CN218949161U - Braking gas circuit system of double-shaft commercial vehicle - Google Patents
Braking gas circuit system of double-shaft commercial vehicle Download PDFInfo
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- CN218949161U CN218949161U CN202223154104.7U CN202223154104U CN218949161U CN 218949161 U CN218949161 U CN 218949161U CN 202223154104 U CN202223154104 U CN 202223154104U CN 218949161 U CN218949161 U CN 218949161U
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Abstract
The utility model discloses a braking air circuit system of a double-shaft commercial vehicle, which comprises: the brake device comprises a main air passage, a driving control air passage and a brake air passage, wherein the main air passage comprises a front axle main air passage and a rear axle main air passage; the main gas circuit comprises a brake valve, and the brake valve is connected with the front axle gas storage cylinder; the main gas circuit of the rear axle comprises a rear axle gas storage cylinder, the rear axle gas storage cylinder is connected with a brake valve, a double relay valve structure is adopted, the response time and the release time of the vehicle service brake are faster, and the running safety and reliability of the vehicle are improved; the gas circuit of the braking system adopts a VOSS quick connector, so that the assembly and maintenance speed is high, and the self-sealing effect is better; the scheme can meet the special working condition requirement with higher market braking performance requirement under the participation of a non-electronic braking technology, and has low cost; the ABS valve controls the braking anti-lock of two wheels on the same side, so that the braking stability of the vehicle is higher; the layout planning of the whole vehicle, especially the long wheelbase vehicle type, is facilitated, and the brake design state of the whole vehicle is reduced.
Description
Technical Field
The utility model relates to the technical field of brake gas circuits, in particular to a brake gas circuit system of a double-shaft commercial vehicle.
Background
In the field of commercial vehicles, pneumatic braking systems are commonly used, and according to national regulation requirements, the time elapsed from the actuation of the brake pedal to the time when the pressure in the most unfavorable brake chamber reaches 75% of its steady-state value must not exceed 0.6s when the brake is suddenly applied within 0.2 s. In recent years, as the running speed of the vehicle is higher and higher, the traffic road condition is more and more complex, the safety requirement of a driver on running of the vehicle is higher and higher, and the running condition of a plurality of domestic heavy trucks is severe, so that the requirement on the braking response time is more severe. The response time of the brake system is taken as the most important index of the braking performance of the commercial vehicle, and is directly related to the safety and the reliability of the vehicle, so the response time of the brake system is particularly important in the design of the brake system of the commercial vehicle.
The air circuit system in the prior art, such as the Chinese utility model application number CN201910429075.4, provides a two-drive electric vehicle braking energy recovery air circuit based on a two-way check valve and a linear exhaust electromagnetic valve, and belongs to the technical field of electric vehicle braking energy recovery.
Although the problem that it presented has been solved to above-mentioned patent, the air supply need be left and right sides 4 brake air chambers air feed simultaneously behind a relay valve and two ABS valves, lead to whole braking system to lag in braking response time and exhaust response time, influence vehicle security, reliability, moreover receive whole car to arrange, the wheelbase is long scheduling factor influence, whole car braking response time is very probably not satisfied the regulation requirement, each host computer factory is in order to satisfy the motorcycle type development requirement, braking system design state is more, receive whole car to arrange the influence greatly, therefore, the application provides a braking gas circuit system of biax commercial car.
Disclosure of Invention
The utility model aims to provide a braking air circuit system of a double-shaft commercial vehicle, which is characterized in that a double-relay valve structure is adopted, so that the response time and the release time of the vehicle service braking are faster, and the running safety and reliability of the vehicle are improved.
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
a brake air circuit system for a dual axle commercial vehicle, comprising: the brake device comprises a main air passage, a driving control air passage and a brake air passage, wherein the main air passage comprises a front axle main air passage and a rear axle main air passage;
the front axle main gas circuit comprises a brake valve, and the brake valve is connected with a front axle gas storage cylinder;
the rear axle main gas circuit comprises a rear axle gas storage cylinder, and the rear axle gas storage cylinder is connected with a brake valve.
Preferably, the driving control air circuit comprises a front axle driving control air circuit and a rear axle driving control air circuit.
Preferably, the front axle driving control air circuit comprises a front axle left side relay valve and a front axle right side relay valve, and the front axle left side relay valve and the front axle right side relay valve are respectively connected with the brake valve.
Preferably, the rear axle driving control gas circuit comprises a rear axle left side relay valve and a rear axle right side relay valve, and the rear axle left side relay valve and the rear axle right side relay valve are respectively connected with the brake valve.
Preferably, the braking air circuit comprises a front axle braking air circuit and a rear axle braking air circuit, and the front axle braking air circuit is divided into a left braking air circuit of a front axle and a right braking air circuit of the front axle.
Preferably, the front axle left side braking air circuit comprises a front axle left side ABS valve, and the front axle left side ABS valve is respectively connected with the front axle left braking air chamber I and the front axle left braking air chamber II.
Preferably, the front axle right side braking air circuit comprises a front axle right side ABS valve, and the front axle right side ABS valve is respectively connected with the front axle right braking air chamber I and the front axle right braking air chamber II.
Preferably, the rear axle braking air circuit comprises a rear axle left braking air circuit and a rear axle right braking air circuit, the rear axle left braking air circuit comprises a rear axle left ABS valve, and the rear axle left ABS valve is respectively connected with a rear axle left braking air chamber I and a rear axle left braking air chamber II.
Preferably, the rear axle right side braking air path comprises a rear axle right side ABS valve, and the rear axle right side ABS valve is respectively connected with the rear axle right braking air chamber I and the rear axle right braking air chamber II.
The utility model has at least the following beneficial effects:
1. by adopting the double relay valve structure, the response time and the release time of the vehicle service brake are faster, and the running safety and reliability of the vehicle are improved;
2. the gas circuit of the braking system adopts a VOSS quick connector, so that the assembly and maintenance speed is high, and the self-sealing effect is better;
3. the scheme can meet the special working condition requirement with higher market braking performance requirement under the participation of a non-electronic braking technology, and has low cost;
the ABS valve controls the braking anti-lock of two wheels on the same side, so that the braking stability of the vehicle is higher;
5. the layout planning of the whole vehicle, especially the long wheelbase vehicle type, is facilitated, and the brake design state of the whole vehicle is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a schematic structural view of the present utility model.
Reference numerals illustrate:
1. a brake valve; 2-1, a front axle air cylinder; 2-2, a rear axle air cylinder; 3-1, a relay valve on the left side of the front axle; 3-2, a relay valve on the right side of the front axle; 3-3, a relay valve on the left side of the rear axle; 3-4, a relay valve on the right side of the rear axle; 4-1, a front axle left side ABS valve; 4-2, a front axle right side ABS valve; 4-3, a rear axle left side ABS valve; 4-4, a rear axle right side ABS valve; 5-1, a left brake chamber I of a front axle; 5-2, a left brake chamber of the front axle II; 5-3, a front axle right brake chamber I; 5-4, a front axle right brake chamber II; 6-1, a rear axle left brake chamber I; 6-2, a rear axle left brake chamber II; 6-3, a rear axle right brake chamber I; 6-4, a rear axle right brake chamber II; 7. a main air path; 8. a driving control air path; 9. and a brake air path.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.
Referring to fig. 1, an embodiment of the present utility model provides a brake air path system of a dual-axle commercial vehicle, including: the brake valve 1, the front axle air reservoir 2-1, the rear axle air reservoir 2-2, the front axle left relay valve 3-1, the front axle right relay valve 3-2, the rear axle left relay valve 3-3, the rear axle right relay valve 3-4, the front axle left ABS valve 4-1, the front axle right ABS valve 4-2, the rear axle left ABS valve 4-3, the rear axle right ABS valve 4-4, the front axle left brake air chamber 1-5, the front axle left brake air chamber 2-2, the front axle right brake air chamber 5-3, the front axle right brake air chamber 5-4, the rear axle left brake air chamber 6-1, the rear axle left brake air chamber 2-2, the rear axle right brake air chamber 6-3, the rear axle right brake air chamber 6-4, the main air chamber 7, the driving control air chamber 8 and the brake air chamber 9.
The main air channel 7 is divided into a front axle main air channel and a rear axle main air channel, wherein the front axle main air channel is connected with a front axle air reservoir 2-1 through a brake valve 1, and is respectively connected with a front axle left side relay valve 3-1 and a front axle right side relay valve 3-2 through the front axle air reservoir 2-1; the main gas circuit of the rear axle is connected with a rear axle gas storage cylinder 2-2 through a brake valve 1, and then is respectively connected with a left relay valve 3-3 of the rear axle and a right relay valve 3-4 of the front axle through the rear axle gas storage cylinder 2-2 to jointly form a main gas circuit system, and the connection structures of the main gas circuit 7 are all connected by VOSS quick connectors.
The driving control air circuit 8 is divided into a front axle driving control air circuit and a rear axle driving control air circuit, the front axle driving control air circuit is connected with a front axle left side relay valve 3-1 and a front axle right side relay valve 3-2 through a brake valve 1, the rear axle driving control air circuit is connected with the rear axle left side relay valve 3-3 and the rear axle right side relay valve 3-3 through the brake valve 1, a driving control air circuit system is formed together, and the driving control air circuit 8 connecting structures are all connected through VOSS quick connectors.
The front axle braking air circuit 9 is divided into a front axle braking air circuit and a rear axle braking air circuit, the front axle braking air circuit is divided into a front axle left side braking air circuit and a front axle right side braking air circuit, the front axle left side braking air circuit is connected with a front axle left side ABS valve 4-1 through a front axle left side relay valve 3-1, and is respectively connected with a front axle left braking air chamber I5-1 and a front axle left braking air chamber II 5-2 through a front axle left side ABS valve 4-1; the front axle right braking air circuit is connected with a front axle right ABS valve 4-2 through a front axle right relay valve 3-2, and is respectively connected with a front axle right braking air chamber I5-3 and a front axle right braking air chamber II 5-4 through the front axle right ABS valve 4-2;
the rear axle braking air circuit is divided into a rear axle left braking air circuit and a rear axle right braking air circuit, the rear axle left braking air circuit is connected with a rear axle left ABS valve 4-3 through a rear axle left relay valve 3-3, and is respectively connected with a rear axle left braking air chamber I6-1 and a rear axle left braking air chamber II 6-2 through the rear axle left ABS valve 4-3;
the right braking air path of the rear axle is connected with the right ABS valve 4-4 of the rear axle through the right relay valve 3-4 of the rear axle, and is respectively connected with the right braking air chamber I6-3 of the rear axle and the right braking air chamber II 6-4 of the rear axle through the right ABS valve 4-4 of the rear axle; the brake air circuit system 9 achieves vehicle service braking through the action of air pressure on the air chamber, and the connection structures of the service brake air circuit 9 are connected by VOSS quick connectors.
The working principle of the utility model is as follows: when the main air channel 7 is ventilated, air of the main air channel 7 enters the air reservoirs 2-1 and 2-2, and then the air inlets of the relay valves 3-1, 3-2,3-3 and 3-4 are respectively led to the air outlets of the air reservoirs 2-1 and 2-2, and the other air outlets of the air reservoirs 2-1 and 2-2 are respectively led to the front axle brake air inlet and the rear axle brake air inlet of the brake valve 1. At the moment, the air outlet of the brake valve 1 is not ventilated, the control port of the relay valve is not ventilated, the air outlets of the relay valves 3-1, 3-2,3-3 and 3-4 are not ventilated, the air chamber does not have braking action, and the vehicle runs normally.
When a driver steps on a brake pedal, a valve core of the brake valve 1 is opened, air enters control ports of front and rear bridge relay valves 3-1, 3-2,3-3 and 3-4 respectively from an air outlet of the brake valve 1, the valve core of the relay valve is opened at the moment, and the air enters an ABS valve through an air outlet of the relay valve and can flow to a brake air path 9.
When the brake air circuit 9 is ventilated, air enters the front air chamber and the rear air chamber of the vehicle through the air outlets of the front ABS valve 4-1, the rear ABS valve 4-2, the front ABS valve 4-3 and the rear ABS valve 4-4, and the push rod in the air chamber is pushed to drive the brake shoe to expand and hold the wheel tightly, so that the vehicle is braked. The vehicle has a wheel locking trend in the process of service braking, and the front and rear axle ABS valves can avoid the locking phenomenon of the vehicle by adjusting the on-off of gas.
When the driver releases to tread the brake pedal, the valve core of the brake valve 1 is closed, and residual gas in the driving control gas circuit 8 is discharged through the brake valve 1 and the front and rear bridge relay valves 3-1, 3-2,3-3 and 3-4, and at the moment, the valve core of the relay valve is closed. Residual gas in the brake gas circuit 9 and gas in the air chamber driving cavity are discharged through the relay valve, the ABS valve and the air chamber air outlet, and the air chamber push rod drives the brake shoe to recover, so that the braking state of the vehicle is relieved.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (6)
1. A brake air circuit system for a dual-axle commercial vehicle, comprising:
the brake device comprises a main air passage (7), a driving control air passage (8) and a brake air passage (9), wherein the main air passage (7) comprises a front axle main air passage and a rear axle main air passage;
the front axle main gas circuit comprises a brake valve (1), and the brake valve (1) is connected with a front axle gas storage cylinder (2-1);
the rear axle main gas circuit comprises a rear axle gas storage cylinder (2-2), and the rear axle gas storage cylinder (2-2) is connected with a brake valve (1);
the driving control air circuit (8) comprises a front axle driving control air circuit and a rear axle driving control air circuit, the front axle driving control air circuit comprises a front axle left side relay valve (3-1) and a front axle right side relay valve (3-2), the front axle left side relay valve (3-1) and the front axle right side relay valve (3-2) are respectively connected with the brake valve (1), the rear axle driving control air circuit comprises a rear axle left side relay valve (3-3) and a rear axle right side relay valve (3-4), and the rear axle left side relay valve (3-3) and the rear axle right side relay valve (3-4) are respectively connected with the brake valve (1).
2. The brake air path system of a dual-axle commercial vehicle of claim 1, wherein: the brake air circuit (9) comprises a front axle brake air circuit and a rear axle brake air circuit, and the front axle brake air circuit is divided into a front axle left brake air circuit and a front axle right brake air circuit.
3. The brake air path system of a dual-axle commercial vehicle of claim 2, wherein: the left side braking gas circuit of the front axle comprises a left side ABS valve (4-1) of the front axle, and the left side ABS valve (4-1) of the front axle is respectively connected with a left braking gas chamber I (5-1) of the front axle and a left braking gas chamber II (5-2) of the front axle.
4.A brake air circuit system for a dual-axle commercial vehicle as defined in claim 3, wherein: the front axle right side braking gas circuit comprises a front axle right side ABS valve (4-2), and the front axle right side ABS valve (4-2) is respectively connected with a front axle right braking gas chamber I (5-3) and a front axle right braking gas chamber II (5-4).
5. The brake air path system of a dual-axle commercial vehicle of claim 4, wherein: the rear axle braking gas circuit comprises a rear axle left side braking gas circuit and a rear axle right side braking gas circuit, the rear axle left side braking gas circuit comprises a rear axle left side ABS valve (4-3), and the rear axle left side ABS valve (4-3) is respectively connected with a rear axle left braking gas chamber I (6-1) and a rear axle left braking gas chamber II (6-2).
6. The brake air path system of a dual-axle commercial vehicle of claim 5, wherein: the rear axle right side braking gas circuit comprises a rear axle right side ABS valve (4-4), and the rear axle right side ABS valve (4-4) is respectively connected with a rear axle right braking gas chamber I (6-3) and a rear axle right braking gas chamber II (6-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223154104.7U CN218949161U (en) | 2022-11-24 | 2022-11-24 | Braking gas circuit system of double-shaft commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223154104.7U CN218949161U (en) | 2022-11-24 | 2022-11-24 | Braking gas circuit system of double-shaft commercial vehicle |
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| CN218949161U true CN218949161U (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223154104.7U Active CN218949161U (en) | 2022-11-24 | 2022-11-24 | Braking gas circuit system of double-shaft commercial vehicle |
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| CN (1) | CN218949161U (en) |
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- 2022-11-24 CN CN202223154104.7U patent/CN218949161U/en active Active
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