CN203438791U - Vehicle rotary seal device adopting metal - Google Patents
Vehicle rotary seal device adopting metal Download PDFInfo
- Publication number
- CN203438791U CN203438791U CN201320511759.7U CN201320511759U CN203438791U CN 203438791 U CN203438791 U CN 203438791U CN 201320511759 U CN201320511759 U CN 201320511759U CN 203438791 U CN203438791 U CN 203438791U
- Authority
- CN
- China
- Prior art keywords
- rings
- ring
- seat ring
- interior ring
- seat
- 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 - Lifetime
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Abstract
The utility model belongs to the field of seal devices, and particularly relates to a vehicle rotary seal device adopting metal. The vehicle rotary seal device adopting the metal comprises a hub, two inner rings located in an inner cavity of the hub, two seating rings, a spindle head, oil seals between the seating rings and the inner rings, first O-shaped rings between the seating rings and the hub, second O-shaped rings between the inner rings and the spindle head as well as a gas channel connected among the inner rings, the seating rings, the hub and the spindle head. The vehicle rotary seal device adopting the metal is characterized in that the contacted surfaces of the inner rings and the seating rings adopt annular conical surfaces. According to the rotary seal device, sealing components with the structure adopts a metal material for seal, and the contact of sealing points adopts surface contact, so that the service life is prolonged substantially, and the device is maintenance-free.
Description
Technical field
The utility model belongs to sealing arrangement field, is specifically related to a kind of Vehicular metal rotary sealing appts.
Background technology
For improving special vehicle and field work engineering truck for the comformability under the complicated driving conditions such as soft arable land, desert, snow deposit, marsh, need vehicle that the function of filling, exitting for tire in driving process is provided, with crossing ability and the safety that guarantees that vehicle is good.Special vehicle and field work require vehicle under parking or motoring condition, automatically to complete the adjustment of tire pressure, and key is the leak tightness of tire automatic inflatable/air system.
The rotary sealing appts that existing tire automatic inflatable/air system adopts is to adopt the non-metallic materials such as rubber or polytetrafluoroethylene as containment member, and sealing envelope lip contacts with spindle nose, after the wearing and tearing of sealing envelope fitting surface, needs to change spindle nose assembly, and maintenance is complicated, cost is high.Because lip adopts non-metallic material, lip this also can Fast Wearing with metal friction under high pressure gas effect, after wearing and tearing, containment member damages, seal failure.The general life-span of rotary sealing appts is not high, needs periodic replacement.Need to improve for above-mentioned defect.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of good airproof performance, long service life, Vehicular metal rotary sealing appts non-maintaining and simple in structure.
Vehicular metal rotary sealing appts of the present utility model is realized by following technical proposals:
A rotary sealing appts, comprises wheel hub, is arranged in two rings and two seat rings of wheel hub inner chamber, also comprises the air flue that is positioned at wheel hub, and air flue is communicated in spindle nose, seat ring, interior ring, wheel hub,
In two, ring is respectively about the vertical plane symmetry at the place, center of air flue, and two seat rings are also about the vertical plane symmetry at place, air flue center;
Interior ring is arranged between seat ring and spindle nose;
Between seat ring and wheel hub by between an O type circle static sealing, interior ring and spindle nose by the 2nd O type circle static sealing,
Improvements of the present utility model are, the face contacting between interior ring and seat ring is designed to circular cone.
Between two seat rings, be provided with intercommunicating pore and wheel hub air flue UNICOM;
Interior ring and spindle nose circumferencial direction are fixed, and axially can have trace mobile;
Between two interior rings, being provided with intercommunicating pore is communicated with spindle nose air flue;
Below circular cone, have two oil sealings, these two oil sealings are about the vertical plane symmetry at place, air flue center.
Between interior ring and seat ring, there is grease.
The material of interior ring and seat ring is copper alloy.
During work, in the air flue of interior ring, be full of high pressure gas, interior ring moves axially compression seat ring under gaseous tension, and interior ring and seat ring contact surface adopt taper anchor ring, guarantee the sealing of air flue cavity under thrust, interior ring and seat ring adopt metal antifriction material, improve service life, the circular cone cone angle of interior ring and seat ring designs according to seal gas pressure, and the coning angle of circular cone is 10-60 °, preferably, the coning angle of circular cone is 30 ° or 45 °.
The beneficial effects of the utility model are, existing product sealing element adopts the non-metallic materials such as rubber or polytetrafluoroethylene, and seal point is line contact, and the life-span is short, needs periodic replacement; The utility model adopted said structure sealing element adopt metallic material sealing, the contact of seal point is face contact, significantly improves service life, non-maintaining.
Accompanying drawing explanation
Fig. 1 is Vehicular metal rotary sealing appts structural representation of the present utility model;
In figure, 1-wheel hub, 2-the one O type circle, 3-seat ring, ring in 4-, 5-the 2nd O type circle, 6-spindle nose, 7-oil sealing, 8-air flue.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described, so that those skilled in the art understand the utility model.
Embodiment 1
A kind of Vehicular metal rotary sealing appts, for the drive axle air-charging and air-discharging system of special vehicle, comprise wheel hub 1, spindle nose 6, air flue 8, two seat rings 3 that are symmetric about the vertical plane at place, air flue center, about the vertical plane at place, air flue center, be symmetric two in encircle 4, the oil sealing 7 between seat ring 3 and interior ring 4; Ring 4, seat ring 3, wheel hub 1, spindle nose 6 in air flue is communicated with;
Seat ring 3 and interior ring 4 are arranged on respectively in wheel hub 1 inner chamber;
The face contacting between interior ring 4 and seat ring 3 is designed to circular cone, and its effect is when rotation relatively, to seal the high pressure gas in air flue.
Between seat ring 3 and wheel hub 1, adopt O type circle 2 static sealings;
Interior ring 4 is arranged between seat ring 3 and spindle nose 6, adopts the 2nd O type circle 5 static sealings between interior ring 4 and spindle nose 6;
Oil sealing 7 is installed between seat ring 3 and interior ring 4, for sealing without pressure grease.
Interior ring 4 and seat ring 3 adopt copper lead alloy, between interior ring 4 and seat ring 3, fill a small amount of grease.
Interior ring 4 can be according to the pressure design of blanketing gas with the circular cone of seat ring 3, and the coning angle of circular cone is 45 °.
High pressure gas are from air flue 8, and interior ring 4 compresses seat ring 3 under gaseous tension simultaneously, plays sealing function.
The air flue 8 of spindle nose 6, the air flue 8 of interior ring 4, the air flue 8 of seat ring 3 and the air flue of wheel hub 18 are communicated with, and complete inflation/deflation operation;
Due to interior ring 4 with seat ring 3 each other for the conical surface contacts, between interior ring 4 and seat ring 3, can relatively rotate.
Embodiment 2
A kind of Vehicular metal rotary sealing appts, for the drive axle air-charging and air-discharging system of special vehicle, comprise wheel hub 1, spindle nose 6, air flue 8, two seat rings 3 that are symmetric about the vertical plane at place, air flue center, about the vertical plane at place, air flue center, be symmetric two in encircle 4, the oil sealing 7 between seat ring 3 and interior ring 4; Ring 4, seat ring 3, wheel hub 1, spindle nose 6 in air flue is communicated with;
Seat ring 3 and interior ring 4 are arranged on respectively in wheel hub 1 inner chamber;
The face contacting between interior ring 4 and seat ring 3 is designed to circular cone, and its effect is when rotation relatively, to seal the high pressure gas in air flue.
Between seat ring 3 and wheel hub 1, adopt O type circle 2 static sealings;
Interior ring 4 is arranged between seat ring 3 and spindle nose 6, adopts the 2nd O type circle 5 static sealings between interior ring 4 and spindle nose 6;
Oil sealing 7 is installed between seat ring 3 and interior ring 4, for sealing without pressure grease.
The material of interior ring 4 and seat ring 3 is copper alloy, between interior ring 4 and seat ring 3, fills a small amount of grease.
Interior ring 4 can be according to the pressure design of blanketing gas with the circular cone of seat ring 3, and the coning angle of circular cone is 30 °.
High pressure gas are from air flue 8, and interior ring 4 compresses seat ring 3 under gaseous tension simultaneously, plays sealing function.
The air flue 8 of spindle nose 6, the air flue 8 of interior ring 4, the air flue 8 of seat ring 3 and the air flue of wheel hub 18 are communicated with, and complete inflation/deflation operation;
Due to interior ring 4 with seat ring 3 each other for the conical surface contacts, between interior ring 4 and seat ring 3, can relatively rotate.
Above embodiment is only for illustrating that technical scheme of the present invention is not intended to limit; although the present invention is had been described in detail by embodiment; affiliated field personnel should modify or part technical characterictic is equal to replacement with reference to concrete mode of the present invention; but do not departing under the spirit of technical solution of the present invention above-mentioned change or be equal to replacement and should belong in the technical scheme scope that the present invention asks for protection.
Claims (6)
1. a Vehicular metal rotary sealing appts, comprise the 2nd O type circle between an O type circle, interior ring and the spindle nose between oil sealing, seat ring and the wheel hub between ring, two seat rings, spindle nose, seat ring and interior rings in wheel hub, in wheel hub inner chamber two, also comprise the air flue being connected between interior ring, seat ring, wheel hub, spindle nose, it is characterized in that, the face contacting between described interior ring and seat ring is the conical surface ringwise.
2. a kind of Vehicular metal rotary sealing appts as claimed in claim 1, is characterized in that, the coning angle of described circular cone is 10-60 °.
3. a kind of Vehicular metal rotary sealing appts as claimed in claim 1, is characterized in that, the coning angle of described circular cone is 30 °.
4. a kind of Vehicular metal rotary sealing appts as claimed in claim 1, is characterized in that, the coning angle of described circular cone is 45 °.
5. a kind of Vehicular metal rotary sealing appts as claimed in claim 1, is characterized in that, between described interior ring and seat ring, has grease.
6. a kind of Vehicular metal rotary sealing appts as claimed in claim 1, is characterized in that, described interior ring and the material of seat ring are copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511759.7U CN203438791U (en) | 2013-08-21 | 2013-08-21 | Vehicle rotary seal device adopting metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511759.7U CN203438791U (en) | 2013-08-21 | 2013-08-21 | Vehicle rotary seal device adopting metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203438791U true CN203438791U (en) | 2014-02-19 |
Family
ID=50089864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511759.7U Expired - Lifetime CN203438791U (en) | 2013-08-21 | 2013-08-21 | Vehicle rotary seal device adopting metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203438791U (en) |
-
2013
- 2013-08-21 CN CN201320511759.7U patent/CN203438791U/en not_active Expired - Lifetime
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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: 20140219 |