CN204164359U - Seal arrangement - Google Patents
Seal arrangement Download PDFInfo
- Publication number
- CN204164359U CN204164359U CN201420533413.1U CN201420533413U CN204164359U CN 204164359 U CN204164359 U CN 204164359U CN 201420533413 U CN201420533413 U CN 201420533413U CN 204164359 U CN204164359 U CN 204164359U
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- CN
- China
- Prior art keywords
- seal arrangement
- axis
- centered
- lip
- sealed
- 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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Abstract
The utility model provides a kind of seal arrangement, and it can prevent the foreign matter such as stone or muddy water from invading and can be easily discharged to the outside by this foreign matter when foreign matter enters.Seal arrangement (1) have the main body (2) formed in the form of a ring and by elastomer centered by axis (x), the stiffening ring (3) formed in the form of a ring and by metal centered by axis (x) and centered by axis (x) in the form of a ring and as the guard member (4) of guard block.Guard member (4) is formed as being embedded in main body (2) inside it, outer side covers sealed department (6).Guard member (4) has internal diameter along the diameter reducing part (41) of axis (x) undergauge and cylindric auxiliary section (42).
Description
Technical field
The utility model relates to seal arrangement, the seal arrangement particularly for sealing between outer cover (casing) and axle in the differential mechanism of vehicle.
Background technique
In the past, in the differential mechanism (differential motion) of the vehicles such as automobile, in order to sealing between outer cover and live axle is used seal arrangement.Fig. 3 is the sectional view of the structure representing this kind seal arrangement in the past.
As shown in Figure 3, seal arrangement 100 is in the past disposed in the annular gap 104 between the axis hole 102 of the outer cover 101 of differential mechanism and live axle 103, is sealed in this gap 104.Seal arrangement 100 is the tubular shape centered by axis, the main body 106 be made up of rubber material having ring-type stiffening ring 105 and be integrally formed in the mode covering stiffening ring 105.Main body 106 has assembly department 107 at outer circumferential side, has sealed department 108 in inner circumferential side.Seal arrangement 100 is installed on outer cover 101 by being engaged in by assembly department 107 in axis hole 102.The outer circumferential face 107a of assembly department 107 and the side face of axis hole 102 touch.In addition, sealed department 108 has the sealed lip 109 abutted with the side face of live axle 103 in liquid-tight manner.
Seal arrangement 100 has the trumpet-shaped metal guard member 110 centered by axis.Guard member 110 is engaged in the inner peripheral surface of assembly department 107, protection sealed lip 109.Specifically, when assembled seal 100, when preventing live axle 103 to insert seal arrangement 100, live axle 103 and sealed lip 109 occur disturb and make sealed lip 109 impaired.In addition, when vehicle travels, prevent seal arrangement 100 because of slungshot etc. impaired.
Model utility content
But in seal arrangement 100 in the past, guard member 110 cannot prevent the foreign matters such as muddy water from invading.In addition, when the foreign matters such as muddy water enter the space between sealed department 108 and live axle 103 or the space between guard member 110 and live axle 103, be difficult to this foreign matter to be discharged to the outside.
In order to solve above-mentioned problem, the purpose of this utility model is to provide one can prevent the foreign matter such as stone or muddy water from invading, and can easily by seal arrangement that this foreign matter is discharged to the outside when foreign matter enters.
To achieve these goals, seal arrangement of the present utility model has the main body formed by elastomer, this main body there is the opening that is embedded in attached portion and centered by axis assembly department in the form of a ring and the sealed department that can touch with the outer circumferential face of axle of the opening inserting described attached portion slidably, sealing portion to have centered by described axis sealing lip in the form of a ring, it is characterized in that, described seal arrangement have be embedded in described assembly department and centered by described axis guard block in the form of a ring, this guard block has the diameter reducing part to the direction undergauge with sealed object thing opposite side, this diameter reducing part covers described sealed department in the side contrary with sealed object thing.
In the seal arrangement of a scheme of the present utility model, described guard block covers described sealed department in the mode of clearance space.
In the seal arrangement of a scheme of the present utility model, described diameter reducing part have straight line shape undergauge tapered portion and from the path end of this tapered portion to described Axis Extension and in the 1st discoideus lip part centered by described axis.
In the seal arrangement of a mode of the present utility model, described diameter reducing part have from the end of inner circumferential side to the direction of described sealed object thing extended and centered by described axis the 2nd lip part in the form of a ring.
In the seal arrangement of a mode of the present utility model, described guard block has the cylindric auxiliary section centered by described axis, and described guard block is embedded in described assembly department with described auxiliary section.
In the seal arrangement of a mode of the present utility model, described guard block has at least 1 impenetrating mouth at described diameter reducing part.
In the seal arrangement of a mode of the present utility model, described impenetrating mouth is to the direction opening left from described axis.
In the seal arrangement of a mode of the present utility model, described sealing lip has the ridge body protruded to described axis.
In the seal arrangement of a mode of the present utility model, described attached portion is the outer cover of the differential motion of vehicle, and described axle is the live axle of described differential motion.
According to seal arrangement of the present utility model; be embedded in assembly department and centered by axis guard block in the form of a ring with the diameter reducing part towards the direction undergauge with sealed object thing opposite side; sealed department is covered, so can prevent the foreign matter such as stone or muddy water from invading sealed department in the side contrary with sealed object thing.
According to seal arrangement of the present utility model, due to guard block clearance space cover sealed department, so guard block can not disturb sealed department, the followability of harmless sealed department, can maintain sealability and can prevent the foreign matter such as stone or muddy water from invading sealed department.
According to seal arrangement of the present utility model; diameter reducing part have straight line shape undergauge tapered portion and from the path end of this tapered portion to Axis Extension and in the 1st discoideus lip part centered by axis, so guard block can be reduced and can prevent the foreign matter such as stone or muddy water from invading sealed department.
According to seal arrangement of the present utility model, diameter reducing part have from the end of inner circumferential side to the direction of sealed object thing extended and centered by axis the 2nd lip part in the form of a ring, so also can sealed department be covered near axle, can more effectively prevent the foreign matter such as stone or muddy water from entering sealed department.
According to seal arrangement of the present utility model, because guard block is embedded in assembly department by the cylindric auxiliary section centered by axis, so reliably guard block can be fixed on seal arrangement.
According to seal arrangement of the present utility model, guard block has at least 1 impenetrating mouth at diameter reducing part, even if so the foreign matter such as stone or muddy water invades the inside of guard block, also easily can be discharged by foreign matter by impenetrating mouth.
According to seal arrangement of the present utility model, because impenetrating mouth is to the direction opening left from axis, so impenetrating mouth can be passed more readily, foreign matter is discharged.
According to seal arrangement of the present utility model, because sealing lip has the ridge body protruded to axis, so can seal between seal arrangement and axle.
Accompanying drawing explanation
Fig. 1 is the sectional view in the cross section of the axis along seal arrangement of the concise and to the point formation of the seal arrangement representing the utility model mode of execution.
Fig. 2 is the partial section of the using state of the seal arrangement representing the utility model mode of execution.
Fig. 3 is the sectional view of the structure of the seal arrangement represented in the past.
Symbol description
1,100 seal arrangements
2,106 main bodys
3,105 stiffening rings
4,110 guard members
5,107 assembly departments
6,108 sealed departments
21 joints
22 lip parts
22a inner side surface
23 recesses
31 cylindrical part
32 plectane portions
32a the 1st plectane portion
32b the 2nd plectane portion
32c joint
41 diameter reducing parts
42 auxiliary sections
43 tapered portion
44 the 1st lip parts
45 the 2nd lip parts
46 impenetrating mouths
51,107a outer circumferential face
52 interference portions
61,109 sealed lips
62 dirt lip
63 lip front ends
64 recesses
65 springs
71,101 outer covers
72,102 axis holes
73,103 live axles
74 inner peripheral surfaces
75 outer circumferential faces
76,104 gaps
77 outer side surfaces
107a outer circumferential face
X axis
Embodiment
Below, mode of execution of the present utility model is described in detail with reference to accompanying drawing.
Fig. 1 is the sectional view in the cross section of the axis along seal arrangement of the brief configuration of the seal arrangement representing the utility model mode of execution.
As shown in Figure 1, the seal arrangement 1 of mode of execution of the present utility model have the main body 2 formed in the form of a ring and by elastomer centered by axis x, the stiffening ring 3 formed in the form of a ring and by metal centered by axis x, centered by axis x in the form of a ring and as the guard member 4 of guard block.As the elastomer of main body 2, such as, there is various rubber material, the synthetic rubber such as such as nitrile butadiene rubber (NBR), hydrogenated nitrile-butadiene rubber (H-NBR), acrylate rubber (ACM), fluorine rubber (FKM).As the metal of stiffening ring 3, such as, there are stainless steel or SPCC (cold rolled steel).Guard member 4 is also metal, such as, be stainless steel or SPCC (cold rolled steel) system.
The assembly department 5 that main body 2 has the opening being embedded in the attached portion such as outer cover or housing (housing) and the sealed department 6 that can touch with the outer circumferential face of the axle inserting main body 2 slidably.
Assembly department 5 be in main body 2, be positioned at outer circumferential side and centered by axis x annulus cylindrically.Side face and the outer circumferential face 51 of the outer circumferential side of assembly department 5 delimited based on interference portion 52, and described interference portion 52 has the thickness (radial dimension) corresponding with the opening size of not shown attached portion.Herein, for convenience of explanation, so-called outside is arrow a (see Fig. 1) direction in axis x direction, and so-called inner side is arrow b (see Fig. 1) direction in axis x direction.That is, so-called inner side, refers in a state of use, and towards the direction in the region existing for lubrication wet goods sealed object thing, so-called outside, refers to and not exist towards sealed object thing or to make the direction in the non-existent region of sealed object thing.In addition, in the direction perpendicular to axis x, with the direction left from axis x (the arrow c direction of Fig. 1) for outer circumferential side, with the direction (the arrow d direction of Fig. 1) close to axis x for inner circumferential side.
Sealed department 6 in main body 2, is positioned at inner circumferential side and the annulus of cylindrical shape centered by axis x, has along axis x to inward side to the sealed lip 61 extended.Sealed department 6 is as described below, in sealed lip 61, and inner circumferential surface more undergauge more to the inside.In addition, sealed department 6 has the dirt lip 62 for preventing the foreign matters such as dust from entering the abutting part of sealed lip 61 and axle (not shown) in outside.In present embodiment, be provided with 2 dirt lip 62.Dirt lip 62 as shown in Figure 1, is the ring-shaped member centered by axis x, tilts to extend outside the inside circumferential direction of the inner peripheral side end portion of sealed department 6.
Sealed lip 61 is all sides within it, and the part in inner side has lip front end 63.As shown in Figure 1, the shape comprising the cross section (being also only called cross section below) of axis x is the wedge shape that inside circumferential direction is protruded to lip front end 63, is the ring-type ridge body centered by axis x.Lip front end 63 is all sides front end within it, abuts in liquid-tight manner with the outer circumferential face of not shown axle, thus seals between seal arrangement 1 and axle at this abutting part.
In addition, sealed lip 61 has annular recessed portion 64 at the mask of the outer circumferential side opposed with lip front end 63.This recess 64 is accommodated with the ring-spring 65 that seal arrangement 1 has, and inside circumferential direction applies power to lip front end 63.
In addition, as shown in Figure 1, main body 2 to have centered by axis x in the form of a ring and cross section is the joint 21 of roughly L-shaped and the circular-plate-shaped flange portion 22 centered by axis x that extends from the outboard end of assembly department 5 between assembly department 5 and sealed department 6.The outboard end of the inner end of assembly department 5 with sealed department 6 is connected by joint 21.As shown in Figure 1, utilize this assembly department 5 and the shape of joint 21, between the assembly department 5 and joint 21 of main body 2, form the annular recessed portion 23 centered by axis x.
Stiffening ring 3 is covered by main body 2, is integrated with main body 2 one-tenth, strengthens main body 2.The cross section of stiffening ring 3 is roughly U-shaped, has the sectional shape corresponding with the sectional shape of main body 2.Specifically, the sectional shape of stiffening ring 3 is corresponding with the sectional shape of assembly department 5, joint 21 and lip part 22, has following part: the U-shaped part being positioned at the inside of assembly department 5 and joint 21; Inner and the part extended to the direction at a right angle with axis x of joint between sealed department 6 and joint 21; Be positioned at the inside of lip part 22 and the part extended to the direction at a right angle with axis x.Should illustrate, as long as the structure that stiffening ring 3 can be strengthened main body 2, can be that a part for stiffening ring 3 is covered by main body 2, also can be that whole stiffening ring 3 is covered by main body 2.
Stiffening ring 3 is such as manufactured by punch process or forging, and main body 2 uses forming die to come shaping by sulfidization molding.When this sulfidization molding, stiffening ring 3 is configured in forming die, and stiffening ring 3 is shaping integratedly with main body 2.
Guard member 4 as shown in Figure 1, is formed as being embedded in main body 2 inside it, outer side covers sealed department 6.Below, the shape of the guard member 4 as the guard block of sealed department 6 is illustrated.
Guard member 4 is described above, is the lamellar parts of the ring-type centered by axis x, has internal diameter along the diameter reducing part 41 of axis x undergauge and cylindric auxiliary section 42.
Diameter reducing part 41 has tapered portion 43, the 1st lip part 44 and the 2nd lip part 45.Tapered portion 43 is that ground reduces the tapering portions of (undergauge) gradually along axis x from Inside To Outside linarity for the size (radius) of the cross section middle distance axis x vertical with axis x.1st lip part 44 is from the outboard end of tapered portion 43 and axis x vertically towards the hollow circular plate like portion of axis x, the 2nd lip part 45 be from the inner peripheral side end portion of the 1st lip part 44 in axis x direction to inward side to the annulus extended.Do not disturb with sealed department 6 or joint 21 with diameter reducing part 41, and the mode forming space between diameter reducing part 41 and sealed department 6 and joint 21 sets shape and the size of diameter reducing part 41.In addition, the 1st lip part 44 and the 2nd lip part 45 set shape and size in the mode do not disturbed with the axle inserting sealed lip 61 under using state (installment state).
In addition, set shape, the particularly tapered portion 43 of diameter reducing part 41 and the shape of the 1st lip part 44 and size as follows, namely, when axle is inserted sealed lip 61, do not occur because axle contacts with sealed lip 61 or dirt lip 62 and damages sealed lip 61 or dirt lip 62.
In addition, as shown in Figure 1, at least 1 impenetrating mouth 46 is formed at diameter reducing part 41.In present embodiment, in the tapered portion 43 of diameter reducing part 41, equally spaced form multiple impenetrating mouth 46 at circumferencial direction.Impenetrating mouth 46 is to the direction opening left from axis x.
As shown in Figure 1, auxiliary section 42 extends from the inner end of tapered portion 43 to the inside in axis x direction, in the recess 23 of main body 2, be embedded in assembly department 5.Guard member 4 is installed on main body 2 securely by the cooperation of this auxiliary section 42.
Below, the using state of the seal arrangement 1 with above-mentioned formation is described.The seal arrangement 1 of present embodiment is applicable to the live axle of the differential mechanism of the vehicles such as automobile.More specifically, the gap between seal arrangement 1 outer cover that is disposed in differential mechanism and the live axle inserting in this outer cover is with by this clearance seal.
Fig. 2 is the partial section of the using state of the seal arrangement 1 representing above-mentioned mode of execution of the present utility model.
As shown in Figure 2, the outer cover 71 as the differential mechanism of attached portion has the axis hole 72 as cylindric opening, and live axle 73 inserts this axis hole 72.Gap 76 between the surface and outer circumferential face 75 of the face of the inner circumferential of axis hole 72 and inner peripheral surface 74 and live axle 73, is provided with seal arrangement 1 to be sealed in this gap 76.
Specifically, seal arrangement 1 is by being embedded in the axis hole 72 of housing 71 by assembly department 5 and being installed on housing 71.More specifically, the outer circumferential face 51 of assembly department 5 touches with the inner peripheral surface 74 of axis hole 72, the interference portion 52 of assembly department 5 is compressed between the inner peripheral surface 74 of stiffening ring 3 and axis hole 72, thus seal arrangement 1 is matched with housing 71 and is firmly fixed.In addition, live axle 73 is inserted through sealed lip 61, and the lip front end 63 of sealed lip 61 abuts in liquid-tight manner with the outer circumferential face 75 of live axle 73.Gap 76 is sealed by utilizing the abutting of the cooperation of this assembly department 5 and lip front end 63.In addition, face and the outer side surface 77 in the face of the inner side of the lip part 22 of main body 2 and inner side surface 22a and the outside of outer cover 71 abut, thus seal arrangement 1 is located in axis x direction and is fixed on outer cover 71.
As shown in Figure 2, live axle 73 inserts the opening that the 1st flange 44 of guard member 4 and the 2nd flange 45 are formed, and as mentioned above, makes guard member 4 not disturb live axle 73.
As mentioned above, according to seal arrangement 1 of the present utility model, the diameter reducing part 41 of guard member 4 covers sealed department 6 in the side contrary with sealed object thing, so can prevent the foreign matter such as stone or muddy water from invading near sealed department 6, particularly lip front end 63.
In addition, the diameter reducing part 41 clearance space ground of guard member 4 covers sealed department 6, so guard member 4 can not disturb sealed department 6, and the followability of harmless sealed department 6 pairs of live axles 73.Therefore, the sealability of sealed department 6 can be maintained, and can prevent the foreign matter such as stone or muddy water from invading sealed department.
Diameter reducing part 41 has the tapered portion 43 of straight line shape undergauge and discoideus 1st lip part, so can reduce guard member 4, and can prevent the foreign matter such as stone or muddy water from invading sealed department 6.
Diameter reducing part 41 has the 2nd lip part 45, so can cover sealed department 6 near live axle 73, and can more effectively prevent the foreign matter such as stone or muddy water from invading sealed department 6.
Guard member 4 has at least 1 impenetrating mouth 46 at diameter reducing part 41, even if so the foreign matter such as stone or muddy water invades the inside of guard member 4, also easily can be discharged to the outside by foreign matter by this impenetrating mouth 46.
Impenetrating mouth 46 to the direction opening left from axis x, so more easily foreign matter can be discharged to the outside by impenetrating mouth 46.
Guard member 4 plays function due to the 1st flange 44 and the 2nd flange 45 as the guide rod for inserting live axle 73, so when being installed on vehicle, easily live axle 73 can be inserted sealed lip 61.
Above, describe mode of execution of the present utility model, but the utility model is not limited to above-mentioned mode of execution of the present utility model, all schemes that the claims comprising concept of the present utility model and model utility comprise.In addition, in order to realize above-mentioned problem and effect at least partially, suitably each formation can optionally be combined.Such as, the shape, material, configuration, size etc. of each constituting component of above-mentioned mode of execution suitably can change according to concrete usage mode of the present utility model.Specifically, the shape of assembly department 5 or sealed department 6, stiffening ring 3 is not limited to above-mentioned shape.
In addition, the shape of guard member 4 is also not limited to above-mentioned shape.Such as, at diameter reducing part 41, the shape of tapered portion 43 is not limited to the shape along axis x undergauge point-blank, can carry out undergauge in parabolical mode, and the sectional shape of tapered portion 43 also can rectilinear form unlike Fig. 1, but curve shape.
1st lip part 44 can not be the hollow circular plate like portion vertical with axis x, but has relative to axis x the hollow circular plate like portion that predetermined angular forms inclination.The sectional shape of the 1st lip part 44 can rectilinear form unlike Fig. 1, but curve shape.
Equally, the 2nd lip part 45 can not be the cylindrical portion extended along axis x direction, but has relative to axis x the annulus that predetermined angular forms inclination.The sectional shape of the 2nd lip part 45 can rectilinear form unlike Fig. 1, but curve shape.
In addition, the shape of the auxiliary section 42 of guard member 4 is not limited to drum.As long as guard member 4 can coordinate and be fixed on the shape of assembly department 5 by the shape of auxiliary section 42.
The position of the impenetrating mouth 46 of guard member 4 is not limited to tapered portion 43.Such as, only can be arranged on the 1st lip part 44, also can be arranged on tapered portion 43 and the 1st lip part 44.
In addition, the seal arrangement 1 of present embodiment be applicable to differential mechanism outer cover and be inserted through this outer cover opening live axle between gap, but the applicable object of seal arrangement of the present utility model is not limited thereto.The utility model can be applicable to all formations of the effect that the utility model can be utilized to play.
Claims (11)
1. a seal arrangement, it has the main body formed by elastomer, this main body there is the opening that is embedded in attached portion and centered by axis assembly department in the form of a ring and the sealed department that can touch with the outer circumferential face of axle of the opening inserting described attached portion slidably, sealing portion has the annular seal lip centered by described axis, the feature of described seal arrangement is
Described seal arrangement have be embedded in described assembly department and centered by described axis guard block in the form of a ring; this guard block has the diameter reducing part to the direction undergauge with sealed object thing opposite side, and this diameter reducing part covers described sealed department in the side contrary with described sealed object thing.
2. seal arrangement as claimed in claim 1, it is characterized in that, described guard block covers described sealed department in the mode of clearance space.
3. seal arrangement as claimed in claim 1 or 2, is characterized in that, described diameter reducing part have straight line shape undergauge tapered portion and from the path end of this tapered portion to described Axis Extension and in the 1st discoideus lip part centered by described axis.
4. seal arrangement as claimed in claim 3, is characterized in that, described diameter reducing part have from the end of inner circumferential side to the direction of described sealed object thing extended and centered by described axis the 2nd lip part in the form of a ring.
5. seal arrangement as claimed in claim 1, it is characterized in that, described guard block has the cylindric auxiliary section centered by described axis, and described guard block is embedded in described assembly department with described auxiliary section.
6. the seal arrangement according to any one of claim 1,2,4 or 5, it is characterized in that, described guard block has at least 1 impenetrating mouth at described diameter reducing part.
7. seal arrangement as claimed in claim 3, it is characterized in that, described guard block has at least 1 impenetrating mouth at described diameter reducing part.
8. seal arrangement as claimed in claim 6, it is characterized in that, described impenetrating mouth is to the direction opening left from described axis.
9. seal arrangement as claimed in claim 7, it is characterized in that, described impenetrating mouth is to the direction opening left from described axis.
10. seal arrangement as claimed in claim 1, it is characterized in that, described sealing lip has the ridge body protruded to described axis.
11. seal arrangements as claimed in claim 1, it is characterized in that, described attached portion is the outer cover of the differential motion of vehicle, and described axle is the live axle of described differential motion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-003192U | 2014-06-17 | ||
| JP2014003192U JP3193243U (en) | 2014-06-17 | 2014-06-17 | Sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164359U true CN204164359U (en) | 2015-02-18 |
Family
ID=52538048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420533413.1U Expired - Fee Related CN204164359U (en) | 2014-06-17 | 2014-09-16 | Seal arrangement |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3193243U (en) |
| CN (1) | CN204164359U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9927031B2 (en) | 2014-11-18 | 2018-03-27 | Nok Corporation | Sealing structure |
| JP6625340B2 (en) * | 2015-04-14 | 2019-12-25 | Nok株式会社 | Sealing device |
-
2014
- 2014-06-17 JP JP2014003192U patent/JP3193243U/en active Active
- 2014-09-16 CN CN201420533413.1U patent/CN204164359U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3193243U (en) | 2014-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20170916 |