CN102476646A - Fixed-pressure air charging device for free plunger of direct release valve - Google Patents
Fixed-pressure air charging device for free plunger of direct release valve Download PDFInfo
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- CN102476646A CN102476646A CN2010105630413A CN201010563041A CN102476646A CN 102476646 A CN102476646 A CN 102476646A CN 2010105630413 A CN2010105630413 A CN 2010105630413A CN 201010563041 A CN201010563041 A CN 201010563041A CN 102476646 A CN102476646 A CN 102476646A
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- release valve
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Abstract
The invention discloses a fixed-pressure air charging device for a free plunger of a direct release valve. The fixed-pressure air charging device comprises a direct release valve, a fixed-pressure air chamber, a pressure keeping valve, a reflux valve, a check valve, a free plunger, an acting plunger, a train pipe, a control air cylinder and a three-pressure principle main valve, wherein the direct release valve is connected with the fixed-pressure air chamber through an adapter plate air channel; the direct release valve is connected with an acting plunger integrated membrane plate in a sliding way; the acting plunger is connected with the free plunger in a sliding way; the free plunger is connected with the reflux valve in a sliding way; the reflux valve is connected with the check valve through a valve body processing structure; the check valve is connected with the control air cylinder and the three-pressure principle main valve in sequence through an air channel; the direct release valve is connected with the train pipe and the three-pressure principle main valve in sequence through an air channel; and the free plunger is connected with the pressure keeping valve through a valve body processing structure. In the invention, the train pipe and a conversion air chamber are taken as control pressures, a release and communication train pipe and a working air cylinder are charged before the conversion air chamber, and the free plunger is adopted after releasing and resetting, so that the conversion air chamber can be charged to a fixed pressure.
Description
Technical field
The present invention relates to a kind of direct release valve plunger level pressure of moving about and fill wind apparatus.
Background technology
The novel locomotive brake is the novel locomotive brake that China a new generation adopts electric empty associating, the control of microcomputer instructionization, and its target is to replace electric and diesel locomotive principal mode brake such as existing DK-1 and JZ-7 comprehensively.In the technical scheme basic demand, clearly propose: locomotive brake gear can be handled the car brakeing machine of once alleviating, and also can handle the car brakeing machine of graduated release.Therefore, the distributing valve of novel locomotive brake should have two or three pressure immixture functions, and main valve is then required pure three pressure textures.Two or three pressure are concise and to the point descriptions of equilibrium of pressure relation of railway brake control cock, and two pressure are meant that master control mechanism equilibrium relation by two kinds of pressure controls, generally is train pipe and auxiliary reservoir, or train pipe and work reservoir.Three pressure are meant that then master control mechanism equilibrium relation by three kinds of pressure controls, refers generally to train pipe, constant pressure reservoir and brake cylinder.Its concrete function is through the change of equilibrium of pressure relation, controls inflation, exhaust, the pressurize of whole train braking cylinder, thereby controls train inlet parking (brake), speed governing, alleviation actions such as (declutching).
Therefore, how realizing changing as required between two pressure and three pressure, can guarantee that changing air chamber is charged to level pressure, is the technical matters that needs to be resolved hurrily.
Summary of the invention
The objective of the invention is, provide a kind of the realization to change as required between two pressure and three pressure, can guarantee simultaneously to change direct release valve that air chamber can the be charged to level pressure plunger level pressure of moving about and fill wind apparatus.
Goal of the invention of the present invention realizes through following technical scheme:
A kind of direct release valve plunger level pressure of moving about is filled wind apparatus, comprises level pressure air chamber, pressure holding valve, effect plunger, train pipe, control air cylinder and three pressure principle main valves, and its design feature is,
A. also comprise direct release valve, reflux valve, boiler check valve and the plunger that moves about;
B. said direct release valve is connected through the keysets gas circuit with the level pressure air chamber;
C. said direct release valve is with effect plunger one and adopt the lamina membranacea sliding block joint; The effect plunger and the plunger sliding block joint that moves about; Plunger and reflux valve sliding block joint move about; Reflux valve adopts the valve body processing structure to be connected with boiler check valve, and boiler check valve is connected through gas circuit with three pressure principle main valves with control air cylinder successively;
D. said direct release valve is connected through gas circuit with three pressure principle main valves with the train pipe successively;
E. the said plunger that moves about adopts the valve body processing structure to be connected with pressure holding valve.
The said plunger that moves about adopts the metallic sheath structure of lead brass material.
The metallic sheath external cylindrical surface of the said plunger that moves about is provided with the rubber ring recess, is provided with rubber seal in the groove, and the metallic sheath inside of the said plunger that moves about is provided with push rod seal ring and smooth inner bore.
The resistance of the outside rubber seal of the said plunger that moves about is greater than the resistance of inner push rod seal ring.
The central upper portion line of said direct release valve is provided with change-over valve lamina membranacea plunger.
Owing to adopted technique scheme, beneficial effect of the present invention is:
As control presssure, it is consistent with the principal mode brake to alleviate pressure reduction with train pipe and conversion air chamber for this device, alleviates to link up train pipe and work reservoir prior to the inflation of conversion air chamber, alleviate reset after the employing plunger that moves about, guaranteed that the conversion air chamber can be charged to level pressure.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present invention.
Reference numeral: the 1st, direct release valve, the 2nd, the level pressure air chamber, the 3rd, pressure holding valve, the 4th, reflux valve, the 5th, boiler check valve, the 6th, the plunger that moves about, the 7th, the effect plunger, the 8th, the train pipe, the 9th, control air cylinder, 10 is three pressure principle main valves.
The specific embodiment
Shown in Fig. 1, a kind of direct release valve plunger level pressure of moving about is filled wind apparatus, comprises direct release valve 1, and its effect is to realize changing as required between two pressure and three pressure; Level pressure air chamber 2, its effect are as one of control presssure of equilibrium relation about the effect plunger; Pressure holding valve 3; Its effect is to prevent train pipe over reduction and emergency exhaust decompression glancing impact; The conversion air chamber does not drop to zero with the train pipe; But receive hold-off valve control to maintain a rational limit, and guaranteed to alleviate conformability with the rear portion motor vehicle braking system, avoid causing the strong longitudinal impact of the vertical mistake of car team; Reflux valve 4, its effect are to prevent the pressure air counter-flow automatically; Boiler check valve 5, its effect are that the pressure air that prevents rubber sandwich valve top automatically refluxes; The plunger 6 that moves about, its effect are to guarantee that the level pressure air chamber fills wind to authorized pressure alleviating the pressurize position; Effect plunger 7, its effect are the equilibrium relations of the whole direct release valve of control; Train pipe 8, its effect are one of control presssures of equilibrium relation about the effect plunger; Control air cylinder 9, its effect are one of control presssures of three pressure principle main valve master control mechanism equilibrium relations; Three pressure principle main valves 10, its effect is the core component of train braking control system, comes the exhaust of filling of control brake cylinder through it, thereby controls train inlet parking (brake), speed governing, alleviation actions such as (declutching).
Directly release valve 1 is connected through the keysets gas circuit with level pressure air chamber 2.
Directly release valve 1 is connected through gas circuit with three pressure principle main valves 10 with train pipe 8 successively.
Directly the central upper portion line of release valve 1 is provided with change-over valve lamina membranacea plunger.
The plunger 6 that moves about adopts the valve body processing structure to be connected with pressure holding valve 3.
The plunger 6 that moves about adopts the metallic sheath structure of lead brass material, and the metallic sheath external cylindrical surface of the plunger 6 that moves about is provided with the rubber ring recess, is provided with rubber seal in the groove, and the metallic sheath inside of the plunger 6 that moves about is provided with push rod seal ring and smooth inner bore.Move about the resistance of outside rubber seal of plunger 6 greater than the resistance of inner push rod seal ring.
Among the present invention, when main valve 10 was in inflation alleviation position, train tube pressure rose; At this moment, change-over valve lamina membranacea plunger moves to the smallest limit position, and (this distributing valve is connected with direct release valve through gas circuit to have linked up three pressure principle distributing valves; Its position is in direct release valve outside; Concrete ON TRAINS, its position is at car body underframe medium position) control air cylinder lead to the path of train pipe, the big lamina membranacea equilibrium relation of main valve is destroyed and is in and once alleviates the position.The moving smallest limit position that also moves to down of change-over valve lamina membranacea plunger sleeve fix shaft shoulder belt on the lamina membranacea plunger; When train Guan Zaiyu control air cylinder is linked up, also realize inflation to the conversion air chamber through radial hole on the lamina membranacea plunger sleeve and the gas fill port on the lamina membranacea plunger.
When the main valve train tube pressure stops to rise near level pressure; Both sides pressure reduction is set up new equilibrium relation about acting on reflux valve spring resistance, the cushion rubber resistance on the lamina membranacea plunger, the deadweight of lamina membranacea plunger and the lamina membranacea on the change-over valve lamina membranacea plunger; The travelling backwards of lamina membranacea plunger is alleviated the pressurize position up to closing the path of main valve control air cylinder towards the train pipe, being in this moment.The resistance of the outside rubber seal of plunger is greater than inner push rod seal ring resistance owing to move about; Add the influence of deadweight; Alleviating pressurize position lamina membranacea plunger travelling backwards up to closing the main valve control air cylinder when leading to the path of train pipe; Because the lamina membranacea plunger down location shaft shoulder is with between trip with plunger, plunger sleeve does not rise with plunger simultaneously to make under plunger the location shaft shoulder contact before with plunger sleeve, and the train pipe is still being inflated changing air chamber.
This installs the train pipe and changes air chamber as control presssure, and it is consistent with the principal mode brake to alleviate pressure reduction, and the alleviation communication train pipe and the reservoir of working are inflated prior to the conversion air chamber, take to inflate the plunger that moves about after alleviation resets, and have guaranteed that the conversion air chamber can be charged to level pressure.
Claims (5)
1. the direct release valve plunger level pressure of moving about is filled wind apparatus; Comprise direct release valve (1), level pressure air chamber (2), pressure holding valve (3), effect plunger (7), train pipe (8), control air cylinder (9) and three pressure principle main valves (10); It is characterized in that
A. also comprise reflux valve (4), boiler check valve (5) and the plunger that moves about (6);
B. said direct release valve (1) is connected through the keysets gas circuit with level pressure air chamber (2);
C. said direct release valve (1) is with effect plunger (7) one and adopt the lamina membranacea sliding block joint; The effect plunger (7) and plunger (6) sliding block joint that moves about; Plunger (6) and reflux valve (4) sliding block joint move about; Reflux valve (4) adopts the valve body processing structure to be connected with boiler check valve (5), and boiler check valve (5) is connected through gas circuit with three pressure principle main valves (10) with control air cylinder (9) successively;
D. said direct release valve (1) is connected through gas circuit with three pressure principle main valves (10) with train pipe (8) successively;
E. the said plunger that moves about (6) adopts the valve body processing structure to be connected with pressure holding valve (3).
2. the direct release valve according to claim 1 plunger level pressure of moving about is filled wind apparatus, it is characterized in that, the said plunger that moves about (6) adopts the metallic sheath structure of lead brass material.
3. the direct release valve according to claim 2 plunger level pressure of moving about is filled wind apparatus; It is characterized in that; The metallic sheath external cylindrical surface of the said plunger that moves about (6) is provided with the rubber ring recess; Be provided with rubber seal in the groove, the metallic sheath inside of the said plunger that moves about (6) is provided with push rod seal ring and smooth inner bore.
4. the direct release valve according to claim 3 plunger level pressure of moving about is filled wind apparatus, it is characterized in that the resistance of the outside rubber seal of the said plunger that moves about (6) is greater than the resistance of inner push rod seal ring.
5. the direct release valve according to claim 1 plunger level pressure of moving about is filled wind apparatus, it is characterized in that the central upper portion line of said direct release valve (1) is provided with change-over valve lamina membranacea plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105630413A CN102476646A (en) | 2010-11-29 | 2010-11-29 | Fixed-pressure air charging device for free plunger of direct release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105630413A CN102476646A (en) | 2010-11-29 | 2010-11-29 | Fixed-pressure air charging device for free plunger of direct release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102476646A true CN102476646A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105630413A Pending CN102476646A (en) | 2010-11-29 | 2010-11-29 | Fixed-pressure air charging device for free plunger of direct release valve |
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| CN (1) | CN102476646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650594A (en) * | 2021-09-24 | 2021-11-16 | 眉山中车制动科技股份有限公司 | Pressure braking device, braking system and rail vehicle |
| CN115158268A (en) * | 2022-07-04 | 2022-10-11 | 眉山中车制动科技股份有限公司 | Method for conversion between stage relieving and direct relieving and three-pressure brake valve device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1391105A (en) * | 1971-07-23 | 1975-04-16 | Knorr Bremse Gmbh | Brake control device |
| US3957314A (en) * | 1973-11-24 | 1976-05-18 | Knorr-Bremse Gmbh | Device for monitoring the flow in the air line of an air brake system on a railway vehicle |
| JP2008189130A (en) * | 2007-02-05 | 2008-08-21 | Shinko Electric Co Ltd | Brake control device for freight train |
| CN201205923Y (en) * | 2008-04-25 | 2009-03-11 | 南车四方机车车辆股份有限公司 | Brake switching valve |
-
2010
- 2010-11-29 CN CN2010105630413A patent/CN102476646A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1391105A (en) * | 1971-07-23 | 1975-04-16 | Knorr Bremse Gmbh | Brake control device |
| US3957314A (en) * | 1973-11-24 | 1976-05-18 | Knorr-Bremse Gmbh | Device for monitoring the flow in the air line of an air brake system on a railway vehicle |
| JP2008189130A (en) * | 2007-02-05 | 2008-08-21 | Shinko Electric Co Ltd | Brake control device for freight train |
| CN201205923Y (en) * | 2008-04-25 | 2009-03-11 | 南车四方机车车辆股份有限公司 | Brake switching valve |
Non-Patent Citations (1)
| Title |
|---|
| 黄军: "二三压力转换阀方案设计", 《电力机车与城轨车辆》, vol. 29, no. 03, 20 May 2006 (2006-05-20) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650594A (en) * | 2021-09-24 | 2021-11-16 | 眉山中车制动科技股份有限公司 | Pressure braking device, braking system and rail vehicle |
| CN115158268A (en) * | 2022-07-04 | 2022-10-11 | 眉山中车制动科技股份有限公司 | Method for conversion between stage relieving and direct relieving and three-pressure brake valve device |
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Application publication date: 20120530 |