CN203906789U - Shaft sealing mechanism, sealing installation structure for steering shaft and underframe, and vehicle - Google Patents
Shaft sealing mechanism, sealing installation structure for steering shaft and underframe, and vehicle Download PDFInfo
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- CN203906789U CN203906789U CN201420279425.6U CN201420279425U CN203906789U CN 203906789 U CN203906789 U CN 203906789U CN 201420279425 U CN201420279425 U CN 201420279425U CN 203906789 U CN203906789 U CN 203906789U
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- axle
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- 238000007789 sealing Methods 0.000 title claims abstract description 148
- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000009434 installation Methods 0.000 title claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
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Abstract
The utility model discloses a shaft sealing mechanism, a sealing installation structure for a steering shaft and an underframe, and a vehicle. The shaft sealing mechanism comprises a first sealing layer (2), a second sealing layer (3) and a middle sound insulation layer (4) located between the first sealing layer (2) and the second sealing layer (3), and a shaft passing hole (5) is formed in the shaft sealing mechanism and penetrates through the first sealing layer (2), the middle sound insulation layer (4) and the second sealing layer (3) in sequence. According to the shaft sealing mechanism, the sealing performance is enhanced through the double sealing layers, the sound insulation effect is enhanced through the middle sound insulation layer, and noise, dust and the like can be better prevented from entering a cab.
Description
Technical field
The utility model relates to automotive field, particularly, relates to sealing installation structure and the corresponding vehicle of a kind of axial sealing mechanism, steering shaft and deck.
Background technique
Steering drive axle (be called for short " steering shaft ") is for being connected between the steering wheel in vehicle body and chassis commutator at the bottom of car.Wherein, on deck, need to design the hole of passing through for steering shaft, on this hole, need to install a kind of seal arrangement, sealing device and steering shaft are closely cooperated, thereby play good sealing function, and then noise in engine compartment, dust etc. cannot be imported in operator cabin by this hole.Yet existing steering shaft is through in the hole of deck, employing be the protecting cover sealing of individual layer, during noise test, find that the noise transmission at this place, hole is obvious, having influence on car load noise objective cannot be up to standard.Along with user improves constantly the requirement of noise in car, and auto cost constantly reduces, and more needs the sealing mechanism that has simultaneously to take into account sealability and noise reduction.
Model utility content
The purpose of this utility model is to provide a kind of axial sealing mechanism, and the steering shaft of this axial sealing mechanism and the sealing installation structure of deck and vehicle have been adopted, this axial sealing mechanism has strengthened sealability and soundproof effect, can stop better noise, dust etc. to import operator cabin into.
To achieve these goals, according to an aspect of the present utility model, a kind of axial sealing mechanism is provided, this axial sealing mechanism comprises the first sealing layer, the second sealing layer and the middle puigging between this first sealing layer and the second sealing layer, is also formed with the axle that runs through successively respectively described the first sealing layer, middle puigging and the second sealing layer and passes through hole in described axial sealing mechanism.
Preferably, described the first sealing layer and the second sealing layer locate to be formed with respectively by hole the lip seal structure of passing through the circumferencial direction in hole along this axle at described axle, and this lip seal structure can and be sealed and matched by formation between the outer surface of the axle in hole through described axle.
Preferably, the described axle at described middle puigging place is greater than through this axle by the diameter of the axle in hole by the aperture in hole.
Preferably, described the first sealing layer and the second sealing layer are elastic sleeve.
Preferably, described the first sealing layer and the second sealing layer include the annular seal that skeleton supports and forms by hole around described axle, and described skeleton supports from described annular seal and extends radially outwardly and undulate layout.
Preferably, this axial sealing mechanism also comprises frame, described the first sealing layer, described middle puigging and described the second sealing layer are successively set in described frame, and described the first sealing layer, described the second sealing layer and described middle puigging all extend to the inwall of described frame, and are connected with the inwall of described frame.
According on the other hand of the present utility model, the sealing installation structure of a kind of steering shaft and deck is provided, sealing mounting structure comprises steering shaft, deck, transition structure and according to axial sealing mechanism described in the utility model, described steering shaft is passed through hole through the described axle of described axial sealing mechanism, and described axial sealing mechanism can be arranged on described deck by described transition structure sealing.
Preferably, described transition structure can closely cooperate with the periphery of described frame, and becomes as a whole.
In addition, the utility model also provides a kind of vehicle, and this vehicle has the sealing installation structure of steering shaft recited above and deck.
Pass through technique scheme, the axial sealing mechanism that the utility model provides comprises the first sealing layer, the second sealing layer and the middle puigging between this first sealing layer and the second sealing layer, make original individual layer sealing means be improved to double-layer seal mode, strengthened sealability.Set up in addition the middle puigging between first, second sealing layer, promoted soundproof effect, thereby can stop better noise, dust etc. to import in operator cabin.
Other feature and advantage of the present utility model partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is according to the plan view of the axial sealing mechanism of preferred implementation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2.
Description of reference numerals
1 frame 2 first sealing layers
Puigging in the middle of 3 second sealing layers 4
5 axles are by hole 6 annular seal
7 skeletons support 61 lip seal structures
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the horizontal left and right directions of paper that " left and right " typically refers to.
As Figure 1-3, the utility model provides a kind of axial sealing mechanism, this axial sealing mechanism comprises the first sealing layer 2, the second sealing layer 3 and the middle puigging 4 between this first sealing layer 2 and the second sealing layer 3, in addition, in this axial sealing mechanism, be also formed with run through successively respectively the first sealing layer 2, middle puigging 4 and the second sealing layer 3 axle by hole 5.In the utility model, in order to realize sealing better, original individual layer sealing means in prior art is improved to double-layer seal mode, axial sealing mechanism comprises the first sealing layer 2 and the second sealing layer 3.In addition in order to promote soundproof effect, set up the middle puigging 4 between the first sealing layer 2 and the second sealing layer 3, the middle interior sound insulation by filling material of puigging 4 or sound absorbing material, especially, middle puigging 4 interior fillings be sound absorbing material, for example PU foam or EVA, have micropore a large amount of, that interpenetrate, from showing in sound absorbing material, also has certain gas permeability.When sound wave incides porous material surface, cause the air vibration in micropore, viscous resistance and conduction of heat due to surface friction drag and air, be converted into heat energy by quite a few acoustic energy, thereby play the effect of sound-absorbing.Therefore compared to existing technologies, can stop better noise, dust etc. to import in operator cabin.
Wherein, the first sealing layer 2 and the second sealing layer 3 are all preferably the elastic sleeve being set in steering shaft.When steering shaft is rotated generation extruding, can there is corresponding deformation in the first sealing layer 2 and the second sealing layer 3, and elastic sleeve plays the effect that elasticity is recovered, it can return to original shape by the deformation of generation fast, thereby can make steering shaft and the first sealing layer 2 and the second sealing layer 3 closely cooperate, strengthen sealability.
As a kind of preferred constructive form, as the first sealing layer 2 of elastic sleeve and the second sealing layer 3, include skeleton and support 7 and the annular seal 6 that forms by hole 5 around axle, skeleton supports 7 and extends radially outwardly and undulate is arranged from annular seal 6.Annular seal 6 is around the annular shape of steering shaft peripheral part, and skeleton supports 7 supporting effects of playing annular seal 6, and saves material.It can be a plurality of ribs or circular rib that skeleton supports 7.Skeleton supports 7 undulates layouts and has played better spring energy storage and supporting effect, makes the first sealing layer 2 and the second sealing layer 3 have more excellent counter-bending deformability.
Especially, the first sealing layer 2 and the second sealing layer 3 are preferably formed with respectively the lip seal structure 61 of passing through the circumferencial direction in hole 5 along this axle by 5 places, hole at axle, this lip seal structure 61 can and be sealed and matched by formation between the outer surface of the axle in hole 5 through axle.This lip seal structure 61 can be regarded as the seal lip of common Sealing.As shown in Figure 3, the first sealing layer 2 and the second sealing layer 3 and thinner annular joint through contacting formation between the steering shaft outer surface of axle by hole 5, be lip seal structure 61 to example.The aperture of this lip seal structure 61 is less than through axle by the diameter of the steering shaft in hole 5, can realize and being sealed and matched of steering shaft, and due to being sealed and matched of lip seal structure 61 and steering shaft, its sealing effect is strengthened, and the wall thickness of lip seal structure 61 is less, for relatively thick, lip seal structure 61 reduces with the area of contact of steering shaft, thereby more easily reduce the steering drag of steering shaft, when making the contact tightness reinforcement of the two, also make steering shaft more easily rotate.
Especially, the axle at middle puigging 4 places is greater than through this axle by the diameter of the axle in hole 5 by the aperture in hole 5, make by the axle in hole 5 and the axle at middle puigging 4 places, by hole 5, to realize Spielpassung through axle, thereby the axle by hole 5 can rotate freely in by hole 5 at the axle at middle puigging 4 places through axle, reduce the rotational resistance of steering shaft, made the rotation of steering shaft more convenient, laborsaving.
In addition, axial sealing mechanism also comprises frame 1, the first sealing layer 2, middle puigging 4 and the second sealing layer 3 are successively set in frame 1, and the first sealing layer 2, the second sealing layer 3 and middle puigging 4 all extend to the inwall of frame 1, and are connected with the inwall of frame 1.The first sealing layer 2, middle puigging 4 and the second sealing layer 3 are successively set in frame 1; make the first sealing layer 2, the second sealing layer 3 and middle puigging 4 is integrated is arranged in frame 1; become a part; thereby be easier to install; easy to use, also axial sealing mechanism is played to protection and supporting effect simultaneously.Shown in Fig. 3, skeleton supports the inner support annular seal 6 of 7, and outer end is connected with the inwall of frame 1.In a preferred embodiment, it is that sulfuration connects that skeleton support 7 is connected with the inwall of frame 1, makes skeleton support 7 high with the joint intensity of the inwall of frame 1, connects more firmly; Middle puigging 4 is general adopts the gluing mode connecing to be arranged in frame 1, adopts the gluing mode connecing simple to operate, impact and the good connecting effect of puigging 4 and frame 1 self material in the middle of not being subject to.
In addition, the utility model also provides the sealing installation structure of a kind of steering shaft and deck, sealing mounting structure comprises steering shaft (in accompanying drawing do not show), deck (not showing in accompanying drawing), transition structure (not showing in accompanying drawing) and according to axial sealing mechanism of the present utility model, steering shaft is passed through hole 5 through the axle of axial sealing mechanism, and axial sealing mechanism is sealed and is arranged on deck by transition structure.Because the kind of vehicle is different with size, thereby can select or customization is applicable to corresponding vehicle as required transition structure, thereby axial sealing mechanism is arranged on deck, strengthen the versatility of axial sealing mechanism, also made to seal the demand that mounting mechanism can meet various vehicles and various sizes.
Especially, transition structure can closely cooperate with the periphery of frame 1, and becomes as a whole.The periphery of transition structure and frame 1 closely cooperates frame 1 is played a protective role, and for example, transition structure is quality of rubber materials; and be enclosed in the periphery of frame 1; when running into stronger vibration, transition structure plays the effect of buffering and damping to frame 1, thereby has protected frame 1.Because transition structure and frame 1 can become as a whole, the two is coordinated closely, thereby axial sealing mechanism is arranged on deck more firmly again.
On above basis, the utility model provides a kind of vehicle, and this vehicle has according to the sealing installation structure of the above-mentioned steering shaft of the utility model and deck.Make vehicle in motion, can meet the requirement of user to the noise in operator cabin and dust etc., for user provides driving environment better.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, between various mode of execution of the present utility model, also can carry out combination in any, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. an axial sealing mechanism, it is characterized in that, this axial sealing mechanism comprises the first sealing layer (2), the second sealing layer (3) and is positioned at the middle puigging (4) between this first sealing layer (2) and the second sealing layer (3), in described axial sealing mechanism, be also formed with run through successively respectively described the first sealing layer (2), middle puigging (4) and the second sealing layer (3) axle by hole (5).
2. axial sealing mechanism according to claim 1, it is characterized in that, described the first sealing layer (2) and the second sealing layer (3) locate to be formed with respectively by hole (5) the lip seal structure (61) of passing through the circumferencial direction in hole (5) along this axle at described axle, and this lip seal structure (61) can and be sealed and matched through forming between the outer surface of described axle by the axle of hole (5).
3. axial sealing mechanism according to claim 1, is characterized in that, the described axle that described middle puigging (4) is located is greater than through this axle by the diameter of the axle in hole (5) by the aperture of hole (5).
4. axial sealing mechanism according to claim 1, is characterized in that, described the first sealing layer (2) and the second sealing layer (3) are elastic sleeve.
5. axial sealing mechanism according to claim 4, it is characterized in that, the annular seal (6) that described the first sealing layer (2) and the second sealing layer (3) include skeleton support (7) and form by hole (5) around described axle, described skeleton supports (7) and extends radially outwardly and undulate layout from described annular seal (6).
6. according to the axial sealing mechanism described in any one in claim 1-5, it is characterized in that, this axial sealing mechanism also comprises frame (1), described the first sealing layer (2), described middle puigging (4) and described the second sealing layer (3) are successively set in described frame (1), and described the first sealing layer (2), described the second sealing layer (3) and described middle puigging (4) all extend to the inwall of described frame (1), and are connected with the inwall of described frame (1).
7. the sealing installation structure of a steering shaft and deck, it is characterized in that, sealing mounting structure comprises steering shaft, deck, transition structure and axial sealing mechanism according to claim 6, described steering shaft is passed through hole (5) through the described axle of described axial sealing mechanism, and described axial sealing mechanism can be arranged on described deck by described transition structure sealing.
8. sealing installation structure according to claim 7, is characterized in that, described transition structure can closely cooperate with the periphery of described frame (1), and becomes as a whole.
9. a vehicle, is characterized in that, this vehicle has according to the sealing installation structure of the steering shaft described in claim 7 or 8 and deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279425.6U CN203906789U (en) | 2014-05-28 | 2014-05-28 | Shaft sealing mechanism, sealing installation structure for steering shaft and underframe, and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279425.6U CN203906789U (en) | 2014-05-28 | 2014-05-28 | Shaft sealing mechanism, sealing installation structure for steering shaft and underframe, and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906789U true CN203906789U (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420279425.6U Expired - Lifetime CN203906789U (en) | 2014-05-28 | 2014-05-28 | Shaft sealing mechanism, sealing installation structure for steering shaft and underframe, and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088269A (en) * | 2018-07-25 | 2020-12-15 | Nok株式会社 | Sealing device |
| CN112105852A (en) * | 2018-07-25 | 2020-12-18 | Nok株式会社 | Sealing device |
-
2014
- 2014-05-28 CN CN201420279425.6U patent/CN203906789U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088269A (en) * | 2018-07-25 | 2020-12-15 | Nok株式会社 | Sealing device |
| CN112105852A (en) * | 2018-07-25 | 2020-12-18 | Nok株式会社 | Sealing device |
| CN112088269B (en) * | 2018-07-25 | 2023-02-28 | Nok株式会社 | Sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |