CN107806516A - Seal, sealing adaptor device and containment member - Google Patents
Seal, sealing adaptor device and containment member Download PDFInfo
- Publication number
- CN107806516A CN107806516A CN201710775495.9A CN201710775495A CN107806516A CN 107806516 A CN107806516 A CN 107806516A CN 201710775495 A CN201710775495 A CN 201710775495A CN 107806516 A CN107806516 A CN 107806516A
- Authority
- CN
- China
- Prior art keywords
- axle
- sealing
- lip
- outer peripheral
- peripheral face
- 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.)
- Granted
Links
Classifications
-
- 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
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic 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
- 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
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more 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
- 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
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
-
- 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
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
Abstract
Disclosure is a kind of prevent fluid the outside of device exterior space and device inner side inner space between the seal, sealing adaptor device and the containment member that circulate.Seal possesses：Containment member, it has the sealing on the surface for being crimped on device；Preventing portion, it prevents that caused foreign matter enters between sealing and the surface of device in space internally.
Description
Technical field
The present invention relates to for prevent from having housed the fluid in device outflow, fluid flowed into device seal,
Sealing adaptor device and containment member.
Background technology
Containment member is used in various technical fields.Such as containment member is to prevent from being sealing into device
The oily of portion spills and used.Or, containment member be in order to prevent inside from liquid to device flow into and use (Japan
State opens clear 62-100374 publications in fact).
There are two portions abutted with the outer peripheral face of rotary shaft in the containment member of Japanese Unexamined Patent Publication 62-100374 publications
Position.One in two positions is main lip.Another in two positions is dust excluder lips.Dust excluder lips are in the position than main lip in the outer part
Put and abutted with the outer peripheral face of rotary shaft, therefore, the foreign matter (such as dust) to be swum on the outside of device is difficult to reach main lip.
In device by during use, also trickle foreign matter is produced by the parts for the inside for being configured to device sometimes.Such as
Iron powder is produced by the flank of tooth of the gear for the inside for being configured to device.The dust excluder lips of Japanese Unexamined Patent Publication 62-100374 publications are helpless
In preventing from reaching main lip in foreign matter caused by the inside of device.Thus, also enter master sometimes in foreign matter caused by the inside of device
Border between lip and rotary shaft.In this case, foreign matter also damages main lip and/or the outer peripheral face of rotary shaft sometimes.Main lip and/
Or the friction of the outer peripheral face of rotary shaft makes the sealing property of containment member substantially reduce.
The content of the invention
The sealing caused by foreign matter caused by the inside in device is not likely to produce it is an object of the invention to provide a kind of
The technology of the reduction of energy.
The seal of the technical scheme of the present invention prevents fluid in the exterior space and described device in the outside of device
Circulated between the inner space of inner side.Seal possesses：Containment member, it has the sealing on the surface for being crimped on described device
Portion；Preventing portion, its prevent foreign matter caused by the inner space enter the sealing and described device the surface it
Between.
The sealing adaptor device of another technical scheme of the present invention is configured at the shell of described device and is inserted in described outer
Hull shape into through hole axle between.The sealing adaptor device possesses above-mentioned seal and is installed on the installation portion of the shell.
The installation portion includes the inner peripheral surface for surrounding the axle.The axle has the surface of the outer peripheral face as described device.It is described
Annulus is formed between the outer peripheral face of the axle and the inner peripheral surface of the installation portion.
The containment member of the another technical scheme of the present invention is configured in the annulus formed in device, prevents fluid
The outside of described device exterior space and described device inner side inner space between circulate.Containment member possesses：Ring
The main lip of shape, it has the sealing on the surface for being crimped on described device；Press section, the main lip is pressed on described device by it
The surface；Dust excluder lips, it is pressed against the surface of described device in the position than the main lip in the outer part.It is described anti-
The internal diameter of dirt lip is smaller than the internal diameter of the sealing.
Above-mentioned Sealing Technology can be difficult to the reduction of the sealing property caused by foreign matter caused by the inside in device
Produce.
Brief description of the drawings
Fig. 1 is the sectional view of the outline of the seal of the 1st embodiment.
Fig. 2 is the sectional view of the outline of the seal of the 2nd embodiment.
Fig. 3 is the sectional view of the outline of the seal of the 3rd embodiment.
Fig. 4 is the sectional view of the outline of the sealing adaptor device of the 4th embodiment.
Fig. 5 is the skeleton diagram for the installation procedure that axle is installed on to sealing adaptor device.
Fig. 6 is the skeleton diagram for the installation procedure that the assembly being made up of axle and sealing adaptor device is installed on to shell.
Fig. 7 is the sectional view of the outline of the containment member of the 5th embodiment.
Embodiment
The embodiments of ＜ the 1st>
The present inventor etc. is to making caused by the reduction of the sealing property caused by the foreign matter caused by the inside in device is difficult to
Technology is developed.In the 1st embodiment, to the seal of illustration of good sealing property can be maintained to carry out for a long time
Explanation.
Fig. 1 is the sectional view of the outline of the seal 100 of the 1st embodiment.Reference picture 1, seal 100 is said
It is bright.
Seal 100 shown in Fig. 1 is loaded into device APT.Device APT includes axle SFT and shell HSG.Said in following
In bright, the space surrounded by shell HSG and axle SFT is referred to as " inner space ".The space in shell HSG outside is referred to as " outer
Portion space ".
If shell HSG is fixed, axle SFT rotates around rotation axis RAX.If axle SFT is fixed, shell HSG is around rotation
Shaft axis RAX rotates.Device APT both can be decelerator or other devices.The principle of present embodiment does not limit
In the specific mechanism as device APT.
Seal 100 is ring-type on the whole.Axle SFT is cylindric on the whole.Axle SFT includes what is abutted for seal 100
Outer peripheral face OSF.Shell HSG is drum on the whole.Shell HSG includes the 1st inner peripheral surface FIS, the 2nd inner peripheral surface SIS and shoulder
Face SSF.1st inner peripheral surface FIS surrounding axle SFT between exterior space and inner space, form annulus.Seal 100 is embedding
Enter the annulus formed between outer peripheral face OSF and the 1st inner peripheral surface FIS.2nd inner peripheral surface SIS in axle SFT axial direction than
The position surrounding axle SFT of the 1st inner sides of inner peripheral surface FIS.At least a portion of inner space be formed at the 2nd inner peripheral surface SIS with it is outer
Between side face OSF.2nd inner peripheral surface SIS diameter is smaller than the 1st inner peripheral surface FIS diameter.Thus, shoulder face SSF is formed in the 1st
Between side face FIS and the 2nd inner peripheral surface SIS.Shoulder face SSF is the circumferentia along the imaginary plane orthogonal with rotation axis RAX.
Lubricating oil is contained in inner space.Lubricating oil can also be for zero of the device APT to being configured to inner space
Part is (not shown：Such as gear) be lubricated and use.The principle of present embodiment is not limited to be lubricated by lubricating oil
Specific parts.
Seal 100 is embedded in annulus, inner space is isolated with exterior space.As a result, from inner space
Outflow of lubrication oil is hindered by seal 100.If liquid (such as cleaning fluid) is dispersed in around device APT, seal 100
Hinder the liquid internally space inflow for being present in exterior space.
Containment member 200 and ring-type of the seal 100 including ring-type prevent ring 300.Containment member 200 and prevent ring
300 are configured at the annulus formed between shell HSG the 1st inner peripheral surface FIS and axle SFT outer peripheral face OSF.Prevent ring
300 are configured at the position than 200 inner side of containment member in axle SFT axial direction.I.e., ring 300 is prevented to face inner space.Separately
On the one hand, containment member 200 faces exterior space.
Containment member 200 includes main ring portion 210, the main lip 220 of ring-type, the dust excluder lips 230 of ring-type and turn 240.
Main ring portion 210 has the section of substantially L-shaped on the imaginary plane comprising rotation axis RAX.Main ring portion 210 includes becket
211 and clad 212.Becket 211 has the section of substantially L-shaped on the imaginary plane comprising rotation axis RAX.Cladding
Layer 212 integrally covers becket 211.Clad 212 can both be formed by elastomeric material, can also be by flexible resin
Formed.
Clad 212 forms the 1st bearing surface 213, the 2nd bearing surface 214, outer surface 215, inner surface 216 and inner peripheral surface
217.1st bearing surface 213 is connected with axial one end in the 2nd bearing surface 214, and in a manner of relative with preventing ring 300
Radially extended from the one end.1st bearing surface 213 will prevent the periphery of ring 300 with preventing the outer region of ring 300 from abutting
Region presses on shell HSG shoulder face SSF.Thus, prevent ring 300 to be fixed between containment member 200 and shoulder face SSF.
2nd bearing surface 214 is directed towards the face of shell HSG the 1st inner peripheral surface FIS sides, along the 1st inner peripheral surface FIS in axle
Upwardly extend.2nd bearing surface 214 abuts with shell HSG the 1st inner peripheral surface FIS.2nd bearing surface 214 connects with the 1st inner peripheral surface FIS
The area in tactile region is bigger than main lip 220 and dust excluder lips 230 and the area in the axle SFT outer peripheral face OSF regions contacted.Cause
And the 2nd bearing surface 214 is fixed relative to the 1st inner peripheral surface FIS, and main lip 220 and dust excluder lips 230 are sliding on outer peripheral face OSF
It is dynamic.
Outer surface 215 is directed towards the face of the side opposite with the 1st bearing surface 213, is externally exposed space.Outer surface 215
It is connected with the axial other end (end of the side opposite with one end that the 1st bearing surface 213 is connected) in the 2nd bearing surface 214,
And radially extended from the other end.
Inner surface 216 includes：1st region 218, it expands from the inner of the radial direction of the 1st bearing surface 213 towards outer surface 215
Open up and relative with axle SFT outer peripheral face OSF；2nd region 219, it expands from the 1st region 218 towards axle SFT outer peripheral face OSF
Exhibition, and it is relative with preventing ring 300.
Inner peripheral surface 217 is connected with the inner of the radial direction of outer surface 215, also, extends from the inner to axially inner side.Inner circumferential
Face 217 is diametrically relative with outer peripheral face OSF.
Dust excluder lips 230 are formed between inner peripheral surface 217 and outer peripheral face OSF.Dust excluder lips 230 are along out of clad 212
Side face 217 protrudes towards axle SFT outer peripheral face OSF direction and towards the direction of exterior space.Dust excluder lips 230 are crimped on axle
SFT outer peripheral face OSF, the foreign matter for preventing from swimming in exterior space reach main lip 220.Dust excluder lips 230 can also by with clad
212 identical materials are formed.
Main lip 220 can also be by forming with the identical material of clad 212.Main lip 220 is located at than dust excluder lips 230 by axially
The position of inner side, including pressure contact portion 221 and linking part 222.Pressure contact portion 221 is connected using linking part 222 with dust excluder lips 230, and
And in dust excluder lips 230 and the outer peripheral face OSF for preventing from being crimped between ring 300 axle SFT.Main lip 220 prevents liquid via dust excluder lips
230 flow into towards inner space.In addition, main lip 220 prevent lubricating oil via prevent ring 300 towards exterior space flow out.At this
In embodiment, the surface region of main lip 220 is an example of the sealing on the surface for being crimped on device APT.The table of device
Face is illustrated by axle SFT outer peripheral face OSF.
Linking part 222 is prominent from the inner surface 216 in main ring portion 210 towards axially inner side (i.e., direction prevents ring 300), with
Pressure contact portion 221 links.As described above, dust excluder lips 230 prevent the entrance of the foreign matter to be swum in exterior space, therefore, foreign matter is several
The space surrounded by dust excluder lips 230, linking part 222, pressure contact portion 221 and axle SFT outer peripheral face OSF is not entered.
Turn 240 is embedded in the outer peripheral face in the pressure contact portion 221 of main lip 220 (i.e., along radial direction and main ring portion 210
The relative face in 1st region 218 of inner surface 216) endless groove that is formed.If axle SFT embedding sealings component 200, turn 240
Flexibly extend.As a result, the power towards rotation axis RAX acts on pressure contact portion 221.Pressure contact portion 221 is elastically compressed change
Shape.Thus, the border between pressure contact portion 221 and axle SFT outer peripheral face OSF forms good seal construction.In this embodiment party
In formula, press section is illustrated by turn 240.Alternatively, press section can also flexibly be extended by the insertion according to axle SFT
Other components formed.The principle of present embodiment is not limited to the specific parts that press section is utilized.
Prevent ring 300 from including ring wall 310 and lip 320.Ring wall 310 includes interior bearing surface 311, outer bearing surface 312, periphery
Face 313 and inner peripheral surface 314.
Outer peripheral face 313 axially extends, and is connected to shell HSG the 1st inner peripheral surface FIS.Interior bearing surface 311 with it is outer
Axial one end in side face 313 is connected, and is radially oriented inner side from the one end and extends.Interior bearing surface 311 is included in periphery
Near face 313 with the shell HSG shoulder face SSF outer region abutted and the inner region for facing inner space.
Outer bearing surface 312 is the face for being axially toward the side opposite with interior bearing surface 311.Outer bearing surface 312 with it is outer
The axial other end (end of the side opposite with one end that interior bearing surface 311 is connected) in side face 313 is connected, also, from
The other end is radially oriented inner side and extended.Outer bearing surface 312 includes：Outer region, its 1st bearing surface with containment member 200
213 abut；Inner region, it is relative with the 2nd region 219 of the inner surface 216 of containment member 200 in the axial direction.
Inner peripheral surface 314 is the face radially toward the side opposite with outer peripheral face 313.The straight diameter ratio shaft of inner peripheral surface 314
SFT diameter is big.Inner peripheral surface 314 is diametrically relative with axle SFT outer peripheral face OSF.Lip 320 be located at inner peripheral surface 314 with it is outer
Between side face OSF.
Ring wall 310 includes the elastic wall 315 and stiffening ring 316 of ring-type.Elastic wall 315 forms outer peripheral face 313, inner peripheral surface
314 and interior bearing surface 311.In addition, elastic wall 315 forms a part for outer bearing surface 312.
The rigidity of stiffening ring 316 is bigger than the rigidity of elastic wall 315.Elastic wall 315 is by elastomeric material, flexible resin
Material is formed, and stiffening ring 316 can also be formed by metal, hard resin.Stiffening ring 316 maintains the shape of ring wall 310, because
This, operator easily can will prevent ring 300 to be configured in device APT.The principle of present embodiment is not limited to elasticity
The specific material that wall 315 and stiffening ring 316 are utilized.
Stiffening ring 316 is embedded in the recessed groove portion in the region of the side opposite with inner peripheral surface 314 of elastic wall 315.Its
As a result, stiffening ring 316 is fixed on elastic wall 315 in a manner of surrounding inner peripheral surface 314.
Lip 320 is integrally formed with elastic wall 315.Lip 320 can also by with the identical material shape of elastic wall 315
Into.Lip 320 protrudes from the inner peripheral surface 314 (inner peripheral of elastic wall 315) of ring wall 310 towards axle SFT.Lip 320 is in axle SFT
Outer peripheral face OSF near towards inner space slight curvature, be crimped on outer peripheral face OSF.As a result, pressure contact portion 221 is prevented
Only ring 300 is isolated with inner space.In the present embodiment, inner peripheral is illustrated by the inner peripheral surface 314 of ring wall 310.
Fig. 1 represents caused iron powder IPD in space internally.Such as iron powder IPD is from the gear being configured in device APT
The flank of tooth produces.The principle of present embodiment is not limited to make specific generating source caused by iron powder IPD.
Iron powder IPD will also enter the border between pressure contact portion 221 and axle SFT outer peripheral face OSF sometimes as foreign matter.So
And as shown in figure 1, lip 320 intercepts iron powder IPD, therefore, iron powder IPD, which hardly enters, is preventing ring 300 and containment member
The space formed between 200.Thus, borders of the iron powder IPD between pressure contact portion 221 and axle SFT outer peripheral face OSF causes friction
Risk it is very small.As a result, seal 100 can play good sealing property for a long time.In the present embodiment, preventing portion
By preventing ring 300 from illustrating.
Lip 320 can also press on axle SFT outer peripheral face OSF with the power weaker than pressure contact portion 221.As a result, axle SFT with
Caused frictional force up to will not need degree between seal 100.In the present embodiment, the 1st crimp force is by acting on
The compression stress (i.e., pressing force caused by turn 240) of pressure contact portion 221 illustrates.2nd crimp force is by lip 320 is pressed on
Axle SFT outer peripheral face OSF power illustrates.
The embodiments of ＜ the 2nd>
Ring is prevented to have what is be made up of elastomeric material and rigid material with what the 1st embodiment was illustrated in association
Compound structure.However, prevent ring from can also be formed by homogenous material.In the 2nd embodiment, to being formed by homogenous material
The seal of the illustration for preventing ring illustrate.
Fig. 2 is the sectional view of the seal 100A of the 2nd embodiment outline.Reference picture 2 is said to seal 100A
It is bright.The explanation of above-mentioned embodiment, which is applied at, to be labeled with and the reference identical reference of above-mentioned embodiment
Key element.
In a same manner as in the first embodiment, seal 100A possesses containment member 200.The explanation of 1st embodiment is applied at
Containment member 200.
Seal 100A is also equipped with preventing ring 300A.Prevent ring 300A from being formed on the whole by felt materials.
Prevent ring 300A from including interior bearing surface 311A, outer bearing surface 312A, outer peripheral face 313A and inner peripheral surface 314A.Outside
Side face 313A is axially extended, also, is abutted with shell HSG the 1st inner peripheral surface FIS.Interior bearing surface 311A and outer peripheral face
Axial one end in 313A is connected, also, is radially oriented inner side from the one end and extends.Interior bearing surface 311A is included in outer peripheral face
Near 313A with the shell HSG shoulder face SSF outer region abutted and the inner region for facing inner space.
Outer bearing surface 312A is the face for being axially toward the side opposite with interior bearing surface 311A.Outer bearing surface 312A with
The axial other end (end of the side opposite with one end that interior bearing surface 311A is connected) in outer peripheral face 313A is connected, and
Inner side is radially oriented from the other end to extend.Outer bearing surface 312A includes：Outer region, it is abutted with the 1st of containment member 200
Face 213 abuts；Inner region, it is relative with the 2nd region 219 of the inner surface 216 of containment member 200 in the axial direction.
Inner peripheral surface 314A is the face radially toward the side opposite with outer peripheral face 313A.Inner peripheral surface 314A is axially
Extension, and abutted with axle SFT outer peripheral face OSF.Thus, containment member 200 is prevented from ring 300A isolates with inner space.
As shown in Fig. 2 the iron powder IPD internally to be swum in space is prevented from ring 300A interior bearing surface 311A captures.Cause
And iron powder IPD hardly enters the space prevented between ring 300A and containment member 200.Iron powder IPD is in pressure contact portion 221 and axle
Border between SFT outer peripheral face OSF causes the risk of friction very small, and therefore, seal 100A can be played well for a long time
Sealing property.
The embodiments of ＜ the 3rd>
On above-mentioned embodiment, the preventing portion for intercepting in foreign matter caused by the inside of device is formed as and sealed
The component of component independence.Alternatively, preventing portion can also be integrally formed with containment member.In this case, operator's energy
It is enough that seal is easily installed on device.In the 3rd embodiment, to the example with the preventing portion integrated with containment member
The seal shown illustrates.
Fig. 3 is the sectional view of the seal 100B of the 3rd embodiment outline.Reference picture 1 and Fig. 3, illustrate seal
100B.The explanation of above-mentioned embodiment is applied at the reference identical reference being labeled with above-mentioned embodiment
Key element.
Seal 100B possesses the containment member 200B and lip 320B of ring-type.Lip 320B is said with reference picture 1
Bright lip 320 similarly uses to intercept iron powder IPD.It is different from above-mentioned embodiment, lip 320B with it is close
It is integral to seal component 200B.In the present embodiment, preventing portion is illustrated by lip 320B.
In a same manner as in the first embodiment, containment member 200B includes main ring portion 210, dust excluder lips 230 and turn
240.The explanation of 1st embodiment is applied at these key elements.
Containment member 200B also includes the main lip 220B of ring-type.In a same manner as in the first embodiment, main lip 220B includes linking
Portion 222.The explanation of 1st embodiment is applied at linking part 222.
Main lip 220B also includes pressure contact portion 221B.Pressure contact portion 221B is between dust excluder lips 230 and lip 320B by turn
240 are crimped on axle SFT outer peripheral face OSF.Main lip 220B prevents liquid from being flowed into via dust excluder lips 230 towards inner space.In addition,
Main lip 220B prevents lubricating oil from being flowed out via lip 320B towards exterior space.In the present embodiment, main lip 220B surface
Region is an example of the sealing on the surface for being crimped on device APT.
Lip 320B is integrally formed with pressure contact portion 221B.Lip 320B is from pressure contact portion 221B towards inner space and axle
SFT outer peripheral face OSF is protruded, and is pressed against axle SFT outer peripheral face OSF.
Pressure contact portion 221B is surrounded by turn 240, and lip 320B is not surrounded by turn 240.Thus, due to turn
240 elastic deformation and caused pressing force forceful action weaker act on lip 320B in pressure contact portion 221B.It is tied
Frictional force between fruit, seal 100B and axle SFT outer peripheral face OSF up to will not need degree.
Be crimped on axle SFT outer peripheral face OSF pressure contact portion 221B surface region by lip 320B and dust excluder lips 230 with it is interior
Portion space and exterior space isolation.Thus, the iron powder IPD that is internally swum in region, the foreign matter to be swum in exterior space are difficult
Friction is caused with the border between pressure contact portion 221 and axle SFT.
The embodiments of ＜ the 4th>
Dust excluder lips are externally exposed space, therefore, operator can visuognosis have been loaded into device dust excluder lips whether
Bending.However, being exposed to inner space for the lip for intercepting caused foreign matter in space internally, therefore, operator can not
Whether the lip of visuognosis seal bends.If lip also has in device inner bending, the foreign matter internally to be swum in space
When reach main lip, the border between axle and main lip causes friction.In the 4th embodiment, to for reducing lip in device
The technology of the illustration of the risk of inner bending illustrates.
Fig. 4 is the sectional view of the outline of the sealing adaptor device 400 of the 4th embodiment.Reference picture 1, Fig. 3 and Fig. 4, illustrate close
Seal adapter 400.The explanation of above-mentioned embodiment be applied at be labeled with it is attached with above-mentioned embodiment reference identical
The key element of icon note.
Sealing adaptor device 400 possesses seal 100C, bearing 410, locating snap ring 420 and switching cylinder 430.Seal
100C can also be the seal 100 that reference picture 1 is illustrated.Enter alternatively, seal 100C can also be reference picture 3
Gone explanation seal 100B.The explanation relevant with seal 100,100B is applied at seal 100C.
Switching cylinder 430 includes the flange 431 and holding cylinder 432 of ring-type.Flange 431 includes：Inner surface 441；Outer surface
442, its direction side opposite with inner surface 441；Inner peripheral surface 443, it is by the inner of inner surface 441 and outer surface 442
End is connected；Outer peripheral face 444, its direction side opposite with inner surface 443；Shoulder face 445, it is radially oriented interior from inner peripheral surface 443
Side extends.Inner surface 441 abuts with the surface of shell (not shown).The outer surface 442 of the side opposite with inner surface 441 exposes
In exterior space.Flange 431 is formed at from multiple through holes 446 of the inner surface 441 of outer surface 442 extension.Multiple screws point
Do not insert multiple through holes 446, with outer hull shape into screwed hole be screwed.As a result, flange 431 is fixed in shell.
In the present embodiment, installation portion is illustrated by flange 431.
Outer peripheral face 444 surrounds inner peripheral surface 443.The axial length of outer peripheral face 444 with outer hull shape into circular depressions (not shown)
Depth it is substantially uniform.The diameter of outer peripheral face 444 with outer hull shape into circular depressions diameter it is substantially uniform.
The inner peripheral surface 443 of the opposite side of outer peripheral face 444 forms the space for axle insertion (not shown).Inner peripheral surface 443 it is straight
The diameter of diameter ratio shaft is big.Thus, the surrounding axle of inner peripheral surface 443, ring is formed between the outer peripheral face of inner peripheral surface 443 and axle (not shown)
Shape space.Seal 100C is embedded in annulus.
The diameter of inner peripheral surface 443 is bigger than the internal diameter of holding cylinder 432.Thus, shoulder face 445 is formed at inner peripheral surface 443 with keeping
Between cylinder 432.Shoulder face 445 is the circumferentia along the imaginary plane formation orthogonal with rotation axis RAX.Operator is by seal
The space that 100C press-ins are formed by inner peripheral surface 443, can press on shoulder face 445.
Holding cylinder 432 is internally spatially extended from shoulder face 445.Holding cylinder 432 includes principal part 451 and top ends 452.Top
The internal diameter in portion 452 is smaller than the internal diameter of principal part 451.Thus, top ends 452 protrude from principal part 451 towards rotation axis RAX.Operation
Bearing 410 is pressed into holding cylinder 432 by person, bearing 410 is abutted with top ends 452.
Principal part 451 includes the inner peripheral surface 453 abutted with the outer ring of bearing 410.The endless groove for surrounding rotation axis RAX is formed
In inner peripheral surface 453.Locating snap ring 420 is embedded in inner peripheral surface 453 by operator after bearing 410 is embedded into holding cylinder 432
The endless groove of formation.Locating snap ring 420 and top ends 452 clip bearing 410, and therefore, bearing 410 will not be along rotation axis RAX
Extended direction shifted.Operator is embedding by seal 100C after locating snap ring 420 is installed into holding cylinder 432
Enter flange 431.As a result, sealing adaptor device 400 is completed.
Fig. 5 is the skeleton diagram for the installation procedure that axle SFT is installed on to sealing adaptor device 400.Reference picture 1, Fig. 3 and Fig. 5, say
Bright installation procedure.
Axle SFT is in the direction from exterior space towards inner space (i.e., from the outer surface 442 of flange 431 towards inner surface
441 direction) on insert sealing adaptor device 400.Axle SFT outer peripheral face OSF abuts with the inner peripheral surface of bearing 410, by bearing 410
Keep.Thus, axle SFT can rotate around rotation axis RAX.
As being illustrated in association with Fig. 1 and Fig. 3, lip 320,320B protrude towards inner space, therefore,
Lip 320,320B projected direction are consistent with axle SFT direction of insertion.During axle SFT insertion, lip 320,320B energy
Enough postures for maintaining to protrude towards bearing 410, therefore, lip 320,320B be not pliable.
Axle SFT includes gear shaft GSF and beam barrel STT.Gear shaft GSF base end part insertion beam barrel STT.In gear shaft GSF
Top ends formed with gear part GPT.Gear part GPT engages with other gears being configured in device (not shown).Reference picture 1
And the iron powder IPD that are illustrated of Fig. 3 can also be because being produced engaging between gear part GPT and other gears.
Beam barrel STT includes the 1st portion FTB and the 2nd portion STB.2nd portion STB is from the 1st portion FTB towards inner space
Extension.1st portion FTB external diameter is bigger than the 2nd portion STB external diameter.Thus, shoulder face SLD is formed at the 1st portion FTB and the 2nd
Border between portion STB.Axle SFT is inserted sealing adaptor device 400 untill shoulder face SLD abuts with bearing 410 by operator.Its
As a result, seal 100C is accommodated in the ring formed between the 1st portion FTB outer peripheral face OSF and the inner peripheral surface 443 of flange 431
Shape space.Lip 320 that reference picture 1 and Fig. 3 are illustrated, 320B top are crimped on the 1st portion FTB outer peripheral face OSF.
Now, bearing 410 is accommodated in the ring-type formed between the inner peripheral surface 453 of holding cylinder 432 and the 2nd portion STB outer peripheral face OSF
Space.In the present embodiment, the surface of device is illustrated by beam barrel STT outer peripheral face OSF.
As shown in Figure 5 in the left, the 2nd portion STB outer peripheral face OSF formed with endless groove AGV.If shoulder face SLD and axle
410 abuttings are held, then endless groove AGV is exposed in the circular space surrounded by the top ends 452 of holding cylinder 432.Such as Fig. 5 right figure
Shown, locating snap ring SPR is embedded in endless groove AGV by operator.As a result, the inner ring of bearing 410 is by shoulder face SLD and locating snap ring SPR
Clamping.On the other hand, the outer ring of bearing 410 is kept the top ends 452 of cylinder 432 and locating snap ring 420 clamps.Thus, bearing 410
It is fixed on rotation axis RAX extended direction in holding cylinder 432.
Fig. 6 be by the assembly being made up of axle SFT and sealing adaptor device 400 be installed on shell HSH installation procedure it is general
Sketch map.Reference picture 1, Fig. 3~Fig. 6, illustrate installation procedure.
Shell HSH includes：Outer face OES；Concave surface RCS, it forms step relative to outer face OES；And keep wall
SWS, it is axially extended from concave surface RCS the inner.Outer face OES is externally exposed space.Concave surface RCS is around rotation axis
RAX is recessed from outer face OES.Flange 431 is contained in the concave space surrounded by concave surface RCS.Multiple screw SCW extend through more
Individual through hole 446 (reference picture 4), the screwed hole with being formed in concave surface RCS are screwed.As a result, flange 431 is fixed in outside
Shell HSH.
Wall SWS is kept to form through hole, the through hole forms a part for inner space.Axle SFT is passed through in through hole
It is logical.Holding cylinder 432 inserts the through hole formed by holding wall SWS.Holding cylinder 432 is supported by holding wall SWS.
According to the principle of present embodiment, operator is making the assembly that is made up of axle SFT and sealing adaptor device 400
Afterwards, assembly is loaded into shell HSH.As being illustrated reference picture 5, in the making of assembly, lip 320,
320B (reference picture 1 and Fig. 3) is not pliable.In loading of the assembly to shell HSH, switching cylinder 430 is present in seal
Between 100C and shell HSH, therefore, seal 100C does not interfere with shell HSH.Thus, lip 320,320B will not be bent, energy
Enough states for maintaining to be crimped into axle SFT outer peripheral face OSF.Lip 320,320B can effectively intercept from gear part GPT, its
Iron powder IPD (reference picture 1 and Fig. 3) caused by his sliding contact position, therefore, iron powder IPD damages seal 100C sealing work(
The risk of energy is greatly reduced.
The embodiments of ＜ the 5th>
Lubricating grease is applied in order to reduce the frictional force between dust excluder lips and axle.Such as enter in association with the 1st embodiment
Go that explanation is such, and dust excluder lips are configured near main lip, therefore, the grease layer also border shape between main lip and axle sometimes
Into.In this case, the lubricating oil energy in shell is housed and between main lip and axle to reduce the frictional force between gear
Border grease layer contact.Although dependent on the combination of lubricating oil and the composition of lubricating grease, lubricating oil is relative to lubrication
The contact of lipid layer is also attributed to the generation of the greasy filth on the border between main lip and axle.Greasy filth works as foreign matter, can cause
The friction of main lip.In the 5th embodiment, the technology of the illustration of the risk of the generation to reducing greasy filth illustrates.
Fig. 7 is the sectional view of the containment member 200D of the 5th embodiment outline.Reference picture 7, illustrates containment member
200D.The explanation of above-mentioned embodiment is applied at the reference identical reference being labeled with above-mentioned embodiment
Key element.
In a same manner as in the first embodiment, containment member 200D includes main ring portion 210, main lip 220 and turn 240.
The explanation of 1st embodiment is applied at these key elements.
Fig. 7 represents device APU.In a same manner as in the first embodiment, device APU includes shell HSG.1st embodiment is said
It is bright to be applied at shell HSG.
Device APU also includes axle SFU.Axle SFU is surrounded by shell HSG.Containment member 200D is embedded in shell HSG and axle
The annulus formed between SFU, prevent fluid from being circulated between exterior space and inner space.
Axle SFU includes：1st outer peripheral face FOS；2nd outer peripheral face SOS, it is located at than the 1st outer peripheral face FOS by axially external
Position；Taper side face TPC, the 1st outer peripheral face FOS and the 2nd outer peripheral face SOS are connected by it, and to make axle SFU towards axially external
The mode of undergauge tilts.At least a portion of inner space is formed between shell HSG and the 1st outer peripheral face FOS.The main quilt of lip 220
Turn 240 presses on the 1st outer peripheral face FOS.In the present embodiment, press section is illustrated by turn 240.
2nd outer peripheral face SOS is partly externally exposed space.2nd outer peripheral face SOS diameter is more straight than the 1st outer peripheral face FOS
Footpath is small.Taper side face TPC forms the side face of the frustum of a cone to narrow from the 1st outer peripheral face FOS towards the 2nd outer peripheral face SOS.
Containment member 200D is also equipped with the dust excluder lips extended from the inner peripheral surface 217 in main ring portion 210 towards the 2nd outer peripheral face SOS
230D.Dust excluder lips 230D includes the top ends 231 abutted with the 2nd outer peripheral face SOS.I.e., top ends 231 are more outer than main lip 220
The position of side is crimped on axle SFU surface.
The dust excluder lips 230D limited by top ends 231 internal diameter is smaller than the internal diameter of main lip 220.As described above, the 2nd outer peripheral face
SOS has the diameter smaller than the 1st outer peripheral face FOS diameter, and therefore, top ends 231 excessively will not strongly be pressed on the 2nd periphery
Face SOS.In the present embodiment, the surface of device is illustrated by the 1st outer peripheral face FOS and the 2nd outer peripheral face SOS.
Lubricating grease is coated on the 2nd outer peripheral face SOS by operator, can be reduced between the outer peripheral face SOS of top ends 231 and the 2nd
Friction.Taper side face TPC between 1st outer peripheral face FOS and the 2nd outer peripheral face SOS prevents from being applied to the 2nd outer peripheral face SOS's
Lubricating grease shifts to the 1st outer peripheral face FOS.Thus, lubricating grease is not easy to contact with the lubricating oil housed to inner space.This means
The caused risk of greasy filth between the main outer peripheral face FOS of lip 220 and the 1st is lowered.As a result, the main outer peripheral face of lip 220 and the 1st
The risk of FOS friction is also reduced by.
The design principle being illustrated in association with above-mentioned various embodiments is applicable to various seal constructions.
With the part in 1 associated various features being illustrated in above-mentioned various embodiments be readily applicable to
The Sealing Technology that another embodiment is illustrated in association.
In addition, the summary of above-mentioned embodiment is as follows.
The seal of above-mentioned embodiment prevents fluid in the exterior space in the outside of device and the inner side of described device
Inner space between circulate.Seal possesses：Containment member, it has the sealing on the surface for being crimped on described device；It is anti-
Stop, it prevents that caused foreign matter enters between the sealing and the surface of described device in the inner space.
According to above-mentioned structure, seal, which possesses, prevents caused foreign matter in space internally from entering the anti-of the sealing
Stop, therefore, it is not likely to produce the reduction of the sealing property caused by foreign matter caused by the inside in device.
Or, the preventing portion includes being crimped on the lip on the surface of described device on above-mentioned structure.
The lip isolates the sealing with the inner space.
According to above-mentioned structure, the lip for being crimped on the surface of device isolates sealing with inner space, therefore, is filling
Caused foreign matter is difficult to reach sealing in the inner space put.Thus, it is not likely to produce because of foreign matter caused by the inside in device
The reduction of caused sealing property.
Or, the sealing is pressed on the table of described device by the 1st crimp force on above-mentioned structure
Face.Can also be that the lip is pressed by the 2nd crimp force smaller than the 1st crimp force.
According to above-mentioned structure, lip is pressed by the 2nd crimp force smaller than the 1st crimp force, therefore, seal and device
Frictional force between surface will not excessively become big.Thus, seal does not produce the excessive drag that the action with device mutually resists.
Or, the preventing portion is to be configured to the annulus formed in described device on above-mentioned structure
Interior prevents ring.Can also be, it is described to prevent ring from including：The elastic wall of ring-type, it has an inner peripheral, and the lip is from the inner circumferential
Edge protrudes；Stiffening ring, it is fixed on the elastic wall in a manner of surrounding the inner peripheral, and with more firm than the elastic wall
The high rigidity of property.
According to above-mentioned structure, there is the rigid stiffening ring higher than the rigidity of elastic wall to surround the inner peripheral of elastic wall
Mode be fixed on elastic wall, therefore, operator when by preventing that ring is configured in the annulus formed in device, elasticity
Wall is unlikely to deform.Thus, seal can be easily installed at device by operator.With the lip that elastic wall is integrally formed from
The inner peripheral of elastic wall protrudes, therefore, if operator will prevent ring to be configured in the annulus formed in device, lip
It is crimped on the surface of device.As a result, caused foreign matter is difficult to reach sealing in the inner space of device.Thus, no
It is also easy to produce the reduction of the sealing property caused by foreign matter caused by the inside in device.
Or, the preventing portion and the containment member are integral on above-mentioned structure.
According to above-mentioned structure, preventing portion and containment member are integral, and therefore, operator can be by seal easily
It is installed on device.
Or, the containment member includes on above-mentioned structure：The pressure contact portion of ring-type, it has the sealing
Portion, and be configured in the annulus formed in described device；Press section, the pressure contact portion is pressed on described device by it
The surface.Can also be that the lip and the pressure contact portion are integral, and are dashed forward from the pressure contact portion to the inner space
Go out.
According to above-mentioned structure, the pressure contact portion pressed portion of the ring-type being configured in the annulus formed in device by
The surface of device is pressed on, therefore, seal there can be good sealing function.Lip is integral with pressure contact portion, therefore, is made
Seal can be easily installed at device by dealer.From pressure contact portion, internally space protrudes lip, is abutted with the surface of device,
Therefore, lip can hinder the caused foreign matter in device to reach pressure contact portion.Thus, it is not likely to produce because being produced in the inside of device
Foreign matter caused by sealing property reduction.
The shell that the sealing adaptor device of above-mentioned embodiment is configured at described device is formed with being inserted in the shell
Through hole axle between, wherein, the sealing adaptor device possesses：Above-mentioned seal；Installation portion, it is installed on the shell.
The installation portion includes the inner peripheral surface for surrounding the axle.The axle has the surface of the outer peripheral face as described device.It is described
Annulus is formed between the outer peripheral face of the axle and the inner peripheral surface of the installation portion.
According to above-mentioned structure, the outer peripheral face of axle and the inner peripheral surface of installation portion are formed at for the annulus of seal configuration
Between, therefore, if installation portion is installed on the shell of device and axle is configured in shell by operator, by shell and axle
The inner space that outer peripheral face is formed is isolated by seal with the exterior space in the outside of device.Seal has preventing portion, therefore,
Internally caused foreign matter does not reach the sealing of containment member in space.Thus, it is possible to the sealing of sealing is maintained for a long time
Energy.
Or, sealing adaptor device is also equipped with above-mentioned structure：Holding cylinder, it is from the installation portion to described
Inner space extends；Bearing, it is embedded between the holding cylinder and the outer peripheral face of the axle.It can also be the lip
Protruded from the elastic wall or the pressure contact portion towards the bearing, be crimped on the outer peripheral face of the axle.
According to above-mentioned structure, the outer peripheral face of bearing insertion axle with from installation portion internally spatially extended holding cylinder it
Between, therefore, axle can be in shell internal rotation.Or shell can be pivoted.Lip is from elastic wall or pressure contact portion towards bearing
It is prominent, be crimped on the outer peripheral face of axle, therefore, if axle is embedded in bearing by operator through seal, the direction of insertion of axle with
The projected direction of lip is consistent.Thus, lip is not pliable on the outer peripheral face of axle.
The containment member of above-mentioned embodiment is configured in the annulus formed in device, prevents fluid described
Circulated between the inner space of the exterior space in the outside of device and the inner side of described device.Containment member possesses：The master of ring-type
Lip, it has the sealing on the surface for being crimped on described device；Press section, it presses on the main lip described in described device
Surface；And dust excluder lips, it presses on the surface of described device in the position than the main lip in the outer part.The dust excluder lips
Internal diameter it is smaller than the internal diameter of the sealing.
On above-mentioned structure, the internal diameter of dust excluder lips is smaller than the internal diameter of sealing, and therefore, designer can be with dust excluder lips
The mode that step is formed between the position that the position abutted is abutted with main lip designs the surface of device.Thus, it is coated to anti-
The lubricating grease on the border between dirt lip and the surface of device is isolated by step with the position that main lip is abutted, therefore, because of lubricating grease
It is greatly reduced with the risk housed to the contact between the lubricating oil of the inner space of device and caused greasy filth.Greasy filth
The border being difficult between sealing and the surface of device, therefore, it is not likely to produce because of greasy filth caused by the inside in device
The reduction of sealing property.
Claims (11)
1. a kind of seal, its prevent fluid the outside of device exterior space and described device inner side inner space it
Between circulate, it possesses：
Containment member, it has the sealing on the surface for being crimped on described device；
Preventing portion, it prevents in the inner space caused foreign matter from entering the surface of the sealing and described device
Between.
2. seal according to claim 1, wherein,
The preventing portion includes being crimped on the lip on the surface of described device,
The lip isolates the sealing with the inner space.
3. seal according to claim 2, wherein,
The sealing is pressed on the surface of described device by the 1st crimp force,
The lip is pressed by the 2nd crimp force smaller than the 1st crimp force.
4. the seal according to Claims 2 or 3, wherein,
The preventing portion is to be configured in the annulus formed in described device to prevent ring,
It is described to prevent ring from including：The elastic wall of ring-type, it has inner peripheral, and the lip protrudes from the inner peripheral；Stiffening ring, its
The elastic wall is fixed in a manner of surrounding the inner peripheral and there is the rigidity higher than the rigidity of the elastic wall.
5. according to seal according to any one of claims 1 to 3, wherein,
The preventing portion and the containment member are integral.
6. the seal according to Claims 2 or 3, wherein,
The containment member includes：The pressure contact portion of ring-type, it has the sealing, and is configured to what is formed in described device
In annulus；Press section, it presses on the pressure contact portion on the surface of described device,
The lip and the pressure contact portion are integral, and prominent from the pressure contact portion to the inner space.
7. a kind of sealing adaptor device, its be configured at the shell of device and be inserted in the through hole formed in the shell axle it
Between, wherein,
The sealing adaptor device possesses：
Seal described in claim 4；
Installation portion, it is installed on the shell,
The installation portion includes the inner peripheral surface for surrounding the axle,
The axle has the surface of the outer peripheral face as described device,
The annulus is formed between the outer peripheral face of the axle and the inner peripheral surface of the installation portion.
8. a kind of sealing adaptor device, its be configured at the shell of device and be inserted in the through hole formed in the shell axle it
Between, wherein,
The sealing adaptor device possesses：
Seal described in claim 6；
Installation portion, it is installed on the shell,
The installation portion includes the inner peripheral surface for surrounding the axle,
The axle has the surface of the outer peripheral face as described device,
The annulus is formed between the outer peripheral face of the axle and the inner peripheral surface of the installation portion.
9. sealing adaptor device according to claim 7, wherein,
The sealing adaptor device is also equipped with：
Holding cylinder, it extends from the installation portion to the inner space；
Bearing, it is embedded between the holding cylinder and the outer peripheral face of the axle,
The lip protrudes from the elastic wall towards the bearing, is crimped on the outer peripheral face of the axle.
10. sealing adaptor device according to claim 8, wherein,
The sealing adaptor device is also equipped with：
Holding cylinder, it extends from the installation portion to the inner space；
Bearing, it is embedded between the holding cylinder and the outer peripheral face of the axle,
The lip protrudes from the pressure contact portion towards the bearing, is crimped on the outer peripheral face of the axle.
11. a kind of containment member, it is configured in the annulus formed in device, prevents fluid in the outside of described device
Exterior space and described device inner side inner space between circulate, wherein, the containment member possesses；
The main lip of ring-type, it has the sealing on the surface for being crimped on described device；
Press section, it presses on the main lip on the surface of described device；
Dust excluder lips, it presses on the surface of described device in the position than the main lip in the outer part,
The internal diameter of the dust excluder lips is smaller than the internal diameter of the sealing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016175419A JP6807684B2 (en) | 2016-09-08 | 2016-09-08 | Seal adapter |
| JP2016-175419 | 2016-09-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107806516A true CN107806516A (en) | 2018-03-16 |
| CN107806516B CN107806516B (en) | 2021-06-29 |
Family
ID=61197817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710775495.9A Active CN107806516B (en) | 2016-09-08 | 2017-08-31 | Device comprising a sealing member |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6807684B2 (en) |
| KR (1) | KR102430244B1 (en) |
| CN (1) | CN107806516B (en) |
| DE (1) | DE102017213785A1 (en) |
| TW (1) | TWI732026B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115426A (en) * | 2020-01-13 | 2020-05-08 | 日立电梯（广州）自动扶梯有限公司 | Escalator and waterproof and dustproof roller assembly |
| CN111788418A (en) * | 2018-06-13 | 2020-10-16 | Nok株式会社 | Sealing device and sealing method based on sealing device |
| CN111981130A (en) * | 2019-05-23 | 2020-11-24 | 纳博特斯克有限公司 | Sealing structure, speed reducer, and method for manufacturing sealing structure |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7449733B2 (en) * | 2020-03-16 | 2024-03-14 | 住友重機械工業株式会社 | Seal member |
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- 2017-08-08 DE DE102017213785.1A patent/DE102017213785A1/en active Pending
- 2017-08-22 TW TW106128358A patent/TWI732026B/en active
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| US4304412A (en) * | 1979-11-02 | 1981-12-08 | Federal-Mogul Corporation | Contoured double-lip bearing seal |
| JP2000110946A (en) * | 1998-10-06 | 2000-04-18 | Koyo Sealing Techno Co Ltd | Hermetic sealing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20180028375A (en) | 2018-03-16 |
| CN107806516B (en) | 2021-06-29 |
| JP2018040436A (en) | 2018-03-15 |
| JP6807684B2 (en) | 2021-01-06 |
| TWI732026B (en) | 2021-07-01 |
| DE102017213785A1 (en) | 2018-03-08 |
| TW201816309A (en) | 2018-05-01 |
| KR102430244B1 (en) | 2022-08-09 |
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