CN101863199B - Air path of central air charging and discharging system for automobile - Google Patents
Air path of central air charging and discharging system for automobile Download PDFInfo
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- CN101863199B CN101863199B CN 201010221890 CN201010221890A CN101863199B CN 101863199 B CN101863199 B CN 101863199B CN 201010221890 CN201010221890 CN 201010221890 CN 201010221890 A CN201010221890 A CN 201010221890A CN 101863199 B CN101863199 B CN 101863199B
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- air flue
- stationary part
- hub spindle
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Abstract
The invention provides an air path of a central air charging and discharging system for an automobile. The air path comprises a wheel reducer shell (2), wherein a wheel hub shaft (7) is arranged in the wheel reducer shell (2); the lateral end face of the wheel hub shaft (7) is provided with an end cover (1); a cavity is formed and an a seal ring (9) is arranged between the end cover (1) and the wheel hub shaft (7); and another seal ring (10) is arranged between the wheel hub shaft (7) and the wheel reducer shell (2). The air path comprises two air ducts, wherein the air duct I comprises a stationary part (4) arranged on the end cover (1) and a rotary part (3) arranged on the wheel hub shaft (7); the air duct II comprises the stationary part (5) arranged on the wheel reducer shell (2) and the rotary part (6) arranged on the wheel hub shaft (7); and both the stationary part (5) and the rotary part (6) of the air duct II are communicated with the cavity (8). The air path has a simple structure, can greatly reduce the design difficulty of other components of the central air charging and discharging system of a tyre and improve the reliability of the entire system.
Description
Technical field
The present invention relates to a kind of vehicle gas circuit, specifically relate to the gas circuit that a kind of cross-country car is used Center Tyre Inflation/Deflation System.
Background technology
The road surface more complicated that cross country car travels usually need to be travelled at muddy and soft surface.According to the vehicle ground theory of mechanics, in the situation that ground friction coefficient and other conditions are certain, tire-contact area is larger, and the ground traction that vehicle obtains is also just larger.Therefore, by the adjusting knurl air pressure, change tire-contact area, just can play the effect that changes the vehicle tractive force.So the performance of passing through of vehicle has in various degree enhancing with the difference of tyre pressure lowing degree.
How to realize vehicle in the process of moving to the tire inflation/deflation, gas circuit is a great problem that central inflation/deflation technology faces from the wheel that motionless vehicle body is communicated to rotation.What extensively adopt at present is the single-pipeline pattern, realize to tyre inflating, venting and pressure measurement, or at wheel the manual switch valve is installed, or the special tyre valve of mounting structure complexity.Adopt the manual switch valve mode, when needs regulating wheel tire pressure, need operating personal to get off first and open switch valve, also need the closing switch valve after inflation/deflation is finished, operate more loaded down with trivial details; Adopt the tyre valve mode, can realize the regulating wheel tire pressure of not getting off, but the tyre valve complex structure.
Summary of the invention
The purpose of this invention is to provide a kind of gas circuit that can realize simultaneously to the central air-charging and air-discharging system of tyre inflating, venting and pressure measurement.
Its bag of the gas circuit of central vehicle air-charging and air-discharging system provided by the invention: draw together the wheel reduction gear housing, hub spindle and bearing are installed in the wheel reduction gear housing, side end face at reducer shell is provided with end cap, form cavity between one end of end cap and hub spindle, be provided with seal ring between one end of end cap and hub spindle, be provided with air flue I stationary part at described end cap, hub spindle is provided with air flue I rotating part, and air flue I rotating part and air flue I stationary part are communicated with seal ring respectively; Be provided with air flue II stationary part at the wheel reduction gear housing, be provided with air flue II rotating part at hub spindle, air flue II stationary part and air flue II air extractor duct all are communicated with the reducer shell internal cavity.
The objective of the invention is that gas circuit by a kind of central air-charging and air-discharging system realizes, this gas circuit comprises wheel reduction gear housing (2), hub spindle (7) is installed in the wheel reduction gear housing (2), be provided with end cap (1) in the side end face of hub spindle (7), form cavity between end cap (1) and the hub spindle (7) and be provided with seal ring (9), between hub spindle (7) and wheel reduction gear housing (2) seal ring (10) is set: its improvements are: said gas circuit comprises two air flues; Said air flue I comprises the stationary part (4) of being located on the said end cap (1) and is located at rotating part (3) on the hub spindle (7); Said air flue II comprises the stationary part (5) of being located on the wheel reduction gear housing (2) and is located at rotating part (6) on the hub spindle (7); Air flue II stationary part (5) and air flue II rotating part (6) all are communicated with cavity (8).
The invention provides in the preferred gas circuit of air-charging and air-discharging system, the stationary part of said air flue I (4) is in parallel with Live switch electromagnetic valve (12) and normally closed switch electromagnetic valve (13); Rotating part (3) is connected with normally closed switch valve (11).
In the preferred gas circuit of an again air-charging and air-discharging system provided by the invention, the stationary part of said air flue II (5) is connected with two-bit triplet electromagnetic valve (15), and its rotating part (6) is connected with normally closed switch valve (11).
In the preferred gas circuit of the 3rd air-charging and air-discharging system provided by the invention, the stationary part of said air flue I (4) is in parallel with Live switch electromagnetic valve (12) and normally closed switch electromagnetic valve (13); Rotating part (3) is connected with normally closed switch valve (11); The stationary part of said air flue II (5) is connected with two-bit triplet electromagnetic valve (15).
In the most preferably described gas circuit provided by the invention, be communicated with seal ring (9) respectively at the air flue I rotating part (3) on the described hub spindle (7) and the air flue I stationary part (4) on the end cap (1).
Advantage of the present invention is, the wheel limit two gas circuit structures of assembly are simple, but the design difficulty of other parts of decrease Center Tyre Inflation/Deflation System improves the reliability of whole system.
Description of drawings
Fig. 1 is the gas circuit structure schematic diagram of a kind of central air-charging and air-discharging system provided by the present invention;
Fig. 2 is wheel limit gas circuit packing state figure;
Fig. 3 is wheel limit gas circuit inflated condition figure;
Fig. 4 is wheel limit gas circuit deflated state figure;
Fig. 5 is wheel limit gas circuit pressure measurement constitution diagram.
Among the figure, 1 end cap, 2 wheel reduction gear housings, 3 air flue I rotating parts, 4 air flue I stationary parts, 5 air flue II stationary parts, 6 air flue II rotating parts, 7 hub spindles, 8 cavitys, 9 seal ring I, 10 seal ring II, 11 gas control normally closed switch valves, 12 Live switch electromagnetic valves, 13 normally closed switch electromagnetic valves, 14 sources of the gas, 15 two-bit triplet electromagnetic valves, 16 pressure sensors, 17 tires.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail:
As shown in Figure 1, a kind of gas circuit structure of Center Tyre Inflation/Deflation System, it comprises a kind of gas circuit structure of Center Tyre Inflation/Deflation System, it comprises wheel reduction gear housing 2, hub spindle 7 is installed in the wheel reduction gear housing 2, is provided with end cap 1 at an end of hub spindle 7, at end cap 1 air flue I stationary part 4 is set, be provided with air flue I rotating part 3 at hub spindle 7, seal ring I 9 places between end cap 1 and the hub spindle 7; At wheel reduction gear housing 2 air flue II stationary part 5 is set, leads to cavity 8, at hub spindle air flue II rotating part is set, lead to cavity 8, seal ring II 10 places between wheel reduction gear housing 2 and the hub spindle 7.Wheel reduction gear housing 2 is interior can speed reduction gearing and lubricated wet goods.
In the assembly of wheel limit, realize two air flues from static to motion.Article one, from static air flue to moving: air flue enters from static end cap 1, be air flue I stationary part 4, between end cap 1 and hub spindle 7, seal ring I be installed, airtight cavity realizes that air flue I stationary part 4 is communicated with air flue I rotating part 3, realizes that air flue I is from static to rotation.The air flue of second from static to motion: air flue enters from wheel reduction gear housing 2, it is air flue II stationary part 5, it directly leads to cavity 8, cavity 8 has wheel reduction gear housing 2, hub spindle 7, end cap 1, seal ring I, seal ring II to form, set up air flue II air extractor duct 6 at hub spindle 7, relative rotation between the hub spindle 7 at air flue II air extractor duct 6 and its place and the wheel reduction gear housing 1, air flue II stationary part 5, cavity 8 and the air flue II air extractor duct 6 common air flues of seconds from static to motion that form.Two seal rings 9 and 10 will have certain air seal function.
The effect of Center Tyre Inflation/Deflation System be exactly vehicle advance or stopped process in the regulating wheel tire pressure, realize tyre inflating, venting and pressure measurement operation are wanted when not working in system to realize tyre pressure-keeping.Fig. 2 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation/Deflation System realizes the tyre pressure-keeping state.12,13,15 3 electromagnetic valves all are in initial condition (not powering state) among the figure, and gas control normally closed switch valve 11 is in normally off, tyre pressure-keeping.
Fig. 3 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation/Deflation System realizes the tyre inflating state.15 energisings of two-bit triplet electromagnetic valve, high pressure gas lead to air flue II stationary part 5 from source of the gas 14, lead to air flue II air extractor duct 6 again, and high pressure gas promote gas control normally closed switch valve 11, make it turn to conducting state from normally off.Simultaneously Live switch electromagnetic valve 12 energisings, this electromagnetic valve changes as shown in Figure 3 closed condition into from normal open state.Simultaneously normally closed switch electromagnetic valve 13 energisings, this electromagnetic valve changes as shown in Figure 3 conducting state into from normally off.High pressure gas lead to air flue I stationary part 4 from source of the gas 14, lead to air flue I rotating part 3 again, then lead to tire through control normally closed switch valve 11.Realization is to tyre inflating.
Fig. 4 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation/Deflation System realizes the state that bleeds a tire.15 energisings of two-bit triplet electromagnetic valve, high pressure gas lead to air flue II stationary part 5 from source of the gas 14, lead to air flue II air extractor duct 6 again, and high pressure gas promote gas control normally closed switch valve 11, make it turn to conducting state from normally off.Gas in the tire leads to air flue I rotating part 3 through gas control normally closed switch valve 11, leads to air flue I stationary part 4 again, discharges through normally closed switch electromagnetic valve 13.Live switch electromagnetic valve 12 and normally closed switch electromagnetic valve 13 equal no power, in a state of nature positions.Thereby realize deflating a tire.
Fig. 5 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation/Deflation System realizes the tire pressure measurement state.15 energisings of two-bit triplet electromagnetic valve, high pressure gas lead to air flue II stationary part 5 from source of the gas 14, lead to air flue II air extractor duct 6 again, and high pressure gas promote gas control normally closed switch valve 11, make it turn to conducting state from normally off.Gas in the tire leads to air flue I rotating part 3 through gas control normally closed switch valve 11, leads to air flue I stationary part 4 again, and with pressure sensor 16 conductings, simultaneously Live switch electromagnetic valve 12 energisings are converted to closed condition from normal open state, blanketing gas.Normally closed switch electromagnetic valve 13 no powers, in a state of nature position confining gas.Realize measure tire pressure.
The inflation of Center Tyre Inflation/Deflation System, venting, pressure measurement and four kinds of operating modes of pressurize can realize by controlling three electromagnetic valves conversion and the maintenance of any operating mode.
The wheel limit two gas circuit structures of assembly are simple, but the design difficulty of other parts of decrease Center Tyre Inflation/Deflation System, the reliability of raising whole system.
Technical personnel is read patent description postscript of the present invention, of the present invention express or hint under, technical personnel can carry out all changes or modification, but these changes or modification are all within the claim protection domain that application is awaited the reply.
Claims (1)
1. central vehicle air-charging and air-discharging system gas circuit, this gas circuit comprises wheel reduction gear housing (2); Hub spindle (7) is installed in the described wheel reduction gear housing, the side end face of said hub spindle (7) is provided with end cap (1), form cavity (8) between said end cap (1) and the said hub spindle (7) and be provided with seal ring (9), between hub spindle (7) and wheel reduction gear housing (2) seal ring (10) is set: it is characterized in that: said gas circuit comprises two air flues; Said air flue I comprises the stationary part (4) of being located on the said end cap (1) and is located at rotating part (3) on the hub spindle (7); The stationary part of said air flue I (4) is connected with Live switch electromagnetic valve (12) and normally closed switch electromagnetic valve (13) respectively, and normally closed switch electromagnetic valve (13) is connected with source of the gas; Rotating part (3) is connected with gas control normally closed switch valve (11), and described gas control normally closed switch valve (11) is connected with tire; Said air flue II comprises the stationary part (5) of being located on the wheel reduction gear housing (2) and is located at rotating part (6) on the hub spindle (7); Air flue II stationary part (5) and air flue II rotating part (6) all are communicated with cavity (8), the stationary part of said air flue II (5) is connected with source of the gas by two-bit triplet electromagnetic valve (15), and its rotating part (6) is connected with the control gas circuit port of described gas control normally closed switch valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010221890 CN101863199B (en) | 2010-07-09 | 2010-07-09 | Air path of central air charging and discharging system for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010221890 CN101863199B (en) | 2010-07-09 | 2010-07-09 | Air path of central air charging and discharging system for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101863199A CN101863199A (en) | 2010-10-20 |
| CN101863199B true CN101863199B (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010221890 Expired - Fee Related CN101863199B (en) | 2010-07-09 | 2010-07-09 | Air path of central air charging and discharging system for automobile |
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| CN (1) | CN101863199B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011104760A1 (en) | 2011-06-18 | 2012-12-20 | Wabco Gmbh | Pressure control device for a tire inflation system with rotary feedthrough, rotary feedthrough, tire inflation system, motor vehicle with tire inflation system and tire pressure change method |
| CN106715162B (en) | 2014-10-01 | 2019-04-09 | 宝马股份公司 | For the component to wheel of vehicle supply compressed air |
| DE102014219981A1 (en) * | 2014-10-01 | 2016-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement for supplying compressed air to a wheel of a vehicle |
| CN106183657B (en) * | 2016-07-20 | 2018-06-22 | 东风汽车公司 | A kind of device realized air-flow and transmitted between revolving part and non-rotating part |
| CN110154653B (en) * | 2019-05-31 | 2024-02-06 | 吉林大学 | Automatic inflation and deflation device for vehicle tires and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407126A1 (en) * | 1989-07-03 | 1991-01-09 | Eaton Corporation | In-tire filter for central inflation system |
| CN1394765A (en) * | 2002-08-06 | 2003-02-05 | 中国重型汽车集团有限公司 | Central air-charging and air-discharging system of tyre of heavy cross-country vehicle |
| CN2858342Y (en) * | 2005-11-17 | 2007-01-17 | 国营险峰机器厂 | Air-charging and air-discharging system of tyre |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007131151A (en) * | 2005-11-10 | 2007-05-31 | Nsk Ltd | Bearing unit for driving wheel with air pressure control mechanism |
| JP4997864B2 (en) * | 2006-06-28 | 2012-08-08 | 日本精工株式会社 | Rolling bearing unit for wheel support with air compressor |
-
2010
- 2010-07-09 CN CN 201010221890 patent/CN101863199B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0407126A1 (en) * | 1989-07-03 | 1991-01-09 | Eaton Corporation | In-tire filter for central inflation system |
| CN1394765A (en) * | 2002-08-06 | 2003-02-05 | 中国重型汽车集团有限公司 | Central air-charging and air-discharging system of tyre of heavy cross-country vehicle |
| CN2858342Y (en) * | 2005-11-17 | 2007-01-17 | 国营险峰机器厂 | Air-charging and air-discharging system of tyre |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-131151A 2007.05.31 |
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| Publication number | Publication date |
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| CN101863199A (en) | 2010-10-20 |
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