CN213109016U - Pantograph main air supply control air circuit - Google Patents
Pantograph main air supply control air circuit Download PDFInfo
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- CN213109016U CN213109016U CN202021856026.3U CN202021856026U CN213109016U CN 213109016 U CN213109016 U CN 213109016U CN 202021856026 U CN202021856026 U CN 202021856026U CN 213109016 U CN213109016 U CN 213109016U
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Abstract
The utility model discloses a pantograph main air supply control air circuit, which comprises a main air supply, an auxiliary pantograph lifting pump and an auxiliary air cylinder which are connected in parallel with an air supply inlet of a pantograph valve plate; pressure switches are respectively arranged on pipelines between the main air supply and auxiliary pantograph lifting pumps and the pantograph valve plate, and one-way valves are respectively arranged on outlet pipelines of the main air supply and auxiliary pantograph lifting pumps; a safety valve is arranged on an outlet pipeline of the auxiliary bow raising pump; and a pressure gauge is arranged at an air supply inlet of the pantograph valve plate. The auxiliary air supply device consists of an auxiliary arch lifting pump, an auxiliary air cylinder and a safety valve. The utility model discloses respectively through the pressure switch before main air feed and the supplementary air feed device, detect the pressure state of air feed system to provide vehicle control system, rely on artifical manual mode operation before the change, improved the safe and reliable performance of pantograph main air feed system, reduced the driver and operated the degree of difficulty, promote the operating efficiency.
Description
Technical Field
The utility model relates to a pantograph air feed gas circuit of urban rail vehicle especially relates to a main air feed control gas circuit of pantograph.
Background
The pantograph is generally used as a current receiving device of the electric transmission and traction locomotive vehicle, and the pantograph generally adopts compressed air as a driving source, so the vehicle needs to be provided with a compressed air supply device for the pantograph, the pantograph can be ensured to maintain the required flow and pressure of the compressed air in the pantograph lifting process and the current receiving state, and the reliability of the compressed air supply directly influences the current receiving quality of the pantograph.
At present, the common practice is to adopt two independent wind sources of a vehicle main wind supply device or an auxiliary wind supply device to provide power for a pantograph, necessary interlocking protection and control are lacked between the two systems, when the main wind supply pressure of the vehicle is insufficient, manual switching is needed and wind is supplemented for the auxiliary wind supply device, and the operation efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pantograph owner air feed control gas circuit.
The utility model aims at realizing through the following technical scheme:
the main air supply control air circuit of the pantograph of the utility model comprises a main air supply, an auxiliary pantograph lifting pump and an auxiliary air cylinder which are connected in parallel with an air supply inlet of a pantograph valve plate;
pressure switches are respectively arranged on pipelines between the main air supply and auxiliary pantograph lifting pumps and the pantograph valve plate, and one-way valves are respectively arranged on outlet pipelines of the main air supply and auxiliary pantograph lifting pumps;
a safety valve is arranged on an outlet pipeline of the auxiliary bow lifting pump;
and a pressure gauge is arranged at an air supply inlet of the pantograph valve plate.
By the foregoing the technical scheme provided by the utility model, the embodiment of the utility model provides a pantograph owner air feed control gas circuit can be according to the actual wind pressure condition of vehicle owner air feed and supplementary air feed device, and the air supply system of automatic selection pantograph can mend the wind for supplementary air feed device automatically under the equal not enough condition of two kinds of air feed system wind pressures, has improved the reliable performance of air supply system, promotes operating efficiency.
Drawings
Fig. 1 is a schematic diagram of a gas circuit of a main air supply control gas circuit of a pantograph according to an embodiment of the present invention.
In the figure:
g-main air supply, M-auxiliary arch raising pump, V-auxiliary air reservoir, U01-pressure switch, U02.01-main air supply one-way valve, U02.02-auxiliary air supply device one-way valve, U03-safety valve, U04-pressure switch and U05-pressure gauge.
Detailed Description
Embodiments of the present invention will be described in further detail below. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The utility model discloses a pantograph owner air feed control gas circuit, the concrete implementation mode of its preferred is:
the air supply device comprises a main air supply, an auxiliary pantograph lifting pump and an auxiliary air cylinder which are connected in parallel with an air supply inlet of a pantograph valve plate;
pressure switches are respectively arranged on pipelines between the main air supply and auxiliary pantograph lifting pumps and the pantograph valve plate, and one-way valves are respectively arranged on outlet pipelines of the main air supply and auxiliary pantograph lifting pumps;
a safety valve is arranged on an outlet pipeline of the auxiliary bow lifting pump;
and a pressure gauge is arranged at an air supply inlet of the pantograph valve plate.
The auxiliary arch lifting pump, the auxiliary air cylinder and the safety valve form an auxiliary air supply device.
The utility model discloses a pantograph owner air feed control gas circuit can be according to the actual wind pressure condition of vehicle owner air feed and supplementary air feed device, and the air feed system of automatic selection pantograph can mend the wind for supplementary air feed device automatically when under the equal not enough condition of two kinds of air feed system wind pressures, has improved air feed system's reliable performance, promotes operating efficiency.
The utility model discloses in:
pressure switch U01 installs between main air feed G and the pantograph valve plate for detect the compressed air pressure of main air feed, manometer U05 is used for showing the atmospheric pressure of pantograph air feed gas circuit.
And the pressure switch U04 is arranged between the auxiliary air cylinder V and the pantograph valve plate and used for detecting the pressure of the compressed air of the auxiliary air supply device.
The one-way valves U02 are respectively disposed in front of the outlets of the main air supply device and the auxiliary air supply device in a group, and are used for preventing backflow of compressed air caused by a difference in compressed air pressure between the main air supply device and the auxiliary air supply device.
The pressure switches are used for detecting the real-time compressed air pressure states of the main air supply device and the auxiliary air supply device, necessary signals are provided for a vehicle control system, whether the auxiliary arch lifting pump of the auxiliary air supply device needs to be started or not is judged, meanwhile, the two one-way valves can protect the main air supply device and the auxiliary arch lifting pump from being connected in series, the fact that the pantograph only uses one air supply as a driving air source is guaranteed, and air supply reliability and working efficiency are improved.
The specific embodiment is as follows:
as shown in fig. 1, a pantograph owner air feed control gas circuit, between mainly used rail vehicle owner air supply system and the pantograph valve plate, the drive air supply that finally realizes the pantograph is main to be selected with supplementary air feed within a definite time initiative between main air feed, guarantees pantograph drive air supply reliability, and its concrete structure includes: the device comprises a main air supply G, an auxiliary pantograph lifting pump M, an auxiliary air cylinder V, a pressure switch U01, two sets of one-way valves U02, a safety valve U03, a pressure switch U04 and a pressure gauge U05.
The main air supply comprises a main air supply G, a pressure switch U01 and a one-way valve U02.01, the main air supply G is an air source system of the vehicle, the pressure switch U01 is used for detecting the pressure of a main air supply air path, and the one-way valve U02.01 is used for preventing air of the auxiliary air supply device from entering the main air supply system.
The auxiliary air supply device comprises an auxiliary pantograph lifting pump M, an auxiliary air cylinder V, a safety valve U03, a one-way valve U02.02 and a pressure switch U04, when the main air supply pressure and the auxiliary air supply pressure cannot meet the pantograph requirement, a vehicle control system gives a control signal, the auxiliary pantograph lifting pump M is started, and compressed air in a set pressure range is supplemented in the auxiliary air cylinder V; the pressure switch U04 is arranged between the auxiliary air cylinder V and the pantograph valve plate, is used for detecting the compressed air pressure of the auxiliary air supply device and provides a judgment signal for starting and stopping the auxiliary pantograph lifting pump M of the vehicle control system; when the wind pressure of the auxiliary air supply device is high by a certain set value, the safety valve U03 starts pressure relief protection. The one-way valve U02.02 is used for preventing the air of the main air supply G from entering the auxiliary pantograph lifting pump M
And the pressure gauge U05 is used for displaying the air inlet pressure of the air supply circuit of the pantograph.
The utility model discloses respectively through the pressure switch before main air feed and the supplementary air feed device, detect the pressure state of air feed system to provide vehicle control system, be used for judging the status signal who starts the supplementary air feed device, guarantee pantograph air feed control gas circuit pressure reliability, rely on artifical manual mode before the change, improve the operating efficiency.
The working principle of the specific embodiment is as follows:
as shown in fig. 1, before the pantograph is started to raise the pantograph, the vehicle control system receives the signal states of the pressure switches U01 and U04, and the pressure switch U01 detects the main air supply pressure value and is normally set to be closed when the pressure value is higher than 6.5Bar and normally open when the pressure value is lower than 4.0 Bar; the pressure switch U02 detects the pressure value of the air supply entering the pantograph valve plate (which is the maximum pressure value in the main air supply and auxiliary air supply devices), and is normally closed when the pressure value is higher than 8.0Bar and normally open when the pressure value is lower than 6.5 Bar;
before the bow is lifted, if the U01 is in a normally open state, the main air supply pressure value is lower than 4.0Bar, and the minimum pressure requirement of the bow lifting cannot be met; if the received U04 is in a normally open state, the air pressure of the auxiliary air supply device is also lower than 6.5Bar, and the pressure required by pantograph lifting cannot be ensured, at the moment, the vehicle control system starts the auxiliary pantograph lifting pump M to work, compressed air is filled into the auxiliary air cylinder V, after the auxiliary air pressure is raised to 8.0Bar, the pressure switch U04 jumps to a normally closed state, the vehicle control system stops the auxiliary pantograph lifting pump M, and at the moment, the auxiliary air pressure meets the pantograph lifting condition, and a pantograph lifting instruction can be executed. When the auxiliary air pressure is higher than the main air supply air pressure, the one-way valve U02.01 prevents the auxiliary air pressure from entering the main air supply in series, and the auxiliary pantograph-raising pump M is prevented from working for a long time and shortening the service life; if the auxiliary air pressure is higher than 9.0Bar under the abnormal condition, the safety valve U03 automatically releases pressure to ensure the safety of the auxiliary air path.
If the U01 is in a normally open state, the normally closed state of the U04 is received at the moment, the fact that the air pressure of the auxiliary air supply device is also higher than 6.5Bar is indicated, the pressure required by pantograph lifting can be guaranteed, the vehicle control system starts a pantograph lifting command at the moment, and the auxiliary pantograph lifting device is used for directly lifting the pantograph. The one-way valve U02.01 can also prevent the auxiliary wind pressure from entering the main wind supply.
If the U01 is in a normally closed state, the main air supply pressure value is higher than 4.0Bar, the main air supply can meet the minimum pressure requirement of pantograph lifting, and at the moment, the vehicle control system starts a pantograph lifting instruction to directly lift the pantograph and does not start the auxiliary pantograph lifting pump M any more. At this time, if the U04 is received to be in a normally open state, the pantograph air supply pressure is lower than 6.5Bar but higher than 4.0Bar, if the U04 is received to be in a normally closed state, the pantograph air supply pressure is higher than 8.0Bar, a specific pressure value can be displayed through a pressure gauge U05, and the pantograph lifting is completed by using main air supply no matter what the U04 is. The one-way valve U02.02 can ensure that the main air supply pressure does not cross the auxiliary pantograph lifting pump M.
Compared with the prior art, the utility model, only have pressure switch U01 among the prior art and detect its state, do not adopt U04 to further judge the state of supplementary wind pressure, when pressure switch U01 is normally open state, need manual operation to assist and rise bow pump M, for supplementary reservoir V fills the wind, because there is no pressure switch U04, can only judge whether to stop assisting and rise bow pump M for the indication value of people observation manometer U05; the bow lifting process increases the operation of a driver, improves the operation complexity and reduces the working efficiency. The utility model provides a pantograph owner air feed control gas circuit increases pressure switch U04, judges for vehicle control system and rises the bow condition and provide the input, judges through the logic and the condition restriction, realizes pantograph owner air feed gas circuit autonomous selection and the automatic air supplement of supplementary air feed device, reduces the driver operation degree of difficulty, promotes reliability and efficiency.
To sum up, the embodiment of the utility model provides an improve the safe and reliable performance of system, reduced the driver and operated the degree of difficulty, promoted the operating efficiency.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. A main air supply control air circuit of a pantograph is characterized by comprising a main air supply, an auxiliary pantograph lifting pump and an auxiliary air cylinder which are connected in parallel with an air supply inlet of a pantograph valve plate;
pressure switches are respectively arranged on pipelines between the main air supply and auxiliary pantograph lifting pumps and the pantograph valve plate, and one-way valves are respectively arranged on outlet pipelines of the main air supply and auxiliary pantograph lifting pumps;
a safety valve is arranged on an outlet pipeline of the auxiliary bow lifting pump;
and a pressure gauge is arranged at an air supply inlet of the pantograph valve plate.
2. The pantograph main air supply control air circuit according to claim 1, wherein the auxiliary pantograph lifting pump, the auxiliary air reservoir and the safety valve constitute an auxiliary air supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021856026.3U CN213109016U (en) | 2020-08-31 | 2020-08-31 | Pantograph main air supply control air circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021856026.3U CN213109016U (en) | 2020-08-31 | 2020-08-31 | Pantograph main air supply control air circuit |
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| Publication Number | Publication Date |
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| CN213109016U true CN213109016U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021856026.3U Active CN213109016U (en) | 2020-08-31 | 2020-08-31 | Pantograph main air supply control air circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682144A (en) * | 2021-09-08 | 2021-11-23 | 中车青岛四方机车车辆股份有限公司 | Full-automatic pantograph lifting and closing master-slave-master-slave control method and system for train and railway vehicle |
-
2020
- 2020-08-31 CN CN202021856026.3U patent/CN213109016U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682144A (en) * | 2021-09-08 | 2021-11-23 | 中车青岛四方机车车辆股份有限公司 | Full-automatic pantograph lifting and closing master-slave-master-slave control method and system for train and railway vehicle |
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