CN2748711Y - Bearing protection sealing device - Google Patents
Bearing protection sealing device Download PDFInfo
- Publication number
- CN2748711Y CN2748711Y CN 200420108802 CN200420108802U CN2748711Y CN 2748711 Y CN2748711 Y CN 2748711Y CN 200420108802 CN200420108802 CN 200420108802 CN 200420108802 U CN200420108802 U CN 200420108802U CN 2748711 Y CN2748711 Y CN 2748711Y
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing ring
- stationary
- transmission seat
- bearing
- 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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Abstract
The utility model relates to a bearing protection sealing device which is arranged on one side of a bearing. The utility model is characterized in that the utility model is composed of a stationary part and a rotational part, wherein the stationary part comprises a stationary sealing ring, an elastic floating ring and a cap pressure ring which are tightly connected into integration in the axial direction orderly. A radial clearance is arranged between the stationary sealing ring and the cap pressure ring, and the elastic floating ring can be a sealed hollow cavity corrugated tube. The rotational part comprises a rotating sealing ring which is pressed in a transmission seat ring and is integrated with the transmission seat ring, the rotating sealing ring is tightly matched with a rotary shaft for rotation, the stationary sealing ring is engaged with the rotating sealing ring, and relative slide is generated between the stationary sealing ring and the rotating sealing ring. The transmission seat ring can be provided with an axial pre-tightening force component which can be small magnetic posts embedded along the periphery of the transmission seat ring and uniformly distributed facing the stationary sealing ring. The stationary sealing ring and the rotating sealing ring are tightly stuck under the force of the pre-tightening force component.
Description
Technical field
The utility model relates to the protection of bearing, particularly a kind of bearing protection seal arrangement.
Background technique
All bearings all need to work under lubricating condition, as machinery such as gear-box, pump, blower fans, and cause 80% above factor of damage of bearings, are the leakage of lubricant oil and entering of environmental contaminants.The bearing protection of public use at present has asphalt felt, rubber oil sea, labyrinth seal etc.Wherein labyrinth seal belongs to clearance seal, and asphalt felt sealing is unreliable, exist and reveal, and the rubber oil sea shortcoming is easily aging, wearing and tearing axle, and Applicable temperature, linear velocity are low, and the life-span is short.The common mechanical sealing is because of adopting dynamic and static ring and axial external compensation mechanism, and it is big to take up room, to the equipment precision requirement height, narrow application range, and using machinery for the overwhelming majority, all there is the problem of precise decreasing, as axial motion, circular runout etc., sealing effect is undesirable.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of bearing protection seal arrangement is provided, and is not high to equipment precision requirement, and insensitive, applied widely to axial motion, circular runout, sealing effect is reliable.
Above-mentioned purpose of the present utility model is realized by following technological scheme: a kind of bearing protection seal arrangement, be arranged at bearing one side, it is characterized in that forming by stationary part and rotating part, stationary part comprises that standstill seal ring, elastic floating ring and gland ring closely link into an integrated entity successively at axial direction, have radial clearance between standstill seal ring and the gland ring; Rotating part comprises the rotary seal ring is pressed in the transmission seat ring and is integral, and with the rotatingshaft rotation that closely cooperates, standstill seal ring and rotary seal ring are fitted, between slide relative is arranged.Can be provided with the axial pre tightening force parts on the transmission seat ring, can be along transmission seat ring circumference embed, towards the uniform small magnetic rod of standstill seal ring, under the effect of the power of pretightening force parts, standstill seal ring and rotary seal ring fit tightly, and strengthen protecting sealing effect.Said elastic floating ring can be airtight cavity corrugated tube.
Advantage of the present utility model and effect: friction of rest ring, elastic floating ring and gland ring closely link into an integrated entity at axial direction, and be fastenedly connected the formation stationary part with apparatus casing (end cap or casing), do not contact with rotatingshaft, friction of rest ring and gland ring keep certain radial clearance, by the precompression of the elastic floating ring that links to each other, form and fit tightly with the pivoting friction ring and the applying power of slide relative.When the pivoting friction ring follows rotatingshaft closely and does motion that string moves, beats, the elastic floating ring that links to each other with the static friction seal ring, can support the motion of disturbing property of static friction ring, and the forward and backward applying that can support the static friction ring to follow the pivoting friction ring is moved, promptly insensitive to axial motion, circular runout,, not high to equipment precision requirement, applied widely for the overwhelming majority in, good sealing effect strong, its axial arrangement compactness with the machinery applicability; The kinetic friction ring is closely packed into vertically and is formed one in the transmission seat ring and form rotating part and closely cooperate with rotatingshaft, its axial arrangement compactness, and Applicable temperature, linear velocity height, and the life-span is long, the sealing reliability height.
Description of drawings
Fig. 1 is the utility model general structure schematic representation;
Fig. 2 is the stationary part structural representation in the utility model;
Fig. 3 is the rotating part structural representation in the utility model.
Embodiment
Referring to Fig. 1, standstill seal ring 3 elastic floating rings 2 and gland ring 1 closely linked into an integrated entity by fastening piece 7 successively and be closely connected with equipment end cap or casing at axial direction to be constituted stationary part and not to contact with rotatingshaft.Said elastic floating ring can be airtight rubber-metal cavity corrugated tube.Rotary seal ring 4 is pressed into to be integral in the transmission seat ring 6 that has axial pre tightening force parts 5 and constitutes the also transfer that closely cooperates of rotating part and rotatingshaft.Under the effect of axial pre tightening force parts 5, standstill seal ring 3 fits tightly with rotary seal ring 4, and slide relative.Axial pre tightening force parts 5 can be along the embedding of transmission seat ring circumference, towards the uniform small magnetic rod of standstill seal ring, under the effect of magnetic force, and standstill seal ring and rotary seal ring close proximity, applying.The axial pre tightening force parts also can be the axle spring power that the rotary seal circulating application is added.
Example is installed: rotating part is pushed axle from axle head upward and with rotatingshaft closely cooperate, its kinetic friction anchor ring is sealed object dorsad, stationary part (its static friction anchor ring is towards sealing substance) is inserted on the axle from axle head, with the friction ring over glaze of the rotating part that has pushed to fitting tightly, the gland ring and the apparatus casing of stationary part is fastenedly connected.Static friction sealing anchor ring and the relative applying of kinetic friction sealing anchor ring, sliding contact and sealing like this, thus the lubricant oil of protection bearing is not revealed and environmental contaminants does not enter casing and damages bearing to casing outside, and realization seals the utilization efficiency of raising bearing.
Claims (3)
1, a kind of bearing protection seal arrangement, be arranged at bearing one side, it is characterized in that being made up of stationary part and rotating part, stationary part comprises that standstill seal ring, elastic floating ring and gland ring closely link into an integrated entity successively at axial direction, have radial clearance between standstill seal ring and the gland ring; Rotating part comprises the rotary seal ring is pressed in the transmission seat ring and is integral, and with the rotatingshaft rotation that closely cooperates, standstill seal ring and rotary seal ring are fitted, between slide relative is arranged.
2, bearing protection seal arrangement according to claim 1 is characterized in that the transmission seat ring is provided with the axial pre tightening force parts, can be along the embedding of transmission seat ring circumference, towards the uniform small magnetic rod of standstill seal ring.
3, bearing protection seal arrangement according to claim 1 and 2 is characterized in that said elastic floating ring can be airtight cavity corrugated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108802 CN2748711Y (en) | 2004-11-16 | 2004-11-16 | Bearing protection sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420108802 CN2748711Y (en) | 2004-11-16 | 2004-11-16 | Bearing protection sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748711Y true CN2748711Y (en) | 2005-12-28 |
Family
ID=35720202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420108802 Expired - Lifetime CN2748711Y (en) | 2004-11-16 | 2004-11-16 | Bearing protection sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748711Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008025220A1 (en) * | 2006-08-24 | 2008-03-06 | Aig Industrial Group | Double-ring split bearing protector |
-
2004
- 2004-11-16 CN CN 200420108802 patent/CN2748711Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008025220A1 (en) * | 2006-08-24 | 2008-03-06 | Aig Industrial Group | Double-ring split bearing protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141116 Granted publication date: 20051228 |