CN206268449U - Crankshaft arrangement - Google Patents
Crankshaft arrangement Download PDFInfo
- Publication number
- CN206268449U CN206268449U CN201621409036.6U CN201621409036U CN206268449U CN 206268449 U CN206268449 U CN 206268449U CN 201621409036 U CN201621409036 U CN 201621409036U CN 206268449 U CN206268449 U CN 206268449U
- Authority
- CN
- China
- Prior art keywords
- seal
- bent axle
- crankshaft arrangement
- housing
- arrangement according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model is related to engine art, disclose a kind of crankshaft arrangement, the crankshaft arrangement includes the housing (4) with mounting hole (5) and rotationally through the bent axle (3) of the mounting hole (5), the crankshaft arrangement also includes first seal (2) and second seal (1), the first seal (2) is installed on the hole wall of the mounting hole (5), and the second seal (1) is installed on the bent axle exposed to the outer end of the housing (4) and separates the first seal (2) with the external world.This crankshaft arrangement can effectively prevent extraneous dust from entering oil sealing, substantially increase the integral sealing effect of crankshaft oil seal, so as to avoid the problem of oil sealing oil leak.
Description
Technical field
The utility model is related to engine art, in particular it relates to a kind of crankshaft arrangement.
Background technology
Crankshaft oil seal oil leak is one of dominant failure mode of engine.Oil leak can increase the consumption of lubricating oil of engine, together
When seepage machine oil can also cause the pollution of environment.When oil leak is serious, lubricating system machine oil can be caused not enough, aggravation kinematic pair
Abrasion, or even the serious failure such as scuffing of cylinder bore, engine can be caused to scrap.
External environment dust is the one of the main reasons for causing oil sealing oil leak into oil sealing.In order to prevent external environment dust
Into oil sealing, preferable sealing effectiveness is reached, solve the problems, such as crankshaft oil seal oil leak, at present, in the market has the oil of many types
Seal structure, but less effective.
Utility model content
The purpose of this utility model is to provide a kind of crankshaft arrangement of high leakproofness, it is to avoid the problem of bent axle oil leak.
To achieve these goals, the utility model provides a kind of crankshaft arrangement, and the crankshaft arrangement includes thering is mounting hole
Housing and rotationally through the mounting hole bent axle, the crankshaft arrangement also include first seal and second sealing
Part, the first seal is installed on the hole wall of the mounting hole, and the second seal is installed on the bent axle and is exposed to
End outside the housing simultaneously separates the first seal with the external world.
Preferably, the second seal includes：The base portion of annular, the base portion is around the end of the bent axle and consolidates
Due to the end；And flange, the flange is connected to the base portion and extended radially outwardly from the base portion.
Preferably, the second seal also includes afterbody, and the afterbody prolongs from the edge of the flange towards the housing
Stretch.
Preferably, the afterbody is in contact with the outer surface of the housing.The afterbody is provided with wearing layer.
Preferably, the radial dimension of the afterbody becomes larger towards the housing.
Preferably, the second seal includes metallic framework and coats the elastic layer on the metallic framework.
Preferably, the first seal is annular element, and the first seal is fixed on the hole wall of the mounting hole simultaneously
Outer peripheral face with the bent axle is in contact.
Preferably, the first seal includes：Dust excluder lips, the dust excluder lips are formed at the inner peripheral surface of the first seal
And be in contact with the outer peripheral face of the bent axle；Sealing lip, the sealing lip be formed at the inner peripheral surface of the first seal and with institute
The outer peripheral face for stating bent axle is in contact, and the sealing lip is located at the inner side of the dust excluder lips.
Preferably, the dust excluder lips biased outward extends；And/or the sealing lip extends towards inner side.
Preferably, the sealing lip is provided with threaded line towards inner side direction.
According to the application, sealed by the setting first seal on the hole wall of mounting hole and in crankshaft end second
Part, this crankshaft arrangement can effectively prevent extraneous dust from entering oil sealing, substantially increase the integral sealing effect of crankshaft oil seal, from
And avoid the problem of oil sealing oil leak.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following
Specific embodiment be used to explain the application together, but do not constitute to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the sectional view of the oil enveloping structure of bent axle
Fig. 2 is the sectional view of first seal
Fig. 3 is the sectional view of second seal
Description of reference numerals
The first seal of 1 second seal 2
The housing of 3 bent axle 4
The base portion of 5 mounting hole 11
The afterbody of 12 flange 13
The wearing layer of 14 metallic framework 15
The sealing lip of 21 dust excluder lips 22
The supporting part of 23 threaded line 24
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.
The utility model provides a kind of crankshaft arrangement, and the crankshaft arrangement is including the housing 4 with mounting hole 5 and rotationally
Through the bent axle 3 of the mounting hole 5, crankshaft arrangement also includes first seal 2 and second seal 1, and first seal 2 is installed
In on the hole wall of the mounting hole 5, the second seal 1 is installed on end of the bent axle 3 outside the housing 4 simultaneously
The first seal 2 is separated with the external world.
According to the application, sealed by the setting first seal on the hole wall of mounting hole and in crankshaft end second
Part, this crankshaft arrangement can effectively prevent extraneous dust from entering oil sealing, substantially increase the integral sealing effect of crankshaft oil seal, from
And avoid the problem of oil sealing oil leak.
As shown in Figure 1, it is shown that a kind of crankshaft arrangement of the present utility model, bent axle 3 is rotationally through the installation of housing 4
Hole 5, and by the end of bent axle 3 exposed to housing 4 outside, second seal 1 be arranged on bent axle 3 end and can be with song
The rotation of axle 3 and rotate, and second seal 1 by bent axle 3 rotate centrifugal force, extraneous dust is thrown away into oil sealing.
Specifically, second seal 1 can be various shapes, and e.g., section is the ring-type of circular or right angled triangle.
Preferably, the second seal 1 includes：The base portion 11 of annular, the base portion 11 is around the end of the bent axle 3
Portion and it is fixed on the end；With flange 12, the flange 12 is connected to the base portion 11 and extended radially outwardly from the base portion 11.
Base portion 11 is used to be fixed with the end of bent axle 3, and transmits bent axle 3 and rotate the centrifugal force for producing, and by the centrifugal force
Pass to flange 12.In order to prevent dust from entering bent axle, the second seal 1 also includes afterbody 13, the afterbody 13 from
The edge of the flange 12 extends towards the housing 4, and the radial dimension of the afterbody 13 gradually becomes towards the housing 4
Greatly.
When afterbody 13 extends to housing 4 and is in contact with the outer surface of housing 4, afterbody 13 can be with the appearance of housing 4
There is mutual active force in face, so afterbody 13 can form sealing well with housing 4, reaches and intercepts dust into housing 4
Effect.
When bent axle 3 is rotated, the second seal 1 for being arranged on the end of bent axle 3 can be overlapped on as bent axle 3 is rotated together
Afterbody 13 in the outer rim of housing 4 produces friction with housing 4.Further, in order to reduce friction, the resistance to of second seal 1 is improved
Mill property and service life, can increase the thickness of afterbody 13；Can also the side of afterbody 13 towards housing 4 face brush lubricant,
And lubricant needs often addition, inconvenience is used.
Preferably, the side of housing 4 is provided with wearing layer 15 in the afterbody 13, wearing layer 15 can be fixed and set
Put in the side of afterbody 13 towards the direction of housing 4, wearing layer 15 can reduce the friction of afterbody 13 and the outer rim of housing 4, and make
It is also long with the life-span, it is not necessary to often to change.Here, first seal 2, second seal 1, bent axle 3 and the common shape of housing 4
Into airtight cavity, prevent dust from entering.Preferably, wearing layer 15 uses PTFE materials.
Preferably, second seal 1 uses quality of rubber materials (it is also an option that metal material, such as the more commonly used cast iron),
Quality of rubber materials can allow afterbody 13 fitted with the outer rim of housing 4 more closely, and afterbody 13 rubbed and thickness reduction
In the case of, because rubber elasticity in itself can automatically compensate frictional dissipation, afterbody 13 can keep the shape of fitting with the outer rim of housing 4
State, prevents dust from entering airtight chamber.
On the premise of above-mentioned function requirement is met, second seal 1 can have various designs.Preferably, such as
Shown in Fig. 3, in order that the end for being fixed on bent axle 3 that second seal 1 can be more firm and be unlikely to deform, can be second
Framework is set in seal 1.Further, the second seal 1 includes metallic framework 14 and coats on the metallic framework 14
Elastic layer, this framework is preferably metallic framework 14 (or being set to plastic material), and further, the section of metallic framework 14 is excellent
Elect L shape as, just metallic framework 14 is supported on inside base portion 11 and flange 12.The cross sectional shape of metallic framework 14 is according to work
Situation can also be arc or fold-line-shaped etc., or, it is also possible to realized by selecting the material of different distortion modulus.
As shown in figure 3, by techniques such as vulcanizing treatments so that the fully wrapped around metallic framework 14 of elastic layer, be so conducive to
When second seal 1 is attached on the end of bent axle 3, metallic framework 14 will not be exposed due to elastic layer seam,
Cause the destruction of second seal 1.And, the face contacted with the end of bent axle 3 and the outer surface of housing 4 is all elastic layer,
So elastic layer can form good sealing effectiveness with the end of bent axle 3 and housing 4.
Preferably, the first seal 2 is annular element, and the first seal 2 is fixed on the hole wall of the mounting hole 5
And be in contact with the outer peripheral face of the bent axle 3.First seal 2 can be between bent axle 3 by mounting hole 5 and therethrough seam
Gap is sealed, and prevents in-engine machine oil from being flowed out by gap, also prevents dust from entering engine simultaneously.
As shown in Fig. 2 the first seal 2 includes：Dust excluder lips 21, the dust excluder lips 21 are formed at the first seal
2 inner peripheral surface is simultaneously in contact with the outer peripheral face of the bent axle 3；Sealing lip 22, the sealing lip 22 is formed at the first seal 2
Inner peripheral surface and be in contact with the outer peripheral face of the bent axle 3, the sealing lip 22 be located at the dust excluder lips 21 inner side.
Specifically, dust excluder lips 21 and the end away from bent axle 3 are stretched out in the end near bent axle 3 in first seal 2
Stretch out sealing lip 22, dust excluder lips 21 are prevented from dust into first seal 2, and dust excluder lips 21 and sealing lip 22 can be with
There is multiple, the effect according to sealing can increase and decrease.
Dust excluder lips 21 and the cross sectional shape of sealing lip 22 can have various shapes, such as, and straight line, curve or camber line.According to tool
The bearing of trend of the deflection direction of body situation, setting dust excluder lips 21 and sealing lip 22, dust excluder lips 21 and sealing lip 22 can be with one
Cause may be reversed.Here, it is contemplated that when bent axle 3 is rotated, deflection inner side of dust excluder lips 21 (i.e. away from the end of bent axle 3) extend meeting
Gather dust with the outer peripheral face angle of bent axle 3 in dust excluder lips 21 and be difficult to clear up.And sealing lip 22 towards outside (i.e. towards bent axle
3 end) extend sealing lip 22 and the gap between bent axle 3 and housing 4 can not be blocked, more machine oil oil can be caused
Gas overflows from housing 4, sealing effectiveness reduction.Preferably, the biased outward of the dust excluder lips 21 extends；And/or the sealing lip
22 extend towards inner side.
Here, in order to allow sealing lip 22 to form better seal effect with the outer peripheral face of bent axle 3, in the sealing lip
22 are provided with threaded line 23 towards inner side direction.When bent axle 3 is rotated, the machine oil in the middle of engine is due to by engine high-temperature
Influence can produce oil gas, and oil gas is entered between sealing lip 22 and bent axle 3 by the gap of bent axle 3 and housing 4, along threaded line
23 form very thin oil film, and oil film can play a part of to completely cut off outside air and engine.Specifically, when bent axle 3 is rotated
When, oil film produces pressure change near the two ends of outside air and engine, oil film is in dynamic equilibrium state：On the one hand, oil
Film is prevented from oil gas and crosses in the middle of the entrance airtight cavity of sealing lip 22 and air inlet, prevents oil vapour pollution air；The opposing party
Face, oil film is prevented from outside air to be crossed sealing lip 22 and enters engine, so as to the dust that it also avoid in air is brought into
Engine.
As depicted in figs. 1 and 2, first seal 2 is used cooperatively together with second seal 1.Preferably, dust excluder lips 21 set
Two are set to, sealing lip 22 is set to 1, sealing lip 22 is curved to be overlapped on the outer peripheral face of bent axle 3.Due to the end of bent axle 3
Portion sets second seal 1, it is to be understood that second seal 1 has been able to intercept dust in outside, it is impossible to enter close
Closed chamber body, so the quantity of the dust excluder lips 21 of first seal 2 is too many without setting, can increase and decrease regarding concrete condition, set herein
Two are set to, one is dust-proof consideration, also play a part of to support first seal 2 in addition.
It is understood that dust excluder lips 21 and sealing lip 22 are contacted with the outer peripheral face of bent axle 3 and support the periphery with bent axle 3
Face, first seal 2 includes also including supporting part 24 that the outer surface of supporting part 24 is supported on relative with the outer peripheral face of bent axle 3
On the face of housing 4, so, first seal 2 can just be mounted on the hole wall of mounting hole 5, better tightness.
When bent axle 3 is rotated, second seal 1 is rotated with bent axle 3, and due to the centrifugal force produced when bent axle 3 is rotated,
So that the dust fallen in second seal 1 is thrown out of.
It should be noted that the second seal 1 of this crankshaft arrangement can coordinate first seal 2 to be applied in combination, also may be used
To coordinate other sealing structures while using, second seal 1 can be used alone.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each
Plant possible combination and no longer separately illustrate that, as long as it is without prejudice to thought of the present utility model, it should equally be considered as this reality
Use new disclosure of that.
Claims (10)
1. crankshaft arrangement, it is characterised in that the crankshaft arrangement includes housing (4) with mounting hole (5) and rotationally runs through
The bent axle (3) of the mounting hole (5), the crankshaft arrangement also includes first seal (2) and second seal (1), described the
One seal (2) is installed on the hole wall of the mounting hole (5), and the second seal (1) is installed on the bent axle and is exposed to
The outer end of the housing (4) simultaneously separates the first seal (2) with the external world.
2. crankshaft arrangement according to claim 1, it is characterised in that the second seal (1) includes：
The base portion (11) of annular, the base portion (11) is around the end of the bent axle and is fixed on the end；With
Flange (12), the flange (12) is connected to the base portion (11) and is extended radially outwardly from the base portion (11).
3. crankshaft arrangement according to claim 2, it is characterised in that the second seal (1) also includes afterbody (13),
The afterbody (13) extends from the edge of the flange (12) towards the housing (4).
4. crankshaft arrangement according to claim 3, it is characterised in that the radial dimension of the afterbody (13) is towards the shell
Body (4) becomes larger.
5. crankshaft arrangement according to claim 4, it is characterised in that the appearance of the afterbody (13) and the housing (4)
Face is in contact, and the afterbody (13) is provided with wearing layer (15).
6. crankshaft arrangement according to claim 1, it is characterised in that the second seal (1) is including metallic framework
(14) and coat the metallic framework (14) on elastic layer.
7. the crankshaft arrangement according to any one in claim 1-6, it is characterised in that the first seal (2) is
Annular element, the first seal (2) is fixed on the hole wall of the mounting hole (5) and is in contact with the outer peripheral face of the bent axle.
8. crankshaft arrangement according to claim 7, it is characterised in that the first seal (2) includes：
Dust excluder lips (21), the dust excluder lips (21) be formed at the inner peripheral surface of the first seal (2) and with the periphery of the bent axle
Face is in contact；
Sealing lip (22), the sealing lip (22) be formed at the inner peripheral surface of the first seal (2) and with the periphery of the bent axle
Face is in contact, inner side of the sealing lip (22) positioned at the dust excluder lips (21).
9. crankshaft arrangement according to claim 8, it is characterised in that dust excluder lips (21) biased outward extends；And/or
The sealing lip (22) extends towards inner side.
10. crankshaft arrangement according to claim 9, it is characterised in that the sealing lip (22) is set towards inner side direction
There is threaded line (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409036.6U CN206268449U (en) | 2016-12-21 | 2016-12-21 | Crankshaft arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621409036.6U CN206268449U (en) | 2016-12-21 | 2016-12-21 | Crankshaft arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268449U true CN206268449U (en) | 2017-06-20 |
Family
ID=59046249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621409036.6U Expired - Fee Related CN206268449U (en) | 2016-12-21 | 2016-12-21 | Crankshaft arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764135A (en) * | 2018-12-25 | 2019-05-17 | 陕西润泽橡胶制品有限公司 | A kind of oil gas envelope of automatic pneumatic tire sealing |
-
2016
- 2016-12-21 CN CN201621409036.6U patent/CN206268449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764135A (en) * | 2018-12-25 | 2019-05-17 | 陕西润泽橡胶制品有限公司 | A kind of oil gas envelope of automatic pneumatic tire sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |