CN216508304U - Integrated air brake valve - Google Patents
Integrated air brake valve Download PDFInfo
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- CN216508304U CN216508304U CN202123339272.9U CN202123339272U CN216508304U CN 216508304 U CN216508304 U CN 216508304U CN 202123339272 U CN202123339272 U CN 202123339272U CN 216508304 U CN216508304 U CN 216508304U
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Abstract
The utility model discloses an integrated air brake valve, which comprises a valve body, a control module and an air path module, wherein the control module and the air path module are arranged on the valve body; the control valve on each air path braking module is communicated with the control module; the output section of each air path braking module is connected with the output sections of other air path braking modules through connecting valves, and the connecting valves are communicated with the control module; according to the utility model, the connecting valves are connected with the output sections of the air path braking modules, when each air path braking module has a fault, the connecting valves can be opened, and other air path braking modules supply air for the brakes of the fault air paths, so that the risk resistance of the braking valve system is improved.
Description
Technical Field
The utility model relates to the field of air brake valve manufacturing, in particular to an integrated air brake valve.
Background
The domestic rail transit industry continues to develop since the new century, the country greatly supports the development of the rail transit industry, and a plurality of non-calibrated vehicles appear in the market and teaching application; the brake valve of the existing rail transit vehicle basically adopts an imported EP2002 brake valve system, needs to be controlled and operated through a uniform interface protocol and a complex MVB communication protocol, and has overhigh cost and inconvenient maintenance for non-standard vehicle manufacturing. Furthermore, existing brake valve systems generally use separate pneumatic lines to control the brakes of the wheels, which means that in case of a failure of the separate pneumatic lines, the brakes of the wheels are not pneumatically actuated and have poor risk resistance.
Therefore, the poor risk resistance of the existing brake valve system has become a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides an integrated air brake valve, which is used for solving the technical problem that the conventional brake valve system is poor in risk resistance.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
an integrated air brake valve comprises a valve body, a control module and an air path module, wherein the control module and the air path module are arranged on the valve body, the air path module comprises a plurality of air path brake modules, the air inlet end of each air path brake module is communicated with an air source air inlet of the valve body, the air outlet end of each air path brake module is connected with a brake of a wheel corresponding to the air inlet end of the valve body, and each air path brake module is provided with a control valve; the control valve on each air path braking module is communicated with the control module; the output section of each air path braking module is connected with the output sections of other air path braking modules through connecting valves, and the connecting valves are communicated with the control module.
Preferably, the control valve of each air path brake module comprises an electric proportional valve and a brake pressure release valve; the electric proportional valve and the brake pressure release valve of each air path brake module are communicated with the control module;
the gas circuit braking module all includes: a first pipeline section, a second pipeline section and a third pipeline section; the air inlet end of the first pipeline section is connected with the air source air inlet, the air outlet end of the first pipeline section is connected with the air inlet end of the second pipeline section, the air outlet end of the second pipeline section is connected with the air inlet end of the third pipeline section, and the air outlet end of the third pipeline section is communicated with the brake of the corresponding wheel; the electric proportional valve of each air path braking module is arranged on the first pipeline section of the air path braking module; the second pipeline section of each air path brake module is connected with an exhaust port of the valve body through a brake pressure release valve of the second pipeline section; and the third pipeline section of each air path braking module is connected with the third pipeline sections of other air path braking modules through connecting valves.
Preferably, each air path braking module further comprises a fourth pipeline section, and an air inlet end of the fourth pipeline section is connected with the air source air inlet; the air outlet end is connected with the air inlet end of the second pipeline section; the control valve of each air path braking module further comprises an emergency braking valve, the emergency braking valve of each air path braking module is arranged on the fourth pipeline section, and the emergency braking valve of each air path braking module is communicated with the control module.
Preferably, a pressure sensor is arranged on an air source air inlet of the valve body, and the pressure sensor is communicated with the control module.
Preferably, the air source air inlet of the valve body is also provided with a pressure regulating valve, and the pressure regulating valve is communicated with the control module.
Preferably, the air outlet end of the third air path braking module of each air path braking module is provided with a braking pressure sensor, and the braking pressure sensors are communicated with the control module.
Preferably, the control module is a programmable controller, and the programmable controller is packaged separately and is reserved with an external standard electrical interface and a signal input interface.
The utility model has the following beneficial effects:
1. the integrated air brake valve comprises a valve body, a control module and an air path module, wherein the control module and the air path module are arranged on the valve body, the air path module comprises a plurality of air path brake modules, the air inlet end of each air path brake module is communicated with the air source air inlet of the valve body, the air outlet end of each air path brake module is connected with the corresponding brake of a wheel, and each air path brake module is provided with a control valve; the control valve on each air path braking module is communicated with the control module; the output section of each air path braking module is connected with the output sections of other air path braking modules through connecting valves, and the connecting valves are communicated with the control module; according to the utility model, the connecting valves are connected with the output sections of the air path braking modules, when each air path braking module has a fault, the connecting valves can be opened, and other air path braking modules supply air for the brakes of the fault air paths, so that the risk resistance of the braking valve system is improved.
2. In the preferred scheme, the utility model reserves an external standard electrical interface and a signal input interface, can compile corresponding program interfaces according to different teaching application requirements and integrates the program interfaces into the brake valve controller, and has larger teaching application range.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a circuit diagram of an integrated air brake valve in a preferred embodiment of the present invention;
FIG. 2 is a flow chart of the operation of the integrated air brake valve in the preferred embodiment of the present invention;
the figure is marked with:
1. a valve body; 2. a gas circuit module; 3. a programmable controller; 4. a, a brake; 5. b, a brake; 101. an air source inlet; 102. an exhaust port; 103. a, a brake pressure outlet; 104. b, a brake pressure outlet; 201. an air source pressure sensor; 202. a pressure regulating valve; 203. a, an electric proportional valve; 204. b, an electric proportional valve; 205. a, an emergency brake valve; 206. b, an emergency brake valve; 207. a brake pressure release valve; 208. b, braking a pressure release valve; 209. a connecting valve; 210. a, a brake pressure sensor; 211. and B, braking pressure sensor.
Detailed Description
The embodiments of the utility model will be described in detail below with reference to the drawings, but the utility model can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
the implementation discloses an integrated air brake valve, which comprises a valve body 1, a control module and an air path module, wherein the control module and the air path module are arranged on the valve body, the air path module 2 comprises a plurality of air path brake modules, the air inlet end of each air path brake module is communicated with an air source air inlet 101 of the valve body, the air outlet end of each air path brake module is connected with a brake of a corresponding wheel, and each air path brake module is provided with a control valve; the control valve on each air path braking module is communicated with the control module; the output section of each air path braking module is connected with the output sections of other air path braking modules through connecting valves, and the connecting valves are communicated with the control module.
According to the utility model, the connecting valves are connected with the output sections of the air path braking modules, when each air path braking module has a fault, the connecting valves can be opened, and other air path braking modules supply air for the brakes of the fault air paths, so that the risk resistance of the braking valve system is improved.
Example two:
the second preferred embodiment of the first embodiment is different from the first embodiment in that a specific structure and a workflow of using the integrated air brake valve are introduced, and the second preferred embodiment specifically includes the following steps:
the embodiment discloses an integrated air brake valve which comprises a valve body 1, an air circuit module 2 and a programmable controller 3, wherein the air circuit module 2 and the programmable controller are arranged in the valve body. The brake valve is characterized in that an air source air inlet 101, an air outlet 102, an A brake pressure outlet 103 and a B brake pressure outlet 104 are arranged on the valve body 1, and the A brake pressure outlet 103 and the B brake pressure outlet 104 are respectively connected with an A brake 4 and a B brake 5; the gas circuit module 2 is designed by a gas circuit pipeline, all valves and pressure sensors are integrated on the gas circuit module, the space utilization rate is greatly improved, the valve body 1, the gas circuit module 2 and the programmable controller 3 which are arranged in the valve body are packaged into a product, and a standard electric interface and a signal input interface are reserved, so that the installation and the use are convenient;
the air circuit module 2 is provided with an air source pressure sensor 201, a pressure regulating valve 202, an A electric proportional valve 203, a B electric proportional valve 204, an A emergency brake valve 205, a B emergency brake valve 206, an A brake pressure release valve 207, a B brake pressure release valve 208, a connecting valve 209, an A brake pressure sensor 210 and a B brake pressure sensor 211; the component A (namely the component A electric proportional valve 203, the component A emergency brake valve 205, the component A brake pressure release valve 207 and the component A brake pressure sensor 210) form an component A air path brake module, the component B (namely the component B electric proportional valve 204, the component B emergency brake valve 206, the component B brake pressure release valve 208 and the component B brake pressure sensor 211) form a component B air path brake module, the component B air path brake module respectively and independently outputs brake pressure to the component A brake and the component B brake, the brake force of the wheel axle is independently controlled, and the normal brake of the other wheel axle when one wheel axle slips can be realized by combining speed signals; on the other hand, when the air path braking module A or the air path braking module B fails and cannot work, the programmable controller 3 controls the connecting valve 209 to be opened, so that the air path braking module A and the air path braking module B are communicated to ensure the overall braking effect; the emergency brake valves a and B205 and 206 are normally open valves, and are closed when energized, and open gas pressure can be directly applied to the brake a 4 and the brake B5 when de-energized, thereby ensuring emergency braking and stopping when de-energized.
The control logic of the present invention is detailed as follows with reference to fig. 1 and 2:
the control logics of the air path braking module A and the air path braking module B are the same, and the control logic of the air path braking module A is taken as an example.
An external air source enters from an air source air inlet 101, an air source pressure sensor 201 arranged at the position transmits an air source pressure signal to a programmable controller 3, the programmable controller 3 compares the air source pressure signal with a preset reference signal through a built-in comparator to judge whether the pressure is normal or not, normally continues to judge other input signals through the built-in comparator, and otherwise, alarms or prompts an operator; after the air source pressure is adjusted to a preset pressure Pe signal through the pressure regulating valve 202, the air source pressure reaches an electrified closing state of the A electric proportional valve 203, the A emergency brake valve 205 and the A emergency brake valve 205, and the air source pressure is opened only when the power is off or an emergency brake instruction is given by an operator; at this time, the programmable controller 3 receives an external speed signal and a brake instruction signal to judge and make a corresponding action instruction, and the three conditions are as follows:
under the condition of an emergency braking instruction signal, the emergency braking valve A205 is powered off and opened, a set pressure Pe signal directly acts on the brake A4 to perform emergency braking, and the programmable controller 3 does not perform control.
Under the condition of a conventional braking instruction signal, the programmable controller 3 controls the a braking pressure release valve 207 to close, controls the a electric proportional valve 203 to open according to a certain proportion, outputs an a braking pressure Pa signal after a set pressure Pe signal passes through the a electric proportional valve 203, acts on the a brake 4 through the a braking pressure outlet 103 to brake, feeds the a braking pressure signal back to the programmable controller 3 by an a braking pressure sensor 210 arranged here, and judges whether the a braking pressure Pa signal and the set braking pressure Pc signal have deviation through a comparator arranged in the programmable controller 3:
if the A braking pressure Pa signal is greater than the braking pressure Pc signal, the programmable controller 3 controls the A electric proportional valve 203 to reduce the opening proportion until the A braking pressure Pa signal and the braking pressure Pc signal are within the set deviation;
if the brake pressure Pa signal a is smaller than the brake pressure Pc signal, the programmable controller 3 controls the electric proportional valve 203 a to increase the opening ratio until the brake pressure Pa signal a and the brake pressure Pc signal a are within the set deviation;
if the A brake pressure Pa signal is continuously lower than a set bottom limit value Pz within a set time, the programmable controller 3 judges that the A brake module has a fault, at the moment, the programmable controller 3 controls the connecting valve 209 to be opened to communicate the A brake module with the B brake module, and the B brake pressure Pb signal acts on the A brake 4 through the connecting valve 209 and the A brake pressure outlet 103 to brake, wherein the process is a dynamic adjustment process, and the programmable controller 3 can continuously adjust the A brake pressure Pa signal according to the brake pressure Pc signal until the brake stops.
In the case of no brake command signal, the programmable controller 3 controls the a electric proportional valve 203 to close and controls the a brake pressure release valve 207 to open, at which time the a brake pressure Pa signal is discharged through the a brake pressure release valve 207 and the exhaust port 102, and the a brake 4 is reset to not brake until the a brake pressure Pa signal is 0.
In summary, the output sections of the gas path braking modules are connected through the connecting valves, when each gas path braking module has a fault, the connecting valves can be opened, and other gas path braking modules supply gas for the brakes of the fault gas paths, so that the risk resistance of the braking valve system is improved. In addition, the external standard electrical interface and the external signal input interface are reserved, corresponding program interfaces can be compiled according to different teaching application requirements and integrated into the brake valve controller, and the teaching application range is wider.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An integrated air brake valve comprises a valve body, a control module and an air path module, wherein the control module and the air path module are arranged on the valve body, the air path module comprises a plurality of air path brake modules, the air inlet end of each air path brake module is communicated with an air source air inlet of the valve body, the air outlet end of each air path brake module is connected with a brake of a wheel corresponding to the air inlet end of the valve body, and a control valve is arranged on each air path brake module; the control valve on each air path braking module is communicated with the control module; the air circuit brake system is characterized in that the output section of each air circuit brake module is connected with the output sections of other air circuit brake modules through connecting valves, and the connecting valves are communicated with the control module.
2. The integrated air brake valve of claim 1, wherein the control valve of each air circuit brake module includes an electric proportional valve and a brake pressure release valve; the electric proportional valve and the brake pressure release valve of each air path brake module are communicated with the control module;
the gas circuit braking module all includes: a first pipeline section, a second pipeline section and a third pipeline section; the air inlet end of the first pipeline section is connected with the air source air inlet, the air outlet end of the first pipeline section is connected with the air inlet end of the second pipeline section, the air outlet end of the second pipeline section is connected with the air inlet end of the third pipeline section, and the air outlet end of the third pipeline section is communicated with the brake of the wheel corresponding to the third pipeline section; the electric proportional valve of each air path braking module is arranged on the first pipeline section of the air path braking module; the second pipeline section of each air path brake module is connected with an exhaust port of the valve body through a brake pressure release valve of the second pipeline section; and the third pipeline section of each air path braking module is connected with the third pipeline sections of other air path braking modules through connecting valves.
3. The integrated air brake valve of claim 2, wherein each air circuit brake module further comprises a fourth pipe segment, an air inlet end of the fourth pipe segment being connected to the air supply inlet; the air outlet end is connected with the air inlet end of the second pipeline section; the control valve of each air path braking module further comprises an emergency braking valve, the emergency braking valve of each air path braking module is arranged on the fourth pipeline section, and the emergency braking valve of each air path braking module is communicated with the control module.
4. The integrated air brake valve of claim 3, wherein a pressure sensor is disposed on an air supply inlet of the valve body, the pressure sensor being in communication with the control module.
5. The integrated air brake valve of claim 4, wherein a pressure regulating valve is further disposed on the air supply inlet of the valve body, the pressure regulating valve being in communication with the control module.
6. The integrated air brake valve of claim 5, wherein the air outlet end of the third air circuit brake module of each air circuit brake module is provided with a brake pressure sensor, and the brake pressure sensors are all in communication with the control module.
7. The integrated air brake valve of claim 5, wherein the control module is a programmable controller that is separately packaged and reserved for external standard electrical and signal input interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123339272.9U CN216508304U (en) | 2021-12-27 | 2021-12-27 | Integrated air brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123339272.9U CN216508304U (en) | 2021-12-27 | 2021-12-27 | Integrated air brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216508304U true CN216508304U (en) | 2022-05-13 |
Family
ID=81506988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123339272.9U Active CN216508304U (en) | 2021-12-27 | 2021-12-27 | Integrated air brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216508304U (en) |
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2021
- 2021-12-27 CN CN202123339272.9U patent/CN216508304U/en active Active
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