CN201736981U - Air brake system for light trucks - Google Patents
Air brake system for light trucks Download PDFInfo
- Publication number
- CN201736981U CN201736981U CN2010202417079U CN201020241707U CN201736981U CN 201736981 U CN201736981 U CN 201736981U CN 2010202417079 U CN2010202417079 U CN 2010202417079U CN 201020241707 U CN201020241707 U CN 201020241707U CN 201736981 U CN201736981 U CN 201736981U
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- Prior art keywords
- valve
- air tank
- dryer
- air
- rapid release
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Abstract
The utility model discloses an air brake system for light trucks. The system comprises an air compressor, a working air reservoir, a master brake valve, a first quick release valve, a second quick release valve, front axle brakes, rear axle brakes and an auxiliary air reservoir, and is characterized in that a dryer, a regeneration air reservoir and a four-circuit protection valve are further included, wherein the air compressor is connected with the dryer through a single pipeline, the regeneration air reservoir is connected with the dryer through a single pipeline, the outlet of the dryer is connected with the inlet of the four-circuit protection valve, two outputs of the four-circuit protection valve are respectively connected with the inputs of two independent chambers of the working air reservoir, and the other output of the four-circuit protection valve is connected with the auxiliary air reservoir. Due to the dryer, the regeneration air reservoir and other components, the service lives of brake elements are greatly prolonged, and the reliability of the brake system is remarkably improved, so as to remarkably improve the driving safety.
Description
Technical field
The utility model relates to automobile technical field, particularly a kind of air braking system that is used for light truck.
Background technology
Along with expanding economy, market is more urgent to the requirement that drive safety improves; Along with auto parts and components technical development maturation, some parts costs that only were applied to originally on heavy duty truck, the passenger car also progressively descend simultaneously.In conjunction with these advantage, light truck faces the demand of continuous upgrading, therefore need design the brand new air braking system to light truck.
As shown in Figure 1, in the prior art, the air braking system of light truck adopts wet air tank 3 to reach the purpose of dry air, because use wet air tank to remove moisture, so also need Air compressor 1 is increased pressure regulating valve 2.Be earlier by bilateral check valve 4 before gas enters main air reservoir 5, when this structure can guarantee one tunnel leakage, other one tunnel gas that keep-ups pressure does not oppositely run off, but the pressed gas that comes from Air compressor can run off by leakage line, can't add in the pipeline of normal operation.And in the prior art, propons drg 6 and back axle drg 7 all are drum brake mechanisms.
This air braking system has following problem:
1. wet air tank dewaters by condensation, and the dry air effect is bad, and the moisture that often has in the gas circuit can cause faults such as hardware corrosion, rubber seal be full of cracks, lubricating grease decomposition failure, line clogging with the oil of scurrying of Air compressor; Ponding in the valve element can cause misoperation, and winter, cold freezing can cause that braking element work is not normal.Gas circuit ponding not only has a strong impact on the braking element life-span, and has influenced travel safety greatly.
2. for the bilateral check valve, when a gas circuit is leaked, check valve can make another gas circuit keep-up pressure, but the supplementary pressure gas that can't continue (new pressed gas can flow to the pipeline of leakage), pressed gas in main air reservoir uses up, and has just lost braking potential.
3. though the drum brake mechanism braking effectiveness factor is big than plate disc brake, its heat dispersion is poor, insensitivity is poor (heat stability and water stability).In long-time and multi-frequency braking procedure, braking force can significantly be decayed, and influences drive safety.
The utility model content
(1) technical matters that will solve
The technical matters that the utility model solved is: how to reduce the ponding of gas system system, improve the bad situation of system's water removal effect, the situation that another gas circuit can't continue to brake when solving single gas circuit and losing efficacy, and the situation of drg insensitivity difference.
(2) technical scheme
In order to achieve the above object; the utility model proposes a kind of light truck air braking system; comprise Air compressor; the work air tank; the braking main valve; the propons drg; the back axle drg; auxiliary air tank; first rapid release valve; second rapid release valve; also comprise: dryer; regeneration air tank and four-loop protection valve; described Air compressor is connected with described dryer by the single tube road; and described regeneration air tank is connected with described dryer through the single tube road; the outlet of described dryer is connected with the inlet of described four-loop protection valve; and two outputs of described four-loop protection valve link to each other with the input of two separate chamber of described work air tank respectively; another output of described four-loop protection valve is connected with described auxiliary air tank; the output of two separate chamber of described work air tank is connected with two arrival ends of described braking main valve respectively; when carrying out brake operation; the exit end of described braking main valve is communicated with arrival end, and the gas at described braking main valve arrival end place enters described propons drg and described back axle drg by described first rapid release valve and described second rapid release valve respectively.
Wherein, the described propons drg that links to each other with described first rapid release valve is a plate disc brake.
Wherein, the described back axle drg that links to each other with described second rapid release valve is a drum brake mechanism.
Wherein, described regeneration air tank, work air tank and auxiliary air tank also have first blow off valve, second blow off valve and the 3rd blow off valve respectively.
Wherein, also have and described auxiliary air tank bonded assembly energy brake butterfly valve and clutch booster.
(3) beneficial effect
Technique scheme of the present utility model has following advantage: by the regeneration air tank that uses dryer and be mated, can actv. remove the moisture in the gas circuit;
By using four-loop protection valve, make that under the situation that single gas circuit lost efficacy the another one gas circuit can continue braking with lower pressure, reaches maintenance point up to vehicle;
By using the propons plate disc brake, in the time of can avoiding brake overheating and immersion, the risk that braking force declines to a great extent effectively improves insensitivity.
Description of drawings
Fig. 1 is the moving schematic diagram of device of the automobile double control of prior art;
Fig. 2 is an air braking system schematic diagram of the present utility model;
Fig. 3 is the scheme drawing of dryer of the present utility model.
The specific embodiment
In order to be illustrated more clearly in the technical solution of the utility model, be further described below in conjunction with accompanying drawing.
Figure 2 shows that the schematic diagram of an embodiment of light truck air braking system of the present utility model; this system comprises: a kind of light truck air braking system; comprise Air compressor 8; work air tank 9; braking main valve 10; first rapid release valve 17; second rapid release valve 18; propons drg 19; back axle drg 20; auxiliary air tank 13; also comprise: dryer 14; regeneration air tank 15 and four-loop protection valve 16; Air compressor 8 is connected with dryer 14 by the single tube road; and regeneration air tank 15 is connected with dryer 14 through the single tube road; the outlet of dryer 14 is connected with the inlet of four-loop protection valve 16; and two outputs of four-loop protection valve 16 link to each other with the input of two separate chamber of work air tank 9 respectively; another output of four-loop protection valve 16 is connected with assisting air tank 13; the output of two separate chamber of work air tank 9 is connected with two arrival ends of braking main valve 10 respectively; after stepping on brake pedal; the exit end of braking main valve 10 is communicated with arrival end; the gas at braking main valve 10 arrival end places enters propons drg 19 and back axle drg 20 by first rapid release valve 17 and second rapid release valve 18 respectively, thereby plays the effect of service brake.
Wherein, the propons drg 19 that links to each other with first rapid release valve 17 is plate disc brake.
Wherein, the back axle drg 20 that links to each other with second rapid release valve 18 is drum brake mechanism.
Wherein, regeneration air tank 15, work air tank 9 and auxiliary air tank 13 also have first blow off valve 21, second blow off valve 22 and the 3rd blow off valve 23 respectively.
Wherein, auxiliary air tank 13 also connects energy brake butterfly valve 24 and clutch booster 25, thus satisfy these mechanisms use the gas demand.
By behind the dryer 14, enter four-loop protection valve 16 from the pressed gas of Air compressor 8 output through the single tube road.The feasible pressed gas that brings moisture (condensation) from Air compressor 8 of this mode is exported dry pressed gas all by behind the molecular sieve structure (being desiccant) in the dryer 14.Because dryer 14 plays the effect of removing ponding, so replaced wet air tank.And therefore dryer 14 double band pressure regulating valve off-loads do not need to increase pressure regulating valve 2 of the prior art, as shown in Figure 1.
But dryer 14 must use with regeneration air tank 15, in the course of action of pressure regulating valve off-load, the drying compressed gas of regeneration air tank 15 is oppositely by dryer 14, the feasible moisture exhaust to atmosphere that is adsorbed on the desiccant, desiccant obtains regeneration activating, thereby can repeated usage, as shown in Figure 3.
Forward Fig. 2 now again to, flow directly into four-loop protection valve 16 from dryer 14, be divided into relatively independent multichannel delivery pressure gas again, enter two separate chamber and the auxiliary air tank 13 of work air tank 9 respectively through the gas of super-dry.The work characteristics of four-loop protection valve 16 is wherein one the tunnel to leak, it is independent that several in addition roads can keep, and continue the pipeline of constantly importing normal operation from the pressed gas of Air compressor 8 in a steady stream, just normal service condition of pressure is low, but the braking that can not influence under this situation is used; A road of leakage then can input pressure gas.After can guaranteeing certain bar pipeline leakage like this, vehicle can drive to maintenance point always.And the air braking system of light truck of the prior art does not adopt the four-loop protection valve structure; gas is earlier by bilateral check valve 4 before entering air tank; as shown in Figure 1; when this structure can guarantee one tunnel leakage; other one the tunnel keep-ups pressure does not oppositely run off; but the pressed gas that comes from Air compressor then can run off by leakage line, can't add in the pipeline of normal operation.Vehicle can only utilize the auxiliary gas in the air tank to carry out limited braking several times like this, treats that pressed gas exhausts, and has just lost braking potential fully.
Gas circuit connection and existing light truck-type connection indifference from work air tank and auxiliary air tank do not elaborate at this.
At last, as shown in Figure 2, propons drg 19 of the present utility model is plate disc brakies, in conjunction with the drum brake mechanism 20 of back axle.This total mass that is configured in light truck is little, under the enough prerequisite of braking force, can make full use of the advantage of plate disc brake, effectively increases the stability of brake efficiency.During operating modes such as drg heating that frequent braking causes to long descending and drg immersion, the problem that brake efficiency descends has good solution.
The above only is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (5)
1. light truck air braking system; comprise Air compressor (8); work air tank (9); braking main valve (10); propons drg (19); back axle drg (20); auxiliary air tank (13); first rapid release valve (17); second rapid release valve (18); it is characterized in that; also comprise: dryer (14); regeneration air tank (15) and four-loop protection valve (16); described Air compressor (8) is connected with described dryer (14) by the single tube road; and described regeneration air tank (15) is connected with described dryer (14) through the single tube road; the outlet of described dryer (14) is connected with the inlet of described four-loop protection valve (16); and two outputs of described four-loop protection valve (16) link to each other with the input of two separate chamber of described work air tank (9) respectively; another output of described four-loop protection valve (16) is connected with described auxiliary air tank (13); the output of two separate chamber of described work air tank (9) is connected with two arrival ends of described braking main valve (10) respectively; when carrying out brake operation; the exit end of described braking main valve (10) is communicated with arrival end, and the gas at described braking main valve (10) arrival end place enters described propons drg (19) and described back axle drg (20) by described first rapid release valve (17) and described second rapid release valve (18) respectively.
2. light truck air braking system as claimed in claim 1 is characterized in that, the described propons drg (19) that links to each other with described first rapid release valve (17) is a plate disc brake.
3. light truck air braking system as claimed in claim 2 is characterized in that, the described back axle drg (20) that links to each other with described second rapid release valve (18) is a drum brake mechanism.
4. light truck air braking system as claimed in claim 3, it is characterized in that described regeneration air tank (15), work air tank (9) and auxiliary air tank (13) also have first blow off valve (21), second blow off valve (22) and the 3rd blow off valve (23) respectively.
5. light truck air braking system as claimed in claim 2 is characterized in that, also has and described auxiliary air tank (13) bonded assembly energy brake butterfly valve (24) and clutch booster (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202417079U CN201736981U (en) | 2010-06-29 | 2010-06-29 | Air brake system for light trucks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202417079U CN201736981U (en) | 2010-06-29 | 2010-06-29 | Air brake system for light trucks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736981U true CN201736981U (en) | 2011-02-09 |
Family
ID=43552263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202417079U Expired - Lifetime CN201736981U (en) | 2010-06-29 | 2010-06-29 | Air brake system for light trucks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736981U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121445A (en) * | 2011-11-18 | 2013-05-29 | 北汽福田汽车股份有限公司 | New energy passenger car and air brake air supply unloading system thereof |
| CN104015713A (en) * | 2014-04-16 | 2014-09-03 | 中国重汽集团成都王牌商用车有限公司 | Pneumatic braking system for truck |
| CN107628011A (en) * | 2017-09-30 | 2018-01-26 | 中车青岛四方车辆研究所有限公司 | Checking cylinder gas concentration unit |
-
2010
- 2010-06-29 CN CN2010202417079U patent/CN201736981U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121445A (en) * | 2011-11-18 | 2013-05-29 | 北汽福田汽车股份有限公司 | New energy passenger car and air brake air supply unloading system thereof |
| CN104015713A (en) * | 2014-04-16 | 2014-09-03 | 中国重汽集团成都王牌商用车有限公司 | Pneumatic braking system for truck |
| CN104015713B (en) * | 2014-04-16 | 2016-06-29 | 中国重汽集团成都王牌商用车有限公司 | A kind of lorry air braking system |
| CN107628011A (en) * | 2017-09-30 | 2018-01-26 | 中车青岛四方车辆研究所有限公司 | Checking cylinder gas concentration unit |
| CN107628011B (en) * | 2017-09-30 | 2020-06-26 | 中车青岛四方车辆研究所有限公司 | Gas recovery device for brake cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |