CN108397482A - A kind of large size bearing sealing device - Google Patents
A kind of large size bearing sealing device Download PDFInfo
- Publication number
- CN108397482A CN108397482A CN201810297820.XA CN201810297820A CN108397482A CN 108397482 A CN108397482 A CN 108397482A CN 201810297820 A CN201810297820 A CN 201810297820A CN 108397482 A CN108397482 A CN 108397482A
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- China
- Prior art keywords
- ring
- inner frame
- bearing
- sealing lip
- outer ring
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 131
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 10
- 238000002474 experimental method Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 20
- 239000004519 grease Substances 0.000 description 16
- 239000000314 lubricant Substances 0.000 description 16
- 238000005461 lubrication Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/80—Labyrinth sealings
- F16C33/805—Labyrinth sealings in addition to other sealings, e.g. dirt guards to protect sealings with sealing lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/20—Application independent of particular apparatuses related to type of movement
- F16C2300/22—High-speed rotation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a kind of large size bearing sealing devices, including the outer skeleton being fixed on bearing outer ring, the inner frame that is fixed on bearing inner race seal receptacle and the labyrinth type rubber seal between inner frame and outer skeleton；Inner frame includes inner frame inner ring and inner frame outer ring, and the width of inner frame outer ring is less than the width of inner frame inner ring；One end of outer skeleton is fixedly connected with the inner peripheral surface of bearing outer ring, the other end of outer skeleton, which is stretched into, to be formed by by inner frame inner ring, support ring and inner frame outer ring in cavity, labyrinth type rubber seal includes water retaining cover, upper sealing lip and lower sealing lip, the first labyrinth chamber is surrounded between water retaining cover, inner frame outer ring and upper sealing lip, and the second labyrinth chamber is surrounded between lower sealing lip, sealing tooth socket and inner frame inner ring.The sealing device can reach to inner oil seal, externally dust-proof, and sealing and dustproof effect is good, and through experiment, its linear velocity can reach at least 12m/s when use, and physical life can be at least up to 5000h.
Description
Technical field
The present invention relates to the technical field of sealing technology of bearing, especially a kind of large size bearing sealing device.
Background technology
Bearing during the motion, necessarily leads to relative motion, such movable body between bearing internal external circle and rolling element
Between will generate friction, consume a part of mechanical energy, cause between Internal and external cycle and rolling element generate heat, wear.It rubs to reduce
Resistance is wiped, slows down the rate of wear of bearing and controls the Wen Sheng of bearing, improve the service life of bearing, in the mechanism using bearing
It must take into consideration the lubrication problem of bearing in design, and in order to make bearing keep lubrication, it is necessary to consider the sealing of bearing, it is good
Bearing block sealing can be such that bearing lubrication medium does not reveal, and impurity does not invade inside bearing block, ensures the lubrication of bearing while carrying
High bearing service life simultaneously prevents leakage pollution ring mirror.
Industrial circle (milling train, petroleum machinery, harbour machinery etc.), rail traffic vehicles axle box with etc. large size bearings be
Exposed to work in rugged environment, due to its special working environment, becoming on the sealing quality of bearing, which influences bearing, makes
With an important technology index in service life.Oil sealing or sealing device are used for large size bearing (200mm≤D≤430mm),
Linear velocity rotating speed is usually no more than 8m/s, if exceeding 8m/s, oil sealing increases with rotary shaft contact site moment of friction, aggravates oil sealing
Abrasion and system temperature increase, and reduce the service life of oil sealing and mechanical device.Therefore it provides a kind of favorable sealing property
Large size bearing is a problem to be solved with sealing device.
Invention content
To solve problems of the prior art, the object of the present invention is to provide a kind of large size bearing sealing device,
The sealing device can reach to inner oil seal, externally dust-proof, and sealing and dustproof effect is good, through experiment, its linear velocity energy when use
Reach at least 12m/s, and physical life can be at least up to 5000h.
To achieve the above object, the technical solution adopted by the present invention is：A kind of large size bearing sealing device, including fixation
Outer skeleton on bearing outer ring, the inner frame being fixed on bearing inner race seal receptacle and set between inner frame and outer skeleton
Labyrinth type rubber seal；The inner frame includes inner frame inner ring and inner frame outer ring, the inner frame inner ring fixing sleeve
It is connected on the outer circumference surface of bearing inner race seal receptacle, which extends outward to form support
Ring, the one end of the support ring far from inner frame inner ring extend to form the inner frame outer ring to close to bearing inner race side, and
The width of the inner frame outer ring is less than the width of inner frame inner ring；The inner peripheral surface of one end and bearing outer ring of the outer skeleton
It is fixedly connected, the other end of outer skeleton is suspension end, which stretches by inner frame inner ring, support ring and inner frame outer ring institute
In the cavity of formation, the labyrinth type rubber seal straight forming is fixed on the suspension end, the labyrinth type rubber seal
Part includes water retaining cover, upper sealing lip and lower sealing lip, and the water retaining cover is set to the outside of the inner frame outer ring, the upper sealing
Lip is set to the inside of inner frame outer ring, and surrounds the first labyrinth chamber between water retaining cover, inner frame outer ring and upper sealing lip, under described
Sealing lip is set to labyrinth type rubber seal close to the bottom of support ring side, the lower sealing lip and the inner frame inner ring mistake
It is full of cooperation, side of the bottom far from support ring of the labyrinth type rubber seal is equipped with multiple sealing tooth sockets, the lower sealing
The second labyrinth chamber is surrounded between lip, sealing tooth socket and inner frame inner ring.
In said program, the inside of bearing outer ring, the seal receptacle of bearing inner race and sealing device composition bearing unit is empty
Between, interference, which connects, when mounted, between the sealing device and bearing outer ring, bearing inner race seal receptacle can increase sealing device assembly
Reliability, at work, the outer skeleton and labyrinth type rubber seal being connect with bearing outer ring are stationary, in-seam for bearing
Frame rotates together with seal receptacle, and outer skeleton can increase the rigidity of sealing, and labyrinth type rubber seal is prevented to be plastically deformed；Gear
The first labyrinth chamber is surrounded between water cover, inner frame outer ring and upper sealing lip three parts, when which works, inner frame outer ring
High speed rotation, forms pressure drop between the first labyrinth chamber and external environment, the labyrinth channel of the first labyrinth chamber and pressure drop are common
Prevent external foreign matter (dust, moisture etc.) from entering Bearing inner；Lower sealing lip, multiple sealing tooth sockets and inner frame inner ring three parts
Between surround the second labyrinth chamber, multiple sealing tooth sockets increase the resistances of lubricant grease leakage flow in the second labyrinth chamber, make to make
The pressure difference leaked at lubricant grease is drastically lost, and when the pressure difference at the second labyrinth chamber both ends is zero, can effectively seal profit
Lubricating oil fat prevents its leakage, specifically when assembling, a certain amount of lubricant grease is first injected in the second labyrinth chamber, first, can subtract
The initial starting moment of the small sealing device prevents second is that can make lower sealing lip and rotary shaft stable oil film formed here
The flowing of lubricant grease here, can reach the purpose of internal oil sealing；It is interference fitted between lower sealing lip and inner frame inner ring, meeting
Certain radial load is generated, to compensate the bias of rotary shaft.
As a further improvement on the present invention, with angle between the lower sealing lip and the inner frame inner ring, and under
The contact site of sealing lip and inner frame inner ring is horn structure.Between lower sealing lip and inner frame inner ring using such structure into
Row setting, can be such that the radial load that lower sealing lip generates is distributed in pointed shape, be conducive to reduce frictional heat and stablize lubricating oil film.
As a further improvement on the present invention, the described one end of inner frame inner ring far from support ring extends outward to form gear
Ring, and there is gap between the baffle ring and the labyrinth type rubber seal.Have between baffle ring and labyrinth type rubber seal
There is gap, the inside and outside oil sealing interference caused by influencing of the end-play, radial disbalance and dimensional discrepancy to eliminate bearing.
As a further improvement on the present invention, the side of the labyrinth type rubber seal far from water retaining cover is equipped with gear oil
Cover, and the oil blocking cover extends to the outside of the baffle ring.Oil blocking cover can prevent bearing at work, be distributed in bearing both ends
Lubricant grease is directly entered the second labyrinth chamber.
As a further improvement on the present invention, the lower sealing lip and the interference volume of inner frame inner ring interference fit are
0.1mm-0.3mm.The interference volume answers value suitable, if interference volume is too small to influence its sealing effect, if interference volume is too big,
The lower sealing lip of labyrinth type rubber seal is contacted with inner frame inner ring to be occurred to will appear joule heating effect when relative displacement and add
The aging and abrasion of fast labyrinth type rubber seal, through experiment, the interference volume of lower sealing lip and inner frame inner ring interference fit is
It is most suitable when 0.1mm-0.3mm, adapt to the high speed rotation of bearing.
As a further improvement on the present invention, the outer skeleton and the end of bearing outer ring connecting pin are equipped with protrusion.Outside
Protrusion is set on skeleton, while matched groove is set on bearing outer ring inner peripheral surface, protrusion is used cooperatively with groove
It is locked, prevents sealing device from deviating from use.
As a further improvement on the present invention, the number of the sealing tooth socket is 2-3.When 2-3 sealing tooth socket of setting
When, the effect of prevention lubricant grease leakage flow can be made to reach best.
The beneficial effects of the invention are as follows：
1, in the present invention, the fan of the first labyrinth chamber surrounded between water retaining cover, inner frame outer ring and upper sealing lip three parts
Palace channel and pressure drop prevent external foreign matter (dust, moisture etc.) from entering Bearing inner, lower sealing lip, multiple sealing tooth sockets jointly
The second labyrinth chamber surrounded between inner frame inner ring three parts can effectively seal the lubricant grease in bearing, prevent its leakage,
And sealing and dustproof effect is good, through experiment, its linear velocity can reach at least 12m/s when use, and physical life can be at least up to
5000h。
2, there is angle, and the contact site of lower sealing lip and inner frame inner ring is point between lower sealing lip and inner frame inner ring
Corner structure is configured, and the radial load that lower sealing lip generates can be made to be distributed in pointed shape, is conducive to reduce frictional heat and is stablized profit
Lubricating oil film.
3, there is gap, to eliminate end-play, the radial disbalance of bearing between baffle ring and labyrinth type rubber seal
And inside and outside oil sealing interference caused by dimensional discrepancy influence.
4, the oil blocking cover of side of the labyrinth type rubber seal far from water retaining cover can prevent bearing at work, be distributed in axis
The lubricant grease for holding both ends is directly entered the second labyrinth chamber.
5, lower sealing lip and the interference volume of inner frame inner ring interference fit are 0.1mm-0.3mm, adapt to the high speed of bearing
Rotation.
6, protrusion on outer skeleton is set, while matched groove is set on bearing outer ring inner peripheral surface, protrusion
With groove with the use of being locked, prevent sealing device from deviating from use.
7,2-3 sealing tooth socket is set, the effect of prevention lubricant grease leakage flow can be made to reach best.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is partial structural diagram when sealing device provided in an embodiment of the present invention is assemblied on bearing；
Reference numeral：
1, bearing outer ring, 2, outer skeleton, 3, bearing inner race, 4, seal receptacle, 5, inner frame, 6, labyrinth type rubber seal,
7, inner frame inner ring, 8, inner frame outer ring, 9, support ring, 10, water retaining cover, 11, upper sealing lip, 12, lower sealing lip, 13, first
Labyrinth chamber, 14, sealing tooth socket, the 15, second labyrinth chamber, 16, baffle ring, 17, oil blocking cover, 18, protrusion.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment
In one of the embodiments, as shown in Figure 1 and Figure 2, a kind of large size bearing sealing device, including it is fixed on axis
Outer skeleton 2 on bearing outer-ring 1, the inner frame 5 being fixed on 3 seal receptacle 4 of bearing inner race and it is set to inner frame 5 and outer skeleton 2
Between labyrinth type rubber seal 6；The inner frame 5 includes inner frame inner ring 7 and inner frame outer ring 8, in the inner frame
Circle 7 is fixedly attached on the outer circumference surface of 3 seal receptacle 4 of bearing inner race, the one end of the inner frame inner ring 7 far from bearing inner race 3 to
Outer to extend to form support ring 9, the one end of the support ring 9 far from inner frame inner ring 7 is extended to form to close to 3 side of bearing inner race
The inner frame outer ring 8, and the width of the inner frame outer ring 8 is less than the width of inner frame inner ring 7；The one of the outer skeleton 2
End is fixedly connected with the inner peripheral surface of bearing outer ring 1, and the other end of outer skeleton 2 is suspension end, which stretches by inner frame
Inner ring 7, support ring 9 and inner frame outer ring 8 are formed by cavity, and 6 straight forming of labyrinth type rubber seal is fixed on
On the suspension end, which includes water retaining cover 10, upper sealing lip 11 and lower sealing lip 12, the water blocking
Cover 10 be set to the inner frame outer ring 8 outsides, the upper sealing lip 11 be set to inner frame outer ring 8 inside, and water retaining cover 10,
The first labyrinth chamber 13 is surrounded between inner frame outer ring 8 and upper sealing lip 11, the lower sealing lip 12 is set to labyrinth type rubber seal
Part 6 is interference fitted close to the bottom of 9 side of support ring, the lower sealing lip 12 with the inner frame inner ring 7, the labyrinth type rubber
Side of the bottom of glue sealing element 6 far from support ring 9 is equipped with multiple sealing tooth sockets 14, the lower sealing lip 12, sealing tooth socket 14
The second labyrinth chamber 15 is surrounded between inner frame inner ring 7.
In said program, bearing outer ring 1, the seal receptacle 4 of bearing inner race 3 and the sealing device form the inside of bearing unit
Space, interference connection, which can increase, when mounted, between the sealing device and bearing outer ring 1,3 seal receptacle 4 of bearing inner race seals dress
The reliability of assembly is set, at work, the outer skeleton 2 and labyrinth type rubber seal 6 being connect with bearing outer ring 1 are static for bearing
Motionless, inner frame 5 rotates together with seal receptacle 4, and outer skeleton 2 can increase the rigidity of sealing, prevents labyrinth type rubber seal 6 from sending out
Raw plastic deformation；The first labyrinth chamber 13, the sealing are surrounded between 11 three parts of water retaining cover 10, inner frame outer ring 8 and upper sealing lip
When device works, 8 high speed rotation of inner frame outer ring forms pressure drop, the first labyrinth between the first labyrinth chamber 13 and external environment
The labyrinth channel of chamber 13 and pressure drop prevent external foreign matter (dust, moisture etc.) from entering Bearing inner jointly；It is lower sealing lip 12, more
The second labyrinth chamber 15 is surrounded between a sealing tooth socket 14 and 7 three parts of inner frame inner ring, multiple sealing tooth sockets 14 are in the second labyrinth
The resistance for increasing lubricant grease leakage flow in chamber 15, makes the pressure difference for causing lubricant grease to leak drastically lose, as the second fan
When the pressure difference at 15 both ends of uterine cavity is zero, lubricant grease can be effectively sealed, prevents its leakage, specifically when assembling, first second
A certain amount of lubricant grease of injection in labyrinth chamber 15, first, the initial starting moment of the sealing device can be reduced, second is that can be with
Make lower sealing lip 12 and rotary shaft stable oil film formed here, prevents the flowing of lubricant grease here, can reach internal envelope
The purpose of oil；It is interference fitted between lower sealing lip 12 and inner frame inner ring 7, will produce certain radial load, to compensate rotation
The bias of axis.
In another embodiment, between the lower sealing lip 12 and the inner frame inner ring 7 have angle, and under it is close
The contact site for sealing lip 12 and inner frame inner ring 7 is horn structure.Such knot is used between lower sealing lip 12 and inner frame inner ring 7
Structure is configured, and the radial load that lower sealing lip 12 generates can be made to be distributed in pointed shape, is conducive to reduce frictional heat and is stablized lubrication
Oil film.
In another embodiment, the described one end of inner frame inner ring 7 far from support ring 9 extends outward to form baffle ring
16, and there is gap between the baffle ring 16 and the labyrinth type rubber seal 6.Baffle ring 16 and labyrinth type rubber seal 6
Between there is gap, inside and outside oil sealing caused by the end-play, radial disbalance and dimensional discrepancy to eliminate bearing influence is dry
It relates to.
In another embodiment, the side of the labyrinth type rubber seal 6 far from water retaining cover 10 is equipped with oil blocking cover
17, and the oil blocking cover 17 extends to the outside of the baffle ring 16.Oil blocking cover 17 can prevent bearing at work, be distributed in bearing
The lubricant grease at both ends is directly entered the second labyrinth chamber 15.
In another embodiment, the lower sealing lip 12 and the interference volume of the inner frame inner ring 7 interference fit are
0.2mm。
In another embodiment, the lower sealing lip 12 and the interference volume of the inner frame inner ring 7 interference fit are
0.1mm。
In another embodiment, the lower sealing lip 12 and the interference volume of the inner frame inner ring 7 interference fit are
0.3mm。
The interference volume answers value suitable, if interference volume is too small to influence its sealing effect, if interference volume is too big, and labyrinth
The lower sealing lip 12 of formula rubber seal 6 is contacted with inner frame inner ring 7 to be occurred to will appear joule heating effect when relative displacement and add
The aging and abrasion of fast labyrinth type rubber seal 6, through experiment, the interference of lower sealing lip 12 and the interference fit of inner frame inner ring 7
Amount is most suitable when being 0.1mm-0.3mm, adapts to the high speed rotation of bearing.
In another embodiment, the outer skeleton 2 and the end of 1 connecting pin of bearing outer ring are equipped with protrusion 18.Outside
Protrusion 18 is set on skeleton 2, while matched groove is set on 1 inner peripheral surface of bearing outer ring, protrusion 18 is matched with groove
It closes use to be locked, prevents sealing device from deviating from use.
In another embodiment, the number of the sealing tooth socket 14 is 2.
In another embodiment, the number of the sealing tooth socket 14 is 3.
When 2-3 sealing tooth socket 14 is arranged, the effect of prevention lubricant grease leakage flow can be made to reach best.
Specific implementation mode of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.
Claims (7)
1. a kind of large size bearing sealing device, which is characterized in that including be fixed on bearing outer ring outer skeleton, be fixed on axis
Hold the inner frame on inner ring seal receptacle and the labyrinth type rubber seal between inner frame and outer skeleton；The inner frame
Including inner frame inner ring and inner frame outer ring, the inner frame inner ring is fixedly attached to the outer circumference surface of bearing inner race seal receptacle
On, which extends outward to form support ring, and the support ring is far from inner frame inner ring
One end extend to form the inner frame outer ring to close to bearing inner race side, and the width of the inner frame outer ring is less than in-seam
The width of frame inner ring；One end of the outer skeleton is fixedly connected with the inner peripheral surface of bearing outer ring, and the other end of outer skeleton is outstanding
End is set, which, which stretches into, is formed by by inner frame inner ring, support ring and inner frame outer ring in cavity, the labyrinth type rubber
Sealing element straight forming is fixed on the suspension end, the labyrinth type rubber seal include water retaining cover, upper sealing lip and under it is close
Lip is sealed, the water retaining cover is set to the outside of the inner frame outer ring, and the upper sealing lip is set to the inside of inner frame outer ring, and keeps off
The first labyrinth chamber is surrounded between water cover, inner frame outer ring and upper sealing lip, the lower sealing lip is set to labyrinth type rubber seal
Bottom close to support ring side, the lower sealing lip are interference fitted with the inner frame inner ring, the labyrinth type rubber seal
Side of the bottom of part far from support ring be equipped with multiple sealing tooth sockets, the lower sealing lip, sealing tooth socket and inner frame inner ring it
Between surround the second labyrinth chamber.
2. large size bearing sealing device according to claim 1, which is characterized in that the lower sealing lip and the in-seam
There is angle, and the contact site of lower sealing lip and inner frame inner ring is horn structure between frame inner ring.
3. large size bearing sealing device according to claim 1, which is characterized in that the inner frame inner ring is far from support
One end of ring extends outward to form baffle ring, and has gap between the baffle ring and the labyrinth type rubber seal.
4. large size bearing sealing device according to claim 1 or 3, which is characterized in that the labyrinth type rubber seal
Side of the part far from water retaining cover is equipped with oil blocking cover, and the oil blocking cover extends to the outside of the baffle ring.
5. large size bearing sealing device according to claim 1, which is characterized in that the lower sealing lip and the in-seam
The interference volume of frame inner ring interference fit is 0.1mm-0.3mm.
6. large size bearing sealing device according to claim 1, which is characterized in that the outer skeleton connects with bearing outer ring
The end for connecing end is equipped with protrusion.
7. large size bearing sealing device according to claim 1, which is characterized in that the number of the sealing tooth socket is 2-
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297820.XA CN108397482A (en) | 2018-04-03 | 2018-04-03 | A kind of large size bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297820.XA CN108397482A (en) | 2018-04-03 | 2018-04-03 | A kind of large size bearing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108397482A true CN108397482A (en) | 2018-08-14 |
Family
ID=63099689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297820.XA Pending CN108397482A (en) | 2018-04-03 | 2018-04-03 | A kind of large size bearing sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN108397482A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332311A (en) * | 2019-06-20 | 2019-10-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of assembly method of B shape rubber sealing structure |
| CN110425224A (en) * | 2019-07-19 | 2019-11-08 | 南京航空航天大学 | The bearing seal coil structures of magnetic fluid medium |
| CN114364894A (en) * | 2019-08-16 | 2022-04-15 | 阿母斯替德铁路公司 | Labyrinth seal with interlocking rotor and seal case insert |
| CN114438819A (en) * | 2022-01-28 | 2022-05-06 | 亚太森博(广东)纸业有限公司 | Sizing equipment and sizing roller structure thereof |
| CN114570460A (en) * | 2022-02-23 | 2022-06-03 | 浙江双金机械集团股份有限公司 | Multi-cylinder hydraulic cone crusher composed of pi-shaped rubber ring fixing device and method |
| US11817757B2 (en) | 2018-05-14 | 2023-11-14 | Black & Decker Inc. | Power tool with partition assembly between transmission and motor |
| US11813729B2 (en) | 2018-05-14 | 2023-11-14 | Black & Decker Inc. | Power tool with partition assembly between transmission and motor |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016709A1 (en) * | 2005-04-12 | 2006-10-19 | Schaeffler Kg | Cartridge seal for wheelset bearing, has height-constant axial gap arranged between shorter profile side piece of rotating centrifuge ring of seal support ring and ring surface of fixed elastomer seal of support ring |
| CN101413548A (en) * | 2008-11-26 | 2009-04-22 | 瓦房店轴承集团有限责任公司 | Seal device special for railway bearing |
| CN201582395U (en) * | 2009-12-23 | 2010-09-15 | 斯凯孚密封系统(芜湖)有限公司 | Bearing oil seal for train |
| JP2011153658A (en) * | 2010-01-27 | 2011-08-11 | Nsk Ltd | Sealing device of rolling bearing unit for supporting axle of railway rolling stock |
| CN104061244A (en) * | 2014-06-20 | 2014-09-24 | 宁国市瑞普密封件有限公司 | Novel railway hub bearing labyrinth oil seal |
| CN205918768U (en) * | 2016-06-27 | 2017-02-01 | 舍弗勒技术股份两合公司 | Box-type sealing structure and tapered roller bearing |
| CN106438715A (en) * | 2015-08-07 | 2017-02-22 | 舍弗勒技术股份两合公司 | Sealing structure for bearing |
| CN106481669A (en) * | 2016-12-13 | 2017-03-08 | 福建省永安轴承有限责任公司 | Railway freight-car hub spindle holds sealing ring and the bearing equipped with the sealing ring |
| JP2017150506A (en) * | 2016-02-22 | 2017-08-31 | 日本精工株式会社 | Bearing unit for railroad vehicle |
| CN108591466A (en) * | 2017-12-25 | 2018-09-28 | 中国铁路总公司 | A kind of novel high speed train wheel hub bearing seal device |
| CN208381122U (en) * | 2018-04-03 | 2019-01-15 | 成都天马铁路轴承有限公司 | A kind of large size bearing sealing device |
-
2018
- 2018-04-03 CN CN201810297820.XA patent/CN108397482A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005016709A1 (en) * | 2005-04-12 | 2006-10-19 | Schaeffler Kg | Cartridge seal for wheelset bearing, has height-constant axial gap arranged between shorter profile side piece of rotating centrifuge ring of seal support ring and ring surface of fixed elastomer seal of support ring |
| CN101413548A (en) * | 2008-11-26 | 2009-04-22 | 瓦房店轴承集团有限责任公司 | Seal device special for railway bearing |
| CN201582395U (en) * | 2009-12-23 | 2010-09-15 | 斯凯孚密封系统(芜湖)有限公司 | Bearing oil seal for train |
| JP2011153658A (en) * | 2010-01-27 | 2011-08-11 | Nsk Ltd | Sealing device of rolling bearing unit for supporting axle of railway rolling stock |
| CN104061244A (en) * | 2014-06-20 | 2014-09-24 | 宁国市瑞普密封件有限公司 | Novel railway hub bearing labyrinth oil seal |
| CN106438715A (en) * | 2015-08-07 | 2017-02-22 | 舍弗勒技术股份两合公司 | Sealing structure for bearing |
| JP2017150506A (en) * | 2016-02-22 | 2017-08-31 | 日本精工株式会社 | Bearing unit for railroad vehicle |
| CN205918768U (en) * | 2016-06-27 | 2017-02-01 | 舍弗勒技术股份两合公司 | Box-type sealing structure and tapered roller bearing |
| CN106481669A (en) * | 2016-12-13 | 2017-03-08 | 福建省永安轴承有限责任公司 | Railway freight-car hub spindle holds sealing ring and the bearing equipped with the sealing ring |
| CN108591466A (en) * | 2017-12-25 | 2018-09-28 | 中国铁路总公司 | A kind of novel high speed train wheel hub bearing seal device |
| CN208381122U (en) * | 2018-04-03 | 2019-01-15 | 成都天马铁路轴承有限公司 | A kind of large size bearing sealing device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11817757B2 (en) | 2018-05-14 | 2023-11-14 | Black & Decker Inc. | Power tool with partition assembly between transmission and motor |
| US11813729B2 (en) | 2018-05-14 | 2023-11-14 | Black & Decker Inc. | Power tool with partition assembly between transmission and motor |
| CN110332311A (en) * | 2019-06-20 | 2019-10-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of assembly method of B shape rubber sealing structure |
| CN110332311B (en) * | 2019-06-20 | 2020-04-24 | 中国航发贵州黎阳航空动力有限公司 | Assembling method of B-shaped rubber sealing structure |
| CN110425224A (en) * | 2019-07-19 | 2019-11-08 | 南京航空航天大学 | The bearing seal coil structures of magnetic fluid medium |
| CN114364894A (en) * | 2019-08-16 | 2022-04-15 | 阿母斯替德铁路公司 | Labyrinth seal with interlocking rotor and seal case insert |
| CN114364894B (en) * | 2019-08-16 | 2024-04-02 | 阿母斯替德铁路公司 | Labyrinth seal with interlocking rotor and seal case insert |
| CN114438819A (en) * | 2022-01-28 | 2022-05-06 | 亚太森博(广东)纸业有限公司 | Sizing equipment and sizing roller structure thereof |
| CN114438819B (en) * | 2022-01-28 | 2024-04-30 | 亚太森博(广东)纸业有限公司 | Gluing equipment and gluing roller structure thereof |
| CN114570460A (en) * | 2022-02-23 | 2022-06-03 | 浙江双金机械集团股份有限公司 | Multi-cylinder hydraulic cone crusher composed of pi-shaped rubber ring fixing device and method |
| CN114570460B (en) * | 2022-02-23 | 2023-12-22 | 浙江双金机械集团股份有限公司 | Multi-cylinder hydraulic cone crusher formed by pi-shaped rubber ring fixing device and method |
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Application publication date: 20180814 |