CN102218977A - Automobile tire central air inflation and deflation device for hub reduction gear assembly - Google Patents
Automobile tire central air inflation and deflation device for hub reduction gear assembly Download PDFInfo
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- CN102218977A CN102218977A CN201110059026XA CN201110059026A CN102218977A CN 102218977 A CN102218977 A CN 102218977A CN 201110059026X A CN201110059026X A CN 201110059026XA CN 201110059026 A CN201110059026 A CN 201110059026A CN 102218977 A CN102218977 A CN 102218977A
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Abstract
The invention provides an automobile tire central air inflation and deflation device for a hub reduction gear assembly, which consists of an air inflation electromagnetic air valve, an air deflation electromagnetic air valve, a control electromagnetic air valve, an air pressure sensor and a dual-channel rotary sealing air chamber which are arranged on an automobile chassis and an air control execution air valve arranged at the rotating position. By the automobile tire central air inflation and deflation device, the on-off of the air inflation electromagnetic air valve, the air deflation electromagnetic air valve and the air control execution air valve can be controlled directly by a cab electronic control unit to control the processes of air inflation and deflation of tires and the air pressure detection of the tires, and the pressure of the tires can be set and adjusted according to the ground condition during the running or stopping of automobiles.
Description
Technical field
The invention belongs to that motor tire central authorities fill, Bleed-Air Control System, particularly adopt the motor tire central authorities aerating and exhaust device of wheel reduction gear assembly.
Background technology
Existing part cross country car is equipped with tire central authorities aerating and exhaust device.Described central aerating and exhaust device is made up of compressed air gas source, control gas circuit, rotary seal air chamber, wheel limit valve and corresponding pipeline, is used to regulate the air pressure of tire, to satisfy the different needs of different road surfaces to vehicle tyre air pressure.But, when regulating vehicle tyre air pressure, after also needing to stop, manually turn-off and connect wheel limit valve, again in operator's compartment to tire fill, bleed air operation, can not realize the tire charging-discharging function in the running car.And the rotary seal air chamber is single pass radially rotary seal structure, if under steam, does not turn-off wheel limit valve, and in the high speed revolution process, seal ring is easy to wear, causes gas leakage, and the rotary seal air chamber was lost efficacy.
Summary of the invention
The object of the present invention is to provide the motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly.This apparatus structure is simple, can realize the tire charging-discharging function in the running car, its core is to have changed the structure of rotary seal air chamber and carried out air valve, the rotary seal air chamber is improved to binary channel by single channel, single channel is inflated gas circuit change a kind of controlled binary channel gas circuit into, and solved a turning unit and an on-rotatably moving part gas circuit bonded assembly gas leakage difficult problem.
Because the wheel reduction gear assembly has two kinds of structures, a kind of is satellite gear side reducer assembly, and another kind is a single-stage driving wheel reduction gear assembly, causes the position that is provided with of binary channel rotary seal air chamber to change, the present invention has following two kinds of technical schemes under an inventive concept:
First kind of technical scheme:
The motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly, form by inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve, baroceptor, rotary seal air chamber and execution air valve, inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve are installed on the car chassis, carrying out air valve is installed on the automotive hub, inflation electromagnetic gas valve, control electromagnetic gas valve are connected with automobile air storage vessel, it is characterized in that: described execution air valve is normally closed gas control commutation air valve, and described rotary seal air chamber is a binary channel rotary seal air chamber; The structure of described binary channel rotary seal air chamber is: be provided with an axial main airway and axially control air flue on the cooresponding end face of support central siphon of wheel hub and satellite gear side reducer assembly, the end face that supports central siphon is provided with two non-conterminous circumferential groove, two non-conterminous circumferential groove are corresponding with axial main airway and axial control air flue respectively, support central siphon and be provided with main airway and control air flue, on the end face between wheel hub and the support central siphon wear-resistant ceramic seal ring, wear-resistant ceramic seal ring are installed, play the rotary seal effect.
Second kind of technical scheme:
The motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly, form by inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve, baroceptor, rotary seal air chamber and execution air valve, inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve are installed on the car chassis, carrying out air valve is installed on the automobile rim, inflation electromagnetic gas valve, control electromagnetic gas valve are connected with automobile air storage vessel, it is characterized in that: described execution air valve is normally closed gas control commutation air valve, and described rotary seal air chamber is a binary channel rotary seal air chamber; Described binary channel rotary seal air chamber is arranged on the single-stage driving wheel reduction gear assembly, the structure of this single-stage driving wheel reduction gear assembly is: be arrangeding in parallel on housing is provided with input shaft, output shaft, be connected with driving gear by spline on the input shaft, be connected with ring gear, driving gear and ring gear engagement by spline on the output shaft; Input shaft is connected with the automobile driving box, and the butt flange of output shaft directly is connected with wheel, and the output shaft afterbody is provided with end cap; Binary channel rotation air chamber structure on it, be specially: on the end cap of wheel reduction gear and the cooresponding end face of output shaft, be provided with a main airway and control air flue, the end face of output shaft is provided with two non-conterminous circumferential groove, be provided with grommet type seals between two circumferential groove, two non-conterminous circumferential groove are corresponding with main airway and control air flue respectively, output shaft is provided with axial main airway and axially controls air flue, axially main airway and axial control air flue are communicated with respectively with two circumferential groove, the wear-resistant ceramic seal ring is installed on the end face between output shaft and the end cap, the wear-resistant ceramic seal ring plays the rotary seal effect.
Working process:
The inflation of tire process: tire of the present invention central authorities fill, bleeding device is when inflated condition, circuit gas-filled switching tube in the control operation system and wheel gas circuit master cock are opened, make control electromagnetic gas valve and inflation electromagnetic gas valve open, open the execution air valve by the control gas circuit, make and carry out on the air valve the main gas circuit of inflation and open, the pressurized air of air tank enters in the tire and puts on the air through inflation electromagnetic gas valve, rotary seal air chamber, inflation electromagnetic gas valve.At this moment; baroceptor changes into the electric signal that can demarcate with the pressure signal of major loop and passes to center console, is used for monitoring tyres pressure, when inflation of tire air pressure meets or exceeds this regulation numerical value; close the ventilating control valve, the protection tire damages because of air pressure is too high.
Process bleeds a tire: the central aerating and exhaust device of tire of the present invention is when deflated state, circuit air cock in the control operation system and wheel gas circuit master cock are opened, make control electromagnetic gas valve and venting electromagnetic gas valve switch on, pressurized air in the tire is discharged in the extraneous air through carrying out air valve, rotary seal air chamber and venting electromagnetic gas valve, thereby finishes the deflation course of tire.
The air pressure testing process of tire: the central aerating and exhaust device of tire of the present invention is closed circuit gas-filled switching tube and air cock in the control operation system when detecting tire air pressure state, and the inflation electromagnetic gas valve cuts off the power supply with the venting electromagnetic gas valve and closes; Simultaneously wheel gas circuit master cock is opened, the wheel gas path control valve energising that makes, then open and carry out the air valve gas circuit, cause main gas circuit to be opened, tire pressure is delivered to baroceptor from execution air valve, rotary seal air chamber, and this sensor signal is delivered to the compression indicator on the guidance panel and shows this force value.
The present invention has following principal feature:
(1), automatically controlled solenoid control is easily adopted in non-rotating zone.Owing to adopt electromagnetic gas valve, utilize the switching that is used for realizing valve of electromagnetic force, with the flow direction of control air pressure.Reflection sensitivity and time are short, can fill, exit each tire more accurately.
(2), rotary area adopts the relatively easy Pneumatic valve of realizing to control.Utilize the passability of air, push the execution air valve on the rotation position open, inflation or bleed passage are opened.Substantially solve the problem that other physical quantity bad space structure by automotive parts, the operation of wheel position touch sealing such as water, mud and insulation and the bad arrangement of rotary seal place easily, guaranteed the enforcement of whole strategy.
(3), with two rotary seal channels designs on a part, sealing means is the binary channel side seal.
(4), carry out air valve and be in the state of dying usually, tire and system are isolated, all do not influence the interior air pressure of tire when any fault takes place in system like this, make vehicle continue to travel, increased travel reliability and the safety that block automobile.In addition, and fill, put, in the process such as detection, carry out air valve and be in aeration status, all can carry out under steam, improved the manoevreability of vehicle.
(5), this system both can put on the air to all tire simultaneously, also can fill, exit each tire, also can fill, exit each tire or single bridge.Independently fill, exit damaging tire, can play interim emergent remedying, guarantee that vehicle can continue to travel.
Beneficial effect: the present invention has really realized the open and close control of rotation position air flue, and the central automatic guidance that can implement the automobile (cross-country car) of belt wheel side reducer assembly fills, the venting function.The present invention has realized that electromagnetism and compressing hole jointly control gas control and carry out valve, realizes not shut-down operation, to satisfy the different demands of different road surfaces to vehicle tyre air pressure.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 be on the satellite gear side reducer assembly binary channel rotary seal air chamber structural representation.
Fig. 3 is the portion of B shown in a Fig. 2 enlarged drawing.
Fig. 4 be on the another kind of wheel reduction gear assembly binary channel rotary seal air chamber structural representation.
Fig. 5 is a structural representation of carrying out air valve.
The specific embodiment
Motor tire central authorities aerating and exhaust device as shown in Figure 1, by inflation electromagnetic gas valve 10, venting electromagnetic gas valve 9, control electromagnetic gas valve 3, baroceptor 8, binary channel rotary seal air chamber A and execution air valve 6 are formed, inflation electromagnetic gas valve 10, venting electromagnetic gas valve 9, control electromagnetic gas valve 3 is installed on automotive wheels side reducer assembly or the axle assembly, carrying out air valve 6 is installed on wheel hub or the wheel rim, gas control three linked piece 2 is equipped with in automobile air storage vessel 1 outlet, venting electromagnetic gas valve 9, control electromagnetic gas valve 3 is connected with automobile air storage vessel 1, and inflation electromagnetic gas valve 10 is connected with automobile air storage vessel 1 by reducing valve 11; Described execution air valve 6 is normally closed gas control commutation air valves; The input end of the main airway 7 of binary channel rotary seal air chamber connects the mouth of inflation electromagnetic gas valve and the input end of venting electromagnetic gas valve, and the other end is connected the main gas circuit end of the normally closed gas control commutation air valve 6 on wheel hub or the wheel rim; The input end of normally closed Pneumatic reversal valve control air flue 4 is connected the mouth of control electromagnetic gas valve 3, and the control end of normally closed gas control commutation air valve 6 is connected with the other end of control air flue.
As Fig. 2, it shown in 3 the binary channel rotary seal air chamber structure on the satellite gear side reducer assembly, be specially: on wheel hub 11 and support central siphon 12 cooresponding end faces, be provided with an axial main airway 14 and axially control air flue 15, the end face that supports central siphon 12 is provided with two non-conterminous circumferential groove, two non-conterminous circumferential groove are corresponding with axial main airway 14 and axial control air flue 15 respectively, support central siphon 12 and be provided with main airway 13 and control air flue 16, on the end face between wheel hub 11 and the support central siphon 12 wear-resistant ceramic seal ring 17 is installed, wear-resistant ceramic seal ring 18 plays the rotary seal effect.
Be single-stage driving wheel reduction gear assembly as shown in Figure 4, on housing 19, be arranged in parallel and be provided with input shaft 20, output shaft 21, be connected with driving gear 30 by spline on the input shaft 20, be connected with ring gear 31, driving gear 30 and ring gear 31 engagements by spline on the output shaft 21; Input shaft 20 is connected with the automobile driving box, and the butt flange 29 of output shaft 21 directly is connected with wheel, and output shaft 21 afterbodys are provided with end cap 22.Binary channel rotation air chamber structure on it, be specially: on the end cap 22 of wheel reduction gear assembly and output shaft 21 cooresponding end faces, be provided with a main airway 25 and control air flue 24, the end face of output shaft 21 is provided with two non-conterminous circumferential groove, two non-conterminous circumferential groove are corresponding with main airway 25 and control air flue 24 respectively, output shaft 21 is provided with axial main airway 28 and axially controls air flue 23, axially main airway 28 and axial control air flue 23 are communicated with respectively with two circumferential groove, on the end face between output shaft 21 and the end cap 22 wear-resistant ceramic seal ring 26 is installed, wear-resistant ceramic seal ring 27 plays the rotary seal effect.
Be to carry out shown in air valve 6(Fig. 1 as shown in Figure 5) a kind of structure, it is normally closed gas control commutation air valve, valve 33 has been installed on valve body 32 has been communicated with, when carrying out valve, can use valve manually tire to be filled, exits outside without gas control with air extractor duct 34.
As following table one, be the on off mode of the control cock of motor tire central authorities aerating and exhaust device:
Table one:
| ? | The control electromagnetic gas valve | The inflation electromagnetic gas valve | The venting electromagnetic gas valve | Carry out air valve |
| Measure operating mode | Energising | Outage | Outage | Ventilation |
| The inflation operating mode | Outage | Energising | Outage | Ventilation |
| The venting operating mode | Energising | Outage | Energising | Ventilation |
Claims (4)
1. the motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly, form by inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve, baroceptor, rotary seal air chamber and execution air valve, inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve are installed on the car chassis, carrying out air valve is installed on the automotive hub, inflation electromagnetic gas valve, control electromagnetic gas valve are connected with automobile air storage vessel, it is characterized in that: described execution air valve is normally closed gas control commutation air valve, and described rotary seal air chamber is a binary channel rotary seal air chamber; The structure of binary channel rotary seal air chamber is: be provided with an axial main airway and axially control air flue on the cooresponding end face of support central siphon of wheel hub and satellite gear side reducer assembly, the end face that supports central siphon is provided with two non-conterminous circumferential groove, two non-conterminous circumferential groove are corresponding with axial main airway and axial control air flue respectively, support central siphon and be provided with main airway and control air flue, on the end face between wheel hub and the support central siphon two wear-resistant ceramic seal rings are installed, play the rotary seal effect.
2. the motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly according to claim 1 is characterized in that: described normally closed gas control commutation air valve is provided with valve and is communicated with the outlet of normally closed Pneumatic reversal valve.
3. the motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly, form by inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve, baroceptor, rotary seal air chamber and execution air valve, inflation electromagnetic gas valve, venting electromagnetic gas valve, control electromagnetic gas valve are installed on the car chassis, carrying out air valve is installed on the automobile rim, inflation electromagnetic gas valve, control electromagnetic gas valve are connected with automobile air storage vessel, it is characterized in that: described execution air valve is normally closed gas control commutation air valve, and described rotary seal air chamber is a binary channel rotary seal air chamber; Described binary channel rotary seal air chamber is arranged on the single-stage driving wheel reduction gear assembly, the structure of this single-stage driving wheel reduction gear assembly is: be arrangeding in parallel on housing is provided with input shaft, output shaft, be connected with driving gear by spline on the input shaft, be connected with ring gear, driving gear and ring gear engagement by spline on the output shaft; Input shaft is connected with the automobile driving box, and the butt flange of output shaft directly is connected with wheel, and the output shaft afterbody is provided with end cap; Binary channel rotary seal air chamber structure on it, be specially: on the end cap of wheel reduction gear and the cooresponding end face of output shaft, be provided with a main airway and control air flue, the end face of output shaft is provided with two non-conterminous circumferential groove, two non-conterminous circumferential groove are corresponding with main airway and control air flue respectively, output shaft is provided with axial main airway and axially controls air flue, axially main airway and axial control air flue are communicated with respectively with two circumferential groove, two wear-resistant ceramic seal rings are installed on the end face between output shaft and the end cap, play the rotary seal effect.
4. the motor tire central authorities aerating and exhaust device that is used for the wheel reduction gear assembly according to claim 3 is characterized in that: described normally closed gas control commutation air valve is provided with valve and is communicated with the outlet of normally closed Pneumatic reversal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110059026XA CN102218977A (en) | 2011-03-12 | 2011-03-12 | Automobile tire central air inflation and deflation device for hub reduction gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110059026XA CN102218977A (en) | 2011-03-12 | 2011-03-12 | Automobile tire central air inflation and deflation device for hub reduction gear assembly |
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| Publication Number | Publication Date |
|---|---|
| CN102218977A true CN102218977A (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110059026XA Pending CN102218977A (en) | 2011-03-12 | 2011-03-12 | Automobile tire central air inflation and deflation device for hub reduction gear assembly |
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| CN (1) | CN102218977A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434346A (en) * | 2013-08-16 | 2013-12-11 | 深圳君浩投资发展有限公司 | Tire valve cap and tire condition monitoring device and system |
| CN107128133A (en) * | 2017-05-25 | 2017-09-05 | 武汉元丰汽车技术发展有限公司 | Double-channel rotatable sealing device assembly |
| CN108705904A (en) * | 2018-06-11 | 2018-10-26 | 苏州巴吉赛车科技有限公司 | A kind of wheel hem retarding mechanism with aerification function |
| 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 |
| CN110217056A (en) * | 2019-05-31 | 2019-09-10 | 吉林大学 | A kind of Electric Motor Wheel tire automatic inflatable device of air and its control method |
| CN112572374A (en) * | 2019-09-30 | 2021-03-30 | 北京中资燕京汽车有限公司 | Hub reduction gear assembly and wheel assembly |
-
2011
- 2011-03-12 CN CN201110059026XA patent/CN102218977A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434346A (en) * | 2013-08-16 | 2013-12-11 | 深圳君浩投资发展有限公司 | Tire valve cap and tire condition monitoring device and system |
| CN107128133A (en) * | 2017-05-25 | 2017-09-05 | 武汉元丰汽车技术发展有限公司 | Double-channel rotatable sealing device assembly |
| CN108705904A (en) * | 2018-06-11 | 2018-10-26 | 苏州巴吉赛车科技有限公司 | A kind of wheel hem retarding mechanism with aerification function |
| CN108705904B (en) * | 2018-06-11 | 2023-12-08 | 太仓威强精工机械有限公司 | Wheel side speed reducing mechanism with inflation function |
| 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 |
| CN110217056A (en) * | 2019-05-31 | 2019-09-10 | 吉林大学 | A kind of Electric Motor Wheel tire 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 |
| CN112572374A (en) * | 2019-09-30 | 2021-03-30 | 北京中资燕京汽车有限公司 | Hub reduction gear assembly and wheel assembly |
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Application publication date: 20111019 |