CN2725617Y - Mill bearing sealing ring having bilip - Google Patents
Mill bearing sealing ring having bilip Download PDFInfo
- Publication number
- CN2725617Y CN2725617Y CN 200420059598 CN200420059598U CN2725617Y CN 2725617 Y CN2725617 Y CN 2725617Y CN 200420059598 CN200420059598 CN 200420059598 CN 200420059598 U CN200420059598 U CN 200420059598U CN 2725617 Y CN2725617 Y CN 2725617Y
- Authority
- CN
- China
- Prior art keywords
- lip
- sealing
- ring
- seal ring
- roller
- 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.)
- Expired - Lifetime
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a mill bearing sealing ring having bilip. The sealing ring which is made of oil-resistant rubber comprises a ring body and a ring sealing primary lip which is centrifugally and inclinedly stretched from one side of the body and along the axial cord. The upper unit of a longitudinal section of the primary lip is a parallelogram and the lip is facing the centrifugal direction. A sealing ring secondary lip, which is quadrilateral or triangular, is provided on the working surface of the sealing ring primary lip which is inclinedly stretched out from one side of the body. The secondary lip opens to the centripetal direction along the axial cord. The end of the upper part is a circular arc surface. The top surface of the sealing ring secondary lip is contained inside the end surface of the primary lip. The primary lip and the secondary lip slide circumferentially along the base surface on the end cap of the bearing seat, which forms a bilateral control sealing. The sealing of the primary lip prevents the extraneous contamination invading the bearing seat, to avoid the damage of the bearing. The sealing of the secondary lip prevents the lubricant in the bearing seat from overflowing, to avoid the pollution of the bowl and improve the quality of the mill bar.
Description
Technical field
The utility model relates to a kind of improved mechanical seal ring, specifically a kind of roller-mill bearing seal ring that has lips.
Background technique
At present in the prior art, employed roller-mill bearing seal ring has many kinds of structural types, wherein have one of Sweden state to produce tame good fortune and penetrate Da Gumifa Bick (ForshedaGummifabrik) AB company and released the rubber seal ring (see figure 1) that a kind of roller-mill bearing is used, it is formed by annular body with by the annular seal lip that main body one skew back extroversion is stretched out.Longitudinal plane is slightly V-shaped, main body is that monolateral trapezoidal, sealing lip is to be trapezoidal; Find during work that lip is too thin, because of having full-bodied lubricant grease when in bearing support, being squeezed,, and outwardly-bent distortion occurs, make the sealing surface bad connection, cause the sealing inefficacy because the lip end can outwards overflow.Another produces the Martin Mike that company (MERKEL) of the Hamburg, Germany of family, once released the slightly V-shaped seal ring (see figure 2) in a kind of cross section, form by annular body with by the annular seal lip that main body one skew back extroversion is stretched out, this kind structure is when work, often occur circumferentially there is a sealing force problem of non-uniform because of what sealing was paid, make sewage and other foreign material invade bearing, destroyed seal action; Damage bearing.
And another kind of Chinese patent technology be " the roller-mill bearing seal ring that has the labyrinth annular groove " (ZL96241776.9), be on the working surface that is closely attached on the end casing basal plane of sealing lip, be manufactured with multiple tracks mazy type annular groove, and be to be adjacent to the end casing basal plane to cooperate, make this structure strengthen the reliability of end face seal.But new problem has appearred again in the roller-mill bearing place, that is: seal ring can stop extraneous sewage and other foreign material intrusion bearing, but because of the lip work of seal ring is unidirectional, under milling train axle band inner bearing collar rotation situation, the rolling bearing internal grease can outwards be overflowed, and causes bearing to cause damaging because of insufficient lubrication; It is when this seal ring structure is applied on the cold rolling mill again, and the grease that overflows can flow to the milling train work roll, causes the stocking surface brightness to be adversely affected, and reduces the mill bar quality level.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned technical deficiency part, and a kind of roller-mill bearing seal ring two way sealed, that have lips that carries out is provided.
Task of the present utility model is achieved in that a kind of roller-mill bearing seal ring that has lips, it is the annular seal ring of making by oil resistant rubber, be by annular body 1, with be that the centrifugal oblique annular seal master lip 2 that stretches out is formed by main body 1 one sides along axis, the longitudinal plane top of main lip 2 is to be flat shape quadrilateral, lip is towards centrifugal direction, it is characterized in that in annular body 1 one sides, on the working surface 2a of the outside annular seal master lip 2 that oblique extroversion is stretched out, be shaped on the longitudinal cross-section and be quadrilateral or the secondary lip 3 of leg-of-mutton annular seal, its lip 3a is towards centripetal direction along axis, and tip portion 3b is an arc-shaped surface on it; And when the secondary lip 3 of annular seal was triangle, angle was last tip portion 3b on it; The radius of its arc-shaped surface is 0.8～2 millimeter, and the secondary lip 3 top end faces of annular seal are contained in the axially inboard of the end face of main lip 2; Main lip 2 thickness are 3～8 millimeters, and secondary lip 3 thickness are 2～4.5 millimeters, and main lip 2 working surface 2a become 100 °～160 ° angle with secondary lip 3 working surface 3c.
The advantage that the utility model and prior art are compared is: owing to increased secondary lip on the main lip labial surface of sealing, when seal ring is worked is to rotate with the axis, main lip and secondary lip are close on the cover plate basal plane of bearing cover simultaneously, and the circumference that then rotates with the axis slides, and form two sealing pairs thus.Main first lip seal is secondary to stop extraneous dirt to invade bearing support in order to form; Second secondary lip seal is secondary to stop the oiling agent in the bearing support excessive, has both prevented to damage bearing, avoids polluting roll again.The utility model has been initiated the structure that the roller-mill bearing seal ring is modified into inside and outside two-way control seal action, and it needn't change the replacing seal ring to existing equipment, and operation room is prompt convenient.
Description of drawings
Below in conjunction with accompanying drawing the utility model rubber seal ring is further described.
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is an integral installation phantom of the present utility model.
Among the figure: 1. the secondary lip 3a. of working surface 3. annular seals of annular body 2. annular seal master lip 2a. master lips 2 lip 3b. goes up the working surface of the secondary lip 3 of tip portion 3c.
Embodiment
Referring to Fig. 1, a kind of roller-mill bearing seal ring that has lips, its longitudinal cross-section slightly is k shape, it by annular body 1 and annular body 1 one sides stretch out for centrifugal tilted direction vertically, the cross section slightly is tetragonal annular seal lip 2 and forms.The longitudinal plane top of main lip 2 is parallelograms, and its lip is towards centrifugal direction.On the working surface 2a of annular seal master lip 2, being manufactured with that centripetal direction tiltedly stretches out, cross section is the secondary lip 3 of tetragonal annular seal, its top is lip 3a, lip 3a is towards centripetal direction along axis, secondary lip 3 thickness are 3 millimeters, tip portion 3b end face is an arc-shaped surface on it, and its radius is 1.5 millimeters, and tip portion 3b end face is contained in the inboard of the end face of main lip 2 on the secondary lip 3 of annular seal; The thickness of annular seal master lip 2 is 5 millimeters, and the working surface 2a of main lip 2 becomes 120 ° angle with the working surface 3c of secondary lip 3.Annular seal master lip 2 also can be made into triangle, tip portion 3b shape invariance on it, and lower seat drops on the working surface 2a of annular seal master lip 2.
Referring to Fig. 2, be a kind of roller-mill bearing seal ring that has lips, the longitudinal sectional view of integral installation structure in rolling mill bearing, the annular body 1 of oil resistant rubber seal ring is on the fastening roll positioning ring that is installed in rotation behind the elastic stretching, with roll rotation; At the annular body 1 one sides annular seal master lip 2 that stretch out, the cross section parallelogram for centrifugal tilted direction vertically, on main lip 2 working surface 2a, stretch out the cross section in oblique and slightly be the secondary lip 3 of tetragonal annular seal, it has the working surface 3c of secondary lip 3 relatively; With the outer end of the working surface 2a of main lip 2 and the lip 3a and the last tip portion 3b of secondary lip 3, and the angle that forms 130 ° between working surface 2a, the 3c, form the sealing pair of two-way control.Make main lip 2 make circumferential slippage with secondary lip 3 along the bearing cover basal plane, main lip 2 sealing pairs stop extraneous dirt to invade bearing support, promptly prevent to make sewage and other foreign material to invade bearing, have destroyed seal action; Damage bearing; And secondary lip 3 sealing pairs are to stop the oiling agent in the bearing support excessive with lip 3a and last tip portion 3b, prevent to pollute roll, prevent to cause the stocking surface brightness to be adversely affected, and reduce the mill bar quality level.
Claims (5)
1, a kind of roller-mill bearing seal ring that has lips, it is the annular seal ring of making by oil resistant rubber, be by annular body (1), with be that the centrifugal oblique annular seal master lip (2) that stretches out is formed by main body (1) one side along axis, on the top of main lip (2) longitudinal plane is to be flat shape quadrilateral, lip is towards centrifugal direction, it is characterized in that: in annular body (1) one side, tiltedly on outside annular seal master lip (2) working surface (2a) that extroversion is stretched out, be manufactured with the longitudinal cross-section and be the secondary lip (3) of tetragonal annular seal, its lip (3a) is towards centripetal direction along axis, and go up tip portion (3b) is arc-shaped surface, its radius is 0.8～2 millimeter, and the secondary lip of annular seal (3) is gone up tip portion (3b) end face and is contained in the axially inboard of main lip (2) end face.
2, the roller-mill bearing seal ring that has lips according to claim 1, it is triangular in shape to it is characterized in that secondary lip (3) can be made into the longitudinal cross-section, and angle is the last tip portion (3b) of secondary lip (3) on it.
3, the roller-mill bearing seal ring that has lips according to claim 1 is characterized in that ring-type master lip (2) thickness is 3～8 millimeters.
4, the roller-mill bearing seal ring that has lips according to claim 1 is characterized in that secondary lip (3) thickness of ring-type is 2～4.5 millimeters.
5, the roller-mill bearing seal ring that has lips according to claim 1 is characterized in that main lip (2) working surface (2a) becomes 100 °～160 ° angle with secondary lip (3) working surface (3c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059598 CN2725617Y (en) | 2004-05-24 | 2004-05-24 | Mill bearing sealing ring having bilip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059598 CN2725617Y (en) | 2004-05-24 | 2004-05-24 | Mill bearing sealing ring having bilip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2725617Y true CN2725617Y (en) | 2005-09-14 |
Family
ID=35040336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420059598 Expired - Lifetime CN2725617Y (en) | 2004-05-24 | 2004-05-24 | Mill bearing sealing ring having bilip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2725617Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094976A (en) * | 2011-03-11 | 2011-06-15 | 莱芜钢铁股份有限公司 | Double-lip sealing ring |
| CN105570467A (en) * | 2016-03-24 | 2016-05-11 | 衡水哈西特液压机械有限公司 | Sealing member of high-speed wire rolling mill |
| CN111495989A (en) * | 2020-04-14 | 2020-08-07 | 宝钢湛江钢铁有限公司 | Bearing seat structure for preventing water from entering cold roll bearing in hot rolling layer cooling area |
| CN112780690A (en) * | 2019-11-11 | 2021-05-11 | 斯凯孚公司 | Rolling element bearing assembly |
| CN114135674A (en) * | 2021-11-30 | 2022-03-04 | 中国航发湖南动力机械研究所 | Dynamic seal structure for speed reducer |
-
2004
- 2004-05-24 CN CN 200420059598 patent/CN2725617Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094976A (en) * | 2011-03-11 | 2011-06-15 | 莱芜钢铁股份有限公司 | Double-lip sealing ring |
| CN105570467A (en) * | 2016-03-24 | 2016-05-11 | 衡水哈西特液压机械有限公司 | Sealing member of high-speed wire rolling mill |
| CN112780690A (en) * | 2019-11-11 | 2021-05-11 | 斯凯孚公司 | Rolling element bearing assembly |
| CN111495989A (en) * | 2020-04-14 | 2020-08-07 | 宝钢湛江钢铁有限公司 | Bearing seat structure for preventing water from entering cold roll bearing in hot rolling layer cooling area |
| CN114135674A (en) * | 2021-11-30 | 2022-03-04 | 中国航发湖南动力机械研究所 | Dynamic seal structure for speed reducer |
| CN114135674B (en) * | 2021-11-30 | 2023-11-24 | 中国航发湖南动力机械研究所 | Dynamic seal structure for speed reducer |
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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: 20081128 Address after: No. 5, super Road, Changping District science and Technology Park, Beijing, 102200 Patentee after: Beijing Kunlun Bearing Co., Ltd. Address before: Room 9, Room 303, Zhenxing Road, Changping District science and Technology Park, Beijing, 102200 Patentee before: Beizhou Kunlun Rolling Mill Bearing Mfg. Co., Ltd., Beijing |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING KUNLUN BEARING CO., LTD. Free format text: FORMER OWNER: BEIJING BEIZHOU KUNLUN ROLLING MILL BEARING MANUFACTURING CO., LTD. Effective date: 20081128 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140524 Granted publication date: 20050914 |