free format text: FORMER OWNER: LI YUNSHAN Effective date: 20090109 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060412 Termination date: 20120217 |