CN201277267Y - Sealing check ring and deep groove ball bearing employing the same - Google Patents
Sealing check ring and deep groove ball bearing employing the same Download PDFInfo
- Publication number
- CN201277267Y CN201277267Y CNU2008201332080U CN200820133208U CN201277267Y CN 201277267 Y CN201277267 Y CN 201277267Y CN U2008201332080 U CNU2008201332080 U CN U2008201332080U CN 200820133208 U CN200820133208 U CN 200820133208U CN 201277267 Y CN201277267 Y CN 201277267Y
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- China
- Prior art keywords
- ring
- lip
- bearing
- deep groove
- groove ball
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Abstract
The utility model discloses a seal retainer ring, which comprises a ring-shaped frame and a ring-shaped elastic seal ring, wherein the inner side of the outer edge of the ring-shaped elastic seal ring is provided with a ring-shaped groove which is matched with the ring-shaped frame, the ring-shaped frame is arranged in the ring-shaped groove, and the inner edge of the ring-shaped elastic seal ring is provided with a first lip and a second lip. The outer edge of the ring-shaped seal retainer ring is fixedly mounted on the outer circle of a bearing, the inner edge of the ring-shaped seal retainer ring is corresponding to the inner circle of the bearing, the first lip and the ring-shaped cavetto angle on the inner circle of the bearing form contact-property seal fit, and the second lip and the inner circle of the bearing form clearance fit. The seal retainer ring can effectively prevent internal lubricating grease from leaking, prevent external lubricating grease from permeating, and prevent external dust from invading when a deep groove bearing is rotated in high speed. The utility model further discloses a deep groove ball bearing which adopts the seal retainer ring.
Description
Technical field
The utility model relates to the bearing seal technical field, relates in particular to the deep groove ball bearing that a kind of Sealing shield ring and employing sealing back-up ring seal.
Background technique
Deep groove ball bearing is to use maximum a kind ofly in the bearing, and they generally only bear load radially, can only bear axial load seldom, but can bear high rotating speed.Reciprocating engine generally adopts lubricating grease to be lubricated with deep groove ball bearing, because its working state generally is to run up, so the loading of lubricating grease be generally the bearing housing space 1/3 or still less, if the amount of lubricating grease is too much, owing to stir heating, can make lubricating grease deterioration or softening, make lubricating grease lose efficacy, and then influence the proper functioning of bearing.In the process of running up, external lubrication fat is easy to infiltrate bearing inside under the effect of extraneous impact force, makes that the amount of bearing internal lubrication fat is too much, influences the deep groove ball bearing proper functioning.Therefore, in order to prevent that external lubrication fat from infiltrating deep groove ball bearing inside, simultaneously in order to prevent the intrusion with external dust, moisture of gushing of lubricating grease, reciprocating engine must have the suitable seal device with deep groove ball bearing, to guarantee good lubricating condition and working environment normally.
In the prior art, run up, adopt the lubricating grease sealing configuration that deep groove ball bearing adopted that be lubricated, higher to seal request, mainly contain following two kinds.
A kind of is the shelves limit that is extruded with the dustproof reticulate pattern of band at the two ends of the inner ring of deep groove ball bearing.But because this band dust-tight shelves limit can't eliminate the gap that exists between inner ring and the outer ring, therefore be difficult to eliminate dust and enter in the raceway, cause raceway to block and be stuck; Lubricating grease in the raceway can run off in the gap, deep groove ball bearing is often generated heat because of lacking fat, even burn; Simultaneously, can't prevent that also external lubrication fat from entering deep groove ball bearing inside, make the amount of deep groove ball bearing internal lubrication fat increase,, can make lubricating grease deterioration or softening, make lubricating grease lose efficacy owing to stir heating.
Another is to adopt the annular resilient seal back-up ring that has the sealing lip line structure.A pair of annular resilient seal back-up ring is individually fixed in the outer ring of deep groove ball bearing, is fitted in slidably on the deep groove ball bearing inner ring external diameter along the contact of sealing lip line in it.The adjacent side of ball is called the inboard in annular resilient seal back-up ring and the deep groove ball bearing, and an other side is called the outside.The interior of described annular resilient seal back-up ring forms the interference fit of slight interference amount along sealing lip line and inner ring external diameter, and then realizes the sealing to bearing inner race.Though this sealing configuration can effectively prevent dust and enter in the bearing and eliminate the obstruction of raceway, and is very little for the infiltration effect of the excessive and external lubrication fat that prevents the lubricating grease in the raceway.This mainly be because: when the lubricating grease of raceway inside along the sideslip of elastic seal ring during to inner ring, exist the fluid dynamic high pressure that produces when inner ring and elastic packing back-up ring are done relative movement in both contacting points, when the fluid dynamic high pressure overcomes the pretightening force of sealing lip line generation, can form the leakage of lubricating grease or the infiltration of external lubrication fat thus between sealing lip and bearing, external lubrication fat also infiltrates deep groove ball bearing inside easily under the effect of extraneous impact force simultaneously.
The model utility content
At deep groove ball bearing bearing in the present technology when running up, external lubrication fat infiltrates deep groove ball bearing inside and the easy shortcoming of revealing of internal lubrication fat, the deep groove ball bearing that the utility model provides a kind of Sealing shield ring and employing sealing back-up ring to seal easily.
A kind of deep groove ball bearing Sealing shield ring comprises cyclic skeleton and annular resilient seal circle; The inner side surface of described annular resilient seal circle is provided with the annular groove that matches with the outer and the interior edge of cyclic skeleton, and described annular resilient seal circle entangles described cyclic skeleton by this annular groove; The interior of described annular resilient seal circle is provided with first lip along outer side surface, this first lip to the annular resilient seal circle ring heart, lateral direction is oblique stretches out, the ring-type concave arc shape dihedral on the inner ring of its inner side surface and the zanjon bearing that will seal becomes to paste the property touched and is sealed and matched; Described second lip is positioned at described annular resilient seal circle along inner side surface, tilt to stretch out to the annular resilient seal circle ring heart, interior side direction, its outer side surface forms towards annular resilient seal circle outer, the annular conical surface of inboard, and edge can form Spielpassung with the inner ring of the deep groove ball bearing that will seal in it.
Preferably, the undersized of described annular groove is in the size of cyclic skeleton.
Preferably, described first lip is convex, and its length will be longer than described second lip.
A kind of deep groove ball bearing that adopts above-mentioned deep groove ball bearing to seal with Sealing shield ring, comprise bearing inner race, bearing outer ring, ball, retainer, the bearing inner race end is provided with ring-type concave arc shape angle, the bearing outer ring end is provided with annular recess, the outer portion of described Sealing shield ring is fixed in the described annular recess, the described first lip inner side surface becomes to paste the property touched with described ring-type concave arc shape dihedral and is sealed and matched, and the edge forms Spielpassung with described bearing inner race in second lip.
Preferably, form a cavity between edge and the described bearing inner race in the described first lip inner side surface, described second lip.
When running up, external lubrication fat infiltrates deep groove ball bearing inside and the easy shortcoming of revealing of internal lubrication fat to the utility model easily, and a kind of Sealing shield ring is provided at deep groove ball bearing in the present technology.The sealing back-up ring comprises cyclic skeleton and annular resilient seal circle; The inner side surface of described annular resilient seal circle is provided with the annular groove that matches with the outer and the interior edge of cyclic skeleton, and described annular resilient seal circle entangles described cyclic skeleton by this annular groove; The interior of described annular resilient seal circle is provided with first lip along outer side surface, this first lip to the annular resilient seal circle ring heart, lateral direction is oblique stretches out, the ring-type concave arc shape dihedral on the inner ring of its inner side surface and the zanjon bearing that will seal becomes to paste the property touched and is sealed and matched; Described second lip is positioned at described annular resilient seal circle along inner side surface, tilt to stretch out to the annular resilient seal circle ring heart, interior side direction, its outer side surface forms the annular conical surface towards annular resilient seal circle outer, inner side surface, and edge can form Spielpassung with the inner ring of the deep groove ball bearing that will seal in it.The outer of described annular seal back-up ring is fixedly mounted on the outer ring of deep groove ball bearing, and the interior edge of described annular seal back-up ring is corresponding with bearing inner race.This structure can effectively overcome fluid dynamic high pressure and the foreign impacts power that produces when elastic packing back-up ring and bearing inner race are done relative movement.Because first lip and inner ring fit tightly, the unlikely leakage of internal lubrication fat, the outside also unlikely infiltration deep groove ball bearing of lubricating grease inside; The tilted conical surface of the second lip outer then can carry out water conservancy diversion to the lubricating grease that is got rid of on Sealing shield ring, and it is flowed back in the ball road.
The utility model also provides a kind of deep groove ball bearing that adopts above-mentioned Sealing shield ring to seal, this deep groove ball bearing comprises bearing outer ring, bearing inner race, ball, retainer, end at described bearing outer ring is provided with annular recess, be provided with ring-type concave arc shape angle in the end of described bearing inner race, the outer of above-mentioned annular seal back-up ring is fixedly mounted in the annular recess of bearing outer ring, the interior edge of above-mentioned annular seal back-up ring is corresponding with inner ring, ring-type concave arc shape dihedral on the above-mentioned first lip inner side surface and the bearing inner race becomes to paste the property touched and is sealed and matched, the outer of second lip and the inner ring of deep groove ball bearing formation Spielpassung.Owing to be provided with ring-type concave arc shape angle at the two end part of inner ring, this ring-type concave arc shape angle can form be pasted the property touched with the annular seal back-up ring and is sealed and matched, and this structure can effectively overcome fluid dynamic high pressure and the foreign impacts power that produces when elastic packing back-up ring and inner ring are done relative movement.Because first lip and inner ring fit tightly, the unlikely leakage of internal lubrication fat, the outside also unlikely infiltration deep groove ball bearing of lubricating grease inside; The tilted conical surface of the second lip outer then can carry out water conservancy diversion to the lubricating grease that is got rid of on Sealing shield ring, and it is flowed back in the ball road, can play good sealing effect.
Description of drawings
The anchor ring sectional view of the Sealing shield ring that Fig. 1 provides for the utility model;
Fig. 2 is the sealed structural representation of deep groove ball bearing of the present utility model;
The deep groove ball bearing that Fig. 3 provides for the utility model;
The inner ring schematic representation of the deep groove ball bearing that Fig. 4 provides for the utility model;
The schematic representation of annular recess on the outer ring of the deep groove ball bearing that Fig. 5 provides for the utility model;
Wherein among Fig. 1-Fig. 4:
The 1-bearing outer ring, the 101-annular recess;
The 2-Sealing shield ring, 210-skeleton, 220-annular resilient seal circle, 221-first lip, 222-second lip, 223-annular groove;
The 3-ball;
The 4-bearing inner race, 401-ring-type concave arc shape angle;
The 5-retainer.
Embodiment
The utility model at deep groove ball bearing in the present technology when running up, external lubrication fat infiltrates deep groove ball bearing inside and the easy shortcoming of revealing of internal lubrication fat, the deep groove ball bearing that the utility model provides a kind of Sealing shield ring and employing sealing back-up ring to seal easily.
Below in conjunction with accompanying drawing content of the present utility model is described, following description only is exemplary and indicative, should any restriction not arranged to protection domain of the present utility model.
Please referring to Fig. 1, the anchor ring sectional view of the Sealing shield ring that Fig. 1 provides for the utility model.
As shown in Figure 1, the sealing back-up ring comprises cyclic skeleton 210 and annular resilient seal circle 220.Wherein, cyclic skeleton 210 is stamped to form by steel plate, has favorable rigidity and toughness; Annular resilient seal circle 220 is a rubber seal, and annular resilient seal circle 220 comprises first lip 221, second lip 222 and annular groove 223; In the described annular groove 203 cyclic skeleton 210 is housed, the undersized of annular groove 223 is in the size of cyclic skeleton 210, cyclic skeleton 210 can be packed in the annular groove 223 by the elasticity of elastic seal ring 220; The cross section of described first lip 221 is convex and its length obviously is longer than second lip 222; First lip 221 be positioned at annular resilient seal circle 220 along the outside, first lip 221 to the annular resilient seal circle ring heart, lateral direction is oblique stretches out, its inner side surface can become to paste the property touched with the ring-type concave arc shape dihedral on the inner ring of the zanjon bearing that will seal and be sealed and matched; Second lip 222 is positioned at the inboard, edge of annular resilient seal circle 220, tilt to stretch out to the annular resilient seal circle ring heart, interior side direction, its outer side surface forms towards annular resilient seal circle outer, the annular conical surface of inboard, and edge can form Spielpassung with the inner ring of the deep groove ball bearing that will seal in it.
Below introduce the sealing mechanism of sealing back-up ring.
Please referring to Fig. 2, the sealed structural representation of the deep groove ball bearing that Fig. 2 provides for the utility model.
As shown in Figure 2, the outer of Sealing shield ring 2 is fixed in the annular recess 101 of bearing outer ring 1, interior along corresponding with bearing inner race 4, ring-type concave arc shape angle 401 on the inner side surface of first lip 221 and the bearing inner race 4 forms the subsides property touched and is sealed and matched, the interior edge of second lip 222 forms Spielpassung with bearing inner race 4, and the interior edge of the inner side surface of first lip 221, second lip 222 and bearing inner race 4 form a cavity.This structure can overcome bearing inner race 4 and make fluid dynamic high pressure and the extraneous impact force that relative movement produces with Sealing shield ring 2, simultaneously because first lip 221 is fitted with the ring-type concave arc shape angle 401 on the bearing inner race 4 and fitting area is bigger, there is very strong applying power, therefore under the effect of first lip 221, external dust can't enter bearing inside, external lubrication fat also can't infiltrate bearing inside.When deep groove ball bearing runs up, lubricating grease in the ball road will be thrown out of raceway, make the lubricating grease in the raceway constantly reduce, under the effect of second lip 222, the lubricating grease that is thrown on the Sealing shield ring 2 will flow down along the tilted conical surface of second lip, 222 outers, and major part will flow back in the ball road, and small part will flow in the cavity, and under the seal action of first lip 221, the lubricating grease that accumulates in the cavity is no longer outwards revealed.
Below introduce the advantage of sealing back-up ring.
The Sealing shield ring that the utility model provides, ring-type concave arc shape angle 401 on the inner side surface of first lip 221 and the bearing inner race 4 forms the subsides property touched and is sealed and matched, the interior edge of second lip 222 forms Spielpassung with bearing inner race 4, can better overcome inner ring 4 like this and make fluid dynamic high pressure and the extraneous impact force that relative movement produces with Sealing shield ring 2, first lip 221 is designed to convex and lip is longer, such first lip 221 is bigger with the fitting area of bearing inner race 4, sealing effect is better, even deep groove ball bearing is when running up, good protective action is played to deep groove ball bearing in outside lubricating grease deep groove ball bearing extremely difficult to get access inside; The interior edge of second lip 222 is parallel with the bearing inner race 4 of the deep groove ball bearing that will seal, form Spielpassung with the inner ring 4 of deep groove ball bearing, lubricating grease major part in the deep groove ball bearing flows back in the ball road along the outer tilted conical surface of second lip 222 like this, fraction flows in the cavity, under the seal action of first lip 221, the lubricating grease in the cavity is no longer outwards revealed.Under the effect of first lip 221, external dust deep groove ball bearing extremely difficult to get access inside also has the good dust-proof effect.
The utility model also provides a kind of deep groove ball bearing that adopts above-mentioned Sealing shield ring to seal.Please referring to Fig. 3, the deep groove ball bearing that Fig. 3 provides for the utility model.
As shown in Figure 3, this deep groove ball bearing comprises bearing outer ring 1, ball 3, bearing inner race 4, retainer 5.As shown in Figure 4, in an end end of bearing inner race 4 ring-type concave arc shape angle 401 is set; As shown in Figure 5, in the end of an end of bearing outer ring 1 annular recess 101 is set.The Sealing shield ring that this deep groove ball bearing adopts first embodiment to provide seals.The outer of Sealing shield ring 2 is fixedly mounted in the annular recess 101 of bearing outer ring 1, the interior edge of Sealing shield ring 2 is corresponding with inner ring 4, ring-type concave arc shape angle 401 on the inner side surface of first lip 221 and the bearing inner race 4 fits tightly, forming the subsides property touched is sealed and matched, edge and bearing inner race 4 Spielpassung in second lip 222 of Sealing shield ring, the interior edge of the inner side surface of first lip 221, second lip 222 and bearing inner race 4 form a cavity.
Ring-type concave arc shape angle 401 on the inner side surface of first lip 221 and the bearing inner race 4 forms the subsides property touched and is sealed and matched, the interior edge of second lip 222 forms Spielpassung with bearing inner race 4, this structure can overcome bearing inner race 4 and make fluid dynamic high pressure and the extraneous impact force that relative movement produces with elastic packing back-up ring 2, simultaneously because the inner side surface of first lip 221 and bearing inner race 4 are fitted and fitting area is bigger, there is very strong applying power, therefore under the effect of first lip 221, external dust can't enter bearing inside, external lubrication fat also can't infiltrate bearing inside.When deep groove ball bearing runs up, lubricating grease in the ball road will be thrown out of raceway, make the lubricating grease in the raceway constantly reduce, under the effect of second lip 222, the lubricating grease that is thrown on the Sealing shield ring will flow down along the tilted conical surface of second lip, 222 outers, and major part will flow back in the ball road, and small part will flow in the cavity, and under the seal action of first lip 221, the lubricating grease that accumulates in the cavity is no longer outwards revealed.
The foregoing description is to seal at the Sealing shield ring that an end of deep groove ball bearing adopts the utility model to provide, and the situation that the Sealing shield ring that the two ends of deep groove ball bearing all adopts the utility model to provide seals also is provided the utility model.End, two ends in the outer ring of deep groove ball bearing all is provided with annular groove, in the end, two ends of the inner ring of deep groove ball bearing annular concave arc shape angle is set all, and the two ends of deep groove ball bearing all adopt the described Sealing shield ring of first embodiment to seal.Its embodiment is similar to the above embodiments, no longer is described in detail at this.
The above only is the description of preferred implementation of the present utility model; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a deep groove ball bearing Sealing shield ring is characterized in that, comprises cyclic skeleton and annular resilient seal circle; The inner side surface of described annular resilient seal circle is provided with the annular groove that matches with the outer and the interior edge of cyclic skeleton, and described annular resilient seal circle entangles described cyclic skeleton by this annular groove; The interior of described annular resilient seal circle is provided with first lip along outer side surface, this first lip to the annular resilient seal circle ring heart, lateral direction is oblique stretches out, the ring-type concave arc shape dihedral on the inner ring of its inner side surface and the zanjon bearing that will seal becomes to paste the property touched and is sealed and matched; Described second lip is positioned at described annular resilient seal circle along inner side surface, tilt to stretch out to the annular resilient seal circle ring heart, interior side direction, its outer side surface forms towards annular resilient seal circle outer, the annular conical surface of inboard, and edge can form Spielpassung with the inner ring of the deep groove ball bearing that will seal in it.
2. deep groove ball bearing Sealing shield ring according to claim 1 is characterized in that the undersized of described annular groove is in the size of cyclic skeleton.
3. deep groove ball bearing Sealing shield ring according to claim 2 is characterized in that, described first lip is convex, and its length will be longer than described second lip.
4. deep groove ball bearing that adopts each described deep groove ball bearing of claim 1-3 to seal with Sealing shield ring, comprise bearing inner race, bearing outer ring, ball, retainer, it is characterized in that, the bearing inner race end is provided with ring-type concave arc shape angle, the bearing outer ring end is provided with annular recess, the outer of described Sealing shield ring is fixed in the described annular recess, the described first lip inner side surface becomes to paste the property touched with described ring-type concave arc shape dihedral and is sealed and matched, and the edge forms Spielpassung with described bearing inner race in second lip.
5. deep groove ball bearing according to claim 4 is characterized in that, forms a cavity in the described first lip inner side surface, described second lip between edge and the described bearing inner race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201332080U CN201277267Y (en) | 2008-08-22 | 2008-08-22 | Sealing check ring and deep groove ball bearing employing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201332080U CN201277267Y (en) | 2008-08-22 | 2008-08-22 | Sealing check ring and deep groove ball bearing employing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277267Y true CN201277267Y (en) | 2009-07-22 |
Family
ID=40894854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201332080U Expired - Fee Related CN201277267Y (en) | 2008-08-22 | 2008-08-22 | Sealing check ring and deep groove ball bearing employing the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277267Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006077A (en) * | 2017-12-27 | 2018-05-08 | 哈尔滨轴承集团公司 | A kind of deep groove ball bearing sealing ring |
| CN114776714A (en) * | 2022-04-28 | 2022-07-22 | 洛阳轴承研究所有限公司 | Contact bearing seal structure |
| CN114877181A (en) * | 2022-05-10 | 2022-08-09 | 中国电子科技集团公司第十四研究所 | Rotary support arm capable of realizing rapid maintenance |
-
2008
- 2008-08-22 CN CNU2008201332080U patent/CN201277267Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006077A (en) * | 2017-12-27 | 2018-05-08 | 哈尔滨轴承集团公司 | A kind of deep groove ball bearing sealing ring |
| CN114776714A (en) * | 2022-04-28 | 2022-07-22 | 洛阳轴承研究所有限公司 | Contact bearing seal structure |
| CN114877181A (en) * | 2022-05-10 | 2022-08-09 | 中国电子科技集团公司第十四研究所 | Rotary support arm capable of realizing rapid maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20150822 |
|
| EXPY | Termination of patent right or utility model |