CN203472435U - Tire air pressure control system and machine with pneumatic tire - Google Patents
Tire air pressure control system and machine with pneumatic tire Download PDFInfo
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- CN203472435U CN203472435U CN201320546478.5U CN201320546478U CN203472435U CN 203472435 U CN203472435 U CN 203472435U CN 201320546478 U CN201320546478 U CN 201320546478U CN 203472435 U CN203472435 U CN 203472435U
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- tire
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- pressure
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Abstract
The utility model discloses a tire air pressure control system. The tire air pressure control system comprises a pressure gas source capable of outputting pressure gas and an air pressure adjusting valve assembly. The pressure gas source comprises a check valve and the pressure gas source for preventing pressure gas output from the pressure gas source from flowing back. The air pressure regulating valve assembly comprises a first check valve and a second check valve, wherein the first check valve is provided with a first check valve inlet and a first check valve outlet; the second check valve is provided with a second check valve inlet and a second check valve outlet. The second check valve inlet is in gas communication with the first check valve outlet, and in gas communication with the pressure gas source. The second check valve outlet is in gas-fluid communication with the first check valve inlet, and can be in gas communication with a tire. The tire air pressure control system disclosed by the utility model can automatically keep air pressure in the tire stable, and can avoid fatigue, even crack of the tire caused by up-down changes of air pressure in the tire.
Description
Technical field
The utility model relates to tire pressure control system and has airtyred machine.
Background technology
Air-inflation tyre is used widely in comprising the power actuated vehicles such as construction machinery and equipment, as a part for traveling gear, is supporting power actuated vehicle and is moving in various landform.
For example, in the middle of construction machinery and equipment, what adopt greatly is the form that tire drives.Air pressure has great impact for performance and the safety control of tire.Tire pressure is too high or too low, can cause part tyre surface there is no ground connection, thereby reduce the earth-grasping force of tire, has affected the safety performance of driving, shortens the service life of tire simultaneously.In addition, excessively the tire of inflation can make its carcass overtighten, tyre carcase fatigue, and tyre carcase easily breaks and cuts damage; Underinflation tire meeting excessive deformation and overheated, finally can cause tyre carcase to break.Air pressure also may have influence on the control of vehicle, for example, occurs understeer or the degree excessively turning to.
Therefore to the control of tire pressure, be a very important problem.In traditional tire pressure control technology, typically use hand switch and trigger tyre inflating, and manually exit by air valve.
Yet allow not only operating difficulties of work machine operator periodic inspection tire pressure, be difficult to solve a problem promptly, simultaneously the serious work capacity that increases.Particularly, on some rugged road surfaces, in tire, can experience compress and restore.When tire compresses, can produce high pressure, and this high pressure cannot be by manually adjusting.
Utility model content
For at least one in addressing the above problem, the utility model provides a kind of tire pressure control system, and it comprises pressure gas source and air pressure valve assembly that can delivery pressure gas.Described pressure gas source comprises check valve, prevents from flowing back to described pressure gas source from the pressed gas of described pressure gas source output.Described air pressure adjustment valve module comprises having spring-loaded first check valve of the first check valve entrance and the outlet of the first check valve and have the second check valve entrance and the second check valve of the second check valve outlet.Described the second check valve entrance is communicated with described the first check valve exit gas, and is communicated with described pressure gas source gas; Described the second check valve outlet is communicated with described the first check valve inlet gas fluid, and can be communicated with tire gas.Described tire pressure control system can also comprise the blow off valve being communicated with described the first check valve outlet and described the second check valve inlet gas, sensor and the controller that can detect the signal of tire pressure output expression tire pressure.Described controller is connected with described pressure gas source, described blow off valve and described sensor electrical, receives the signal from the expression tire pressure of described sensor, and to described pressure gas source and described blow off valve, exports the signal of indication opening and closing respectively.
The utility model also provides a kind of airtyred machine that has, comprising above-mentioned tire pressure control system.
Utilize tire pressure control system of the present utility model, especially, in tire experience compression and the occasion of restoring, can automatically keep the stable gas pressure in tire, avoid tire due to wherein atmospherically lower variation cause fatigue, even break.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of tire pressure control system of the present utility model.
Fig. 2 is the Principle of Electrical System figure according to tire pressure control system of the present utility model.
The specific embodiment
In example below, although be to take tire roller as example, explain principle of the present utility model, art technology should be understood that tire roller is only an example with airtyred machine.There is airtyred machine and include but not limited to that various use air-inflation tyres are as the urban motor vehicle of traveling gear, cross-country self-propelled vehicle and various construction machinery and equipments etc.Tire pressure control system of the present utility model can be applied to the airtyred occasion of various uses.
Fig. 1 shows according to the schematic diagram of a kind of embodiment of tire gas control system of the present utility model.Graphic tire pressure control system comprises pressure gas source 2 and air pressure valve assembly 8 that can delivery pressure gas.Pressure gas source 2 is communicated with pressure valve assembly 8 gases by pipeline 3.Pressure gas source 2 can be for example compressor motor or pressure gas tank.In the utility model, " gas connection " refers to that gas can be from a part mobile to another parts, both can nonreturn flow, and also can two-way flow.
Air pressure adjustment valve module 8 comprises having the first check valve 9 of the first check valve entrance 10 and the first check valve outlet 11 and have the second check valve entrance 13 and the second check valve 12 of the second check valve outlet 14.The second check valve entrance 13 exports 11 gases with the first check valve and is communicated with, and is communicated with pressure gas source 2 gases.The second check valve entrance 13, the first check valve outlet 11, pressure gas source 2 can for example arrange triple valve by mode well known in the art on pipeline 3, carry out gas connection.
The second check valve outlet 14 is communicated with the first check valve entrance 10 gases, and can be communicated with tire 1 gas.Similarly, second check valve outlet the 14 and first check valve entrance 10 can be connected on two ports of a triple valve, and the 3rd port of this triple valve is communicated with the gas of tire 1 by known mode.
According to a kind of embodiment of the present utility model, pressure gas source comprises check valve (not shown), prevents from flowing back into pressure gas source from the pressed gas of pressure gas source 2 outputs.So in making the pipeline 3 of the second check valve entrance 13, the first check valve outlet 11 and the mutual gas connection of pressure gas source 2, pressed gas abrim, has formed the back pressure of air pressure adjustment valve module 8.
In the embodiment shown in Fig. 1, the first check valve 9 is spring-loaded check valves, comprises the first boiler check valve 21 and the first spring 22.The first spring 22 is arranged on the outlet side of the first boiler check valve 21, and the first boiler check valve 21 is loaded, and forms the response pressure of the first check valve.The second check valve 12 can only comprise the second boiler check valve 23, is not spring-loaded.In other embodiment (not shown), the second check valve can be also spring-loaded check valve, comprises the second boiler check valve and the second spring.The second spring is arranged on the outlet side of the second boiler check valve, and the second boiler check valve is loaded, and forms the response pressure of the second check valve.
As preferred implementation, as shown in Figure 1, according to tire pressure control system of the present utility model, can also comprise blow off valve 4.Blow off valve 4 can comprise valve 19 or the electromagnetic valve 5 the following describes, flow regulating valve 6, the silencer 7 being communicated with the second check valve entrance 13 gases of first check valve outlet the 11 and second check valve 12 of the first check valve 9 or comprise valve 19 and electromagnetic valve 5 etc. simultaneously.Blow off valve 4 can be any type of valve that is suitable for exhaust well known in the art.
Tire gas control system may further include the controller being electrically connected to pressure gas source and blow off valve.This tire gas control system can also comprise the sensor of the signal that can detect tire pressure output expression tire pressure, controller is connected with pressure gas source, blow off valve and sensor electrical, reception is from the signal of the expression tire pressure of sensor, and respectively to the signal of pressure gas source and blow off valve output indication opening and closing.
In illustrated embodiment, pressure gas source 2 can be for example compressor motor, and it can drive by the driving engine of roller, or drives by propulsions source such as special-purpose electrical motor or combustion engines.
Signal from the expression gaseous tension of sensor 15 is transmitted to controller 20, and controller 20, by the air pressure detecting and setup pressure value are contrasted, determine that tire 1 needs venting or inflation, or neither venting is not also inflated but kept.It will be understood by those skilled in the art that above-mentioned and setup pressure value contrasts, and is also included within the situation of inquiring about in setup pressure value table.
Controller 20 can be the engine control module (ECM) on roller, can be also independent such as microprocessor, industrial computer or computing machine etc.ECM20 is electrically connected to compressor motor 2, blow off valve 4 and sensor 15, according to the signal of the expression tire pressure from sensor 15 receiving, exports the signal of indication opening and closing respectively to compressor motor 2 and blow off valve 4.In the utility model, " electrical connection " comprises the electrical connection by wired mode, also comprises the electrical connection of wireless mode.
Blow off valve 4 can comprise the electromagnetic valve 5 being electrically connected to controller 20.Electromagnetic valve 5, can opening and closing under the control of controller 20, thereby according to predefined program or operator's requirement, in automatic mode, tire 1 are exitted, and reduce the air pressure of tire 1.In the occasion of graphic tire roller, because tire pressure is very high, so blow off valve can also comprise the flow regulating valve 6 being communicated with electromagnetic valve 5 gases, to control tire 1 inner high voltage gas purging speed.For fear of or alleviate the noise while bleeding a tire, particularly, in the occasion of high pressure tyre, blow off valve can also comprise the silencer 7 being communicated with electromagnetic valve 5 and flow regulating valve 6 gases.Although should be understood that the electromagnetic valve 5 shown in Fig. 1 is positioned at the upstream of flow regulating valve 6, air-flow flows into flow regulating valve 6 after electromagnetic valve 5,, in other embodiment, flow regulating valve also can be positioned at the upstream of electromagnetic valve.In Fig. 1, the position of silencer 7 is schematically, can be arranged on according to concrete silencer type the position of hope in practice.
The tire pressure control system of Fig. 2 also comprises the warning device being electrically connected to ECM20, and for example alarm lamp 16, or various other the known warning devices of buzzer phone etc.When ECM20 determines that the force value of the signal indication from sensor 15 receiving reaches the schedule time lower than predetermined value, ECM20, to alarm lamp 16 output signals, drives alarm lamp to report to the police, for example flicker.
Industrial applicibility
Tire pressure control system of the present utility model can be applied to have airtyred machine, includes but not limited to tire roller.
Referring to Fig. 1.When the air pressure in tire 1 is very low, difference of pressure between pressure gas source 2 and tire 1 (or air pressure of the back pressure in pipeline 3 and tire 1) is greater than the response pressure of second check valve 12 (and unshowned pressure gas source 2 check valves) of air pressure adjustment valve module 8, so pressure gas source 2 is inflated to tire 1 by its check valve (not shown), pipeline 3, the second check valve 12, until the difference of the air pressure in the pressure in pipeline 3 and tire 1 is less than the response pressure of the second check valve 12, the second check valve 12 is closed.At this moment, the effect due to check valve in pressure gas source 2 forms back pressure in pipeline 3.Now, the difference of the air pressure in tire 1 and back pressure is also not more than the response pressure of the first check valve 9.
When roller travels while rising and falling on more violent road surface, then first tire 1 may significantly be compressed restores to the original state again.When significantly being compressed, tire 1 wherein forms anticyclonic pressure.When the difference of pressure of tire 1 and pipeline 3 is greater than the response pressure of the first check valve 9, the first check valve 9 is opened, tire 1 is communicated with pipeline 3 gases, make the pressure decreased of tire 1, until the difference of the pressure in the air pressure in tire 1 and pipeline 3 is less than the response pressure of the first check valve 9, the first check valve 9 is closed.
While restoring to the original state again after tire 1 is significantly compressed, the air pressure of tire 1 further reduces.When the difference of pressure between pipeline 3 and tire 1 is greater than the response pressure of the second check valve 12, the second check valve 12 is opened, pipeline 3 is communicated with tire 1 gas, thereby utilize the back pressure in pipeline 3 to inflate tire 1, pressure in tire 1 is increased, until the difference of the air pressure in the pressure in pipeline 3 and tire 1 is less than the response pressure of the second check valve 12, the second check valve 12 second check valves 12 are closed.
Visible, utilize tire pressure control system of the present utility model, especially, in tire experience compression and the occasion of restoring, can automatically keep the stable gas pressure in tire, avoid tire due to wherein atmospherically lower variation cause fatigue, even break.
Tire gas control system also can comprise the controller of control presssure gas source opening and closing, or further comprises the sensor of detected pressures, thereby can make operator can control on one's own initiative the air pressure of tire.
Fig. 2 has provided an example that simultaneously uses ECM20 control wheel air pressure by way of example.When ECM20 detects the gaseous tension deficiency in tire 1 by sensor 15, ECM20 sends the electric signal of control relay 17, makes relay 17 work, and drive current is flowed through insurance 18 to compressor motor 2 by power supply E.During compressor motor 2 work, compressing high pressure gas 3 is delivered to air pressure adjustment valve module 8 by the road.In air pressure adjustment valve module 8, the second check valve 12 is opened, and gas enters tire 1 through the second check valve entrance 13 and the second check valve outlet 14.ECM20 when sensor 15 detects tire pressure and reaches setting value, the electric current supply of ECM20 slew relay 17, compressor motor 2 quits work, the second check valve 12 is closed simultaneously, completes the inflation to tire.
When gaseous tension in tire 1 is too high, the difference of pressure between tire 1 and pipeline 3 is higher than the response pressure of the first check valve 9 in air pressure adjustment valve module 8, and the first check valve 9 is opened, and high pressure gas are discharged from tire 1.ECM20 detects the too high signal of gaseous tension by sensor 15, sends the electric signal of the electromagnetic valve 5 of controlling blow off valve 4, and electromagnetic valve 5 work make high pressure gas discharge via flow regulating valve 6 and silencer 7.When the difference of pressure between tire 1 and pipeline 3 is reduced under the response pressure of the first check valve 9, the first check valve 9 is closed, and keeps the gaseous tension in tire 1; ECM20 detects pressure drop to setting value by sensor 15 simultaneously, stops to electromagnetic valve 5 power supplies, and cutoff circuit 3 is communicated with the gas of flow regulating valve 6, stops exhaust, in pipeline 3, forms back pressure, completes exhaust and the pressurize of tire 1.
When tire 1 exists in breakage or loop, exist while leaking, it is not enough all the time that sensor 15 can detect circuit pressure value for a long time, and therefore ECM20 can indicate and inflate always.When lasting inflationtime surpasses setting value, ECM20 sends alerting signal to alarm lamp 16, and alarm lamp 16 flickers, remind operator to shut down detection failure.
Visible, when tire pressure control system of the present utility model has further been used controller and sensor, can be in larger field of application automatically to tire inflate, venting and pressurize.
In addition, as shown in Figure 1, blow off valve 4 can also be included in the tire tube valve 19 being communicated with first check valve outlet the 11 and second check valve entrance 13 gases arranging on pipeline 3, for example American tire tube valve.Can regulate by manual mode the back pressure in pipeline 3 like this, thereby regulate the air pressure in tire 1.
It should be appreciated by those skilled in the art that the second check valve 12 can not be spring-loaded.In this case, as just an example, when needs are closed the second check valve 12, for example, when the inflation of tire 1 is completed, the electromagnetic pressure control valve 5 that controller 20 can detect according to sensor 15 is opened, or in some cases can manual unlocking tire tube valve 19, reduce the back pressure in pipeline 3, the second check valve is closed under the difference of pressure effect of tire pressure and pipeline back pressure.
Although above with reference to accompanying drawing, the utility model is specifically described,, these descriptions are only exemplary, are used for explaining principle of the present utility model.Should be clear, have benefited from instruction of the present utility model, those skilled in the art can carry out multiple correction, distortion and improvement for the utility model, and these corrections, distortion and improvement fall into protection domain of the present utility model.
Claims (12)
1. a tire pressure control system, is characterized in that, comprising:
Pressure gas source that can delivery pressure gas, described pressure gas source comprises check valve, prevents from flowing back to described pressure gas source from the pressed gas of described pressure gas source output; And
Air pressure adjustment valve module, wherein, described air pressure adjustment valve module comprises:
Spring-loaded the first check valve, it has the first check valve entrance and the outlet of the first check valve,
The second check valve, it has the second check valve entrance and the outlet of the second check valve,
Wherein, described the second check valve entrance is communicated with described the first check valve exit gas, and is communicated with described pressure gas source gas,
Described the second check valve outlet is communicated with described the first check valve inlet gas fluid, and can be communicated with tire gas;
The blow off valve being communicated with described the first check valve outlet and described the second check valve inlet gas;
Can detect the sensor that tire pressure output represent the signal of tire pressure; And
Controller, described controller is connected with described pressure gas source, described blow off valve and described sensor electrical, reception is from the signal of the expression tire pressure of described sensor, and respectively to the signal of described pressure gas source and described blow off valve output indication opening and closing.
2. tire pressure control system as claimed in claim 1, described blow off valve comprises the electromagnetic valve being electrically connected to described controller, described electromagnetic valve is communicated with described the first check valve outlet and described the second check valve inlet gas.
3. tire pressure control system as claimed in claim 2, is characterized in that, described blow off valve also comprises the flow regulating valve being communicated with described electromagnetic valve gas.
4. tire pressure control system as claimed in claim 1, is characterized in that, described blow off valve also comprises the silencer that described blow off valve is carried out to noise reduction.
5. tire pressure control system as claimed in claim 1, is characterized in that, described the second check valve is spring-loaded check valve.
6. tire pressure control system as claimed in claim 1, is characterized in that, described pressure gas source is compressor motor.
7. the tire pressure control system as described in any one in claim 1 to 6, is characterized in that, described sensor detects is that described pressure gas source, described the second check valve entrance and described the first check valve export the pressure in the pipeline that mutual gas is communicated with.
8. the tire pressure control system as described in any one in claim 1 to 6, is characterized in that, what described sensor detected is the pressure in the pipeline that described the second check valve exports and described the first check valve entrance is communicated with tire gas.
9. the tire pressure control system as described in any one in claim 1 to 6, it is characterized in that, also comprise the warning device being electrically connected to described controller, when described controller determines that the force value of the signal indication from described sensor receiving reaches the schedule time lower than predetermined value, described controller, to described warning device output signal, drives described warning device to report to the police.
10. tire pressure control system as claimed in claim 1, is characterized in that, described blow off valve comprises the tire tube valve being communicated with described the first check valve exit gas.
11. 1 kinds have airtyred machine, it is characterized in that, comprise the tire pressure control system as described in any one in claim 1 to 10.
12. as claimed in claim 11ly have an airtyred machine, it is characterized in that, described machine is tire roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546478.5U CN203472435U (en) | 2013-09-02 | 2013-09-02 | Tire air pressure control system and machine with pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546478.5U CN203472435U (en) | 2013-09-02 | 2013-09-02 | Tire air pressure control system and machine with pneumatic tire |
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| Publication Number | Publication Date |
|---|---|
| CN203472435U true CN203472435U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320546478.5U Expired - Lifetime CN203472435U (en) | 2013-09-02 | 2013-09-02 | Tire air pressure control system and machine with pneumatic tire |
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|---|---|
| CN (1) | CN203472435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862359A (en) * | 2017-04-18 | 2017-06-20 | 苏州蓝王机床工具科技有限公司 | Forcing press stretches cushion steam pressure control system |
| CN108349337A (en) * | 2015-11-24 | 2018-07-31 | C.R.F.阿西安尼顾问公司 | On-board centralized system for regulating the pressure of the tyres of a motor vehicle |
-
2013
- 2013-09-02 CN CN201320546478.5U patent/CN203472435U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108349337A (en) * | 2015-11-24 | 2018-07-31 | C.R.F.阿西安尼顾问公司 | On-board centralized system for regulating the pressure of the tyres of a motor vehicle |
| US20180345741A1 (en) * | 2015-11-24 | 2018-12-06 | C.R.F. Società Consortile Per Azioni | On-Board Centralized System For Regulating The Pressure Of The Tyres Of A Motor-Vehicle |
| CN108349337B (en) * | 2015-11-24 | 2020-11-17 | C.R.F.阿西安尼顾问公司 | On-board centralized system for regulating the pressure of the tyres of a motor vehicle |
| US10926589B2 (en) | 2015-11-24 | 2021-02-23 | C.R.F. Società Consortile Per Azioni | On-board centralized system for regulating the pressure of the tyres of a motor-vehicle |
| CN106862359A (en) * | 2017-04-18 | 2017-06-20 | 苏州蓝王机床工具科技有限公司 | Forcing press stretches cushion steam pressure control system |
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Granted publication date: 20140312 |