CN202345420U - Automatic and rapid bow descending device of pantograph - Google Patents
Automatic and rapid bow descending device of pantograph Download PDFInfo
- Publication number
- CN202345420U CN202345420U CN2011204391985U CN201120439198U CN202345420U CN 202345420 U CN202345420 U CN 202345420U CN 2011204391985 U CN2011204391985 U CN 2011204391985U CN 201120439198 U CN201120439198 U CN 201120439198U CN 202345420 U CN202345420 U CN 202345420U
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- China
- Prior art keywords
- bow
- pantograph
- valve body
- valve
- input end
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Abstract
The utility model discloses an automatic and rapid bow descending device of a pantograph, which is connected with a control cylinder of a bow sliding plate (1) of the pantograph and comprises a bow descending valve (2), a bow stopping valve (3), an insulated pipe (4) and an air bag (5). The bow descending valve (2) comprises an upper valve body (6), a lower valve body (7) and an elastic membrane (8) fixed between the upper valve body (6) and the lower valve body (7), wherein the upper valve body (6) is fixedly connected with the lower valve body (7). A control cavity (9) is disposed on the upper valve body (6), an air inlet cavity (10) and an air outlet cavity (11) which are separated from each other are arranged on the lower valve body (7), and an orifice (12) is disposed on the elastic membrane (8) between the control cavity (9) and the air inlet cavity (10). The input end of compressed air is connected with the air bag (5) and the air inlet cavity (10) through the insulated pipe (4), the control cavity (9) is connected with the input end of the bow stopping valve (3), and the output end of the bow stopping valve (3) is connected with the control cylinder. The automatic and rapid bow descending device of the pantograph is simple in structure, high in sensitivity, small in impact and capable of effectively cutting off a current loop before the pantograph is separated from a contact wire.
Description
Technical field
The utility model relates to the electric vehicle field, relates in particular to a kind of automatically fast prompt drop bow device of pantograph.
Background technology
At present, electric vehicle (electric vehicle described in the present specification includes but not limited to Electric power car, electric power train, motor train unit and high ferro) has become one of transport facility main in people's life.As its name suggests, electric vehicle is as the running required drive with electric energy; These electric energy mainly obtain from contact system through the pantograph that is installed on the elec. vehicle top, so the stream situation that receives of pantograph has directly determined the operation conditions of electric vehicle.
But electric locomotive is in the high-speed cruising process, and pantograph receives the load of different types, when pantograph receives damage such as bump; Bad for reducing to the contact system line loss; This moment, pantograph should break away from netting twine as early as possible, and pantograph can be cut off current return earlier before breaking away from contact wire.Existing a kind ofly be arranged on the exterior bow device that falls automatically of pantograph, though bow can fall in this device automatically when the bow net et out of order; Because this device is arranged on the pantograph, has increased the weight of pantograph underframe with the upper part, this apparatus structure is complicated; Sensitivity is low, impacts greatly, and each valve events response time is long; It is long when breaking down, to fall the bow time, and when falling bow, can not before pantograph and contact wire disengaging, cut off current return effectively.
Summary of the invention
The purpose of the utility model provides a kind of automatically fast prompt drop bow device of pantograph, and is simple in structure, highly sensitive, impacts for a short time, can before pantograph and contact wire disengaging, cut off current return effectively.
The purpose of the utility model realizes through following technical scheme:
A kind of automatically fast prompt drop bow device of pantograph is connected with the control cylinder of the bow slide plate 1 of pantograph; Comprise: fall bow valve 2, stop falling valve 3, insulation tube 4 and air bag 5;
The said bow valve 2 that falls comprises the upper valve body 6 and the following valve body 7 of captive joint and is fixed in upper valve body 6 and the elastic memberance 8 of 7 of following valve bodies; Control chamber 9 is set on the upper valve body 6; The inlet chamber 10 and outlet chamber 11 of mutual isolation are set on the following valve body 7; On the elastic memberance 8 that control chamber 9 and inlet chamber are 10 cutoff port 12 is set;
The pressurized air input end connects air bag 5 and inlet chamber 10 through insulation tube 4, and control chamber 9 connects the input end that stops falling valve 3, stops falling the mouth connection control cylinder of valve 3.
The described mouth that stops falling valve 3 also is connected with testing valve 13.
Described pressurized air input end also is connected with pressure relay 14.
Technical scheme by above-mentioned the utility model provides can find out, the automatically fast prompt drop bow device of the pantograph that the utility model embodiment provides is simple in structure, highly sensitive, impacts for a short time, can before pantograph and contact wire disengaging, cut off current return effectively.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skill in the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation one of the automatically fast prompt drop bow device of the pantograph that Fig. 1 provides for the utility model embodiment;
The structural representation two of the automatically fast prompt drop bow device of the pantograph that Fig. 2 provides for the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment of the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the protection domain of the utility model.
Embodiment
Like Fig. 1 and shown in Figure 2, a kind of automatically fast prompt drop bow device of pantograph, can be provided with underframe on, be connected with the control cylinder of the bow slide plate 1 of pantograph; What be used to control pantograph falls bow automatically, and structure specifically comprises: fall bow valve 2, stop falling valve 3, insulation tube 4 and air bag 5;
The said bow valve 2 that falls is as shown in Figure 2, comprises the upper valve body 6 and the following valve body 7 of captive joint and is fixed in upper valve body 6 and the elastic memberance 8 of 7 of following valve bodies; Control chamber 9 is set on the upper valve body 6; The inlet chamber 10 and outlet chamber 11 of mutual isolation are set on the following valve body 7; On the elastic memberance 8 that control chamber 9 and inlet chamber are 10 cutoff port 12 is set; Form a flow regulating valve, its throttling action realizes through cutoff port 12.The diameter of this cutoff port 12 is between 0.5 and 2 millimeter.Preferential adopt the 0.8-1 millimeter, thereby can reach the response characteristic of the fast prompt drop bow device of good block of bow collector of electric locomotive.
The pressurized air input end connects air bag 5 and inlet chamber 10 through insulation tube 4, and control chamber 9 connects the input end that stops falling valve 3, stops falling the mouth connection control cylinder of valve 3.
The described mouth that stops falling valve 3 also is connected with testing valve 13.Whether be used to test the said device of the utility model can normal operation.
Described pressurized air input end also is connected with air pressure relay 14.Be connected with locomotive control, pressure decay in pipeline system, occur through electrical signal notice locomotive, pantograph with contact before netting twine disengages, line circuit breaker can cut off earlier.Thereby guarantee that pantograph can be from the disengagement of contact netting twine under the situation of charged load.
Principle of work
It is said that to fall bow valve 2 as shown in Figure 1 being appreciated that be a flow regulating valve 15 and a 2/2-way Pneumatic reversal valve 16.
When the bow slide plate 1 of pantograph lifted, pressurized air was pushed elastic memberance 8 through pipeline open through inlet chamber 10 and is discharged in the environment by outlet chamber 11, and just pressurized air directly is discharged in the environment through 2/2-way Pneumatic reversal valve 16;
Meanwhile, pressurized air also arrives control cylinder through cutoff port 12 control of access chambeies 9 simultaneously to air bag 5 inflations, because the good airproof performance of system, control chamber 9 internal pressures raise, elastic memberance 8 seal inlet chambers 10 and outlet chamber 11; Just control 16 switching-overs of 2/2-way Pneumatic reversal valve, 2/2-way Pneumatic reversal valve 16 is closed;
Keep above-mentioned off condition, thereby realize rising bow by the compressed air-driven in compressed air line and the air bag 5.
When bow normally falls in pantograph; Start the automatically controlled exhaust that is arranged on pressurized air input end front end and carry out exhaust; It is poor to produce cut-back pressure between control chamber 9 and the inlet chamber 10, and promptly the pressure in the control chamber 9 is greater than pressure in the inlet chamber 10, elastic memberance 8 seal inlet chambers 10 and outlet chambers 11; Just, 2/2-way Pneumatic reversal valve 16 state that keeps shut, this moment, pantograph was leaned on the chopper bar of conducting oneself with dignity.
When breaking, may wear to limit or pipeline generation leakage owing to pantograph pan; In the control chamber 9 just the compressed air pressure of the pilot piping of 2/2-way Pneumatic reversal valve 16 will descend; Control chamber 9 and pressurized air input end just produce positive pressure between the inlet chamber 10 poor; Be that pressure in the control chamber 9 is less than pressure in the inlet chamber 10; Deficiency just can not be closed 2/2-way Pneumatic reversal valve 16 so that elastic memberance 8 is sealed into air cavity 10 and outlet chamber 11, and the pressurized air in air bag 5 and the pipeline is discharged in the atmosphere through outlet chamber 11.Simultaneously, the air pressure relay 14 that has contact switch will move, and pressure decay in pipeline system, occur through electrical signal notice locomotive, pantograph with contact before netting twine disengages, line circuit breaker can cut off earlier.Thereby guarantee that pantograph can be from the disengagement of contact netting twine under the situation of charged load.
The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical personnel of being familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. the automatically fast prompt drop bow device of a pantograph is connected with the control cylinder of the bow slide plate (1) of pantograph; It is characterized in that, comprising: fall bow valve (2), stop falling valve (3), insulation tube (4) and air bag (5);
Said fall the bow valve (2) comprise the upper valve body (6) and the following valve body (7) of captive joint and be fixed in upper valve body (6) and following valve body (7) between elastic memberance (8); Control chamber (9) is set on the upper valve body (6); The inlet chamber (10) and outlet chamber (11) of mutual isolation are set on the following valve body (7); On the elastic memberance (8) between control chamber (9) and inlet chamber (10) cutoff port (12) is set;
The pressurized air input end connects air bag (5) and inlet chamber (10) through insulation tube (4), and control chamber (9) connects the input end that stops falling valve (3), stops falling the mouth connection control cylinder of valve (3).
2. the automatically fast prompt drop bow device of pantograph according to claim 1 is characterized in that, the described mouth that stops falling valve (3) also is connected with testing valve (13).
3. the automatically fast prompt drop bow device of pantograph according to claim 1 is characterized in that described pressurized air input end also is connected with pressure relay (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204391985U CN202345420U (en) | 2011-11-08 | 2011-11-08 | Automatic and rapid bow descending device of pantograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204391985U CN202345420U (en) | 2011-11-08 | 2011-11-08 | Automatic and rapid bow descending device of pantograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202345420U true CN202345420U (en) | 2012-07-25 |
Family
ID=46534445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204391985U Expired - Lifetime CN202345420U (en) | 2011-11-08 | 2011-11-08 | Automatic and rapid bow descending device of pantograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202345420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015112174A1 (en) * | 2014-01-27 | 2015-07-30 | Norgren, Inc. | Improved multistage pantograph retraction apparatus and related method |
| US20210122245A1 (en) * | 2019-10-24 | 2021-04-29 | Faiveley Transport Tours | Rapid descent device for a pantograph |
-
2011
- 2011-11-08 CN CN2011204391985U patent/CN202345420U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015112174A1 (en) * | 2014-01-27 | 2015-07-30 | Norgren, Inc. | Improved multistage pantograph retraction apparatus and related method |
| US20210122245A1 (en) * | 2019-10-24 | 2021-04-29 | Faiveley Transport Tours | Rapid descent device for a pantograph |
| US11565590B2 (en) * | 2019-10-24 | 2023-01-31 | Faiveley Transport Tours | Rapid descent device for a pantograph |
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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 |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |