CN107701591A - Lip seal and bearing - Google Patents
Lip seal and bearing Download PDFInfo
- Publication number
- CN107701591A CN107701591A CN201610645596.XA CN201610645596A CN107701591A CN 107701591 A CN107701591 A CN 107701591A CN 201610645596 A CN201610645596 A CN 201610645596A CN 107701591 A CN107701591 A CN 107701591A
- Authority
- CN
- China
- Prior art keywords
- bearing
- contact surface
- lippacking
- recess region
- sealing lip
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 description 18
- 239000003921 oil Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000004610 Internal Lubricant Substances 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000003746 surface roughness 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
-
- 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
- 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
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7813—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for tapered roller bearings
-
- 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
- F16C33/7826—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of the opposing surface cooperating with the seal, e.g. a shoulder surface of a bearing ring
-
- 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
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7859—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
- F16C33/7866—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element 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
- F16C33/7889—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to an inner race and extending toward the outer race
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/36—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
- F16C19/364—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
-
- 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
- F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A kind of lip seal and bearing, wherein the bearing includes the inner race, outer race, locate lip seal between said inner race and said outer race, and the contact surface used for contacting with seal lip of the said lip seal; the contact surface is provided with a plurality of groove areas, each groove area comprises a plurality of grooves, and the groove areas are arranged at intervals along the circumferential direction. The invention can reduce the abrasion of the lip-shaped sealing element by arranging the groove area on the contact surface.
Description
Technical field
The present invention relates to a kind of lippacking and bearing.
Background technology
Existing bearing generally comprises inner ring, outer ring, the rolling element between Internal and external cycle and for supporting rolling element
Retainer.In order to ensure the cleannes of Bearing inner lubricant environment, generally also it is additionally provided with and is located in the axial both sides of bearing
Lippacking between Internal and external cycle, lippacking are generally fixed on the inner ring or outer ring of bearing, for by bearing
Internal lubricant environment, which is isolated from the outside, to come.
In order to obtain good sealing effectiveness, it is generally provided between the sealing lip and contact surface of lippacking certain
The magnitude of interference.So that inner ring is the bearing of turning collar as an example, lippacking is generally fixed on outer ring, and sealing lip can be with inner ring
Outer peripheral face contacts.Wherein, the internal diameter of lippacking is less than the external diameter of inner ring so that and sealing lip can be close on inner ring,
Reach the purpose of sealing.
But in this bearing, it is larger and be worn that sealing lip is typically due to friction torque between contact surface.
The content of the invention
The present invention solves the problems, such as it is in existing bearing, and the sealing lip of lippacking is easily worn.
To solve the above problems, the present invention provides a kind of lippacking, there is sealing lip, the sealing lip, which has, to be used for
Contact surface in sealing contact；The contact surface is provided with some recess regions, and the recess region includes some grooves, Ge Gesuo
State the circumferentially spaced arrangement of recess region.
Optionally, some grooves form some rows circumferentially arranged, and often row has several described grooves.
Optionally, in the recess region, the quantity for the row that some grooves are formed and the quantity of the groove in often row
It is identical.
Optionally, all groove arrangements in the recess region into square, rectangle, parallelogram, polygon or
Person is circular.
Optionally, the institute in often arranging fluted arranges vertically.
The present invention also provides a kind of bearing, including inner ring, outer ring, located at the lippacking of axial end portion, and is used for
The contact surface contacted with the sealing lip of the lippacking；The contact surface is provided with some recess regions, the groove area
Domain includes some grooves, each circumferentially spaced arrangement of recess region.
Optionally, some grooves form some rows circumferentially arranged, and often row has several described grooves.
Optionally, in the recess region, the quantity for the row that some grooves are formed and the quantity of the groove in often row
It is identical.
Optionally, all groove arrangements in the recess region into square, rectangle, parallelogram, polygon or
Person is circular.
Optionally, the institute in often arranging fluted arranges vertically.
Optionally, the contact surface is located at the outer peripheral face of the inner ring or the inner peripheral surface of the outer ring.
Optionally, in addition to disc, it is sheathed on the outer peripheral face of the inner ring or the inner peripheral surface of the outer ring, it is described
Contact surface is located on the disc.
Optionally, the disc has the perisporium being set on corresponding side face and the coaxially connected method in the perisporium
Orchid, at least one in the perisporium, the flange are provided with the contact surface.
Optionally, in addition to bushing, it is sheathed on the outer peripheral face of the inner ring or the inner peripheral surface of the outer ring, the lining
Put and be provided with the contact surface.
Optionally, the lippacking is the lippacking described in any of the above-described.
Compared with prior art, technical scheme has advantages below：
First, the recess region of some circumferentially spaced arrangements is set on the contact surface of lippacking, or in axle
The recess region of some circumferentially spaced arrangements is set on the contact surface contacted with sealing lip held, relative to smooth surface
Speech, groove can store more lubricating oil so that can be formed between sealing lip and the surface for sealing against contact thicker
Oil film, so as to prevent both to be bonded too closely, and then reduce friction torque between the two, reduce the abrasion of sealing lip.
Second, when bearing rotates, can be splash by the lubricating oil of groove, and radial impact is formed to sealing lip
Power, sealing lip is jacked up, and disengaged between the contact surface of bearing, so that being formed between the two " contactless
Sealing ", the friction between sealing lip and contact surface is thus effectively reduced, or even eliminate friction.
Brief description of the drawings
Fig. 1 shows that the bearing further groove region of first embodiment of the invention is arranged on the structure on inner ring；
Fig. 2 shows that the bearing further groove region of second embodiment of the invention is arranged on the structure on disc；
Fig. 3 shows that the bearing further groove region of third embodiment of the invention is arranged on the structure on bushing.
Embodiment
Mentioned in background technology, in existing bearing, the sealing lip of lippacking is typically due between contact surface
Friction torque is larger and is worn.The reason for applicant is by researching and analysing to obtain abrasion, it is specific as follows：
Because Bearing inner is full of lubricating oil, with the rotation of bearing, parts of lubricating oil enters the sealing of lippacking
Between lip and contact surface, and form one layer of oil film.The oil film can provide lubrication between sealing lip and contact surface, and reduction rubs
Wipe.But for bearing, the surface of each part is more smooth, surface roughness (Ra) typically 0.1 μm to 0.6 μm it
Between.And surface is more smooth, store that the ability of grease is weaker, the oil film thus formed between sealing lip and contact surface is thinner, close
Envelope lip and contact surface are bonded closer, cause friction torque between the two bigger.
Therefore, the present invention proposes a kind of lippacking and bearing, by least one in lippacking and bearing
Contact surface on groove is set, more greases are stored by groove, so as to reduce the friction between sealing lip and contact surface, drop
Low friction moment of torsion.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
First embodiment
The present embodiment provides a kind of bearing, shown in reference picture 1, including inner ring 1, outer ring 2, between inner ring 1 and outer ring 2
Rolling element 3, the retainer 4 for supporting rolling element 3, and the lippacking 5 located at axial end portion, and be used for and lip
The contact surface S that the sealing lip 51 of seal 5 contacts.Wherein, bearing can be respectively equipped with lippacking 5 at the both ends of axial direction,
Or only it is provided with lippacking 5 in axial one end.
The sealing lip 51 of lippacking 5 is annular element and coaxial bearing, and sealing lip 51 can be located at lippacking 5
Radially inner side or interior to outside.In general, when lippacking 5 is installed within the bearing, lippacking 5 is radially
Side fix, sealing lip 51 then located at radial direction opposite side and with contact surface S contact.
As shown in figure 1, sealing lip 51 is located at the radially inner side of lippacking 5, contacted with inner ring 1.Inner ring 1, which has, to be used for
The contact surface S contacted with sealing lip 51.Contact surface S is provided with some recess region S1, and recess region S1 includes some grooves, respectively
The individual circumferentially spaced arrangements of recess region S1.
The advantages of this programme, is：
Each groove in first, recess region S1 is recessed on contact surface S, can store more lubricating oil so that
Thicker oil film can be formed between sealing lip and above-mentioned contact surface S, so as to prevent sealing lip and above-mentioned contact surface S to be bonded
In close, and then reduce friction torque between the two, reduce the abrasion of sealing lip.
Second, when bearing rotates, drive the lubricating oil of Bearing inner to rotate in same direction.When lubricating oil passes through groove, with
To hit between groove, and splash in the presence of impact, the flow direction of lubricating oil is changed and rushes at sealing lip 51,
Radial impact force is formed to sealing lip 51.The radial impact force promote sealing lip 51 be directed away from contact surface S direction motion.
That is lubricating oil after recess region S1 is hit, can jack up part corresponding with recess region S1 sealing lip 51 so that should
Disengaged between part sealing lip 51 and contact surface S.Because recess region S1 has multiple and circumferentially arranges, then sealing lip
51 will in circumference by multiple radial impact forces, so as to be jacked up sealing lip 51 is overall from contact surface S, finally with contact surface S
Between form " non-contacting seal ", thus effectively reduce the friction between sealing lip 51 and contact surface S, or even eliminate friction.
3rd, recess region the S1 circumferentially spaced arrangement on contact surface S, according to simulated test, compared to circumferentially cloth
Full contact surface S mode, the radial impact force formed to sealing lip 51 is bigger, can preferably meet the requirement for reducing friction.
In the present embodiment, each circumferentially spaced arrangements of recess region S1, represent have between adjacent recess region S1
" smooth domain " of groove is not set, and smooth domain is circumferentially interspersed with recess region S1.For example, smooth domain should have
Certain circumferential lengths, it is distinguished for two neighboring recess region S1.
It should be appreciated that contact surface S position determines according to the position of the sealing lip 51 of lippacking 5, such as can be with
The inner peripheral surface of outer peripheral face, outer ring 2 positioned at inner ring 1 or other be used for the surface that is contacted with sealing lip 51.In the present embodiment, connect
Contacting surface S is located on the outer peripheral face of inner ring 1.
In the inner ring 1 of bearing, outer ring 2, it is general one of them be turning collar, another is nonrotationally encloses, and lip packing
Part 5 is generally fixed on nonrotational circle, and sealing lip 51 then contacts with turning collar.In embodiment as shown in Figure 1, inner ring 1 is to turn
Moving-coil, sealing lip 51 are located at radially inner side, contacted with inner ring 1, and contact surface S is located on inner ring 1.In other embodiments, if
Outer ring 2 is turning collar, then contact surface S can be located on outer ring 2, while sealing lip 51 is located at radial outside, contacted with outer ring 2.
Further, with continued reference to shown in Fig. 1, some grooves form some rows circumferentially arranged, and often row has several
Groove.
, can be in recess region S1 with the rotation of bearing when groove arrangement is into some rows, and each row circumferentially arranges
Middle formation enrichment effect, so as to increase the radial impact force formed to sealing lip 51, further reduce sealing lip 51 and contact surface S
Between friction.
Wherein, so that the inner ring 1 shown in Fig. 1 is turning collar, contact surface S is located at the outer peripheral face of inner ring 1 as an example, to enrichment effect
Principle be explained as follows：
When bearing rotates, in rotational direction R is rotated and is driven the lubricating oil of Bearing inner to rotate in same direction inner ring 1, due to
The viscosity of lubricating oil, the rotating speed of lubricating oil are less than the rotating speed of inner ring 1, so as to form speed discrepancy between contact surface S.Lubricating oil
Rotated backward relative to contact surface S and inner ring 1.Then：
As shown in figure 1, taking a recess region S1, define：In recess region S1, it is located at along the rotation direction R of bearing
One row's groove of most front side is first row L1, and along the direction away from first row, remaining is followed successively by second row L2, the 3rd row L3 ...,
N-th row Ln.For contact surface S, lubricating oil will flow to the n-th row Ln from first row L1.
When lubricating oil flows through first row L1, lubricating oil is splash so as to produce the first impulsive force of radial direction to sealing lip 51
F1；When lubricating oil flows through second row L2, the first impulsive force F1 is applied to second row L2, simultaneously because second row L2 groove
Effect, lubricating oil is splash and produces the second impulsive force F2 to sealing lip again, therefore at second row L2, sealing lip 51 by
The radial impact force arrived is F1+F2.The like, at the n-th row L, the radial impact force that sealing lip 51 is subject to is F1+F2+F3
+ ...+Fn, so as to.As can be seen here, edge is constantly enriched with from first row L1 to the n-th row Ln direction, impulsive force.Relative to list
For the groove of row, when groove be circumferentially arrange it is multiple rows of when, the radial impact force that sealing lip 51 is subject to is bigger.
Wherein, in recess region S1, the quantity of the quantity for the row that some grooves are formed and the groove in often row can with identical,
It can also differ.Also, in recess region S1 institute it is fluted can be arranged in it is variously-shaped, such as square, rectangle, put down
Row quadrangle, polygon or circle etc..In the axial direction, recess region S1 is to cover the axle shared by the contact surface of sealing lip 51
It is preferred to region.
When the groove in recess region S1 forms multiple rows of, the circumferential lengths of smooth domain should be not less than recess region S1
In adjacent two rows groove spacing distance, to realize the purpose that is spaced apart two neighboring recess region S1.
It should be noted that the orientation of each row's further groove can be with axially in parallel, can also be not parallel (such as with axial direction
Fig. 1).Preferential, the direction of all groove arrangements in often arranging is arranged vertically with axially in parallel.So setting to carry
High recess region S1 enrichment effect, strengthens the impulsive force to sealing lip 51.
It should be noted that in the present embodiment, the species of bearing is unlimited, can also be Fig. 1, Fig. 2, Fig. 3 shown type it
Outer bearing.
Further, on the contact surface of the sealing lip 51 of lippacking 5 some recess regions can also be set (not scheme
Show), the recess region includes some grooves, circumferentially-spaced arrangement of each recess region along sealing lip 51.
Wherein, the arrangement mode of the upper groove region further groove of sealing lip 51 and the recess region in above-mentioned inner ring or outer ring
The arrangement mode of S1 further grooves is identical.
In further embodiments, lippacking 5 can also be other lippackings without recess region.
The present embodiment also provides a kind of lippacking, can also be set on the contact surface of the sealing lip of lippacking
Some recess regions (not shown), the recess region include some grooves, and each recess region is along between the circumference of sealing lip
Every arrangement.
Wherein, the arrangement mode of sealing lip upper groove region further groove and the recess region S1 in above-mentioned inner ring or outer ring
The arrangement mode of further groove is identical.
Second embodiment
The present embodiment provides a kind of bearing, unlike first embodiment, as shown in Fig. 2 the bearing of the present embodiment is also
Including disc 6 (also referred to as oil scraper ring), it is sheathed on the outer peripheral face of inner ring 1 or the inner peripheral surface of outer ring 2, contact surface S, which is located at, to be got rid of
On oil ring 6.
Disc 6 has the perisporium 61 being set on corresponding side face and the coaxially connected flange 62 in perisporium 61, perisporium
61st, at least one in flange 62 is provided with contact surface S, and each contact surface S may be incorporated for and one or more sealing lip
Contact.Recess region S1 then formed perisporium 61, flange 62 contact surface S on.
Wherein, sealed in the seal request and lippacking 5 of contact surface S quantity and the position of setting and bearing
The quantity of lip and position are relevant.Such as Fig. 2, lippacking 5 has multiple sealing lips 51, one of them week with disc 6
Wall 61 contacts, and one contacts with flange 62, therefore on the contact surface S of perisporium 61 and flange 62, can be provided with groove area
Domain S1.Only part recess region S1 is marked in Fig. 2.
In embodiment shown in Fig. 2, in recess region S1, all groove arrangements into square, can so obtain compared with
Good enrichment effect so that larger radial impact force is formed to sealing lip 51 when bearing rotates, so as to reduce sealing lip 51
With the friction between contact surface S.
3rd embodiment
The present embodiment provides a kind of bearing, and reference picture 3, unlike first embodiment, the bearing of the present embodiment also wraps
Bushing 7 is included, is sheathed on the outer peripheral face of inner ring 1 or the inner peripheral surface of outer ring 2, bushing 7 is provided with contact surface S.Lippacking 5
Sealing lip (not marked in figure) and bushing 7 on contact surface S contact.
Recess region S1 is then formed on the contact surface S of bushing 7.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (15)
1. a kind of lippacking, having sealing lip, the sealing lip, which has, is used for contact surface in sealing contact；
Characterized in that, the contact surface is provided with some recess regions, the recess region includes some grooves, each described
The circumferentially spaced arrangement of recess region.
2. lippacking as claimed in claim 1, it is characterised in that some grooves formation circumferentially arrange some
Row, often arranging has several described grooves.
3. lippacking as claimed in claim 2, it is characterised in that in the recess region, some grooves are formed
Row quantity with often arrange in groove quantity it is identical.
4. lippacking as claimed in claim 2 or claim 3, it is characterised in that all groove arrangements in the recess region
Into square, rectangle, parallelogram, polygon or circle.
5. lippacking as claimed in claim 2, it is characterised in that the institute in often arranging fluted arranges vertically.
6. a kind of bearing, including inner ring, outer ring, located at the lippacking of axial end portion, and for the lip packing
The contact surface of the sealing lip contact of part；
Characterized in that, the contact surface is provided with some recess regions, the recess region includes some grooves, each described
The circumferentially spaced arrangement of recess region.
7. bearing as claimed in claim 6, it is characterised in that some grooves form some rows circumferentially arranged, often
Row has several described grooves.
8. bearing as claimed in claim 7, it is characterised in that in the recess region, the row's of some grooves formation
Quantity is identical with the quantity of the groove in often row.
9. bearing as claimed in claim 7 or 8, it is characterised in that all groove arrangements in the recess region are into pros
Shape, rectangle, parallelogram, polygon or circle.
10. bearing as claimed in claim 7, it is characterised in that the institute in often arranging fluted arranges vertically.
11. bearing as claimed in claim 6, it is characterised in that the contact surface is located at outer peripheral face or the institute of the inner ring
State the inner peripheral surface of outer ring.
12. bearing as claimed in claim 6, it is characterised in that also including disc, be sheathed on the inner ring outer peripheral face or
On the inner peripheral surface of outer ring described in person, the contact surface is located on the disc.
13. bearing as claimed in claim 12, it is characterised in that the disc has the perisporium being set on corresponding side face
And the coaxially connected flange in the perisporium, at least one in the perisporium, the flange are provided with the contact surface.
14. bearing as claimed in claim 6, it is characterised in that also including bushing, be sheathed on the inner ring outer peripheral face or
On the inner peripheral surface of the outer ring, the bushing is provided with the contact surface.
15. bearing as claimed in claim 6, it is characterised in that the lippacking is any one of claim 1-5 institutes
The lippacking stated.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645596.XA CN107701591A (en) | 2016-08-08 | 2016-08-08 | Lip seal and bearing |
| DE102017115992.4A DE102017115992A1 (en) | 2016-08-08 | 2017-07-17 | A lip-shaped sealing part and a bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645596.XA CN107701591A (en) | 2016-08-08 | 2016-08-08 | Lip seal and bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107701591A true CN107701591A (en) | 2018-02-16 |
Family
ID=60996377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610645596.XA Pending CN107701591A (en) | 2016-08-08 | 2016-08-08 | Lip seal and bearing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107701591A (en) |
| DE (1) | DE102017115992A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220034365A1 (en) * | 2020-07-31 | 2022-02-03 | Aktiebolaget Skf | Bearing assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573690A (en) * | 1984-12-13 | 1986-03-04 | General Motors Corporation | Sealing surface and method |
| US20040004326A1 (en) * | 2002-07-02 | 2004-01-08 | Liming Lou | Sealing device and sliding member |
| CN201087764Y (en) * | 2007-02-15 | 2008-07-16 | 浙江工业大学 | Variable distribution porous end face mechanical sealing structure |
| CN101696728A (en) * | 2009-10-23 | 2010-04-21 | 浙江工业大学 | Liquid lubricated end face seal structure with cross-scale surface texture characteristic |
| CN102906472A (en) * | 2010-03-12 | 2013-01-30 | Skf公司 | Low-friction seal |
-
2016
- 2016-08-08 CN CN201610645596.XA patent/CN107701591A/en active Pending
-
2017
- 2017-07-17 DE DE102017115992.4A patent/DE102017115992A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573690A (en) * | 1984-12-13 | 1986-03-04 | General Motors Corporation | Sealing surface and method |
| US20040004326A1 (en) * | 2002-07-02 | 2004-01-08 | Liming Lou | Sealing device and sliding member |
| CN201087764Y (en) * | 2007-02-15 | 2008-07-16 | 浙江工业大学 | Variable distribution porous end face mechanical sealing structure |
| CN101696728A (en) * | 2009-10-23 | 2010-04-21 | 浙江工业大学 | Liquid lubricated end face seal structure with cross-scale surface texture characteristic |
| CN102906472A (en) * | 2010-03-12 | 2013-01-30 | Skf公司 | Low-friction seal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220034365A1 (en) * | 2020-07-31 | 2022-02-03 | Aktiebolaget Skf | Bearing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017115992A1 (en) | 2018-02-08 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180216 |