CN101863199A - 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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- CN101863199A CN101863199A CN 201010221890 CN201010221890A CN101863199A CN 101863199 A CN101863199 A CN 101863199A CN 201010221890 CN201010221890 CN 201010221890 CN 201010221890 A CN201010221890 A CN 201010221890A CN 101863199 A CN101863199 A CN 101863199A
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- air flue
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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 of a kind of cross-country car with Center Tyre Inflation.
Background technology
The road surface more complicated that cross country car travels usually need be travelled on muddy and soft surface.According to the vehicle ground theory of mechanics, under the certain situation of ground friction coefficient and other conditions, tire-contact area is big more, and the ground traction that vehicle obtains is also just big more.Therefore,, change tire-contact area, just can play the effect that changes vehicle towed power by the adjusting knurl air pressure.So the difference that the through performance of vehicle reduces degree with tire pressure has enhancing in various degree.
How to realize that vehicle charges and discharge gas to tire in the process of moving, gas circuit is that central authorities charge and discharge a great problem that the gas technology faces from the wheel that motionless vehicle body is communicated to rotation.What extensively adopt at present is single tube road pattern, realize to inflation of tire, venting and pressure measurement, or on wheel, the manual switch valve is installed, or the special tyre valve of mounting structure complexity.Adopt hand switch valve mode, when needs are adjusted tire pressure, need operating personal to get off earlier and open switch valve, charging and discharging also needs the off switch valve after gas is finished, and operates more loaded down with trivial details; Adopt the tyre valve mode, can realize the adjustment 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 inflation of tire, venting and pressure measurement.
Its bag of the gas circuit of automobile central 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 on 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 on the wheel reduction gear housing, be provided with air flue II rotating part on 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 of being located on the said end cap (1) (4) and is located at rotating part (3) on the hub spindle (7); Said air flue II comprises the stationary part of being located on the wheel reduction gear housing (2) (5) 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 air-charging and air-discharging system more 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 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 that the wheel limit two gas circuit structures of assembly are simple, can reduce the design difficulty of other parts of Center Tyre Inflation significantly, improve the reliability of total system.
Description of drawings
Fig. 1 is the gas circuit structure scheme drawing 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, it comprises a kind of gas circuit structure of Center Tyre Inflation, 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, air flue I stationary part 4 is set on end cap 1 at an end of hub spindle 7, be provided with air flue I rotating part 3 on hub spindle 7, seal ring I 9 places between end cap 1 and the hub spindle 7; Air flue II stationary part 5 is set on wheel reduction gear housing 2, leads to cavity 8, air flue II rotating part is set on hub spindle, lead to cavity 8, seal ring II 10 places between wheel reduction gear housing 2 and the hub spindle 7.In the wheel reduction gear housing 2 speed reduction gearing and lubricated wet goods can be arranged.
In the assembly of wheel limit, realize two air flues from static to motion.Article one from static to the motion air flue: 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, the fully enclosed cavity realizes that air flue I stationary part 4 is communicated with air flue I rotating part 3, realization air flue I 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, on hub spindle 7, set up air flue II air extractor duct 6, 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 that form from static to motion.Two seal rings 9 and 10 will have certain air seal function.
The effect of Center Tyre Inflation be exactly vehicle advance or stopped process in adjust tire pressure, realize inflation of tire, venting and pressure measurement operation are wanted when not working in system to realize the tire pressurize.Fig. 2 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation realizes the tire packing 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, the tire pressurize.
Fig. 3 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation realizes the inflation of tire 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.Live switch electromagnetic valve 12 energisings simultaneously, this electromagnetic valve changes as shown in Figure 3 closed condition into from normal open state.Normally closed switch electromagnetic valve 13 energisings simultaneously, 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, lead to tire through control normally closed switch valve 11 then.Realize giving inflation of tire.
Fig. 4 is that double air passage wheel limit assembly structure incorporates the schematic diagram of gas circuit that Center Tyre Inflation 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, and often electromagnetic valve 13 discharges are closed in make and break.Live switch electromagnetic valve 12 and normally closed switch electromagnetic valve 13 equal no power, positions in a state of nature.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 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, Live switch electromagnetic valve 12 energisings simultaneously are converted to closed condition from normal open state, blanketing gas.Normally closed switch electromagnetic valve 13 no powers, position confining gas in a state of nature.Realize measure tire pressure.
The inflation of Center Tyre Inflation, venting, pressure measurement and four kinds of operating modes of pressurize can realize the conversion and the maintenance of any operating mode by controlling three electromagnetic valves.
The wheel limit two gas circuit structures of assembly are simple, can reduce the design difficulty of other parts of Center Tyre Inflation significantly, improve the reliability of total 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 (5)
1. automobile central air-charging and air-discharging system gas circuit, this gas circuit comprises wheel reduction gear housing (2), wheel reduction gear comprises housing (2) and hub spindle (7), the side end face of said hub spindle (7) is provided with end cap (1), form cavity 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 of being located on the said end cap (1) (4) and is located at rotating part (3) on the hub spindle (7); Said air flue II comprises the stationary part of being located on the wheel reduction gear housing (2) (5) 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).
2. according to the air-charging and air-discharging system gas circuit of claim 1, it is characterized in that the stationary part (4) of said air flue I 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).
3. according to the air-charging and air-discharging system gas circuit of claim 1, it is characterized in that: 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).
4. according to the air-charging and air-discharging system gas circuit of claim 1, it is characterized in that the stationary part (4) of said air flue I 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).
5. according to the described gas circuit of above-mentioned each claim 1, it is characterized in that: be communicated with seal ring (9) respectively at 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).
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 true CN101863199A (en) | 2010-10-20 |
| CN101863199B 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) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103608196A (en) * | 2011-06-18 | 2014-02-26 | 威伯科有限公司 | Pressure control device for a tire inflating system with a rotary feedthrough, and tire pressure changing method |
| DE102014219981A1 (en) * | 2014-10-01 | 2016-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement for supplying compressed air to a wheel of a vehicle |
| CN106183657A (en) * | 2016-07-20 | 2016-12-07 | 东风汽车公司 | A kind of realize the device that air-flow transmits between revolving part and non-rotating part |
| CN110154653A (en) * | 2019-05-31 | 2019-08-23 | 吉林大学 | A kind of vehicle tyre automatic inflatable device of air and its control method |
| US10434825B2 (en) | 2014-10-01 | 2019-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Assembly and method for the compressed air supply of a wheel of a vehicle |
Citations (5)
| 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 |
| JP2007131151A (en) * | 2005-11-10 | 2007-05-31 | Nsk Ltd | Bearing unit for driving wheel with air pressure control mechanism |
| US20080006357A1 (en) * | 2006-06-28 | 2008-01-10 | Tatsuo Wakabayashi | Rolling bearing unit for supporting a wheel with an air compressor |
-
2010
- 2010-07-09 CN CN 201010221890 patent/CN101863199B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| JP2007131151A (en) * | 2005-11-10 | 2007-05-31 | Nsk Ltd | Bearing unit for driving wheel with air pressure control mechanism |
| CN2858342Y (en) * | 2005-11-17 | 2007-01-17 | 国营险峰机器厂 | Air-charging and air-discharging system of tyre |
| US20080006357A1 (en) * | 2006-06-28 | 2008-01-10 | Tatsuo Wakabayashi | Rolling bearing unit for supporting a wheel with an air compressor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103608196A (en) * | 2011-06-18 | 2014-02-26 | 威伯科有限公司 | Pressure control device for a tire inflating system with a rotary feedthrough, and tire pressure changing method |
| CN103608196B (en) * | 2011-06-18 | 2016-08-17 | 威伯科有限公司 | Method is changed for having the pressure control device rotating the tire inflation unit performing device and tire pressure |
| US9555672B2 (en) | 2011-06-18 | 2017-01-31 | Wabco Gmbh | Pressure control device for a tire inflating system with a rotary feedthrough, and tire pressure changing method |
| DE102014219981A1 (en) * | 2014-10-01 | 2016-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Arrangement for supplying compressed air to a wheel of a vehicle |
| US10434825B2 (en) | 2014-10-01 | 2019-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Assembly and method for the compressed air supply of a wheel of a vehicle |
| CN106183657A (en) * | 2016-07-20 | 2016-12-07 | 东风汽车公司 | A kind of realize the device that air-flow transmits between revolving part and non-rotating part |
| 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 |
| CN110154653A (en) * | 2019-05-31 | 2019-08-23 | 吉林大学 | A kind of vehicle tyre automatic inflatable device of air and its control method |
| CN110154653B (en) * | 2019-05-31 | 2024-02-06 | 吉林大学 | Automatic inflation and deflation device for vehicle tires and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101863199B (en) | 2013-01-02 |
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Granted publication date: 20130102 Termination date: 20200709 |